Heat recycling device for photovoltaic module

Abstract

The utility model belongs to the field of photovoltaic technology, and particularly relates to a heat recycling device for a photovoltaic module, which comprises a support assembly, a heat collection assembly, a heat conversion assembly and a water storage assembly, a water inlet cavity, a heat transfer cavity and a water outlet cavity which are sequentially connected are fixedly arranged in the heat conversion assembly, and a plurality of heat conducting fins are fixedly arranged in the heat transfer cavity. A water inlet baffle is fixedly arranged at the communication position of the water inlet cavity and the heat transfer cavity, a plurality of water inlet and distribution holes corresponding to gaps of the heat conduction pieces in position are formed in the water inlet baffle, and a water outlet baffle is fixedly arranged at the communication position of the water outlet cavity and the heat transfer cavity. And the water outlet baffle is provided with a plurality of water outlet distribution holes corresponding to the gaps of the heat-conducting fins in position. According to the utility model, the photovoltaic module is cooled, the conversion efficiency of the photovoltaic module is improved, redundant heat is recycled and stored, the heat recovery efficiency is high, and the heat radiation and heat recovery device is suitable for heat radiation and heat recovery of the photovoltaic module.

Description

Technical Field

[0001] This utility model belongs to the field of photovoltaic technology, specifically a heat recovery and utilization device for photovoltaic modules. Background Technology

[0002] With the rapid development of global clean energy technologies, photovoltaic power generation, as an important form of renewable energy utilization, has seen its industry scale continuously expand. However, traditional photovoltaic modules suffer from significant energy loss during the photoelectric conversion process. Studies have shown that when solar radiation intensity reaches 1000 W / m², only about 15-20% of solar energy is converted into electrical energy, with the majority of the remaining energy accumulating as heat on the cell surface. This leads to two prominent problems: firstly, for every 1°C increase in photovoltaic cell temperature, its conversion efficiency decreases by 0.4-0.5%, and in high-temperature summer environments, the efficiency loss can reach over 10%; secondly, unused heat energy is directly dissipated into the environment, resulting in enormous energy waste.

[0003] Existing technologies primarily address these issues through two methods: passive cooling and active cooling. Passive cooling technologies, such as installing heat sink fins or employing natural convection structures, and active cooling technologies, such as forced air cooling, both focus on heat dissipation and fail to recover and utilize excess heat. Utility Model Content

[0004] To address the aforementioned shortcomings in the existing technology, this utility model aims to provide a heat recovery and utilization device for photovoltaic modules, so as to both prevent the photovoltaic modules from overheating and recover and utilize excess heat.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a heat recovery and utilization device for photovoltaic modules, comprising...

[0006] Support components: including a heating element support frame for supporting photovoltaic modules, and a device support frame for supporting this device;

[0007] Heat collection assembly: includes a heat pipe, one end of which is fixed to the heating element support frame, and the other end extends into the heat conversion assembly;

[0008] Heat conversion assembly: fixed on the device support frame, including a conversion box, in which a water inlet chamber, a heat transfer chamber and a water outlet chamber are fixedly connected in sequence. Several heat-conducting plates with gaps are fixedly installed in the heat transfer chamber. The other end of the heat-conducting pipe extends to connect with the heat-conducting plates. A water inlet baffle is fixedly installed at the connection between the water inlet chamber and the heat transfer chamber. Several water inlet distribution holes corresponding to the gaps of the heat-conducting plates are opened on the water inlet baffle. A water outlet baffle is fixedly installed at the connection between the water outlet chamber and the heat transfer chamber. Several water outlet distribution holes corresponding to the gaps of the heat-conducting plates are opened on the water outlet baffle.

[0009] Water storage assembly: fixed on the device support frame, including an inlet tank connected to the inlet chamber and an outlet tank connected to the outlet chamber.

[0010] As a limitation of this utility model: the water inlet chamber and the water outlet chamber are respectively fixed on opposite sides of the heat transfer chamber, and the height of the water outlet chamber is higher than that of the water inlet chamber.

[0011] As a limitation of this utility model: the water inlet cavity, heat transfer cavity, and water outlet cavity are all cubic structures, which are opened in the conversion box by removing material. The heat-conducting plate is rectangular, and its edge extends to the inner wall of the heat transfer cavity. One side wall of the water inlet cavity is connected to the heat transfer cavity. The water inlet baffle is fixed at the connection between the water inlet cavity and the heat transfer cavity, and the water inlet baffle is perpendicular to the heat-conducting plate. One side wall of the water outlet cavity is connected to the heat transfer cavity. The water outlet baffle is fixed at the connection between the water outlet cavity and the heat transfer cavity, and the water outlet baffle is perpendicular to the heat-conducting plate.

[0012] As a limitation of this utility model: the other end of the heat pipe extends into the heat transfer cavity and penetrates all the heat-conducting plates.

[0013] As a limitation of this utility model: the heat pipe includes a plurality of vertical heat pipes fixed on the heating element support frame for attaching photovoltaic modules, and also includes a horizontal heat pipe connected to the vertical heat pipes, the end of the horizontal heat pipe extending into the heat transfer cavity and penetrating all the heat-conducting sheets.

[0014] As a limitation of this utility model: the vertical heat pipes are arranged parallel to the photovoltaic module and in a serpentine pattern.

[0015] As a limitation of this utility model, multiple horizontal heat pipes are provided.

[0016] As a limitation of this utility model: the water inlet tank is located above the conversion tank, and the water outlet tank is located below the conversion tank.

[0017] As a limitation of this utility model: the water inlet tank is provided with a water inlet, and the water outlet tank is provided with a water outlet valve through and fixedly installed.

[0018] As a limitation of this utility model: a water pump is provided on the connecting pipe between the water outlet chamber and the water outlet tank.

[0019] By adopting the above technical solution, the beneficial effects achieved by this utility model compared with the prior art are as follows:

[0020] (1) This utility model transfers the heat generated by the photovoltaic module to the conversion box in the heat conversion component through the heat pipe, so that the cold water flows between the gaps of the heat-conducting sheet, absorbs the heat and rises in temperature, and recovers the heat of the photovoltaic panel irradiated by the sun. This not only cools down the photovoltaic module and improves the conversion efficiency of the photovoltaic module, but also recovers and utilizes the excess heat and stores the heat.

[0021] (2) By setting up components such as an inlet tank, an outlet tank and an outlet valve, this utility model can control the opening and closing of the water flow and the discharge of hot water. The outlet tank is set below the inlet tank and the water pump is fixedly set above the outlet tank, so that the water flow can fully contact the heat-conducting plate, which improves the efficiency of heat recovery and is also easy to operate and control.

[0022] In summary, this invention not only cools down photovoltaic modules and improves their conversion efficiency, but also recovers and stores excess heat with high heat recovery efficiency, making it suitable for heat dissipation and heat recovery in photovoltaic modules. Attached Figure Description

[0023] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0024] Figure 1 Three-dimensional representation of the present utility model Figure 1 ;

[0025] Figure 2 Three-dimensional representation of the present utility model Figure 2 ;

[0026] Figure 3 This is a schematic diagram of the heat pipe structure in an embodiment of this utility model;

[0027] Figure 4 This is a schematic diagram of the internal structure of the heat conversion component in an embodiment of the present invention. Figure 1 ;

[0028] Figure 5 This is a schematic diagram of the internal structure of the heat conversion component in an embodiment of the present invention. Figure 2 ;

[0029] Figure 6 This is a schematic diagram of the structure of the heat pipe and heat plate in an embodiment of this utility model;

[0030] Figure 7 This is a schematic diagram of the internal structure of the heat conversion component in an embodiment of the present invention. Figure 3 ;

[0031] Figure 8 This is a schematic diagram of the internal structure of the heat conversion component in an embodiment of the present invention. Figure 4 .

[0032] In the diagram: 1 - Photovoltaic panel;

[0033] 2-Supporting component, 21-Heating element support frame, 22-Device support frame;

[0034] 3-Heat pipe, 31-Vertical heat pipe, 32-Horizontal heat pipe;

[0035] 4-Conversion box, 41-Water inlet chamber, 42-Heat transfer chamber, 43-Water outlet chamber, 44-Heat conduction plate, 45-Water inlet baffle, 46-Water inlet distribution hole, 47-Water outlet baffle, 48-Water outlet distribution hole;

[0036] 5-Water storage components, 51-Inlet tank, 52-Outlet tank, 53-Outlet valve, 54-Water pump. Detailed Implementation

[0037] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the heat recovery and utilization device for photovoltaic modules described herein is a preferred embodiment and is only used for illustration and explanation of the present invention, and does not constitute a limitation thereof.

[0038] The directional terms or positional relationships used in this utility model, such as "up," "down," "left," and "right," are based on the positional relationships in the accompanying drawings of this utility model. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component must have a specific orientation, or that it must be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the content protected by this utility model.

[0039] This implementation example Figures 1 to 8 As shown, a heat recovery and utilization device for photovoltaic modules includes a support component 2, a heat collection component, a heat conversion component, and a water storage component 5.

[0040] like Figure 1 , Figure 2 As shown, the support assembly 2 includes a heating element support frame 21 for supporting the photovoltaic module and a device support frame 22 for supporting the device. The heating element support frame 21 is inclined and used to fix the photovoltaic module. In this embodiment, the photovoltaic module mainly refers to the photovoltaic panel 1. This embodiment can be used for any photovoltaic panel 1 that requires photovoltaic module heat recovery. This embodiment does not limit the specific type of photovoltaic module. The structure of the photovoltaic module is existing technology, and this embodiment only uses it without improving it. The device support frame 22 is fixedly connected to the rear side of the heating element support frame 21 (i.e., the side away from sunlight). The device support frame 22 is used to support the heat conversion component and the water storage component 5.

[0041] The heat collection assembly includes a heat pipe 3. In this embodiment, the heat pipe 3 is a copper circular tube. In other embodiments, the heat pipe 3 can also be made of other materials with high thermal conductivity. The heat pipe 3 includes several vertical heat pipes 31 fixed to the heating element support frame 21 for attaching to the photovoltaic module. Specifically, for example... Figure 3 As shown, the vertical heat pipe 31 is tightly fixed to the rear side of the photovoltaic panel 1. The vertical heat pipe 31 is arranged parallel to the photovoltaic module and in a serpentine pattern to absorb the heat generated by the photovoltaic panel 1 during operation. Figures 4-8 As shown, the heat pipe 3 also includes horizontal heat pipes 32 connected to the vertical heat pipe 31. Multiple horizontal heat pipes 32 are provided in both the width and height directions. The ends of the horizontal heat pipes 32 extend into the heat conversion assembly, transferring heat to the heat conversion assembly. Furthermore, to improve the structural strength of the heat pipe 3, different horizontal heat pipes 32 can be connected by heat pipes 3 arranged in the vertical direction.

[0042] The heat conversion assembly is fixed in the device support frame 22, including a conversion chamber 4. The conversion chamber 4 contains a water inlet chamber 41, a heat transfer chamber 42, and a water outlet chamber 43, which are sequentially connected. The water inlet chamber 41, heat transfer chamber 42, and water outlet chamber 43 are all cubic structures, formed within the conversion chamber 4 by removing material. Figure 6 As shown, a plurality of parallel rectangular heat-conducting plates 44 with gaps are fixed in the heat transfer cavity 42. In this embodiment, the heat-conducting plates 44 are copper sheets and are arranged perpendicular to the transverse heat-conducting pipe 32. The end of the transverse heat-conducting pipe 32 extends into the heat transfer cavity 42 and passes through all the heat-conducting plates 44. The edges of the heat-conducting plates 44 extend to the inner wall of the heat transfer cavity 42, that is, the entire interior of the heat transfer cavity 42 is filled with heat-conducting plates 44. The water inlet cavity 41 and the water outlet cavity 43 are respectively fixed on opposite sides of the heat transfer cavity 42, and the height of the water outlet cavity 43 is higher than that of the water inlet cavity 41, so that cold water enters from below and hot water flows out from above, allowing the water flow to fully contact the heat-conducting plates 44, prolonging the contact time between the water flow and the heat-conducting plates 44, and making the heat exchange more complete.

[0043] like Figure 4 , Figure 5 As shown, the water inlet cavity 41 is disposed in the heat transfer cavity 42 on the side wall corresponding to the gap of the heat-conducting plate 44, and the height of the water inlet cavity 41 is less than the height of the heat transfer cavity 42. One side wall of the water inlet cavity 41 is in communication with the heat transfer cavity 42. A water inlet baffle 45 is fixed at the connection between the water inlet cavity 41 and the heat transfer cavity 42. The water inlet baffle 45 is perpendicular to the heat-conducting plate 44 and is disposed in close contact with the edge of the heat-conducting plate 44. Several water inlet distribution holes 46 are opened on the water inlet baffle 45, which correspond to the gap positions of the heat-conducting plate 44. In this embodiment, the water inlet distribution holes 46 are arranged in a rectangular row, and each row of water inlet distribution holes 46 corresponds to one gap of the heat-conducting plate 44. Figure 7 , Figure 8As shown, the water outlet cavity 43 is also located in the heat transfer cavity 42, on the side wall corresponding to the gap of the heat-conducting plate 44, and is far from the water inlet cavity 41. The height of the water outlet cavity 43 is less than the height of the heat transfer cavity 42. One side wall of the water outlet cavity 43 is in communication with the heat transfer cavity 42. A water outlet baffle 47 is fixed at the connection between the water outlet cavity 43 and the heat transfer cavity 42. The water outlet baffle 47 is perpendicular to the heat-conducting plate 44 and is fitted to the heat-conducting plate 44. Several water outlet holes 48 are opened on the water outlet baffle 47, corresponding to the gap positions of the heat-conducting plate 44. In this embodiment, the water outlet holes 48 are arranged in a rectangular row, and each row of water outlet holes 48 corresponds to a gap of the heat-conducting plate 44. With this configuration, cold water accumulates after entering the inlet chamber 41, and is more evenly distributed under the action of the inlet water distribution holes 46 on the inlet baffle 45. It is then transported to the heat transfer chamber 42 and enters the gaps of the heat-conducting plates 44 in the heat transfer chamber 42 for heat exchange. At the same time, it rises and converges, flowing towards the outlet chamber 43. Before flowing to the outlet chamber 43, it passes through the outlet baffle 47, and is more evenly distributed under the action of the outlet water distribution holes 48, and finally enters the outlet chamber 43.

[0044] The water storage assembly 5 is fixedly mounted on the device support frame 22. It includes an inlet tank 51 connected to the inlet chamber 41 via a pipe passing through the conversion box 4, and an outlet tank 52 connected to the outlet chamber 43 via a pipe passing through the conversion box 4. It should be noted that the pipe connecting the inlet tank 51 to the inlet chamber 41 is lower than the pipe connecting the outlet tank 52 to the outlet chamber 43. Specifically, the inlet tank 51 is located above the conversion box 4 and has an inlet port (not shown in the figure). The outlet tank 52 is located below the conversion box 4 and has an outlet valve 53 fixedly mounted on it. In this embodiment, both the inlet tank 51 and the outlet tank 52 are made of PVC material, which has good chemical corrosion resistance and can resist the erosion of most acids, alkalis, and salts. PVC material also has good plasticity and can be processed into tanks of different shapes and sizes through various processing methods. Furthermore, a water pump 54 is installed on the connecting pipe between the water outlet chamber 43 and the water outlet tank 52 to control the flow state of the water.

[0045] In this embodiment, the photovoltaic panel 1 absorbs solar heat and transfers it to the vertical heat pipe 31. The vertical heat pipe 31 then transfers the heat to the horizontal heat pipe 32 and the heat-conducting plate 44. The water pump 54 operates to allow water in the inlet tank 51 to flow into the inlet chamber 41, and then enters the gap between the heat-conducting plates 44 through the inlet water distribution hole 46 on the inlet baffle 45. The water comes into full contact with the heat-conducting plates 44, causing the water temperature to rise. Since the hot water is at the bottom and the cold water is at the top, the water with the increased temperature flows from the outlet water distribution hole 48 on the outlet baffle 47 to the outlet chamber 43, and then flows through the pipeline to the outlet tank 52 for storage. Turning the valve allows the hot water to be discharged, making it convenient for users to take hot water as needed. When the cold water level in the inlet tank 51 is low, cold water can be added through the inlet.

[0046] This utility model discloses a heat recovery and utilization device for photovoltaic modules. Through the efficient heat transfer of vertical heat pipe 31 and horizontal heat pipe 32, the solar heat absorbed by the photovoltaic panel 1 is quickly conducted to the heat-conducting sheet 44, making full use of the waste heat generated by the photovoltaic panel 1 during power generation. This not only reduces the temperature of the photovoltaic panel 1 but also avoids heat waste and improves the comprehensive utilization rate of energy. Water in the water inlet tank 51 enters the water inlet chamber 41 under the action of the water pump 54, and then enters the gap between the heat-conducting sheets 44 through the water inlet distribution holes 46 on the water inlet baffle 45, making full contact with the heat-conducting sheets 44. This allows the water to quickly absorb the heat on the heat-conducting sheets 44, further improving the efficiency of heat recovery.

Claims

1. A heat recovery device for a photovoltaic module, comprising: Comprising The support assembly comprises a heat generator support frame for supporting the photovoltaic assembly and a device support frame for supporting the device; The heat collection assembly comprises a heat conduction pipe, one end of which is fixed to the heat generator support frame, and the other end of which extends into the heat conversion assembly; The heat conversion assembly is fixed to the device support frame and comprises a conversion box body, in which an inlet water cavity, a heat transfer cavity and an outlet water cavity are sequentially connected, a plurality of heat conduction fins with slits are fixed in the heat transfer cavity, the other end of the heat conduction pipe extends into the heat transfer cavity and is connected with the heat conduction fins, a water inlet baffle is fixed at the communication part of the inlet water cavity and the heat transfer cavity, a plurality of water inlet distribution holes corresponding to the slit positions of the heat conduction fins are formed on the water inlet baffle, and a water outlet baffle is fixed at the communication part of the outlet water cavity and the heat transfer cavity, a plurality of water outlet distribution holes corresponding to the slit positions of the heat conduction fins are formed on the water outlet baffle; The water storage assembly is fixed to the device support frame and comprises an inlet water tank connected with the inlet water cavity and an outlet water tank connected with the outlet water cavity.

2. The heat recovery device for a photovoltaic module according to claim 1, wherein The inlet water cavity and the outlet water cavity are respectively fixed on opposite sides of the heat transfer cavity, and the height of the outlet water cavity is higher than that of the inlet water cavity.

3. The heat recovery device for a photovoltaic module according to claim 2, wherein The inlet water cavity, the heat transfer cavity and the outlet water cavity are all cubic structures and are formed in the conversion box body by removing materials, the heat conduction fins are rectangular and their edges extend to the inner wall of the heat transfer cavity, one side wall of the inlet water cavity is communicated with the heat transfer cavity, the water inlet baffle is fixed at the communication part of the inlet water cavity and the heat transfer cavity and is perpendicular to the heat conduction fins, one side wall of the outlet water cavity is communicated with the heat transfer cavity, the water outlet baffle is fixed at the communication part of the outlet water cavity and the heat transfer cavity and is perpendicular to the heat conduction fins.

4. The heat recovery device for a photovoltaic module according to any one of claims 1 to 3, characterized in that, The other end of the heat conduction pipe extends into the heat transfer cavity and penetrates all the heat conduction fins.

5. A heat recovery device for a photovoltaic module according to claim 4, wherein, The heat conduction pipe comprises a plurality of vertical heat conduction pipes fixed to the heat generator support frame and used for abutting the photovoltaic assembly, and a horizontal heat conduction pipe connected with the vertical heat conduction pipes, the end of the horizontal heat conduction pipe extends into the heat transfer cavity and penetrates all the heat conduction fins.

6. A heat recovery device for a photovoltaic module according to claim 5, wherein, The vertical heat conduction pipes are parallel to the photovoltaic assembly and arranged in a serpentine shape.

7. A heat recovery device for a photovoltaic module according to claim 6, wherein The horizontal heat conduction pipe is provided with a plurality of.

8. The heat recovery device for a photovoltaic module according to claim 1, wherein The inlet water tank is arranged above the conversion box body, and the outlet water tank is arranged below the conversion box body.

9. A heat recovery device for a photovoltaic module according to claim 8, wherein, A water inlet is formed on the inlet water tank, and a water outlet valve is fixed on the outlet water tank.

10. The heat recovery device for a photovoltaic module according to claim 9, wherein A water pump is arranged on the connecting pipeline between the outlet water cavity and the outlet water tank.

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