Round tube splicing type tower drum structure

Abstract

The invention provides a circular tube splicing type tower tube structure which comprises a plurality of tower tube connecting sections connected in sequence, each tower tube connecting section comprises a lower tower tube connecting part and an upper tower tube connecting part which are spliced with each other, and each lower tower tube connecting part comprises a plurality of lower steel circular tubes and an upper end annular steel plate. A plurality of lower connecting assemblies are arranged on the upper end face of the upper end annular steel plate, and each lower connecting assembly comprises a first inner ring connecting plate and a first outer ring connecting plate; the upper section tower drum connecting part comprises a plurality of upper steel circular pipes and a lower end annular steel plate, a plurality of upper connecting assemblies are arranged on the lower end face of the lower end annular steel plate, and each upper connecting assembly comprises a second inner ring connecting plate and a second outer ring connecting plate; the first inner ring connecting plate and the second inner ring connecting plate are connected through a first connecting bolt, and the first outer ring connecting plate and the second outer ring connecting plate are connected through a second connecting bolt. The requirements for the height, rigidity and strength of the fan tower barrel can be met, and meanwhile the construction cost is considered.

Description

Technical Field

[0001] The present invention relates to the technical field of wind turbine towers, and in particular to a circular tube splicing tower structure. Background Art

[0002] In wind power projects, wind turbine towers are the supporting structures of wind turbine generator sets. Existing steel towers are mainly made of rolled steel plates, which are used to support the weight of the unit and convert wind energy into electrical energy. The height of the steel tower needs to be determined according to 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 wall thickness, and increasing steel consumption, which greatly increases the cost of production and installation.

[0003] Therefore, for megawatt-class wind turbines, the wind turbine tower must meet the requirements of height, rigidity and strength while taking into account the project cost, which has become an urgent problem that needs to be solved in the field of wind power generation technology. Summary of the invention

[0004] The object of the present invention is to provide a circular tube splicing tower structure which can meet the requirements of wind turbine tower height, rigidity and strength while taking into account the engineering cost.

[0005] The present invention provides a circular tube splicing tower structure, comprising a plurality of tower connecting sections connected in sequence from bottom to top, each of the tower connecting sections comprises a lower tower connecting part and an upper tower connecting part spliced ​​to each other, the lower tower connecting part comprises a plurality of lower steel circular tubes and an upper annular steel plate arranged in a ring shape, the upper ends of the lower steel circular tubes are respectively fixedly connected to the upper annular steel plate, a plurality of lower connecting components corresponding to the lower steel circular tubes are arranged on the upper end surface of the upper annular steel plate, and each of the lower connecting components comprises a first inner ring connecting plate and a first outer ring connecting plate Connecting plate; the upper tower section connection part includes a plurality of upper steel circular tubes and a lower annular steel plate arranged in a ring shape, the lower end of each of the upper steel circular tubes is fixedly connected to the lower annular steel plate, and a plurality of upper connecting components corresponding to the upper steel circular tubes are provided on the lower end surface of the lower annular steel plate, and each of the upper connecting components includes a second inner ring connecting plate and a second outer ring connecting plate; the first inner ring connecting plate and the second inner ring connecting plate are connected by a first connecting bolt, and the first outer ring connecting plate and the second outer ring connecting plate are connected by a second connecting bolt.

[0006] According to a circular tube splicing tower structure provided by the present invention, the second inner ring connecting plate and the second outer ring connecting plate are both arranged between the first inner ring connecting plate and the first outer ring connecting plate.

[0007] According to a circular tube splicing tower structure provided by the present invention, the first inner ring connecting plate and the second inner ring connecting plate are fitted together, and the first outer ring connecting plate and the second outer ring connecting plate are fitted together.

[0008] According to a circular tube splicing tower structure provided by the present invention, the upper ends of the first inner ring connecting plate and the first outer ring connecting plate are in contact with the lower end surface of the lower end annular steel plate respectively.

[0009] According to a circular tube spliced ​​tower structure provided by the present invention, the lower ends of the second inner ring connecting plate and the second outer ring connecting plate are respectively in contact with the upper end surface of the upper end annular steel plate.

[0010] According to a circular tube splicing tower structure provided by the present invention, the cross-section of the first inner ring connecting plate is arc-shaped, and a plurality of the first inner ring connecting plates can be enclosed to form a circular structure.

[0011] According to a circular tube splicing tower structure provided by the present invention, the cross-section of the first outer ring connecting plate is arc-shaped, and a plurality of the first outer ring connecting plates can be enclosed to form a circular structure.

[0012] According to a circular tube splicing tower structure provided by the present invention, the cross-section of the second inner ring connecting plate is arc-shaped, and a plurality of the second inner ring connecting plates can be enclosed to form a circular structure.

[0013] According to a circular tube splicing tower structure provided by the present invention, the cross-section of the second outer ring connecting plate is arc-shaped, and a plurality of the second outer ring connecting plates can be enclosed to form a circular structure.

[0014] According to a circular tube splicing tower structure provided by the present invention, two upper and lower adjacent tower connecting sections are connected by a flange.

[0015] The circular tube splicing tower structure provided by the present invention can complete the manufacture of the upper tower connection part and the lower tower connection part in the factory, and then transport the required number of upper tower connection parts and lower tower connection parts to the construction site, which is convenient for transportation and effectively reduces the transportation cost; then the corresponding lower tower connection part is connected to the upper tower connection part at the construction site to form a tower connection section, and then the sequential splicing and installation between each tower connection section is completed by hoisting, which is convenient for construction and effectively improves the construction efficiency; and because each lower tower connection part is supported by a plurality of lower steel circular tubes arranged in a ring as the supporting body, and each upper tower connection part is supported by a plurality of upper steel circular tubes arranged in a ring as the supporting body, it is ensured that the tower connection section can meet the structural strength and rigidity requirements of the tower; and the structural form in which the plurality of tower connection sections are connected in sequence can meet the height requirements of the tower. Therefore, the circular tube splicing tower structure provided by the present invention can meet the requirements of the tower structure for height, rigidity and strength while taking into account the engineering cost, thereby reducing the cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific implementation methods of the present invention 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 present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the spliced ​​steel-concrete tower structure of the present invention;

[0018] Figure 2 It is a structural schematic diagram of a tower connection section in a spliced ​​steel-concrete tower structure of the present invention;

[0019] Figure 3 It is a schematic diagram of the installation of multiple tower connection sections in the spliced ​​steel-concrete tower structure of the present invention;

[0020] Figure 4 for Figure 3 An AA section view;

[0021] Figure 5 for Figure 3 Another AA section view;

[0022] Figure 6 for Figure 3 BB section view;

[0023] Figure 7 for Figure 6 CC section view;

[0024] Figure 8 It is a top view of the structure of the lower tower connection portion in the spliced ​​steel-concrete tower structure of the present invention;

[0025] Fig. 9 It is a bottom view of the structural portion of the upper tower connection portion of the spliced ​​steel-concrete tower structure of the present invention.

[0026] Description of reference numerals:

[0027] 100, tower connection section; 101, lower tower connection section; 102, upper tower connection section;

[0028] 1. Lower steel circular tube; 2. Upper annular steel plate; 3. First inner ring connecting plate; 4. First outer ring connecting plate; 5. Upper steel circular tube; 6. Lower annular steel plate; 7. Second inner ring connecting plate; 8. Second outer ring connecting plate; 9. First connecting bolt; 10. Second connecting bolt; 11. Concrete; 12. Flange plate; 121. Inner ring flange hole; 122. Outer ring flange hole. DETAILED DESCRIPTION

[0029] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[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 indicate orientations or positional relationships based on the orientations 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 referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0031] In addition, the terms "first" and "second" are only used for descriptive purposes 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 invention, "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 those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] like Figures 1 to 9 As shown, the circular tube spliced ​​tower structure of the embodiment of the present invention includes a plurality of tower connection sections 100 sequentially connected from bottom to top, and each tower connection section 100 includes a lower tower connection part 101 and an upper tower connection part 102 spliced ​​to each other.

[0033] Among them, the lower section tower connection part 101 includes a plurality of lower steel circular tubes 1 and an upper annular steel plate 2 arranged in a ring shape, the upper end of each lower steel circular tube 1 is fixedly connected to the upper annular steel plate 2, and a plurality of lower connection components corresponding to the lower steel circular tubes 1 are provided on the upper end surface of the upper annular steel plate 2, and each lower connection component includes a first inner ring connection plate 3 and a first outer ring connection plate 4.

[0034] Among them, the upper tower connection part 102 includes a plurality of upper steel circular tubes 5 and a lower annular steel plate 6 arranged in a ring shape, the lower end of each upper steel circular tube 5 is fixedly connected to the lower annular steel plate 6, and a plurality of upper connection components corresponding to the upper steel circular tubes 5 are provided on the lower end surface of the lower annular steel plate 6, and each upper connection component includes a second inner ring connection plate 7 and a second outer ring connection plate 8.

[0035] The first inner ring connecting plate 3 and the second inner ring connecting plate 7 are connected via first connecting bolts 9 , and the first outer ring connecting plate 4 and the second outer ring connecting plate 8 are connected via second connecting bolts 10 .

[0036] Thus, the manufacture of the upper tower connection part 102 and the lower tower connection part 101 can be completed in the factory, and then the required number of upper tower connection parts 102 and lower tower connection parts 101 can be transported to the construction site, which is convenient for transportation and effectively reduces the transportation cost. Then, the corresponding lower tower connection part 101 is connected to the upper tower connection part 102 at the construction site to form a tower connection section 100, and then the sequential splicing and installation between each tower connection section 100 is completed by hoisting, which is convenient for construction and effectively improves the construction efficiency. In addition, since each lower tower connection part 101 is supported by multiple lower steel round tubes 1 arranged in a ring shape, and each upper tower connection part 102 is supported by multiple upper steel round tubes 5 arranged in a ring shape, it is ensured that the tower connection section 100 can meet the structural strength and stiffness requirements of the tower. The structural form in which multiple tower connection sections 100 are connected in sequence can meet the height requirements of the tower.

[0037] Therefore, the circular tube splicing tower structure of the embodiment of the present invention can meet the requirements of the tower structure for height, rigidity and strength while taking into account the engineering cost, thereby reducing the cost.

[0038] Specifically, concrete 11 may be poured into each lower steel circular tube 1 and each upper steel circular tube 5 to further improve the overall structural strength of the tower.

[0039] Specifically, two upper and lower adjacent tower connection sections 100 are connected by flanges. That is, flange plates 12 are respectively provided at the upper and lower ends of each tower connection section 100, and the flange plates 12 are respectively provided with a plurality of inner circle flange holes 121 and a plurality of outer circle flange holes 122, so as to ensure a reliable connection between the two tower connection sections 100.

[0040] In some embodiments of the present invention, a plurality of first outer ring connecting plates 4 are arranged on the periphery of a plurality of first inner ring connecting plates 3, and a plurality of second outer ring connecting plates 8 are arranged on the periphery of a plurality of second inner ring connecting plates 7. Each first inner ring connecting plate 3 is fixedly mounted on the upper end annular steel plate 2, and each first inner ring connecting plate 3 is arranged one-to-one with each lower steel circular tube 1. Each first outer ring connecting plate 4 is fixedly mounted on the upper end annular steel plate 2, and each first outer ring connecting plate 4 is arranged one-to-one with each lower steel circular tube 1.

[0041] During installation, the second inner ring connecting plate 7 and the second outer ring connecting plate 8 are both arranged between the first inner ring connecting plate 3 and the first outer ring connecting plate 4. The first inner ring connecting plate 3 and the second inner ring connecting plate 7 are arranged in close contact with each other, and the first outer ring connecting plate 4 and the second outer ring connecting plate 8 are arranged in close contact with each other. And the upper ends of the first inner ring connecting plate 3 and the first outer ring connecting plate 4 are respectively in contact with the lower end surface of the lower end annular steel plate 6. The lower ends of the second inner ring connecting plate 7 and the second outer ring connecting plate 8 are respectively in contact with the upper end surface of the upper end annular steel plate 2. This structural form of the lower connecting assembly and the upper connecting assembly can realize the rapid and reliable installation and docking between the lower tower section connecting part 101 and the upper tower section connecting part 102, reduce the construction difficulty, make the construction and installation more convenient, and effectively improve the construction efficiency.

[0042] In some embodiments of the present invention, the cross section of the first inner ring connecting plate 3 is an arc, and a plurality of first inner ring connecting plates 3 can be enclosed to form a circular structure. The cross section of the first outer ring connecting plate 4 is an arc, and a plurality of first outer ring connecting plates 4 can be enclosed to form a circular structure. The cross section of the second inner ring connecting plate 7 is an arc, and a plurality of second inner ring connecting plates 7 can be enclosed to form a circular structure. The cross section of the second outer ring connecting plate 8 is an arc, and a plurality of second outer ring connecting plates 8 can be enclosed to form a circular structure. That is, this structural arrangement of the lower connecting assembly and the upper connecting assembly can further improve the structural stability and reliability after the lower connecting assembly and the upper connecting assembly are connected.

[0043] 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 aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A circular tube splicing tower structure, characterized in that: It comprises a plurality of tower connecting sections connected in sequence from bottom to top, each of the tower connecting sections comprises a lower tower connecting part and an upper tower connecting part spliced ​​to each other, the lower tower connecting part comprises a plurality of lower steel circular tubes and an upper annular steel plate arranged in a ring shape, the upper end of each of the lower steel circular tubes is fixedly connected to the upper annular steel plate, and a plurality of lower connecting assemblies corresponding to the lower steel circular tubes are arranged on the upper end surface of the upper annular steel plate, each of the lower connecting assemblies comprises a first inner ring connecting plate and a first outer ring connecting plate; the upper tower The connecting part includes a plurality of upper steel circular tubes and a lower annular steel plate arranged in a ring shape, the lower end of each of the upper steel circular tubes is fixedly connected to the lower annular steel plate, and a plurality of upper connecting components corresponding to the upper steel circular tubes are provided on the lower end surface of the lower annular steel plate, and each of the upper connecting components includes a second inner ring connecting plate and a second outer ring connecting plate; the first inner ring connecting plate and the second inner ring connecting plate are connected by a first connecting bolt, and the first outer ring connecting plate and the second outer ring connecting plate are connected by a second connecting bolt.

2. The circular tube splicing tower structure according to claim 1, characterized in that: The second inner ring connecting plate and the second outer ring connecting plate are both arranged between the first inner ring connecting plate and the first outer ring connecting plate.

3. The circular tube splicing tower structure according to claim 1, characterized in that: The first inner ring connecting plate and the second inner ring connecting plate are arranged in close contact with each other, and the first outer ring connecting plate and the second outer ring connecting plate are arranged in close contact with each other.

4. The circular tube splicing tower structure according to claim 1, characterized in that: The upper ends of the first inner ring connecting plate and the first outer ring connecting plate are respectively in contact with the lower end surface of the lower end annular steel plate.

5. The circular tube splicing tower structure according to claim 1, characterized in that: The lower ends of the second inner ring connecting plate and the second outer ring connecting plate are respectively in contact with the upper end surface of the upper end annular steel plate.

6. The circular tube splicing tower structure according to claim 1, characterized in that: The cross section of the first inner ring connecting plate is arc-shaped, and a plurality of the first inner ring connecting plates can be enclosed to form a circular structure.

7. The circular tube splicing tower structure according to claim 1, characterized in that: The cross section of the first outer ring connecting plate is arc-shaped, and a plurality of the first outer ring connecting plates can be enclosed to form a circular structure.

8. The circular tube splicing tower structure according to claim 1, characterized in that: The cross section of the second inner ring connecting plate is arc-shaped, and a plurality of the second inner ring connecting plates can be enclosed to form a circular structure.

9. The circular tube splicing tower structure according to claim 1, characterized in that: The cross section of the second outer ring connecting plate is arc-shaped, and a plurality of the second outer ring connecting plates can be enclosed to form a circular structure.

10. The circular tube splicing tower structure according to claim 1, characterized in that: The two upper and lower adjacent tower connecting sections are connected via flanges.

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