Risk Analysis of Leakage Accidents in Road Transport of Hazardous Chemicals
In recent years,with the increasing demand for the production,use and transportation of hazardous chemicals,road transportation of hazardous chemicals has become a major concern in the transportation process.Once leakage occurs in the transportation process,it is very easy to cause fire and explosion accidents.In order to prevent and control the accident hazards caused by the leakage of hazardous chemicals,ALOHA was used to quantitatively simulate the thermal radiation intensity and toxic gas diffusion range after the leakage of road transportation of LPG storage tanks.The results show that the vapor cloud explosion accident caused by the leakage has the widest impact range and is the most destructive,which may cause shock waves of varying degrees to buildings and personnel in the annular area with a radius of 856 m.At the same time,it was found that there was a negative correlation between the ambient wind speed and the poison gas diffusion range.ALOHA was used to observe the range of gas leakage concentration over time at various points.ALOHA simulation can effectively reduce accident losses and provide theoretical guidance and technical support for emergency rescue.
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