期刊文献+

立体结构障碍物的不同放置方式对甲烷预混火焰传播的影响 被引量:10

Deposited manner of solid structure obstacles influence on flame propagation in premixed-methane tube
下载PDF
导出
摘要 分别就长方体、三棱柱和圆柱3种立体结构障碍物的不同放置方式,对甲烷预混火焰在管道内传播的速度和超压的影响进行了研究。研究结果表明:不同立体结构障碍物的放置方式对火焰传播速度和超压的影响程度不同。对于火焰传播速度,长方体影响较小,三棱柱和圆柱影响较大。对于管道中峰值超压,不同放置方式之间导致的差异不大,在33%范围内。对于同一阻塞比立体结构障碍物,当放置于管道中,火焰经过的障碍物表面面积越大,对火焰传播速度和管道超压影响也越大。当障碍物使流通管道分叉时,对火焰传播影响将更大。对于同一立体结构障碍物,火焰传播速度越快,其导致的管道超压也越大,而不同立体结构障碍物火焰传播速度和超压之间没有必然联系。 Flame propagation speed and overpressure in tube affected by different deposited manner were investigated with three kind of solid structure obstacles.Cubiods,triangular prisms and cylinder were choosn in the experiments.Results demonstrate that deposited manner has different effect on three kind of obstacles.Flame speed makes little change for different deposited manner of cubiods,while flame speed are effected much larger for different deposited manner of triangular prism and cylinder.The difference of peak overpressure in tube affected by deposited manner is in the range of 33% for three kinds of obstacles.Different deposited manner effect on flame speed is much larger than overpressure.When the same solid structure obstacle is placed differently in tube with the same blockage retios,the more surface area of obstacle is surrounded by flame,the more flame speed and overpressure is formed.The flame propagation is greatly affected when obstacles are lied to bifurate the gas flow channel.The faster flame speed leads to the bigger overpressure in tube with different deposited of the same obstacle,while there has no definite relationship between flame speed and overpressure among different solid strcuture obstacles.
出处 《煤炭学报》 EI CAS CSCD 北大核心 2012年第1期137-140,共4页 Journal of China Coal Society
关键词 立体结构 障碍物 放置方式 火焰传播速度 超压 solid structure obstacle deposited manner flame propagation speed overpressure
  • 相关文献

参考文献15

  • 1Chapman W R, Wheeler R V. The propagation of flame in mixtures of methane and air, part 1V : the effect of restrictions in the path of the flame[ J]. J. Chem. Soc. , 1926,21:39-47.
  • 2Moen I O, Donato M, Knysautas R, et al. Flame acceleration due to turbulence produced by obstacles[ J]. Combustion and Flame, 1980, 39(1) :21-32.
  • 3Fairweather M, Hargrave G K, Ibrahim S S, et al. Studies of premixed flame propagation in explosion tubes [ J ]. Combustion and Flame, 1999,116(4) :504-518.
  • 4The Combustion Institute. Twenty-sixth symposium(International) on combustion [ C ]. Pittsburgh, Pennsylvania: the Combustion Institute, 1996.
  • 5谢波,范宝春,王克全.大型通道中被动式水雾抑爆效果的实验研究[J].实验力学,2002,17(4):511-517. 被引量:25
  • 6Ciccarelli G,Fowler C J,Bardon M. Effect of obstacle size and spac- ing on the initial stage of flame acceleration in a rough tube [ J ]. Shock Waves,2005,14 ( 3 ) : 161 - 166.
  • 7Dobashi R. Experimental study on gas explosion behavior in enclo- sure [ J]. Journal of Loss Prevention in the Process Industries, 1997, 10(2) :83-89.
  • 8Dunn-Rankin D, Mccann M A. Overpressures from nondetonating, baffle-accelerated turbulent flames in tubes [ J ]. Combustion and Flame ,2000,120 (4) :504-514.
  • 9Ciccarelli G, FowlerO C J, Bardon M. Effect of obstacle size and spacing on the initial stage of flame acceleration in a rough tube [ J ]. Shock Waves,2005,14 ( 3 ) : 161 - 166.
  • 10余立新,尤寒,盛宏至,孙文超,吴承康.障碍物结构对预混火焰压力发展的影响[J].工程热物理学报,2003,24(3):537-539. 被引量:13

二级参考文献15

  • 1余立新.障碍物扰动对半开口管道中火焰传播特性的影响: [博士论文].北京:中国科学院力学研究所,2001.
  • 2Qin Youhua,SHEN Zhaowu,LU Shouxiang et al. Experimental Study of the Effect of Water Sprays on Gas Flame Propagation [J]. Journal of Safety and Environment,2001,1(1):27-29.
  • 3Frolov S M. Modeling of Droplet Deformation and breakup Conditions [C]. Proceedings of 16th International Colloquium on the Dynamics of Explosions and Reactive Systems. Cracow,Poland,1997.417-420.
  • 4Klenk W, Widdecke N, Frohn A. Disintegeration of Monodisperse Droplet Streams by Shock Wave [C]. Proceedings of 15th International Colloquium on the Dynamics of Explosions and Reactive Systems,Boulder, Co. 1995.229-234.
  • 5Ranger A A, Nicholls J A. Aerodynamic Shattering of Liquid Drops [J]. AIAA, 1969, 7(2):285-290.
  • 6周奠邦.吊挂水棚阻止煤尘爆炸传播的隔爆效果 [M]. 全国工业粉尘防爆与治理学术讨论会论文集,北京:中国科学技术出版社, 1990.297-304.
  • 7周奠邦. 水槽安设方式对隔爆效果的影响[M]. 第22界国际采矿安全会议论文集,北京:煤炭工业出版社, 1992.456-463.
  • 8菅从光.[D].徐州:中国矿业大学,2003.
  • 9周强太 黄逸素.锅炉与热交换器传热强化[M].北京:水利电力出版社,1991,5..
  • 10林柏泉,周世宁,张仁贵.障碍物对瓦斯爆炸过程中火焰和爆炸波的影响[J].中国矿业大学学报,1999,28(2):104-107. 被引量:105

共引文献113

同被引文献65

引证文献10

二级引证文献75

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部