液化气泵机械密封故障分析及改造  

Failure Analysis and Rebuilding on the Mechanical Seal of Liquefied Gas Pump

作　　者：刘军峰[1] 

机构地区：[1]中国石油大学(华东)石大科技集团有限公司,山东东营257061

出　　处：《润滑与密封》2009年第10期113-114,共2页Lubrication Engineering

摘　　要：分析了P304液化气泵泄漏的主要原因,采用碳化硅/浸锑石墨摩擦副代替原碳石墨/碳石墨摩擦副和串联机械密封代替原单端面多弹簧机械密封,对该泵摩擦副材质及结构进行了改造。改造后机械密封运行良好,实现了长期运转无泄漏。The main reasons for the leakage of the seal of P304 liquefied gas pump were discussed. The friction pair and the seal structure were rebuilt by replacing carbon graphite/carbon graphite friction pair with silicon carbide/antimony impregnated graphite friction pair, and single face and multi-spring mechanical seals with tandem mechanical seal, which realizes non-leakage of the liquefied gas pump.

关 键 词：离心泵 串联机械密封 摩擦副 

分 类 号：TH136[机械工程—机械制造及自动化]