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[1]陈霖.CO2 管道介质泄漏浓度分布及危险区域实验研究[J].油气储运,2017,36(预出版):1-5.5.
　CHEN Lin.Experimental study on the medium concentration distribution and hazardous area in the case of CO2 pipeline leakage[J].Oil & Gas Storage and Transportation,2017,36(预出版):1-5.5.
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CO2 管道介质泄漏浓度分布及危险区域实验研究

《油气储运》[ISSN:1000-8241/CN:13-1093/TE] 卷: 36 期数: 2017年预出版期 页码: 1-5.5 栏目: 出版日期: 2018-12-25
Title:

Experimental study on the medium concentration distribution and hazardous area in the case of CO2 pipeline leakage

作者:

陈霖

Author(s):

CHEN Lin

关键词:

CO2; 长输管道; 泄漏; 扩散; 危险区域

Keywords:

CO2;  long-distance pipeline;  leakage;  dispersion;  hazardous area

分类号:
TE832
文献标志码:
A
摘要:

CO2 管道发生泄漏时的介质浓度扩散规律和危险区域范围是CO2 管道安全评估中的一项重要内容。基于长度为258 m 的工业规模CO2 管道泄放实验装置，开展了气相、密相及超临界相CO2在不同泄放口径下的泄漏实验，测量了扩散区域不同位置CO2 浓度。以各测点浓度的最大值为对象，分析了泄放口轴线方向CO2 浓度随距离的变化规律和扩散区域CO2 浓度分布情况。结果表明：在3 种相态情况下，泄放口轴线方向CO2 浓度随距离增加而呈指数衰减。若CO2 体积浓度取1％，当泄放口径为15 mm 时，3 种相态轴线方向危险距离约为30 m；当泄放口径为50 mm 时，轴线方向危险距离约为40 m。考虑风速、地形条件、测试误差等因素，以2 倍的安全裕量设定安全距离较为适宜。研究结果为工业应用时安全距离的设定提供了参考。

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更新日期/Last Update: 2017-08-25