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Belt of rotor blade of wind power plant

A technology for wind rotor blades and wind energy equipment, which is applied to the belt field of wind rotor blades, can solve the problems of expensive belts, and it takes a lot of time to manufacture the main belt, and achieves the effect of avoiding the problem of delamination.

Inactive Publication Date: 2011-06-08
REPOWER SYST AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The use of such a fiber-reinforced single layer has the disadvantage on the one hand that it takes a lot of time to manufacture the main belt
On the other hand, especially for belts made of carbon fibers or carbon fiber rovings, there is the following disadvantage: Such belts are very expensive

Method used

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  • Belt of rotor blade of wind power plant
  • Belt of rotor blade of wind power plant
  • Belt of rotor blade of wind power plant

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Embodiment Construction

[0030] In the following drawings, the same or similar components or corresponding parts are always marked with the same reference numerals, so corresponding repeated explanations are omitted.

[0031] figure 1 A rotor blade 10 of a wind energy installation is shown schematically. The rotor blade 10 extends along its longitudinal extension 11 from the rotor blade root 12 to the rotor blade tip 13 . In the aerodynamic area 14 there is a cross-sectional structure (Querschnittsprofile) 15 which extends from a structural leading edge 16 (flange) to a structural trailing edge 17 , wherein the structural leading edge 16 and the structural trailing edge 17 make the rotor blade The suction side 18 and the pressure side 19 of 10 are separated from each other.

[0032] In order to stabilize the rotor blade 10, a belt 20 is provided, which absorbs most of the forces acting on the rotor blade. The band 20 extends substantially from the rotor blade root 12 to the rotor blade tip 13 . Th...

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Abstract

The present invention relates to a belt (20) of a rotor blade (10) of a wind power plant, including a plurality of fiber-reinforced individual layers which are interconnected by a resin. The belt is characterized in that at least one fiber-reinforced individual layer of the belt has a longitudinal stiffness of more than 50,000 N / mm with a thickness of more than 0.9 mm.

Description

technical field [0001] The invention relates to a belt (gurt) for a rotor blade of a wind energy installation, comprising a plurality of fiber-reinforced individual layers connected to one another by resin. Background technique [0002] The main strip in the rotor blade of a wind energy installation consists of a plurality of individual layers in order to achieve, in particular, the longitudinal rigidity necessary for the rotor blade. The required longitudinal stiffness results from the loads acting on the rotor blade, for example from the parameter of the wind tower passage, ie the distance of the top of the rotor blade from the outer wall of the wind tower. Depending on the size of the rotor blades, different numbers of layers are laid. Thus for example 90 layers of glass fiber reinforcement are used when the rotor blade is 50 m long. When constructing the main strips of wind rotor blades, fiber-reinforced single layers are usually used, these single layers have reinforc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/12F03D11/00
CPCF05B2230/50B29L2031/085Y02E10/72F05C2253/04Y02E10/721F03D1/065B29C70/226F05B2280/6003Y10T428/269Y10T428/24132Y10T428/24967Y10T428/195Y02P70/50F03D1/0675
Inventor U 本德尔
Owner REPOWER SYST AG
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