关键词: 保护层分析(LOPA) SIL评估 人员暴露概率 过程安全管理 修正因子, Layers of Protection Analysis (LOPA), SIL Evaluation, Human Exposure Probability, Process Safety Management, Correction Factor

Abstract: Combining with the layers of protection analysis (LOPA), through the establishment of event tree model which analyzes the human exposure probability relations with independent protective layers, and combining with the analysis of larger and major accident in correction factors of human exposure probability, make the LOPA analysis get more accurate results in risk analysis and formulate corresponding risk control activities.