摘要
大型石油化工系统工艺过程复杂、操作条件苛刻,容易发生故障并引起停机和安全事故。FMECA为国内外常用的风险分析方法之一,在研究FMECA的优点和不足之处,采用系统故障的平均经济后果,考虑系统的维修效果和成本,提出了一种新的FMECA-Cost风险分析方法,并应用于连续重整催化反应系统风险分析。结果表明,FMECA-Cost方法比传统的FMECA方法更为有效,更接近工程实际。
The petrochemical units are easily subjected to equipment failures, system halt or e- ven safety accidents because of their complex technical processes and rigorous operation condi- tions. In view of petrochemical complex system, study of reliability and risk analysis are very im- portant. The traditional FMECA （the Failure Mode, Effect and Criticality） method was revised by considering maintenance cost in this research work. A new risk analysis method specified as FMECA-Cost, which reveals failure model hazard by quantantive risk and considering mainte- nance effect, was proposed to solve the difficulty problems in risk analysis of complex systems. The mean time before failure （MTBF） of repairable equipment was used to calculated the average frequencies of failure models. The failure consequence was classified into two kinds： normal eco- nomic consequence and safety consequence. Thus the mean consequence is the probability weigh- ted average of economic consequence and safety consequence. The FMECA-Cost method was ap- plied into the catalytic reaction system（CRS）. Ten failure models with highest risks were re- vealed. Meanwhile, the correspoding preventive measures were given.
出处
《石油化工设备》
CAS
2012年第1期4-10,共7页
Petro-Chemical Equipment
基金
国家"863计划"资助项目(NO:2009AA04Z402)
中央高校基本科研业务费专项基金(NO:XJJ20100076)
关键词
石油化工系统
催化反应系统
可靠性
风险
petrochemical system
catalytic reaction system
reliability
risk
作者简介
作者简介：程光旭（1960-），男，山东菏泽人，教授，博士，主要从事化工系统及装备的可靠性研究。
