The control stage of improved 300MW steam turbine used bowed static blade cascades with convergent tip endwall and integral shroud triple pin rotating blades.

• 优化了300MW汽轮机的调节级,采用了子午面端壁收缩的弯曲叶栅,动叶为自带围带三销钉三联叶片,再用铆接围带形成整圈联结叶片。