摘要
根据实际生产维护经验和有关机构的统计数据,对安全仪表系统切断阀在线测试的必要性及重要性进行了阐述,并重点介绍了部分行程测试法的三种方法的利弊和应用实例。
Base on the actual experience of online maintenance and statistics data of related organizations, the authors elaborated the essentiality and significance regarding the online testing for the emergency shutdown valve of Safety Instrumented System, and emphatically recommended the three means of Partial Travel Testing, including their advantages, disadvantages, and application examples, etc.
出处
《石油化工自动化》
CAS
2002年第6期92-95,共4页
Automation in Petro-chemical Industry
关键词
安全仪表系统
安全完整性等级
可能发生的平均故障率
切断阀
在线测试
部分行程测试法
safety instrumented system (SIS)
safety integrity level (SIL)
average probability of failure on demand (PFDavg)
emergency shutdown valve
on-line testing
method of partial travel testing
