化工园区储罐多米诺效应的脆弱性评估

In order to reduce the probability of domino effect in the chemical tank area, the vulnerability of each storage tank is evaluated to protect the tank that has a maximum accident probability of domino effect and the greatest impact on accidents. First, the definition of vulnerability of storage tanks under domino effect was proposed based on the connotation of vulnerability in different fields and the characteristics of domino effect. Second, by using the objectivity of entropy weight matter element extension model and risk matrix method in combination with the importance of complex network model and technique for order preference by similarity to ideal solution (TOPSIS) in evaluating the accident network node, a model for vulnerability grade evaluation of tanks under domino effect was constructed from the possibility of initial accident and the influence of propagation. Finally, the model was used to evaluate the vulnerability level of each tank in a chemical industry park, and the results were compared with that of the Bayesian method. The results show that this model takes the attributes of tanks and the scope of impact into consideration and proves to be more accurate with its vulnerability grading results.