Study Of Leakage And Diffusion Simulation Of Hazard Chemical Substance

Hazardous chemical substance is one of the most reasons, which causes typical accidents. With the rapid development of national economy, petrol-chemical industry has become mainstay industry than any more. Chemical substance has more relation with the living of people, but the safety problem caused by hazardous chemical substance has become more outstanding. In order to rapidly and effectively predicting the diffusion area of the leakage Chemical, and giving corresponding emergency decisions, we make a research on The System of Leakage and Diffusion Simulation of Hazard Chemical Substance.The important leakage diffusion accidents, which happened in the field of chemical industry in our country have been analyzed with the method of statistics, through consulting documents and field research. On the basis of analyzing and summarizing a large number of typical leakage diffusion accidents' cases in chemical and petro-chemical process, it has been put forward accident mechanisms and related conditions, accident characteristics and effect factors using of the accident cause theory. The typical accident case database is established. This thesis is intended to study and analyze the advantages and disadvantages of the recent chemical substance diffusion simulation method, which includes experience formula, diffusion models and numerical simulation. The conclusion is that it is more suitable to adopt the diffusion models in the accident emergency response. And on this basis, according to the current practical situation, basic principle, basic task and rescue characteristic of emergency rescue have been explained, and the emergency responding system of accidents and the emergency monitoring system are proposed. For the sake of convenient application, computer software for leakage diffusion simulation of hazardous chemical substance is developed which can provide great assistance to the decision-making of emergency response and reach the target of reducing the damage of the life, property and environment to the smallest degree using VB 6.0. Finally, the computer is used to simulate and analysis 2 case, and predict the density distribution and the influential...