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| 埋深对平坦地区天然气管道泄漏的影响研究 | |
| 引用本文： | 马贵阳,王新,李丹,刘兵兵,黄腾龙. 埋深对平坦地区天然气管道泄漏的影响研究[J]. 西南石油大学学报(自然科学版), 2015, 37(2): 165-172. DOI: 10.11885/j.issn.1674-5086.2013.03.14.01 |
| 作者姓名： | 马贵阳 王新 李丹 刘兵兵 黄腾龙 |
| 作者单位： | 1. 辽宁石油化工大学石油天然气工程学院，辽宁抚顺113001；2. 中国石油天然气管道工程有限公司，河北廊坊065000；3. 中国石油天然气管道局，河北廊坊065000 |
| 基金项目： | 辽宁省自然科学基金(201102118) |
| 摘 要： | 针对三维埋地输气管道泄漏扩散问题，对不同埋深的平坦地区天然气管道泄漏情况进行数值模拟。根据单一 变量原则在相同气候条件下，对于不同工况只针对埋深作为单一变量，对忽略埋深的准确性进行论证，并分别研究了 埋深为1.4 m 和2.0 m 工况埋深对地下、地表、和空气中泄漏的影响。研究结果表明：埋深对泄漏的影响非常大，忽略 埋深的工况与埋深为1.4 m 和2.0 m 的工况相比所得出的各项结果都有很大的误差，忽略埋深是不准确的。埋深与扩 散范围、泄漏速度、质量分数、高浓度范围成反比，埋深越小扩散范围、泄漏速度、质量分数、高浓度范围越大。 |
| 关 键 词： | 天然气泄漏 三维埋地管道 危险区域 埋深 数值模拟 |
Influence of Burial Depth for Natural Gas Pipeline Leakage in Flat Country |
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| Ma Guiyang;Wang Xin;Li Dan;Liu Bingbing;Huang Tenglong. Influence of Burial Depth for Natural Gas Pipeline Leakage in Flat Country[J]. Journal of Southwest Petroleum University(Seience & Technology Edition), 2015, 37(2): 165-172. DOI: 10.11885/j.issn.1674-5086.2013.03.14.01 | |
| Authors: | Ma Guiyang Wang Xin Li Dan Liu Bingbing Huang Tenglong |
| Affiliation: | 1. College of Petroleum Engineering，Liaoning Shihua University，Fushun，Liaoning 113001，China;2. China Petroleum Pipeline Engineering Corporation，Langfang，Hebei 065000，China;3. China Petroleum Pipeline Bureau，Langfang，Hebei 065000，China |
| Abstract: | Aiming at the leak and diffusion problem of the buried gas pipeline，the three-dimensional numerical simulation is carried out for the natural gas pipeline leakage in flat area with different buried depth. According to the principle of single variable in the same climate conditions，we take the buried depth as a single variable for different conditions，and study the effect of buried depth of 1.4 m and 2.0 m on the leakage underground，the surface，and in the air. The results show that the buried depth has a great influence on leakage. The results from 0 conditions are great error compared with those of buried depth of 1.4 m and 2.0 m conditions. The buried depth is inversely proportional to the diffusion range，leakage rate，mass fraction and high concentration range. The shallower the buried depth，the bigger the diffusion range，leakage rate，mass fraction and high concentration range. |
| Keywords: | natural gas leak three dimensional buried pipeline deathtrap burial depth numerical simulation |
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