Pre-curing perfusion method for wind power blade without flow guide net

A wind turbine blade and pre-curing technology, which is applied to other household appliances, household appliances, household components, etc., can solve the problems that are not conducive to the penetration of perfusion resin, prolong the production cycle of blades, increase the use of diversion nets, etc., so as to shorten the layer laying. time, enhance market competitiveness, and improve the effect of quality

Active Publication Date: 2019-05-31
SINOMATECH JIUQUAN WIND POWER BLADE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This slotting method is not conducive to the permeation of the perfusion resin. It increases the amount of perfusion resin while in

Method used

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  • Pre-curing perfusion method for wind power blade without flow guide net

Examples

Experimental program
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Effect test

Example Embodiment

[0023] Example 1: Production of pre-cured perfusion of a megawatt wind power blade with a length of 59.50 m

[0024] (1) Mold cleaning: clean the surface of the mold, use a film cleaner to remove oil and stains, take a clean degreasing gauze of 0.8m—1.5m in length and knead it into a ball, moisten it with a release agent, and leave it at the front and back edges of the mold cavity In the area of ​​300mm inner edge, the release agent is evenly spread on the surface of the mold in a spiral loop.

[0025] (2) Laying the release cloth: After the release agent is applied, place the release cloth from the root to the tip of the blade, turn 20mm out of the parting surface when laying, and leave the rest in the mold cavity to confirm After the release cloth is smooth without wrinkles, it is fixed by spraying glue.

[0026] (3) Laying the outer skin cloth layer: Lay five layers of outer skin cloth in turn, the laying direction of each layer is from the root to the tip of the leaf, and sprayi...

Example Embodiment

[0031] Example 2: Production of pre-cured perfusion of megawatt wind turbine blades with a length of 42.20 m

[0032] (1) Mold cleaning: clean the surface of the mold, use a film cleaner to remove oil and stains, take a clean degreasing gauze of 0.8m—1.5m in length and knead it into a ball, moisten it with a release agent, and leave it at the front and back edges of the mold cavity In the area of ​​300mm inner edge, the release agent is evenly spread on the surface of the mold in a spiral loop.

[0033] (2) Laying the release cloth: After the release agent is applied, place the release cloth from the root to the tip of the blade, turn 20mm out of the parting surface when laying, and leave the rest in the mold cavity to confirm After the release cloth is smooth without wrinkles, it is fixed by spraying glue.

[0034] (3) Laying the outer skin cloth layer: Lay five layers of outer skin cloth in turn, the laying direction of each layer is from the root to the tip of the leaf, and spray...

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Abstract

The invention discloses a pre-curing perfusion method for a wind power blade without a flow guide net. The pre-curing perfusion method for the wind power blade without the flow guide net comprises seven steps of cleaning a mould, laying the demoulding cloth, laying the outer skin cloth layer, beam mounting, laying core materials, laying the inner skin, laying other auxiliary materials, and filling. According to the pre-curing perfusion method for the wind power blade without the flow guide net, PVC core material with chordwise linear grooves with the width and the depth of 2.0 mm and the spacing of 20+/-2 mm arranged on the outer surface chordwise or light wood core materials with chordwise linear grooves with the width of 1.2 mm, the depth of 1.5 mm and the spacing of 20+/-2 mm arranged on the outer surface chordwise are adopted, so that when pouring, resin is directly poured into the linear grooves, the permeability of the poured resin is obviously improved, and the poured resin consumption is reduced. The flow guide net is not needed to be laid in the grooved area of the core materials. During pouring, the resin is directly poured into the core material grooves, which can significantly improve the moving speed of the poured resin, significantly reduce the consumption of the auxiliary materials, further effectively reduce the production cost, shorten the production cycle of the wind power blade, and improve the production efficiency and economic benefits.

Description

technical field [0001] The invention relates to the technical field of wind power blade production, in particular to a method for pre-curing and perfusing a wind power blade without a diversion net. Background technique [0002] Pre-curing infusion is one of the important processes in the production process of existing wind power blades. Due to the thick cloth layer and core material, it is difficult for the infusion resin to penetrate, so it is often adopted to lay a diversion net on the upper surface of the inner skin to achieve a vacuum environment. The under-infusion resin flows quickly, so as to obtain the best infusion effect, but the addition of the guide net greatly increases the production cost of the wind power blade. [0003] The commonly used core material of existing wind power blades is PVC or balsa wood. However, the unreasonable groove method of PVC and balsa core material is an important factor that leads to the increase of the amount of diversion net. At p...

Claims

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Application Information

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IPC IPC(8): B29C70/84B29L31/08
Inventor 彭晓娟苏振儒刘博昌邓富帖振荣方淑娜
Owner SINOMATECH JIUQUAN WIND POWER BLADE CO LTD
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