Novel offshore floating type photovoltaic winged gravity type anchoring foundation

Abstract

The offshore floating type photovoltaic winged novel gravity type anchoring foundation comprises an anchoring foundation body, a cable connecting base, a load torque resisting mechanism, a modular connecting mechanism and a connecting cable stabilizing mechanism, the cable connecting base is fixedly arranged in the middle of the top of the anchoring foundation body, and a wing plate is integrally and fixedly arranged in the middle of the four edges of the anchoring foundation body; a first apron board is fixedly arranged in the middle of the bottom of the wing plate in a matched mode, a mounting groove is formed in the middle of the bottom of the anchoring foundation body, an anti-torque disc is embedded in the mounting groove, a second apron board is fixedly arranged at the bottom of the anti-torque disc in a surrounding mode, threaded counterbores are formed in the mounting groove and the upper portion of the anti-torque disc in a matched mode, and a waterproof mechanism is arranged in the mounting groove. Modular connecting mechanisms are arranged at the four corners of the anchoring foundation body, and cable stabilizing mechanisms are arranged on the cable connecting bases. Through the synergistic effect of the four-way wing plates and the bottom anti-torque disc, the transverse load and the anti-torque performance are remarkably improved by combining the double-layer apron board structure, and a large-scale anchoring network is formed by connecting multiple foundation units in series.

Description

Technical Field

[0001] The invention relates to the technical field of offshore floating system anchoring foundation structure, and in particular to a novel offshore floating photovoltaic wing gravity anchoring foundation. Background Art

[0002] In offshore floating platform projects, the anchoring system effectively suppresses large-scale movement by applying multi-dimensional restraints to the top floating body, thereby ensuring the stable operation of the offshore floating system in complex marine environments. Gravity anchors, as a common foundation form for offshore floating systems, generate vertical pullout resistance through their own weight, and use the friction mechanism of the anchor-soil interface to form lateral constraints to maintain their own stability. Its mechanical transmission path is simple, it has a wide range of geological adaptability, and its construction cost is low, making it an anchoring option with application value in offshore projects;

[0003] As a key anchoring component, gravity anchors have been maturely applied in the fields of ocean current generators, ocean thermal power generation, and wave energy converters. However, when it is applied to offshore floating photovoltaic arrays, the particularity of the kilometer-level plane scale of photovoltaic floats causes the gravity anchors to be subjected to significant torsion under the composite marine environmental load (wind-wave-current coupling). Therefore, the present invention proposes a new gravity anchor foundation for offshore floating photovoltaic wing to solve the problems existing in the prior art. Summary of the invention

[0004] In view of the above problems, the purpose of the present invention is to propose a new type of gravity-type anchoring foundation for offshore floating photovoltaic wing. The new type of gravity-type anchoring foundation for offshore floating photovoltaic wing significantly improves the lateral load and torque resistance through the synergistic effect of the four-way wing plate and the bottom anti-torque disk, combined with the double-layer skirt structure, and utilizes a modular connection mechanism to realize the series connection of multiple basic units to form a large-scale anchoring network. The replaceable anti-torque disk design reduces maintenance costs, and the waterproof sealing structure ensures long-term stable operation. At the same time, the cable stabilization mechanism limits the displacement of the cable through a rigid frame, which effectively solves the technical problems of insufficient anti-torsion performance of the anchoring foundation of the offshore floating photovoltaic system in a complex marine environment, difficulty in large-scale expansion, and easy entanglement of the cable.

[0005] To achieve the object of the present invention, the present invention is realized through the following technical solutions: A novel gravity type anchoring foundation with wings for a floating photovoltaic system at sea, comprising an anchoring foundation main body, a cable connection seat, an anti-load torque mechanism, a modular connection mechanism, and a connection cable stabilizing mechanism. A cable connection seat is fixedly provided in the middle of the top of the anchoring foundation main body. The anti-load torque mechanism includes wing plates, a first skirt plate, an installation groove, an anti-torque disc, a second skirt plate, threaded countersunk holes, and a waterproof mechanism. Wing plates are integrally and fixedly provided in the middle of the four sides of the anchoring main body. A first skirt plate is fixedly provided in the middle of the bottom of the wing plates. An installation groove is formed in the middle of the bottom of the anchoring foundation main body. An anti-torque disc is embedded in the installation groove. A second skirt plate is fixedly provided around the bottom of the anti-torque disc. Threaded countersunk holes are formed in the installation groove and above the anti-torque disc. A waterproof mechanism is provided in the installation groove. Modular connection mechanisms are provided at the four corners of the anchoring foundation main body. A cable stabilizing mechanism is provided on the cable connection seat.

[0006] A further improvement lies in that: A plurality of groups of the threaded countersunk holes are provided, and the installation groove and the anti-torque disc are bolted and fixed.

[0007] A further improvement lies in that: The waterproof mechanism includes a waterproof seal plug, a sealing groove, and a waterproof sealing ring. A waterproof seal plug is inserted and provided above the threaded countersunk hole. A sealing groove is formed in a surrounding manner above the installation groove. A waterproof sealing ring is fixedly provided on the top of the anti-torque disc.

[0008] A further improvement lies in that: The waterproof sealing ring and the sealing groove are corresponding in up and down positions, and the waterproof sealing ring is embedded in the sealing groove for matching and sealing.

[0009] A further improvement lies in that: The modular connection mechanism includes a module connection seat, a column, a connection rope, a module connection block, and a connection card slot. Module connection seats are fixedly provided at the four corners above the anchoring foundation main body. A column is fixedly provided in the middle of the top of the module connection seat. A connection rope is wound around the column. A module connection block is fixedly provided at the end of the connection rope. Connection card slots are symmetrically formed on the outer side of the module connection seat.

[0010] A further improvement lies in that: The module connection block is snapped and connected with another group of connection card slots, and the anchoring foundation main bodies are connected in series.

[0011] A further improvement lies in that: The cable stabilizing mechanism includes a connection cable, a protective sleeve, and a stabilizing frame. Connection cables are symmetrically wound around the four corners of the cable connection seat. A protective sleeve is sleeved on the outer side of the connection cable. A stabilizing frame is fixedly provided between the protective sleeves.

[0012] The beneficial effects of the present invention are as follows: Through the synergistic effect of the four-way wing plates and the bottom anti-torsion disk, combined with the double-layer skirt plate structure, the present invention significantly improves the lateral load and anti-torsion performance. The modular connection mechanism is used to achieve the series connection of multiple basic units to form a large-scale anchoring network. The replaceable anti-torsion disk design reduces the maintenance cost, and the waterproof sealing structure ensures long-term stable operation. At the same time, the cable stabilizing mechanism restricts the displacement of the cable through a rigid frame, effectively solving the technical problems of insufficient anti-torsion performance of the anchoring foundation, difficult large-scale expansion, and easy entanglement of cables in the offshore floating photovoltaic system. Description of the Drawings

[0013] Figure 1 is the overall top view of the present invention;

[0014] Figure 2 is the overall bottom view of the present invention;

[0015] Figure 3 is the bottom view of the installation groove of the present invention;

[0016] Figure 4 is the top view of the anti-torsion disk of the present invention;

[0017] Figure 5 is the enlarged schematic view at A of the present invention;

[0018] Figure 6 is the overall front view of the present invention;

[0019] Figure 7 is the top view of the stabilizing frame of the present invention;

[0020] Figure 8 is the three-dimensional schematic view of the main body of the anchoring foundation of the present invention;

[0021] Figure 9 is the three-dimensional schematic view of the anti-torsion disk of the present invention.

[0022] Wherein: 1. Main body of the anchoring foundation; 2. Cable connection seat; 3. Wing plate; 4. First skirt plate; 5. Installation groove; 6. Anti-torsion disk; 7. Second skirt plate; 8. Threaded countersunk hole; 9. Waterproof sealing plug; 10. Sealing groove; 11. Waterproof sealing ring; 12. Module connection seat; 13. Column; 14. Connecting rope; 15. Module connection block; 16. Connection card slot; 17. Connecting cable; 18. Protective sleeve; 19. Stabilizing frame. Detailed Embodiment

[0023] In order to deepen the understanding of the present invention, the following will further elaborate on the present invention in combination with embodiments. These embodiments are only used to explain the present invention and do not constitute a limitation on the protection scope of the present invention.

[0024] In the traditional technology of the anchoring foundation of the offshore floating system, the gravity anchor generates vertical uplift force through its own weight and relies on the friction at the anchor-soil interface to provide lateral restraint. Due to its simple structure, low cost and strong adaptability, it has been maturely applied in fields such as ocean current power generation and ocean thermal energy power generation. However, when applied to the offshore floating photovoltaic array at the kilometer scale, the traditional gravity anchor bears significant torsion under the combined environmental loads of wind, wave and current, resulting in insufficient anti-torsion ability; at the same time, its single structure is difficult to match the large-scale expansion demand of the photovoltaic floating body, and there are defects such as poor stability of the anchoring system, easy displacement and limited large-scale deployment.

[0025] Based on this, according to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 8 、 Figure 9 As shown in the figure, this embodiment provides a novel gravity-type anchoring foundation for an offshore floating photovoltaic with wings, which includes an anchoring foundation main body 1, a cable connection seat 2, an anti-load torque mechanism, a modular connection mechanism and a connection cable 17 stabilization mechanism. A cable connection seat 2 is fixedly arranged in the middle of the top of the anchoring foundation main body 1. The anti-load torque mechanism includes a wing plate 3, a first skirt plate 4, an installation groove 5, an anti-torque disc 6, a second skirt plate 7, a threaded countersunk hole 8 and a waterproof mechanism. Wing plates 3 are integrally and fixedly arranged in the middle of the four sides of the anchoring main body. A first skirt plate 4 is fixedly arranged in the middle of the bottom of the wing plate 3. An installation groove 5 is opened in the middle of the bottom of the anchoring foundation main body 1. An anti-torque disc 6 is embedded in the installation groove 5. A second skirt plate 7 is fixedly arranged around the bottom of the anti-torque disc 6. Multiple groups of threaded countersunk holes 8 are arranged in the installation groove 5 and above the anti-torque disc 6. The installation groove 5 and the anti-torque disc 6 are bolt-fixed. When the offshore floating platform is installed, the anchoring foundation main body 1 is sunk to the seabed and contacts the seabed plane. The first skirt plate 4 and the second skirt plate 7 are used to contact the shallow soil of the seabed, making full use of the resistance of the shallow soil of the seabed to enhance the overall ability of the gravity-type anchoring foundation of the offshore floating photovoltaic to resist lateral loads and the torque generated by non-coplanar loads. At the same time, when the second skirt plate 7 is worn after the long-term use of the anchoring foundation main body 1, the anti-torque disc 6 is removed and replaced. The first skirt plate 4 and the second skirt plate 7 are used to increase the contact area between the anchoring foundation and the soil, improve the overall horizontal and anti-torsion bearing capacity of the foundation, limit the displacement of the anchoring foundation main body 1 under cyclic loads, and effectively extend the service life of the anchoring foundation main body 1. A waterproof mechanism is arranged in the installation groove 5. Modular connection mechanisms are arranged at the four corners of the anchoring foundation main body 1. A cable stabilization mechanism is arranged on the cable connection seat 2.

[0026] The waterproof mechanism includes a waterproof seal plug 9, a sealing groove 10, and a waterproof sealing ring 11. Above the threaded counterbore 8, a waterproof seal plug 9 is inserted in a matching manner. Above the installation groove 5, a sealing groove 10 is circumferentially formed. On the top of the anti-torque disc 6, a waterproof sealing ring 11 is fixedly provided. The waterproof sealing ring 11 corresponds to the sealing groove 10 in the vertical position. The waterproof sealing ring 11 is embedded in the sealing groove 10 for mating sealing. When the anti-torque disc 6 is replaced, the anti-torque disc 6 is embedded in the installation groove 5 so that the waterproof sealing ring 11 is simultaneously embedded in the sealing groove 10. Then, bolts are screwed into the threaded counterbore 8 to connect and fix the anchoring foundation main body 1 and the anti-torque disc 6, realizing the quick replacement and installation of the anti-torque disc 6 and the second skirt plate 7.

[0027] The modular connection mechanism includes a module connection seat 12, a column 13, a connection rope 14, a module connection block 15, and a connection card slot 16. At the four corners above the anchoring foundation main body 1, module connection seats 12 are fixedly provided. In the middle of the top of the module connection seat 12, a column 13 is fixedly provided in a matching manner. A connection rope 14 is wound around the column 13. At the end of the connection rope 14, a module connection block 15 is fixedly provided. On the outside of the module connection seat 12, connection card slots 16 are symmetrically formed. The module connection block 15 is inserted into and connected with another group of connection card slots 16, and the anchoring foundation main bodies 1 are connected in series. When facing a large offshore floating photovoltaic platform, the stable effect of a single anchoring foundation main body 1 is limited. When the number of anchoring foundation main bodies 1 needs to be increased, the module connection block 15 is inserted into the connection card slot 16 on the adjacent anchoring foundation main body 1 to connect the adjacent anchoring foundation main bodies 1 in series, effectively improving the stability of the anchoring foundation main body 1. At the same time, it is convenient to increase or decrease the number of anchoring foundation main bodies 1 according to the scale of the photovoltaic platform.

[0028] The cable stabilizing mechanism includes a connection cable 17, a protective sleeve 18, and a stabilizing frame 19. At the four corners of the cable connection seat 2, the connection cables 17 are symmetrically wound. A protective sleeve 18 is sleeved outside the connection cable 17. A stabilizing frame 19 is fixedly provided between the protective sleeves 18. The stabilizing frame 19 is used to limit multiple cables, effectively preventing the cables from being wound around each other.

[0029] When the offshore floating photovoltaic winged new gravity type anchoring foundation is in use, first, the anchoring foundation main body is sunk to the seabed to contact the seabed. The anti-lateral load and torque capabilities are enhanced by embedding the first skirt plate and the second skirt plate at the bottom into the shallow soil layer. During installation, the anti-torque disc is fixed by bolts in the installation groove and waterproofing is achieved by cooperating with the waterproof sealing ring; the cable connection seat at the top is connected to the floating platform through multiple connection cables with stabilizing frames to prevent the cables from being wound; when the anchoring system needs to be expanded, multiple foundation units are connected in series through the modular connection mechanism at the four corners, and the module connection block at the end of the connection rope is locked with the adjacent foundation card slot to form a large-scale anchoring network; during use, if the second skirt plate is worn, the anti-torque disc can be removed and replaced to realize the maintainability of key components, thereby continuously ensuring the stability and bearing capacity of the anchoring system.

[0030] The basic principles, main features and advantages of the present invention have been shown and described above. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and what is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A new type of gravity anchor foundation for offshore floating photovoltaic with wings, characterized by: The invention comprises an anchoring foundation body (1), a cable connection seat (2), an anti-load torque mechanism, a modular connection mechanism and a connecting cable (17) stabilizing mechanism, wherein the cable connection seat (2) is fixedly provided in the middle of the top of the anchoring foundation body (1), the anti-load torque mechanism comprises a wing plate (3), a first skirt plate (4), a mounting groove (5), an anti-torque disc (6), a second skirt plate (7), a threaded countersunk hole (8) and a waterproof mechanism, and the wing plate (3) is integrally fixedly provided in the middle of the four sides of the anchoring body, and the wing plate (3) is matched in the middle of the bottom A first skirt plate (4) is fixedly provided, a mounting groove (5) is provided in the middle of the bottom of the anchor foundation body (1), an anti-torque disc (6) is embedded in the mounting groove (5), a second skirt plate (7) is fixedly provided around the bottom of the anti-torque disc (6), threaded countersunk holes (8) are provided in the mounting groove (5) and above the anti-torque disc (6), a waterproof mechanism is provided in the mounting groove (5), modular connection mechanisms are provided at the four corners of the anchor foundation body (1), and a cable stabilization mechanism is provided on the cable connection seat (2).

2. According to claim 1, a new gravity anchor foundation for offshore floating photovoltaic with wings, characterized in that: The threaded countersunk holes (8) are provided in multiple groups, and the mounting groove (5) is fixed to the anti-torque disc (6) by bolts.

3. According to claim 1, a new gravity anchor foundation for offshore floating photovoltaic with wings, characterized in that: The waterproof mechanism comprises a waterproof sealing plug (9), a sealing groove (10) and a waterproof sealing ring (11); a waterproof sealing plug (9) is inserted into the threaded countersunk hole (8); a sealing groove (10) is provided around the top of the mounting groove (5); and a waterproof sealing ring (11) is fixedly provided on the top of the anti-torque disc (6).

4. According to claim 3, a new gravity anchor foundation for offshore floating photovoltaic with wings, characterized in that: The waterproof sealing ring (11) corresponds to the sealing groove (10) in upper and lower positions, and the waterproof sealing ring (11) is embedded in the sealing groove (10) to cooperate with the sealing.

5. According to claim 1, a new gravity anchor foundation for offshore floating photovoltaic with wings, characterized in that: The modular connection mechanism comprises a module connection seat (12), a column (13), a connection rope (14), a module connection block (15) and a connection slot (16); the module connection seat (12) is fixedly provided at the four corners above the anchor foundation body (1); a column (13) is fixedly provided in the middle of the top of the module connection seat (12); a connection rope (14) is wound around the column (13); a module connection block (15) is fixedly provided at the end of the connection rope (14); and connection slots (16) are symmetrically provided on the outer side of the module connection seat (12).

6. According to claim 5, a new gravity anchor foundation for offshore floating photovoltaic with wings, characterized in that: The module connection block (15) is snap-fitted and connected with another group of connection slots (16), and the anchoring foundation bodies (1) are connected in series.

7. According to claim 1, a new gravity anchor foundation for offshore floating photovoltaic with wings, characterized in that: The cable stabilizing mechanism comprises a connecting cable (17), a protective cover (18) and a stabilizing frame (19); the connecting cables (17) are symmetrically wound around the four corners of the cable connecting seat (2); the protective cover (18) is sheathed on the outer side of the connecting cable (17); and the stabilizing frame (19) is fixed between the protective covers (18).

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