Novel fully-assembled wind power tower structure and construction method

Abstract

The invention relates to a novel full-assembly type wind power tower structure and a construction method, and belongs to the technical field of power generation towers, the novel full-assembly type wind power tower structure comprises concrete towers (1), the concrete towers (1) are assembled up and down to form a tower, and each concrete tower (1) is formed by assembling a first concrete tower piece (2) and a second concrete tower piece (3) left and right; splicing plates (4) are respectively arranged on the vertical connecting surfaces of the first concrete tower piece (2) and the second concrete tower piece (3), and connecting holes are formed in the splicing plates (4). According to the novel full-assembly type wind power tower structure and the construction method, on the basis that the advantages that a traditional full-assembly type wind power tower is convenient to construct, controllable in quality and the like are kept, the performance and efficiency of the wind power tower are further improved by adopting left and right tower piece splicing, flange connection and variable cross-section design; and new vitality is injected for the development of the wind power generation industry.

Description

Technical Field

[0001] The invention belongs to the technical field of wind power tower construction, and in particular to a novel fully assembled wind power tower structure and a construction method. Background Art

[0002] In the context of global energy transformation and sustainable development, wind energy, as a clean and renewable energy, is gradually becoming an important part of energy supply. As the key supporting structure of wind turbines, the design optimization and technological innovation of wind turbine towers are of great significance to improving wind power generation efficiency, reducing costs and enhancing structural stability.

[0003] Traditional wind turbine towers are often designed with a single columnar structure, with cross-sectional dimensions that remain consistent or vary slightly throughout the entire tower height. However, this design approach may have certain limitations when dealing with complex climate conditions and wind loads. In order to improve the adaptability and carrying capacity of wind turbine towers, a variety of new designs have emerged in recent years, among which fully assembled wind turbine towers have attracted much attention due to their modular and standardized design concepts.

[0004] Chinese patent CN116146431A discloses a prestressed concrete steel structure composite wind power tower, which belongs to the field of wind power generation technology. It solves the problems that the existing device cannot transport the tower body in sections, cannot assist in straightening the tower body during installation, and cannot be fixed in time after straightening. The prestressed concrete steel structure composite wind power tower includes a base, a straightening ring is fixed on the base, and the inner ring of the straightening ring is provided with a lower concrete tower section. The top of the lower concrete tower section is fixed with a steel flange by strong bolts, and the upper concrete tower section is fixed on the steel flange. The top of the upper concrete tower section is fixed with a flange. The concrete tower section of this technology is still too large, which is not convenient for transportation and hoisting. Summary of the invention

[0005] A novel fully assembled wind power tower structure comprises a concrete tower. The concrete tower is assembled from top to bottom to form a tower. The concrete tower is assembled from left to right by a first concrete tower piece and a second concrete tower piece. Splicing plates are respectively provided on the vertical connection surfaces of the first concrete tower piece and the second concrete tower piece, and connecting holes are provided on the splicing plates.

[0006] The first concrete tower piece and the second concrete tower piece are respectively provided with flanges at the top and the bottom. The upper and lower flanges of the spliced ​​concrete tower are connected by bolts to obtain a tower frame.

[0007] First stiffening ribs are respectively arranged between the flange and the first concrete tower piece and the second concrete tower piece.

[0008] Second stiffening ribs are respectively arranged between the splicing plate and the first concrete tower piece and the second concrete tower piece.

[0009] The concrete tower is a variable-section column.

[0010] The construction method of the novel fully assembled wind turbine tower structure adopts reinforced concrete to prefabricate the first concrete tower segment and the second concrete tower segment, and vertically connects the splicing plates between the first concrete tower segment and the second concrete tower segment, connects the flanges on the upper and lower sides, and transports the first concrete tower segment and the second concrete tower segment to the site for assembly to obtain the concrete tower, and assembles the concrete towers from bottom to top according to the size of the variable-section column to obtain the wind turbine tower.

[0011] The fully assembled wind power tower of the present invention uses prefabricated tower pieces to be assembled on site through a specific connection method, which further reduces transportation costs and hoisting difficulties, shortens the construction period, and reduces construction difficulty and costs. In the present invention, the significant feature is that the upper and lower tower pieces and the left and right tower pieces are assembled using bolts, and the cross-section of the tower gradually decreases with the increase of height. In the wind power tower of the present invention, the upper and lower tower pieces are tightly connected together through flanges to form a stable and reliable support system. At the same time, since the cross-section of the tower gradually decreases, this design not only optimizes the structural force of the tower and improves the overall stability, but also effectively reduces the amount of material used and reduces manufacturing costs. In summary, the new fully assembled wind power tower structure and construction method proposed in the present invention, while maintaining the advantages of convenient construction and controllable quality of the traditional fully assembled wind power tower, further improves the performance and efficiency of the wind power tower by adopting left and right tower piece assembly, flange connection and variable cross-section design, and injects new vitality into the development of the wind power generation industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional schematic diagram of the full assembly of the present invention; Figure 2 A three-dimensional schematic diagram of the assembly and connection of the upper and lower tower sections of the present invention; Figure 3 It is a front view schematic diagram of the assembly connection of the upper and lower tower sections of the present invention; Figure 4 It is a right side schematic diagram of the assembly connection of the upper and lower tower sections of the present invention; Explanation of the reference numerals: 1-concrete tower, 2-first concrete tower segment, 3-second concrete tower segment, 4-joining plate, 5-flange, 6-first stiffening rib, 7-second stiffening rib. Specific implementation methods

[0013] In order to make the purpose, technical solutions and advantages of the invention more clear, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. Example

[0014] The present invention Figures 1 to 4As shown, a novel fully assembled wind power tower structure includes a concrete tower 1, which is assembled from top to bottom to form a tower. The concrete tower 1 is assembled from left to right by a first concrete tower piece 2 and a second concrete tower piece 3. Splicing plates 4 are respectively provided on the vertical connection surfaces of the first concrete tower piece 2 and the second concrete tower piece 3, and connecting holes are provided on the splicing plates 4. The design of the first concrete tower piece 2 and the second concrete tower piece 3 reduces the volume of each component, compresses the transportation space, and can further reduce the transportation and hoisting costs. The above components are assembled and combined with each other to form a novel fully assembled wind power tower structure.

[0015] The first concrete tower piece 2 and the second concrete tower piece 3 are respectively provided with flange plates 5 at the upper and lower parts. The upper and lower flange plates 5 of the spliced ​​concrete tower 1 are connected by bolts to obtain a tower frame.

[0016] First stiffening ribs 6 are provided between the flange 5 and the first concrete tower piece 2 and the second concrete tower piece 3 .

[0017] Second stiffening ribs 7 are provided between the splicing plate 4 and the first concrete tower piece 2 and the second concrete tower piece 3 .

[0018] The concrete tower 1 is a variable cross-section column. The flange 5 of each section of the concrete tower 1 will change with the cross-section size.

[0019] The construction method of the novel fully assembled wind power tower structure adopts reinforced concrete to prefabricate the first concrete tower segment 2 and the second concrete tower segment 3, and vertically connects the splicing plate 4 to the first concrete tower segment 2 and the second concrete tower segment 3, and connects the flange 5 on the upper and lower sides, and transports the first concrete tower segment 2 and the second concrete tower segment 3 to the site for assembly to obtain the concrete tower 1, and assembles the concrete tower 1 from bottom to top according to the size of the variable cross-section column to obtain the wind power tower. Example

[0020] A novel fully assembled wind power tower structure includes a concrete tower 1, which is assembled from top to bottom to form a tower. The concrete tower 1 is assembled from left to right by a first concrete tower piece 2 and a second concrete tower piece 3. Splicing plates 4 are respectively provided on the vertical connection surfaces of the first concrete tower piece 2 and the second concrete tower piece 3, and connecting holes are provided on the splicing plates 4. The design of the first concrete tower piece 2 and the second concrete tower piece 3 reduces the volume of each component, compresses the transportation space, and can further reduce the transportation and hoisting costs. The above components are assembled and combined with each other to form a novel fully assembled wind power tower structure.

[0021] The first concrete tower piece 2 and the second concrete tower piece 3 are respectively provided with flange plates 5 at the upper and lower parts. The upper and lower flange plates 5 of the spliced ​​concrete tower 1 are connected by bolts to obtain a tower frame.

[0022] The construction method of the new fully assembled wind power tower structure is the same as that of Example 1.

Claims

1. A novel fully assembled wind power tower structure, comprising a concrete tower (1), wherein the concrete tower (1) is assembled from top to bottom to obtain a tower, characterized in that: The concrete tower (1) is assembled from a first concrete tower piece (2) and a second concrete tower piece (3) on the left and right, and vertical connection surfaces of the first concrete tower piece (2) and the second concrete tower piece (3) are respectively provided with a splicing plate (4), and connection holes are provided on the splicing plate (4).

2. The novel fully assembled wind power tower structure according to claim 1 is characterized in that: The first concrete tower piece (2) and the second concrete tower piece (3) are respectively provided with flanges (5) at the top and bottom, and the upper and lower flanges (5) of the spliced ​​concrete tower (1) are connected by bolts to obtain a tower frame.

3. The novel fully assembled wind power tower structure according to claim 2 is characterized in that: First stiffening ribs (6) are respectively provided between the flange (5) and the first concrete tower plate (2) and the second concrete tower plate (3).

4. The novel fully assembled wind power tower structure according to claim 1 is characterized in that: Second stiffening ribs (7) are respectively provided between the splicing plate (4) and the first concrete tower plate (2) and the second concrete tower plate (3).

5. The novel fully assembled wind power tower structure according to claim 1 is characterized in that: The concrete tower (1) is a variable-section column.

6. A construction method for a novel fully assembled wind turbine tower structure according to any one of claims 1 to 5, comprising prefabricating a first concrete tower segment (2) and a second concrete tower segment (3) with reinforced concrete, vertically connecting a splicing plate (4) to the first concrete tower segment (2) and the second concrete tower segment (3), connecting flanges (5) on the upper and lower surfaces, transporting the first concrete tower segment (2) and the second concrete tower segment (3) to a site for assembly to obtain a concrete tower (1), and assembling the concrete towers (1) in sequence from bottom to top according to the size of a variable cross-section column to obtain a wind turbine tower.

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