热输原油管道总传热系数的研究及应用  

Research and Application of Total Heat Transfer Coefficient of Heating Crude Oil Pipeline

作　　者：万军 WAN Jun(East China Design Institute of PipeChina Engineering Technology Innovation Co.,Ltd.,Xuzhou 221008,China)

机构地区：[1]国家管网集团工程技术创新有限公司华东设计院,江苏徐州221008

出　　处：《管道技术与设备》2022年第5期15-18,共4页Pipeline Technique and Equipment

摘　　要：为研究加热输送原油管道总传热系数的计算,确定仪长线的总传热系数,对仪长线沿线各段四季分4次采用探针法测量现场土壤导热系数,结果基本在0.9~2.0 W/(m·℃)之间。考虑到仪长线管径从864 mm到406 mm,采用分段式计算方法,根据苏霍夫温降公式、油流至管内壁放热系数α_(1)的计算公式以及热平衡方程,计算出各管段的总传热系数,并确定了沿线各段总传热系数为2.0~3.0 W/(m^(2)·℃)。根据仪长线运行参数,利用苏霍夫温降公式,进行投产后管道“总传热系数”的反算,结果表明投产初期大冶—武汉段数值比设计值大60%。In order to study heating crude oil pipeline total heat transfer coefficient computation,the total heat transfer coefficient of the Yi-Chang pipeline was determined,the probe method was used to the Yi-Chang pipeline each section of four seasons to measure the scene soil thermal conductivity along the route in four times,the results were in the range of 0.9~2.0 W/(m·℃).Considering that the diameter of the Yi-Chang pipeline is from 864 mm to 406 mm,using the sectional type computational method,according to Su Hove temperature drop formula,the oil stream to the tube endophragm formula of heat-transfer coefficientα_(1) as well as the thermal equilibrium equation,the total heat transfer coefficient of each section was calculated,the total heat transfer coefficient of each section along the route is in the range of 2.0~3.0 W/(m^(2)·℃).According to the operational factor of Yi-Chang pipeline and using Su Hove temperature drop formula,“total heat transfer coefficient”of pipeline after operation was inverse calculated,the results show that at the initial stage of production,the value of Daye-Wuhan section is 60%higher than the design value.

关 键 词：热输原油管道 总传热系数 土壤导热系数 探针法 

分 类 号：TE832[石油与天然气工程—油气储运工程]