热油泵机械密封的端面失效形式  

Failure Rules of Hot Oil Pump Mechanical Seal

作　　者：刘录[1] 沈齐英[1] 孔继兰[2] 沈秋英[3] 

机构地区：[1]北京石油化工学院,北京102600 [2]燕山石油化工公司,北京102500 [3]辽宁石油化工大学,辽宁抚顺市113001

出　　处：《润滑与密封》2003年第4期28-30,共3页Lubrication Engineering

摘　　要：根据机械密封在变工况条件下的实验室实验,探讨了变工况发生时机械密封端面比压变化的各种影响因素,提出机械密封在变工况发生时液膜相变导致的液膜失稳和开启失效条件,推导了端面参数的变化规律。By means of the test of mechanical face seal in changing condition, the influence factors of liquid film change in face seal are discussed, the mechanisms of opening failure and liquid-film unsafely in mechanical face seal due to phase change are analyzed and failure rules are developed.

关 键 词：热油泵 机械密封 相变 液膜失稳 端面开启 

分 类 号：TH3[机械工程—机械制造及自动化] TH136