Wind power blade manufacturing method

Abstract

The invention discloses a wind power blade manufacturing method, and relates to the technical fields of large wind power blade design and manufacture. The wind power blade manufacturing method comprises the steps that all shell laying materials except skin are prefabricated in a regional mode, then outer skin is laid on a shell main mold, a shell prefabricated member is arranged, inner skin is laid, a flow guiding auxiliary material and a vacuum bag film are laid to build a vacuum system, overall pouring is conducted, and then the shell technology defects are greatly reduced. The wind power blade manufacturing method has the beneficial effects that the shell laying quality is improved, the shell pouring difficulty is reduced, the technology defects such as laying wrinkles and bad pouring of a shell structure are reduced, the probability that shell half piece scrap is caused by the local defects of blades is decreased, and the mold occupation time of local blade maintenance is shortened.

Description

technical field [0001] The invention belongs to the technical field of designing and manufacturing large-scale wind power blades, and in particular relates to a method for manufacturing wind power blades. Background technique [0002] Wind turbine blades are one of the key components of wind turbines. With the increase in the power of wind turbines and the diameter of wind rotors, the length of wind turbine blades is getting longer and heavier, and at the same time, there are process defects in the production process of large wind turbine blades. more likely. [0003] At present, the usual production method of wind power blades is to firstly manufacture two shell halves by vacuum infusion integral molding: the main girder prefabricated part is produced on the main girder mold, the root prefabricated part including part of the root ply is made on the root mould, and then The rear edge UD prefabricated part is made on the edge UD mold, and then most of the remaining fiber fab...

AI Technical Summary

Problems solved by technology

[0004] However, the airfoil of the large-scale wind turbine blade shell changes complicatedly, and it is difficult to extend the glass fiber fabric in the length direction and radial direction of the blade at the same time. The infusion method for infusing large blades requires high rationality and accuracy in the laying of the diversion auxiliary medium. At the same time, the infusion effect of the blade shell is greatly affected by the resin temperature, ambient temperature, pressure, humidity, and switch pipeline time during the infusion process. , during the infusion process, problems such as dry yarn, semi-dry yarn, and unbalanced fiber resin content are more likely to occur

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