汽轮机自动主汽门半双锥密封的改造研究  

Modification research of the half-double cone seal connection used in auto-master valve of steam turbine

作　　者：纪昌宏[1] 

机构地区：[1]中国石化仪征化纤股份有限公司热电生产中心,江苏仪征211900

出　　处：《合成技术及应用》2012年第4期49-53,共5页Synthetic Technology & Application

摘　　要：对仪化热电厂的自动主汽门自密封结构的失效原因进行了分析,通过建立半双锥密封结构有限元模型,分析连接结构的形变和强度,确定了自动主汽门半双锥环密封结构的最佳改造方案,为同类型电厂高温高压阀门的自密封泄漏分析处理提供了可靠经验。Failure faults of the automatic main valve sealing structure used in the Yizheng Chemical Fiber Thermal Power Plant was investigated in this paper.Modification scheme of half-double cone seal connection used in auto-master valve of steam turbine was determined through the deformation and strength analysis of the joint structure by using of finite element method.The conclusions can be used as the basis of the leakage analysis for the same kind of sealing structure.

关 键 词：自动主汽门 泄漏 半双锥密封 有限元分析 结构改进 

分 类 号：TK267[动力工程及工程热物理—动力机械及工程]