A heat dissipation device for floating photovoltaic panels and its usage method

Abstract

The present invention provides a heat dissipation device for a floating photovoltaic panel and a method of use, belonging to the technical field of photovoltaic panel heat dissipation, to solve the problems in the prior art that using natural wind to cool the photovoltaic panel is neither economical nor increases the ambient temperature along the shore; it includes a foundation pile and a photovoltaic panel arranged above the foundation pile; a cavity is arranged inside the side wall of the foundation pile; a packaging shell is arranged at the bottom of the photovoltaic panel, and a plurality of heat pipes are arranged inside the packaging shell. One end of the heat pipe penetrates out of the packaging shell and is connected to a header tank. There is a dielectric liquid in the header tank, and the two ends of the header tank are respectively communicated with a first return pipe and a second return pipe. The ends of the first return pipe and the second return pipe far away from the header tank are respectively communicated with the cavity of the foundation pile, and a ground heat source pump is arranged on the first return pipe. In the present invention, through the arranged heat pipes, header tank, first return pipe, second return pipe and cavity, the cooling of the photovoltaic panel can be realized, and at the same time, the heat of the photovoltaic panel can be transferred to the surrounding soil for storage.

Description

Technical Field

[0001] The present invention belongs to the technical field of photovoltaic panel heat dissipation, and particularly relates to a heat dissipation device for a floating photovoltaic panel and a usage method thereof. Background Art

[0002] In recent years, photovoltaic power generation technology has become increasingly mature. In addition to ground photovoltaic power generation technology, China is also exploring floating photovoltaic power generation technology. Compared with building a photovoltaic power station on land, building a power station on water can obtain a vast construction space, save land resources, and prevent water evaporation, which can hinder the growth of algae in water. In the middle and lower reaches of the Yangtze River, rivers and lakes are widely distributed, and the method of fixing the power station with pile foundations can be adopted, that is, the pile foundations are fixed underwater, and a photovoltaic support system is installed at the pile heads, forming an integrated development model of power generation above and fish farming below.

[0003] Studies have shown that during the use of solar photovoltaic panels, when the temperature of the photovoltaic panels exceeds 10°C, for every 1°C increase in the temperature of the photovoltaic panels, the output power of their photoelectric conversion decreases by about 0.4%. When the temperature is too high, the aging rate of the photovoltaic panels will be accelerated. Therefore, it is necessary to adopt an efficient heat dissipation technology to cool the photovoltaic panels, such as phase change materials, heat pipes, etc. Considering the cooling cost, natural wind cooling is generally adopted, which is neither economical nor increases the ambient temperature along the shore. Summary of the Invention

[0004] In view of this, the present invention provides a heat dissipation device for a floating photovoltaic panel and a usage method thereof to solve the problems in the prior art that natural wind is used to cool the photovoltaic panels, which is neither economical nor increases the ambient temperature along the shore.

[0005] The technical solution adopted by the present invention is as follows:

[0006] A heat dissipation device for a floating photovoltaic panel includes a foundation pile and a photovoltaic panel arranged above the foundation pile;

[0007] A cavity is arranged inside the side wall of the foundation pile;

[0008] A packaging shell is arranged at the bottom of the photovoltaic panel. A plurality of heat pipes are arranged inside the packaging shell. One end of each heat pipe penetrates out of the packaging shell and is connected to a header tank. A medium liquid is arranged inside the header tank. The two ends of the header tank are respectively communicated with a first return pipe and a second return pipe. The ends of the first return pipe and the second return pipe far away from the header tank are respectively communicated with the cavity of the foundation pile, and a ground heat source pump is arranged on the first return pipe.

[0009] In this technical solution, it should be noted that there are multiple foundation piles, and the cavities of two adjacent foundation piles are connected by a connecting pipe. Both ends of the heat pipe are of a closed structure, and heat transfer is carried out between it and the medium liquid in the header through contact between walls. In this solution, during the non-heating season, the photovoltaic panel absorbs the heat of the sun and transfers the temperature to the encapsulation housing on the back. The encapsulation housing transfers the heat to the heat pipe, and the heat pipe transfers the heat to the medium liquid in the header through the way of wall-to-wall heat exchange. The medium liquid circulates in the header, the first loop pipe, the cavity and the second loop pipe under the action of the ground source heat pump, and transfers the heat to the surrounding soil through the cavity during the flowing process. To sum up, through the heat pipe, the header, the first loop pipe, the second loop pipe and the cavity provided by the present invention, the cooling of the photovoltaic panel can be realized, and at the same time, the heat of the photovoltaic panel can be transferred to the surrounding soil for storage and extracted during the winter heating season to realize cross-season heat storage. And because the fixed power station on the water-based pile foundation needs to drive more piles, the cost is high and it is not easy to construct. Therefore, by setting cavities in the foundation piles to form the form of energy piles, the construction cost can be reduced.

[0010] Preferably, a lifting cylinder is sleeved on the foundation pile, the photovoltaic panel is fixedly connected with the lifting cylinder through a bracket, a floating cylinder is fixedly sleeved on the side wall of the lifting cylinder, and both the first loop pipe and the second loop pipe are flexible hoses.

[0011] In this technical solution, it should be noted that in general lakes, the water level may rise. If the water level rises too much, the photovoltaic panel may be submerged, resulting in damage to the photovoltaic panel due to immersion. Based on this, the present invention is provided with a floating cylinder and a lifting cylinder. The floating cylinder can adaptively drive the lifting cylinder and the photovoltaic panel to rise and fall with the rise and fall of the lake water level, and the photovoltaic panel will not be submerged. Moreover, both the first loop pipe and the second loop pipe are telescopic flexible hoses and can extend or contract with the rise and fall of the photovoltaic panel.

[0012] Preferably, a phase change material is filled in the encapsulation housing, and the phase change material wraps the heat pipe.

[0013] In this technical solution, it should be noted that by setting the phase change material, the temperature of the photovoltaic panel can be maintained in a suitable range and the temperature of the backplane can be ensured to be uniform.

[0014] Preferably, a heat conduction pipe is connected to the second loop pipe, and a first valve for opening and closing the second loop pipe and the heat conduction pipe is provided at the connection of the heat conduction pipe and the second loop pipe.

[0015] Preferably, a heat transfer pipe is provided on one side of the foundation pile. One end of the heat transfer pipe is connected to the first loop pipe, and the other end is connected to the second loop pipe. A second valve for opening and closing the first loop pipe and the heat transfer pipe is provided at the connection of the heat transfer pipe and the first loop pipe, and a third valve for opening and closing the second loop pipe and the heat transfer pipe is provided at the connection of the heat transfer pipe and the second loop pipe.

[0016] In this technical solution, it should be noted that in the non-heating season, the heat conduction pipe is closed through the first valve, one end of the second loop pipe is opened, one end of the heat transfer pipe is closed through the third valve, the other end of the second loop pipe is opened, the other end of the heat transfer pipe is closed through the second valve, and the first loop pipe is opened; the photovoltaic panel absorbs the heat of the sun, transfers the temperature to the encapsulation housing on the back, the encapsulation housing transfers the heat to the heat pipe through the phase change material, and the heat pipe transfers the heat to the medium liquid in the header through the way of wall heat exchange. The medium liquid circulates in the header, the first loop pipe, the cavity and the second loop pipe under the action of the ground source heat pump, and transfers the heat to the surrounding soil through the cavity during the flowing process;

[0017] In the season when heating is required, the heat conduction pipe is opened through the first valve, one end of the second loop pipe is closed, the other end of the second loop pipe is opened through the third valve, one end of the heat transfer pipe is closed, and the first loop pipe is closed through the second valve; after the medium liquid in the cavity absorbs the heat of the surrounding soil, it flows into the building heat network through the heat conduction pipe under the pressure of the ground source heat pump for residents to use. After the medium liquid releases heat, it enters the cavity of the foundation pile again through the external pipeline.

[0018] Preferably, a water pump is provided on one side of the heat transfer pipe.

[0019] In this technical solution, it should be noted that the provided water pump is used to increase the fluidity of the surrounding water source and improve the heat exchange effect.

[0020] Preferably, a dust scraping strip is slidably connected to the surface of the photovoltaic panel. One end of the dust scraping strip is rotatably connected to the header through a rotating shaft. The rotating shaft is vertically arranged, and a driving device for driving the rotating shaft to rotate is further provided on the header. One end of the rotating shaft penetrates into the header. The driving device includes a fan blade. The fan blade is arranged on the rotating shaft along the radial direction of the rotating shaft, and the fan blade is located inside the header.

[0021] In this technical solution, it should be noted that after the solar panel is used for a long time, the dust in the air and the feces of flying birds will adhere to the surface of the photovoltaic panel. The adhesion of these impurities will block the incidence of sunlight, reduce the light absorption capacity of the photovoltaic module, and thus lead to a decrease in the power generation efficiency. Based on this, a dust scraping strip and a driving device are provided in this solution. When the medium liquid passes through the linkage box, the medium liquid will impact the fan blade, so that the fan blade can rotate under the drive of the medium liquid. After the fan blade rotates, it drives the rotating shaft to rotate, and then drives the dust scraping strip on the rotating shaft to rotate. During the rotation of the dust scraping strip, the dust on the surface of the photovoltaic panel is swept out, improving the power generation efficiency of the photovoltaic panel; further, in this solution, the length of the dust scraping strip is greater than the diagonal length of the photovoltaic panel, so that the dust scraping strip can cover the entire photovoltaic panel during the rotation process.

[0022] Preferably, a tension spring is provided at the top of the header, one end of the tension spring is connected to the ash scraping strip, and the other end is connected to the header.

[0023] In this technical solution, it should be noted that the provided tension spring is used to assist the fan blade in the header to reset. That is, when the fan blade in the header rotates and moves an angle under the power of the medium liquid, after the medium liquid separates from the fan blade, the fan blade returns to the initial position under the action of the external pull ring.

[0024] A method for using a heat dissipation device for a floating photovoltaic panel, including:

[0025] A1: In the non-heating season, close the heat conduction pipe through the first valve, open one end of the second loop pipe, close one end of the heat transfer pipe through the third valve, open the other end of the second loop pipe, close the other end of the heat transfer pipe through the second valve, and open the first loop pipe;

[0026] The photovoltaic panel absorbs the heat of the sun, transfers the temperature to the encapsulation shell on the back, the encapsulation shell transfers the heat to the heat pipe through the phase change material, the heat pipe transfers the heat to the medium liquid in the header through the way of partition heat exchange, and the medium liquid circulates in the header, the first loop pipe, the cavity and the second loop pipe under the action of the ground heat pump, and transfers the heat to the surrounding soil through the cavity during the flowing process;

[0027] A2: In the heating season, open the heat conduction pipe through the first valve, close one end of the second loop pipe, open the other end of the second loop pipe through the third valve, close one end of the heat transfer pipe, and close the first loop pipe through the second valve;

[0028] After the medium liquid in the cavity absorbs the heat of the surrounding soil, it flows into the building heat network through the heat conduction pipe under the pressure of the ground heat pump for residents to use. After the medium liquid releases heat, it enters the cavity of the foundation pile again through the external pipeline;

[0029] A3: When the temperature in the pond is too low, open one end of the heat transfer pipe through the third valve, close one end of the second loop pipe, open the other end of the heat transfer pipe through the second valve, and close the first loop pipe;

[0030] After the medium liquid in the cavity absorbs the heat of the surrounding soil, it flows into the heat transfer pipe under the pressure of the ground heat pump, exchanges heat with the water source around the heat transfer pipe, and at the same time the water pump starts to enhance the fluidity of the lake water and increase the heat exchange effect.

[0031] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0032] 1. In the present invention, through the heat pipes, headers, first loop pipes, second loop pipes and cavities provided, the cooling of the photovoltaic panels can be achieved. By adopting the way of wall heat exchange between the heat pipes and the headers, the reliability of the system is ensured, and the maintenance and repair of the system are easy. At the same time, the heat of the photovoltaic panels can be transferred to the surrounding soil for storage and extracted during the winter heating season to achieve cross-seasonal heat storage. And because a large number of piles need to be driven for the fixed power station on the water pile foundation, the cost is high and the construction is difficult. Therefore, by arranging cavities in the pile foundation to form the form of energy piles, the construction cost can be reduced.

[0033] 2. The present invention is provided with a buoy and a lifting cylinder. The buoy can adaptively drive the lifting cylinder and the photovoltaic panel to lift with the rise and fall of the lake liquid level, and the situation that the photovoltaic panel is submerged will not occur.

[0034] 3. The present invention is provided with a dust scraping strip and a driving device. When the medium liquid passes through the linkage box, the medium liquid will impact the fan blades, so that the fan blades can rotate under the drive of the medium liquid. After the fan blades rotate, the rotating shaft is driven to rotate, and then the dust scraping strip on the rotating shaft is driven to rotate. During the rotation of the dust scraping strip, the dust on the surface of the photovoltaic panel is swept out, improving the power generation efficiency of the photovoltaic panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The present invention will be described by way of examples with reference to the drawings, where:

[0036] Figure 1 is a three-dimensional structure schematic diagram of the present invention;

[0037] Figure 2 is a top three-dimensional structure schematic diagram of the present invention;

[0038] Figure 3 is a rear three-dimensional structure schematic diagram of the present invention;

[0039] Figure 4 is a side three-dimensional structure schematic diagram of the header after cutting and the photovoltaic panel of the present invention;

[0040] Figure 5 is an internal structure schematic diagram of the photovoltaic panel of the present invention;

[0041] Figure 6 is a three-dimensional structure schematic diagram of the pile foundation and the lifting cylinder of the present invention;

[0042] Figure 7 is a sectional three-dimensional structure schematic diagram of the pile foundation of the present invention;

[0043] Wherein: 1 - photovoltaic panel, 2 - header tank, 3 - first loop pipe, 31 - second valve, 4 - second loop pipe, 41 - first valve, 5 - foundation pile, 6 - lifting cylinder, 7 - floating cylinder, 8 - connecting pipe, 9 - heat transfer pipe, 91 - third valve, 10 - bracket, 11 - heat pipe, 12 - water pump, 13 - heat conduction pipe, 14 - ash scraping strip, 15 - rotating shaft, 16 - fan blade, 17 - tension spring, 18 - encapsulation housing, 19 - phase change material, 20 - cavity, 99 - ground heat pump. Detailed implementation manners

[0044] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some but not all of the embodiments of the present invention. The components of the embodiments of the present invention usually described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0045] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed present invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0046] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other.

[0047] It should be noted that like reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0048] In the present invention, unless otherwise clearly defined and limited, the first feature being "on" or "under" the second feature may include direct contact between the first and second features, or may include indirect contact between the first and second features through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is lower than that of the second feature.

[0049] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other. Embodiment 1

[0050] As Figures 1-7 shown, an embodiment of the present invention discloses a heat dissipation device for a floating photovoltaic panel 1, including a foundation pile 5 and a photovoltaic panel 1 disposed above the foundation pile 5; a cavity 20 is provided inside the side wall of the foundation pile 5; a packaging shell 18 is provided at the bottom of the photovoltaic panel 1, and a plurality of heat pipes 11 are provided inside the packaging shell 18. One end of the heat pipe 11 penetrates out of the packaging shell 18 and is connected to a header tank 2. There is a dielectric liquid in the header tank 2. Both ends of the header tank 2 are respectively communicated with a first loop pipe 3 and a second loop pipe 4. The ends of the first loop pipe 3 and the second loop pipe 4 far from the header tank 2 are respectively communicated with the cavity 20 of the foundation pile 5, and a ground heat pump 99 is provided on the first loop pipe 3. It should be noted that there are multiple foundation piles 5, and the cavities 20 of two adjacent foundation piles 5 are connected through a connecting pipe 8. Both ends of the heat pipe 11 are closed structures, and heat transfer with the dielectric liquid in the header tank 2 is carried out through wall-to-wall contact. In this solution, during the non-heating season, the photovoltaic panel 1 absorbs the heat of the sun, transfers the temperature to the back packaging shell 18, the packaging shell 18 transfers the heat to the heat pipe 11, and the heat pipe 11 transfers the heat to the dielectric liquid in the header tank 2 through wall heat exchange. The dielectric liquid circulates in the header tank 2, the first loop pipe 3, the cavity 20 and the second loop pipe 4 under the action of the ground heat pump 99, and transfers the heat to the surrounding soil through the cavity 20 during the flow process; in summary, the present invention can realize the cooling of the photovoltaic panel 1 by setting the heat pipe 11, the header tank 2, the first loop pipe 3, the second loop pipe 4 and the cavity 20, and at the same time can transfer the heat of the photovoltaic panel 1 to the surrounding soil for storage, and extract it during the winter heating season to realize cross-season heat storage; and because a large number of piles need to be driven for a floating pile foundation fixed power station, the cost is high and it is not easy to construct. Therefore, by setting a cavity 20 in the foundation pile 5 to form an energy pile, the construction cost can be reduced.

[0051] As Figure 6 and Figure 7 shown, in this embodiment, a lifting cylinder 6 is sleeved on the foundation pile 5, the photovoltaic panel 1 is fixedly connected to the lifting cylinder 6 through a bracket 10, a floating cylinder 7 is fixedly sleeved on the side wall of the lifting cylinder 6, and both the first loop pipe 3 and the second loop pipe 4 are flexible hoses. It should be noted that generally, a lake may experience rising water. If the water rises too much, the photovoltaic panel 1 may be submerged, resulting in damage to the photovoltaic panel 1 due to immersion. Based on this, the present invention is provided with a floating cylinder 7 and a lifting cylinder 6. The floating cylinder 7 can adaptively drive the lifting cylinder 6 and the photovoltaic panel 1 to rise and fall with the rise and fall of the lake water level, and the photovoltaic panel 1 will not be submerged.

[0052] As Figure 5As shown, in this embodiment, the encapsulation housing 18 is filled with a phase change material 19, and the phase change material 19 wraps the heat pipe 11. It should be noted that the phase change material 19 is provided to improve the cooling effect of the photovoltaic panel.

[0053] As Figures 1-3 shown, in this embodiment, a heat conduction pipe 13 is connected to the second loop pipe 4, and a first valve 41 for opening and closing the second loop pipe 4 and the heat conduction pipe 13 is provided at the connection of the heat conduction pipe 13 and the second loop pipe 4. A heat transfer pipe 9 is provided on one side of the foundation pile 5. One end of the heat transfer pipe 9 is connected to the first loop pipe 3, and the other end is connected to the second loop pipe 4. A second valve 31 for opening and closing the first loop pipe 3 and the heat transfer pipe 9 is provided at the connection of the heat transfer pipe 9 and the first loop pipe 3, and a third valve 91 for opening and closing the second loop pipe 4 and the heat transfer pipe 9 is provided at the connection of the heat transfer pipe 9 and the second loop pipe 4. It should be noted that in the non-heating season, the heat conduction pipe 13 is closed through the first valve 41, one end of the second loop pipe 4 is opened, one end of the heat transfer pipe 9 is closed through the third valve 91, the other end of the second loop pipe 4 is opened, the other end of the heat transfer pipe 9 is closed through the second valve 31, and the first loop pipe 3 is opened; the photovoltaic panel 1 absorbs the heat of the sun and transfers the temperature to the encapsulation housing 18 on the back. The encapsulation housing 18 transfers the heat to the heat pipe 11 through the phase change material 19, and the heat pipe 11 transfers the heat to the medium liquid in the header tank 2 by means of wall heat exchange. The medium liquid circulates in the header tank 2, the first loop pipe 3, the cavity 20, and the second loop pipe 4 under the action of the ground source heat pump 99, and transfers the heat to the surrounding soil through the cavity 20 during the flow process;

[0054] In the heating season, the heat conduction pipe 13 is opened through the first valve 41, one end of the second loop pipe 4 is closed, the other end of the second loop pipe 4 is opened through the third valve 91, one end of the heat transfer pipe 9 is closed, and the first loop pipe 3 is closed through the second valve 31; after the medium liquid in the cavity 20 absorbs the heat of the surrounding soil, it flows into the building heat network for residents to use through the pressure of the ground source heat pump 99. After the medium liquid releases heat, it enters the cavity 20 of the foundation pile 5 again through the external pipeline.

[0055] As Figure 3 shown, in this embodiment, a water pump 12 is provided on one side of the heat transfer pipe 9. It should be noted that the water pump 12 is provided to increase the fluidity of the surrounding water source and improve the heat exchange effect. Embodiment 2

[0056] As Figure 4As shown in the figure, this embodiment is substantially the same as the above embodiment. The difference lies in that a dust scraping strip 14 is slidably connected to the surface of the photovoltaic panel 1. One end of the dust scraping strip 14 is rotatably connected to the header 2 through a rotating shaft 15. The rotating shaft 15 is vertically arranged, and a driving device for driving the rotating shaft 15 to rotate is further provided on the header 2. One end of the rotating shaft 15 penetrates into the header 2. The driving device includes a fan blade 16. The fan blade 16 is arranged on the rotating shaft 15 along the radial direction of the rotating shaft 15, and the fan blade 16 is located inside the header 2. It should be noted that after the solar panel is used for a long time, dust in the air and feces of flying birds will adhere to the surface of the photovoltaic panel 1. The adhesion of these impurities will block the incidence of sunlight, reduce the light absorption capacity of the photovoltaic module, and thus lead to a decrease in power generation efficiency. Based on this, in this solution, a dust scraping strip 14 and a driving device are provided. When the dielectric liquid passes through the header, the dielectric liquid will impact the fan blade 16, so that the fan blade 16 can rotate under the drive of the dielectric liquid. After the fan blade 16 rotates, it drives the rotating shaft 15 to rotate, and then drives the dust scraping strip 14 on the rotating shaft 15 to rotate. During the rotation of the dust scraping strip 14, the dust on the surface of the photovoltaic panel 1 is swept out, improving the power generation efficiency of the photovoltaic panel 1; further, in this solution, the length of the dust scraping strip 14 is greater than the diagonal length of the photovoltaic panel 1, so that during the rotation of the dust scraping strip 14, it can cover the entire photovoltaic panel 1.

[0057] As Figure 4 shown, in this embodiment, a tension spring 17 is provided at the top of the header 2. One end of the tension spring 17 is connected to the dust scraping strip 14, and the other end is connected to the header 2. It should be noted that the provided tension spring 17 is used to assist the fan blade 16 in the header 2 to reset. That is, when the fan blade 16 in the header 2 rotates and moves an angle under the power of the dielectric liquid, when the dielectric liquid separates from the fan blade 16, the fan blade 16 returns to its initial position under the action of the external pull ring. Embodiment 3

[0058] Based on the above embodiment, this embodiment proposes a method for using a heat dissipation device for a floating photovoltaic panel 1, including:

[0059] A1: In the non-heating season, close the heat conduction pipe 13 through the first valve 41, open one end of the second loop pipe 4, close one end of the heat transfer pipe 9 through the third valve 91, open the other end of the second loop pipe 4, close the other end of the heat transfer pipe 9 through the second valve 31, and open the first loop pipe 3;

[0060] The photovoltaic panel 1 absorbs the heat of the sun and transfers the temperature to the encapsulation housing 18 at the back. The encapsulation housing 18 transfers the heat to the heat pipe 11 through the phase change material 19. The heat pipe 11 transfers the heat to the dielectric liquid in the header tank 2 by means of wall heat exchange. The dielectric liquid circulates in the header tank 2, the first loop pipe 3, the cavity 20 and the second loop pipe 4 under the action of the ground heat pump 99, and transfers the heat to the surrounding soil through the cavity 20 during the flowing process;

[0061] A2: In the heating season, open the heat conduction pipe 13 through the first valve 41, close one end of the second loop pipe 4, open the other end of the second loop pipe 4 through the third valve 91, seal one end of the heat transfer pipe 9, and close the first loop pipe 3 through the second valve 31;

[0062] After absorbing the heat of the surrounding soil, the dielectric liquid in the cavity 20 flows into the building heat network through the heat conduction pipe 13 under the pressure of the ground heat pump 99 for residents to use. After the dielectric liquid releases heat, it enters the cavity 20 of the foundation pile 5 again through the external pipeline;

[0063] A3: When the temperature in the pond is too low, open one end of the heat transfer pipe 9 through the third valve 91, close one end of the second loop pipe 4, open the other end of the heat transfer pipe 9 through the second valve 31, and seal the first loop pipe 3;

[0064] After absorbing the heat of the surrounding soil, the dielectric liquid in the cavity 20 flows into the heat transfer pipe 9 under the pressure of the ground heat pump 99, exchanges heat with the water source around the heat transfer pipe 9, and at the same time, the water pump 12 starts to enhance the fluidity of the lake water and increase the heat exchange effect.

[0065] The circuits, electronic components and modules involved are all prior arts and can be fully realized by those skilled in the art without further elaboration. The content protected by the present invention does not involve the improvement of software and methods either.

[0066] The various embodiments in this specification are described in a progressive manner. Each embodiment focuses on the differences from other embodiments. The same or similar parts among the embodiments can be referred to each other.

[0067] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A heat dissipation device for a water photovoltaic panel, characterized in that: It comprises a foundation pile (5) and a photovoltaic panel (1) arranged above the foundation pile (5); A cavity (20) is provided inside the side wall of the foundation pile (5); A packaging shell (18) is provided at the bottom of the photovoltaic panel (1), a plurality of heat pipes (11) are provided in the packaging shell (18), one end of the heat pipe (11) extends out of the packaging shell (18) and is connected to a header (2), a medium liquid is contained in the header (2), two ends of the header (2) are respectively connected to a first loop pipe (3) and a second loop pipe (4), the ends of the first loop pipe (3) and the second loop pipe (4) away from the header (2) are respectively connected to a cavity (20) of a foundation pile (5), and a geothermal source pump (99) is provided on the first loop pipe (3); A lifting cylinder (6) is sleeved on the foundation pile (5), the photovoltaic panel (1) is fixedly connected to the lifting cylinder (6) via a bracket (10), a buoy (7) is fixedly sleeved on the side wall of the lifting cylinder (6), and the first loop pipe (3) and the second loop pipe (4) are both hoses; The packaging shell (18) is filled with a phase change material (19), and the phase change material (19) wraps the heat pipe (11); The second loop pipe (4) is connected to a heat conducting pipe (13), and a first valve (41) for opening and closing the second loop pipe (4) and the heat conducting pipe (13) is provided at the connection point between the heat conducting pipe (13) and the second loop pipe (4); A heat transfer pipe (9) is provided on one side of the foundation pile (5); one end of the heat transfer pipe (9) is connected to the first loop pipe (3), and the other end is connected to the second loop pipe (4); a second valve (31) for opening and closing the first loop pipe (3) and the heat transfer pipe (9) is provided at the connection point between the heat transfer pipe (9) and the first loop pipe (3); and a third valve (91) for opening and closing the second loop pipe (4) and the heat transfer pipe (9) is provided at the connection point between the heat transfer pipe (9) and the second loop pipe (4); A water pump (12) is provided on one side of the heat transfer tube (9); A scraping strip (14) is slidably connected to the surface of the photovoltaic panel (1), one end of the scraping strip (14) is rotatably connected to the header (2) via a rotating shaft (15), the rotating shaft (15) is vertically arranged, and a driving device for driving the rotating shaft (15) to rotate is also provided on the header (2); One end of the rotating shaft (15) penetrates into the header (2); the driving device comprises a fan blade (16); the fan blade (16) is arranged on the rotating shaft (15) along the radial direction of the rotating shaft (15); and the fan blade (16) is located in the header (2); A tension spring (17) is provided on the top of the header (2); one end of the tension spring (17) is connected to the plaster scraping strip (14), and the other end is connected to the header (2).

2. A method for using a heat dissipation device for a water photovoltaic panel, using the heat dissipation device for a water photovoltaic panel according to claim 1, characterized in that: include: A1: In the non-heating season, the heat transfer pipe (13) is closed by the first valve (41), one end of the second loop pipe (4) is opened, one end of the heat transfer pipe (9) is closed by the third valve (91), the other end of the second loop pipe (4) is opened, the other end of the heat transfer pipe (9) is closed by the second valve (31), and the first loop pipe (3) is opened; The photovoltaic panel (1) absorbs the heat from the sun and transfers the temperature to the packaging shell (18) at the back, the packaging shell (18) transfers the heat to the heat pipe (11) through the phase change material (19), the heat pipe (11) transfers the heat to the medium liquid in the header (2) through the partition heat exchange method, and the medium liquid circulates in the header (2), the first loop pipe (3), the cavity (20) and the second loop pipe (4) under the action of the geothermal source pump, and transfers the heat to the surrounding soil through the cavity (20) during the flow process; A2: In a season when heating is required, the heat transfer pipe (13) is opened through the first valve (41), one end of the second loop pipe (4) is closed, the other end of the second loop pipe (4) is opened through the third valve (91), one end of the heat transfer pipe (9) is sealed, and the first loop pipe (3) is closed through the second valve (31); After absorbing heat from the surrounding soil, the medium liquid in the cavity (20) is fed into the building heat network through the heat transfer pipe (13) by the pressure of the geothermal source pump for use by residents. After releasing heat, the medium liquid passes through the external pipeline and then enters the cavity (20) of the foundation pile (5); A3: When the temperature in the pond is too low, one end of the heat transfer tube (9) is opened through the third valve (91), one end of the second loop tube (4) is closed, and the other end of the heat transfer tube (9) is opened through the second valve (31), and the first loop tube (3) is closed; After absorbing the heat from the surrounding soil, the medium liquid in the cavity (20) flows into the heat transfer pipe (9) through the pressure of the geothermal source pump, and exchanges heat with the water source around the heat transfer pipe (9). At the same time, the water pump (12) is started to improve the fluidity of the lake water and enhance the heat exchange effect.

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