摘要
针对石油天然气行业仪表系统的安全使用问题,提出了一种基于HAZOP-LOPA方法和SIL定级方法的仪表系统设计安全评价方法,首先对HAZOP方法、LOPA方法和SIL定级方法进行理论介绍,以案例的方式,使用HAZOP方法对仪表系统进行安全辨识,使用LOPA方法确定仪表系统的SIL等级,并对其进行验证,证明本次研究所提方法的可行性。结果表明:使用HAZOP方法可以对仪表系统的安全性进行定性分析,引入LOPA方法以后,可以对其进行定量评价,如果仪表系统的SIL等级较低,需要对仪表系统进行合理调整。本次研究证明HAZOP-LOPA方法与SIL定级方法可以对石油天然气行业仪表系统进行有效安全评价。
Aiming at the problem of safe use of instrument system in oil and gas industry,a safety evaluation method of instrument system design based on HAZOP(hazard and operability analysis)-LOPA(protection layer analysis)method and SIL(safety instrument level)grading method was proposed in this study.Firstly,HAZOP method,LOPA method and SIL grading method were introduced in theory,and a case study was given,HAZOP method was used to identify the safety of the instrument system,and LOPA method was used to determine the SIL level of the instrument system,which was verified to prove the feasibility of the proposed method.The research showed that:HAZOP method could be used to qualitatively analyze the safety of instrument system,and LOPA method could be used to quantitatively evaluate it.If the SIL level of instrument system was low,the instrument system needed to be reasonably adjusted.This study proved that HAZOP-LOPA method and SIL grading method could effectively evaluate the safety of instrument system in oil and gas industry.
作者
张上
ZHANG Shang(Qingdao CNPC Huadong Safety and Environmental Protection Co.,Ltd.,Beijing 100101,China)
出处
《当代化工》
CAS
2021年第11期2689-2693,2701,共6页
Contemporary Chemical Industry
基金
国家自然科学基金项目(项目编号:51174046)。
