| 引用本文: | 赵孟卿,李灿荣,陈 川,谢 尧,周精田,胡学兵,等. 天然气管道投产氮气置换混气规律研究[J]. 石油与天然气化工, 2012, 41(5): 533-536. |
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| 摘要: |
| 天然气管道投产过程中有许多置换方法，其中常采用的是无隔离器氮气置换。目前，对于氮气置换混气规律的研究还处于发展阶段。以一维对流扩散方程为基础讨论了氮气置换模型中3种范宁摩擦系数对混气规律的影响，分析了一维模型中各种范宁摩擦系数适用的条件，同时对氮气置换过程的二维混气模型进行了初步论述，并对两种模型的适用条件进行了比较 |
| 关键词: nitrogen replacement, one-dimensional model, Fanning friction factor, two-dimensional model |
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| Research on the nitrogen replacement aerating law during the natural gas pipeline commissioning |
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Zhao Mongqing,Li Canrong,Chen Chuan,Xie Yao,Zhou Jintian,Hu Xuebin,et al
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1.Southeast Asia Pipeline Company，CNPC, Beijing 100028, China;2.Santanghu Oil Production Plant in Tuha Oilfield，Hami 839009, Xinjiang, China
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| Abstract: |
| There are many replacement methods in the process of natural gas pipelines commissioning, and the commonly most used one is nitrogen replacement without isolator. The current research on the aerating law of nitrogen replacement is still in development stage. Based on one-dimensional convection-diffusion equation, this paper discusses the influence of three kinds of Fanning friction factors on the aerating law in the nitrogen replacement, analyzes the application conditions of the Fanning friction factors in one-dimensional model, discusses preliminarily the two-dimensional aerating model in nitrogen replacement, and compares the two kinds of models application conditions |
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