离心式压缩机干气密封运行维护研究

Research on Dry Gas Seal Operation and Maintenance of Centrifugal Compressor

干气密封作为离心式压缩机的一种新型密封方式,以优异的密封性能和可靠性逐渐成为压缩机密封的主流选择。但是,干气密封在运行过程中面临多种复杂的问题和挑战。基于此,研究离心式压缩机干气密封的运行维护问题。先对离心式压缩机干气密封的工作原理进行概述,再详细探讨干气密封在运行过程中可能出现的故障类型与原因,并提出针对性的运行维护策略,包括加入密封气增压系统、预防固体杂质进入干气密封内、降低密封面干摩擦的发生次数及严把密封圈质量关等,以期提升运行维护措施的有效性,为离心式压缩机的安全运行提供有力保障。

As a new type of sealing method for centrifugal compressors,dry gas sealing has gradually become the mainstream choice for compressor sealing with excellent sealing performance and reliability.However,the dry gas seal faces many complex problems and challenges during operation.Based on this,the operation and maintenance of dry gas seal of centrifugal compressor is studied.Firstly,the working principle of dry gas seal of centrifugal compressor is summarized,and then the types and causes of possible failures of dry gas seal during operation are discussed in detail,and targeted operation and maintenance strategies are proposed,including adding sealing gas booster system,preventing solid impurities from entering the dry gas seal,reducing the frequency of dry friction of sealing surface and strictly controlling the quality of sealing ring.In order to improve the effectiveness of operation and maintenance measures,it provides a strong guarantee for the safe operation of centrifugal compressor.