| 带内环槽的螺旋槽干式气体端面密封的静压性能 |
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| 引用本文： | 彭旭东,谭丽丽,盛颂恩,白少先,李纪云.带内环槽的螺旋槽干式气体端面密封的静压性能[J].摩擦学学报,2008,28(6). |
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| 作者姓名： | 彭旭东 谭丽丽 盛颂恩 白少先 李纪云 |
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| 作者单位： | 1. 浙江工业大学,机械制造及自动化教育部重点实验室,浙江,杭州,310032;浙江工业大学,机电工程学院,浙江,杭州,310032
2. 浙江工业大学,机电工程学院,浙江,杭州,310032 |
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| 基金项目： | 国家自然科学基金资助项目(50575152,50775206);;浙江省科技计划资助项目(2008C21125);;宁波市科技项目(2006B100030) |
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| 摘 要： | 针对现场使用的带内环槽的螺旋槽干式气体端面密封,建立了用于预测其端面气膜压力的等温可压缩流二维雷诺方程,在只考虑静压效应的条件下应用有限元法计算了端面开启力、泄漏率、气膜刚度和刚漏比等密封性能参数,并与典型螺旋槽干式气体端面密封（S-DGS）进行了比较.结果表明：与S-DGS相比,前者具有更好的稳定性、润滑性能和开启特性.以获得最大刚漏比为优化原则,综合考虑密封的稳定性、密封性和开启特性,获得了带内环槽S-DGS在静压作用下的端面规则微槽几何参数的优选值,研究结果对有关密封的设计与选用具有指导意义.
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| 关 键 词： | 气体端面密封 螺旋槽 内环槽 静压分析 有限元法 |
Static Analysis of a Spiral-Groove Dry Gas Seal with an Inner Annular Groove |
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| PENG Xu-dong,TAN Li-li,SHENG Son-gen,BAI Shao-xian,LI Ji-yun.Static Analysis of a Spiral-Groove Dry Gas Seal with an Inner Annular Groove[J].Tribology,2008,28(6). |
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| Authors: | PENG Xu-dong TAN Li-li SHENG Son-gen BAI Shao-xian LI Ji-yun |
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| Institution: | 1.The MOE Key Laboratory of Mechanical manufacture and Automation;Zhejiang University of Technolog;Hangzhou 310032;2.College of Mechanical Engineering;Hangzhou 310032 |
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| Abstract: | A two-dimensional Reynolds equation was established for pressure prediction of the isothermal compressible gas film between the two faces of a spiral groove dry gas face seal with an inner annular groove.The sealing performance,such as opening force,leakage rate,axial film stiffness and the ratio of film stiffness to leakage were calculated by finite element method only considering hydrostatic effect of gas film,and comparison with typical spiral groove gas face seal(S-DGS) were made.The former method run b... |
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| Keywords: | dry gas face seals spiral groove inner annular groove static analysis finite element method |
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