弱顶结构立式拱顶油罐爆炸超压评估研究  

Research on Explosion Overpressure Assessment of Vertical Doom Roof Tank

作　　者：徐磊 李阳超 雍歧东 刘鹏[3] 钟建龙 周惊涛[5] 段美满 

机构地区：[1]重庆煤科院,重庆400039 [2]中国人民解放军陆军勤务学院,重庆401331 [3]中国人民解放军620061部队,青海西宁810008 [4]中国人民解放军65121部队,吉林吉林132202 [5]中国人民解放军78479部队,四川成都610083 [6]重庆市安全生产科学研究有限公司,重庆401331

出　　处：《天然气与石油》2017年第6期117-122,共6页Natural Gas and Oil

基　　金：国家自然科学基金项目(51704301);重庆市研究生科研创新项目(CYS 15235)

摘　　要：为预测具有弱顶结构的立式拱顶油罐发生爆炸时外场超压强度,对油罐库区安全规程制定提供一定参考,采用模拟比例法和TNO多能法对3 000 m^3弱顶结构立式拱顶油罐内部爆炸时外场空间冲击波超压值进行了预测,且针对TNO多能法在使用时选择爆炸初始强度的主观性和盲目性问题,提出了用模拟实验的方法来确定爆炸初始强度的新思路。通过模拟实验并依据TNO多能法比例距离计算公式,将实验值换算为相应3 000 m^3弱顶结构立式拱顶油罐外场空间实际距离处的爆炸超压值,其值与TNO多能法评估结果近似。说明通过模拟实验确定爆炸初始等级后的TNO多能法预测结果较为准确,而模拟比例法只适合评估油罐外较近距离处的爆炸超压,当3 000 m^3弱顶结构立式拱顶油罐在半罐储油条件时,对应TNO多能法爆炸初始等级为5级。通过对弱顶结构立式拱顶油罐爆炸超压进行评估,为油库罐区安全距离设计和事故应急预案制定提供参考。In order to predict the external overpressure strength of vertical doom-roof oil tank during explosion and provide reference for safety regulation in tank farm,the external field overpressure produced by the 3 000 m^3 vertical doom roof oil tank internal explosion is estimated by simulation scale method and TNO multi-energy method. And aimed at the subjectivity and the blindness of selecting the initial explosionintensity of multi-energy method,a new idea is brought up which is based on experiment to decide the initial explosion intensity. At the same time,the experimental value can be converted to the 3 000 m^3 vertical doom roof oil tank external field overpressure value at corresponding positions by TNO multi-energy method’s scaled distance equation,which is similar to the results of TNO multi-energy method. It is indicated that the prediction by TNO multi-energy method is accurate,while the simulation scale method is only suitable to estimate the overpressure field closed to the tank. When the oil storage condition is half of the 3 000 m^3 vertical doom roof tank,the initial explosion intensity to TNO multi-energy method is level 5.Through assessment on explosion overpressure of vertical doom tank, it provides reference for the preparation of emergency plan and safety spacing design at oil tank farm.

关 键 词：立式拱顶油罐 储油 爆炸 超压 评估 

分 类 号：TE972[石油与天然气工程—石油机械设备]