CN216617752U - Novel split assembly type steel wind power tower connected by section steel flanges - Google Patents
Novel split assembly type steel wind power tower connected by section steel flanges Download PDFInfo
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- CN216617752U CN216617752U CN202220768733.XU CN202220768733U CN216617752U CN 216617752 U CN216617752 U CN 216617752U CN 202220768733 U CN202220768733 U CN 202220768733U CN 216617752 U CN216617752 U CN 216617752U
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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
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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
- Y02E10/728—Onshore wind turbines
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Abstract
The utility model discloses a novel sectional steel flange-connected split assembly type steel wind power tower frame which comprises steel tower tube segments, seam bolts, annular high-strength bolts, a section steel flange, a flange connecting plate and connecting plate bolts. The steel tower cylinder segments can be connected into a cylinder section, and the cylinder section is connected with a fan foundation or connected with an upper cylinder section and a lower cylinder section in a staggered manner to form steel wind power towers with different heights. The section steel flange at the joint surface can bear the load of the large-diameter tower, can prevent the barrel from deforming under the pretightening force of the bolt or the operation acting force of the fan, and has high structural safety. The size of each steel tower cylinder segment meets the requirements of height and width limitation of road transportation, the steel tower cylinders can be spliced and hung on site without on-site welding, flaw detection and anticorrosive treatment, the structural quality of the tower is ensured, and the requirement of quick combination and hoisting is met.
Description
Technical Field
The utility model relates to the technical field of wind power towers, in particular to a novel split assembly type steel wind power tower connected by section steel flanges.
Background
With the increasing development of onshore wind power resources and the rapid progress of wind power technology in China, wind generating sets are developing towards large single machine capacity and large impeller diameter. The large-scale of fan needs the diameter of increase bottom tower section of thick bamboo, improves the bearing capacity of a tower section of thick bamboo, guarantees the safe and stable operation of pylon. The transportation of the whole section type large-diameter tower barrel has high requirements on transportation vehicles and road conditions, and the limitation of the width and height of road transportation needs to be considered, so that the large-diameter tower barrel cannot be conveniently and economically applied to most of regions rich in wind resources.
The vertical joint close flange of the traditional slicing steel tower is thick in size, large in steel consumption and high in manufacturing cost, and the joint close bolt is short in length, so that the problem of loosening and fatigue is easy to occur, and long-term healthy operation of a wind turbine generator is not facilitated.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a novel sectional assembly type steel wind power tower frame connected by section steel flanges, which adopts section steel to replace a vertical flange of a traditional sectional steel tower, has reasonable connection structure design, strong fatigue resistance and convenient processing, transportation and installation, can be stacked and placed, can be radiatively transported to wind power plants in different terrain areas by adopting a conventional transportation vehicle, can be spliced and hung on site, does not need on-site welding, flaw detection and anticorrosion treatment, ensures the structural quality of the tower frame, and realizes the requirement of quick combined hoisting.
In order to achieve the purpose, the technical scheme adopted by the utility model is as follows:
the utility model provides a shaped steel flange joint's novel split assembled steel wind power tower, is formed its characterized in that by the equipment of a plurality of sections steel cylinder sections: the steel cylinder section comprises a plurality of steel cylinder sections, joint bolts, annular high-strength bolts, section steel flanges, flange connecting plates and connecting plate bolts;
the steel tower barrel is characterized in that the steel tower barrel is divided into sections, wherein the sections are formed by connecting a bottom flange, a barrel arc steel plate, a top flange and a section steel flange into a whole through welding;
connecting plate bolt through holes are formed in the left side end part and the right side end part of the steel tower barrel partition and are used for being connected with flange connecting plates;
the bottom flange and the top flange are provided with annular high-strength bolt holes for connecting the steel cylinder sections with the fan foundation and the upper and lower steel cylinder sections;
the section steel flanges are welded on the left side and the right side of the cylinder body along straight lines, a plurality of seam-closing bolt through holes are uniformly formed in the section steel flanges, and the steel tower cylinder is spliced by pre-tightening the section steel flanges and the seam-closing bolts;
a flange connecting plate mounting gap is reserved between the upper end of the section steel flange and the top flange, and a flange connecting plate mounting gap is reserved between the lower end of the section steel flange and the bottom flange;
the flange connecting plate is L-shaped and consists of a horizontal connecting plate and a vertical connecting plate. The horizontal connecting plate is provided with annular high-strength bolt through holes, and the through holes are symmetrically arranged on the joint surfaces among the steel tower barrel fragments; the vertical connecting plate is provided with connecting plate bolt through holes, and the positions of the through holes are symmetrically arranged on the joint surface;
the horizontal connecting plate is connected with the bottom flange and the top flange of the adjacent steel tower barrel piece through the annular high-strength bolt at the joint, the vertical connecting plate is connected with the steel barrel body at the joint and the left and right adjacent steel tower barrel piece through the connecting plate bolt, and the bottom flange, the top flange, the steel barrel body and the flange connecting plate are integrally connected.
Further, the section steel flange can be a channel steel, a square steel or other section steel.
Further, the radian of the vertical connecting plate is matched with that of the inner wall of the cylinder.
Furthermore, after the steel tower barrels are connected into rings in a segmented mode, the upper section of the barrel section and the lower section of the barrel section are connected through the annular high-strength bolts to form the wind power towers with different heights in a combined mode. The utility model has the following advantages and beneficial effects:
(1) the novel sectional steel flange-connected wind power tower made of steel is reasonable in structural design, the shell ring can be divided into more than 3 pieces according to needs, and the manufacturing is convenient. For the steel cylinder section with larger diameter, the size can be conveniently designed to meet the requirements of height and width limitation of common road transportation, the steel cylinder section is transported in a split-sheet overlapping manner, the steel cylinder section is convenient and quick, and the transportation cost can be saved. The shell ring meeting the road transportation requirement can be connected into a whole ring for transportation.
(2) The flange joint is connected with the top flange or the bottom flange at the joint and the joint surface of the cylinder by bolts, and can be quickly spliced and assembled when being transported to the site, so that the time for site welding, flaw detection and antiseptic treatment is saved.
(3) According to the utility model, the steel tower tube is combined into the sections in a split manner, and the sections are connected in a mode of the section steel flange and the joint bolt, so that the joint surfaces are tightly attached.
(4) The section steel flange at the joint surface of the steel tower cylinder segments can bear the load of a large-diameter tower, can prevent the cylinder from deforming under the pretightening force of bolts or the operating action force of a fan, and has high structural safety.
(5) The flange and the cylinder are connected into a whole by the flange connecting plate, so that the joint surface is stressed integrally, and the integral stability of the tower cylinder structure is improved.
Drawings
FIG. 1 is a schematic diagram of a novel split assembly type steel wind power tower generator set connected by a steel flange.
FIG. 2 is a structural view of the novel steel wind tower made of split assembly type steel connected by steel flanges according to the present invention.
FIG. 3 is a partial enlarged view of the novel split assembly steel wind tower of the present invention with steel flanges connected.
FIG. 4 is a block diagram of a steel tower segment in accordance with the present invention.
Fig. 5 is a partially enlarged view of a portion a in fig. 4.
Fig. 6 is a structural view of a flange connection plate.
FIG. 7 is a partial block diagram of a steel tower segment using square steel seaming flanges.
Detailed Description
In order that those skilled in the art will better understand the technical solutions of the present invention, the following description of the preferred embodiments of the present invention is provided in conjunction with specific examples, but it should be understood that the drawings are for illustrative purposes only and should not be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.
The present invention is further illustrated by the following examples, which are not to be construed as limiting the utility model.
As shown in fig. 1, the novel steel-flanged split assembly type wind turbine generator set includes a tower 1, a fan foundation 9, and a wind turbine generator 10, wherein the tower 1 is composed of multiple steel cylinder sections 8 with different diameters and installed in staggered joints.
As shown in fig. 2 to 7, the steel cylinder section 8 includes a steel cylinder segment 2, a seam-joining bolt 3, a circumferential high-strength bolt 4, a flange connecting plate 5, and a connecting plate bolt 6. Each steel shell section 8 may be formed by connecting more than 3 equal steel tower segments 2.
The steel tower tube segment 2 is formed by connecting a bottom flange 201, a cylinder arc steel plate 202, a top flange 203 and a steel section flange 205 into a whole through welding. The left and right side ends of the steel tower cylinder segment 2 are provided with cylinder bolt through holes 204 for connecting with the flange connecting plate 5. The left side and the right side of the steel tower cylinder segment 2 are welded with the section steel flanges 205, the section steel flanges 205 can adopt channel steel, and except that two ends of the section steel flanges are used for connecting the flange connecting plates 5, the section steel flanges 205 are arranged along the full length of the left side and the right side of the steel tower cylinder segment 2, so that the appearance of the steel tower cylinder segment 2 can be further reduced under the conditions of the same central angle and the same diameter. A plurality of seam-welded bolt through holes 206 are uniformly formed in the section steel flange 205, and the steel tower barrel slices 2 are spliced by pre-tightening the section steel flange 205 and the seam-welded bolts 3. A flange connecting plate 5 mounting gap is reserved between the upper end of the section steel flange 205 and the top flange 203, and a flange connecting plate 5 mounting gap is reserved between the lower end of the section steel flange 205 and the bottom flange 201.
The flange connecting plate 5 is L-shaped and consists of a horizontal connecting plate 501 and a vertical connecting plate 502, the horizontal connecting plate 501 is provided with circumferential high-strength bolt through holes 503, the number of the circumferential high-strength bolt through holes 503 can be 2 or more, and the through holes are symmetrically arranged on a joint plane 7 between the steel tower barrel slices 2 and concentrically correspond to the positions of the flange through holes 505 on the bottom flange 201 or the top flange 203. The vertical connecting plate 502 is matched with the inner wall of the cylinder arc steel plate 202 in radian, and is provided with connecting plate bolt through holes 504, and the through holes are symmetrically arranged with a joint surface 7 and concentrically correspond to the cylinder bolt through holes 204 on the steel tower cylinder segment 2.
And (3) transporting the steel tower barrel segment 2 to the site for assembly, mounting the joint bolt 3 by using the joint bolt through hole 206 on the section steel flange 205 and applying pretightening force to enable the joint surface 7 to be tightly attached. The flange connecting plate 5 is installed on the inner side of the steel tower tube segment 2, one end of the flange connecting plate is connected with the bottom flange 201 and the top flange 202 of the adjacent steel tower tube segment 2 through the annular high-strength bolts 4, and the other end of the flange connecting plate is connected with the left and right adjacent steel tower tube segments 2 through the connecting plate bolts 6. A plurality of steel tower segments 2 are connected into a steel tower section 8.
In the novel sectional steel flange-connected split assembly type steel wind power tower 1, the steel cylinder sections 8 meeting the road transportation requirements can be assembled into a whole ring and transported to the site after being manufactured. The steel cylinder sections 8 which do not meet the road transportation requirements can be assembled on site after being processed according to the slicing form.
Each steel cylinder section 8 is connected with a fan foundation 9 through a circumferential high-strength bolt 4 by means of hoisting machinery, or the upper and lower cylinder sections 8 are connected in a staggered manner through the circumferential high-strength bolts 4 to form wind power towers with different heights.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all simple modifications and equivalent variations of the above embodiments according to the technical spirit of the present invention are included in the scope of the present invention.
Claims (4)
1. The utility model provides a shaped steel flange joint's novel split assembled steel wind power tower, is formed its characterized in that by the equipment of a plurality of sections steel cylinder sections: the steel cylinder section comprises a plurality of steel cylinder sections, joint bolts, annular high-strength bolts, section steel flanges, flange connecting plates and connecting plate bolts;
the steel tower barrel is characterized in that the steel tower barrel is divided into sections, wherein the sections are formed by connecting a bottom flange, a barrel arc steel plate, a top flange and a section steel flange into a whole through welding;
connecting plate bolt through holes are formed in the left side end part and the right side end part of the steel tower barrel partition and are used for being connected with flange connecting plates;
the bottom flange and the top flange are provided with annular high-strength bolt holes for connecting the steel cylinder sections with the fan foundation and the upper and lower steel cylinder sections;
the section steel flanges are welded on the left side and the right side of the cylinder body along straight lines, a plurality of seam-closing bolt through holes are uniformly formed in the section steel flanges, and the steel tower cylinder is spliced by pre-tightening the section steel flanges and the seam-closing bolts;
a flange connecting plate mounting gap is reserved between the upper end of the section steel flange and the top flange, and a flange connecting plate mounting gap is reserved between the lower end of the section steel flange and the bottom flange;
the flange connecting plate is L-shaped and consists of a horizontal connecting plate and a vertical connecting plate;
the horizontal connecting plate is provided with annular high-strength bolt through holes, and the through holes are symmetrically arranged on the joint surfaces among the steel tower barrel fragments; the vertical connecting plate is provided with connecting plate bolt through holes, and the positions of the through holes are symmetrically arranged on the joint surface;
the horizontal connecting plate is connected with the bottom flange and the top flange of the adjacent steel tower barrel piece through the annular high-strength bolt at the joint, the vertical connecting plate is connected with the steel barrel body at the joint and the left and right adjacent steel tower barrel piece through the connecting plate bolt, and the bottom flange, the top flange, the steel barrel body and the flange connecting plate are integrally connected.
2. The novel sectional steel flanged split assembly type steel wind power tower as claimed in claim 1, wherein: the section steel flange is made of channel steel or square steel.
3. The novel sectional steel flanged split assembly type steel wind power tower as claimed in claim 1, wherein: the radian of the vertical connecting plate is matched with that of the inner wall of the cylinder.
4. The novel sectional steel flanged split assembly type steel wind power tower as claimed in claim 1, wherein: after the steel tower barrels are connected into rings in a segmented mode, the upper section of the tower barrel section and the lower section of the tower barrel section are connected through the annular high-strength bolts to form the wind power tower frames with different heights in a combined mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220768733.XU CN216617752U (en) | 2022-04-06 | 2022-04-06 | Novel split assembly type steel wind power tower connected by section steel flanges |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220768733.XU CN216617752U (en) | 2022-04-06 | 2022-04-06 | Novel split assembly type steel wind power tower connected by section steel flanges |
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| CN216617752U true CN216617752U (en) | 2022-05-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220768733.XU Active CN216617752U (en) | 2022-04-06 | 2022-04-06 | Novel split assembly type steel wind power tower connected by section steel flanges |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115059582A (en) * | 2022-06-20 | 2022-09-16 | 福建工程学院 | Polygonal wind power tower barrel split type combined structure and wind power tower barrel and application thereof |
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2022
- 2022-04-06 CN CN202220768733.XU patent/CN216617752U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115059582A (en) * | 2022-06-20 | 2022-09-16 | 福建工程学院 | Polygonal wind power tower barrel split type combined structure and wind power tower barrel and application thereof |
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