Anti-corrosion device of large offshore wind turbine generator

Abstract

The utility model discloses an anti-corrosion device of a large-scale offshore wind turbine generator, belongs to the related technical field of wind power generation equipment, and aims to solve the problem that in the prior art, a front semicircular plate or a rear semicircular plate needs to be integrally detached for replacement, and the maintenance efficiency is low to a certain extent. The two sets of first arc-shaped plates are attached to the outer wall of the tower column, bolts are screwed into the third block body, the two sets of first arc-shaped plates are fixed together, the first block body at one end of each second arc-shaped plate is inserted into the first groove body, the first arc-shaped plates and the second arc-shaped plates are assembled together, the bolts are screwed into the third block body, and the two sets of second arc-shaped plates are fixed together; the operation is repeated to assemble the third arc-shaped plate, the second arc-shaped plate and the first arc-shaped plate together, if the first arc-shaped plate, the second arc-shaped plate or the third arc-shaped plate is damaged, only the corresponding bolts need to be screwed out, limitation is eliminated, and the first arc-shaped plate, the second arc-shaped plate or the third arc-shaped plate needs to be pulled out and replaced, the whole device does not need to be disassembled, and the maintenance efficiency is improved to a certain degree.

Description

Technical Field

[0001] This utility model belongs to the technical field of wind power generation equipment, and more specifically, it relates to an anti-corrosion device for large offshore wind turbines. Background Technology

[0002] Large offshore wind turbines capture wind energy through their rotors. The rotors rotate under the influence of wind, driving a low-speed shaft connected to the hub. After being accelerated by a gearbox, the high-speed shaft drives a generator, converting wind energy into mechanical energy. The generator then converts this mechanical energy into electrical energy. The generated electricity is transmitted via submarine cables to an onshore substation, where it is stepped up and fed into the power grid to provide electricity to society.

[0003] The existing announcement number is CN217582382U, which discloses a corrosion-resistant protective device for offshore wind power generation equipment. The protective device includes at least a tower column. A work platform is fixedly installed on the outer wall of the tower column. A front half-ring is provided above the work platform, and a rear half-ring is provided on the other side of the front half-ring. A second tower cavity is formed in the inner wall of both the front and rear half-rings. The front and rear half-rings are fitted onto the outer wall of the tower column. A front semi-circular plate is provided above the front half-ring, and a rear semi-circular plate is provided on the other side of the front semi-circular plate. A first tower cavity is formed in the inner wall of both the front and rear semi-circular plates. This device solves the problem of seawater splashing onto the tower column surface and corroding it during use, thus extending the service life of the offshore wind power generation equipment.

[0004] While the aforementioned issues can prevent seawater corrosion of the tower column by fitting the front and rear semicircular plates onto the outer wall of the tower column, both of these are integral structures. If either the front or rear semicircular plate is damaged due to factors such as seawater impact, it needs to be completely disassembled and replaced, resulting in relatively low maintenance efficiency. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides an anti-corrosion device for large offshore wind turbines, which solves the technical problem that in existing technologies, when the front or rear semicircular plate is damaged by factors such as seawater impact, it is necessary to completely disassemble and replace the front or rear semicircular plate, resulting in relatively low maintenance efficiency.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a corrosion protection device for a large offshore wind turbine, comprising two sets of arc-shaped plates, the two sets of arc-shaped plates being placed together, an arc-shaped plate being placed at one end of each of the two sets of arc-shaped plates, the two sets of arc-shaped plates being placed together, an arc-shaped plate being placed at one end of each of the two sets of arc-shaped plates, and two sets of arc-shaped plates being placed together. A groove is formed at one end of each of the two sets of arc-shaped plates and the two sets of arc-shaped plates. Each of the two sets of arc-shaped plates has a block 1 connected to one end. The blocks 1 of each set are slidably connected to the corresponding grooves. Some of the arc-shaped plates 1, some of the arc-shaped plates 2, and some of the arc-shaped plates 3 have blocks 2 connected to one end and the other end. Some of the arc-shaped plates 1, some of the arc-shaped plates 2, and some of the arc-shaped plates 3 have blocks 3 connected to one end and the other end. One end of each of the blocks 2 of each set is threaded with a bolt. The bolts of each set are threadedly connected to the threaded holes opened on the corresponding blocks 3.

[0007] As a preferred technical solution of this utility model, some of the arc-shaped plates one, two, and three are connected to a block four at one end and the other end, and some of the arc-shaped plates one, two, and three are connected to a block five at one end and the other end, and a column is connected to one end of each of the multiple sets of blocks five, and the multiple sets of columns are slidably connected to through holes opened on the corresponding blocks four.

[0008] As a preferred embodiment of this utility model, a knob is connected to one end of each of the multiple sets of bolts.

[0009] As a preferred technical solution of this utility model, the inner walls of the two sets of arc-shaped plates one, the two sets of arc-shaped plates two, and the two sets of arc-shaped plates three are all connected with rubber pads one.

[0010] As a preferred technical solution of this utility model, grooves are provided at one end and the other end of the inner walls of the two sets of arc-shaped plates, the two sets of arc-shaped plates, and the multiple sets of grooves are bonded with rubber pads.

[0011] As a preferred technical solution of this utility model, rubber pads are adhered to the joints where the two sets of arc-shaped plates 1 and the corresponding arc-shaped plates 2 are respectively attached, and the joints where the two sets of arc-shaped plates 2 and the corresponding arc-shaped plates 3 are respectively attached.

[0012] This utility model provides an anti-corrosion device for large offshore wind turbine units, which has the following beneficial effects:

[0013] 1. This new type of device uses bolts, groove 1, and block 1 to fit two sets of arc-shaped plates 1 against the outer wall of the tower column. Bolts are screwed into block 3 to fix the two sets of arc-shaped plates 1 together. One end of block 1 of arc-shaped plate 2 is inserted into groove 1 to assemble arc-shaped plate 1 and arc-shaped plate 2 together. Bolts are screwed into block 3 to fix the two sets of arc-shaped plates 2 together. The above operation is repeated to assemble arc-shaped plate 3 with arc-shaped plate 2 and arc-shaped plate 1. If arc-shaped plate 1, arc-shaped plate 2, or arc-shaped plate 3 is damaged, simply unscrew the corresponding bolts, remove the restriction, and pull out and replace arc-shaped plate 1, arc-shaped plate 2, or arc-shaped plate 3. The entire device does not need to be disassembled, thus improving maintenance efficiency to a certain extent. Furthermore, arc-shaped plate 1, arc-shaped plate 2, and arc-shaped plate 3 adopt a modular design. In practical applications, wave heights vary significantly in different sea areas, with some areas experiencing higher wave heights, leading to more severe erosion of the tower column. At this point, the number of curved plates can be flexibly increased according to specific actual needs, specifically strengthening the protection of vulnerable parts of the tower column at higher elevations. This better meets the protection requirements of different marine environments, effectively resisting seawater erosion of the tower column and improving the applicability and versatility of the protective device to a certain extent.

[0014] 2. Through the cooperation between the column, arc-shaped plate one, and arc-shaped plate two, the column and block four form a guiding system, providing guidance for the installation process of arc-shaped plates one, two, and three. During the assembly of the protective device, this allows each arc-shaped plate to quickly find its correct position, reducing installation difficulty to some extent. This guiding design not only improves installation efficiency but also plays a role in positioning. When arc-shaped plates one, two, and three align along the trajectory determined by the column and block four, the threaded holes and bolts on the plates quickly correspond, avoiding errors caused by manual alignment and ensuring precise alignment of the threaded holes and bolts, thus guaranteeing the stability of bolt tightening to a certain extent. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 for Figure 1 Structural schematic diagram of the two curved plates, the first groove and the first block;

[0017] Figure 3 for Figure 1 Schematic diagram of the structure of the second middle tank, the second rubber pad, and the third rubber pad;

[0018] Figure 4 for Figure 1 Schematic diagram of the structure of block two, block three and bolts.

[0019] In the diagram: 1. Arc plate one; 2. Arc plate two; 3. Arc plate three; 4. Groove one; 5. Block one; 6. Block two; 7. Block three; 8. Bolt; 9. Knob; 10. Block four; 11. Block five; 12. Column; 13. Rubber pad one; 14. Groove two; 15. Rubber pad two; 16. Rubber pad three. Detailed Implementation

[0020] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0021] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] Please see Figures 1 to 4This utility model provides a technical solution: an anti-corrosion device for large offshore wind turbines, comprising two sets of arc-shaped plates 1, which are placed together. Arc-shaped plates 2 are attached to one end of each set of arc-shaped plates 1, and arc-shaped plates 3 are attached to one end of each set of arc-shaped plates 2. The materials of the arc-shaped plates 1, 2, and 3 can be copper-nickel alloy, which has good resistance to seawater corrosion and can effectively resist the erosion of chloride ions in seawater. Under long-term contact with seawater, the oxide film formed on the surface is relatively stable and can slow down the corrosion rate. The arc-shaped plates 1, 2, and 3 all adopt a modular design. These plates form a cylindrical shape that encloses the tower column, preventing seawater from impacting it and thus avoiding corrosion. If the area experiences high wave heights, more arc-shaped plates 2 can be installed to increase the protective area. This design offers broad applicability. Two sets of arc-shaped plates 3 are placed close together. Each set of arc-shaped plates 1 and 2 has a groove 4 at one end, and each set of arc-shaped plates 2 and 3 is connected to a block 5 at one end. By inserting block 5 into the corresponding groove 4, arc plate 1 can be connected to arc plate 2, and arc plate 2 can be connected to arc plate 3. Multiple sets of blocks 5 are slidably connected to the corresponding groove 4. Block 6 is connected to one end of some arc plate 1, some arc plate 2, and some arc plate 3. Block 7 is connected to one end of some arc plate 1, some arc plate 2, and some arc plate 3. Bolts 8 are threaded to one end of multiple sets of blocks 2 6. The spiral 8 can be made of titanium alloy, which has high strength and excellent corrosion resistance, even in harsh marine environments. Even under these conditions, good mechanical properties and fastening effect can be maintained. By screwing the bolts 8 into the corresponding block 3 7, two sets of arc plates 1, two sets of arc plates 2, or two sets of arc plates 3 can be connected together. Multiple sets of bolts 8 are respectively threaded into the threaded holes opened on the corresponding block 3 7. When arc plate 1, arc plate 2, or arc plate 3 is damaged, simply unscrew the corresponding bolts 8 to remove the restriction on arc plate 1, arc plate 2, or arc plate 3, remove the damaged part, and install a new one. Only the damaged part needs to be replaced, without disassembling the entire device, which improves maintenance efficiency to a certain extent.

[0024] Among them, some of the arc-shaped plates 1, 2, and 3 are connected to block 4 10 at one end and the other end; some of the arc-shaped plates 1, 2, and 3 are also connected to block 5 11 at one end and the other end; multiple sets of block 5 11 are connected to columns 12 at one end; multiple sets of columns 12 are slidably connected to through holes opened on the corresponding blocks 4 10. The columns 12 cooperate with the blocks 4 10 to provide guidance for the installation of the two sets of arc-shaped plates 1, 2 sets of arc-shaped plates 2, and 3 sets of arc-shaped plates 3, for example, for installation... When installing the arc plate 1, one set of arc plates 1 is attached to the outer wall of the tower column. The through holes opened on one end and the other end block 10 of the other set of arc plates 1 are aligned with the corresponding column 12, and moved along the column 12 until the two sets of arc plates 1 are attached. This completes the installation of the two sets of arc plates 1. At the same time, the alignment of the bolt 8 and the threaded hole is also facilitated by the guidance of the column 12 and the through hole. This avoids the problem of needing to frequently adjust the position to align the bolt 8 and the threaded hole due to manual operation to a certain extent, thus improving efficiency.

[0025] Among them, one end of each set of bolts 8 is connected to a knob 9, which makes it easier to rotate the bolts 8.

[0026] The inner walls of the two sets of arc-shaped plates 1, 2, and 3 are all connected to rubber pads 13. The rubber pads 13 are made of neoprene rubber, which has excellent seawater resistance, a stable molecular structure, and is not easily corroded by seawater. It maintains its elasticity and sealing performance even under long-term contact with seawater, effectively preventing seawater leakage. The rubber pads 13 act as a buffer and protector. During operation, the tower of an offshore wind turbine is subjected to vibrations from sea winds and waves. The rubber pads 13 can buffer the friction and collision between the arc-shaped plates 1, 2, and 3 and the tower, avoiding direct rigid contact and extending the service life of the tower to a certain extent.

[0027] Among them, the inner walls of the two sets of arc-shaped plates 1, 2, and 3 are all provided with grooves 14 at one end and the other end. Rubber pads 15 are adhered inside the multiple sets of grooves 14. The material of rubber pads 15 can be neoprene rubber. Neoprene rubber has good seawater resistance, its molecular structure is stable, it is not easily corroded by seawater, and it can maintain its elasticity and sealing performance in the long-term contact with seawater, effectively preventing seawater leakage. To a certain extent, it prevents seawater from seeping into and corroding the tower column from the connection of the two sets of arc-shaped plates 1, 2, and 3.

[0028] Rubber pads 16 are bonded to the joints of the two sets of arc-shaped plates 1 and 2, and to the joints of the two sets of arc-shaped plates 2 and 3. The rubber pads 16 can be made of neoprene rubber, which has good seawater resistance, stable molecular structure, and is not easily corroded by seawater. It can maintain its elasticity and sealing performance in long-term contact with seawater, effectively preventing seawater leakage and, to a certain extent, preventing seawater from seeping into and corroding the tower column from the joints of arc-shaped plates 1 and 2, and arc-shaped plates 2 and 3.

[0029] The specific usage and function of this embodiment are as follows:

[0030] When this utility model is in use, if the arc plate 1, arc plate 2, or arc plate 3 is damaged due to seawater impact or other factors, for example, if one set of arc plates 1 is damaged, the bolt 8 is unscrewed, the connection between the two sets of arc plates 1 is broken, the arc plate 1 is moved, and after moving a certain distance, the arc plate 1 is moved out, and one end block 4 10 of the new arc plate 1 is moved along the column 12 until the two sets of arc plates 1 are attached. The column 12 and the block 4 10 cooperate to provide guidance for the installation of the arc plate 1, which to a certain extent facilitates the alignment of the threaded hole with the bolt 8 and avoids errors in alignment caused by the workers during installation. To a certain extent, maintenance efficiency is improved. By screwing bolt 8 into block 3 7, the arc plate 1 can be fixed together without the need for overall disassembly. Only the damaged parts need to be replaced, which improves efficiency to a certain extent. If arc plate 2 or arc plate 3 is damaged, the above operation can be repeated. At the same time, arc plate 1, arc plate 2, and arc plate 3 all adopt a modular design. The appropriate number of arc plates 2 can be selected according to the actual situation. For example, if the wave height in the area is high, more arc plates 2 can be installed to avoid seawater contact with the tower column and thus prevent corrosion of the tower column. It has a wide range of applicability to a certain extent.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An anti-corrosion device for a large offshore wind turbine, characterized in that: The utility model provides a kind of arc plate, including two groups of arc plate one (1), two groups of the arc plate one (1) are placed, two groups of the arc plate one (1) one end are placed with arc plate two (2) adjoin, two groups of the arc plate two (2) are placed, two groups of the arc plate two (2) one end are placed with arc plate three (3) adjoin, two groups of the arc plate three (3) are placed, two groups of the arc plate one (1) and two groups of arc plate two (2) one end are set with groove one (4), two groups of the arc plate two (2) and two groups of arc plate three (3) one end are connected with block one (5), multiple block one (5) are slidably connected with corresponding groove one (4) respectively, part of the arc plate one (1), part arc plate two (2) and part arc plate three (3) one end and other end are connected with block two (6), part of the arc plate one (1), part arc plate two (2) and part arc plate three (3) one end and other end are connected with block three (7), multiple block two (6) one end are all screw thread connection bolt (8), multiple bolt (8) are threadedly connected with the threaded hole set on corresponding block three (7) respectively.

2. An anti-corrosion device for a large offshore wind turbine generator according to claim 1, characterized in that: Part of the arc plate one (1), part arc plate two (2) and part arc plate three (3) one end and other end are connected with block four (10), part of the arc plate one (1), part arc plate two (2) and part arc plate three (3) one end and other end are connected with block five (11), multiple block five (11) one end are connected with column (12), multiple column (12) are slidably connected with the through hole set on corresponding block four (10) respectively.

3. An anti-corrosion device for a large offshore wind turbine generator according to claim 1, characterized in that: Multiple bolt (8) one end are connected with knob (9).

4. An anti-corrosion device for a large offshore wind turbine generator according to claim 1, characterized in that: Two groups of the arc plate one (1), two groups of arc plate two (2) and two groups of arc plate three (3) inner wall are connected with rubber pad one (13).

5. An anti-corrosion device for a large offshore wind turbine generator according to claim 1, characterized in that: Two groups of the arc plate one (1), two groups of arc plate two (2) and two groups of arc plate three (3) inner wall one end and other end are set with groove two (14), multiple groove two (14) are adhered with rubber pad two (15) in.

6. An anti-corrosion device for a large offshore wind turbine generator according to claim 1, characterized in that: Two groups of the arc plate one (1) are adhered with rubber pad three (16) respectively with corresponding arc plate two (2) adjoin, two groups of arc plate two (2) are adhered with rubber pad three (16) respectively with corresponding arc plate three (3) adjoin.

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