丁二烯萃取精馏塔釜离心泵的干气密封改造

Retrofits of the Dry Gas Seals of the Centrifugal Pumps of the Butadiene Extraction Distillation Column Reactors

针对精馏塔釜离心泵的机械密封使用寿命短、介质泄漏严重的现象,介绍了采用双端面干气密封的改造方案及干气密封特点。

The retrofit scheme of using double end dry gas seals and the characteristics of dry gas seals wee presented for the short service life and serious leakage of the machinery seals of the centrifugal pumps of distillation column reactors.