Method for manufacturing megawatt wind power generator blade root

A wind turbine and blade root technology, which is applied in the manufacture of megawatt-level wind turbine blade roots, can solve problems such as low production efficiency, glass cloth collapse, and wrinkling, and achieve simple and convenient production, simple mold manufacturing, and high efficiency. high effect

Inactive Publication Date: 2009-07-22
LIANYUNGANG ZHONGFU LIANZHONG COMPOSITES GRP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This leads to very low production efficiency. When the glass cloth is placed in the mold, it will cause the glass cloth on both sides of the blade mold to collapse and wrinkle.

Method used

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  • Method for manufacturing megawatt wind power generator blade root
  • Method for manufacturing megawatt wind power generator blade root

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Embodiment Construction

[0013] A method for manufacturing the blade root of a megawatt-level wind power generator. First, a separate plug-in die 1 is made. The inner diameter of the plug-in die is equal to the standard outer diameter of the blade minus the thickness of the glass cloth laid on the root of the blade mold. The size does not need to be Very precise. Lay the prefabricated glass cloth 2 in the blade design drawings in this female mold;

[0014] When laying, use spray glue to bond between two adjacent layers of glass cloth. Just glue. For every 6-8 layers, paste glass tape on the edge of the glass cloth at intervals, and fix it with both sides of the plug-in female mold to prevent the glass cloth from collapsing.

[0015] After the laying is complete, lay a vacuum bag 3 on the outermost layer, seal the surroundings, vacuumize (the negative pressure reaches -0.1MPa), compact all the layers, and put a glass fiber reinforced plastic arc support plate 7 on the vacuum bag 3, The both sides of...

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Abstract

The invention relates to a method for making a blade root of a megawatts level aerogenerator, which comprises the following steps: firstly, making a single insert female die, and laying a glass cloth required to be prefabricated according to blade design paper in the female die; secondly, laying a vacuum bag on the outermost layer, sealing the periphery, vacuumizing, compacting all the laid layers, placing a glass reinforced plastics cambered supporting plate on the vacuum bag, supporting two sides of the cambered supporting plate with transverse supporting rods, and stopping vacuumizing; and thirdly, laying a plurality layers of glass fiber cloth in a blade root mould in advance, lifting up an insert and placing the insert into the blade root mould, sealing the peripheries of the vacuum bag and the blade root mould, vacuumizing again, injecting glue, and finally curing and moulding the product. The method overcomes the collapse and the corrugation of the glass cloth on two sides of the blade mould, has the advantages of simple and convenient production, high efficiency, and easily manufactured insert, does not generate a gap because of the good matching of the shapes of the glass cloth laid in the insert and the blade mould, and avoids the easy generation of a dried region in the glass cloth under a cured insert.

Description

technical field [0001] The invention relates to a large-scale wind power generation equipment, in particular to a method for manufacturing the blade root of a megawatt-level wind power generator. Background technique [0002] The roots of wind turbine blades are made of more than 100 layers of glass fiber cloth. The easiest way is to lay these glass cloths into the mold layer by layer during manufacturing, then vacuumize, inject glue, and finally cure and shape. This leads to very low production efficiency. When the glass cloth is placed in the mold, it will cause the glass cloth on both sides of the blade mold to collapse and wrinkle. Contents of the invention [0003] The technical problem to be solved by the present invention is to propose a simple, convenient and high-efficiency manufacturing method for the blade root of a megawatt-level wind power generator aimed at the deficiencies of the prior art. [0004] The technical problem to be solved by the present inventi...

Claims

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Application Information

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IPC IPC(8): B29C70/34B29C70/54B29K309/08B29L31/08
Inventor 黄辉秀乔小亮
Owner LIANYUNGANG ZHONGFU LIANZHONG COMPOSITES GRP
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