Floating type offshore wind power offshore temporary wharf double-unit integral construction structure

Abstract

The utility model discloses a floating type offshore wind power offshore temporary wharf double-unit integral construction structure. The structure comprises a platform deck; the platform pile leg is inserted into a seabed to be fixed, and the platform deck is installed on the platform pile leg in a lifting mode; platform panels overhanging outwards are fixed to the diagonal positions of the platform deck, and the two platform panels are obliquely distributed at the diagonal positions of the platform deck. The two hubs of the fan are fixedly connected with the flange plates at the opposite angles of the platform deck in a butt joint mode respectively, three blades are hoisted on each hub, one hub provided with the three blades is hoisted to a tower barrel of the floating body foundation, the other hub is in butt joint with the blades transported by a transport ship in a hoisting mode, the installation efficiency of the fan is improved, and the service life of the fan is prolonged. The problem that the fan installation efficiency is low due to the fact that three blades are sequentially hoisted to a hub is solved.

Description

Technical Field

[0001] This utility model relates to a floating offshore wind power nearshore temporary wharf dual-unit integrated construction structure, belonging to the field of offshore wind power construction technology. Background Art

[0002] When using floating foundations for offshore wind power, the triangularly distributed floating foundations can provide three installation points. Existing technology (see Chinese Patent Publication No. CN103145051B) involves first installing the tower and hub, and then sequentially hoisting the three blades onto the hub, resulting in low turbine installation efficiency. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a floating offshore wind power nearshore temporary wharf dual-unit integrated construction structure.

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

[0005] This utility model provides a floating offshore wind power nearshore temporary wharf dual-unit integrated construction structure, including:

[0006] Platform deck;

[0007] Platform legs are inserted into the seabed and fixed in place; the platform deck can be raised and lowered and installed on the platform legs.

[0008] The platform deck is fixed with outwardly cantilevered platform panels at diagonal points, and the two platform panels are diagonally distributed at diagonal points of the platform deck.

[0009] A steel support is fixedly connected to the platform panel; a flange for docking and fixing with the wheel hub flange is fixed on the steel support.

[0010] The bottom of the platform panel is reinforced and fixedly connected to the platform deck by triangular supports; the steel support is reinforced and fixedly connected to the platform panel by reinforcing ribs.

[0011] The platform deck located at the hub is equipped with a crane for lifting operations.

[0012] The platform deck below the crane has a storage tower and a storage cabin in the middle.

[0013] The platform deck has mooring piles distributed along its sides, with floating foundations moored to the mooring piles, and wind turbine towers installed on the floating foundations.

[0014] The platform deck has transport vessels distributed along its sides for transporting the blades.

[0015] The beneficial effects of this utility model are as follows: the two hubs of the wind turbine are respectively connected and fixed to the flanges at opposite corners of the platform deck, and three blades are hoisted on each hub. One hub with three blades installed is hoisted onto the tower of the floating body foundation, and the other hub is hoisted and connected to the blades transported by the transport ship. This improves the wind turbine installation efficiency and solves the problem of low wind turbine installation efficiency when three blades are hoisted onto the hub in sequence. Attached Figure Description

[0016] Figure 1 This is a front view schematic diagram of the wheel hub of this utility model on the flange;

[0017] Figure 2 This is a side view of the wheel hub of this utility model on the flange;

[0018] Figure 3 This is a top view schematic diagram of the three blades of this utility model.

[0019] Figure 4 This is a front view schematic diagram of the wheel hub of this utility model on the platform deck;

[0020] Figure 5 This is a top view of the wheel hub of this utility model on the platform deck;

[0021] In the diagram: 11-Triangular support; 12-Platform panel; 21-Strengthening rib; 22-Steel support; 23-Flange; 31-Blade; 32-Hub; 41-Platform deck; 42-Platform leg; 5-Floating foundation; 6-Mooring pile; 7-Transport ship; 81-Storage tower; 82-Storage engine room; 9-Crane. DETAILED DESCRIPTION

[0022] The technical solution of this utility model is further described below, but the scope of protection is not limited to what is described.

[0023] like Figures 1 to 4 As shown.

[0024] This application discloses a floating offshore wind power nearshore temporary wharf dual-unit integrated construction structure, comprising:

[0025] The platform deck 41 provides an operating space environment. Platform legs 42 are fixed to the bottom of the platform deck 41. The platform legs 42 are inserted into the seabed for fixation. The platform deck 41 can be raised and lowered on the platform legs 42. The platform deck 41 and platform legs 42 can be constructed using existing jack-up oil well platforms.

[0026] Platform panels 12 are fixed at the lower left and upper right diagonal points of the platform deck 41, so that the two platform panels 12 are diagonally distributed at opposite corners of the platform deck 41. The bottom of the platform panels 12 is reinforced and fixedly connected to the platform deck 41 by triangular supports 11. Steel supports 22 are fixedly connected to the platform panels 12, and the steel supports 22 are reinforced and fixedly connected to the platform panels 12 by reinforcing ribs 21. A flange 23 for docking and fixing with the flange of the wheel hub 32 is fixed on the steel supports 22.

[0027] The two hubs 32 of the wind turbine are respectively connected and fixed to flanges 23 at opposite corners of the platform deck 41. Three blades 31 are hoisted onto each hub 32, with the three blades 31 arranged at a 270° angle and cantilevered outwards from the platform panel 12. None of the three blades on each hub 32 extend into the interior space of the platform deck 41. Then, the hub 32 with the three blades 31 installed is hoisted onto the tower of the floating foundation 5. One hub 32 with the three blades 31 is hoisted onto the tower of the floating foundation 5, while the other hub 32 is hoisted and connected to the blades 31 transported from the transport ship 7. This improves the wind turbine installation efficiency and meets the construction environment requirements of the floating foundation 5, which provides three installation points. This solves the problem of low wind turbine installation efficiency when the three blades are hoisted sequentially onto the hub.

[0028] The platform deck 41 located at the hub 32 is equipped with a crane 9 for lifting operations. The middle of the platform deck 41 below the crane 9 has a storage tower 81 and a storage cabin 82. The stored blades 31 can also be placed in the middle of the platform deck 41 below the crane 9.

[0029] The platform deck 41 has mooring piles 6 distributed on its side, and floating foundations 5 are moored on the mooring piles 6. The tower of the wind turbine is installed on the floating foundation 5.

[0030] The platform deck 41 has transport vessels 7 distributed on its sides for transporting the blades 31.

[0031] The present application discloses a construction method for a floating offshore wind power nearshore temporary wharf with two integrated construction units, which includes: installing wheel hubs 32 at diagonally opposite points on the platform deck 41 to present the floating offshore wind power nearshore temporary wharf with two integrated construction units.

[0032] In the marine environment, platform legs 42 are inserted into the seabed and fixed. Platform deck 41 is raised and lowered to the corresponding height by platform legs 42. Mooring piles 6 are distributed on the side of platform deck 41 and fixed to the seabed. Floating body foundation 5 is moored on the mooring piles 6. Transport ship 7 transports blades 31, hubs 32 and towers, etc., on the side of platform deck 41. The tower is hoisted and connected to floating body foundation 5. Two hubs 32 are respectively connected and fixed to flanges 23 at opposite corners of platform deck 41. Three blades 31 are hoisted on each hub 32. Hubs 32 with three blades 31 are hoisted together onto the tower of floating body foundation 5. One hub 32 with three blades 31 is hoisted onto the tower of floating body foundation 5. The other hub 32 is hoisted and connected to the blades 31 transported by transport ship 7.

Claims

1. A floating offshore wind power nearshore temporary wharf dual-unit integrated construction structure, characterized in that, include: Platform deck (41); Platform legs (42) are inserted into the seabed for fixation, and the platform deck (41) can be raised and lowered and installed on the platform legs (42); The platform deck (41) is fixed with outwardly cantilevered platform panels (12) at opposite diagonal points, and the two platform panels (12) are obliquely distributed at opposite diagonal points of the platform deck (41).

2. The floating offshore wind power nearshore temporary wharf dual-unit integrated construction structure as described in claim 1, characterized in that: A steel support (22) is fixedly connected to the platform panel (12); a flange (23) for docking and fixing with the flange of the hub (32) is fixed on the steel support (22).

3. The floating offshore wind power nearshore temporary wharf dual-unit integrated construction structure as described in claim 2, characterized in that: The bottom of the platform panel (12) is reinforced and fixedly connected to the platform deck (41) by a triangular support (11); the steel support (22) is reinforced and fixedly connected to the platform panel (12) by a reinforcing rib (21).

4. The floating offshore wind power nearshore temporary wharf dual-unit integrated construction structure as described in claim 1, characterized in that: The platform deck (41) located at the hub (32) is equipped with a crane (9) for lifting operations.

5. The floating offshore wind power nearshore temporary wharf dual-unit integrated construction structure as described in claim 4, characterized in that: The platform deck (41) below the crane (9) has a storage tower (81) and a storage cabin (82) in the middle.

6. The floating offshore wind power nearshore temporary wharf dual-unit integrated construction structure as described in claim 5, characterized in that: The platform deck (41) has mooring piles (6) distributed on its side, and a floating body foundation (5) is moored on the mooring piles (6). The tower of the wind turbine is installed on the floating body foundation (5).

7. The floating offshore wind power nearshore temporary wharf dual-unit integrated construction structure as described in claim 6, characterized in that: The platform deck (41) has transport vessels (7) distributed on its sides for transporting the blades (31).

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