A new type of gravity type anchoring foundation with photovoltaic belt wing floating on sea

Abstract

The application discloses a novel offshore floating photovoltaic winged gravity type anchoring foundation, which comprises an anchoring foundation body, a cable connecting seat, a load resisting torque mechanism, a modular connecting mechanism and a connecting cable stabilizing mechanism, the top middle of the anchoring foundation body is fixedly provided with the cable connecting seat, the middle of the four edges of the anchoring foundation body is integrally fixedly provided with a wing plate, the bottom middle of the wing plate is fixedly provided with a first apron in a matched mode, the bottom middle of the anchoring foundation body is provided with an installation groove, the installation groove is embedded with a torque resisting disc, the bottom of the torque resisting disc is fixedly provided with a second apron in a surrounding mode, the installation groove and the upper side of the torque resisting disc are provided with screw head counterbores in a matched mode, the installation groove is provided with a waterproof mechanism, the four corners of the anchoring foundation body are provided with the modular connecting mechanism, and the cable connecting seat is provided with the cable stabilizing mechanism. Through the cooperation of the four-way wing plate and the bottom torque resisting disc, the horizontal load and the torque resisting performance are remarkably improved in combination with the double-layer apron structure, and the anchoring network is formed in a large scale by connecting a plurality of foundation units in series.

Description

Technical Field

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

[0002] In offshore floating platform projects, anchoring systems effectively suppress large movements by applying multi-dimensional restraining forces to the top buoy, thereby ensuring stable operation of the offshore floating system in complex marine environments. Gravity anchors, a common foundation for offshore floating systems, generate vertical pullout resistance through their own weight and utilize the friction mechanism at the anchor-soil interface to form lateral constraints, maintaining their stability. Their simple mechanical transmission path, wide geological compatibility, and low construction cost make them a valuable anchoring option for offshore projects.

[0003] Gravity anchors, as key mooring components, have been widely used in fields such as ocean current generators, ocean thermal power generation, and wave energy converters. However, when applied to offshore floating photovoltaic arrays, the unique kilometer-scale planar dimensions of the photovoltaic floats result in significant torsional forces on the anchors under the combined marine loads (wind-wave-current coupling). Therefore, this paper proposes a novel gravity anchor foundation with wings for offshore floating photovoltaic arrays to address the challenges of existing technologies. Summary of the Invention

[0004] In response to 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. Its replaceable anti-torque disk design reduces maintenance costs, and cooperates with the waterproof sealing structure to ensure long-term stable operation. At the same time, the cable stabilization mechanism limits the cable displacement through a rigid frame, effectively solving 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 objectives of the present invention, the present invention is implemented through the following technical solutions: a new type of gravity anchoring foundation for offshore floating photovoltaic wings, comprising an anchoring foundation main body, a cable connecting seat, an anti-load torque mechanism, a modular connecting mechanism and a connecting cable stabilizing mechanism, a cable connecting seat is fixedly provided in the middle of the top of the anchoring foundation main body, the anti-load torque mechanism comprises a wing plate, a first skirt plate, an installation groove, an anti-torque disk, a second skirt plate, a threaded countersunk hole and a waterproof mechanism, a wing plate is integrally fixed in the middle of the four sides of the anchoring foundation main body, a first skirt plate is fixed in the middle of the bottom of the wing plate, a mounting groove is provided in the middle of the bottom of the anchoring foundation main body, an anti-torque disk is embedded in the mounting groove, a second skirt plate is fixed around the bottom of the anti-torque disk, threaded countersunk holes are provided in the mounting groove and above the anti-torque disk, a waterproof mechanism is provided in the mounting groove, modular connecting mechanisms are provided at the four corners of the anchoring foundation main body, and a cable stabilizing mechanism is provided on the cable connecting seat.

[0006] A further improvement is that: the threaded countersunk holes are provided in multiple groups, and the mounting grooves are fixed with anti-torque disc bolts.

[0007] Further improvements are: the waterproof mechanism includes a waterproof sealing plug, a sealing groove and a waterproof sealing ring, a waterproof sealing plug is inserted above the threaded countersunk hole, a sealing groove is opened around the top of the installation groove, and a waterproof sealing ring is fixed on the top of the anti-torque disk.

[0008] A further improvement is that the waterproof sealing ring corresponds to the upper and lower positions of the sealing groove, and the waterproof sealing ring is embedded in the sealing groove to cooperate with the sealing.

[0009] Further improvements are: the modular connection mechanism includes a module connection seat, a column, a connecting rope, a module connection block and a connecting slot, the module connection seat is fixed at the four corners above the anchoring foundation body, a column is fixed in the middle of the top of the module connection seat, a connecting rope is wrapped around the column, a module connection block is fixed at the end of the connecting rope, and connecting slots are symmetrically opened on the outside of the module connection seat.

[0010] A further improvement is that the module connection block is snap-connected with another set of connection slots, and the anchoring foundation bodies are connected in series.

[0011] A further improvement is that the cable stabilization mechanism includes a connecting cable, a protective cover and a stabilization frame, the connecting cables are symmetrically wrapped around the four corners of the cable connecting seat, the outer side of the connecting cable is covered with a protective cover, and a stabilization frame is fixed between the protective covers.

[0012] The beneficial effects of the present invention are as follows: the present invention significantly improves the lateral load and anti-torque performance through the synergistic effect of the four-way wing plate and the bottom anti-torque disc, 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. Its replaceable anti-torque disc design reduces maintenance costs, and cooperates with the waterproof sealing structure to ensure long-term stable operation. At the same time, the cable stabilization mechanism limits the cable displacement through a rigid frame, effectively solving the technical problems of insufficient anti-torsion performance of the anchor foundation of the offshore floating photovoltaic system in a complex marine environment, difficulty in large-scale expansion, and easy entanglement of the cable. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

[0015] Figure 3 A bottom view of the mounting groove of the present invention;

[0016] Figure 4 A top view of the anti-torque disc of the present invention;

[0017] Figure 5 This is an enlarged schematic diagram of point A of the present invention;

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

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

[0020] Figure 8 It is a three-dimensional schematic diagram of the anchor foundation body of the present invention;

[0021] Figure 9 3D schematic diagram of the anti-torque disc of the present invention.

[0022] Among them: 1. Anchor foundation body; 2. Cable connection seat; 3. Wing plate; 4. First skirt plate; 5. Mounting groove; 6. Anti-torque plate; 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. Connection rope; 15. Module connection block; 16. Connection slot; 17. Connection cable; 18. Protective cover; 19. Stabilizing frame. DETAILED DESCRIPTION

[0023] In order to deepen the understanding of the present invention, the present invention will be further described in detail below with reference to the examples. The examples are only used to explain the present invention and do not constitute a limitation on the scope of protection of the present invention.

[0024] Traditional anchoring technologies for floating offshore systems rely on gravity anchors to generate vertical pullout resistance through their own weight and lateral restraint through friction at the anchor-soil interface. Due to their simple structure, low cost, and adaptability, these anchors have been widely used in fields such as ocean current power generation and ocean thermal power generation. However, when applied to kilometer-scale floating offshore photovoltaic arrays, traditional gravity anchors experience significant torsional forces under the combined loads of wind, waves, and currents, resulting in insufficient torsional resistance. Furthermore, their single structure makes them difficult to adapt to the large-scale expansion requirements of floating photovoltaic arrays, resulting in poor anchoring stability, susceptibility to displacement, and limited scalable 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, this embodiment provides a new type of gravity anchoring foundation for offshore floating photovoltaic belt wings, including an anchoring foundation main body 1, a cable connecting seat 2, an anti-load torque mechanism, a modular connecting mechanism and a connecting cable 17 stabilization mechanism. A cable connecting seat 2 is fixedly provided 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, a mounting groove 5, an anti-torque disk 6, a second skirt plate 7, a threaded countersunk hole 8 and a waterproof mechanism. A wing plate 3 is fixed integrally in the middle of the four sides of the anchoring foundation main body 1, and a first skirt plate 4 is fixed in the middle of the bottom of the wing plate 3. A mounting groove 5 is provided in the middle of the bottom of the anchoring foundation main body 1, and an anti-torque disk 6 is embedded in the mounting groove 5. A second skirt plate 7 is fixed around the bottom of the anti-torque disk 6, and threaded countersunk holes 8 are provided in the mounting groove 5 and above the anti-torque disk 6. There are multiple groups of threaded countersunk holes 8, and the mounting groove 5 and the anti-torque disk 6 are connected. 6 bolts are used for fixing. When the offshore floating platform is installed, the anchor foundation body 1 is sunk to the seabed and in contact with the seabed plane. The first skirt plate 4 and the second skirt plate 7 are used to contact with the shallow soil of the seabed, making full use of the resistance of the shallow seabed map, and enhancing the overall ability of the gravity anchor foundation of the offshore floating photovoltaic to resist lateral loads and torque generated by non-coplanar loads. At the same time, when the second skirt plate 7 is worn after long-term use of the anchor foundation body 1, the anti-torque disk 6 is removed for replacement. The first skirt plate 4 and the second skirt plate 7 are used to increase the contact area between the anchor foundation and the soil, improve the overall horizontal and anti-torsion bearing capacity of the foundation, limit the displacement of the anchor foundation body 1 under cyclic loads, and effectively extend the service life of the anchor foundation body 1. A waterproof mechanism is provided in the installation groove 5, and modular connection mechanisms are provided at the four corners of the anchor foundation body 1. A cable stabilization mechanism is provided on the cable connection seat 2.

[0026] The waterproof mechanism includes 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 opened around the top of the installation groove 5. A waterproof sealing ring 11 is fixed on the top of the anti-torque disk 6. The waterproof sealing ring 11 corresponds to the upper and lower positions of the sealing groove 10. The waterproof sealing ring 11 is embedded in the sealing groove 10 for sealing. When the anti-torque disk 6 is replaced, the anti-torque disk 6 is embedded in the installation groove 5 so that the waterproof sealing ring 11 is embedded in the sealing groove 10 at the same time. Then the bolt is screwed into the threaded countersunk hole 8 to connect and fix the anchor foundation body 1 and the anti-torque disk 6 to realize rapid replacement and installation of the anti-torque disk 6 and the second skirt 7.

[0027] The modular connection mechanism includes a module connection seat 12, a column 13, a connecting rope 14, a module connection block 15 and a connection slot 16. The module connection seat 12 is fixed at the four corners above the anchor foundation main body 1, and a column 13 is fixed in the middle of the top of the module connection seat 12. A connecting rope 14 is wrapped around the column 13, and a module connection block 15 is fixed at the end of the connecting rope 14. Connection slots 16 are symmetrically opened on the outside of the module connection seat 12. The module connection block 15 is connected to another set of connection slots 16 by snapping into place. The anchor foundation main bodies 1 are connected in series with each other. When facing a large offshore floating photovoltaic platform, the stabilizing effect of a single anchor foundation main body 1 is limited. When the number of anchor foundation main bodies 1 needs to be increased, the module connection block 15 is inserted into the connection slot 16 on the adjacent anchor foundation main body 1 to realize series connection of the adjacent anchor foundation main bodies 1, thereby effectively improving the stability of the anchor foundation main body 1 and facilitating the increase or decrease of the number of anchor foundation main bodies 1 according to the scale of the photovoltaic platform.

[0028] The cable stabilization mechanism includes a connecting cable 17, a protective cover 18 and a stabilizing frame 19. The connecting cables 17 are symmetrically wrapped around the four corners of the cable connecting seat 2. The protective cover 18 is wrapped around the outer side of the connecting cable 17. The stabilizing frame 19 is fixed between the protective cover 18. The stabilizing frame 19 is used to limit the multiple cables to effectively prevent the cables from being entangled.

[0029] When using this new type of gravity-type anchoring foundation for offshore floating photovoltaic wings, the anchoring foundation body is first sunk into the seabed to contact the seabed, and the first and second skirt plates at the bottom are embedded in the shallow soil to enhance the ability to resist lateral loads and torque. During installation, the anti-torque disk is fixed with bolts in the installation groove and waterproof sealing ring is used to achieve waterproofing; the top cable connection seat is connected to the floating platform through multiple connecting cables with a stabilizer frame to prevent the cables from being entangled; when the anchoring system needs to be expanded, multiple basic units are connected in series through modular connection mechanisms at the four corners, and the modular connection blocks at the end of the connecting rope are locked with adjacent basic slots to form a large-scale anchoring network; if the second skirt plate is worn during use, the anti-torque disk can be removed and replaced to achieve the maintainability of key components, thereby continuously ensuring the stability and carrying capacity of the anchoring system.

[0030] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A new gravity anchor foundation for offshore floating photovoltaic wing, characterized by: The invention comprises an anchoring foundation body (1), a cable connecting seat (2), an anti-load torque mechanism, a modular connecting mechanism and a connecting cable (17) stabilizing mechanism, wherein the cable connecting 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, wherein the wing plate (3) is fixedly provided in the middle of the four sides of the anchoring foundation body (1), the first skirt plate (4) is fixedly provided in the middle of the bottom of the wing plate (3), a mounting groove (5) is provided in the middle of the bottom of the anchoring 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), a threaded countersunk hole (8) is provided in the mounting groove (5) and above the anti-torque disc (6), a waterproof mechanism is provided in the mounting groove (5), and 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 opened around the top of the installation groove (5), a waterproof sealing ring (11) is fixed on the top of the anti-torque disk (6), a modular connection mechanism is provided at the four corners of the anchoring foundation body (1), the modular connection mechanism includes a module connection seat (12), a column (13), a connecting rope (14), a module connection block (15) and a connecting slot (16), a module connection seat (12) is fixed at the four corners of the anchoring foundation body (1), a column (13) is fixed in the middle of the top of the module connection seat (12), a connecting rope (14) is wound around the column (13), a module connection block (15) is fixed at the end of the connecting rope (14), a connecting slot (16) is symmetrically opened on the outside of the module connection seat (12), and a cable stabilizing mechanism is provided on the cable connection seat (2).

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

3. The novel gravity anchor foundation for offshore floating photovoltaic wing according to claim 1 is characterized by: The waterproof sealing ring (11) corresponds to the upper and lower positions of the sealing groove (10), and the waterproof sealing ring (11) is embedded in the sealing groove (10) to cooperate with the sealing.

4. The novel gravity anchor foundation for offshore floating photovoltaic wing according to claim 1 is characterized by: The module connection block (15) is snap-fitted and connected to another set of connection slots (16), and the anchoring foundation bodies (1) are connected in series.

5. The novel gravity anchor foundation for offshore floating photovoltaic wing according to claim 1 is characterized by: 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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