CN215890322U

CN215890322U - Fan platform

Info

Publication number: CN215890322U
Application number: CN202122044724.4U
Authority: CN
Inventors: 施伟; 冯森森; 李昕; 赵海盛; 王文华; 翟钰婷
Original assignee: Dalian University of Technology
Current assignee: Dalian University of Technology
Priority date: 2021-08-05
Filing date: 2021-08-27
Publication date: 2022-02-22
Anticipated expiration: 2031-08-27

Abstract

The utility model belongs to the technical field of wind power generation and discloses a fan platform. Comprises a wind power generator; a rotor; a circular column; a diagonal brace; a column; a cable guide hole; a platform; an anchor chain; a baffle plate; a steel chain; and (4) carrying out ballast. The wind driven generator is fixedly installed at the center of the supporting piece at the upper part of the platform through a circular upright post, four corners at the upper part of the platform are respectively provided with a cable guide hole for being connected with an anchor chain, each cable guide hole is respectively connected with two anchor chains, the included angle between the two anchor chains at the same cable guide hole is 5 degrees, and a ballast is arranged below the platform; baffles with equal width and equal thickness are distributed at the outer edge of the periphery of the bottom of the platform; four vertexes on the inner side of the bottom of the platform are connected with the ballast through steel chains. The draught fan platform is simple in structure, convenient to construct, wide in applicable water depth range and capable of effectively reducing the heaving motion response of the platform.

Description

Fan platform

Technical Field

The utility model belongs to the technical field of wind power generation, relates to a fan platform, and particularly relates to a floating type fan platform suitable for medium water areas.

Background

Since offshore wind power is generally close to an energy consumption center and wind resource conditions are superior to onshore wind power, utilization and development of wind power are gradually shifting from land to ocean, and a situation of accelerated development is being presented.

China is rich in offshore wind resource reserves, offshore wind power development is an important part of new energy strategies in China, and the offshore wind power technology represents the highest level of the current wind power technology, so that the development of the offshore wind power technology and the research and development of a novel offshore wind power floating foundation structure with high reliability and low cost have important strategic significance.

At present, four floating offshore wind power platforms exist, mainly comprising a column (spar), a Tension Leg (TLP), a semi-submersible type and a barge type (cage). At present, the offshore floating type wind turbine platform which is built or constructed is mainly of a vertical column type and a semi-submersible type, and the applicable water depth is more than 60 meters. For medium water depths of 40 m to 60 m, barge-type platforms have good adaptability, but have large motion response and poor stability. Aiming at the defects, the utility model provides a floating type fan platform suitable for medium water areas.

SUMMERY OF THE UTILITY MODEL

The utility model mainly solves the technical problem that the heave motion of the platform is overlarge during the marine motion, and provides the floating type fan platform suitable for medium water areas.

The above purpose of the utility model is realized by the following technical scheme:

a floating fan platform suitable for medium water areas; comprises a wind power generator; a rotor; a circular column; a diagonal brace; a column; a cable guide hole; a platform; an anchor chain; a baffle plate; a steel chain; and (4) carrying out ballast.

The wind driven generator is fixedly installed at the center of the supporting piece at the upper part of the platform through a circular upright post, cable guide holes are respectively formed in four corners of the upper part of the platform and are used for being connected with anchor chains, each cable guide hole is respectively connected with two anchor chains, and the included angle between the two anchor chains at the same cable guide hole is 5 degrees; a ballast is arranged below the platform; baffles are distributed at the outer edge of the periphery of the bottom of the platform; four top points on the inner side of the bottom of the platform are connected with the ballast through steel chains.

And a damping pool is arranged in the middle of the platform. The circular upright post is of a tower barrel structure.

The platform is a rectangular platform.

The upper supporting piece of the rectangular platform consists of an inclined supporting rod and an upright post; four diagonal braces and four upright posts are respectively arranged; the bottoms of the four stand columns are fixed on the upper surface of the rectangular platform, the tail ends of the four diagonal braces are respectively connected with the four stand columns, the front end intersection points of the four diagonal braces are welded together, and the bottoms of the round stand columns are fixedly connected with the center of the front end intersection points of the four diagonal braces.

And a rotor is also arranged at the center of the wind driven generator.

Further, the ballast may be one of concrete, ore and sand ballast.

Further, the four upright posts are the same in width and height.

Further, the four diagonal support rods are identical in width and length.

Furthermore, the baffles are arranged around the bottom of the platform, and the width and the thickness of each baffle are the same.

Preferably, four vertex positions on the inner side of the bottom of the platform are connected with steel cables for connecting with ballast weights, so that the overall mass of the structure is increased.

The outer edge of the periphery of the bottom of the platform is provided with baffle structures with the same width, and the baffle structures are made of steel materials and used for reducing the motion response of the platform.

The four inclined supporting rods are directly connected to the four upright posts to form a stable supporting structure for supporting the circular upright posts and the wind driven generator, wherein the upper ends of the circular upright posts are fixedly connected with each other.

The platform is a rectangular floating body structure and is used for being connected with the four upper upright posts to form a stable floating body structure, the floating body is large in size and capable of providing enough buoyancy, and the surface of the platform can be used for maintenance personnel to walk.

The interior of the platform is of a hollow structure, namely a damping pool structure, so that the motion of the platform can be reduced by utilizing the action of the damping pool, and the drag force of ocean current is resisted.

Four corners of the upper part of the platform are respectively provided with a cable guide hole, and the anchor chain is a mooring cable; connecting a mooring cable to the platform, wherein the mooring cable is formed by combining a steel cable and an iron chain, the top of the mooring cable is fixedly connected with cable guide holes at four angular points on the upper part of the platform, the bottom of the mooring cable is fixedly connected with an anchoring fixture arranged on the sea bottom, the mooring cable plays a role in buffering external sea wave load, and the overall structure of the platform is protected to be safe.

The ballast is made of one material of concrete, ore sand or gravel, provides enough gravity, is used for reducing the gravity center, can effectively reduce the vertical displacement of the platform, and improves the overall stability of the platform.

The utility model aims to provide a floating type fan platform suitable for medium water areas aiming at the defects of the prior art, and effectively utilizes the advantages of flexible installation and wide application water depth range of the floating type platform. The platform has simple structure and high practical value, and can effectively promote the application of the platform in industry.

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

whole body structure is not eccentric structure, through the connection of four stands and four bracing poles for circular stand tower tube structure is in platform central point all the time and puts, need not to set up too big ballast water and comes the overturning moment of balanced structure, guarantees the stability of platform.

The platform adopts bulky, and the structure of damping pond is established at the platform middle part, can provide great damping, effectually lowers the accent steady to floating foundation focus for marine power generation basis can not resist more powerful ability to resist anti-wind and unrestrained. The lower part of the platform is connected with a ballast, so that the gravity center of the platform is reduced, and the heaving motion response of the structure is effectively reduced. The baffles with the same width are connected to the periphery of the bottom of the platform, so that the viscous damping effect of the platform can be increased, and the motion response of the platform is reduced.

The platform provided by the utility model has the advantages of simple construction, low maintenance cost, small platform motion response and reasonable structure. The economy of the platform is improved, and the platform has a good use value.

Drawings

Fig. 1 is a schematic structural diagram of a floating fan platform suitable for medium water areas according to the present invention.

Figure 2 is a platform and ballast distribution diagram.

In the figure: 1. a wind power generator; 2. a rotor; 3. a circular column; 4. bracing; 5. a column; 6. a cable guide hole; 7. a platform; 8. an anchor chain; 9. a baffle plate; 10. a steel chain; 11. and (4) carrying out ballast.

Detailed Description

The utility model is described in more detail below with reference to specific examples, without limiting the scope of the utility model. Unless otherwise specified, the experimental methods adopted by the utility model are all conventional methods, and experimental equipment, materials, reagents and the like used in the experimental method can be obtained from commercial sources.

Example 1

A floating fan platform suitable for medium water areas; as shown in fig. 1-2, includes a wind power generator 1; a rotor 2; a circular column 3; a diagonal brace 4; a column 5; a cable guide hole 6; a platform 7; an anchor chain 8; a baffle 9; a steel chain 10; a ballast 11.

The wind driven generator 1 is fixedly installed at the center of a supporting piece at the upper part of a platform 7 through a circular upright post 3, four corners at the upper part of the platform 7 are respectively provided with a cable guide hole 6 for connecting with anchor chains 8, each cable guide hole 6 is respectively connected with two anchor chains 8, and the included angle between the two anchor chains 8 at the same cable guide hole 6 is 5 degrees; a ballast 11 is arranged below the platform 7; baffle plates 9 are distributed at the outer edge of the periphery of the bottom of the platform 7, and four vertexes of the inner side of the bottom of the platform 7 are connected with ballast 11 through steel chains 10.

And a damping pool is arranged in the middle of the platform 7. The circular upright post 3 is of a tower barrel structure.

The platform 7 is a rectangular platform 7.

The upper supporting part of the rectangular platform 7 consists of an inclined supporting rod 4 and a vertical column 5; four diagonal braces 4 and four upright posts 5 are respectively arranged; the bottoms of the four upright posts 5 are fixed on the upper surface of the rectangular platform 7, the tail ends of the four inclined supporting rods 4 are respectively connected with the four upright posts 5, the front end intersection points of the four inclined supporting rods 4 are welded and connected together, and the bottoms of the round upright posts 3 are fixedly connected with the front end intersection point centers of the four inclined supporting rods 4.

The inclined strut 4 and the upright post 5 jointly form a support piece at the upper part of the rectangular platform 7, so that the integral fan platform structure is ensured to be always in a non-eccentric state, and the overturning moment generated by the structure per se is not required to be balanced by adopting larger ballast water (figure 2).

And a rotor 2 is also arranged at the center of the wind driven generator 1.

And a fixed ballast 11 is arranged below the rectangular platform 7 and is mainly used for lowering the gravity center and reducing the motion response of the platform 7, and the ballast 11 can be one of three forms of concrete, ore sand and sand ballast.

The rectangular platform 7 is in a large-volume (160000 cubic meters) form, a damping pool is arranged in the middle of the rectangular platform, and baffles are arranged at the outer edge of the periphery of the bottom of the rectangular platform, so that the viscous damping effect of the structure is improved, the wave acting force is greatly reduced, and the stability of the whole structure is improved.

When the shoreside is assembled, the baffle plates 9 are fixedly welded at the peripheral outer edge of the bottom of the rectangular platform 7, the whole floating type wind driven generator 1 is supported by the buoyancy of the rectangular platform 7, then the four stand columns 5 are fixed on the upper surface of the rectangular platform 7, and the inclined support rods 4 are fixed on the four stand columns 5. Under the normal operation condition of a target sea area, the lower heavy object 11 provides enough weight to enable the platform to reach target draught, the gravity center of the whole floating type fan foundation is lowered, the stability and the wave resistance are improved, and then the whole platform is moored on the seabed by using the anchor chain 8.

The embodiments described above are merely preferred embodiments of the utility model, rather than all possible embodiments of the utility model. Any obvious modifications to the above would be obvious to those of ordinary skill in the art, but would not bring the utility model so modified beyond the spirit and scope of the present invention.

Claims

1. A fan platform is characterized by comprising a wind driven generator (1); a rotor (2); a circular upright (3); a diagonal strut (4); a column (5); a cable guide hole (6); a platform (7); an anchor chain (8); a baffle (9); a steel chain (10); a ballast (11);

the wind driven generator (1) is fixedly installed at the center of a supporting piece at the upper part of a platform (7) through a circular upright post (3), four corners at the upper part of the platform (7) are respectively provided with a cable guide hole (6) for connecting with an anchor chain (8), each cable guide hole (6) is respectively connected with two anchor chains (8), and a ballast (11) is arranged below the platform (7); baffle plates (9) are distributed at the outer edge of the periphery of the bottom of the platform (7), and four top points at the inner side of the bottom of the platform (7) are connected with a ballast (11) through steel chains (10).

2. A wind turbine platform according to claim 1, characterised in that a damping tank is arranged in the middle of the platform (7).

3. A wind turbine platform according to claim 2, characterised in that the upper support of the platform (7) is made up of diagonal braces (4) and uprights (5); four diagonal braces (4) and four upright posts (5) are respectively arranged; the bottoms of the four upright posts (5) are fixed on the upper surface of the platform (7), the tail ends of the four inclined supporting rods (4) are respectively connected with the four upright posts (5), the front end intersection points of the four inclined supporting rods (4) are welded together, and the bottoms of the circular upright posts (3) are fixedly connected with the front end intersection point centers of the four inclined supporting rods (4).

4. A wind turbine platform according to claim 3, characterised in that the circular upright (3) is of a tower construction.

5. A wind turbine platform according to claim 4, characterised in that the ballast (11) is one of concrete, sand and sand ballast.

6. A wind turbine platform according to claim 5, characterised in that said four uprights (5) are of the same width and height.

7. The wind turbine platform according to claim 6, wherein the four diagonal struts (4) have the same width and length.

8. Wind turbine platform according to claim 7, characterised in that a rotor (2) is arranged in the centre of the wind turbine (1).