CN220813941U - Prefabrication device for offshore wind power foundation - Google Patents
Prefabrication device for offshore wind power foundation Download PDFInfo
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- CN220813941U CN220813941U CN202322686441.9U CN202322686441U CN220813941U CN 220813941 U CN220813941 U CN 220813941U CN 202322686441 U CN202322686441 U CN 202322686441U CN 220813941 U CN220813941 U CN 220813941U
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- 238000009417 prefabrication Methods 0.000 title claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 42
- 230000005484 gravity Effects 0.000 claims abstract description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 42
- 239000010959 steel Substances 0.000 claims description 42
- 238000007599 discharging Methods 0.000 claims description 2
- 238000005086 pumping Methods 0.000 claims description 2
- 230000003014 reinforcing effect Effects 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 15
- 238000007667 floating Methods 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Abstract
The utility model relates to a prefabrication device for an offshore wind power foundation, and belongs to the technical field of offshore wind power. Comprises a prefabricated platform, a cylindrical foundation and a buoyancy tank; the buoyancy tank is fixed at each angle of the prefabricated platform, the buoyancy tank is provided with a water inlet and a water outlet, the barrel foundation is located in the middle of the upper surface of the prefabricated platform, a water-air pipeline is arranged inside the prefabricated platform and is communicated with the water inlet, when water is added into the buoyancy tank, the prefabricated platform sinks under the action of gravity, when water in the prefabricated platform is discharged by using the air pump, the prefabricated platform floats upwards under the action of buoyancy, and accordingly floating and sinking operation of the prefabricated platform on the sea is achieved. The prefabricated platform and the buoyancy tank can be recycled, and the economical efficiency is good. The prefabrication device realizes that the cylindrical foundation can perform prefabrication operation on the prefabrication platform by adopting the technology of ballasting underwater sinking, inflating and draining floating, so that the problem of occupying site resources is effectively solved, and meanwhile, the construction cost is reduced.
Description
Technical Field
The utility model relates to a prefabrication device for an offshore wind power foundation, and belongs to the technical field of offshore wind power.
Background
In an environment where there is a high global interest in developing low carbon economy, wind power generation has great market potential as a renewable energy source. The offshore wind power has the characteristics of stability of sea wind resources, high power generation, no limitation of land conditions and the like, and rapidly develops in the world in recent years. The difficulty and high cost of wind power foundation construction are one of the biggest limiting conditions for offshore wind farm construction.
Compared with other foundation forms such as single piles, jackets and the like, the offshore wind power cylindrical foundation has a large application prospect in soft foundations such as silt, powdery clay and the like. The advantage installation of the cylindrical foundation is integrated, the construction period is short, and the construction cost is low; however, most of offshore wind power negative pressure cylinders or suction cylinder foundations adopt steel structure cylinders, the cylinders are manufactured in a dock or a large-tonnage wharf, large-scale gantry cranes are required to be arranged, and a large amount of wharf use area is occupied when wharf prefabrication is adopted, so that the foundation construction cost is high, and meanwhile, the safety management difficulty is high. Transportation to a designated machine location after foundation construction is completed requires a special transportation vessel. The requirement on the area of a wharf construction site is high, and the requirement on special construction equipment is high, so that the requirement on the development of a barrel type foundation is a main factor at present.
Disclosure of utility model
In order to solve the problems, the utility model provides the prefabricating device for the offshore wind power foundation, the prefabricating device can perform prefabricating operation on a prefabricating platform by adopting the technology of ballast water sinking, inflation drainage floating, the problem of occupying site resources is effectively solved, and meanwhile, the construction cost is reduced.
In order to achieve the above purpose, the technical scheme of the application is a prefabrication device for an offshore wind power foundation, which comprises a prefabrication platform, a cylindrical foundation and a buoyancy tank; the buoyancy tank is fixed around the prefabricated platform, the buoyancy tank is provided with a water inlet and a water outlet, the cylindrical foundation is located in the middle of the upper surface of the prefabricated platform, a water-air pipeline is arranged inside the prefabricated platform and is communicated with the water inlet, when water is added into the buoyancy tank, the prefabricated platform sinks under the action of gravity, when water in the prefabricated platform is discharged by using the air pump, the prefabricated platform floats upwards under the action of buoyancy, and accordingly floating and sinking operation of the prefabricated platform on the sea is achieved.
The water inlet is used for water inflow through the water suction pump, and the water outlet is used for water pumping and discharging through the submersible pump at the bottom in the buoyancy tank.
Further, the prefabricated platform constitute by a plurality of steel sheets and steel column, the steel sheet surrounds into the cube, the prefabricated platform is inside to be supported by the steel column, be equipped with the steel floor between steel column and the prefabricated platform steel sheet, steel column and steel floor welding are in the same place, ensure that platform panel structural strength satisfies the operation requirement.
Further, the upper surface of the prefabricated platform is welded with a plurality of reinforced ribbed steel plates, so that the structural strength of the prefabricated platform is improved, and the prefabricated platform is ensured not to deform when being stressed.
Further, a plurality of bollards are arranged on the prefabricated platform, the bollards are connected with positioning anchors anchored into the sea through steel wires, the positioning anchors provide pulling force from all directions, the prefabricated platform is stable, and the floating on water is prevented.
Further, the water-gas pipeline is a seamless steel pipe.
By adopting the technical scheme, the utility model can obtain the following technical effects: according to the utility model, the cylindrical foundation construction site is placed on the offshore prefabricating device, so that dependence on a large wharf is reduced, a large gantry crane is not needed in the foundation construction process, and a quick, convenient and economic mode can be realized after construction is finished. In addition, the prefabricated platform and the buoyancy tank can be recycled, and the economical efficiency is good. The prefabrication device realizes that the cylindrical foundation can perform prefabrication operation on the prefabrication platform by adopting the technology of ballasting underwater sinking, inflating and draining floating, so that the problem of occupying site resources is effectively solved, and meanwhile, the construction cost is reduced.
Drawings
FIG. 1 is a schematic diagram of the structure of an embodiment 1 of the present utility model;
FIG. 2 is a schematic diagram of an internal water gas pipeline according to embodiment 1 of the present utility model;
FIG. 3 is a schematic side view of embodiment 1 of the present utility model;
FIG. 4 is a schematic view of a buoyancy tank according to embodiment 1 of the present utility model;
FIG. 5 is a schematic side view of a prefabricated platform according to embodiment 1 of the present utility model;
FIG. 6 is a partial schematic view of FIG. 5;
FIG. 7 is a schematic illustration of an in situ implementation of example 1 of the present utility model.
The serial numbers in the figures illustrate: 1. prefabricating a platform; 2. a barrel-type foundation; 3. a buoyancy tank; 4. a water gas pipeline; 5. a water pump; 6. submersible pump; 7. a steel plate; 8. a steel column; 9. a steel rib plate; 10. reinforcing ribbed steel plates; 11. bollard with cable; 12. positioning anchors; 13. a wire rope; 14. a water inlet; 15. and a water outlet.
Detailed Description
The utility model is described in further detail below with reference to the attached drawings and to specific embodiments: the utility model will be further described by way of examples.
Example 1:
as shown in fig. 1 to 7, the present embodiment provides a prefabrication device for an offshore wind power foundation, comprising a prefabrication platform 1, a cylindrical foundation 2 and a buoyancy tank 3; the buoyancy tank 3 is fixed at each angle of the prefabricated platform 1, the buoyancy tank 3 is provided with a water inlet 14 and a water outlet 15, the barrel foundation 2 is located in the middle of the upper surface of the prefabricated platform 1, the water-gas pipeline 4 is arranged inside the prefabricated platform 1, the water-gas pipeline 4 is communicated with the water inlet 14 through a seamless steel pipe, the water inlet 14 is filled with water through a water suction pump 5, and the water outlet 15 is discharged outside through a submersible pump 6 at the bottom of the buoyancy tank 3. When adding water to the inside of the buoyancy tank 3, the prefabricated platform 1 sinks under the action of gravity, and when the water in the prefabricated platform 1 is discharged by using the air pump, the prefabricated platform 1 floats upwards under the action of buoyancy, so that the prefabricated platform 1 floats upwards and sinks on the sea.
The cylindrical foundation 2 is in a regular hexagon shape.
The prefabricated platform 1 constitute by a plurality of steel sheets 7 and steel column 8, the steel sheet 7 surrounds into the cube, the inside steel column 8 that is supported of prefabricated platform 1 is equipped with steel rib plate 9 between steel column 8 and the steel sheet 7, steel column 8 and steel rib plate 9 weld together, ensure that platform panel structural strength satisfies the operation requirement.
The upper surface of the prefabricated platform 1 is welded with a plurality of reinforced ribbed steel plates 10, the reinforced ribbed steel plates 10 are distributed around the prefabricated platform 1, the structural strength of the prefabricated platform 1 is increased, and the prefabricated platform 1 is ensured not to deform when being stressed.
8 Bollards 11 are arranged on the prefabricated platform 1, the bollards 11 are connected with 4 positioning anchors 12 anchored into the sea through steel wire ropes 13, and the positioning anchors 12 provide pulling force from four directions, so that the prefabricated platform 1 is stable and is prevented from drifting on water.
The length of the prefabricated platform 1 is 62m, the width is 50m, and the height is 1.2m. The buoyancy tank 3 has a length of 7.8m, a width of 6m and a height of 12m. The prefabricated platform 1 can provide buoyancy above 3000 tons, meets the requirement of prefabricated work of the offshore wind power foundation below 3000 tons, effectively solves the problem of occupying site resources, and reduces construction cost.
While the utility model has been described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims.
Claims (6)
1. The prefabrication device for the offshore wind power foundation is characterized by comprising a prefabrication platform (1), a cylindrical foundation (2) and a buoyancy tank (3); the buoyancy tank (3) is fixed on the prefabricated platform (1), the buoyancy tank (3) is provided with a water inlet (14) and a water outlet (15), the barrel-shaped foundation (2) is located in the middle of the upper surface of the prefabricated platform (1), the water-gas pipeline (4) is arranged inside the prefabricated platform (1), the water-gas pipeline (4) is communicated with the water inlet (14), when water is added into the buoyancy tank (3), the prefabricated platform (1) sinks under the action of gravity, and when the air pump is used for discharging water in the prefabricated platform (1), the prefabricated platform (1) floats upwards under the action of buoyancy.
2. Prefabricated device for offshore wind power foundation according to claim 1, characterized in that the water inlet (14) is fed by using a water pump (5) and the water outlet (15) is discharged by pumping water through a submerged pump (6) at the bottom inside the buoyancy tank (3).
3. The prefabrication device for the offshore wind power foundation according to claim 1, wherein the prefabrication platform (1) is composed of a plurality of steel plates (7) and steel columns (8), the steel plates (7) are surrounded to form a cube, the prefabrication platform (1) is internally supported by the steel columns (8), steel rib plates (9) are arranged between the steel columns (8) and the steel plates (7) of the prefabrication platform (1), and the steel plates (7), the steel columns (8) and the steel rib plates (9) are welded together.
4. A prefabricated device for an offshore wind power foundation according to any of the claims 1 or 3, characterized in that the upper surface of the prefabricated platform (1) is also welded with several reinforcing ribbed steel plates (10).
5. Prefabricated device for offshore wind power foundation according to claim 4, characterized in that several bollards (11) are arranged on the prefabricated platform (1).
6. Prefabricated device for offshore wind power foundation according to claim 1, characterized in that the water gas pipeline (4) is a seamless steel pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322686441.9U CN220813941U (en) | 2023-10-08 | 2023-10-08 | Prefabrication device for offshore wind power foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322686441.9U CN220813941U (en) | 2023-10-08 | 2023-10-08 | Prefabrication device for offshore wind power foundation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220813941U true CN220813941U (en) | 2024-04-19 |
Family
ID=90701870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322686441.9U Active CN220813941U (en) | 2023-10-08 | 2023-10-08 | Prefabrication device for offshore wind power foundation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220813941U (en) |
-
2023
- 2023-10-08 CN CN202322686441.9U patent/CN220813941U/en active Active
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