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Tower for a wind turbine, prefabricated metal wall part for use in tower for a wind turbine and method for constructing a tower for a wind turbine

A technology for wind turbines, metal walls, applied in the field of towers for wind turbines, prefabricated metal wall parts used in towers for wind turbines, and the construction of towers for wind turbines, which can solve the problem that concrete towers are not an economical solution

Inactive Publication Date: 2007-02-21
CORUS STAAL BV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Also, concrete towers are not an economical solution

Method used

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  • Tower for a wind turbine, prefabricated metal wall part for use in tower for a wind turbine and method for constructing a tower for a wind turbine
  • Tower for a wind turbine, prefabricated metal wall part for use in tower for a wind turbine and method for constructing a tower for a wind turbine
  • Tower for a wind turbine, prefabricated metal wall part for use in tower for a wind turbine and method for constructing a tower for a wind turbine

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Experimental program
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Embodiment Construction

[0038] figure 1 A wind turbine 1 is schematically shown in . The wind turbine 1 comprises a generator 2, a rotor 3 and a tower 4 on which the combination of generator and rotor is mounted. The tower 4 has an outer surface forming the outside of the tower 4 and an inner surface forming the inside of the tower. The tower consists of four tower sections 4a-4d. The wind turbine is arranged on a foundation 19 .

[0039] In Fig. 2 a tower 4 for a wind turbine according to prior art is shown. The tower segments 4a, 4b, 4c, 4d are mounted on top of each other. These tower sections are fabricated off site and connected by horizontal flanges and large bolts and nuts. These flanges are indicated by thick horizontal lines between the tower segments. The tower sections are made of curved plates, which are welded together horizontally and vertically. These welds, indicated by dashed lines, are known to be a possible source of fatigue fracture, especially horizontal welds. For a towe...

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Abstract

The invention relates to a tower for a wind turbine wherein the tower has an exterior side and an interior side and wherein the tower is at least partly composed of prefabricated metal wall parts characterised in that each wall part comprises an essentially quadrangular portion having an outwardly facing surface in the direction of the exterior of the tower and an inwardly facing surface in the direction of the interior of the tower, said portion having a top edge, a bottom edge, a first side edge and a second side edge, wherein the first side edge is provided with a first flange along at least part of the length of the first side edge and wherein the second side edge is provided with a second flange along at least part of the length of the second side edge.

Description

technical field [0001] The invention relates to a tower for a wind turbine, having an outer side and an inner side, the tower being formed at least partially from prefabricated metal wall parts. The invention also relates to prefabricated metal wall sections for use in towers of wind turbines. The invention further relates to a method of constructing a tower of a wind turbine, the tower having an outer side and an inner side, and wherein the tower is at least partly constructed of prefabricated metal wall sections. Background technique [0002] A current trend in the wind turbine market is to increase the kinetic energy of the wind turbine by increasing the tower height. A larger wind turbine means an increase in size, weight and loads acting on the wind turbine tower. This requires the tower to be stronger and stiffer and thus results in larger tower dimensions. [0003] Traditional tubular steel towers for 2 megawatt (MW) and larger wind turbines require very large towe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04H12/08F03D11/04F03D1/00
CPCE04H12/085F05B2230/60F05B2240/912Y02E10/728F03D13/10Y02P70/50Y02E10/72
Inventor H·斯波特尔
Owner CORUS STAAL BV
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