10×10~4 m^3浮顶罐罐壁附近原油温度分布数值模拟  

Numerical simulation of crude oil temperature distribution near the tank wall of 10×10~4 m^3 floating-roof tank

作　　者：刘佳[1,2] 侯磊[1] 陈雪娇 

机构地区：[1]中国石油大学(北京)油气管道输送安全国家工程实验室/城市油气输配技术北京市重点实验室,北京102249 [2]太原科技大学化学与生物工程学院,山西太原030021

出　　处：《油气储运》2015年第3期248-253,共6页Oil & Gas Storage and Transportation

基　　金：国家自然科学基金项目"胶凝含蜡原油形变随加载条件变化的规律研究";51174218

摘　　要：我国石油储备多采用10×104 m3浮顶罐,为了保证浮顶自由升降,必须掌握罐壁附近原油温度分布。为此,建立了双盘式浮顶罐在加热过程中的二维模型,应用计算流体力学软件Fluent,模拟18种工况下罐内原油流场及罐壁附近原油温度分布,分析储油高度和加热蒸汽量的影响,结果表明:原油在罐内的运动由尺度不同的涡旋组成,罐壁附近存在0.2 m厚度的热边界层。该研究深化了业内对储罐加热过程中传热传质的研究,对大型储罐安全经济运行具有重要的指导意义。10×10^4 m^3 floating-roof tank is widely used for oil storage in China. In order to ensure the free lifting of floating roof, it is necessary to recognize the temperature distribution of oil near the tank wall. Therefore, a 2D model of dual-deck floating-roof tank in heating process is established. The computational fluid dynamics software Fluent is used to simulate flow field of crude oil in tank and oil temperature distribution near the tank wall under 18 conditions and analyze the influence of oil level and amount of steam. Results show that the movement of crude oil in tank is composed of vortexes in different scales and thermal boundary layer with thickness of 0.2 m exists near the tank wall. This research deepens the study on heat and mass transfer in the process of tank heating and has valuable guiding significance for the safe and economic operation of large-scale storage tanks.

关 键 词：浮顶罐 自然对流 蒸汽加热 流场 温度场 数值模拟 

分 类 号：TE821[石油与天然气工程—油气储运工程]