Leading edge protection of a wind turbine blade

A wind turbine blade and leading edge technology is applied in the field of preparing wind turbine blades with leading edge protection, which can solve the problems of wet inclusions, air inclusions, weakened coating strength and corrosion resistance, etc., so as to improve corrosion resistance. Effect

Active Publication Date: 2019-03-15
VESTAS WIND SYST AS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the coating should only be applied in thin coats to prevent laundering
Also, there are problems with air inclusions, moisture inclusions when painting medium in the field
The desired coating thickness can then be established by applying multiple thinner layers, which is labor intensive and time consuming
It is further seen that the interface between the coatings weakens the strength and corrosion resistance of the overall coating compared to a single layer coating of the same thickness

Method used

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  • Leading edge protection of a wind turbine blade
  • Leading edge protection of a wind turbine blade
  • Leading edge protection of a wind turbine blade

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0042] figure 1 A wind turbine 100 is shown, which includes a tower 101, a nacelle 102 on top of the tower, and nacelle housing machine parts such as gearboxes, generators (not shown), and the like. At one end of the nacelle, the hub portion 103 supports a plurality of wind turbine blades 110.

[0043] figure 2 A wind turbine blade 110 is shown, which extends a length 201 between the root end 202 and the tip end 203 of the blade and a width between the trailing edge 205 and the leading edge 206 as indicated by the arrow 204. The outer surface portion 210 of the wind turbine blade covers a part of the leading edge 206 and is provided with leading edge protection according to the present invention.

[0044] image 3 A part of the wind turbine blade 101 seen in the cross-sectional view is shown, and this part corresponds to figure 2 The outline 300 shown in. The outer surface portion or outer surface portion 210 of the blade covers and extends over the leading edge 206 of the blade...

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PUM

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Abstract

The invention relates to a method of preparing a wind turbine blade with a leading edge protection. The method includes applying a first layer of paint on the surface portion comprising the part of the leading edge to be protected, applying a layer of a fibrous material on top of the first layer of paint, applying a second layer of paint on the layer of fibrous material, and allowing the applied leading edge protection to cure. The method may be performed as a part of the manufacture of the blade and / or as a post-processing step for example during repair on site. The proposed method results inan increased erosion resistance and improved protection against impacting particles. The invention further relates to a wind turbine blade comprising a leading edge protection established as mentioned above.

Description

Technical field [0001] The invention relates to a method for preparing a wind turbine blade with leading edge protection. The invention also relates to a wind turbine blade including a leading edge protection. Background technique [0002] Modern wind turbines continue to increase in size and are equipped with longer and longer wind turbine blades to increase power production. As the blade becomes longer, the velocity of particles impacting the blade surface increases accordingly. Rain, hail, salt spray and other debris particles impact the blade surface at a speed of up to 400km / h or even higher, which may cause severe erosion and damage. In particular, the leading edge of the wind turbine, especially the outermost part of the wind turbine blade closest to the tip, is eroded. If the wind turbine blades are not fully protected or the protective devices are worn, the blades will experience pitting, gouging and delamination over time, which will significantly affect the aerodyna...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D1/06F03D80/50
CPCF03D1/0675F05B2230/31F05B2230/90F05B2280/6011F03D80/50Y02E10/72Y02P70/50
Inventor W·鲁特尔C·梅尔德嘉德B·B·达姆嘉德
Owner VESTAS WIND SYST AS
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