Abstract
With the development of chemical industry, petrochemical industry has already occupied an unshakable position in the national economy. Because of its unique advantages, the chemical industry park has greatly facilitated the development of various chemical enterprises. However, with the increase of enterprises in chemical industry parks, the safety management and emergency response of industrial parks become more and more important. Hazardous chemical gas leakage may occur in the production, storage and transportation of chemical products. Once the leakage occurs, it not only pollutes the environment, but also causes a large area of human and livestock poisoning. Therefore, it is very important to study the rule of chemical gas diffusion and make effective simulation. Through the accurate prediction of dangerous chemical gas diffusion, it can provide theoretical basis for the formulation of emergency plans, which can minimize the loss of life and property. In this paper, the research status of leakage and diffusion of dangerous gases at home and abroad is reviewed. Based on the improved Gauss plume model, a diffusion prediction simulation platform for hazardous chemical gas is proposed. Firstly, the several commonly used gas diffusion prediction models are introduced briefly. Secondly, a new prediction model based on Gauss plume model is proposed for the continuous leak of chemical gas. Finally, combined with the geographic information system (GIS), simulation experiment is carried out based on the improved prediction model. The experimental results show that the improved Gaussian plume model is more consistent with the actual diffusion.
