流体机械2017，Vol.45Issue(4)：15-21,7.DOI:10.3969/j.issn.1005-0329.2017.04.004
外加压静压型机械密封均压槽设计对动态性能的影响
Influence of Equalizing Grooves Design for Externally Pressurized Hydrostatic Mechanical Seal on Dynamic Performance
摘要
Abstract
Externally pressurized hydrostatic gas seal show good performance with low speed.Additionally,it can be easily adjusted by controlling gas source pressure.A good tracing ability keeps a seal away from malfunctioning when affected by misalignment and axial runout of non-floating ring.A perturbation method is applied to calculate dynamic coefficients of seal with integral and divided equalizing groove(s),and then tracing performance is calculated.The comparison of results between seal employing integral and divided equalizing groove(s) shows that although there is no obvious difference in axial properties,seal with divided equalizing grooves works with significantly higher angular direct dynamic stiffness and traces misalignment of non-floating ring better.关键词
外加压静压气体密封/小扰动法/追随性Key words
externally pressurized hydrostatic gas seal/perturbation method/tracing ability分类
机械制造引用本文复制引用
尹源,刘向峰,丛国辉,胡松涛,黄伟峰,李双喜,王磊..外加压静压型机械密封均压槽设计对动态性能的影响[J].流体机械,2017,45(4):15-21,7.基金项目
国家重点基础研究计划项目(2012CB026003) （2012CB026003）
国家科技重大专项课题(ZX06901) （ZX06901）
国家科技支撑计划课题(2015BAA08B02) （2015BAA08B02）
