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Flexible wind blade root bulkhead flange

A blade root, flexible technology, used in the field of wind turbines

Active Publication Date: 2013-12-11
GENERAL ELECTRIC CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In yet another system, the bulkheads and connections to the blade walls are reinforced in an attempt to resist high loads and prevent ovalization, but this involves expensive material additions and risk of joint failure

Method used

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  • Flexible wind blade root bulkhead flange
  • Flexible wind blade root bulkhead flange
  • Flexible wind blade root bulkhead flange

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] figure 1 Shown is a wind turbine 100 with housing for a generator (in figure 1 Not shown in the figure) the nacelle 102. The nacelle 102 is an enclosure mounted on top of a tower 104, with only figure 1 A part of it is shown in . The height of the tower 104 is selected based on factors and conditions known in the art, and may extend to heights of up to 60 meters or more. Wind turbine 100 may be installed on any terrain that provides an area with desirable wind conditions. Terrain can vary considerably and can include, but is not limited to, mountainous or coastal locations. Wind turbine 100 also includes a rotor 106 including one or more rotor blades 108 attached to a rotating hub 110 . although figure 1 While the illustrated wind turbine 100 includes three rotor blades 108 , there is no particular limitation on the number of rotor blades 108 required by the present disclosure.

[0025] figure 2 A turbine blade 108 is shown having a leading edge 201 and a t...

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PUM

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Abstract

A flexible flange (300) for a blade root wall (302) allows movement of the blade root (209) toward and away from the bulkhead (304). The flexible flange provides flexibility and support for the blade wall and also provides a sealant, thereby protecting the machinery in the hub (110). The flexible flange has a top portion (306) configured to be secured to a blade root wall, a bottom portion (310) configured to be secured to a bulkhead (304) and an angled portion (308) configured to offset the top portion from the bottom portion, a gap (312) being between the blade root wall and the bottom portion to allow for movement of the blade root wall toward and away from the bulkhead.

Description

Technical field [0001] The invention is generally involved in wind turbine.More specifically, the present invention is a flexible baldness (Flange) for stress release for the roots of the wind paddle. Background technique [0002] Recently, wind turbines have attracted more and more attention as an environmental safety and relatively cheap alternative energy.With this increasing attention, a lot of work has been made to develop reliable and effective wind turbines. [0003] Generally speaking, wind turbines include rotor with multiple paddles.The rotor is installed on the shell or cabin, and the shell or cabin is located on the top of the truss or tube tower.Public business -level wind turbine (that is, the wind turbine designed to provide electricity to the public grid) can have a large rotor (for example, a length of 30 meters or longer).In addition, wind turbine is usually installed on a tower at least 60 meters high.The paddle leaves on these rotations transform the wind ener...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F03D1/06
CPCF05B2280/4003F05B2260/96F05B2280/5001F05C2225/00F03D1/0658Y02E10/721F05C2251/02F05B2250/70Y02E10/72
Inventor E·M·雅各布森
Owner GENERAL ELECTRIC CO