Offshore photovoltaic foundation anti-sinking device

Abstract

The offshore photovoltaic foundation anti-sinking device comprises an anti-sinking part and a conical rubber gasket, the anti-sinking part is in a plate shape, a penetrating reserved connector is formed in the middle of the upper surface of the anti-sinking part, the conical rubber gasket wraps the surface of a foundation pile in a surrounding mode, and the foundation pile is inserted into the reserved connector and fixed through the conical rubber gasket. The anti-sinking part has large overall rigidity and area, and the anti-sinking characteristic is obvious. The anti-sinking part adopts a land prefabricated finished product and is directly hoisted and installed after field positioning, the offshore operation difficulty is effectively reduced, the offshore operation time is saved, the overall rigidity and area of the anti-sinking part are large, the capacity of the photovoltaic foundation for resisting differential settlement can be effectively improved, meanwhile, the anti-sinking part is made of conventional reinforced concrete or rubber synthetic materials, and the cost is low. The cost is low.

Description

Technical Field

[0001] This invention relates to an anti-sinking device for offshore photovoltaic foundations, belonging to the technical field of offshore wind power foundation equipment and facilities. Background Technology

[0002] Traditional onshore photovoltaic (PV) systems suffer from numerous problems, such as large land occupation, which hinders their further development. Compared to traditional centralized and distributed onshore PV power generation, offshore PV projects have the advantage of requiring less land resources. Currently, offshore PV has been developed and implemented in China as a new type of PV power generation. However, the construction of offshore PV projects in Zhejiang and Fujian provinces faces the challenge of foundation settlement caused by deep silt layers on the seabed. The PHC pile foundations currently used in these areas are experiencing long-term uneven settlement during operation, leading to cracking of the PV modules and reducing the overall power generation of the offshore PV field. Summary of the Invention

[0003] The purpose of this invention is to provide a device to prevent the sinking of offshore photovoltaic foundations. This invention mainly solves the problem of power generation loss in photovoltaic fields caused by long-term uneven settlement of nearshore photovoltaic pile foundations in areas with deep silt layers.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a marine photovoltaic foundation anti-sinking device, comprising an anti-sinking part and a conical rubber pad, wherein the anti-sinking part is plate-shaped and has a through reserved interface in the middle of the upper surface, the conical rubber pad surrounds the surface of the foundation pile, the foundation pile is inserted into the reserved interface and fixed by the conical rubber pad, the anti-sinking part has a large overall rigidity and area, and the anti-sinking characteristics are obvious.

[0005] The aforementioned anti-sinking device for marine photovoltaic foundations features a conical rubber pad with a right-angled triangle cross-section. The straight side of the conical rubber pad is glued to the outer wall of the foundation pile with epoxy resin, which facilitates the fixing of the foundation pile to the reserved interface of the anti-sinking part. The structure is simple and easy to use.

[0006] The aforementioned anti-sinking device for marine photovoltaic foundations has an anti-sinking part that is frustum-shaped.

[0007] The aforementioned anti-sinking device for marine photovoltaic foundations includes an anti-sinking section comprising a hollow top wall, a bottom plate, and a skirt plate. The top wall and bottom plate are respectively set at the upper and lower ends of the skirt plate to form a hollow shell. The surface of the top wall is provided with multiple drainage holes, and the middle of the top wall and the bottom plate are provided with through holes to form a reserved interface.

[0008] The aforementioned marine photovoltaic foundation anti-sinking device also includes bulkheads, which are vertically installed between the top wall and the bottom plate and fixedly connected to the skirt plate. The four bulkheads are arranged at 90° intervals around the reserved interface, and the bulkheads divide the interior into four fan-shaped compartments to improve the overall rigidity.

[0009] The aforementioned anti-sinking device for marine photovoltaic foundations has an anti-sinking component that is a cuboid.

[0010] The aforementioned anti-sinking device for marine photovoltaic foundations includes a bottom shell and a top cover plate. The top cover plate is fixed above the bottom shell to form a hollow cuboid. The surface of the top cover plate is provided with multiple drainage holes. Both the top cover plate and the bottom shell are provided with through holes in the middle to form a reserved interface.

[0011] The aforementioned marine photovoltaic foundation anti-sinking device has a cross-shaped bulkhead inside the bottom shell, and the cross-shaped bulkhead has a through hole in the middle corresponding to the reserved interface, which can improve the overall rigidity of the device.

[0012] The aforementioned anti-sinking device for marine photovoltaic foundations may be made of reinforced concrete or composite rubber.

[0013] Compared with the prior art, the present invention has at least the following beneficial effects:

[0014] (1) The anti-sinking part of the present invention is a prefabricated product on land, which can be directly hoisted and installed after on-site positioning, effectively reducing the difficulty of offshore operations and saving 10% of the time of offshore operations.

[0015] (2) The anti-settlement part of the present invention has a large overall rigidity and area, which can effectively improve the ability of photovoltaic foundation to resist uneven settlement.

[0016] (3) This invention is made using conventional reinforced concrete or rubber synthetic materials, and is inexpensive.

[0017] (4) The present invention can complete the product construction using existing processes and mechanical equipment. The process is simple and the installation is convenient and easy. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of the circular anti-sinking part installation structure of the present invention;

[0019] Figure 2 This is a three-dimensional schematic diagram of the rectangular anti-sinking part installation structure of the present invention;

[0020] Figure 3 This is a plan view of the conical rubber gasket of the present invention;

[0021] Figure 4 yes Figure 3 Cross-sectional view at point A;

[0022] Figure 5 This is a schematic diagram of the explosion structure of the circular anti-sinking part of the present invention;

[0023] Figure 6 This is a schematic diagram of the rectangular anti-sinking part explosion structure of the present invention.

[0024] Reference numerals: 1-Anti-sinking section, 11-Top wall, 12-Bottom plate, 13-Skirt, 14-Block bulkhead, 101-Bottom hull, 102-Top cover plate, 103-Cross bulkhead, 2-Conical rubber pad, 3-Reserved interface, 4-Foundation pile.

[0025] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Detailed Implementation

[0026] Embodiment 1 of the present invention: To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a marine photovoltaic foundation anti-sinking device, including an anti-sinking part 1 and a conical rubber pad 2. The anti-sinking part 1 is plate-shaped and has a through reserved interface 3 in the middle of the upper surface. The conical rubber pad 2 surrounds the surface of the foundation pile 4. The foundation pile 4 is inserted into the reserved interface 3 and fixed by the conical rubber pad 2. The anti-sinking part 1 has a large overall rigidity and area, and the anti-sinking characteristics are obvious.

[0027] Embodiment 2 of the present invention: To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A marine photovoltaic foundation anti-sinking device, comprising an anti-sinking part 1 and a conical rubber pad 2, wherein the anti-sinking part 1 is plate-shaped and has a through reserved interface 3 in the upper middle part, the conical rubber pad 2 has a right-angled triangle cross section, the straight wall side of the conical rubber pad 2 is glued to the outer wall of the foundation pile 4 with epoxy resin and surrounds it, the foundation pile 4 is inserted into the reserved interface 3 and fixed by the conical rubber pad 2, the conical rubber pad 2 facilitates the fixing of the foundation pile 4 in the reserved interface 3 of the anti-sinking part 1, the anti-sinking part 1 has a large overall rigidity and area, and the anti-sinking characteristics are obvious.

[0028] Embodiment 3 of the present invention: To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A marine photovoltaic foundation anti-sinking device, comprising an anti-sinking part 1 and a conical rubber pad 2, wherein the anti-sinking part 1 is plate-shaped and has a through reserved interface 3 in the upper middle part, the conical rubber pad 2 has a right-angled triangle cross section, the straight wall side of the conical rubber pad 2 is glued to the outer wall of the foundation pile 4 with epoxy resin and surrounds it, the foundation pile 4 is inserted into the reserved interface 3 and fixed by the conical rubber pad 2, the conical rubber pad 2 facilitates the fixing of the foundation pile 4 in the reserved interface 3 of the anti-sinking part 1, the anti-sinking part 1 has a large overall rigidity and area, and the anti-sinking characteristics are obvious.

[0029] The anti-sinking part 1 is frustum-shaped and includes a hollow top wall 11, a bottom plate 12, and a skirt plate 13. The top wall 11 and the bottom plate 12 are respectively set at the upper and lower ends of the skirt plate 13 to form a hollow shell. The surface of the top wall 11 is provided with multiple drainage holes. The top wall 11 and the bottom plate 12 are both provided with through holes to form a reserved interface 3. It also includes a bulkhead 14. The bulkhead 14 is vertically set between the top wall 11 and the bottom plate 12 and is fixedly connected to the skirt plate 13. The four bulkheads 14 are arranged at 90° intervals around the reserved interface 3. The bulkheads 14 divide the interior into four fan-shaped compartments to improve the overall rigidity.

[0030] Anti-sinking section 1 can be made of reinforced concrete or composite rubber material:

[0031] If the diameter of the corresponding photovoltaic foundation pile 4 is less than or equal to 1m and the anti-sinking part 1 is made of reinforced concrete, the wall thickness of the top wall 11, bottom plate 12 and skirt plate 13 of the anti-sinking part 1 is 200mm, the diameter of the anti-sinking part 1 is 3m, a partition wall 14 is set every 90°, which is divided into four fan-shaped partitions, the partition wall 14 is 200mm thick, and the height of the surrounding skirt plate 13 is 1m.

[0032] If the diameter of the corresponding photovoltaic foundation pile 4 is less than or equal to 1m and the anti-sinking part 1 is made of composite rubber material, the wall thickness of the top wall 11, bottom plate 12 and skirt plate 13 of the anti-sinking part 1 is 100mm, the diameter of the anti-sinking part 1 is 2m, a partition wall 14 is set every 90°, which is divided into four fan-shaped partitions, the partition wall 14 is 100mm thick, and the height of the surrounding skirt plate 13 is 0.5m.

[0033] When the diameter of the photovoltaic foundation pile 4 connected to the anti-sinking device is greater than 1m, the circular diameter of the anti-sinking part 1 shall not be less than 5 times the diameter of the corresponding connected photovoltaic foundation pile 4.

[0034] Embodiment 4 of the present invention: To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A marine photovoltaic foundation anti-sinking device, comprising an anti-sinking part 1 and a conical rubber pad 2, wherein the anti-sinking part 1 is plate-shaped and has a through reserved interface 3 in the upper middle part, the conical rubber pad 2 has a right-angled triangle cross section, the straight wall side of the conical rubber pad 2 is glued to the outer wall of the foundation pile 4 with epoxy resin and surrounds it, the foundation pile 4 is inserted into the reserved interface 3 and fixed by the conical rubber pad 2, the conical rubber pad 2 facilitates the fixing of the foundation pile 4 in the reserved interface 3 of the anti-sinking part 1, the anti-sinking part 1 has a large overall rigidity and area, and the anti-sinking characteristics are obvious.

[0035] The anti-sinking part 1 is a cuboid, which includes a bottom shell 101 and a top cover plate 102. The top cover plate 102 is fixed above the bottom shell 101 to form a hollow cuboid. The surface of the top cover plate 102 is provided with multiple drainage holes. The middle of the top cover plate 102 and the bottom shell 101 are provided with through holes to form a reserved interface 3. A cross-shaped bulkhead 103 is provided in the center of the bottom shell 101. The middle of the cross-shaped bulkhead 103 is provided with through holes corresponding to the reserved interface 3. The cross-shaped bulkhead 103 can improve the overall rigidity.

[0036] Anti-sinking section 1 can be made of reinforced concrete or composite rubber material:

[0037] If the diameter of the corresponding photovoltaic foundation pile 4 is less than or equal to 1m and the anti-sinking part 1 is made of reinforced concrete, the wall thickness of the bottom shell 101 and the top cover plate 102 of the anti-sinking part 1 is 200mm, the side length of the anti-sinking part 1 is 3m, the centrally located cross-shaped compartment wall 103 has a wall thickness of 200mm, and is divided into four identical compartments with a side length of 1.5m. The inner height of the bottom shell 101 is 1m.

[0038] If the diameter of the corresponding photovoltaic foundation pile is less than 1m and the anti-sinking device is made of composite rubber material, the bottom shell 101 and the top cover plate 102 of the anti-sinking part 1 have a wall thickness of 100mm and a side length of 2m. A cross-shaped compartment wall 103 with a wall thickness of 100mm is set in the center, which is divided into four identical compartments with a side length of 1m. The inner height of the bottom shell 101 is 0.5m.

[0039] If the diameter of the photovoltaic foundation pile 4 connected to the anti-sinking part 1 is greater than 1m, the rectangular side length of the anti-sinking part 1 shall not be less than 5 times the diameter of the corresponding connected photovoltaic foundation pile 4.

[0040] The working principle of one embodiment of the present invention: The anti-sinking device of the present invention is prefabricated as a whole at a land dock or processing plant. The anti-sinking device is made of reinforced concrete or rubber synthetic material and is circular or rectangular in shape. An interface 3 is reserved in the middle of the anti-sinking part 1. A photovoltaic foundation pile 4 with a ring of conical rubber pads 2 is inserted into the reserved interface 3 in the middle of the anti-sinking part 1 and connected with the anti-sinking part 1 to form a whole. The anti-sinking part 1 has a large overall rigidity and area, and obvious anti-sinking characteristics. The anti-sinking part 1 is placed on the seabed. According to the photovoltaic foundation design scheme, when the pile spacing is small, multiple anti-sinking parts 1 can be connected into a whole. When the pile spacing is large, each foundation pile 4 has an individual anti-sinking part 1 at its bottom.

Claims

1. A device for preventing the sinking of a marine photovoltaic foundation, characterized in that, It includes an anti-sinking part (1) and a conical rubber pad (2). The anti-sinking part (1) is plate-shaped and has a through reserved interface (3) in the middle of the upper surface. The conical rubber pad (2) surrounds the surface of the foundation pile (4). The foundation pile (4) is inserted into the reserved interface (3) and fixed by the conical rubber pad (2).

2. The anti-sinking device for marine photovoltaic foundations according to claim 1, characterized in that, The conical rubber pad (2) has a right-angled triangle cross section, and the straight side of the conical rubber pad (2) is glued to the outer wall of the foundation pile (4) with epoxy resin.

3. A marine photovoltaic foundation anti-sinking device according to claim 1 or 2, characterized in that, The anti-sinking part (1) is frustum-shaped.

4. The anti-sinking device for marine photovoltaic foundations according to claim 2, characterized in that, The anti-sinking part (1) includes a hollow top wall (11), a bottom plate (12) and a skirt plate (13). The top wall (11) and the bottom plate (12) are respectively set at the upper and lower ends of the skirt plate (13) to form a hollow shell. The surface of the top wall (11) is provided with multiple drainage holes. The top wall (11) and the bottom plate (12) are both provided with through holes to form a reserved interface (3).

5. The anti-sinking device for marine photovoltaic foundations according to claim 4, characterized in that, It also includes bulkheads (14), which are vertically arranged between the top wall (11) and the bottom plate (12) and are fixedly connected to the skirt plate (13). The four bulkheads (14) are arranged at 90° intervals around the reserved interface (3).

6. A marine photovoltaic foundation anti-sinking device according to claim 1 or 2, characterized in that, The anti-sinking part (1) is a cuboid.

7. The anti-sinking device for marine photovoltaic foundations according to claim 6, characterized in that, The anti-sinking part (1) includes a bottom shell (101) and a top cover plate (102). The top cover plate (102) is fixed above the bottom shell (101) to form a hollow cuboid. The surface of the top cover plate (102) is provided with multiple drainage holes. The middle of the top cover plate (102) and the bottom shell (101) are provided with through holes to form a reserved interface (3).

8. A marine photovoltaic foundation anti-sinking device according to claim 7, characterized in that, The bottom shell (101) is provided with a cross-shaped bulkhead (103) in the center, and the cross-shaped bulkhead (103) has a through hole in the middle corresponding to the reserved interface (3).

9. A marine photovoltaic foundation anti-sinking device according to claim 1, characterized in that, The anti-sinking part (1) can be made of reinforced concrete or composite rubber.

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