Floating type offshore wind turbine installation structure with floating crane ship as mooring fixing point

Abstract

The utility model discloses a floating type offshore wind turbine installation structure with a floating crane ship as a mooring fixing point. The floating type offshore wind turbine installation structure comprises the floating crane ship moored and fixed on the sea; the floating type offshore wind power floating bodies are distributed on the side edge of the floating crane ship; the top of the floating type offshore wind power floating body is connected with a main tug through a mooring rope, and the main tug is located right in front of the floating type offshore wind power floating body. A floating type offshore wind power floating body is located on the side edge of the floating crane ship, when the floating type offshore wind power floating body is pushed by sea waves to generate displacement to be close to impact force of the floating crane ship, a main tug can provide opposite force through a mooring rope for counteracting, and therefore the stability of the position of the floating type offshore wind power floating body is guaranteed. The problem that when only one draught fan floating body is located on the side edge of the floating crane ship and the draught fan floating body is pushed by sea waves to generate displacement impact force to be close to the floating crane ship, opposite counteracting cannot be carried out, and the position stability is guaranteed is solved.

Description

Technical Field

[0001] This utility model relates to a floating offshore wind turbine installation structure that uses a floating crane as a mooring point, and belongs to the field of offshore wind turbine installation technology. Background Technology

[0002] Floating wind turbine foundations are typically constructed via onshore assembly. However, with the increasing size of wind turbines, the dimensions of the floating body, the weight of the unit, and its height have also increased, making it difficult for docks and wharves to meet the requirements for large-scale assembly and construction of floating wind turbines. Therefore, the entire floating wind turbine unit needs to be hoisted and installed at sea.

[0003] The current offshore floating wind turbine hoisting technology, as described in Chinese Patent Publication No. CN218594509U, achieves stable position of the wind turbine floats when two wind turbine floats are symmetrically moored on both sides of a semi-submersible hoisting vessel. However, when only one wind turbine float is on the side of the floating crane, the displacement impact force generated by the waves pushes the wind turbine float towards the floating crane, and the opposing forces cannot be offset to ensure positional stability. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a floating offshore wind turbine installation structure that uses a floating crane as a mooring point.

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

[0006] This utility model provides a floating offshore wind turbine installation structure that uses a floating crane as a mooring point, comprising:

[0007] A floating crane vessel moored and fixed at sea;

[0008] Floating offshore wind turbine buoys are distributed on the side of the floating crane vessel;

[0009] The top of the floating offshore wind turbine is connected to a main tugboat via a mooring cable, with the main tugboat positioned directly in front of the floating offshore wind turbine.

[0010] The floating crane has anchor cables at its four corners and in the middle. The anchor cables at the four corners of the floating crane extend outwards for anchoring, and the anchor cables on both sides of the middle of the floating crane cross for anchoring.

[0011] The floating offshore wind turbine buoy is fitted with a shock-absorbing ball between itself and the floating crane vessel.

[0012] The floating offshore wind turbine has two stern sections on either side, which are moored to a floating crane vessel via mooring cables.

[0013] It also includes two auxiliary tugboats, which are positioned at the lower left and lower right of the floating offshore wind turbine buoy. The two auxiliary tugboats are connected to the tail and top of the floating offshore wind turbine buoy via mooring cables.

[0014] The floating offshore wind turbine buoy has a self-elevating wind turbine hoisting platform located at its upper left position.

[0015] The beneficial effects of this utility model are as follows: When a floating offshore wind turbine is located on the side of a floating crane, and the floating offshore wind turbine is pushed by the waves and moves towards the floating crane, the main tugboat can provide a counterforce through the mooring cable to offset the impact force, thereby ensuring the stability of the floating offshore wind turbine's position. This solves the problem that when there is only one wind turbine floating body on the side of the floating crane, and the wind turbine floating body is pushed by the waves and moves towards the floating crane, the opposing forces cannot be offset to ensure positional stability. Attached Figure Description

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

[0017] Figure 2 This is a schematic diagram of the anchoring and mooring system of the floating crane vessel according to this utility model.

[0018] In the diagram: 1-Floating crane vessel; 2-Auxiliary tugboat; 3-Floating offshore wind turbine hull; 32-Stern of the hull; 31-Top of the hull; 6-Bumper ball; 7-Self-elevating wind turbine hoisting platform; 8-Main tugboat. Detailed Implementation

[0019] The technical solution of this utility model is further described below, but the scope of protection is not limited to what is described.

[0020] like Figures 1 to 2 As shown.

[0021] This utility model discloses a floating offshore wind turbine installation structure that uses a floating crane as a mooring point, comprising:

[0022] A floating crane vessel 1 is anchored and secured at sea, with floating offshore wind turbine buoys 3 distributed along its sides. Floating wind turbine buoys 3 and the floating crane vessel 1 are fitted with anti-collision balls 6 to provide cushioning. The stern sections 32 of the floating offshore wind turbine buoys 3 are moored to the floating crane vessel 1 via mooring cables.

[0023] The floating crane 1 has anchor cables at its four corners and midsection. The anchor cables at the four corners extend outwards to anchor on the seabed, and the anchor cables on both sides of the midsection cross and anchor on the seabed, thus securing the floating crane 1 to the seabed through anchoring. Figure 2 As shown.

[0024] It also includes two auxiliary tugboats 2, which are distributed at the lower left and lower right positions of the floating offshore wind power buoy 3. The two auxiliary tugboats 2 are connected to the tail 32 and top 31 of the floating offshore wind power buoy 3 by mooring cables, so that the two auxiliary tugboats 2 can pull the floating offshore wind power buoy 3 to the lower left and lower right to approach the floating crane vessel 1.

[0025] The top 31 of the floating offshore wind turbine buoy 3 is connected to a main tugboat 8 via a mooring cable, with the main tugboat 8 positioned directly in front of the floating offshore wind turbine buoy 3. Since only one floating offshore wind turbine buoy 3 is located on the side of the floating crane vessel 1, when the floating offshore wind turbine buoy 3 is pushed by waves and experiences displacement, causing it to move towards the floating crane vessel 1, the main tugboat 8 can provide a counterforce through the mooring cable to offset this force. This ensures the stability of the floating offshore wind turbine buoy 3's position and solves the problem that when only one wind turbine buoy is located on the side of the floating crane vessel, and the wind turbine buoy experiences displacement and impact from waves moving towards the floating crane vessel, counterforce cannot be offset to ensure positional stability.

[0026] The two auxiliary tugboats 2 can generate downward pull to the left and right to counteract the impact force of the floating offshore wind turbine 3 being pushed away from the floating crane 1 by the waves.

[0027] When the floating offshore wind turbine buoy 3 approaches the floating crane vessel 1, the tail 32 of the floating buoy 3 on the starboard side of the floating offshore wind turbine buoy 3 first slowly approaches the floating crane vessel 1, and then the tail 32 of the floating buoy 3 on the starboard side of the floating offshore wind turbine buoy 3 slowly approaches the floating crane vessel 1.

[0028] The floating offshore wind turbine buoy 3 has a self-elevating wind turbine hoisting platform 7 located at its upper left position. The self-elevating wind turbine hoisting platform 7 can be raised and lowered to perform hoisting operations.

Claims

1. A floating offshore wind turbine installation structure that uses a floating crane vessel as a mooring anchor point, characterized in that, include: A floating crane vessel moored and fixed at sea (1); Floating offshore wind turbine buoys (3) are distributed on the side of the floating crane (1); The top (31) of the floating offshore wind power buoy (3) is connected to a main tugboat (8) via a mooring cable, and the main tugboat (8) is located directly in front of the floating offshore wind power buoy (3).

2. The floating offshore wind turbine installation structure using a floating crane as a mooring point as described in claim 1, characterized in that: The floating crane (1) has anchor cables at its four corners and in the middle. The anchor cables at the four corners of the floating crane (1) are extended outwards for anchoring and mooring. The anchor cables on both sides of the middle of the floating crane (1) are crossed for anchoring and mooring.

3. The floating offshore wind turbine installation structure using a floating crane vessel as a mooring point as described in claim 1, characterized in that: The floating offshore wind turbine buoy (3) and the floating crane vessel (1) are filled with a buffer ball (6).

4. The floating offshore wind turbine installation structure using a floating crane as a mooring point as described in claim 1, characterized in that: The floating offshore wind turbine (3) has two floating tail sections (32) on both sides of its tail. The floating tail sections (32) on both sides are moored to the floating crane (1) by mooring cables.

5. The floating offshore wind turbine installation structure using a floating crane as a mooring point as described in claim 1, characterized in that: It also includes two auxiliary tugboats (2), which are distributed in the lower left and lower right directions of the floating offshore wind power buoy (3). The two auxiliary tugboats (2) are connected to the tail (32) and top (31) of the floating offshore wind power buoy (3) through mooring cables.

6. The floating offshore wind turbine installation structure using a floating crane as a mooring point as described in claim 1, characterized in that: The floating offshore wind turbine buoy (3) has a self-elevating wind turbine hoisting platform (7) located at the upper left position.

Images