超临界汽轮机研制的关键技术及解决策略研究

Research on Key Technology of Supercritical Steam Turbine

针对超临界汽轮机蒸汽参数高的运行特点,指出了汽轮机零部件高温安全问题、固体颗粒腐蚀、汽流激振以及对机组效率的更高要求等关键难点。通过开发高温材料,采用转子冷却、防汽流激振和固体颗粒腐蚀等设计技术,设计制造了超临界汽轮机,圆满地解决了以上难题,在实际运行中安全高效。也为我国自主开发更高等级机组打下坚实基础。

According to the high steam parameter of supercritical steam turbine in running, this paper indicates a series of key difficulties, such as safety of parts in high temperature condition, solid particles erosion , steam excited vibration, more higher efficiency, etc. These difficulties above were solved successfully by technologies of high temperature materials, rotor cooling, protection against steam excited vibration and solid particles erosion. This power unit has high safety and efficiency in working, lays a solid foundation for development of high parameters units by self-research in China.