CN216578490U - Assembled cavity-spliced steel-concrete fan tower cylinder - Google Patents
Assembled cavity-spliced steel-concrete fan tower cylinder Download PDFInfo
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- CN216578490U CN216578490U CN202123127421.5U CN202123127421U CN216578490U CN 216578490 U CN216578490 U CN 216578490U CN 202123127421 U CN202123127421 U CN 202123127421U CN 216578490 U CN216578490 U CN 216578490U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Abstract
The utility model discloses an assembled cavity-spliced steel-concrete fan tower cylinder, and belongs to the field of fan tower cylinders. The assembled cavity-splicing steel-concrete fan tower cylinder comprises a cavity-splicing steel-concrete combined structure cylinder body, wherein the cavity-splicing steel-concrete combined structure cylinder body is composed of more than 4 sub-units in the circumferential direction, and circumferentially adjacent sub-units are connected and fastened through circumferential nodes; the cavity-splicing steel-concrete combined structure barrel body is assembled in a segmented mode along the height direction, vertically adjacent sections are connected and fastened through vertical nodes, the structural design of the tower barrel is reasonable, and the cavity-splicing steel-concrete combined structure barrel has better structural stress performance under the condition of similar civil engineering quantity. All components of the utility model are prefabricated in factories, the on-site connection construction is convenient, the installation efficiency is high, and the utility model can save the construction cost on the premise of meeting the requirements of the wind generating set.
Description
Technical Field
The utility model belongs to the field of fan tower barrels, and particularly relates to an assembled cavity-spliced steel-concrete fan tower barrel.
Background
In recent years, wind power generation is coming to a new installed tide, the gravity center of wind power generation development begins to shift to a low wind speed area, and the development space height of wind power resources is gradually increased, so that the tower height of a fan is increased; on the other hand, the large-scale process of the wind power equipment is also developing rapidly, the large-size fan blade can improve the single machine capacity of wind power generation, and the large-size fan blade has obvious economic advantages. The load borne by the tower structure of the wind turbine generator is increased due to the factors, so that the size and the manufacturing cost of the tower are correspondingly increased; in addition, the wind turbine generator is harsh in operation environment, the tower drum structure is complex in stress, strict requirements are provided for the strength, stability, deformation, fatigue resistance and other performances of the large-scale fan tower drum, and a series of problems such as manufacturing, transportation, installation, cost and the like of the fan tower drum are caused.
At present, a tower cylinder of a fan under construction is mostly of a pure steel structure, and although the fan tower cylinder is installed quickly, the section size and the wall thickness of the steel tower cylinder are remarkably increased along with the increase of the diameter and the height of the fan tower cylinder, so that the construction cost is greatly improved. The steel-reinforced concrete mixed structure is another fan tower cylinder structure type, but the manufacturing cost is higher due to the complex processing and assembling process, and the steel-reinforced concrete mixed structure is not well suitable for large-scale fan tower cylinders.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provides an assembled cavity-spliced steel-concrete wind turbine tower.
In order to achieve the purpose, the utility model adopts the following technical scheme to realize the purpose:
an assembled cavity-splicing steel-concrete fan tower barrel comprises a cavity-splicing steel-concrete combined structure barrel body, wherein the cavity-splicing steel-concrete combined structure barrel body is composed of more than 4 sub-units in the circumferential direction, and adjacent sub-units are connected and fastened through circumferential nodes;
assembling the cavity-splicing steel-concrete combined structure cylinder body in a segmented manner along the height direction, and connecting and fastening vertically adjacent sections through vertical nodes;
the sub-units are formed by welding a plurality of first steel cavities and a plurality of second steel cavities, the second steel cavities are welded at the joints of the adjacent first steel cavities, and concrete is poured in the first steel cavities and the second steel cavities;
the first steel cavity is made of U-shaped steel;
the second steel cavity is a trapezoidal steel pipe.
Furthermore, the vertical section height of the cavity-splicing steel-concrete combined structure barrel body is 8-12 m.
Furthermore, the circumferential joints of the first steel cavities are provided with circumferential connecting steel cavities, the circumferential connecting steel cavities of the two joints are provided with circumferential connecting plates, and the circumferential connecting plates are provided with circumferential connecting bolts for fastening.
Furthermore, the joints of the first steel cavities in the height direction are provided with vertical connecting end reinforcing parts, vertical connecting plates are arranged outside the vertical connecting end reinforcing parts of the two joints, and vertical connecting bolts used for fastening are arranged on the vertical connecting plates.
Furthermore, the inner wall of the cross section of the cavity-splicing steel-concrete combined structure cylinder body is octagonal, hexagonal or quadrilateral.
Further, the concrete is lightweight aggregate concrete.
Furthermore, grouting materials are poured on the circumferential nodes.
Furthermore, the inner diameter and the outer diameter of the cavity-splicing steel-concrete combined structure cylinder body are continuously shrunk along with the increase of the height.
Compared with the prior art, the utility model has the following beneficial effects:
according to the assembled cavity-splicing steel-concrete fan tower cylinder, the main body structure is composed of hollow steel and concrete, the high tensile property of a steel structure and the high compression resistance of the concrete are fully utilized, on one hand, steel provides effective constraint for the concrete, the brittle failure of the core concrete under three-dimensional pressure is avoided, on the other hand, the concrete provides effective support for the steel, and the stability of the steel is enhanced. The fan tower drum has reasonable structural design, and has high bearing capacity, fatigue resistance and impact resistance under similar civil engineering quantity. All components of the utility model are prefabricated in factories, the on-site connection construction is convenient, the installation efficiency is high, and the construction cost is saved on the premise of meeting the requirements of the wind generating set.
Furthermore, light concrete is adopted, the weight of the member is reduced, and the transportation and hoisting cost is saved.
Further, the cross section of the utility model is a hollow octagon, hexagon or quadrangle, so as to meet the requirements of different tower section sizes, tower heights, transportation conditions and hoisting weights.
Drawings
FIG. 1 is an overall schematic of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is a schematic diagram of a circumferential node of the present invention;
figure 4 is a schematic view of the vertical node of the present invention.
Wherein, 1-splicing the steel-concrete composite structure cylinder body of the cavity; 2-a first steel cavity; 3-vertically connecting end stiffeners; 4-a second steel cavity; 5-connecting the steel cavity in the circumferential direction; 6-ring-shaped node; 7-vertical nodes; 8-annular connecting plates; 9-a circumferential connecting bolt; 10-vertical connecting plates; 11-vertical connecting bolts; 12-concrete.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the utility model described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The utility model is described in further detail below with reference to the accompanying drawings:
the assembled cavity-splicing steel-concrete fan tower barrel comprises a cavity-splicing steel-concrete combined structure barrel body 1, a first steel cavity 2, a vertical connecting end reinforcing piece 3, a second steel cavity 4, a circumferential connecting steel cavity 5, circumferential nodes 6, vertical nodes 7, circumferential connecting plates 8, circumferential connecting bolts 9, vertical connecting plates 10, vertical connecting bolts 11 and concrete 12.
Referring to fig. 1, fig. 1 is an overall structure diagram of the utility model, and the assembled cavity-splicing steel-concrete fan tower cylinder of the utility model comprises a cavity-splicing steel-concrete combined structure cylinder body 1, wherein the cavity-splicing steel-concrete combined structure cylinder body is divided into 4 sub-units along the circumferential direction and is connected and fastened through circumferential nodes 6; the cavity splicing steel-concrete combined structure barrel body 1 is assembled in a segmented mode along the height direction, and vertically adjacent sections are connected and fastened through vertical nodes 7. The vertical sectional height of the cavity-splicing steel-concrete combined structure barrel body 1 is 8-12 m. The inner diameter and the outer diameter of the fan tower barrel are continuously shrunk along with the increase of the height.
Referring to fig. 2, fig. 2 is a cross-sectional view of the utility model, and it can be seen that the cross section of the tower of the wind turbine of the utility model is a polygonal ring which is hollow as a whole. The fan tower cylinder comprises 8 first steel cavities 2 and 8 second steel cavities 4, wherein the 8 first steel cavities 2 are enclosed together, the interior of the fan tower cylinder is octagonal, and the 8 second steel cavities 4 are respectively positioned at the external corners of the adjacent first steel cavities 2. The system comprises 4 subunits, wherein the 4 subunits are connected and fastened by a circumferential node 6; each subunit is formed by welding two 1/2-length first steel cavities 2, 1 first steel cavity 2 and 2 second steel cavities 4, the second steel cavities 4 are welded between the first steel cavities 2, and concrete 12 is poured inside the first steel cavities 2 and the second steel cavities 4.
Referring to fig. 3, fig. 3 is an assembly view of the circumferential joint of the present invention, and it can be seen that at the joint of each sub-unit, the joint of the first steel cavity 2 is provided with a circumferential connecting steel cavity 5, the circumferential connecting steel cavities 5 at the two joints are provided with circumferential connecting plates 8, and the circumferential connecting plates 8 are provided with circumferential connecting bolts 9 for fastening.
Referring to fig. 4, fig. 4 is an assembly view of the vertical joint of the present invention, and it can be seen that vertical connecting end reinforcements 3 are respectively arranged at the joints of the first steel cavities 2 in the height direction, a vertical connecting plate 10 is arranged outside the vertical connecting end reinforcements 3 at the joints, and vertical connecting bolts 11 for fastening are arranged on the vertical connecting plate 10.
An assembled cavity-splicing steel-concrete combined structural unit is formed by welding a first steel-concrete combined structural subunit, a second steel-concrete combined structural subunit and an annular connecting steel cavity in a factory. And arranging a second steel-concrete combined structure subunit at the external corner of the section of the unit. And a circumferential connecting steel cavity is arranged at the circumferential end part of each cavity splicing steel-concrete combined structure unit. The first steel-concrete combined structure subunit consists of a first steel cavity and concrete, the first steel cavity is U-shaped steel formed by factory cold bending, a vertical connecting end part reinforcing piece is axially arranged in the first steel cavity, side limbs between the steel cavities are welded into a whole in a factory, and the concrete is poured inside the cavity. The second steel-concrete combined structure subunit consists of a second steel cavity and concrete, wherein the second steel cavity is a factory-welded trapezoidal steel pipe, and concrete is poured in the cavity.
A manufacturing method of an assembled cavity-spliced steel-concrete wind turbine tower comprises the following steps:
taking U-shaped steel as a first steel cavity 2 and taking a trapezoidal steel pipe as a second steel cavity 4;
pouring concrete 12 in the first steel cavity 2 and the second steel cavity 4;
welding the plurality of first steel cavities 2 and the plurality of second steel cavities 4 according to a preset shape to obtain a subunit;
connecting and fastening the annular directions of the subunits by annular nodes 6 on site to obtain a section of cavity-splicing steel-concrete combined structure barrel body 1;
repeating the operations of the fastening sub-units to obtain a plurality of sections of cavity-splicing steel-concrete combined structure cylinder bodies 1;
and connecting and fastening the cavity steel-concrete combined structure cylinder body 1 of each section in the height direction through a vertical node 7 to obtain the assembled cavity steel-concrete spliced fan tower cylinder.
The above-mentioned contents are only for illustrating the technical idea of the present invention, and the protection scope of the present invention is not limited thereby, and any modification made on the basis of the technical idea of the present invention falls within the protection scope of the claims of the present invention.
Claims (8)
1. An assembled cavity-splicing steel-concrete fan tower cylinder is characterized by comprising a cavity-splicing steel-concrete combined structure cylinder body (1), wherein the cavity-splicing steel-concrete combined structure cylinder body (1) is composed of more than 4 sub-units in the circumferential direction, and adjacent sub-units are connected and fastened through circumferential nodes (6);
the cavity splicing steel-concrete combined structure barrel body (1) is assembled in a segmented mode along the height direction, and vertically adjacent segments are connected and fastened through vertical nodes (7);
the subunit is formed by welding a plurality of first steel cavities (2) and a plurality of second steel cavities (4), the second steel cavities (4) are welded at the joint of the adjacent first steel cavities (2), and concrete (12) is poured in the first steel cavities (2) and the second steel cavities (4);
the first steel cavity (2) is made of U-shaped steel;
the second steel cavity (4) is a trapezoidal steel pipe.
2. The assembled cavity-spliced steel-concrete wind turbine tower barrel according to claim 1, wherein the vertical section height of the cavity-spliced steel-concrete combined structure barrel body (1) is 8-12 m.
3. The assembled cavity-spliced steel-concrete wind turbine tower barrel as claimed in claim 1, wherein the circumferential joints of the first steel cavities (2) are provided with circumferential connecting steel cavities (5), the circumferential connecting steel cavities (5) of the two joints are provided with circumferential connecting plates (8), and the circumferential connecting plates (8) are provided with circumferential connecting bolts (9) for fastening.
4. The assembled cavity-spliced steel-concrete wind turbine tower barrel as claimed in claim 1, wherein vertical connecting end reinforcements (3) are arranged at the joints of the first steel cavities (2) in the height direction, vertical connecting plates (10) are arranged outside the vertical connecting end reinforcements (3) at the joints of the two steel cavities, and vertical connecting bolts (11) for fastening are arranged on the vertical connecting plates (10).
5. The assembled cavity-spliced steel-concrete wind turbine tower as claimed in claim 1, wherein the inner wall of the cross section of the cavity-spliced steel-concrete combined structure barrel body (1) is octagonal, hexagonal or quadrangular.
6. The fabricated cavity-spliced steel-concrete wind turbine tower of claim 1, wherein the concrete (12) is lightweight aggregate concrete.
7. The assembled cavity-spliced steel-concrete wind turbine tower of claim 1, wherein grouting material is poured at the circumferential nodes (6).
8. The assembled cavity-spliced steel-concrete wind turbine tower according to claim 1, wherein the inner diameter and the outer diameter of the cavity-spliced steel-concrete composite structural barrel body (1) become smaller as the height becomes larger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123127421.5U CN216578490U (en) | 2021-12-13 | 2021-12-13 | Assembled cavity-spliced steel-concrete fan tower cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123127421.5U CN216578490U (en) | 2021-12-13 | 2021-12-13 | Assembled cavity-spliced steel-concrete fan tower cylinder |
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| Publication Number | Publication Date |
|---|---|
| CN216578490U true CN216578490U (en) | 2022-05-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123127421.5U Active CN216578490U (en) | 2021-12-13 | 2021-12-13 | Assembled cavity-spliced steel-concrete fan tower cylinder |
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| Country | Link |
|---|---|
| CN (1) | CN216578490U (en) |
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2021
- 2021-12-13 CN CN202123127421.5U patent/CN216578490U/en active Active
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