摘要
针对LNG储罐发生泄漏易造成安全事故的问题,使用化学品风险评估模拟分析软件safer trace建立了LNG储罐泄漏事故模型,模拟发生泄漏、闪火、蒸汽云爆炸及池火的4种事故工况,定量分析了LNG泄漏后发生火灾的热辐射影响范围和爆炸超压波的影响范围,对比不同风速条件下事故的影响能力,并确定了LNG储罐与周边设施的最小安全距离为25 m。
Leakage occurring in LNG storage tanks easily brings about plenty of safety accidents. So, a model of leakage accidents is developed by means of the risk assessment software called Safer Trace. In this model, four accidents of leakage, flash fire, vapor cloud explosion, and pool fire are simulated. The scope of affecting thermal radiation and explosive overpressure wave from fire disasters after LNG leakage is analyzed. Furthermore, the ability of affecting accidents under different wind speed is analyzed. Finally,the minimum safe distance between storage tank and surrounding environment is defined.
出处
《天然气技术与经济》
2016年第4期47-49,83,共3页
Natural Gas Technology and Economy
关键词
LNG储罐
泄漏
热辐射
池火
安全距离
LNG storage tank
leakage
thermal radiation
pool fire
safe distance
