阅读说明：本技术 一种全热源热泵系统 (Total heat source heat pump system ) 是由 栾佳昕 李鹏志 栾桂吉 程钦旺 陈忠卫 王瑞生 于 2021-02-22 设计创作，主要内容包括：本发明提供一种全热源热泵系统,涉及热泵领域。该全热源热泵系统包括压缩机、四通阀、冷凝器、储液器、经济器、节流阀、蒸发器、气液分离器、经济器节流阀、能源模块、单向阀、溶液泵。该全热源热泵系统能源模块采用大流量小温差设计,溶液与空气温差小,不易结霜,无需频繁化霜,能耗小,效率高,换热器表面采用石墨烯涂料,换热效率高；表面密度高,不易沾水、不易结霜,蒸发器采用满溢式设计,制冷剂与溶液充分换热,换热器充分利用,蒸发均匀,效率高。(The invention provides a total heat source heat pump system, and relates to the field of heat pumps. The total heat source heat pump system comprises a compressor, a four-way valve, a condenser, a liquid storage device, an economizer, a throttling valve, an evaporator, a gas-liquid separator, an economizer throttling valve, an energy module, a one-way valve and a solution pump. The energy module of the total heat source heat pump system adopts a large-flow small-temperature-difference design, the temperature difference between a solution and air is small, frosting is not easy to occur, frequent defrosting is not needed, energy consumption is small, efficiency is high, and the surface of a heat exchanger adopts graphene coating, so that heat exchange efficiency is high; the evaporator adopts an overflow type design, the refrigerant and the solution exchange heat fully, the heat exchanger is fully utilized, the evaporation is uniform, and the efficiency is high.)

1. A total heat source heat pump system comprises a compressor (1), a four-way valve (2), a condenser (3), a liquid storage device (4), an economizer (5), a throttling valve (6), an evaporator (7), a gas-liquid separator (8), an economizer throttling valve (9), an energy module (10), a one-way valve (11) and a solution pump (12).

2. The full heat source heat pump system according to claim 1, wherein: the outlet of the compressor (1) is connected with a No. 1 port of the four-way valve (2), a No. 2 port of the four-way valve (2) is connected with a refrigerant inlet of the condenser (3), and a refrigerant outlet of the condenser (3) is connected with an inlet of the liquid accumulator (4).

3. The full heat source heat pump system according to claim 1, wherein: the outlet of the liquid storage device (4) is respectively connected with a 1# port of the economizer (5) and the inlet of an economizer throttle valve (9), a 2# port of the economizer (5) is connected with the inlet of a throttle valve (6), and the outlet of the throttle valve (6) is connected with the refrigerant inlet of an evaporator (7).

4. The full heat source heat pump system according to claim 1, wherein: the refrigerant outlet of the evaporator (7) is connected with the 3# port of the four-way valve (2), the 4# port of the four-way valve (2) is connected with the inlet of the gas-liquid separator (8), and the outlet of the gas-liquid separator (8) is connected with the inlet of the compressor (1).

5. The full heat source heat pump system according to claim 1, wherein: the outlet of the economizer throttling valve (9) is connected with a 3# port of the economizer (5), and a 4# port of the economizer (5) is connected with an economizer interface of the compressor (1).

6. The full heat source heat pump system according to claim 1, wherein: the evaporator (7) water channel outlet is connected with an inlet of an energy module (10), an outlet of the energy module (10) is connected with an inlet of a solution pump (12), and an outlet of the solution pump (12) is connected with a water channel inlet of the evaporator (7).

7. The full heat source heat pump system according to claim 1, wherein: the energy module (10) consists of a heat exchanger and a fan.

8. The full heat source heat pump system according to claim 7, wherein: the graphene coating is coated on the outer side of the heat exchanger.

Technical Field

The invention relates to the technical field of heat pumps, in particular to a full heat source heat pump system.

Background

Haze in the winter heating season in the north places more importance on the pollution-free heat pump technology, and the inherent advantages of energy conservation and environmental protection are gradually accepted by all the communities.

Currently, there are two main types of heat pump heating technologies commonly used: water (ground) source heat pump technology: the technology is efficient and environment-friendly, and is widely popularized in the past years. However, due to the extensive popularization of water source heat pumps, unreasonable use of water resources causes extreme waste of underground water, and in some areas, the water source heat pumps are called to stop in recent years, even to close wells. The ground source heat pump has large investment, is limited by site and city planning, and cannot be expanded in a large area. Is more available "without ground" for the retrofit projects; the air source heat pump technology comprises the following steps: due to the flameout of the water (ground) source heat pump technology, the air source heat pump unit which is environment-friendly, relatively energy-saving, flexible and convenient to install and low in investment is greatly developed in recent years. However, sensible heat and extremely little latent heat of air can be absorbed only in weather with relative humidity lower than 50%, and in high-humidity environment, particularly in haze weather, an air source unit is seriously frosted, frequent defrosting is realized, heating capacity and energy efficiency are greatly reduced, and heat supply and energy saving requirements cannot be met.

In the traditional air source heat pump units, a refrigerant exchanges heat with air through a finned evaporator on the outdoor side, the temperature difference between the refrigerant and the air is large, the frosting is easy to occur, the defrosting is frequent, and the energy consumption is large; along with the reduction of the air temperature, the circulation quantity of the refrigerant is reduced, the distribution of the refrigerant entering the evaporator is uneven, the heat exchanger is not fully used, the liquid returns to the system, and the efficiency is poor.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides a total heat source heat pump system which has all the advantages of an air source unit, solves the problem that the air source heat pump unit is frequently frosted and defrosted in high-humidity weather, absorbs sensible heat and latent heat in air, and greatly improves the heating capacity and energy efficiency so as to solve the problems in the background technology.

(II) technical scheme

In order to achieve the purpose, the invention is realized by the following technical scheme: a total heat source heat pump system comprises a compressor, a four-way valve, a condenser, a liquid storage device, an economizer, a throttle valve, an evaporator, a gas-liquid separator, an economizer throttle valve, an energy module, a one-way valve and a solution pump.

Preferably, the outlet of the compressor is connected with the port 1 of the four-way valve, the port 2 of the four-way valve is connected with the refrigerant inlet of the condenser, and the refrigerant outlet of the condenser is connected with the inlet of the liquid accumulator.

Preferably, the outlet of the accumulator is respectively connected with a port 1 of an economizer and the inlet of an economizer throttling valve, a port 2 of the economizer is connected with the inlet of the throttling valve, and the outlet of the throttling valve is connected with the refrigerant inlet of the evaporator.

Preferably, the refrigerant outlet of the evaporator is connected with a 3# port of a four-way valve, a 4# port of the four-way valve is connected with the inlet of a gas-liquid separator, and the outlet of the gas-liquid separator is connected with the inlet of a compressor.

Preferably, the economizer throttle outlet is connected to the economizer port # 3, and the economizer port # 4 is connected to the compressor economizer port.

Preferably, the evaporator waterway outlet is connected with an inlet of an energy module, the outlet of the energy module is connected with an inlet of a solution pump, and the outlet of the solution pump is connected with the evaporator waterway inlet.

Preferably, the energy module consists of a heat exchanger and a fan.

Preferably, the outer side of the heat exchanger is coated with graphene paint.

The invention provides a total heat source heat pump system, which has the following beneficial effects:

1. the energy module of the total heat source heat pump system adopts a large-flow small-temperature-difference design, the temperature difference between a solution and air is small, frosting is not easy to occur, frequent defrosting is not needed, energy consumption is low, and efficiency is high.

2. The surface of the heat exchanger of the total heat source heat pump system adopts the graphene coating, so that the heat exchange efficiency is high; high surface density, and is not easy to be wetted and frosted.

3. The full heat source heat pump system evaporator adopts an overflow type design, the refrigerant and the solution exchange heat fully, the heat exchanger is fully utilized, the evaporation is uniform, and the efficiency is high.

Drawings

FIG. 1 is a schematic connection diagram of the present invention;

in the figure: 1. a compressor; 2. a four-way valve; 3. a condenser; 4. a reservoir; 5. an economizer; 6. a throttle valve; 7. an evaporator; 8. a gas-liquid separator; 9. an economizer throttle valve; 10. an energy module; 11. a one-way valve; 12. and a solution pump.

Detailed Description

The embodiment of the invention provides a total heat source heat pump system, which comprises a compressor 1, a four-way valve 2, a condenser 3, a liquid storage device 4, an economizer 5, a throttle valve 6, an evaporator 7, a gas-liquid separator 8, an economizer throttle valve 9, an energy module 10, a one-way valve 11 and a solution pump 12, as shown in fig. 1.

The outlet of the compressor 1 is connected with the 1# port of the four-way valve 2, the 2# port of the four-way valve 2 is connected with the refrigerant inlet of the condenser 3, and the refrigerant outlet of the condenser 3 is connected with the inlet of the liquid accumulator 4.

The outlet of the accumulator 4 is respectively connected with a port 1 of an economizer 5 and the inlet of an economizer throttle valve 9, a port 2 of the economizer 5 is connected with the inlet of a throttle valve 6, and the outlet of the throttle valve 6 is connected with the refrigerant inlet of an evaporator 7.

The refrigerant outlet of the evaporator 7 is connected with the 3# port of the four-way valve 2, the 4# port of the four-way valve 2 is connected with the inlet of the gas-liquid separator 8, and the outlet of the gas-liquid separator 8 is connected with the inlet of the compressor 1.

The outlet of the economizer throttling valve 9 is connected with a 3# port of the economizer 5, and a 4# port of the economizer 5 is connected with an economizer interface of the compressor 1.

The water channel outlet of the evaporator 7 is connected with the inlet of an energy module 10, the outlet of the energy module 10 is connected with the inlet of a solution pump 12, and the outlet of the solution pump 12 is connected with the water channel inlet of the evaporator 7.

The energy module 10 consists of a heat exchanger and a fan.

The graphene coating is coated on the outer side of the heat exchanger, so that the heat exchange efficiency is high; high surface density, and is not easy to be wetted and frosted.

The working principle is as follows: high-temperature and high-pressure refrigerant gas discharged from a compressor 1 enters a port 1 of a four-way valve 2, the high-temperature and high-pressure refrigerant gas from the port 2 enters a refrigerant inlet of a condenser 3, the high-temperature and high-pressure refrigerant gas exchanges heat with hot water in the condenser to transfer heat to the hot water, the refrigerant gas is condensed into refrigerant liquid, the refrigerant liquid is discharged from a refrigerant outlet of the condenser, passes through a one-way valve 11, enters an inlet of a liquid accumulator 4, is discharged from an outlet of the liquid accumulator to enter a port 1 of an economizer 5, is discharged from the port 2 of the economizer 5 after being cooled for the second time in the economizer 5 and then is divided into two paths, one path of the refrigerant liquid is throttled and decompressed through a throttle valve 6 to become low-temperature and low-pressure refrigerant liquid, and enters a refrigerant inlet of an evaporator 7 through the one-way valve 11, the low-temperature and low-pressure refrigerant liquid exchanges heat with solution in the, enters the 3 ports of the four-way valve 2, is discharged from the 4 ports of the four-way valve 2, enters the inlet of the gas-liquid separator 8, is discharged from the outlet of the gas-liquid separator 8 and enters the suction port of the compressor 1;

the other path discharged from the port 2 of the economizer 5 is throttled and depressurized by an economizer throttle valve 9 to become low-temperature and low-pressure refrigerant liquid, enters the port 3 of the economizer 5, absorbs the heat of the refrigerant liquid entering from the port 1 in the economizer 5, is evaporated into refrigerant gas, is discharged from the port 4 of the economizer 5, and enters a port of the economizer 5 through a one-way valve 11;

the outlet of the solution pump 12 is connected with the solution inlet of the evaporator 7, the solution exchanges heat with the refrigerant in the evaporator 7 to transfer heat to the refrigerant, then the solution is discharged from the solution outlet of the evaporator 7 and enters the energy module 10, the solution exchanges heat with the air in the energy module 10 to absorb the heat of the air, the temperature of the solution rises, then the solution is discharged from the energy module and enters the inlet of the solution pump, the evaporator 7 adopts an overflow design, the refrigerant and the solution exchange heat fully, the heat exchanger is fully utilized, the evaporation is uniform, and the efficiency is high.

The energy module 10 comprises a heat exchanger and a fan, the heat exchanger adopts a large-flow small-temperature-difference design, the solution and air countercurrent heat exchange of the traditional air source heat pump can only ensure countercurrent heat exchange in one mode of refrigeration or heating, and after mode conversion, the countercurrent heat exchange is changed into concurrent flow, and the heat exchange effect is poor; the heat transfer temperature difference is small, generally between 2 and 4 ℃, and the temperature difference of the traditional air source heat pump unit which is not easy to frost is between 8 and 12 ℃; the fin heat exchanger adopts the large plate distance of 4-6mm and the large tube distance of 52mm 45mm or 50mm, so that the frosting and defrosting period of the unit is more than 8 hours even under the environment of 100 percent relative humidity. The fin spacing of the traditional air source heat pump is 1.6-2.0mm, the tube spacing is 25.4mm 22mm, the energy module 10 adopts a large-flow small temperature difference design, the temperature difference between a solution and air is small, frosting is not easy to occur, frequent defrosting is not needed, the energy consumption is small, and the efficiency is high.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.