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[1]谢萍,魏磊,宋硕硕,等.西部天然气干线管网系统互联互通模式对比[J].油气储运,2024,43(10):1-13.
　XIE Ping,WEI Lei,SONG Shuoshuo,et al.Practice and thinking on the interconnection and intercommunication of natural gas pipeline network in western China[J].Oil & Gas Storage and Transportation,2024,43(10):1-13.

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西部天然气干线管网系统互联互通模式对比

《油气储运》[ISSN:1000-8241/CN:13-1093/TE] 卷: 43 期数: 2024年10期页码: 1-13 栏目: 出版日期: 2024-10-25

Title:: Practice and thinking on the interconnection and intercommunication of natural gas pipeline network in western China

作者:: 谢萍; 魏磊; 宋硕硕; 李卫晨子

Author(s):: XIE Ping; WEI Lei; SONG Shuoshuo; LIWEI Chenzi

关键词:: 天然气管网; 互联互通; 阀室; 站场跨接

Keywords:: natural gas pipeline; interconnection and intercommunication; crossover between compressor stations; valve chambers

分类号:: TE832

文献标志码:: A

摘要:: [目的]“主干互联、区域成网”（简称互联互通）指通过多输送方案优化调运途径，解决天然气管网气源分布地域不均匀的问题，在天然气并行管道沿线已有的阀室间设置跨接是实现天然气管道互联互通的重要途径。目前，国内外尚未明确并行管道跨接阀室设置方案对发生截断事故管网输量的影响，且对阀室跨接设置尚未形成统一的认识。[方法]利用SPS软件建立了西部天然气管道干线管网模型，结合管网中各条管道设计输气能力、管道路由走向、沿线站场分布特点等，分析了西气东输一线与轮吐支干线、西气东输二线与西气东输三线新疆段、西气东输一线与西气东输四线甘肃段在不同阀室位置设置联通的可能性，基于可实施性和经济性给出了管道阀室联通方案。基于该方案进一步分析了单（双）管跨接方式对干线管道在事故状态下管道的失效长度、可能造成的输气量下降程度、跨接阀门失效频率及供气系统稳定性等多方面的影响。[结果]建议联通阀室采用双管跨接方式，总结了“先进行双管跨接方案设置，后进行事故状态输送能力分析，最后开展联通经济性分析”的设计步骤，制定了西气东输一线与轮吐支干线轮南—孔雀河段、西气东输二线与西气东输三线精河—乌苏段的联通方案。[结论]研究成果可为中国天然气干线管网的互联互通提供标准化设计路径。

Abstract:: [Objective] Backbone interconnection and regional networking "(referred to as interconnection) refers to the optimization of transportation routes through multiple transmission schemes to solve the problem of uneven distribution of natural gas sources in the pipeline network. Setting up cross connections between existing valve chambers along parallel natural gas pipelines is an important way to achieve interconnection and intercommunication of natural gas pipelines. At present, there is no clear understanding at home and abroad of the impact of parallel pipeline cross connection valve chamber setting schemes on the transmission capacity of pipeline networks in the event of a cutoff accident, and there is no unified understanding of valve chamber cross connection settings.[Methods] A model of the western natural gas pipeline trunk network was established using SPS software. Based on the design of gas transmission capacity, pipeline routing direction, and distribution characteristics of stations along the pipeline network, the possibility of setting connections between the West East Gas Pipeline 1 and the Luntu Branch Line, the West East Gas Pipeline 2 and the Xinjiang section of the West East Gas Pipeline 3, and the Gansu section of the West East Gas Pipeline 1 and the West East Gas Pipeline 4 at different valve chamber positions was analyzed. Based on feasibility and economy, a pipeline valve chamber connection plan was proposed. Based on this scheme, further analysis was conducted on the impact of single (double) pipe crossing methods on the failure length of mainline pipelines in accident conditions, the possible decrease in gas transmission volume, the failure frequency of crossover valves, and the stability of gas supply systems.[Results]It is recommended to adopt the double pipe crossover method for the Unicom valve room. The design steps of "setting up the double pipe crossover scheme first, analyzing the accident state transmission capacity, and finally conducting the economic analysis of the interconnection" have been summarized. The interconnection schemes for the West East Gas Pipeline 1 and the Lunnan Kongque River section of the Luntu branch trunk line, and the West East Gas Pipeline 2 and the Jinghe Wusu section of the West East Gas Pipeline 3 have been formulated. [Conclusion]The research results can provide a standardized design path for the interconnection and intercommunication of China's natural gas trunk pipeline network.

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更新日期/Last Update: 2024-08-13