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汽轮机静叶采用非径向的倾斜安装,可以避免或极大地降低由于汽流激振力引起的动叶振动,减小动片的动应力.初步研究表明,静叶倾斜角以20～25°为佳.这一有效的结构改进措施值得重视.
The non-radial inclined installation of steam turbine stator vanes can avoid or greatly reduce the rotor blade vibration caused by the excitation force of steam flow and reduce the dynamic stress of the rotor. Preliminary studies have shown that the stator blade inclination angle is 20-25 ° Better.This effective structural improvement is worth attention.