Anti-scouring structure for pile foundation of offshore wind driven generator

Abstract

The utility model provides a pile foundation anti-scour structure of an offshore wind driven generator, which relates to the technical field of wind driven generators and comprises a pile foundation body, a first natural rock layer is fixedly connected to the outer surface of the top of the pile foundation body, and a first groove is formed in the center of the top of the pile foundation body. Second grooves are formed in the front and back positions of the two sides of the inner bottom of the first groove, and first concrete supporting columns are slidably connected to the centers of the inner surface walls of the second grooves. In the actual use process, the first concrete supporting columns and the second concrete supporting columns can be fixed to a seabed rock layer, the stability is higher, and the service life of the seabed rock layer is prolonged. The first natural rock layer is obliquely arranged, so that a slope protection structure can be formed, the impact force of sea waves on the pile foundation body can be reduced, the pile body can be dragged through the arrangement of the first hanging ring, the second hanging ring, the hook and the steel wire rope, and the windproof effect can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of wind turbines, in particular to an anti-scouring structure for pile foundations of offshore wind turbines. Background Art

[0002] A wind turbine is an electrical device that converts wind energy into mechanical work, which drives the rotor to rotate and ultimately outputs alternating current. A wind turbine generally consists of components such as a wind wheel, a generator, a direction regulator, a tower, a speed limit safety mechanism and an energy storage device.

[0003] By setting up offshore wind turbine pile foundations in coastal areas, people can use green energy in coastal areas. When the existing technology is used, certain protective measures are required. The common anti-scouring method is to protect with stones or sand blankets, but this method has poor stability and is easily washed away when used, causing the pile foundation to reach its service life prematurely. Therefore, we propose an offshore wind turbine pile foundation anti-scouring structure to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to solve the problem that in the prior art, certain protective measures need to be taken when in use. The common anti-scour method is to protect by throwing stones or sand, but this method has poor stability and is easily washed away when in use, causing the pile foundation to reach the service life prematurely. A kind of offshore wind turbine pile foundation anti-scour structure is proposed.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an offshore wind turbine pile foundation anti-scour structure, including a pile basic body, the top outer surface of the pile basic body is fixedly connected to a first natural rock layer, a first groove is opened at the top center of the pile basic body, second grooves are opened at the front and rear positions on both sides of the inner bottom of the first groove, a first concrete support column is slidably connected to the center of the inner surface wall of the second groove, second concrete support columns are fixedly connected at the front and rear positions on both sides of the bottom of the pile basic body, a concrete bottom plate is arranged at the inner bottom center of the first groove, and the pile body is fixedly connected at the top center of the concrete bottom plate.

[0006] Preferably, a second natural rock layer is provided on the top of the concrete bottom plate, and a steel wire mesh is slidably connected to the center of the outer surface of the second natural rock layer.

[0007] Preferably, fixing bolts are threadedly penetrated at front and rear positions on both sides of the outer surface of the wire mesh, and the bottom end surfaces of the fixing bolts are threadedly penetrated through the inner surfaces of the concrete bottom plate and the pile basic body.

[0008] Preferably, a threaded hole is provided on the outer surface of the wire mesh at the position of the fixing bolt, and the inner surface wall of the threaded hole is threadedly connected to the outer surface of the fixing bolt.

[0009] Preferably, a plurality of evenly distributed first lifting rings are fixedly connected to the outer surface of the pile body, and second lifting rings are fixedly connected to the centers of both sides of the top of the pile basic body.

[0010] Preferably, hooks are provided on the inner surfaces of the first hanging ring and the second hanging ring.

[0011] Preferably, a steel wire rope is provided at the center of the outer surface of the hook.

[0012] Compared with the prior art, the advantages and positive effects of the utility model are:

[0013] 1. In the utility model, during actual use, the first concrete support column and the second concrete support column will be fixed to the seabed rock layer to make it more stable, and the first natural rock layer is arranged in an inclined shape, so that it can become a slope protection structure, thereby reducing the impact of waves on the pile basic body, and through the arrangement of the first lifting ring, the second lifting ring, the hook and the wire rope, the pile body can be towed to improve the windproof effect, and the first lifting ring is provided with multiple, so the appropriate wire rope can be selected according to actual needs, so as to adjust according to different traction angles.

[0014] 2. In the utility model, by setting the fixing bolts, threaded holes and wire mesh, the second natural rock layer can be reinforced to prevent the riprap inside the second natural rock layer from being dispersed during use. When in use, the surface of the first natural rock layer and the pile basic body will be coated with a high-performance polymer coating, which can effectively protect the surfaces of both from seawater erosion and chemical corrosion, thereby improving the overall service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A three-dimensional structural schematic diagram of an offshore wind turbine pile foundation anti-scour structure is proposed for the utility model;

[0016] Figure 2 The utility model proposes an offshore wind turbine pile foundation anti-scouring structure Figure 1 Schematic diagram of the structure viewed from above;

[0017] Figure 3 It is a three-dimensional structural schematic diagram of a concrete base plate, a first groove and a pile body;

[0018] Figure 4 is a schematic diagram of the three-dimensional structure of the second groove;

[0019] Figure 5 for Figure 1Enlarged view of point A in the middle.

[0020] Legend: 1. Pile basic body; 2. First natural rock layer; 3. Second lifting ring; 4. Wire rope; 5. Wire mesh; 6. Hook; 7. First lifting ring; 8. First concrete support column; 9. Second concrete support column; 10. Pile body; 11. Second natural rock layer; 12. Concrete base plate; 13. First groove; 14. Second groove; 15. Fixing bolt; 16. Threaded hole. DETAILED DESCRIPTION

[0021] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0022] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0023] Embodiment 1, as Figure 1-Figure 5 As shown, an offshore wind turbine pile foundation anti-scour structure includes a pile basic body 1, a first natural rock layer 2 is fixedly connected to the top outer surface of the pile basic body 1, a first groove 13 is opened at the top center of the pile basic body 1, second grooves 14 are opened at the front and rear positions on both sides of the inner bottom of the first groove 13, a first concrete support column 8 is slidably connected to the center of the inner surface wall of the second groove 14, second concrete support columns 9 are fixedly connected to the front and rear positions on both sides of the bottom of the pile basic body 1, a concrete bottom plate 12 is arranged at the inner bottom center of the first groove 13, and a pile body 10 is fixedly connected to the top center of the concrete bottom plate 12.

[0024] The effect achieved by the entire embodiment 1 is that, in actual use, the first concrete support column 8 and the second concrete support column 9 will first be fixed to the seabed rock layer to improve the overall stability. Figure 1 As shown, the first natural rock layer 2 is arranged in an inclined shape, so that a slope protection structure can be formed, which can spread and dissipate the energy of seawater and reduce the impact force on the pile base body 1. When in use, the pile base body 1 and the first natural rock layer 2 will be coated with a high-performance polymer coating. The coating has good corrosion resistance and waterproof properties, and can effectively protect the surface of the pile base body 1 and the first natural rock layer 2 from erosion and chemical corrosion by seawater.

[0025] Embodiment 2, as Figure 1-Figure 5As shown, a second natural rock layer 11 is arranged on the top of the concrete base plate 12, a steel mesh 5 is slidably connected at the center of the outer surface of the second natural rock layer 11, fixing bolts 15 are threadedly penetrated at the front and rear positions on both sides of the outer surface of the steel mesh 5, and the bottom end surface of the fixing bolt 15 is threadedly penetrated through the concrete base plate 12 and the inner surface of the pile basic body 1, and a threaded hole 16 is opened on the outer surface of the steel mesh 5 at the position of the fixing bolt 15, and the inner surface wall of the threaded hole 16 is threadedly connected to the outer surface of the fixing bolt 15, and a plurality of evenly distributed first lifting rings 7 are fixedly connected to the outer surface of the pile body 10, and second lifting rings 3 are fixedly connected at the center of both sides of the top of the pile basic body 1, and hooks 6 are arranged on the inner surfaces of the first lifting ring 7 and the second lifting ring 3, and a steel wire rope 4 is arranged at the center of the outer surface of the hook 6.

[0026] The effect achieved by the entire embodiment 2 is that, through the mutual cooperation of the wire mesh 5, the fixing bolts 15 and the threaded holes 16, the second natural rock layer 11 can be fixed to prevent the internal riprap from being dispersed during use, and through the mutual cooperation of the first lifting ring 7, the second lifting ring 3, the hook 6 and the wire rope 4, the pile body 10 can be towed to improve the waterproof effect. At the same time, in the actual use process, the user can select a suitable wire rope 4 according to the traction angle actually required.

[0027] Working principle: When in use, the user first puts the first concrete support column 8 into the second groove 14 to complete the engagement, then the first concrete support column 8 and the second concrete support column 9 will be fixed to the seabed rock layer, and after being put in, the concrete bottom plate 12 can be placed in the second groove 14, and the pile body 10 is cast and formed integrally with the concrete bottom plate 12. After placement, the second natural rock layer 11 can be evenly placed around the pile body 10 and on the concrete bottom plate 12. After placement, the wire mesh 5 is covered Insert it above the second natural rock layer 11, screw the fixing bolt 15 into the corresponding threaded hole 16, and screw it into the inside of the pile basic body 1 and the concrete base plate 12. After screwing in, the wire mesh 5 is fixed to prevent the subsequent riprap inside the second natural rock layer 11 from being dispersed. Then the user selects a suitable wire rope 4 according to actual needs. After selection, hang the hook 6 into a suitable first lifting ring 7, and then hang the hook 6 at the other end into the second lifting ring 3, so that the pile body 10 can be towed.

[0028] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. An offshore wind turbine pile foundation anti-scour structure, comprising a pile foundation body (1), characterized in that: The top outer surface of the pile basic body (1) is fixedly connected to a first natural rock layer (2); a first groove (13) is provided at the center of the top of the pile basic body (1); second grooves (14) are provided at the front and rear positions on both sides of the inner bottom of the first groove (13); a first concrete support column (8) is slidably connected to the center of the inner surface wall of the second groove (14); second concrete support columns (9) are fixedly connected to the front and rear positions on both sides of the bottom of the pile basic body (1); a concrete bottom plate (12) is provided at the center of the inner bottom of the first groove (13); and a pile body (10) is fixedly connected to the top center of the concrete bottom plate (12).

2. The offshore wind turbine pile foundation anti-scour structure according to claim 1, characterized in that: A second natural rock layer (11) is arranged on the top of the concrete bottom plate (12), and a steel wire mesh (5) is slidably connected to the center of the outer surface of the second natural rock layer (11).

3. The offshore wind turbine pile foundation anti-scour structure according to claim 2, characterized in that: Fixing bolts (15) are threadedly penetrated at the front and rear positions on both sides of the outer surface of the wire mesh (5), and the bottom end surfaces of the fixing bolts (15) are threadedly penetrated through the concrete bottom plate (12) and the inner surface of the pile basic body (1).

4. The offshore wind turbine pile foundation anti-scour structure according to claim 3, characterized in that: A threaded hole (16) is provided on the outer surface of the wire mesh (5) at the position of the fixing bolt (15), and the inner surface wall of the threaded hole (16) is threadedly connected to the outer surface of the fixing bolt (15).

5. The offshore wind turbine pile foundation anti-scour structure according to claim 1, characterized in that: The outer surface of the pile body (10) is fixedly connected with a plurality of evenly distributed first suspension rings (7), and the centers of both sides of the top of the pile basic body (1) are fixedly connected with second suspension rings (3).

6. The offshore wind turbine pile foundation anti-scour structure according to claim 5, characterized in that: The inner surfaces of the first hanging ring (7) and the second hanging ring (3) are provided with hooks (6).

7. The offshore wind turbine pile foundation anti-scour structure according to claim 6, characterized in that: A steel wire rope (4) is arranged at the center of the outer surface of the hook (6).

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