LPG球罐泄漏事故后果数值模拟

发布时间：2018-01-09 23:26

本文关键词：LPG球罐泄漏事故后果数值模拟　出处：《油气储运》2017年02期 　论文类型：期刊论文

更多相关文章： LPG 球罐 PHAST软件 泄漏 影响范围

【摘要】：液化石油气(Liquefied Petroleum Gas,LPG)中含有一定量的H_2O、HCl及H_2S等气体物质,在露点温度下会形成湿硫化氢环境,容易导致储罐罐体发生腐蚀开裂,具有极大的危险性。以中国南方某400 m~3的LPG球罐为研究对象,采用PHAST事故后果模拟软件,分别模拟泄漏孔径为50 mm、100 mm及150 mm的LPG球罐泄漏的危害和影响范围。模拟结果表明:在上述3种泄漏孔径下,蒸气云扩散的最大距离分别为16.0 m、29.5 m、42.0 m,喷射火影响的最大距离分别为20.0 m、37.5 m、53.5 m,闪燃影响最大距离分别为16.8 m、31.8 m、46.0 m,蒸气云爆炸影响距离为462.0 m。模拟得出的泄漏事故的危害和影响范围,可为今后不同泄漏区域的应急方案制订提供参考。
[Abstract]:There is a certain amount of H2O-HCl and H2s in liquefied petroleum gas (LPG) in Liquefied Petroleum Gas Gas (LPGs). Wet hydrogen sulfide (H2S) will be formed at dew point temperature, which can easily lead to corrosion and cracking of tank body, which is very dangerous. A 400mm3 LPG spherical tank in southern China is taken as an object of study. The leakage aperture of 50 mm was simulated by PHAST simulation software. The harm and influence range of the leakage of 100mm and 150mm LPG spherical tanks. The simulation results show that the maximum distance of vapor cloud diffusion is 16.0 m under the above three leak apertures. The maximum distance of impact of jet fire is 20.0 mm ~ 37.5 m ~ (-1) 53.5 m, and that of flash combustion is 16.8 m. The influence distance of vapor cloud explosion is 462.0 m. The damage and influence range of the simulated leakage accident are obtained. It can provide reference for the emergency plan of different leakage areas in the future.
【作者单位】：中国铁道科学研究院;
【基金】：中国铁路总公司资助项目“铁路危险货物安全保障技术深化研究”,2016X007-F
【分类号】：TE88
【正文快照】： YU ZhidongChina Academy of Railway SciencesLPG作为燃料和重要的化工原料,具有资源丰富、价格低、产物污染少及纯度高等优点,因此LPG在工业生产和日常生活中应用广泛。然而,LPG也存在一定的安全性问题[1-5]。由于LPG是在油品加工工艺过程中产生的,其含有一定量的H2O、HCl及

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