Wind generating set blade inner reinforcing preparation method and wind generating set blade

Abstract

The invention provides a wind generating set blade inner reinforcing preparation method and a wind generating set blade. The wind generating set blade inner reinforcing preparation method comprises the following steps: laying a first vacuum film on a mold; paving a material for forming an blade inner reinforcing on the first vacuum film; laying a second vacuum film on the material for forming theblade inner reinforcing; sealing the second vacuum film on the mold; vacuumizing for the first time to form a first prefabricated part; attaching the first prefabricated part to the inner surface of ablade to be reinforced, wherein the second vacuum film is located between the blade to be reinforced and the first prefabricated part; removing the second vacuum film; sealing the first vacuum film on the inner surface; vacuumizing for the second time; pouring resin into the material for forming the blade inner reinforcing by adopting a vacuum pouring method, and heating and curing to form the blade inner reinforcing. The preparation method disclosed by the invention has the advantages of ensuring the product quality, improving the production efficiency and the like.

Description

technical field [0001] The invention relates to the technical field of wind power generation, and more specifically, to a preparation method for internal reinforcement of a blade of a wind power generating set capable of pre-laying operation and the blade of a wind power generating set. Background technique [0002] At present, in the production process of wind turbine blades, hand lay-up process, hand lay-up vacuum bag pressing process or vacuum infusion process are generally used to prepare the inner reinforcement of the leading or trailing edge of wind turbine blades. [0003] The hand lay-up process and the hand lay-up vacuum bag pressing process have defects such as whitening of the front and rear edges of the blade, many burrs, and wrinkles; the vacuum infusion process generally uses hand-lay-up resin for vacuum infusion, and there are many infusion defects, and there are infusion auxiliary components. Defects such as indentation, folds, and local rich resin left by th...

AI Technical Summary

Problems solved by technology

The vacuum infusion process also has problems such as taking up a long time for the mold, and it is difficult for workers to lay glass fiber cloth and seal the vacuum and maintain pressure, which leads to a long time-consuming operation process and extremely low production efficiency; the air leakage rate of the vacuum system is very high. , the repair rate of the product is also very high

[0004] Moreover, post-curing is required after the internal reinforcement process of the above-mentioned three types of wind turbine blades is completed, and the post-curing is generally heated by the blade shell mold, and the use of shell mold heating has the following problems: the curing method is inconvenient, and the curing temperature is not high. Good control, very low heating efficiency, the whole heating process takes a long time, high energy consumption, low production efficiency, etc.

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