流体机械2012，Vol.40Issue(1)：13-16,5,5.DOI:10.3969/j.issn.1005-0329.2012.01.004
双向旋转树型槽密封端面气膜动压特性
Analysis of Hydrodynamic Characteristics of Bi-direction Fir Tree Groove Gas Face Seal
摘要
Abstract
Based on gas lubrication theory, analysis model of a bi-direction fir tree groove gas seal is established in this paper. In order to discuss hydrodynamic characteristics of fir tree groove under different operation conditions, numerical analysis was carried out by comparing with a spiral face seal. Numerical results show that bi - direction fir tree groove gas seal presents good dynamic effect,which is affected prominently by operating parameters, e. G. Seal number,sealing pressure and clearance. With increasing seal number increased or decreasing sealing pressure,the hydrodynamics opening ability increases obviously.关键词
双向旋转树型槽干气密封/压力分布/操作参数/动压特性Key words
bi - direction fir tree groove dry gas seal/pressure distribution/operation conditions/hydrodynamic effect分类
机械制造引用本文复制引用
马媛媛,彭旭东,白少先,孟祥铠,古通生..双向旋转树型槽密封端面气膜动压特性[J].流体机械,2012,40(1):13-16,5,5.基金项目
国家自然科学基金资助项目(50805130,51175470) （50805130,51175470）
教育部高等学校博士学科点专项科研基金资助课题(20103317110002) （20103317110002）
浙江省自然科学杰出青年基金资助(R1090833) （R1090833）
浙江省自然科学基金资助(Y1090620) （Y1090620）
