600MW超超临界汽轮机转子热应力有限元分析  

Finite Analysis of Thermal Stress on 600MW Ultra-supercritical Steam Turbine Rotor

作　　者：孟召军[1] 李赛[1] 王光定 贾丽娜[1] 

机构地区：[1]沈阳工程学院,沈阳110136

出　　处：《汽轮机技术》2016年第3期172-174,194,共4页Turbine Technology

基　　金：辽宁省教育厅项目(L2010382)

摘　　要：选取600MW超超临界汽轮机转子调节级为计算对象,利用有限元计算软件AYNSYS,对调节级在热态启动过程中的热应力进行分析,得到了调节级温度场及应力场的分布规律。结果表明,汽轮机转子调节级叶轮根部存在明显的应力集中,可选此部位为监测点开发汽轮机转子热应力在线监测系统。600MW uhra-supercritical steam turbine rotor governing stage was selected for calculating object, the thermal stress of governing stage in the process of thermal state startup was analyzed with finite element software AYNSYS,and the distribution of temperature field and stress field on governing stage were achieved. The results showed that there is an obvious stress concentration on the impeller root of the steam turbine rotor governing stage, which can be regarded as a monitoring point to develop thermal stress on-line monitoring system for steam turbine rotor.

关 键 词：超超临界 汽轮机转子 调节级 热应力 有限元 

分 类 号：TK263.8[动力工程及工程热物理—动力机械及工程] TH113.1[机械工程—机械设计及理论]