Anti-corrosion structure for tower drum of wind driven generator

Abstract

The utility model provides an anti-corrosion structure for a tower drum of a wind driven generator, which relates to the technical field of anti-corrosion structures and comprises an upper tower drum and a lower tower drum. The anti-corrosion mechanism comprises an upper fixing plate fixedly connected to the inner wall of the upper tower barrel, a lower fixing plate fixedly connected to the inner wall of the lower tower barrel and a movable barrel, the inner wall of the upper fixing plate is sleeved with a set of movable columns, and the top end of each movable column is fixedly connected with a handle. According to the anti-corrosion structure for the tower drum of the wind driven generator, through cooperative arrangement of the upper tower drum, the lower tower drum and the anti-corrosion mechanism, the annular drying box body can be fixed without adopting a welding mode, so that people can conveniently replace a drying agent in the annular drying box body; and more time and labor are saved when people replace the drying agent, and the working efficiency of workers is further improved.

Description

Technical Field

[0001] The utility model relates to an anti-corrosion structure, in particular to an anti-corrosion structure for a wind turbine tower, belonging to the technical field of anti-corrosion structures. Background Art

[0002] A wind turbine tower is a tower pole for wind power generation. It mainly plays a supporting role in a wind turbine generator set and absorbs the vibration of the unit. Multiple tower groups are usually connected inside the tower with bolts. Due to the influence of the external environment of the wind turbine generator set, the connecting bolts are easily corroded, resulting in an unstable connection.

[0003] A wind turbine tower anti-corrosion structure disclosed in the Chinese patent application disclosure CN220539760U has a drying box welded on the inner wall of the upper tower and the lower tower, and a sealed inner shell is plug-connected to the inner wall of the drying box, and guide plates are provided on both sides of the sealed inner shell, a sealing ring is embedded and connected to the inner wall of the sealed inner shell, a motor bolt is fixed to the upper end of the sealed inner shell, and a gear is plug-connected to one end of the motor. By improving the wind turbine tower anti-corrosion structure, it has the advantages of reasonable structural design, sealing the bolts in the tower, and keeping the sealed cavity dry.

[0004] However, there are certain deficiencies in the technical solution of the above-mentioned comparative document. Since the desiccant is used in the drying box for dehumidification in the above-mentioned comparative document, the sealed environment is kept in a relatively dry state. However, in real life, we know that after the desiccant has been used for a period of time, its dehumidification effect will decrease due to saturation. Therefore, the staff needs to replace the desiccant inside it after it has been used for a period of time. However, in the technical solution of the above-mentioned comparative document, since the drying box is fixed by welding, it is difficult for people to replace the desiccant inside it, which not only makes people time-consuming and laborious when replacing the desiccant, but also reduces the work efficiency of the staff. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] The purpose of the utility model is to provide a wind turbine tower anti-corrosion structure in order to solve the above problems, so as to solve the problem that it is difficult for workers to replace the desiccant in the drying box.

[0007] (II) Technical solution

[0008] The utility model is realized by the following technical scheme: a wind turbine tower anti-corrosion structure, comprising an upper tower and a lower tower, wherein an anti-corrosion mechanism is arranged inside the upper tower, and the anti-corrosion mechanism comprises an upper fixing plate fixedly connected to the inner wall of the upper tower, a lower fixing plate fixedly connected to the inner wall of the lower tower, and a movable cylinder;

[0009] A group of movable columns are sleeved on the inner wall of the upper fixed plate, a handle is fixedly connected to the top of each movable column, and a spring is sleeved on the outer surface of each movable column;

[0010] The bottom end of each movable column is fixedly connected to a limiting pad, the bottom surface of the upper fixed plate is provided with an annular drying box body, and the outer surface of the movable cylinder is fixedly connected to a threaded block.

[0011] Specifically, the output end of the forward and reverse motor is fixedly connected with a threaded rod, the threaded rod extends to the bottom of the lower fixed plate and is rotatably connected to the lower fixed plate, the threaded rod passes through the guide groove and is rotatably connected to the guide groove, the threaded block is threadedly connected to the outer surface of the threaded rod, and the threaded block is slidably connected to the inner wall of the guide groove. The rotation of the threaded rod can drive the threaded block to move upward or downward, thereby driving the movable cylinder to move upward or downward.

[0012] Specifically, the inner wall of the upper tower tube is fixedly connected with flange plate 1, and the inner wall of the lower tower tube is fixedly connected with flange plate 2. Flange plate 1 and flange plate 2 are connected by bolts. Flange plate 1 and flange plate 2 can be fixed by using bolts, thereby achieving fixation of the upper tower tube and the lower tower tube. The sealed space formed by the upper fixed plate, the lower fixed plate and the movable tube can place the bolts in a relatively dry environment under the action of the desiccant filled in the annular drying box body, thereby achieving anti-corrosion protection for the bolts.

[0013] Furthermore, the upper tower is matched with the lower tower, and the outer surface of the annular drying box body is provided with reserved holes arranged at equal distances. Under the action of the desiccant inside the annular drying box body, the moisture in the sealed space can be absorbed through the reserved holes opened on the outer surface of the annular drying box body.

[0014] Furthermore, each of the springs is fixedly connected to the upper surface of the upper fixed plate, the movable cylinder is sleeved on the inner walls of the upper fixed plate and the lower fixed plate, the movable cylinder can be in contact between the upper fixed plate and the lower fixed plate, and the inner circles of the upper fixed plate and the lower fixed plate are both provided with sealing gaskets, so that the sealing space formed by the upper fixed plate, the lower fixed plate and the movable cylinder has better sealing performance.

[0015] The utility model provides a wind turbine tower anti-corrosion structure, which has the following beneficial effects:

[0016] 1. The wind turbine tower anti-corrosion structure can fix the annular drying box body without welding through the coordination between the upper tower, the lower tower and the anti-corrosion mechanism, so that it is more convenient for people to replace the desiccant in the annular drying box body, which not only saves time and effort when replacing the desiccant, but also further improves the work efficiency of the staff.

[0017] 2. The wind turbine tower anti-corrosion structure can make it easier for people to replace the desiccant in the annular drying box body through the coordinated arrangement of the handle, the movable column, the limit pad and the annular drying box body. People only need to press the handle, and the movable column will move downward as the handle moves downward until the limit pad is no longer in contact with the bottom surface of the annular drying box body, and then the handle is rotated to drive the limit pad to rotate, so as to release the limit on the annular drying box body, thereby removing the annular drying box body and replacing the desiccant inside it by opening the cover at the bottom. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a front view schematic diagram of the three-dimensional structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the three-dimensional structure of the utility model;

[0020] Figure 3 It is a schematic diagram of the internal structure of the upper tower and the lower tower of the utility model;

[0021] Figure 4 It is a schematic diagram of the three-dimensional structure explosion of the anti-corrosion mechanism of the utility model;

[0022] Figure 5 For this utility model Figure 4 Schematic diagram of the enlarged structure at point A in the middle.

[0023] Description of Reference Numerals

[0024] 1. Upper tower; 2. Lower tower;

[0025] 3. Anti-corrosion mechanism; 301. Upper fixed plate; 302. Lower fixed plate; 303. Movable column; 304. Handle; 305. Spring; 306. Limit pad; 307. Ring drying box; 308. Movable cylinder; 309. Thread block;

[0026] 4. Guide groove; 5. Forward and reverse motor; 6. Threaded rod; 7. Flange one; 8. Flange two. DETAILED DESCRIPTION

[0027] The utility model embodiment provides a wind turbine tower anti-corrosion structure.

[0028] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 , including an upper tower tube 1 and a lower tower tube 2, an anti-corrosion mechanism 3 is arranged inside the upper tower tube 1, and the anti-corrosion mechanism 3 includes an upper fixed plate 301 fixedly connected to the inner wall of the upper tower tube 1, a lower fixed plate 302 fixedly connected to the inner wall of the lower tower tube 2, and a movable tube 308, the upper fixed plate 301 can be supported by the upper tower tube 1, and the lower fixed plate 302 can be supported by the lower tower tube 2;

[0029] A group of movable columns 303 are sleeved on the inner wall of the upper fixed plate 301. The movable columns 303 penetrate the upper fixed plate 301 and can rotate or slide on the inner wall of the upper fixed plate 301. A handle 304 is fixedly connected to the top of each movable column 303. The handle 304 enables people to control the movable column 303 more conveniently. A spring 305 is sleeved on the outer surface of each movable column 303. The elastic coefficient of the spring 305 is slightly larger.

[0030] The bottom end of each movable column 303 is fixedly connected to a limit pad 306, and the bottom surface of the upper fixed plate 301 is provided with an annular drying box body 307. The bottom surface of the annular drying box body 307 is threadedly connected with a cover. When the desiccant inside it is replaced, the cover must be opened. The outer surface of the movable cylinder 308 is fixedly connected with a threaded block 309. As the movable column 303 moves or rotates, the limit pad 306 can be driven to move or rotate. The movement of the threaded block 309 can drive the movement of the movable cylinder 308. When the upper surface of the movable cylinder 308 is flush with the upper surface of the upper fixed plate 301, the bottom surface of the movable cylinder 308 is just flush with the bottom surface of the lower fixed plate 302. A closed space can be formed by the upper fixed plate 301, the movable cylinder 308 and the lower fixed plate 302.

[0031] Please pay attention to Figure 4 The output end of the forward and reverse motor 5 is fixedly connected with a threaded rod 6, which extends to the bottom of the lower fixed plate 302 and is rotatably connected to the lower fixed plate 302. The threaded rod 6 passes through the guide groove 4 and is rotatably connected to the guide groove 4. The threaded block 309 is threadedly connected to the outer surface of the threaded rod 6, and the threaded block 309 is slidably connected to the inner wall of the guide groove 4. The rotation of the threaded rod 6 can drive the threaded block 309 to move upward or downward, thereby driving the movable cylinder 308 to move upward or downward.

[0032] Please pay attention to Figure 3The inner wall of the upper tower tube 1 is fixedly connected with a flange 7, and the inner wall of the lower tower tube 2 is fixedly connected with a flange 2 8. The flange 1 7 and the flange 2 8 are connected by bolts. By using bolts, the flange 1 7 and the flange 2 8 can be fixed, thereby achieving the fixation of the upper tower tube 1 and the lower tower tube 2. The sealed space formed by the upper fixed plate 301, the lower fixed plate 302 and the movable tube 308, under the action of the desiccant filled in the annular drying box body 307, can make the bolts in a relatively dry environment, thereby achieving anti-corrosion protection for the bolts.

[0033] Please pay attention to Figure 4 The upper tower 1 is matched with the lower tower 2, and the outer surface of the annular drying box body 307 is provided with reserved holes arranged at equal distances. Under the action of the desiccant inside the annular drying box body 307, the reserved holes opened on the outer surface of the annular drying box body 307 can absorb moisture in the sealed space.

[0034] Please pay attention to Figure 4 Each spring 305 is fixedly connected to the upper surface of the upper fixed plate 301, and the movable cylinder 308 is sleeved on the inner walls of the upper fixed plate 301 and the lower fixed plate 302. The movable cylinder 308 can be in contact between the upper fixed plate 301 and the lower fixed plate 302, and the inner circles of the upper fixed plate 301 and the lower fixed plate 302 are both provided with sealing gaskets, so that the sealing space formed by the upper fixed plate 301, the lower fixed plate 302 and the movable cylinder 308 has better sealing performance.

[0035] When the utility model is in use: by starting the forward and reverse motor 5 to drive the rotation of the threaded rod 6, the threaded block 309 is driven to move. With the movement of the threaded block 309, the movable cylinder 308 can be driven to move until the upper surface of the movable cylinder 308 is flush with the upper surface of the upper fixed plate 301, until a relatively closed space is formed by the upper fixed plate 301, the lower fixed plate 302 and the movable cylinder 308. At this time, under the action of the desiccant in the annular drying box body 307, the closed space is relatively dry, thereby realizing the anti-corrosion protection of the screws used for connecting the flange 1 7 and the flange 2 8. When it is necessary to replace the desiccant in the annular drying box body 307, people only need to start the forward and reverse motor 5 again. Then, the movable cylinder 308 is driven to move downward, and then the handle 304 is pressed, and the movable column 303 is driven to move downward as the handle 304 moves downward, until the limit pad 306 is no longer in contact with the bottom surface of the annular drying box body 307, and then the handle 304 is rotated to drive the limit pad 306 to rotate, so as to release the limit on the annular drying box body 307, so that the annular drying box body 307 can be removed, and the desiccant inside it can be replaced by opening the cover at the bottom, so that people can replace the desiccant in the annular drying box body 307 more conveniently, which not only saves time and effort when replacing the desiccant, but also further improves the work efficiency of the staff.

[0036] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A wind turbine tower anti-corrosion structure, comprising an upper tower (1) and a lower tower (2), characterized in that: An anti-corrosion mechanism (3) is provided inside the upper tower (1), and the anti-corrosion mechanism (3) comprises an upper fixing plate (301) fixedly connected to the inner wall of the upper tower (1), a lower fixing plate (302) fixedly connected to the inner wall of the lower tower (2), and a movable cylinder (308); A group of movable columns (303) are sleeved on the inner wall of the upper fixed plate (301), a handle (304) is fixedly connected to the top of each movable column (303), and a spring (305) is sleeved on the outer surface of each movable column (303); The bottom end of each movable column (303) is fixedly connected to a limiting pad (306), the bottom surface of the upper fixed plate (301) is provided with an annular drying box body (307), and the outer surface of the movable cylinder (308) is fixedly connected to a threaded block (309).

2. The wind turbine tower anti-corrosion structure according to claim 1, characterized in that: The output end of the forward and reverse motor (5) is fixedly connected to a threaded rod (6), the threaded rod (6) extends to the bottom of the lower fixed plate (302) and is rotatably connected to the lower fixed plate (302), the threaded rod (6) passes through the guide groove (4) and is rotatably connected to the guide groove (4), the threaded block (309) is threadedly connected to the outer surface of the threaded rod (6), and the threaded block (309) is slidably connected to the inner wall of the guide groove (4).

3. The wind turbine tower anti-corrosion structure according to claim 1, characterized in that: The inner wall of the upper tower (1) is fixedly connected with a flange plate 1 (7), and the inner wall of the lower tower (2) is fixedly connected with a flange plate 2 (8), and the flange plate 1 (7) and the flange plate 2 (8) are connected by bolts.

4. The wind turbine tower anti-corrosion structure according to claim 1, characterized in that: The upper tower (1) is matched with the lower tower (2), and the outer surface of the annular drying box body (307) is provided with reserved holes arranged at equal distances.

5. The wind turbine tower anti-corrosion structure according to claim 1, characterized in that: Each of the springs (305) is fixedly connected to the upper surface of the upper fixed plate (301), and the movable cylinder (308) is sleeved on the inner walls of the upper fixed plate (301) and the lower fixed plate (302).

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