渗流对海底管道非稳态传热影响的数值研究  

Numerical Study on Influence of Seepage Flow on Unsteady Heat Transfer in the Submarine Pipeline

作　　者：邰忠英[1] 申龙涉[1] 杜明俊[1] 张春生[1] 许丹[1] 

机构地区：[1]辽宁石油化工大学石油天然气工程学院,辽宁抚顺113001

出　　处：《当代化工》2011年第2期168-170,共3页Contemporary Chemical Industry

摘　　要：基于多孔介质传热理论,建立海底土壤水热耦合控制方程。分析了海水温度和渗流速度对热油管道非稳态传热规律的影响,研究表明:海水渗流速度相对越大,管道周围土壤温度场在渗流方向的热作用半径越长,垂直渗流方向的热作用半径越短,且随着渗流速度的增大,整个土壤区域平均温度升高,土壤温度场达到稳定所用时间降低。在其他条件不变的情况下,海水温度越高,渗流方向热作用半径越小,垂直于渗流方向的热作用半径越大。模拟结果与相关文献吻合较好,可为工程实际应用提供一定的理论指导。Based on the theory of porous media heat transfer, submarine soil moisture-heat coupling equation was established. Influences of sea water temperature and seepage flow rate on unsteady heat transfer in the hot oil pipeline were analyzed. The results show that： the relatively greater the see water seepage flow rate is, the longer the radius of the thermal effect in the seepage flow direction of soil temperature field around the pipeline, the shorter the radius of thermal effect in vertical direction to the seepage flow direction, and with the flow velocity increases, average temperature throughout the soil region increases, the time that the soil temperature reaches to stable state decreases.

关 键 词：渗流 海底管道 非稳态传热 数值模拟 

分 类 号：TE832[石油与天然气工程—油气储运工程]