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[1]贾宝山,胡如霞,李春苗,等.受限空间内C2H6对瓦斯爆炸的促进机理研究[J].中国安全生产科学技术,2015,11(10):17-22.[doi:10.11731/j.issn.1673-193x.2015.10.003]
　JIA Bao-shan,HU Ru-xia,LI Chun-miao,et al.Study on promoting mechanism of C2H6 on gas explosion in confined space[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2015,11(10):17-22.[doi:10.11731/j.issn.1673-193x.2015.10.003]
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受限空间内C2H6对瓦斯爆炸的促进机理研究
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
11
期数:
2015年10期
页码:
17-22
栏目:
学术论著
出版日期:
2015-10-30

文章信息/Info

Title:
Study on promoting mechanism of C2H6 on gas explosion in confined space
文章编号:
1673-193X(2015)-10-0017-06
作者:
贾宝山1; 2; 胡如霞1; 李春苗1; 金珂1; 李宗翔1; 2; 李守国3
(1.辽宁工程技术大学 安全科学与工程学院，辽宁 阜新 123000；2.矿山热动力灾害与防治教育部重点实验室，辽宁 阜新 123000；3.煤科集团沈阳研究院有限公司 煤矿安全技术国家重点实验室，辽宁 沈阳 113112）
Author(s):
JIA Bao-shan1; 2;  HU Ru-xia1;  LI Chun-miao1;  JIN Ke1;  LI Zong-xiang1; 2;  LI Shou-guo3
(1. College of Safety Science and Engineering, Liaoning Technical University, Fuxin Liaoning 123000, China;2. Key Laboratory of Mine Thermodynamic Disaster ＆ Control of Ministry of Education, Fuxin Liaoning 123000, China;3.State Key Laboratory of Coal Mine Safety Technology, Shenyang Research Institute CO. LTD of China Coal Technology and Engineering Group, Shenyang Liaoning 110016, China)
关键词:
受限空间; 瓦斯爆炸; 乙烷; 敏感性分析; 数值模拟
Keywords:
confined space;  gas explosion;  ethane;  sensitivity analysis;  numerical simulation
分类号:
X936
DOI:
10.11731/j.issn.1673-193x.2015.10.003
文献标志码:
A
摘要:
为了研究受限空间内C2H6对瓦斯爆炸的影响，采用GRI Mech 3.0甲烷燃烧反应机理对定容燃烧反应器内瓦斯爆炸过程中压力、温度变化趋势进行详细分析，同时，对瓦斯爆炸过程中关键反应步进行敏感性分析。结果表明：混合气体中依次充入0.5%、1%、1.5%、2%的C2H6，瓦斯爆炸压力、温度明显增加。其中，与混合气不含C2H6相比，加入2%的C2H6后，达到瓦斯爆炸最大压力、最高温度所对应的CH4体积分数都提前了3%，且爆炸最大压力增大了0.004MPa，爆炸最高温度升高了20K；混合气中加入C2H6，促进CH4生成反应步的敏感性系数大幅度下降，促进CO、NO生成反应步的敏感性系数升高。C2H6对瓦斯爆炸起促进作用，且随着C2H6含量的增加，瓦斯爆炸强度增大，同时，C2H6促进致灾性气体CO、NO的生成。
Abstract:
In order to study the impact of C2H6 on gas explosion in confined space, the methane combustion reaction mechanism GRI Mech 3.0 was applied to analyze the pressure and temperature variation trends during gas explosion process in constant volume combustion reactor in detail, and the sensitivity analysis of key reaction steps in gas explosion was conducted. The results showed that: when the mixed gas was filled sequentially with C2H6 whose content was 0.5%, 1%, 1.5%, 2% respectively, the gas explosion pressure and temperature increased significantly. Compared with that without C2H6 in mixed gas, when adding 2% C2H6, the volume fraction of CH4 corresponding to reach the maximum pressure and temperature in gas explosion was in advance of 3%. The maximum explosion pressure increased 0.004 Mpa, and the maximum explosion temperature increased 20 K. When adding C2H6, the sensitivity coefficient of reaction steps promoting CH4 formation declined significantly, while the sensitivity coefficient of reaction steps promoting CO and NO formation increased. C2H6 can promote the gas explosion, and with the increase of C2H6 content, the intensity of gas explosion increases, at the same time, C2H6 promotes the formation of hazard gas such as CO and NO.

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备注/Memo

备注/Memo:
国家自然科学基金项目（51274113,51174109）
更新日期/Last Update: 2015-12-01