首页 | 本学科首页   官方微博 | 高级检索  
     

螺旋槽干气密封端面间气膜特性
引用本文:蒋小文,顾伯勤. 螺旋槽干气密封端面间气膜特性[J]. 化工学报, 2005, 56(8): 1419-1425
作者姓名:蒋小文  顾伯勤
作者单位:南京工业大学机械与动力工程学院,江苏 南京 210009
摘    要:螺旋槽干气密封是一种新型的非接触式机械密封,它具有介质泄漏量少、端面磨损小、能耗低、运行寿命长和可靠性高等优点.采用有限元法对螺旋槽干气密封端面间气体的流动过程进行了数值模拟研究,得到了端面间气膜的压力分布规律并对主要的密封性能参数——开启力、端面摩擦力、摩擦功耗、轴向刚度以及泄漏量进行了计算,最后,探讨了操作参数和端面槽形几何参数对密封性能的影响.研究结果为螺旋槽干气密封的设计提供了有益的参考.

关 键 词:螺旋槽干气密封  气膜特性  有限元法  数值模拟  密封性能  槽形几何参数
文章编号:0438-1157(2005)08-1419-07
收稿时间:2004-07-12
修稿时间:2004-07-122005-03-24

Characteristic of gas film between spiral groove dry gas seal faces
JIANG Xiaowen,GU Boqin. Characteristic of gas film between spiral groove dry gas seal faces[J]. Journal of Chemical Industry and Engineering(China), 2005, 56(8): 1419-1425
Authors:JIANG Xiaowen  GU Boqin
Abstract:Spiral groove dry gas seal is a new type,non-contact mechanical seal, which has many advantages such as small leakage, little surface abrasion, low power loss, long service life and high reliability.Utilizing the finite element method, the flow of the gas between the spiral groove dry gas seal faces was investigated by numerical simulation.The pressure distribution of the gas film was obtained.The main seal performance parameters, such as open force, friction force of the face, frictional power loss, axial stiffness and leakage rate were calculated.The influence of the operation conditions and the spiral groove’s geometric parameters on seal performance was also analyzed.The research results provided valuable reference for design of the spiral groove dry gas seal.
Keywords:
本文献已被 CNKI 维普 万方数据 等数据库收录!
点击此处可从《化工学报》浏览原始摘要信息
点击此处可从《化工学报》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号