Corrosion-resistant offshore wind power tower drum combined structure

Abstract

The application discloses a kind of corrosion-resistant offshore wind power tower drum combination structures, including first tower drum, second tower drum and limiting module.First tower drum is equipped with first installation port and second installation port, second tower drum is located in the lower end of first tower drum, and sliding groove and third installation port are equipped on second tower drum.Limiting module is composed of multiple limiting components and positioning member, and the positioning member is composed of ring body and multiple guide bars located at the lower end of the ring body.The corrosion-resistant offshore wind power tower drum combination structure cooperates between limiting component and positioning member and tower drum, reinforces the middle and interior of tower drum, ensures the close connection between first tower drum and second tower drum, and strengthens the stability between first tower drum and second tower drum.Moreover, when first tower drum and second tower drum are docked, they do not need limiting component to be precisely docked with first installation port, second installation port and third installation port, and limiting component can be adjusted by positioning member, which shortens the time of tower drum and improves construction efficiency.

Description

Technical Field

[0001] This invention relates to wind turbine tower assembly technology, and more particularly to a corrosion-resistant offshore wind turbine tower assembly structure. Background Technology

[0002] The wind turbine tower mainly serves as a support structure in wind turbine generator sets, while also absorbing vibrations from the generator set. As an important connecting component of the wind turbine tower structure, the flange joint is subject to increasing requirements due to the increasing capacity of individual wind turbine generator sets, which means that the width, height, and weight of the generator set also increase. This leads to increasingly higher requirements for the reliability and mechanical performance of the flange joint, because only by ensuring sufficient reliability and excellent mechanical performance of the tower can the wind turbine generator set operate safely and stably within its design life.

[0003] The lower precast prestressed concrete tower is composed of multi-segment prefabricated sections, which are then assembled on-site. During on-site assembly, multiple vertical segments are connected by grouting at horizontal joints, and prestressed steel strands are used to apply prestress, compressing the segments to form a unified tower. Because there is no continuous reinforcement at the horizontal joints, they become the weakest point in the tower structure, prone to cracking and opening under extreme external loads, affecting the overall safety of the tower. When the horizontal joints crack, or when the load-bearing capacity requirements of the tower, especially the shear capacity requirements of the horizontal joints, increase due to factors such as unit replacement, reinforcement of the horizontal joints is necessary. Otherwise, further crushing of the concrete tower may lead to its overall collapse. Therefore, modifications to the reinforcement structure at the horizontal joints are required. Summary of the Invention

[0004] To address the shortcomings of the existing technology, this invention proposes a corrosion-resistant offshore wind turbine tower assembly structure.

[0005] The technical solution of this invention is implemented as follows: A corrosion-resistant offshore wind turbine tower assembly structure, characterized in that it comprises: A first tower section has a first mounting port and a second mounting port, with a partition between them. The first mounting port is located on the outer wall of the first tower section, and the second mounting port is located in the middle of the first tower section. A second tower, which mates with the first tower, is located at the lower end of the first tower. The second tower has a sliding groove and a third mounting opening, the third mounting opening being located in the middle of the second tower and symmetrically arranged with the second mounting opening. Symmetrical mounting grooves are provided on both sides of the sliding groove, and mounting seats are provided within each mounting groove. A rotating shaft is provided between the mounting seats. The sliding groove connects the outer wall and the inner wall of the second tower. A limiting module is installed between the first and second tower sections. The limiting module consists of multiple limiting components and positioning elements. The limiting components are disposed in a sliding groove, a first mounting port, a second mounting port, and a third mounting port. The positioning elements are located on the inner walls of the first and second tower sections. The limiting assembly includes a sliding seat with symmetrically arranged positioning blocks. Each positioning block has a hollowed-out center forming an installation area. A movable component is located within this installation area, with one end positioned within the installation area and the other end located within a second and / or third installation port. The sliding seat has a sliding end that mates with a first installation port, and an extension body is provided on the sliding end. The first installation port has an extension opening to accommodate the extension body. The sliding seat also has a hinge hole that mates with a rotating shaft; this hinge hole is a strip-shaped hole. Furthermore, the sliding seat has a guide end located opposite the sliding end, and this guide end has a guide vertical surface and a guide inclined surface. The positioning component consists of a ring body and multiple guide strips located at the lower end of the ring body. The guide strips form a receiving space to accommodate the guide end. The ring body is provided with a vertical groove that cooperates with the guide vertical surface and a pushing inclined surface that cooperates with the guide inclined surface.

[0006] In this invention, the sliding end is provided with a first dovetail groove, and the first dovetail groove is provided with a dovetail body.

[0007] In this invention, the outer surfaces of the first tower and the second tower are provided with symmetrically arranged arc-shaped plates, and the inner walls of the arc-shaped plates are provided with second dovetail grooves that cooperate with the dovetail body, with the lower end of the second dovetail grooves penetrating through.

[0008] In this invention, an active area is formed in the second mounting port and the third mounting port, and a blocking body is provided in the active area. A locking area is formed between the blocking body and the inner wall of the active area, and a passage area is formed between the locking area and the active area. The blocking body is located in the passage area.

[0009] In this invention, the blocking body is provided with a guide slope.

[0010] In this invention, a strong magnet is provided in the installation area, and symmetrically arranged fixing blocks are provided on the inner wall of the installation area, with the fixing blocks located at the upper end of the strong magnet.

[0011] In this invention, the movable component consists of a movable section, a connecting section, and a locking section. The lower end of the movable section is provided with a notch that mates with the fixed block, and the locking section is provided with a contact slope that mates with the guide slope.

[0012] In this invention, the positioning block is provided with symmetrically arranged welding parts, and the welding parts are provided with limiting bodies extending into the installation area.

[0013] In this invention, the movable segment is provided with symmetrically arranged notches, and a positioning post is provided in the notch. A spring is sleeved on the positioning post, and the upper end of the spring contacts the lower end face of the limiting body, and the lower end contacts the inner wall of the notch.

[0014] In this invention, the diameters of the second and third mounting ports are greater than the distance between the movable section, the connecting section, and the locking section.

[0015] The corrosion-resistant offshore wind turbine tower assembly structure of this invention has the following beneficial effects: This corrosion-resistant offshore wind turbine tower assembly structure uses limiting components and positioning parts that cooperate with the tower to reinforce the middle and interior of the tower, ensuring a tight connection between the first and second tower sections and enhancing the stability between them. Furthermore, when the first and second tower sections are joined, there is no need for precise alignment of the limiting components with the first, second, and third mounting ports; the positioning parts can be adjusted to shorten the tower sectioning time and improve construction efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the corrosion-resistant offshore wind turbine tower assembly structure of the present invention; Figure 2 for Figure 1 Top view; Figure 3 for Figure 2 Cross-sectional view at point AA; Figure 4 for Figure 1 Exploded view; Figure 5 for Figure 4 A schematic diagram of the arc-shaped plate structure in the diagram; Figure 6 for Figure 4 A schematic diagram of the first tower structure in the middle; Figure 7 for Figure 6 Cross-sectional view; Figure 8 for Figure 7 Enlarged view of section C in the image; Figure 9 for Figure 4 A schematic diagram of the second tower structure; Figure 10 for Figure 9 Cross-sectional view; Figure 11 for Figure 4 A schematic diagram of the limit module structure in the middle; Figure 12 for Figure 11 Exploded view of the limiting component structure in the middle; Figure 13 for Figure 12 Perspective view of the sliding seat structure in the middle; Figure 14 for Figure 12 Perspective view of the moving parts structure; Figure 15 for Figure 11 Perspective view of the positioning component structure in the middle; Figure 16 for Figure 3 Enlarged view of section B in the image; Figure 17 for Figure 13 A magnified view of section D in the image.

[0017] In the diagram: 1. First tower; 2. Second tower; 3. Limiting module; 4. First mounting port; 5. Second mounting port; 6. Sliding groove; 7. Third mounting port; 8. Sliding seat; 9. Movable part; 10. Mounting groove; 11. Mounting seat; 12. Rotating shaft; 13. Limiting assembly; 14. Positioning part; 15. Hinge hole; 16. Sliding end; 17. Ring body; 18. Guide strip; 19. Guide end; 20. Accommodating space; 21. First bolt; 22. Second bolt; 23. Guide vertical surface; 24. Vertical groove; 25. Guide inclined surface; 26. Pushing inclined surface; 27. Positioning block; Installation. Area 28, Extension body 29, Extension opening 30, First dovetail groove 31, Dovetail body 32, Arc plate 33, Second dovetail groove 34, Connecting plate 35, Third bolt 36, Moving area 37, Blocking body 38, Locking area 39, Passing area 40, Moving section 41, Connecting section 42, Locking section 43, Guide slope 44, Placement opening 45, Fixing block 46, Notch 47, Contact slope 48, Strong magnet 49, Spring 50, Welded part 51, Limiting body 52, Notch 53, Positioning post 54, Separator 55. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0019] like Figures 1 to 17 As shown, this corrosion-resistant offshore wind turbine tower assembly structure of the present invention includes a first tower 1, a second tower 2, and a limiting module 3. The first tower 1 and the second tower 2 are connected, with the second tower 2 located at the lower end of the first tower 1. The limiting module 3 is located between the first tower 1 and the second tower 2. The first tower 1 and the second tower 2 are connected and reinforced by the limiting module 3, ensuring the stable strength between the first tower 1 and the second tower 2 and preventing the connection joint between the towers from breaking and causing an accident.

[0020] The first tower 1 is provided with a first mounting port 4 and a second mounting port 5, with a partition 55 between the first mounting port 4 and the second mounting port 5. The first mounting port 4 is located on the outer wall of the first tower 1, and the second mounting port 5 is located in the middle of the first tower 1. The first mounting port 4 is used to fix the outer wall of the first tower 1, while the second mounting port 5 is used to reinforce the middle of the first tower 1, ensuring the connection between the first tower 1 and the second tower 2.

[0021] The second tower 2 is located at the lower end of the first tower 1. The second tower 2 has a sliding groove 6 and a third mounting port 7, which is positioned in the middle of the second tower 2. The third mounting port 7 is symmetrically arranged with the second mounting port 5. The second mounting port 5 and the third mounting port 7 work together to position the sliding seat 8 in the middle. The movable part 9 on the sliding seat 8 positions and connects the middle of the first tower 1 and the second tower 2.

[0022] Symmetrical mounting grooves 10 are provided on both sides of the sliding groove 6. Mounting seats 11 are provided in the mounting grooves 10, and a rotating shaft 12 is provided between the mounting seats 11. The sliding groove 6 connects the outer wall and the inner wall of the second tower 2. The first rotating shaft 12 is used to limit the position of the sliding seat 8 to ensure that the sliding seat 8 will not slide out of the mounting groove 10.

[0023] The limiting module 3 consists of multiple limiting components 13 and positioning elements 14. The limiting components 13 are disposed in the sliding groove 6, the first mounting port 4, the second mounting port 5, and the third mounting port 7. The positioning elements 14 are located on the inner walls of the first tower 1 and the second tower 2. The positioning elements 14 are annular. When the first tower 1 is installed on the second tower 2, the sliding seat 8 slides towards the middle of the tower by moving the positioning elements 14 downward, so that the first rotating shaft 12 slides in the hinge hole 15. At the same time, the movable part 9 moves in the second mounting port 5 and the third mounting port 7, and the sliding end 16 enters the first mounting port 4.

[0024] The positioning component 14 consists of a ring body 17 and multiple guide strips 18 located at the lower end of the ring body 17. The guide strips 18 form a receiving space 20 to accommodate the guide end 19, which restricts the position of the guide end 19. Simultaneously, the guide end 19 is connected to the positioning component 14 and the first tower 1 via a first bolt 21, while the lower end of the guide strips 18 is connected to the second tower 2 via a second bolt 22, thus enabling the positioning component 14 to reinforce the inner walls of the first tower 1 and the second tower 2.

[0025] The ring body 17 is provided with a vertical groove 24 that mates with the guide vertical surface 23 and a pushing inclined surface 26 that mates with the guide inclined surface 25. The guide vertical surface 23 can mate with the vertical groove 24 and be positioned in the receiving space 20. The pushing inclined surface 26 can push the guide inclined surface 25, so that the sliding seat 8 slides in the sliding groove 6, ensuring that the guide end 19 on the sliding seat 8 slides towards the middle of the tower, so that the upper end surface a of the receiving space 20 contacts the b surface on the sliding seat 8, limiting the position of the sliding seat 8. At the same time, the positions of the first tower 1 and the second tower 2 are locked by the two movable parts 9 at the top and bottom of the sliding seat 8.

[0026] The limiting component 13 is provided with a sliding seat 8, and the sliding seat 8 is provided with positioning blocks 27 arranged symmetrically on the upper and lower sides. The middle of the positioning block 27 is hollowed out to form an installation area 28. A movable part 9 is provided in the installation area 28. The movable part 9 is used to lock the middle of the first tower 1 and the second tower 2.

[0027] One end of the movable part 9 is located in the installation area 28, and the other end is located in the second installation port 5 and / or the third installation port 7. The sliding seat 8 is provided with a sliding end 16 that cooperates with the first installation port 4. An extension body 29 is provided on the sliding end 16. The first installation port 4 is provided with an extension port 30 to accommodate the extension body 29. The extension port 30 can restrict the outer wall of the first tower 1 to prevent the outer wall of the first tower 1 from tilting due to external forces. The extension body 29 can apply downward force to the outer wall of the first tower 1.

[0028] The sliding seat 8 is also provided with a hinge hole 15 that mates with the rotating shaft 12. The hinge hole 15 is a strip-shaped hole. The sliding seat 8 is also provided with a guide end 19, which is located on the opposite side of the sliding end 16. The guide end 19 is provided with a guide vertical surface 23 and a guide inclined surface 25.

[0029] A first dovetail groove 31 is provided on the sliding end 16, and a first dovetail groove 31 is also provided on the second tower 2. A dovetail body 32 is provided inside the first dovetail groove 31. Symmetrically arranged arc-shaped plates 33 are provided on the outside of the first tower 1 and the second tower 2. A second dovetail groove 34 is provided on the inner wall of the arc-shaped plate 33 to cooperate with the dovetail body 32, and the lower end of the second dovetail groove 34 is through. Connecting plates 35 are provided on both sides of the arc-shaped plate 33, and are connected by a third bolt 36.

[0030] During the installation of the dovetail body 32, the first tower 1 is first installed on the second tower 2. At this time, the positioning component 14 is not installed. Instead, the arc-shaped plate 33 is installed first. One side of the dovetail body 32 is inserted into the first dovetail groove 31 on the sliding end 16. Then, the arc-shaped plate 33 is inserted into the dovetail body 32 from the bottom. Since the bottom end of the arc-shaped plate 33 is through but the top end is not through, the arc-shaped plate 33 can be placed on the dovetail body 32. After the arc-shaped plate 33 is installed, the positioning component 14 can be installed. After the positioning component 14 is installed, the positions of the two arc-shaped plates 33 can be fixed by the third bolt 36.

[0031] A movable area 37 is formed in the second mounting port 5 and the third mounting port 7. A stop 38 is provided in the movable area 37. A locking area 39 is formed between the stop 38 and the inner wall of the movable area 37. A passage area 40 is formed between the locking area 39 and the movable area 37. The stop 38 is located in the passage area 40. The diameter of the second mounting port 5 and the third mounting port 7 is larger than the distance between the movable section 41, the connecting section 42 and the locking section 43, ensuring that the movable part 9 can move in the second mounting port 5 and the third mounting port 7.

[0032] The blocking body 38 is provided with a guide slope 44. The movable part 9 consists of a movable section 41, a connecting section 42, and a locking section 43. The lower end of the connecting section 42 forms a placement opening 45 for accommodating the blocking body 38. The lower end of the movable section 41 is provided with a notch 47 that mates with the fixed block 46, and the locking section 43 is provided with a contact slope 48 that mates with the guide slope 44.

[0033] The locking section 43 on the movable part 9 is initially located within the movable area 37. After the positioning part 14 is installed, the sliding seat 8 can be pushed, causing the locking section 43 to engage with the guide slope 44 through the contact slope 48, thus separating the movable part 9 from the strong magnet 49. The movable part 9 is made of magnetic metal and retains the movable section 41 while compressing the spring 50. Under the push of the sliding seat 8, the locking section 43 moves from the movable area 37 into the locking area 39, fixing and limiting the first tower 1 and the second tower 2.

[0034] The positioning block 27 is provided with symmetrically arranged welding parts 51, and the welding parts 51 are provided with limiting bodies 52 extending into the installation area 28. The welding parts 51 can fix the movable part 9 and prevent it from leaving the installation area 28. During installation, a part of the movable section 41 is first installed into the installation area 28, and then the welding parts 51 are installed and welded to the positioning block 27.

[0035] The movable section 41 has symmetrically arranged recesses 53, each containing a positioning post 54. A spring 50 is fitted onto each positioning post 54, with the upper end of the spring 50 contacting the lower end face of the limiting body 52 and the lower end contacting the inner wall of the recess 53. A strong magnet 49 is provided within the mounting area 28, and symmetrically arranged fixing blocks 46 are located on the inner wall of the mounting area 28, positioned above the strong magnet 49. The spring 50 can push the movable part 9 to reset, while simultaneously cooperating with the strong magnet 49 to limit the position of the movable part 9.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A corrosion-resistant offshore wind turbine tower assembly structure, characterized in that, include: A first tower section has a first mounting port and a second mounting port, with a partition between them. The first mounting port is located on the outer wall of the first tower section, and the second mounting port is located in the middle of the first tower section. A second tower, which mates with the first tower, is located at the lower end of the first tower. The second tower has a sliding groove and a third mounting opening, the third mounting opening being located in the middle of the second tower and symmetrically arranged with the second mounting opening. Symmetrical mounting grooves are provided on both sides of the sliding groove, and mounting seats are provided within each mounting groove. A rotating shaft is provided between the mounting seats. The sliding groove connects the outer wall and the inner wall of the second tower. A limiting module is installed between the first and second tower sections. The limiting module consists of multiple limiting components and positioning elements. The limiting components are disposed in a sliding groove, a first mounting port, a second mounting port, and a third mounting port. The positioning elements are located on the inner walls of the first and second tower sections. The limiting assembly includes a sliding seat with symmetrically arranged positioning blocks. Each positioning block has a hollowed-out center forming an installation area. A movable component is located within this installation area, with one end positioned within the installation area and the other end located within a second and / or third installation port. The sliding seat has a sliding end that mates with a first installation port, and an extension body is provided on the sliding end. The first installation port has an extension opening to accommodate the extension body. The sliding seat also has a hinge hole that mates with a rotating shaft; this hinge hole is a strip-shaped hole. Furthermore, the sliding seat has a guide end located opposite the sliding end, and this guide end has a guide vertical surface and a guide inclined surface. The positioning component consists of a ring body and multiple guide strips located at the lower end of the ring body. The guide strips form a receiving space to accommodate the guide end. The ring body is provided with a vertical groove that cooperates with the guide vertical surface and a pushing inclined surface that cooperates with the guide inclined surface.

2. The corrosion-resistant offshore wind turbine tower section assembly of claim 1, wherein, The sliding end is provided with a first dovetail groove, and a dovetail body is provided in the first dovetail groove.

3. The corrosion-resistant offshore wind turbine tower section assembly of claim 2, wherein, The first tower and the second tower are provided with symmetrically arranged arc-shaped plates on their exteriors. The inner wall of the arc-shaped plates is provided with a second dovetail groove that mates with the dovetail body, and the lower end of the second dovetail groove is through.

4. The corrosion resistant offshore wind tower drum assembly structure according to claim 1, characterized in that, An active area is formed in the second and third mounting ports. A blocking body is provided in the active area. A locking area is formed between the blocking body and the inner wall of the active area. A passage area is formed between the locking area and the active area. The blocking body is located in the passage area.

5. The corrosion-resistant offshore wind turbine tower section assembly according to claim 4, characterized in that The blocking body is provided with a guide slope.

6. The corrosion-resistant offshore wind turbine tower assembly structure according to claim 5, characterized in that, A strong magnet is provided in the installation area, and symmetrically arranged fixing blocks are provided on the inner wall of the installation area, with the fixing blocks located at the upper end of the strong magnet.

7. The corrosion-resistant offshore wind turbine tower assembly structure according to claim 6, characterized in that, The movable component consists of a movable section, a connecting section, and a locking section. The lower end of the movable section is provided with a notch that mates with the fixed block, and the locking section is provided with a contact slope that mates with the guide slope.

8. The corrosion-resistant offshore wind turbine tower assembly structure according to claim 7, characterized in that, The positioning block is provided with symmetrically arranged welding parts, and the welding parts are provided with limiting bodies extending into the installation area.

9. The corrosion-resistant offshore wind turbine tower assembly structure according to claim 8, characterized in that, The movable section is provided with symmetrically arranged notches, and a positioning post is provided in the notch. A spring is sleeved on the positioning post. The upper end of the spring contacts the lower end face of the limiting body, and the lower end contacts the inner wall of the notch.

10. The corrosion-resistant offshore wind turbine tower assembly structure according to claim 9, characterized in that, The diameters of the second and third mounting ports are greater than the distance between the moving section, the connecting section, and the locking section.

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