Anchoring device for floating photovoltaics

Abstract

The application discloses an anchoring device for floating photovoltaics, which comprises a hollow pile with a plurality of through holes in the top, a counterweight module and a plurality of anchor ropes; the bottom of the hollow pile extends into the seabed and is fixedly connected with the seabed, and the top is located below the sea surface; the counterweight module is arranged around the outer wall of the hollow pile and is connected with the upper surface of the seabed; and the plurality of anchor ropes are arranged on the pile body of the hollow pile and are flexibly connected with the pile body. The anchoring device for floating photovoltaics can adapt to large deformation of wind, wave and tide, has remarkable anti-pulling effect, can prevent scouring, has good stability and effectively guarantees the safety of the floating photovoltaic system. Meanwhile, since the main components are all prefabricated parts, the installation difficulty is reduced, the problem of large offshore construction difficulty and low safety is solved, and since the hollow pile is clearly positioned, the construction progress is accelerated, and the anchoring device is suitable for large-scale offshore photovoltaic development.

Description

Technical Field

[0001] This invention discloses an anchoring device for floating photovoltaic systems, specifically an anchoring device suitable for large-scale development of floating photovoltaic systems, belonging to the field of clean energy power generation technology. Background Technology

[0002] With the global energy structure undergoing decarbonization, photovoltaic power generation, as a green, clean, and renewable energy source, has experienced strong growth in recent years. Oceans have vast water areas, far from residential areas, making the construction of photovoltaic projects in the ocean a way to improve the comprehensive utilization of marine space. Furthermore, the vastness of the ocean means that the arrangement of photovoltaic arrays is not affected by the shape of the water, allowing for the relatively orderly deployment of large-scale photovoltaic arrays. This will usher in a period of comprehensive development for the offshore photovoltaic industry.

[0003] However, due to the harsh installation environment, offshore photovoltaic systems require attention to a series of issues, including the system's economic efficiency, structural safety, and adaptability to extreme weather conditions. The main challenge in constructing large-scale offshore floating photovoltaic systems is securing the floating body.

[0004] Currently, the construction of offshore floating photovoltaic systems is still in the early feasibility study stage. To ensure the overall flexibility of the floating photovoltaic system, anchor chains are usually used to connect the floating bodies and fix them to the seabed. However, anchoring a large area with anchor chains is too difficult to construct, and if it is not properly secured, the large floating body will drift or collide due to the influence of wind, waves, currents, and water level fluctuations, resulting in poor stability. Summary of the Invention

[0005] The purpose of this application is to provide an anchoring device for floating photovoltaic systems, so as to solve the technical problems of high construction difficulty and poor stability in fixing floating bodies in large-area photovoltaic systems in the prior art.

[0006] The present invention provides an anchoring device for floating photovoltaic systems, comprising a hollow pile with multiple through holes at the top, a counterweight module, and an anchor cable;

[0007] The bottom of the hollow pile extends into the seabed and is fixedly connected to the seabed, while the top of the pile is below the sea surface.

[0008] The counterweight module is enclosed on the outer wall of the hollow pile and is in contact with the upper surface of the seabed;

[0009] One end of the anchor cable is set on the pile body of the hollow pile and flexibly connected to the pile body, while the other end is connected to the floating body of the floating photovoltaic system.

[0010] Preferably, it also includes a reinforcement module;

[0011] The reinforcement module is disposed within the seabed and surrounds the outer wall of the hollow pile.

[0012] Preferably, the upper surface of the reinforcing module is in contact with the lower surface of the counterweight module, and the diameter of the reinforcing module is larger than the diameter of the counterweight module.

[0013] Preferably, the reinforcement module includes a cage wall and a grouting unit;

[0014] The cage wall is set inside the seabed and surrounds the outer wall of the hollow pile;

[0015] The grouting unit extends through the counterweight module into the cage wall to grout the cage wall.

[0016] Preferably, it also includes a flexible connector;

[0017] The flexible connector is fixedly installed inside the pile body;

[0018] The flexible connector is at a preset distance from the top of the pile;

[0019] One end of the anchor cable is fixed to the flexible connector, and the other end extends through the through hole opened on the top of the pile, protruding from the hollow pile and connecting to the float of the floating photovoltaic system.

[0020] Preferably, the flexible connector includes a lug and a flexible pad.

[0021] A connection hole is provided on the lug;

[0022] The flexible pad is disposed on the wall of the connecting hole;

[0023] One end of the anchor cable is fixed to the connecting hole.

[0024] Preferably, it also includes multiple reinforcing ribs;

[0025] The multiple reinforcing bars are fixedly installed on the outer wall of the hollow pile and are located in the area where the counterweight module and / or the reinforcement module are located.

[0026] Preferably, each of the reinforcing bars is a steel bar with a preset bending angle;

[0027] The bending directions of the two axially adjacent reinforcing bars in the hollow pile are opposite.

[0028] Preferably, it also includes a pile cap and a base plate fixedly disposed inside the pile cap;

[0029] One end of the pile cap is connected to the top of the hollow pile through the base plate, and the other end extends out of the sea surface.

[0030] Preferably, it also includes a cable post;

[0031] The cable-stayed post is fixedly installed on the inner wall of the pile cap;

[0032] The pile cap has a cable-winding hole on its side wall;

[0033] The cable-winding hole corresponds to the position of the cable-winding post and is at a preset distance from the cable-winding post;

[0034] The anchor cable passes through the through hole and the base plate in sequence and is wound onto the cable post.

[0035] Preferably, the pile top is detachably connected to the pile body.

[0036] The anchoring device for floating photovoltaic systems of the present invention has the following advantages compared with the prior art:

[0037] The anchoring device for floating photovoltaic systems of this invention can adapt to large deformations caused by wind and waves, exhibits significant pull-out resistance, erosion prevention, and good stability, effectively ensuring the safety of the floating photovoltaic system. Furthermore, since the main components are all prefabricated, the installation difficulty is reduced, solving the problems of high difficulty and low safety in offshore construction. Moreover, the precise positioning of the hollow piles accelerates the construction progress, making it suitable for large-scale offshore photovoltaic development. Attached Figure Description

[0038] Figure 1 This is a schematic elevation view of an anchoring device for floating photovoltaic systems according to an embodiment of the present invention.

[0039] Figure 2 This is a plan view of the top of a hollow pile with a through hole in an embodiment of the present invention;

[0040] Figure 3 This is a plan view of the counterweight module in an embodiment of the present invention;

[0041] Figure 4 This is a schematic diagram of the rib structure in an embodiment of the present invention;

[0042] Figure 5 This is a schematic elevation view of the construction process of the anchoring device for floating photovoltaic systems in an embodiment of the present invention.

[0043] Figure 6 This is a schematic diagram of a base plate with a cable-passing hole in an embodiment of the present invention.

[0044] List of components and reference numerals:

[0045] 1 is a hollow pile; 101 is the pile top; 1011 is a through hole; 102 is the pile bottom; 2 is a counterweight module; 3 is an anchor cable; 4 is the seabed; 401 is a silt layer; 402 is a sand layer; 403 is a bearing layer; 5 is the sea surface; 6 is a reinforcement module; 601 is a cage wall; 602 is a grouting zone; 603 is a grouting pipe; 604 is a grouting equipment; 7 is a flexible connector; 8 is a reinforcing bar; 9 is a pile cap; 901 is the top of the pile cap; 902 is the bottom plate; 9021 is a cable-passing hole; 903 is a cable-winding hole; 10 is a cable-winding column; 11 is a buoy. Detailed Implementation

[0046] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of the invention. However, those skilled in the art will understand that the invention can be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods are omitted so as not to obscure the description of the invention with unnecessary detail.

[0047] This invention provides an anchoring device for floating photovoltaic systems, such as... Figures 1 to 6 As shown, including as Figure 2 The hollow pile 1 shown has multiple through holes 1011 on the top 101. Figure 3 The counterweight module 2 and anchor cable 3 are shown.

[0048] The bottom 102 of the hollow pile 1 extends into the seabed 4 and is fixedly connected to the seabed 4, while the top 101 of the pile is located below the sea surface 5.

[0049] The counterweight module 2 is enclosed on the outer wall of the hollow pile 1 and is connected to the upper surface of the seabed 4;

[0050] One end of the anchor cable 3 is set on the pile body of the hollow pile 1 and flexibly connected to the pile body, while the other end is connected to the floating body of the floating photovoltaic system.

[0051] The seabed 4 typically comprises, from top to bottom, a silt layer 401, a sand layer 402, and a bearing layer 403. In this embodiment of the invention, the bottom 102 of the hollow pile 1 needs to extend into the bearing layer 403 to reach the design elevation, thereby improving the pull-out resistance of the hollow pile 1.

[0052] Furthermore, in this embodiment of the invention, the top 101 of the hollow pile 1 needs to be higher than the seabed 4 by a certain height and located below the sea surface 5, so that seawater can enter the hollow pile 1 through the through hole 1011 opened on the top 101, and the inside and outside of the pile body are flat, which is conducive to the stability of the pile body. At the same time, it increases the overall weight of the pile body, which is conducive to improving the frictional resistance and enhancing the pull-out resistance of the hollow pile 1.

[0053] The hollow pile 1 in this embodiment of the invention can have a circular or square cross-section. The hollow pile 1 can be a precast concrete pile, a prestressed concrete pile, a steel pile, or other types of hollow pile. This invention does not impose requirements on the material or end face shape of the hollow pile 1, as long as the material, cross-sectional shape, and insertion depth into the seabed 4 meet the design bearing capacity, pull-out resistance, and bending resistance requirements of the pile.

[0054] In this embodiment of the invention, the counterweight module 2 can be a counterweight cage, which can be a prefabricated product. The cage body is a frame formed by steel bars, and the cage is filled with stones, waste concrete blocks, etc. The counterweight cage encloses the hollow pile 1, providing protection for a certain area of ​​the pile body.

[0055] For example, the counterweight cage is 0.5 to 3m high and its cross-sectional dimensions are 1 to 5 times the cross-sectional dimensions of the hollow pile 1. The cross-sectional dimensions of the cage can be round or square, etc.

[0056] In this embodiment of the invention, the counterweight cage increases the pull-out resistance of the hollow pile 1 on the one hand, and provides protection for the pile body of the hollow pile 1 on the other hand, thus ensuring the stability of the anchoring device in a complex marine environment.

[0057] In this embodiment of the invention, there may be one or more anchor cables.

[0058] The floating photovoltaic anchoring device of this invention can adapt to large deformations caused by wind and waves, exhibits significant pull-out resistance, erosion prevention, and good stability, effectively ensuring the safety of the floating photovoltaic structure. Furthermore, since the main components are all prefabricated, the installation difficulty is reduced, solving the problems of high difficulty and low safety in offshore construction. Moreover, the precise positioning of the hollow piles accelerates the construction progress, making it suitable for large-scale offshore photovoltaic development.

[0059] When photovoltaic systems are deployed on a large scale, the bearing capacity of the seabed 4 at certain locations of hollow piles 1 may not meet the design requirements. Therefore, this invention also includes a reinforcement module 6 to reinforce the seabed.

[0060] The reinforcement module 6 is installed inside the seabed 4 and surrounds the outer wall of the hollow pile 1.

[0061] The reinforcement module 6 of this invention can not only reinforce the seabed 4, but also further improve the pull-out resistance and bending resistance of the hollow pile 1.

[0062] To further enhance the effectiveness of the reinforcement module 6, in this embodiment of the invention, the upper surface of the reinforcement module 6 is connected to the lower surface of the counterweight module 2, and the diameter of the reinforcement module 6 is larger than the diameter of the counterweight module 2, so that the reinforcement module 6 and the counterweight module 2 form an integral structure, and the center of gravity of the overall structure is lower, making the structure more stable.

[0063] For example, the reinforcement module 6 in this embodiment of the invention includes a cage wall 601 and a grouting unit;

[0064] The cage wall 601 is set inside the seabed 4 and surrounds the outer wall of the hollow pile 1, forming a grouting zone 602 inside, which is used to control the grouting range.

[0065] The grouting unit extends through the counterweight module 2 into the cage wall 601 to grout the cage wall 601.

[0066] In one specific embodiment, a cage wall 601 and grouting pipes 603 can be pre-installed during the fabrication of the counterweight cage. The cage wall 601 is located on the outer side of the bottom of the counterweight cage, forming a closed loop. The height of the cage wall 601 is 0.5–5 m, determined according to the geological conditions of the seabed 4. The grouting pipes 603 are evenly arranged inside the counterweight cage. One section of the grouting pipe 603 is made of PVC, with a length sufficient to extend from the top of the counterweight cage installed on the seabed surface to the grouting device 604 located at the sea surface 5. The other section is made of steel pipe, with a length from the top of the counterweight cage to the bottom of the cage wall 601. This embodiment of the invention uses a section of steel pipe for the grouting pipe 603 to prevent deformation of the grouting pipe 603 extending deep into the seabed 4, which would affect grouting efficiency and grouting volume.

[0067] In this embodiment of the invention, the anchor cable 3 is disposed on the pile body of the hollow pile 1 and flexibly connected to the pile body. Specifically, a flexible connector 7 is used to fix the anchor cable 3 to the pile body of the hollow pile 1. The flexible connector 7 can be disposed on the outer wall or inner wall of the pile body of the hollow pile 1. When multiple anchor cables are required, the corresponding multiple flexible connectors 7 are arranged around the pile body, and their heights can be the same or different. In a specific embodiment, since the flexible connector 7 is disposed inside the pile body, on the one hand, it can protect the flexible connector 7 from being entangled by plants, etc., and facilitate inspection and maintenance (if it is exposed outside the pile, it is easy to be entangled by plants, etc., when underwater for a long time). On the other hand, it can avoid the impact of the pile driving process on the flexible connector 7. Therefore, it is preferable to dispose of the flexible connector 7 inside the pile body. Specifically, multiple flexible connectors 7 are fixedly disposed inside the pile body, and each flexible connector 7 is at a preset distance from the pile top 101. One end of an anchor cable 3 is fixed to a flexible connector 7, and the other end extends out of the hollow pile 1 through the through hole 1011 opened on the pile top 101. Figure 1 As shown. The preset distance between each flexible connector 7 and the pile top 101 can be 0.3m to 1m. This distance ensures that the pile cap fitted onto the hollow pile 1 during subsequent hammering is not affected. The number of flexible connectors 7 is 2 to 4, and correspondingly, the number of through holes 1011 opened on the pile top 101 is also 2 to 4, as long as one anchor cable 3 extends from one through hole 1011. In this embodiment of the invention, the length of the anchor cable 3 is not only sufficient to meet the distance between two points, but also needs to have a certain deformation resistance length, which is determined by calculation.

[0068] In this embodiment of the invention, the flexible connector 7 is set at a preset distance from the pile top 101, rather than at the pile top 101. This is mainly to prevent the impact of pile driving on the flexible connector 7 during construction. The flexible connector 7 is already installed on the pile before the pile is submerged, thus reducing underwater operations.

[0069] For example, each flexible connector 7 includes a lug and a flexible pad;

[0070] The lug is an arc-shaped structure with a connecting hole for attaching the anchor cable 3. Specifically, it can be a round hole made on an arc-shaped steel plate or a steel strand bent into a round hole.

[0071] A flexible pad is disposed on the wall of the connection hole;

[0072] One end of an anchor cable 3 is fixed to a connecting hole. The anchor cable 3 is fixed to the connecting hole in a detachable manner, which facilitates future maintenance.

[0073] In this embodiment, a flexible pad is provided on the hole wall of the connecting hole to prevent the anchor cable 3 from colliding with the hole wall and reduce wear.

[0074] To further enhance the pull-out resistance of the hollow pile 1, this embodiment of the invention also provides multiple reinforcing bars 8;

[0075] Multiple reinforcing bars 8 are fixedly installed on the outer wall of the hollow pile 1 and located in the area where the counterweight module 2 and / or the reinforcement module 6 are located.

[0076] In this embodiment of the invention, the multiple reinforcing bars 8 can be arranged around the outer wall of the hollow pile 1 in an array, or they can be arranged individually in a row or column. Since the array arrangement around the outer wall of the hollow pile 1 significantly increases the pull-out resistance of the hollow pile 1, this embodiment of the invention preferably uses an array arrangement around the outer wall of the hollow pile 1.

[0077] In this embodiment of the invention, the reinforcing bar 8 can be a straight bar or a steel bar with a preset bending angle. When it is a straight bar, the extension direction of the straight bar is perpendicular to the axis of the hollow pile 1. When it is a steel bar with a preset bending angle, its unbent portion is perpendicular to the axis of the hollow pile 1.

[0078] Furthermore, when using reinforcing bars with a preset bending angle, in this embodiment of the invention, the bending directions of two axially adjacent reinforcing bars 8 in the hollow pile 1 are opposite, such as... Figure 4 As shown.

[0079] For example, the end of the grab bar 8 is provided with a 90° hook, and the hooks of the grab bar 8 are arranged at intervals of upward and downward. One hook is arranged at 15° to 30° along the circumference of the pile body, and a row is arranged every 10 to 30 cm along the height. The total length of the grab bar 8 is 50 to 100 cm. The grab bar 8 is an HRB400 steel bar with a diameter of 22 mm to 32 mm. The present invention sets the grab bar 8 on the pile body, which enables the counterweight module 2 and / or the reinforcement module 6 to function. When the pile body has upward displacement, the grab bar 8 will firmly grasp the counterweight module 2 and / or the reinforcement module 6, increasing the pull-out resistance; in addition, the grab bar 8 also increases the frictional resistance of the pile body.

[0080] To facilitate the installation of hollow piles, the anchoring device for floating photovoltaic systems in this embodiment of the invention further includes a pile cap 9 and a base plate 902 fixedly installed inside the pile cap 9, such as... Figure 5 As shown, the pile cap 9 and the base plate 902 are an integral structure. The pile cap 9 is a precast steel pipe used to fit over the top 101 of the hollow pile 1 during pile driving. Specifically, one end of the pile cap 9 is connected to the top 101 of the hollow pile 1 through the base plate 902, and the other end extends beyond the sea surface 5. Typically, the length extending beyond the sea surface 5 is at least 30cm to facilitate pile driving. The cross-sectional shape of the pile cap 9 is the same as that of the pile body, but its dimensions are slightly larger than the pile body by 5 to 30cm.

[0081] To avoid damage to the anchor cable 3 during pile construction, this embodiment of the invention also includes a cable-winding post 10;

[0082] The cable-stayed post 10 is fixedly installed on the inner wall of the pile cap 9;

[0083] A cable-winding hole 903 is provided on the side wall of the pile cap 9;

[0084] The position of the cable-winding hole 903 corresponds to that of the cable-winding post 10, and is at a preset distance from the cable-winding post 10.

[0085] An anchor cable 3 passes through the through hole 1011 and the base plate 902 in sequence and is wound onto the cable post 10.

[0086] For example, 2 to 4 cable-passing holes 9021 are provided on the base plate 902, such as... Figure 6 As shown, the side wall of the pile cap 9 is provided with 2 to 4 cable-winding posts 10 and 2 to 4 cable-winding holes 903. The cable-winding holes 903 are located around the cable-winding posts 10 for easy access. The side length of the cable-winding holes 903 is 20cm to 60cm. Then, an anchor cable 3 passes through the through hole 1011 and the base plate 902 in sequence and winds around a cable-winding post 10.

[0087] The cable-winding post 10 of this invention is used to wind the anchor cable 3 during the construction phase. The cable-winding hole 903 is used to wind and hang the anchor cable 3 on the cable-winding post 10. The cable-passing hole 9021 on the base plate 902 also serves as a flushing hole.

[0088] The cable-through hole 9021 facilitates the installation of anchor cables 3 and utilizes water load. During construction, the pile cap 9 is under flat pressure, which is beneficial for positioning the pile cap 9. At the same time, it enhances the gravity of the pile cap 9, which can replace part of the piling force with gravity, which is beneficial for piling.

[0089] In this embodiment of the invention, only the pile cap 9, the base plate 902, and the cable-stayed column 10 used in the construction process can be reused, which reduces the cost of the anchoring device for floating photovoltaic systems and is suitable for large-scale offshore photovoltaic development.

[0090] To facilitate the later operation and maintenance of anchor cable 3 and flexible connector 7, in this embodiment of the invention, the pile top 101 of hollow pile 1 is set to be detachably connected to the pile body, and the pile top 101 can be opened, which also serves as a pollution prevention function.

[0091] Since the anchoring device for floating photovoltaic systems in this application is to be installed in seawater, it is necessary to coat the surface of each component with an anti-corrosion protective film to extend its service life and reduce operation, maintenance and replacement costs.

[0092] The construction process of the anchoring device for floating photovoltaic systems of the present invention is as follows:

[0093] 1. Piling. The prefabricated hollow piles 1, counterweight modules 2, pile caps 9, anchor cables 3 and other anchoring device components are towed to the designated area at sea.

[0094] 2. Assembly. Assemble the pile cap 9, anchor cables 3, and hollow pile 1 together. First, pass one end of one anchor cable 3 through the through hole 1011 at the top 101 of the hollow pile 1 and hang it on the lug inside the pile body; then pass the other end of the anchor cable 3 through the base plate 902, and with the help of the cable looping hole 903, hang the anchor cable 3 on the cable looping post 10. Repeat the above operation to hang multiple anchor cables 3 designed for the pile on the cable looping post 10 and the lugs. After all the anchor cables 3 are installed in place, fasten the pile cap 9 to the hollow pile 1.

[0095] 3. Positioning and driving the pile. According to the design requirements, the pile is lowered to the designated position, aligned with the center line of the pile cap 9 and the hollow pile 1, and hammered on the top 901 of the pile cap to drive the hollow pile 1 into the seabed 4 at the designated design elevation.

[0096] 4. Lower counterweight module 2. Lower counterweight module 2 to the seabed surface along the outer ring of pile cap 9. For seabed surfaces requiring grouting, after counterweight module 2 is in place, perform grouting through the pre-installed grouting pipe.

[0097] 5. Remove pile cap 9 and attach float 11. After the hollow pile 1 and counterweight module 2 are completed, lift pile cap 9. As pile cap 9 is lifted, the anchor cables 3 attached to the cable anchor 10 automatically reach the water surface. Remove anchor cables 3 and place multiple anchor cables 3 from each pile into a numbered float 11. The float 11 carries the anchor cables 3 and floats on the sea surface 5, facilitating the positioning of the photovoltaic float and anchoring structure.

[0098] The anchoring device for floating photovoltaic systems of the present invention has the following beneficial effects:

[0099] 1. The top of the pile 101 can be opened and a through hole 1011 is reserved. On the one hand, the end of the anchor cable 3 is easy to maintain, and on the other hand, the pile cavity is filled with water, and the internal and external pressure of the pile body is flat, which is conducive to the stability of the pile body. At the same time, it increases the overall weight of the pile body, which is conducive to improving the frictional resistance and enhancing the pull-out resistance of the anchoring device.

[0100] 2. A counterweight module 2 is provided around the pile, which increases the pull-out resistance of the hollow pile 1 and provides protection for the pile body, ensuring the stability of the anchoring device in complex marine environments.

[0101] 3. When the geological conditions of the seabed 4 do not meet the pull-out resistance requirements of the pile body, a grouting pipe 603 is reserved in the cage, and a closed cage wall 601 is provided at the bottom of the cage. By injecting specific grout, the geological structure of the seabed 4 is filled and improved to provide better foundation conditions for the seabed 4 and enhance the overall stability and strength of the structure. At the same time, the scour resistance of the anchoring structure is enhanced.

[0102] 4. The base plate 902 and the pile cap 9 have openings on their caps. This facilitates the installation of anchor cables 3 and utilizes water load. During construction, the pile cap 9 is under flat pressure, which is beneficial for positioning the pile cap 9. At the same time, it enhances the weight of the pile cap 9, allowing gravity to replace part of the piling force, which is beneficial for piling.

[0103] 5. During construction, the anchor cable 3 is hung on the pile cap 9 and the side wall of the pile body to avoid the impact of the pile driving process on the anchor cable 3.

[0104] 6. After the pile driving is completed, as the pile cap 9 is lifted, the anchor cable 3 hanging on the pile cap 9 and the cable post 10 will automatically reach the water surface. The anchor cable 3 will be removed and the numbered floats will be installed to facilitate the positioning of the float and the anchoring structure.

[0105] 7. Before the pile driving construction, anchor cable 3 has already been installed inside the pile body, so there is no need to install anchor cable 3 underwater.

[0106] 8. The main structures constituting the anchoring device are all prefabricated components, which reduces the difficulty of installation and solves the problems of high difficulty and low safety in offshore construction. Moreover, due to the clear positioning of the piles, the construction progress is accelerated, making it suitable for large-scale offshore photovoltaic development.

[0107] The above description is merely a few embodiments of this application and is not intended to limit this application in any way. Although this application discloses preferred embodiments as described above, it is not intended to limit this application. Any changes or modifications made by those skilled in the art without departing from the scope of the technical solution of this application using the disclosed technical content are equivalent to equivalent implementation cases and fall within the scope of the technical solution.

Claims

1. An anchoring device for floating photovoltaic systems, characterized in that, This includes hollow piles with multiple through holes at the top, counterweight modules, and anchor cables; The bottom of the hollow pile extends into the seabed and is fixedly connected to the seabed, while the top of the pile is below the sea surface. The counterweight module is enclosed on the outer wall of the hollow pile and is in contact with the upper surface of the seabed; One end of the anchor cable is set on the pile body of the hollow pile and flexibly connected to the pile body, and the other end is connected to the floating body of the floating photovoltaic. It also includes a reinforcement module; The reinforcement module is disposed within the seabed and surrounds the outer wall of the hollow pile; The reinforcement module includes a cage wall and a grouting unit; The cage wall is set inside the seabed and surrounds the outer wall of the hollow pile; The grouting unit extends through the counterweight module into the cage wall for grouting the cage wall; It also includes flexible connectors; The flexible connector is fixedly installed inside the pile body; The flexible connector is at a preset distance from the top of the pile; One end of the anchor cable is fixed to the flexible connector, and the other end extends through the through hole opened on the top of the pile, protruding from the hollow pile and connecting to the float of the floating photovoltaic system.

2. The anchoring device for floating photovoltaic systems according to claim 1, characterized in that, The flexible connector includes lugs and a flexible padding layer; A connection hole is provided on the lug; The flexible pad is disposed on the wall of the connecting hole; One end of the anchor cable is fixed to the connecting hole.

3. The anchoring device for floating photovoltaic systems according to claim 1, characterized in that, It also includes multiple tendons; The multiple reinforcing bars are fixedly installed on the outer wall of the hollow pile and are located in the area where the counterweight module and / or the reinforcement module are located.

4. The anchoring device for floating photovoltaic systems according to claim 3, characterized in that, Each of the aforementioned reinforcing bars is a steel bar with a preset bending angle; The bending directions of the two axially adjacent reinforcing bars in the hollow pile are opposite.

5. The anchoring device for floating photovoltaic systems according to claim 1, characterized in that, It also includes a pile cap and a base plate fixedly disposed inside the pile cap; One end of the pile cap is connected to the top of the hollow pile through the base plate, and the other end extends out of the sea surface.

6. The anchoring device for floating photovoltaic systems according to claim 5, characterized in that, It also includes Rao Suozhu; The cable-stayed post is fixedly installed on the inner wall of the pile cap; The pile cap has a cable-winding hole on its side wall; The cable-winding hole corresponds to the position of the cable-winding post and is at a preset distance from the cable-winding post; The anchor cable passes through the through hole and the base plate in sequence and is wound onto the cable post.

7. The anchoring device for floating photovoltaic systems according to claim 1, characterized in that, The top of the pile is detachably connected to the pile body.

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