大型天然气管网系统在线仿真方法及软件开发  

Online simulation method and software development of large-scale natural gas pipeline network system

作　　者：李长俊 张员瑞 贾文龙 仇柏林 何杰 王硕 LI Changjun;ZHANG Yuanrui;JIA Wenlong;QIU Bolin;HE Jie;WANG Shuo(Petroleum Engineering School,Southwest Petroleum University)

机构地区：[1]西南石油大学石油与天然气工程学院,四川省成都市610500

出　　处：《油气储运》2022年第6期723-731,共9页Oil & Gas Storage and Transportation

基　　金：国家自然科学基金面上项目“X70/X80钢掺氢天然气输送管道氢脆失效机理及安全服役能力研究”,52074238。

摘　　要：天然气管网系统仿真技术是管网系统设计方案论证、管输计划制定、运行方案优化、应急保障决策的核心技术。基于质量守恒、动量守恒、能量守恒原理及非管元件特性方程,建立了适用于任意结构形式的管网系统仿真模型;形成了基于管道数学模型泛函分析、大型稀疏矩阵压缩存储条件下的快速LU分解等方法的管网系统仿真模型求解算法。采用B/S软件架构、大数据高速缓存技术、大数据抽取实时可视化技术,开发了包括数据通讯模块、数据库存储模块、数据滤波模块、在线仿真模块、结果推送模块的大型天然气管网系统在线仿真软件,将其分别应用于总长6 100 km、45座压缩机站和总长31 000 km、117座压缩机站的大型管网系统,软件适用规模、计算精度与速度均达到国际同类商业软件水平。Natural gas pipeline system simulation is the core technology for design plan demostration, transportation plan development, operation plan optimization, and emergency security decision-making of pipeline system. Hence, a simulation model applicable to the pipeline network systems in any structures was established based on the principles of conservation of mass, momentum and energy, as well as the characteristic equation of non-pipe elements. An algorithm for solving the simulation model of pipeline network system was formed based on the functional analysis of pipeline mathematical model and the fast LU decomposition under the large sparse matrix compression storage conditions. Besides, large-scale online simulation software for natural gas pipeline systems, comprising the modules of data communication, database storage,data filtering, online simulation and result pushing, was developed with the B/S software architecture, the big data caching technology and the real-time visualization technology for big data extraction. Then, the software was applied in a pipeline network system with a total length of 6 100 km and 45 compressor stations and a large pipeline network system with a total length of 31 000 km and 117 compressor stations. It is indicated that the applicable scale, calculation accuracy and speed of the software have reached the international level of similar commercial software.

关 键 词：天然气管网 在线仿真 数学模型 软件开发 

分 类 号：TE832[石油与天然气工程—油气储运工程]