架空输油管道泄漏危害研究
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摘要
当架空管道发生小孔泄漏事故时,由于泄漏产生的油品和蒸发产生的石油蒸气云遇明火会发生燃烧和爆炸,对周边地区造成严重的经济损失和人员伤亡。因此,有必要对泄漏的不同阶段进行研究,确定不同阶段的危险性,得出事故不同阶段应急方案。以Fluent模拟软件为基础建立三维空间架空管道泄漏模型,研究不同孔径和风速对油池和其产生的石油蒸气云的扩散影响,得出油蒸气浓度扩散规律。
When a small hole leakage accident occurs in an overhead pipeline,oil and vapor generated by the leak will burn and explode as exposed to an open flame,causing serious economic losses and casualties to the surrounding area.Therefore,it is necessary to study the different stages of the leakage,determine the dangers of different stages,and obtain the emergency plan at different stages of the accident.Based on the Fluent simulation software,a 3D space overhead pipeline leakage model was established to study the diffusion effects of oil pools and oil vapor clouds generated by different pore sizes and wind speeds,and the diffusion law of oil vapor concentration was obtained.
When a small hole leakage accident occurs in an overhead pipeline,oil and vapor generated by the leak will burn and explode as exposed to an open flame,causing serious economic losses and casualties to the surrounding area.Therefore,it is necessary to study the different stages of the leakage,determine the dangers of different stages,and obtain the emergency plan at different stages of the accident.Based on the Fluent simulation software,a 3D space overhead pipeline leakage model was established to study the diffusion effects of oil pools and oil vapor clouds generated by different pore sizes and wind speeds,and the diffusion law of oil vapor concentration was obtained.
引文
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[2]He B,Jiang X S,Yang G R,et al.A numerical simulation study on the formation and dispersion of flammable vapor cloud in underground confined space[J].Process Safety and Environmental Protection,2017,107:1-11.
[3]Zhou J,Reniers G.Petri-net based cascading effect analysis of vapor cloud explosions[J].Journal of Loss Prevention in the Process Industries,2017,48:118-125.
[4]吴国忠,王迪,李宏佳,等.埋地输油管道泄漏过程传热特性[J].沈阳大学学报(自然科学版),2018(1):52-57.
[5]马跃,王岳.埋地管道泄漏油品扩散范围模拟计算[J].北京石油化工学院学报,2012,20(4):24-28.
[6]王翔,王世杰,张玉,等.生物堆修复石油污染土壤的研究进展[J].环境科学与技术,2012,35(6):94-99.
[7]苏丽娜,马晓利,武海英,等.土壤中石油类污染物迁移转化及分析方法研究进展[J].化学试剂,2016,38(11):1071-1076.
[8]吴国忠,王宇,齐晗兵,等.地下输油管道泄漏污染物迁移与残留实验研究进展[J].当代化工,2015(3):510-512.
[9]钱程,穆文平,邢渊,等.某气田石油类污染物运移数值模拟研究[J].环境工程,2016,34(4):68-72.
[10]景海泳,余建星,杜尊峰,等.海底管道水下气体扩散FLUENT仿真分析[J].海洋技术学报,2012,31(3):82-85.
[11]李泽,马贵阳.埋地不同压力管道泄漏的数值模拟[J].辽宁石油化工大学学报,2015(1):24-28.
[12]李朝阳,马贵阳,刘亮.埋地输油管道泄漏油品扩散模拟[J].油气储运,2011,30(9):674-676.
[13]王岳,马跃,史俊杰,等.泄漏油品在不同颗粒直径土壤中扩散范围计算[J].石油化工高等学校学报,2012,25(6):56-58.