某LPG槽罐车爆炸事故后果模拟分析

为了液化石油气(LPG)的储运安全,以某LPG槽罐车重大爆炸事故为实例,探讨了此次爆炸事故的原因及性质,并利用ALOHA软件,重点对此次事故泄漏后引发的沸腾液体扩展为蒸气爆炸(BLEVE)、蒸气云爆炸(UVCE)两种事故后果进行模拟,定量给出事故危害范围与危害等级,同时通过Google Earth软件将模拟结果可视化,...

Simulation analysis of consequences of LPG tanker truck explosion accident

For the safety of LPG in storage and transportation, taking a major explosion accident of LPG tank truck as an example, this paper discusses the causes and properties of the explosion accident, and uses ALOHA software to simulate the consequences of boiling liquid expansion to vapor explosion (BLEVE) and vapor cloud explosion (UVCE) caused by the leakage of the accident, and quantitatively gives the scope and risk factors of the accident. At the same time, through Google Earth software visualizes the simulation results, and puts forward corresponding suggestions and measures for different levels of dangerous areas, in order to provide certain theoretical reference and technical support for the emergency rescue and prevention of such accidents. Then, the simulation results are compared with the scene after the accident, and it is found that the simulation results are consistent with the facts. Finally, by exploring the influencing factors of the accident consequences, it is known that the on-site wind speed, relative humidity and other environmental factors are unfavorable to the development of the accident, which are the main factors causing serious consequences of the accident.