CN219172634U - Floating type floating body platform capable of eliminating wave force in any direction - Google Patents

Abstract

The utility model discloses a floating type floating body platform capable of eliminating wave force in any direction, which comprises a main floating body (3) and at least three secondary floating bodies (1), wherein the secondary floating bodies are uniformly distributed around the main floating body by taking the main floating body as a center, each secondary floating body is at least connected with three mooring chains (2), the mooring chains on each secondary floating body are independently grouped, the included angles between the adjacent groups of mooring chains are equal, and the number of the mooring chains in each group of mooring chains and the included angles between the adjacent mooring chains are equal. The main floating body is connected with the secondary floating body through a horizontal cross brace (4), an inclined brace (5) is arranged between the cross brace and the main floating body, the upper end of the secondary floating body is inclined towards the main floating body, and the main floating body, the secondary floating body, the cross brace and the inclined brace form an umbrella rib type structure. The utility model can eliminate the influence of wave force in any direction, can resist the action of huge rotary wave force and has strong stability.

Description

Floating type floating body platform capable of eliminating wave force in any direction

Technical Field

The utility model relates to an offshore wind power floating type floating body platform, in particular to a floating type floating body platform capable of eliminating wave force in any direction.

Background

With rapid global economic development, fossil fuel energy has been gradually exhausted, and the development of renewable energy technology is being actively promoted in all countries. Offshore wind energy is a sustainable, renewable clean energy source. The ocean area of China is wide and boundless, the advantages of rich ocean resources are fully exerted, the design and research of the offshore wind power technology are carried out, and the implementation of the floating type offshore wind power floating body platform and the mooring system is imperative.

Firstly, the floating type offshore wind power floating body platform is easily influenced by wave forces in different directions on the sea, so that the floating body platform is unstable in structure and influences the normal operation of a wind driven generator, particularly under severe sea conditions, strong wave forces can be generated in any direction, even sea water moves violently, and the floating body can generate obvious horizontal displacement or up-down surge. At present, most mooring chains of the traditional floating platform are directly connected to different points of a cylindrical (or other shaped) platform, and although the mooring chains can solve the influence of wave force in any direction to a certain extent, the mooring chains have weak resistance to the floating platform from huge rotary wave force. For example, in the offshore wind power foundation platform disclosed in the chinese patent CN216969956U in the prior art, the main floating body has two mooring chains at different points in the main direction of the wave, and the secondary floating bodies are respectively one mooring chain, and the mooring technology can only well resist the influence of the wave force in the main direction, but cannot resist the influence of the huge rotating wave force, so that the stability is not strong.

Secondly, although the traditional semi-submersible floating body platform has the advantages of easy installation, easy shoreside assembly, easy towing and mature technology, the structure is large in shape and size, and is easily influenced by larger wave load near the water plane, so that the stability of the floating body platform is weaker. The gravity center of the floating body can be lowered by the traditional Spar type floating body platform (deep water floating body platform) to ensure stability, but the span is large, the installation is difficult, the large-scale crane ship is required to be matched, and the manufacturing cost is too high.

Disclosure of Invention

The utility model aims to solve the technical problem that the existing floating type offshore floating body platform is weak in stability, and provides a floating type floating body platform capable of eliminating wave force in any direction.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model provides a can eliminate showy body platform of arbitrary direction wave force, includes main body and at least three secondary body, the secondary body with main body is the center evenly distributed is around the main body, every connect three mooring chain on the secondary body at least, and every mooring chain on the secondary body is independent in groups, and the contained angle between the adjacent group mooring chain equals, and the contained angle between the mooring chain quantity in each group mooring chain and the adjacent mooring chain equals.

According to the floating type floating body platform, the plurality of mooring chains are connected to the plurality of secondary floating bodies in a concurrent mode, the mooring chains on the secondary floating bodies are independent to form groups, the included angles between the adjacent groups of mooring chains are equal, the number of the mooring chains in each group of mooring chains and the included angles between the adjacent mooring chains are equal, so that the floating type floating body platform can eliminate the influence of wave force in any direction under the comprehensive action of self buoyancy and gravity by combining with the ingenious arrangement of the mooring chains, and can resist the action of huge rotary wave force, and is high in stability.

Preferably, the main floating body is connected with the secondary floating body through a horizontal cross brace, an inclined brace is arranged between the cross brace and the main floating body, the upper end of the secondary floating body is inclined towards the main floating body, and the main floating body, the secondary floating body, the cross brace and the inclined brace form an umbrella rib type structure. Obviously, the utility model is different from the traditional semi-submersible cylindrical floating body, adopts a special umbrella rib type multi-floating body structure, combines the advantages of the semi-submersible floating body and the Spar type floating body, reduces the gravity center of the self structure, reduces the external dimension of the structure, and greatly reduces the steel consumption.

Preferably, the secondary floating body is in a truncated cone shape, the small end of the secondary floating body is connected with the transverse support, and the large end of the secondary floating body is connected with the mooring chain.

Preferably, the inclined strut forms an included angle of 45 degrees with the main floating body, and the secondary floating body is mutually perpendicular to the inclined strut.

Preferably, the bottom of the main floating body is connected with the heave plate through a plurality of spring bodies. Under the extreme sea condition, the utility model can resist the influence of upward surge in the wave by utilizing the main floating body and the plurality of spring bodies connected with the main floating body, and simultaneously the restoring force provided by the plurality of spring bodies can also ensure the stability of the umbrella-rib-type multi-floating body platform.

Preferably, a plurality of through holes with triangular cross sections are uniformly distributed on the heave plate. Under the condition of the same area, the circumferences of the triangular holes are larger than those of the round and square holes, so that the damping effect can be improved by uniformly distributing the triangular through holes on the heave plate, the heave response to the floating body platform is greatly reduced, and the stability of the floating body structure is improved.

Compared with the prior art, the utility model has the beneficial effects that:

1. when ocean wave force from any direction exists, the utility model can counteract the influence of the wave force on the platform by utilizing the comprehensive actions of the tension force of the common-point type multiple mooring chains, the buoyancy of the floating body and the gravity, and the anchor chain force of the nine mooring chains of the umbrella rib type multiple floating body platform can resist the strong action of rotating wave force, so that the stability of the multiple floating body structure is very strong.

2. The main floating body, the spring body and the heave plate can reduce the gravity center of the whole floating body platform, and when huge upwelling force of waves is encountered, the spring body can provide restoring force with buffering function, so that the risk of collapse of the offshore wind turbine is prevented, the stability of the multi-floating body structure is high, and the normal operation of the offshore wind turbine is ensured.

3. The triangular perforated heave plate designed by the utility model has larger perimeter than the circular holes and the square holes under the condition of the same area, so that the contact time and perimeter of the heave plate and seawater are increased, more vortex shedding is generated, heave response of a floating body platform is reduced, and the stability of the umbrella-bone-type multi-floating body structure is improved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic perspective view of a floating body platform of the present utility model capable of eliminating any directional wave forces.

FIG. 2 is a schematic top view of a floating body platform of the present utility model capable of eliminating wave forces in any direction.

FIG. 3 is a force analysis schematic of a floating body platform of the present utility model capable of eliminating wave forces in any direction.

FIG. 4 is a schematic view of a heave plate structure according to the utility model.

In the figure: 1 time floating body, 2 mooring chain, 3 main floating body, 4 crossbrace, 5 bracing, 6 spring body, 7 heave plate, 8 tower column, 9 fan cabin, 10 fan blade.

Detailed Description

The utility model is further described below in connection with specific preferred embodiments, but it is not intended to limit the scope of the utility model.

For convenience of description, the relative positional relationship of the components, such as: the descriptions of the upper, lower, left, right, etc. are described according to the layout directions of the drawings in the specification, and do not limit the structure of the present patent.

Referring to fig. 1 and 2, an embodiment of a floating body platform capable of eliminating wave force in any direction according to the present utility model includes three secondary floating bodies 1, nine mooring chains 2, a main floating body 3, three crossbrace 4, three diagonal braces 5, four spring bodies 6, and a triangular perforated heave plate 7.

The three secondary floating bodies 1 are uniformly distributed at 120 degrees by taking the main floating body 3 as the center. The main floating body 3 and the secondary floating body 1 are welded and fixed together through three horizontal braces 4 which are horizontally arranged, and inclined braces 5 are welded and fixed between the three horizontal braces 4 and the main floating body 3 respectively. The secondary floating body 1 is in a truncated cone shape, and the small end of the secondary floating body 1 is connected with a cross brace 4 and is obliquely arranged towards the main floating body 3. The inclined strut 5 and the main floating body 3 form an included angle of 45 degrees, and the secondary floating body 1 and the inclined strut 5 are mutually perpendicular and fixed together in an included angle of 90 degrees. The main floating body 3, the secondary floating body 1, the transverse support 4 and the diagonal support 5 are integrally formed into an umbrella rib type structure.

The radius of the main floating body 3 is 1.5 times of the radius of the secondary floating body 1.

At least three mooring chains 2 are connected to the large end of each secondary floating body 1, the mooring chains 2 on each secondary floating body 1 are independently grouped, the included angles between the adjacent groups of mooring chains 2 are equal, and the number of the mooring chains in each group of mooring chains 2 and the included angles between the adjacent mooring chains 2 are equal. As shown in fig. 3, the pulling forces of the three mooring chains 2 can be theoretically decomposed to the horizontal plane, so as to resist the horizontal wave force in any direction, the buoyancy of the floating body platform is upward, and the gravity is downward, although the buoyancy is larger than the gravity, the vertical component force of the pulling forces of the three mooring chains 2 can reach the balance in the vertical direction, and when the wave force in any horizontal direction is added, the horizontal component force of the pulling forces of the three mooring chains (anchor chains) can also be two simultaneously stressed, so that the influence of any wave force can be offset. In particular, when the rotational wave force acts on the floating body platform under extreme sea conditions, the nine mooring chains 2 of the three secondary floating bodies 1 can simultaneously generate the anchor chain tension to resist the action of strong rotational wave force, so the multipoint mooring system adopted by the utility model ensures that the structure of the multi-floating body platform is very stable.

The bottom of the main floating body 3 is connected with four spring bodies 6 by anti-corrosion iron hooks, the lower ends of the four spring bodies 6 are hooked with heave plates 7, and the spring bodies 6 can provide restoring force to buffer the influence of surge impact on waves, so that the structural stability of the multi-floating body platform is ensured. When the four spring bodies 6 are in a stretching state, the integral gravity center position of the floating platform is lowered, so that the influence of wave force in any direction on the sea can be resisted, and the integral stability of the floating platform structure is enhanced.

Specifically, the lower extreme of the spring body 6 is connected through welded mode and is swayed the board 7, and the equipartition cross section is triangle-shaped's through-hole on swaying the board 7, and under the same area circumstances, triangle-shaped hole has bigger girth than circular hole, square hole, can increase swaying the board 7 and sea water contact girth, produces more eddies and drops to reduce the heave response of whole body platform. As shown in fig. 4, the heave plate 7 has a regular hexagon shape, and the side length of the heave plate 7 is 2 times the maximum radius of the sub-floating body 1.

When the offshore wind turbine floating body is used at sea, the co-point mooring system and the multi-floating body umbrella rib type platform can be utilized, six-degree-of-freedom motion response of the offshore floating body platform is reduced, the gravity center of the floating body platform is lowered, the stability of the floating body structure platform is improved, and therefore the normal operation of the offshore wind turbine is guaranteed.

While the utility model has been described with reference to certain preferred embodiments, it will be understood by those skilled in the art that various changes and modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the utility model. Therefore, any simple modification, equivalent variation and modification of the above embodiments according to the technical substance of the present utility model shall fall within the scope of the technical solution of the present utility model.

Claims (6)

1. The utility model provides a can eliminate showy body platform of arbitrary direction wave force, includes main body (3) and at least three secondary body (1), secondary body uses main body is central evenly distributed is in main body's periphery, its characterized in that: at least three mooring chains (2) are connected to each secondary floating body, the mooring chains on each secondary floating body are independently grouped, the included angles between adjacent groups of mooring chains are equal, and the number of the mooring chains in each group of mooring chains and the included angles between adjacent mooring chains are equal.

2. The floating body platform capable of eliminating wave force in any direction according to claim 1, wherein the main floating body and the secondary floating body are connected through a horizontal cross brace (4), a diagonal brace (5) is arranged between the cross brace and the main floating body, the upper end of the secondary floating body is obliquely arranged towards the main floating body, and the main floating body, the secondary floating body, the cross brace and the diagonal brace form an umbrella rib type structure.

3. The floating pontoon platform of claim 2, wherein said secondary pontoon is frustoconiform and has a small end connected to said cross-brace and a large end connected to said mooring chain.

4. The floating body platform of claim 2 wherein said diagonal braces are at an angle of 45 degrees to said primary floating body and said secondary floating body is perpendicular to said diagonal braces.

5. The floating pontoon platform of claim 1, wherein the bottom of the main pontoon is connected to heave plates (7) via a plurality of spring bodies (6).

6. The floating body platform capable of eliminating wave force in any direction according to claim 5, wherein a plurality of through holes with triangular cross sections are uniformly distributed on the heave plate.

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