拱顶罐收油过程中油气扩散排放的数值模拟

发布时间：2018-03-26 21:11

本文选题：拱顶罐　切入点：装油速度　出处：《石油学报(石油加工)》2017年02期

【摘要】：拱顶罐收油过程中油品蒸发及油气扩散排放规律对环境污染控制及损耗评估具有重要意义。基于VOF模型、扩散传质模型和RNGk-ε湍流模型,对5000m~3拱顶油罐底部装汽油进行数值模拟研究,分析比较了不同装油速度、不同油罐初始油气质量分数下,罐内油气扩散及蒸发损耗规律。结果表明,增加装油速度,汽油蒸发率减小,损耗率变化不大,约为0.022%;增加油罐初始油气质量分数,汽油蒸发率减小,损耗率增大。建议API(美国石油学会)拱顶油罐收油蒸发损耗评估公式中考虑装油速度和初始油气质量分数的影响。
[Abstract]:Oil evaporation and oil / gas diffusion emission are important for environmental pollution control and loss assessment during the oil recovery process of dome tank. Based on VOF model, diffusion mass transfer model and RNGk- 蔚 turbulence model, the results are as follows: 1. The numerical simulation of gasoline filling at the bottom of 5000m~3 dome tank is carried out, and the laws of oil and gas diffusion and evaporation loss in different filling speed and initial oil / gas mass fraction of different tank are analyzed and compared. The results show that the oil filling speed is increased. The evaporation rate of gasoline decreases, but the loss rate does not change much, which is about 0.022. The evaporation rate of gasoline decreases with the increase of the initial oil and gas mass fraction of the tank. It is suggested that the influence of oil loading speed and initial oil / gas mass fraction should be taken into account in the evaluation formula of the evaporation loss of the vaulted oil tank in API (American Petroleum Institute).
【作者单位】：常州大学江苏省油气储运技术重点实验室;上海河图工程股份有限公司;
【基金】：国家自然科学基金项目(51574044) 江苏省高校“青蓝工程”项目(SCZ1409700002) 江苏省油气储运重点实验室项目(SCZ1211200004/004)资助
【分类号】：TE85

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