CN106762441B - Transition connecting piece and wind power tower - Google Patents
Transition connecting piece and wind power tower Download PDFInfo
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- CN106762441B CN106762441B CN201611145806.5A CN201611145806A CN106762441B CN 106762441 B CN106762441 B CN 106762441B CN 201611145806 A CN201611145806 A CN 201611145806A CN 106762441 B CN106762441 B CN 106762441B
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- 230000007704 transition Effects 0.000 title claims abstract description 61
- 239000002184 metal Substances 0.000 claims description 32
- 238000005266 casting Methods 0.000 abstract description 15
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 238000010276 construction Methods 0.000 abstract description 8
- 238000000034 method Methods 0.000 description 4
- 238000003466 welding Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009417 prefabrication Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 239000010959 steel Substances 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
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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 invention belongs to the technical field of wind power towers, and provides a transition connecting piece and a wind power tower, wherein a circular truncated cone-shaped cylinder body of the transition connecting piece is formed by detachably splicing a plurality of conical arc plates which are distributed around the axis of the cylinder body and have the same height; the outer diameters of the upper end and the lower end of the cylinder body are different, so that transitional connection of tower cylinder sections with different outer diameters can be realized, a large number of straight-cylinder-shaped tower cylinder sections can be used for replacing conical tower cylinder sections during tower frame construction, and the casting difficulty and the mold cost of the tower cylinder sections are greatly reduced; two adjacent straight cylinder sections with different outer diameters of the wind power tower are connected through the transition connecting piece, and due to the transition connecting piece, a large number of straight cylinder-shaped tower cylinder sections can be used for replacing conical tower cylinder sections, the straight cylinder sections are simple in structure, the casting process requirement is low, and the casting difficulty of the tower cylinder sections is reduced; the straight cylinder section has lower requirements on the die, and the die has low manufacturing cost; the straight cylinder sections with the same outer diameter can be cast in batches by one set of die, so that the number of the dies is greatly reduced, and the cost of the dies is further reduced.
Description
Technical Field
The invention relates to the technical field of wind power towers, in particular to a transition connecting piece and a wind power tower.
Background
For a wind generating set tower, when the hub center exceeds a certain height, the concrete tower is more advantageous than a steel tower. The pursuit of high towers is the development trend of the wind power industry at present, and higher hub center means higher generated energy income.
Concrete towers are now widely used worldwide due to cost advantages in high towers. The concrete tower usually adopts the construction process of segmentation prefabrication, and at present most concrete towers are full cone-shaped, and tower section of full cone-shaped has higher requirement to the mould, and mould processing cost is high, and tower section casting is more difficult, because each section tower section size all differs, need set up the mould for every tower section, and the mould cost is high, and interchangeability is poor, and manufacturing cost is high.
Disclosure of Invention
Technical problem to be solved
The technical problem to be solved by the invention is as follows: the problems that a tower barrel section of a full-cone concrete tower is difficult to cast and the cost of a mold is high are solved.
(II) technical scheme
In order to solve the technical problem, the invention provides a transition connecting piece which comprises a circular truncated cone-shaped cylinder body, wherein the cylinder body is formed by splicing a plurality of conical arc plates which are distributed around the axis of the cylinder body and have the same height, and the adjacent conical arc plates are detachably connected; the upper end and the lower end of the conical arc plate are provided with arc-shaped flange sections with connecting holes.
The left side and the right side of each conical arc plate are respectively provided with a connecting plate, each connecting plate is provided with a connecting hole, and the adjacent connecting plates of the conical arc plates are mutually attached and are mutually connected through bolts penetrating through the connecting holes.
And two ends of the connecting plate are respectively connected with the two arc-shaped flange sections at the upper end and the lower end of the conical arc plate.
Wherein the connecting plate extends along the generatrix direction of the cylinder.
Wherein, the connecting plate, arc flange section all connect in the inboard of toper arc board.
The conical arc plate, the arc flange section and the connecting plate are connected by welding or integrally cast.
Wherein the cylinder is made of metal.
The invention also discloses a wind power tower, which comprises a foundation and a plurality of straight cylinder sections, wherein the foundation and the straight cylinder sections and/or two adjacent straight cylinder sections with different outer diameters are connected through the transition connecting piece.
The plurality of straight cylinder sections comprise concrete straight cylinder sections made of concrete and metal straight cylinder sections made of metal; a longitudinal channel extending along the length direction of the concrete straight cylinder section is arranged in the concrete straight cylinder section; both ends of the metal straight cylinder section are flange surfaces.
The foundation is connected with the concrete straight cylinder section, a prestressed cable is fixedly connected in the foundation, and the prestressed cable penetrates through the longitudinal channel and then is fastened at the joint of the concrete straight cylinder section and the transition connecting piece or the next straight cylinder section.
(III) advantageous effects
The technical scheme has the following advantages: the invention provides a transition connecting piece, wherein a circular truncated cone-shaped cylinder body is formed by detachably splicing a plurality of conical arc plates which are distributed around the axis of the cylinder body and have the same height, and the upper end and the lower end of each conical arc plate are provided with arc-shaped flange sections with connecting holes so as to form a complete flange after splicing; the outer diameters of the upper end and the lower end of the cylinder body are different, so that transitional connection of tower cylinder sections with different outer diameters can be realized, a large number of straight-cylinder-shaped tower cylinder sections can be used for replacing conical tower cylinder sections during tower frame construction, and the casting difficulty and the mold cost of the tower cylinder sections are greatly reduced; according to the wind power tower provided by the invention, the foundation and the straight cylinder sections and/or the adjacent two straight cylinder sections with different outer diameters are connected through the transition connecting piece, and due to the existence of the transition connecting piece, a large number of straight cylinder-shaped tower cylinder sections can be used for replacing conical tower cylinder sections to build the wind power tower; the straight cylinder section has lower requirements on the die, and the die has low manufacturing cost; the straight cylinder sections with the same outer diameter can be cast in batches by one set of die, so that the number of the dies is greatly reduced, and the cost of the dies is further reduced.
Drawings
FIG. 1 is a schematic illustration of the construction of the transition piece of the present invention;
FIG. 2 is a schematic structural view of a tapered arc plate according to the present invention;
FIG. 3 is a schematic semi-sectional view of the transition piece of the present invention in connection with a straight section;
FIG. 4 is an enlarged partial schematic view at A of FIG. 3;
FIG. 5 is an enlarged partial schematic view at B in FIG. 3;
FIG. 6 is a schematic view of the connection of the straight section to the foundation according to the present invention;
FIG. 7 is a schematic structural view of a wind tower according to the present invention.
Wherein, 1, base; 21. a concrete straight cylinder section; 22. a metal straight cylinder section; 3. a transition piece; 31. a conical arc plate; 311. an arcuate flange section; 312. connecting holes; 313. a connecting plate; 314. connecting holes; 4. a prestressed cable; 5. and (4) bolts.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the present invention, it is to be noted that, unless otherwise specified, the range of "above" includes the present number, and the meaning of "plural" is two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood as appropriate to those of ordinary skill in the art.
The first embodiment is as follows:
as shown in fig. 1 and fig. 2, the present embodiment provides a transition connector 3, which includes a circular truncated cone-shaped cylinder, where the cylinder is formed by splicing a plurality of conical arc plates 31 distributed around an axis of the cylinder and having the same height, and adjacent conical arc plates 31 are detachably connected; the upper and lower ends of the conical arc plate 31 are provided with arc-shaped flange sections 311 with connecting holes 312. The barrel is formed by splicing a plurality of conical arc plates 31 with the same height, a truncated cone-shaped barrel with the top surface parallel to the bottom surface is formed after splicing, and the arc-shaped flange sections 311 are spliced into a complete closed-loop flange at the upper end and the lower end of the barrel respectively; the circular truncated cone-shaped cylinder body has different outer diameters of the upper end and the lower end, can realize transition connection of tower cylinder sections with different outer diameters, can replace a conical tower cylinder section with a large number of straight cylinder-shaped tower cylinder sections when being built for the tower frame, and greatly reduces the casting difficulty of the tower cylinder sections and the mold cost; the barrel is formed by detachably splicing a plurality of conical arc plates 31, and the conical arc plates 31 are independently processed, so that the process is simple; if all the conical arc plates 31 of the same cylinder body have the same size, a set of equipment can be used for mass production, so that the processing difficulty and the manufacturing cost of the transition connecting piece 3 are greatly reduced; the barrel is formed by splicing a plurality of conical arc plates 31 in a detachable mode, and the conical arc plates 31 are small in size and convenient to transport.
Preferably, the barrel is made of metal. Since the transition piece 3 is only used to form the transition between the tower sections with different outer diameters, the number of used pieces is not too large, so that the transition piece can be made of metal, the metal has high strength, and the manufacturing cost is not increased too much due to the limited number of pieces.
Specifically, as shown in fig. 2, the left and right sides of the tapered arc plate 31 are both provided with a connecting plate 313, the connecting plate 313 is provided with a connecting hole 314, and the connecting plates 313 of adjacent tapered arc plates 31 are closely attached to each other and connected to each other through a bolt inserted into the connecting hole 314. Namely, the adjacent conical arc plates 31 are realized by the connecting plates 313 arranged on the left side and the right side of the conical arc plates 31, and the connecting plates 313 can also enhance the strength of the conical arc plates 31 to ensure the safety.
Further, two ends of the connecting plate 313 are respectively connected with the two arc-shaped flange sections 311 at the upper and lower ends of the conical arc plate 31. After the connecting plates 313 of the adjacent conical arc plates 31 are tightly attached to each other, connection can be achieved, meanwhile, the two ends of each connecting plate are connected with the two arc-shaped flange sections 311, the connecting plates 313 can also serve as reinforcing ribs of the conical arc plates 31, and the strength of the whole transition connecting piece 3 is enhanced.
Specifically, the connecting plate 313 extends along a generatrix direction of the cylinder. The arc-shaped flange section 311 is perpendicular to the connection plate 313, and the connection plate 313 can bear a large part of pressure, so that the strength of the conical arc plate 31 and the transition piece 3 is further enhanced.
Preferably, the connecting plate 313 and the arc-shaped flange section 311 are both connected to the inner side of the conical arc plate 31. The connecting plate 313 and the arc-shaped flange section 311 are both connected to the inner side, the outer surface of the conical arc plate 31 is smooth, the wind resistance of the whole transition connecting piece 3 can be reduced, and the wind resistance of the tower is enhanced.
Preferably, the tapered arc plate 31, the arc flange section 311 and the connecting plate 313 are connected by welding or integrally cast. The welding connection strength is high, and the leakproofness is good. In fact, if the process allows, the whole tapered arc plate 31 can be integrally formed by using a casting process, so as to simplify the process.
Example two:
as shown in fig. 3 to 7, the invention further discloses a wind power tower, which comprises a foundation 1 and a plurality of straight cylinder sections, wherein the foundation 1 and the straight cylinder sections and/or two adjacent straight cylinder sections with different outer diameters are connected through a transition connecting piece 3 according to the first embodiment. The foundation 1 is generally directly connected with the straight cylinder section, but the transition connection of the transition connecting piece 3 is not required under some special conditions; the straight cylinder section is directly connected with the straight cylinder section with the same outer diameter, and the outer diameter is not simultaneously in transition connection by utilizing the matched transition connecting piece 3; due to the transition connecting piece 3, a wind power tower can be built by replacing a conical tower cylinder section with a large number of straight cylinder-shaped straight cylinder sections, the straight cylinder sections are simple in structure, the casting process requirement is low, and the casting difficulty of the tower cylinder sections is reduced; the straight cylinder section has lower requirements on the die, and the die has low manufacturing cost; the straight cylinder sections with the same outer diameter can be cast in batches by one set of die, so that the number of the dies is greatly reduced, and the cost of the dies is further reduced.
Further, the plurality of straight cylinder sections comprise a concrete straight cylinder section 21 made of concrete and a metal straight cylinder section 22 made of metal; a longitudinal channel which extends along the length direction of the concrete straight cylinder section 21 and is used for penetrating the prestressed cable 4 is arranged in the concrete straight cylinder section; both ends of the metal straight cylinder section 22 are flange surfaces. As shown in fig. 3, a metal straight cylinder section 22 is connected above the transition piece 3, and a concrete straight cylinder section 21 is connected below the transition piece 3, specifically, as shown in fig. 4, a flange surface at the end of the metal straight cylinder section 22 is aligned with an arc-shaped flange section 311 at the end of the transition piece 3 and is connected with the arc-shaped flange section by a bolt 5, so that the transition piece 3 is connected with the metal straight cylinder section 22; as shown in fig. 5, the longitudinal channel of the concrete straight-tube section 21 is aligned with the connection hole 312 on the arc-shaped flange section 311 at the end of the transition piece 3, and the prestressed cable 4 of the concrete straight-tube section 21 penetrates through the longitudinal channel and the connection hole 312 and is fastened at the other side of the arc-shaped flange section 311, so that the connection between the transition piece 3 and the concrete straight-tube section 21 is realized.
Of course, the splicing mode shown in fig. 3 is only an optional splicing mode, and when the wind power tower is built, as long as the wind power tower is fastened according to the above mode, the transition connecting piece 3 can be randomly spliced with the concrete straight cylinder section 21 and the metal straight cylinder section 22; for example, as shown in fig. 7, the foundation 1 is connected with a concrete straight-tube section 21, the concrete straight-tube section 21 is connected with a metal straight-tube section 22 through a transition connector 3, the metal straight-tube section 22 is connected with the concrete straight-tube section 21 through the transition connector 3, and the like. Namely, the concrete straight cylinder section 21 can be connected above the transition connecting piece 3, the metal straight cylinder section 22 can be connected below the transition connecting piece 3, or the concrete straight cylinder section 21 can be connected above and below the transition connecting piece 3, or the metal straight cylinder section 22 can be connected above and below the transition connecting piece 3. Even the metal straight cylinder section 22 and the concrete straight cylinder section 21, the metal straight cylinder section 22 and the metal straight cylinder section 22, and the concrete straight cylinder section 21 can be directly connected as long as the outer diameters of the two sections are the same; when the concrete straight cylinder section 21 is directly connected with the concrete straight cylinder section 21, the prestressed cable 4 sequentially penetrates through more than two continuous concrete straight cylinder sections 21, and then two ends of the prestressed cable 4 are fixed, so that fastening can be completed.
Further, the foundation 1 is connected with the concrete straight cylinder section 21, a prestressed cable 4 is fixedly connected in the foundation 1, and the prestressed cable 4 passes through the longitudinal channel and then is fastened at the joint of the concrete straight cylinder section 21 and the transition connecting piece 3 or the next straight cylinder section. As shown in fig. 6, the foundation 1 is connected with a concrete straight cylinder section 21, and the top of the concrete straight cylinder section 21 is connected with a transition connecting piece 3; the bottom end of the prestressed cable 4 is fixed in the foundation 1, the prestressed cable 4 penetrates through a longitudinal channel in the concrete straight cylinder section 21 and a flange at the bottom end of the transition connecting piece 3 and then is fastened at the top of the flange, so that the foundation 1, the concrete straight cylinder section 21 and the transition connecting piece 3 are fastened, the foundation is laid for the connection between the subsequent straight cylinder sections or the connection between the straight cylinder sections and the transition connecting piece 3 through bolts 5, and the stability of the whole wind power tower is ensured. The prestressed cables 4 are preferably provided in plurality in order to further enhance the stability of the entire wind power tower.
Preferably, the foundation 1 is a concrete structure. As shown in fig. 6, the foundation 1 made of concrete can conveniently fix the prestressed cable 4 therein, so as to ensure the strength and stability of the whole wind power tower.
For the concrete straight cylinder sections 21, the number of the concrete straight cylinder sections 21 is large, the casting process is simple, the casting cost by utilizing the concrete is low, and the construction cost of the whole wind power tower is reduced; the concrete casting site is not limited, the concrete can be cast on site to reduce the transportation cost, and the concrete can be transported to the site after being cast in advance. Compared with the concrete straight cylinder section 21, the metal straight cylinder section 22 has higher manufacturing cost, but can enhance the strength of the whole wind power tower, and in addition, the transition connecting piece 3 and the metal straight cylinder section 22 made of metal have longer service life, and can be detached after the concrete straight cylinder section 21 reaches the service life and then be continuously used on other wind power towers. The foundation 1 is of a concrete structure so as to conveniently fix the whole wind power tower and the prestressed cable 4.
The transition connecting piece 3 provided by the invention has the advantages that the circular truncated cone-shaped cylinder body is formed by detachably splicing a plurality of conical arc plates 31 which are distributed around the axis of the cylinder body and have the same height, and the upper end and the lower end of each conical arc plate 31 are respectively provided with the arc-shaped flange sections 311 with the connecting holes 312 so as to form a complete flange after splicing, so that the transportation and the storage are convenient; the arrangement of the connecting plate 313 not only realizes the connection of the adjacent conical arc plates 31, but also enhances the strength of the whole conical arc plate 31; the outer diameters of the upper end and the lower end of the barrel body obtained by splicing the conical arc plates 31 are different, so that transitional connection of tower barrel sections with different outer diameters can be realized, a large number of straight barrel-shaped tower barrel sections can be used for replacing the conical tower barrel sections during tower frame construction, and the casting difficulty and the mold cost of the tower barrel sections are greatly reduced. According to the wind power tower with the transition connecting piece 3, the foundation 1 and the straight cylinder sections and/or the adjacent two straight cylinder sections with different outer diameters are connected through the transition connecting piece 3, due to the transition connecting piece 3, a large number of straight cylinder sections made of concrete or metal can be used for replacing conical tower cylinder sections to build the wind power tower, the straight cylinder sections are simple in structure, the casting process requirement is low, and the casting difficulty of the tower cylinder sections is reduced; the straight cylinder section has lower requirements on the die, and the die has low manufacturing cost; the straight cylinder sections with the same outer diameter can be cast in batches by one set of die, so that the number of the die is greatly reduced, and the die cost is further reduced; the transition connecting piece 3 can be connected with the metal straight cylinder section 22 and also can be connected with the concrete straight cylinder section 21, and the concrete straight cylinder section 21 and the metal straight cylinder section 22 with the same outer diameter can also be directly connected, so that the whole wind power tower is assembled more flexibly, the quantity of the concrete straight cylinder section 21 and the metal straight cylinder section 22 can be flexibly controlled according to the construction requirement of the wind power tower, and the construction requirements of different heights and strength requirements can be met.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (6)
1. A transition connecting piece is characterized by being used for connecting two adjacent concrete straight cylinder sections and metal straight cylinder sections with different outer diameters, the transition connecting piece comprises a circular truncated cone-shaped cylinder body made of metal, the cylinder body is formed by splicing a plurality of conical arc plates (31) which are distributed around the axis of the cylinder body and have the same height, and the adjacent conical arc plates (31) are detachably connected; the upper and lower end of toper arc board (31) all is equipped with arc flange section (311) that has connecting hole (312) the left and right sides of toper arc board (31) all is equipped with connecting plate (313), be equipped with connecting hole (314) on connecting plate (313), it is adjacent connecting plate (313) of toper arc board (31) are hugged closely each other and are established through wearing to establish bolt interconnect in connecting hole (314), connecting plate (313), arc flange section (311) all weld the inboard of toper arc board (31).
2. The transition piece according to claim 1, characterized in that both ends of the connection plate (313) are connected to the two curved flange sections (311) at the upper and lower ends of the conical curved plate (31), respectively.
3. The transition piece according to claim 2, characterized in that the web (313) extends in the direction of a generatrix of the cylinder.
4. Wind tower comprising a foundation (1) and a plurality of straight sections, wherein the foundation (1) and the straight sections and/or two adjacent straight sections with different outer diameters are connected by a transition piece (3) according to any one of claims 1-3.
5. Wind tower according to claim 4 characterised in that said concrete straight section (21) is provided with a longitudinal channel extending along its length; both ends of the metal straight cylinder section (22) are flange surfaces.
6. Wind tower according to claim 5 characterised in that said foundation (1) is connected to said concrete right circular tube section (21), said foundation (1) being internally fixed with a prestressed cable (4), said prestressed cable (4) being fastened after passing through said longitudinal channel at the junction of said concrete right circular tube section (21) with said transition piece (3) or the next said right circular tube section.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201611145806.5A CN106762441B (en) | 2016-12-13 | 2016-12-13 | Transition connecting piece and wind power tower |
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| CN201611145806.5A CN106762441B (en) | 2016-12-13 | 2016-12-13 | Transition connecting piece and wind power tower |
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| CN106762441B true CN106762441B (en) | 2020-03-03 |
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| CN111608864A (en) * | 2020-06-28 | 2020-09-01 | 内蒙古金海新能源科技股份有限公司 | Guyed steel cylinder tower of wind generating set and steel cylinder replacing method |
| CN111946556B (en) * | 2020-07-29 | 2021-07-23 | 上海市机电设计研究院有限公司 | Construction positioning method for precast concrete shell ring |
| CN113941428B (en) * | 2021-10-26 | 2023-06-20 | 青岛建一混凝土有限公司 | Building waste recycling system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US8881485B2 (en) * | 2011-05-23 | 2014-11-11 | Iowa State University Research Foundation, Inc. | Wind turbine tower system |
| GB2507803B (en) * | 2012-11-12 | 2015-07-29 | Ship & Ocean Ind R & D Ct | An offshore installation method of a wind power generator and its fabrication segments |
| CN203420509U (en) * | 2013-07-25 | 2014-02-05 | 国家电网公司 | Insulating cross arm applied to power transmission line tower |
| EP2840259A1 (en) * | 2013-08-23 | 2015-02-25 | Alstom Renovables España, S.L. | Tower portion |
| CN103821677B (en) * | 2014-03-20 | 2016-07-20 | 哈尔滨工业大学（威海） | Prefabricated PC RPC wind power tower |
| CN203809220U (en) * | 2014-04-25 | 2014-09-03 | 湖南大学 | Wind driven generator tower |
| CN203924864U (en) * | 2014-06-26 | 2014-11-05 | 北京金风科创风电设备有限公司 | Concrete tower segment and concrete pylon |
| CN104121155B (en) * | 2014-07-10 | 2017-03-15 | 中国电建集团西北勘测设计研究院有限公司 | One kind can be assembled from vertical wind driven generator group prestressed concrete steel combination pylon and its anchoring process |
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