保护层分析(LOPA)在安全仪表系统SIL定级过程中的应用

Application of Layer of Protection Analysis(LOPA) in Safety Instrumented System SIL Grading Process

本文阐述了保护层分析的概念,举例说明了保护层分析如何用于确定安全仪表系统SIL等级,并结合实例说明了保护层分析技术运用应注意的要点。

In this paper, it has expounded the concept of LOPA, besides, illustrated how the layer of protection analysis ensures the safety instrumented system SIL level and the key points needing attention of LOPA technical application with practical examples.