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A method of craneless mounting or demounting of a wind turbine blade

A technology of wind turbines, blades, applied in the field of wind turbine facilities, which can solve the problems of not providing wind turbine blades, moving to horizontal position solutions, etc.

Inactive Publication Date: 2012-11-14
LM GLASSFIBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this document does not provide a solution on how to move the wind turbine blades from a vertical to a horizontal position

Method used

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  • A method of craneless mounting or demounting of a wind turbine blade
  • A method of craneless mounting or demounting of a wind turbine blade
  • A method of craneless mounting or demounting of a wind turbine blade

Examples

Experimental program
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Effect test

Embodiment Construction

[0043] figure 1 Illustrating a conventional modern horizontal axis wind turbine, preferably in an upwind configuration (ie runner), according to the so-called "Danish concept", with a tower 4, a nacelle 6 and a rotor, The rotor has a substantially horizontal rotor shaft. The rotor comprises a hub 8 and three blades 10 extending radially from the hub 8 , each blade having a blade root 16 closest to the hub and a blade tip 14 farthest from the hub 8 .

[0044] During operation of a wind turbine, damage to the blades of the wind turbine may occur, eg, from lightning strikes, hail, 100-year storms, and the like. In such situations, the damaged wind turbine blade is replaced in order to keep the downtime of the wind turbine as short as possible. The following description relates to a method of dismantling a wind turbine blade of a wind turbine. In the installation method, these steps may be performed in reverse.

[0045] The rotor of the wind turbine is brought into a position...

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PUM

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Abstract

A method of craneless mounting or demounting of a wind turbine blade of a wind turbine is presented. The wind turbine includes a tower on top of which a machine housing is arranged, the machine housing comprising a hub from which a number of wind turbine blades extend substantially radially, and wherein the wind turbine blade comprises a root end and a tip end.; The method comprising the steps of : a) attaching a first cable via a first attachment means to the wind turbine blade at a first longitudinal position of the blade, b) attaching the first cable to a first upper loading means arranged at the machine housing, c) arranging an intermediate cable guiding means between the first attachment means and the first upper loading means at a first distance from the first attachment means, d) attaching a second cable via a second attachment means to the wind turbine blade at a second longitudinal position of the blade, and e) attaching the second cable to the intermediate cable guiding means at a second distance from the second attachment means.; The method further comprises the step of moving the blade between a horizontal position and a vertical position by: f) varying a length of the first cable and / or varying a length of the second cable so that the first distance (11) and / or the second distance (12) are varied.

Description

technical field [0001] The invention relates to a method of craneless mounting or dismantling of a wind turbine blade of a wind turbine. The invention also relates to a device for mounting or demounting a wind turbine blade of a wind turbine and a wind turbine installation comprising such a device. [0002] During operation of a wind turbine, damage to the blades of the wind turbine may occur, eg, from lightning strikes, hail, 100-year storms, and the like. In such situations, the damaged wind turbine blade is replaced in order to keep the downtime of the wind turbine as short as possible. Background technique [0003] It is known to use a crane to assemble or disassemble wind turbine blades of a wind turbine. The damaged wind turbine blade is arranged in a horizontal position or a vertical position, after which the root flange of the wind turbine blade is separated from the flange of the rotor hub of the wind turbine. The damaged wind turbine blade may then be lowered on...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D1/00F03D11/04
CPCF05B2240/916F03D11/04Y02E10/728F03D1/001F03D1/0658F03D13/10F03D80/50Y02E10/72
Inventor U.奥库坦
Owner LM GLASSFIBER
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