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建立浮顶罐静止储存状态下的物理及数学模型,采用有限容积法,对不同工况下罐内原油的流动及传热过程进行数值模拟,分析储油液位、环境温度及初始油温对罐内原油温度分布的影响规律。结果表明:罐顶最先形成凝油层,罐壁次之,罐底最慢且随温降进行凝油层生成速率降低;当环境温度及初始油温较高时,可以适当延长储罐安全储存时间。
The physical and mathematical models of the floating roof tank under static storage are established. The finite volume method is used to simulate the flow and heat transfer of the crude oil in the tank under different operating conditions. The oil level, the ambient temperature and the initial oil temperature are analyzed. Influence law of crude oil temperature distribution in tank. The results show that the top of the tank is the first to form the oil layer, the second is the tank wall, and the bottom of the tank is the slowest and the formation rate of the oil layer decreases with the temperature drop. When the ambient temperature and the initial oil temperature are high, the storage safety time .