| 高压天然气管道破裂时气体扩散规律和气液分离技术进展 |
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| 引用本文： | 何利民,王林.高压天然气管道破裂时气体扩散规律和气液分离技术进展[J].石油工业技术监督,2005,21(5):89-93. |
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| 作者姓名： | 何利民 王林 |
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| 作者单位： | 中国石油大学(华东)储运与建筑工程学院,东营,257061 |
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| 摘 要： | 采用国际上著名的流动与传热商业软件Fluent5.4对高压天然气管道破裂时天然气的扩散规律进行了数值模拟，所采用的数学模型为无化学反应的燃烧计算模型。模拟结果表明，取50％和15％为甲烷的爆炸上、下限，甲烷的危险范围是Fd,泄漏点为中心，半径14-23．5m宽度9.5m的圆环范围内。污染物在大气中的浓度与平均风速成反比，风的作用在地面附近影响效果不太明显；随着高度的增加，影响效果将不断增强。
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| 关 键 词： | 天然气管道 气体扩散规律 气液分离技术 天然气泄露事故 计算方法 气液分离设备 |
| 修稿时间： | 2005年4月21日 |
The Law of Gas Diffusion from Leaked High-Press Gas Pipeline and the Progress of Gas-Liquid Separating Technology |
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| He Limin,Wang Lin.The Law of Gas Diffusion from Leaked High-Press Gas Pipeline and the Progress of Gas-Liquid Separating Technology[J].Technology Supervision In Petroleum Industry,2005,21(5):89-93. |
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| Authors: | He Limin Wang Lin |
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| Abstract: | Fluent 5.4 is used to make numerical simulation of the law of gas diffusion from leaked high-pressure gas pipeline. The mathematic model adopted is a calculating model for combustion without any chemical reaction. Simulating results show that, with 5.0% and 15% being the minimum and maximum for methane explosion, the range of methane risk is within the ring of 14~23.5m in radius and 9.5m in width. The concentration of pollutants in the air is in inverse proportion to the average of wind speed. The effect of wind near the ground is not significant but it will intensify as the height increases. |
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| Keywords: | high pressure natural gas numerical simulation gas-liquid separation gas diffusion pipeline crack |
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