低速非接触式机械密封发展现状研究  

Research on the State of the Art of Non-contact Mechanical Seals at Low Speed

作　　者：王衍[1] 孙见君[1] 马晨波[1] 涂桥安[1] 周飞[2] 

机构地区：[1]南京林业大学机械电子工程学院,江苏南京210037 [2]南京航空航天大学高新技术研究院,江苏南京210016

出　　处：《液压气动与密封》2013年第5期80-84,共5页Hydraulics Pneumatics & Seals

基　　金：江苏省自然科学基金资助项目(BK2010074);江苏高校科研成果产业化推进资助项目(JH10-16);江苏省研究生培养创新工程资助项目(CXZZ12_0525);教育部博士点专项科研基金项目(20113204120012)

摘　　要：针对低速工况气体密封研究较少而实际生产中又迫切需要开发的现状,该文将低速非接触式机械密封分成低速液膜非接触式和低速气膜非接触式两大类进行了讨论。文中分别从研究现状、端面结构、工作原理等几个方面对两类密封进行了对比分析,简要给出了其各自适宜的应用场合,以期使广大从事机械密封的工作人员对这两类密封有较全面的了解,并对设计和选型有一定的帮助。According to the statuses of the less research on the gas seals under the low speed working condition and the sore need in the present actual production, this paper has carried out the discussions on the low speed non-contact mechanical seal by means of dividing it into low liquid film non-contact and low gas film non-contact two categories. The comparison and analysis on two types of seals were made from the aspects of the research situation, the face structure, working principle, and their individual application fields were briefly given. These works will make the technical workers have a broad comprehensive understanding between the two types of seals, and some of the beneficial help to their design and type selection.

关 键 词：非接触式机械密封 液膜 气膜 低速 

分 类 号：TB42[一般工业技术] V233.42[航空宇航科学与技术—航空宇航推进理论与工程]