Matrix type photovoltaic support used in sea area and photovoltaic power generation device

Abstract

The invention relates to the technical field of photovoltaic power generation, in particular to a matrix type photovoltaic support used in a sea area and a photovoltaic power generation device.According to the technical scheme, the matrix type photovoltaic support comprises a mounting plate, a floating disc, a photovoltaic assembly and a cleaning assembly, the floating disc is of a regular hexagon structure, and a balance weight groove is formed in the top of the floating disc; six connecting frames are installed on the edge of the floating disc through bolts. The first water spraying pipe and the second water spraying pipe are mounted on the outer side of the solar cell panel, and water can be sprayed on the top surface of the solar cell panel through the first water spraying pipe, so that the top of the solar cell panel is cleaned, and the power generation efficiency of the solar cell panel is prevented from being affected by surface dirt; water is sprayed to the top and the bottom of the solar cell panel through the first water spraying pipe and the second water spraying pipe, the temperature of the solar cell panel can be lowered, and therefore the situation that the power generation power of the device is affected by too high temperature of the solar cell panel due to offshore exposure is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic power generation, and in particular to a matrix photovoltaic support and a photovoltaic power generation device for use in sea areas. Background Art

[0002] Photovoltaic brackets for use in sea areas are core components of marine photovoltaic power generation systems. They are used to fix and support photovoltaic panels to maximize energy absorption. In order to improve the efficiency of photovoltaic power generation in sea areas, photovoltaic power generation devices in sea areas adopt a matrix layout. On the one hand, it expands the photovoltaic power generation area and improves the efficiency of photovoltaic power generation. On the other hand, through the matrix photovoltaic power generation device, the photovoltaic power generation device's resistance to waves and crosswinds at sea is improved, thereby improving the stability of photovoltaic power generation devices in sea areas.

[0003] After searching, the patent publication number CN220164137U discloses an offshore photovoltaic power generation system, including an array of photovoltaic brackets and an array of photovoltaic panels arranged on the photovoltaic brackets; the photovoltaic bracket is swingably connected to a first float for adaptively providing buoyancy; the photovoltaic bracket is provided with a second float, and is located above the first float, for secondary buoyancy to prevent sinking when facing big waves; adjacent photovoltaic brackets are connected by modular hinged components to prevent collision between adjacent photovoltaic brackets and limit the maximum displacement.

[0004] The prior art also has the following defects during use: 1. When the matrix photovoltaic bracket and photovoltaic power generation device used in the sea area in the prior art are used for photovoltaic power generation at sea, it is difficult and unstable to carry out manual operations at sea, and the photovoltaic power generation device at sea has a large laying area. Therefore, it is impossible to effectively clean and maintain the photovoltaic power generation device manually, which easily increases the failure rate of the photovoltaic power generation device; 2. When the matrix photovoltaic bracket and photovoltaic power generation device used in the sea area in the prior art float on the sea for photovoltaic power generation, since the main structural body in the device is located above the floating body, the center of gravity of the entire device is located above the liquid surface. When floating on the sea, it is very easy to be affected by waves and wind and tilt, which may cause damage to the photovoltaic power generation device.

[0005] In view of this, we propose a matrix photovoltaic bracket and photovoltaic power generation device for use in sea areas to solve the existing problems. Summary of the invention

[0006] The purpose of the present invention is to provide a matrix photovoltaic bracket and a photovoltaic power generation device for use in sea areas to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a matrix photovoltaic support and photovoltaic power generation device for use in sea areas, comprising a mounting plate, a floating plate, a photovoltaic assembly and a cleaning assembly, wherein the floating plate is a regular hexagonal structure, a counterweight groove is provided on the top of the floating plate, six connecting frames are installed on the edge of the floating plate by bolts, the connecting frames comprise two hollow tubular objects and a plurality of rope-like objects made of elastic materials, and the plurality of rope-like objects are fixedly installed between the two tubular objects; A mounting plate is fixedly mounted on the top of the floating plate, an electrical box is fixedly mounted on the top of the mounting plate, a plurality of groups of storage batteries and alternating current converters are fixedly mounted inside the electrical box, a water pump is fixedly mounted on one side of the top of the mounting plate, and a water pump pipe is fixedly mounted on the front of the water pump; A photovoltaic assembly is fixedly installed on the top of the mounting plate, and the photovoltaic assembly includes a solar panel. Two sets of support frames are fixedly installed on the bottom of the solar panel, and the solar panel is installed at an inclination of 20 degrees. A plurality of flow guide grooves are opened on the top of the solar panel, a first water spray pipe is fixedly installed on the higher side of the top of the solar panel, and a plurality of heat conduction grooves are fixedly installed on the bottom of the solar panel. The heat conduction grooves are hollow semicircular structures, a second water spray pipe is fixedly installed on the higher side of the bottom of the solar panel, and a plurality of nozzles are fixedly installed on the top of the second water spray pipe, and the nozzles extend to the inside of the heat conduction groove; A heat pipe is fixedly installed at the bottom of the floating plate, and a plurality of heat dissipation fins are arranged at the bottom of the heat pipe; A cleaning assembly is fixedly installed on the bottom of the floating plate.

[0008] Preferably, the cleaning assembly comprises a mounting plate, a shaft frame is rotatably mounted on the bottom of the mounting plate, and a mounting hole in a horizontal direction is arranged inside the shaft frame.

[0009] Preferably, a motor is fixedly mounted on one side of the shaft frame, and a flip roller is mounted on the output end of the motor through the shaft frame, a plurality of blades are arranged on the outside of the flip roller, and a plurality of drainage holes are opened inside the blades, and a card joint is fixedly mounted on the end of the flip roller away from the motor, and the card joint is a conical structure.

[0010] Preferably, a heat spreader is fixedly installed inside the mounting plate, and a heat conducting column is fixedly installed at the bottom of the heat spreader, and the heat conducting column is fixedly connected to the inner wall of the counterweight groove.

[0011] Preferably, a water inlet trough is provided on the side of the floating plate, and a filter screen is fixedly installed inside the water inlet trough, and a reinforcement beam is fixedly installed inside the floating plate, and the reinforcement beam is a regular hexagonal circular tubular structure.

[0012] Preferably, a water injection pipe is fixedly installed on one side of the first water spray pipe and the second water spray pipe, the water injection pipe is fixedly connected to a water pump, and a solenoid valve is fixedly installed at the connection position between the water injection pipe and the second water spray pipe.

[0013] Preferably, a guide groove is provided on the inner side of the heat conducting pipe, and the top end of the heat conducting pipe extends to the inside of the counterweight groove.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention installs a first water spray pipe and a second water spray pipe on the outer side of the solar panel, so that water can be sprayed on the top surface of the solar panel through the first water spray pipe, thereby cleaning the top of the solar panel and preventing the power generation efficiency of the solar panel from being affected by surface dirt. By spraying water on the top and bottom of the solar panel through the first water spray pipe and the second water spray pipe, the temperature of the solar panel can be reduced, thereby preventing the solar panel from being overheated due to exposure to the sun at sea and affecting the power generation of the device.

[0015] 2. The present invention installs a heat pipe and a cleaning component at the bottom of the floating plate, which can guide the heat of the floating plate and its interior through the heat pipe, so that the temperature inside the device is transferred to the seawater, and the seawater is used for heat dissipation. The heat pipe can hang heavy objects such as anchors to make the center of gravity of the entire device lower than the seawater level, thereby improving the stability of the device. While lowering the height of the center of gravity of the entire device, the cleaning component can also remove seaweed and shellfish attached to the bottom of the floating plate, thereby preventing the floating plate from being too heavy and sinking in the seawater. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of a first three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of a second three-dimensional structure of the present invention; Figure 3 It is a front structural schematic diagram of the present invention; Figure 4 It is a bottom-up three-dimensional structural schematic diagram of the present invention; Figure 5 It is a bottom view structural schematic diagram of the present invention; Figure 6 It is a schematic diagram of the first partial structure of the present invention; Figure 7 It is a schematic diagram of a second partial structure of the present invention; Figure 8 It is a schematic diagram of the photovoltaic module structure of the present invention; Fig. 9 It is a schematic diagram of the structure of the cleaning component of the present invention.

[0017] In the figure: 1. mounting plate; 101. heat-conducting column; 102. water pump; 103. water pump; 104. electrical box; 2. floating plate; 201. connecting frame; 202. counterweight groove; 203. filter screen; 204. water inlet groove; 205. reinforcing beam; 3. heat-conducting pipe; 301. cooling fin; 4. photovoltaic module; 401. heat-conducting groove; 402. solar cell panel; 403. guide groove; 404. first water spray pipe; 405. nozzle; 406. second water spray pipe; 407. water injection pipe; 408. support frame; 5. cleaning assembly; 501. mounting plate; 502. motor; 503. shaft frame; 504. flip roller; 505. card joint. DETAILED DESCRIPTION

[0018] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0019] Examples, such as Figure 1 - Fig. 9 As shown, the present invention proposes a matrix photovoltaic support and photovoltaic power generation device for use in the sea area, including a mounting plate 1, a floating plate 2, a photovoltaic module 4 and a cleaning module 5. The floating plate 2 is a regular hexagonal structure, and a counterweight groove 202 is opened on the top of the floating plate 2. Six connecting frames 201 are installed on the edge of the floating plate 2 by bolts. The connecting frame 201 includes two hollow tubular objects and a plurality of ropes made of elastic material, and the plurality of ropes are fixedly installed between the two tubular objects. The floating plate 2 can float on the water surface, thereby providing an installation position for the surrounding components. The counterweight groove 202 can be matched with the water inlet trough 204. The balancing frame 202 is combined to allow part of the seawater to enter the counterweight tank 202, thereby increasing the overall weight of the device. By increasing the overall weight of the device, the device can be prevented from being tilted by waves and strong winds, thereby improving the stability of the device when working on the sea surface. The connecting frame 201 can be fixedly connected to two adjacent groups of photovoltaic power generation devices, so that several photovoltaic power generation devices are combined into a large-area matrix photovoltaic power generation group, and when two adjacent groups of photovoltaic power generation devices are close to each other, the collision of the two adjacent groups of photovoltaic power generation devices can be avoided, so as to ensure the stability of the photovoltaic power generation device when working at sea; A mounting plate 1 is fixedly mounted on the top of the floating plate 2, an electrical box 104 is fixedly mounted on the top of the mounting plate 1, a plurality of groups of batteries and alternating current converters are fixedly mounted inside the electrical box 104, a water pump 103 is fixedly mounted on one side of the top of the mounting plate 1, and a water pump pipe 102 is fixedly mounted on the front of the water pump 103, the mounting plate 1 can provide a mounting position for the components on the top, and through the cooperation of the built-in heat spreader and the heat conducting column 101, the heat generated by the mounting plate 1 and its top components can be conducted to the seawater inside the counterweight tank 202, thereby improving the heat dissipation effect of the mounting plate 1 and its top components, the electrical box 104 can provide a mounting position for the batteries and the alternating current converter, and avoid the batteries and the alternating current converter from being heated. The inverter is damaged by water ingress and corroded by seawater. The direct current generated by the solar panel 402 is converted into alternating current through an alternating current converter, so that the electric energy is stored in the battery, and the battery provides electricity and electric energy transmission to the electrical components inside the device. The water pump 103 adopts the ZX45D-12 type. The front of the water pump 103 is connected to the water pump pipe 102 through a threaded structure. The seawater desalination device is installed. After the water pump pipe 102 is extended into the seawater, the water pump 103 pumps the seawater to the seawater desalination device, and then injects the fresh water into the first water spray pipe 404 and the second water spray pipe 406, so as to clean and cool the solar panel 402 and prevent the solar panel 402 from being corroded by long-term contact with seawater; The photovoltaic module 4 is fixedly installed on the top of the mounting plate 1. The photovoltaic module 4 includes a solar panel 402. Two sets of support frames 408 are fixedly installed on the bottom of the solar panel 402. The solar panel 402 is installed at an inclination of 20 degrees. A plurality of guide grooves 403 are opened on the top of the solar panel 402. A first water spray pipe 404 is fixedly installed on the higher side of the top of the solar panel 402. A plurality of heat conduction grooves 401 are fixedly installed on the bottom of the solar panel 402. The heat conduction grooves 401 are hollow semicircular structures. The bottom of the solar panel 402 is relatively high. A second water spray pipe 406 is fixedly installed on the high side, and a plurality of nozzles 405 are fixedly installed on the top of the second water spray pipe 406, and the nozzles 405 extend to the inside of the heat conduction groove 401. The solar panel 402 can convert solar energy into electrical energy, thereby generating direct current for photovoltaic power generation. There are four support frames 408, two of which are shorter, so that the support frame 408 can support the solar panel 402 and fix the solar panel 402 on the top of the mounting plate 1 at an inclination angle of 20 degrees, so that after the solar panel 402 is fixed , so that the solar panel 402 performs photovoltaic power generation, the guide groove 403 is made of transparent glass and is fixedly connected to the protective frame on the surface of the solar panel 402. The guide groove 403 can guide the water flow sprayed by the first water spray pipe 404 to flow on the surface of the solar panel 402, thereby ensuring the cleaning effect of the first water spray pipe 404 on the surface of the solar panel 402. The first water spray pipe 404 can spray the fresh water supplied by the water pump 103 vertically downward, thereby allowing the fresh water to flow through the top surface of the solar panel 402, thereby cleaning the top surface of the solar panel 402. The surface of the solar panel 402 is self-cleaning, so that the device can be cleaned independently of manual labor, and the efficiency of the solar panel 402 is guaranteed when working at sea. The heat-conducting groove 401 is made of stainless steel material, which can absorb the heat of the solar panel 402. The water flow sprayed by the second water spray pipe 406 conducts the heat absorbed by the heat-conducting groove 401, so that the bottom of the solar panel 402 is water-cooled to dissipate heat, thereby ensuring the power generation of the solar panel 402, and avoiding the solar panel 402 from reducing the power generation at high temperature and affecting the overall efficiency of the matrix photovoltaic power generation group; A heat pipe 3 is fixedly installed at the bottom of the floating plate 2. A plurality of heat dissipation fins 301 are arranged at the bottom of the heat pipe 3. The heat pipe 3 can guide the heat inside the floating plate 2 so that the heat inside the floating plate 2 is transferred to the seawater. The heat dissipation area is expanded with the heat dissipation fins 301 to improve the heat dissipation efficiency of the floating plate 2. The heat pipe 3 can also be used to hang fixed anchors, so as to fix each group of photovoltaic power generation devices in unstable sea areas and improve the overall stability of the matrix photovoltaic power generation group. A cleaning assembly 5 is fixedly installed at the bottom of the floating plate 2. The cleaning assembly 5 can clean the seaweed entangled at the bottom of the floating plate 2 and the shellfish attached to the bottom of the floating plate 2 to prevent a large amount of seaweed and shellfish from affecting the overall weight of the device.

[0020] Furthermore, the cleaning component 5 includes a mounting plate 501, the bottom of which is rotatably mounted with an axis frame 503, and the interior of the axis frame 503 is provided with a horizontal mounting hole, the mounting plate 501 can be fixedly connected to the bottom of the floating plate 2, thereby fixing the cleaning component 5 on the bottom of the floating plate 2, the axis frame 503 can rotate, thereby changing the position of the flip roller 504, and can provide an installation position for the motor 502 and the flip roller 504.

[0021] Furthermore, a motor 502 is fixedly installed on one side of the shaft frame 503, and a flip roller 504 is installed on the output end of the motor 502 through the shaft frame 503, a plurality of blades are arranged on the outer side of the flip roller 504, and a plurality of drainage holes are opened inside the blades, a clamping joint 505 is fixedly installed on the end of the flip roller 504 away from the motor 502, and the clamping joint 505 is a cone structure, and the motor 502 adopts the YE3-200KW type. After the motor 502 is energized, it can rotate, thereby driving the flip roller 504 and the clamping joint 505 to rotate, and the seaweed and shellfish at the bottom of the floating plate 2 are removed by the rotation of the flip roller 504, and at the same time, the clamping joint 505 contacts the heat pipe 3, so that the flip roller 504 and the motor 502 can perform a circular motion around the center of the shaft frame 503, so as to expand the range of action of the flip roller 504.

[0022] Furthermore, a heat spreader is fixedly installed inside the mounting plate 1, and a heat conductive column 101 is fixedly installed at the bottom of the heat spreader. The heat conductive column 101 is fixedly connected to the inner wall of the counterweight groove 202. The heat spreader can be connected to the bottom of the electrical box 104, thereby quickly absorbing the heat inside the electrical box 104 to dissipate the heat of the electrical box 104. The heat conductive column 101 can contact the seawater inside the counterweight groove 202, and then absorb the heat inside the mounting plate 1 and the floating plate 2 through the heat conductive column 101, and then conduct the heat to the seawater, thereby promoting the heat dissipation of the entire device.

[0023] Furthermore, a water inlet trough 204 is provided on the side of the floating plate 2, and a filter screen 203 is fixedly installed inside the water inlet trough 204. A reinforcement beam 205 is fixedly installed inside the floating plate 2, and the reinforcement beam 205 is a regular hexagonal tubular structure. The water inlet trough 204 can allow seawater to enter the counterweight tank 202 from the side of the floating plate 2, and the debris in the water is blocked by the filter screen 203, so that seawater enters the counterweight tank 202 until the seawater level inside the counterweight tank 202 is the same height as the seawater level outside the floating plate 2. The seawater is used to increase the counterweight of the floating plate 2, thereby improving the wind and wave resistance of the floating plate 2, avoiding the device from being tilted due to the influence of wind and waves at sea, thereby avoiding damage to the photovoltaic power generation device caused by tilting.

[0024] Furthermore, a water injection pipe 407 is fixedly installed on one side of the first water spray pipe 404 and the second water spray pipe 406, and the water injection pipe 407 is fixedly connected to the water pump 103. A solenoid valve is fixedly installed at the connection position between the water injection pipe 407 and the second water spray pipe 406. The water pump 103 extracts seawater and injects it into the first water spray pipe 404 and the second water spray pipe 406 after desalination, so that the fresh water is sprayed out from the top and bottom of the solar panel 402 respectively, and flows along the solar panel 402, so as to clean and dissipate heat for the solar panel 402.

[0025] Furthermore, a guide groove is opened on the inner side of the heat pipe 3, and the top end of the heat pipe 3 extends to the inside of the counterweight groove 202. The guide groove can be engaged with the clamping joint 505 to limit the flip roller 504 and guide the flip roller 504 to perform circular motion around the axis frame 503.

[0026] Working principle: After the device is assembled and confirmed to be correct, several devices are connected through the connecting frame 201 to form a matrix photovoltaic power generation group, and placed on the sea surface. The solar panel 402 converts solar energy into electrical energy, and the direct current is converted into alternating current through the alternating current converter and stored in the battery inside the electrical box 104. The water pump 103 sucks seawater through the water pumping pipe 102. After the seawater is desalinated by the seawater desalination device, it enters the first water spray pipe 404 and the second water spray pipe 406 for spraying out. After the water is sprayed out from the first water spray pipe 404, it flows along the top of the solar panel 402 to remove the dirt on the top surface of the solar panel 402. At the same time, the water is sprayed out through the second water spray pipe 406 and flows out from the heat conduction groove 401 at the bottom of the solar panel 402. The heat conduction groove 401 continuously absorbs the heat inside the solar panel 402, and the water flowing inside the heat conduction groove 401 discharges the absorbed heat to dissipate the heat of the solar panel 402. When seaweed is entangled or shellfish is attached to the bottom surface of the floating plate 2, the motor 502 is powered on to rotate, driving the flip roller 504 and the clamping joint 505 to rotate, and the flip roller 504 peels the seaweed and shellfish from the bottom of the floating plate 2. At the same time, the clamping joint 505, under the guidance of the heat pipe 3, drives the flip roller 504 and the motor 502 to make a circular motion around the shaft frame 503, so as to clean the bottom of the floating plate 2.

[0027] The above-mentioned specific embodiments are only several preferred embodiments of the present invention. Based on the technical solutions of the present invention and the relevant inspirations of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

Claims

1. A matrix photovoltaic support and photovoltaic power generation device for use in sea areas, comprising a mounting plate (1), a floating plate (2), a photovoltaic module (4) and a cleaning module (5), characterized in that: The floating plate (2) is a regular hexagonal structure, a counterweight groove (202) is provided on the top of the floating plate (2), six connecting frames (201) are installed on the edge of the floating plate (2) by means of bolts, the connecting frames (201) comprise two hollow tubular objects and a plurality of rope-like objects made of elastic material, and the plurality of rope-like objects are fixedly installed between the two tubular objects; A mounting plate (1) is fixedly mounted on the top of the floating plate (2), an electrical box (104) is fixedly mounted on the top of the mounting plate (1), a plurality of groups of storage batteries and alternating current converters are fixedly mounted inside the electrical box (104), a water pump (103) is fixedly mounted on one side of the top of the mounting plate (1), and a water pump pipe (102) is fixedly mounted on the front of the water pump (103); A photovoltaic assembly (4) is fixedly mounted on the top of the mounting plate (1), the photovoltaic assembly (4) comprising a solar panel (402), two sets of support frames (408) are fixedly mounted on the bottom of the solar panel (402), and the solar panel (402) is installed at an inclination of 20 degrees, a plurality of flow guide grooves (403) are opened on the top of the solar panel (402), a first water spray pipe (404) is fixedly mounted on the higher side of the top of the solar panel (402), a plurality of heat conduction grooves (401) are fixedly mounted on the bottom of the solar panel (402), the heat conduction grooves (401) are of a hollow semicircular structure, a second water spray pipe (406) is fixedly mounted on the higher side of the bottom of the solar panel (402), and a plurality of nozzles (405) are fixedly mounted on the top of the second water spray pipe (406), and the nozzles (405) extend into the interior of the heat conduction groove (401); A heat conducting pipe (3) is fixedly mounted on the bottom of the floating plate (2), and a plurality of heat dissipation fins (301) are arranged on the bottom of the heat conducting pipe (3); A cleaning assembly (5) is fixedly mounted on the bottom of the floating plate (2).

2. The matrix photovoltaic support and photovoltaic power generation device for use in sea areas according to claim 1, characterized in that: The cleaning assembly (5) comprises a mounting plate (501), a shaft frame (503) being rotatably mounted on the bottom of the mounting plate (501), and a mounting hole in a horizontal direction is arranged inside the shaft frame (503).

3. The matrix photovoltaic support and photovoltaic power generation device for use in sea areas according to claim 2, characterized in that: A motor (502) is fixedly mounted on one side of the shaft frame (503), and a turning roller (504) is mounted on the output end of the motor (502) through the shaft frame (503), a plurality of blades are arranged on the outside of the turning roller (504), and a plurality of drainage holes are opened inside the blades, and a clamping joint (505) is fixedly mounted on one end of the turning roller (504) away from the motor (502), and the clamping joint (505) is a conical structure.

4. The matrix photovoltaic support and photovoltaic power generation device for use in sea areas according to claim 1, characterized in that: A heat spreader is fixedly mounted inside the mounting plate (1), and a heat conducting column (101) is fixedly mounted at the bottom of the heat spreader, wherein the heat conducting column (101) is fixedly connected to the inner wall of the counterweight groove (202).

5. The matrix photovoltaic support and photovoltaic power generation device for use in sea areas according to claim 1, characterized in that: A water inlet trough (204) is provided on the side of the floating plate (2), and a filter screen (203) is fixedly installed inside the water inlet trough (204). A reinforcement beam (205) is fixedly installed inside the floating plate (2), and the reinforcement beam (205) is a regular hexagonal circular tube structure.

6. The matrix photovoltaic support and photovoltaic power generation device for use in sea areas according to claim 1, characterized in that: A water injection pipe (407) is fixedly installed on one side of the first water spray pipe (404) and the second water spray pipe (406); the water injection pipe (407) is fixedly connected to the water pump (103); and a solenoid valve is fixedly installed at the connection position between the water injection pipe (407) and the second water spray pipe (406).

7. The matrix photovoltaic support and photovoltaic power generation device for use in sea areas according to claim 1, characterized in that: A guide groove is provided on the inner side of the heat conducting pipe (3), and the top end of the heat conducting pipe (3) extends to the inside of the counterweight groove (202).

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