Transition section structure of wind power truss tower section and steel tower section

Abstract

The utility model relates to a wind power truss tower section and steel tower section transition section structure which comprises a middle box body, a plurality of supporting legs and an upper support, a round hole vertically penetrating through the middle box body is formed in the middle of the middle box body, protruding connecting parts integrally formed with the middle box body are arranged on the periphery of the middle box body in a protruding mode, and the supporting legs are fixed to the lower ends of the protruding connecting parts in a one-to-one correspondence mode. The upper support is fixed to the upper end of the middle box body, the middle of the upper support is provided with a channel in a penetrating mode, the channel and the round hole are distributed coaxially, an annular cavity is formed in the side wall of the upper support, and a second flange is coaxially fixed to the upper end of the upper support. A through hole penetrating through the bottom wall of the upper support and the top wall of the middle box body is formed in the joint of the bottom wall of the upper support and the top wall of the middle box body. The device has the advantages of being reasonable in design, safe, reliable, small in installation workload and capable of providing higher reliability for a truss tower structure system and providing a more friendly and brand-new structural form for hoisting.

Description

TECHNICAL FIELD

[0001] The utility model relates to wind power generation tower equipment field, especially wind power truss tower section and steel tower section transition section structure. BACKGROUND

[0002] With the development of wind power generation, the hub height of wind turbine generators is higher and higher, and the wind power tower of 140m-185m has successively entered engineering application, and the main structure form of high tower at present can be selected is mixed tower and truss tower. In combination with the actual engineering application of the truss tower at present, the truss tower section does not exceed the blade part, which limits the application of the truss tower in the engineering field. In order to be better applicable to the development of high tower, the truss tower scheme with variable slope can better solve the present problem.

[0003] At present, in the existing truss tower structure, a transition section is usually arranged between the truss tower section and the upper steel tower section, and the structure of the transition section in the past project is complex, large in size and heavy, and the hoisting difficulty and risk of the structure are large.

[0004] Therefore, it is necessary to develop a wind power truss tower section and steel tower section transition section structure to overcome the above technical problems. CONTENT OF THE UTILITY MODEL

[0005] The utility model solves the technical problem that a wind power truss tower section and steel tower section transition section structure is provided, and the defects of the prior art are effectively overcome.

[0006] The technical scheme for solving the above technical problem of the utility model is as follows:

[0007] A wind power truss tower section and steel tower section transition section structure, including intermediate box, a plurality of legs and upper support, the intermediate box middle part is equipped with the round hole that vertically penetrates it, the intermediate box four quarters are protrudingly equipped with the protruding connecting part that is integrally formed with it, a plurality of legs are respectively fixed to the lower end of the protruding connecting part one by one, the protruding connecting part middle part is vertically equipped with the steel strand reservation hole, the leg lower end is equipped with the first flange, the upper support is fixed to the intermediate box upper end, the upper support middle part is equipped with the passageway that is coaxially distributed with the round hole, the upper support side wall is equipped with the ring cavity, the upper support upper end is coaxially fixed with the second flange, the upper support upper end is equipped with the concrete pouring opening that is connected with its ring cavity, and the upper support bottom wall and the intermediate box top wall connection are equipped with the through hole that penetrates both.

[0008] On the basis of the above technical scheme, the utility model can also be improved as follows.

[0009] Further, the intermediate box, the plurality of legs and the upper support are all steel members, the legs are welded and fixed at the lower end of the protruding connecting part, and the upper support is welded and fixed at the upper end of the intermediate box.

[0010] Further, the upper support is conical.

[0011] Further, the legs are cylindrical members with open lower ends, a steel strand sleeve is coaxially arranged in the middle of the leg, and the steel strand sleeve is connected and fixed with the inner wall of the leg through a plurality of first stiffening plates distributed along the circumference.

[0012] Further, the upper part of the side wall of the leg is connected and fixed with the bottom wall of the protruding connecting part through a plurality of second stiffening plates.

[0013] Further, a plurality of pouring ports are arranged and distributed at equal intervals along the circumference, and a plurality of through holes are arranged and distributed at equal intervals along the circumference.

[0014] Further, the protruding connecting part is provided with four.

[0015] Further, a plurality of third stiffening plates are arranged and distributed at equal intervals along the circumference between the side walls of the annular cavity of the upper support, and the lower part of the third stiffening plate is provided with a transverse through hole.

[0016] Further, a fourth stiffening plate is arranged and connected between the upper end of the protruding connecting part and the side wall of the upper support.

[0017] Further, a plurality of groups of studs are arranged and distributed at equal intervals along the circumference on the inner wall of the annular cavity, and each group of studs is provided with a plurality of studs distributed at equal intervals along the vertical direction.

[0018] The beneficial effects of the present application are: reasonable structure design, safe and reliable structure, small installation workload, higher reliability for the truss tower structure system, and a new structure form for hoisting. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structure schematic view of the actual construction and assembly of the wind power truss tower section and the steel tower section transition section structure of the present application;

[0020] Figure 2 It is a structure schematic view of the wind power truss tower section and the steel tower section transition section structure of the present application;

[0021] Figure 3 It is a structure schematic view of the wind power truss tower section and the steel tower section transition section structure of the present application;

[0022] Figure 4 It is a sectional view of the wind power truss tower section and the steel tower section transition section structure of the present application.

[0023] The attached diagram lists the components represented by each number as follows:

[0024] 1. Intermediate box body; 2. Support legs; 3. Upper support; 5. Stud; 11. Protruding connection part; 12. Steel strand reserved hole; 21. First flange; 22. Second stiffening plate; 23. Steel strand sleeve; 31. Second flange; 32. Concrete pouring port; 33. Third stiffening plate; 111. Fourth stiffening plate; 231. First stiffening plate; 331. Concrete grouting port. Detailed Implementation

[0025] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0026] Example

[0027] like Figure 1 , 2 As shown in Figures 3 and 4, the transition section structure between the wind turbine truss tower section and the steel tower section in this embodiment includes an intermediate box 1, multiple legs 2, and an upper support 3. The intermediate box 1 has a vertically penetrating circular hole in its center. The intermediate box 1 has protruding connecting parts 11 integrally formed around it. The multiple legs 2 are fixed to the lower ends of the protruding connecting parts 11 one by one. The protruding connecting parts 11 have a steel strand pre-reserved hole 12 vertically penetrating through its center. The lower end of the legs 2 has a first flange 21. The upper support 3 is fixed to the upper end of the intermediate box 1. The upper support 3 has a channel coaxially distributed with the circular hole in its center. The upper support 3 has an annular cavity in its side wall. The upper end of the upper support 3 has a second flange 31 coaxially fixed. The upper end of the upper support 3 has a concrete pouring port 32 communicating with its annular cavity. The bottom wall of the upper support 3 and the top wall of the intermediate box 1 have a through hole connecting the two.

[0028] The transition section structure between the wind turbine truss tower section and the steel tower section in this embodiment mainly consists of three parts: first, the bottom support legs 2; second, the intermediate box body 1, mainly composed of prestressed steel strand connection structures; and third, the upper support 3. These three parts are interconnected and fixed according to their positions. Concrete is poured into the upper support 3 through the concrete pouring port 32, and through internal through-holes, the intermediate box body 1 and the upper support 3 are integrally cast. The structure is assembled with the upper ends of multiple corner columns of the lower truss tower section A via the first flange 21, and with the upper steel tower section B via the second flange 31. Figure 1 In this embodiment, "C" refers to the transition section between the wind turbine truss tower section and the steel tower section. The overall structure is relatively small, the combined structure is reasonably stressed, safe and reliable, and the overall weight is reduced, which facilitates the hoisting and construction of the structure.

[0029] It should be noted that: after the construction assembly is completed, the surface of the whole structure is sandblasted and rusted, and the surface corrosion treatment is carried out according to the corrosion prevention requirements of the wind power steel tower. And after the construction of the prestressed steel strand anchor head is completed, the exposed anchor head should be sealed with a customized sealing cover.

[0030] It should be noted that: after the construction assembly is completed, the surface of the whole structure is sandblasted and rusted, and the surface corrosion treatment is carried out according to the corrosion prevention requirements of the wind power steel tower. And after the construction of the prestressed steel strand anchor head is completed, the exposed anchor head should be sealed with a customized sealing cover.

[0031] In this embodiment, the intermediate box body 1, the plurality of legs 2 and the upper support 3 are all steel members, the legs 2 are welded and fixed to the lower end of the protruding connecting part 11, and the upper support 3 is welded and fixed to the upper end of the intermediate box body 1.

[0032] In this embodiment, the upper support 3 is conical. The volume is relatively small, and the weight is reduced.

[0033] In this embodiment, the leg 2 is a cylindrical member with an open lower end, a steel strand sleeve 23 is coaxially arranged in the inner middle part of the leg 2, and the steel strand sleeve 23 is connected and fixed to the inner wall of the leg 2 through a plurality of first stiffening plates 231 distributed along the circumference. The design of the steel strand sleeve 23 facilitates the guiding of the steel strand, and the first stiffening plates 231 can achieve good structural connection between the steel strand sleeve 23 and the inner wall of the leg 2.

[0034] In this embodiment, the upper part of the side wall of the leg 2 is connected and fixed to the bottom wall of the protruding connecting part 11 through a plurality of second stiffening plates 22. This design strengthens the structural strength between the leg 2 and the protruding connecting part 11 (i.e. between the leg 2 and the intermediate box body 1). Generally, the second stiffening plates 22 are arranged on the inner side of the plurality of legs 2, which are hidden and do not increase the size.

[0035] In this embodiment, a plurality of concrete pouring openings 32 are arranged and distributed at equal intervals along the circumference, and a plurality of through holes are arranged and distributed at equal intervals along the circumference. This facilitates simultaneous pouring and filling through a plurality of concrete pouring openings 32, and improves construction efficiency.

[0036] In this embodiment, the protruding connecting part 11 has four. The outer contour of the cross section of the protruding connecting part 11 is designed as a circular arc.

[0037] As a preferred embodiment, a plurality of third stiffening plates 33 are distributed at equal intervals along the circumference between the side walls of the annular cavity of the upper support 3, and the third stiffening plates 33 are provided with a plurality of through holes 331.

[0038] In the above embodiment, the upper support 3 is a double-layered sidewall conical cylinder member, and the third stiffening plate 33 is connected between the inner wall and the outer wall, which can greatly improve the structural strength between the inner wall and the outer wall (even the whole upper support 3), and the concrete slurry port 331 at the lower part of the third stiffening plate 33 is designed to uniformly disperse to any part inside the upper support 3 after the concrete slurry enters the ring cavity of the upper support 3.

[0039] In the embodiment, the fourth stiffening plate 111 is connected between the upper end of the protruding connecting part 11 and the sidewall of the upper support 3. Since the protruding connecting part 11 is arranged in multiple directions at the outer edge, the structural strength of the protruding connecting part 11 and the upper support 3 can be improved by the design of the fourth stiffening plate 111.

[0040] More specifically, the fourth stiffening plate 111 is formed by extending the third stiffening plate 33 in the upper support 3 corresponding to the protruding connecting part 11, that is, several third stiffening plates 33 in the upper support 3 extend out of the outer wall of the upper support 3, and the extended part forms the fourth stiffening plate 111.

[0041] In the embodiment, a plurality of groups of the stud 5 are arranged at the inner wall of the ring cavity in a circumferential direction at equal intervals, and each group of the stud 5 is arranged in a vertical direction at equal intervals. The combination degree of the concrete poured in the upper support 3 can be improved by the design of the stud 5. The stud can also be arranged on the inner wall of the middle box body 1.

[0042] In the description of the utility model, it should be understood that the directions or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" are based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, structure and operation, and therefore cannot be understood as limiting the utility model.

[0043] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0044] In the utility model, unless another definite provision and limitation, the terms "mount", "link", "connect", "fix" and so on should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated;Can be mechanical connection, also can be electrical connection;Can be direct connection, also can indirectly connect through intermediate medium, can be the communication of two element internals or the interaction of two elements, unless another definite limitation.For ordinary skilled in the art, can understand the specific meaning of the above terms in the utility model according to specific circumstances.

[0045] In the utility model, unless another definite provision and limitation, the first feature is "on" or "under" the second feature can be the direct contact of the first and second features, or the indirect contact of the first and second features through intermediate medium.Moreover, the first feature "over", "above" and "on" the second feature can be the direct contact of the first and second features, or the indirect contact of the first and second features through intermediate medium.Moreover, the first feature "over", "above" and "on" the second feature can be the direct contact of the first and second features, or the indirect contact of the first and second features through intermediate medium.

[0046] In the description of the specification, the description of the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model.In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example.Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.In addition, the skilled in the art can combine and combine the different embodiments or examples described in the specification and the features of different embodiments or examples without contradiction.

[0047] Although the embodiments of the utility model have been shown and described above, it can be understood that the above-mentioned embodiments are exemplary, and cannot be understood as the limitation of the utility model, and the ordinary skilled in the art can change, modify, replace and modify the above-mentioned embodiments within the scope of the utility model.

Claims

1. A wind turbine truss tower segment to steel tower segment transition segment structure, characterized by: The utility model relates to a kind of steel support, including intermediate box (1), multiple supporting legs (2) and upper support (3), the intermediate box (1) middle part is provided with vertical through it round hole, the intermediate box (1) four around protruding is provided with with integral forming protruding connecting part (11), multiple the supporting legs (2) are respectively one-to-one corresponding fixed in the lower end of protruding connecting part (11), protruding connecting part (11) middle part is vertically provided with steel strand reserved hole (12), the lower end of supporting leg (2) is equipped with first flange (21), upper support (3) is fixed in the upper end of intermediate box (1), upper support (3) middle part is provided with with the passage coaxially distributed with the round hole, the lateral wall of upper support (3) is equipped with ring cavity, the upper end of upper support (3) is coaxially fixed with second flange (31), upper support (3) upper end is equipped with with the ring cavity of its pouring mouth (32) of concrete, the bottom wall of upper support (3) and the top wall connecting place of intermediate box (1) is equipped with through hole passing through both.

2. A wind power truss tower segment and steel tower segment transition segment structure according to claim 1, characterized in that: The intermediate box (1), multiple supporting legs (2) and upper support (3) are all steel components, the supporting leg (2) is welded and fixed in the lower end of protruding connecting part (11), and the upper support (3) is welded and fixed in the upper end of intermediate box (1).

3. The wind power truss tower segment and steel tower segment transition segment structure according to claim 1, characterized in that: The upper support (3) is conical.

4. The wind power truss tower segment and steel tower segment transition segment structure of claim 1, wherein: The supporting leg (2) is a cylindrical component with an open lower end, a steel strand sleeve (23) is coaxially arranged in the inner middle part of the supporting leg (2), and the steel strand sleeve (23) is connected and fixed to the inner wall of the supporting leg (2) by a plurality of first stiffening plates (231) distributed along the circumference.

5. The wind power truss tower segment and steel tower segment transition segment structure of claim 1, wherein: The side wall of the supporting leg (2) is connected and fixed to the bottom wall of the protruding connecting part (11) by a plurality of second stiffening plates (22) at the upper part.

6. A wind power truss tower segment and steel tower segment transition segment structure according to claim 1, characterized in that: The pouring mouth (32) of concrete is provided with a plurality of pouring mouths of concrete, and the through hole is provided with a plurality of through holes.

7. A wind power truss tower segment and steel tower segment transition segment structure according to claim 1, characterized in that: The protruding connecting part (11) is provided with four protruding connecting parts.

8. A wind power truss tower segment and steel tower segment transition segment structure according to claim 1, characterized in that: A plurality of third stiffening plates (33) are distributed along the circumference at equal intervals between the side walls of the ring cavity of the upper support (3), and the lower part of the third stiffening plate (33) is provided with a transversely penetrating through hole (331) of concrete slurry.

9. The wind power truss tower segment and steel tower segment transition segment structure of claim 1, wherein: The upper end of the protruding connecting part (11) is connected to the side wall of the upper support (3) by a fourth stiffening plate (111).

10. A wind turbine truss tower segment and steel tower segment transition segment structure according to any of claims 1 to 9, characterized in that: A plurality of groups of pegs (5) are distributed along the circumference at equal intervals on the inner wall of the ring cavity, and each group of pegs (5) is provided with a plurality of pegs distributed along the vertical direction at equal intervals.

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