Identifying critical installations in an area containing many chemical installations is important for the safety management of the chemical area. In this study, the area impact degree of chemical installations is defined, which is determined by analyzing the probability of accidents at other installations in the area when an accident occurs at a given installation, and the losses caused by each installation in the event of corresponding accident. Critical installations for area safety can be easily identified by comparing the area impact degree of different installations in the area. An illustrative example demonstrates the proposed approach. Analysis of the area impact degree of 6 tanks in a storage area and identification of more important installations for the safety of the entire area illustrate the applicability of this approach. Furthermore, our novel area importance analyzing approach is also compared with the graph approach.

识别包含许多化学装置的区域中的关键装置对于化学区域的安全管理很重要。在这项研究中，定义了化学装置的区域影响程度，它是通过分析给定装置发生事故时区域内其他装置发生事故的概率以及在相应情况下每个装置造成的损失来确定的。事故。通过比较该区域中不同设备的区域影响程度，可以轻松识别出区域安全的关键设备。一个说明性的例子说明了所提出的方法。对一个存储区域中6个储罐的区域影响程度的分析以及为确保整个区域安全而确定的更重要的装置的说明，说明了该方法的适用性。此外，