CN212654500U

CN212654500U - Wave-avoiding berthing structure of offshore platform

Info

Publication number: CN212654500U
Application number: CN202020232193.4U
Authority: CN
Inventors: 贾爱庆
Original assignee: Cgn Rudong Offshore Wind Power Generation Co ltd
Current assignee: Cgn Rudong Offshore Wind Power Generation Co ltd
Priority date: 2020-03-02
Filing date: 2020-03-02
Publication date: 2021-03-05
Anticipated expiration: 2030-03-02

Abstract

The utility model discloses a wave-avoiding berthing structure of an offshore platform, wherein the offshore platform is supported by a plurality of foundation piles in a bearing way, the wave-avoiding berthing structure comprises a wave-avoiding net and a climbing device, and the climbing device comprises berthing piles and a crawling ladder; at least two adjacent foundation piles are not provided with wave blocking nets and the corresponding foundation piles are not provided with climbing devices; wave blocking nets are arranged between the other adjacent foundation piles, and the inner side and the outer side of the corresponding foundation pile are respectively provided with a set of climbing device; the wave-preventing net between the foundation piles forms a wave-preventing area for the operation and maintenance ship to go in and out. The utility model discloses utilize platform foundation pile installation to keep off unrestrained net, keep off unrestrained net can reduce the energy of stormy waves to a great extent, no matter which direction's stormy waves, all have suitable weak unrestrained to berth stake and supply fortune dimension ship to berth, make the climbing that fortune dimension personnel can be comparatively safe step on to offshore platform.

Description

Wave-avoiding berthing structure of offshore platform

Technical Field

The utility model relates to a marine wind power trade (and other offshore platforms) marine safety is leaned on berth and is stepped on and take advantage of technical field, concretely relates to offshore platform keeps away unrestrained structure of leaning on berth.

Background

Offshore wind power plant offshore platforms (booster stations or converter stations and living platforms) are large offshore platforms, and production personnel need to be sent to the offshore platforms by operation and maintenance ships in the production process of the wind power plants. The most dangerous link of offshore operation is to climb from a ship to an offshore platform, as the sea is generally provided with stormy waves, the ship can bump and fluctuate under the action of the stormy waves, great safety threats are brought to production personnel climbing from an operation and maintenance ship to the offshore platform, and European offshore wind power plants have the case of using a wave compensation ladder to solve the climbing problem, but the mode has extremely high cost (including the requirement on the ship) and is not suitable for domestic small-sized wind power operation and maintenance ships.

The current mainstream boarding manner in China is shown in figures 1 and 2, when operation and maintenance personnel need to board an offshore platform 1, a ship driver controls the bow of an operation and maintenance ship 4 to berth on a foundation pile I2-1, a foundation pile II 2-2, a foundation pile III 2-3 or a corresponding berthing pile I3-5, a berthing pile II 3-6, a berthing pile III 3-7 or a berthing pile IV 3-8 on the outer side of the foundation pile IV 2-4; because the berthing piles I3-5, the crawling ladder I3-1, the berthing piles I3-6, the crawling ladder I3-2, the berthing piles I3-7, the crawling ladder I3-3, the berthing piles I3-8 and the crawling ladder I3-4 respectively form a set of berthing device, the operation and maintenance personnel can climb to the offshore platform 1 from the corresponding crawling ladder I3-1, the crawling ladder II 3-2, the crawling ladder III 3-3 or the crawling ladder IV 3-4. As can be seen from fig. 2, although four sets of climbing devices in different directions are installed to correspond to the storms in different directions, the vessel 4 is not attacked by the storms, and is easy to lose control, which leads to personnel accidents. For this reason, a new technical solution is needed to solve the above technical problems.

Disclosure of Invention

To the above situation, the utility model provides a wave structure of berthing is kept away to offshore platform.

The utility model adopts the technical proposal that:

a wave-avoiding berthing structure of an offshore platform is supported by a plurality of foundation piles in a loading manner, and comprises a wave-stopping net and a climbing device, wherein the climbing device comprises berthing piles and a climbing ladder; at least two adjacent foundation piles are not provided with wave blocking nets and the corresponding foundation piles are not provided with climbing devices; wave blocking nets are arranged between the other adjacent foundation piles, and the inner side and the outer side of the corresponding foundation pile are respectively provided with a set of climbing device; the wave-preventing net between the foundation piles forms a wave-preventing area for the operation and maintenance ship to go in and out.

Further, foundation piles I, II, III and IV are respectively used.

Furthermore, the direction of the operation and maintenance ship entering and exiting the wave-avoiding area is located in the small-probability wind wave direction.

Furthermore, the highest point of the wave blocking net is larger than or equal to the highest tide plane of the tide, and the lowest point is the lowest tide and then goes downwards plus the wave depth.

Further, the berthing position of the operation and maintenance ship is preferably a berthing pile on the inner side of the foundation pile.

Furthermore, the wave blocking net is formed by interweaving profile steel and thick steel wires.

The utility model has the advantages that:

the utility model discloses utilize platform foundation pile installation to keep off unrestrained net, keep off unrestrained net can reduce the energy of stormy waves to a great extent, no matter which direction's stormy waves, all have suitable weak unrestrained to berth stake and supply fortune dimension ship to berth, make the climbing that fortune dimension personnel can be comparatively safe step on to offshore platform, reduce the accident risk.

Drawings

Fig. 1 is an overall schematic diagram of the prior art.

Fig. 2 is a top view of fig. 1.

Fig. 3 is an overall schematic view of the present invention.

Fig. 4 is a top view of fig. 3.

Wherein: 1. 2-1 offshore platform, 2-2 foundation piles I, 2-2 foundation piles II, 2-3 foundation piles III, 2-4 foundation piles IV, 3 ladder stand, 3(1), berth piles, 3-1 ladder stand I, 3-2 ladder stand II, 3-3 ladder stand III, 3-4 ladder stand IV, 3-5 berth pile I, 3-6 berth pile II, 3-7 berth pile III, 3-8 berth pile IV, 4 berth ship, 5 wave blocking net, 5-1 wave blocking net I, 5-2 wave blocking net II, 5-3 wave blocking net III, 6-1 berth pile V, 6-2 ladder stand V, 6-3 ladder stand VI, 6-3 ladder stand VII, 6-4 ladder stand VIII, 6-5 berth pile, 6-6 and V-6 berth pile VI, 6-7 parts of mooring piles VII, 6-8 parts of mooring piles VIII; F1-F8 which respectively represent wind in the north, northeast, east, southeast, south, southwest, west and northwest directions.

Detailed Description

Four foundation piles are taken as an example.

As shown in fig. 3 and 4, in an offshore platform wave-avoiding berthing structure, an offshore platform 1 is generally a booster station, a converter station or a life base at sea and is supported by foundation piles; the foundation pile comprises a foundation pile I2-1, a foundation pile II 2-2, a foundation pile III 2-3 and a foundation pile IV 2-4.

A wave blocking net I5-1 is arranged between the foundation pile I2-1 and the foundation pile IV 2-4, a wave blocking net II 5-2 is arranged between the foundation pile I2-1 and the foundation pile II 2-2, and a wave blocking net III 5-3 is arranged between the foundation pile III 2-3 and the foundation pile II 2-2; the wave-avoiding area is formed by the wave-blocking net I5-1, the wave-blocking net II 5-2 and the wave-blocking net III 5-3.

The wave blocking net I5-1, the wave blocking net II 5-2 and the wave blocking net III 5-3 are respectively arranged at the west position, the north position and the east position and are formed by combining profile steel and thick steel wires, and the height of the wave blocking net is determined according to the conventional highest tide and the lowest tide of the sea area; meanwhile, because the sea waves are formed because wind power acts on the water surface, the waves only exist at the upper part of the water depth, and do not need to extend to the surface of the sea bed; the highest point of the wave blocking net I5-1, the wave blocking net II 5-2 and the wave blocking net III 5-3 is equal to the highest plane of the large tide level, and the lowest point is the lowest tide and then the wave depth.

The inner side and the outer side of the foundation pile I2-1 and the foundation pile II 2-2 are respectively provided with a set of climbing device, and the climbing devices generally comprise a ladder stand 3 and a mooring pile 3 (1).

The outer side of the foundation pile I2-1 is provided with a berthing pile V6-5 and a ladder stand V6-1, and the inner side is provided with a berthing pile VI 6-6 and a ladder stand VI 6-2; the outer side of the foundation pile II 2-2 is provided with a mooring pile VII 6-7 and a ladder stand VII 6-3, and the inner side is provided with a mooring pile VIII 6-8 and a ladder stand VIII 6-4.

Wind directions F1-F8 refer to wind waves from north, northeast, east, southeast, south, southwest, west and northwest directions, and meanwhile, because the temporary F5 wave direction position in FIG. 4 is a position with a small probability of the wind wave direction in the sea area, no wave blocking net is installed between the foundation piles III 2-3 and the foundation piles IV 2-4, and the wind waves belong to the direction of the operation and maintenance ship 4 entering and exiting the wave avoiding area.

The specific berthing operation method comprises the following steps: as shown in fig. 4, when the wind and wave directions are F1, F2, F3, F7 and F8, the wave-blocking net ii 5-2, the wave-blocking net iii 5-3 and the wave-blocking net i 5-1 can effectively resist the energy of waves in the reduced direction, and the operation and maintenance ship 4 can be selectively anchored on the anchoring piles vi 6-6 or viii 6-8; when the wind and wave directions are F4, F5 and F6 with small probability, the operation and maintenance ship 4 can select the berthing piles V6-5 and the berthing piles VII 6-7 to berth.

Claims

1. A wave-avoiding berthing structure of an offshore platform is characterized by further comprising a wave-stopping net and a climbing device, wherein the climbing device comprises berthing piles and a crawling ladder; at least two adjacent foundation piles are not provided with wave blocking nets and the corresponding foundation piles are not provided with climbing devices; wave blocking nets are arranged between the other adjacent foundation piles, and the inner side and the outer side of the corresponding foundation pile are respectively provided with a set of climbing device; the wave-preventing net between the foundation piles forms a wave-preventing area for the operation and maintenance ship to go in and out.

2. The offshore platform wave-avoiding berthing structure of claim 1, wherein the four foundation piles are foundation piles I, II, III and IV.

3. The offshore platform wave-avoiding berthing structure of claim 1, wherein the direction of the operation and maintenance vessel entering and exiting the wave-avoiding zone is in the direction of the small probability of wind waves.

4. The offshore platform wave-avoiding berthing structure of claim 1, wherein the highest point of the wave-stopping net is greater than or equal to the highest tide plane of the tide, and the lowest point is the lowest tide and then the lower + wave depth.

5. The offshore platform wave-avoiding berthing structure of claim 1, wherein the berthing position of the maintenance vessel is a berthing pile inside a foundation pile.

6. The offshore platform wave-avoiding berthing structure of claim 1, wherein the wave-avoiding net is formed by interweaving steel sections and thick steel wires.