干气密封热变形影响因素分析  

Influencing factor analysis on thermal deformation of dry gas seal

作　　者：秦小屿[1] 李娜[1] 朱维兵[1] 王和顺[1] 

机构地区：[1]西华大学机械工程与自动化学院,成都610039

出　　处：《机械设计与制造》2010年第11期180-182,共3页Machinery Design & Manufacture

基　　金：四川省教育厅重点项目(09202032)

摘　　要：热变形是影响干气密封性能、使用寿命及密封失效的主要原因之一。以某合成气压缩机T型槽干气密封稳态时动环的热变形分析为例,基于有限元分析软件ANSYS,详细研究了工况参数、材料参数、几何参数等对密封环热变形的影响。数值模拟结果表明:低速工况下密封环热变形较小,约束条件和几何形状对密封环端面热变形曲度影响更为显著,几何参数对密封环端面变形影响比材料参数更大;并得出了各因素对密封端面热变形量和热变形锥度影响的因次顺序。分析结果对于密封环变形的控制、密封设计及优化具有指导意义。Thermal deformation is a main reason of influencing dry gas seal performance,seal failure,the service life.A T-groove dry gas seal ring of synthesis gas compressor dynamic steady state thermal deformation as an example,the working condition parameters,material parameters,geometric parameters to the impact way and extent of seal thermal deformation were analyzed by ANSYS.The simulation results show：lower speed,smaller thermal deformation;the impact of constraint condition and geometric shape to thermal deformation curvature is more obvious,and geometrical parameters greater than the material parameters on deformation of sealing ring face;and the order dimension of influencing thermal deformation and conicity of seal face was got.The analysis results for controlling of thermal deformation of sealing ring,seal design and optimization have great significance.

关 键 词：干气密封 热变形 影响因素 有限元分析 

分 类 号：TH138[机械工程—机械制造及自动化] O242.21[理学—计算数学]