CN117508460A - One-anchor multi-chain anchoring system - Google Patents
One-anchor multi-chain anchoring system Download PDFInfo
- Publication number
- CN117508460A CN117508460A CN202311589145.5A CN202311589145A CN117508460A CN 117508460 A CN117508460 A CN 117508460A CN 202311589145 A CN202311589145 A CN 202311589145A CN 117508460 A CN117508460 A CN 117508460A
- Authority
- CN
- China
- Prior art keywords
- mooring
- suction pile
- photovoltaic array
- pile structure
- fixedly connected
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004873 anchoring Methods 0.000 title claims abstract description 27
- 238000007667 floating Methods 0.000 claims abstract description 25
- 230000005611 electricity Effects 0.000 claims abstract description 5
- 238000010276 construction Methods 0.000 abstract description 8
- 238000009434 installation Methods 0.000 abstract description 6
- 238000010248 power generation Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
- B63B21/50—Anchoring arrangements or methods for special vessels, e.g. for floating drilling platforms or dredgers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
- B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
- B63B35/44—Floating buildings, stores, drilling platforms, or workshops, e.g. carrying water-oil separating devices
- B63B2035/4433—Floating structures carrying electric power plants
- B63B2035/4453—Floating structures carrying electric power plants for converting solar energy into electric energy
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Foundations (AREA)
Abstract
The invention relates to the field of ocean engineering foundation equipment and discloses a one-anchor multi-chain anchoring system which comprises a photovoltaic array and a suction pile structure, wherein six mooring lines are arranged outside the photovoltaic array, the other ends of the six mooring lines are fixedly connected with the outside of the suction pile structure, the photovoltaic array comprises four floating body structures, the top of each floating body structure is fixedly connected with a photovoltaic module, and the photovoltaic array is positioned right above the suction pile structure and used for absorbing solar energy to generate electricity; the suction pile structure is located right below the photovoltaic array and used for anchoring at a preset seabed position, so that the position of the photovoltaic array at the sea surface is in a stable state. Through combining a plurality of mooring lines with the suction pile structure, under the premise of guaranteeing the integral safety of the offshore photovoltaic power station, the construction cost of the offshore photovoltaic anchoring system is greatly reduced, the construction is simple, the installation is convenient, and the bearing capacity of an anchoring foundation is improved.
Description
Technical Field
The invention relates to the technical field of ocean engineering foundation equipment, in particular to a one-anchor multi-chain anchoring system.
Background
With the decarbonizing transformation of global energy structures, renewable energy development is rapid. The photovoltaic power generation technology is mature gradually, and the power generation cost is reduced continuously. Photovoltaic power generation has become an important power generation form in renewable energy sources, and is the fourth largest power source worldwide next to coal, natural gas and hydropower. The photovoltaic power generation industry in China is in a high-speed development period, and the integrated photovoltaic grid-connected installed capacity in China reaches 392GW by 2022 months.
As installed capacity continues to increase, the challenges of photovoltaic power generation are also becoming increasingly significant. The development of large centralized photovoltaic power plants takes up a lot of land resources, approximately 1.6 hectares of land per MW installed capacity. The electricity load center is usually concentrated in urban areas with developed economy, and the areas have the characteristics of high population density and scarce land resources, so that the sufficient land resources are difficult to provide for building the photovoltaic power station. In the current situation, offshore photovoltaics have grown and are expected to be a solution to the challenges described above.
However, compared with the land photovoltaic, the offshore photovoltaic faces more severe environmental conditions, and an extremely reliable anchoring system is required to be matched to ensure that the photovoltaic system runs safely in the service period, so that the construction cost of the anchoring system occupies a huge proportion in the total construction and installation cost of the offshore photovoltaic power station, and becomes one of factors for limiting the popularization and application of the offshore photovoltaic in a large range. There is a need for efficient mooring system designs that break through the development bottleneck of offshore photovoltaics.
Aiming at the problems, the invention provides an anchor multi-chain anchoring system, which improves the working efficiency of an anchoring foundation and reduces the overall construction and installation cost of an offshore photovoltaic power station on the premise of not reducing the safety of a photovoltaic system.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a one-anchor multi-chain anchoring system, which solves the problems of high construction cost and large cost proportion of total cost of the anchoring system in the offshore photovoltaic.
In order to achieve the above purpose, the invention is realized by the following technical scheme: the anchoring system comprises a photovoltaic array and a suction pile structure, wherein six mooring lines are arranged outside the photovoltaic array, the other ends of the six mooring lines are fixedly connected with the outside of the suction pile structure, the photovoltaic array comprises four floating body structures, the top of each floating body structure is fixedly connected with a photovoltaic module, and the photovoltaic array is positioned right above the suction pile structure and used for absorbing solar energy to generate electricity;
the suction pile structure is located right below the photovoltaic array and used for anchoring at a preset seabed position, so that the position of the photovoltaic array at the sea surface is in a stable state.
Preferably, the photovoltaic array comprises ten connecting pieces, and two ends of each connecting piece are flexibly connected with the outer side of the floating body structure.
Preferably, the outer sides of the two floating structures are fixedly connected with one ends of the two mooring lines, and the outer sides of the four connecting pieces are fixedly connected with one ends of the four mooring lines.
Preferably, the suction pile structure comprises a cylinder wall and six mooring ear plates, the outer sides of the six mooring ear plates are fixedly connected with the outer sides of the cylinder wall, and the other ends of the mooring wires are fixedly connected with the outer sides of the mooring ear plates.
Preferably, the top of section of thick bamboo wall fixedly connected with top cap, the outside fixedly connected with of top cap is a plurality of lugs.
Preferably, a plurality of anchor chain clamping devices are arranged on the outer side of the top cover.
Preferably, a drainage valve is arranged in the middle of the top end of the top cover, and an exhaust valve is arranged on one side of the middle.
Working principle: firstly, splitting a mooring line into two sections, clamping a section of mooring line which needs to be buried in the soil and is connected with a mooring lug plate through an anchor chain clamping device, enabling the mooring line to be attached to the outer side of a cylinder wall, connecting a hook of a crane with a lifting lug, lifting a suction pile structure through the crane, placing the suction pile structure on a seabed at a preset position, enabling the suction pile structure to fall under the action of self weight and penetrate into the soil, opening an exhaust valve to exhaust gas in the suction pile structure when a worker can sink the suction pile structure, waiting until dead weight of the suction pile structure is completed, forming a closed space in the suction pile at the moment, opening a drainage valve on a top cover, closing the exhaust valve, driving the suction pile structure to sink continuously under the action of pressure difference through forming pressure difference inside and outside the suction pile structure, closing the drainage valve when the suction pile structure is sunk to a preset depth, towing a floating body structure on the sea surface to the preset position, flexibly connecting the floating body structure through a connecting piece to form a photovoltaic array, and connecting one end of the rest section of the line with the photovoltaic array, and connecting the other end of the rest section of the line with the photovoltaic array, and completing the installation of the whole mooring line.
The invention provides a one-anchor multi-chain anchoring system. The beneficial effects are as follows:
1. according to the invention, the plurality of mooring lines are combined with the suction pile structure, so that the construction cost of the offshore photovoltaic anchoring system is greatly reduced on the premise of ensuring the overall safety of the offshore photovoltaic power station, the construction is simple, the installation is convenient, and the bearing capacity of an anchoring foundation is improved.
2. According to the invention, component forces in the horizontal planes of mooring forces provided by the anchor chains symmetrically arranged around the anchoring foundation under the action of wave load can be mutually offset, so that the horizontal load borne by the suction pile foundation is greatly reduced, and meanwhile, the suction pile top cover is added with a counterweight, so that the suction pile top cover, the suction pile side frictional resistance and the structural dead weight can resist the upward load of the offshore photovoltaic system.
3. According to the invention, the tension type anchoring system is selected, so that the occupied seabed area is smaller, the nearby installation of underwater facilities is facilitated, and the response of the upper photovoltaic structure under the action of ocean environmental load is smaller due to the larger restoring rigidity of the anchoring system.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a schematic view of the structure of the mooring line of the present invention;
fig. 3 is a schematic view of a suction pile structure according to the present invention.
1, a photovoltaic array; 11. a floating body structure; 12. a photovoltaic module; 13. a connecting piece; 2. a mooring line; 3. a suction pile structure; 31. a top cover; 32. a cylinder wall; 33. mooring ear plates; 34. an anchor chain clamping device; 35. lifting lugs; 36. a drain valve; 37. an exhaust valve.
Detailed Description
The following description of the embodiments of the present invention will be made more apparent and fully hereinafter with reference to the accompanying drawings, in which some, but not all embodiments of the invention are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Examples:
referring to fig. 1-3, an embodiment of the invention provides a one-anchor multi-chain anchoring system, which comprises a photovoltaic array 1 and a suction pile structure 3, wherein six mooring lines 2 are arranged outside the photovoltaic array 1, the other ends of the six mooring lines 2 are fixedly connected with the outside of the suction pile structure 3, the photovoltaic array 1 comprises four floating body structures 11, the top of each floating body structure 11 is fixedly connected with a photovoltaic module 12, and the photovoltaic array 1 is positioned right above the suction pile structure 3 and is used for absorbing solar energy to generate electricity;
the suction pile structure 3 is located right below the photovoltaic array 1 and is used for anchoring at a preset seabed position, so that the position of the photovoltaic array 1 on the sea surface is in a stable state.
Specifically, the suction pile structure 3 is used as an anchoring foundation, the floating body structure 11 is in a regular hexagon shape, each side length is 25m, the floating body structure 11 adopts a structure type of peripheral floating rings and plastic floating films, the thin films are fully paved on the area surrounded by the interiors of the floating rings, and a pull rope is arranged below the thin films and tied on the floating rings so as to strengthen the integral strength of the structure.
Referring to fig. 1-3, the photovoltaic array 1 includes ten connectors 13, and two ends of each connector 13 are flexibly connected to the outer sides of the floating body structures 11.
Specifically, the connecting piece 13 is made of fiber ropes, penetrates through the connecting part of the floating body structures 11, and is flexibly connected between every two floating body structures 11 through the two connecting pieces 13, and is designed according to 100t pulling force.
Referring to fig. 1-3, the outer sides of the two floating structures 11 are fixedly connected to one ends of the two mooring lines 2, and the outer sides of the four connecting members 13 are fixedly connected to one ends of the four mooring lines 2.
Specifically, when the depth of the water area is 50m, the mooring radius is 63m, tension mooring is selected, the mooring lines 2 can be selected as non-grade anchor chains, according to 100t tension design, two mooring lines 2 are respectively connected with the leftmost end and the rightmost end of the left floating body structure 11 and the right floating body structure 11, and the remaining four mooring lines 2 are respectively connected with the connecting positions of four connecting pieces 13 at the periphery.
Referring to fig. 1-3, the suction pile structure 3 includes a cylinder wall 32 and six mooring lugs 33, the outer sides of the six mooring lugs 33 are fixedly connected with the outer side of the cylinder wall 32, and the other ends of the mooring wires 2 are fixedly connected with the outer sides of the mooring lugs 33.
Specifically, the suction pile structure 3 is a thin-wall steel structure after being treated by anticorrosive paint, the diameter of the cylinder wall 32 is 6m, the height of the cylinder wall 32 is 48m, the thickness of the cylinder wall 32 is 0.02m, six mooring lugs 33 are arranged in the middle of the outer side of the cylinder wall 32 at equal intervals, the mooring lugs 33 are cut by Q355 steel and welded on the cylinder wall 32, the strength of a base material at a welding position is greater than that of the mooring lugs 33, the height of a welding seam is greater than 1/2 of the thickness of the plate, and the welding seam is free of openings and free of slag undercut.
Referring to fig. 1-3, a top cover 31 is fixedly connected to the top of the cylinder wall 32, and a plurality of lifting lugs 35 are fixedly connected to the outer side of the top cover 31.
Specifically, the top cap 31 is made of steel, the wall thickness is 8cm, the thickness of the top cap 31 is determined according to the upward pulling load borne by the whole anchoring system, the side friction resistance of the suction pile structure 3 and the self weight, the top cap 31 has the functions of forming a closed space inside the cylinder wall 32 and increasing the pulling resistance of an anchoring foundation, and the lifting lug 35 is connected with a hook, so that the suction pile structure 3 is conveniently lifted and placed at a preset position.
Referring to fig. 1-3, a plurality of anchor chain holding devices 34 are mounted on the outside of the top cover 31.
In particular, the anchor chain clamping device 34 is used for clamping one section of mooring line 2 submerged in the earth, so that two sections of mooring line 2 are recombined during assembly.
Referring to fig. 1 to 3, a drain valve 36 is installed at the middle of the top end of the top cover 31 and a vent valve 37 is installed at one side of the middle.
Specifically, the exhaust valve 37 is used for exhausting the gas inside the suction pile structure 3 when the suction pile structure 3 naturally sinks, and the drain valve 36 is used for pumping and draining water after the suction pile structure 3 naturally sinks, so that a pressure difference is formed inside the suction pile structure 3 and the suction pile structure further sinks.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides an anchor multi-chain anchoring system, includes photovoltaic array (1) and suction pile structure (3), its characterized in that, the outside of photovoltaic array (1) installs six mooring lines (2), six the other end of mooring lines (2) with the outside fixed connection of suction pile structure (3), photovoltaic array (1) include four body structure (11), the top fixedly connected with photovoltaic module (12) of body structure (11), photovoltaic array (1) are located suction pile structure (3) are used for absorbing solar energy and are used for generating electricity;
the suction pile structure (3) is located under the photovoltaic array (1) and used for being anchored at a preset seabed position, so that the position of the photovoltaic array (1) at the sea surface is in a stable state.
2. A one-anchor multi-chain mooring system according to claim 1, wherein the photovoltaic array (1) comprises ten connectors (13), both ends of the connectors (13) being flexibly connected to the outside of the floating structure (11).
3. A one-anchor multi-chain mooring system according to claim 2, wherein the outer sides of two of said floating structures (11) are fixedly connected to one end of two of said mooring lines (2), and the outer sides of four of said connectors (13) are fixedly connected to one end of four of said mooring lines (2).
4. A one-anchor multi-chain mooring system according to claim 1, wherein the suction pile structure (3) comprises a cylinder wall (32) and six mooring lugs (33), the outer sides of the six mooring lugs (33) are fixedly connected with the outer sides of the cylinder wall (32), and the other ends of the mooring wires (2) are fixedly connected with the outer sides of the mooring lugs (33).
5. A one-anchor multi-chain mooring system according to claim 4 wherein the top of the barrel wall (32) is fixedly connected with a top cover (31), the outside of the top cover (31) is fixedly connected with a plurality of lifting lugs (35).
6. A one-anchor multi-chain mooring system according to claim 5, wherein a plurality of chain gripping means (34) are mounted on the outside of the top cover (31).
7. A one-anchor multi-chain mooring system according to claim 5, wherein the top end of the top cover (31) is provided with a drain valve (36) at the middle and a vent valve (37) at one side of the middle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311589145.5A CN117508460A (en) | 2023-11-24 | 2023-11-24 | One-anchor multi-chain anchoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311589145.5A CN117508460A (en) | 2023-11-24 | 2023-11-24 | One-anchor multi-chain anchoring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117508460A true CN117508460A (en) | 2024-02-06 |
Family
ID=89741747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311589145.5A Pending CN117508460A (en) | 2023-11-24 | 2023-11-24 | One-anchor multi-chain anchoring system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117508460A (en) |
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| WO2011144841A1 (en) * | 2010-05-19 | 2011-11-24 | Cubisystem Sarl | Anchor point for floating structure |
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| CN116161175A (en) * | 2023-03-16 | 2023-05-26 | 天津大学 | Anchoring system for shared foundation |
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2023
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| US20080112759A1 (en) * | 2006-11-10 | 2008-05-15 | Stewart Hardison | Artificial reef anchor structure |
| WO2011144841A1 (en) * | 2010-05-19 | 2011-11-24 | Cubisystem Sarl | Anchor point for floating structure |
| KR20150049172A (en) * | 2013-10-29 | 2015-05-08 | (주)대우건설 | Suction file anchor construction method by vertical pullout at original position |
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