CN214648857U - Anchoring foundation suitable for floating type fan - Google Patents

Abstract

The utility model provides an anchor basis suitable for float formula fan, it is including preventing sinking board, flange, spiral anchor and chain anchor subassembly, through preventing sinking the board lower part and setting up the flange, the flange with prevent sinking board and spiral anchor and be connected, the chain anchor subassembly with prevent sinking the board side-on be connected fixedly, a plurality of spiral anchors are triangle-shaped and lay, the anchor rope that the chain anchor subassembly is connected extends to the triangle-shaped center up and is connected with the platform, the utility model overcomes the problem that former traditional floating platform mooring tension balance structure installation is comparatively complicated, the cost is higher, it is simple to have the work progress, the efficiency of construction is high, be convenient for equipment and transportation, with low costs, easy operation is convenient.

Description

Anchoring foundation suitable for floating type fan

Technical Field

The utility model belongs to the technical field of marine wind power basis, a anchor basis suitable for float formula fan is related to.

Background

At present, clean wind energy resources gradually become the focus of new energy development; compared with onshore wind power, offshore wind power is more stable, is close to the coastal power concentration place, and has longer annual utilization time. At present, the foundation of offshore wind power is mainly a fixed structure in a shallow sea area, but with less and less offshore wind power resources available for development, a wind power plant gradually develops to a deep sea area. In the sea area with the water depth of more than 50m, the construction difficulty of the fixed foundation is high, the cost is overhigh, and the floating type fan is a better choice. The floating type fan is simple in principle, the wind turbine generator is installed on the floating type platform and is fixed on the seabed anchoring foundation through a plurality of anchor cables. There are three common types of bottom supported platforms for offshore floating wind turbines: semi-submersible, Spar (Spar), and tension leg. The bottom of the semi-submersible platform is provided with a distributed buoy structure, so that a restoring moment resisting the movement of the platform can be generated when the fan inclines, and the applicable water depth range is wide. The gravity center of the column (Spar) platform is far lower than the floating center, when the platform inclines, a restoring couple can be generated between the gravity center and the floating center, and the applicable water depth is usually more than 100 m. The tension leg type platform is similar to a structure of being tightened up and down, mooring tension vertically downwards balances upward buoyancy of the floating body, but the installation process is complex and the manufacturing cost is high.

Disclosure of Invention

The utility model aims to solve the technical problem that an anchor basis suitable for float formula fan is provided, moreover, the steam generator is simple in structure, adopt and setting up the flange in the board lower part of preventing sinking, the flange is connected with preventing sinking board and spiral anchor, the anchor chain subassembly with prevent sinking the board side-to-side connection fixed, a plurality of spiral anchors are triangle-shaped and lay, the anchor rope that the anchor chain subassembly is connected extends up to the triangle-shaped center and is connected with the platform, the work progress is simple, the efficiency of construction is high, be convenient for assemble and transportation, and is with low costs, easy operation is convenient.

In order to solve the technical problem, the utility model discloses the technical scheme who adopts is: an anchoring foundation suitable for a floating type fan comprises an anti-sinking plate, a flange, a spiral anchor and an anchor chain assembly; the upper end of the spiral anchor is connected with the lower side of the flange, the flange is connected with the anti-sinking plate, and the anchor chain assembly is connected with the anti-sinking plate; the spiral sheet on the spiral anchor is multiple; the plurality of spiral anchors are arranged in a triangular shape, and the anchor cables connected with the anchor chain components extend upwards to the center of the triangular shape.

The anti-sinking plate is of a hollow box-type structure, a plurality of annular raised studs are arranged at the center of the cover plate of the box body, and fillers are arranged inside the box body.

The upper side surface of the flange is annularly provided with a plurality of mounting holes, and bolts are connected with the mounting holes and the anti-sinking plate.

The spiral sheets of the spiral anchor are distributed in the axis direction of the anchor rod at unequal intervals.

The anchor chain component comprises an anchor ring connected with the fixing plate, an anchor cable connected with the anchor ring, and a plurality of fixing holes distributed annularly and arranged outside the anchor ring.

The utility model discloses carry out reasonable combination with the screw anchor with prevent sinking the board basis, to a great extent has promoted the stability of screw anchor and the resistance to plucking bearing capacity that corresponds. This anchor basis is assembled structure, is convenient for adjust, the flexibility ratio is high, the installation cost is low, convenient to use, and size, material and position are adjusted according to marine environment and geological conditions in a flexible way to spiral anchor, anti-sinking board and anchor chain subassembly, and the installation between spiral anchor, anti-sinking board and anchor chain subassembly three is mainly fixed through screw bolt and nut. The anchor has low requirements on the materials and the shapes of the spiral anchor and the anti-sinking plate, low processing difficulty, convenient transportation, batch production, transportation and installation, and is a novel anchor foundation which can be produced, manufactured and installed in a modularized way, and has low cost, flexible transportation and superior bearing capacity.

Drawings

The invention will be further explained with reference to the following figures and examples:

fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural view of the connection between the flange and the screw anchor according to the present invention.

Fig. 3 is a schematic structural view of the screw anchor of the present invention.

Fig. 4 is the internal structure schematic diagram of the anchor chain assembly of the present invention.

Fig. 5 is a schematic structural view of the connection between the anti-sinking plate and the anchor chain assembly of the present invention.

Fig. 6 is a usage state diagram of the present invention.

In the figure: the anti-sinking plate 1, the stud 11, the flange 2, the bolt 21, the spiral anchor 3, the spiral sheet 31, the anchor rod 32, the anchor chain component 4, the fixing plate 41, the anchor ring 42, the anchor cable 43 and the fixing hole 44.

Detailed Description

As shown in fig. 1 to 6, an anchoring foundation suitable for a floating type wind turbine includes an anti-sinking plate 1, a flange 2, a spiral anchor 3 and an anchor chain assembly 4; the upper end of the spiral anchor 3 is connected with the lower side of the flange 2, the flange 2 is connected with the anti-sinking plate 1, and the anchor chain assembly 4 is connected with the anti-sinking plate 1; the spiral sheet on the spiral anchor 3 is a plurality of spiral sheets; the plurality of screw anchors 3 are arranged in a triangular shape, and the anchor lines 43 connected to the chain assembly 4 extend upward toward the center of the triangle.

Preferably, the spiral anchor foundation has the advantages of fast installation, strong anti-pulling performance and convenient recycling compared with other foundation types.

Preferably, the ordinary screw anchor needs to apply larger torque to penetrate into the soil body, the torque required by the reverse rotation soil discharging surface is only one dozen times of that of the penetration, even smaller, if a single screw anchor foundation is used as an anchoring foundation at the bottom of the floating platform, the single screw anchor foundation is likely to rotate in the reverse direction soil discharging surface, so that the foundation is loosened, the bearing capacity of the foundation is greatly reduced, the superstructure is overturned and damaged, engineering accidents are caused, and the situation is prevented by applying pressure on the upper part of the screw anchor.

Preferably, the anti-sinking plate foundation is large in plate area, and the riprap is added on the upper portion of the anti-sinking plate foundation, so that the upper pressure of the anti-sinking plate foundation is conveniently increased, the spiral anchor is connected with the anti-sinking plate foundation, the spiral anchor is prevented from rotating out of the soil surface, and meanwhile, the anti-pulling bearing performance of the anchoring foundation is further improved; in addition, the anti-sinking plate foundation is easy to produce and transport, and is also an advantage of the anchoring foundation.

Preferably, the foundation can effectively resist complex wind wave load of different sea areas, and meanwhile, the production, installation and recovery cost of the floating wind turbine is greatly reduced.

In the preferred scheme, the anti-sinking plate 1 is a hollow box-shaped structure, a plurality of studs 11 protruding in an annular shape are arranged at the center of a cover plate of the box body, and fillers are arranged in the box body.

Preferably, the size of the spiral anchor and the anti-settling plate is adjusted according to the actual bearing condition, the anti-settling plate is internally arranged in a hollow mode, falling stones, broken sands and other industrial wastes can be conveniently placed to increase the weight of the anti-settling plate, and the anti-pulling bearing performance of the anti-settling plate is greatly improved while the material production cost is saved.

Preferably, the number of the screws, the number of the bolt holes and the number of the bolts for connection are adjusted according to actual requirements.

In a preferable scheme, a plurality of mounting holes are annularly distributed on the upper side surface of the flange 2, and the bolts 21 are connected with the mounting holes and the anti-sinking plate 1.

In a preferred scheme, the spiral sheets 31 of the spiral anchor 3 are distributed at unequal intervals in the axial direction of the anchor rod 32.

Preferably, the spiral sheet 31 is combined with the anchor rod by welding, the depth of the spiral sheet 31 penetrating into the soil body is determined according to the requirement of the uplift bearing capacity, the higher the uplift bearing capacity is required, the deeper the installation depth of the anchor sheet is, and the larger the area of the corresponding anchor sheet is.

Preferably, a plurality of spiral sheets 31 are arranged on one spiral anchor, the specific number is determined according to the actual bearing capacity requirement, and the spiral sheets 31 are single-blade.

Preferably, in order to fully exert the bearing performance of each anchor sheet and reduce mutual influence, the distance between the adjacent spiral sheets 31 is set to be more than 6 times of the diameter of the anchor sheet, and the specific distance is determined according to geological conditions.

In a preferred embodiment, the chain assembly 4 includes an anchor ring 42 connected to the fixing plate 41, and an anchor line 43 connected to the anchor ring 42, and a plurality of fixing holes 44 annularly arranged are disposed outside the anchor ring 42.

Preferably, the bolts protruding from the upper portion of the flange pass through the anti-sinking plate and the fixing holes 44 of the fixing plate 41, and then the three are tightly fixed by nuts.

Preferably, the anti-sinking plate is combined with the screw anchor to effectively prevent the screw anchor from loosening; simultaneously, the anti-pulling bearing capacity provided by the spiral anchor enables the anti-sinking plate to be more stable, and the anti-pulling bearing capacity and the anti-sinking plate cooperate with each other. Moreover, under the condition of the same steel consumption, the bearing performance of the base structure compounded by the two is more excellent. The spiral anchor and the anti-sinking plate can be produced in batches in a modularized mode, the anti-sinking plate serves as a common plate-shaped base structure, the shape of the anti-sinking plate can be square, rectangular or circular, the processing difficulty is low, and the production process is simple and easy.

Preferably, the transportation and installation of the screw anchor-anti-sinking plate anchoring foundation are carried out according to the parts in blocks, and the transportation and installation difficulty of each part is low. After the site selection of the floating platform is determined, a plurality of anti-sinking plates and the screw anchors under the same floating platform are transported to an appointed position, and then the screw anchors are penetrated into an appointed depth by a drilling machine. The fixed foundation is convenient to recover, similar processes are adopted for recovery in blocks after the recovery is completed, the floating platform is convenient to re-select the site, and the cost of the mobile platform is reduced.

Preferably, the screw anchor-anti-sinking plate anchoring foundation is produced in a modularized mode, corresponding parts and the number of the parts are selected according to needs, the corresponding transportation construction process is simple and convenient, after each part is transported to a designated position in a blocking mode, the screw anchor is firstly penetrated into the soil body through the screw drilling machine, the upper surface of the flange of the screw anchor is guaranteed to be above the mud surface, the lower surface of the flange is made to be in contact with the soil body, after the screw anchor is installed, the anti-sinking plate foundation is connected with bolts on the flange according to corresponding hole positions, the foundation is made to be in full contact with seabed soil, and the screw anchor and the anti-sinking plate are fixed through the bolts and nuts. After the connection between the two is completed, the anchor chain assembly 4 is installed. Two anchor rings 42 are arranged on the anchor chain assembly 4 and used for connecting the spiral anchor-anti-sinking plate anchoring foundation and the floating platform, and the anchor cables 43 are connected with the anchoring foundation through the anchor rings 42.

The above embodiments are merely preferred technical solutions of the present invention, and should not be considered as limitations of the present invention, and the features in the embodiments and the examples in the present application may be arbitrarily combined with each other without conflict. The protection scope of the present invention shall be defined by the claims and the technical solutions described in the claims, including the technical features of the equivalent alternatives as the protection scope. Namely, equivalent alterations and modifications within the scope of the invention are also within the scope of the invention.

Claims (5)

1. The utility model provides an anchor basis suitable for float formula fan, characterized by: the anti-sinking anchor chain comprises an anti-sinking plate (1), a flange (2), a spiral anchor (3) and an anchor chain component (4); the upper end of the spiral anchor (3) is connected with the lower side of the flange (2), the flange (2) is connected with the anti-sinking plate (1), and the anchor chain component (4) is connected with the anti-sinking plate (1); the spiral sheets (31) positioned on the spiral anchor (3) are multiple.

2. The anchoring substructure suitable for a floating wind turbine as claimed in claim 1, wherein: the anti-sinking plate (1) is of a hollow box-shaped structure, a plurality of studs (11) protruding in an annular shape are arranged at the center of a cover plate of the box body, and fillers are arranged inside the box body.

3. The anchoring substructure suitable for a floating wind turbine as claimed in claim 1, wherein: the upper side surface of the flange (2) is annularly provided with a plurality of mounting holes, and the bolts (21) are connected with the mounting holes and the anti-sinking plate (1).

4. The anchoring substructure suitable for a floating wind turbine as claimed in claim 1, wherein: the spiral sheets (31) of the spiral anchor (3) are distributed at unequal intervals in the axial direction of the anchor rod (32).

5. The anchoring substructure suitable for a floating wind turbine as claimed in claim 1, wherein: the anchor chain assembly (4) comprises an anchor ring (42) connected with the fixing plate (41), an anchor rope (43) connected with the anchor ring (42), and a plurality of fixing holes (44) distributed in an annular mode are formed outside the anchor ring (42).

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