Prefabricated wind power mixed tower system and assembling method

Abstract

The invention discloses a prefabricated wind power mixed tower system and an assembling method. The prefabricated wind power mixed tower system comprises pipe pieces, a connecting assembly and an energy consumption assembly, and the multiple pipe pieces are spliced to form a mixed tower body; the connecting assembly is arranged between the two adjacent pipe pieces so as to fix the two adjacent pipe pieces; the energy dissipation assembly comprises a first plate and a second plate which are arranged in an overlapped mode, a part of section of at least one of the first plate and the second plate is an arc-shaped section, the first plate and the second plate can elastically deform and automatically reset, and the first plate and the second plate are each provided with a first end and a second end which are oppositely arranged in the first direction. The first end of the first plate and the first end of the second plate are connected with one of the two adjacent pipe pieces, and the second end of the first plate and the second end of the second plate are connected with the other one of the two adjacent pipe pieces. According to the embodiment of the invention, the overall structural stability is good, the assembling and connecting efficiency is high, the anti-seismic property is better, and the problems of freeze thawing and earthquake coupling damage in alpine regions are solved.

Description

Technical Field

[0001] This invention belongs to the field of wind power technology, specifically relating to a prefabricated wind power hybrid tower system and its assembly method. Background Technology

[0002] In the application of hybrid wind power towers in extremely cold regions, although the segments are prefabricated, the joints between the segments rely on on-site wet connections using materials such as cement mortar or epoxy resin. However, wet joints in extremely cold regions suffer from problems such as slow joint strength development, poor freeze-thaw durability, poor seismic performance, and frequent internal defects, which significantly impact the structural strength of the hybrid tower, affecting its load-bearing capacity and construction progress. Summary of the Invention

[0003] This invention is based on the inventor's discoveries and understanding of the following facts and problems: The inventors recognized that wet joints in related technologies severely delay the curing process of joint materials at low temperatures, resulting in a 7-day strength that is often less than 30% of the design value, making it difficult to meet assembly schedule requirements. Furthermore, because moisture easily penetrates the micropores of the joint, frost heave stress is generated under repeated freeze-thaw cycles, leading to cracks and misalignments, seriously affecting the overall structural safety.

[0004] The inventors also recognized that during the pouring of wet joints in related technologies, free water freezes, which can easily lead to quality problems such as honeycomb and voids, significantly weakening the load-bearing capacity of the joint area, thus greatly limiting the application of wet joints.

[0005] The present invention aims to at least partially solve one of the technical problems in the related art.

[0006] Therefore, embodiments of the present invention propose a prefabricated wind power hybrid tower system with good structural stability and high assembly efficiency.

[0007] An embodiment of the present invention also proposes an assembly method for a prefabricated wind power hybrid tower system.

[0008] The prefabricated wind power hybrid tower system of this invention includes: Tube segments, multiple tube segments spliced ​​together to form the main structure of the mixed tower; A connecting assembly is disposed between two adjacent segments to fix the two adjacent segments; An energy-dissipating component includes a first plate and a second plate stacked together, with a gap between a portion of one of the first plate and a portion of the other. Both the first plate and the second plate are elastically deformable and self-resetting. The first plate and the second plate each have a first end and a second end that are disposed opposite to each other in a first direction. The first end of the first plate and the second plate is connected to one of the two adjacent segments, and the second end of the first plate and the second plate is connected to the other of the two adjacent segments.

[0009] The prefabricated wind power hybrid tower system of this invention exhibits good overall structural stability. It does not employ wet connections during assembly; instead, rapid alignment and connection between adjacent segments are achieved through connecting components, resulting in high connection efficiency and avoiding the defects inherent in wet connections, thus ensuring the structural strength of the hybrid tower. Furthermore, the energy-dissipating components of this embodiment utilize the elastic deformation and self-resetting capabilities of the first and second plates to optimize the stress performance of the hybrid tower, resulting in better seismic resistance and solving the problem of freeze-thaw and seismic coupled damage in high-altitude and cold regions.

[0010] In some embodiments, the first and second ends of the second plate are attached to the first plate, and the middle section of the second plate in the first direction is bent toward a direction away from the first plate to form the gap, and both the first and second plates are shape memory alloys.

[0011] In some embodiments, in the first direction, the cross-sectional area of ​​the first plate orthogonal to the first direction gradually increases from the middle of the first plate to both ends of the first plate, and the middle of the first plate has a hollow portion.

[0012] In some embodiments, among the plurality of segments, a vertical joint is formed between a portion of two adjacent segments, and a circumferential joint is formed between another portion of two adjacent segments. The energy-consuming component includes a first energy-consuming component and a second energy-consuming component. The first energy-consuming component is connected to the circumferential joint, and the second energy-consuming component is connected to the vertical joint. In the first energy-consuming component, the dimension H of the first plate in the first direction is less than or equal to the dimension L of the first plate in the second direction. In the second energy-consuming component, the dimension H of the first plate in the first direction is greater than the dimension L of the first plate in the second direction. The second direction, the first direction, and the thickness direction of the first plate are orthogonal to each other.

[0013] In some embodiments, the first plate in the first energy-consuming component satisfies: L is greater than or equal to 1.2H and less than or equal to 2H, and the first plate in the second energy-consuming component satisfies: H is greater than or equal to 1.5L and less than or equal to 2L; And / or, in the first energy-consuming component, the dimension H1 of the hollow portion in the first direction satisfies: H1 is greater than or equal to 1 / 3H and less than or equal to 1 / 2H, and the dimension L1 of the hollow portion in the second direction satisfies: L1 is greater than or equal to 1 / 8L and less than or equal to 1 / 5L, and the first plate is provided with a plurality of hollow portions arranged side by side along the second direction; And / or, in the second energy-consuming component, the dimension H1 of the hollow portion in the first direction satisfies: H1 is greater than or equal to 1 / 3H and less than or equal to 1 / 2H, and the dimension L1 of the hollow portion in the second direction satisfies: L1 is greater than or equal to 1 / 5L and less than or equal to 1 / 3L; And / or, the projected area of ​​the first plate in the first energy-consuming component in a plane orthogonal to the thickness direction of the first plate is S1, and the projected area of ​​the first plate in the second energy-consuming component in a plane orthogonal to the thickness direction of the first plate is S2, where S1 is 3 to 5 times S2. And / or, the dimension L of the first plate in the first energy-consuming component in the second direction is 500mm to 650mm, and the dimension L of the first plate in the second energy-consuming component in the second direction is 150mm to 300mm; And / or, the hollowed-out portion is a diamond-shaped hole or an elliptical hole; And / or, the first plate has concave side grooves on both sides of the second direction, the side grooves being V-shaped, and the angle between the side of the side groove and the first direction being 10 degrees to 30 degrees.

[0014] In some embodiments, the segment includes a segment body and an outer protective plate, the outer protective plate being disposed on each side of the segment body facing adjacent segments, and the connecting assembly connecting the outer protective plates that are in contact between two adjacent segments.

[0015] In some embodiments, the segment body includes a concrete layer, an aerogel insulation layer, and a hydrophobic layer, wherein the hydrophobic layer is located outside the concrete layer, the aerogel insulation layer is located inside the concrete layer, or the aerogel insulation layer is located between the hydrophobic layer and the concrete layer.

[0016] In some embodiments, the aerogel insulation layer is a silica aerogel insulation layer, and the micropore size in the aerogel insulation layer is 2nm to 50nm. And / or, the thickness of the aerogel insulation layer is 1 / 8 to 1 / 10 of the thickness of the tube sheet body; And / or, the aerogel insulation layer is located inside the concrete layer, and the thickness of the concrete layer located outside the aerogel insulation layer is greater than 10 mm. And / or, the surface contact angle of the hydrophobic coating material used in the hydrophobic layer is greater than 150 degrees and the roll-off angle is less than 10 degrees.

[0017] In some embodiments, at least a portion of the inner edge of the outer protective plate on the tube segment extends out of the inner wall of the tube segment body to form a connection portion, the connection assembly is connected to the connection portion, the connection assembly includes a bolt, a nut and a damping element, the damping element is disposed between the end cap of the bolt and the corresponding outer protective plate, and / or between the nut and the corresponding outer protective plate, the damping element is a shape memory alloy and is butterfly-shaped; And / or, the connecting assembly includes a pre-embedded stud, the first end of the pre-embedded stud having a pre-embedded portion, the outer diameter of the pre-embedded portion being larger than the outer diameter of other sections of the pre-embedded stud, the first end of the pre-embedded stud being pre-embedded in one of two adjacent pipe segments, the second end of the pre-embedded stud being inserted into the other of two adjacent pipe segments, and a plurality of the pre-embedded studs being arranged spaced apart from each other along the side of the pipe segment; And / or, at least a portion of the outer protective plates between two adjacent segments are welded and fixed together.

[0018] The assembly method for a prefabricated wind power hybrid tower system according to embodiments of the present invention, used for assembling the prefabricated wind power hybrid tower system described in any of the above claims, includes: S1. Set up the assembly platform at the construction site; S2. Assemble the segments on the assembly platform to form a segment ring, and connect two adjacent segments in the circumferential direction of the segment ring and install the energy dissipation components. S3. The segment ring is hoisted to the installation position, and the installation of the segment ring is completed; S4. Repeat steps S2 and S3 to assemble the next segment ring and connect it with the previous segment ring until all segment rings are installed. S5. Carry out the construction of prestressed steel strands. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of a prefabricated wind power hybrid tower system according to an embodiment of the present invention.

[0020] Figure 2 This is a schematic diagram of an energy-consuming component according to an embodiment of the present invention.

[0021] Figure 3 This is a schematic diagram of the energy-consuming component from another perspective in an embodiment of the present invention.

[0022] Figure 4 This is a schematic diagram of the first plate in the first energy-consuming component of an embodiment of the present invention.

[0023] Figure 5This is a schematic diagram of the first plate in the second energy-consuming component of this embodiment of the invention.

[0024] Figure 6 This is a schematic diagram of the connection of multiple segments according to an embodiment of the present invention.

[0025] Figure 7 This is a schematic diagram of the connection component according to an embodiment of the present invention.

[0026] Figure 8 This is a schematic diagram of the segmentation of the tube according to an embodiment of the present invention.

[0027] Figure 9 This is a schematic diagram of the outer protective plate according to an embodiment of the present invention.

[0028] Figure 10 This is a schematic diagram of the tube segment body according to an embodiment of the present invention.

[0029] Figure 11 yes Figure 10 A schematic diagram of the AA direction.

[0030] Figure 12 This is a flowchart of the assembly method of the prefabricated wind power hybrid tower system according to an embodiment of the present invention.

[0031] Figure label: 100. Prefabricated wind power hybrid tower system; 1. Pipe segment; 11. Pipe segment body; 111. Concrete layer; 112. Aerogel insulation layer; 113. Hydrophobic layer; 12. Outer cladding; 121. Connection part; 13. Circumferential joint; 14. Vertical joint; 2. Connecting components; 21. Bolts; 22. Nuts; 23. Damping components; 24. Embedded bolts; 3. Energy-consuming component; 31. First plate; 311. Hollowed-out part; 312. Side groove; 32. Second plate; 33. First energy-consuming component; 34. Second energy-consuming component. Detailed Implementation

[0032] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0033] See Figures 1 to 11 The prefabricated wind power hybrid tower system 100 of this embodiment includes a pipe segment 1, a connecting component 2, and an energy-consuming component 3.

[0034] Segment 1 is a prefabricated segment, which can be prefabricated in the factory and then transported to the construction site for installation, thereby improving construction efficiency and ensuring the quality of segment 1 without being affected by factors such as climate and space at the construction site.

[0035] In this embodiment, multiple segments 1 are spliced ​​together to form the main body of the hybrid tower. The multiple segments 1 can be spliced ​​together circumferentially to form segment rings, and the multiple segment rings are stacked and fixed together vertically to form the main body of the hybrid tower. A joint is formed when two adjacent segments 1 abut against each other. During the splicing process, the joints on the two adjacent segment rings are staggered, which can better improve the structural stability of the main body of the hybrid tower.

[0036] The connecting component 2 is located between two adjacent pipe segments 1 to fix the two adjacent pipe segments 1. In this embodiment, wet connection can be achieved without the use of materials such as cement mortar and epoxy resin. The two pipe segments 1 are fixed through mechanical structure. Therefore, the assembly process is not affected by external environmental factors, and the practicality is better.

[0037] See Figure 2 and Figure 3 The energy-dissipating component 3 includes a first plate 31 and a second plate 32 stacked together. A gap exists between a portion of one of the first plates 31 and a portion of the other, allowing for different curvatures in the portions of the first plate 31 and the second plate 32. Both the first plate 31 and the second plate 32 can elastically deform and self-reset. For example, both the first plate 31 and the second plate 32 are made of shape memory alloy. Both the first plate 31 and the second plate 32 have a first end and a second end arranged opposite each other in a first direction. The first end of the first plate 31 and the second plate 32 is connected to one of two adjacent segments 1, and the second end of the first plate 31 and the second plate 32 is connected to the other of the two adjacent segments 1. When the main body of the hybrid tower deforms due to factors such as earthquakes or wind, the first plate 31 and the second plate 32 can elastically deform sequentially, thereby forming a composite energy-dissipating structure and improving the structural stability of the main body of the hybrid tower.

[0038] The prefabricated wind power hybrid tower system 100 of this embodiment exhibits good overall structural stability. During assembly, wet connections are not used; instead, the connecting component 2 enables rapid alignment and connection between adjacent segments 1, resulting in high connection efficiency. This avoids the defects inherent in wet connections and ensures the structural strength of the hybrid tower structure. Simultaneously, the energy-dissipating component 3 of this embodiment utilizes the elastic deformation and self-resetting capabilities of the first plate 31 and the second plate 32 to optimize the stress performance of the hybrid tower body, resulting in better seismic performance and solving the problem of freeze-thaw and earthquake-induced damage in cold regions.

[0039] Optionally, the first plate 31 can be a flat plate, and the second plate 32 has an arc-shaped section in the middle section in the first direction, thereby forming a gap between the middle section of the first plate 31 and the middle section of the second plate 32.

[0040] Optionally, the middle section of the first plate 31 in the first direction is an arc-shaped section, and the middle section of the second plate 32 in the first direction is an arc-shaped section. The degree of curvature of the arc-shaped section on the first plate 31 and the arc-shaped section on the second plate 32 are different, thereby forming a gap between the middle of the first plate 31 and the middle of the second plate 32.

[0041] See Figures 2 to 5 In some embodiments, the first plate 31 is parallel to the first direction and can be generally flat. The first plate 31 can be substantially in contact with the wall of the mixing tower body. The first end and the second end of the second plate 32 are in contact with the first plate 31. The middle section of the second plate 32 in the first direction is bent in a direction away from the first plate 31 to create a gap. Both the first plate 31 and the second plate 32 are shape memory alloys. When the mixing tower body swings and bends, the first plate 31 can first undergo elastic deformation. The bending degree of the middle section of the second plate 32 will decrease, and the middle section will gradually approach the first plate 31. When the bending of the mixing tower body exceeds a certain value, the second plate 32 will be straightened and undergo elastic deformation, thereby forming a composite energy-dissipating structure with the first plate 31 and improving the structural stability of the mixing tower body.

[0042] When external factors such as earthquakes and wind disappear, the main body of the hybrid tower can be reset under the self-resetting action of the first plate 31 and the second plate 32, reducing the damage to the main body and thus ensuring the structural stability of the main body. During this process, the first plate 31 and the second plate 32 can also reduce the swing amplitude and swing frequency of the main body of the hybrid tower during elastic deformation and self-resetting, making the main body of the hybrid tower more stable, reducing the force on the connecting component 2, avoiding loosening or damage to the connecting component 2, and improving its service life.

[0043] In some embodiments, in the first direction, the cross-sectional area of ​​the first plate 31 orthogonal to the first direction gradually increases from the middle of the first plate 31 to both ends of the first plate 31, and the middle of the first plate 31 has a hollow portion 311. This embodiment optimizes the structure of the first plate 31, thereby adjusting its elastic deformation capability. The first plate 31 can fully exert its energy-dissipating function in the initial stage of the mixing tower body's oscillation. Therefore, by optimizing the change in the cross-sectional area of ​​the first plate 31 in the first direction, the elastic deformation capability of the first plate 31 can be optimized, thereby improving the adjustment effect on the oscillation amplitude and oscillation frequency of the mixing tower body.

[0044] In this embodiment, a hollowed-out portion 311 can be provided in the middle of the first plate 31 to reduce the cross-sectional area of ​​the solid part in the middle of the first plate 31. By optimizing the size, shape, length-to-width ratio, etc. of the hollowed-out portion 311, the elastic deformation capacity of the first plate 31 can be matched with the anti-sway performance of the main body of the hybrid tower, and thus matched with the expected wind force level, earthquake level, etc. of the area, making it more practical.

[0045] In some embodiments, among the plurality of pipe segments 1, a vertical joint 14 is formed between some adjacent pipe segments 1, and a circumferential joint 13 is formed between other adjacent pipe segments 1. The energy dissipation component 3 includes a first energy dissipation component 33 and a second energy dissipation component 34. The first energy dissipation component 33 is connected at the circumferential joint 13 and is used to connect the joint between two adjacent pipe segments 1 in the vertical direction. The second energy dissipation component 34 is connected at the vertical joint 14 and is used to connect the joint between two adjacent pipe segments 1 in the horizontal direction. This embodiment can be optimized according to the different stress conditions borne by the second energy dissipation component 34 of the vertical joint 14 and the first energy dissipation component 33 of the circumferential joint 13 in actual applications.

[0046] Multiple first energy-consuming components 33 are arranged between two adjacent tube segments 1 in the vertical direction, and the multiple first energy-consuming components 33 are arranged at intervals. Multiple second energy-consuming components 34 are arranged between two adjacent tube segments 1 in the circumferential direction, and the multiple second energy-consuming components 34 are arranged at intervals.

[0047] In the first energy-consuming component 33, the dimension H of the first plate 31 in the first direction is less than or equal to the dimension L of the first plate 31 in the second direction. In the second energy-consuming component 34, the dimension H of the first plate 31 in the first direction is greater than the dimension L of the first plate 31 in the second direction. The second direction, the first direction and the thickness direction of the first plate 31 are orthogonal to each other.

[0048] In this embodiment, the thickness direction of the first plate 31 is the third direction shown in the figure.

[0049] See Figure 4 and Figure 5 Furthermore, the first plate 31 in the first energy-consuming component 33 satisfies the following condition: L is greater than or equal to 1.2H and less than or equal to 2H. For example, the dimension L of the first plate 31 in the second direction in the first energy-consuming component 33 is 1.2H, 1.3H, 1.46H, 1.7H, or 2H. The first plate 31 in the second energy-consuming component 34 satisfies the following condition: H is greater than or equal to 1.5L and less than or equal to 2L. For example, the dimension L of the first plate 31 in the second direction in the second energy-consuming component 34 is 1.5H, 1.55H, 1.6H, 1.7H, or 2H.

[0050] This embodiment optimizes the ratio of the first plate 31 in the first energy-consuming component 33 and the second energy-consuming component 34 in the first and second directions, thereby meeting the preset elastic deformation requirements. When the main body of the mixing tower swings, it optimizes the force between two vertically adjacent tube segments 1 and the force between two horizontally adjacent tube segments 1. When L in the first energy-consuming component 33 is greater than 2H, the size of a single component becomes too large, making assembly inconvenient and difficult to fit against the outer wall of the mixing tower main body. When L in the first energy-consuming component 33 is greater than 1.2H, the elastic deformation and self-resetting capabilities of a single first energy-consuming component 33 are relatively weak. To meet the connection stability between two adjacent tube segments 1 at the circumferential joint 13, too many first energy-consuming components 33 are required, which is also not conducive to assembly. At the same time, it optimizes the number of first energy-consuming components 33 and the performance of individual components, improves assembly efficiency, and allows multiple first energy-consuming components 33 to be arranged spaced apart from each other along the circumferential joint 13. The distance between adjacent first energy-consuming components 33 is moderate, resulting in better stability.

[0051] Similarly, in this embodiment, by optimizing the ratio of the first plate 31 in the first direction and the second direction, the number of second energy-consuming components 34 and the performance of individual components can be optimized, improving assembly efficiency. Multiple second energy-consuming components 34 can be arranged at intervals along the vertical joint 14, with a moderate distance between adjacent second energy-consuming components 34, resulting in better stability.

[0052] See Figure 4 and Figure 5 In the first energy-consuming component 33, the dimension H1 of the hollow portion 311 in the first direction satisfies the following: H1 is greater than or equal to 1 / 3H and less than or equal to 1 / 2H. For example, the dimension H1 of the hollow portion 311 in the first direction is 1 / 3H, 2 / 5H, or 1 / 2H. The dimension L1 of the hollow portion 311 in the second direction satisfies the following: L1 is greater than or equal to 1 / 8L and less than or equal to 1 / 5L. The first plate 31 is provided with a plurality of hollow portions 311 arranged side by side along the second direction. For example, the dimension L1 of the hollow portion 311 in the second direction is 1 / 8L, 1 / 7L, 1 / 6L, or 1 / 5L. This embodiment, by constraining the dimension of the hollow portion 311 in the first energy-consuming component 33, can optimize the proportional dimension of the hollow portion 311 to the first plate 31, and optimize the dimension of a single hollow portion 311 in the first and second directions. This ensures a smoother deformation curve when the first plate 31 undergoes elastic deformation, improves the stability of the first plate 31, and avoids breakage of the first plate 31.

[0053] See Figure 4 and Figure 5In the second energy-consuming component 34, the dimension H1 of the hollow portion 311 in the first direction satisfies the following: H1 is greater than or equal to 1 / 3H and less than or equal to 1 / 2H. For example, the dimension H1 of the hollow portion 311 in the first direction is 1 / 3H, 2 / 5H, or 1 / 2H. The dimension L1 of the hollow portion 311 in the second direction satisfies the following: L1 is greater than or equal to 1 / 5L and less than or equal to 1 / 3L. For example, the dimension L1 of the hollow portion 311 in the second direction is 1 / 5L, 1 / 4L, or 1 / 3L. By constraining the dimension of the hollow portion 311 in the second energy-consuming component 34, this embodiment can optimize the proportional dimension between the hollow portion 311 and the first plate 31, and optimize the dimension of a single hollow portion 311 in the first and second directions. This ensures a smoother deformation curve when the first plate 31 undergoes elastic deformation, improves the stability of the first plate 31, and prevents the first plate 31 from breaking.

[0054] The projected area of ​​the first plate 31 in the first energy-consuming component 33 in a plane orthogonal to the thickness direction of the first plate 31 is S1, and the projected area of ​​the first plate 31 in the second energy-consuming component 34 in a plane orthogonal to the thickness direction of the first plate 31 is S2, where S1 is 3 to 5 times S2. In other words, in this embodiment, the volume of the first plate 31 in the first energy-consuming component 33 is 3, 3.5, 4, or 5 times the volume of the first plate 31 in the second energy-consuming component 34. This makes the performance of the first energy-consuming component 33 and the second energy-consuming component 34 better matched with the forces between two adjacent segments 1 at the circumferential joint 13 and between two adjacent segments 1 at the vertical joint 14.

[0055] In the first energy-dissipating component 33, the dimension L of the first plate 31 in the second direction is 500mm to 650mm. For example, the dimension L of the first plate 31 in the second direction is 500mm, 550mm, 560mm, 600mm, or 650mm. In the second energy-dissipating component 34, the dimension L of the first plate 31 in the second direction is 150mm to 300mm. For example, the dimension L of the first plate 31 in the second direction is 150mm, 180mm, 195mm, 240mm, or 300mm. Therefore, in this embodiment, the first plate 31 has sufficient overlap area when connected to the segment 1, which can improve the stability of the connection structure and prevent the segment 1 from breaking due to the connection structure being too close to the edge of the segment 1.

[0056] Optionally, the first plate 31 in the first energy-consuming component 33 has a dimension L of 560 mm in the second direction and a dimension H of 400 mm in the first direction. The hollow portion 311 in the first energy-consuming component 33 can be a diamond-shaped hole or an elliptical hole, preferably a diamond-shaped hole, in which case the dimension L1 of the hollow portion 311 in the second direction is 80 mm and the dimension H1 in the first direction is 200 mm.

[0057] The first plate 31 in the second energy-consuming component 34 has a dimension L of 180 mm in the second direction and a dimension H of 300 mm in the first direction. The hollow part 311 in the second energy-consuming component 34 can be a diamond-shaped hole or an elliptical hole. It is preferred to use a diamond-shaped hole. Then the dimension L1 of the hollow part 311 in the second direction is 60 mm and the dimension H1 in the first direction is 200 mm.

[0058] Furthermore, the first plate 31 has concave side grooves 312 on both sides in the second direction. The side grooves 312 are V-shaped, and the two sides of the side grooves 312 are arranged symmetrically. The angle β between the side of the side groove 312 and the first direction is 10 degrees to 30 degrees. For example, the angle between the side of the side groove 312 and the first direction is 10 degrees, 15 degrees, 25 degrees, or 30 degrees.

[0059] See Figures 6 to 9 In some embodiments, the segment 1 includes a segment body 11 and an outer protective plate 12. The outer protective plate 12 is disposed on each side of the segment body 11 facing the adjacent segment body 11, and the connecting assembly 2 is connected between the outer protective plates 12 that are in contact between two adjacent segments 1.

[0060] The outer protective plate 12 can be a metal plate, such as a steel plate. During manufacturing, the outer protective plate 12, made of steel plate, is fixedly connected to the segment body 11. For example, during the casting of the segment body 11, the outer protective plate 12 can be used as a template placed on the side. Simultaneously, stiffening plates extending to the middle of the segment body 11 can be provided on the outer protective plate 12. After the segment body 11 is cast and cured, the bond strength between the outer protective plate 12 and the segment body 11 is higher, preventing separation. The connecting component 2, by connecting with the outer protective plate 12, forms a mechanical connection structure, thereby ensuring the overall structural stability. Wet connections are not required, making it well-suited to cold-climate environments. The outer protective plate 12 also protects the segment 1, preventing damage to the contact surface and improving the sealing performance and stability of the joint. The connection hole positions on the outer protective plate 12 have better accuracy, improving the stability and alignment accuracy of the connection structure during connection.

[0061] In this embodiment, the outer protective plate 12 provides a protective layer for the segment body 11, which solves the problem of easy collision and damage to the segment 1 during transportation and hoisting. At the same time, it alleviates the problem of local stress concentration at the joint between segments 1, fundamentally preventing the quality risk of local concrete falling off and detaching from the segment 1, and thus improving reliability.

[0062] See Figure 10 and Figure 11Furthermore, the segment body 11 includes a concrete layer 111, an aerogel insulation layer 112, and a hydrophobic layer 113. The hydrophobic layer 113 is located outside the concrete layer 111, and the aerogel insulation layer 112 is located inside the concrete layer 111, or the aerogel insulation layer 112 is located between the hydrophobic layer 113 and the concrete layer 111.

[0063] Concrete layer 111 can be made of concrete of grade C80 or above.

[0064] The aerogel insulation layer 112 is a silica aerogel insulation layer 112. Aerogel composite materials have good hydrophobicity, effectively preventing water vapor from penetrating the insulation layer and causing insulation failure, thus providing excellent heat insulation and heat retention for the mixing tower. The micropore size within the aerogel insulation layer 112 is 2nm to 50nm; for example, the micropore size within the aerogel insulation layer 112 can be 2nm, 15nm, 28nm, 40nm, or 50nm. The thermal conductivity of the aerogel insulation layer 112 is affected by the pore size. By optimizing the pore size of the aerogel insulation layer 112, the insulation effect can be improved, effectively suppressing the transfer of heat through conduction, convection, and radiation. Simultaneously, the aerogel insulation layer 112 has better pressure resistance. The thickness of the aerogel insulation layer 112 is 1 / 8 to 1 / 10 of the thickness of the tube sheet body 11, and the thickness of the aerogel insulation layer 112 can be 20mm to 50mm.

[0065] When the aerogel insulation layer 112 is located inside the concrete layer 111, and the thickness of the concrete layer 111 located outside the aerogel insulation layer 112 is greater than 10mm, the structural stability of the concrete layer 111 is ensured, and the aerogel insulation layer 112 and the concrete layer 111 are connected as one, resulting in better structural stability.

[0066] In this embodiment, the hydrophobic coating material used in the hydrophobic layer 113 has a surface contact angle greater than 150 degrees and a roll-off angle less than 10 degrees. The hydrophobic layer 113 can be a superhydrophobic nano-coating. By mimicking the "lotus effect" in nature, the superhydrophobic nano-coating, through the combined action of a special micro-nano structure and low surface energy chemical substances, gives the mixing tower surface extremely strong hydrophobic, oleophobic, and self-cleaning properties. The superhydrophobic nano-coating can be de-iced by electrothermal or photothermal methods. If electrothermal de-icing is used, the temperature needs to rise to above 100°C within 200 seconds after voltage is applied; if photothermal de-icing is used, the coating temperature needs to rise to above 100°C within 800 seconds.

[0067] In this embodiment, the aerogel insulation layer 112 and the superhydrophobic nano-coating 113 can effectively block moisture penetration and improve freeze-thaw resistance.

[0068] In some embodiments, at least a portion of the inner edge of the outer protective plate 12 on the segment 1 extends beyond the inner wall of the segment body 11 to form a connecting portion 121. For example, connecting portions 121 are arranged on the outer protective plates 12 on both sides in the vertical direction of the segment 1, or connecting portions 121 are provided on all the outer protective plates 12 in the circumferential direction of the segment 1. In other words, the edge of the outer protective plate 12 near the middle of the mixing tower body extends towards the middle of the mixing tower body beyond the inner wall of the segment 1 body, thereby forming a flange edge. This flange edge is constructed as a connecting portion 121, and connecting holes are provided on the two corresponding connecting portions 121. The area of ​​the connecting portion 121 can be thickened to improve structural strength and prevent deformation. The connecting assembly 2 is connected to the connecting portion 121 between two adjacent pipe segments 1. The connecting assembly 2 includes a bolt 21, a nut 22, and a damping element 23. The damping element 23 is disposed between the end cap of the bolt 21 and the corresponding outer protective plate 12, and / or between the nut 22 and the corresponding outer protective plate 12. The damping element 23 is made of shape memory alloy and is butterfly-shaped. When the bolt 21 and nut 22 are tightened, a certain preload can be applied to the damping element 23. Through the expansion and contraction of the damping element 23 made of shape memory alloy, the load-bearing capacity of the bolt 21 can be improved. Furthermore, energy is dissipated through the elastic deformation and self-resetting of the damping element 23, thus optimizing the stress performance of the bolt 21 and the stability of the tower. At the same time, energy can also be dissipated by the contact surface friction between the bolt 21 and the damping element 23.

[0069] In this embodiment, the bolt 21 can be a high-strength bolt 21, and the damping element 23 can be formed by stacking multiple parts. For example, two shape memory alloy parts in the shape of a frustum can be stacked together to form a damping element 23.

[0070] In this embodiment, the outer protective plate 12 is provided with multiple connection holes, so that two adjacent pipe segments 1 are connected together by multiple bolts. The interval between two adjacent connection holes can be determined according to the structural strength, load-bearing capacity, etc. of the wind power hybrid tower system, thereby ensuring the structural stability between the pipe segments after connection.

[0071] Furthermore, the connecting assembly 2 also includes a pre-embedded stud 24. The first end of the pre-embedded stud 24 has a pre-embedded portion, the outer diameter of which is larger than the outer diameter of other sections of the pre-embedded stud. The first end of the pre-embedded stud 24 is pre-embedded in one of two adjacent segments 1, and the second end of the pre-embedded stud 24 is inserted into the other of two adjacent segments 1. Multiple pre-embedded studs 24 are arranged spaced apart from each other along the side of the segments. For example, in two segments 1 in the vertical direction, part of the pre-embedded stud 24 is pre-embedded in the lower segment 1. The free end of the pre-embedded stud 24 extends out of the outer protective plate 12 in the lower segment 1 and is welded and fixed to the outer protective plate 12 on the lower segment 1. The first end of the pre-embedded stud 24 can be generally T-shaped, thus forming the pre-embedded portion. When the pre-embedded portion is pre-embedded in the segment, the pull-out resistance of the pre-embedded stud 24 can be improved. The pre-embedded stud 24 can enhance the horizontal shear force between layers and suppress interlayer displacement. The outer protective plate 12 of the upper segment 1 is provided with positioning holes, which can extend into the concrete layer 111 of the segment body 11 to increase the insertion depth. The free end of the pre-embedded bolt 24 can be inserted into the positioning hole on the upper segment 1. When connecting two adjacent segments 1, the pre-embedded bolt 24 can be used to position the two segments 1, achieving precise positioning and preliminary fixation, and improving assembly efficiency. Of course, a slot communicating with the positioning hole can also be provided on the side of the upper segment 1. The welding gun can weld the pre-embedded bolt 24 and the outer protective plate 12 of the upper segment 1 together through the slot, or a nut 22 can be connected to the free end of the pre-embedded bolt 24 to fix the pre-embedded bolt 24 to the upper segment 1.

[0072] In this embodiment, there are multiple embedded anchors 24 between two adjacent pipe segments 1. The distance between two adjacent embedded anchors 24 can be determined according to the structural strength requirements of the wind power hybrid tower. For example, when multiple embedded anchors 24 are arranged between two adjacent pipe segments 1, the central angle between two adjacent embedded anchors 24 is 1 degree to 10 degrees. Preferably, the circular angle between two adjacent embedded anchors 24 is 1 degree to 2 degrees.

[0073] Optionally, when arranging the pre-embedded anchors 24 between two adjacent segments 1, some of the pre-embedded anchors 24 are embedded in one segment 1, and the other part is embedded in the other segment 1, with the pre-embedded anchors 24 in one segment 1 and the pre-embedded anchors 24 in the other segment 1 arranged alternately. This results in better structural stability after connection.

[0074] In this embodiment, the outer protective plates 12 that are in contact with each other between two adjacent pipe segments 1 are partially welded and fixed, or the joint between the outer protective plates 12 that are in contact with each other is fully welded and fixed. This can assist the bolts 21 in fixing the two adjacent pipe segments 1, resulting in better overall stability.

[0075] See Figure 12 The prefabricated wind power hybrid tower system assembly method of this invention, used for assembling any of the prefabricated wind power hybrid tower systems described above, includes: S1. Set up the assembly platform at the construction site. After the basic acceptance and handover work is carried out, construction organization and resource preparation are carried out. The foundation of the construction site is hardened to ensure that the distance between the assembly platform and the tower is appropriate, thereby facilitating the assembly of segment 1, improving the convenience of operation, and ensuring the quality of assembly.

[0076] S2. Assemble the tunnel segments 1 on the assembly platform to form a tunnel segment ring, and connect adjacent tunnel segments 1 in the circumferential direction of the tunnel segment ring and install the energy dissipation components 3. Three, four, or five tunnel segments 1 can be connected end to end in the circumferential direction to form a tunnel segment ring. The height of the tunnel segment ring can be 2.4m to 3.2m. After alignment, connect adjacent tunnel segments 1 through the connecting components 2 and the second energy dissipation components 34 to ensure the structural stability of the tunnel segment ring.

[0077] S3. Segment ring hoisting refers to the installation position where the segment ring installation has been completed. After a segment ring assembly is completed, it is hoisted to the installation position using hoisting equipment for installation and fixation.

[0078] S4. Repeat steps S2 and S3 to assemble the next segment ring and connect it to the previous segment ring, until all segment rings are installed. During this process, it is necessary to ensure the segment rings are aligned, and a circumferential joint 13 is formed between adjacent segment rings. Adjacent segment rings are connected and fixed together by connecting component 2 and the first energy dissipation component 33. According to the actual height design requirements of the hybrid tower body, the segment rings are assembled layer by layer until all segment rings are assembled and installed, forming the hybrid tower body.

[0079] S5. Prestressed steel strand construction is carried out, which enables different sections of the mixed tower body to be fixed by tensioning the prestressed steel strands, thereby improving the stability of the mixed tower body.

[0080] In this embodiment, during the construction of the hybrid tower, the connection between segments and the connection between segment rings can be carried out in an orderly manner. The connecting components, the first energy-consuming component, and the second energy-consuming component can be installed in an orderly manner, resulting in high installation efficiency and good practicality.

[0081] After the main construction of the hybrid tower is completed, acceptance work can be carried out, followed by the installation of the transition section and steel tower tube, the nacelle and impeller. Finally, after passing the acceptance, it can be connected to the grid for operation.

[0082] This embodiment can realize a completely dry connection system, completely eliminating wet operations. At the same time, through the triple force transmission mechanism of external steel plate, bolts, and energy-consuming components, it can achieve all-weather construction in extremely cold environments below -30℃. The prefabricated wind power hybrid tower system in this embodiment has good seismic toughness. Energy-dissipating components are arranged at the joints and constructed as energy-dissipating dampers to solve the problem of coupled damage between freeze-thaw cycles and earthquakes in hybrid towers in high-altitude and cold regions. It achieves dual insurance of damping energy dissipation and mechanical anchoring, resulting in good stability.

[0083] This embodiment designs the materials and structure of the tunnel segments, achieving synergistic innovation in materials and structure. Through three-layer gradient functional concrete tunnel segments, it realizes an integrated design of compressive strength, thermal insulation, and waterproofing. In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0084] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0085] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0086] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0087] In this invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0088] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A prefabricated wind power hybrid tower system, characterized in that, include: Tube segments, multiple tube segments spliced ​​together to form the main structure of the mixed tower; A connecting assembly is disposed between two adjacent segments to fix the two adjacent segments; An energy-dissipating component includes a first plate and a second plate stacked together, with a gap between a portion of one of the first plate and a portion of the other. Both the first plate and the second plate are elastically deformable and self-resetting. The first plate and the second plate each have a first end and a second end that are disposed opposite to each other in a first direction. The first end of the first plate and the second plate is connected to one of the two adjacent segments, and the second end of the first plate and the second plate is connected to the other of the two adjacent segments.

2. The prefabricated wind power hybrid tower system according to claim 1, characterized in that, The first and second ends of the second plate are attached to the first plate, and the middle section of the second plate in the first direction is bent in a direction away from the first plate to form the gap. Both the first plate and the second plate are shape memory alloys.

3. The prefabricated wind power hybrid tower system according to claim 2, characterized in that, In the first direction, the cross-sectional area of ​​the first plate orthogonal to the first direction gradually increases from the middle of the first plate to both ends of the first plate, and the middle of the first plate has a hollow portion.

4. The prefabricated wind power hybrid tower system according to claim 3, characterized in that, In some of the aforementioned segments, vertical joints are constructed between a portion of adjacent segments, while circumferential joints are constructed between another portion of adjacent segments. The energy-consuming component includes a first energy-consuming component and a second energy-consuming component. The first energy-consuming component is connected to the circumferential joint, and the second energy-consuming component is connected to the vertical joint. In the first energy-consuming component, the dimension H of the first plate in the first direction is less than or equal to the dimension L of the first plate in the second direction. In the second energy-consuming component, the dimension H of the first plate in the first direction is greater than the dimension L of the first plate in the second direction. The second direction, the first direction, and the thickness direction of the first plate are orthogonal to each other.

5. The prefabricated wind power hybrid tower system according to claim 4, characterized in that, The first plate in the first energy-consuming component satisfies: L is greater than or equal to 1.2H and less than or equal to 2H; the first plate in the second energy-consuming component satisfies: H is greater than or equal to 1.5L and less than or equal to 2L. And / or, in the first energy-consuming component, the dimension H1 of the hollow portion in the first direction satisfies: H1 is greater than or equal to 1 / 3H and less than or equal to 1 / 2H, and the dimension L1 of the hollow portion in the second direction satisfies: L1 is greater than or equal to 1 / 8L and less than or equal to 1 / 5L, and the first plate is provided with a plurality of hollow portions arranged side by side along the second direction; And / or, in the second energy-consuming component, the dimension H1 of the hollow portion in the first direction satisfies: H1 is greater than or equal to 1 / 3H and less than or equal to 1 / 2H, and the dimension L1 of the hollow portion in the second direction satisfies: L1 is greater than or equal to 1 / 5L and less than or equal to 1 / 3L; And / or, the projected area of ​​the first plate in the first energy-consuming component in a plane orthogonal to the thickness direction of the first plate is S1, and the projected area of ​​the first plate in the second energy-consuming component in a plane orthogonal to the thickness direction of the first plate is S2, where S1 is 3 to 5 times S2. And / or, the dimension L of the first plate in the first energy-consuming component in the second direction is 500mm to 650mm, and the dimension L of the first plate in the second energy-consuming component in the second direction is 150mm to 300mm; And / or, the hollowed-out portion is a diamond-shaped hole or an elliptical hole; And / or, the first plate has concave side grooves on both sides of the second direction, the side grooves being V-shaped, and the angle between the side of the side groove and the first direction being 10 degrees to 30 degrees.

6. The prefabricated wind power hybrid tower system according to any one of claims 1 to 5, characterized in that, The segment includes a segment body and an outer protective plate. The outer protective plate is disposed on each side of the segment body facing the adjacent segment body. The connecting assembly is connected between the outer protective plates that are in contact with each other between two adjacent segments.

7. The prefabricated wind power hybrid tower system according to claim 6, characterized in that, The segment body includes a concrete layer, an aerogel insulation layer, and a hydrophobic layer. The hydrophobic layer is located outside the concrete layer, and the aerogel insulation layer is located inside the concrete layer, or the aerogel insulation layer is located between the hydrophobic layer and the concrete layer.

8. The prefabricated wind power hybrid tower system according to claim 7, characterized in that, The aerogel insulation layer is a silica aerogel insulation layer, and the micropore diameter in the aerogel insulation layer is 2nm to 50nm. And / or, the thickness of the aerogel insulation layer is 1 / 8 to 1 / 10 of the thickness of the tube sheet body; And / or, the aerogel insulation layer is located inside the concrete layer, and the thickness of the concrete layer located outside the aerogel insulation layer is greater than 10 mm; And / or, the surface contact angle of the hydrophobic coating material used in the hydrophobic layer is greater than 150 degrees and the roll-off angle is less than 10 degrees.

9. The prefabricated wind power hybrid tower system according to claim 6, characterized in that, At least a portion of the outer protective plate on the tube segment extends from the inner wall of the tube segment body to form a connection part. The connection assembly is connected to the connection part. The connection assembly includes a bolt, a nut, and a damping element. The damping element is disposed between the end cap of the bolt and the corresponding outer protective plate, and / or between the nut and the corresponding outer protective plate. The damping element is a shape memory alloy and is butterfly-shaped. And / or, the connecting assembly includes a pre-embedded stud, the first end of the pre-embedded stud having a pre-embedded portion, the outer diameter of the pre-embedded portion being larger than the outer diameter of other sections of the pre-embedded stud, the first end of the pre-embedded stud being pre-embedded in one of two adjacent pipe segments, the second end of the pre-embedded stud being inserted into the other of two adjacent pipe segments, and a plurality of the pre-embedded studs being arranged spaced apart from each other along the side of the pipe segment; And / or, at least a portion of the outer protective plates between two adjacent segments are welded and fixed together.

10. A method for assembling a prefabricated wind power hybrid tower system, used for assembling the prefabricated wind power hybrid tower system as described in any one of claims 1 to 9, characterized in that, include: S1. Set up the assembly platform at the construction site; S2. Assemble the segments on the assembly platform to form a segment ring, and connect two adjacent segments in the circumferential direction of the segment ring and install the energy dissipation components. S3. The segment ring is hoisted to the installation position, and the installation of the segment ring is completed; S4. Repeat steps S2 and S3 to assemble the next segment ring and connect it with the previous segment ring until all segment rings are installed. S5. Carry out the construction of prestressed steel strands.

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