Method and device for selecting optimal emergency evacuation route for hazardous chemical enterprise

Abstract

The invention discloses a method and device for selecting an optimal emergency evacuation route for a hazardous chemical enterprise. A leakage condition of a hazardous chemical enterprise and a jointdistribution probability of a wind farm are received, a real leakage scene set is constructed to carry out leakage simulation, gas concentrations of all preset monitoring points in all leakage scenesare recorded in real time, and a possible leakage diffusion region is determined; whether the gas concentrations of all to-be-evacuated sites in different leakage scenes reach a preset alarm thresholdis determined and the leakage scenes that may trigger alarming are used as evacuation scene sets of the to-be-evacuated sites; evaluation routes are determined and the evaluation routes connecting random route outlet points at accumulated boundaries of all possible leakage diffusion regions are selected from the determined evaluation routes to form a standby evaluation route set; and personnel toxication risks of all evacuation scenes of the standby evaluation routes are calculated to obtained an accumulated individual toxication risk, traversing of the standby evaluation route set is carriedout, and an optimal evacuation route is obtained by using a minimum accumulative individual toxication risk as an optimization function. Therefore, the blindness of the evacuation route selection iseffectively eliminated and the success rate of evacuation is greatly improved.

Description

technical field [0001] The invention belongs to the technical field of emergency evacuation of hazardous chemical enterprises, and relates to a method and device for optimizing emergency evacuation routes of hazardous chemical enterprises, in particular to an optimal emergency evacuation route for personnel of hazardous chemical enterprises when toxic gas leakage occurs in various scenarios Methods and devices. Background technique [0002] At present, people's research on emergency evacuation is mainly focused on the evacuation inside the building when a fire occurs, and the research on regional evacuation is also mainly concentrated on the evacuation of road traffic areas. There are few studies on evacuation, and there are many difficulties in the research: on the one hand, the diffusion process after poison gas leakage is an extremely complicated process, and in the emergency evacuation process, it is necessary to predict the spatiotemporal evolution of the poison gas dif...

AI Technical Summary

Problems solved by technology

[0007] Aiming at the deficiencies in the existing technology and solving the problem of how to simultaneously consider multiple scenarios of toxic gas leakage in a comprehensive hazardous chemical enterprise and judge the optimal emergency evacuation route in the prior art, the present invention provides a hazardous chemical A method and device for optimizing emergency evacuation routes in enterprises, especially a method and device for optimizing emergency evacuation routes for personnel in hazardous chemical enterprises when toxic gas leakage occurs in various scenarios, effectively realizing the optimization of emergency evacuation routes considering the uncertainty of the wind field and leakage scenarios Quantitatively judge the optimal emergency evacuation route from many alternative evacuation routes in the case of multiple scenarios such as the probability of occurrence, the scope of influence, and the risk probability of acute poisoning accidents

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