Corrugated steel plate splicing type tower drum structure

Abstract

The utility model provides a corrugated steel plate splicing type tower drum structure which comprises a plurality of tower drum connecting sections which are sequentially connected from bottom to top, each tower drum connecting section comprises an inner ring drum body and an outer ring drum body, the inner ring drum body is formed by splicing a left first half-drum-shaped corrugated steel plate and a right first half-drum-shaped corrugated steel plate, and the outer ring drum body is formed by splicing a right first half-drum-shaped corrugated steel plate and a left second half-drum-shaped corrugated steel plate. The outer ring cylinder is formed by splicing a left second half-cylinder-shaped corrugated steel plate and a right second half-cylinder-shaped corrugated steel plate; a pouring cavity is formed between the inner ring cylinder body and the outer ring cylinder body, and concrete is poured in the pouring cavity. According to the corrugated steel plate splicing type tower barrel structure, the requirements for the height, rigidity and strength of a fan tower barrel can be met, and meanwhile the construction cost is considered.

Description

Technical Field

[0001] This utility model relates to the field of wind turbine tower technology, and in particular to a corrugated steel plate spliced ​​tower structure. Background Technology

[0002] In wind power projects, the wind turbine tower is the supporting structure of the wind turbine generator. Existing steel towers are mainly made of rolled steel plates and are used to support the weight of the turbine and convert wind energy into electrical energy. The height of the steel tower needs to be determined based on the size of the wind turbine and the expected wind energy resources, and can reach tens or even hundreds of meters. With the rapid development of wind turbines, steel towers need to have greater height, rigidity, and strength, leading to increasingly larger diameters of traditional steel conical towers, continuously increasing steel wall thickness, and a greater amount of steel used, significantly increasing manufacturing and installation costs.

[0003] Therefore, for megawatt-class wind turbines, the ability to meet the requirements for height, rigidity, and strength while also taking into account project costs has become an urgent problem to be solved in the field of wind power generation technology. Utility Model Content

[0004] The purpose of this utility model is to provide a corrugated steel plate spliced ​​tower structure that can meet the requirements of wind turbine tower height, rigidity and strength while taking into account the project cost.

[0005] This utility model provides a corrugated steel plate spliced ​​tower structure, including multiple tower connecting sections connected sequentially from bottom to top. Each tower connecting section includes an inner ring cylinder and an outer ring cylinder. The inner ring cylinder is spliced ​​from two left and right first semi-cylindrical corrugated steel plates, and the outer ring cylinder is spliced ​​from two left and right second semi-cylindrical corrugated steel plates. A casting chamber is formed between the inner ring cylinder and the outer ring cylinder, and concrete is poured into the casting chamber.

[0006] According to the corrugated steel plate splicing tower structure provided by this utility model, an inwardly extending inner flange plate is provided on both the left and right sides of each first semi-cylindrical corrugated steel plate, and the inner flange plate extends along the axial direction of the inner ring cylinder; when two first semi-cylindrical corrugated steel plates are spliced, each pair of corresponding inner flange plates is connected and fixed by a plurality of first connecting bolts.

[0007] According to the corrugated steel plate splicing tower structure provided by this utility model, outwardly extending outer flange plates are provided on both the left and right sides of each second semi-cylindrical corrugated steel plate, and the outer flange plates are arranged along the axial direction of the outer ring cylinder; when two second semi-cylindrical corrugated steel plates are spliced, each pair of corresponding outer flange plates are connected and fixed by a plurality of second connecting bolts.

[0008] According to the present invention, in a corrugated steel plate splicing tower structure, the flange connection of the inner ring cylinder and the flange connection of the outer ring cylinder are staggered by 90°.

[0009] According to the corrugated steel plate splicing tower structure provided by this utility model, a first connecting flange is provided at the upper and lower ends of the first semi-cylindrical corrugated steel plate, and the first connecting flange is located on the inner side of the first semi-cylindrical corrugated steel plate; when two adjacent tower sections are connected, the two inner ring cylinders are connected through the first connecting flange.

[0010] According to the corrugated steel plate splicing tower structure provided by this utility model, a second connecting flange is provided at the upper and lower ends of the second semi-cylindrical corrugated steel plate, and the second connecting flange is located on the outer side of the second semi-cylindrical corrugated steel plate; when two adjacent tower sections are connected, the two outer ring cylinders are connected by the second connecting flange.

[0011] According to the present invention, a corrugated steel plate splicing tower structure is provided, wherein a plurality of first reinforcing ribs are provided between the first connecting flange and the inner wall of the first semi-cylindrical corrugated steel plate.

[0012] According to the present invention, a corrugated steel plate splicing tower structure is provided, wherein a plurality of second reinforcing ribs are provided between the second connecting flange and the outer wall of the second semi-cylindrical corrugated steel plate.

[0013] According to the corrugated steel plate spliced ​​tower structure provided by this utility model, a transition steel tower is also installed on the uppermost tower connecting section. The transition steel tower is a conical cylindrical structure with a cross-section that gradually decreases from bottom to top. A connecting flange plate is fixed at the lower end of the transition steel tower. The connecting flange plate is provided with multiple inner ring flange holes and multiple outer ring flange holes. The connecting flange plate is connected to the corresponding first connecting flange through the inner ring flange holes, and the connecting flange plate is connected to the corresponding second connecting flange through the outer ring flange holes.

[0014] According to the present invention, a corrugated steel plate spliced ​​tower structure is provided, wherein a wind turbine is installed at the upper end of the transition steel tower.

[0015] The corrugated steel plate splicing tower structure provided by this utility model allows for the manufacture of each first and second semi-cylindrical corrugated steel plate in the factory. The required quantity of these plates is then transported to the construction site, facilitating transportation and effectively reducing costs. At the construction site, the corresponding first semi-cylindrical corrugated steel plates are spliced ​​to form the inner ring, and the corresponding second semi-cylindrical corrugated steel plates are spliced ​​to form the outer ring. The inner and outer rings are coaxially arranged from the inside out, and concrete is poured into the casting chamber between them to form the tower connection section. The tower connection sections are then sequentially spliced ​​and installed using hoisting, making construction convenient and effectively improving efficiency. Because both the inner and outer cylindrical bodies are constructed from two semi-cylindrical corrugated steel plates joined together, and concrete is poured between them, the rigidity and strength of the steel tower are improved without increasing the tower wall thickness. This also meets the load-bearing capacity requirements of the wind turbine unit, effectively reducing the amount of steel used in the tower and lowering costs. Therefore, the corrugated steel plate spliced ​​tower structure of this embodiment can meet the tower structure's requirements for height, rigidity, and strength while also considering project cost, thus reducing overall expenses. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the corrugated steel plate spliced ​​tower structure of this utility model;

[0018] Figure 2 This is a schematic diagram of an end face structure of the tower connecting section in the corrugated steel plate spliced ​​tower structure of this utility model;

[0019] Figure 3 This is a schematic diagram of another end face structure of the tower connecting section in the corrugated steel plate spliced ​​tower structure of this utility model;

[0020] Figure 4 This is a schematic diagram of another end face structure of the tower connecting section in the corrugated steel plate spliced ​​tower structure of this utility model;

[0021] Figure 5 for Figure 4 Sectional view along axis AA;

[0022] Figure 6This is a schematic diagram of the connecting flange plate for the transition steel tower in the corrugated steel plate spliced ​​tower structure of this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 100. Tower connecting section; 200. Transition steel tower; 300. Wind turbine unit;

[0025] 1. Inner ring cylinder; 11. First semi-cylindrical corrugated steel plate; 12. Inner flange plate; 13. First connecting bolt; 14. First connecting flange; 15. First reinforcing rib plate;

[0026] 2. Outer ring cylinder; 21. Second semi-cylindrical corrugated steel plate; 22. Outer flange plate; 23. Second connecting bolt; 24. Second connecting flange; 25. Second reinforcing rib plate;

[0027] 201. Connecting flange plate; 202. Inner ring flange hole; 203. Outer ring flange hole. Detailed Implementation

[0028] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0029] In the description of this utility model, 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", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0030] 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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] like Figures 1 to 6 As shown, the corrugated steel plate spliced ​​tower structure of this utility model includes multiple tower connecting sections 100 connected sequentially from bottom to top. Each tower connecting section 100 includes an inner ring cylinder 1 and an outer ring cylinder 2. The inner ring cylinder 1 is spliced ​​from two left and right first semi-cylindrical corrugated steel plates 11, and the outer ring cylinder 2 is spliced ​​from two left and right second semi-cylindrical corrugated steel plates 21. A casting chamber is formed between the inner ring cylinder 1 and the outer ring cylinder 2, and concrete 3 is poured into the casting chamber.

[0032] The individual first-half-cylindrical corrugated steel plates 11 and second-half-cylindrical corrugated steel plates 21 can be manufactured in the factory. The required quantities of these plates can then be transported to the construction site, facilitating transportation and effectively reducing costs. At the construction site, the corresponding first-half-cylindrical corrugated steel plates 11 are assembled to form the inner cylinder 1, and the corresponding second-half-cylindrical corrugated steel plates 21 are assembled to form the outer cylinder 2. The inner cylinder 1 and outer cylinder 2 are coaxially arranged from the inside out. Concrete 3 is poured into the casting chamber between the inner cylinder 1 and outer cylinder 2 to form the tower connection section 100. The tower connection sections 100 are then sequentially spliced ​​and installed using hoisting, simplifying construction and significantly improving efficiency.

[0033] Since both the inner ring cylinder 1 and the outer ring cylinder 2 are spliced ​​together from two semi-cylindrical corrugated steel plates, and concrete 3 is poured between the inner ring cylinder 1 and the outer ring cylinder 2, the rigidity and strength of the steel tower can be improved without increasing the thickness of the tower wall, and the load-bearing capacity of the wind turbine unit can be met. This effectively reduces the amount of steel used in the steel tower and lowers the cost.

[0034] Therefore, the corrugated steel plate spliced ​​tower structure of this utility model can meet the requirements of tower structure for height, rigidity and strength while taking into account the project cost, thus reducing the cost.

[0035] Specifically, an inner flange plate 12 extending inward is provided on both the left and right sides of each first semi-cylindrical corrugated steel plate 11. The inner flange plate 12 extends along the axial direction of the inner ring cylinder 1. That is, an inner flange plate 12 is provided on the left and right sides of the first semi-cylindrical corrugated steel plate 11 in the vertical direction.

[0036] When the two first semi-cylindrical corrugated steel plates 11 are spliced ​​together, the two corresponding inner flange plates 12 are connected and fixed by multiple first connecting bolts 13, thereby realizing the reliable splicing and installation of the inner ring cylinder 1.

[0037] Specifically, an outwardly extending outer flange plate 22 is provided on both the left and right sides of each second semi-cylindrical corrugated steel plate 21. The outer flange plate 22 extends along the axial direction of the outer ring cylinder 2. That is, an outer flange plate 22 is provided on the left and right sides of the second semi-cylindrical corrugated steel plate 21 in the vertical direction.

[0038] When the two second semi-cylindrical corrugated steel plates 21 are spliced ​​together, the two corresponding outer flange plates 22 are connected and fixed by multiple second connecting bolts 23, thereby realizing the reliable splicing and installation of the outer ring cylinder 2.

[0039] Specifically, during installation, the flange connection of the inner ring cylinder 1 is staggered by 90° with the flange connection of the outer ring cylinder 2 to ensure the structural reliability of the tower connection section 100.

[0040] Specifically, first connecting flanges 14 are provided at both the upper and lower ends of the first semi-cylindrical corrugated steel plate 11, with the first connecting flanges 14 facing the inner side of the first semi-cylindrical corrugated steel plate 11. When two adjacent tower connecting sections 100 are connected, the two inner ring cylinders 1 are mated together through the first connecting flanges 14, and the two first connecting flanges 14 are connected by multiple bolts, thereby achieving a reliable connection and fixation between the inner ring cylinders 1 in the upper and lower tower connecting sections 100.

[0041] Specifically, second connecting flanges 24 are provided at both the upper and lower ends of the second semi-cylindrical corrugated steel plate 21, with the second connecting flanges 24 facing outwards from the second semi-cylindrical corrugated steel plate 21. When two adjacent tower connecting sections 100 are connected, the two outer ring cylinders 2 are butted together through the second connecting flanges 24, and the two second connecting flanges 24 are connected by multiple bolts, thereby achieving a reliable connection and fixation between the outer ring cylinders 2 in the upper and lower tower connecting sections 100.

[0042] Furthermore, a plurality of first reinforcing ribs 15 are welded between the first connecting flange 14 and the inner wall of the first semi-cylindrical corrugated steel plate 11. The plurality of first reinforcing ribs 15 are arranged in a ring-shaped interval, thereby improving the structural strength of the first connecting flange 14 on the first semi-cylindrical corrugated steel plate 11.

[0043] Multiple second reinforcing ribs 25 are welded between the second connecting flange 24 and the outer wall of the second semi-cylindrical corrugated steel plate 21. The multiple second reinforcing ribs 25 are arranged in a ring-shaped interval, thereby improving the structural strength of the second connecting flange 24 on the second semi-cylindrical corrugated steel plate 21.

[0044] Specifically, based on actual usage requirements, the inner ring cylinder 1 and the outer ring cylinder 2 are made of semi-cylindrical corrugated steel plates, and the corrugation shape on the corrugated steel plates can be set according to actual usage requirements. For example, the corrugations on the corrugated steel plates can be arc-shaped waves or sawtooth-shaped waves, and the corrugations on the corrugated steel plates can be set along the circumferential direction or along the vertical direction.

[0045] Furthermore, a transition steel tower 200 is installed on the uppermost tower connecting section 100, and a wind turbine 300 is installed on the upper end of the transition steel tower 200. The transition steel tower 200 is a tapered cylindrical structure with a cross-section that gradually decreases from bottom to top. A connecting flange plate 201 is fixed at the lower end of the transition steel tower 200. The connecting flange plate 201 has multiple inner flange holes 202 and multiple outer flange holes 203. The connecting flange plate 201 is connected to the first connecting flange 14 of the corresponding tower connecting section 100 through the inner flange holes 202, and to the second connecting flange 24 of the corresponding tower connecting section 100 through the outer flange holes 203. This achieves a reliable connection and fixation between the transition steel tower 200 and the uppermost tower connecting section 100. By setting up the transition steel tower 200, reliable installation of the wind turbine 300 can be achieved.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A corrugated steel plate spliced ​​tower structure, characterized in that, The system includes multiple tower connection sections connected sequentially from bottom to top. Each tower connection section includes an inner ring cylinder and an outer ring cylinder. The inner ring cylinder is spliced ​​together from two first semi-cylindrical corrugated steel plates on the left and right, and the outer ring cylinder is spliced ​​together from two second semi-cylindrical corrugated steel plates on the left and right. A casting chamber is formed between the inner ring cylinder and the outer ring cylinder, and concrete is poured into the casting chamber.

2. The corrugated steel plate spliced ​​tower structure according to claim 1, characterized in that, An inwardly extending inner flange is provided on both the left and right sides of each of the first semi-cylindrical corrugated steel plates. The inner flange extends along the axial direction of the inner ring cylinder. When two first semi-cylindrical corrugated steel plates are spliced ​​together, each pair of corresponding inner flanges is connected and fixed by a plurality of first connecting bolts.

3. The corrugated steel plate spliced ​​tower structure according to claim 2, characterized in that, Outer flanges extending outward are provided on both the left and right sides of each of the second semi-cylindrical corrugated steel plates. The outer flanges extend along the axial direction of the outer ring cylinder. When two second semi-cylindrical corrugated steel plates are spliced ​​together, each pair of corresponding outer flanges are connected and fixed by a plurality of second connecting bolts.

4. The corrugated steel plate spliced ​​tower structure according to claim 3, characterized in that, The flange connection of the inner ring cylinder is staggered by 90° with the flange connection of the outer ring cylinder.

5. The corrugated steel plate spliced ​​tower structure according to claim 3, characterized in that, First connecting flanges are provided at the upper and lower ends of the first semi-cylindrical corrugated steel plate, and the first connecting flanges are located on the inner side of the first semi-cylindrical corrugated steel plate; when two adjacent tower sections are connected, the two inner ring cylinders are connected through the first connecting flanges.

6. The corrugated steel plate spliced ​​tower structure according to claim 5, characterized in that, A second connecting flange is provided at both the upper and lower ends of the second semi-cylindrical corrugated steel plate. The second connecting flange is located on the outside of the second semi-cylindrical corrugated steel plate. When two adjacent tower sections are connected, the two outer ring cylinders are connected by the second connecting flange.

7. The corrugated steel plate spliced ​​tower structure according to claim 5, characterized in that, Multiple first reinforcing ribs are provided between the first connecting flange and the inner wall of the first semi-cylindrical corrugated steel plate.

8. The corrugated steel plate spliced ​​tower structure according to claim 6, characterized in that, Multiple second reinforcing ribs are provided between the second connecting flange and the outer wall of the second semi-cylindrical corrugated steel plate.

9. The corrugated steel plate spliced ​​tower structure according to claim 6, characterized in that, A transition steel tower is also installed on the uppermost tower connecting section. The transition steel tower is a tapered cylindrical structure with a cross-section that gradually decreases from bottom to top. A connecting flange plate is fixed at the lower end of the transition steel tower. The connecting flange plate has multiple inner ring flange holes and multiple outer ring flange holes. The connecting flange plate is connected to the corresponding first connecting flange through the inner ring flange holes, and the connecting flange plate is connected to the corresponding second connecting flange through the outer ring flange holes.

10. The corrugated steel plate spliced ​​tower structure according to claim 9, characterized in that, A wind turbine is installed at the upper end of the transition steel tower.

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