超临界汽轮机中压缸热应力的有限元分析  

Finite Element Analysis of Thermal Stress in Supercritical IP Turbine Casings

作　　者：李俊[1] 戴韧[1] 王宏光[1] 袁鹰[2] 刘岩[2] 张军辉[2] 

机构地区：[1]上海理工大学动力工程学院,上海200093 [2]上海汽轮机有限公司,上海200240

出　　处：《发电设备》2008年第4期277-280,共4页Power Equipment

摘　　要：应用有限元分析程序计算分析了超临界1 000 MW汽轮机中压内缸稳态运行时的温度场、热应力、综合应力,得到了该汽轮机中压缸较全面的强度数据。并对中压内缸进行了接触分析,考核其汽密性,为汽缸的安全性评定和寿命预测提供了技术依据。Finite element analysis programs were used for calculation and analysis of the temperature field, thermal stress, comprehensive stress of a 1 000 M W supercritical turbine＇s intermediate pressure （IP） casing, hence a series of strength data were obtained. Meanwhile, contact analysis of the IP inner casing was also performed for checking its tightness, which may serve as a reference for safety and life assessment of the casing.

关 键 词：能源与动力工程 超临界汽轮机 中压缸 热应力 汽密性 

分 类 号：TK263.1[动力工程及工程热物理—动力机械及工程]