变径管道对冷热原油顺序输送混油的影响  

Influence of reduced pipeline on the batch transportation of cold-hot contaminated crude oil

作　　者：鹿钦礼[1] 杜明俊 马贵阳[1] 王海峰 寒德明[3] 

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 [2]中国石油集团工程设计有限责任公司华北分公司,河北任丘062552 [3]中国石油管道公司沈阳输油分公司,辽宁沈阳110031

出　　处：《油气储运》2011年第3期183-186,4,共4页Oil & Gas Storage and Transportation

摘　　要：针对管道沿线落差较大或变径时,水力瞬变对冷热原油顺序输送混油比例存在影响的问题,基于顺序输送混油理论,建立了冷热原油顺序输送混油控制方程。借助FLUENT软件对冷热原油途经变径管道水力瞬变过程进行数值计算,分析了输送顺序和流速对混油浓度的影响。研究表明:当冷热原油顺序流经渐缩管道时,混油长度增长较快,当冷热原油流经突扩管道时,混油长度增长速率降低。无论渐缩管道还是突扩管道,与前行俄罗斯油后行大庆油的输送方式相比,采用前行大庆油后行俄罗斯油的输送方式形成的混油段都较长,且突扩管段连接处和上游轴向各截面的平均混油比例波动较大。The governing equation is established regarding the effect of hydraulic transient on the contamination ratio of the cold-hot contaminated crude oil batch transportation due to reduced pipeline or elevation. FLUENT software is applied to simulate the cold-hot crude oil passing through the reduced pipeline where the effect of the transportation sequence and the velocity are investigated. The study shows that the contamination length grows faster in the reduced pipeline,while the length grows slower in the expanded pipeline. The contamination lengths are large for both cases of Russian Oil first and Daqing Oil first. And,the contamination ratio vibrates at the joint location of an expanded pipeline with regard to the cross-sections on upstream pipeline.

关 键 词：原油管道 水力瞬变 冷热原油 顺序输送 混油浓度 数值计算 

分 类 号：TE863[石油与天然气工程—油气储运工程]