A damping pool floating wind turbine and its anti-rolling device

Abstract

The present invention discloses a damping pool floating wind turbine and its anti-rolling device, which is characterized by comprising: a floating box (1) of the floating wind turbine, a water-permeable net (2) for partitioning the floating box (1) is arranged in the floating box (1); a damping member (3) with a grid for increasing the contact area with seawater is arranged on the lower bottom surface of the floating box (1); a water-permeable grid member (5) connected to the floating box (1) through a mooring rope (4). By arranging the water-permeable net, the damping member and the water-permeable grid member, the damping effect is increased from multiple aspects, the stability of the structure is improved, and the purpose of anti-rolling is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of offshore wind power, and particularly to a damping pool floating wind turbine and its anti-rolling device. Background Art

[0002] With the continuous expansion of wind energy resource development, especially in deep waters, the research on floating wind turbines has received much attention. Common floating foundations include vertical column foundations, tension leg foundations, and semi-submersible foundations, etc. The water depth along the coast of China is relatively shallow. Considering the water depth applicability of the platform and the cost of the mooring structure, the vertical column wind turbine foundation has received extensive attention due to its simple structure and good stability.

[0003] Currently, conventional vertical column floating wind turbines are applicable to deep waters with a water depth of 80m, and mainly include a wind turbine, a tower, a foundation structure, and a mooring structure. Among them, the vertical floating wind turbine foundation needs to consider wind loads, wave loads, hydrodynamic loads, and mooring loads at the same time. Therefore, it has higher requirements for stability and a greater draft depth.

[0004] In addition, for the foundation structure of the vertical column floating wind turbine, because its dynamic characteristics are similar to those of a ship, in order to increase the stability of the foundation structure, an anti-rolling water tank needs to be added.

[0005] Therefore, how to provide an anti-rolling device for a damping pool floating wind turbine to ensure the stability of the floating wind turbine is an urgent problem to be solved by those skilled in the art. Summary of the Invention

[0006] In view of this, the present invention provides an anti-rolling device for a damping pool floating wind turbine to ensure the stability of the floating wind turbine. The present invention also provides a damping pool floating wind turbine with the above anti-rolling device.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] An anti-rolling device for a damping pool floating wind turbine, comprising:

[0009] A floating box of the floating wind turbine, and a permeable net for partitioning the floating box is arranged inside the floating box;

[0010] A damping member with a grid arranged on the lower bottom surface of the floating box for increasing the contact area with seawater;

[0011] A permeable grid member connected to the floating box by a mooring rope.

[0012] Preferably, in the above anti-rolling device, a plurality of the permeable nets inside the floating box have different permeabilities.

[0013] Preferably, in the above anti-rolling device, the damping member is a grid box structure fixed to the lower bottom surface of the floating box or a grid cylinder fixed to the lower bottom surface of the floating box.

[0014] Preferably, in the above anti-rolling device, the floating box is a rectangular member, and the four floating boxes are connected end to end to form the foundation platform of the floating wind turbine, and the height of the damping member increases continuously from the end to the middle in the length direction of the floating box.

[0015] Preferably, in the above anti-rolling device, the height of the damping member increases continuously from the side end to the middle in the width direction of the floating box.

[0016] Preferably, in the above anti-rolling device, the water permeability of the damping member is the same.

[0017] Preferably, in the above anti-rolling device, the permeable grid members are symmetrically distributed about the center of the foundation platform formed by the floating boxes.

[0018] Preferably, in the above anti-rolling device, the mooring rope is a flexible rope.

[0019] Preferably, in the above anti-rolling device, the permeable grid member is a cylinder.

[0020] Preferably, in the above anti-rolling device, the floating box, the damping member and / or the permeable grid member are structural members for aquaculture.

[0021] A damping pond floating wind turbine includes an anti-rolling device, wherein the anti-rolling device is the anti-rolling device described in any one of the above.

[0022] The present invention provides an anti-rolling device for a damping pond floating wind turbine. By setting a permeable net, a damping member and a permeable grid member, the damping effect is increased from multiple aspects, the stability of the structure is improved, and the purpose of anti-rolling is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention, and those of ordinary skill in the art can also obtain other drawings based on these drawings without creative efforts.

[0024] Figure 1 It is a schematic structural diagram of the first anti-rolling device of the damping pond floating wind turbine disclosed in the embodiments of the present invention;

[0025] Figure 2 For Figure 1 the internal structure of the floating box in and the schematic structural diagram of the outer connection;

[0026] Figure 3 This is a schematic structural diagram of the first anti-rolling device of the damping pool floating wind turbine disclosed in the embodiments of the present invention;

[0027] Figure 4 is Figure 3 a schematic structural diagram of the internal structure of the floating box and the external connection in Detailed implementation manners

[0028] The present invention discloses an anti-rolling device for a damping pool floating wind turbine to ensure the stability of the floating wind turbine. In addition, the present invention also discloses a damping pool floating wind turbine having the above anti-rolling device.

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0030] As Figures 1 - 4 shown, the present application discloses an anti-rolling device for a damping pool floating wind turbine, including: a floating box 1 of the floating wind turbine, a damping member 3, and a permeable grid member 5. Among them, a permeable net 2 for partitioning the floating box 1 is arranged in the floating box 1. Through the permeable net 2, the period of the liquid in the floating box 1 can be adjusted, so as to achieve the anti-rolling effect; and the damping member 3 is arranged on the lower bottom surface of the floating box 1 to increase the contact area between the anti-rolling device of the floating wind turbine and the sea water, so as to further achieve the anti-rolling purpose; the above-mentioned permeable grid member 5 is connected to the floating box 1 through a mooring rope 4, which can play a role similar to a heaving plate, thereby increasing the damping of the entire anti-rolling device and improving the stability of the structure. In the present application, by arranging the permeable net 2, the damping member 3, and the permeable grid member 5, the damping effect is increased from multiple aspects, the stability of the structure is improved, and the anti-rolling purpose is achieved.

[0031] There are multiple permeable nets 2 in the floating box 1 of the present application, and their water permeability rates are all different. In practice, they can also be set to be the same. By setting different numbers of permeable nets and setting different water permeability rates according to different needs, the period of the liquid in the floating box 1 can be adjusted to achieve the best anti-rolling effect. The specific water permeability rate can be set according to the anti-rolling requirements of the liquid in the floating box, and all are within the protection scope.

[0032] The damping member 3 of the grid disclosed in the above embodiments is a grid box structure fixed to the lower bottom surface of the floating box 1 or a grid cylinder fixed to the lower bottom surface of the floating box 1. The specific shape and size of the damping member 3 can be set according to different needs, and all are within the protection scope. In this application, the damping member 3 is set as a rectangular grid box, which is convenient for connecting with the lower bottom surface of the floating box 1. Since the function of the set damping member 3 is to increase the contact area between the anti-rolling device and seawater, any shape of the damping member 3 on this basis is acceptable.

[0033] In a specific embodiment, the above floating box 1 is a rectangular member, and the four floating boxes 1 are connected end to end to form the foundation platform of the floating wind turbine. And along the length direction of the floating box 1, from the end to the middle direction, the height of the damping member 3 continuously increases, so that the height of the damping member 3 in the middle part of the floating box 1 is the largest, that is, the contact area with seawater is the largest, and the center of gravity of the damping member 3 on the floating box 1 is made as close as possible to the center of gravity of the floating box 1, thereby further increasing the damping and improving the stability. The specific dimensions and spacing of the damping member 3 are not limited herein.

[0034] In a further embodiment, along the side end to the middle direction of the width direction of the floating box 1, the height of the above damping member 3 continuously increases, that is, combining the content of the above embodiments, the purpose of the setting is to make the center of gravity of the damping member 3 on the floating box 1 coincide with the center of gravity of the floating box 1 as much as possible. In practice, the damping member 3 can be set as multiple small boxes or multiple small cylinders, and the corresponding height differences can be set according to different requirements.

[0035] In a specific embodiment, the water permeability of the above damping member 3 is the same or different. The specific water permeability can be adjusted according to the size and weight of the floating box, etc. Different water permeabilities will result in different periods of the liquid in the floating box.

[0036] The mooring rope 4 disclosed in the above embodiments is a flexible rope. Selecting a flexible rope can make the permeable grid member 5 play a role similar to a heaving plate, thereby increasing the overall damping and improving the stability of the structure. The flexible rope can be a hemp rope or a rigid chain structure.

[0037] The permeable grid members 5 disclosed in this application are symmetrically distributed along the center of the foundation platform formed by the floating boxes 1. In this way, it can be ensured that the center of the connection line of the permeable grids 5 coincides with the center of gravity of the foundation platform as much as possible, thereby ensuring the stability of the entire anti-rolling device and improving the anti-rolling effect.

[0038] The above permeable grid member 5 can be a cylindrical member. By setting it as a cylindrical member, the wear of the permeable grid member 5 can be alleviated, and the service life of the permeable grid member 5 can be guaranteed. In addition, it can also ensure that the distance from the outer edge of the cylindrical member to the rotation axis of the cylindrical member is the same, which can ensure the stability of the cylindrical member.

[0039] On the basis of the above technical solutions, in the present application, the floating box 1, the damping member 3 and / or the permeable grid member 5 are structural members for aquaculture. That is, the functions of the floating box 1, the damping member 3 and the permeable grid member 5 are defined here. While achieving roll reduction, they can be used as structures for aquaculture, increasing functionality and utilization rate, and making the product functions more diversified.

[0040] In addition, the present application also discloses a damping pond floating wind turbine, including a roll reduction device. Among them, the roll reduction device is the roll reduction device disclosed in the above embodiment. Therefore, the damping pond floating wind turbine with this roll reduction device also has all the above technical effects, which will not be elaborated one by one here.

[0041] In this specification, the various embodiments are described in a progressive manner. The key point of each embodiment is to illustrate the differences from other embodiments. For the same and similar parts among the various embodiments, reference can be made to each other.

[0042] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A roll reduction device for a damping pool floating wind turbine, characterized in that, Comprising: The floating box (1) of a floating wind turbine, wherein a water-permeable net (2) for partitioning the floating box (1) is arranged inside the floating box (1); A damping member (3) provided on the lower bottom surface of the floating box (1) and having a grid for increasing the contact area with seawater; A water-permeable grid member (5) connected to the floating box (1) by a mooring rope (4); There are multiple water-permeable nets (2) inside the floating box (1), and their water permeability rates are different; The damping member (3) is a grid box structure fixed on the lower bottom surface of the floating box (1) or a grid cylindrical member fixed on the lower bottom surface of the floating box (1).

2. The anti-rolling device according to claim 1, characterized in that, The floating box (1) is a rectangular member, and four floating boxes (1) are connected end to end to form the foundation platform of the floating wind turbine, and the height of the damping member increases continuously from the end to the middle in the length direction of the floating box (1).

3. The anti-rolling device according to claim 2, characterized in that, The height of the damping member increases continuously from the side end to the middle in the width direction of the floating box (1).

4. The anti-rolling device according to claim 2, characterized in that, The water permeability rate of the damping member is the same.

5. The anti-rolling device according to claim 2, characterized in that, The water-permeable grid member (5) is symmetrically distributed about the center of the foundation platform formed by the floating boxes (1).

6. The anti-rolling device according to claim 1, characterized in that, The mooring rope (4) is a flexible rope.

7. The anti-rolling device according to claim 1, characterized in that, The water-permeable grid member (5) is a cylindrical member.

8. The anti-rolling device according to any one of claims 1 to 7, characterized in that, The floating box (1), the damping member (3) and / or the water-permeable grid member (5) are structural members for aquaculture.

9. A damping pool floating wind turbine, including a roll reduction device, characterized in that, The anti-rolling device is the anti-rolling device according to any one of claims 1-8.

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