On the vast Gobi Desert, three giant "wind wings" that are over 80 meters long are lying quietly, waiting for a thrilling aerial journey. These wind turbine blades have beautiful curves like swan wings, but due to their large size and special materials, every lifting becomes a severe test of engineering technology.
Modern wind turbine blades can be regarded as the crystallization of composite material art. The streamlined body made of glass fiber reinforced epoxy resin is filled with light and high-strength Basha wood or PVC foam, which not only ensures the structural strength, but also achieves amazing lightweight. Faced with this challenge, engineers have innovatively adopted flexible lifting solutions. The lifting belt made of high-strength polyester fiber is not inferior in strength to steel cables but more resilient. Combined with the lifting system composed of shackles, it firmly supports the blades.
During the lifting process, the 500 ton all ground crane extends its steel arms and slowly lifts the blades off the ground. The ground commander holds a anemometer for real-time monitoring and immediately suspends operations when the wind speed exceeds 8m/s. Technicians monitor the stress state of the structure at all times through strain sensors installed on the blades. With the issuance of the "up" command, the blades climb steadily at a speed of no more than 3 meters per minute, and complete precise docking at a hub height of 120 meters above the ground. The entire process often takes 4-6 hours.
When the last blade bolt is finally tightened, these "wind wings" lying on the earth will finally begin their journey of rotation. The hoisting wisdom behind it is a vivid footnote to humanity's mastery of clean energy, witnessing the technological ascent of the green energy era.