The wind turbine blade is a thin-shell structure made of composite materials. The structure is divided into three parts: root, shell and keel. There are many types, including pointed head, flat head, hook head, pointed head with flaps, etc. The manufacturing process mainly includes male mold → female mold turning → layering → heating and curing → demolding → surface polishing → spray painting, etc. Design challenges include aerodynamic design of blade shape, strength, fatigue, noise design, and composite material layup design. The technical difficulties mainly include mold positive processing, mold recasting and resin system selection. The blade is a large composite material structure, and more than 90% of its weight is composed of composite materials. Each generatorr generally has three blades. A single blade of a 1.5 MW generator uses up to 6 tonnes of composite materials, while a wind turbine. Turbine blades over 3 MW use composite materials. The weight of a single unit is more than 10 tons.
A 60 m wind turbine blade weighs three tonnes. A friend of mine drives a cart, and they often use carts to pull 200-foot wind blades. Once they encountered a large bumper along the way, they drove the car to the floor pump and weighed it. The result showed that it weighed three tons. Everyone knows that 60 m wind blades are part of the three piles. I saw someone ask this question here, so I'll answer it here anyway.
“The most difficult part of transporting wind energy equipment is transporting the wind turbine blades. The blades are 50 to 60 meters long and weigh around 12 tonnes each. SOn this winding mountain road, it's really difficult. for transport workers. This is a huge challenge, which is why we use special vehicles such as blade forklifts to transport wind turbine blades, which can adjust the blades according to road conditions. "
Recently, at Dongfang Electric Dechang County Wind Power Company Liangshan) Co., Ltd., met the transport truck that was loading wind turbine blades and was about to Seeing that the wind blades that had been loaded on the vehicle could actually rotate and adjust their direction, Zhang Yong from the General Management Department Office answered the reporter's questions.