石油化工用离心压缩机干气密封故障检测方法  

Detection Method for Dry Gas Seal Failure of Centrifugal Compressors Used in Petrochemical Industry

作　　者：郭轩志 GUO Xuanzhi(CNOOC(China)Co.,Ltd.Tianjin Branch,Tianjin 301700,China)

机构地区：[1]中海油(中国)有限公司天津分公司,天津301700

出　　处：《化工管理》2025年第8期129-132,共4页Chemical Management

摘　　要：文章针对石油化工用离心压缩机干气密封故障频发、检测难度大的问题,提出了一种基于振动信号分析、声发射技术和温度场分析的多源信息融合故障检测方法。通过在乙烯裂解装置的现场实验,验证了该方法的有效性,结果表明该方法能够实现干气密封故障的早期诊断和精确定位,整体诊断精度超过95%,漏检率控制在3%以内。This paper addresses the issue offrequent failures and difficult detection of dry gas seals in centrifugal compressors used in petrochemical applications.A multi-source information fusion fault detection method based on vibration signal analysis,acoustic emission technology,and temperature field analysis is proposed.Through on-site experiments on an ethylene cracker facility,the effectiveness of this method is validated.The results show that this method can achieve early diagnosis and precise localization of dry gas seal faults,with an overall diagnostic accuracy exceeding 95%and a false-negative rate controlled below 3%.

关 键 词：离心压缩机 干气密封 故障检测 多源信息融合 

分 类 号：TE974[石油与天然气工程—石油机械设备]