Method of wind turbine blade infusion

By laying continuous felt and air extraction components in the blunt trailing edge area of ​​wind turbine blades and adopting a double-sided injection method, the problems of long injection time and large resin consumption of single-sided injection are solved, realizing a fast and efficient injection process and improving the manufacturing efficiency and quality of wind turbine blades.

CN117484914BActive Publication Date: 2026-06-09SINOMA TECH (YIWU) WIND POWER BLADE CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SINOMA TECH (YIWU) WIND POWER BLADE CO LTD
Filing Date
2023-10-31
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

The existing technology for injecting the blunt trailing edge of wind turbine blades is a single-sided injection method, which results in long injection time, large resin consumption, and insufficient vacuum power.

Method used

The bilateral injection method is adopted. By laying a continuous felt and a vacuum pumping assembly in the blunt tail edge region, vacuum injection technology is used to inject simultaneously through two flow channels to ensure that air bubbles are discharged, thus achieving bilateral injection in the blunt tail edge region.

Benefits of technology

It shortened the grouting time, reduced the amount of resin used, improved grouting efficiency, solved the problem of insufficient vacuum power for large-blade blades, and improved grouting efficiency and quality.

✦ Generated by Eureka AI based on patent content.

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    Figure CN117484914B_ABST
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Abstract

The application discloses a wind power blade pouring method. The wind power blade comprises a blunt trailing edge, the blunt trailing edge comprises a large surface area, a vertical surface area and a corner area, the corner area is located between the large surface area and the vertical surface area, the large surface area is axially parallel to the wind power blade; the corner area is paved with a continuous felt, the large surface area is paved with a first flow channel, the vertical surface area is paved with a second flow channel, and the first flow channel and the second flow channel are both provided with openings; an air extraction assembly is arranged above the continuous felt, and at least one air extraction port is arranged on the air extraction assembly. The method is based on the continuous felt and the air extraction assembly paved in the blunt trailing edge area, simultaneously poured through two flow channels respectively, and can ensure that the air bubbles in the blunt trailing edge area are discharged when simultaneously poured. According to the embodiment of the application, bilateral pouring of the blunt trailing edge area can be realized, and the pouring time and the resin consumption are reduced.
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