石油化工高等学校学报Issue(1)：84-89,6.DOI:10.3969/j.issn.1006-396X.2014.01.017
天然气管道氮气隔离混气长度研究
Study on the Gas-Mixing Section Length during Nitrogen Replacement of Natural Gas Operation in Gas Pipeline
摘要
Abstract
The gas diffusion coefficient and therefore gas-mixing section length was studied by using one-dimension mathematical model in combination with three different methods for calculating gas diffusion coefficient (Taylor ,Taylor-CW and G .R .I) .In addition ,the predominant factors in affecting the gas-mixing section length were also investigated ,including pipeline length ,diameter and velocity of the flow .And the comparison between the calculation results and field data show that Taylor-CW method can reflect the field practice better .The relative errors of the results for three domestic pipelines are 39.7% ,23 .4% and 22 .0% ,respectively .关键词
天然气管道/氮气隔离/混气长度/现场对比Key words
Natural gas pipeline/Nitrogen gas replacement/Gas-mixing section length/Data comparison分类
能源科技引用本文复制引用
黄启玉,曹鑫鑫,唐骏琪,许琛琛,兰浩..天然气管道氮气隔离混气长度研究[J].石油化工高等学校学报,2014,(1):84-89,6.基金项目
国家自然科学基金项目“油包水型乳状液蜡分子扩散和蜡晶颗粒沉积机理研究”（51374224）。 （）
