A waste heat collection device for solar photovoltaic panels and a method of using the same

Abstract

The present application provides a waste heat collection device for a solar photovoltaic panel and a method of using the same, which belongs to the field of solar energy, and includes an external support frame and a photovoltaic panel, wherein a heat exchange component is provided on the non-working surface of the photovoltaic panel. In the present invention, a water inlet pipe and a water spray pipe are provided, and four water inlet pipes are evenly distributed, and four water spray pipes are evenly distributed on the water inlet pipes, and the water spray pipes are evenly arranged inside the heat conduction plate, and multiple water spray pipes spray water to the heat conduction plate at the same time. Since the water spray pipes are always facing the heat conduction plate, and the water sprayed from the inside has a certain kinetic energy, the water flow can be concentrated to flow to the heat conduction plate, thereby ensuring the contact time and contact area between the cold water and the heat conduction plate, and utilizing the water sprayed synchronously to exchange heat with the heat conduction plate, thereby achieving a good heat exchange effect, thereby being able to quickly and evenly reduce the temperature of the non-working surface of the photovoltaic panel.

Description

Technical Field

[0001] The present application relates to the field of solar energy technology, and in particular to a waste heat collection device for a solar photovoltaic panel and a method of using the same. Background Art

[0002] Solar photovoltaic panels are devices that use the photovoltaic effect of photovoltaic semiconductor materials to convert solar energy into direct current electricity. Their core components are usually composed of multiple solar cells. When sunlight shines on solar photovoltaic panels, solar cells absorb photons and convert photon energy into electron energy. These electrons then flow through the electron conduction layer to generate current. In the actual working process, the temperature of solar photovoltaic panels will continue to rise due to the strong exposure of sunlight, making the electrons in the solar cells more thermal. The increase in the speed of electron movement causes a loss of control. The electrons cannot be effectively captured by the electron conduction layer and cannot be effectively converted into current output. Therefore, cooling and heat recovery devices for photovoltaic panels come into being;

[0003] Solutions have been provided in the prior art for the problems of solar photovoltaic panel power generation and heat recovery, such as a solar photovoltaic power generation and solar thermal heating integrated system with announcement number CN114198799B, which sprays cooling water onto the heat collecting part through a series of structures such as a water spraying part, a heat collecting part and a storage tank, thereby cooling the cooling water, and collecting the water after heat exchange through the heat collecting part;

[0004] However, during the actual use of the device, the arrangement angle of the photovoltaic panels also restricted the position of the water spraying parts. The sprayed water was affected by gravity and could not make good contact with the heat transfer plate, resulting in the problem that part of the water could not participate well in the heat exchange. Although part of the water sprayed by the water spraying parts could flow in the water flow channel, its temperature gradually increased during the flow. The heat transfer plate on the side away from the water spraying parts could not lower the temperature to a low point, resulting in uneven cooling and poor heat collection effect. Summary of the invention

[0005] In view of this, the purpose of the present application is to provide a waste heat collection device for a solar photovoltaic panel and a method of using the same, so as to fully allow the water that conducts heat to flow inside the heat conducting plate, thereby enhancing the fluidity of the water and reducing the influence of gravity on it, thereby achieving sufficient heat exchange and uniform cooling of the photovoltaic panel.

[0006] In order to solve the above technical problems, this application provides the following technical solutions:

[0007] A waste heat collection device for a solar photovoltaic panel, comprising an external support frame and a photovoltaic panel, wherein a heat exchange component is provided on a non-working surface of the photovoltaic panel;

[0008] The heat exchange assembly comprises: a heat conducting plate, a confluence trough, a water inlet pipe, a water spray pipe, a water collecting pipe, a heat collecting pipe and a water return pipe. The heat conducting plate, which is hollow and open on both sides, is attached to the non-working surface of the photovoltaic panel. The confluence trough is arranged at an opening position on one side of the heat conducting plate. The water inlet pipe is arranged on a side of the confluence trough facing the heat conducting plate. The water spray pipe is arranged on a side of the water inlet pipe facing the non-working surface of the photovoltaic panel. The water collecting pipe is arranged at an opening position on the other side of the heat conducting plate. The heat collecting pipe is arranged on one side of the water collecting pipe. The water return pipe is arranged at one end of the heat collecting pipe.

[0009] The outer support frame includes a base plate and columns;

[0010] Two storage tanks are respectively arranged on both sides of the top of the bottom plate, a sleeve is arranged on the top of each storage tank, a piston is arranged inside each sleeve, a connecting pipe penetrating the top side wall of the storage tank is arranged at the bottom of each sleeve, a one-way valve 1 is arranged on the connecting pipe, and the working directions of the two one-way valves 1 are arranged opposite to each other, and a driving component is arranged between the two storage tanks;

[0011] The driving assembly includes: a motor, a reducer, a crankshaft, a connecting journal, a slider, a transmission shaft, a universal coupling and an extrusion piece. The motor is fixedly installed on the top of the base plate, the reducer is in transmission cooperation with the motor, the crankshaft is fixedly connected to the output shaft of the reducer, the connecting journal is fixedly connected to the end face of the crankshaft, the slider is sleeved on the outside of the connecting journal, the transmission shaft is fixedly connected to one end of the crankshaft, the universal coupling is arranged at one end of the transmission shaft, the extrusion piece is connected to the other end of the universal coupling, and the extrusion piece is arranged to penetrate the bottom side wall of the heat conducting plate;

[0012] The two pistons are respectively fixed on both sides of the slider, a water supply pipe is arranged on one side of the confluence groove, the water supply pipe is connected with one of the sleeves, and the water return pipe is connected with the other sleeve.

[0013] Preferably, the water inlet pipes include four, the four water inlet pipes are evenly spaced and distributed on one side of the confluence trough, and the four water inlet pipes are all embedded in an opening on one side of the heat conducting plate;

[0014] Each of the water inlet pipes is provided with water spray pipes which are distributed at equal intervals.

[0015] Preferably, a flow guide assembly is provided at the bottom of the water inlet pipe, and the flow guide assembly includes a pressure piece, a valve flap, a connecting rod, a guide block and a reset spring. The pressure piece is in a "T" shape, and the horizontal part of the pressure piece is a cylindrical structure. The horizontal part of the pressure piece is embedded in the inside of the water spray pipe, and the vertical part of the pressure piece passes through the bottom side wall of the water inlet pipe. The horizontal part of the pressure piece is provided with a water hole, and the valve flap is hinged to the upper surface of the horizontal part of the pressure piece;

[0016] The connecting rod is arranged along the width direction of the heat conducting plate, the connecting rod is fixed to the bottom of the horizontal part of the pressure piece, the guide block is fixedly connected to the bottom of the connecting rod, the bottom of the guide block includes a hemispherical part, the guide block is arranged parallel to the extrusion piece, and the return spring is arranged on the surface of the connecting rod.

[0017] Preferably, the extrusion piece includes a cylindrical portion located in the center and two prism portions located on the outer circumference of the cylindrical portion, and the cylindrical portion of the extrusion piece passes through the center position of the bottom side wall of the heat conducting plate;

[0018] The two prism parts are symmetrically arranged on both sides of the heat conducting plate, and the prism part includes an inclined surface located on the top surface thereof.

[0019] Preferably, the connecting rod is orthogonally distributed with the water inlet pipe, and the connecting rod is arranged across four water inlet pipes;

[0020] The number of the guide blocks corresponds to the number of the water spray pipes, and the guide blocks are arranged directly below the water spray pipes.

[0021] Preferably, a drainage tube runs through the interior of the connecting rod, and the drainage tube is in the shape of a trumpet with an opening at the top expanding downward.

[0022] Preferably, the connecting journal is eccentrically mounted in the middle of the crankshaft, the slider is elliptical in shape, and the slider is embedded in the middle of the crankshaft;

[0023] The two pistons are symmetrically arranged on both sides of the sliding block.

[0024] Preferably, a second one-way valve is installed inside the water supply pipe, and a third one-way valve is installed inside the water return pipe. Both the water supply pipe and the water return pipe are hoses.

[0025] Preferably, a stepper motor is provided on one side of the column, and an output end of the stepper motor is transmission-connected to the photovoltaic panel.

[0026] On the other hand, the present application provides a method for using a waste heat collection device of a solar photovoltaic panel:

[0027] S1: Through the coordinated action of the motor and the reducer, the crankshaft is driven to rotate back and forth, driving the connecting journal to make circular motion, and the connecting journal reciprocates to squeeze the slider, causing the slider to make reciprocating linear motion, driving the piston to reciprocate inside the sleeve. Under the action of negative pressure, the piston sends the water in one of the storage tanks to the water supply pipe;

[0028] S2: The piston squeezes the water in the sleeve so that the water flows through the confluence groove and the water inlet pipe in sequence and is sprayed out from the water spray pipe. The multiple water spray pipes are arranged to spray water to the side of the heat conduction plate facing the photovoltaic panel to perform heat exchange;

[0029] S3: The crankshaft drives the transmission shaft and the universal coupling to rotate at the same time, driving the extrusion piece to rotate inside the heat conducting plate, stirring the liquid inside the heat conducting plate, fully mixing the water flow, and ensuring that the heat conducting plate and the water flow can fully exchange heat;

[0030] S4: The water inside the heat conducting plate is continuously sent into the water collecting pipe and flows into the heat collecting pipe, where it further absorbs solar energy to increase the water temperature again;

[0031] S5: Finally, the water in the heat collecting tube flows into the return pipe, and through the cooperation of another sleeve and piston, flows into another storage tank, completing the collection of hot water for subsequent use.

[0032] In the present invention, by arranging water inlet pipes and water spray pipes, four water inlet pipes are evenly distributed, four water spray pipes are evenly distributed on the water inlet pipes, the water spray pipes are evenly arranged inside the heat conduction plate, and multiple water spray pipes spray water to the heat conduction plate at the same time. Since the water spray pipes are always facing the heat conduction plate, and the water sprayed therefrom has a certain kinetic energy, the water flow can be concentrated to flow to the heat conduction plate, thereby ensuring the contact time and contact area between the cold water and the heat conduction plate, and utilizing the synchronously sprayed water to exchange heat with the heat conduction plate to achieve a good heat exchange effect, thereby being able to quickly and evenly reduce the temperature of the non-working surface of the photovoltaic panel.

[0033] By arranging a crankshaft, a transmission shaft, a universal coupling and an extruded part, during the rotation of the crankshaft, the transmission shaft is also driven to rotate. Driven by the universal coupling, the extruded part can reciprocate inside the heat conducting plate. The extruded part has a good stirring effect on the water in the heat conducting plate, further enhancing the fluidity of the water inside the heat conducting plate, fully ensuring uniform heat exchange of water in various parts of the heat conducting plate, and ensuring the collection effect of the heat contained in the photovoltaic panel.

[0034] By setting up a heat collecting pipe, as the amount of water in the heat conducting plate continues to increase, the water that has undergone heat exchange with the heat conducting plate flows into the heat collecting pipe through the water collecting pipe. The heat collecting pipe can further absorb solar energy, increase the temperature of this part of the return water again, and increase the temperature of the output hot water.

[0035] By setting the guide block, the connecting rod and the drainage pipe, during the rotation of the extrusion piece, the extrusion piece can contact the guide block to displace the connecting rod, and the connecting rod also has a stirring effect on the water in the heat conduction plate, which is conducive to the uniform mixing of the water. A part of the water is squeezed by the connecting rod and moves to the drainage pipe and sprays out, providing water flows in different directions, cooperating to produce a stirring effect, and uniformly mixing the water.

[0036] By setting the pressure member and the valve disc, during the displacement of the connecting rod, the valve disc closes when the pressure member moves to the nozzle position of the water spray pipe, and the pressure member can spray out the water in the water spray pipe again, so that this part of the water can exchange heat with the heat transfer plate after being sprayed out. At the same time, under the action of this part of the water flow, the water in the heat transfer plate is prompted to flow, and the fluidity of the water is enhanced, so that the water in the heat transfer plate is evenly distributed, so that a good heat exchange effect is achieved between the water and the heat transfer plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the description, further serve to explain the principles of the present disclosure and to enable those skilled in the relevant art to make and use the present disclosure.

[0038] Figure 1 It is a schematic diagram of the overall structure in this application;

[0039] Figure 2 This is a schematic diagram of the photovoltaic panel structure in this application;

[0040] Figure 3 This is a schematic diagram of the transmission shaft structure in this application;

[0041] Figure 4 This is a schematic diagram of the crankshaft structure in this application;

[0042] Figure 5 This is a schematic diagram of the water inlet pipe structure in this application;

[0043] Figure 6 This is a schematic diagram of the water spray pipe structure in this application;

[0044] Figure 7 This is a schematic diagram of the connecting rod structure in this application;

[0045] Figure 8 This is a schematic diagram of the structure of the pressure member in this application;

[0046] Fig. 9 This is a schematic diagram of the bottom plate structure in this application;

[0047] In the figure: 1, outer support frame; 101, bottom plate; 102, column; 103, stepper motor; 2, photovoltaic panel; 3, heat conducting plate; 301, confluence trough; 3011, water supply pipe; 3012, one-way valve 2; 302, water inlet pipe; 303, water spray pipe; 304, water collecting pipe; 305, heat collecting pipe; 306, water return pipe; 3061, one-way valve 3; 4, storage tank; 401, sleeve ; 402, piston; 403, connecting pipe; 404, one-way valve 1; 5, motor; 501, reducer; 502, crankshaft; 503, connecting journal; 504, slider; 505, transmission shaft; 506, universal coupling; 507, extrusion piece; 6, pressurized piece; 601, valve disc; 602, connecting rod; 6021, drainage tube; 603, guide block; 604, return spring. DETAILED DESCRIPTION

[0048] like Figures 1 to 5 A waste heat collection device for a solar photovoltaic panel is shown, provided in an embodiment of the present application, comprising an outer support frame 1 and a photovoltaic panel 2, wherein a heat exchange component is provided on a non-working surface of the photovoltaic panel 2;

[0049] The heat exchange assembly includes: a heat conducting plate 3, a confluence groove 301, a water inlet pipe 302, a water spray pipe 303, a water collecting pipe 304, a heat collecting pipe 305 and a water return pipe 306. The heat conducting plate 3 which is hollow and open on both sides is attached to the non-working surface of the photovoltaic panel 2. The confluence groove 301 is arranged at an opening position on one side of the heat conducting plate 3. The water inlet pipe 302 is arranged on a side of the confluence groove 301 facing the heat conducting plate 3. The water spray pipe 303 is arranged on a side of the water inlet pipe 302 facing the non-working surface of the photovoltaic panel 2. The water collecting pipe 304 is arranged at an opening position on the other side of the heat conducting plate 3. The heat collecting pipe 305 is arranged on one side of the water collecting pipe 304. The water return pipe 306 is arranged at one end of the heat collecting pipe 305.

[0050] The outer support frame 1 includes a base plate 101 and a column 102;

[0051] Two storage tanks 4 are respectively arranged on both sides of the top of the bottom plate 101, and sleeves 401 are arranged on the top of the storage tanks 4, and pistons 402 are arranged inside the sleeves 401. The bottom of the sleeves 401 is provided with connecting pipes 403 that penetrate the top side walls of the storage tanks 4, and a one-way valve 1 404 is arranged on the connecting pipe 403. The working directions of the two one-way valves 1 404 are arranged opposite to each other, and a driving component is arranged between the two storage tanks 4;

[0052] The driving assembly includes: a motor 5, a reducer 501, a crankshaft 502, a connecting journal 503, a slider 504, a transmission shaft 505, a universal coupling 506 and an extrusion piece 507. The motor 5 is fixedly installed on the top of the base plate 101. The reducer 501 cooperates with the motor 5 in transmission. The crankshaft 502 is fixedly connected to the output shaft of the reducer 501. The connecting journal 503 is fixedly connected to the end surface of the crankshaft 502. The slider 504 is sleeved on the outer side of the connecting journal 503. The transmission shaft 505 is fixedly connected to one end of the crankshaft 502. The universal coupling 506 is arranged at one end of the transmission shaft 505. The extrusion piece 507 is connected to the other end of the universal coupling 506. The extrusion piece 507 is arranged to penetrate the bottom side wall of the heat conducting plate 3.

[0053] The two pistons 402 are fixed to the two sides of the slider 504 respectively. A water supply pipe 3011 is provided on one side of the confluence groove 301. The water supply pipe 3011 is connected to one of the sleeves 401, and the return pipe 306 is connected to the other sleeve 401.

[0054] When the photovoltaic panel 2 is working, the motor 5 is started and cooperates with the reducer 501 to output power, driving the crankshaft 502 to rotate so that the connecting journal 503 performs reciprocating circular motion, and the slider 504 performs reciprocating linear motion due to the compression of the connecting journal 503, and the slider 504 drives the two pistons 402 to perform reciprocating linear motion relative to the sleeve 401;

[0055] When the piston 402 near the water supply pipe 3011 is away from the sleeve 401 outside thereof, the sleeve 401 is under negative pressure. Under the cooperation of the sleeve 401, the connecting pipe 403 and the one-way valve 404, the connecting pipe 403 draws the water in the storage tank 4 directly below the water supply pipe 3011 into the sleeve 401 due to the negative pressure, and the water is squeezed by the piston 402 and sent into the water supply pipe 3011. The water is then transported to the confluence trough 301 and the water inlet pipe 302 by the water supply pipe 3011, and then sprayed out from the spray pipe 303.

[0056] Since there are multiple water spray pipes 303, and the multiple water spray pipes 303 are evenly arranged inside the heat conducting plate 3, the multiple water spray pipes 303 spray water to the heat conducting plate 3 at the same time, and the synchronously sprayed water is used to perform heat exchange with the heat conducting plate 3, so that the temperature of the non-working surface of the photovoltaic panel 2 can be quickly and evenly reduced;

[0057] Since the heat conducting plate 3 is attached to the back side of the photovoltaic panel 2, even if the photovoltaic panel 2 is in an inclined state, the nozzle of the water spray pipe 303 is always facing the photovoltaic panel 2, and the water flow pressure can be used to make the water contact the heat conducting plate 3 evenly, ensuring the contact time and contact area between the water and the heat conducting plate 3, so as to ensure the uniform cooling effect on the photovoltaic panel 2 and the effect of hot water recovery;

[0058] During the rotation of the crankshaft 502, the transmission shaft 505 is also driven to rotate. Driven by the universal coupling 506, the extrusion piece 507 can reciprocate inside the heat conducting plate 3. The extrusion piece 507 has a good stirring effect on the water in the heat conducting plate 3, further enhancing the fluidity of the water inside the heat conducting plate 3, fully ensuring that the water in each part of the heat conducting plate 3 is evenly heat exchanged, and ensuring the collection effect of the heat contained in the photovoltaic panel 2;

[0059] As the amount of water in the heat conducting plate 3 increases, the water that has undergone heat exchange with the heat conducting plate 3 flows into the heat collecting pipe 305 through the water collecting pipe 304. The heat collecting pipe 305 can further absorb solar energy, and further increase the temperature of the return water, thereby increasing the temperature of the output hot water.

[0060] Through the cooperation of the return pipe 306, the sleeve 401 connected to the return pipe 306, the piston 402 and the connecting pipe 403, the high-calorie return water is collected into another storage tank 4 for subsequent use;

[0061] Driven by the slider 504, the two sleeves 401, the two pistons 402, the two connecting pipes 403 and the two one-way valves 404 with opposite working directions can ensure the fluidity of the water inside the heat conduction plate 3, and can cooperate with the two storage tanks 4 to complete the process of outputting cold water and collecting hot water.

[0062] In this embodiment, Figure 5 and Figure 6 As shown in FIG. 1 , the water inlet pipes 302 include four water inlet pipes 302 equidistantly distributed on one side of the confluence trough 301 , and the four water inlet pipes 302 are all embedded in an opening on one side of the heat conducting plate 3 ;

[0063] Each water inlet pipe 302 is provided with water spray pipes 303 which are equally spaced apart;

[0064] The four water inlet pipes 302 are evenly distributed, so that the multiple water spray pipes 303 are evenly distributed, and a synchronous water spraying method is adopted, and the synchronously sprayed water is used to exchange heat with the heat conducting plate 3, so that the temperature of the non-working surface of the photovoltaic panel 2 can be quickly and evenly reduced;

[0065] Since the water spray pipe 303 is always directed toward the heat transfer plate 3 and the water sprayed therefrom has certain kinetic energy, the water flow can be concentrated to flow toward the heat transfer plate 3, thereby ensuring the contact time and contact area between the cold water and the heat transfer plate 3 and achieving a good heat exchange effect.

[0066] like Figure 5 , Figure 6 , Figure 7 and Figure 8As shown, a flow guide assembly is provided at the bottom of the water inlet pipe 302, and the flow guide assembly includes a pressure piece 6, a valve flap 601, a connecting rod 602, a guide block 603 and a reset spring 604. The pressure piece 6 is in a "T" shape, and the horizontal part of the pressure piece 6 is a cylindrical structure. The horizontal part of the pressure piece 6 is embedded in the inside of the water spray pipe 303, and the vertical part of the pressure piece 6 passes through the bottom side wall of the water inlet pipe 302. The horizontal part of the pressure piece 6 is provided with a water hole, and the valve flap 601 is hinged to the upper surface of the horizontal part of the pressure piece 6;

[0067] The connecting rod 602 is arranged along the width direction of the heat conducting plate 3, the connecting rod 602 is fixed to the bottom of the horizontal part of the pressure member 6, the guide block 603 is fixedly connected to the bottom of the connecting rod 602, the bottom of the guide block 603 includes a hemispherical part, the guide block 603 is arranged parallel to the extrusion member 507, and the return spring 604 is arranged on the surface of the connecting rod 602;

[0068] The water flowing in the water inlet pipe 302 can pass through the through holes on the surface of the pressurizing member 6 and finally spray out in the water spray pipe 303;

[0069] During the rotation of the extrusion member 507, since the guide block 603 is arranged on the moving path of the extrusion member 507, the extrusion member 507 squeezes the guide block 603, so that the pressure member 6 moves relative to the water spray pipe 303, and the valve flap 601 on the surface of the pressure member 6 can only be opened in one direction. When the pressure member 6 moves to the nozzle position of the water spray pipe 303, the valve flap 601 is closed, and the pressure member 6 can squeeze the water in the water spray pipe 303 to the outside, so that the water is sprayed out and heat exchange is performed with the heat conduction plate 3;

[0070] Under the action of this part of water flow, the rest of the water inside the heat conducting plate 3 is merged, the water inside the heat conducting plate 3 is prompted to flow, the fluidity of the water is enhanced, so that the water inside the heat conducting plate 3 is evenly distributed, so that a good heat exchange effect is achieved between the water and the heat conducting plate 3;

[0071] Under the action of the reset spring 604 , after the extruding member 507 is separated from the reset guide block 603 , the pressure member 6 can be reset.

[0072] like Figure 3 As shown, the extrusion piece 507 includes a cylindrical portion located in the center, and two prism portions located on the outer circumference of the cylindrical portion, and the cylindrical portion of the extrusion piece 507 passes through the center position of the bottom side wall of the heat conducting plate 3;

[0073] Two prism parts are symmetrically arranged on both sides of the heat conducting plate 3, and the prism part includes an inclined surface located on the top surface thereof;

[0074] During the rotation of the extrusion member 507, the prism portion thereof has an inclined surface, which has a guiding effect on the water body, so that the water body flows along the inclined surface, achieving a good stirring and mixing effect;

[0075] The connecting rod 602 arranged along the width direction of the heat conducting plate 3 is also displaced when being squeezed by the extruding member 507 , which also has a stirring effect on the water inside the heat conducting plate 3 , thereby facilitating uniform mixing of the water.

[0076] like Figure 5 and Figure 6 As shown, the connecting rod 602 is orthogonally distributed with the water inlet pipe 302, and the connecting rod 602 is arranged across the four water inlet pipes 302;

[0077] The number of guide blocks 603 corresponds to the number of water spray pipes 303, and the guide blocks 603 are arranged directly below the water spray pipes 303;

[0078] A single connecting rod 602 spans across four water inlet pipes 302, and the single connecting rod 602 synchronously controls the displacement of four pressure members 6. Four guide blocks 603 are provided at the bottom of the single connecting rod 602. During the rotation of the extrusion member 507, the four guide blocks 603 are squeezed in sequence to form four water spraying processes;

[0079] There are four connecting rods 602 in total, and the guide blocks 603 at the bottoms of different connecting rods 602 are squeezed by the extrusion piece 507 respectively, so as to achieve the effect of fully stirring the water flow.

[0080] like Figure 7 and Figure 8 As shown, a drainage tube 6021 runs through the interior of the connecting rod 602, and the drainage tube 6021 is in the shape of a trumpet with an opening at the top expanding downward;

[0081] During the displacement of the connecting rod 602, a portion of the water is squeezed by the connecting rod 602 and moves toward the drainage pipe 6021 and is ejected, providing water flows in different directions, cooperating to produce a stirring effect and uniformly mixing the water.

[0082] like Figure 4 As shown, the connecting journal 503 is eccentrically mounted in the middle of the crankshaft 502, and the slider 504 is elliptical in shape, and the slider 504 is embedded in the middle of the crankshaft 502;

[0083] The two pistons 402 are symmetrically arranged on both sides of the slider 504;

[0084] The slider 504 is limited by the crankshaft 502 to prevent it from jumping up and down, so that it can run stably and ensure the accuracy of the positions of the two pistons 402.

[0085] like Figure 1 As shown, a second check valve 3012 is installed inside the water supply pipe 3011, and a third check valve 3061 is installed inside the water return pipe 306. Both the water supply pipe 3011 and the water return pipe 306 are hoses;

[0086] The second one-way valve 3012 can prevent the water in the water supply pipe 3011 from flowing back;

[0087] The one-way valve 3061 can prevent the water in the return pipe 306 from flowing back.

[0088] like Fig. 9 As shown, a stepper motor 103 is provided on one side of the column 102, and the output end of the stepper motor 103 is transmission-connected to the photovoltaic panel 2;

[0089] The stepper motor 103 can be controlled by an external control device to work, and gradually drive the photovoltaic panel 2 to tilt, which is beneficial to keep the photovoltaic panel 2 facing the sun and improve the utilization rate of solar energy.

[0090] Furthermore, a waste heat collection device for a solar photovoltaic panel is used in the following steps:

[0091] S1: Through the coordinated action of the motor 5 and the reducer 501, the crankshaft 502 is driven to reciprocate, driving the connecting journal 503 to make a circular motion, and the connecting journal 503 reciprocates to squeeze the slider 504, so that the slider 504 makes a reciprocating linear motion, driving the piston 402 to reciprocate inside the sleeve 401. Under the action of negative pressure, the piston 402 sends the water in one of the storage tanks 4 to the water supply pipe 3011;

[0092] S2: The piston 402 squeezes the water in the sleeve 401, so that the water flows through the confluence groove 301 and the water inlet pipe 302 in sequence, and is sprayed out from the water spray pipe 303. The multiple water spray pipes 303 are arranged to spray water to the side of the heat conduction plate 3 facing the photovoltaic panel 2 to perform heat exchange;

[0093] S3: The crankshaft 502 drives the transmission shaft 505 and the universal coupling 506 to rotate at the same time, and drives the extrusion piece 507 to rotate inside the heat conducting plate 3, stirring the liquid inside the heat conducting plate 3, fully mixing the water flow, and ensuring that the heat conducting plate 3 and the water flow can fully exchange heat;

[0094] S4: The water inside the heat conducting plate 3 is continuously sent to the water collecting pipe 304 and flows into the heat collecting pipe 305, and further absorbs solar energy through the heat collecting pipe 305 to increase the water temperature again;

[0095] S5: Finally, the water in the heat collecting tube 305 flows into the return pipe 306, and flows into another storage tank 4 through the cooperation of another sleeve 401 and piston 402, completing the collection of hot water for subsequent use.

Claims

1. A waste heat collection device for a solar photovoltaic panel, comprising an outer support frame (1) and a photovoltaic panel (2), characterized in that: The non-working surface of the photovoltaic panel (2) is provided with a heat exchange component; The heat exchange component comprises: a heat conducting plate (3), a confluence groove (301), a water inlet pipe (302), a water spray pipe (303), a water collecting pipe (304), a heat collecting pipe (305) and a water return pipe (306); the heat conducting plate (3) which is hollow and open on both sides is attached to the non-working surface of the photovoltaic panel (2); the confluence groove (301) is arranged at an opening position on one side of the heat conducting plate (3); the water inlet pipe (302) is arranged on a side of the confluence groove (301) facing the heat conducting plate (3); the water spray pipe (303) is arranged on a side of the water inlet pipe (302) facing the non-working surface of the photovoltaic panel (2); the water collecting pipe (304) is arranged at an opening position on the other side of the heat conducting plate (3); the heat collecting pipe (305) is arranged on one side of the water collecting pipe (304); and the water return pipe (306) is arranged at one end of the heat collecting pipe (305); The outer support frame (1) comprises a base plate (101) and a column (102); Two storage tanks (4) are respectively arranged on both sides of the top of the bottom plate (101), a sleeve (401) is arranged on the top of each storage tank (4), a piston (402) is arranged inside each sleeve (401), a connecting pipe (403) penetrating the top side wall of the storage tank (4) is arranged on the bottom of each sleeve (401), a one-way valve (404) is arranged on the connecting pipe (403), the working directions of the two one-way valves (404) are arranged opposite to each other, and a driving component is arranged between the two storage tanks (4); The driving assembly comprises: a motor (5), a reducer (501), a crankshaft (502), a connecting journal (503), a slider (504), a transmission shaft (505), a universal coupling (506) and an extrusion piece (507); the motor (5) is fixedly mounted on the top of the base plate (101); the reducer (501) and the motor (5) are in transmission cooperation; the crankshaft (502) is fixedly connected to the output shaft of the reducer (501); the connecting The journal (503) is fixedly connected to the end surface of the crankshaft (502), the slider (504) is sleeved on the outer side of the connecting journal (503), the transmission shaft (505) is fixedly connected to one end of the crankshaft (502), the universal joint (506) is arranged at one end of the transmission shaft (505), the extrusion piece (507) is connected to the other end of the universal joint (506), and the extrusion piece (507) is arranged to penetrate the bottom side wall of the heat conducting plate (3); The two pistons (402) are respectively fixed on both sides of the slider (504); a water supply pipe (3011) is provided on one side of the confluence groove (301); the water supply pipe (3011) is connected to one of the sleeves (401); and the water return pipe (306) is connected to the other sleeve (401); The extrusion piece (507) comprises a cylindrical portion located at the center and two prism portions located on the outer circumference of the cylindrical portion, and the cylindrical portion of the extrusion piece (507) passes through the center position of the bottom side wall of the heat conducting plate (3); The two prism parts are symmetrically arranged on both sides of the heat conducting plate (3), and the prism part includes an inclined surface located on the top surface thereof; A flow guide component is arranged at the bottom of the water inlet pipe (302), and the flow guide component comprises a pressure piece (6), a valve flap (601), a connecting rod (602), a guide block (603) and a return spring (604); the pressure piece (6) is in a "T" shape; the horizontal part of the pressure piece (6) is a cylindrical structure; the horizontal part of the pressure piece (6) is embedded in the inside of the water spray pipe (303); the vertical part of the pressure piece (6) passes through the bottom side wall of the water inlet pipe (302); the horizontal part of the pressure piece (6) is provided with a water hole; and the valve flap (601) is hinged to the upper surface of the horizontal part of the pressure piece (6); The connecting rod (602) is arranged along the width direction of the heat conducting plate (3), the connecting rod (602) is fixed to the bottom of the horizontal part of the pressure member (6), the guide block (603) is fixedly connected to the bottom of the connecting rod (602), the bottom of the guide block (603) includes a hemispherical part, the guide block (603) is arranged parallel to the extrusion member (507), and the return spring (604) is arranged on the surface of the connecting rod (602).

2. The waste heat collection device for solar photovoltaic panels according to claim 1, characterized in that: The water inlet pipes (302) include four water inlet pipes (302), which are evenly spaced and distributed on one side of the confluence trough (301), and the four water inlet pipes (302) are all embedded in an opening on one side of the heat conducting plate (3); Each of the water inlet pipes (302) is provided with water spray pipes (303) distributed at equal intervals.

3. The waste heat collection device for solar photovoltaic panels according to claim 1, characterized in that: The connecting rod (602) is orthogonally distributed with respect to the water inlet pipe (302), and the connecting rod (602) is arranged across four water inlet pipes (302); The number of the guide blocks (603) corresponds to the number of the water spray pipes (303), and the guide blocks (603) are arranged directly below the water spray pipes (303).

4. The waste heat collection device for solar photovoltaic panels according to claim 1, characterized in that: A drainage tube (6021) runs through the interior of the connecting rod (602), and the drainage tube (6021) is in the shape of a trumpet with an opening at the top expanding downward.

5. The waste heat collection device for solar photovoltaic panels according to claim 1, characterized in that: The connecting journal (503) is eccentrically mounted in the middle of the crankshaft (502); the slider (504) is elliptical in shape; and the slider (504) is embedded in the middle of the crankshaft (502); The two pistons (402) are symmetrically arranged on both sides of the slider (504).

6. The waste heat collection device for solar photovoltaic panels according to claim 1, characterized in that: A second one-way valve (3012) is installed inside the water supply pipe (3011), and a third one-way valve (3061) is installed inside the water return pipe (306). Both the water supply pipe (3011) and the water return pipe (306) are hoses.

7. The waste heat collection device for solar photovoltaic panels according to claim 1, characterized in that: A stepper motor (103) is provided on one side of the column (102), and an output end of the stepper motor (103) is transmission-connected to the photovoltaic panel (2).

8. The method for using the waste heat collection device of a solar photovoltaic panel according to any one of claims 1 to 7, characterized in that: S1: Through the coordinated action of the motor (5) and the reducer (501), the crankshaft (502) is driven to rotate back and forth, driving the connecting journal (503) to make a circular motion, and the connecting journal (503) reciprocates to squeeze the slider (504), causing the slider (504) to make a reciprocating linear motion, driving the piston (402) to reciprocate inside the sleeve (401), and under the action of negative pressure, the piston (402) sends the water in one of the storage tanks (4) to the water supply pipe (3011); S2: The piston (402) squeezes the water in the sleeve (401), so that the water flows through the confluence groove (301) and the water inlet pipe (302) in sequence and is sprayed out from the water spray pipe (303). The multiple water spray pipes (303) are arranged to spray the water to the side of the heat conduction plate (3) facing the photovoltaic panel (2) synchronously to perform heat exchange; S3: The crankshaft (502) drives the transmission shaft (505) and the universal joint (506) to rotate at the same time, driving the extrusion piece (507) to rotate inside the heat conducting plate (3), stirring the liquid inside the heat conducting plate (3), fully mixing the water flow, and ensuring that the heat conducting plate (3) and the water flow can fully exchange heat; S4: The water inside the heat conducting plate (3) is continuously sent to the water collecting pipe (304) and flows into the heat collecting pipe (305), and further absorbs solar energy through the heat collecting pipe (305) to increase the water temperature again; S5: Finally, the water in the heat collecting tube (305) flows into the return pipe (306), and flows into another storage tank (4) through the cooperation of another sleeve (401) and the piston (402), completing the collection of hot water for subsequent use.

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