石油化工高等学校学报2025，Vol.38Issue(2)：38-47,10.DOI:10.12422/j.issn.1006-396X.2025.02.005
中俄东线天然气管道站场过滤分离区并联管路偏流分析
Analysis of Flow Maldistribution of Parallel Pipeline in Filtration Separation Area of China-Russia East Route Natural Gas Pipeline Station
摘要
Abstract
The filtration and separation area of a station on the China-Russia East Route is set as parallel pipelines,and the uneven distribution of branch flow may occur due to the differences in internal pressure and pipeline layout,which affects the filtration efficiency and the overall work efficiency.In order to avoid pipeline bias,the flow direction of the filtration and separation area is studied based on computational fluid dynamics(CFD).Results show that pressure distribution,turbulent flow distribution,frictional resistance loss along the system,fluid inertia and other factors affect the branch pipe flow distribution.Among 11 parallel pipeline configurations,the axial inlet and radial outlet configuration(Type 3)with inlets and outlets on the same side exhibits the least flow maldistribution overall.Under normal working conditions,flow maldistribution decreases with increasing manifold diameter and branch pipe spacing within the calculation range.Fault conditions,such as branch pipe blockages,significantly exacerbate flow maldistribution in the system.It is concluded that the flow distribution rule and the main factors affecting the flow distribution are obtained,which is helpful to guide the design and construction of gas transmission station.关键词
中俄天然气管道/过滤分离区/并联管路/偏流/数值模拟Key words
China-Russia gas pipeline/Filtration and separation zone/Parallel pipelines/Flow maldistribution/Numerical simulation分类
石油、天然气工程引用本文复制引用
孙立刚,刘少山,王倩冰,郭一凡,李智,张淼,陆世平,陈毅..中俄东线天然气管道站场过滤分离区并联管路偏流分析[J].石油化工高等学校学报,2025,38(2):38-47,10.基金项目
国家管网集团工程技术创新有限公司项目(HX20240051). （HX20240051）
