点火源位置对甲烷-空气爆燃超压特征的影响

doi:10.11949/j.issn.0438-1157.20141789

化工学报 ›› 2015, Vol. 66 ›› Issue (7): 2749-2756.DOI: 10.11949/j.issn.0438-1157.20141789

• 其他 • 上一篇

点火源位置对甲烷-空气爆燃超压特征的影响

郑立刚^1,3, 吕先舒¹, 郑凯¹, 余明高^1,2, 潘荣锟^1,2, 张玉贵^1,2

1 河南理工大学瓦斯地质与瓦斯治理国家重点实验室培育基地, 河南焦作 454003;
2 河南理工大学煤炭安全生产河南省协同创新中心, 河南焦作 454003;
3 山西焦煤集团有限责任公司, 山西太原 030024

收稿日期:2014-12-03 修回日期:2015-04-28 出版日期:2015-07-05 发布日期:2015-07-05
通讯作者: 郑立刚
基金资助:
国家自然科学基金项目(51106044,51304070);中国博士后基金项目(2013M540570);河南省高等学校青年骨干教师资助项目(2012GGJS-053);河南省高校科技创新团队项目 (14IRTSTHN002)。

Influence of ignition position on overpressure of premixedmethane-air deflagration

ZHENG Ligang^1,3, LÜ Xianshu¹, ZHENG Kai¹, YU Minggao^1,2, PAN Rongkun^1,2, ZHANG Yugui^1,2

1 State Key Laboratory Cultivation Base for Gas Geology and Gas Control, Henan Polytechnic University, Jiaozuo 454003, Henan, China;
2 The Collaborative Innovation Center of Coal Safety Production of Henan Province, Henan Polytechnic University, Jiaozuo 454003, Henan, China;
3 China Shanxi Coking Coal Group Co., Ltd., Taiyuan 030024, Shanxi, China

Received:2014-12-03 Revised:2015-04-28 Online:2015-07-05 Published:2015-07-05
Supported by:
supported by the National Natural Science Foundation of China (51106044, 51304070).

摘要/Abstract

摘要：

开展了化学恰当比φ = 1甲烷-空气预混气在透明方形管道内的爆燃实验研究,改变点火源位置,分析在管道一端闭口一端开口条件下,点火源位置对甲烷-空气预混气爆燃超压特征的影响。实验结果表明:当点火源与闭口端之间距离较小时,时间-超压曲线不发生振荡,随着点火源相对于闭口端距离的增加,超压分别呈微弱等幅振荡、振幅指数增长的振荡,且最大超压峰值随之增加;超压波形与火焰瞬态结构存在密切关联,振荡波形超压峰值的极值点总是位于火焰位置的极值点;当超压发生振荡时,振幅指数增长阶段的振荡周期随时间线性减小,振荡周期与未燃气气柱长度呈现较好相关性;超压振荡的原因在于,泄爆口侧的火焰前沿触发了超压振荡,闭口侧火焰前沿与声波(压力波)在未燃气气柱中相互作用放大了超压振荡。

关键词: 甲烷, 爆炸, 安全, 超压振荡, 点火位置

Abstract:

The premixed stoichiometric methane-air deflagration is conducted in a transparent square cross-section duct. Effects of the ignition positions on the overpressure characteristics of the premixed methane-air deflagration flame propagating in the duct closed at one end and open at the opposite end are obtained. The experimental results show that the pressure waveform changes from no oscillation to weak oscillation with the equiamplitude then to sharp oscillation with the exponential increase amplitude as the ignition positions relative to the closed end of the duct are increased. The generation mechanism of the overpressure is closely dependent on the transient flame structures and the overpressure extrema of the oscillating waveforms always correspond to the flame position extrema. The oscillation periods of the overpressure waveforms during the phase of the exponential increase amplitude are linearly decreased with the time since ignition and well correlated with the length of the unburnt gas column. The oscillation is triggered by the venting of the flame front located at the open end of the duct, and then amplified by the flame-sound interaction in the unburnt gas column between the pressure wave and the flame front located at the closed end of the duct.

Key words: methane, explosion, safety, overpressure oscillation, ignition position

中图分类号:

TD712

郑立刚, 吕先舒, 郑凯, 余明高, 潘荣锟, 张玉贵. 点火源位置对甲烷-空气爆燃超压特征的影响[J]. 化工学报, 2015, 66(7): 2749-2756.

ZHENG Ligang, LÜ Xianshu, ZHENG Kai, YU Minggao, PAN Rongkun, ZHANG Yugui. Influence of ignition position on overpressure of premixedmethane-air deflagration[J]. CIESC Journal, 2015, 66(7): 2749-2756.

参考文献 24

[1]	Ciccarelli G, Dorofeev S. Flame acceleration and transition to detonation in ducts [J]. Progress in Energy and Combustion Science, 2008, 34 (4): 499-550.
[2]	Bjerketvedt D, Bakke J R, Wingerden K. Gas explosion handbook [J]. Journal of Hazardous Materials, 1997, 52 (1): 1-150.
[3]	Razus D, Movileanua C, Oancea D. The rate of pressure rise of gaseous propylene-air explosions in spherical and cylindrical enclosures [J]. Journal of Hazardous Materials, 2007, 139 (1): 1-8.
[4]	Vishwakarma R K, Ranjan V, Kumar J. Comparison of explosion parameters for methane-air mixture in different cylindrical flameproof enclosures [J]. Journal of Loss Prevention in the Process Industries, 2014, 31: 82-87.
[5]	Van D S, Norman F, Verplaetsen F. Influence of the ignition source location on the determination of the explosion pressure at elevated initial pressures [J]. Journal of Loss Prevention in the Process Industries, 2006, 19 (5): 459-462.
[6]	Park D J, Lee Y S. Experimental investigation of explosion pressures and flame propagations by wall obstruction ratios and ignition positions [J]. Korean Journal of Chemical Engineering, 2012, 29 (2): 139-144.
[7]	Blanchard R, Arndt D, Grätz R, Scheider S. Effect of ignition position on the run-up distance to DDT for hydrogen-air explosions [J]. Journal of Loss Prevention in the Process Industries, 2011, 24 (2): 194-199.
[8]	Kindracki J, Kobiera A, Rarata G, et al. Influence of ignition position and obstacles on explosion development in methane-air mixture in closed vessels [J]. Journal of Loss Prevention in the Process Industries, 2007, 20 (4/5/6): 551-561.
[9]	Bi M S, Dong C J, Zhou Y H. Numerical simulation of premixed methane-air deflagration in large L/D closed pipes [J]. Applied Thermal Engineering, 2012, 40: 337-342.
[10]	Xiao H H, Duan Q L, Jiang L, et al. Effects of ignition location on premixed hydrogen/air flame propagation in a closed combustion tube [J]. International Journal of Hydrogen Energy, 2014, 39 (16): 8557-8563.
[11]	Wen Xiaoping (温小萍), Wu Jianjun (武建军), Xie Maozhao (解茂昭). Coupled relationship between flame structure and pressure wave of gas explosion [J]. CIESC Journal (化工学报), 2013, 64 (10): 3872-3877.
[12]	Wen X P, Yu M G, Liu Z C, et al. Large eddy simulation of methane-air deflagration in an obstructed chamber using different combustion models [J]. Journal of Loss Prevention in the Process Industries, 2012, 25 (4): 730-738.
[13]	Bychkov V, Akkerman V, Fru G, et al. Flame acceleration in the early stages of burning in tubes [J]. Combustion and Flame, 2007, 150 (4): 263-276.
[14]	Yang J, Mossa F M S, Huang H W, et al. Oscillating flames in open tubes [J]. Proceedings of the Combustion Institute, 2015, 35 (2):2075-2082.
[15]	Ponizy B, Claverie A, Veyssière B. Tulip flame—the mechanism of flame front inversion [J]. Combustion and Flame, 2014, 161 (12): 3051-3062.
[16]	Phylaktou H, Andrews G E. Gas explosions in long closed vessels [J]. Combustion Science and Technology, 1991, 77 (1/2/3): 27-39.
[17]	Searby G. Acoustic instability in premixed flames [J]. Combustion Science and Technology, 1992, 81 (4/5/6): 221-231.
[18]	Zhu C J, Lin B Q, Jiang B Y, et al. Numerical simulation of blast wave oscillation effects on a premixed methane/air explosion in closed-end ducts [J]. Journal of Loss Prevention in the Process Industries, 2013, 26 (4): 851-861.
[19]	Pierre Q, Olivier V, Thierry P, et al. Large eddy simulation of vented deflagration [J]. Industrial & Engineering Chemistry Research, 2013, 52: 11414-11423.
[20]	Kerampran S, Desbordes D, VeyssiÈRe B. Study of the mechanisms of flame acceleration in a tube of constant cross section [J]. Combustion Science and Technology, 2000, 158 (1): 71-91.
[21]	Zheng L G, Yu M G, Yu S J, et al. Measurement of flame height by image processing method [J]. Advanced Materials Research, 2011, 301/303 (2): 983-988.
[22]	Petchenko A, Bychkov V, Akkerman V, et al. Flame-sound interaction in tubes with nonslip walls [J]. Combustion and Flame, 2007, 149 (4): 418-434.
[23]	Lowesmith B J, Mumby C, Hankinson G, et al. Vented confined explosions involving methane/hydrogen mixtures [J]. International Journal of Hydrogen Energy, 2011, 36 (3): 2337-2343.
[24]	Feng Changgen (冯长根), Chen Linshun (陈林顺), Qian Xinming (钱新明). Influence of ignition location on explosion overpressure in coal mine blind tunnel [J]. Journal of Safety and Environment (安全与环境学报), 2001, 1 (5): 56-59

点火源位置对甲烷-空气爆燃超压特征的影响

Influence of ignition position on overpressure of premixedmethane-air deflagration

PDF (PC)

可视化

被引次数

摘要/Abstract

引用本文

使用本文

参考文献 24

相关文章 15

编辑推荐

Metrics

本文评价

[1]	李珍宝, 李超, 王虎, 王绍瑞, 黎泉. MPP抑制铝镁合金粉尘爆炸微观机理研究[J]. 化工学报, 2023, 74(8): 3608-3614.
[2]	杨克, 贾岳, 纪虹, 邢志祥, 蒋军成. 垃圾焚烧飞灰对瓦斯爆炸压力及火焰传播的抑制作用及机理研究[J]. 化工学报, 2023, 74(8): 3597-3607.
[3]	牛超, 沈胜强, 杨艳, 潘泊年, 李熠桥. 甲烷BOG喷射器流动过程计算与性能分析[J]. 化工学报, 2023, 74(7): 2858-2868.
[4]	刘晓洋, 喻健良, 侯玉洁, 闫兴清, 张振华, 吕先舒. 螺旋微通道对掺氢甲烷爆轰传播的影响[J]. 化工学报, 2023, 74(7): 3139-3148.
[5]	周小文, 杜杰, 张战国, 许光文. 基于甲烷脉冲法的Fe₂O₃-Al₂O₃载氧体还原特性研究[J]. 化工学报, 2023, 74(6): 2611-2623.
[6]	贠程, 王倩琳, 陈锋, 张鑫, 窦站, 颜廷俊. 基于社团结构的化工过程风险演化路径深度挖掘[J]. 化工学报, 2023, 74(4): 1639-1650.
[7]	肖忠良, 尹碧露, 宋刘斌, 匡尹杰, 赵亭亭, 刘成, 袁荣耀. 废旧锂离子电池回收工艺研究进展及其安全风险分析[J]. 化工学报, 2023, 74(4): 1446-1456.
[8]	胡晗, 杨亮, 李春晓, 刘道平. 天然烟浸滤液水合物法储甲烷动力学研究[J]. 化工学报, 2023, 74(3): 1313-1321.
[9]	武子超, 汪志雷, 李荣业, 李可昕, 华敏, 潘旭海, 王三明, 蒋军成. 点火方式对欠膨胀氢气射流爆炸超压影响规律研究[J]. 化工学报, 2023, 74(3): 1409-1418.
[10]	彭晓婉, 郭笑楠, 邓春, 刘蓓, 孙长宇, 陈光进. ZIF-8浆液法分离CH₄/N₂的双吸收-吸附塔工艺流程建模与模拟[J]. 化工学报, 2023, 74(2): 784-795.
[11]	杜江龙, 杨雯棋, 黄凯, 练成, 刘洪来. 复合相变材料/空冷复合式锂离子电池模块散热性能[J]. 化工学报, 2023, 74(2): 674-689.
[12]	沈嘉辉, 王侃宏, 郁达伟, 胡大洲, 魏源送. 游离氨调理污泥厌氧消化优化产甲烷过程与强化有机物释放[J]. 化工学报, 2022, 73(9): 4147-4155.
[13]	杨克, 王辰升, 纪虹, 郑凯, 邢志祥, 毕海普, 蒋军成. 聚多巴胺包覆混合粉体抑制甲烷爆炸的实验研究[J]. 化工学报, 2022, 73(9): 4245-4254.
[14]	廖珊珊, 张少刚, 陶骏骏, 刘家豪, 汪金辉. 竖直射流火撞击障碍管道数值模拟分析[J]. 化工学报, 2022, 73(9): 4226-4234.
[15]	王燕, 何佳, 杨晶晶, 林晨迪, 纪文涛. 草酸盐和碳酸氢盐抑制聚乙烯粉尘爆炸特性[J]. 化工学报, 2022, 73(9): 4207-4216.