Assembled tower drum structure and wind generating set

Abstract

The utility model provides an assembly type tower drum structure and a wind generating set, the assembly type tower drum structure comprises a plurality of tower drum assemblies which can be assembled, each tower drum assembly comprises two tower drum main bodies, and each tower drum main body comprises a plurality of vertical profile steels which are annularly arrayed; the tower drum body further comprises an annular steel plate connected to the open ends of the multiple pieces of vertical profile steel. The tower drum main body further comprises a connecting plate connected to the connecting end of each piece of vertical profile steel; each tower drum assembly further comprises a connecting piece, and the connecting ends of the multiple pieces of vertical profile steel of the two tower drum bodies are connected with the two ends of the connecting piece through corresponding connecting plates. According to the embodiment, the tower drum assemblies are spliced, and convenience is provided for the transportation and construction process. The strength of the tower drum main body formed by splicing the vertical section steel can be enhanced. And the connecting plate is convenient to connect with a connecting piece, and the connecting strength can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of wind turbine towers, in particular to an assembled tower structure and a wind turbine generator set. Background Art

[0002] In wind power projects, the wind turbine tower is the supporting structure of the wind turbine generator set. The steel tower is made of rolled steel plates. Its main function is to support the weight of the unit and convert wind energy into electrical energy.

[0003] The height of a steel tower depends on the size of the wind turbine and the expected wind energy resources, and can reach tens or even hundreds of meters. Therefore, the steel tower needs to have greater rigidity and strength to meet design requirements.

[0004] In order to meet the above requirements, the diameter of the steel vertebral tube tower frame of the relevant tower tube is getting larger and larger, the steel wall thickness is increasing, and the amount of steel used is increasing, which greatly increases the production and installation costs.

[0005] Therefore, a new type of tower structure is needed to solve the above problems. Utility Model Content

[0006] The content of this disclosure is intended to briefly introduce concepts that will be described in detail in the detailed description of the embodiments below. The content of this disclosure is not intended to identify key features or essential features of the claimed technical solution, nor is it intended to limit the scope of the claimed technical solution.

[0007] The utility model provides an assembled tower structure and a wind turbine generator set to solve the technical problems mentioned in the above background technology part.

[0008] In a first aspect, the present invention provides an assembled tower structure, comprising a plurality of assembled tower components, wherein:

[0009] Each tower assembly includes two assembleable tower bodies, and each tower body includes a plurality of annular arrays of vertical steel sections;

[0010] The tower body further includes an annular steel plate connected to the open ends of a plurality of vertical steel sections, wherein the annular steel plate is used to connect with adjacent tower components;

[0011] The tower body further includes a connecting plate connected to the connecting end of each vertical steel section;

[0012] Each of the tower components further includes a connecting piece, and the connecting ends of the multiple vertical steel sections of the two tower bodies are connected to the two ends of the connecting piece through corresponding connecting plates.

[0013] Optionally, the tower structure formed by assembling each tower assembly is conical.

[0014] Optionally, the vertical steel section is an I-beam.

[0015] Optionally, the cross-section of the vertical steel section gradually decreases from bottom to top.

[0016] Optionally, the length of the connecting plate is set to be greater than the cross-sectional height of the vertical steel section, and in the assembled state, both ends of the connecting plate protrude from both ends of the vertical steel section.

[0017] Optionally, both ends of the connecting plate protruding from the vertical steel section are provided with bolt holes for connecting to the connecting pieces.

[0018] Optionally, the connecting piece is formed by bending an I-beam and welding the ends together.

[0019] Optionally, bolt holes corresponding to the connecting plates are provided on the wing plates at the upper and lower ends of the connecting member.

[0020] Optionally, the vertical steel section is welded to the middle of the annular steel plate, and bolt holes are provided on the inner and outer sides of the annular steel plate relative to the tower body.

[0021] In a second aspect, the present invention further provides a wind turbine generator set, comprising a connected wind turbine, an assembled tower structure and a foundation, wherein the assembled tower structure is the assembled tower structure described in any embodiment of the first aspect.

[0022] The above-mentioned embodiments of the present invention have the following beneficial effects: the assembled tower structure of some embodiments of the present invention is assembled by multiple tower components, which provides convenience for the transportation of materials and the construction process.

[0023] The tower body is formed by using multiple evenly arranged vertical steel sections, instead of using steel plates to form a steel tower, which can enhance the strength of the tower body.

[0024] By arranging connecting plates at both ends of the vertical steel sections, connection with the connecting pieces is facilitated, and the connection strength between the two tower bodies or adjacent tower components can be improved.

[0025] The tower structure is low-cost, can provide sufficient bearing capacity, and is relatively convenient and fast in terms of manufacturing technology, material transportation and construction process. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0027] Figure 1 This is a structural schematic diagram of an embodiment of a tower assembly of the present utility model;

[0028] Figure 2 This is a top view of an embodiment of the present invention after the connecting plate is connected to the vertical steel section;

[0029] Figure 3 This is a top view of another embodiment of the present invention after the connecting plate is connected to the vertical steel section;

[0030] Figure 4 This is a top view of an embodiment of the utility model after the annular steel plate is connected to the vertical steel section;

[0031] Figure 5 This is a top view of another embodiment of the utility model after the annular steel plate is connected to the vertical steel;

[0032] Figure 6 This is a structural schematic diagram of an embodiment of a connecting piece of the present utility model;

[0033] Figure 7 This is a structural diagram of an embodiment of a wind turbine generator set of the present invention.

[0034] Description of reference numerals:

[0035] 11. Vertical steel; 12. Concrete; 2. Connecting plate; 3. Connecting parts; 4. Annular steel plate; 5. Foundation; 6. Wind turbine tower; 7. Nacelle; 8. Hub; 9. Blades. DETAILED DESCRIPTION

[0036] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the embodiments. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0037] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0038] In addition, the terms "first" and "second" are used for descriptive purposes only 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" may explicitly or implicitly include one or more of the said features. In the description of the present utility model, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a communication between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0039] The present disclosure will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0040] First see Figure 1 and Figure 2 , Figure 1 This is a structural schematic diagram of an embodiment of a tower assembly of the present utility model; Figure 2 This is a top view of an embodiment of the present invention after the connecting plate is connected to the vertical steel. Figure 1 and Figure 2 As shown, the assembled tower structure is assembled from a plurality of tower assemblies. Each tower assembly includes two tower bodies, and the tower bodies are surrounded by a plurality of vertical steel sections 11 in a circular array. As an example, the vertical steel sections 11 can be I-beams. Those skilled in the art can determine the specifications and the number of the above-mentioned vertical steel sections 11 according to the strength requirements of the tower structure. In addition, two adjacent vertical steel sections 11 can be spaced apart or connected by welding. Those skilled in the art can make adjustments based on actual conditions, which are not limited here.

[0041] The assembled tower structure can be conical, so the two tower bodies in each tower assembly have a cross-section that gradually decreases from bottom to top. The vertical steel sections 11 in each tower body can also be arranged to have a cross-section that gradually decreases from bottom to top.

[0042] See next Figure 3 And continue to read Figure 1 and Figure 2 , Figure 3 This is a top view of another embodiment of the present invention after the connecting plate is connected to the vertical steel. Figures 1 to 3 As shown, a connecting plate 2 is welded to one end of each vertical steel section 11 .

[0043] Next, the tower body above is used as an example for explanation. The lower end of each vertical steel section 11 is welded with a connecting plate 2. Figure 2 As shown, the connecting plate 2 can be configured in a square shape, with the width of the connecting plate 2 matching the width of the vertical steel section 11, and the length of the connecting plate 2 being configured to be greater than the cross-sectional height of the vertical steel section 11. In the assembled state, the ends of the connecting plate 2 protrude beyond the ends of the vertical steel section 11. Bolt holes are provided at the ends of the connecting plate 2 protruding from the vertical steel section 11.

[0044] Further, if Figure 3 As shown, to enhance the strength of the tower body, concrete 12 can be poured between multiple vertical steel sections 11 using an annular mold to form a steel-concrete tower body. In other words, those skilled in the art can determine whether to pour concrete 12 based on actual conditions or design requirements, and this is not limited here.

[0045] See also Figure 4 and Figure 5 And continue to read Figure 1 , Figure 4 This is a top view of an embodiment of the utility model after the annular steel plate is connected to the vertical steel section; Figure 5 This is a top view of another embodiment of the utility model after the annular steel plate is connected to the vertical steel. Figure 1 and Figure 4 As shown, the open end of the vertical steel section 11 is welded to the annular steel plate 4, and the adjacent vertical steel sections 11 are welded to form the annular tower structure tower body. Figure 1 The upper end of the middle upper tower body and the lower end of the lower tower body.

[0046] Still taking the upper tower body as an example, the upper end of the vertical steel section 11 is welded to the middle of the annular steel plate 4, and a plurality of bolt holes are opened on both sides of the annular steel plate 4 protruding from the tower body. Figure 5The diagram shows a situation where concrete 12 is poured between vertical steel sections 11 in the tower body to form a steel-concrete tower body, and is connected to the annular steel plate 4 .

[0047] See next Figure 6 And continue to read Figure 1 , Figure 6 FIG. 1 is a structural diagram of an embodiment of a connector of the present invention. Figure 6 As shown, a connector 3 is also provided between the two tower bodies. This connector 3 can be formed by bending an I-beam and welding it end to end. Bolt holes are provided on both sides of the upper and lower wing plates of the connector 3 relative to the web. The bolt holes in the upper wing plate correspond to the bolt holes in the connecting plate 2 connected to the upper tower body, and are connected by bolts. The bolt holes in the lower wing plate correspond to the bolt holes in the connecting plate 2 connected to the lower tower body, and are connected by bolts. In this way, the two tower bodies are assembled into a tower assembly.

[0048] The bolt holes of the annular steel plates 4 on the upper and lower sides of the tower assembly correspond to the bolt holes of the annular steel plates 4 of the upper and lower adjacent tower assemblies, and can be connected by bolts. In this way, an appropriate number of tower assemblies can be assembled to form a tower structure according to the required height of the wind turbine generator set.

[0049] The utility model also provides a wind turbine generator set, see Figure 7 , Figure 7 The figure is a schematic structural diagram of an embodiment of a wind turbine generator set according to the present invention. The wind turbine generator set includes a wind turbine, an assembled tower structure, and a foundation 5. The assembled tower structure is the assembled tower structure described in the above embodiments. The wind turbine generator may include blades 9, which are connected to a hub 8, which is connected to a generator disposed in a nacelle 7. A wind turbine tower 6 is connected to the bottom of the nacelle 7. The wind turbine tower 6 is connected to the upper end of the assembled tower structure via a flange. The lower end of the assembled tower structure is connected to the foundation 5.

[0050] When assembling this wind turbine generator set, multiple tower assemblies can be fabricated separately. First, vertical steel sections 11 are welded in a circular array to the annular steel plate 4 to form the annular spliced ​​tower body. Adjacent vertical steel sections 11 can be spaced apart or connected by welding. Connecting plate 2 is welded to the other end of the vertical steel sections 11. This connection method avoids processing space limitations and improves welding efficiency.

[0051] Next, if the tower body needs to be strengthened, molds can be set up on both sides of the vertical steel sections 11 and concrete 12 can be poured to form a steel-concrete I-beam tower body. Of course, if the tower body is formed by multiple vertical steel sections 11 to meet the required strength, pouring concrete 12 can be omitted.

[0052] Then, the connecting plates 2 of the two tower bodies are connected to the upper and lower ends of the connecting parts 3 by bolts to assemble them into a tower assembly.

[0053] Using the above method, multiple tower assemblies are transported to the site separately. The annular steel plate 4 at the bottom end of the bottom tower assembly is bolted to the foundation 5. The annular steel plate 4 at the top end of the bottom tower assembly is bolted to the annular steel plate 4 at the bottom end of the adjacent tower assembly. In this way, all tower assemblies are assembled to form the tower structure. Next, the annular steel plate 4 at the top end of the top tower assembly is flange-connected to the wind turbine tower 6. Finally, the nacelle 7, hub 8, and blades 9 are installed on the wind turbine tower 6 to complete the installation.

[0054] The above installation method can improve processing efficiency and also make the transportation and construction process convenient and quick.

[0055] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An assembled tower structure, characterized in that: It includes multiple tower components that can be assembled, among which, Each tower assembly includes two assembleable tower bodies, and each tower body includes a plurality of annular arrays of vertical steel sections; The tower body further comprises an annular steel plate connected to the open ends of a plurality of vertical steel sections, wherein the annular steel plate is used to connect with adjacent tower components; The tower body further includes a connecting plate connected to the connecting end of each vertical steel section; Each of the tower components further includes a connecting piece, and the connecting ends of the multiple vertical steel sections of the two tower bodies are connected to the two ends of the connecting piece through corresponding connecting plates.

2. The assembled tower structure according to claim 1, characterized in that: The tower structure formed by assembling each tower component is conical.

3. The assembled tower structure according to claim 1, characterized in that: The vertical steel section is an I-beam.

4. The assembled tower structure according to claim 3, characterized in that: The cross-section of the vertical steel section gradually decreases from bottom to top.

5. The assembled tower structure according to claim 1, characterized in that: The length of the connecting plate is set to be greater than the cross-sectional height of the vertical steel section. In the assembled state, both ends of the connecting plate protrude from both ends of the vertical steel section.

6. The assembled tower structure according to claim 5, characterized in that: Both ends of the connecting plate protruding from the vertical steel section are provided with bolt holes for connecting with connecting pieces.

7. The assembled tower structure according to claim 6, characterized in that: The connecting piece is formed by bending an I-beam and welding the ends together.

8. The assembled tower structure according to claim 7, characterized in that: The wing plates at the upper and lower ends of the connecting piece are provided with bolt holes corresponding to the connecting plates.

9. The assembled tower structure according to claim 1, characterized in that: The vertical steel section is welded to the middle of the annular steel plate, and bolt holes are provided on the inner and outer sides of the annular steel plate relative to the tower body.

10. A wind turbine generator set, characterized in that: It comprises a connected wind turbine, an assembled tower structure and a foundation, wherein the assembled tower structure is the assembled tower structure as claimed in any one of claims 1 to 9.

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