CN210087549U - Flange connecting assembly for fan tower cylinder and fan tower cylinder - Google Patents
Flange connecting assembly for fan tower cylinder and fan tower cylinder Download PDFInfo
- Publication number
- CN210087549U CN210087549U CN201920928913.8U CN201920928913U CN210087549U CN 210087549 U CN210087549 U CN 210087549U CN 201920928913 U CN201920928913 U CN 201920928913U CN 210087549 U CN210087549 U CN 210087549U
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- flange
- flange ring
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- wind turbine
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- 230000008878 coupling Effects 0.000 claims abstract description 28
- 238000010168 coupling process Methods 0.000 claims abstract description 28
- 238000005859 coupling reaction Methods 0.000 claims abstract description 28
- 230000000712 assembly Effects 0.000 claims abstract description 6
- 238000000429 assembly Methods 0.000 claims abstract description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 24
- 239000010959 steel Substances 0.000 claims description 24
- 235000017166 Bambusa arundinacea Nutrition 0.000 abstract description 22
- 235000017491 Bambusa tulda Nutrition 0.000 abstract description 22
- 241001330002 Bambuseae Species 0.000 abstract description 22
- 235000015334 Phyllostachys viridis Nutrition 0.000 abstract description 22
- 239000011425 bamboo Substances 0.000 abstract description 22
- 238000012423 maintenance Methods 0.000 abstract description 9
- 238000000034 method Methods 0.000 description 11
- 238000005452 bending Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000003912 environmental pollution Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000004323 axial length Effects 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
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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
-
- 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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- Wind Motors (AREA)
Abstract
The utility model provides a flange coupling assembling and a fan tower section of thick bamboo for fan tower section of thick bamboo. The flange coupling assembling for fan tower section of thick bamboo includes: a first flange including a first barrel portion and a first flange ring extending from an inner wall of the first barrel portion; a second flange including a second cylinder portion corresponding to the first cylinder portion and a second flange ring extending from an inner wall of the second cylinder portion and corresponding to the first flange ring; a sleeve portion disposed between the first flange ring and the second flange ring; a plurality of fastening assemblies passing through the first flange ring, the collar portion, and the second flange ring to fasten the first flange ring, the collar portion, and the second flange ring together. Through adopting above-mentioned flange coupling assembling, can reduce flange coupling assembling's weight, size to reduce the maintenance work volume.
Description
Technical Field
The application relates to the field of connection assemblies of wind turbine towers, and more particularly relates to a flange connection assembly and a wind turbine tower for a wind turbine tower.
Background
With the gradual increase of the power of the wind generating set, the height of the adopted wind turbine tower barrel is higher and higher, and the diameter is larger and larger. This results in an increase in the size of the flange connection assembly required for connecting the steel drum segments of the wind turbine tower, in particular the steel drum segments of the lower part of the wind turbine tower, in particular the size (thickness and width) of the flange connection plates (e.g. thick forged flanges) and the diameter and number of the bolts for connecting the flange connection plates. However, the increased size of the flange connection assembly results in increased weight of the flange connection assembly, difficulty in assembly, and susceptibility to longitudinal tearing. The diameter increase and the quantity increase of the bolts can lead to the increase of the workload of later maintenance and the increase of the maintenance cost. In addition, the large diameter bolt is difficult to manufacture and difficult to ensure quality, and requires frequent maintenance. In addition, the manufacturing difficulty of the thick forged flange is increased, the end face milling amount is large, the mechanical property is not easy to guarantee, and the thick forged flange needs to be matched with a large-diameter connecting bolt for use.
SUMMERY OF THE UTILITY MODEL
Therefore, an object of the utility model is to provide a can reduce flange coupling assembling's size and reduce the flange coupling assembling of later maintenance work load.
According to the utility model discloses an aspect provides a flange coupling assembling for a fan tower section of thick bamboo for fan tower section of thick bamboo's flange coupling assembling includes: a first flange including a first cylinder portion and a first flange ring extending from an inner wall of the first cylinder portion; a second flange including a second cylinder corresponding to the first cylinder and a second flange ring extending from an inner wall of the second cylinder and corresponding to the first flange ring; a bushing portion disposed between the first flange ring and the second flange ring; a plurality of fastening assemblies pass through the first flange ring, the sleeve portion and the second flange ring to fasten the first flange ring, the sleeve portion and the second flange ring together.
Preferably, the sleeve part may include a plurality of sleeves, each of which may have a polygonal, circular or oval cross-section, and each of which may be formed with a through-hole through which the corresponding fastening assembly passes.
Preferably, the bushing part may include a plurality of sub-bushing parts arranged along a circumferential direction of the bushing part, the sub-bushing parts may be arc-shaped, and each of the sub-bushing parts may be formed with at least two through-holes, each of which may be penetrated by a corresponding fastening assembly.
Preferably, the sleeve part may be integrally formed in a ring shape, and the sleeve part may be formed with a plurality of through-holes, each of which may be penetrated by a corresponding fastening member.
Preferably, each fastening assembly may comprise a bolt and a nut, a shank of the bolt being passable through the sleeve portion, wherein a diameter to length ratio of the shank may be 0.04 to 0.19.
Preferably, the thickness of the first flange ring or the second flange ring in the axial direction of the screw may be 2.8% to 66.7% of the length of the screw.
Preferably, the bolt may be a prestressed bolt.
Preferably, the first flange ring may be integrally formed with the first barrel portion and/or the second flange ring may be integrally formed with the second barrel portion.
Preferably, a round chamfer may be formed between the first flange ring and the first barrel portion, and/or a round chamfer may be formed between the second flange ring and the second barrel portion.
According to the utility model discloses a fan tower section of thick bamboo is provided to another aspect, and fan tower section of thick bamboo includes a plurality of steel tower sections, and adjacent steel tower section links together through as above the flange coupling assembling for fan tower section of thick bamboo in a plurality of steel tower sections, and wherein, adjacent steel tower section of thick bamboo is fixed respectively to first section of thick bamboo and second section of thick bamboo.
Through adopting above-mentioned flange coupling assembling, can form stable box atress structure, not only can strengthen flange joint's intensity, reduce flange coupling assembling's material quantity, can also avoid using the great bolt of diameter, reduce the later maintenance work load. In addition, the sleeve part is disposed between the first flange ring and the second flange ring and then fastened together with the first flange and the second flange by the fastening assembly without fixing the sleeve part through an additional process, which can reduce process complexity and avoid introduction of additional processes that may cause deformation of a workpiece, environmental pollution, and the like. Through adopting above-mentioned flange coupling assembling to connect adjacent steel tower section of thick bamboo, can realize stable connection between adjacent steel tower section of thick bamboo, improve structural stability, reduce the total weight of fan tower section of thick bamboo, improve the assembly efficiency of fan tower section of thick bamboo, need not extra technology and strengthen flange coupling assembling, reduce technology complexity, can also reduce fan tower section of thick bamboo's later maintenance work load simultaneously.
Drawings
The above and other objects, features and advantages of the present invention will be more clearly understood when the following detailed description is taken in conjunction with the accompanying drawings, in which:
fig. 1 is a cross-sectional view showing a portion of a flange connection assembly connected to a first steel drum section and a second steel drum section in accordance with an embodiment of the present invention;
fig. 2 is a perspective view illustrating a flange connection assembly according to an embodiment of the present invention, in which a sleeve part includes a plurality of sleeves;
FIG. 3 is an end view of the bushing shown in FIG. 2;
fig. 4 is a plan view illustrating a bushing part of a flange coupling assembly according to another embodiment of the present invention, wherein the bushing part includes a plurality of arc-shaped sub-bushing parts;
fig. 5 is a plan view illustrating a bushing part of a flange coupling assembly according to still another embodiment of the present invention, wherein the bushing part is integrally formed in a ring shape.
The reference numbers illustrate:
10: first flange, 11: first tube portion, 12: first flange ring, 20: second flange, 21: second tube portion, 22: second flange ring, 30: sleeve portion, 31: sleeve, 311: through hole, 32: sub-sleeve portion, 321: through hole, 331: through hole, 40: fastening assembly, 41: bolt, 42: nut, 43: gasket, 50: first steel drum section, 60: a second steel drum section.
Detailed Description
Embodiments in accordance with the present invention will now be described in detail with reference to the drawings, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.
As shown in fig. 1, the flange coupling assembling for a wind turbine tower according to the utility model discloses an embodiment includes: a first flange 10 including a first cylinder portion 11 and a first flange ring 12 extending from an inner wall of the first cylinder portion 11; a second flange 20 fitted to the first flange 10 and including a second cylindrical portion 21 corresponding to the first cylindrical portion 11 and a second flange ring 22 extending from an inner wall of the second cylindrical portion 21 and corresponding to the first flange ring 12; a sleeve portion 30 having a ring shape and disposed between the first flange ring 12 and the second flange ring 22; a plurality of fastening assemblies 40, the plurality of fastening assemblies 40 passing through the first flange ring 12, the collar portion 30 and the second flange ring 22 to fasten the first flange ring 12, the collar portion 30 and the second flange ring 22 together. The utility model discloses an in the above-mentioned embodiment, first flange 10, bushing portion 30 and second flange 20 pass through fastening components 40 fastening together to form stable box atress structure, its inside atress is simple, and this not only can strengthen flange joint's intensity, can also reduce flange coupling assembling's material quantity and avoid using the great bolt of diameter. Further, the sleeve part 30 is disposed between the first flange ring 12 and the second flange ring 22 and then fastened with the first flange 10 and the second flange 20 by the fastening assembly 40 without fixing the sleeve part 30 through an additional process, which can reduce process complexity while securing a high-strength flange connection and avoid introduction of additional processes that may cause deformation of workpieces, environmental pollution, etc.
Further, as shown in fig. 2 and 3, the bushing part 30 may include a plurality of independent bushings 31, each bushing 31 is formed with a circular through hole 311 through which the corresponding fastening member 40 passes, and the number of bushings 31 may be the same as the number of fastening members 40. Further, the outer profile cross section of the sleeve 31 is circular in shape, and the adjacent sleeves 31 do not interfere. By using a sleeve portion 30 having a plurality of sleeves 31, the amount of material and size of the flange connection assembly can be significantly reduced.
However, the embodiment of the present invention is not limited thereto, and the outer contour cross-sectional shape of the sleeve 31 may also be other shapes, for example, a polygon (may have a round chamfer), an ellipse, or the like. Preferably, the sleeve 31 has a centrosymmetric shape, which enables the sleeve 31 to be uniformly stressed.
Further, as shown in fig. 2, the plurality of sleeves 31 of the sleeve portion 30 are identical to each other, which can improve interchangeability of parts and facilitate machining. However, the embodiment of the present invention is not limited thereto, and the plurality of sleeves 31 of the sleeve part 30 may also be different from each other, for example, the outer contour sectional shape is different or the sectional shape of the through hole is different.
In addition, the sleeve portion 30 may have other structures besides being composed of the plurality of sleeves 31. Two other alternative configurations of the sleeve portion 30 will be described in detail below.
Fig. 4 shows an example in which the sleeve portion 30 includes a plurality of sub-sleeve portions 32. Specifically, the sleeve part 30 includes 10 sub sleeve parts 32 provided along a circumferential direction of the sleeve part 30 to form a ring shape. Each of the sub-sleeve portions 32 has an arc shape, and each of the sub-sleeve portions 32 is formed with 9 through holes 321, each through hole 321 through which the corresponding fastening assembly 40 passes. In the embodiment of the present invention, all the sub-sleeve portions 32 have the same structure, specifically, the number and the shape of the through holes 321 are the same and the arc length of the sub-sleeve portions 32 is the same, so that the interchangeability of the components can be improved, and the assembly and the processing are facilitated. However, the embodiment of the present invention is not limited thereto, and the number of the sub-sleeve 31 included in the sleeve part 30 is not limited to 10, and may be 2 or more, and the number of the through holes of each sub-sleeve part 32 is not limited to 9, and may be 2 or more according to design requirements. Further, all of the sub-sleeve portions may also have different structures from each other, or a part of the sub-sleeve portions may have a different structure from the remaining sub-sleeve portions. Such an arc-shaped sub-sleeve portion 32 can replace the plurality of sleeves 31 in fig. 2, and the amount of work for fitting the sleeves 31 can be reduced.
Fig. 5 shows an example in which the sleeve portion 30 is integrally formed in a circular ring shape. Specifically, the sleeve part 30 is provided in a one-piece annular shape along a circumferential direction of the sleeve part 30, and has a plurality of through holes 331, each through hole 331 for passing a corresponding fastening member 40 therethrough. That is, the through-holes 331 formed in the sleeve part 30 for all the fastening members 40 to pass through, and the present embodiment replaces all the sleeves 31 in fig. 2 with the one-piece sleeve part 30 without separately fitting each sleeve 31 on the bolts 41, which can reduce the amount of assembly work.
Further, although the sleeve portion 30 is described as being formed in a circular ring shape in the above embodiments, embodiments according to the present invention are not limited thereto, and the circular shape of the sleeve portion 30 may be changed according to the sectional shape of the barrel portion or tower section to which it is fitted. In addition, the sectional shape of the through hole 311 formed in the sleeve 31, the sectional shape of the through hole 321 formed in the sub-sleeve portion 32, and the sectional shape of the through hole 331 formed in the integrated sleeve portion 30 are also not limited to the circular shape.
Furthermore, in an embodiment according to the present invention, the fastening assembly 40 may comprise a bolt 41 and a nut 42. The diameter of the screw of the bolt 41 may be any value between 30mm and 56mm, for example 30mm, 36mm, 42mm, 48mm or 56mm, etc. The length of the screw may be anywhere between 300mm and 700mm, for example 300mm, 380mm, 420mm, 550mm, 600mm or 700mm, etc. That is, a screw having a diameter of 30mm and a length of 300mm may be used, and a screw having a diameter of 30mm and a length of 700mm may be used. In particular, the diameter and length of the screw may be selected according to the stress of the screw.
In addition, the flange connection assembly can be used to form the box stress structure, so that the bending moment borne by the first flange ring 12 and the second flange ring 22 is small, and the first flange ring 12 and the second flange ring 22 with small sizes can be adopted. In particular, the thickness of the first flange ring 12 and the second flange ring 22 may be any value between 20mm and 200mm, for example, 20mm, 50mm, 80mm, 120mm, 150mm, 180mm, or the like. The thickness of the first flange ring 12 and the second flange ring 22 and the size of the screws may be determined according to the bending moment to which the flanged connection needs to be subjected and the diameter of the tower section.
For example, in the case of a conventional flange connection assembly for connecting tower segments having a diameter of about 4300mm (in particular adjacent steel tower segments of a tower), the flange ring of the conventional flange connection assembly has a thickness of 90mm, and the screw has a diameter of 42mm and a length of 265 mm. Adopt the utility model discloses a flange coupling assembling connects under the condition that diameter is about 4300 mm's tower section of thick bamboo, flange coupling assembling's flange ring's thickness is 50mm, and the diameter of screw rod is 30mm and length is 575 mm. It follows that, compare with traditional thick type forging flange ring, according to the utility model discloses a flange coupling assembling's flange ring's thickness is showing and is reducing, and the diameter of screw diminishes and the length of screw lengthens.
In an embodiment according to the invention, the ratio of the diameter of the screw to the length may be any value between 0.04 and 0.19, e.g. 0.08 or 0.1, so that flange connections can be realized with elongated bolts. Further, the thickness of the first flange ring 12 or the second flange ring 22 in the axial direction of the screw may be 2.8% to 66.7% of the length of the screw. Through adopting the utility model discloses a flange coupling assembling can realize box atress structure, and flange joint is more stable to can reduce flange coupling assembling's material quantity and weight, can also avoid using the great bolt of diameter simultaneously.
Further, the bolt 41 may be a prestressed bolt. Before tightening the nut 42, a predetermined prestress may be applied to the bolt 41 by a tension device, and then the nut 42 is tightened again. The flange connection is realized by adopting the prestressed bolt, so that the mounting speed, the reliability and the anti-loosening capacity of the bolt connection can be improved, and the tightness and the rigidity of the connection are enhanced. In the case of using the prestressed bolt, the force applied to the first flange ring 12 by the sleeve portion 30 and the bending moment generated at the connection of the first flange ring 12 and the first cylindrical portion 11 by the prestress of the bolt 41 (i.e., the force applied to the first flange ring 12 by the nut 42) balance each other, and the force applied to the second flange ring 22 by the sleeve portion 30 and the bending moment generated at the connection of the second flange ring 22 and the second cylindrical portion 21 by the prestress of the bolt 41 (i.e., the force applied to the second flange ring 22 by the screw head of the bolt 41) balance each other. This enables a further reduction of the bending moment experienced by the first and second flange rings 12, 22, thereby further reducing the size of the first and second flange rings 12, 22, in particular the thickness and/or the radial width of the first and second flange rings 12, 22.
As shown in fig. 1, a washer 43 is also provided between the nut 42 and the first flange ring 12. The washer 43 can increase the contact area, protect the first flange ring 12 and prevent the bolt connection from loosening.
With continued reference to fig. 1, a first flange ring 12 is integrally formed with the first cylindrical portion 11 in the first flange 10, and a second flange ring 22 is integrally formed with the second cylindrical portion 21 in the second flange 20. The integrally formed first flange 10 and the second flange 20 can reduce the process complexity, improve the processing efficiency, are not easy to deform, and do not need complex tools to ensure the precision. However, according to embodiments of the present invention, not limited thereto, the first flange ring 12 and the first cylinder part 11 (or the second flange ring 22 and the second cylinder part 21) may also be fixed together by an additional process (e.g., welding).
Further, although the upper and lower ends of the sleeve part 30 are shown directly abutting against the first and second flange rings 12 and 22 in fig. 1, the axial length of the sleeve part 30 before the nut 42 is tightened is 1.5mm to 4mm smaller than the interval between the first and second flange rings 12 and 22 so that the sleeve part 30 is fitted between the first and second flange rings 12 and 22.
With continued reference to fig. 1, a round chamfer is formed between the first flange ring 12 and the first cylindrical portion 11, and a round chamfer is formed between the second flange ring 22 and the second cylindrical portion 21. These rounded chamfers improve the stress conditions (i.e. avoid stress concentrations) on the one hand and the strength and stability of the first and second flanges 10, 20 on the other hand. However, the embodiment of the present invention is not limited thereto, and the round chamfer may be formed only between the first flange ring 12 and the first cylindrical portion 11 or between the second flange ring 22 and the second cylindrical portion 21.
From the above description, it is clear to a person skilled in the art that a flange connection assembly for a wind turbine tower as described above according to an embodiment of the present invention is suitable for connecting adjacent steel tower sections of a wind turbine tower. As shown in fig. 1, the first steel tower segment 50 is secured (e.g., by welding) to the first barrel portion 11 of the first flange 10, and the second steel tower segment 60 is secured (e.g., by welding) to the second barrel portion 21 of the second flange 20. However, embodiments according to the present disclosure are not limited thereto, and a wind turbine tower may also comprise more than two steel tower segments, and steel tower segments adjacent to each other may all be connected together by a flange connection assembly as described above.
The utility model discloses an in the above-mentioned embodiment, flange coupling assembling's bushing part, first flange and second flange pass through fastening components fastening together to form stable box atress structure, its inside atress is simple, and this intensity that not only can strengthen flange joint reduces flange coupling assembling's material quantity, can also avoid using the great bolt of diameter, reduces the later maintenance work load. In addition, the sleeve part is disposed between the first flange ring and the second flange ring and then fastened together with the first flange and the second flange by the fastening assembly without fixing the sleeve part through an additional process, which can reduce process complexity and avoid introduction of additional processes that may cause deformation of a workpiece, environmental pollution, and the like. Through adopting above-mentioned flange coupling assembling to connect adjacent steel tower section of thick bamboo, can realize stable connection between adjacent steel tower section of thick bamboo, improve structural stability, reduce the total weight of fan tower section of thick bamboo, improve the assembly efficiency of fan tower section of thick bamboo, need not extra technology and strengthen flange coupling assembling, reduce technology complexity, can also reduce fan tower section of thick bamboo's later maintenance work load simultaneously.
Although a few embodiments of the present invention have been shown and described, it would be appreciated by those skilled in the art that changes may be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the claims and their equivalents.
Claims (10)
1. A flange coupling assembling for a wind turbine tower, characterized in that, a flange coupling assembling for a wind turbine tower includes:
a first flange (10) including a first cylinder portion (11) and a first flange ring (12) extending from an inner wall of the first cylinder portion (11);
a second flange (20) including a second cylinder portion (21) corresponding to the first cylinder portion (11) and a second flange ring (22) extending from an inner wall of the second cylinder portion (21) and corresponding to the first flange ring (12);
a sleeve portion (30) disposed between the first flange ring (12) and the second flange ring (22);
a plurality of fastening assemblies (40) passing through the first flange ring (12), the collar portion (30) and the second flange ring (22) to fasten the first flange ring (12), the collar portion (30) and the second flange ring (22) together.
2. The flange connection assembly for a wind turbine tower according to claim 1, characterized in that the sleeve portion (30) comprises a plurality of sleeves (31), each sleeve (31) having a cross section in the shape of a polygon, a circle or an ellipse, and each sleeve (31) is formed with a through hole (311) for the corresponding fastening assembly (40) to pass through.
3. The flange connection assembly for a wind turbine tower according to claim 1, wherein the sleeve portion (30) includes a plurality of sub-sleeve portions (32) arranged along a circumferential direction of the sleeve portion (30), the sub-sleeve portions (32) are arc-shaped, and each sub-sleeve portion (32) is formed with at least two through holes (321), each through hole (321) being penetrated by the corresponding fastening assembly (40).
4. The flange connection assembly for a wind turbine tower according to claim 1, wherein the sleeve portion (30) is integrally formed in a ring shape, the sleeve portion (30) being formed with a plurality of through holes (331), each through hole (331) being adapted to receive a corresponding fastening assembly (40).
5. The flange connection assembly for a wind turbine tower according to claim 1, wherein each fastening assembly (40) comprises a bolt (41) and a nut (42), the shank of the bolt (41) passing through the sleeve portion (30), wherein the ratio of the diameter to the length of the shank is 0.04 to 0.19.
6. The flange connection assembly for a wind turbine tower according to claim 5, characterized in that the thickness of the first flange ring (12) or the second flange ring (22) in the axial direction of the threaded rod is 2.8% to 66.7% of the length of the threaded rod.
7. Flange connection assembly for wind turbine towers according to claim 5, characterised in that said bolts (41) are prestressed bolts.
8. Flange connection assembly for a wind turbine tower according to claim 1, characterized in that the first flange ring (12) is integrally formed with the first cylinder portion (11) and/or
The second flange ring (22) is integrally formed with the second cylinder portion (21).
9. Flange connection assembly for a wind turbine tower according to claim 1, characterized in that a rounded chamfer is formed between the first flange ring (12) and the first cylinder part (11) and/or
A round chamfer is formed between the second flange ring (22) and the second cylinder portion (21).
10. A wind turbine tower comprising a plurality of steel tower segments, wherein adjacent steel tower segments (50, 60) of the plurality of steel tower segments are connected together by a flange connection assembly for a wind turbine tower according to any one of claims 1 to 9, wherein the adjacent steel tower segments (50, 60) are secured to the first and second drum portions (11, 21), respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920928913.8U CN210087549U (en) | 2019-06-19 | 2019-06-19 | Flange connecting assembly for fan tower cylinder and fan tower cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920928913.8U CN210087549U (en) | 2019-06-19 | 2019-06-19 | Flange connecting assembly for fan tower cylinder and fan tower cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210087549U true CN210087549U (en) | 2020-02-18 |
Family
ID=69483572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920928913.8U Active CN210087549U (en) | 2019-06-19 | 2019-06-19 | Flange connecting assembly for fan tower cylinder and fan tower cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210087549U (en) |
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2019
- 2019-06-19 CN CN201920928913.8U patent/CN210087549U/en active Active
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