低速运转气膜机械密封端面波度和锥度对其密封性能的影响  

The Influence of Waviness and Taper of seal faces to the Operating Performance at Slow Speed of Gas Face Seal

作　　者：李伟[1] 宋鹏云[1] 赵越 曹登峰[1] 

机构地区：[1]昆明理工大学生物与化学工程学院,云南昆明650224 [2]曲靖卷烟厂云南,曲靖655000

出　　处：《浙江化工》2006年第4期10-14,共5页Zhejiang Chemical Industry

基　　金：云南省自然科学基金资助项目(项目编号2003E0022M);云南省教育厅教学科研学术带头人人才项目资助

摘　　要：气体润滑机械密封端面周向波度和径向锥度是影响密封低速运转性能的重要参数。本文以螺旋槽气体润滑机械密封为研究对象,采用有限单元法分别对周向波度、径向锥度对其低速运转性能的影响规律进行了较为详细的分析研究。理论分析表明:在低速运转条件下,波度幅值及其起始角对螺旋槽气膜密封的各项性能都具有重大影响;密封端面正锥度的增加能使密封气膜刚度显著提高,但同时也使密封的泄漏量有所增加。The circular waviness and radial taper of gas face seal are two important parameters important effects on seal＇s operating performance. As a typical example, the spiral grooved gas face that have seal was analyzed in detail with the consideration of seal face＇s waviness and taper through finite element method. At slow speed, the amplitude and origination angle of waviness have great effects on spiral grooved gas face seal＇s operating performances. With the increasing of seal face＇s positive taper, the stiffness of gas film would obviously increase, but the leakage of seal would also increase.

关 键 词：波度 锥度 气膜密封 有限单元法 

分 类 号：TB42[一般工业技术]