汽轮机新型轴端汽封碰磨的有限元分析  

New Type Steam Turbine Shaft End Seal to Touch the Ground of the Finite Element Analysis

作　　者：孟召军 刘晶晶 刘彦良 高涵 郭宝仁 MENG Zhao-jun;LIU Jing-jing;LIU Yan-liang;GAO Han;GUO Bao-ren(Shenyang Institute of Engineering,Shenyang 110136,China;North China Electric Power Research Institute Company Limited,Shenyang 110136,China)

机构地区：[1]沈阳工程学院能源与动力学院,沈阳110136 [2]华北电力科学研究院有限公司,沈阳110136

出　　处：《汽轮机技术》2019年第6期451-453,共3页Turbine Technology

基　　金：辽宁省教育厅项目(JL-1904)

摘　　要：针对提出的新型接触型汽封建立三维模型,根据汽封实际工作环境,利用有限元软件ANSYS对新型汽封在机组额定工况下的碰磨进行温度场及应力场的有限元分析,分析结果表明,密封副碰磨后的温度分布、应力分布均匀合理,不会引起汽轮机大轴弯曲变形,验证了新型汽封的可实施性,并对该汽封的性能及安全运行的分析提供理论基础。In a gland of contact and establish a three-dimensional entity model,seal based on the actual working environment,using the finite element software ANSYS,to seal in the unit of measurement under the rated conditions to simulate the temperature field analysis and calculation of new type seal thermal stress,the results show that the seal of the temperature distribution is reasonable,the thermal stress is less than the yield limit of their own,to verify the new sexual gland,and the seal performance and provide theoretical basis for safe operation of the analysis.

关 键 词：旋转机械 汽封 有限元 热应力 

分 类 号：TK263.2[动力工程及工程热物理—动力机械及工程]