Photovoltaic power generation waste heat recovery device

Abstract

The utility model belongs to the field of photovoltaic technology, and relates to a photovoltaic power generation waste heat recovery device. The photovoltaic panel fixing device comprises a photovoltaic panel fixing support and a photovoltaic panel. In the using process, photovoltaic power generation is carried out through the photovoltaic panel, after the temperature of the photovoltaic panel rises, heat can enter the waste heat absorption box body, hot air can be pumped to the heat preservation structure on the periphery of the water storage tank through the suction part, heat preservation is carried out on water in the water storage tank through the heat preservation structure, the shielding part is moved away, and the heat preservation effect is achieved. Therefore, an opening between the heat absorption water containing cavity and the high-flow-speed channel is opened, water flows into the heat absorption water containing cavity, the water is heated through follow-up waste heat, the water can synchronously drive the power recovery structure to rotate when flowing, then hydroelectric generation is conducted, generated electricity is input into the energy storage driving assembly, and the energy storage driving assembly drives the power recovery structure to rotate. And the energy storage driving assembly is used for driving the shielding piece to automatically and circularly utilize waste heat and water power, energy conservation and emission reduction are achieved, waste heat can be used for heat preservation and can be used for heating water, one heat has multiple purposes, and practicability is high.

Description

Technical Field

[0001] This utility model belongs to the field of photovoltaic technology and relates to a photovoltaic power generation waste heat recovery device. Background Technology

[0002] Because photovoltaic (PV) panels experience significant temperature increases during summer operation due to the high ambient temperature and the panel's own temperature rise, reaching 80-100 degrees Celsius when the ambient temperature is 37 degrees Celsius, the power generation is severely affected. Experimental results indicate that the ideal temperature for solar panels is generally 25 degrees Celsius, at which point solar power generation efficiency is highest. Above 25 degrees Celsius, efficiency decreases. Current technologies typically use water inlet for heat dissipation and temperature control, utilizing the water flow to absorb heat and recover waste heat. However, the potential energy generated by the flowing water is not fully utilized, and the waste heat only serves to heat the water. Insulating the water tank requires additional heat or energy, making it difficult to achieve the goal of recycling waste heat and hydraulic power. This results in low energy utilization and limited practicality. Therefore, there is an urgent need to design a photovoltaic waste heat recovery device that overcomes these shortcomings.

[0003] To overcome the shortcomings of existing technologies, people have continuously explored and proposed various solutions. For example, Chinese patent discloses a photovoltaic power generation panel waste heat recovery device [application number: 201810365647.2], which includes a base plate, a water tank fixedly connected to the top of the base plate, and a heat exchange box fixedly connected to the top of the water tank. A first support plate and a second support plate are fixedly connected to the two sides of the top of the base plate, and a support base is fixedly connected to the top of the first support plate and the second support plate. A photovoltaic panel is arranged between the opposite sides of the two support bases, and a first heat absorption plate is fixedly connected to the surface of the photovoltaic panel. Summary of the Invention

[0004] The purpose of this invention is to address the above-mentioned problems by providing a photovoltaic power generation waste heat recovery device.

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

[0006] A photovoltaic power generation waste heat recovery device includes a photovoltaic panel fixing bracket and a photovoltaic panel. A waste heat absorption box is provided between the photovoltaic panel fixing bracket and the photovoltaic panel. A water storage tank is installed on the top of the waste heat absorption box. A heat-absorbing water-holding chamber is provided inside the waste heat absorption box. A high-velocity channel is provided between the heat-absorbing water-holding chamber and the water storage tank. A power recovery structure is provided inside the high-velocity channel. An insulation structure is provided around the water storage tank. A suction component is provided on the back of the waste heat absorption box for drawing heat from the heat-absorbing water-holding chamber into the insulation structure. A shielding component for opening or closing the opening of the high-velocity channel and an energy storage drive component for driving the shielding component to rotate are provided inside the water storage tank. The energy storage drive component is electrically connected to the power recovery structure.

[0007] In the aforementioned photovoltaic power generation waste heat recovery device, the power recovery structure includes a rotating roller disposed in a high-flow-rate channel, the rotating roller being provided with a plurality of fan blades arranged in a circular array along the center point of the rotating roller, and a generator and gear being fixed at the end of the rotating roller, the generator being electrically connected to an energy storage drive component.

[0008] In the aforementioned photovoltaic power generation waste heat recovery device, the high flow rate channel is provided with guide steps for guiding water flow to the fan blades.

[0009] In the aforementioned photovoltaic power generation waste heat recovery device, the shading component includes a shading rotating plate disposed in a water storage tank. The shading rotating plate is slidably engaged with the inner wall of the water storage tank. A rotating plate positioning component is provided inside the water storage tank, and the shading rotating plate is slidably engaged with the rotating plate positioning component.

[0010] In the aforementioned photovoltaic power generation waste heat recovery device, the rotating plate positioning component includes a rotating plate positioning pressure frame disposed in a water storage tank, the shielding rotating plate is slidably engaged with the rotating plate positioning pressure frame, and a rotating plate locking seat is provided in the water storage tank, the shielding rotating plate being locked with the rotating plate locking seat.

[0011] In the aforementioned photovoltaic power generation waste heat recovery device, the energy storage drive component includes an energy storage motor disposed at the end of a water storage tank, a turntable connected to the power shaft of the energy storage motor, the turntable being connected to a shading plate, and the energy storage motor being electrically connected to a generator.

[0012] In the aforementioned photovoltaic power generation waste heat recovery device, the insulation structure includes an insulation shell disposed around the water storage tank, and an insulation chamber is provided inside the insulation shell.

[0013] In the aforementioned photovoltaic power generation waste heat recovery device, the suction component includes a heat extraction fan disposed on the back of the waste heat absorption box, and the heat extraction fan is connected to the heat preservation chamber via an air pipe.

[0014] In the aforementioned photovoltaic power generation waste heat recovery device, an exhaust channel is provided between the waste heat absorption box and the heat extraction fan, and two sealing plates that can move closer or further apart are provided in the exhaust channel.

[0015] In the aforementioned photovoltaic power generation waste heat recovery device, the waste heat absorption box is equipped with a linear actuator for driving the sealing plate to perform linear reciprocating motion.

[0016] Compared with existing technologies, the advantages of this utility model are:

[0017] 1. In use, this utility model generates photovoltaic power through photovoltaic panels. When the temperature of the photovoltaic panels rises, the heat enters the waste heat absorption box. The hot air is drawn to the insulation structure around the water storage tank by the suction component. The insulation structure keeps the water in the water storage tank warm. The shielding component is removed, thereby opening the opening between the heat absorption water chamber and the high flow rate channel, allowing water to flow into the heat absorption water chamber. The water is then heated by the subsequent waste heat. As the water flows, it simultaneously drives the power recovery structure to rotate, thereby generating hydroelectric power. The generated electricity is input to the energy storage drive component, which is used to drive the shielding component automatically. This process of recycling waste heat and water power saves energy and reduces emissions. The waste heat can be used for both insulation and water heating, making it a multi-purpose and highly practical solution.

[0018] 2. The guide step in this utility model can accurately deliver water flow to the fan blades to drive the fan blades to rotate.

[0019] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model.

[0021] Figure 2 This is a schematic diagram of the energy storage drive component.

[0022] Figure 3 yes Figure 1 Enlarged diagram of point A in the middle.

[0023] In the diagram: 1. Photovoltaic panel fixing bracket; 2. Photovoltaic panel; 3. Waste heat absorption box; 4. Water storage tank; 5. Heat absorption and water holding chamber; 6. High flow rate channel; 7. Power recovery structure; 8. Insulation structure; 9. Shading component; 10. Energy storage drive assembly; 11. Rotating roller; 12. Fan blade; 13. Guide step; 14. Shading rotating plate; 15. Rotating plate positioning component; 16. Rotating plate positioning pressure frame; 17. Rotating plate clamping seat; 18. Energy storage motor; 19. Turntable; 20. Insulation shell; 21. Insulation chamber; 22. Heat extraction fan; 23. Air pipe; 24. Air extraction channel; 25. Sealing plate; 26. Linear actuator. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings.

[0025] like Figure 1-3 As shown, a photovoltaic power generation waste heat recovery device includes a photovoltaic panel fixing bracket 1 and a photovoltaic panel 2. A waste heat absorption box 3 is provided between the photovoltaic panel fixing bracket 1 and the photovoltaic panel 2. A water storage tank 4 is installed on the top of the waste heat absorption box 3. A heat absorption water holding chamber 5 is provided inside the waste heat absorption box 3. A high flow rate channel 6 is provided between the heat absorption water holding chamber 5 and the water storage tank 4. A power recovery structure 7 is provided inside the high flow rate channel 6. An insulation structure 8 is provided around the water storage tank 4. A suction component is provided on the back of the waste heat absorption box 3 for drawing heat from the heat absorption water holding chamber 5 into the insulation structure 8. A shielding component 9 for opening or closing the opening of the high flow rate channel 6 and an energy storage drive component 10 for driving the shielding component 9 to rotate are provided inside the water storage tank 4. The energy storage drive component 10 is electrically connected to the power recovery structure 7.

[0026] In this embodiment, photovoltaic power generation is achieved through photovoltaic panel 2 during use. When the temperature of photovoltaic panel 2 rises, the heat enters the waste heat absorption box 3. The hot air can be drawn to the insulation structure 8 around the water storage tank 4 by the suction component. The insulation structure 8 keeps the water in the water storage tank 4 warm. The shielding component 9 is removed, thereby opening the opening between the heat absorption water chamber 5 and the high flow rate channel 6, allowing water to flow into the heat absorption water chamber 5. The water is then heated by the subsequent waste heat. When the water flows, it will simultaneously drive the power recovery structure 7 to rotate, thereby generating hydroelectric power. The generated electricity is input to the energy storage drive component 10. The energy storage drive component 10 is used to drive the shielding component 9 to automatically and cyclically utilize waste heat and hydroelectric power, saving energy and reducing emissions. The waste heat can be used for insulation on one hand and for heating water on the other, making it a multi-purpose and highly practical resource.

[0027] Combination Figure 1-3 As shown, the power recovery structure 7 includes a rotating roller 11 disposed in the high flow rate channel 6. The rotating roller 11 is provided with a plurality of fan blades 12 arranged in a ring array along the center point of the rotating roller 11. A generator and a gear are fixed at the end of the rotating roller 11. The generator is electrically connected to the energy storage drive component 10.

[0028] Specifically, when water in the water storage tank 4 flows into the high-velocity channel 6, it will drive the fan blades 12 and the rotating roller 11 to rotate, thereby driving the gear to rotate synchronously. After the gear rotates, it generates induced electricity in the coil, which is input into the generator to generate electricity. The electricity is then input into the energy storage drive component 10 as a backup or emergency power source. Those skilled in the art should understand that the power generation mechanism here is similar to a hand-cranked generator. The internal structure and working principle of the generator are not the focus of this patent, so they will not be described in detail here.

[0029] Combination Figure 1 As shown, the high-velocity channel 6 is provided with a guide step 13 for guiding the water flow to the fan blade 12.

[0030] In this embodiment, the guide step 13 can accurately deliver water flow to the fan blade 12 to drive the fan blade 12 to rotate.

[0031] The shielding component 9 includes a shielding rotating plate 14 disposed inside the water storage tank 4. The shielding rotating plate 14 is slidably engaged with the inner wall of the water storage tank 4. A rotating plate positioning component 15 is provided inside the water storage tank 4. The shielding rotating plate 14 is slidably engaged with the rotating plate positioning component 15.

[0032] In this embodiment, when hot water is needed, the shielding rotating plate 14 is moved away, opening the opening between the heat absorption water chamber 5 and the high flow rate channel 6. The rotating plate positioning component 15 can limit the position of the shielding rotating plate 14, preventing the shielding rotating plate 14 from shifting position.

[0033] Combination Figure 2 As shown, the rotating plate positioning component 15 includes a rotating plate positioning pressure frame 16 disposed in the water storage tank 4, the shielding rotating plate 14 is slidably engaged with the rotating plate positioning pressure frame 16, and the water storage tank 4 is provided with a rotating plate locking seat 17, the shielding rotating plate 14 is locked with the rotating plate locking seat 17.

[0034] In this embodiment, during the sliding process of the shielding rotating plate 14, the shielding rotating plate 14 and the rotating plate positioning pressure frame 16 slide together. The rotating plate positioning pressure frame 16 can limit the position of the shielding rotating plate 14 to prevent the shielding rotating plate 14 from shifting. The rotating plate snap-fit ​​seat 17 can snap-fit ​​and fix the shielding rotating plate 14, which has good stability and sealing.

[0035] The energy storage drive assembly 10 includes an energy storage motor 18 disposed at the end of the water storage tank 4. A turntable 19 is connected to the power shaft of the energy storage motor 18. The turntable 19 is connected to the shielding plate 14. The energy storage motor 18 is electrically connected to the generator.

[0036] In this embodiment, when the shielding rotating plate 14 needs to be moved, the energy storage motor 18 is started. The power shaft of the energy storage motor 18 drives the turntable 19 and the shielding rotating plate 14 to rotate synchronously. The degree of automation is high. The energy storage motor 18 is electrically connected to the generator, and the generated electricity can be input into the energy storage motor 18 for energy storage.

[0037] The heat preservation structure 8 includes a heat preservation shell 20 disposed around the water storage tank 4, and a heat preservation chamber 21 disposed inside the heat preservation shell 20. The suction component includes a heat extraction fan 22 disposed on the back of the waste heat absorption box 3, and the heat extraction fan 22 is connected to the heat preservation chamber 21 through an air pipe 23.

[0038] In this embodiment, when the temperature of the photovoltaic panel 2 rises, the heat will enter the waste heat absorption box 3. The hot air can be drawn to the heat insulation chamber 21 outside the water storage tank 4 by the heat extraction fan 22, and the water in the water storage tank 4 will be kept warm by the heat insulation chamber 21.

[0039] Combination Figure 1 , Figure 3 As shown, an exhaust channel 24 is provided between the waste heat absorption box 3 and the heat extraction fan 22. The exhaust channel 24 is provided with two sealing plates 25 that can move closer or further apart from each other. The waste heat absorption box 3 is provided with a linear actuator 26 for driving the sealing plates 25 to perform linear reciprocating motion.

[0040] In this embodiment, when heat extraction and heat preservation are required, the linear actuator 26 is activated, which drives the two sealing plates 25 to separate and extract the residual heat.

[0041] The working principle of this utility model is as follows:

[0042] During operation, photovoltaic power generation is achieved through photovoltaic panels 2. When the temperature of photovoltaic panels 2 rises, the heat enters the waste heat absorption box 3. The hot air is drawn to the insulation chamber 21 surrounding the water storage tank 4 by the heat extraction fan 22. The insulation chamber 21 keeps the water in the water storage tank 4 warm. The shielding plate 14 is removed, opening the opening between the heat absorption water chamber 5 and the high-flow-rate channel 6, allowing water to flow into the heat absorption water chamber 5. The water is then heated by the subsequent waste heat. When the water in the water storage tank 4 flows into the high-flow-rate channel 6, it drives the fan blades 12 and the rotating roller 11 to rotate, thereby driving the gears to rotate synchronously. The rotation of the gears generates induced electricity in the coil, which is input into the generator to generate electricity. The electricity is then input into the energy storage motor 18 as a backup or emergency power source.

[0043] The guide step 13 can precisely deliver the water flow to the fan blade 12 to drive the fan blade 12 to rotate.

[0044] During the sliding process of the shielding rotating plate 14, the shielding rotating plate 14 slides in conjunction with the rotating plate positioning pressure frame 16. The rotating plate positioning pressure frame 16 can limit the position of the shielding rotating plate 14 to prevent the shielding rotating plate 14 from shifting. The rotating plate locking seat 17 can lock and fix the shielding rotating plate 14, which has good stability and sealing performance.

[0045] When the shielding rotating plate 14 needs to be moved, the energy storage motor 18 is started. The power shaft of the energy storage motor 18 drives the turntable 19 and the shielding rotating plate 14 to rotate synchronously. The automation level is high. The energy storage motor 18 is electrically connected to the generator, so the generated electricity can be input into the energy storage motor 18 for energy storage.

[0046] When the temperature of the photovoltaic panel 2 rises, the heat will enter the waste heat absorption box 3. When heat extraction and insulation are required, the linear actuator 26 is activated, which drives the two sealing plates 25 to separate and extract the waste heat.

[0047] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of this utility model.

[0048] Although this document frequently uses terms such as photovoltaic panel fixing bracket 1, photovoltaic panel 2, waste heat absorption box 3, water storage tank 4, heat absorption water chamber 5, high flow rate channel 6, power recovery structure 7, insulation structure 8, shading component 9, energy storage drive assembly 10, rotating roller 11, fan blade 12, guide step 13, shading rotating plate 14, rotating plate positioning component 15, rotating plate positioning pressure frame 16, rotating plate clamping seat 17, energy storage motor 18, turntable 19, insulation shell 20, insulation chamber 21, heat extraction fan 22, air pipe 23, air extraction channel 24, sealing plate 25, linear actuator 26, etc., the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A photovoltaic electricity generation waste heat recovery device comprising a photovoltaic panel fixing support (1) and a photovoltaic panel (2), characterized in that, The photovoltaic panel fixed support (1) and photovoltaic panel (2) are provided with a waste heat absorption box (3), the top of the waste heat absorption box (3) is provided with a water storage tank (4), the waste heat absorption box (3) is provided with a heat absorption water chamber (5), the heat absorption water chamber (5) and the water storage tank (4) are provided with a large flow channel (6), the large flow channel (6) is provided with a power recovery structure (7), the periphery of the water storage tank (4) is provided with a heat preservation structure (8), the back of the waste heat absorption box (3) is provided with a suction element for sucking the heat in the heat absorption water chamber (5) into the heat preservation structure (8), the water storage tank (4) is provided with a shielding element (9) for opening or closing the opening of the large flow channel (6) and a energy storage driving assembly (10) for driving the shielding element (9) to rotate, and the energy storage driving assembly (10) is electrically connected with the power recovery structure (7).

2. A photovoltaic electricity generation waste heat recovery device according to claim 1, characterized in that, The power recovery structure (7) comprises a rotating roller (11) arranged in the large flow channel (6), a plurality of fan blades (12) are arranged on the rotating roller (11) and arranged in an annular array around the center point of the rotating roller (11), and a generator and a gear are fixed to the end of the rotating roller (11).

3. A photovoltaic electricity generation waste heat recovery device according to claim 2, characterized in that, The large flow channel (6) is provided with a guide step (13) for guiding water flow to the fan blades (12).

4. A photovoltaic electricity generation waste heat recovery device according to claim 3, characterized in that, The shielding element (9) comprises a shielding rotating plate (14) arranged in the water storage tank (4), the shielding rotating plate (14) is in sliding fit with the inner wall of the water storage tank (4), the water storage tank (4) is provided with a rotating plate positioning element (15), and the shielding rotating plate (14) is in sliding fit with the rotating plate positioning element (15).

5. A photovoltaic electricity generation waste heat recovery device according to claim 4, wherein, The rotating plate positioning element (15) comprises a rotating plate positioning pressing frame (16) arranged in the water storage tank (4), the shielding rotating plate (14) is in sliding fit with the rotating plate positioning pressing frame (16), the water storage tank (4) is provided with a rotating plate clamping seat (17), and the shielding rotating plate (14) is in clamping fit with the rotating plate clamping seat (17).

6. A photovoltaic electricity generation waste heat recovery device according to claim 5, wherein, The energy storage driving assembly (10) comprises an energy storage motor (18) arranged at the end of the water storage tank (4), a rotating disc (19) is connected to the power shaft of the energy storage motor (18), the rotating disc (19) is connected with the shielding rotating plate (14), and the energy storage motor (18) is electrically connected with the generator.

7. A photovoltaic electricity generation waste heat recovery device according to claim 6, wherein, The heat preservation structure (8) comprises a heat preservation shell (20) arranged on the periphery of the water storage tank (4), and the heat preservation shell (20) is provided with a heat preservation chamber (21).

8. A photovoltaic electricity generation waste heat recovery device according to claim 7, characterized in that, The suction element comprises a hot air suction fan (22) arranged on the back of the waste heat absorption box (3), and the hot air suction fan (22) is connected with the heat preservation chamber (21) through an air pipe (23).

9. A photovoltaic electricity generation waste heat recovery device according to claim 8, wherein, The waste heat absorption box (3) and the hot air suction fan (22) are provided with an air suction channel (24), and the air suction channel (24) is provided with two sealing plates (25) which can move close to or away from each other.

10. A photovoltaic electricity generation waste heat recovery device according to claim 9, wherein, The waste heat absorption box (3) is provided with a linear actuator (26) for driving the sealing plates (25) to move linearly and reciprocally.

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