摘要
使用可靠性框图方法对在役平台安全仪表功能(SIF)进行安全完整性等级(SIL)验证计算。根据标准IEC 61508/61511计算回路的随机失效的SIL pfd及结构约束的SIL ac,综合两者得出安全功能回路的安全完整性等级,判断其是否达到要求的SIL等级。
Make SIL(safety integrity level)verification of in-service platform SIF(safety instrumented function)in service by using reliability block diagram method.Get the random failure SIL pfd and the architecture constraints SIL ac according to the standard IEC 61508/61511,and then integrate both values to take the hardware SIL of safety functions to judge whether the safety functions can meet the SIL.
作者
张春娥
严雪莲
周晓艳
唐敏
彭宇
ZHANG Chun-e;YAN Xue-lian;ZHOU Xiao-yan;TANG Min;PENG Yu(Offshore Oil Engineering Co.,Ltd.,Tianjin 300451,China)
出处
《盐科学与化工》
CAS
2020年第12期32-35,共4页
Journal of Salt Science and Chemical Industry
关键词
安全仪表系统
SIL验证
可靠性框图
Safety integrity level
SIL verification
Reliability block diagrams
