| 摘要: |
| 以某LPG储罐为基础,利用Ansys Fluent软件建立符合实际的三维模型,分别模拟了不同风向工况下,储罐泄漏后丙烷扩散规律和爆炸危险区域。结果 表明:泄漏后的扩散范围,Y轴方向上为逆风>无风>顺风,X轴方向上为顺风>无风>逆风；在人体呼吸带范围内,丙烷爆炸极限覆盖的区域范围为逆风>无风>顺风；风向的作用改变了爆炸危险区域所在位置；一旦发生泄漏,应根据风向和所处位置,确定逃生路线。在实际中,可以根据计算情况,在储罐周围一定范围内做出标记,确定危险区域和逃离指示标志,为发生泄漏危险时的人员逃生和救援站位提供参考。 |
| 关键词: Fluent LPG储罐 丙烷 泄漏 爆炸极限 高压 |
| DOI：10.3969/j.issn.1007-3426.2021.05.019 |
| 分类号: |
| 基金项目:国家科技重大专项“渤海油田高效开发示范工程”(2016ZX05058004) |
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| Influence of wind direction on LPG tank leakage rule with FLUENT software |
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Wan Yufei1, Li Liwan2, Wang Wenguang1, Liang Peng1, Huang Yan1, Chen Zhengwen1
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1. CNOOC (China)Ltd. Tianjin Branch, Tianjin, China;2. Tianjin Institute of China Petroleum Engineering & Construction Project Management Company, Tianjin, China
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| Abstract: |
| Based on an LPG storage tank, a 3D model is established with Ansys Fluent software to simulate the diffusion pattern and predict the explosion-hazardous areas after a leakage of propane under different wind direction. The results showed that the diffusion range was in the order of headwind>no wind>downwind, from the longitudinal point of view while the order was downwind>no wind>headwind from the crosswise point of view. In the range of human respiratory zone, the tread of the area covered by propane explosion limit was as follow:downwind>no wind>headwind. The direction of the wind changes the location of the explosion-hazardous areas. In the case of leakage, the escape route should be determined according to the wind direction and the evacuees’ particular location. In practice, a mark could be made within a certain range around the storage tank to indicate the hazardous areas and serve as the escape indicator, which would provide a reference for personnel escape and rescue position in the danger of leakage. |
| Key words: Fluent LPG storage tank propane leakage explosion limit high pressure |
