A photovoltaic waste heat utilization system

Abstract

The present invention relates to the technical field of photovoltaic waste heat utilization, and specifically relates to a photovoltaic waste heat utilization system, which includes a mounting frame and a photovoltaic panel. The photovoltaic panel is installed inside the mounting frame. A heat collection assembly is arranged below the photovoltaic panel. The heat collection assembly includes heat collection pipes, and the heat collection pipes are pasted on the lower surface of the photovoltaic panel. A first support frame is arranged on one side of the outer surface of the heat collection pipe, and a second support frame is arranged on the side of the outer surface of the heat collection pipe away from the first support frame. The second support frame is fixedly installed on the surface of the mounting frame. In this photovoltaic waste heat utilization system, the heat collection assembly can absorb the excess heat of the photovoltaic panel. On the one hand, it can heat domestic water, reduce power consumption, and improve the utilization rate of waste heat. On the other hand, it can cool the medium after heat absorption, cooperate with the stirring assembly to improve the cooling effect, and can improve the effect of absorbing heat next time, so as to achieve the purpose of cyclic heat absorption.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic waste heat utilization, and particularly to a photovoltaic waste heat utilization system. Background Art

[0002] Photovoltaic refers to a power generation system that directly converts solar radiant energy into electrical energy by using the photovoltaic effect of photovoltaic cells. Its absorbed energy comes from the inexhaustible and renewable solar energy. It is a clean, safe and renewable energy source. Moreover, the photovoltaic power generation process does not pollute the environment or damage the ecology, and has been rapidly popularized and entered people's lives. Many residential rooftops are paved with photovoltaic panels for household electricity.

[0003] However, only about 24% of the solar energy is converted into electrical energy by conventional photovoltaic panels. Its optimal operating temperature should be maintained below 25°C. Once the temperature exceeds this standard, its power generation efficiency will decrease accordingly. For every one-degree increase in temperature, the efficiency will decrease by 0.4 - 0.5%. In addition, too high a temperature not only affects the power generation efficiency of the photovoltaic panel, but also poses a threat to its service life. The high-temperature environment may cause the hot spot phenomenon of the photovoltaic panel, and in severe cases, it may even cause the photovoltaic module to catch fire, bringing major hidden dangers to the operation safety. Summary of the Invention

[0004] In view of the deficiencies of the prior art, the present invention provides a photovoltaic waste heat utilization system, which solves the problems raised in the above background art.

[0005] To achieve the above objectives, the present invention is realized through the following technical solutions: A photovoltaic waste heat utilization system includes a mounting frame and a photovoltaic panel. The photovoltaic panel is installed inside the mounting frame. A heat collection component is arranged below the photovoltaic panel. The heat collection component includes a heat collection pipe. The heat collection pipe is pasted on the lower surface of the photovoltaic panel. A first support frame is arranged on one side of the outer surface of the heat collection pipe. A second support frame is arranged on the side of the outer surface of the heat collection pipe away from the first support frame. The second support frame is fixedly installed on the surface of the mounting frame. The heat collection pipe is inside the first support frame and the second support frame;

[0006] A heat generation water pump box is fixedly installed on the outer surface of one end of the heat collection pipe. A first conduit is fixedly installed at one end of the heat generation water pump box. A first circulation water tank is fixedly installed at the end of the first conduit away from the heat generation water pump box. A cooling water pump box is fixedly installed at the end of the heat collection pipe away from the heat generation water pump box. A second conduit is fixedly installed at one end of the cooling water pump box. A second circulation water tank is fixedly installed at the end of the second conduit away from the cooling water pump box;

[0007] One end of the second circulation water tank away from the second conduit is fixedly installed with a third conduit. One end of the third conduit away from the second circulation water tank is fixedly installed with a heat exchanger. One end of the heat exchanger away from the third conduit is fixedly installed with a fourth conduit. One end of the fourth conduit away from the heat exchanger is fixedly connected to the first circulation water tank;

[0008] One end of the side of the heat exchanger away from the third conduit and the fourth conduit is fixedly installed with a first domestic water pipe. One end of the heat exchanger away from the first domestic water pipe is fixedly installed with a second domestic water pipe;

[0009] A heat generation component is arranged on the second circulation water tank, and the heat generation component is used to improve the waste heat utilization rate.

[0010] Optionally, the heat generation component includes a mounting member. The mounting member is fixedly installed at one end of the second circulation water tank away from the second conduit. A first gear is movably installed on the mounting member. The outer peripheral side of the first gear is engaged with a second gear, and the number of the second gears is greater than one;

[0011] A first bevel gear is fixedly installed in the middle of the upper second gear. The upper side of the first bevel gear is engaged with a second bevel gear. A first rotating shaft is fixedly installed in the middle of the upper surface of the second bevel gear. A fan blade is fixedly installed on the outer peripheral side of the upper end of the first rotating shaft;

[0012] A water passing groove is opened in the middle of the inner cavity of the second circulation water tank. A heat generation groove is opened near the edge of the inner cavity of the second circulation water tank. A heat preservation layer is arranged on the inner cavity wall of the heat generation groove away from the water passing groove. A friction layer is arranged on the inner cavity wall of the heat generation groove near the water passing groove;

[0013] A second rotating shaft is fixedly installed in the middle of the second gear. A friction member is fixedly sleeved on the outer surface of the second rotating shaft. A third rotating shaft is detachably installed in the middle of the first gear. A first stirring blade is fixedly installed on the outer surface of the third rotating shaft.

[0014] Optionally, a stirring component is arranged on the second gear near the heat exchanger side. The stirring component includes a first runner. The first runner is fixedly installed on the second rotating shaft in the middle of the second gear near the heat exchanger side;

[0015] The outer surface of the first runner is drivingly connected with a transmission belt. The side of the transmission belt away from the first runner is drivingly connected with a second runner. A fourth rotating shaft is fixedly installed in the middle of the second runner. A second stirring blade is fixedly installed on the outer surface of the fourth rotating shaft. The second stirring blade is in the inner cavity of the first circulation water tank. The fourth rotating shaft is movably connected with the first circulation water tank.

[0016] Optionally, a thermoelectric power generation device is provided in the first circulation water tank and the second circulation water tank. An induction coil is connected to the thermoelectric power generation device. The induction coil is sleeved on the outer peripheral side of the second circulation water tank, and the second circulation water tank is made of a good conductor metal.

[0017] Optionally, a fixing frame is fixedly installed on the upper surface of the second circulation water tank, and the first rotating shaft is movably connected to the fixing frame.

[0018] Optionally, the friction member is located in the heat generation groove, the first stirring blade is located in the water passing groove, and the second rotating shaft and the third rotating shaft are movably connected to the uniform installation member.

[0019] Optionally, when the friction member rotates, it contacts the friction layer and does not contact the heat insulation layer.

[0020] Optionally, the circumference of the first gear is four times that of the second gear, and the circumference of the second bevel gear is four times that of the first bevel gear.

[0021] The present invention provides a photovoltaic waste heat utilization system, which has the following beneficial effects:

[0022] 1. For this photovoltaic waste heat utilization system, the heat collecting component can absorb the excess heat of the photovoltaic panel. On the one hand, it can heat domestic water, reduce power consumption, and improve the utilization rate of waste heat. On the other hand, it can cool the medium after heat absorption, and cooperate with the stirring component to improve the cooling effect, so as to improve the effect of absorbing heat next time, thereby achieving the purpose of cyclic heat absorption.

[0023] 2. For this photovoltaic waste heat utilization system, the cooperation between the heat generation component and the stirring component can increase the temperature difference between the second circulation water tank and the first circulation water tank, improve the heating efficiency of the induction coil, and thus improve the heat exchange efficiency of the heat exchanger. In addition, the heat generation component can be used in winter with snowy weather to heat the medium, improve the power generation efficiency of the photovoltaic panel, and assist in snow melting and cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic structure of the present invention Figure 1 ;

[0025] Figure 2 It is a schematic structure of the present invention Figure 2 ;

[0026] Figure 3 It is a schematic structure of the present invention Figure 3 ;

[0027] Figure 4 It is a schematic structure of the present invention Figure 4 ;

[0028] Figure 5Schematic diagram of the internal structure of the first circulation water tank of the present invention;

[0029] Figure 6 Schematic diagram of the internal structure of the second circulation water tank of the present invention;

[0030] Figure 7 Schematic diagram of the structure at the first gear of the present invention;

[0031] Figure 8 Schematic cross-sectional structure diagram of the second circulation water tank of the present invention.

[0032] In the figure: 1. Mounting frame; 11. Photovoltaic panel; 2. Heat collecting pipe; 21. First support frame; 22. Second support frame; 23. Heat generating water pump box; 24. First conduit; 25. First circulation water tank; 26. Cooling water pump box; 27. Second conduit; 28. Second circulation water tank; 29. Third conduit; 210. Heat exchanger; 211. Fourth conduit; 212. First domestic water pipe; 213. Second domestic water pipe; 3. Mounting member; 31. First gear; 32. Second gear; 33. First bevel gear; 34. Second bevel gear; 35. First rotating shaft; 36. Fan blade; 37. Fixed frame; 38. Water through channel; 39. Heat generating groove; 310. Heat preservation layer; 311. Friction layer; 312. Second rotating shaft; 313. Friction member; 314. Third rotating shaft; 315. First stirring blade; 4. First runner; 41. Transmission belt; 42. Second runner; 43. Fourth rotating shaft; 44. Second stirring blade; 5. Thermoelectric generation device; 51. Induction coil. Detailed implementation manners

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0034] Embodiment 1: Please refer to Figures 1 to 5 , the present invention provides a technical solution: a photovoltaic waste heat utilization system, including a mounting frame 1 and a photovoltaic panel 11. The photovoltaic panel 11 is installed inside the mounting frame 1. A heat collecting assembly is provided below the photovoltaic panel 11. The heat collecting assembly includes a heat collecting pipe 2. The heat collecting pipe 2 is pasted on the lower surface of the photovoltaic panel 11. A first support frame 21 is provided on one side of the outer surface of the heat collecting pipe 2. A second support frame 22 is provided on the side of the outer surface of the heat collecting pipe 2 away from the first support frame 21. The second support frame 22 is fixedly installed on the surface of the mounting frame 1. The heat collecting pipe 2 is located inside the first support frame 21 and the second support frame 22;

[0035] On the outer surface of one end of the heat collecting pipe 2, a heat generating water pump box 23 is fixedly installed. One end of the heat generating water pump box 23 is fixedly installed with a first conduit 24. One end of the first conduit 24 away from the heat generating water pump box 23 is fixedly installed with a first circulation water tank 25. One end of the heat collecting pipe 2 away from the heat generating water pump box 23 is fixedly installed with a cooling water pump box 26. One end of the cooling water pump box 26 is fixedly installed with a second conduit 27. One end of the second conduit 27 away from the cooling water pump box 26 is fixedly installed with a second circulation water tank 28;

[0036] One end of the second circulation water tank 28 away from the second conduit 27 is fixedly installed with a third conduit 29. One end of the third conduit 29 away from the second circulation water tank 28 is fixedly installed with a heat exchanger 210. One end of the fourth conduit 211 away from the heat exchanger 210 is fixedly connected to the first circulation water tank 25;

[0037] One end of one side of the heat exchanger 210 away from the third conduit 29 and the fourth conduit 211 is fixedly installed with a first domestic water pipe 212. One end of the heat exchanger 210 away from the first domestic water pipe 212 is fixedly installed with a second domestic water pipe 213;

[0038] A heat generating component is arranged on the second circulation water tank 28, and the heat generating component is used to improve the utilization rate of waste heat.

[0039] Specifically, during use, cold water is input into the heat generating water pump box 23 as a cooling medium, and the cold water flows in the inner cavity of the heat collecting pipe 2. When the cold water passes through the photovoltaic panel 11, it will absorb the excess heat on the photovoltaic panel 11 and flow towards the cooling water pump box 26. In this way, the excess heat on the photovoltaic panel 11 can be absorbed, preventing the temperature of the photovoltaic panel 11 from being too high and affecting the power generation efficiency, and at the same time avoiding the risk of fire due to the too high temperature of the photovoltaic panel 11;

[0040] The water after absorbing heat will pass through the cooling water pump box 26 and enter the heat exchanger 210 through the second circulation water tank 28. At this time, domestic water is introduced into the heat exchanger 210 through the first domestic water pipe 212 for heat exchange. On the one hand, it can heat the domestic water, reduce the electricity consumption, and improve the utilization rate of waste heat. On the other hand, it can cool the medium after absorbing heat, improving the effect of heat absorption in the next time, so as to achieve the purpose of cyclic heat absorption.

[0041] Embodiment 2: Please refer to Figures 5 to 8 , the heat generating component includes a mounting member 3. The mounting member 3 is fixedly installed at one end of the second circulation water tank 28 away from the second conduit 27. A first gear 31 is movably installed on the mounting member 3. The outer peripheral side of the first gear 31 is engaged with a second gear 32, and the number of the second gears 32 is greater than one;

[0042] A first bevel gear 33 is fixedly installed in the middle of the second gear 32 on the upper side. A second bevel gear 34 is meshed with the upper side of the first bevel gear 33. A first rotating shaft 35 is fixedly installed in the middle of the upper surface of the second bevel gear 34. A fan blade 36 is fixedly installed on the outer peripheral side of the upper end of the first rotating shaft 35;

[0043] A water passing groove 38 is provided in the middle of the inner cavity of the second circulation water tank 28. A heat generating groove 39 is provided near the edge of the inner cavity of the second circulation water tank 28. A heat preservation layer 310 is provided on the inner cavity wall of the heat generating groove 39 far away from the water passing groove 38. A friction layer 311 is provided on the inner cavity wall of the heat generating groove 39 near the water passing groove 38;

[0044] A second rotating shaft 312 is fixedly installed in the middle of the second gear 32. A friction member 313 is fixedly sleeved on the outer surface of the second rotating shaft 312. A third rotating shaft 314 is detachably installed in the middle of the first gear 31. A first stirring blade 315 is fixedly installed on the outer surface of the third rotating shaft 314;

[0045] A fixing frame 37 is fixedly installed on the upper surface of the second circulation water tank 28. The first rotating shaft 35 is movably connected to the fixing frame 37.

[0046] The friction member 313 is located in the heat generating groove 39. The first stirring blade 315 is located in the water passing groove 38. The second rotating shaft 312 and the third rotating shaft 314 are both movably connected to the mounting member 3.

[0047] When the friction member 313 rotates, it contacts the friction layer 311 and does not contact the heat preservation layer 310.

[0048] The circumference of the first gear 31 is four times that of the second gear 32. The circumference of the second bevel gear 34 is four times that of the first bevel gear 33;

[0049] A stirring assembly is provided on the second gear 32 on the side close to the heat exchanger 210. The stirring assembly includes a first runner 4. The first runner 4 is fixedly installed on the second rotating shaft 312 in the middle of the second gear 32 on the side close to the heat exchanger 210;

[0050] The outer surface of the first runner 4 is drivingly connected to a transmission belt 41. The side of the transmission belt 41 far away from the first runner 4 is drivingly connected to a second runner 42. A fourth rotating shaft 43 is fixedly installed in the middle of the second runner 42. A second stirring blade 44 is fixedly installed on the outer surface of the fourth rotating shaft 43. The second stirring blade 44 is located in the inner cavity of the first circulation water tank 25. The fourth rotating shaft 43 is movably connected to the first circulation water tank 25.

[0051] A thermoelectric power generation device 5 is provided in the first circulation water tank 25 and the second circulation water tank 28. An induction coil 51 is connected to the thermoelectric power generation device 5. The induction coil 51 is sleeved on the outer periphery of the second circulation water tank 28. The second circulation water tank 28 is made of a good conductor metal.

[0052] For household photovoltaic applications, it is usually installed on the rooftops of residential buildings to avoid sunlight obstruction by other buildings and improve the photovoltaic power generation efficiency. At the same time, without obstruction on the rooftop, the wind can directly act on the fan blade 36, causing the fan blade 36 to drive the first rotating shaft 35 to rotate. The first rotating shaft 35 can drive the second bevel gear 34 to rotate, causing the second bevel gear 34 to drive the first bevel gear 33 to rotate. The first bevel gear 33 can drive the second gear 32 to rotate, causing the second gear 32 to drive the first gear 31 to rotate, thereby causing other second gears 32 to rotate;

[0053] When the second gear 32 rotates, it will drive the second rotating shaft 312 to rotate, causing the second rotating shaft 312 to drive the friction member 313 to rotate. The friction between the friction member 313 and the friction layer 311 can generate heat, thereby heating the water in the water passing trough 38 and improving the heat exchange efficiency of domestic water;

[0054] Furthermore, the thermoelectric power generation device 5 can generate electricity by using the temperature difference between the first circulation water tank 25 and the second circulation water tank 28. Cooperating with the induction coil 51 can heat the second circulation water tank 28, further improving the heat exchange efficiency of domestic water. When the second gear 32 rotates, it can drive the first runner 4 to rotate, causing the first runner 4 to drive the transmission belt 41. The transmission belt 41 can drive the second runner 42 to rotate, causing the second runner 42 to drive the fourth rotating shaft 43 to rotate, thereby causing the second stirring blade 44 to stir the medium in the inner cavity of the first circulation water tank 25, assisting the first circulation water tank 25 in dissipating heat from the medium and improving the cooling effect of the first circulation water tank 25, making the heat absorption efficiency of the heat collecting pipe 2 higher. Cooperating with the friction member 313 to heat the medium in the second circulation water tank 28 can increase the temperature difference between the media in the first circulation water tank 25 and the second circulation water tank 28, thereby improving the power generation effect of the thermoelectric power generation device 5, promoting the temperature rise of the water in the second circulation water tank 28, and further improving the domestic water heating effect. It should be noted that the connection between the third rotating shaft 314 and the first gear 31 must be disconnected to avoid heat dissipation caused by the rotation of the first stirring blade 315 and affecting the heating of the medium;

[0055] Furthermore, in winter, it is necessary to drain the medium in the inner cavities of the first circulation water tank 25 and the second circulation water tank 28 to prevent it from freezing inside and causing pipeline cracking. However, in areas where it often blows, it is not necessary to drain the medium. The wind can drive the friction member 313 to rotate to heat the medium in the inner cavity of the second circulation water tank 28. At this time, the third rotating shaft 314 needs to be fixedly connected to the first gear 31. When the first gear 31 rotates, it drives the third rotating shaft 314 to rotate. Thus, the third rotating shaft 314 rotates. Since the circumference of the first gear 31 is four times that of the second gear 32, the rotation speed of the first gear 31 will be slower at this time, so that the first stirring blade 315 rotates slowly in the water passing groove 38, then agitates the medium, further preventing the medium from freezing and at the same time reducing the heat dissipation effect of the medium;

[0056] When the second gear 32 rotates, it will drive the first runner 4 to rotate, so that the second stirring blade 44 rotates. At this time, the second stirring blade 44 will agitate the medium in the first circulation water tank 25 to prevent it from freezing. The next day, the medium can flow, and the heat of the medium can be used to heat the photovoltaic, improving the photovoltaic power generation efficiency;

[0057] In addition, in case of snowy or windy weather, for the snow on the surface of some photovoltaics, the medium carrying heat can be used to assist in melting the snow, providing help for snow removal. It should be noted that in winter, the heat exchange of the heat exchanger 210 must be disconnected to avoid the heat of the medium being absorbed by domestic water.

[0058] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A photovoltaic waste heat utilization system, comprising a mounting frame (1) and a photovoltaic panel (11), wherein the photovoltaic panel (11) is installed inside the mounting frame (1), and is characterized in that: A heat collection component is arranged on the lower side of the photovoltaic panel (11). The heat collection component includes a heat collection pipe (2). The heat collection pipe (2) is adhered to the lower surface of the photovoltaic panel (11). A first support frame (21) is arranged on one side of the outer surface of the heat collection pipe (2). A second support frame (22) is arranged on the side of the outer surface of the heat collection pipe (2) away from the first support frame (21). The second support frame (22) is fixedly installed on the surface of the mounting frame (1). The heat collection pipe (2) is located inside the first support frame (21) and the second support frame (22). A heat generation water collecting pump box (23) is fixedly installed on the outer surface of one end of the heat collection pipe (2). A first conduit (24) is fixedly installed at one end of the heat generation water collecting pump box (23). A first circulation water tank (25) is fixedly installed at the end of the first conduit (24) away from the heat generation water collecting pump box (23). A cooling water collecting pump box (26) is fixedly installed at the end of the heat collection pipe (2) away from the heat generation water collecting pump box (23). A second conduit (27) is fixedly installed at one end of the cooling water collecting pump box (26). A second circulation water tank (28) is fixedly installed at the end of the second conduit (27) away from the cooling water collecting pump box (26). A third conduit (29) is fixedly installed at the end of the second circulation water tank (28) away from the second conduit (27). A heat exchanger (210) is fixedly installed at the end of the third conduit (29) away from the second circulation water tank (28). A fourth conduit (211) is fixedly installed at the end of the heat exchanger (210) away from the third conduit (29). The end of the fourth conduit (211) away from the heat exchanger (210) is fixedly connected to the first circulation water tank (25). One end of the side of the heat exchanger (210) away from the third conduit (29) and the fourth conduit (211) is fixedly installed with a first domestic water pipe (212). A second domestic water pipe (213) is fixedly installed at the end of the heat exchanger (210) away from the first domestic water pipe (212). A heat generation component is arranged on the second circulation water tank (28). The heat generation component is used to improve the waste heat utilization rate.

2. The photovoltaic waste heat utilization system according to claim 1, characterized in that: The heat generation component includes a mounting member (3). The mounting member (3) is fixedly installed at the end of the second circulation water tank (28) away from the second conduit (27). A first gear (31) is movably installed on the mounting member (3). The outer peripheral side of the first gear (31) is engaged with a second gear (32), and the number of the second gears (32) is more than one. A first bevel gear (33) is fixedly installed in the middle of the upper second gear (32). The upper side of the first bevel gear (33) is engaged with a second bevel gear (34). A first rotating shaft (35) is fixedly installed in the middle of the upper surface of the second bevel gear (34). A fan blade (36) is fixedly installed on the outer peripheral side of the upper end of the first rotating shaft (35). In the middle of the inner cavity of the second circulation water tank (28), a water channel (38) is provided. Near the edge of the inner cavity of the second circulation water tank (28), a heat generation groove (39) is provided. On the inner cavity wall of the heat generation groove (39) far from the water channel (38), a heat insulation layer (310) is provided. On the inner cavity wall of the heat generation groove (39) near the water channel (38), a friction layer (311) is provided; In the middle of the second gear (32), a second rotating shaft (312) is fixedly installed. On the outer surface of the second rotating shaft (312), a friction member (313) is fixedly sleeved. In the middle of the first gear (31), a third rotating shaft (314) is detachably installed. On the outer surface of the third rotating shaft (314), a first stirring blade (315) is fixedly installed.

3. A photovoltaic waste heat utilization system according to claim 2, characterized in that: On the second gear (32) near the heat exchanger (210), a stirring assembly is provided. The stirring assembly includes a first runner (4). The first runner (4) is fixedly installed on the second rotating shaft (312) in the middle of the second gear (32) near the heat exchanger (210); On the outer surface of the first runner (4), a transmission belt (41) is drivingly connected. On the side of the transmission belt (41) far from the first runner (4), a second runner (42) is drivingly connected. In the middle of the second runner (42), a fourth rotating shaft (43) is fixedly installed. On the outer surface of the fourth rotating shaft (43), a second stirring blade (44) is fixedly installed. The second stirring blade (44) is in the inner cavity of the first circulation water tank (25). The fourth rotating shaft (43) is movably connected to the first circulation water tank (25).

4. The photovoltaic waste heat utilization system according to claim 3, characterized in that: In the first circulation water tank (25) and the second circulation water tank (28), a thermoelectric power generation device (5) is provided. The thermoelectric power generation device (5) is connected with an induction coil (51). The induction coil (51) is sleeved on the outer peripheral side of the second circulation water tank (28). The second circulation water tank (28) is made of a good conductor metal.

5. A photovoltaic waste heat utilization system according to claim 4, characterized in that: On the upper surface of the second circulation water tank (28), a fixing frame (37) is fixedly installed. The first rotating shaft (35) is movably connected to the fixing frame (37).

6. A photovoltaic waste heat utilization system according to claim 5, characterized in that: The friction member (313) is in the heat generation groove (39). The first stirring blade (315) is in the water channel (38). The second rotating shaft (312) and the third rotating shaft (314) are movably connected by a uniform installation member (3).

7. A photovoltaic waste heat utilization system according to claim 6, characterized in that: When the friction member (313) rotates, it contacts the friction layer (311) and does not contact the heat insulation layer (310).

8. A photovoltaic waste heat utilization system according to claim 7, characterized in that: The perimeter of the first gear (31) is four times that of the second gear (32). The perimeter of the second bevel gear (34) is four times that of the first bevel gear (33).

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