甲烷最大爆炸压力的计算与分析  

Calculation and analysis on the max gas explosion pressure

作　　者：贾宝山[1,2] 肖明慧[1,2] 尹彬[3] 王连聪 李守国 JIA Baoshan;XIAO Minghui;YIN Bin;Wang Liancong;LI Shouguo(School of Safety Science and Engineering,Liaoning Technical University,Fuxin 123000,China;MOE Key Lab of Mine Thermodynamic Disaster and Prevention,Liaoning Technical University,Fuxin 123000,China;Department of Safety Engineering,Xinjiang Institute of Engineering, Urumqi 830000, China;National Key Lab of Mine Safety Technology, Shenyang Research Institute Company Limited,China Coal Technology and Engineering Group,Shenyang l13112,China)

机构地区：[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(辽宁工程技术大学),辽宁阜新123000 [3]新疆工程学院安全工程系,新疆乌鲁木齐830000 [4]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

出　　处：《煤炭科学技术》2017年第12期101-106,共6页Coal Science and Technology

基　　金：国家自然科学基金资助项目(51174109);国家科技重大专项资助项目(2011ZX05041-003);新疆工程学院博士启动资金资助项目(2016xgy381812)

摘　　要：为了更好地解决井下甲烷燃爆危害的问题,采用了充氮的方法,基于理论计算和CHEMKIN数值模拟软件2种研究方法,研究了氮气对甲烷爆炸的影响,选择爆炸性混合气体作为研究主体,设定统一工况条件,采用相关数学公式和化学反应方程式,分别计算了不同浓度下的甲烷的最大爆炸压力,研究了2种方法下最大爆炸压力数据变化的特点,比较总结甲烷最大爆炸压力的变化规律。结果表明:氮气对甲烷爆炸有抑制作用,随着氮气的增加,甲烷最大爆炸压力会有相应衰减,整体呈一元线性关系;理论计算的最大爆炸压力值基本契合于数值模拟,上下波动范围仅为(0.01~0.30)×105Pa。In order to solve the problem of gas explosion hazards in the underground mine, the method of filling nitrogen was adopted, two research methods of theoretieal calculation and CHEMKIN numerical simulation software were used to study the influence of nitrogen on methane, the explosive mixed gas was selected as the study subject. An unitive performance condition was set up, the relevant mathematical formula and the chemical reaction equation were applied to individually calculate the max explosion pressure value of the methane with dif- ferent concentrations, to study the data variation features of the max explosion pressure with the two methods and to compare and summarize the max explosion pressure variation law of the gas. The results showed that the nitrogen would have a restrain role to the methane explo- sion. With the nitrogen increased, the max explosion pressure of the methane would have a relevant attenuation and wholly would be in a unary linear relationship. The max explosion pressure value theoretically calculated would basically be fitted with the numerical simulation and the up and low fluctuation range would be only （0.01 -0.30） ×10^5 Pa.

关 键 词：甲烷 氮气 最大爆炸压力 燃爆 

分 类 号：TD712[矿业工程—矿井通风与安全]