大型多组分天然气管网系统稳态组分分布模型  

Component distribution model in large-scale multi-component natural gas transmission pipeline network system

作　　者：薛向东 宋永红[1] 张博 朱峰 阎涛 XUE Xiangdong;SONG Yonghong;ZHANG Bo;ZHU Feng;YAN Tao(School of Software Engineering,Xi'an Jiaotong University,Xi'an 710049,China;PipeChina Institute of Science and Technology,Langfang 065000,China;PipeChina Construction and Management Company,Langfang 065000,China)

机构地区：[1]西安交通大学软件学院,陕西西安710049 [2]国家管网集团科学技术研究总院分公司,河北廊坊065000 [3]国家管网集团建设项目管理公司,河北廊坊065000

出　　处：《石油工程建设》2023年第6期6-11,共6页Petroleum Engineering Construction

基　　金：国家石油天然气管网集团有限公司科学研究与技术开发项目“油气管网在线仿真平台研发及应用(一期)”(SSCC202104)。

摘　　要：随着“全国一张网”油气体制改革理念的提出,混输管网将成为未来天然气管网的发展趋势之一。来自不同气源、具有不同组分的天然气将掺杂在同一张管网中输送,使得管网中天然气组分占比难以确定。为满足管网精准调控的需求,准确掌握管网气体组分运移过程,提出了天然气管网稳态组分占比计算模型。模型包含两个约束方程,基于管网整体与全部组分建立矩阵并直接求解,可以得到所有组分在管网中的分布情况。基于提出的稳态管网组分占比计算模型,编制了8节点任意结构稳态天然气管网组分占比计算程序,采用国外某商业软件进行验证,模型平均误差低于0.6%。Due to the idea of a shared national pipeline network for oil and gas system reform,a mixed natural gas transmission pipeline network will become a trend in the future.Natural gas from different gas sources with different components will be mixed in the same pipeline network,making it difficult to determine the ratio of natural gas components in the pipeline network.In order to meet the demand for precise control of the pipeline network and accurately grasp the migration process of gas components in the pipeline network,a model for calculating the steady-state component ratio in the natural gas pipeline network is proposed.The model contains two constraint equations and can be directly solved by establishing matrixes based on the overall pipeline network and all components.Therefore,the distribution of all components in the pipeline network can be obtained.Based on the model for calculating the steady state component ratio in the natural gas pipeline network,a program for calculating the ratio of steady-state components in the natural gas pipeline network with an 8-node arbitrary structure is developed and verified by foreign commercial software.The average error of the model is less than 0.6%.

关 键 词：天然气管网 管网仿真 组分跟踪 

分 类 号：TE832[石油与天然气工程—油气储运工程]