Floating wind power anchor chain pre-installation structure

Abstract

The application discloses a floating wind power anchor chain pre-installation structure. The anchor chain is first connected with the bottom surface of a floating foundation at the bottom of the anchor chain. The top of the anchor chain is pulled upward by a chain of a hand-operated hoist, so that the anchor chain is wound from the bottom surface of the floating foundation to the top surface of the floating foundation. At this time, the anchor chain is located at the side edge of the floating foundation. After the floating foundation is lowered to the sea surface, the top of the anchor chain at the side edge of the floating foundation is above the sea surface. The anchor chain on the seabed suction cylinder is salvaged and connected with the top of the anchor chain on the top surface of the floating foundation in a seawater-free environment, so that the problem that it is difficult to operate the floating foundation and connect the anchor chain under water is solved.

Description

Technical Field

[0001] This utility model relates to a pre-installation structure for floating wind turbine anchor chains, belonging to the field of floating offshore wind power construction technology. Background Technology

[0002] Floating offshore wind turbines typically employ mooring systems, generally consisting of an anchor and anchor chain. Before the floating foundation is installed, the mooring system needs to be installed. In traditional mooring systems, the anchor chain is placed on the seabed before reconnection. During the installation of the floating foundation, the entire anchor chain needs to be retrieved and its tip connected to the floating foundation.

[0003] When the anchor chain reconnection point is located below the floating body foundation (see Chinese Patent Publication No. CN219672773U), the underwater operation of reconnecting the floating body foundation and the anchor chain is quite difficult due to the weight of the anchor chain and the swaying of the floating body foundation. Summary of the Invention

[0004] To solve the above-mentioned technical problems, this utility model provides a floating wind power anchor chain pre-installation structure.

[0005] This utility model is achieved through the following technical solution.

[0006] This utility model provides a floating wind turbine anchor chain pre-installation structure, comprising:

[0007] The pre-installed structure of the floating wind turbine anchor chain is shown with the anchor chain positioned on the side of the floating body foundation and the top of the anchor chain being pulled upwards.

[0008] The floating wind turbine anchor chain pre-installation structure includes a floating foundation, anchor chain, and hand-operated hoist.

[0009] The bottom of the anchor chain is connected to the bottom surface of the floating body foundation.

[0010] The bottom of the anchor chain is connected to the bottom surface of the floating body foundation through ear plates and joints.

[0011] The anchor chain is two or more; each of the two anchor chains is connected to a shackle at the top, and the two shackles are connected by a pin.

[0012] A hand-operated hoist is fixedly installed on the floating body base. The hand-operated hoist has a built-in zipper that connects to a pin or shackle ring. The zipper of the hand-operated hoist pulls the top of the anchor chain upwards. The anchor chain wraps around from the bottom surface of the floating body base to the top surface of the floating body base, and the anchor chain is located on the side of the floating body base.

[0013] The floating body base has D-shaped rubber bodies fixed to its sides and bottom. The D-shaped rubber bodies have hollow through holes inside, and binding ropes and anchor chains pass through the hollow through holes of the D-shaped rubber bodies for binding and fixing.

[0014] There are multiple D-shaped rubber bodies, which are distributed at intervals on the side and bottom of the floating body foundation with anchor chains as the guide path. The multiple D-shaped rubber bodies are tied and fixed to the anchor chains at multiple points by binding ropes.

[0015] The beneficial effects of this utility model are as follows: the anchor chain is first connected to the bottom surface of the floating body foundation with its own bottom, and the top of the anchor chain is pulled upward by the chain of the hand-operated hoist, so that the anchor chain is wrapped from the bottom surface of the floating body foundation to the top surface of the floating body foundation. At this time, the anchor chain is on the side of the floating body foundation. After the floating body foundation is lowered to the sea surface, the top of the anchor chain on the side of the floating body foundation is above the sea surface. The anchor chain on the seabed suction cylinder is retrieved and reconnected to the top of the anchor chain in the absence of seawater on the top surface of the floating body foundation. This solves the problem of the difficulty of reconnecting the floating body foundation and the anchor chain when operating underwater. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] In the diagram: 3-Hand chain hoist; 4-Floating body foundation; 11-D-type rubber body; 12-Binding rope; 21-Anchor chain; 22-Shackle ring; 23-Pin shaft. Detailed Implementation

[0018] The technical solution of this utility model is further described below, but the scope of protection is not limited to what is described.

[0019] like Figure 1 As shown.

[0020] This application discloses a floating wind turbine anchor chain pre-installation structure, comprising:

[0021] The floating foundation 4 provides buoyancy for subsequent wind turbine construction and installation. The bottom surface of the floating foundation 4 is fixedly connected to two spaced lugs. The lugs are connected to anchor chains 21 through joints, so that the bottom of the anchor chains 21 is connected to the bottom surface of the floating foundation 4 through the lugs and joints. The top of the anchor chains 21 is used to reconnect with the anchor chains on the seabed suction cylinder in the later stage.

[0022] There are two or more anchor chains 21; each of the two anchor chains 21 is connected to a shackle ring 22 at its top, and the two shackle rings 22 are connected by a pin 23.

[0023] A hand-operated hoist 3 is fixedly installed on the floating foundation 4. The hand-operated hoist 3 has a built-in chain that connects to the pin 23 or the shackle ring 22, allowing the hand-operated hoist 3 to pull the top of the anchor chain 21 upwards. This causes the anchor chain 21 to wrap around from the bottom surface of the floating foundation 4 to the top surface of the floating foundation 4, at which point the anchor chain 21 is located on the side of the floating foundation 4. After the floating foundation 4 is launched into the water, the top of the anchor chain 21 on the side of the floating foundation 4 is above the sea surface.

[0024] The floating body foundation 4 has D-shaped rubber bodies 11 bonded and fixed to its sides and bottom. The D-shaped rubber body 11 has a hollow through hole inside. A binding rope 12 passes through the hollow through hole of the D-shaped rubber body 11 and is bound and fixed to the anchor chain 21.

[0025] There are multiple D-type rubber bodies 11, which are distributed at intervals on the side and bottom of the floating body foundation 4 with the anchor chain 21 as the guide path. The multiple D-type rubber bodies 11 are tied and fixed to the anchor chain 21 at multiple points by binding ropes 12.

[0026] Anchor chain 21 is first connected to the bottom of the floating foundation 4 at its bottom. The top of anchor chain 21 is then pulled upwards using the chain attached to the hand-operated hoist 3, causing anchor chain 21 to wrap around from the bottom of the floating foundation 4 to the top of the floating foundation 4. At this point, anchor chain 21 is located on the side of the floating foundation 4. After the floating foundation 4 is lowered to the sea surface, the top of anchor chain 21 on the side of the floating foundation 4 is above the sea surface. The anchor chain on the seabed suction cylinder is then retrieved and reconnected to the top of anchor chain 21 in the absence of seawater on the top of the floating foundation 4. This solves the problem of the difficulty in reconnecting the floating foundation and anchor chain when operating underwater.

Claims

1. A pre-installation structure for floating wind turbine anchor chains, characterized in that, include: A floating wind power anchor chain pre-installation structure is presented with the anchor chain (21) positioned on the side of the floating foundation (4) and the top of the anchor chain (21) being pulled upwards; The floating wind power anchor chain pre-installation structure includes a floating foundation (4), an anchor chain (21), and a hand-operated hoist (3).

2. The floating wind turbine anchor chain pre-installation structure as described in claim 1, characterized in that: The bottom of the anchor chain (21) is connected to the bottom surface of the floating body foundation (4).

3. The floating wind turbine anchor chain pre-installation structure as described in claim 2, characterized in that: The bottom of the anchor chain (21) is connected to the bottom surface of the floating body foundation (4) through the lug plate and the joint.

4. The floating wind turbine anchor chain pre-installation structure as described in claim 3, characterized in that: There are two or more anchor chains (21); each of the two anchor chains (21) is connected to a shackle ring (22) at the top, and the two shackle rings (22) are connected by a pin (23).

5. The floating wind turbine anchor chain pre-installation structure as described in claim 1, characterized in that: A hand chain hoist (3) is fixedly installed on the floating body foundation (4). The hand chain hoist (3) has its own zipper and is connected to the pin (23) or shackle ring (22). The hand chain hoist (3) pulls the top of the anchor chain (21) upward. The anchor chain (21) wraps from the bottom surface of the floating body foundation (4) to the top surface of the floating body foundation (4). The anchor chain (21) is located on the side of the floating body foundation (4).

6. The floating wind turbine anchor chain pre-installation structure as described in claim 5, characterized in that: The floating body base (4) is fixed with D-shaped rubber bodies (11) on both the side and bottom. The D-shaped rubber body (11) has a hollow through hole inside. A binding rope (12) and an anchor chain (21) pass through the hollow through hole of the D-shaped rubber body (11) for binding and fixing.

7. The floating wind turbine anchor chain pre-installation structure as described in claim 6, characterized in that: There are multiple D-type rubber bodies (11), which are distributed at intervals on the side and bottom of the floating body foundation (4) with the anchor chain (21) as the guide path. The multiple D-type rubber bodies (11) are tied and fixed to the anchor chain (21) at multiple points by binding ropes (12).

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