The safety evaluation index system carries the security status of the entire evaluation object,iden-tifies the key risk factors,and can improve the security level of the enterprise.Chemical safety evaluation indicators have a large amount of data,high data dimension,strong stability,and there is a problem that the classification and differentiation of similar evaluation indicators are incorrect,so it is necessary to improve the system resolution of similar safety evaluation indicators.Combined with the chemical process safety e-valuation index system,the grey correlation analysis model of the chemical process safety evaluation index system was constructed,and the grey correlation analysis model was systematically optimized by using the strategy of"two-by-two comparison and ergodic solving",and a method for determining the adjustment co-efficient(ρ)value of adaptive evaluation index data scale was proposed,and empirical analysis was carried out with coal water slurry gasification process as an example.The results are as follows:at first,when the grey correlation analysis model is used for the importance analysis of chemical process safety evaluation in-dicators,the discrimination between similar evaluation indicators is greater;secondly,through the compari-son with the original model,the optimized grey correlation analysis model improves the resolution of sys-tem correlation by 15％,which increases the accuracy rate of safety evaluation work.The model has a refer-ence role in determining the chemical safety evaluation index system with the similar data characteristics,and provides a new way for chemical enterprises to more effectively evaluate the safety status.
关键词
化工工艺/安全评价指标体系/自适应/灰色关联度分析
Key words
chemical process/safety evaluation index system/adaptivity/grey correlation analysis
维普
万方数据