阅读说明：本技术 一种太阳能半导体发电系统 (Solar semiconductor power generation system ) 是由 钟承尧 严世胜 谢琼涛 李志波 于 2020-04-30 设计创作，主要内容包括：本发明公开了一种太阳能半导体发电系统,包括：太阳能热水装置,包括安装在室外的太阳能热水器、与太阳能热水器连接的蓄热保温水箱；太阳能冷水装置,包括安装在室外的太阳能冷水器、与太阳能冷水器连接的蓄冷保温水箱；半导体发电装置,包括进水口与蓄热保温水箱连接的热端交换器、进水口与蓄冷保温水箱连接的冷端交换器、位于热端交换器和冷端交换器之间的半导体发电装置,热端交换器的出水口与蓄热保温水箱的返水口连接,冷端交换器的出水口与蓄冷保温水箱的返水口连接,半导体发电装置的输出端接负载。该太阳能半导体发电系统无需蓄电池储能,充分利用太阳直接辐射能和存储于空气中的自然冷能,最大程度提高系统的发电效率,节约能源。(The invention discloses a solar semiconductor power generation system, comprising: the solar water heater comprises a solar water heater arranged outdoors and a heat storage and preservation water tank connected with the solar water heater; the solar water cooling device comprises a solar water cooler arranged outdoors and a cold and heat storage water tank connected with the solar water cooler; the semiconductor power generation device comprises a hot end exchanger with a water inlet connected with the heat storage and heat preservation water tank, a cold end exchanger with a water inlet connected with the cold storage and heat preservation water tank, and a semiconductor power generation device positioned between the hot end exchanger and the cold end exchanger, wherein a water outlet of the hot end exchanger is connected with a water return port of the heat storage and heat preservation water tank, a water outlet of the cold end exchanger is connected with a water return port of the cold storage and heat preservation water tank, and an output end of the semiconductor power generation device is. The solar semiconductor power generation system does not need storage batteries for energy storage, makes full use of solar direct radiation energy and natural cold energy stored in the air, improves the power generation efficiency of the system to the maximum extent, and saves energy.)

1. A solar semiconductor power generation system, comprising:

the solar water heating device comprises a solar water heater (1) arranged outdoors and a heat storage and preservation water tank (4) connected with the solar water heater (1);

the solar water cooling device comprises a solar water cooler (15) arranged outdoors and a cold and heat storage water tank (13) connected with the solar water cooler (15);

the semiconductor power generation device (8) comprises a hot end exchanger (7) with a water inlet connected with the heat storage and heat preservation water tank (4), a cold end exchanger (9) with a water inlet connected with the cold storage and heat preservation water tank (13), and a semiconductor power generation device (8) positioned between the hot end exchanger (7) and the cold end exchanger (9), wherein a water outlet of the hot end exchanger (7) is connected with a water return port of the heat storage and heat preservation water tank (4), a water outlet of the cold end exchanger (9) is connected with a water return port of the cold storage and heat preservation water tank (13), and an output end of the semiconductor power generation device (8) is connected with a load (10).

2. Solar semiconductor power generation system according to claim 1, characterized by further comprising an automatic control device (17), in which a temperature sensor is mounted in both the hot side exchanger (7) and the cold side exchanger (9), said temperature sensor being electrically connected to the automatic control device (17).

3. Solar semiconductor power generation system according to claim 2, characterized in that hot water flows from the thermal storage holding tank (4) through the hot end exchanger (7) via a hot water supply pump (3); cold water flows through the cold end exchanger (9) from the cold storage and heat preservation water tank (13) through a cold water supply pump (14).

4. Solar semiconductor power generation system according to claim 3, characterized in that the automatic control device (17) is electrically connected to both the hot water supply pump (3) and the cold water supply pump (14).

5. The solar semiconductor power generation system according to claim 2, wherein hot water flows from the heat-storage and warm-water-holding tank (4) through the hot-end exchanger (7) via a hot-water supply throttle valve (5), a hot-water supply solenoid valve (6); cold water flows through the cold end exchanger (9) from the cold storage heat preservation water tank (13) through a cold water supply throttle valve (12) and a cold water supply electromagnetic valve (11), and the automatic control device (17) is electrically connected with the hot water supply electromagnetic valve (6) and the cold water supply electromagnetic valve (11).

6. The solar semiconductor power generation system according to claim 1, characterized in that a water heater throttle valve (2) is connected between the solar water heater (1) and the heat-storage and heat-preservation water tank (4); a water cooler throttle valve (16) is connected between the solar water cooler (15) and the cold and heat storage water tank (13).

7. The solar semiconductor power generation system according to claim 1,

hot water flows through the hot end exchanger (7) from the upper end of the heat storage and heat preservation water tank (4) and then returns to the lower end of the heat storage and heat preservation water tank (4);

and cold water flows through the cold end exchanger (9) from the lower end of the cold storage and heat preservation water tank (13) and then returns to the upper end of the cold storage and heat preservation water tank (13).

Technical Field

The invention relates to the technical field of solar power generation, in particular to a solar semiconductor power generation system.

Background

Energy is an important support of modern economy and an important foundation for survival and development of human society. The demand of people on energy is continuously increased, and the traditional energy resources such as coal, petroleum, natural gas and the like are gradually reduced. The traditional energy source seriously damages the ecological environment, so that the development and utilization of new energy sources are enhanced to become a hot spot of the current society. The semiconductor thermoelectric power generation can directly convert heat energy into electric energy, thereby not only effectively utilizing non-pollution energy sources such as geothermal energy, ocean heat energy, solar energy and the like in the nature, but also recovering a large amount of waste heat and waste heat generated in industry and life, and improving the energy utilization rate.

Thermoelectric power generation utilizes the seebeck effect, and the important reason for generating the seebeck effect is the result of diffusion of hot-end carriers to a cold end. The current carrier of the P-type semiconductor is a positive hole, and the positive temperature difference electromotive force is formed at the low-temperature end after the positive hole is diffused from the high-temperature end to the low-temperature end; and the current carrier of the N-type semiconductor is electrons, so that the low-temperature end is negative temperature difference electromotive force. If one end of the P-type and N-type semiconductors are connected and placed at the hot side and the other end is placed at the low temperature side, the high and low temperature sides of the two semiconductors will have a larger open circuit voltage.

Disclosure of Invention

The invention aims to provide a solar semiconductor power generation system which can fully utilize direct solar radiation energy and natural cold energy stored in air, improve the power generation efficiency of the system to the maximum extent and save energy.

In order to solve the technical problems, the invention provides the following technical scheme:

a solar semiconductor power generation system, comprising:

the solar water heating device comprises a solar water heater arranged outdoors and a heat storage and preservation water tank connected with the solar water heater;

the solar water cooling device comprises a solar water cooler arranged outdoors and a cold and heat storage water tank connected with the solar water cooler;

the semiconductor power generation device comprises a hot end exchanger with a water inlet connected with the heat storage and heat preservation water tank, a cold end exchanger with a water inlet connected with the cold storage and heat preservation water tank, and a semiconductor power generation device positioned between the hot end exchanger and the cold end exchanger, wherein the water outlet of the hot end exchanger is connected with the water return port of the heat storage and heat preservation water tank, the water outlet of the cold end exchanger is connected with the water return port of the cold storage and heat preservation water tank, and the output end of the semiconductor power generation device is connected with a load.

Preferably, the system further comprises an automatic control device, wherein temperature sensors are installed in the hot end exchanger and the cold end exchanger, and the temperature sensors are electrically connected with the automatic control device.

Preferably, hot water flows from the heat storage and preservation water tank through the hot end exchanger via a hot water supply pump; and cold water flows from the cold accumulation heat preservation water tank through the cold end exchanger via a cold water supply pump.

Preferably, the automatic control device is electrically connected with both the hot water supply pump and the cold water supply pump.

Preferably, hot water flows through the hot end exchanger from the heat storage and heat preservation water tank through a hot water supply throttle valve and a hot water supply electromagnetic valve; cold water flows through the cold end exchanger from the cold storage heat preservation water tank through a cold water supply throttle valve and a cold water supply electromagnetic valve, and the automatic control device is electrically connected with the hot water supply electromagnetic valve and the cold water supply electromagnetic valve.

Preferably, a water heater throttle valve is connected between the solar water heater and the heat storage and preservation water tank; and a water cooler throttle valve is connected between the solar water cooler and the cold accumulation heat preservation water tank.

Preferably, hot water flows through the hot end exchanger from the upper end of the heat storage and preservation water tank and then returns to the lower end of the heat storage and preservation water tank;

and cold water flows through the cold end exchanger from the lower end of the cold accumulation and heat preservation water tank and then returns to the upper end of the cold accumulation and heat preservation water tank.

The invention provides a solar semiconductor power generation system which comprises a solar water heating device, a solar water cooling device and a semiconductor power generation device. The solar water heater is arranged outdoors and converts solar energy into heat energy in sunny days. The heat storage and heat preservation water tank is connected with the solar water heater, stores the solar direct radiation energy in the water of the heat storage and heat preservation water tank, collects the solar direct radiation energy and stores the solar direct radiation energy in the water, and also preserves heat. The solar water cooling device comprises a solar water cooler and a cold and heat storage water tank, wherein the solar water cooler is arranged outdoors, and the temperature of water in the cold and heat storage water tank is reduced to the lowest temperature of the day at night. The cold accumulation heat preservation water tank is connected with the solar water cooler, natural cold energy in the air, namely indirect solar energy is stored in water of the cold accumulation heat preservation water tank, the indirect solar energy is collected and stored in the water, and heat preservation is carried out. The semiconductor power generation device comprises a hot-end exchanger, a cold-end exchanger and a semiconductor power generation device. The water inlet of the hot end exchanger is connected with the heat storage and insulation water tank, and the water outlet of the hot end exchanger is connected with the water return port of the heat storage and insulation water tank. The water inlet of the cold end exchanger is connected with the cold accumulation heat preservation water tank, and the water outlet of the cold end exchanger is connected with the water return port of the cold accumulation heat preservation water tank. The semiconductor power generation device is positioned between the hot end exchanger and the cold end exchanger, and the output end of the semiconductor power generation device is connected with the load.

When power is needed to be supplied, hot water of the hot end exchanger is subjected to water circulation, and cold water of the cold end exchanger is subjected to water circulation to keep the temperature difference of water in the hot end exchanger and the cold end exchanger, the semiconductor power generation device generates power and directly supplies the power to a load, a storage battery is not needed for storing electric energy, the power generation efficiency of the system is improved to the greatest extent, and energy is saved.

By applying the technical scheme provided by the embodiment of the invention, hot water can be fully adopted to store solar direct radiation energy and cold water to store natural cold energy (indirect solar energy) in air, the solar energy is converted into heat energy and cold energy and stored in water in the heat-preservation water tank, and when power needs to be supplied to a load, the semiconductor power generation device converts the heat energy and the cold energy in the water in the heat-preservation water tank into electric energy to be directly supplied to the load without storing the energy by a storage battery; meanwhile, the number of components of the system is reduced, and the structure is simpler.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic diagram of a solar semiconductor power generation system according to an embodiment of the present invention.

The drawings are numbered as follows:

the system comprises a solar water heater 1, a water heater throttle valve 2, a water heater throttle valve 3, a hot water supply pump 4, a heat storage and heat preservation water tank 5, a hot water supply throttle valve 6, a hot water supply solenoid valve 7, a hot end exchanger 8, a semiconductor power generation device 9, a cold end exchanger 9, a load 10, a cold water supply solenoid valve 11, a cold water supply throttle valve 12, a cold storage and heat preservation water tank 13, a cold water supply pump 14, a solar water cooler 15, a water cooler throttle valve 16 and an automatic control device 17.

Detailed Description

The core of the invention is to provide a solar semiconductor power generation system which can fully utilize direct solar radiation energy and natural cold energy stored in air, improve the power generation efficiency of the system to the maximum extent and save energy.

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, fig. 1 is a schematic diagram of a solar semiconductor power generation system according to an embodiment of the present invention.

In one embodiment, the present invention provides a solar semiconductor power generation system, comprising:

the solar water heater comprises a solar water heater 1 arranged outdoors and a heat storage and preservation water tank 4 connected with the solar water heater 1;

the solar water cooling device comprises a solar water cooler 15 arranged outdoors and a cold and heat storage water tank 13 connected with the solar water cooler 15;

the semiconductor power generation device 8 comprises a hot end exchanger 7 with a water inlet connected with the heat accumulation and heat preservation water tank 4, a cold end exchanger 9 with a water inlet connected with the cold accumulation and heat preservation water tank 13, and a semiconductor power generation device 8 positioned between the hot end exchanger 7 and the cold end exchanger 9, wherein the water outlet of the hot end exchanger 7 is connected with the water return port of the heat accumulation and heat preservation water tank 4, the water outlet of the cold end exchanger 9 is connected with the water return port of the cold accumulation and heat preservation water tank 13, and the output end of the semiconductor power generation device 8 is connected.

In the above structure, the solar semiconductor power generation system includes a solar water heating device, a solar water cooling device, and a semiconductor power generation device 8.

The solar water heater comprises a solar water heater 1 and a heat storage and preservation water tank 4, wherein the solar water heater 1 is installed outdoors and converts solar energy into heat energy in sunny days. The heat storage and heat preservation water tank 4 is connected with the solar water heater 1, stores the solar direct radiation energy in the water of the heat storage and heat preservation water tank 4, collects the solar direct radiation energy and stores the solar direct radiation energy in the water, and also preserves heat.

The solar water cooling device comprises a solar water cooler 15 and a cold and heat storage water tank 13, wherein the solar water cooler 15 is installed outdoors, and the temperature of water in the cold and heat storage water tank 13 is reduced to the lowest temperature of the day at night. The cold storage and heat preservation water tank 13 is connected with the solar water cooler 15, natural cold energy in the air, namely indirect solar energy is stored in water of the cold storage and heat preservation water tank 13, and the indirect solar energy is stored in the water after being collected and is also subjected to heat preservation.

Meanwhile, the semiconductor power generation device 8 includes a hot-side exchanger 7, a cold-side exchanger 9, and the semiconductor power generation device 8. The water inlet of the hot end exchanger 7 is connected with the heat storage and heat preservation water tank 4, and the water outlet of the hot end exchanger 7 is connected with the water return port of the heat storage and heat preservation water tank 4. The water inlet of the cold-end exchanger 9 is connected with the cold accumulation heat preservation water tank 13, and the water outlet of the cold-end exchanger 9 is connected with the water return port of the cold accumulation heat preservation water tank 13. The semiconductor power generation device 8 is positioned between the hot-end exchanger 7 and the cold-end exchanger 9, and the output end of the semiconductor power generation device 8 is connected with a load 10.

When power supply is needed, hot water in the hot end exchanger 7 is circulated, cold water in the cold end exchanger 9 is circulated, so that the temperature difference of water in the hot end exchanger 7 and the cold end exchanger 9 is kept, the semiconductor power generation device 8 generates power and directly supplies the power to the load 10, a storage battery is not needed for storing electric energy, the power generation efficiency of the system is improved to the maximum extent, and energy is saved.

By applying the technical scheme provided by the embodiment of the invention, hot water can be fully adopted to store solar direct radiation energy and cold water to store natural cold energy (indirect solar energy) in air, the solar energy is converted into heat energy and cold energy and stored in water in the heat-preservation water tank, and when the load 10 needs to be supplied with power, the semiconductor power generation device 8 converts the heat energy and the cold energy in the water in the heat-preservation water tank into electric energy to be directly supplied to the load 10 without storing the energy by a storage battery, so that the defect that the storage battery is required to be adopted in the conventional solar power generation independent power supply system to store the electric energy is overcome, and the cost of using the storage battery in the system and the environmental pollution generated after the storage battery is scrapped are reduced; meanwhile, the number of components of the system is reduced, and the structure is simpler.

On the basis of the specific embodiment, the system further comprises an automatic control device 17, temperature sensors are installed in the hot end exchanger 7 and the cold end exchanger 9, the temperature sensors are electrically connected with the automatic control device 17 through conducting wires, the temperature sensors can accurately detect the temperatures of water in the hot end exchanger 7 and the cold end exchanger 9, after the temperatures of the water in the hot end exchanger 7 and the cold end exchanger 9 are clearly known, the opening sizes of the hot water supply throttle valve 5 and the cold water supply throttle valve 12 can be specifically adjusted, so that the temperatures of the water in the hot end exchanger 7 and the cold end exchanger 9 can be accurately adjusted, the temperature difference of the water in the hot end exchanger 7 and the cold end exchanger 9 is kept, the semiconductor power generation device 8 is guaranteed to work in the optimal temperature difference, and the power generation efficiency of the system is.

Further optimizing the technical scheme, a person skilled in the art can make several changes to the above embodiment according to different specific situations, and hot water flows from the heat storage and heat preservation water tank 4 through the hot end exchanger 7 via the hot water supply pump 3; cold water flows from the cold storage holding water tank 13 through the cold end exchanger 9 via the cold water supply pump 14. The hot water supply pump 3 and the cold water supply pump 14 provide power, and hot water in the heat storage and heat preservation water tank 4 and cold water in the cold storage and heat preservation water tank 13 are respectively driven to enter the hot end exchanger 7 and the cold end exchanger 9 through the hot water supply pump 3 and the cold water supply pump 14.

The hot water supply pump 3 and the cold water supply pump 14 are controlled in a plurality of ways, can be manually adjusted and controlled, and have simple structures; the automatic control device 17 is electrically connected with the hot water supply pump 3 and the cold water supply pump 14, the actions of the hot water supply pump 3 and the cold water supply pump 14 are controlled through the automatic control device 17, the automatic control is realized, and the control is more convenient and accurate.

In another more reliable embodiment, on the basis of any one of the above embodiments, hot water flows from the heat-storage and heat-preservation water tank 4 through the hot-water exchanger 7 via the hot-water supply throttle valve 5; cold water flows through the cold end exchanger 9 from the cold storage heat preservation water tank 13 through the cold water supply throttle valve 12, the opening sizes of the hot water supply throttle valve 5 and the cold water supply throttle valve 12 are adjusted, the flow rates of hot water in the solar water heater 1 and cold water in the solar water cooler 15 which respectively enter the heat storage heat preservation water tank 4 and the cold storage heat preservation water tank 13 can be controlled, the temperature difference of water in the hot end exchanger 7 and the cold end exchanger 9 is kept, and the power generation efficiency of the semiconductor power generation device 8 is improved to the greatest extent; meanwhile, the flow is controlled conveniently through the hot water supply throttle valve 5 and the cold water supply throttle valve 12, the structure and the connection are simple, the manufacture and the maintenance are convenient, and the cost is low.

In addition to the above-described embodiments, hot water flows from the heat-storage and warm-keeping water tank 4 through the hot-end exchanger 7 via the hot-water supply solenoid valve 6; cold water flows from the cold storage heat preservation water tank 13 through the cold end exchanger 9 through the cold water supply electromagnetic valve 11, and the automatic control device 17 is electrically connected with the hot water supply electromagnetic valve 6 and the cold water supply electromagnetic valve 11.

When power supply is needed, the actions of the hot water supply electromagnetic valve 6 and the cold water supply electromagnetic valve 11 are controlled by the automatic control device 17; the opening sizes of the hot water supply throttle valve 5 and the cold water supply throttle valve 12 are automatically adjusted by using signals of the temperature sensors so as to keep the temperature difference of water in the hot end exchanger 7 and the cold end exchanger 9, ensure that the semiconductor power generation device 8 works in the optimal temperature difference, automatically control the whole process, improve the power generation efficiency of the system to the maximum extent and save energy.

According to the solar semiconductor power generation system provided by the invention, under the condition that other components are not changed, a water heater throttle valve 2 is connected between a solar water heater 1 and a heat storage and preservation water tank 4; a water cooler throttle valve 16 is connected between the solar water cooler 15 and the cold accumulation heat preservation water tank 13.

In the structure, the water heater throttle valve 2 and the water cooler throttle valve 16 are simple flow control valves, the opening sizes of the water heater throttle valve 2 and the water cooler throttle valve 16 are adjusted, and the flow rates of hot water in the solar water heater 1 and cold water in the solar water cooler 15 which respectively enter the heat storage heat preservation water tank 4 and the cold storage heat preservation water tank 13 can be controlled, so that solar energy is converted into heat energy as much as possible in a sunny day and is collected, and solar direct radiation energy is stored in water in the heat storage heat preservation water tank 4 for heat preservation; the temperature of the water in the cold storage and heat preservation water tank 13 is reduced to the lowest temperature in the same day as much as possible at night, and the natural cold energy in the air is stored in the water in the cold storage and heat preservation water tank 13 for heat preservation, so that the direct solar radiation energy and the natural cold energy stored in the air are fully utilized. Meanwhile, the flow is controlled conveniently through the water heater throttle valve 2 and the water cooler throttle valve 16, the structure and the connection are simple, the manufacture and the maintenance are convenient, and the cost is low.

With the solar semiconductor power generation system in each of the above embodiments, the hot water of the solar water heater 1 enters the upper end of the heat-storage and heat-preservation water tank 4, the temperature of the water at the upper end of the heat-storage and heat-preservation water tank 4 is the highest, and the temperature of the water at the lower end of the heat-storage and heat-preservation water tank 4 is relatively low. Hot water flows through the hot end exchanger 7 from the upper end of the heat storage and preservation water tank 4, so that the temperature of the hot water flowing through the hot end exchanger 7 is higher. The water in the hot end exchanger 7 returns to the lower end of the heat storage and heat preservation water tank 4, and the water in the heat storage and heat preservation water tank 4 enters the lower end of the solar water heater 1 from the lower end, so that the water in the heat storage and heat preservation water tank 4 circulates up and down, and the heat energy converted from solar energy is stored in the water in the heat storage and heat preservation water tank 4 in sequence.

Similarly, cold water of the solar water cooler 15 enters the lower end of the cold and heat storage water tank 13, the temperature of the water at the lower end of the cold and heat storage water tank 13 is lowest, and the temperature of the water at the upper end of the cold and heat storage water tank 13 is relatively higher. Cold water flows through the cold end exchanger 9 from the lower end of the cold storage and heat preservation water tank 13, and the cold water flows through the cold end exchanger 9 from the upper end of the cold storage and heat preservation water tank 13, so that the temperature of the cold water flowing through the cold end exchanger 9 is lower. The water of the cold end exchanger 9 returns to the upper end of the cold accumulation and heat preservation water tank 13, the water of the cold accumulation and heat preservation water tank 13 enters the upper end of the solar water cooler 15 from the upper end, so that the water of the cold accumulation and heat preservation water tank 13 forms circulation up and down, and the natural cold energy stored in the air is stored in the water of the cold accumulation and heat preservation water tank 13 by circulation in sequence. Therefore, the direct solar radiation energy and the natural cold energy stored in the air are fully utilized, the power generation efficiency of the system is improved to the maximum extent, and the energy is saved.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The solar semiconductor power generation system provided by the invention is described in detail above. The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.