Waterborne photovoltaic system and method of arranging the same

Abstract

The application provides a water photovoltaic system and an arrangement method thereof, which comprises a ring-shaped wave-preventing slope, a plurality of integrated fan-shaped floating plates are arranged in an array along the axis of the ring-shaped wave-preventing slope, the same connecting disc is fixedly connected to the ends of the plurality of integrated fan-shaped floating plates away from the ring-shaped wave-preventing slope, the fixed seat and the piston float are abutted through extrusion springs, the piston float is provided with a one-way air inlet valve for pumping water into the buffer groove from the outside, and the blocking net is retracted in the blocking net groove arranged in the upper portion of the ring-shaped wave-preventing slope. The ring-shaped wave-preventing slope is arranged around the floating photovoltaic device, which can effectively weaken the large fluctuation of the photovoltaic floating plate caused by the fluctuation of the water surface in each direction, and can also absorb the large fluctuation of the internal water surface through the lifting of the piston float, convert the energy generated by the water surface into the kinetic energy of the lifting of the blocking net, further prevent the photovoltaic assembly in the internal from being washed away under extremely complex conditions, and effectively ensure the safety of the water floating photovoltaic assembly.

Description

Technical Field

[0001] This invention relates to the field of floating photovoltaic devices, specifically to floating photovoltaic systems and their arraying methods. Background Technology

[0002] A prior art patent, CN109361339B, discloses a floating photovoltaic system and its deployment method. This photovoltaic system includes at least one photovoltaic array, comprising photovoltaic modules, photovoltaic supports for supporting the photovoltaic modules, and pontoons for mounting the photovoltaic supports on the water surface. The pontoons are correspondingly positioned below the photovoltaic modules. The photovoltaic system also includes anchors for fixing the photovoltaic array in the water. The anchors are positioned diagonally below the water surface of the photovoltaic array and are connected by anchor chains to a photovoltaic support located at the center of the photovoltaic array. This photovoltaic array not only firmly fixes the floating photovoltaic array on the surface of a designated water area, effectively resisting attacks from severe weather conditions such as strong storms and heavy rains, but also features low manufacturing costs, convenient construction, and a reasonable deployment.

[0003] However, the aforementioned floating photovoltaic system and its deployment method still have some obvious defects in use: 1. The floating photovoltaic device is pulled by anchor chains and nylon ropes to further position the floating photovoltaic device and prevent it from drifting with the current in harsh environments, which could damage the photovoltaic device and affect the flood discharge of the main stream. However, according to the latest river and lake water area management requirements issued by the Ministry of Water Resources, photovoltaic power stations, wind power generation and other projects are not allowed to be built in rivers, lakes and reservoirs. The construction of photovoltaic and wind power projects around lakes and reservoir inlets must be scientifically demonstrated. Strict controls are in place, prohibiting the deployment of floating photovoltaic projects in areas with flood control, water supply, and water ecology and environmental protection needs. These projects must not obstruct flood flow, endanger the safety of water conservancy projects such as reservoirs, dams, and dikes, or affect river stability and navigation safety. Therefore, the development of floating photovoltaic projects is somewhat constrained. While the aforementioned devices provide positioning for the photovoltaic structure, they still cannot guarantee its resilience in harsh environments, thus posing certain safety hazards. Furthermore, the protective functions of these devices are relatively limited in harsh water conditions, failing to effectively guarantee the safety of floating photovoltaic power stations. Summary of the Invention

[0004] The purpose of this invention is to provide a floating photovoltaic system and its arraying method to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A floating photovoltaic system includes an annular wave-breaking slope. Several integrated fan-shaped floating plates are arranged in a circular array along the axis of the annular wave-breaking slope. The ends of the integrated fan-shaped floating plates away from the annular wave-breaking slope are fixedly connected to the same connecting plate. The integrated fan-shaped floating plates rotate intermittently around the axis of the connecting plate.

[0007] Several integrated fan-shaped floats are provided with several vertically connected buffer grooves. Each buffer groove contains a piston float that is raised and lowered. A lifting support rod is fixedly installed at the upper end of each piston float, and the end of the lifting support rod away from the piston float is fixedly connected to a photovoltaic solar panel. A fixing seat is also fixedly installed in the buffer groove above the piston float. The fixing seat has a sliding groove for the lifting support rod to pass through. The fixing seat and the piston float are abutted by a compression spring. The piston float is equipped with a one-way air inlet valve that allows water to be pumped into the buffer groove from the outside. Each of the buffer grooves is connected to the integrated fan-shaped float... The confluence channel inside the shaped float is connected to the water inlet. The end of the confluence channel away from the connecting plate is connected to the water inlet on the inner side of the annular wave-breaking slope through the water outlet. The water inlet is connected to the lifting piston cylinder through the pipeline inside the annular wave-breaking slope. The lifting piston cylinder is equipped with a lifting and lowering intercepting net piston. An intercepting rod is fixedly installed on the upper end of the intercepting net piston. Several intercepting rods are connected to the barrier net. The barrier net is stored in the barrier net groove opened at the upper part of the annular wave-breaking slope. The lifting piston cylinder is equipped with a traction spring. The lifting piston cylinder is also provided with a pressure relief groove on the side of the traction spring that is connected to the outside of the annular wave-breaking slope.

[0008] Preferably, each of the integrated fan-shaped floating plates is fixedly installed with a sliding strip near one end of the annular wave-breaking slope, and the sliding strip is in movable cooperation with the sliding track provided on the inner side of the annular wave-breaking slope.

[0009] Preferably, the annular wave-breaking slope is provided with a plurality of rotary drive motors arranged in an annular array, and each of the rotary drive motors has a drive gear fixedly connected to its drive shaft. Each of the drive gears meshes with a toothed groove opened on the outer edge of the integrated fan-shaped floating plate.

[0010] Preferably, the outer side of the annular wave-breaking slope is provided with a plurality of lifting threaded grooves in an annular array, and a lifting threaded rod is installed in the plurality of lifting threaded grooves with internal thread engagement. The plurality of lifting threaded rods are movably installed on the drive shaft of the lifting motor, and the lifting motor is fixedly installed on a positioning pile below the water body.

[0011] An array deployment method includes a ring-shaped photovoltaic array for resisting wind and waves on the water surface, the array deployment method employing the above-mentioned floating photovoltaic system.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. The present invention sets up an annular wave-breaking slope around the floating photovoltaic device. The setting of the annular wave-breaking slope can effectively reduce the large fluctuations of the photovoltaic floating plate caused by the undulation of the water surface in all directions. Since the main factor that causes damage to the photovoltaic floating plate in harsh environments comes from the irregular floating of the water surface, while the water below the surface is usually relatively gentle, the setting of the annular wave-breaking slope can effectively disperse the undulations of the water surface from all sides, hinder the continuous fluctuation of the water flow, and thus reduce the damage to the internal photovoltaic modules in harsh environments.

[0014] 2. This invention disperses large fluctuations in the water surface through the annular wave-breaking slope, and can also absorb large fluctuations in the internal water surface through the raising and lowering of the piston float, converting the energy generated by the water surface into the kinetic energy of the barrier net rising. In this process, the water surface fluctuations are alleviated, and the rising of the barrier net further prevents the internal photovoltaic modules from being washed away under extremely complex conditions, effectively ensuring the safety of the floating photovoltaic modules.

[0015] This invention features a ring-shaped wave-damping slope around the floating photovoltaic device, which effectively reduces the large fluctuations of the photovoltaic floating plate caused by the undulations of the water surface in all directions. It can also absorb the large fluctuations of the internal water surface through the raising and lowering of the piston float, converting the energy generated by the water surface into the kinetic energy of the barrier net rising, further preventing the internal photovoltaic modules from being washed away under extremely complex conditions, and effectively ensuring the safety of the floating photovoltaic modules. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of the overall structure of the present invention;

[0017] Figure 2 This is a three-dimensional schematic diagram of the integrated fan-shaped floating plate connection structure of the present invention;

[0018] Figure 3 This is a cross-sectional schematic diagram of the buffer groove connection structure of the present invention;

[0019] Figure 4 This is a top view of the overall structure of the present invention.

[0020] In the diagram: 1. Circular wave-breaking slope; 2. Integrated fan-shaped floating plate; 3. Connecting plate; 4. Buffer groove; 5. Piston float; 6. Lifting support rod; 7. Photovoltaic solar panel; 8. Fixed seat; 9. Slide groove; 10. Compression spring; 11. One-way air inlet valve; 12. Combustion groove; 13. Water outlet; 14. Water inlet; 15. Lifting piston cylinder; 16. Interception net piston; 17. Interception rod; 18. Barrier net; 19. Barrier net groove; 20. Traction spring; 21. Pressure relief groove; 22. Slide bar; 23. Slide track; 24. Drive motor; 25. Drive gear; 26. Lifting threaded groove; 27. Lifting threaded rod. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] Please see Figure 1-4 The present invention provides a technical solution:

[0023] Example 1:

[0024] A floating photovoltaic system includes an annular wave-breaking slope 1. Several integrated fan-shaped floating plates 2 are arranged in annular array along the axis of the annular wave-breaking slope 1. The ends of the integrated fan-shaped floating plates 2 away from the annular wave-breaking slope 1 are fixedly connected to the same connecting plate 3. The integrated fan-shaped floating plates 2 rotate intermittently around the axis of the connecting plate 3.

[0025] Several integrated fan-shaped floats 2 are provided with several vertically connected buffer grooves 4. Each buffer groove 4 contains a piston float 5 that is raised and lowered. A lifting support rod 6 is fixedly installed on the upper end of the piston float 5. The end of the lifting support rod 6 away from the piston float 5 is fixedly connected to a photovoltaic solar panel 7. A fixing seat 8 is also fixedly installed in the buffer groove 4 above the piston float 5. The fixing seat 8 has a sliding groove 9 for the lifting support rod 6 to pass through. The fixing seat 8 and the piston float 5 are supported by a compression spring 10. The piston float 5 is provided with a one-way air inlet valve 11 that allows water to be pumped into the buffer groove 4 from the outside. Each buffer groove 4 is connected to a confluence channel opened in the integrated fan-shaped float 2. 12 is connected. The end of the manifold 12 away from the connecting plate 3 is connected to the water inlet 14 opened on the inner side of the annular wave-breaking slope 1 through the water outlet 13. The water inlet 14 is connected to the lifting piston cylinder 15 through the pipeline opened in the annular wave-breaking slope 1. The lifting piston cylinder 15 is equipped with a lifting and lowering intercepting net piston 16. An intercepting rod 17 is fixedly installed on the upper end of the intercepting net piston 16. Several intercepting rods 17 are connected to the barrier net 18. The barrier net 18 is stored in the barrier net groove 19 opened on the upper part of the annular wave-breaking slope 1. The lifting piston cylinder 15 is equipped with a traction spring 20. The lifting piston cylinder 15 is also provided with a pressure relief groove 21 on the side of the traction spring 20 that is connected to the outside of the annular wave-breaking slope 1.

[0026] In this embodiment, the installation mechanism for the photovoltaic solar panel 7 is an integrated fan-shaped floating plate 2. Compared to the combined floating boxes in the prior art, the individual photovoltaic solar panels 7 in this integrated fan-shaped floating plate 2 do not affect each other. During the undulation of the water surface, the floating boxes in the prior art cause the surrounding floating boxes connected to them to undulate as well, which can easily lead to mutual expansion between the photovoltaic solar panels and damage to the photovoltaic modules. However, the photovoltaic solar panel 7 of this invention does not cause the surrounding photovoltaic modules to undulate as well during the undulation process, thereby reducing the risk of collision. Furthermore, the annular wave-breaking slope 1 is external to... The annular wave-breaking slope 1 employs a smooth, curved surface structure. When the water surface is undulating, this smooth, sloping structure effectively blocks the straight-line transmission of water waves and disperses them to the outside, ensuring the safety of the internal photovoltaic modules. Simultaneously, while the annular wave-breaking slope 1 can change the transmission direction of most water surface waves, some still enter the interior of the annular wave-breaking slope 1 through its bottom. If this portion of the water surface is still significantly undulating, the undulating water surface causes the piston float 5 to move up and down, thereby transferring water surface energy through the piston float 5. This process further reduces the impact of water surface undulations. If the water surface continues to fluctuate during the lifting and lowering process, the piston float 5 pumps water into the buffer tank 4 through the one-way air inlet valve 11. The water entering the buffer tank 4 is then pumped into the lifting piston cylinder 15 through the confluence channel 12 during the continuous lifting and lowering of the piston float 5. Since the lifting piston cylinders 15 are interconnected, the pressure in each lifting piston cylinder 15 is equal when water is continuously pumped into them. If the pumped water flow rate is small, the water pumped into the lifting piston cylinder 15 is promptly pumped out through the pressure relief channel 21 under the action of the traction spring 20. During the transfer of water, the energy of water surface fluctuations is absorbed. When the fluctuations are continuous and intense, the amount of water pumped into the lifting piston cylinder 15 is greater than the amount of water discharged from the pressure relief tank 21. At this time, the high-pressure water flow overcomes the traction spring 20 and drives the intercepting rod 17 to rise until the barrier net 18 is fully opened. This process further absorbs the energy generated by the water surface fluctuations, thereby reducing the fluctuations of the water inside the annular wave-breaking slope 1. At the same time, when the lifting piston cylinder 15 extends to its maximum stroke, the opened barrier net 18 can further prevent the photovoltaic modules from being damaged and drifting with the waves, ensuring the safety of the photovoltaic modules under complex and harsh conditions.

[0027] Example 2:

[0028] In this embodiment, several integrated fan-shaped floating plates 2 are fixedly installed with sliding strips 22 near one end of the annular wave-breaking slope 1. The sliding strips 22 are movably engaged with the sliding tracks 23 provided on the inner side of the annular wave-breaking slope 1. Through the cooperation of the sliding strips 22 and the sliding tracks 23, the integrated fan-shaped floating plates 2 can be confined inside the annular wave-breaking slope 1 without falling off.

[0029] Example 3:

[0030] In this embodiment, a plurality of rotary drive motors 24 are arranged in a ring array inside the annular wave-breaking slope 1. Each of the rotary drive motors 24 has a drive gear 25 fixedly connected to its drive shaft. Each drive gear 25 meshes with a toothed groove on the outer edge of the integrated fan-shaped floating plate 2. The rotation of the drive gear 25 drives the overall rotation of the integrated fan-shaped floating plate 2, thereby adjusting the angle of the photovoltaic solar panel 7. In conjunction with the optical tracking device, the device can rotate with the position of the sun, greatly improving the utilization efficiency of the light source. This optical tracking technology is existing technology and will not be described in detail here.

[0031] Example 4:

[0032] In this embodiment, the outer side of the annular wave-breaking slope 1 is also provided with a plurality of lifting threaded grooves 26 arranged in a ring array. The lifting threaded rods 27 are installed in the threaded engagement of the plurality of lifting threaded grooves 26. The plurality of lifting threaded rods 27 are movably installed on the drive shaft of the lifting motor. The lifting motor is fixedly installed on the positioning pile below the water body. The rotation of the lifting motor drives the lifting threaded rods 27 to rotate, thereby causing the annular wave-breaking slope 1 and the integrated fan-shaped floating plate 2 to rise and fall together. Thus, the height can be adjusted in a timely manner according to the water level, ensuring that the device is always in a floating position. The positioning pile is driven into the bottom of the river channel through the pile foundation, and the entire floating photovoltaic system is fixed through the positioning pile.

[0033] An array deployment method includes a ring-shaped photovoltaic array for resisting wind and waves on the water surface, the array deployment method employing the above-mentioned floating photovoltaic system.

[0034] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A floating photovoltaic system, comprising a ring-shaped wave-breaking slope (1), characterized in that: The annular wave-breaking slope (1) is provided with a number of integrated fan-shaped floating plates (2) arranged in an annular array along its axis. The ends of the integrated fan-shaped floating plates (2) away from the annular wave-breaking slope (1) are fixedly connected to the same connecting plate (3). The integrated fan-shaped floating plates (2) rotate intermittently around the axis of the connecting plate (3). Several integrated fan-shaped floats (2) are provided with several vertically penetrating buffer grooves (4). Each of the buffer grooves (4) is equipped with a piston float (5) in a lifting manner. A lifting support rod (6) is fixedly installed at the upper end of the piston float (5). The end of the lifting support rod (6) away from the piston float (5) is fixedly connected to a photovoltaic solar panel (7). A fixed seat (8) is also fixedly installed in the buffer groove (4) above the piston float (5). A sliding groove (9) is provided on the fixed seat (8) for the lifting support rod (6) to pass through. The fixed seat (8) and the piston float (5) are abutted by a compression spring (10). A one-way air inlet valve (11) is provided on the piston float (5) for water to be pumped into the buffer groove (4) from the outside. Each of the buffer grooves (4) is connected to a confluence channel opened in the integrated fan-shaped float (2). (12) Connected, the end of the confluence channel (12) away from the connecting plate (3) is connected to the water inlet (14) opened on the inner side of the annular wave-breaking slope (1) through the water outlet (13). The water inlet (14) is connected to the lifting piston cylinder (15) through the pipeline opened in the annular wave-breaking slope (1). The lifting piston cylinder (15) is equipped with a lifting and lowering intercepting net piston (16). The upper end of the intercepting net piston (16) is fixedly installed with an intercepting rod (17). Several intercepting rods (17) are connected to the barrier net (18). The barrier net (18) is stored in the barrier net groove (19) opened on the upper part of the annular wave-breaking slope (1). The lifting piston cylinder (15) is equipped with a traction spring (20). The lifting piston cylinder (15) is also provided with a pressure relief groove (21) connected to the outside of the annular wave-breaking slope (1) on the side of the traction spring (20).

2. The floating photovoltaic system according to claim 1, characterized in that: Each of the integrated fan-shaped floating plates (2) is fixedly equipped with a sliding strip (22) near one end of the annular wave-breaking slope (1), and the sliding strip (22) is in movable cooperation with the sliding track (23) provided on the inner side of the annular wave-breaking slope (1).

3. A floating photovoltaic system according to claim 1, characterized in that: The annular wave-breaking slope (1) is provided with a number of rotary drive motors (24) arranged in an annular array. Each of the rotary drive motors (24) has a drive gear (25) fixedly connected to its drive shaft. Each of the drive gears (25) meshes with the tooth grooves opened on the outer edge of the integrated fan-shaped floating plate (2).

4. A floating photovoltaic system according to claim 1, characterized in that: The outer side of the annular wave-breaking slope (1) is also provided with a number of lifting threaded grooves (26) in an annular array. The lifting threaded grooves (26) are threadedly fitted with lifting threaded rods (27). The lifting threaded rods (27) are movably mounted on the drive shaft of the lifting motor. The lifting motor is fixedly mounted on a positioning pile below the water body.

5. A method for arranging a ring-shaped photovoltaic array capable of withstanding wind and waves on a water surface, characterized in that: The ring-shaped photovoltaic array arranged by this method adopts the floating photovoltaic system described in any one of claims 1-4.

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