Influences of attack angle and mach number on aerodynamic characters of typical sections of extra-long blade in a steam turbine

On super-sonic or trans-sonic planar cascade wind tunnel of free jet intermittent type, wind blowing experiments were performed on the typical sections of stator and rotor blades in the last stage of ultra-ultra-critical steam turbine with extra-long blade of 1200mm. The influences of attack angle and Mach number on the aerodynamic performances of these sections of the blade profiles were verified, and their operating ranges were also specified.

先进大型核电汽轮机用末级特长叶片的疲劳性能研究

对现阶段用于先进大型核电汽轮机的末级特长叶片进行了疲劳裂纹扩展试验、高周旋转弯曲疲劳和高频疲劳性能试验研究,为设计提供数据支持,保证核电机组设计的安全性。

全速机组超长钢制叶片的开发

介绍了采用自带围带加一道联接件的全速机组超长钢制末级长叶片结构,该长叶片除了具有良好的经济性以外,还具有很好的强度,振动特性,对大功率机组低压部分的开发起到良好的先导作用。