Anchors and anchor chain launching structure

Abstract

The application discloses an anchor and anchor chain hoisting launching structure, the anchor is connected with the lifting hook through the second steel wire rope and the first steel wire rope, the anchor chain connected with the anchor side edge is connected with the mooring column, the third steel wire rope lifts the middle part of the anchor chain, the anchor is lifted by the hoisting ship, when the hoisting ship moves to the sea anchor installation point, the lifting hook lifts the anchor to a sufficient height, then slowly moves to the outside of the ship side of the hoisting ship and above the anchor installation position, then slowly lowers the lifting hook to make the anchor install in water, the direction and the perpendicularity of the anchor are controlled by two cable wind ropes during the period, and the problem that the anchor cannot be controlled in the direction and the perpendicularity when the anchor swings is solved.

Description

Technical Field

[0001] This utility model relates to an anchor and anchor chain hoisting and launching structure, belonging to the field of marine wind construction technology. Background Technology

[0002] The mooring system for floating offshore wind turbine foundations typically employs an anchor + anchor chain combination structure. When the anchor head or suction anchor tube is hoisted into the water (see Chinese Patent Publication No. CN117799797A), the anchor chain pre-connected to the anchor is relatively long, which can easily cause the anchor to swing during the hoisting process. This makes it impossible to control the direction and verticality of the anchor formed by the suction anchor tube. Summary of the Invention

[0003] To solve the above-mentioned technical problems, this utility model provides an anchor and anchor chain hoisting and launching structure.

[0004] This utility model is achieved through the following technical solution.

[0005] This utility model provides an anchor and anchor chain lifting and launching structure, comprising: Anchors with lugs on the top surface.

[0006] The anchor has four lugs at the top, spaced circumferentially.

[0007] The lifting lug is connected to a second steel wire rope, the two ends of which are connected to two symmetrical lifting lugs on the top surface of the anchor; the other two lifting lugs are connected to guy ropes.

[0008] The second wire rope is connected to the first wire rope in the middle; it also includes a lifting vessel with a hook; the first wire rope is connected to the top of the hook.

[0009] The anchor has an anchor shackle on its side, which is connected to an anchor chain. A tensioner is installed in the middle of the anchor chain to tension the anchor chain.

[0010] The lifting vessel has a mooring bollard, and the anchor chain is connected to the mooring bollard. The middle of the anchor chain is connected to the hook via a third steel wire rope.

[0011] The beneficial effects of this utility model are as follows: the anchor is connected to the hook via the second and first wire ropes, the anchor chain connected to the side of the anchor is connected to the mooring bollard, the third wire rope lifts the middle of the anchor chain, the lifting vessel lifts the anchor, and when the lifting vessel moves to the anchor installation point at sea, the hook lifts the anchor to a sufficient height, and then slowly moves it to the outside of the lifting vessel's side and directly above the anchor installation position, and then slowly lowers the hook to allow the anchor to enter the water for installation. During this process, two guy ropes are used to assist in controlling the direction and verticality of the anchor, which solves the problem of the anchor swinging and the inability to control its direction and verticality. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the distribution structure of this utility model. Figure 1 ; Figure 2 This is a schematic diagram of the distribution structure of this utility model. Figure 2 ; Figure 3 This is a schematic diagram of the distribution structure of the anchor, guy rope, lifting lug, and anchor shackle of this utility model; In the diagram: 1-Anchor; 11-Anchor shackle; 12-Lifting lug; 21-First wire rope; 22-Second wire rope; 23-Third wire rope; 4-Guide rope; 5-Lifting vessel; 51-Hook. Detailed Implementation

[0013] The technical solution of this utility model is further described below, but the scope of protection is not limited to what is described.

[0014] like Figures 1 to 3 As shown.

[0015] This application discloses an anchor and anchor chain lifting and launching structure, comprising: Anchor 1 is formed by suction anchor tubes that are adsorbed onto the seabed by vacuum negative pressure.

[0016] The anchor 1 shown has a second steel wire rope 22 connected to the lifting lug 12 on the top surface of the anchor 1. The two ends of the second steel wire rope 22 are connected to two symmetrical lifting lugs 12 on the top surface of the anchor 1.

[0017] The second wire rope 22 is connected to the first wire rope 21 in the middle, and the first wire rope 21 is connected to the top of the hook 51; it also includes a lifting vessel 5, and the hook 51 is a component on the lifting vessel 5 (this is prior art).

[0018] The anchor 1 has an anchor shackle 11 on its side, and the anchor shackle 11 is connected to the anchor chain 31. A tensioner 32 is installed in the middle of the anchor chain 31, and the tensioner 32 tensions the anchor chain 31. The lifting vessel 5 has a mooring bollard 6, and the anchor chain 31 is connected to the mooring bollard 6. The middle of the anchor chain 31 is connected to the hook 51 through a third wire rope 23.

[0019] The top lifting lugs 12 of the anchor 1 are four circumferentially spaced. Two lifting lugs 12 are connected to the two ends of the second steel wire rope 22, and the other two lifting lugs 12 are connected to guy ropes 4. The two guy ropes 4 control the swing direction and verticality of the anchor 1 during the hoisting process, which solves the problem that the direction and verticality of the anchor cannot be controlled when it swings.

[0020] Working principle: During use, anchor 1 is connected to hook 51 via second wire rope 22 and first wire rope 21. Anchor chain 31, connected to the side of anchor 1, is connected to mooring bollard 6. Third wire rope 23 lifts the middle of anchor chain 31. Lifting vessel 5 lifts anchor 1. When lifting vessel 5 moves to the anchor 1 installation point at sea, hook 51 lifts anchor 1 to a sufficient height. Then, it is slowly moved to the outside of lifting vessel 5 and directly above the anchor 1 installation position. Then, hook 51 is slowly lowered to allow anchor 1 to enter the water for installation. During this process, two guy ropes 4 are used to assist in controlling the direction and verticality of anchor 1. After anchor 1 has penetrated the seabed and is installed, the connection between anchor chain 31 and mooring bollard 6 is disconnected, and anchor chain 31 is hoisted to the seabed for temporary storage.

Claims

1. An anchor and anchor chain hoisting and launching structure, characterized in that, include: Anchor with lugs on the top surface (1); The anchor (1) has four lugs (12) at the top, which are distributed circumferentially. The lifting lug (12) is connected to a second steel wire rope (22), and the two ends of the second steel wire rope (22) are connected to two symmetrical lifting lugs (12) on the top surface of the anchor (1); the other two lifting lugs (12) are connected to guy ropes (4); The second wire rope (22) is connected to the first wire rope (21) in the middle; it also includes a lifting vessel (5) with a hook (51); the first wire rope (21) is connected to the top of the hook (51); The anchor (1) has an anchor shackle (11) on its side, and the anchor shackle (11) is connected to an anchor chain (31). A tensioner (32) is installed in the middle of the anchor chain (31), and the tensioner (32) tensions the anchor chain (31). The lifting vessel (5) has a mooring bollard (6), and an anchor chain (31) is connected to the mooring bollard (6). The middle part of the anchor chain (31) is connected to the hook (51) through a third wire rope (23).

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