石油化工高等学校学报2017，Vol.30Issue(1)：92-96,5.DOI:10.3969/j.issn.1006-396X.2017.01.018
冷热原油长距离顺序输送动态传热特性数值研究
Numerical Study on Dynamic Heat Transfer Characteristics of Cold and Hot Crude Oil in Long Distance Transportation
摘要
Abstract
Cold and hot crude oil orderly transportation is very strict to the temperature field of the soil,which is also the key for the hot oil to enter the station safely after the cold oil is transported.Based on heat transfer and fluid dynamics,the governing equations of flow and heat transfer of buried pipelines have been established,and the numerical simulation of the dynamic change process of cold and hot crude oil orderly transportation process along the pipeline in different axial position of the oil temperature and soil temperature field have been done.The results show that with the alternating cycle operation of temperature of the outbound crude oil,there is a periodic variation in the oil temperature of different locations along the pipeline and a certain range around the soil temperature field but a certain time or space lag.For the low throughput operation of the pipeline,more than a certain distance,the transmission temperature tends to be consistent.There is a main factor which should be considered in the pipeline safe operation plan that in the process of hot-cold oil batch transportation,hot oil inlet temperature drops to a minimum which is affected by the previous cold oil.关键词
长输管道/冷热原油/顺序输送/动态传热Key words
Long pipeline/Cold and hot crude oil/Order delivery/The dynamic heat transfer分类
能源科技引用本文复制引用
青树勇,代卿,郭鸿雁,杜明俊,崔奇,扬子宁..冷热原油长距离顺序输送动态传热特性数值研究[J].石油化工高等学校学报,2017,30(1):92-96,5.基金项目
中国石油工程设计公司管道技术改进项目(2016JG-13). （2016JG-13）
