城镇埋地燃气管道泄漏事故模拟及风险分析
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摘要
随着我国埋地燃气管道数量不断地增加,其经济重要性也日益提升,与之对应的安全问题也越来越多。本文以城镇地区某处燃气管道发生泄漏事故为例,分析验证了事故发生的原因,并用ALOHA(Areal Locations of Hazardous Atmospheres)软件对事故后果(喷射火、气云爆炸)进行模拟,计算出个人风险值,应用最低合理可行原则对个人风险值进行评估,最后将风险值进行可视化处理,从而便于相关单位采取风险防控措施,给管道应急管理提供依据。
As the number of buried gas pipelines in China continues to increase,its economic importance is also increasing,and the corresponding security problems are also increasing.This paper takes the gas pipeline leakage accident in a certain area in the urban area as an example,analyzes and verifies the cause of the accident,and uses ALOHA(Areal Locations of Hazardous Atmospheres) software to simulate the accident consequences(jet fire,gas cloud explosion) and calculate personal risk value,apply the As low As Reasonable Practicable to evaluate the individual risk value,and finally visualize the risk value,so that the relevant companies can take risk prevention and control measures to provide basis for pipeline emergency management.
As the number of buried gas pipelines in China continues to increase,its economic importance is also increasing,and the corresponding security problems are also increasing.This paper takes the gas pipeline leakage accident in a certain area in the urban area as an example,analyzes and verifies the cause of the accident,and uses ALOHA(Areal Locations of Hazardous Atmospheres) software to simulate the accident consequences(jet fire,gas cloud explosion) and calculate personal risk value,apply the As low As Reasonable Practicable to evaluate the individual risk value,and finally visualize the risk value,so that the relevant companies can take risk prevention and control measures to provide basis for pipeline emergency management.
引文
[1] Shao H,Duan G.Risk Quantitative Calculation and ALOHA Simulation on the Leakage Accident of Natural Gas Power Plant [J].Procedia Engineering,2012,45(2):352～359.
[2] 马庆春,张博.基于ALOHA的城市燃气管道泄漏火灾爆炸影响区域的数值模拟[J].安全与环境工程,2016,23(02):75～79.
[3] 相艳景,刘茂,张永强,邬长城.ALOHA软件模拟分析环氧乙烷储罐泄漏事故[J].中国公共安全(学术版),2008(Z1):49～53.
[4] 郭晓晓,蔡治勇,梁开武,等.天然气储罐蒸气云爆炸事故个人风险分析[J].中国新技术新产品,2015,(1):190～191.
[5] 李剑峰,刘茂,王东东,等.公共场所泄漏、中毒事故的个人风险水平的估计[J].中国安全科学学报,2007,(12):13～18,196.
[6] 高建明,王喜奎,曾明荣.个人风险和社会风险可接受标准研究进展及启示[J].中国安全生产科学技术,2007,(3):29～34.
[7] 相艳景,刘茂,张永强,等.ALOHA软件模拟分析环氧乙烷储罐泄漏事故[J].中国公共安全(学术版),2008,(Z1):49～53.
[2] 马庆春,张博.基于ALOHA的城市燃气管道泄漏火灾爆炸影响区域的数值模拟[J].安全与环境工程,2016,23(02):75～79.
[3] 相艳景,刘茂,张永强,邬长城.ALOHA软件模拟分析环氧乙烷储罐泄漏事故[J].中国公共安全(学术版),2008(Z1):49～53.
[4] 郭晓晓,蔡治勇,梁开武,等.天然气储罐蒸气云爆炸事故个人风险分析[J].中国新技术新产品,2015,(1):190～191.
[5] 李剑峰,刘茂,王东东,等.公共场所泄漏、中毒事故的个人风险水平的估计[J].中国安全科学学报,2007,(12):13～18,196.
[6] 高建明,王喜奎,曾明荣.个人风险和社会风险可接受标准研究进展及启示[J].中国安全生产科学技术,2007,(3):29～34.
[7] 相艳景,刘茂,张永强,等.ALOHA软件模拟分析环氧乙烷储罐泄漏事故[J].中国公共安全(学术版),2008,(Z1):49～53.