300MW汽轮机高中压外缸强度分析  

Strength Analysis of High and Intermediate Pressure Casings of 300 MW Steam Turbine

作　　者：方宇[1] 刘东旗[1] 喻刚[1] 

机构地区：[1]东方汽轮机厂,四川德阳618201

出　　处：《东方电气评论》2007年第2期27-32,共6页Dongfang Electric Review

摘　　要：在汽轮机高中压外缸的设计过程中,必须考虑其强度、刚性和法兰中分面密封性问题。本文采用三维弹性接触理论,建立300M W汽轮机高中压外缸的有限元模型,进而计算了汽缸的温度场、应力和变形。计算结果与实际情况较好吻合,可作为汽缸设计的依据,确保汽缸的安全可靠性。The calculations of the strength, stiffness and steamtight are very importang when high pressure and intermediate pressure casing of 300 MW steam turbine are designed. Based on the elastic contact theory, a three dimensional finite element model of 300 MW steam turbine is developed to calculate the temperature field, stress and deformation. The result of the calculations are conform with the fact. It shows the numerical analysis can provide usable data for casing design and improve its reliability.

关 键 词：汽缸 强度 三维接触 有限元 

分 类 号：TK263[动力工程及工程热物理—动力机械及工程]