Offshore photovoltaic device and installation method thereof

Abstract

The invention relates to the technical field of offshore photovoltaic, and particularly discloses an offshore photovoltaic device and an installation method thereof.The device comprises a floating plate and an expansion mechanism located on the outer wall of the floating plate and used for expanding a marine organism attachment area, a plurality of evenly-distributed floating boxes are installed on the periphery of the floating plate, a bearing plate is fixed to the top of the floating plate, and a photovoltaic plate is arranged on the bearing plate; the expansion mechanism comprises a plurality of fixing grooves formed in the outer wall of the floating plate, rotating shafts are installed in the fixing grooves, an inclined plate is fixed to one side of each rotating shaft, and a plurality of evenly-distributed attachment holes are formed in each inclined plate. Through the arrangement of the extension mechanism, extension of the outer wall of the floating plate can be achieved, more marine organism attachment areas are provided, and inhabiting and breeding places can be provided for various marine organisms, so that the biodiversity of the areas is increased, the marine ecological system is protected and recovered, fishery resources and fishery economy are improved, and the floating plate is suitable for popularization and application. Meanwhile, data about water quality, pollutants and other environmental factors can be more easily collected.

Description

Technical Field

[0001] The present invention relates to the field of offshore photovoltaic technology, and in particular to an offshore photovoltaic device and an installation method thereof. Background Art

[0002] Offshore photovoltaic installations are a new type of energy system that uses ocean space for solar power generation. They are composed of floating solar panels installed on floating platforms designed specifically for offshore environments. The platforms are usually made of corrosion-resistant materials and can withstand the impact of waves and currents. Offshore photovoltaic installations can not only effectively utilize ocean space, but also have a lower land occupancy rate and environmental impact. They can provide stable and continuous clean energy and are one of the important directions for the future development of renewable energy.

[0003] Traditional devices are clean energy facilities that use ocean space for solar power generation. Their core is composed of a corrosion-resistant floating platform carrying solar panels. By effectively utilizing ocean space, land occupation and environmental impact are reduced. However, it is difficult to expand the marine biological attachment area during the installation process. The lack of natural biological attachment areas will reduce the biodiversity on the seabed, resulting in damage to the balance of the ecosystem, affecting fishery resources and thus affecting the fishery economy. At the same time, the lack of attachment areas will make environmental monitoring more difficult and lead to uncontrolled reproduction of alien species. Summary of the invention

[0004] The purpose of the present invention is to provide an offshore photovoltaic device and an installation method thereof, so as to solve the problem of no marine organism attachment area in the background technology.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] An offshore photovoltaic device, comprising:

[0007] A floating plate, wherein a plurality of evenly distributed buoyancy boxes are installed around the floating plate, a receiving plate is fixed on the top of the floating plate, a photovoltaic panel is arranged on the top of the receiving plate, and a plurality of evenly distributed connecting blocks are fixed between the floating plate and the photovoltaic panel;

[0008] An expansion mechanism is located on the outer wall of the floating plate and is used to expand the attachment area of ​​marine organisms. The expansion mechanism includes a plurality of fixed grooves opened on the outer wall of the floating plate, and a rotating shaft is installed inside the plurality of fixed grooves. An inclined plate is fixed on one side of the rotating shaft, and a plurality of evenly distributed attachment holes are opened inside the inclined plate. A resistance plate corresponding to the inclined plate is fixed on one side of the floating plate, and a resistance strip is fixed on the bottom of the floating plate, and an inclined surface is fixed on one side of the resistance strip, and the inclined surface cooperates with the inclined plate.

[0009] Preferably, a lifting mechanism for adjusting the lifting of the photovoltaic panel is provided between the photovoltaic panel and the receiving plate, the lifting mechanism comprises a telescopic rod fixed to the bottom of the photovoltaic panel and a lifting seat fixed to the top of the receiving plate, an electric push rod is fixed to the bottom of the lifting seat, and the telescopic end of the electric push rod is connected to the telescopic rod.

[0010] Preferably, a plurality of evenly distributed positioning blocks are fixed to the outer wall of the telescopic rod, and a plurality of positioning grooves for the positioning blocks to slide are provided inside the top of the lifting seat.

[0011] Preferably, a plurality of evenly distributed positioning rods are fixed to the bottom of the photovoltaic panel, the plurality of positioning rods are all plugged into the receiving plate, and sealing sleeves are installed between the plurality of positioning rods and the receiving plate.

[0012] Preferably, a plurality of receiving seats are fixed on the top of the receiving plate, and a plurality of the receiving seats are each provided with a resistance groove matched with the photovoltaic panel on the top, and a plurality of evenly distributed water leakage holes are provided on one side of the resistance groove.

[0013] Preferably, a cleaning mechanism for cleaning the photovoltaic panel is provided on the top of the receiving plate, and the cleaning mechanism includes a water tank fixed to the bottom of the floating plate, a water supply pump is installed inside the water tank, and a water supply pipe is connected to the water outlet end of the water supply pump. The water supply pipe extends to the top of the receiving plate and is provided with a spraying assembly for spraying the photovoltaic panel.

[0014] Preferably, the spray assembly includes a guide tube fixed on the top of the water supply pipe, the guide tube and the photovoltaic panel are staggered, and one side of the guide tube is connected to a plurality of evenly distributed water spray pipes, and the water outlet ends of the plurality of water spray pipes all correspond to the photovoltaic panel.

[0015] Preferably, a reinforcement seat is fixed to the outer wall of the water supply pipe, two support rods are fixed to the bottom of the reinforcement seat, and the two support rods are connected to the top of the receiving plate.

[0016] Preferably, a plurality of evenly distributed collection boxes are fixed to the top of the receiving plate, a guide pipe is connected to one side of the bottom of each of the collection boxes, one end of each of the guide pipes is commonly connected to a water inlet pipe, the water inlet pipe is connected to a water tank, and a reinforcement plate is connected between the top of the water tank and the floating plate.

[0017] A method for installing an offshore photovoltaic device, used for installing any of the above-mentioned offshore photovoltaic devices, comprises the following steps:

[0018] S1. Install the water tank on the bottom of the floating plate through multiple reinforcement plates, fix multiple collection boxes on the top of the receiving plate respectively, and then place the floating plate on the sea, and increase its buoyancy through multiple evenly distributed floating boxes so that it is above the sea surface;

[0019] S2. Install the receiving plate through a plurality of evenly distributed connection blocks. After the receiving plate is installed, the photovoltaic panel can be effectively supported. Then, the collection box is connected to the water tank through the guide pipe and the water inlet pipe;

[0020] S3. By setting a plurality of inclined plates, after the floating plates are installed, the inclined plates can float on the top of the sea surface, thereby expanding the attachment area of ​​marine organisms;

[0021] S4, driving the telescopic rod to move up and down by an electric push rod, and the up and down movement of the telescopic rod drives the photovoltaic panel to move synchronously, thereby adjusting the height of the photovoltaic panel;

[0022] S5. By setting up a plurality of collection boxes, part of the rainwater can be collected in rainy weather, and the collected rainwater can enter the water tank through the cooperation between the diversion pipe and the water inlet pipe;

[0023] S6. The photovoltaic panel is adjusted to the bottom again by the lifting mechanism so as to facilitate cleaning thereof by rainwater;

[0024] S7. According to S6: the rainwater collected in the water tank is transported to the water supply pipe through a water supply pump, and sprayed out through a plurality of evenly distributed water spray pipes, so that the rainwater falls on the top of the photovoltaic panel, thereby achieving the effect of spraying and cleaning the photovoltaic panel.

[0025] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0026] 1. The present invention can expand the outer wall of the floating plate by setting up the expansion mechanism, provide more marine organism attachment areas, and provide a place for a variety of marine organisms to live and reproduce, thereby increasing the biodiversity of the region, helping to protect and restore the marine ecosystem, improve fishery resources and fishery economy, and at the same time, it can more easily collect data on water quality, pollutants and other environmental factors, solving the problem that the lack of attachment areas in traditional devices makes environmental monitoring more difficult and leads to uncontrolled reproduction of alien species;

[0027] 2. The present invention can adjust the height of the photovoltaic panel by setting a lifting mechanism. According to the angle and intensity of sunlight in different time periods, the height of the photovoltaic panel can be adjusted to maximize the energy collection efficiency, thereby maintaining efficient power generation. By adjusting the height of the photovoltaic panel, the panel surface can be prevented from being submerged at high tide, and an effective photovoltaic panel layout can be maintained at low tide, thereby ensuring that the device can operate normally under various tidal conditions. At the same time, when encountering severe weather or storms, raising the photovoltaic panel can reduce the impact of waves and strong winds on the device, improve the stability of the device, and reduce the risk of damage caused by strong winds or waves;

[0028] 3. The present invention can collect part of the rainwater through the setting of the cleaning mechanism, and use the rainwater to clean the photovoltaic panels, remove surface dirt and salt deposits, maintain high-efficiency operation, and improve power generation efficiency by continuously ensuring the cleanliness of the photovoltaic panels, making the power output more stable and reliable, reducing the need for manual intervention, and improving the convenience of operation and the reliability of the system. At the same time, cleaning can prevent the long-term accumulation of salt and dirt, reduce the erosion of photovoltaic panel materials, and thus extend their service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0030] Figure 2 It is a schematic diagram of the structure of the floating plate and the receiving plate of the present invention when they are disassembled;

[0031] Figure 3 It is a structural schematic diagram of the floating plate of the present invention;

[0032] Figure 4 It is a structural schematic diagram of the inclined plate of the present invention;

[0033] Figure 5 It is a schematic diagram of the structure of the inclined plate and the floating plate of the present invention when they are disassembled;

[0034] Figure 6 It is a structural schematic diagram of the lifting mechanism of the present invention;

[0035] Figure 7 is a cross-sectional view of the lifting mechanism of the present invention;

[0036] Figure 8 This is one of the structural schematic diagrams of the cleaning mechanism of the present invention;

[0037] Fig. 9 This is the second structural schematic diagram of the cleaning mechanism of the present invention.

[0038] Among them: 1. floating plate; 2. photovoltaic panel; 3. inclined plate; 4. lifting mechanism; 5. cleaning mechanism; 6. receiving plate; 7. sealing sleeve; 8. floating box; 9. connecting block; 10. contact plate; 11. contact strip; 12. rotating shaft; 13. receiving seat;

[0039] 41. Lifting seat; 42. Positioning rod; 43. Electric push rod; 44. Telescopic rod; 45. Positioning block;

[0040] 51. Collection box; 52. Diversion pipe; 53. Water supply pipe; 54. Guide pipe; 55. Water tank; 56. Reinforcement plate; 57. Water supply pump; 58. Reinforcement seat; 59. Water spray pipe. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] See also Figure 1 and Figure 2 , an offshore photovoltaic device, comprising:

[0043] A floating plate 1, a plurality of evenly distributed buoyancy boxes 8 are installed around the floating plate 1, a receiving plate 6 is fixed on the top of the floating plate 1, a photovoltaic panel 2 is arranged on the top of the receiving plate 6, and a plurality of evenly distributed connection blocks 9 are fixed between the floating plate 1 and the photovoltaic panel 2;

[0044] Please refer to Figure 2 - Figure 5 , an expansion mechanism, the expansion mechanism is located on the outer wall of the floating plate 1 and is used to expand the attachment area of ​​marine organisms, the expansion mechanism includes a plurality of fixed grooves opened on the outer wall of the floating plate 1, a rotating shaft 12 is installed inside the plurality of fixed grooves, a slanted plate 3 is fixed on one side of the rotating shaft 12, a plurality of evenly distributed attachment holes are opened inside the slanted plate 3, a contact plate 10 corresponding to the slanted plate 3 is fixed on one side of the floating plate 1, and a contact strip 11 is fixed on the bottom of the floating plate 1, an inclined surface is fixed on one side of the contact strip 11, and the inclined surface matches the slanted plate 3;

[0045] By installing the floating plate 1, the inclined plate 3 is first in contact with the sea surface. The floating plate 1 is continuously moved downward and the contact strip 11 drives the inclined surface and the inclined plate 3 to contact each other, so that the inclined plate 3 is inclined. After the floating plate 1 is installed, the inclined plate 3 forms a tendency under the support of buoyancy, so that it is convenient for marine organisms to attach. By setting the contact plate 10, the inclined plate 3 will not easily rotate 90 degrees under the action of buoyancy, thereby improving the stability of the inclined plate 3. By setting the inclined plate 3, the outer wall of the floating plate 1 can be expanded to provide more marine organism attachment areas, which can provide a place for a variety of marine organisms to live and reproduce, thereby increasing the biodiversity of the region, helping to protect and restore the marine ecosystem, improve fishery resources and fishery economy, and at the same time, it can be easier to collect data on water quality, pollutants and other environmental factors, solving the problem that the lack of attachment areas in traditional devices makes environmental monitoring more difficult and leads to uncontrolled reproduction of alien species.

[0046] Please refer to Figure 6 and Figure 7A lifting mechanism 4 for adjusting the lifting of the photovoltaic panel 2 is arranged between the photovoltaic panel 2 and the receiving plate 6. The lifting mechanism 4 includes a telescopic rod 44 fixed to the bottom of the photovoltaic panel 2 and a lifting seat 41 fixed to the top of the receiving plate 6. An electric push rod 43 is fixed to the bottom of the lifting seat 41. The telescopic end of the electric push rod 43 is connected to the telescopic rod 44. A plurality of evenly distributed positioning blocks 45 are fixed to the outer wall of the telescopic rod 44. A plurality of positioning grooves for the positioning blocks 45 to slide are provided inside the top of the lifting seat 41. A plurality of evenly distributed positioning rods 42 are fixed to the bottom of the photovoltaic panel 2. The plurality of positioning rods 42 are all plugged into the receiving plate 6, and sealing sleeves 7 are installed between the plurality of positioning rods 42 and the receiving plate 6. A plurality of receiving seats 13 are fixed to the top of the receiving plate 6. The tops of the plurality of receiving seats 13 are all provided with a resistance groove matching the photovoltaic panel 2, and a plurality of evenly distributed water leakage holes are provided on one side of the resistance groove.

[0047] The telescopic rod 44 is driven by the electric push rod 43 to move in the lifting seat 41, and the movement of the telescopic rod 44 drives the photovoltaic panel 2 to move, so that the height of the photovoltaic panel 2 can be adjusted. According to the angle and intensity of sunlight in different time periods, the height of the photovoltaic panel 2 can be adjusted to maximize the energy collection efficiency, thereby maintaining efficient power generation. By adjusting the height of the photovoltaic panel 2, the panel surface can be prevented from being submerged at high tide, and an effective photovoltaic panel 2 layout can be maintained at low tide, thereby ensuring that the device can operate normally under various tidal conditions. At the same time, when encountering severe weather or storms, raising the photovoltaic panel 2 can reduce the impact of waves and strong winds on the device, improve the stability of the device, and reduce the risk of damage caused by strong winds or waves. The telescopic rod 44 drives multiple positioning blocks 45 to move during the movement. The photovoltaic panel 2 can be moved by setting a plurality of positioning grooves, so that the telescopic rod 44 is more stable during the movement and will not shake easily. The photovoltaic panel 2 drives a plurality of positioning rods 42 to move during the movement. The mutual connection between the positioning rods 42 and the receiving plate 6 greatly improves the stability of the photovoltaic panel 2 during adjustment. The sealing sleeve 7 is set so that the positioning rods 42 can maintain the sealing effect of the receiving plate 6 during the movement, and reduce the situation where the bottom seawater follows the positioning rods 42 to enter the top of the receiving plate 6. When the photovoltaic panel 2 moves to the lowest bottom, it is in conflict with the receiving seat 13. The receiving groove is set to make the photovoltaic panel 2 more stable during the contact process. The water source inside the receiving seat 13 can be effectively discharged through the setting of a plurality of leakage holes, avoiding the accumulation inside the receiving seat 13.

[0048] Please also refer to Figure 8 and Fig. 9A cleaning mechanism 5 for cleaning the photovoltaic panel 2 is provided on the top of the receiving plate 6. The cleaning mechanism 5 includes a water tank 55 fixed to the bottom of the floating plate 1. A water supply pump 57 is installed inside the water tank 55. The water outlet of the water supply pump 57 is connected to a water supply pipe 53. The water supply pipe 53 extends to the top of the receiving plate 6 and is provided with a spraying assembly for spraying the photovoltaic panel 2. The spraying assembly includes a guide pipe 54 fixed to the top of the water supply pipe 53. The guide pipe 54 and the photovoltaic panel 2 are interlaced with each other, and one side of the guide pipe 54 is connected to a plurality of evenly distributed sprays. Water pipe 59, the water outlet ends of multiple water spray pipes 59 are all corresponding to the photovoltaic panel 2, the outer wall of the water supply pipe 53 is fixed with a reinforcement seat 58, the bottom of the reinforcement seat 58 is fixed with two support rods, the two support rods are connected to the top of the receiving plate 6, the top of the receiving plate 6 is fixed with multiple evenly distributed collection boxes 51, one side of the bottom of the multiple collection boxes 51 is connected to the guide pipe 52, one end of the multiple guide pipes 52 is commonly connected to the water inlet pipe, the water inlet pipe is connected to the water tank 55, and the top of the water tank 55 is connected to the floating plate 1. A reinforcement plate 56 is connected;

[0049] Rainwater can be collected during rainy weather by using multiple collection boxes 51. When rainwater enters the collection box 51, it is guided to the water inlet pipe by the guide pipe 52, and then transported to the water tank 55 by the water inlet pipe, and then transported to the water supply pipe 53 by the water supply pump 57. The rainwater is transported to the guide pipe 54 again by the water supply pipe 53, and then the photovoltaic panel 2 is sprayed by multiple water spray pipes 59, so that the photovoltaic panel 2 can be cleaned. By setting the reinforcement seat 58 and the support rod, the water supply pipe 53 is more stable during operation and will not shake easily. By cleaning the photovoltaic panel 2, surface dirt and salt deposition can be removed to maintain its high-efficiency operation. By continuously ensuring the cleanliness of the photovoltaic panel 2, the power generation efficiency is improved, the power output is made more stable and reliable, the need for manual intervention is reduced, the convenience of operation and the reliability of the system are improved, and at the same time, cleaning can prevent the long-term accumulation of salt and dirt, reduce the erosion of the photovoltaic panel 2 material, and thus extend its service life.

[0050] A method for installing an offshore photovoltaic device comprises the following steps:

[0051] S1, install the water tank 55 on the bottom of the floating plate 1 through multiple reinforcement plates 56, fix multiple collection boxes 51 on the top of the receiving plate 6 respectively, and then place the floating plate 1 on the sea, and improve its buoyancy through multiple evenly distributed buoyancy boxes 8 to make it above the sea surface;

[0052] S2. The receiving plate 6 is installed by a plurality of evenly distributed connecting blocks 9. After the receiving plate 6 is installed, the photovoltaic panel 2 can be effectively supported. Then, the collecting box 51 is connected to the water tank 55 by using the guide pipe 52 and the water inlet pipe;

[0053] S3, by setting a plurality of inclined plates 3, after the floating plate 1 is installed, the inclined plates 3 can float on the top of the sea surface, thereby expanding the attachment area of ​​marine organisms;

[0054] S4, driving the telescopic rod 44 to move up and down through the electric push rod 43, and the up and down movement of the telescopic rod 44 drives the photovoltaic panel 2 to move synchronously, so as to adjust the height of the photovoltaic panel 2;

[0055] S5. By setting a plurality of collecting boxes 51, part of the rainwater can be collected in rainy weather, and the collected rainwater can enter the water tank 55 through the cooperation between the guide pipe 52 and the water inlet pipe;

[0056] S6, adjusting the photovoltaic panel 2 to the bottom again by the lifting mechanism 4, so as to facilitate cleaning it with rainwater;

[0057] S7. According to S6: the rainwater collected in the water tank 55 is transported to the water supply pipe 53 through the water supply pump 57, and is sprayed out through a plurality of evenly distributed water spray pipes 59, so that the rainwater falls on the top of the photovoltaic panel 2, thereby achieving the effect of spraying and cleaning the photovoltaic panel 2.

[0058] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations may be made to the embodiments without departing from the principles and spirit thereof, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An offshore photovoltaic device, characterized in that: include: A floating plate (1), wherein a plurality of evenly distributed floating boxes (8) are installed around the floating plate (1), a receiving plate (6) is fixed on the top of the floating plate (1), a photovoltaic panel (2) is arranged on the top of the receiving plate (6), and a plurality of evenly distributed connecting blocks (9) are fixed between the floating plate (1) and the photovoltaic panel (2); An expansion mechanism is provided, the expansion mechanism being located on the outer wall of the floating plate (1) and being used to expand the attachment area of ​​marine organisms, the expansion mechanism comprising a plurality of fixing grooves provided on the outer wall of the floating plate (1), a rotating shaft (12) being installed inside each of the plurality of fixing grooves, a slanted plate (3) being fixed on one side of the rotating shaft (12), a plurality of evenly distributed attachment holes being provided inside the slanted plate (3), a contact plate (10) corresponding to the slanted plate (3) being fixed on one side of the floating plate (1), and a contact strip (11) being fixed on the bottom of the floating plate (1), an inclined surface being fixed on one side of the contact strip (11), and the inclined surface being matched with the slanted plate (3).

2. The offshore photovoltaic device according to claim 1, characterized in that: A lifting mechanism (4) for adjusting the lifting of the photovoltaic panel (2) is arranged between the photovoltaic panel (2) and the receiving plate (6); the lifting mechanism (4) comprises a telescopic rod (44) fixed at the bottom of the photovoltaic panel (2) and a lifting seat (41) fixed at the top of the receiving plate (6); an electric push rod (43) is fixed at the bottom of the lifting seat (41); and the telescopic end of the electric push rod (43) is connected to the telescopic rod (44).

3. The offshore photovoltaic device according to claim 2, characterized in that: A plurality of evenly distributed positioning blocks (45) are fixed to the outer wall of the telescopic rod (44), and a plurality of positioning grooves for the positioning blocks (45) to slide are provided inside the top of the lifting seat (41).

4. The offshore photovoltaic device according to claim 2, characterized in that: A plurality of evenly distributed positioning rods (42) are fixed to the bottom of the photovoltaic panel (2); the plurality of positioning rods (42) are plugged into the receiving plate (6), and sealing sleeves (7) are installed between the plurality of positioning rods (42) and the receiving plate (6).

5. The offshore photovoltaic device according to claim 1, characterized in that: A plurality of receiving seats (13) are fixed on the top of the receiving plate (6), and a conflict groove matching with the photovoltaic panel (2) is provided on the top of each of the plurality of receiving seats (13), and a plurality of evenly distributed water leakage holes is provided on one side of the conflict groove.

6. The offshore photovoltaic device according to claim 1, characterized in that: A cleaning mechanism (5) for cleaning the photovoltaic panel (2) is arranged on the top of the receiving plate (6), the cleaning mechanism (5) comprising a water tank (55) fixed to the bottom of the floating plate (1), a water supply pump (57) being installed inside the water tank (55), a water supply pipe (53) being connected to the water outlet end of the water supply pump (57), the water supply pipe (53) extending to the top of the receiving plate (6) and being provided with a spraying assembly for spraying the photovoltaic panel (2).

7. The offshore photovoltaic device according to claim 6, characterized in that: The spray assembly comprises a guide pipe (54) fixed on the top of the water supply pipe (53), the guide pipe (54) and the photovoltaic panel (2) are interlaced with each other, and one side of the guide pipe (54) is connected to a plurality of evenly distributed water spray pipes (59), and the water outlet ends of the plurality of water spray pipes (59) all correspond to the photovoltaic panel (2).

8. The offshore photovoltaic device according to claim 6, characterized in that: A reinforcement seat (58) is fixed to the outer wall of the water supply pipe (53), and two support rods are fixed to the bottom of the reinforcement seat (58), and the two support rods are connected to the top of the receiving plate (6).

9. The offshore photovoltaic device according to claim 6, characterized in that: A plurality of evenly distributed collecting boxes (51) are fixed on the top of the receiving plate (6); one side of the bottom of each of the plurality of collecting boxes (51) is connected to a flow guide pipe (52); one end of each of the plurality of flow guide pipes (52) is commonly connected to a water inlet pipe; the water inlet pipe is connected to a water tank (55); and a reinforcing plate (56) is connected between the top of the water tank (55) and the floating plate (1).

10. A method for installing an offshore photovoltaic device, used for installing the offshore photovoltaic device according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1, installing a water tank (55) at the bottom of a floating plate (1) through a plurality of reinforcing plates (56), fixing a plurality of collecting boxes (51) on the top of a receiving plate (6), and then placing the floating plate (1) on the sea, and increasing its buoyancy through a plurality of evenly distributed floating boxes (8) so that it is above the sea surface; S2. The receiving plate (6) is installed by means of a plurality of evenly distributed connecting blocks (9). After the receiving plate (6) is installed, the photovoltaic panel (2) can be effectively supported. Then, the collecting box (51) is connected to the water tank (55) by means of the guide pipe (52) and the water inlet pipe; S3. By disposing a plurality of inclined plates (3), after the floating plate (1) is installed, the inclined plates (3) can float on the top of the sea surface, thereby expanding the attachment area of ​​marine organisms; S4, driving the telescopic rod (44) to move up and down through the electric push rod (43), and the up and down movement of the telescopic rod (44) drives the photovoltaic panel (2) to move synchronously, thereby adjusting the height of the photovoltaic panel (2); S5. By providing a plurality of collection boxes (51), part of the rainwater can be collected in rainy weather, and the collected rainwater can enter the water tank (55) through the cooperation between the guide pipe (52) and the water inlet pipe; S6. The photovoltaic panel (2) is adjusted to the bottom again by the lifting mechanism (4), so as to be conveniently cleaned by rainwater; S7. The rainwater collected in the water tank (55) is transported to the water supply pipe (53) through the water supply pump (57), and sprayed out through a plurality of evenly distributed water spray pipes (59), so that the rainwater falls onto the top of the photovoltaic panel (2), thereby achieving the purpose of spraying and cleaning the photovoltaic panel (2).

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