基于HAZOP的负压隔离病房危险与风险分析

Hazard and Risk Analysis of Negative Pressure Isolation Ward Based on HAZOP

为填补负压隔离病房危险与风险分析的研究空白,提升病房控制系统功能安全水平。本文在调研负压隔离病房设计原理、联锁控制、压力检测与调试的基础上,采用危险性与可操作性分析法(Hazard and Operability Analysis,HAZOP)分析安全状态参数异常的潜在诱因、可能后果及其风险等级,并确定了安全仪表功能,从而为后续分配安全仪表功能的安全完整性等级提供了指导依据。

In order to fill the gap of hazard and risk analysis in negative pressure isolation ward and improve functional safety of its control system. Based on the investigation of its design principle, interlock control, pressure detection and debugging, Hazard and Operability Analysis method was used to analyze the potential inducement, possible consequence and its risk level of abnormal state parameters, and the safety instrument function was determined. Thus, this provides guidance for the subsequent allocation of safety integrity level of safety instrument function.