Air-water heat exchange photo-thermal photovoltaic device with filtering function

Abstract

The utility model discloses an air-water heat exchange photo-thermal photovoltaic device with a filtering function, which comprises an air-water heat exchange mechanism and a photo-thermal photovoltaic heat collector, the air-water heat exchange mechanism comprises a heat exchange box body, the photo-thermal photovoltaic heat collector is arranged at the top of the heat exchange box body, a heat exchange pipe group is arranged in the heat exchange box body, and the air-water heat exchange mechanism is connected with the photo-thermal photovoltaic heat collector. The heat exchange pipe set is composed of a plurality of heat exchange pipelines, the heat exchange pipelines are distributed in a linear array mode, every two adjacent heat exchange pipelines are communicated with each other, each heat exchange pipeline is composed of an outer pipe body and six inner pipe bodies, the inner pipe bodies are arranged in the outer pipe bodies, and the inner pipe bodies are arranged in the outer pipe bodies. And the six inner pipe bodies are distributed in an annular array. Hot air and cold water are limited in the narrow heat exchange pipeline to flow reversely, the hot air can be in full contact with the six inner pipe bodies gradually, secondary heat conduction does not need to be conducted with the help of fins, excessive heat loss can be avoided, and the heat absorption efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchange devices, and in particular to an air-water heat exchange photothermal photovoltaic device with a filtering function. Background Art

[0002] An air-to-water heat exchanger is a common heat exchange device used to transfer heat energy from a heat source to a cooling medium. The principle of an air-to-water heat exchanger is based on heat conduction and convection. It usually consists of two main parts: a hot medium (usually gas) for transferring heat and a cooling medium (usually water) for receiving heat. The two media flow through different channels inside the heat exchanger, allowing heat to be transferred from one medium to another.

[0003] Photovoltaic-thermal integrated technology is a comprehensive method of utilizing solar energy. Photovoltaic technology converts solar radiation into electrical energy, while photothermal technology converts solar radiation into thermal energy. Photovoltaic-thermal integrated devices combine these two technologies to achieve dual utilization of solar energy and provide clean, renewable energy.

[0004] The gas-water heat exchange photovoltaic device is a product of combining an gas-water heat exchanger with a photovoltaic-thermal integrated device. The photovoltaic-thermal integrated device is used to heat the gaseous heat medium of the gas-water heat exchanger, and then the water is heated by the gaseous heat medium.

[0005] When some existing air-water heat exchange devices are in use, fins are added to the heat exchange pipe to increase the heat exchange area. However, the heat is transferred from the hot air to the fins and then to the heat exchange pipe through two heat conductions. During the second heat conduction process, the heat will be further dissipated, which is not conducive to sufficient absorption of the heat.

[0006] For example, the patent publication number CN209147466U discloses a solar-based air-water heat exchange device. This patent uses solar vacuum tubes to heat the air on the solar vacuum tube side, and uses a fan to blow the hot air to the air-water heat exchange device. Through air-water heat exchange, the purpose of heating the heating end and the water system is achieved.

[0007] This patent circulates hot air through an external wind system, continuously bringing in hot air. The hot air blows through the fins to transfer the heat to the S-shaped tube, and then heats the water in the S-shaped tube, continuously increasing the water temperature flowing from the water inlet to the water outlet, thereby achieving the purpose of air-water heat exchange. Although the fins can increase the heat exchange area, the heat is transferred from the hot air to the fins and then to the S-shaped tube through two heat conductions. During the second heat conduction process, the heat will be further dissipated, which is not conducive to sufficient absorption of the heat.

[0008] Therefore, it is necessary to invent an air-water heat exchange photothermal photovoltaic device with filtering function to solve the above problems. Utility Model Content

[0009] The utility model aims to provide an air-water heat exchange photothermal photovoltaic device with a filtering function to solve the problems in the above-mentioned technology.

[0010] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: an air-water heat exchange photothermal photovoltaic device with a filtering function, comprising an air-water heat exchange mechanism and a photothermal photovoltaic collector, the air-water heat exchange mechanism comprising a heat exchange box, the photothermal photovoltaic collector is installed on the top of the heat exchange box, a heat exchange tube group is arranged inside the heat exchange box, the heat exchange tube group is composed of a plurality of heat exchange pipes, the plurality of heat exchange pipes are distributed in a linear array, two adjacent heat exchange pipes are connected to each other, the heat exchange pipes are composed of an outer pipe body and an inner pipe body, the inner pipe body is arranged inside the outer pipe body, the number of the inner pipe bodies is set to six, the six inner pipe bodies are distributed in a ring array, the inner wall of the outer pipe body is fixedly connected to a thermal insulation layer, and the inner wall of the thermal insulation layer is fixedly connected to an aluminum-plated reflective film.

[0011] By arranging a heat-insulating layer and an aluminum-plated reflective film inside the outer tube body, a heat-insulating effect can be achieved, thereby preventing the hot air from excessively dissipating heat to the outside during the flow process.

[0012] Preferably, one end of the heat exchange tube group extends to one side outside the heat exchange box and is fixedly connected to a No. 1 three-way pipe, and the other end of the heat exchange tube group extends to the other side outside the heat exchange box and is fixedly connected to a No. 2 three-way pipe.

[0013] The heat exchange pipeline and the circulating gas pipe are connected through the No. 1 tee pipe and the No. 2 tee pipe.

[0014] Preferably, the remaining two ports of the No. 1 tee pipe are respectively a low-temperature water inlet port and a low-temperature air outlet port, and the remaining two ports of the No. 2 tee pipe are respectively a high-temperature water outlet port and a high-temperature air inlet port.

[0015] Preferably, a circulating air pipe is provided inside the photothermal photovoltaic collector, and two ends of the circulating air pipe are respectively a low-temperature air inlet port and a high-temperature air outlet port.

[0016] After the gaseous heat medium enters the circulating air pipe, it is heated by the gaseous heat medium in the circulating air pipe of the solar thermal photovoltaic collector.

[0017] Preferably, a filter is installed on one side of the exterior of the heat exchange box, and a buffer tank is installed on the other side of the exterior of the heat exchange box.

[0018] The cold water entering the device can be filtered through the filter to prevent impurities and foreign objects in the water from clogging the pipes.

[0019] Preferably, the output end of the filter is fixedly connected to a water inlet pipe, the water inlet pipe is fixedly connected to the low-temperature water inlet port, the high-temperature water outlet port is fixedly connected to a water outlet pipe, and both the water inlet pipe and the water outlet pipe are connected to the six inner tube bodies.

[0020] Cold water is injected through the water inlet pipe and dispersed into the six inner tube bodies, and hot water is collected by the six inner tube bodies into the water outlet pipe and then discharged outward.

[0021] Preferably, one end of the buffer tank is fixedly connected to the high-temperature air outlet port, and the other end of the buffer tank is fixedly connected to the high-temperature air inlet port.

[0022] The buffer tank facilitates the injection of gaseous heat medium into the pipeline of the device.

[0023] Preferably, the low-temperature gas outlet port is fixedly connected to the low-temperature gas inlet port, and a gas circulation pump is installed between the buffer tank and the high-temperature gas inlet port.

[0024] The gaseous heat medium can be driven to circulate between the circulating gas pipe and the heat exchange pipeline through the gas circulation pump.

[0025] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0026] By dividing the heat exchange pipeline into an outer tube body and an inner tube body, cold water flows in the inner tube body and hot air flows in the outer tube body. During the flow of hot air, the hot air continuously transfers its own heat to the inner tube body. The cold water in the inner tube body continuously absorbs heat and heats up during the flow. The hot air and cold water are confined in the narrow heat exchange pipeline for reverse flow. The hot air can gradually and fully contact the six inner tube bodies. There is no need for secondary heat conduction with the help of fins, which can avoid excessive heat loss and help improve the heat absorption efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the overall structure of the utility model from a first viewing angle;

[0028] Figure 2 This is a schematic diagram of the overall structure of the utility model from a second viewing angle;

[0029] Figure 3 It is a partial structural sectional view of the utility model;

[0030] Figure 4 This is a schematic diagram of the structure of the heat exchange tube group of the utility model;

[0031] Figure 5 It is a structural cross-sectional view of the heat exchange pipeline of the utility model.

[0032] Description of reference numerals:

[0033] 1. Photovoltaic collector; 2. Heat exchange box; 3. Heat exchange pipeline; 4. Outer tube; 5. Inner tube; 6. Insulation layer; 7. Aluminum-plated reflective film; 8. No. 1 tee; 9. No. 2 tee; 10. Low-temperature water inlet port; 11. Low-temperature air outlet port; 12. High-temperature water outlet port; 13. High-temperature air inlet port; 14. Low-temperature air inlet port; 15. High-temperature air outlet port; 16. Filter; 17. Buffer tank; 18. Water inlet pipe; 19. Water outlet pipe; 20. Gas circulation pump. DETAILED DESCRIPTION

[0034] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0035] The utility model provides Figure 1-5 An air-water heat exchange photothermal photovoltaic device with a filtering function is shown, comprising an air-water heat exchange mechanism and a photothermal photovoltaic collector 1, the air-water heat exchange mechanism comprising a heat exchange box 2, the photothermal photovoltaic collector 1 is installed on the top of the heat exchange box 2, a heat exchange tube group is arranged inside the heat exchange box 2, the heat exchange tube group is composed of a plurality of heat exchange pipes 3, the plurality of heat exchange pipes 3 are distributed in a linear array, two adjacent heat exchange pipes 3 are interconnected, the heat exchange pipes 3 are composed of an outer pipe body 4 and an inner pipe body 5, the inner pipe body 5 is arranged inside the outer pipe body 4, the number of the inner pipe bodies 5 is set to six, the six inner pipe bodies 5 are distributed in a ring array, the inner wall of the outer pipe body 4 is fixedly connected to a thermal insulation layer 6, and the inner wall of the thermal insulation layer 6 is fixedly connected to an aluminum-plated reflective film 7.

[0036] In one aspect of the present embodiment, one end of the heat exchange tube group extends to one side of the outside of the heat exchange box 2 and is fixedly connected to a No. 1 three-way pipe 8, and the other end of the heat exchange tube group extends to the other side of the outside of the heat exchange box 2 and is fixedly connected to a No. 2 three-way pipe 9. The remaining two ports of the No. 1 three-way pipe 8 are respectively a low-temperature water inlet port 10 and a low-temperature gas outlet port 11, and the remaining two ports of the No. 2 three-way pipe 9 are respectively a high-temperature water outlet port 12 and a high-temperature gas inlet port 13. A circulating air pipe is arranged inside the solar thermal photovoltaic collector 1, and the two ends of the circulating air pipe are respectively a low-temperature gas inlet port 14 and a high-temperature gas outlet port 15. A filter 16 is installed on the side, and a buffer tank 17 is installed on the other side of the outside of the heat exchange box body 2. The output end of the filter 16 is fixedly connected with a water inlet pipe 18, the water inlet pipe 18 is fixedly connected to the low-temperature water inlet port 10, and the high-temperature water outlet port 12 is fixedly connected with a water outlet pipe 19. The water inlet pipe 18 and the water outlet pipe 19 are both connected to the six inner tube bodies 5. One end of the buffer tank 17 is fixedly connected to the high-temperature air outlet port 15, and the other end of the buffer tank 17 is fixedly connected to the high-temperature air inlet port 13. The low-temperature air outlet port 11 is fixedly connected to the low-temperature air inlet port 14, and a gas circulation pump 20 is installed between the buffer tank 17 and the high-temperature air inlet port 13.

[0037] Working principle of this utility model:

[0038] Refer to the instruction manual Figure 1-5 When using the utility model, firstly, the gaseous heat medium is injected into the buffer tank 17, and then the gas circulation pump 20 is started. The gaseous heat medium is drawn by the gas circulation pump 20 to circulate continuously between the circulating gas pipe and the heat exchange tube group. When the gaseous heat medium enters the circulating gas pipe, the gaseous heat medium in the circulating gas pipe is heated by the photothermal photovoltaic collector 1, and then the hot gas is discharged through the high-temperature gas outlet port 15, and the hot gas enters the No. 2 three-way pipe 9 from the high-temperature gas inlet port 13, and the hot gas is injected into the outer tube body 4 of the heat exchange pipeline 3 through the No. 2 three-way pipe 9;

[0039] During the circulation of hot gas, the water supply pipe is fixedly connected to the input end of the filter 16, and cold water is injected into the filter 16 through the water supply pipe. The impurities and foreign matters in the water are filtered out by the filter 16, and then the cold water enters the water inlet pipe 18, passes through the first tee pipe 8 through the low-temperature water inlet port 10, and then dispersed into the six inner tube bodies 5 of the heat exchange pipeline 3;

[0040] Cold water and hot air flow in the heat exchange pipeline 3 in the opposite direction. The hot air fully contacts the six inner tube bodies 5 while flowing in the outer tube body 4. In the process of the hot air flowing to the No. 1 three-way pipe 8, the heat of the hot air is continuously transferred to the inner tube body 5 and absorbed by the cold water. Finally, the low-temperature gaseous heat medium flows back to the circulating air pipe through the low-temperature outlet port 11 and the low-temperature inlet port 14, and the cold water is gradually heated and heated in the process of flowing to the No. 2 three-way pipe 9. Finally, the hot water is discharged to the outside through the high-temperature water outlet port 12 and the water outlet pipe 19.

Claims

1. An air-water heat exchange photothermal photovoltaic device with filtering function, comprising an air-water heat exchange mechanism and a photothermal photovoltaic collector (1), characterized in that: The air-water heat exchange mechanism comprises a heat exchange box (2), the solar thermal photovoltaic collector (1) is installed on the top of the heat exchange box (2), a heat exchange tube group is arranged inside the heat exchange box (2), the heat exchange tube group is composed of a plurality of heat exchange pipelines (3), the plurality of heat exchange pipelines (3) are distributed in a linear array, and two adjacent heat exchange pipelines (3) are interconnected, the heat exchange pipeline (3) is composed of an outer tube body (4) and an inner tube body (5), the inner tube body (5) is arranged inside the outer tube body (4), the number of the inner tube bodies (5) is set to six, and the six inner tube bodies (5) are distributed in a ring array, the inner wall of the outer tube body (4) is fixedly connected to a thermal insulation layer (6), and the inner wall of the thermal insulation layer (6) is fixedly connected to an aluminum-plated reflective film (7).

2. The air-water heat exchange photothermal photovoltaic device with filtering function according to claim 1, characterized in that: One end of the heat exchange tube group extends to one side outside the heat exchange box (2) and is fixedly connected to a No. 1 three-way pipe (8), and the other end of the heat exchange tube group extends to the other side outside the heat exchange box (2) and is fixedly connected to a No. 2 three-way pipe (9).

3. The air-water heat exchange photothermal photovoltaic device with filtering function according to claim 2, characterized in that: The remaining two ports of the No. 1 three-way pipe (8) are respectively a low-temperature water inlet port (10) and a low-temperature air outlet port (11), and the remaining two ports of the No. 2 three-way pipe (9) are respectively a high-temperature water outlet port (12) and a high-temperature air inlet port (13).

4. The air-water heat exchange photothermal photovoltaic device with filtering function according to claim 3, characterized in that: A circulating air pipe is arranged inside the photothermal photovoltaic collector (1), and two ends of the circulating air pipe are respectively a low-temperature air inlet port (14) and a high-temperature air outlet port (15).

5. The air-water heat exchange photothermal photovoltaic device with filtering function according to claim 4, characterized in that: A filter (16) is installed on one side of the exterior of the heat exchange box (2), and a buffer tank (17) is installed on the other side of the exterior of the heat exchange box (2).

6. The air-water heat exchange photothermal photovoltaic device with filtering function according to claim 5, characterized in that: The output end of the filter (16) is fixedly connected to a water inlet pipe (18), the water inlet pipe (18) is fixedly connected to the low-temperature water inlet port (10), the high-temperature water outlet port (12) is fixedly connected to a water outlet pipe (19), and both the water inlet pipe (18) and the water outlet pipe (19) are in communication with the six inner tube bodies (5).

7. The air-water heat exchange photothermal photovoltaic device with filtering function according to claim 5, characterized in that: One end of the buffer tank (17) is fixedly connected to the high-temperature air outlet port (15), and the other end of the buffer tank (17) is connected to the high-temperature air inlet port (13).

8. The air-water heat exchange photothermal photovoltaic device with filtering function according to claim 5, characterized in that: The low-temperature gas outlet port (11) is fixedly connected to the low-temperature gas inlet port (14), and a gas circulation pump (20) is installed between the buffer tank (17) and the high-temperature gas inlet port (13).

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