石化装置安全仪表SIL验证设计

安全完整性等级SIL(safety integrity level)是用来表示安全仪表系统安全完整性要求的离散等级,通过平均失效概率(PFDavg)量化进行分级。装置中设计了SIL回路,如何确保设计的回路满足安全要求,本文对需要验证的整体构思及需要设计了解的内容给出明确的内容。

The security integrity level SIL is a discrete class used to represent the safety integrity requirements of a safety instrument system,and is quantified by means of average failure probability( PFDavg) quantification.The SIL loop is designed in the plant,and how to ensure the design loop meets the security requirements. This paper gives a clear idea of the whole concept that needs to be verified,and the contents that need to be designed and understood.