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

作　　者：孙立刚 刘少山 王倩冰 郭一凡 李智 张淼 陆世平 陈毅 SUN Ligang;LIU Shaoshan;WANG Qianbing;GUO Yifan;LI Zhi;ZHANG Miao;LU Shiping;CHEN Yi(PipeChina Engineering Technology Innovation Co.,Ltd.,Tianjin 300457,China;China University of Petroleum(Beijing),Beijing 102200,China;Changchun Oil and Gas Transmission Branch,Northeast Company of National Oil and Gas Pipeline Network Group Co.,Changchun Jinlin 130000,China)

机构地区：[1]国家管网集团工程技术创新有限公司,天津300457 [2]中国石油大学(北京),北京102200 [3]国家石油天然气管网集团有限公司东北公司长春输油气分公司,吉林长春130000

出　　处：《石油化工高等学校学报》2025年第2期38-47,共10页Journal of Petrochemical Universities

基　　金：国家管网集团工程技术创新有限公司项目(HX20240051)。

摘　　要：中俄东线某站场过滤分离区为并联管路,由于管内压力和管道布局的不同可能会出现支管流量分配不均的问题,影响过滤效果和整体工作效率。为避免管路偏流,使用计算流体动力学(CFD)方法进行了过滤分离区流量流向研究。结果表明,系统内压力分布、湍流分布、沿程摩阻损失、流体惯性等因素共同影响支管流量分配;在11种并联管路布置方式中,进出口在同侧的轴向进径向出方式3总体上偏流情况最小;正常工况下,在计算范围内偏流情况随汇管直径、支管中心间距的增大而减小;支管堵塞的故障工况会使系统的偏流程度大幅度增大。通过研究得到了并联管路流量分配规律和影响流量分配的主要因素,研究结果有助于指导输气站场的设计与建设。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 

分 类 号：TE832[石油与天然气工程—油气储运工程]