基于FDS的大型原油储罐防火堤内池火灾的数值模拟  

Mathematical Simulation of Pool Fire in Fire Bund of Large Oil Tank Zone Based on FDS

作　　者：李庆功[1,2] 宋文华[1] 陈阵[1] 吕铃钥[1] 冯莉莉[1] 

机构地区：[1]天津工业大学环境与化学工程学院,天津300387 [2]天津市消防总队,天津300100

出　　处：《南开大学学报（自然科学版）》2012年第1期77-82,共6页Acta Scientiarum Naturalium Universitatis Nankaiensis

基　　金：国家自然科学基金(50974096);天津市应用基础及前沿技术研究计划重点项目(10JCZDJC25000)

摘　　要：以某大型原油储备库为例,采用火灾模拟软件FDS对总罐容为106m3的大型原油浮顶罐的罐区防火堤内池火灾事故进行数值模拟.模拟对象为罐区消防救援最不利点处防火堤.燃烧模型采取了FDS设置固定热释放率的方式,热释放率设为1 500 kJ/m2.由模拟结果得出,火焰高度在55 m左右,临近罐壁表面最高温度为160℃左右.随着燃烧趋于稳定,并考虑大气气流的影响,防火堤内池火灾对临近储罐热辐射强度值稳定在25kW/m2左右.The pool fire in fire bund of one large oil tank area,whose total capacity was 106 m3,was simulated by the fire simulation software FDS.The object of simulation was the most unfavorable fire bund for fire rescue.The way of setting fixed heat release rate of FDS was adopted in combustion model,and the heat release rate was set for 1 500 kJ/m2.The simulation results indicated that the height of flame was 55 m and the highest temperature of the surface of adjacent tank was 160 ℃.With the development of fire,the fire behaviour became stable.When the influence of atmospheric flow was considered,the thermal radiation strength value of pool fire in tank bund was about 25 kW/m2 for adjacent tank.

关 键 词：大型原油储罐 防火堤 池火灾 火灾模拟软件FDS 数值模拟 

分 类 号：X932[环境科学与工程—安全科学]