A coupled solar and air energy heating system

Abstract

This utility model relates to the field of heating system technology, and in particular to a coupled solar and air energy heating system, including a compressor, a water-side heat exchanger, a liquid storage tank, an evaporator, and a photovoltaic panel. The liquid medium output end of the water-side heat exchanger is connected to the liquid medium input end of the liquid storage tank, and the liquid medium output end of the liquid storage tank is connected to the liquid medium input end of the evaporator. The liquid medium output end pipe of the evaporator passes through the bottom of the photovoltaic panel and contacts the photovoltaic panel. This coupled solar and air energy heating system solves the shortcomings of the prior art where the photovoltaic panel can only dissipate heat through itself.

Description

Technical Field

[0001] This utility model relates to the field of heating system technology, and in particular to a coupled solar and air energy heating system. Background Technology

[0002] Currently, heat pump systems are highly efficient energy conversion devices. They mainly absorb heat from the surrounding environment through evaporation and use this absorbed heat to heat domestic water, thereby providing hot water to users. To improve heating efficiency and reduce energy consumption, existing heat pump systems are often used in conjunction with photovoltaic panels, which absorb solar energy to generate electricity for heating domestic water.

[0003] However, in existing technologies, heat pump systems and photovoltaic panels are mostly set up separately. Photovoltaic panels can only dissipate heat on their own and cannot rely on heat pump systems for auxiliary heat dissipation. This heat dissipation is mostly not ideal, causing photovoltaic panels to be at high temperatures for a long time, which reduces the photoelectric conversion efficiency of photovoltaic panels. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing photovoltaic panels, which can only dissipate heat through their own power, and to propose a coupled solar and air energy heating system.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] Design a solar and air energy coupled heating system, including a compressor, a water-side heat exchanger, a liquid storage tank, an evaporator, and a photovoltaic panel. The liquid medium output end of the water-side heat exchanger is connected to the liquid medium input end of the liquid storage tank, and the liquid medium output end of the liquid storage tank is connected to the liquid medium input end of the evaporator. The liquid medium output pipe of the evaporator passes under the photovoltaic panel and contacts the photovoltaic panel. The system also includes:

[0007] The four-way valve assembly includes a valve body. The outer wall of the valve body has a first valve port, a second valve port, a third valve port, and a fourth valve port. The first valve port is connected to the second valve port, and the third valve port is connected to the fourth valve port. The outlet of the compressor is connected to the first valve port through a pipeline, and the return port of the compressor is connected to the third valve port through a pipeline. The second valve port is connected to the liquid medium input end of the water-side heat exchanger, and the fourth valve port is connected to the liquid medium output end of the evaporator through a pipeline.

[0008] Preferably, it also includes a heat dissipation switching component, which includes a heat spreader plate that is fitted and installed in contact with the lower end surface of the photovoltaic panel. A heat conduction block is provided below the heat spreader plate. The heat conduction block can fit in contact with the lower end surface of the heat spreader plate. A coupling groove is provided at the lower end of the heat conduction block. The coupling groove is used to insert the liquid medium output pipe of the evaporator.

[0009] Preferably, the outer surface of the heat spreader is provided with heat dissipation fins, and a cover plate is snapped onto the lower end of the heat conduction block. The cover plate can form a cover for the heat spreader. A telescopic frame is connected between the cover plate and the lower end of the photovoltaic panel. The telescopic frame can change the contact state between the heat spreader and the heat conduction block.

[0010] Preferably, the connecting pipeline between the liquid medium output end of the storage tank and the liquid medium input end of the evaporator is further provided with an electronic expansion valve, which is used to control the flow rate of the liquid medium in the pipeline.

[0011] Preferably, one end of the input and output terminals of the water-side heat exchanger is also provided with a water flow interface, which is connected to a water tank. The water-side heat exchanger absorbs the temperature of the liquid medium and transfers the temperature to the water tank, thereby heating the water in the water tank.

[0012] The beneficial effects of the coupled solar and air energy heating system proposed in this utility model are as follows:

[0013] By attaching a photovoltaic panel to the liquid medium pipeline behind the evaporator, the high temperature on the surface of the photovoltaic panel can be carried away through the liquid medium pipeline, thereby reducing the temperature of the photovoltaic panel and achieving a cooling effect.

[0014] The water in the tank is heated simultaneously by the electricity generated by the photovoltaic panel and the air source heat pump system, which improves heating efficiency and reduces the power consumption of the air source heat pump system. Attached Figure Description

[0015] Figure 1 A flowchart with the main body as the main element;

[0016] Figure 2 A schematic diagram showing the contact state between the heat-conducting block and the heat spreader of the heat dissipation switching component;

[0017] Figure 3 A cross-sectional view of the contact state between the heat-conducting block and the heat spreader of the heat dissipation switching component.

[0018] Figure 4 A schematic diagram of the structure of the heat dissipation switching component in the state where the heat-conducting block is detached from the heat spreader.

[0019] Figure 5 This is a cross-sectional view of the heat-conducting block of the heat dissipation switching component detached from the heat spreader.

[0020] In the diagram: 1. Compressor; 2. Outlet; 3. Return port; 4. Valve body; 5. First valve port; 6. Second valve port; 7. Third valve port; 8. Fourth valve port; 9. Water-side heat exchanger; 10. Water tank; 11. Water flow interface; 12. Liquid storage tank; 13. Evaporator; 14. Electronic expansion valve; 15. Photovoltaic panel; 16. Heat spreader; 17. Heat-conducting block; 18. Coupling groove; 19. Cover plate; 20. Telescopic frame. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Example 1

[0023] Reference Figure 1 A solar and air energy coupled heating system includes a compressor 1, a water-side heat exchanger 9, a liquid storage tank 12, an evaporator 13, and a photovoltaic panel 15. The liquid medium output end of the water-side heat exchanger 9 is connected to the liquid medium input end of the liquid storage tank 12, and the liquid medium output end of the liquid storage tank 12 is connected to the liquid medium input end of the evaporator 13. The liquid medium output end pipe of the evaporator 13 passes under the photovoltaic panel 15 and contacts the photovoltaic panel 15. The system also includes:

[0024] The four-way valve assembly includes a valve body 4. The outer wall of the valve body 4 has a first valve port 5, a second valve port 6, a third valve port 7, and a fourth valve port 8. The first valve port 5 is connected to the second valve port 6, the third valve port 7 is connected to the fourth valve port 8, the outlet port 2 of the compressor 1 is connected to the first valve port 5 through a pipeline, the return port 3 of the compressor 1 is connected to the third valve port 7 through a pipeline, the second valve port 6 is connected to the liquid medium input end of the water-side heat exchanger 9, and the fourth valve port 8 is connected to the liquid medium output end of the evaporator 13 through a pipeline.

[0025] Furthermore, an electronic expansion valve 14 is also provided in the connecting pipeline between the liquid medium output end of the liquid storage tank 12 and the liquid medium input end of the evaporator 13. The electronic expansion valve 14 is used to control the flow rate of the liquid medium in the pipeline.

[0026] Furthermore, a water flow interface 11 is provided at one end of the input and output terminals of the water-side heat exchanger 9. The water flow interface 11 is connected to the water tank 10. The water-side heat exchanger 9 absorbs the temperature of the liquid medium and transfers the temperature to the water tank 10 so that the water in the water tank 10 can be heated.

[0027] Working principle:

[0028] Compressor 1 sends liquid medium out through outlet 2. Outlet 2 sends liquid medium to first valve port 5 through pipeline. First valve port 5 is connected to second valve port 6. Liquid medium flows out through second valve port 6 and then into water-side heat exchanger 9 through pipeline. Water-side heat exchanger 9 absorbs heat and conducts the temperature to the water in water tank 10, thus heating the water in water tank 10. Afterward, liquid medium is output from water-side heat exchanger 9 and sent to liquid storage tank 12 through pipeline. Liquid medium in liquid storage tank 12 passes through electronic expansion valve 14 through pipeline. After the flow rate of liquid medium is controlled by electronic expansion valve 14, it enters evaporator 13. Liquid medium in evaporator 13 enters fourth valve port 8 through pipeline. Fourth valve port 8 is connected to third valve port 7. Finally, liquid medium flows into return port 3 of compressor 1 through third valve port 7, thus completing one cycle. Heat exchange is completed in this cycle to realize the air source heat pump system.

[0029] In the above cycle, an air source heat pump system is formed. The pipe located at the output end of the evaporator 13 also passes through the photovoltaic panel 15. The pipe contacts the lower end surface of the photovoltaic panel 15 to remove the heat from the photovoltaic panel 15. It should be noted that the photovoltaic panel 15 is located behind the evaporator 13, where the liquid medium temperature is equal to or lower than the ambient temperature. Therefore, even in the absence of sunlight, the refrigerant gas that absorbs heat through evaporation in the evaporator 13 can still absorb the heat from the photovoltaic panel 15 without heating the photovoltaic panel 15 or reducing the heating capacity of the heating system.

[0030] With the above structure, the water tank 10 can not only be heated by the air source heat pump system, but also be heated by the power generation of the photovoltaic panel 15. At the same time, the output pipe of the evaporator 13 in the air source heat pump system can also absorb heat and cool down the photovoltaic panel 15, so as to avoid the photovoltaic panel 15 from degrading due to high temperature.

[0031] Example 2

[0032] In Example 1, the water tank 10 can be heated by the air source heat pump system and electrically heated by the electricity generated by the photovoltaic panel 15. The air source heat pump system also cools the photovoltaic panel 15. However, in some special application scenarios, users may not want to cool the photovoltaic panel 15 using the air source heat pump system. In such cases, to ensure high heat dissipation efficiency of the photovoltaic panel 15, refer to... Figure 2 , Figure 3 , Figure 4 , Figure 5 It also includes a heat dissipation switching component, which includes a heat spreader 16 that is attached to the lower end face of the photovoltaic panel 15. A heat conduction block 17 is provided below the heat spreader 16. The heat conduction block 17 can be attached to the lower end face of the heat spreader 16. A coupling groove 18 is provided at the lower end of the heat conduction block 17. The coupling groove 18 is used to insert the liquid medium output pipe of the evaporator 13.

[0033] Furthermore, refer to Figure 3 , Figure 5 Heat dissipation fins are provided on the outer surface of the heat spreader 16, and a cover plate 19 is snapped onto the lower end of the heat conduction block 17. The cover plate 19 can form a cover for the heat spreader 16. A telescopic frame 20 is connected between the cover plate 19 and the lower end of the photovoltaic panel 15. The telescopic frame 20 can change the contact state between the heat spreader 16 and the heat conduction block 17.

[0034] Working principle:

[0035] When the air source heat pump system is used to cool the photovoltaic panel 15, the telescopic frame 20 is adjusted so that the heat-conducting block 17 comes into contact with the heat spreader 16, forming... Figure 3 The schematic structure in the diagram shows that the temperature of the heat spreader 16 can be transferred to the heat conduction block 17, which in turn transfers the temperature to the pipes in the coupling groove 18, thereby achieving temperature conduction. At the same time, the cover plate 19 shields the heat spreader 16, making it difficult for ambient air to directly contact the heat spreader 16, thus preventing the temperature emitted by the pipes in the coupling groove 18 from being excessively absorbed by the environment. The cover plate 19 can also shield the contact area between the heat spreader 16 and the heat conduction block 17, preventing dust from entering and affecting the heat conduction efficiency.

[0036] When the heat spreader 16 is used to cool the photovoltaic panel 15, the telescopic frame 20 is adjusted so that the heat conduction block 17 is separated from the heat spreader 16. At this time, the cover plate 19 stops covering the heat spreader 16 and allows the ambient air to come into contact with the heat spreader 16 and the heat dissipation fins on the heat spreader 16 to achieve natural heat dissipation.

[0037] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A solar and air energy coupled heating system comprising a compressor (1), a water side heat exchanger (9), a liquid storage tank (12), an evaporator (13), a photovoltaic panel (15), characterized in that: The liquid medium output end of the water-side heat exchanger (9) is connected to the liquid medium input end of the liquid storage tank (12), the liquid medium output end of the liquid storage tank (12) is connected to the liquid medium input end of the evaporator (13), and the liquid medium output end pipe of the evaporator (13) passes under the photovoltaic panel (15) and contacts the photovoltaic panel (15), and also includes: The four-way valve assembly includes a valve body (4). The outer wall of the valve body (4) is provided with a first valve port (5), a second valve port (6), a third valve port (7), and a fourth valve port (8). The first valve port (5) is connected to the second valve port (6), the third valve port (7) is connected to the fourth valve port (8), the outlet (2) of the compressor (1) is connected to the first valve port (5) through a pipeline, the return port (3) of the compressor (1) is connected to the third valve port (7) through a pipeline, the second valve port (6) is connected to the liquid medium input end of the water-side heat exchanger (9), and the fourth valve port (8) is connected to the liquid medium output end of the evaporator (13) through a pipeline.

2. The system as claimed in claim 1, wherein: It also includes a heat dissipation switching component, which includes a heat spreader (16) that is attached to the lower end face of the photovoltaic panel (15). A heat conduction block (17) is provided below the heat spreader (16). The heat conduction block (17) can be attached to the lower end face of the heat spreader (16). A coupling groove (18) is provided at the lower end of the heat conduction block (17). The coupling groove (18) is used to insert the liquid medium output pipe of the evaporator (13).

3. The solar and air energy coupled heating system according to claim 2, wherein: The outer surface of the heat spreader (16) is provided with heat dissipation fins. The lower end of the heat conduction block (17) is attached to a cover plate (19). The cover plate (19) can form a cover for the heat spreader (16). A telescopic frame (20) is connected between the cover plate (19) and the lower end of the photovoltaic panel (15). The telescopic frame (20) can change the contact state between the heat spreader (16) and the heat conduction block (17).

4. The solar and air energy coupled heating system according to claim 1, characterized in that: An electronic expansion valve (14) is also provided in the connecting pipeline between the liquid medium output end of the liquid storage tank (12) and the liquid medium input end of the evaporator (13). The electronic expansion valve (14) is used to control the flow rate of the liquid medium in the pipeline.

5. A solar and air energy coupled heating system according to claim 1, characterized in that: The water-side heat exchanger (9) is provided with a water flow interface (11) at one end of its input and output terminals. The water flow interface (11) is connected to a water tank (10). The water-side heat exchanger (9) absorbs the temperature of the liquid medium and transfers the temperature to the water tank (10) so that the water in the water tank (10) can be heated.

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