Splicing type steel tower drum structure

Abstract

The utility model relates to the technical field of wind power towers, in particular to a spliced steel tower structure. The spliced steel tower drum structure comprises a sectional steel tower drum, a tower drum connecting piece and a fan connecting piece, the lower part of the sectional steel tower drum is connected with a fan foundation; a fan connecting piece is connected to the upper part of the sectional steel tower drum; the upper part of the fan connecting piece is connected with a fan steel tower drum; each sectional steel tower drum comprises a plurality of steel channels, square tubes formed by splicing two steel channels form a steel channel group, and a plurality of steel channel groups are spliced into the quadrilateral sectional steel tower drum; the tower drum connecting piece comprises an inner connecting piece and an outer connecting piece, the inner connecting piece is arranged on the inner side of the sectional steel tower drum, the outer connecting piece is arranged on the outer side of the sectional steel tower drum, and the inner connecting piece and the outer connecting piece are respectively connected with the sectional steel tower drum. According to the spliced steel tower tube structure, the rigidity and strength of the whole fan steel tower tube can be improved, the requirement for the bearing capacity of a fan unit is met, channel steel serves as an original material, transportation is convenient, and the transportation cost can be effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of wind power towers, in particular to a spliced ​​steel tower structure. Background Art

[0002] In wind power projects, wind turbine towers are the supporting structures of wind turbines. Steel towers are made of rolled steel plates. Their main function is to support the weight of the unit and convert wind energy into electrical energy. The height of the steel tower depends on the size of the wind turbine and the expected wind energy resources, and can reach tens of meters or even hundreds of meters. With the rapid development of wind turbines, steel towers need to have greater height, rigidity and strength, resulting in the increasing diameter of traditional steel vertebral tube towers, increasing steel consumption, and greatly increasing the cost of material transportation. While meeting the requirements of height, rigidity and strength, it is also necessary to take into account the project cost. For multi-megawatt wind turbines, a new type of steel tower structure has become an issue that needs to be urgently addressed. Utility Model Content

[0003] The utility model aims to provide a spliced ​​steel tower structure, which is formed by splicing channel steel to form segmented steel towers, and the channel steels are fixed by internal and external connectors, which can increase the rigidity and strength of the entire wind turbine steel tower and meet the bearing capacity of the wind turbine unit. In addition, the original materials of the spliced ​​steel tower structure, such as channel steels, are easy to transport, which can effectively reduce transportation costs.

[0004] The utility model provides a spliced ​​steel tower structure, comprising: a segmented steel tower, a tower connecting piece and a fan connecting piece;

[0005] A fan foundation is connected below the segmented steel tower;

[0006] The fan connecting piece is connected to the top of the segmented steel tower;

[0007] A steel tower of the fan is connected above the fan connecting piece;

[0008] A plurality of the segmented steel towers each include a plurality of channel steels, a square tube formed by splicing two of the channel steels forms a channel steel group, and a plurality of the channel steel groups form a quadrilateral segmented steel tower;

[0009] The tower connecting member includes an inner connecting member and an outer connecting member, wherein the inner connecting member is arranged on the inner side of the segmented steel tower, and the outer connecting member is arranged on the outer side of the segmented steel tower, and the inner connecting member and the outer connecting member are respectively connected to the segmented steel tower.

[0010] Preferably, the inner connecting member and the segmented steel tower are connected by bolts.

[0011] Further preferably, the external connecting member and the segmented steel tower are connected by bolts.

[0012] Further preferably, a reserved opening is provided on the channel steel, and the bolt passes through the reserved opening on the channel steel.

[0013] Preferably, a nacelle is connected to the top of the wind turbine steel tower, a hub is connected to one side of the nacelle, and blades are connected to the hub.

[0014] Preferably, the fan connecting piece is in a box shape without a bottom surface, and an opening is reserved on the side of the fan connecting piece and on the top of the fan connecting piece.

[0015] Further preferably, the fan connecting member and the fan steel tower are connected by bolts passing through a reserved opening at the top of the fan connecting member.

[0016] Further preferably, the fan connecting member and the segmented steel tower are connected by bolts passing through a reserved opening on the side of the fan connecting member.

[0017] Preferably, adjacent segmented steel towers are connected by welding.

[0018] Preferably, adjacent channel steels are connected by welding.

[0019] Beneficial effects:

[0020] The technical solution of the utility model forms a segmented steel tower by splicing channel steels, and fixes the channel steels by internal and external connectors, which can increase the rigidity and strength of the entire wind turbine steel tower and meet the bearing capacity of the wind turbine unit. In addition, the original materials of the spliced ​​steel tower structure, such as channel steels, are easy to transport, which can effectively reduce transportation costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] 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 creative work.

[0022] Figure 1 This is a structural elevation view of a spliced ​​steel tower according to the present invention;

[0023] Figure 2 It is the AA cross-sectional view of the spliced ​​steel tower structure of the present invention;

[0024] Figure 3 A three-dimensional diagram of a connecting member in a spliced ​​steel tower structure of the present invention;

[0025] Figure 4It is a top view of the connecting member in the spliced ​​steel tower structure of the present invention;

[0026] Figure 5 It is a side view of the connecting member in the spliced ​​steel tower structure of the present invention.

[0027] Description of reference numerals:

[0028] 1: Wind turbine foundation; 2: Channel steel; 3: Segmented steel tower; 4: Bolts; 5: Wind turbine connectors; 6: Wind turbine steel tower; 7: Nacelle; 8: Hub; 9: Blades; 10: Tower connectors; 1001: Internal connectors; 1002: External connectors. DETAILED DESCRIPTION

[0029] The technical solution of the utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] 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" and the like 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.

[0031] 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 technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the 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 indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0032] Example 1

[0033] like Figures 1 to 5 As shown, the utility model provides a spliced ​​steel tower structure, which includes: a segmented steel tower 3, a tower connecting member 10 and a fan connecting member 5. The fan foundation 1 is connected to the bottom of the segmented steel tower 3, the fan connecting member 5 is connected to the top of the segmented steel tower 3, and the fan steel tower 6 is connected to the top of the fan connecting member 5. Several segmented steel towers 3 each include several channel steels 2, two channel steels 2 are spliced ​​into a square tube to form a channel steel group, and several channel steel groups are spliced ​​into a quadrilateral segmented steel tower 3. The tower connecting member 10 includes an inner connecting member 1001 and an outer connecting member 1002, the inner connecting member 1001 is arranged on the inner side of the segmented steel tower 3, the outer connecting member 1002 is arranged on the outer side of the segmented steel tower 3, and the inner connecting member 1001 and the outer connecting member 1002 are respectively connected to the segmented steel tower 3.

[0034] The technical solution of the utility model forms a segmented steel tower 3 by splicing channel steel 2, and fixes the channel steel 2 by internal connector 1001 and external connector 1002, which can increase the rigidity and strength of the entire wind turbine steel tower 6 and meet the bearing capacity of the wind turbine unit. In addition, the original materials of the spliced ​​steel tower structure, such as channel steel 2, are easy to transport, which can effectively reduce transportation costs.

[0035] The inner connecting member 1001 is connected to the segmented steel tower 3 by bolts 4. The outer connecting member 1002 is connected to the segmented steel tower 3 by bolts 4. A reserved opening is provided on the channel steel 2, and the bolts 4 pass through the reserved opening on the channel steel 2. The tower connecting member 10 and the segmented steel tower 3 are connected by bolts 4, which is convenient for disassembly. No welding is required, which reduces the amount of engineering work.

[0036] The top of the wind turbine steel tower 6 is connected to a nacelle 7, one side of the nacelle 7 is connected to a hub 8, and the hub 8 is connected to blades 9. The wind turbine connector 5 is a box-shaped fan without a bottom surface, and a hole is reserved on the side of the wind turbine connector 5, and a hole is also reserved on the top of the wind turbine connector 5. The wind turbine connector 5 is connected to the wind turbine steel tower 6 through the reserved hole on the top of the wind turbine connector 5 and the bolt 4 is passed through. The wind turbine connector 5 is connected to the segmented steel tower 3 through the reserved hole on the side of the wind turbine connector 5 and the bolt 4 is passed through.

[0037] Example 2

[0038] Adjacent segmented steel tower tubes 3 are connected by welding. Specifically, two adjacent segmented steel tower tubes 3 are connected by welding, which can further enhance the stability of the spliced ​​steel tower tube structure.

[0039] Example 3

[0040] Adjacent channel steels 2 are connected by welding. Specifically, adjacent channel steels 2 in the same segmented steel tower 3 are connected by welding. Figure 2As shown, firstly, two channel steels 2 are spliced ​​into a cross-sectional shape of a square tube, and the square tube formed by the splicing of the two channel steels 2 is realized by welding the flanges of the two channel steels 2. The square tube formed by the splicing of the two channel steels 2 becomes a group of channel steels 2, and the groups of channel steels 2 are also welded, specifically by web or flange welding, and finally welded and spliced ​​into a segmented steel tower 3. The stability of the spliced ​​steel tower structure is further enhanced.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A spliced ​​steel tower structure, characterized in that: include: Segmented steel tower, tower connections and fan connections; A fan foundation is connected below the segmented steel tower; The fan connecting piece is connected to the top of the segmented steel tower; A steel tower of the fan is connected above the fan connecting piece; A plurality of the segmented steel towers each include a plurality of channel steels, a square tube formed by splicing two of the channel steels forms a channel steel group, and a plurality of the channel steel groups form a quadrilateral segmented steel tower; The tower connecting member includes an inner connecting member and an outer connecting member, wherein the inner connecting member is arranged on the inner side of the segmented steel tower, and the outer connecting member is arranged on the outer side of the segmented steel tower, and the inner connecting member and the outer connecting member are respectively connected to the segmented steel tower.

2. The spliced ​​steel tower structure according to claim 1, characterized in that: The inner connecting member is connected to the segmented steel tower by bolts.

3. The spliced ​​steel tower structure according to claim 2, characterized in that: The external connecting member is connected to the segmented steel tower by bolts.

4. The spliced ​​steel tower structure according to claim 3 is characterized in that: The channel steel is provided with a reserved opening, and the bolt passes through the reserved opening on the channel steel.

5. The spliced ​​steel tower structure according to claim 1, characterized in that: The top of the wind turbine steel tower is connected to a nacelle, one side of the nacelle is connected to a hub, and blades are connected to the hub.

6. The spliced ​​steel tower structure according to claim 1, characterized in that: The fan connecting piece is in a box shape without a bottom surface, and a hole is reserved on the side of the fan connecting piece and also on the top of the fan connecting piece.

7. The spliced ​​steel tower structure according to claim 6, characterized in that: The fan connecting piece and the fan steel tower are connected by bolts through a reserved opening at the top of the fan connecting piece.

8. The spliced ​​steel tower structure according to claim 6, characterized in that: The fan connecting piece and the segmented steel tower are connected by bolts through reserved openings on the side of the fan connecting piece.

9. The spliced ​​steel tower structure according to claim 1, characterized in that: Adjacent segmented steel towers are connected by welding.

10. The spliced ​​steel tower structure according to claim 1, characterized in that: Adjacent channel steels are connected by welding.

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