Construction method of floating type offshore wind power offshore fixed wharf double-unit integral construction structure

Abstract

The invention discloses a construction method of a floating type offshore wind power offshore fixed wharf double-unit integral construction structure. The construction method comprises the step of constructing the floating type offshore wind power offshore fixed wharf double-unit integral construction structure in which a transportation barge is in elastic buffering contact with a hoisting platform. The floating type offshore wind power offshore fixed wharf double-unit integral construction structure comprises a hoisting platform; and an anti-collision facility with an elastic buffering function is fixedly mounted on the outer side of the hoisting platform. Blades are transported to the side edge of the hoisting platform through the transportation barge, the transportation barge makes elastic buffering contact with an anti-collision facility on the hoisting platform, then hard contact is avoided, and the problem that the transportation barge is subjected to sea wave hard impact on the offshore hoisting platform on the sea is solved.

Description

Technical Field

[0001] The invention relates to a construction method for a floating offshore wind power offshore fixed dock double-unit integrated construction structure, belonging to the technical field of offshore wind power construction. Background Art

[0002] During offshore wind turbine installation, if the onshore dock does not have the lifting load capacity, the blades need to be transported to the offshore lifting platform by transport barges for lifting and splicing with the hub (see Chinese patent publication number CN221030047U), and then the hub with the blades installed is lifted together to the tower mountain of the floating foundation.

[0003] Due to the influence of the waves at sea, when the transport barge approaches the offshore lifting platform, there is a problem that the transport barge hits the offshore lifting platform hard. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a construction method for a floating offshore wind power offshore fixed dock dual-unit integrated construction structure.

[0005] The present invention is achieved through the following technical solutions.

[0006] The invention provides a construction method for a floating offshore wind power offshore fixed dock dual-unit integrated construction structure, comprising: constructing a floating offshore wind power offshore fixed dock dual-unit integrated construction structure with elastic buffering contact between a transport barge and a hoisting platform.

[0007] The floating offshore wind power offshore fixed dock dual-unit integrated construction structure includes:

[0008] Lifting platform;

[0009] Anti-collision facilities that serve as elastic buffers are fixedly installed on the outside of the lifting platform.

[0010] The hoisting platform is composed of a platform deck and platform legs. The inner sides of the platform legs are fixedly reinforced and connected by internal diagonal braces, and anti-collision facilities that serve as elastic buffers are fixedly installed on the outer sides of the platform legs.

[0011] Platform panels are fixed at the diagonally opposite corners of the platform deck, and the platform panels are suspended to the sides of the platform deck; the top surfaces of the two diagonally opposite platform panels are each provided with an impeller assembly device, and a combined impeller is installed on the impeller assembly device.

[0012] The bottom of the platform panel is fixed on the platform deck through a plurality of triangular supports distributed at intervals; the combined impeller comprises a hub and three blades installed on the hub.

[0013] The impeller assembly device comprises a steel support fixed on the top surface of the platform panel, the steel support is reinforced and fixedly connected with the platform panel through reinforcing ribs; a flange plate that is butted with the hub flange interface is fixed on the steel support.

[0014] A crane is installed on the platform deck corresponding to two obliquely opposite platform panels.

[0015] Transport barges for transporting blades are distributed on the side of the hoisting platform, and the transport barges are in elastic buffer contact with the anti-collision facilities of the hoisting platform; mooring piles are arranged on the side of the hoisting platform, and a floating foundation is moored on the mooring piles.

[0016] The beneficial effect of the present invention is that the blades are transported to the side of the lifting platform by the transport barge, and the transport barge is in elastic buffering contact with the anti-collision facilities on the lifting platform, thereby avoiding hard contact, and solving the problem of the transport barge being hard impacted by waves on the offshore lifting platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the main view of the expansion platform, the impeller assembly device, and the distribution of the combined impellers of the present invention;

[0018] Figure 2 It is a side view schematic diagram of the expansion platform, impeller assembly device, and combined impeller distribution of the present invention;

[0019] Figure 3 It is a top view schematic diagram of the hoisting platform of the present invention;

[0020] Figure 4 It is a top view schematic diagram of the crane of the present invention on the hoisting platform;

[0021] Figure 5 It is a schematic diagram of the main view of the crane of the present invention on the hoisting platform;

[0022] Figure 6 It is a side view schematic diagram of the crane of the present invention on the hoisting platform;

[0023] In the figure: 1- expansion platform; 11- triangular support; 12- platform panel; 2- impeller assembly; 21- reinforcing ribs; 22- steel support; 23- flange; 3- combined impeller; 31- blades; 32- hub; 4- hoisting platform; 41- platform deck; 42- platform pile legs; 43- anti-collision facilities; 44- internal diagonal bracing; 5- floating foundation; 6- mooring piles; 7- transport barge; 81- storage tower; 82- storage engine room; 9- crane. DETAILED DESCRIPTION

[0024] The technical solution of the present invention is further described below, but the scope of protection claimed is not limited to the description.

[0025] like Figures 1 to 6 shown.

[0026] The present application discloses a floating offshore wind power offshore fixed dock dual-unit integrated construction structure, comprising:

[0027] The hoisting platform 4 is composed of a platform deck 41 and platform legs 42. The platform legs 42 are fixedly connected to the seabed bearing layer. The inner sides of the platform legs 42 are fixedly reinforced by internal diagonal braces 44. The outer sides of the platform legs 42 are fixedly installed with anti-collision facilities 43 that serve as elastic buffers. The anti-collision facilities 43 can be composed of elastic rubber plates or the like.

[0028] A platform panel 12 is fixed at the diagonally opposite corner of the platform deck 41, and the platform panel 12 is suspended and extended to the side of the platform deck 41. The bottom of the platform panel 12 is fixed to the platform deck 41 through a plurality of spaced triangular supports 11 for reinforced support; the middle of the triangular support 11 has a hollow through hole for sea breeze to pass through. The triangular support 11 and the platform panel 12 constitute an expansion platform 1.

[0029] The top surfaces of the two obliquely opposite platform panels 12 are each provided with an impeller assembly 2, on which a combined impeller 3 is mounted, and the combined impeller 3 comprises a hub 32 and three blades 31 mounted on the hub 32. The three blades 31 occupy a 270° plane on the outwardly cantilevered platform panel 12, avoiding occupying the middle space of the platform deck 41.

[0030] The impeller assembly device 2 includes a steel support 22 fixed on the top surface of the platform panel 12, and the steel support 22 is reinforced and fixedly connected to the platform panel 12 through reinforcing ribs 21; a flange plate 23 is fixed on the steel support 22 to connect with the flange interface of the hub 32.

[0031] A crane 9 is installed on the platform deck 41 corresponding to the two obliquely opposite platform panels 12 , and a storage tower 81 and a storage cabin 82 are placed in the middle of the platform deck 41 below the crane 9 .

[0032] A transport barge 7 for transporting blades 31 is distributed on the side of the hoisting platform 4, and the transport barge 7 elastically buffers and contacts the anti-collision facility 43 of the hoisting platform 4; a mooring pile 6 is provided on the side of the hoisting platform 4, and a floating foundation 5 is moored on the mooring pile 6. A wind turbine tower is installed on the floating foundation 5, and a crane 9 can hoist the combined impeller 3 to the top of the wind turbine tower of the floating foundation 5 for installation.

[0033] The blades 31 are transported to the side of the lifting platform 4 by the transport barge 7, and the transport barge 7 elastically buffers the anti-collision device 43 on the lifting platform 4, thereby avoiding hard contact and solving the problem of the transport barge being hard impacted by waves on the offshore lifting platform.

[0034] The present application discloses a construction method for a floating offshore wind power offshore fixed dock dual-unit integrated construction structure, comprising:

[0035] S1: A fixed hoisting platform 4 is constructed in the offshore area with a water depth of 20 to 30 m, with the platform pile legs 42 extending into the seabed bearing layer and the platform deck 41 at a certain height above the water surface.

[0036] S2: New structures are added at the diagonally opposite corners of the hoisting platform 4, which are effectively combined with the expansion platform 1 and the impeller assembly device 2, and two sets of cranes 9 are added to the hoisting platform 4 to ensure that the cranes 9 on the hoisting platform 4 can cover the work of two sets of impeller assemblies.

[0037] S3: mooring piles 6 are driven on both sides of the lifting platform 4, and both sides of the lifting platform 4 are used to dock the transport barge 7. The transport barge 7 is in elastic buffering contact with the anti-collision facilities 43 on the lifting platform 4, so as to realize the construction of a floating offshore wind power offshore fixed dock dual-unit complete construction structure with elastic buffering contact between the transport barge 7 and the lifting platform 4.

[0038] S4: The floating foundation 5 of the floating wind turbine is towed and moored to the mooring pile 6.

[0039] S5: The crane 9 completes the hoisting of the combined impeller 3. The two cranes 9 respectively hoist the wind turbine tower, the nacelle, and the impeller in sequence to ensure that there is no interference between the blades and the combined impeller 3.

[0040] S6: After the lifting is completed, release the corresponding constraints, tie it up, and tow it to the designed location of the wind farm by a tugboat.

Claims

1. A construction method for a floating offshore wind power offshore fixed dock dual-unit integrated construction structure, characterized in that: include: A floating offshore wind power offshore fixed dock dual-unit integrated construction structure is constructed in which a transport barge (7) and a lifting platform (4) are in elastic buffer contact.

2. The construction method of the floating offshore wind power offshore fixed dock dual-unit integrated construction structure according to claim 1, characterized in that: The floating offshore wind power offshore fixed dock dual-unit integrated construction structure includes: Lifting platform (4); An anti-collision facility (43) for elastic buffering is fixedly installed on the outer side of the hoisting platform (4).

3. The construction method of the floating offshore wind power offshore fixed dock dual-unit integrated construction structure according to claim 2, characterized in that: The hoisting platform (4) is composed of a platform deck (41) and platform legs (42). The inner sides of the platform legs (42) are fixedly reinforced and connected via internal diagonal braces (44). Anti-collision facilities (43) that function as elastic buffers are fixedly installed on the outer sides of the platform legs (42).

4. The construction method of the floating offshore wind power offshore fixed dock dual-unit integrated construction structure according to claim 3, characterized in that: A platform panel (12) is fixed at the diagonally opposite corner of the platform deck (41), and the platform panel (12) protrudes outward from the side of the platform deck (41); the top surfaces of the two diagonally opposite platform panels (12) are each provided with an impeller assembly device (2), and a combined impeller (3) is installed on the impeller assembly device (2).

5. The construction method of the floating offshore wind power offshore fixed dock dual-unit integrated construction structure according to claim 4, characterized in that: The bottom of the platform panel (12) is fixed on the platform deck (41) via a plurality of triangular supports (11) distributed at intervals; the combined impeller (3) comprises a hub (32) and three blades (31) mounted on the hub (32).

6. The construction method of the floating offshore wind power offshore fixed dock dual-unit integrated construction structure according to claim 4, characterized in that: The impeller assembly device (2) comprises a steel support (22) fixed on the top surface of the platform panel (12), the steel support (22) being reinforced and fixedly connected to the platform panel (12) via reinforcing ribs (21); a flange plate (23) is fixed on the steel support (22) for docking with the flange interface of the hub (32).

7. The construction method of the floating offshore wind power offshore fixed dock dual-unit integrated construction structure according to claim 4, characterized in that: A crane (9) is installed on the platform deck (41) corresponding to two obliquely opposite platform panels (12).

8. The construction method of the floating offshore wind power offshore fixed dock dual-unit integrated construction structure according to claim 2, characterized in that: A transport barge (7) for transporting blades (31) is distributed on the side of the lifting platform (4), and the transport barge (7) elastically buffers and contacts the anti-collision facility (43) of the lifting platform (4); a mooring pile (6) is provided on the side of the lifting platform (4), and a floating foundation (5) is moored on the mooring pile (6).

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