天然气管道站场泄漏扩散三维动态研究

doi:10.11885/j.issn.1674-5086.2021.06.30.02

摘要/Abstract

摘要： 针对天然气管道站场中天然气的泄漏扩散对安全生产造成的问题，开展了天然气管道站场中天然气泄漏扩散规律研究。采用专业软件模拟的方法，使用FLACS进行模拟，设置边界条件进行求解，研究不同风速、不同风向及不同泄漏速率对天然气泄漏扩散的影响，并结合天然气行业相关标准对天然气管道站场内可燃性气体位置进行优化。研究结果表明，泄漏速率越大、风速越小时，站场区域内可燃气体体积越大，可燃气体扩散范围越广，危险程度越高，同时，顺风向泄漏的危害程度要小于其他方向。基于计算结果建议收发球筒区的可燃气体探测器应设置在距离收球筒1 m处，高度设置为2 m。这一研究为天然气管道站场的安全运行提供了重要理论支撑。

关键词: 天然气管道站场, 泄漏, 可燃性气体, 探测, 扩散

Abstract: In view of the problems caused by the leakage and diffusion of natural gas in natural gas pipeline yards on safe production, a study on the law of natural gas leakage and diffusion in natural gas pipeline yards is carried out. We adopt professional software simulation method, use FLACS software to model, set boundary conditions to solve, study the influence of different wind speeds, different wind directions and different leakage rates on natural gas leakage and diffusion, and combine the relevant standards of the natural gas industry on the combustibility of natural gas pipeline stations in optimizing the position of flammable gas. The research results show that the greater the leakage rate and the lower the wind speed, the larger the volume of combustible gas in the station area, the wider the spread of combustible gas cloud, and the higher the degree of danger. At the same time, the hazard degree of downwind leakage is less than that of other directions. It is recommended that the flammable gas detector in the receiving and dispatching tube area should be set at 1 m away from the receiving tube, and the height should be set at 2 m. This research provides important theoretical support for the safe operation of natural gas pipeline stations.

Key words: natural gas pipeline station, leakage, flammable gas, detect, diffusion

中图分类号:

TE22

尹恒, 邹庆, 廖柯熹, 彭善碧. 天然气管道站场泄漏扩散三维动态研究[J]. 西南石油大学学报(自然科学版), 2022, 44(2): 135-147.

YIN Heng, ZOU Qing, LIAO Kexi, PENG Shanbi. Three-dimensional Dynamic Study on Leakage and Diffusion of Natural Gas Pipeline Station[J]. Journal of Southwest Petroleum University(Science & Technology Edition), 2022, 44(2): 135-147.

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