阅读说明：本技术 双工质联合循环热泵装置 (Double-working medium combined cycle heat pump device ) 是由 李鸿瑞 李华玉 于 2021-08-04 设计创作，主要内容包括：本发明提供双工质联合循环热泵装置,属于制冷与热泵技术领域。压缩机有循环工质通道与供热器连通之后分成两路——第一路经膨胀机与回热器连通,第二路经第二供热器与第二压缩机连通,第二压缩机还有循环工质通道与回热器连通之后回热器再有冷凝液管路经节流阀与蒸发器连通,蒸发器还有循环工质通道与回热器连通,回热器还有循环工质通道与压缩机连通；低温压缩机有循环工质通道经蒸发器和低温节流阀与低温蒸发器连通,低温蒸发器还有循环工质通道与低温压缩机连通；供热器和第二供热器还分别有被加热介质通道与外部连通,低温蒸发器还有低温热介质通道与外部连通,膨胀机连接压缩机并传输动力,形成双工质联合循环热泵装置。(The invention provides a double-working-medium combined cycle heat pump device, belonging to the technical field of refrigeration and heat pumps. The compressor is divided into two paths after a circulating working medium channel is communicated with a heat supplier, wherein the first path is communicated with a heat regenerator through an expander, the second path is communicated with a second compressor through a second heat supplier, the second compressor is also provided with a circulating working medium channel which is communicated with the heat regenerator, then the heat regenerator is further provided with a condensate liquid pipeline which is communicated with an evaporator through a throttle valve, the evaporator is also provided with a circulating working medium channel which is communicated with the heat regenerator, and the heat regenerator is also provided with a circulating working medium channel which is communicated with the compressor; the low-temperature compressor is provided with a circulating working medium channel which is communicated with the low-temperature evaporator through the evaporator and the low-temperature throttle valve, and the low-temperature evaporator is also provided with a circulating working medium channel which is communicated with the low-temperature compressor; the heat supply device and the second heat supply device are also respectively communicated with the outside through heated medium channels, the low-temperature evaporator is also communicated with the outside through a low-temperature heat medium channel, and the expander is connected with the compressor and transmits power to form the double-working-medium combined cycle heat pump device.)

1. The double-working medium combined cycle heat pump device mainly comprises a compressor, an expander, a second compressor, a throttle valve, a heat supplier, a second heat supplier, an evaporator, a heat regenerator, a low-temperature compressor, a low-temperature throttle valve and a low-temperature evaporator; the compressor (1) is provided with a circulating working medium channel which is communicated with the heat supplier (5) and then divided into two paths, wherein the first path is communicated with the heat regenerator (8) through the expander (2), the second path is communicated with the second compressor (3) through the second heat supplier (6), the heat regenerator (8) is communicated with the heat regenerator (8) after the second compressor (3) is also provided with the circulating working medium channel, a condensate pipeline is communicated with the evaporator (7) through the throttle valve (4), the evaporator (7) is also provided with the circulating working medium channel which is communicated with the heat regenerator (8), and the heat regenerator (8) is also provided with the circulating working medium channel which is communicated with the compressor (1); the low-temperature compressor (A) is provided with a circulating working medium channel which is communicated with a low-temperature evaporator (C) through an evaporator (7) and a low-temperature throttle valve (B), and the low-temperature evaporator (C) is also provided with a circulating working medium channel which is communicated with the low-temperature compressor (A); the heat supply device (5) and the second heat supply device (6) are also respectively communicated with the outside through a heated medium channel, the low-temperature evaporator (C) is also communicated with the outside through a low-temperature heat medium channel, and the expander (2) is connected with the compressor (1) and transmits power to form the double-working-medium combined cycle heat pump device.

2. The double-working medium combined cycle heat pump device mainly comprises a compressor, an expander, a second compressor, a throttle valve, a heat supplier, a second heat supplier, an evaporator, a heat regenerator, a third heat supplier, a low-temperature compressor, a low-temperature throttle valve and a low-temperature evaporator; the compressor (1) is provided with a circulating working medium channel which is communicated with the heat supplier (5) and then divided into two paths, wherein the first path is communicated with the heat regenerator (8) through the expander (2), the second path is communicated with the second compressor (3) through the second heat supplier (6), the second compressor (3) is also provided with a circulating working medium channel which is communicated with the heat regenerator (8) through the third heat supplier (9), then the heat regenerator (8) is communicated with the evaporator (7) through a condensate pipeline through the throttle valve (4), the evaporator (7) is also provided with a circulating working medium channel which is communicated with the heat regenerator (8), and the heat regenerator (8) is also provided with a circulating working medium channel which is communicated with the compressor (1); the low-temperature compressor (A) is provided with a circulating working medium channel which is communicated with a low-temperature evaporator (C) through an evaporator (7) and a low-temperature throttle valve (B), and the low-temperature evaporator (C) is also provided with a circulating working medium channel which is communicated with the low-temperature compressor (A); the heat supply device (5), the second heat supply device (6) and the third heat supply device (9) are respectively communicated with the outside through a heated medium channel, the low-temperature evaporator (C) is also communicated with the outside through a low-temperature heat medium channel, and the expander (2) is connected with the compressor (1) and transmits power to form the dual-working-medium combined cycle heat pump device.

3. The double-working medium combined cycle heat pump device mainly comprises a compressor, an expander, a second compressor, a throttle valve, a heat supplier, a second heat supplier, an evaporator, a heat regenerator, a spray pipe, a second heat regenerator, a low-temperature compressor, a low-temperature throttle valve and a low-temperature evaporator; the compressor (1) is provided with a circulating working medium channel which is communicated with a heat supplier (5) and then divided into two paths, wherein the first path is communicated with the expander (2), the second path is communicated with the second compressor (3) through a second heat supplier (6), the second compressor (3) is also provided with a circulating working medium channel which is communicated with the heat regenerator (8) through a second heat regenerator (11) and then divided into two paths, the first path is led out from the middle or the tail end of the heat regenerator (8), passes through a spray pipe (10) and the second heat regenerator (11) and then is communicated with the expander (2) through a middle air inlet port, the second path is led out from the tail end of the heat regenerator (8) and then is communicated with the evaporator (7) through a throttle valve (4), the expander (2) is also provided with a circulating working medium channel which is communicated with the heat regenerator (8), the evaporator (7) is also provided with a circulating working medium channel which is communicated with the heat regenerator (8), and the heat regenerator (8) is also provided with a circulating working medium channel which is communicated with the compressor (1); the low-temperature compressor (A) is provided with a circulating working medium channel which is communicated with a low-temperature evaporator (C) through an evaporator (7) and a low-temperature throttle valve (B), and the low-temperature evaporator (C) is also provided with a circulating working medium channel which is communicated with the low-temperature compressor (A); the heat supply device (5) and the second heat supply device (6) are also respectively communicated with the outside through a heated medium channel, the low-temperature evaporator (C) is also communicated with the outside through a low-temperature heat medium channel, and the expander (2) is connected with the compressor (1) and transmits power to form the double-working-medium combined cycle heat pump device.

4. The double-working medium combined cycle heat pump device mainly comprises a compressor, an expander, a second compressor, a throttle valve, a heat supplier, a second heat supplier, an evaporator, a heat regenerator, a reheater, a low-temperature compressor, a low-temperature throttle valve and a low-temperature evaporator; the compressor (1) is provided with a circulating working medium channel which is communicated with the heat supplier (5) and then divided into two paths, wherein the first path is communicated with the expander (2), the expander (2) is also provided with a reheating circulating working medium channel which is communicated with the expander (2) through a reheater (12), the expander (2) is also provided with a circulating working medium channel which is communicated with the heat regenerator (8), the second path is communicated with the second compressor (3) through a second heat supplier (6), the second compressor (3) is also provided with a circulating working medium channel which is communicated with the reheater (12), then the heat regenerator (8) is provided with a condensate pipeline which is communicated with the evaporator (7) through a throttle valve (4), the evaporator (7) is also provided with a circulating working medium channel which is communicated with the heat regenerator (8), and the circulating working medium channel of the evaporator (8) is also communicated with the compressor (1); the low-temperature compressor (A) is provided with a circulating working medium channel which is communicated with a low-temperature evaporator (C) through an evaporator (7) and a low-temperature throttle valve (B), and the low-temperature evaporator (C) is also provided with a circulating working medium channel which is communicated with the low-temperature compressor (A); the heat supply device (5) and the second heat supply device (6) are also respectively communicated with the outside through a heated medium channel, the low-temperature evaporator (C) is also communicated with the outside through a low-temperature heat medium channel, and the expander (2) is connected with the compressor (1) and transmits power to form the double-working-medium combined cycle heat pump device.

5. The double-working medium combined cycle heat pump device mainly comprises a compressor, an expander, a second compressor, a throttle valve, a heat supplier, a second heat supplier, an evaporator, a heat regenerator, a high-temperature heat regenerator, a low-temperature compressor, a low-temperature throttle valve and a low-temperature evaporator; the compressor (1) is provided with a circulating working medium channel which is communicated with a high-temperature heat regenerator (13) through a heat supplier (5) and then divided into two paths, wherein the first path is communicated with the heat regenerator (8) through an expander (2), the second path is communicated with a second compressor (3) through a second heat supplier (6), the second compressor (3) is also provided with a circulating working medium channel which is communicated with the heat regenerator (8), then the heat regenerator (8) is communicated with an evaporator (7) through a condensate liquid pipeline through a throttle valve (4), the evaporator (7) is also provided with a circulating working medium channel which is communicated with the heat regenerator (8), and the heat regenerator (8) is also provided with a circulating working medium channel which is communicated with the compressor (1) through the high-temperature heat regenerator (13); the low-temperature compressor (A) is provided with a circulating working medium channel which is communicated with a low-temperature evaporator (C) through an evaporator (7) and a low-temperature throttle valve (B), and the low-temperature evaporator (C) is also provided with a circulating working medium channel which is communicated with the low-temperature compressor (A); the heat supply device (5) and the second heat supply device (6) are also respectively communicated with the outside through a heated medium channel, the low-temperature evaporator (C) is also communicated with the outside through a low-temperature heat medium channel, and the expander (2) is connected with the compressor (1) and transmits power to form the double-working-medium combined cycle heat pump device.

6. The double-working medium combined cycle heat pump device mainly comprises a compressor, an expander, a second compressor, a throttle valve, a heat supplier, a second heat supplier, an evaporator, a heat regenerator, a third heat supplier, a high-temperature heat regenerator, a low-temperature compressor, a low-temperature throttle valve and a low-temperature evaporator; the compressor (1) is provided with a circulating working medium channel which is communicated with a high-temperature heat regenerator (13) through a heat supplier (5) and then divided into two paths, wherein the first path is communicated with the heat regenerator (8) through an expander (2), the second path is communicated with a second compressor (3) through a second heat supplier (6), the second compressor (3) is also provided with a circulating working medium channel which is communicated with the heat regenerator (8) through a third heat supplier (9), then the heat regenerator (8) is further provided with a condensate liquid pipeline which is communicated with an evaporator (7) through a throttle valve (4), the evaporator (7) is further provided with a circulating working medium channel which is communicated with the heat regenerator (8), and the heat regenerator (8) is further provided with a circulating working medium channel which is communicated with the compressor (1) through the high-temperature heat regenerator (13); the low-temperature compressor (A) is provided with a circulating working medium channel which is communicated with a low-temperature evaporator (C) through an evaporator (7) and a low-temperature throttle valve (B), and the low-temperature evaporator (C) is also provided with a circulating working medium channel which is communicated with the low-temperature compressor (A); the heat supply device (5), the second heat supply device (6) and the third heat supply device (9) are respectively communicated with the outside through a heated medium channel, the low-temperature evaporator (C) is also communicated with the outside through a low-temperature heat medium channel, and the expander (2) is connected with the compressor (1) and transmits power to form the dual-working-medium combined cycle heat pump device.

7. The double-working medium combined cycle heat pump device mainly comprises a compressor, an expander, a second compressor, a throttle valve, a heat supplier, a second heat supplier, an evaporator, a heat regenerator, a spray pipe, a second heat regenerator, a high-temperature heat regenerator, a low-temperature compressor, a low-temperature throttle valve and a low-temperature evaporator; the compressor (1) is provided with a circulating working medium channel which is communicated with a high-temperature heat regenerator (13) through a heat supplier (5) and then divided into two paths, wherein the first path is communicated with the expander (2), the second path is communicated with the second compressor (3) through a second heat supplier (6), the second compressor (3) is also provided with a circulating working medium channel which is communicated with the heat regenerator (8) through a second heat regenerator (11) and then divided into two paths, the first path is led out from the middle or the tail end of the heat regenerator (8), passes through a spray pipe (10) and the second heat regenerator (11) and then is communicated with the expander (2) through a middle air inlet port, the second path is led out from the tail end of the heat regenerator (8) and then is communicated with the evaporator (7) through a throttle valve (4), the expander (2) is also provided with the circulating working medium channel which is communicated with the heat regenerator (8), the evaporator (7) is also provided with the circulating working medium channel which is communicated with the heat regenerator (8), and the circulating working medium channel is also communicated with the compressor (1) through the high-temperature heat regenerator (13); the low-temperature compressor (A) is provided with a circulating working medium channel which is communicated with a low-temperature evaporator (C) through an evaporator (7) and a low-temperature throttle valve (B), and the low-temperature evaporator (C) is also provided with a circulating working medium channel which is communicated with the low-temperature compressor (A); the heat supply device (5) and the second heat supply device (6) are also respectively communicated with the outside through a heated medium channel, the low-temperature evaporator (C) is also communicated with the outside through a low-temperature heat medium channel, and the expander (2) is connected with the compressor (1) and transmits power to form the double-working-medium combined cycle heat pump device.

8. The double-working medium combined cycle heat pump device mainly comprises a compressor, an expander, a second compressor, a throttle valve, a heat supplier, a second heat supplier, an evaporator, a heat regenerator, a reheater, a high-temperature heat regenerator, a low-temperature compressor, a low-temperature throttle valve and a low-temperature evaporator; the compressor (1) is provided with a circulating working medium channel which is communicated with a high-temperature heat regenerator (13) through a heat supplier (5) and then divided into two paths, wherein the first path is communicated with the expander (2), the expander (2) is also provided with a reheating circulating working medium channel which is communicated with the expander (2) through a reheater (12), the expander (2) is also provided with a circulating working medium channel which is communicated with the heat regenerator (8), the second path is communicated with the second compressor (3) through a second heat supplier (6), the second compressor (3) is also provided with a circulating working medium channel which is communicated with the heat regenerator (8) through the reheater (12), then the heat regenerator (8) is provided with a condensate pipeline which is communicated with the evaporator (7) through a throttle valve (4), the evaporator (7) is also provided with a circulating working medium channel which is communicated with the heat regenerator (8), and the heat regenerator (8) is also provided with the compressor (1) through the high-temperature heat regenerator (13); the low-temperature compressor (A) is provided with a circulating working medium channel which is communicated with a low-temperature evaporator (C) through an evaporator (7) and a low-temperature throttle valve (B), and the low-temperature evaporator (C) is also provided with a circulating working medium channel which is communicated with the low-temperature compressor (A); the heat supply device (5) and the second heat supply device (6) are also respectively communicated with the outside through a heated medium channel, the low-temperature evaporator (C) is also communicated with the outside through a low-temperature heat medium channel, and the expander (2) is connected with the compressor (1) and transmits power to form the double-working-medium combined cycle heat pump device.

9. The double-working medium combined cycle heat pump device mainly comprises a compressor, an expander, a second compressor, a throttle valve, a heat supplier, a second heat supplier, an evaporator, a heat regenerator, a low-temperature compressor, a low-temperature throttle valve and a low-temperature evaporator; the compressor (1) is provided with a first circulating working medium channel communicated with a second heat supplier (6), the second heat supplier (6) is also provided with a circulating working medium channel communicated with a heat regenerator (8) through an expander (2), the compressor (1) is also provided with a second circulating working medium channel communicated with a second compressor (3) through a heat supplier (5), the second compressor (3) is also provided with a circulating working medium channel communicated with the heat regenerator (8), then the heat regenerator (8) is further provided with a condensate liquid pipeline communicated with an evaporator (7) through a throttle valve (4), the evaporator (7) is also provided with a circulating working medium channel communicated with the heat regenerator (8), and the heat regenerator (8) is also provided with a circulating working medium channel communicated with the compressor (1); the low-temperature compressor (A) is provided with a circulating working medium channel which is communicated with a low-temperature evaporator (C) through an evaporator (7) and a low-temperature throttle valve (B), and the low-temperature evaporator (C) is also provided with a circulating working medium channel which is communicated with the low-temperature compressor (A); the heat supply device (5) and the second heat supply device (6) are also respectively communicated with the outside through a heated medium channel, the low-temperature evaporator (C) is also communicated with the outside through a low-temperature heat medium channel, and the expander (2) is connected with the compressor (1) and transmits power to form the double-working-medium combined cycle heat pump device.

10. The double-working medium combined cycle heat pump device mainly comprises a compressor, an expander, a second compressor, a throttle valve, a heat supplier, a second heat supplier, an evaporator, a heat regenerator, a low-temperature compressor, a low-temperature throttle valve and a low-temperature evaporator; the compressor (1) is provided with a first circulating working medium channel which is communicated with the second compressor (3) through a heat supplier (5), the second compressor (3) is also provided with a circulating working medium channel which is communicated with a heat regenerator (8), then the heat regenerator (8) is communicated with an evaporator (7) through a throttle valve (4), the compressor (1) is also provided with a second circulating working medium channel which is communicated with a second heat supplier (6), the second heat supplier (6) is also provided with a circulating working medium channel which is communicated with the heat regenerator (8) through an expander (2), the evaporator (7) is also provided with a circulating working medium channel which is communicated with the heat regenerator (8), and the heat regenerator (8) is also provided with a circulating working medium channel which is communicated with the compressor (1); the low-temperature compressor (A) is provided with a circulating working medium channel which is communicated with a low-temperature evaporator (C) through an evaporator (7) and a low-temperature throttle valve (B), and the low-temperature evaporator (C) is also provided with a circulating working medium channel which is communicated with the low-temperature compressor (A); the heat supply device (5) and the second heat supply device (6) are also respectively communicated with the outside through a heated medium channel, the low-temperature evaporator (C) is also communicated with the outside through a low-temperature heat medium channel, and the expander (2) is connected with the compressor (1) and transmits power to form the double-working-medium combined cycle heat pump device.

11. The double-working medium combined cycle heat pump device mainly comprises a compressor, an expander, a second compressor, a throttle valve, a heat supplier, a second heat supplier, an evaporator, a heat regenerator, a newly-added compressor, a low-temperature throttle valve and a low-temperature evaporator; the compressor (1) is provided with a circulating working medium channel which is communicated with the second compressor (3) through the heat supplier (5), the second compressor (3) is also provided with a circulating working medium channel which is communicated with the heat regenerator (8), then the heat regenerator (8) is communicated with the evaporator (7) through a condensate liquid pipeline by a throttle valve (4), the evaporator (7) is also provided with a circulating working medium channel which is communicated with the heat regenerator (8), the heat regenerator (8) is also provided with a circulating working medium channel which is respectively communicated with the compressor (1) and a newly added compressor (D), the newly added compressor (D) is also provided with a circulating working medium channel which is communicated with the second heat supplier (6), and the second heat supplier (6) is also provided with a circulating working medium channel which is communicated with the heat regenerator (8) through the expander (2); the low-temperature compressor (A) is provided with a circulating working medium channel which is communicated with a low-temperature evaporator (C) through an evaporator (7) and a low-temperature throttle valve (B), and the low-temperature evaporator (C) is also provided with a circulating working medium channel which is communicated with the low-temperature compressor (A); the heat supply device (5) and the second heat supply device (6) are also respectively communicated with the outside through a heated medium channel, the low-temperature evaporator (C) is also communicated with the outside through a low-temperature heat medium channel, and the expander (2) is connected with the compressor (1) and transmits power to form the double-working-medium combined cycle heat pump device.

12. A dual working medium combined cycle heat pump device is characterized in that a third heat supply device is added in any one of the dual working medium combined cycle heat pump devices of claims 9-11, a second compressor (3) is communicated with a heat regenerator (8) through a working medium circulating channel, the second compressor (3) is communicated with the heat regenerator (8) through the third heat supply device (9), and the third heat supply device (9) is also communicated with the outside through a heated medium channel to form the dual working medium combined cycle heat pump device.

13. A double-working medium combined cycle heat pump device is characterized in that in any one of the double-working medium combined cycle heat pump devices of claims 9-11, a spray pipe and a second heat regenerator are added, a second compressor (3) is communicated with the heat regenerator (8) through a circulating working medium channel, the second compressor (3) is communicated with the heat regenerator (8) through the second heat regenerator (11), the heat regenerator (8) is additionally provided with the circulating working medium channel from the middle or the tail end, the circulating working medium channel is communicated with an expander (2) through a middle air inlet port after passing through the spray pipe (10) and the second heat regenerator (11), and the double-working medium combined cycle heat pump device is formed.

14. A double-working medium combined cycle heat pump device is characterized in that a reheater is added in any one of the double-working medium combined cycle heat pump devices of claims 9 to 11, a second compressor (3) with a circulation working medium channel is communicated with a reheater (8) and adjusted to be communicated with the reheater (8) through the reheater (12), a second heat supply device (6) with a circulation working medium channel is communicated with the reheater (8) through an expander (2) and adjusted to be communicated with the reheater (8) through the second heat supply device (6) with a circulation working medium channel communicated with the expander (2), the expander (2) with a circulation working medium channel communicated with the expander (2) through the reheater (12) and the expander (2) with a circulation working medium channel communicated with the reheater (8), and the double-working medium combined cycle heat pump device is formed.

15. A dual-working medium combined cycle heat pump device is characterized in that in any one of the dual-working medium combined cycle heat pump devices of claims 1-14, a throttle valve is eliminated, a turbine is added, a condenser pipe of a regenerator (8) is communicated with an evaporator (7) through a throttle valve (4), the condenser pipe of the regenerator (8) is communicated with the evaporator (7) through the turbine (14), and the turbine (14) is connected with a compressor (1) and transmits power, so that the dual-working medium combined cycle heat pump device is formed.

16. A dual-working medium combined cycle heat pump device is characterized in that a new heat regenerator is added in any one of the dual-working medium combined cycle heat pump devices of claims 1 to 14, a low-temperature compressor (A) with a cycle working medium channel is communicated with a low-temperature evaporator (C) through an evaporator (7) and a low-temperature throttle valve (B) and adjusted to be that the low-temperature compressor (A) with the cycle working medium channel is communicated with the low-temperature evaporator (C) through the evaporator (7), the new heat regenerator (E) and the low-temperature throttle valve (B), and the low-temperature evaporator (C) with the cycle working medium channel is communicated with the low-temperature compressor (A) and adjusted to be that the low-temperature evaporator (C) with the cycle working medium channel is communicated with the low-temperature compressor (A) through the new heat regenerator (E), so as to form the dual-working medium combined cycle heat pump device.

17. A dual-working medium combined cycle heat pump device is characterized in that in any one of the dual-working medium combined cycle heat pump devices in claims 1-15, a low-temperature throttle valve is omitted, a turbine is added, a low-temperature compressor (A) with a circulating working medium channel is communicated with a low-temperature evaporator (C) through an evaporator (7) and a low-temperature throttle valve (B) to adjust that the low-temperature compressor (A) with the circulating working medium channel is communicated with the low-temperature evaporator (C) through the evaporator (7) and a new turbine (F), and the new turbine (F) is connected with the low-temperature compressor (A) and transmits power to form the dual-working medium combined cycle heat pump device.

18. The double working medium combined cycle heat pump device is characterized in that a newly-added double-energy compressor (G) is added to replace a low-temperature compressor (A), a newly-added spray pipe (H) is added to replace a low-temperature throttle valve (B) in any one of the double working medium combined cycle heat pump devices of claims 1 to 16, and the double working medium combined cycle heat pump device is formed.

The technical field is as follows:

the invention belongs to the technical field of refrigeration and heat pumps.

Background art:

cold demand, heat demand and power demand, which are common in human life and production; the conversion of mechanical energy into heat energy is an important way to realize refrigeration and efficient heating. In general, the temperature of the cooling medium changes during cooling, and the temperature of the medium to be heated also changes during heating; when the mechanical energy is used for heating, the heated medium has the dual characteristics of temperature change and high temperature at the same time in many times, so that the problems of unreasonable performance index, low heating parameter, high compression ratio, large working pressure and the like exist when refrigeration or heating is realized by adopting a single thermodynamic cycle.

When heat release mainly depends on a condensation process, the loss of temperature difference between a working medium and a heated medium is large, and the loss of a pressure reduction process of condensate is large or the utilization cost is high; when the supercritical working condition is adopted, the compression ratio is higher, so that the manufacturing cost of the compressor is high, the safety is reduced, and the like; the low-temperature thermal load is not ideal, and the performance index needs to be improved. The gas compression type heat pump device based on the single reverse Brayton cycle requires lower compression ratio, which limits the improvement of heat supply parameters; the low-temperature process is temperature-changing, so that the low-temperature link usually has large temperature difference loss during refrigeration or heating, and the performance index is unreasonable. In addition, the adaptability of the heat pump device based on a single working medium sometimes has certain limitations.

The advantages that the low-temperature heat load is absorbed in the evaporation process of the steam compression type heat pump and the high-temperature heat load is provided in the temperature change process of the gas compression type heat pump are kept, the sensible heat of the condensate is fully utilized, and the side effect of the pressure reduction of the condensate is eliminated, namely the heat pump device has reasonable performance index and wide application occasions; the invention provides a double-working-medium combined cycle heat pump device based on the principle of simply, actively and efficiently refrigerating or heating and the principle of coping with different refrigerating demands/heating demands as much as possible.

The invention content is as follows:

the invention mainly aims to provide a double-working-medium combined cycle heat pump device, and the specific contents of the invention are explained in sections as follows:

1. the double-working medium combined cycle heat pump device mainly comprises a compressor, an expander, a second compressor, a throttle valve, a heat supplier, a second heat supplier, an evaporator, a heat regenerator, a low-temperature compressor, a low-temperature throttle valve and a low-temperature evaporator; the compressor is divided into two paths after a circulating working medium channel is communicated with a heat supplier, wherein the first path is communicated with a heat regenerator through an expander, the second path is communicated with a second compressor through a second heat supplier, the second compressor is also provided with a circulating working medium channel which is communicated with the heat regenerator, then the heat regenerator is further provided with a condensate liquid pipeline which is communicated with an evaporator through a throttle valve, the evaporator is also provided with a circulating working medium channel which is communicated with the heat regenerator, and the heat regenerator is also provided with a circulating working medium channel which is communicated with the compressor; the low-temperature compressor is provided with a circulating working medium channel which is communicated with the low-temperature evaporator through the evaporator and the low-temperature throttle valve, and the low-temperature evaporator is also provided with a circulating working medium channel which is communicated with the low-temperature compressor; the heat supply device and the second heat supply device are also respectively communicated with the outside through heated medium channels, the low-temperature evaporator is also communicated with the outside through a low-temperature heat medium channel, and the expander is connected with the compressor and transmits power to form the double-working-medium combined cycle heat pump device.

2. The double-working medium combined cycle heat pump device mainly comprises a compressor, an expander, a second compressor, a throttle valve, a heat supplier, a second heat supplier, an evaporator, a heat regenerator, a third heat supplier, a low-temperature compressor, a low-temperature throttle valve and a low-temperature evaporator; the compressor is provided with a circulating working medium channel which is communicated with a heat supplier and then divided into two paths, wherein the first path is communicated with a heat regenerator through an expander, the second path is communicated with a second compressor through a second heat supplier, the second compressor is also provided with a circulating working medium channel which is communicated with the heat regenerator through a third heat supplier, then the heat regenerator is further provided with a condensate liquid pipeline which is communicated with an evaporator through a throttle valve, the evaporator is also provided with a circulating working medium channel which is communicated with the heat regenerator, and the heat regenerator is also provided with a circulating working medium channel which is communicated with the compressor; the low-temperature compressor is provided with a circulating working medium channel which is communicated with the low-temperature evaporator through the evaporator and the low-temperature throttle valve, and the low-temperature evaporator is also provided with a circulating working medium channel which is communicated with the low-temperature compressor; the heat supply device, the second heat supply device and the third heat supply device are respectively communicated with the outside through heated medium channels, the low-temperature evaporator is also communicated with the outside through a low-temperature heat medium channel, and the expander is connected with the compressor and transmits power to form the double-working-medium combined cycle heat pump device.

3. The double-working medium combined cycle heat pump device mainly comprises a compressor, an expander, a second compressor, a throttle valve, a heat supplier, a second heat supplier, an evaporator, a heat regenerator, a spray pipe, a second heat regenerator, a low-temperature compressor, a low-temperature throttle valve and a low-temperature evaporator; the compressor is provided with a circulating working medium channel which is communicated with a heat supply device and then divided into two paths, wherein the first path is communicated with the expander, the second path is communicated with the second compressor through a second heat supply device, the circulating working medium channel is also communicated with the heat return device through a second heat return device and then divided into two paths, the first path is led out from the middle or the tail end of the heat return device, is communicated with the expander through a spray pipe and the second heat return device, and is communicated with the evaporator through a throttle valve after being led out from the tail end of the heat return device, the expander is also communicated with the heat return device through the circulating working medium channel, the evaporator is also communicated with the heat return device through the circulating working medium channel, and the heat return device is also communicated with the compressor through the circulating working medium channel; the low-temperature compressor is provided with a circulating working medium channel which is communicated with the low-temperature evaporator through the evaporator and the low-temperature throttle valve, and the low-temperature evaporator is also provided with a circulating working medium channel which is communicated with the low-temperature compressor; the heat supply device and the second heat supply device are also respectively communicated with the outside through heated medium channels, the low-temperature evaporator is also communicated with the outside through a low-temperature heat medium channel, and the expander is connected with the compressor and transmits power to form the double-working-medium combined cycle heat pump device.

4. The double-working medium combined cycle heat pump device mainly comprises a compressor, an expander, a second compressor, a throttle valve, a heat supplier, a second heat supplier, an evaporator, a heat regenerator, a reheater, a low-temperature compressor, a low-temperature throttle valve and a low-temperature evaporator; the compressor is provided with a circulating working medium channel which is communicated with a heat supplier and then divided into two paths, wherein the first path is communicated with the expander, the expander and a reheating circulating working medium channel are communicated with the expander through a reheater, the expander and a circulating working medium channel are communicated with a heat regenerator, the second path is communicated with the second compressor through a second heat supplier, the second compressor and the circulating working medium channel are communicated with the heat regenerator through the reheater, then the heat regenerator is further provided with a condensate pipeline which is communicated with the evaporator through a throttle valve, the evaporator and the circulating working medium channel are communicated with the heat regenerator, and the heat regenerator and the circulating working medium channel are communicated with the compressor; the low-temperature compressor is provided with a circulating working medium channel which is communicated with the low-temperature evaporator through the evaporator and the low-temperature throttle valve, and the low-temperature evaporator is also provided with a circulating working medium channel which is communicated with the low-temperature compressor; the heat supply device and the second heat supply device are also respectively communicated with the outside through heated medium channels, the low-temperature evaporator is also communicated with the outside through a low-temperature heat medium channel, and the expander is connected with the compressor and transmits power to form the double-working-medium combined cycle heat pump device.

5. The double-working medium combined cycle heat pump device mainly comprises a compressor, an expander, a second compressor, a throttle valve, a heat supplier, a second heat supplier, an evaporator, a heat regenerator, a high-temperature heat regenerator, a low-temperature compressor, a low-temperature throttle valve and a low-temperature evaporator; the compressor is provided with a circulating working medium channel which is communicated with a high-temperature heat regenerator through a heat supplier and then divided into two paths, wherein the first path is communicated with the heat regenerator through an expander, the second path is communicated with the second compressor through a second heat supplier, the second compressor is also provided with a circulating working medium channel which is communicated with the heat regenerator, then the heat regenerator is further provided with a condensate liquid pipeline which is communicated with an evaporator through a throttle valve, the evaporator is also provided with a circulating working medium channel which is communicated with the heat regenerator, and the heat regenerator is also provided with a circulating working medium channel which is communicated with the compressor through the high-temperature heat regenerator; the low-temperature compressor is provided with a circulating working medium channel which is communicated with the low-temperature evaporator through the evaporator and the low-temperature throttle valve, and the low-temperature evaporator is also provided with a circulating working medium channel which is communicated with the low-temperature compressor; the heat supply device and the second heat supply device are also respectively communicated with the outside through heated medium channels, the low-temperature evaporator is also communicated with the outside through a low-temperature heat medium channel, and the expander is connected with the compressor and transmits power to form the double-working-medium combined cycle heat pump device.

6. The double-working medium combined cycle heat pump device mainly comprises a compressor, an expander, a second compressor, a throttle valve, a heat supplier, a second heat supplier, an evaporator, a heat regenerator, a third heat supplier, a high-temperature heat regenerator, a low-temperature compressor, a low-temperature throttle valve and a low-temperature evaporator; the compressor is provided with a circulating working medium channel which is communicated with a high-temperature heat regenerator through a heat supplier and then divided into two paths, wherein the first path is communicated with the heat regenerator through an expander, the second path is communicated with the second compressor through a second heat supplier, the second compressor is also provided with a circulating working medium channel which is communicated with the heat regenerator through a third heat supplier, then the heat regenerator is provided with a condensate liquid pipeline which is communicated with an evaporator through a throttle valve, the evaporator is also provided with a circulating working medium channel which is communicated with the heat regenerator, and the heat regenerator is also provided with a circulating working medium channel which is communicated with the compressor through the high-temperature heat regenerator; the low-temperature compressor is provided with a circulating working medium channel which is communicated with the low-temperature evaporator through the evaporator and the low-temperature throttle valve, and the low-temperature evaporator is also provided with a circulating working medium channel which is communicated with the low-temperature compressor; the heat supply device, the second heat supply device and the third heat supply device are respectively communicated with the outside through heated medium channels, the low-temperature evaporator is also communicated with the outside through a low-temperature heat medium channel, and the expander is connected with the compressor and transmits power to form the double-working-medium combined cycle heat pump device.

7. The double-working medium combined cycle heat pump device mainly comprises a compressor, an expander, a second compressor, a throttle valve, a heat supplier, a second heat supplier, an evaporator, a heat regenerator, a spray pipe, a second heat regenerator, a high-temperature heat regenerator, a low-temperature compressor, a low-temperature throttle valve and a low-temperature evaporator; the compressor is provided with a circulating working medium channel which is communicated with a high-temperature heat regenerator through a heat supply device and then divided into two paths, wherein the first path is communicated with the expander, the second path is communicated with the second compressor through a second heat regenerator, the circulating working medium channel of the second compressor is further communicated with the heat regenerator through the second heat regenerator and then divided into two paths, the first path is led out from the middle or tail end of the heat regenerator and is communicated with the expander through a spray pipe and the second heat regenerator, the second path is led out from the tail end of the heat regenerator and is communicated with the evaporator through a throttle valve, the expander is also provided with a circulating working medium channel which is communicated with the heat regenerator, the evaporator is also provided with a circulating working medium channel which is communicated with the heat regenerator, and the heat regenerator is also provided with a circulating working medium channel which is communicated with the compressor through the high-temperature heat regenerator; the low-temperature compressor is provided with a circulating working medium channel which is communicated with the low-temperature evaporator through the evaporator and the low-temperature throttle valve, and the low-temperature evaporator is also provided with a circulating working medium channel which is communicated with the low-temperature compressor; the heat supply device and the second heat supply device are also respectively communicated with the outside through heated medium channels, the low-temperature evaporator is also communicated with the outside through a low-temperature heat medium channel, and the expander is connected with the compressor and transmits power to form the double-working-medium combined cycle heat pump device.

8. The double-working medium combined cycle heat pump device mainly comprises a compressor, an expander, a second compressor, a throttle valve, a heat supplier, a second heat supplier, an evaporator, a heat regenerator, a reheater, a high-temperature heat regenerator, a low-temperature compressor, a low-temperature throttle valve and a low-temperature evaporator; the compressor is provided with a circulating working medium channel which is communicated with a high-temperature heat regenerator through a heat supplier and then divided into two paths, wherein the first path is communicated with the expander, the expander and a reheating circulating working medium channel are communicated with the expander through a reheater, the expander and the circulating working medium channel are communicated with the heat regenerator, the second path is communicated with the second compressor through a second heat supplier, the second compressor and the circulating working medium channel are communicated with the heat regenerator through the reheater, then the condenser pipeline of the heat regenerator is communicated with the evaporator through a throttle valve, the evaporator and the circulating working medium channel are communicated with the heat regenerator, and the heat regenerator and the circulating working medium channel are communicated with the compressor through the high-temperature heat regenerator; the low-temperature compressor is provided with a circulating working medium channel which is communicated with the low-temperature evaporator through the evaporator and the low-temperature throttle valve, and the low-temperature evaporator is also provided with a circulating working medium channel which is communicated with the low-temperature compressor; the heat supply device and the second heat supply device are also respectively communicated with the outside through heated medium channels, the low-temperature evaporator is also communicated with the outside through a low-temperature heat medium channel, and the expander is connected with the compressor and transmits power to form the double-working-medium combined cycle heat pump device.

9. The double-working medium combined cycle heat pump device mainly comprises a compressor, an expander, a second compressor, a throttle valve, a heat supplier, a second heat supplier, an evaporator, a heat regenerator, a low-temperature compressor, a low-temperature throttle valve and a low-temperature evaporator; the compressor is provided with a first circulating working medium channel communicated with a second heat supplier, the second heat supplier is also provided with a circulating working medium channel communicated with a heat regenerator through an expander, the compressor is also provided with a second circulating working medium channel communicated with the second compressor through a heat supplier, the second compressor is also provided with a circulating working medium channel communicated with the heat regenerator, then the heat regenerator is further provided with a condensate liquid pipeline communicated with an evaporator through a throttle valve, the evaporator is also provided with a circulating working medium channel communicated with the heat regenerator, and the heat regenerator is also provided with a circulating working medium channel communicated with the compressor; the low-temperature compressor is provided with a circulating working medium channel which is communicated with the low-temperature evaporator through the evaporator and the low-temperature throttle valve, and the low-temperature evaporator is also provided with a circulating working medium channel which is communicated with the low-temperature compressor; the heat supply device and the second heat supply device are also respectively communicated with the outside through heated medium channels, the low-temperature evaporator is also communicated with the outside through a low-temperature heat medium channel, and the expander is connected with the compressor and transmits power to form the double-working-medium combined cycle heat pump device.

10. The double-working medium combined cycle heat pump device mainly comprises a compressor, an expander, a second compressor, a throttle valve, a heat supplier, a second heat supplier, an evaporator, a heat regenerator, a low-temperature compressor, a low-temperature throttle valve and a low-temperature evaporator; the compressor is provided with a first circulating working medium channel which is communicated with a second compressor through a heat supplier, the second compressor is also provided with a circulating working medium channel which is communicated with a heat regenerator, then the heat regenerator is further provided with a condensate liquid pipeline which is communicated with an evaporator through a throttle valve, the compressor is also provided with a second circulating working medium channel which is communicated with the second heat supplier, the second heat supplier is also provided with a circulating working medium channel which is communicated with the heat regenerator through an expander, the evaporator is also provided with a circulating working medium channel which is communicated with the heat regenerator, and the heat regenerator is also provided with a circulating working medium channel which is communicated with the compressor; the low-temperature compressor is provided with a circulating working medium channel which is communicated with the low-temperature evaporator through the evaporator and the low-temperature throttle valve, and the low-temperature evaporator is also provided with a circulating working medium channel which is communicated with the low-temperature compressor; the heat supply device and the second heat supply device are also respectively communicated with the outside through heated medium channels, the low-temperature evaporator is also communicated with the outside through a low-temperature heat medium channel, and the expander is connected with the compressor and transmits power to form the double-working-medium combined cycle heat pump device.

11. The double-working medium combined cycle heat pump device mainly comprises a compressor, an expander, a second compressor, a throttle valve, a heat supplier, a second heat supplier, an evaporator, a heat regenerator, a newly-added compressor, a low-temperature throttle valve and a low-temperature evaporator; the compressor is provided with a circulating working medium channel which is communicated with a second compressor through a heat supplier, the second compressor is also provided with a circulating working medium channel which is communicated with a heat regenerator, then the heat regenerator is further provided with a condensate liquid pipeline which is communicated with an evaporator through a throttle valve, the evaporator is also provided with a circulating working medium channel which is communicated with the heat regenerator, the heat regenerator is also provided with a circulating working medium channel which is respectively communicated with the compressor and a newly-added compressor, the newly-added compressor is also provided with a circulating working medium channel which is communicated with the second heat supplier, and the second heat supplier is also provided with a circulating working medium channel which is communicated with the heat regenerator through an expander; the low-temperature compressor is provided with a circulating working medium channel which is communicated with the low-temperature evaporator through the evaporator and the low-temperature throttle valve, and the low-temperature evaporator is also provided with a circulating working medium channel which is communicated with the low-temperature compressor; the heat supply device and the second heat supply device are also respectively communicated with the outside through heated medium channels, the low-temperature evaporator is also communicated with the outside through a low-temperature heat medium channel, and the expander is connected with the compressor and transmits power to form the double-working-medium combined cycle heat pump device.

12. A dual working medium combined cycle heat pump device is characterized in that a third heat supply device is added in any one of the dual working medium combined cycle heat pump devices 9-11, a second compressor is provided with a circulating working medium channel which is communicated with a heat regenerator, the second compressor is provided with a circulating working medium channel which is communicated with the heat regenerator through the third heat supply device, and the third heat supply device is also provided with a heated medium channel which is communicated with the outside, so that the dual working medium combined cycle heat pump device is formed.

13. A dual-working medium combined cycle heat pump device is characterized in that a spray pipe and a second heat regenerator are added in any one of the dual-working medium combined cycle heat pump devices 9-11, a second compressor is communicated with the heat regenerator and adjusted to be communicated with the heat regenerator through a circulating working medium channel of the second compressor, the second compressor is communicated with the heat regenerator through the second heat regenerator, the heat regenerator is additionally provided with the circulating working medium channel from the middle or the tail end, and the circulating working medium channel is communicated with an expander through a middle air inlet port after passing through the spray pipe and the second heat regenerator, so that the dual-working medium combined cycle heat pump device is formed.

14. A dual-working medium combined cycle heat pump device is characterized in that a reheater is added in any one of the dual-working medium combined cycle heat pump devices 9-11, a second compressor with a cycle working medium channel is communicated with the reheater and adjusted to be communicated with the reheater, the second compressor with the cycle working medium channel is communicated with the reheater, a second heat supply with the cycle working medium channel is communicated with the reheater and adjusted to be communicated with the reheater through an expander, the expander with the cycle working medium channel is communicated with the expander, and the expander with the cycle working medium channel is communicated with the expander through the reheater and the reheater, so that the dual-working medium combined cycle heat pump device is formed.

15. A dual working medium combined cycle heat pump device is characterized in that in any one of the dual working medium combined cycle heat pump devices 1-14, a throttle valve is omitted, a turbine is added, a condensate pipeline of a heat regenerator is communicated with an evaporator through the throttle valve, the condensate pipeline of the heat regenerator is adjusted to be communicated with the evaporator through the turbine, and the turbine is connected with a compressor and transmits power to form the dual working medium combined cycle heat pump device.

16. A dual-working medium combined cycle heat pump device is characterized in that a new heat regenerator is added in any one of the dual-working medium combined cycle heat pump devices 1-14, a low-temperature compressor is communicated with a low-temperature evaporator through an evaporator and a low-temperature throttle valve and adjusted to be communicated with the low-temperature evaporator through the evaporator, the new heat regenerator and the low-temperature throttle valve, the low-temperature compressor is communicated with the low-temperature evaporator through a circulating working medium channel, and the low-temperature evaporator is communicated with the low-temperature compressor through the circulating working medium channel and adjusted to be communicated with the low-temperature evaporator through the new heat regenerator, so that the dual-working medium combined cycle heat pump device is formed.

17. A dual-working medium combined cycle heat pump device is characterized in that in any one of the dual-working medium combined cycle heat pump devices 1-15, a low-temperature throttle valve is omitted, a turbine is added, a circulating working medium channel of a low-temperature compressor is communicated with a low-temperature evaporator through an evaporator and the low-temperature throttle valve, the low-temperature compressor is adjusted to be communicated with the low-temperature evaporator through the evaporator and the added turbine, and the added turbine is connected with the low-temperature compressor and transmits power to form the dual-working medium combined cycle heat pump device.

18. A dual working medium combined cycle heat pump device is characterized in that in any one of the dual working medium combined cycle heat pump devices 1-16, a newly-added dual-energy compressor is added to replace a low-temperature compressor, a newly-added spray pipe is added to replace a low-temperature throttle valve, and the dual working medium combined cycle heat pump device is formed.

Description of the drawings:

fig. 1 is a schematic diagram of a 1 st principal thermodynamic system of a dual-working-medium combined-cycle heat pump apparatus according to the present invention.

Fig. 2 is a schematic thermodynamic system diagram of a 2 nd principle of a dual-working-medium combined-cycle heat pump apparatus provided in accordance with the present invention.

Fig. 3 is a 3 rd principle thermodynamic system diagram of a dual-working-medium combined cycle heat pump device provided in accordance with the present invention.

Fig. 4 is a diagram of a 4 th principle thermodynamic system of a dual-working-medium combined-cycle heat pump apparatus provided in accordance with the present invention.

Fig. 5 is a diagram of a 5 th principle thermodynamic system of a dual-working-medium combined-cycle heat pump apparatus provided in accordance with the present invention.

Fig. 6 is a diagram of a 6 th principle thermodynamic system of a dual-working-medium combined-cycle heat pump apparatus provided in accordance with the present invention.

Fig. 7 is a diagram of a 7 th principle thermodynamic system of a dual-working-medium combined-cycle heat pump apparatus provided in accordance with the present invention.

Fig. 8 is a diagram of an 8 th principle thermodynamic system of a dual-working-medium combined-cycle heat pump apparatus provided in accordance with the present invention.

Fig. 9 is a diagram of a 9 th principal thermodynamic system of a dual-working-medium combined-cycle heat pump apparatus provided in accordance with the present invention.

Fig. 10 is a diagram of a 10 th principal thermodynamic system of a dual-working-medium combined-cycle heat pump apparatus provided in accordance with the present invention.

Fig. 11 is a diagram of an 11 th principle thermodynamic system of a dual-working-medium combined-cycle heat pump apparatus provided in accordance with the present invention.

Fig. 12 is a diagram of a 12 th principal thermodynamic system of a dual-working-medium combined cycle heat pump apparatus provided in accordance with the present invention.

Fig. 13 is a 13 th principal thermodynamic system diagram of a dual-working-medium combined cycle heat pump apparatus provided in accordance with the present invention.

Fig. 14 is a diagram of a 14 th principle thermodynamic system of a dual-working-medium combined-cycle heat pump apparatus provided in accordance with the present invention.

Fig. 15 is a diagram of a 15 th principal thermodynamic system of a dual-working-medium combined-cycle heat pump apparatus provided in accordance with the present invention.

In the figure, 1-compressor, 2-expander, 3-second compressor, 4-throttle valve, 5-heater, 6-second heater, 7-evaporator, 8-regenerator, 9-third heater, 10-spray pipe, 11-second regenerator, 12-reheater, 13-high temperature regenerator, 14-turbine; a-a low-temperature compressor, B-a low-temperature throttle valve, C-a low-temperature evaporator, D-a newly-increased compressor, E-a newly-increased heat regenerator, F-a newly-increased turbine, G-a newly-increased dual-energy compressor and H-a newly-increased spray pipe.

The specific implementation mode is as follows:

it is to be noted that, in the description of the structure and the flow, the repetition is not necessary; obvious flow is not described. The invention is described in detail below with reference to the figures and examples.

The dual-working-medium combined-cycle heat pump apparatus shown in fig. 1 is realized by:

(1) structurally, the system mainly comprises a compressor, an expander, a second compressor, a throttle valve, a heat supplier, a second heat supplier, an evaporator, a heat regenerator, a low-temperature compressor, a low-temperature throttle valve and a low-temperature evaporator; the compressor 1 is divided into two paths after a circulating working medium channel is communicated with a heat supplier 5, wherein the first path is communicated with a heat regenerator 8 through an expander 2, the second path is communicated with a second compressor 3 through a second heat supplier 6, the heat regenerator 8 is communicated with a second compressor 3 through the circulating working medium channel, a condensate liquid pipeline is communicated with an evaporator 7 through a throttle valve 4, the evaporator 7 is communicated with the heat regenerator 8 through the circulating working medium channel, and the heat regenerator 8 is communicated with the compressor 1 through the circulating working medium channel; the low-temperature compressor A is provided with a circulating working medium channel which is communicated with a low-temperature evaporator C through an evaporator 7 and a low-temperature throttle valve B, and the low-temperature evaporator C is also provided with a circulating working medium channel which is communicated with the low-temperature compressor A; the heat supplier 5 and the second heat supplier 6 are also respectively communicated with the outside through heated medium channels, the low-temperature evaporator C is also communicated with the outside through a low-temperature heat medium channel, and the expander 2 is connected with the compressor 1 and transmits power.

(2) In the process, the circulating working medium discharged by the expander 2 and the evaporator 7 enters the heat regenerator 8 to absorb heat and raise temperature, and then enters the compressor 1 to raise the pressure and raise the temperature; the circulating working medium discharged by the compressor 1 flows through the heat supplier 5 and releases heat, and then is divided into two paths, namely a first path flows through the expander 2 and enters the heat regenerator 8 after being decompressed and done with work, a second path flows through the second heat supplier 6 and releases heat, flows through the second compressor 3 and is boosted and heated, flows through the heat regenerator 8 and releases heat and is condensed, flows through the throttle valve 4 and enters the evaporator 7 after being throttled and decompressed; the circulating working medium entering the evaporator 7 absorbs heat and is vaporized, and then enters the heat regenerator 8; circulating working medium discharged by the low-temperature compressor A releases heat and is condensed through the evaporator 7, throttled and depressurized through the low-temperature throttle valve B, absorbed and evaporated through the low-temperature evaporator C, and then enters the low-temperature compressor A to be boosted and heated; the heated medium obtains high-temperature heat load through the heat supplier 5 and the second heat supplier 6, the low-temperature heat load is provided by the low-temperature heat medium through the low-temperature evaporator C, the power is provided for the compressor 1, the second compressor 3 and the low-temperature compressor A by the outside and the expander 2 together, and the dual-working-medium combined cycle heat pump device is formed.

The dual-working-medium combined-cycle heat pump apparatus shown in fig. 2 is realized by:

(1) structurally, the system mainly comprises a compressor, an expander, a second compressor, a throttle valve, a heat supplier, a second heat supplier, an evaporator, a heat regenerator, a third heat supplier, a low-temperature compressor, a low-temperature throttle valve and a low-temperature evaporator; the compressor 1 is divided into two paths after a circulating working medium channel is communicated with a heat supplier 5, wherein the first path is communicated with a heat regenerator 8 through an expander 2, the second path is communicated with a second compressor 3 through a second heat supplier 6, the second compressor 3 is also communicated with the heat regenerator 8 through a third heat supplier 9, then a condensate liquid pipeline of the heat regenerator 8 is communicated with an evaporator 7 through a throttle valve 4, the evaporator 7 is also communicated with the heat regenerator 8 through the circulating working medium channel, and the heat regenerator 8 is also communicated with the compressor 1 through the circulating working medium channel; the low-temperature compressor A is provided with a circulating working medium channel which is communicated with a low-temperature evaporator C through an evaporator 7 and a low-temperature throttle valve B, and the low-temperature evaporator C is also provided with a circulating working medium channel which is communicated with the low-temperature compressor A; the heat supply device 5, the second heat supply device 6 and the third heat supply device 9 are also respectively communicated with the outside through heated medium channels, the low-temperature evaporator C is also communicated with the outside through a low-temperature heat medium channel, and the expander 2 is connected with the compressor 1 and transmits power.

(2) In the process, the circulating working medium discharged by the expander 2 and the evaporator 7 enters the heat regenerator 8 to absorb heat and raise temperature, and then enters the compressor 1 to raise the pressure and raise the temperature; the circulating working medium discharged by the compressor 1 flows through the heat supplier 5 and releases heat, and then is divided into two paths, namely a first path flows through the expander 2 and enters the heat regenerator 8 after reducing pressure and doing work, a second path flows through the second heat supplier 6 and releases heat, flows through the second compressor 3 and raises pressure and temperature, flows through the third heat supplier 9 and releases heat, flows through the heat regenerator 8 to release heat and condense, flows through the throttle valve 4 and enters the evaporator 7 after throttling and reducing pressure; the circulating working medium entering the evaporator 7 absorbs heat and is vaporized, and then enters the heat regenerator 8; circulating working medium discharged by the low-temperature compressor A releases heat and is condensed through the evaporator 7, throttled and depressurized through the low-temperature throttle valve B, absorbed and evaporated through the low-temperature evaporator C, and then enters the low-temperature compressor A to be boosted and heated; the heated medium obtains high-temperature heat load through the heat supplier 5, the second heat supplier 6 and the third heat supplier 9, the low-temperature heat load is provided by the low-temperature evaporator C, the power is provided for the compressor 1, the second compressor 3 and the low-temperature compressor A by the exterior and the expander 2 together, and the dual-working-medium combined cycle heat pump device is formed.

The dual-working-medium combined-cycle heat pump apparatus shown in fig. 3 is realized by:

(1) structurally, the system mainly comprises a compressor, an expander, a second compressor, a throttle valve, a heat supplier, a second heat supplier, an evaporator, a heat regenerator, a spray pipe, a second heat regenerator, a low-temperature compressor, a low-temperature throttle valve and a low-temperature evaporator; the compressor 1 is provided with a circulating working medium channel which is communicated with a heat supplier 5 and then divided into two paths, wherein the first path is communicated with the expander 2, the second path is communicated with the second compressor 3 through a second heat supplier 6, the second compressor 3 is also provided with a circulating working medium channel which is communicated with a heat regenerator 8 through a second heat regenerator 11 and then divided into two paths, the first path is led out from the middle or the tail end of the heat regenerator 8, is communicated with the expander 2 through a spray pipe 10 and a second heat regenerator 11 and then is communicated with the expander 2 through a middle air inlet port, the second path is led out from the tail end of the heat regenerator 8 and is communicated with the evaporator 7 through a throttle valve 4, the expander 2 is also provided with a circulating working medium channel which is communicated with the heat regenerator 8, the evaporator 7 is also provided with a circulating working medium channel which is communicated with the heat regenerator 8, and the heat regenerator 8 is also provided with the compressor 1; the low-temperature compressor A is provided with a circulating working medium channel which is communicated with a low-temperature evaporator C through an evaporator 7 and a low-temperature throttle valve B, and the low-temperature evaporator C is also provided with a circulating working medium channel which is communicated with the low-temperature compressor A; the heat supplier 5 and the second heat supplier 6 are also respectively communicated with the outside through heated medium channels, the low-temperature evaporator C is also communicated with the outside through a low-temperature heat medium channel, and the expander 2 is connected with the compressor 1 and transmits power.

(2) In the process, the circulating working medium discharged by the expander 2 and the evaporator 7 enters the heat regenerator 8 to absorb heat and raise temperature, and then enters the compressor 1 to raise the pressure and raise the temperature; the circulating working medium discharged by the compressor 1 flows through the heat supply device 5 and releases heat, and then is divided into two paths, wherein the first path flows through the expansion machine 2 to perform pressure reduction and work and then enters the heat regenerator 8, the second path flows through the second heat supply device 6 to perform heat release, flows through the second compressor 3 to perform pressure increase and temperature increase, flows through the second heat regenerator 11 to perform heat release, then enters the heat regenerator 8 to perform heat release and partial condensation or complete condensation and then is divided into two paths, the first path flows through the spray pipe 10 to perform pressure reduction and speed increase, flows through the second heat regenerator 11 to absorb heat, enters the expansion machine 2 to perform pressure reduction and work through the middle air inlet port, and then enters the heat regenerator 8, and the second path of condensate or the condensate after heat release continuously enters the evaporator 7 after throttling and pressure reduction through the throttle valve 4; the circulating working medium entering the evaporator 7 absorbs heat and is vaporized, and then enters the heat regenerator 8; circulating working medium discharged by the low-temperature compressor A releases heat and is condensed through the evaporator 7, throttled and depressurized through the low-temperature throttle valve B, absorbed and evaporated through the low-temperature evaporator C, and then enters the low-temperature compressor A to be boosted and heated; the heated medium obtains high-temperature heat load through the heat supplier 5 and the second heat supplier 6, the low-temperature heat load is provided by the low-temperature heat medium through the low-temperature evaporator C, the power is provided for the compressor 1, the second compressor 3 and the low-temperature compressor A by the outside and the expander 2 together, and the dual-working-medium combined cycle heat pump device is formed.

The dual-working-medium combined-cycle heat pump apparatus shown in fig. 4 is realized by:

(1) structurally, the system mainly comprises a compressor, an expander, a second compressor, a throttle valve, a heat supplier, a second heat supplier, an evaporator, a heat regenerator, a reheater, a low-temperature compressor, a low-temperature throttle valve and a low-temperature evaporator; the compressor 1 is divided into two paths after a circulating working medium channel is communicated with a heat supplier 5, wherein the first path is communicated with the expander 2, the expander 2 and a reheating circulating working medium channel are communicated with the expander 2 through a reheater 12, the expander 2 and a circulating working medium channel are communicated with a heat regenerator 8, the second path is communicated with the second compressor 3 through a second heat supplier 6, the second compressor 3 and a circulating working medium channel are communicated with the heat regenerator 8 through the reheater 12, then the heat regenerator 8 and a condensate liquid pipeline are communicated with an evaporator 7 through a throttle valve 4, the evaporator 7 and a circulating working medium channel are communicated with the heat regenerator 8, and the heat regenerator 8 and the circulating working medium channel are communicated with the compressor 1; the low-temperature compressor A is provided with a circulating working medium channel which is communicated with a low-temperature evaporator C through an evaporator 7 and a low-temperature throttle valve B, and the low-temperature evaporator C is also provided with a circulating working medium channel which is communicated with the low-temperature compressor A; the heat supplier 5 and the second heat supplier 6 are also respectively communicated with the outside through heated medium channels, the low-temperature evaporator C is also communicated with the outside through a low-temperature heat medium channel, and the expander 2 is connected with the compressor 1 and transmits power.

(2) In the process, the circulating working medium discharged by the expander 2 and the evaporator 7 enters the heat regenerator 8 to absorb heat and raise temperature, and then enters the compressor 1 to raise the pressure and raise the temperature; the circulating working medium discharged by the compressor 1 flows through the heat supply device 5 and releases heat, and then is divided into two paths, wherein the first path enters the expansion machine 2 to reduce the pressure and do work to a certain degree, then flows through the reheater 12 to absorb heat, enters the expansion machine 2 to continue to reduce the pressure and do work, and then enters the heat regenerator 8, the second path flows through the second heat supply device 6 to release heat, flows through the second compressor 3 to increase the pressure and temperature, flows through the reheater 12 and the heat regenerator 8 to gradually release heat and condense, flows through the throttle valve 4 to throttle and reduce the pressure, and then enters the evaporator 7; the circulating working medium entering the evaporator 7 absorbs heat and is vaporized, and then enters the heat regenerator 8; circulating working medium discharged by the low-temperature compressor A releases heat and is condensed through the evaporator 7, throttled and depressurized through the low-temperature throttle valve B, absorbed and evaporated through the low-temperature evaporator C, and then enters the low-temperature compressor A to be boosted and heated; the heated medium obtains high-temperature heat load through the heat supplier 5 and the second heat supplier 6, the low-temperature heat load is provided by the low-temperature heat medium through the low-temperature evaporator C, the power is provided for the compressor 1, the second compressor 3 and the low-temperature compressor A by the outside and the expander 2 together, and the dual-working-medium combined cycle heat pump device is formed.

The dual-working-medium combined-cycle heat pump apparatus shown in fig. 5 is realized by:

(1) structurally, the system mainly comprises a compressor, an expander, a second compressor, a throttle valve, a heat supplier, a second heat supplier, an evaporator, a heat regenerator, a high-temperature heat regenerator, a low-temperature compressor, a low-temperature throttle valve and a low-temperature evaporator; the compressor 1 is provided with a circulating working medium channel which is communicated with a high-temperature heat regenerator 13 through a heat supplier 5 and then divided into two paths, wherein the first path is communicated with a heat regenerator 8 through an expander 2, the second path is communicated with a second compressor 3 through a second heat supplier 6, after the second compressor 3 is also provided with the circulating working medium channel which is communicated with the heat regenerator 8, a condensate liquid pipeline of the heat regenerator 8 is communicated with an evaporator 7 through a throttle valve 4, the evaporator 7 is also provided with the circulating working medium channel which is communicated with the heat regenerator 8, and the heat regenerator 8 is also provided with the circulating working medium channel which is communicated with the compressor 1 through the high-temperature heat regenerator 13; the low-temperature compressor A is provided with a circulating working medium channel which is communicated with a low-temperature evaporator C through an evaporator 7 and a low-temperature throttle valve B, and the low-temperature evaporator C is also provided with a circulating working medium channel which is communicated with the low-temperature compressor A; the heat supplier 5 and the second heat supplier 6 are also respectively communicated with the outside through heated medium channels, the low-temperature evaporator C is also communicated with the outside through a low-temperature heat medium channel, and the expander 2 is connected with the compressor 1 and transmits power.

(2) In the process, the circulating working medium discharged by the expander 2 and the evaporator 7 enters the heat regenerator 8 to absorb heat and raise the temperature, flows through the high-temperature heat regenerator 13 to absorb heat, and then enters the compressor 1 to boost the pressure and raise the temperature; the circulating working medium discharged by the compressor 1 passes through the heat supplier 5 and the high-temperature heat regenerator 13 to gradually release heat, and then is divided into two paths, namely a first path flows through the expander 2 to reduce the pressure and do work and then enters the heat regenerator 8, a second path flows through the second heat supplier 6 to release heat, flows through the second compressor 3 to increase the pressure and the temperature, flows through the heat regenerator 8 to release heat and condense, flows through the throttle valve 4 to reduce the pressure in a throttling way and then enters the evaporator 7; the circulating working medium entering the evaporator 7 absorbs heat and is vaporized, and then enters the heat regenerator 8; circulating working medium discharged by the low-temperature compressor A releases heat and is condensed through the evaporator 7, throttled and depressurized through the low-temperature throttle valve B, absorbed and evaporated through the low-temperature evaporator C, and then enters the low-temperature compressor A to be boosted and heated; the heated medium obtains high-temperature heat load through the heat supplier 5 and the second heat supplier 6, the low-temperature heat load is provided by the low-temperature heat medium through the low-temperature evaporator C, the power is provided for the compressor 1, the second compressor 3 and the low-temperature compressor A by the outside and the expander 2 together, and the dual-working-medium combined cycle heat pump device is formed.

The dual-working-medium combined-cycle heat pump apparatus shown in fig. 6 is realized by:

(1) structurally, the system mainly comprises a compressor, an expander, a second compressor, a throttle valve, a heat supplier, a second heat supplier, an evaporator, a heat regenerator, a low-temperature compressor, a low-temperature throttle valve and a low-temperature evaporator; the compressor 1 is provided with a first circulating working medium channel communicated with a second heat supplier 6, the second heat supplier 6 is also provided with a circulating working medium channel communicated with a heat regenerator 8 through an expander 2, the compressor 1 is also provided with a second circulating working medium channel communicated with a second compressor 3 through a heat supplier 5, the heat regenerator 8 is further provided with a condensate liquid pipeline communicated with an evaporator 7 through a throttle valve 4 after the second compressor 3 is also provided with the circulating working medium channel communicated with the heat regenerator 8, the evaporator 7 is also provided with a circulating working medium channel communicated with the heat regenerator 8, and the heat regenerator 8 is also provided with a circulating working medium channel communicated with the compressor 1; the low-temperature compressor A is provided with a circulating working medium channel which is communicated with a low-temperature evaporator C through an evaporator 7 and a low-temperature throttle valve B, and the low-temperature evaporator C is also provided with a circulating working medium channel which is communicated with the low-temperature compressor A; the heat supplier 5 and the second heat supplier 6 are also respectively communicated with the outside through heated medium channels, the low-temperature evaporator C is also communicated with the outside through a low-temperature heat medium channel, and the expander 2 is connected with the compressor 1 and transmits power.

(2) In the process, the circulating working medium discharged by the expander 2 and the evaporator 7 enters the heat regenerator 8 to absorb heat and raise temperature, enters the compressor 1 to be boosted and raised temperature to a certain degree and then is divided into two paths, wherein the first path flows through the second heat supplier 6 to release heat, flows through the expander 2 to reduce the pressure and do work and enters the heat regenerator 8, the second path continues to be boosted and raised in temperature, flows through the heat supplier 5 to release heat, flows through the second compressor 3 to be boosted and raised in temperature, flows through the heat regenerator 8 to release heat and condense, flows through the throttle valve 4 to throttle and lower the pressure and enters the evaporator 7; the circulating working medium entering the evaporator 7 absorbs heat and is vaporized, and then enters the heat regenerator 8; circulating working medium discharged by the low-temperature compressor A releases heat and is condensed through the evaporator 7, throttled and depressurized through the low-temperature throttle valve B, absorbed and evaporated through the low-temperature evaporator C, and then enters the low-temperature compressor A to be boosted and heated; the heated medium obtains high-temperature heat load through the heat supplier 5 and the second heat supplier 6, the low-temperature heat load is provided by the low-temperature heat medium through the low-temperature evaporator C, the power is provided for the compressor 1, the second compressor 3 and the low-temperature compressor A by the outside and the expander 2 together, and the dual-working-medium combined cycle heat pump device is formed.

The dual-working-medium combined-cycle heat pump apparatus shown in fig. 7 is realized by:

(1) structurally, the system mainly comprises a compressor, an expander, a second compressor, a throttle valve, a heat supplier, a second heat supplier, an evaporator, a heat regenerator, a low-temperature compressor, a low-temperature throttle valve and a low-temperature evaporator; the compressor 1 is provided with a first circulating working medium channel which is communicated with the second compressor 3 through a heat supplier 5, the second compressor 3 is also provided with a circulating working medium channel which is communicated with a heat regenerator 8, then the heat regenerator 8 is further provided with a condensate liquid pipeline which is communicated with an evaporator 7 through a throttle valve 4, the compressor 1 is also provided with a second circulating working medium channel which is communicated with a second heat supplier 6, the second heat supplier 6 is also provided with a circulating working medium channel which is communicated with the heat regenerator 8 through an expander 2, the evaporator 7 is also provided with a circulating working medium channel which is communicated with the heat regenerator 8, and the heat regenerator 8 is also provided with a circulating working medium channel which is communicated with the compressor 1; the low-temperature compressor A is provided with a circulating working medium channel which is communicated with a low-temperature evaporator C through an evaporator 7 and a low-temperature throttle valve B, and the low-temperature evaporator C is also provided with a circulating working medium channel which is communicated with the low-temperature compressor A; the heat supplier 5 and the second heat supplier 6 are also respectively communicated with the outside through heated medium channels, the low-temperature evaporator C is also communicated with the outside through a low-temperature heat medium channel, and the expander 2 is connected with the compressor 1 and transmits power.

(2) In the process, the circulating working medium discharged by the expander 2 and the evaporator 7 enters the heat regenerator 8 to absorb heat and raise temperature, enters the compressor 1 to be boosted and raised temperature to a certain degree and then is divided into two paths, wherein the first path flows through the heat supplier 5 to release heat, flows through the second compressor 3 to be boosted and raised temperature, flows through the heat regenerator 8 to release heat and be condensed, flows through the throttle valve 4 to be throttled and reduced in pressure and enters the evaporator 7, and the second path continues to be boosted and raised in temperature, flows through the second heat supplier 6 to release heat, flows through the expander 2 to be reduced in pressure and do work and enters the heat regenerator 8; the circulating working medium entering the evaporator 7 absorbs heat and is vaporized, and then enters the heat regenerator 8; circulating working medium discharged by the low-temperature compressor A releases heat and is condensed through the evaporator 7, throttled and depressurized through the low-temperature throttle valve B, absorbed and evaporated through the low-temperature evaporator C, and then enters the low-temperature compressor A to be boosted and heated; the heated medium obtains high-temperature heat load through the heat supplier 5 and the second heat supplier 6, the low-temperature heat load is provided by the low-temperature heat medium through the low-temperature evaporator C, the power is provided for the compressor 1, the second compressor 3 and the low-temperature compressor A by the outside and the expander 2 together, and the dual-working-medium combined cycle heat pump device is formed.

The dual-working-medium combined-cycle heat pump apparatus shown in fig. 8 is realized by:

(1) structurally, the system mainly comprises a compressor, an expander, a second compressor, a throttle valve, a heat supplier, a second heat supplier, an evaporator, a heat regenerator, a newly-added compressor, a low-temperature throttle valve and a low-temperature evaporator; the compressor 1 is provided with a circulating working medium channel which is communicated with the second compressor 3 through the heat supplier 5, after the second compressor 3 is also provided with the circulating working medium channel which is communicated with the heat regenerator 8, the heat regenerator 8 is further provided with a condensate liquid pipeline which is communicated with the evaporator 7 through the throttle valve 4, the evaporator 7 is also provided with the circulating working medium channel which is communicated with the heat regenerator 8, the heat regenerator 8 is also provided with the circulating working medium channel which is respectively communicated with the compressor 1 and the newly added compressor D, the newly added compressor D is also provided with the circulating working medium channel which is communicated with the second heat supplier 6, and the second heat supplier 6 is also provided with the circulating working medium channel which is communicated with the heat regenerator 8 through the expander 2; the low-temperature compressor A is provided with a circulating working medium channel which is communicated with a low-temperature evaporator C through an evaporator 7 and a low-temperature throttle valve B, and the low-temperature evaporator C is also provided with a circulating working medium channel which is communicated with the low-temperature compressor A; the heat supplier 5 and the second heat supplier 6 are also respectively communicated with the outside through heated medium channels, the low-temperature evaporator C is also communicated with the outside through a low-temperature heat medium channel, and the expander 2 is connected with the compressor 1 and transmits power.

(2) In the process, the circulating working medium discharged by the expander 2 and the evaporator 7 enters the heat regenerator 8 to absorb heat and raise temperature, and then is divided into two paths, namely, the first path flows through the newly-added compressor D to increase the pressure and raise the temperature, flows through the second heat supplier 6 to release heat, flows through the expander 2 to reduce the pressure and do work and enters the heat regenerator 8, the second path flows through the compressor 1 to increase the pressure and raise the temperature, flows through the heat supplier 5 to release heat, flows through the second compressor 3 to increase the pressure and raise the temperature, flows through the heat regenerator 8 to release heat and condense, flows through the throttle valve 4 to throttle and lower the pressure and enters the evaporator 7; the circulating working medium entering the evaporator 7 absorbs heat and is vaporized, and then enters the heat regenerator 8; circulating working medium discharged by the low-temperature compressor A releases heat and is condensed through the evaporator 7, throttled and depressurized through the low-temperature throttle valve B, absorbed and evaporated through the low-temperature evaporator C, and then enters the low-temperature compressor A to be boosted and heated; the heated medium obtains high-temperature heat load through the heat supplier 5 and the second heat supplier 6, the low-temperature heat load is provided by the low-temperature heat medium through the low-temperature evaporator C, the power is provided for the compressor 1, the second compressor 3, the low-temperature compressor A and the newly-added compressor D by the exterior and the expander 2 together, and the double-working-medium combined cycle heat pump device is formed.

The dual-working-medium combined-cycle heat pump apparatus shown in fig. 9 is realized by:

(1) structurally, in the dual-working medium combined cycle heat pump device shown in fig. 6, a third heat supply device is added, the second compressor 3 is adjusted to be communicated with the heat regenerator 8 through a working medium circulation channel, the second compressor 3 is adjusted to be communicated with the heat regenerator 8 through the third heat supply device 9, and the third heat supply device 9 is also communicated with the outside through a heated medium channel.

(2) Compared with the dual-working-medium combined cycle heat pump device shown in fig. 6, the difference in the flow is that: the circulating working medium discharged by the second compressor 3 passes through the third heat supplier 9 and the heat regenerator 8 to gradually release heat and condense, passes through the throttle valve 4 to throttle and reduce pressure, and then enters the evaporator 7 to form the double-working-medium combined cycle heat pump device.

The dual-working-medium combined-cycle heat pump apparatus shown in fig. 10 is realized by:

(1) structurally, in the dual-working-medium combined cycle heat pump device shown in fig. 6, a spray pipe and a second heat regenerator are added, the communication between the second compressor 3 and the heat regenerator 8 is adjusted to be that the second compressor 3 has a circulating working medium channel which is communicated with the heat regenerator 8 through a second heat regenerator 11, and the heat regenerator 8 is additionally provided with the circulating working medium channel from the middle or the tail end, and is communicated with the expander 2 through a middle air inlet port after passing through the spray pipe 10 and the second heat regenerator 11.

(2) Compared with the dual-working-medium combined cycle heat pump device shown in fig. 6, the difference in the flow is that: the circulating working medium discharged by the second compressor 3 flows through the second heat regenerator 11 and releases heat, then enters the heat regenerator 8 to release heat, and is partially or completely condensed and then is divided into two paths, wherein the first path flows through the spray pipe 10 to reduce the pressure and increase the speed, flows through the second heat regenerator 11 to absorb heat, enters the expander 2 through the middle air inlet port to reduce the speed and reduce the pressure and apply work, and then enters the heat regenerator 8, and the second path of condensate or the condensate after the second path of condensate continues to release heat enters the evaporator 7 after being throttled and reduced in pressure by the throttle valve 4, so that the dual-working-medium combined cycle heat pump device is formed.

In addition, the following points are required: the circulating working medium flowing through the spray pipe 10 is subjected to pressure reduction and speed increase through the spray pipe 10, flows through the second heat regenerator 11 to absorb heat, and then enters the expansion machine 2; besides performing conventional pressure reduction work, the expander 2 is also responsible for converting kinetic energy converted by the circulating fluid flowing through the nozzle 10 into power and providing the power to the compressor 1.

The dual-working-medium combined-cycle heat pump apparatus shown in fig. 11 is realized by:

(1) structurally, in the dual-working-medium combined cycle heat pump device shown in fig. 6, a reheater is added, the communication between the second compressor 3 and the reheater 8 is adjusted to be that the second compressor 3 has a circulation working medium channel which is communicated with the reheater 8 through the reheater 12, the communication between the second heat supply 6 and the reheater 8 is adjusted to be that the second heat supply 6 has a circulation working medium channel which is communicated with the expander 2 through the expander 2, the expander 2 also has a circulation working medium channel which is communicated with the expander 2 through the expander 12, and the expander 2 also has a circulation working medium channel which is communicated with the reheater 8.

(2) Compared with the dual-working-medium combined cycle heat pump device shown in fig. 6, the difference in the flow is that: the circulating working medium discharged by the second compressor 3 releases heat through the reheater 12, releases heat and condenses through the reheater 8, throttles and reduces pressure through the throttle valve 4, and then enters the evaporator 7; the circulating working medium discharged by the second heat supplier 6 enters the expansion machine 2 to reduce the pressure and do work to a certain degree, then flows through the reheater 12 to absorb heat, flows through the expansion machine 2 to continue to reduce the pressure and do work, and then enters the heat regenerator 8 to form the double-working medium combined cycle heat pump device.

The dual-working-medium combined-cycle heat pump apparatus shown in fig. 12 is realized by:

(1) structurally, in the dual-working-medium combined cycle heat pump device shown in fig. 1, a throttle valve is eliminated, a turbine is added, the communication between a condensate pipeline of a heat regenerator 8 and an evaporator 7 through a throttle valve 4 is adjusted to be that the heat regenerator 8 is provided with a condensate pipeline which is communicated with the evaporator 7 through a turbine 14, and the turbine 14 is connected with a compressor 1 and transmits power.

(2) Compared with the dual-working-medium combined cycle heat pump device shown in fig. 1, the difference in the flow is that: the circulating working medium discharged by the second compressor 3 flows through the heat regenerator 8 to release heat and condense, flows through the turbine 14 to reduce pressure and do work, and then enters the evaporator 7; the work output by the turbine 14 is supplied to the compressor 1 as power, forming a dual-working-medium combined-cycle heat pump apparatus.

The dual-working-medium combined-cycle heat pump apparatus shown in fig. 13 is realized by:

(1) structurally, in the dual-working-medium combined cycle heat pump device shown in fig. 1, a newly added heat regenerator is added, a circulating working medium channel of a low-temperature compressor A is communicated with a low-temperature evaporator C through an evaporator 7 and a low-temperature throttle valve B and adjusted to be communicated with the low-temperature evaporator C through the evaporator 7, the newly added heat regenerator E and the low-temperature throttle valve B, and a circulating working medium channel of the low-temperature evaporator C is communicated with the low-temperature compressor A through the newly added heat regenerator E and adjusted to be communicated with the low-temperature evaporator C through the circulating working medium channel of the low-temperature compressor A.

(2) Compared with the dual-working-medium combined cycle heat pump device shown in fig. 1, the difference in the flow is that: the circulating working medium discharged by the low-temperature compressor A flows through the evaporator 7 to release heat and condense, flows through the newly-added heat regenerator E to release heat, flows through the low-temperature throttle valve B to throttle and reduce pressure, flows through the low-temperature evaporator C to absorb heat and evaporate, flows through the newly-added heat regenerator E to absorb heat, and then enters the low-temperature compressor A to increase pressure and temperature, so that the double-working-medium combined circulating heat pump device is formed.

The dual-working-medium combined-cycle heat pump apparatus shown in fig. 14 is realized by:

(1) structurally, in the dual-working-medium combined cycle heat pump device shown in fig. 1, a low-temperature throttle valve is omitted, a new turbine is added, a circulating working medium channel of a low-temperature compressor A is communicated with a low-temperature evaporator C through an evaporator 7 and a low-temperature throttle valve B, the low-temperature compressor A is adjusted to be communicated with the low-temperature evaporator C through the evaporator 7 and a new turbine F, and the new turbine F is connected with the low-temperature compressor A and transmits power.

(2) Compared with the dual-working-medium combined cycle heat pump device shown in fig. 1, the difference in the flow is that: circulating working medium discharged by the low-temperature compressor A flows through the evaporator 7 to release heat and condense, flows through the newly-added turbine F to reduce pressure and do work, flows through the low-temperature evaporator C to absorb heat and evaporate, and then enters the low-temperature compressor A to increase pressure and temperature; the work output by the new turbine F is provided for the low-temperature compressor A as power, and a double-working-medium combined cycle heat pump device is formed.

The dual-working-medium combined-cycle heat pump apparatus shown in fig. 15 is realized by:

(1) structurally, in the dual-working-medium combined cycle heat pump device shown in fig. 1, a newly-added dual-energy compressor G is added to replace a low-temperature compressor a, and a newly-added spray pipe H is added to replace a low-temperature throttle valve B.

(2) Compared with the dual-working-medium combined cycle heat pump device shown in fig. 1, the difference in the flow is that: circulating working media discharged by the newly-added dual-energy compressor G flow through the evaporator 7 to release heat and condense, flow through the newly-added spray pipe H to reduce the pressure and increase the speed, flow through the low-temperature evaporator C to absorb heat and evaporate, and then enter the newly-added dual-energy compressor G to increase the pressure, increase the temperature and reduce the speed; the external part and the expander 2 jointly provide power for the compressor 1, the second compressor 3 and the newly-added dual-energy compressor G to form a dual-working-medium combined cycle heat pump device.

The effect that the technology of the invention can realize-the double-working-medium combined cycle heat pump device provided by the invention has the following effects and advantages:

(1) basic technologies for mechanical energy refrigeration and heating utilization (energy difference utilization) are provided.

(2) The heat supply load in the phase change heat release process is eliminated or greatly reduced, the heat supply load of a high-temperature heat supply section is relatively increased, and the performance index of the device is improved.

(3) The adverse effect of condensate sensible heat on obtaining low-temperature heat load is eliminated, and the performance index of the device is improved.

(4) Greatly improving the utilization degree of the sensible heat of the condensate, being beneficial to reducing the compression ratio and improving the performance index of the device.

(5) The working parameter range is greatly expanded, and high-efficiency heat supply and high-efficiency high-temperature heat supply are realized.

(6) The working pressure is reduced, and the safety of the device is improved.

(7) The adoption of double working media is beneficial to expanding the refrigeration and heat supply parameter range and regulating the pressure parameter range.

(8) In the high temperature area or the variable temperature area, the temperature difference heat transfer loss of the heat release link is reduced, and the performance index is improved.

(9) And a low-pressure operation mode is adopted in a high-temperature heat supply area, so that the contradiction between the performance index, the circulating medium parameter and the pressure and temperature resistance of the pipe in the traditional refrigeration and heat pump device is relieved or solved.

(10) The application range is wide, the energy supply requirement can be well met, and the working medium and the working parameters are flexibly matched.

(11) The application range of the cold/heat efficient utilization of the mechanical energy is expanded, and the efficient utilization of the mechanical energy in the fields of refrigeration, high-temperature heat supply and variable-temperature heat supply is favorably realized.