基于Fluent的风向对LPG储罐泄漏扩散规律研究  

Influence of wind direction on LPG tank leakage rule with FLUENT software

作　　者：万宇飞 李立婉 王文光 梁鹏 黄岩 陈正文 Wan Yufei;Li Liwan;Wang Wenguang;Liang Peng;Huang Yan;Chen Zhengwen(CNOOC(China)Ltd.Tianjin Branch,Tianjin,China;Tianjin Institute of China Petroleum Engineering&Construction Project Management Company,Tianjin,China)

机构地区：[1]中海石油(中国)有限公司天津分公司 [2]中油工程项目管理公司天津设计院

出　　处：《石油与天然气化工》2021年第5期98-103,共6页Chemical engineering of oil & gas

基　　金：国家科技重大专项“渤海油田高效开发示范工程”(2016ZX05058004)。

摘　　要：以某LPG储罐为基础,利用Ansys Fluent软件建立符合实际的三维模型,分别模拟了不同风向工况下,储罐泄漏后丙烷扩散规律和爆炸危险区域。结果表明:泄漏后的扩散范围,Y轴方向上为逆风>无风>顺风,X轴方向上为顺风>无风>逆风;在人体呼吸带范围内,丙烷爆炸极限覆盖的区域范围为逆风>无风>顺风;风向的作用改变了爆炸危险区域所在位置;一旦发生泄漏,应根据风向和所处位置,确定逃生路线。在实际中,可以根据计算情况,在储罐周围一定范围内做出标记,确定危险区域和逃离指示标志,为发生泄漏危险时的人员逃生和救援站位提供参考。Based on an LPG storage tank,a 3D model is established with Ansys Fluent software to simulate the diffusion pattern and predict the explosion-hazardous areas after a leakage of propane under different wind direction.The results showed that the diffusion range was in the order of headwind>no wind>downwind,from the longitudinal point of view while the order was downwind>no wind>headwind from the crosswise point of view.In the range of human respiratory zone,the tread of the area covered by propane explosion limit was as follow:downwind>no wind>headwind.The direction of the wind changes the location of the explosion-hazardous areas.In the case of leakage,the escape route should be determined according to the wind direction and the evacuees’particular location.In practice,a mark could be made within a certain range around the storage tank to indicate the hazardous areas and serve as the escape indicator,which would provide a reference for personnel escape and rescue position in the danger of leakage.

关 键 词：FLUENT LPG储罐 丙烷 泄漏 爆炸极限 高压 

分 类 号：TE88[石油与天然气工程—油气储运工程]