考虑多米诺效应的液化天然气储罐区池火灾风险分析  

Risk Analysis of Pool Fires in LNG Storage Tank Area Based on Domino Effect

作　　者：周雪[1] 姚安林[1,2] 毛建 韦孟佼 骆吉庆 

机构地区：[1]西南石油大学石油与天然气工程学院,成都610500 [2]油气消防四川省重点实验室,成都610500 [3]中国石油西气东输管道公司,上海200122 [4]西南油气田输气管理处,成都610213

出　　处：《科学技术与工程》2017年第12期308-313,共6页Science Technology and Engineering

基　　金：国家科技支撑计划(2011BAK06B01)资助

摘　　要：针对目前对LNG储罐的风险分析多数仅以单个储罐为研究对象,鲜有考虑储罐间的相互影响这一研究现状。提出将多米诺效应分析引入到LNG储罐区的风险分析当中。首先,对单个LNG储罐进行风险分析;其次,运用固体火焰模型计算各目标储罐接收的热辐射量,求得多米诺效应失效概率,进而对LNG储罐区池火灾进行风险分析;最后,绘制个人风险等值线图,将考虑多米诺效应前后的风险进行对比。实例分析表明,考虑了多米诺效应风险后,储罐区的风险要明显增大。The current risk analysis methods focus on single LNG tank and ignore influences between tanks,so a method with domino effect analysis was proposed to analyze risks of LNG storage tank area.Firstly,the risk analysis of single LNG tank is obtained.Then,the heat radiation received by each tank is calculated by using the solid flame model,and then failure probability of the domino effect is obtained.The risk analysis of pool fires in LNG storage tank area is ascertained.At last,the individual risk contour map is drawn to compare the risk before and after the domino effect.Example analysis verified that the risk of the LNG tank area increases significantly when taking domino effect risk into account.

关 键 词：LNG储罐区 池火灾 多米诺效应 风险分析 

分 类 号：X937[环境科学与工程—安全科学]