Large tail-edge sectional wind turbine blade connecting structure and manufacturing process thereof

Abstract

The invention provides a large tail-edge sectional wind turbine blade connecting structure and a manufacturing process thereof and relates to a large wind turbine blade. The manufacturing process is mainly used for solving the problem that the tail edge of a product manufactured by a traditional process is easy to crack. The connecting structure comprises a blade main body part and a blade tail edge part, wherein the blade main body part is provided with a blade main body gluing edge, the blade tail edge part is provided with blade tail edge gluing edges, and the two blade tail edge gluing edges and the blade main body gluing edge are glued through an adhesive and fixed through bolts. A side-controllable gluing process and a bolt-based fixing method are adopted to connect the tail edges, so that the disassembly and assembly convenience of blade sections are improved on the basis of ensuring the blade structure stability.

Description

technical field [0001] The invention relates to a blade of a large fan, in particular to a connection structure and a manufacturing process of a blade of a large trailing edge segmented wind turbine. Background technique [0002] my country is a country with large wind resources, and more than 50% of the wind resources on land are classified as "low wind speed areas", with wind speeds ranging from 5 to 7 meters per second. As the core component of wind energy capture, the blade has a good structural design and stable process production design is the key to ensure its quality. Larger and longer blades can better capture wind energy. [0003] At present, in the mold-closing process of large-scale wind turbine blades, the bonding of the trailing edge area has always been a blind area of ​​quality control. Due to the limitation of geometric shape and space, it is not convenient for construction and monitoring. The traditional blade trailing edge adopts upper and lower molds. T...

AI Technical Summary

Problems solved by technology

[0003] At present, in the mold-closing process of large-scale wind turbine blades, the bonding of the trailing edge area has always been a blind area of ​​quality control. Due to the geometric shape and space constraints, it is not convenient for construction and monitoring. The traditional blade trailing edge adopts upper and lower molds. Therefore, the cracking of the trailing edge of wind turbine blades during operation has become one of the main reasons affecting the normal operation and power generation of wind turbines. Once the trailing edge cracks, the owner will face the risk of replacing the entire blade, which is bound to increase O&M cost

Images