CN209739290U

CN209739290U - Offshore wind power floating foundation with anti-rolling device

Info

Publication number: CN209739290U
Application number: CN201920091087.6U
Authority: CN
Inventors: 高宏飙; 王健; 钱正宏; 陈兴龙
Original assignee: Jiangsu Marine Longyuan Wind Power Generation Co Ltd
Current assignee: Jiangsu Longyuan Offshore Wind Power Co Ltd; Jiangsu Marine Longyuan Wind Power Generation Co Ltd
Priority date: 2019-01-21
Filing date: 2019-01-21
Publication date: 2019-12-06
Anticipated expiration: 2029-01-21

Abstract

The application provides a marine wind power floats formula basis with anti-sway device includes: the floating foundation comprises an anti-rolling tank, an anti-rolling water sump and a top cover plate, wherein the anti-rolling water sump is inserted into the anti-rolling tank, the top cover plate is arranged above the anti-rolling tank, the fan foundation ring is welded to the top of the floating foundation, and the anchoring connection device is connected with the floating foundation. The wave resistance of the floating foundation is effectively solved, the amplitude of the rolling, pitching and heaving motions of the floating foundation is reduced, an obvious stabilization effect is achieved, the function of the floating foundation response is optimized, the stability of the floating foundation is improved, the swing of the upper portion of the wind turbine generator is restrained, the balance stability of the wind turbine generator is improved, and the stable operation of the wind turbine generator is further guaranteed.

Description

offshore wind power floating foundation with anti-rolling device

Technical Field

The application belongs to the field of offshore wind power, and particularly relates to a floating type foundation with an anti-rolling device for offshore wind power.

Background

Along with offshore wind power development, wind-powered electricity generation field sea area depth of water progressively deepens, reaches 40 meters in the depth of water, and when even deeper sea area, traditional fixed basis cost is on the high side, and is higher and higher to the requirement of piling equipment and construction ship, and floats the formula basis and have obvious advantage: firstly, the sea area has stable wind speed and rich wind energy; the mounting position can be moved, so that the maintenance and the removal are convenient; eliminating visual influence and greatly reducing the influence of noise and electromagnetic wave; fourthly, the offshore installation procedure is simplified, and the cost is greatly reduced.

However, the floating foundation is prone to generate large pitching, rolling, rotating and heaving under the action of wind, waves and currents, so that an offshore wind turbine generator with a hub height of about 100 m cannot normally operate, and in order to improve the stability of the floating foundation, the gravity center is reduced, or the area of a waterline is increased, the gravity center is reduced, the manufacturing cost of the floating foundation can be obviously increased, the area of the waterline is increased, the wave load is increased, and the stability of floating balance is not good.

Disclosure of Invention

Technical problem to be solved

In view of above-mentioned technical problem, the application provides a marine wind power floats formula basis with anti-sway device, has effectively solved the wave resistance of floating formula basis, reduces the amplitude of floating formula basis roll, pitch and heave motion, reaches obvious anti-sway effect, has optimized the function of floating formula basis response, has improved the stability of floating formula basis, restraines the swing on wind turbine generator system upper portion, has improved the balanced stability of unit, has further guaranteed wind turbine generator system steady operation.

(II) technical scheme

The application provides a marine wind power floats formula basis with anti-sway device includes:

The floating foundation consists of an anti-rolling tank, an anti-rolling water bin and a top cover plate, the anti-rolling water bin is inserted into the anti-rolling tank, and the top cover plate is arranged above the anti-rolling tank;

The fan foundation ring is welded on the top of the floating foundation;

and the anchoring connection device is connected with the floating foundation.

In some embodiments of the present application, the tank bottoms at the left and right ends of the anti-rolling tank are communicated with each other.

In some embodiments of the present application, the roll reduction sump is trough-shaped and mates with the roll reduction tank.

in some embodiments of the present application, the top cover plate is made of steel plate and steel skeleton.

In some embodiments of the application, the mooring attachment means is comprised of a connector member having an upper end connected to the inside of the floating foundation and a lower end connected to the seabed anchoring means.

in some embodiments of the present application, the floating foundation is on a vertical line with the center of the wind turbine foundation ring.

The third beneficial effect can be seen from the technical scheme, the application has at least one of the following beneficial effects:

(1) The connecting piece of this application has connected floating foundation and seabed anchor, the effectual stability of floating foundation at sea that has promoted.

(2) The utility model provides a tank body bottom intercommunication of the tank left and right sides that subtracts shakes of jar relies on the flow resistance of adjustment communicating pipe, makes the automatic make a round trip of water of the tank body in both ends flow, forms and floats formula basis and sway opposite direction's moment to reduce and sway.

(3) the utility model provides an anti-rolling sump be the cell type and with anti-rolling tank matches each other, couples the floating formula basis left and right sides side cabin with the basin that has great free liquid level, and the oscillation of basin normal water shows the damping of water cabin, obtains stabilizing force moment with suitable basin yardstick and water cabin depth of water to reduce the rolling motion of floating formula basis, its anti-rolling effect is showing fairly.

(4) This application simple structure, it is convenient to make, and manufacturing cost is lower, can effectual solution float formula basis resistant ripples nature, reaches obvious anti-rolling effect.

Drawings

fig. 1 is a front view of an embodiment of the present application.

Fig. 2 is a schematic view of a roll reduction water sump according to the present application.

Figure 3 is a schematic representation of a stabiliser tank according to the invention.

FIG. 4 is a schematic representation of the stabilization basis of the present application.

[ description of main reference numerals in the application ]

1. A fan foundation ring; 2. a floating foundation; 3. a fan;

31. An anti-rolling tank; 32. anti-rolling water sump.

Detailed Description

The application provides a marine wind power floats formula basis with anti-sway device has effectively solved the wave resistance of floating formula basis, reduces the amplitude of floating formula basis roll shake, pitch and the motion of swaying, reaches obvious anti-sway effect, has optimized the function of floating formula basis response, has improved the stability of floating formula basis, restraines the swing on wind turbine generator system upper portion, has improved the balanced stability of unit, has further guaranteed wind turbine generator system steady operation. In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is further described in detail below with reference to the accompanying drawings in combination with specific embodiments.

DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION

The application provides a marine wind power floats formula basis with anti-sway device includes: the floating foundation comprises a floating foundation 2, a fan foundation ring 1, a fan 3 and a mooring connecting device, wherein the fan foundation ring 1 is fixedly welded at the top of the floating foundation 2, the floating foundation 2 consists of an anti-rolling tank 31, an anti-rolling water bin 32 and a top cover plate, the bottoms of tank bodies at the left end and the right end of the anti-rolling tank 31 are mutually communicated, and the water of the tank bodies at the two ends automatically flows back and forth by adjusting the flow resistance of a communicating pipe to form a moment opposite to the swinging direction of the floating foundation, so that the swinging is reduced. The anti-rolling water sump 32 is inserted into the anti-rolling tank 31, the anti-rolling water sump 32 is of a groove type and is matched with the anti-rolling tank 31, the anti-rolling water sump 32 is an improved plane water sump, the left side chamber and the right side chamber of the floating foundation are connected by utilizing a water tank with larger free liquid level, the oscillation of water in the water tank is represented as the damping of the water sump, and a stable moment is obtained by using a proper water tank size and the water depth of the water sump so as to reduce the rolling motion of the floating foundation, so that the anti-rolling effect is quite remarkable. The top apron is located anti-rolling tank 31 top, 1 fixed welding of fan foundation ring is in on the top apron, be equipped with fan 3 on the wind-powered electricity generation foundation ring 1, the top apron is made by steel sheet and shaped steel skeleton.

The anchoring connection device is fixedly connected with the floating foundation 2 and consists of 4 steel cables, the upper ends of the steel cables are connected with the inner side of the floating foundation 2, and the lower ends of the steel cables are connected with the seabed anchoring device. The steel cable of the application is connected with the floating foundation 2 and the seabed anchoring device, and the stability of the floating foundation on the sea is effectively improved. The center of showy basis 2, fan foundation ring 1, fan 3 all is on a vertical line, avoids producing extra shock when vibrations. This application simple structure, it is convenient to make, and manufacturing cost is lower, can effectively reduce the pitch and the heaving of fan.

The application also provides a construction step of marine wind power floating foundation with anti-rolling device, the step is as follows:

The offshore wind power floating type foundation with the anti-rolling device is manufactured by steel plates in a shoreside manufacturing field, a wind power foundation ring 1 is installed on the floating foundation 2, a fan 3 is installed on the floating foundation 2 by a split type installation process on the shoreside after the floating foundation 2 is submerged, the floating foundation 2 and the fan 3 are integrally transported to a sea area where a wind turbine generator set is to be installed, one end of four steel cables is connected with the inner side of the floating foundation 2, and the other end of each steel cable is fixed on a seabed anchoring device.

Up to this point, the present embodiment has been described in detail with reference to the accompanying drawings. From the above description, one skilled in the art should clearly recognize the present application.

It is to be noted that, in the attached drawings or in the description, the implementation modes not shown or described are all the modes known by the ordinary skilled person in the field of technology, and are not described in detail. Furthermore, the above definitions of the various elements and methods are not limited to the specific structures, shapes, or configurations shown in the examples.

It is also noted that the illustrations herein may provide examples of parameters that include particular values, but that these parameters need not be exactly equal to the corresponding values, but may be approximated to the corresponding values within acceptable error tolerances or design constraints. Directional phrases used in the embodiments, such as "upper", "lower", "front", "rear", "left", "right", etc., refer only to the orientation of the drawings and are not intended to limit the scope of the present application. In addition, unless steps are specifically described or must occur in sequence, the order of the steps is not limited to that listed above and may be changed or rearranged as desired by the desired design. The embodiments described above may be mixed and matched with each other or with other embodiments based on design and reliability considerations, i.e., technical features in different embodiments may be freely combined to form further embodiments.

The above-mentioned embodiments are further described in detail for the purpose of illustrating the invention, and it should be understood that the above-mentioned embodiments are only illustrative of the present invention and are not to be construed as limiting the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a marine wind power floats formula basis with anti rolling device which characterized in that includes:

The fan foundation ring is welded on the top of the floating foundation;

And the anchoring connection device is connected with the floating foundation.

2. The offshore wind power floating foundation with the anti-rolling device according to claim 1, wherein the tank bottoms at the left and right ends of the anti-rolling tank are communicated with each other.

3. the offshore wind floating foundation with sway reducing assemblies of claim 1 wherein said sway reducing silos are channel-type and mated with said sway reducing tanks.

4. the offshore wind powered floating foundation with sway reduction assemblies of claim 1, wherein said top deck is made of steel plate and steel skeleton.

5. The floating foundation for offshore wind power with stabilizer according to claim 1, characterized in that the mooring attachment means consists of a connecting piece, the upper end of which is connected to the inside of the floating foundation and the lower end of which is connected to the seabed anchoring means.

6. The offshore wind powered floating foundation with sway reducing assembly of claim 1, wherein said floating foundation is on a vertical line with the center of the wind turbine foundation ring.