210MW凝汽式汽轮机末级长叶片汽蚀问题研究  

Research on Cavitation of Long Blades in the Last Stage of 21 OMW Condensing Steam Turbine

作　　者：吴闯 WU Chuang(Harbin Electric Co.,Ltd.,Harbin,Heilongjiang Province,150028 China)

机构地区：[1]哈尔滨电气股份有限公司,黑龙江哈尔滨150028

出　　处：《汽车知识》2022年第6期159-161,共3页Auto Know

摘　　要：为评估汽轮机转子叶片的寿命,对210MW凝汽式汽轮机转子叶片的侵蚀过程和腐蚀机理进行了长期监测和分析,分析了末级动叶的累积侵蚀过程,并在简化模型的基础上估算了其寿命,该方法可为其他汽轮机机组类似问题的研究提供参考和借鉴。该文通过回顾多年来对凝汽式汽轮机动叶侵蚀过程规律及其机理的监测和研究,分析了动叶侵蚀过程的规律,建立了简化模型,估算了动叶的使用寿命。该研究成果可为汽轮机叶片的腐蚀过程研究和寿命评估提供参考和借鉴。s:The erosion caused by wet steam flow reduces the efficiency of the last stage rotor blades of condensing steam turbines,and makes their service life shorter.To date there has been insufficient data on the erosion process which the steam turbine rotor blades are subject to during the operation,data which could be a basis for development and verification of mathematical models to estimate the service life of eroded rotor blades.This paper reviews the results of many years monitoring and researching of the laws of the erosion process and its mechanism for rotor blades of condensing steam turbines.On the basis of the obtained laws of the rotor blades erosion process and a simplified model their service life is estimated.

关 键 词：侵蚀 转子 叶片 

分 类 号：U461[机械工程—车辆工程]