Offshore floating type multi-circle annular photovoltaic support system

Abstract

The invention provides an offshore floating type multi-circle circular-ring-shaped photovoltaic support system which comprises a support assembly, the support assembly comprises a plurality of circular ring bodies which are located in the same plane and are concentrically arranged, and a plurality of connecting branch pipes are arranged between every two adjacent circular ring bodies; the connecting branch pipes are evenly distributed in the circumferential direction and distributed in a radial shape with the circle center of the support assembly as the center, the two adjacent circular ring bodies are fixedly connected through the connecting branch pipes, and a net-shaped floating body capable of floating on the water surface is formed. Each circular ring body comprises a plurality of arc-shaped pipes which are connected end to end, every two adjacent arc-shaped pipes are fixedly connected through a multi-way connector, and each connecting branch pipe is arranged between the multi-way connectors of every two adjacent circular ring bodies; and the photovoltaic module is arranged on the upper surface of the bracket assembly. The offshore floating type multi-circle annular photovoltaic support system is convenient to assemble, good in wind and wave resistance, convenient to transport, high in modularization degree and good in application prospect.

Description

TECHNICAL FIELD

[0001] The present application relates to a kind of offshore photovoltaic supports, in particular to a kind of offshore floating multi-ring circular photovoltaic support system. BACKGROUND

[0002] At present, the traditional circular ring floating support widely used in offshore photovoltaic power station, its main structure is integral circular ring floating body, such as injection molding integrated circular ring, the inner side of circular ring is fixed by welding or bolt other auxiliary floating body / support, for carrying photovoltaic module.

[0003] Affected by the structure of floating body, it has the following problems:

[0004] 1, weak against wind and wave, the stress of integral circular ring structure is concentrated in outer ring, when encountering wind and wave, outer ring is easy to deform, crack due to local stress too large, even lead to the overturning of whole floating body.

[0005] 2, inconvenient transportation and installation, integral circular ring is large in size and heavy in weight, transportation needs special equipment, and on-site installation relies on large hoisting machinery, difficult to adapt to the construction demand of complex water area.

[0006] 3, low degree of modularization, floating body size cannot be flexibly adjusted according to the number of photovoltaic modules, it is difficult to realize standardized and mass production, which restricts the rapid deployment of power station. SUMMARY

[0007] The technical problem to be solved by the present application is to provide an offshore floating multi-ring circular photovoltaic support system which is convenient to assemble, has good wind and wave resistance, is convenient to transport and has high degree of modularization.

[0008] The present application provides an offshore floating multi-ring circular photovoltaic support system, which comprises:

[0009] A support assembly 2, the support assembly 2 comprises a plurality of circular bodies which are arranged concentrically, a plurality of connecting pipes 23 are arranged between adjacent two circular bodies, the connecting pipes 23 enable the adjacent two circular bodies to be fixedly connected and form a net-shaped floating body which can float on the water surface; the circular body comprises a plurality of arc-shaped pipes 21 which are connected end to end, adjacent two arc-shaped pipes 21 are fixedly connected through a multi-way joint, and the connecting pipe 23 is arranged between the multi-way joints of adjacent two circular bodies;

[0010] A photovoltaic module is arranged on the upper surface of the support assembly 2.

[0011] Further, a center floating body 1 which can float on the water surface and serves as a maintenance platform is arranged at the center of the support assembly 2, the center floating body 1 is spliced by a pipe body and a multi-way joint, and is fixedly connected with the multi-way joints on the circular body at the center through the connecting pipe 23.

[0012] Furthermore, the number of multi-port connectors on each of the annular bodies is the same and the installation phase angle is the same, and the connecting branch pipes 23 located at the same phase angle are located on the same straight line; the connecting branch pipes 23 located on the same straight line form spokes, the axis of the spokes is perpendicular to and intersects the axis of the support assembly 2, and there are multiple spokes that are evenly distributed around the axis of the support assembly 2.

[0013] Furthermore, at least one of the spokes is provided with a foot pedal and forms a maintenance channel 3, the maintenance channel 3 being connected to the central float 1 at the center of the support assembly 2.

[0014] Furthermore, the ends of the arc-shaped pipe 21 and the connecting branch pipe 23 are sealed and / or the multi-port joint is provided with a partition, so that the arc-shaped pipe 21 and the connecting branch pipe 23 each form an independent sealed cavity.

[0015] Furthermore, the outer diameters of the arc-shaped pipe 21, the connecting branch pipe 23, and the multi-port connector are the same, and their end faces are connected by heat fusion.

[0016] Furthermore, the multi-connector on the bracket assembly 2 includes a tee connector 22 and a four-way connector 24. The tee connector 22 is disposed on the innermost and outermost annular bodies, and the four-way connector 24 is disposed on the remaining annular bodies. The tee connector 22 is T-shaped and has three first connection ports 220. The tee connector 22 has a first partition 221 inside, which blocks the communication between any two of the first connection ports 220. The four-way connector 24 is cross-shaped and has four second connection ports 240. The four-way connector 24 has a second partition 241 inside, which blocks the communication between any two of the second connection ports 240.

[0017] Furthermore, the first partition portion 221 is Y-shaped, and the second partition portion 241 is X-shaped.

[0018] Furthermore, the tee connector and the four-way connector are integrally formed by injection molding.

[0019] Furthermore, the end cap of the tube of the central float 1 and / or the multi-port joint is provided with a partition to form an independent sealed cavity inside the tube.

[0020] Furthermore, the upper and lower surfaces of the annulus are flush with the upper and lower surfaces of the connecting branch pipe, respectively.

[0021] Furthermore, the pedal includes pedal units arranged sequentially along the length of the spokes. Each pedal unit includes a pedal body 31 and at least two supports 32 fixed to the bottom surface of the pedal body 31 by bolts. The bottom surface of the supports 32 is an arc-shaped surface 321 and can fit against the side wall of the connecting branch pipe 23.

[0022] Furthermore, the pedal body 31 is a hollow cuboid structure, and the pedal body 31 is provided with a plurality of vertical support plates 311. The pedal body 31 is provided with mounting holes 310 for bolts to pass through.

[0023] Furthermore, the photovoltaic module includes multiple support units 6 arranged in a ring array on the support assembly and photovoltaic panels 5 disposed on the support units 6; the support unit 6 includes two parallel support rods 61, and the support rods 61 are connected to at least three adjacent rings through tube clamps 63.

[0024] Furthermore, the pipe clamp 63 includes a fixing sleeve 631 and a clamp body. The fixing sleeve 631 is sleeved on the support rod 61 and fixed by bolts. The clamp body is rotatably installed at the lower end of the fixing sleeve 631, and its rotation axis is perpendicular to and intersects the axis of the support rod 61.

[0025] Furthermore, the lower end of the fixing sleeve 631 is provided with a convex shaft 6311, the axis of the convex shaft 6311 is perpendicular to and intersects the axis of the fixing sleeve 631; the clamp body includes an upper clamp 632 and a lower clamp 633 that can be connected by bolts, the top of the upper clamp 632 is provided with a cylindrical body 6321, and the cylindrical body is rotatably mounted on the convex shaft 6311.

[0026] Furthermore, the support unit is provided with multiple sets of mounting seats along its length. The mounting seats include a first mounting seat 65 and a second mounting seat 64. The height of the first mounting seat 65 is higher than the height of the second mounting seat 64, which enables the photovoltaic panel to be installed at an angle.

[0027] Furthermore, the distance between any two adjacent annular bodies is equal.

[0028] Furthermore, the first mounting base 65 and the second mounting base 64 are fixed to the bracket rod 61 by U-bolts 657. The bracket rod 64 includes a first mounting portion 651 for connection with the U-bolts 657. The first end of the first mounting portion 651 is bent upward to form a support portion 653. The end of the support portion 653 is bent in the opposite direction to form a second mounting portion 654 for mounting the photovoltaic panel. The second end of the first mounting portion 651 is bent upward to form a reinforcing portion 652. The height of the support portion 653 of the first mounting base 65 is higher than the height of the support portion 653 of the second mounting base 64.

[0029] This invention relates to a floating multi-ring photovoltaic support system for marine applications. It employs a multi-ring concentric structure and radial branch pipes to form an interwoven structure, effectively dispersing the impact of wind and waves, enhancing anti-overturning moment, and resulting in high structural strength. The independent sealed cavity design achieves buoyancy redundancy; damage to a single pipe only results in a localized loss of buoyancy, eliminating the risk of overall sinking and ensuring high safety. The modular design supports factory prefabrication and on-site hot-melt assembly, significantly shortening the construction period. This floating multi-ring photovoltaic support system for marine applications is easy to assemble, has good wind and wave resistance, is easy to transport, and possesses a high degree of modularity, making it a promising solution for various applications. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of the present invention;

[0031] Figure 2 This is a schematic diagram of the support assembly of the present invention;

[0032] Figure 3 This is an exploded structural diagram of the support assembly of the present invention;

[0033] Figure 4 This is a schematic diagram of the structure of the central floating body of the present invention;

[0034] Figure 5 This is a schematic diagram of the pedal unit of the present invention;

[0035] Figure 6 This is a cross-sectional view of the pedal unit of the present invention;

[0036] Figure 7 This is an exploded structural diagram of the pedal unit of the present invention;

[0037] Figure 8 This is a schematic diagram of the structure of the photovoltaic module of the present invention;

[0038] Figure 9 This is a schematic diagram of the photovoltaic module of the present invention from another angle;

[0039] Figure 10 This is a schematic diagram of the support unit of the present invention;

[0040] Figure 11 for Figure 10 Enlarged view of section A in the middle;

[0041] Figure 12 for Figure 10 Enlarged view of section B in the middle;

[0042] Figure 13 This is a schematic diagram of the structure of the two-way connector of the present invention;

[0043] Figure 14This is a cross-sectional view of the two-way connector of the present invention;

[0044] Figure 15 This is a schematic diagram of the structure of the tee connector of the present invention;

[0045] Figure 16 This is a cross-sectional view of the tee connector of the present invention;

[0046] Figure 17 This is a schematic diagram of the four-way connector of the present invention;

[0047] Figure 18 This is a cross-sectional view of the four-way connector of the present invention;

[0048] In the diagram: 1. Central float; 11. Straight pipe; 15. Right-angle two-way connector; 150. Third connection port; 151. Third partition; 2. Support assembly; 21. Arc-shaped pipe; 22. T-connector; 220. First connection port; 221. First partition; 23. Connecting branch pipe; 24. Four-way connector; 240. Second connection port; 241. Second partition; 3. Inspection passage; 31. Pedal body; 310. Installation. 311. Hole, vertical support plate, 32. Support, 321. Arc surface, 5. Photovoltaic panel, 6. Support unit, 61. Support rod, 63. Pipe clamp, 631. Fixing sleeve, 6311. Protruding shaft, 632. Upper clamp, 633. Lower clamp, 64. Second mounting seat, 65. First mounting seat, 651. First mounting part, 652. Reinforcing part, 653. Support part, 654. Second mounting part, 7. Cable. Detailed Implementation

[0049] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0050] See Figures 1-18 The present invention provides a floating multi-ring photovoltaic support system for marine applications, which includes a support assembly 2 and photovoltaic modules.

[0051] The support assembly 2 includes multiple concentric rings. Multiple connecting branches 23 are provided between adjacent rings. The connecting branches 23 are radially distributed around the center of the support assembly, with their length direction being the radius direction of the ring. The connecting branches 23 fix the adjacent rings together to form a net-like float that can float on the water surface. The ring includes multiple arc-shaped tubes 21, which are connected end to end to form a complete ring structure. Adjacent arc-shaped tubes 21 are fixedly connected by multi-port joints. The connecting branches 23 are straight tubes and are set between the multi-port joints of adjacent rings to make the net-like float form an integral structure.

[0052] In this embodiment, the support assembly 2, specifically the arc-shaped tube 21, the connecting branch tube 23, and the multi-port connector, is made of HDPE.

[0053] The photovoltaic modules are mounted on the upper surface of the support assembly 2.

[0054] Traditional offshore photovoltaic (PV) support structures are mostly linear or single-loop structures, with stress concentrated in a localized area, making them prone to deformation and overturning under the impact of wind and waves.

[0055] This application fundamentally optimizes the force path through a design of multiple concentric rings and a mesh connection.

[0056] First, the multi-ringed concentric rings form a layered buffer structure, evenly distributing the lateral thrust of waves and the upward force of wind throughout the entire support system. This disperses the impact force and avoids localized stress concentration. For example, when waves act on the support, the impact force is transmitted step by step from the outer, middle, and inner rings, eventually dissipating within the overall structure of the mesh float, significantly improving the anti-overturning moment compared to a single-ring structure.

[0057] Furthermore, the connecting branch pipes tightly fix adjacent circular bodies, forming an interwoven mesh-like floating body with a larger contact area with the water surface and a more uniform buoyancy distribution. At the same time, the mesh structure can reduce the slapping effect of waves on the support structure, reduce the vibration amplitude of the support structure, and make the power generation efficiency of the photovoltaic modules more stable.

[0058] Meanwhile, the modular splicing structure enables a construction mode of factory prefabrication and on-site quick assembly, and is convenient to transport; the modular design allows for flexible adjustment of the number and diameter of the rings according to the power station capacity, without the need to redesign molds or structures, and offers high expansion flexibility.

[0059] Traditional supports are mostly integral welded structures, requiring large equipment for transportation, hoisting machinery for installation, and complete dismantling for maintenance. The modular design of this application completely solves this problem.

[0060] The curved pipes, connecting branch pipes, and multi-way connectors are all standardized modules that can be pre-processed in the factory, such as cutting and sealing. On-site, they can be quickly assembled by heat fusion, which greatly reduces the construction cycle.

[0061] The pipes and fittings are made of high-density polyethylene (HDPE) as the core material. HDPE has the characteristics of corrosion resistance, UV resistance and impact resistance. It can withstand the salt spray corrosion of seawater, sun exposure and wave impact for a long time and has a long service life. At the same time, HDPE is lightweight, which makes it easy to transport and install, reducing the difficulty of construction.

[0062] Multiple cables 7 are provided on the outermost ring of the support assembly for anchoring.

[0063] In this embodiment, the number of annular bodies in the support assembly 2 is multiple, typically 8-15, and the number is adjusted according to different power generation design requirements. The distance between any two adjacent annular bodies is the same, meaning that the distance between any two annular bodies is equal. This can also be understood as the length of each connecting branch pipe on the support assembly being the same. This effectively ensures uniform stress distribution on the structure and avoids local stress concentration caused by differences in spacing. The design of the same spacing makes the force transmission more symmetrical and balanced, further enhancing the structural stability and maintaining reliable performance even in complex sea conditions, ensuring the long-term stable operation of the photovoltaic modules. At the same time, it facilitates the standardized production and assembly of modular units, improving overall construction efficiency.

[0064] To facilitate maintenance, in this application, a central float 1 is provided at the center of the support assembly 2. The central float 1 can float on the water surface and serve as a maintenance platform. In this embodiment, the central float 1 is assembled from multiple pipes and multi-port joints, and is fixedly connected to the multi-port joint on the central annular body through the connecting branch pipe 23, so that the central float 1 is connected to the support assembly 2 and forms an integral structure.

[0065] The central float 1, serving as a fixed landmass within the support system, provides a stable working space for maintenance personnel. Personnel can directly stand on the float to perform operations such as cleaning photovoltaic modules, inspecting lines, and replacing equipment without worrying about the risk of imbalance caused by the ship's swaying. In this application, the central float 1 is not independent but is tightly fixed to the central annular ring (the innermost ring) of the support assembly 2 via connecting branch pipe 23, forming a stable structure with a central anchor point and multiple rings of support. The connection between the central float 1 and the central annular ring provides a core anchor point for the support system, concentrating the force on the multiple rings at the center and preventing eccentric swaying of the support in wind and waves. When encountering lateral wave impacts, the central float 1 can transfer the impact force to the central annular ring via the connecting branch pipe, and then distribute it to the outer rings, reducing the overall deformation of the support and thus enhancing the overall structure's resistance to deformation. Simultaneously, the buoyancy of the central float 1 can supplement the buoyancy gap in the central area of ​​the support, making the buoyancy distribution of the entire support more uniform. The central float 1 adopts a modular design with tubes and multi-port joints, which is completely consistent with the design logic of the support assembly 2, realizing the standardization of the entire process of design, production and installation.

[0066] In this embodiment, the number of multi-port connectors on each annulus is the same, and the multiple multi-port connectors are evenly distributed circumferentially and have the same installation phase angle, i.e., the same installation angle. Taking the number of multi-port connectors on one annulus as an example, the eight multi-port connectors are installed at 0°, 45°, 90°, 135°, 180°, 225°, 270°, and 315° positions on the annulus, respectively, with an included angle of 45° between adjacent connectors. This ensures that the connecting branch pipes 23 located at the same phase angle are on the same straight line. The connecting branch pipes 23 located on the same straight line form spokes, and the axis of the spokes is perpendicular to and intersects the axis of the support assembly 2. There are multiple spokes, and they are evenly distributed circumferentially around the axis of the support assembly 2.

[0067] This design utilizes circumferentially evenly distributed spokes to form symmetrical radial support, fundamentally enhancing the structural rigidity of the support system. Multiple spokes are evenly distributed around the central axis (e.g., one every 45°), giving the support system a perfect rotational symmetry structure. Regardless of the direction from which waves approach, the force is evenly offset by the symmetrical spokes, avoiding any weak points. Connecting branches with the same phase angle form straight spokes, equivalent to adding eight radial stiffeners to the support system. These stiffeners tightly connect the inner, middle, and outer rings, making the entire support a rigid disk that effectively resists the torsional forces of ocean waves. The consistent phase angle design ensures uniform force distribution and efficient transmission, avoiding localized overload. Multiple spokes evenly distribute the total load of the support system, such as the weight of the photovoltaic modules and the impact force of wind and waves, onto each spoke. The spoke axes are perpendicular to and intersect the central axis of the support, resulting in the shortest and most direct force transmission path. When waves impact the outer ring, the force travels radially through the spokes to the center, avoiding energy loss and localized stress concentration caused by detours. Furthermore, the consistent phase angle enables the standardization and interchangeability of components, significantly reducing production and maintenance costs.

[0068] At least one spoke is provided with a pedal to form a maintenance channel 3. In this embodiment, there are two pedals located on the same straight line. The maintenance channel 3 is connected to the central float 1 at the center of the support assembly 2. Specifically, the pedal includes multiple pedal units arranged sequentially along the length of the spoke. Each pedal unit includes a pedal body 31 and at least two supports 32 fixed to the bottom surface of the pedal body 31 by bolts. The bottom surface of the supports 32 is an arc-shaped surface 321, which can fit against the side wall of the upper surface of the connecting branch pipe 23. The pedal body 31 is a hollow cuboid structure. Multiple vertical support plates 311 are provided inside the pedal body 31. Mounting holes 310 are provided on the pedal body 31 to allow bolts to pass through, so as to fix the pedal body and the supports by bolts. Multiple pedal units are laid continuously along the spoke to form a through maintenance channel, which facilitates the passage of maintenance personnel and the maintenance of equipment. The hollow structure of the pedal body and the design of the vertical support plates reduce the weight while improving the bending resistance, ensuring the structural stability under high load. The curved support fits snugly against the surface of the connecting branch pipe, effectively enhancing connection reliability and preventing slippage or loosening. The entire pedal system enables rapid installation and disassembly through standardized components, significantly improving the efficiency of offshore operations.

[0069] In this application, the ends of the arc-shaped pipe 21 and the connecting branch pipe 23 are sealed, or a partition is provided in the multi-way joint, or the ends of the arc-shaped pipe 21 and the connecting branch pipe 23 are sealed and a partition is provided in the multi-way joint, so that the arc-shaped pipe 21 and the connecting branch pipe 23 each form an independent sealed cavity.

[0070] Traditional floating body supports are mostly integral sealed structures, such as welded integrated rings. Once a part is damaged, the buoyancy of the entire floating body will be lost instantly, causing the support to capsize. However, this application creatively adopts an independent sealed cavity design, which achieves redundant backup of buoyancy through physical isolation.

[0071] The ends of the arc-shaped pipe and connecting branch pipe are sealed with sealing plugs to form independent cavities for each pipe. The partition within the multi-port joint completely isolates the cavities of different pipe sections, preventing seawater from seeping into other pipe sections after a single pipe is damaged. If one connecting branch pipe or arc-shaped pipe in the support system is damaged due to collision, only the sealed cavity of that pipe will be flooded, while other pipe sections remain sealed. The buoyancy loss is only a percentage of the single pipe's volume, and the remaining buoyancy can still support the stable floating of the support system, eliminating the risk of overall sinking and significantly improving system safety and survivability. Maintenance of traditional integral sealed supports requires complete dismantling, such as cutting welding points and hoisting ashore, which is costly and time-consuming. The independent sealing cavity design allows for precise positioning and rapid repair during maintenance. Damaged pipe sections can be disassembled individually, such as cutting heat-fusion joints and replacing them with new sections of the same specifications, without affecting other pipe bodies, enabling localized damage and replacement. Maintenance does not require towing the entire support system away from the work area, significantly reducing maintenance difficulty and cost. The independent sealing cavity allows for rapid location of the damage point through pressure testing, eliminating the need for underwater inspection of the entire support system, greatly improving maintenance efficiency.

[0072] Meanwhile, the independent sealed cavity not only ensures buoyancy but also enhances the overall strength of the support structure through its structural design. The air or inert gas inside the sealed cavity can form a pressure support, which can improve the bending resistance of the pipe section. When waves crash against the connecting branch pipe or curved pipe, the air pressure inside the sealed cavity can offset part of the external force and reduce the deformation of the pipe section. The partition not only isolates the chamber but also enhances the sealing performance of the joint and the pipe section, preventing seawater from seeping in through the joint gaps.

[0073] In this application, the outer diameters of the arc-shaped pipe 21, the connecting branch pipe 23, and the multi-port connector are the same, and their end faces are connected by heat fusion. After the end faces are tightly fitted together, they are connected by heat fusion to form an integrated sealing structure, ensuring connection strength and sealing reliability. The design of the same outer diameter ensures that each pipe section is subjected to uniform stress, reduces the risk of stress concentration, and further improves the overall deformation resistance of the support. This structure ensures buoyancy redundancy while enhancing stability under dynamic loads, making it particularly suitable for long-term operating environments in complex sea conditions.

[0074] Meanwhile, the outer diameters of the arc-shaped pipe 21, the connecting branch pipe 23, and the multi-way connector are the same, which makes the upper and lower surfaces of the annulus flush with the upper and lower surfaces of the connecting branch pipe, respectively. The flush surfaces reduce the hooking effect of waves on the support. Traditional protruding joints are easily dragged by waves. At the same time, the uniform outer diameter makes the water flow through the support less resistant, reduces the impact force of waves on the support, further improves the anti-overturning moment, and improves the overall resistance to wind and wave impact.

[0075] Specifically, the multi-connector on the bracket assembly 2 includes a tee connector 22 and a four-way connector 24. The tee connector 22 is located on the innermost and outermost annular rings, while the four-way connector 24 is located on the remaining annular rings. The tee connector 22 is T-shaped and has three first connection ports 220. The tee connector 22 has a first partition 221 inside, which includes three interconnected partitions arranged in a Y-shape to block the communication between any two of the first connection ports 220 on the tee connector, thus isolating the communication between the three first connection ports 220. The four-way connector 24 is cross-shaped and has four second connection ports 240. The four-way connector 24 has a second partition 241 inside, which includes four interconnected partitions arranged in an X-shape to block the communication between any two of the four second connection ports 240, ensuring the independent sealing of each connecting branch pipe and the arc pipe. The tee connector 22 and the four-way connector 24 are integrally molded by injection molding, that is, integrally molded with the internal partition.

[0076] The Y-shaped partitions of the tee and the X-shaped partitions of the four-way connector are injection molded as a single unit, eliminating the need for glue or screws in later assembly. This significantly reduces leakage rates under the high pressure of seawater. The integrated partitions prevent leakage through seams, meeting the zero-leakage sealing requirements for offshore photovoltaic systems. The Y-shaped partitions strictly block the connection between any two of the three joints in the tee, while the X-shaped partitions block the connection between any two of the four joints in the four-way connector. Each pipe segment forms an absolutely independent sealed cavity. Even if a pipe segment is damaged by impact, seawater only enters that segment, while the other segments remain sealed, completely avoiding the risk of overall submersion. Furthermore, the integrated molding of the joints and partitions eliminates weak points from welding or screw connections, reducing stress concentration and effectively preventing breakage and deformation. The three partitions of the Y-shaped partition form a stable triangular structure, while the X-shaped partition forms a cross-support structure, dispersing the impact of waves and enhancing the overall structural strength of the joint, ensuring the overall rigidity of the support structure.

[0077] Meanwhile, the ends of the tubes of the central float 1 are sealed, or a partition is provided in the multi-port joint, so that an independent sealed cavity is formed inside the tube; its effect is the same as that of the support assembly, and the independent sealing of each tube section is achieved by partitioning to prevent seawater from flowing through, so that even if there is local damage, it will not affect the overall buoyancy performance.

[0078] In this embodiment, the central float is rectangular, specifically a square in the shape of a grid. It is constructed by connecting multiple straight pipes 11, multiple four-way connectors, and right-angle two-way connectors 15. Each right-angle two-way connector 15 has two connection ports and is bent at 90 degrees, positioned at the four corners. The right-angle two-way connector 15 is L-shaped and has two third connection ports 150. A third partition 151, which is a baffle plate, is located in the middle of the right-angle two-way connector 15, blocking the connection between the two third connection ports 150, thus isolating the mutual communication between the two third connection ports 150. The third partition 151 and the right-angle two-way connector 15 are integrally molded by injection molding, ensuring complete isolation between the connection ports and preventing seal failure due to gluing or welding. A four-way connector is provided at the center of the side of the float, and a connecting branch pipe is provided on the four-way connector. The length of the connecting branch pipe is greater than the length of the connecting branch pipe on the support assembly. Its end is connected to the four-way connector on the inner ring to form an integrated structure.

[0079] In this application, the photovoltaic module includes multiple support units 6 arranged in a ring array on a support assembly and photovoltaic panels 5 mounted on the support units 6. Each support unit 6 includes two parallel support rods 61, which are connected to at least three adjacent annular bodies via tubular clamps 63, preferably connecting three. This support unit not only serves as a mounting and fixing carrier for the photovoltaic panels but also strengthens and stabilizes the annular bodies, ensuring their posture and structural stability under complex sea conditions. The two parallel support rods of the support unit are connected to the three adjacent annular bodies via clamps, forming multi-point support and improving the connection stiffness between the support unit and the annular bodies. The two parallel support rods evenly distribute the weight of the photovoltaic panels across the three annular bodies, reducing the force on individual annular bodies and preventing deformation caused by localized overload. Simultaneously, the parallel structure enhances the support unit's resistance to torsional deformation, making it less prone to twisting under the impact of large waves. The adjustable design of the tubular clamps accommodates the thermal expansion and contraction of the annular bodies, preventing loosening of the connection due to temperature changes. The anti-slip rubber pads on the clamps can also reduce frictional damage between the support rod and the ring, extending the structural life.

[0080] Meanwhile, its modular structure facilitates rapid assembly and disassembly, adapting to the layout requirements of offshore photovoltaic arrays of different sizes and offering high flexibility. If a support pole is damaged, it can be disassembled and replaced simply by loosening the corresponding clamp, without affecting other support units or the ring structure, enabling localized replacement of damaged parts and significantly reducing maintenance time and costs.

[0081] The pipe clamp 63 in this application includes a fixing sleeve 631 and a clamp body. The fixing sleeve 631 is sleeved on the support rod 61 and fixed with bolts. The clamp body is rotatably installed at the lower end of the fixing sleeve 631, and its rotation axis is perpendicular to and intersects the axis of the support rod 61. Specifically, the lower end of the fixing sleeve 631 is provided with a convex shaft 6311, and the axis of the convex shaft 6311 is perpendicular to and intersects the axis of the fixing sleeve 631. The clamp body includes an upper clamp 632 and a lower clamp 633 that can be connected by bolts. The upper clamp 632 and the lower clamp 633 are semi-circular. The top of the upper clamp 632 is provided with a cylindrical body 6321, which is rotatably installed on the convex shaft 631. 1. The present application significantly improves the fault tolerance and adaptability during installation by utilizing the rotational freedom and modular structure of the clamp body. The clamp body is rotatably connected to the convex shaft of the fixing sleeve via a cylindrical body. The rotation axis is perpendicular to the axis of the support rod, allowing for 360° free rotation around the support rod. When the ring body has slight elliptical deformation or installation position deviation, the clamp body can adjust its angle by rotation to ensure perfect fit with the ring body without the need to readjust the position of the support rod, thus improving the installation fault tolerance. The fixing sleeve is fastened to the support rod with bolts and can slide back and forth along the axis of the support rod to adjust its position, adapting to different specifications of photovoltaic modules or ring body spacing, further enhancing installation flexibility.

[0082] Multiple sets of mounting seats are provided along the length of the support unit. The mounting seats are used to fix photovoltaic panels. The mounting seats include a first mounting seat 65 and a second mounting seat 64. The height of the first mounting seat 65 is higher than the height of the second mounting seat 64, which can realize the tilted installation of photovoltaic panels. Specifically, the first mounting seat 65 and the second mounting seat 64 are fixed to the support rod 61 by U-bolts 657. The first mounting part 651 is used to connect with the U-bolts 657. The first end of the first mounting part 651 is bent upward to form a support part 653. The end of the support part 653 is bent in the opposite direction to form a second mounting part 654 for mounting photovoltaic panels. The second end of the first mounting part 651 is bent upward to form a reinforcing part 652. The height of the support part 653 of the first mounting seat 65 is higher than the height of the support part 653 of the second mounting seat 64. It is detachably installed on the support unit, which is convenient for flexible configuration according to actual installation needs.

[0083] This application uses HDPE pipes and connects them via end-face heat fusion. During heat fusion, the ends of the HDPE pipes melt at high temperatures, and the molecular chains interpenetrate and diffuse before cooling and solidifying, forming a seamless, integrated structure. The tensile strength of the connection can reach over 90% of the pipe body's strength, and the bending strength is consistent with the pipe material, far exceeding traditional mechanical connections such as flanges and clips. For example, under the impact of a category 12 typhoon, the maximum stress at the heat fusion connection is 12 MPa, while the yield strength of the HDPE pipe is 20 MPa, eliminating the risk of breakage. In the marine environment, wave impact causes repeated stress on the support structure. Bolts and clips of traditional mechanical connections are prone to loosening due to fatigue wear. However, the integrated structure of thermofusion connection is gapless and frictionless, with extremely high fatigue resistance, far exceeding that of mechanical connections. Its fatigue resistance is superior, and it can withstand dynamic load cycles. At the same time, the multi-ring concentric rings form a mesh floating body through connecting branch pipes. The thermofusion connection makes each node, such as the connection end of the tee or cross joint to the pipe body, a rigid support point, which evenly distributes the wind and wave loads to the entire mesh structure, achieving mesh-like stress distribution and avoiding local stress overload.

[0084] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A marine floating multi-ring torus photovoltaic racking system, characterized in that, The application relates to a support assembly. The support assembly comprises a plurality of annular bodies arranged in the same plane and concentrically, a plurality of connecting branches arranged between two adjacent annular bodies, the connecting branches being distributed in a radial manner and being arranged in the same line and around the center of the support assembly, and the connecting branches being used for fixing and connecting the two adjacent annular bodies and forming a net-shaped floating body floating on the water surface.

2. The offshore floating multi torus ring type photovoltaic support system as claimed in claim 1, wherein: The center of the support assembly is provided with a center floating body floating on the water surface and used as a maintenance platform, the center floating body is formed by connecting a plurality of pipe bodies and a plurality of multi-way joints, and the center floating body is fixedly connected with the multi-way joints on the center annular body through the connecting branches.

3. The offshore floating multi torus ring type photovoltaic support system as claimed in claim 1, wherein: The number and installation phase angles of the multi-way joints on each annular body are the same, and the connecting branches arranged in the same phase angle are arranged in the same line; the connecting branches arranged in the same line form a spoke, the axis of the spoke is perpendicular to the axis of the support assembly, and a plurality of spokes are arranged in the same line and around the axis of the support assembly.

4. The offshore floating multi torus ring type photovoltaic support system as claimed in claim 3, wherein: At least one spoke is provided with a stepping plate and forms a maintenance channel, and the maintenance channel is connected with the center floating body at the center of the support assembly.

5. The offshore floating multi torus ring type photovoltaic support system as claimed in claim 1, wherein: The end portions of the arc-shaped pipes and the connecting branches are sealed, and / or the multi-way joints are provided with partition portions, so that the arc-shaped pipes and the connecting branches form independent sealed cavities.

6. The offshore floating multi torus ring type photovoltaic support system as claimed in claim 1, wherein: The outer diameters and wall thicknesses of the arc-shaped pipes, the connecting branches and the multi-way joints are the same, and the end faces are connected through heat melting.

7. The offshore floating multi torus ring type photovoltaic support system as claimed in claim 1, wherein: The multi-way joints on the support assembly comprise three-way joints and four-way joints, the three-way joints are arranged on the annular bodies of the innermost circle and the outermost circle, the four-way joints are arranged on the remaining annular bodies, the three-way joints are T-shaped and have three first connecting ports, the three-way joints are provided with first partition portions, the first partition portions block the communication between the first connecting ports, the four-way joints are cross-shaped and have four second connecting ports, the four-way joints are provided with second partition portions, and the second partition portions block the communication between the second connecting ports.

8. The offshore floating multi torus ring type photovoltaic support system as claimed in claim 2, wherein: The end portions of the pipe bodies of the center floating body are sealed, and / or the multi-way joints are provided with partition portions, so that the pipe bodies form independent sealed cavities.

9. The offshore floating multi torus ring type photovoltaic support system as claimed in claim 1, wherein: The distance between two adjacent annular bodies is equal.

10. The offshore floating multi torus ring type photovoltaic support system as claimed in claim 1, wherein: The support assembly is provided with a photovoltaic assembly, the photovoltaic assembly comprises a plurality of support units arranged in a ring array on the support assembly and a plurality of photovoltaic boards arranged on the support units, and the support unit comprises two parallel support rods connected with at least three adjacent annular bodies through pipe body clamps.

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