结合大功率核电汽轮机末级叶片的开发经验，介绍了核电汽轮机长叶片开发的一般流程，包括转速、根径、叶高等关键参数确定的基本原则和需要考虑的因素。结合核电机组排汽湿度大、末级叶片高度长的特点，从工程设计的角度对结构、叶型、防水蚀、转子叶片耦合振动等一些关键问题进行了探讨分析。

In combination with the development experience of low pressure last stage blades of highpower nuclear power turbine, the general process of development of last stage long blades of nuclear power turbine is introduced, including the fundamental principle and considered factors determined by rotation speed, root diameter,blade height and other key parameters.Combined with the characteristics of high exhaust humidity and long height of last stage blades of nuclear power unit, some key issues such as structure, blade profile, water erosion resistance and coupled vibration of rotor blades, etc. are discussed and analyzed.

TK221

黑龙江省“百千万”工程科技重大专项之“华龙一号核电汽轮机组关键设备研制”（2020ZX01A01）