Split offshore wind turbine jacket structure

Abstract

The utility model relates to the field of fan jackets, and discloses a split type offshore fan jacket structure which comprises a first jacket, a second jacket is arranged on the lower portion of the first jacket, and a plurality of grouting sleeves are fixedly connected to the upper portion of the second jacket. The portion between the grouting sleeve and the lower portion of the first guide pipe frame is filled with slurry, the lower portion of the first guide pipe frame is fixedly connected with a plurality of connecting rods, the connecting rods are movably connected with the grouting sleeve, the top of the grouting sleeve is fixedly connected with a fixing ring, and the lower portion of the inner wall of the grouting sleeve is fixedly connected with a supporting ring. A sealing ring is arranged above the supporting ring and fixedly connected with the grouting sleeve. According to the utility model, the first jacket, the second jacket, the grouting sleeve and the slurry are matched with one another, so that the splicing and mounting stability and firmness of the jackets can be effectively ensured, the mounting stability of the offshore wind turbine can be ensured, and the offshore wind turbine is more practical.

Description

Technical Field

[0001] This utility model relates to the field of wind turbine jackets, and in particular to a split-type offshore wind turbine jacket structure. Background Technology

[0002] Offshore wind turbine jackets, also known as jacket structures or guide frames, are an important structural component supporting offshore wind turbines. They are typically used to transfer the weight of the wind turbine to the seabed and to support the turbine.

[0003] A search revealed Chinese Patent Publication No. CN217580052U, which discloses a segmented, modular jacket structure. The jacket is divided into an upper jacket structure and a lower jacket structure, which are connected and fixed together via a guiding traction device and a guiding docking structure. This utility model jacket structure features a simple construction, reliable splicing, strong connection, easy construction, and quick installation. It enables precise segmented splicing and installation of high jacket foundations, making it suitable for deeper sea areas. Furthermore, it eliminates the need for large lifting equipment, effectively saving construction costs and providing a solution for my country's offshore wind power development towards deeper waters.

[0004] Although the aforementioned device enables the segmented splicing of the jacket structure through the cooperation of components such as the docking guide mechanism and the fastening mechanism, the large size of the wind turbine duct and its installation in the sea place high demands on the structural stability. The current structure relies solely on spring pulleys, guide rings, and cylindrical open components to splice and fix the two jacket foundation segments, resulting in poor connection stability and impracticality. Therefore, a split-type offshore wind turbine jacket structure is proposed to solve the above problems. Summary of the Invention

[0005] To overcome the above shortcomings, this utility model provides a split-type offshore wind turbine jacket structure, which aims to improve the problem that the existing technology has poor connection stability due to the large volume of the wind turbine jacket and the fact that the structure only relies on spring fixed pulleys, guide rings and cylindrical open components to splice and fix the two jacket foundation sections.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a split-type offshore wind turbine jacket structure, comprising a first jacket, a second jacket disposed at the lower part of the first jacket, a plurality of grouting sleeves fixedly connected to the upper part of the second jacket, grout filling the space between the grouting sleeves and the lower part of the first jacket, and a plurality of connecting rods fixedly connected to the lower part of the first jacket, the connecting rods being movably connected to the grouting sleeves.

[0007] As a further description of the above technical solution:

[0008] A fixing ring is fixedly connected to the top of the grouting sleeve.

[0009] As a further description of the above technical solution:

[0010] A support ring is fixedly connected to the lower part of the inner wall of the grouting sleeve.

[0011] As a further description of the above technical solution:

[0012] A sealing ring is provided above the support ring, and the sealing ring is fixedly connected to the grouting sleeve.

[0013] As a further description of the above technical solution:

[0014] A limiting ring is fixedly connected to the upper part of the outer wall of the connecting rod, and the limiting ring is movably connected to the fixed ring.

[0015] As a further description of the above technical solution:

[0016] A slurry-blocking ring is fixedly connected to the lower part of the outer wall of the connecting rod.

[0017] As a further description of the above technical solution:

[0018] A mounting base is fixedly connected to the top of the first guide frame.

[0019] As a further description of the above technical solution:

[0020] The bottom of the second guide frame is fixedly connected with multiple support legs.

[0021] This utility model has the following beneficial effects:

[0022] 1. This utility model, through the mutual cooperation between the first guide frame, the second guide frame, the grouting sleeve, and the grout, can effectively ensure the stability and firmness of the guide frame splicing installation, thereby ensuring the stability of the offshore wind turbine installation and making it more practical;

[0023] 2. This utility model, through the mutual cooperation between the grouting sleeve, connecting rod, limiting ring, grout blocking ring, and grout, can effectively ensure the sealing after grouting, effectively reduce grout leakage, and is more practical. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a split-type offshore wind turbine jacket structure proposed in this utility model;

[0025] Figure 2 This is a three-dimensional structural diagram of a split-type offshore wind turbine jacket structure proposed in this utility model;

[0026] Figure 3 This is a partial cross-sectional three-dimensional structural diagram of the grouting sleeve of a split-type offshore wind turbine jacket structure proposed in this utility model.

[0027] Figure 4 This is an enlarged three-dimensional structural diagram of point A of a split-type offshore wind turbine jacket structure proposed in this utility model.

[0028] Legend:

[0029] 1. First guide frame; 2. Second guide frame; 3. Grouting sleeve; 4. Grout; 11. Connecting rod; 12. Limiting ring; 13. Grout blocking ring; 14. Mounting seat; 31. Fixing ring; 32. Support ring; 33. Sealing ring; 21. Support leg. Detailed Implementation

[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0031] Reference Figure 1 - Figure 2 This utility model provides an embodiment of a split-type offshore wind turbine jacket structure, including a first jacket 1, which can be spliced ​​with a second jacket 2 to form a wind turbine jacket. The second jacket 2 is provided at the lower part of the first jacket 1 to support the first jacket 1. Multiple support legs 21 are fixedly connected to the bottom of the second jacket 2 for fixing and supporting the second jacket 2. Multiple grouting sleeves 3 are fixedly connected to the upper part of the second jacket 2 for grouting and fixing between the first jacket 1 and the second jacket 2. Grout 4 is filled between the grouting sleeve 3 and the lower part of the first jacket 1 to fill the grouting sleeve 3. After the grout 4 dries, it can completely fix the first jacket 1 and the second jacket 2. Multiple connecting rods 11 are fixedly connected to the lower part of the first jacket 1 for fixing between the first jacket 1 and the grouting sleeve 3. The connecting rods 11 are movably connected to the grouting sleeve 3. A grouting pipe is provided in the middle of the connecting rod 11 for grouting the grouting sleeve 3.

[0032] like Figure 3 - Figure 4As shown, a fixing ring 31 is fixedly connected to the top of the grouting sleeve 3, which is used to fix the connecting rod 11. A support ring 32 is fixedly connected to the lower part of the inner wall of the grouting sleeve 3, which is used to support the grout-blocking ring 13. A sealing ring 33 is provided above the support ring 32. It can be made of a material with sealing properties such as rubber and can produce a certain degree of deformation. The sealing ring 33 is fixedly connected to the grouting sleeve 3. The grout-blocking ring 13 can be stuck between the sealing ring 33 and the support ring 32. Under the gravity of the grout 4, the sealing ring 33 will press the grout-blocking ring 13 tightly. If the grout-blocking ring 13 cannot pass through the sealing ring 33, it can also be placed on the upper part of the sealing ring 33. Under the gravity of the grout 4, the sealing ring 33 will be pressed towards the support ring 32.

[0033] Furthermore, a limiting ring 12 is fixedly connected to the upper part of the outer wall of the connecting rod 11, which is used to cooperate with the connection and limiting of the connecting rod 11. The limiting ring 12 is movably connected to the fixing ring 31. A slurry blocking ring 13 is fixedly connected to the lower part of the outer wall of the connecting rod 11. It has a certain deformation capability and is used to cooperate with the sealing operation of the sealing ring 33 to improve the sealing effect of the sealing ring 33. A mounting base 14 is fixedly connected to the top of the first guide frame 1, which is used to cooperate with the installation of the offshore wind turbine.

[0034] Working principle: In use, firstly, the second guide frame 2 is hoisted to the position where the guide frame needs to be installed and fixed, and the support legs 21 at the bottom of the second guide frame 2 are fixed. Then, the first guide frame 1 is hoisted using the hoisting mechanism, so that the connecting rod 11 at the bottom can be connected and installed one by one with the multiple grouting sleeves 3 on the second guide frame 2. When the connecting rod 11 is inserted into the grouting sleeve 3, as the connecting rod 11 moves downward, the limiting ring 12 and the grout-blocking ring 13 fixed with it will be driven downward. When the grout-blocking ring 13 moves to the bottom, the limiting ring 12 and the grout-blocking ring 13 will be driven downward. When the support ring 32 is in position, under the force of the downward movement of the connecting rod 11, the slurry blocking ring 13 and the support ring 32 will deform accordingly. When the connecting rod 11 drives the limiting ring 12 to abut against the fixing ring 31, the slurry blocking ring 13 will pass through the support ring 32 and be stuck between the support ring 32 and the sealing ring 33. Then the slurry 4 can be injected into the grouting sleeve 3 to fix and reinforce the first guide frame 1 and the second guide frame 2. After the first guide frame 1 and the second guide frame 2 are installed and fixed, the offshore wind turbine can be installed on the mounting base 14.

Claims

1. A split-type offshore wind turbine jacket structure, comprising a first jacket (1), characterized in that: The lower part of the first guide frame (1) is provided with a second guide frame (2), and the upper part of the second guide frame (2) is fixedly connected with a grouting sleeve (3) and there are multiple grouting sleeves (3). Grout (4) is filled between the grouting sleeve (3) and the lower part of the first guide frame (1). The lower part of the first guide frame (1) is fixedly connected with a connecting rod (11) and there are multiple connecting rods (11). The connecting rod (11) is movably connected to the grouting sleeve (3). A fixing ring (31) is fixedly connected to the top of the grouting sleeve (3), a support ring (32) is fixedly connected to the lower part of the inner wall of the grouting sleeve (3), a sealing ring (33) is provided above the support ring (32), and the sealing ring (33) is fixedly connected to the grouting sleeve (3). A limiting ring (12) is fixedly connected to the upper part of the outer wall of the connecting rod (11), and the limiting ring (12) is movably connected to the fixing ring (31). A slurry-blocking ring (13) is fixedly connected to the lower part of the outer wall of the connecting rod (11).

2. The split-type offshore wind turbine jacket structure according to claim 1, characterized in that: The top of the first guide frame (1) is fixedly connected to a mounting base (14).

3. The split-type offshore wind turbine jacket structure according to claim 1, characterized in that: The bottom of the second guide frame (2) is fixedly connected with multiple support legs (21).

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