内部爆炸下气相连通管线对相邻储罐的影响研究  

Influence of vapor balance pipeline on adjacent storage tanks under internal explosion

作　　者：王鹏 鲍磊[1,2] 于安峰 WANG Peng;BAO Lei;YU An-feng(SINOPEC Research Institute of Safety Engineering Co.,Ltd.,Shandong Qingdao 266071,China;State Key Laboratory of Safety and Control for Chemicals,Shandong Qingdao 266071,China)

机构地区：[1]中石化安全工程研究院有限公司,山东青岛266071 [2]化学品安全控制国家重点实验室,山东青岛266071

出　　处：《消防科学与技术》2022年第5期604-608,共5页Fire Science and Technology

摘　　要：为研究固定顶储罐内部火灾爆炸的极限工况下,气相连通管线随罐顶位移导致相邻储罐顶发生破裂的风险,对典型储罐内部爆炸过程进行模拟研究,获得爆炸超压随时间变化曲线。针对储罐罐顶气相连通管线直连和π型连接形式,建立有限元模型,分别对爆炸事故工况下储罐顶整体破裂和120°破裂泄压的场景进行模拟研究,计算储罐及连通管线的位移参数及破坏后果。结果表明,储罐顶部整体破裂和120°破裂泄压时,两种连接形式的气相连通管线都不会损坏,但π型连接比储罐直连形式对相邻储罐罐顶的应力作用更小。In order to study the risk of rupture of adjacent tank tops caused by the displacement of vapor balance pipeline under internal explosion of fixed roof tanks, the internal explosion process of typical tanks was simulated and the variation curve of explosion overpressure with time was obtained. According to the direct connection and π connection forms of vapor balance pipeline on the tank top, the finite element model is established to simulate the scenarios of overall fracture and 120°fracture pressure relief of the tank top under the working condition of explosion accident, and the displacement parameters and damage consequences of the tank and connecting pipeline are calculated. The results show that when the overall fracture and 120°fracture pressure relief of the tank top, the vapor balance pipeline of the two connection forms will not be damaged, but the π connection is better than the direct connection of storage tank.

关 键 词：内部爆炸 气相连通 储罐 管线 安全设计 

分 类 号：X937[环境科学与工程—安全科学] X913.4