A kind of offshore wind tower bottom corrosion-proof structure of jacket foundation

Abstract

The present application relates to the field of offshore wind power tower, especially a jacket foundation offshore wind power tower bottom corrosion prevention structure, which comprises a jacket, a device cylinder, a suction cylinder, a wind power pile, a guide rail ring and a rotating ring are arranged outside the device cylinder, a slide rod frame one and a mounting frame plate are arranged on the rotating ring, an adjusting plate is slidably arranged on the mounting frame plate, a clamping frame is connected to the adjusting plate through a slide rod frame two, a zinc block is arranged in the clamping frame, a clamping assembly is arranged on the clamping frame, a scraper is rotatably connected to the two sides of the mounting frame plate, a driving assembly one and a driving assembly two are arranged on the rotating ring, and a linkage assembly is arranged. The zinc block is electrochemically anticorrosive, the position of the zinc block can be adjusted through the driving assembly, the scraper is attached to the surface of the device cylinder to clean and scrape the attached matters through the linkage assembly, the zinc block is effectively attached, the anticorrosive effect is improved, and the later maintenance convenience is improved.

Description

Technical Field

[0001] This invention relates to the field of offshore wind turbine towers, and in particular to a corrosion-resistant structure for the bottom of an offshore wind turbine tower with a jacket foundation. Background Technology

[0002] Offshore wind turbine jackets are the key foundation structures supporting offshore wind turbine generators. Belonging to the steel truss system, they form a stable spatial frame by connecting multiple steel pipes (ducts) in a specific geometric configuration. This frame transfers the loads of the upper wind turbine tower, nacelle, and blades to the seabed while resisting complex external forces such as waves, currents, and wind loads in the marine environment. Their design must balance structural strength, adaptability to the marine environment, and economic efficiency, making them one of the mainstream foundation types for wind power projects in shallow to medium-deep waters (typically 10-50 meters deep).

[0003] Offshore wind turbine jackets must support the weight of the nacelle (including generator, gearbox, etc.), blades, and the structure itself (a single tower can weigh hundreds of tons), while resisting the horizontal thrust and alternating loads from strong winds, large waves, and tides. Therefore, the requirements for material strength and structural rigidity are extremely high. Long-term exposure to high humidity, high salt spray, seawater immersion (intertidal zone and underwater sections), ultraviolet radiation, and marine organism attachment requires excellent corrosion resistance, fatigue resistance, and anti-corrosion properties. Due to transportation and hoisting limitations, towers are typically prefabricated in sections (welded in a land-based factory) and then assembled on-site at sea via flange connections or welding. The length of a single section is designed based on the transportation vehicle (such as a barge) and the capacity of the hoisting equipment.

[0004] Existing offshore wind turbine jacket structures generally consist of a jacket partially submerged below the water surface and a suction tube completely submerged below the water surface and attached to the seabed. Wind turbine piles, nacelles, and blades are then installed on the portion of the jacket above the sea surface. However, due to seawater erosion, the jacket and the suction tube attached to the seabed are highly susceptible to rust and rot, which reduces their structural strength and leads to damage to the submerged portion of the jacket and the suction tube, endangering the normal operation of the power generation equipment.

[0005] Electrochemical corrosion prevention (also known as electrorust prevention or electrochemical anti-corrosion) is a technology that uses electrochemical principles to inhibit or prevent metal corrosion in electrolyte environments (such as seawater, damp soil, and industrial wastewater). Its core principle is to control the electrode potential on the metal surface to avoid or slow down the oxidation (anodic dissolution) process. The principle involves directly connecting (or via a wire) a metal or alloy with a lower electrode potential (more reactive) than the protected metal to the protected metal, forming a galvanic cell in the electrolyte environment. In this case, the sacrificial anode acts as the anode and undergoes oxidation and dissolution (corrosion), while the protected metal acts as the cathode to avoid oxidation, thus achieving protection. Currently, the application of this technology in the transfer and installation of zinc blocks on large ocean-going vessels is also an example. However, it has not yet been specifically applied in the field of offshore wind turbine jacket foundations because the jacket foundations need to be immersed in seawater for extended periods after installation, making it inconvenient to replace the consumed zinc blocks.

[0006] CN115369406B discloses an anti-corrosion structure for the base tower of an offshore wind turbine tower with a jacket foundation. This structure, belonging to the field of offshore wind turbine tower technology, solves the problem of unstable base tower connections caused by long-term seawater erosion. The anti-corrosion structure includes several support columns, support plates, and connecting cylinders. The support columns are fixedly connected to the support plates. A first hole is formed in the support plate, and the connecting cylinder is inserted into the first hole. A fixing plate is fixed to the outer periphery of the connecting cylinder, and the fixing plate is fixedly connected to the support plate by several first fixing bolts. A fixing seat is fixed to the inner wall of the connecting cylinder, and a clamping cylinder is slidably connected to the fixing seat. The clamping cylinder is equipped with a clamping assembly and a buffer assembly. Several aluminum alloy sacrificial anodes are provided on the clamping assembly, and the buffer assembly is connected to the inner wall of the connecting cylinder. This invention has the advantage of effectively preventing corrosion of the base tower structure.

[0007] While the aforementioned technical solutions can achieve protective corrosion protection for wind turbine towers, the protective structure itself is also susceptible to corrosion, resulting in effective corrosion protection but also hindering long-term maintenance. Therefore, a corrosion protection structure for the bottom of offshore wind turbine towers with jacket foundations is proposed. Summary of the Invention

[0008] To overcome the shortcomings of existing technologies, this invention provides a corrosion-resistant structure for the base of offshore wind turbine towers with jacket foundations, enabling flexible installation and replacement of zinc blocks, improving corrosion resistance and ease of long-term maintenance. To solve the aforementioned technical problems, the basic technical solution proposed by this invention is as follows: A corrosion-resistant structure for the bottom of an offshore wind turbine tower with a jacket foundation includes a jacket, an equipment cylinder connected to the bottom of the jacket, a suction cylinder connected to the lower end of each equipment cylinder, and a wind turbine pile installed at the upper end of the jacket. Guide rail rings are fitted at both the upper and lower ends of the equipment cylinder, and a rotating ring is rotatably fitted inside the guide rail rings. A sliding rod frame is radially connected to the outer side of the rotating ring along the equipment cylinder, and the sliding rod frame is arranged in a multiple circumferential array. An installation frame plate is slidably fitted on the outer sides of the sliding rod frame on both the upper and lower sides. A driving component is provided on the equipment cylinder to drive the rotating ring to rotate, and a driving component is provided on the rotating ring to drive the installation frame plate to slide on the sliding rod frame. An adjusting plate is slidably mounted on the mounting frame, and a sliding rod frame 2 is slidably sleeved through the adjusting plate. A clamping frame is connected to one end of the sliding rod frame 2 near the equipment cylinder. A spring 1, sleeved on the outside of the sliding rod frame 2, is connected between the clamping frame and the adjusting plate. A zinc block is mounted on the clamping frame, and a clamping assembly is provided on the clamping frame to clamp the zinc block inside the clamping frame. Scrapers are rotatably connected to both sides of the mounting frame, and a linkage assembly is also provided on the rotating ring. The linkage assembly is used to drive the scraper to fit against the surface of the equipment cylinder when the mounting frame slides.

[0009] Preferably, a wind power generation module is installed at the upper end of the wind turbine pile, and mounting seats are arrayed on the outer side of the rotating ring, with each sliding rod frame connected to the corresponding mounting seat.

[0010] Preferably, the mounting plate has an opening that extends through it, and a guide rod parallel to the axial direction of the equipment cylinder is connected to the side of the mounting plate away from the equipment cylinder. The guide rod is arranged on both sides of the opening. The two ends of the adjusting plate are slidably sleeved on the outer sides of the guide rods on both sides. The end of the sliding rod frame near the equipment cylinder also extends through the opening onto the side of the mounting plate near the equipment cylinder, and a clamping frame is connected to the extended end.

[0011] Preferably, the drive assembly includes a gear ring, a drive motor, and a gear. The gear ring is fitted outside the rotating ring and is located outside the guide ring. The drive motor is installed on the outer side of the equipment cylinder and is arranged in an array. The gear is connected to the output end of the drive motor and meshes with the gear ring.

[0012] Preferably, the lower end of the equipment cylinder is fitted with a ring platform, the upper end of the ring platform is connected with an array of arc-shaped blocks, and the outer side of each mounting plate is connected with a top frame, the lower end of the top frame is in contact with and slides against the upper surface of the arc-shaped block.

[0013] Preferably, the second drive assembly includes a bracket, a telescopic component, and a push ring. The bracket is connected to the rotating ring and there are multiple brackets, each corresponding to a multiple sliding rod bracket. The telescopic component is installed on the bracket. The push ring is connected to the output end of each telescopic component. Each push ring is rotatably connected to the end of each mounting plate closest to itself with a rotating rod, and the push ring is slidably sleeved on the outside of the equipment cylinder.

[0014] Preferably, the clamping assembly includes a clamping bar, a sliding plate, a sleeve block, and a second guide rod. The clamping bar is slidably fitted inside the clamping frame, and clamping bars are symmetrically slidably arranged at both the upper and lower ends of each clamping frame. The sliding plate is slidably fitted through the clamping frame, and sliding plates are symmetrically slidably fitted at both the upper and lower ends of each clamping frame. The sliding plate and the clamping bar on each side are rotatably connected by a rotating plate through a spiral hinge. The sleeve block is connected to the end of the sliding plate near the mounting plate. The second guide rod is connected to the side of the clamping frame near the mounting plate, and the sleeve block is slidably fitted on the outer side of the second guide rod.

[0015] Preferably, the inner walls on both sides of the clamping frame are provided with limiting grooves, and the two ends of the clamping strip are slidably sleeved in the limiting grooves on both sides of the clamping frame. A spring two sleeved on the outside of the guide rod two is connected between the sleeve block and the clamping frame.

[0016] Preferably, the linkage component includes a rotating shaft, a second gear, and a rack. The rotating shaft is rotatably connected to both sides of the mounting plate, and the rotating shafts on both sides are arranged parallel to each other. The scraper is connected to the outer side of the rotating shaft. The second gear is fitted on the upper and lower ends of the rotating shaft. The rack is connected to the bracket, and the rack meshes with the second gear on each side.

[0017] Preferably, the mounting plate is connected to mounting brackets at both the upper and lower ends, the rotating shaft is rotatably mounted on the mounting bracket, the bracket is connected to a connecting rod, and the rack is connected to the connecting rod.

[0018] The beneficial effects of this invention are: Firstly, the technical solution of the present invention adds a section of equipment cylinder above the existing suction cylinder and arranges multiple mounting plates in an array on the outside of the equipment cylinder. An adjustment plate is slidably installed on the mounting plate, and a sliding rod frame is slidably sleeved through the adjustment plate. A clamping frame is connected to one end of the sliding rod frame near the equipment cylinder. The clamping frame can hold a zinc block and fit it against the outer side of the equipment cylinder to form an electro-rust prevention. This allows the zinc block to provide electrons to the metal atoms on the suction cylinder and the guide frame, thus preferentially corroding the zinc block itself and forming effective protection for the suction cylinder and the guide frame. At the same time, the zinc block can also be easily and flexibly replaced in the clamping frame through the clamping components, which improves the reliability of long-term use and maintenance. Secondly, the technical solution of this invention provides a drive motor on the outside of the equipment cylinder, which drives a gear to rotate. The gear meshes with a gear ring, causing the rotating ring to rotate, which in turn causes the mounting plate sliding on the rotating ring to rotate and adjust the angle. This allows each mounting plate to be adjusted to a different position on the outside of the equipment cylinder during use, so that the zinc block fits against the radial surface of the equipment cylinder at different angles, thereby improving the comprehensive protection of the equipment cylinder. At the same time, since the adjusting plate is slidably mounted on the mounting plate and a top frame is connected to the outside of the adjusting plate, and an arc-shaped block that engages with the top frame is connected to the outer side of the lower end of the equipment cylinder through a ring platform, when the rotating ring rotates to adjust the angle between the mounting plate and the adjusting plate, the engagement of the top frame and the arc-shaped block can adjust the adjusting plate to different heights, further improving the uniformity of electro-rust prevention. This allows the equipment cylinder to provide uniform electro-rust and anti-corrosion protection for the guide frame and suction cylinder. Furthermore, the technical solution of this invention uses a telescopic component to drive the rotating rod to rotate, adjusting the mounting plate to slide on the surface of the sliding rod frame, so that the mounting plate slides away from the equipment cylinder. This allows the adjusting plate and clamping frame to move away from the equipment cylinder. At this time, a frogman can re-clamp and refill the consumed zinc blocks in the clamping frame. During production, as the zinc blocks are consumed, they may separate from the surface of the equipment cylinder. The telescopic component can also drive the rotating rod to rotate, keeping the zinc blocks in contact with the surface of the equipment cylinder. When the mounting plate slides away from the equipment cylinder, the meshing of gear two and rack can also drive the scraper, which was originally parallel to the radial tangent of the equipment cylinder, to rotate and fit against the surface of the equipment cylinder. Then, through the rotation of the rotating ring, the scraper can clean the impurities or marine organisms attached to the surface of the equipment cylinder, ensuring effective adhesion between the zinc blocks and the equipment cylinder and ensuring the stability of electro-rust prevention. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the structure of the device cylinder of the present invention; Figure 3 This is a front structural cross-sectional view of the device cylinder of the present invention; Figure 4 This is a schematic diagram of the drive component and related structures on the mounting plate of the present invention; Figure 5 This is a schematic diagram of the mounting plate and related structures on the rotating ring of the present invention; Figure 6 This is a schematic diagram of the driving component 2 and related structures on the mounting plate of the present invention; Figure 7 This is a schematic diagram of the relevant structures on the mounting plate of the present invention; Figure 8 This is a side view of the relevant structures on the mounting plate of the present invention; Figure 9 This is a schematic diagram of the clamping component of the present invention.

[0020] Explanation of reference numerals in the attached figures: 1. Jacket frame; 2. Equipment cylinder; 3. Suction cylinder; 4. Wind turbine pile; 5. Guide rail ring; 6. Rotary ring; 7. Mounting base; 8. Gear ring; 9. Drive motor; 10. Gear one; 11. Bracket; 12. Slide rod frame one; 13. Mounting frame plate; 14. Telescopic component; 15. Push ring; 16. Rotating rod; 17. Opening; 18. Guide rod one; 19. Adjusting plate; 20. Slide rod frame two; 21. Clamping frame; 22. Spring one; 23. Limiting groove; 24. Clamping strip; 25. Slide plate; 26. Sleeve block; 27. Guide rod two; 28. Spring two; 29. ​​Rotating plate; 30. Zinc block; 31. Mounting frame; 32. Rotating shaft; 33. Scraper; 34. Gear two; 35. Connecting rod; 36. Rack; 37. Ring platform; 38. Arc block; 39. Top frame. Detailed Implementation

[0021] The following will be combined with the appendix Figure 1 To be continued Figure 9 The technical solutions in the embodiments of the present invention have been clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0022] Example 1: like Figure 1-9 As shown, this invention discloses an anti-corrosion structure for the bottom of an offshore wind turbine tower with a jacket foundation, including a jacket 1, an equipment cylinder 2 connected to the bottom of the jacket 1, a suction cylinder 3 connected to the lower end of each equipment cylinder 2, a wind turbine pile 4 installed at the upper end of the jacket 1, guide rail rings 5 ​​fitted at both the upper and lower ends of the outer side of the equipment cylinder 2, and a rotating ring 6 rotatably fitted inside the guide rail ring 5, a sliding rod frame 12 connected radially along the outer side of the rotating ring 6 along the equipment cylinder 2, and the sliding rod frame 12 is arranged in a multiple circumferential array, and an installation frame plate 13 is slidably fitted on the outer side of the upper and lower sliding rod frame 12, a drive component 1 is provided on the equipment cylinder 2, the drive component 1 is used to drive the rotating ring 6 to rotate, and a drive component 2 is provided on the rotating ring 6, the drive component 2 is used to drive the installation frame plate 13 to slide on the sliding rod frame 12; An adjusting plate 19 is slidably mounted on the mounting plate 13, and a sliding rod frame 20 is slidably mounted through the adjusting plate 19. A clamping frame 21 is connected to one end of the sliding rod frame 20 near the equipment cylinder 2. A spring 22 is connected between the clamping frame 21 and the adjusting plate 19 and is sleeved on the outside of the sliding rod frame 20. A zinc block 30 is mounted on the clamping frame 21, and a clamping assembly is provided on the clamping frame 21 to clamp the zinc block 30 inside the clamping frame 21. Scrapers 33 are rotatably connected to both sides of the mounting plate 13. A linkage assembly is also provided on the rotating ring 6. The linkage assembly is used to drive the scraper 33 to fit against the surface of the equipment cylinder 2 when the mounting plate 13 slides.

[0023] The wind turbine pile 4 has a wind power generation module 40 installed on its upper end. The outer side of the rotating ring 6 is arrayed with mounting bases 7. Each sliding bracket 12 is connected to the corresponding mounting base 7. The wind power generation module 40 includes the existing nacelle and blades.

[0024] An opening 17 is provided through the mounting plate 13. A guide rod 18 parallel to the axis of the equipment cylinder 2 is connected to the side of the mounting plate 13 away from the equipment cylinder 2. The guide rod 18 is arranged on both sides of the opening 17. The two ends of the adjusting plate 19 are slidably sleeved on the outer sides of the guide rods 18 on both sides. The end of the sliding rod bracket 20 near the equipment cylinder 2 also extends through the opening 17 on the side of the mounting plate 13 near the equipment cylinder 2, and a clamping frame 21 is connected to the extended end. The setting of the guide rod 18 allows the adjusting plate 19 to slide stably on the side of the mounting plate 13 away from the equipment cylinder 2. At the same time, the opening 17 facilitates the sliding rod bracket 20, which is slidably sleeved through the adjusting plate 19, to extend through the opening 17 on the side of the mounting plate 13 near the equipment cylinder 2, and the clamping frame 21 is connected to the extended end.

[0025] By adding a section of equipment cylinder 2 above the existing suction cylinder 3, and arranging multiple mounting plates 13 in an array on the outside of the equipment cylinder 2, an adjustment plate 19 is slidably mounted on the mounting plate 13, and a sliding rod frame 20 is slidably sleeved through the adjustment plate 19. The end of the sliding rod frame 20 near the equipment cylinder 2 is connected to a clamping frame 21. The clamping frame 21 can hold the zinc block 30 and fit it against the outer side of the equipment cylinder 2, thus forming an electro-rust prevention. This allows the zinc block 30 to provide electrons to the metal atoms on the suction cylinder 3 and the guide frame 1, thus preferentially corroding the zinc block 30 itself, forming an effective protection for the suction cylinder 3 and the guide frame 1. At the same time, the zinc block 30 can also be easily replaced flexibly within the clamping frame 21 through the clamping components, improving the reliability of long-term use and maintenance.

[0026] Example 2: like Figure 1-9 As shown, the present invention discloses an anti-corrosion structure for the bottom of an offshore wind turbine tower with a jacket foundation. Compared with Embodiment 1, this embodiment discloses the structure of the drive component 1.

[0027] The drive assembly includes a gear ring 8, a drive motor 9, and a gear 10. The gear ring 8 is fitted outside the rotating ring 6 and is located outside the guide ring 5. The drive motor 9 is installed on the outer side of the equipment cylinder 2 and is arranged in multiple arrays. The gear 10 is connected to the output end of the drive motor 9 and meshes with the gear ring 8.

[0028] When the drive motor 9 is started, the rotating ring 6 is driven to rotate through the meshing of the gear 10 and the gear ring 8. The rotation of the rotating ring 6 causes the mounting bracket plate 13, which is slidably fitted on the rotating ring 6 through the sliding rod bracket 12, to rotate as well. This allows the adjusting plate 19 and the clamping frame 21 sliding on the mounting bracket plate 13 to rotate as well, so that the zinc blocks 30 clamped in each clamping frame 21 can rotate to different angles on the outer side of the equipment cylinder 2 and fit against the equipment cylinder 2. This provides uniform electro-rust and corrosion protection to the outer side of the equipment cylinder 2, and thus provides uniform and stable electro-rust and corrosion protection to the guide frame 1 and the suction cylinder 3.

[0029] The lower end of the equipment cylinder 2 is fitted with a ring platform 37, and the upper end of the ring platform 37 is connected with an array of arc-shaped blocks 38. Each mounting plate 13 is connected to a top frame 39 on its outer side, and the lower end of the top frame 39 is in contact with and slides against the upper surface of the arc-shaped block 38.

[0030] The drive motor 9 rotates, causing gear 10 to rotate. Gear 10 meshes with gear ring 8, causing rotating ring 6 to rotate. The mounting plate 13 sliding on rotating ring 6 can rotate accordingly, and the angle can be adjusted. During actual use, each mounting plate 13 can be adjusted to different positions on the outside of equipment cylinder 2, so that zinc block 30 is in contact with the radial surface of equipment cylinder 2 at different angles, thereby improving the comprehensive protection of equipment cylinder 2. At the same time, since the adjusting plate 19 is slidably set on the mounting plate 13, and the adjusting plate 19 is connected to the outside of the top frame 39, and the lower outer side of equipment cylinder 2 is connected to the arc-shaped block 38 that cooperates and abuts against the top frame 39 through ring platform 37, when rotating ring 6 adjusts the angle between mounting plate 13 and adjusting plate 19, the top frame 39 and arc-shaped block 38 can also be used to adjust the adjusting plate 19 to different heights, further improving the uniformity of electro-rust prevention. This allows equipment cylinder 2 to provide uniform electro-rust prevention and protection for conduit frame 1 and suction cylinder 3.

[0031] Example 3: like Figure 1-9 As shown, this invention discloses a corrosion-resistant structure for the bottom of an offshore wind turbine tower with a jacket foundation. Compared to Embodiment 2, this embodiment discloses the structure of the second drive component.

[0032] The second drive assembly includes a bracket 11, a telescopic component 14, and a push ring 15. The bracket 11 is connected to the rotating ring 6, and there are multiple brackets, which are respectively set with multiple sliding rod brackets 12. The telescopic component 14 is installed on the bracket 11. The push ring 15 is connected to the output end of each telescopic component 14. The push ring 15 is rotatably connected to the end of each mounting plate 13 near itself with a rotating rod 16, and the push ring 15 is slidably sleeved on the outside of the equipment cylinder 2.

[0033] The telescopic component 14 extends and retracts, which drives the push ring 15 to slide up and down, thereby driving the rotating rod 16 to rotate. When the telescopic components 14 at both ends of the equipment cylinder 2 are running synchronously, the mounting plate 13 can slide on the outer side of the slide rod frame 12, so as to achieve the sliding of the mounting plate 13 towards or away from the equipment cylinder 2.

[0034] During the production process, as the zinc block 30 is consumed, the zinc block 30 may separate from the surface of the equipment cylinder 2. The rotating rod 16 can be rotated by the telescopic component 14 to keep the zinc block 30 attached to the surface of the equipment cylinder 2.

[0035] Example 4: like Figure 1-9 As shown, this invention discloses an anti-corrosion structure for the bottom of an offshore wind turbine tower with a jacket foundation. Compared with Embodiment 3, this embodiment discloses the structure of the clamping assembly.

[0036] The clamping assembly includes a clamping bar 24, a sliding plate 25, a sleeve block 26, and a second guide rod 27. The clamping bar 24 is slidably fitted inside the clamping frame 21, and the clamping bars 24 are symmetrically slidably fitted at both the upper and lower ends of each clamping frame 21. The sliding plate 25 is slidably fitted through the clamping frame 21, and the sliding plate 25 is symmetrically slidably fitted at both the upper and lower ends of each clamping frame 21. The sliding plate 25 and the clamping bar 24 on each side are rotatably connected by a rotating plate 29 through a spiral hinge. The sleeve block 26 is connected to the end of the sliding plate 25 near the mounting plate 13. The second guide rod 27 is connected to the side of the clamping frame 21 near the mounting plate 13, and the sleeve block 26 is slidably fitted on the outer side of the second guide rod 27.

[0037] Limiting grooves 23 are provided on both sides of the inner wall of the clamping frame 21. The two ends of the clamping strip 24 are slidably sleeved in the limiting grooves 23 on both sides of the clamping frame 21. A spring 28 sleeved on the outside of the guide rod 27 is connected between the sleeve block 26 and the clamping frame 21.

[0038] Under the action of spring 28, the slide plate 25 will slide away from the equipment cylinder 2, which will push the rotating plate 29 to move the clamping strips 24 on both sides closer to each other and stably clamp the zinc block 30 between the clamping strips 24. At the same time, when the mounting plate 13 is moved closer to the equipment cylinder 2, it will also move the clamping frame 21 closer to the equipment cylinder 2. The zinc block 30 protruding from the slide plate 25 can then make contact with the surface of the equipment cylinder 2 for electro-rust prevention and corrosion prevention.

[0039] When the zinc block 30 is exhausted and needs to be replaced, first move the two clamping bars 24 away from each other, place the zinc block 30 between the two clamping bars 24, and then release the clamping bars 24. Under the action of the spiral hinge and the second spring 28, the clamping bars 24 will clamp the zinc block 30.

[0040] Example 5: like Figure 1-9 As shown, this invention discloses an anti-corrosion structure for the bottom of an offshore wind turbine tower with a jacket foundation. Compared with Embodiment 4, this embodiment discloses the structure of the linkage component.

[0041] The linkage assembly includes a rotating shaft 32, a second gear 34, and a rack 36. The rotating shaft 32 is rotatably connected to both sides of the mounting plate 13, and the rotating shafts 32 on both sides are arranged parallel to each other. The scraper 33 is connected to the outer side of the rotating shaft 32. The second gear 34 is fitted on the upper and lower ends of the rotating shaft 32. The rack 36 is connected to the bracket 11, and the rack 36 meshes with the second gear 34 on each side.

[0042] Mounting brackets 31 are connected to both the upper and lower ends of mounting plate 13. Rotating shaft 32 is rotatably mounted on mounting bracket 31. Connecting rod 35 is connected to bracket 11, and rack 36 is connected to connecting rod 35.

[0043] When the mounting plate 13 slides away from the equipment cylinder 2, it can also drive the scraper 33, which was originally parallel to the radial tangent of the equipment cylinder 2, to rotate and fit against the surface of the equipment cylinder 2 through the meshing of the gear 2 34 and the rack 36. Then, through the rotation of the rotating ring 6, the scraper 33 can be driven to scrape the impurities or marine organisms attached to the surface of the equipment cylinder 2 to ensure the effective fit between the zinc block 30 and the equipment cylinder 2 and ensure the stability of electro-rust prevention.

[0044] Based on the disclosure and teachings of the foregoing specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should also fall within the protection scope of the claims of the present invention. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on the present invention.

Claims

1. A corrosion-resistant structure for the bottom of an offshore wind turbine tower with a jacket foundation, comprising a jacket (1), an equipment cylinder (2) connected to the bottom of the jacket (1), a suction cylinder (3) connected to the lower end of each equipment cylinder (2), and a wind turbine pile (4) installed at the upper end of the jacket (1), characterized in that, The equipment cylinder (2) is fitted with guide rail rings (5) at both the upper and lower ends, and a rotating ring (6) is rotatably fitted inside the guide rail rings (5). A sliding rod frame (12) is connected radially to the outer side of the rotating ring (6) along the equipment cylinder (2), and the sliding rod frame (12) is arranged in a multiple circumferential array. The outer sides of the sliding rod frame (12) on both the upper and lower sides are slidably fitted with a mounting plate (13). A drive assembly (1) is provided on the equipment cylinder (2), which is used to drive the rotating ring (6) to rotate. A drive assembly (2) is provided on the rotating ring (6), which is used to drive the mounting plate (13) to slide on the sliding rod frame (12). An adjustment plate (19) is slidably provided on the mounting plate (13), and the adjustment plate... (19) has a sliding sleeve with a slide rod frame (20) through it. The slide rod frame (20) is connected to a clamping frame (21) at one end near the equipment cylinder (2). A spring (22) is sleeved on the outside of the slide rod frame (20) between the clamping frame (21) and the adjusting plate (19). A zinc block (30) is installed on the clamping frame (21). A clamping component is provided on the clamping frame (21). The clamping component is used to clamp the zinc block (30) in the clamping frame (21). Scrapers (33) are rotatably connected to both sides of the mounting plate (13). A linkage component is also provided on the rotating ring (6). The linkage component is used to drive the scraper (33) to fit against the surface of the equipment cylinder (2) when the mounting plate (13) slides.

2. The anti-corrosion structure for the bottom of an offshore wind turbine tower with a jacket foundation according to claim 1, characterized in that, The wind power pile (4) is equipped with a wind power generation module (40) at its upper end, and the outer side of the rotating ring (6) is equipped with mounting bases (7). Each of the sliding rod frames (12) is connected to the corresponding mounting base (7).

3. The anti-corrosion structure for the bottom of an offshore wind turbine tower with a jacket foundation according to claim 1, characterized in that, An opening (17) is provided through the mounting plate (13). A guide rod (18) parallel to the axial direction of the equipment cylinder (2) is connected to one side of the mounting plate (13) away from the equipment cylinder (2). The guide rod (18) is arranged on both sides of the opening (17). The two ends of the adjusting plate (19) are respectively slidably sleeved on the outer side of the two guide rods (18). The end of the sliding rod frame (20) near the equipment cylinder (2) also extends through the opening (17) on the side of the mounting plate (13) near the equipment cylinder (2), and a clamping frame (21) is connected to the extended end.

4. The anti-corrosion structure for the bottom of an offshore wind turbine tower with a jacket foundation as described in claim 1, characterized in that, The drive assembly includes a gear ring (8), a drive motor (9), and a gear (10). The gear ring (8) is fitted outside the rotating ring (6) and is located outside the guide ring (5). The drive motor (9) is installed on the outer side of the equipment cylinder (2) and is arranged in multiple arrays. The gear (10) is connected to the output end of the drive motor (9) and meshes with the gear ring (8).

5. The anti-corrosion structure for the bottom of an offshore wind turbine tower with a jacket foundation according to claim 4, characterized in that, The lower end of the equipment cylinder (2) is fitted with a ring platform (37), and the upper end of the ring platform (37) is connected with an array of arc blocks (38). Each mounting plate (13) is connected to a top frame (39) on its outer side. The lower end of the top frame (39) is in contact with and slides against the upper surface of the arc block (38).

6. The anti-corrosion structure for the bottom of an offshore wind turbine tower with a jacket foundation according to claim 1, characterized in that, The second drive assembly includes a bracket (11), a telescopic component (14), and a push ring (15). The bracket (11) is connected to the rotating ring (6) and there are multiple brackets, which are respectively set with multiple sliding rod frames (12). The telescopic component (14) is installed on the bracket (11). The push ring (15) is connected to the output end of each telescopic component (14). The push ring (15) is rotatably connected to the end of each mounting plate (13) near itself with a rotating rod (16). The push ring (15) is slidably sleeved on the outside of the equipment cylinder (2).

7. The anti-corrosion structure for the bottom of an offshore wind turbine tower with a jacket foundation according to claim 1, characterized in that, The clamping assembly includes a clamping bar (24), a sliding plate (25), a sleeve block (26), and a second guide rod (27). The clamping bar (24) is slidably fitted inside the clamping frame (21), and the clamping bar (24) is symmetrically slidably fitted at both the upper and lower ends of each clamping frame (21). The sliding plate (25) is slidably fitted through the clamping frame (21), and the sliding plate (25) is symmetrically slidably fitted at both the upper and lower ends of each clamping frame (21). The sliding plate (25) and the clamping bar (24) on each side are rotatably connected by a rotating plate (29) through a spiral hinge. The sleeve block (26) is connected to one end of the sliding plate (25) near the mounting frame plate (13). The second guide rod (27) is connected to one side of the clamping frame (21) near the mounting frame plate (13). The sleeve block (26) is slidably fitted on the outer side of the second guide rod (27).

8. The anti-corrosion structure for the bottom of an offshore wind turbine tower with a jacket foundation according to claim 7, characterized in that, The inner walls of both sides of the clamping frame (21) are provided with limiting grooves (23). The two ends of the clamping strip (24) are slidably sleeved in the limiting grooves (23) on both sides of the clamping frame (21). A spring (28) sleeved on the outside of the guide rod (27) is connected between the sleeve block (26) and the clamping frame (21).

9. The anti-corrosion structure for the bottom of an offshore wind turbine tower with a jacket foundation according to claim 1, characterized in that, The linkage assembly includes a rotating shaft (32), a second gear (34), and a rack (36). The rotating shaft (32) is rotatably connected to both sides of the mounting plate (13), and the rotating shafts (32) on both sides are arranged parallel to each other. The scraper (33) is connected to the outer side of the rotating shaft (32). The second gear (34) is fitted on the upper and lower ends of the rotating shaft (32). The rack (36) is connected to the bracket (11), and the rack (36) meshes with the second gear (34) on each side.

10. The anti-corrosion structure for the bottom of an offshore wind turbine tower with a jacket foundation according to claim 9, characterized in that, The mounting plate (13) is connected to mounting brackets (31) at both the upper and lower ends. The rotating shaft (32) is rotatably mounted on the mounting bracket (31). The bracket (11) is connected to a connecting rod (35). The rack (36) is connected to the connecting rod (35).

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