摘要：The technological revolution has spawned a new generation of industrial systems, but it has also put forward higher requirements for safety management accuracy, timeliness, and systematicness. Risk assessment needs to evolve to address the existing and future challenges by considering the new demands and advancements in safety management. The study aims to propose a systematic and comprehensive risk assessment method to meet the needs of process system safety management. The methodology first incorporates possibility, severity, and dynamicity (PSD) to structure the "51X" evaluation indicator system, including the inherent, management, and disturbance risk factors. Subsequently, the four-tier (risk point-unit-enterprise-region) risk assessment (RA) mathematical model has been established to consider supervision needs. And in conclusion, the application of the PSD-RA method in ammonia refrigeration workshop cases and safety risk monitoring systems is presented to illustrate the feasibility and effectiveness of the proposed PSD-RA method in safety management. The findings show that the PSD-RA method can be well integrated with the needs of safety work informatization, which is also helpful for implementing the enterprise's safety work responsibility and the government's safety supervision responsibility.

关键词：Risk assessment; Safey"51X" evaluation indicator system; Four -tier risk assessment model; Risk attributes; Process system

资金资助：This paper is based on the key technology project for the prevention and control of major workplace safety accidents in 2017 from the State Administration of Work Safety of China―the research on the identification and assessment technology and control system of major risks of enterprises for the prevention and control of severe accidents (Hubei-0002-2017AQ). This study is also supported by the Department of Emergency Management of Hubei Province, Wuhan 430064, China.

DOI：10.1016/j.cjche.2023.12.014

原文刊载于：CHINESE JOURNAL OF CHEMICAL ENGINEERING，APR 2024

WOS链接：https://webofscience.clarivate.cn/wos/woscc/full-record/WOS:001234212300001