以大七孔电站机组为例 ,主要介绍了国际上首次采用的高转速高水头小型混流式水轮机分瓣转轮结构的特点及所采用的制造新工艺方法 ,为今后小型机组的设计与制造提供了成功的经验 Taking the Big Seven Power Station as an example, this paper mainly introduces the characteristics of the structure of the split rotor of the high-speed small-sized Francis turbine and the new manufacturing method adopted for the first time in the world, and provides the design and manufacture of small units in the future The successful experience