周期性边界条件对浮顶储罐原油传热过程的影响规律

doi:10.11949/j.issn.0438-1157.20160361

化工学报 ›› 2016, Vol. 67 ›› Issue (9): 3640-3650.DOI: 10.11949/j.issn.0438-1157.20160361

周期性边界条件对浮顶储罐原油传热过程的影响规律

孙巍¹, 成庆林¹, 王沛迪¹, 李玉春², 孙海英²

1 东北石油大学提高油气采收率教育部重点实验室, 黑龙江大庆 163318;
2 大庆油田工程有限公司, 黑龙江大庆 163000

收稿日期:2016-03-28 修回日期:2016-05-10 出版日期:2016-09-05 发布日期:2016-09-05
通讯作者: 成庆林
基金资助:
国家自然科学基金项目（51534004）；黑龙江省普通高校科技创新团队基金项目（2009td08）；东北石油大学研究生创新科研项目（YJSCX2015-009NEPU）。

Effect of periodic boundary conditions on heat transfer process of crude oil in floating roof storage tank

SUN Wei¹, CHENG Qinglin¹, WANG Peidi¹, LI Yuchun², SUN Haiying²

1 Key Laboratory of Enhanced Oil & Gas Recovery, Ministry of Education, Northeast Petroleum University, Daqing 163318, Heilongjiang, China;
2 Daqing Oilfield Engineering Co., Ltd., Daqing 163000, Heilongjiang, China

Received:2016-03-28 Revised:2016-05-10 Online:2016-09-05 Published:2016-09-05
Supported by:
supported by the National Natural Science Foundation of China (51534004), the Foundation for University Sci-tech Innovation Teams in Heilongjiang Province (2009td08) and the Northeast Petroleum University Innovation Foundation for Postgraduate (YJSCX2015-009NEPU).

摘要/Abstract

摘要：

随着石油储备需求的增加，油罐规模正向大型化以及能适应极限工况的方向发展。准确掌握罐内油品温度场的变化规律，对于保障油库安全经济运行具有重要意义。针对太阳辐射、大气温度等储罐环境的周期性变化条件，运用传热学相关理论，建立了大型双盘浮顶储罐非稳态传热过程的理论模型，通过对模型区域进行离散化得到边界节点的向前差分方程，在确定罐内原油物性参数、储罐传热系数以及边界热通量的基础上，研究得出储罐原油温度场的数值模拟方法。对大庆某10×10⁴ m³浮顶储罐的应用分析表明，罐顶温降速率随着太阳辐射强度以及大气温度的降低而增大；罐壁温降速率受太阳辐射影响较小，随大气温度的降低而增大；罐底近似于绝热，温降速率受外界环境影响较小，研究结果可为优化大型浮顶罐的储存工艺设计及生产管理提供一定的理论支持。

关键词: 周期性边界, 石油, 传热, 数值模拟

Abstract:

With the increase in demand for oil storage,the scale of tanks are developing towards the direction of large scale and better adaptability to extreme working conditions. The change of oil temperature field inside the tank should be accurately grasped, which is of great significance to guarantee safe and economical operation of oil depot. Aiming at the periodic change conditions of tank ambient conditions such as solar radiation, atmospheric temperature and etc., a theoretical model of the unsteady-state heat transfer process of large double-deck floating roof tank is established by using the theory of heat transfer, and the forward difference equations of boundary point are obtained by model region discretion. On basis of determining the physical properties of crude oil in the storage tank, heat transfer coefficient of the tank as well as the heat flux density of boundary, the numerical stimulation method of temperature field in the tank can be studied. The analysis and application of a 10×104 m³ floating roof storage tank in Daqing has shown that the temperature drop rate increases with the decrease of the solar radiation intensity and the atmospheric temperature. The effect of solar radiation on temperature drop rate of tank shell is small, which increases with the decrease of atmospheric temperature. The tank bottom is approximate to adiabatic state and the effect of the external environment on temperature drop rate is small. The results can provide theoretical support to optimize the storage process design and manufacturing management of large floating roof tanks.

Key words: periodic boundary, petroleum, heat transfer, numerical simulation

中图分类号:

TE821

孙巍, 成庆林, 王沛迪, 李玉春, 孙海英. 周期性边界条件对浮顶储罐原油传热过程的影响规律[J]. 化工学报, 2016, 67(9): 3640-3650.

SUN Wei, CHENG Qinglin, WANG Peidi, LI Yuchun, SUN Haiying. Effect of periodic boundary conditions on heat transfer process of crude oil in floating roof storage tank[J]. CIESC Journal, 2016, 67(9): 3640-3650.

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周期性边界条件对浮顶储罐原油传热过程的影响规律

Effect of periodic boundary conditions on heat transfer process of crude oil in floating roof storage tank

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