Construction method of suction cylinder for floating offshore wind floating body foundation construction

Abstract

The application discloses a construction method of a suction cylinder structure for floating offshore wind power floating foundation construction, and comprises the following steps: corresponding to the wall plate top of the floating foundation and the suction cylinder structure for floating offshore wind power floating foundation construction, water is injected into the floating foundation to make the floating foundation bottom surface elastically deform and tightly contact the rubber structure layer on the wall plate top; the water in the wall plate is pumped out through the communicating pipe and the pressure control valve, negative pressure is generated in the wall plate, and the rubber structure layer outside the wall plate top edge is tightly accumulated inside the wall plate top edge. The floating foundation bottom surface elastically deforms and tightly contacts the rubber structure layer on the wall plate top, the elastic deformation of the rubber structure layer supplements the concave-convex butt joint of the wall plate top and the floating foundation bottom surface corroded by seawater, and the problem that the concave-convex butt joint of the wall plate top edge and the floating foundation bottom surface corroded by seawater cannot tightly contact is solved.

Description

TECHNICAL FIELD

[0001] The application relates to a construction method of a suction cylinder for floating offshore wind power floating foundation construction, and belongs to the technical field of offshore wind power construction. BACKGROUND

[0002] The tower cylinder of offshore wind power needs to be supported on a jacket foundation through a floating foundation, and the stable adsorption of the floating foundation and the jacket foundation needs to be ensured.

[0003] In the existing offshore wind power technology (see Chinese patent publication No. CN118148175A), although negative pressure is generated in the suction cylinder for adsorption, since the floating foundation and the suction cylinder are both made of metal materials, corrosion occurs in seawater, and the top edge of the suction cylinder and the bottom surface of the floating foundation cannot be in close contact due to the concave-convex problem. SUMMARY

[0004] To solve the above technical problems, the application provides a construction method of a suction cylinder for floating offshore wind power floating foundation construction.

[0005] The application is achieved by the following technical solutions.

[0006] The application provides a construction method of a suction cylinder structure for floating offshore wind power floating foundation construction, which comprises the following steps:

[0007] Water is injected into the floating foundation corresponding to the top of the wall plate of the suction cylinder structure for floating offshore wind power floating foundation construction, and the floating foundation is lowered, so that the bottom surface of the floating foundation is in close contact with the elastic deformation of the rubber structure layer at the top of the wall plate; a water pump draws water in the wall plate through a communication pipe and a pressure control valve, negative pressure is generated in the wall plate, and the rubber structure layer outside the top edge of the wall plate is accumulated tightly inside the top edge of the wall plate.

[0008] The suction cylinder structure for floating offshore wind power floating foundation construction comprises the following:

[0009] A bottom plate is fixedly and hermetically connected with a wall plate around the periphery, and the wall plate and the bottom plate form a downwardly recessed cylinder structure;

[0010] The wall plate comprises a rubber structure layer made of elastic rubber;

[0011] The wall plate is fixedly and hermetically connected with a communication pipe, the communication pipe is hermetically installed with a pressure control valve, and the pressure control valve is communicated with a water pump.

[0012] A supporting circular pipe in the form of a ring is fixedly and hermetically arranged at the top of the wall plate, and the supporting circular pipe is wrapped with a rubber structure layer outside.

[0013] Further comprising a jacket fixedly arranged at the bottom of the seabed, and the jacket is fixedly arranged with the bottom plate.

[0014] The wall plate has a ring-shaped rib plate inside, and a reinforcing ring is fixedly connected to the ring-shaped rib plate.

[0015] The beneficial effects of the present application are that the rubber structure layer on the top of the wall plate and the bottom of the floating foundation are in close contact through elastic deformation, and the elastic deformation of the rubber structure layer supplements the concave-convex joint of the top of the wall plate and the bottom of the floating foundation corroded by seawater, thereby solving the problem that the top edge of the suction cylinder and the bottom of the floating foundation cannot be in close contact due to corrosion in seawater. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 is a structure schematic diagram when the present application is used;

[0017] Fig. 2 is a structure schematic diagram of the present application;

[0018] In the figure: 11 - water pump; 12 - communication pipe; 13 - pressure control valve; 14 - wall plate; 15 - bottom plate; 16 - ring-shaped rib plate; 17 - reinforcing ring; 18 - support circular pipe; 19 - rubber structure layer; 2 - guide pipe support; 3 - floating foundation. DETAILED DESCRIPTION

[0019] The technical solutions of the present application are further described below, but the scope of protection is not limited to the description.

[0020] As Figs. 1-2 shown.

[0021] The application is a floating offshore wind power floating foundation construction suction cylinder structure, comprising:

[0022] A bottom plate 15 is used to be fixed on the top of the guide pipe support 2, and the periphery of the bottom plate 15 is fixedly connected with a wall plate 14, and the wall plate 14 and the bottom plate 15 are both circular arc shapes. The wall plate 14 and the bottom plate 15 form a downwardly recessed cylinder structure.

[0023] A circular ring-shaped support circular pipe 18 is fixedly connected to the top of the wall plate 14, and the support circular pipe 18 is wrapped with an elastic rubber to form a rubber structure layer 19, and the top surface of the rubber structure layer 19 is a plane.

[0024] The wall plate 14 has a ring-shaped rib plate 16 inside, and a reinforcing ring 17 is fixedly connected to the ring-shaped rib plate 16, and the reinforcing ring 17 is reinforced when the wall plate 14 is subjected to inward extrusion force and is pre-deformed. The ring-shaped rib plate 16 and the reinforcing ring 17 are below the rubber structure layer 19, and can be caught by the ring-shaped rib plate 16 and the reinforcing ring 17 when the rubber structure layer 19 is elastically deformed by contact and extrusion with the floating foundation 3.

[0025] The wall plate 14 is fixedly connected with a communication pipe 12, the communication pipe 12 is fixedly installed with a pressure control valve 13, the pressure control valve 13 is communicated with a water pump 11, and the water pump 11 is placed on a hoisting platform and is not underwater. The guide pipe frame 2 is inserted into the seabed.

[0026] The rubber structure layer 19 on the top of the wall plate 14 is elastically deformed to be in close contact with the bottom surface of the floating foundation 3, and the rubber structure layer 19 elastically deforms to supplement the concave-convex joint of the top of the wall plate 14 and the bottom surface of the floating foundation 3 corroded by seawater, so that the problem that the concave-convex joint of the top edge of the suction cylinder and the bottom surface of the floating foundation cannot be in close contact due to corrosion in seawater is solved.

[0027] The water in the cylinder structure formed by the wall plate 14 and the bottom plate 15 is pumped out by the water pump 11, a negative pressure is generated in the wall plate 14, the bottom surface of the floating foundation 3 is more tightly adsorbed on the top edge of the wall plate 14, and when the negative pressure is generated in the wall plate 14, the rubber structure layer 19 outside the top edge of the wall plate 14 is accumulated inside the top edge of the wall plate 19 under the action of the negative pressure, so that the tightness of the contact between the bottom surface of the floating foundation 3 and the top of the wall plate 14 is further ensured.

[0028] The construction method of the floating offshore wind power floating foundation construction suction cylinder structure of the application comprises the following steps:

[0029] The rubber structure layer 19 on the top of the wall plate 14 is elastically deformed to be in close contact with the bottom surface of the floating foundation 3, and the rubber structure layer 19 elastically deforms to supplement the concave-convex joint of the top of the wall plate 14 and the bottom surface of the floating foundation 3 corroded by seawater, so that the problem that the concave-convex joint of the top edge of the suction cylinder and the bottom surface of the floating foundation cannot be in close contact due to corrosion in seawater is solved.

Claims

1. A construction method for a suction cylinder used in the construction of a floating offshore wind turbine foundation, characterized in that, The suction cylinder includes: The base plate (15) is sealed and fixedly connected with the wall panel (14) around the perimeter of the base plate (15). The wall panel (14) and the base plate (15) form a downwardly recessed cylindrical structure. The wall panel (14) has a rubber structural layer (19) made of elastic rubber; The top of the wall panel (14) is sealed with a circular support tube (18), and the support tube (18) is wrapped with a rubber structural layer (19). The construction method includes: The top of the floating foundation (3) is aligned with the top of the wall panel (14) of the suction cylinder structure for the construction of the floating offshore wind power floating foundation. Water is injected into the floating foundation (3) to lower it, so that the bottom surface of the floating foundation (3) and the rubber structure layer (19) on the top of the wall panel (14) are in close contact due to elastic deformation. The water pump (11) extracts the water inside the wall panel (14) through the connecting pipe (12) and the pressure control valve (13). A negative pressure is generated inside the wall panel (14), and the rubber structure layer (19) on the outside of the top edge of the wall panel (14) is tightly packed towards the inside of the top edge of the wall panel (14).

2. The construction method of the suction cylinder for the construction of the floating offshore wind turbine foundation as described in claim 1, characterized in that: The wall panel (14) is sealed and fixedly connected to a connecting pipe (12), and a pressure control valve (13) is sealed and installed on the connecting pipe (12). The pressure control valve (13) is connected to a water pump (11).

3. The construction method of the suction cylinder for the construction of the floating offshore wind turbine foundation as described in claim 1, characterized in that: The bottom of the base plate (15) is fixed with a guide frame (2).

4. The construction method of the suction cylinder for the construction of the floating offshore wind turbine foundation as described in claim 1, characterized in that: The wall panel (14) has an annular rib (16) inside, and a reinforcing ring (17) is fixedly connected to the annular rib (16).

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