化工泵机械密封选用及失效分析

介绍了机械密封的原理、结构和组成;重点对化工泵的泄漏点进行详细分析,主要存在五处泄漏位置,关键是动密封点泄漏的处理。通过对机械密封的详细介绍,提出日常化工泵机械密封失效的形式和原因的分析,提出日常机械密封维护中相应改进和选用。

The principle,structure and composition of mechanical seal are introduced,and the leakage point of chemical pump is analyzed in detail.there are mainly five leakage positions,the key is the treatment of leakage of dynamic sealing point.Through the detailed introduction of the mechanical seal,this paper puts forward the analysis of the failure forms and causes of the mechanical seal of the daily chemical pump,and puts forward the corresponding improvement and selection in the daily mechanical seal maintenance.