Abstract:

This paper, based on the end using of mechanical sealing and functioning of catalysis centrifugal pump in Yumen Oil Refinery, explains the leakage of mechanical sealing of centrifugal pump, analyzes the mechanical sealing features from structure, reveals the leakage forms and presents a solution that the mechanical sealing can be replaced by the bellows mechanical sealing.

Key words:

centrifugal pump; mechanical sealing; leakage

摘要：

本文着重从机械密封的终端使用情况并结合玉门炼油厂催化装置泵的运行情况，来说明泵的机械密封泄露原因。作者首先从结构上分析了泵的机械密封特性，继而指出了离心泵机械密封的失效形式及解决方案，最后提出了波纹管机械密封，可有效克服机械密封使用的不足。本文侧重从机械密封的选材、安装及结构上来处理机械密封的泄露问题，对设备维护和检修起到示范作用。

关键词: 离心泵；机械密封；泄露