The quality of the fan blades must meet the needs of use

       Human society has entered the 21st century. In the past two centuries, the large-scale use of fossil energy and the widespread use of renewable energy have caused environmental problems. Large-scale grid-connected horizontal axis wind turbines are the main form of wind energy utilization. Next Xiaobian will take youTo understand the quality of the fan blades to meet the use.

       The fan blade is installed on the outer circumference between the large chord length of the blade body and the blade root, and the additional shell is a complete airfoil, which optimizes the aerodynamic performance of the blade, improves the aerodynamic efficiency of the blade, and overcomes the poor aerodynamic performance of the blade. shortcoming. The aerodynamic shape design of the blade includes: chord length distribution, torsion angle distribution, pre-bending distribution (blade pre-bending design), and the constraints of blade root structure design ignore the aerodynamic performance, so that the actual designed blade chord length is very different from the design value. . Wind turbine generally includes: wind capture device, energy conversion device, support device and control system. The wind turbine blade acts as the wind capture device of the wind turbine and plays the role of absorbing wind energy. The shape of the blade determines the conversion efficiency of wind energy. The design of the blade Quality directly determines the performance and reliability of wind turbines.