瓦斯爆炸火焰结构与压力波的耦合规律

doi:10.3969/j.issn.0438-1157.2013.10.052

化工学报 ›› 2013, Vol. 64 ›› Issue (10): 3871-3877.DOI: 10.3969/j.issn.0438-1157.2013.10.052

• 其他 • 上一篇

瓦斯爆炸火焰结构与压力波的耦合规律

温小萍^1,3, 武建军², 解茂昭³

1. 河南理工大学机械与动力工程学院, 河南焦作 454003;
2. 克莱德联合泵业控股有限公司上海代表处, 上海 200120;
3. 大连理工大学能源与动力学院, 辽宁大连 116024

收稿日期:2012-11-30 修回日期:2013-06-20 出版日期:2013-10-05 发布日期:2013-10-05
通讯作者: 温小萍(1977-),男,博士
作者简介:温小萍(1977-),男,博士。
基金资助:
国家自然科学基金项目(51176021);河南省科技厅科技攻关项目(102102310362)

Coupled relationship between flame structure and pressure wave of gas explosion

WEN Xiaoping^1,3, WU Jianjun², XIE Maozhao³

1. School of Mechanical and Power Engineering, Henan Polytechnic University, Jiaozuo 454003, Henan, China;
2. Shanghai Representative Office, Clyde Union Pumps Holdings Limited, Shanghai 200120, China;
3. School of Energy and Power Engineering, Dalian University of Technology, Dalian 116024, Liaoning, China

Received:2012-11-30 Revised:2013-06-20 Online:2013-10-05 Published:2013-10-05
Supported by:
supported by the National Natural Science Foundation of China(51176021).

摘要/Abstract

摘要： 基于火焰动态传播和超压信号的高速同步采集,实验研究了不同湍流激励条件下瓦斯爆炸火焰结构与压力波的耦合关系。实验结果表明:在无障碍物条件下,火焰阵面较为光滑,由初始的半球状逐渐演变为手指状,最大超压为3.9 kPa。在中间连续障碍物条件下,火焰发展为舌状,最后呈现波浪状,最大超压为12.5 kPa。在两侧连续障碍物条件下,火焰转变为蘑菇状,最终发展为树状,最大超压为11.4 kPa。当火焰结构发生褶皱或卷曲时,火焰表面积增大,已燃气体与未燃气体快速掺混,导致燃烧反应速率和超压上升。进一步的理论分析阐明了火焰结构与瞬态超压的相互作用。

关键词: 瓦斯爆炸, 火焰结构, 超压, 耦合规律

Abstract: Based on high-speed synchronous acquisition of flame dynamic propagation and overpressure signal,an experimental study on the coupled relationship between flame shape and overpressure of gas explosion under different conditions was performed.The experimental results showed that if there was no obstruction,flame front was always relatively smooth and its shape gradually developed into a finger-like shape from initial hemisphere appearance,generating a peak overpressure of 3.9 kPa.If there were central continuous obstacles,flame front changed into a tongue-like shape,and finally into wave-like shape,resulting in a peak overpressure of 12.5 kPa.With continuous obstacles on both left and right walls,flame front gave rise to a mushroom-like shape and at last to Christmas tree shape,producing a peak overpressure of 11.4 kPa.Once flame shape was folded or curled,flame surface area increased and then the burned and unburned gas mixtures were blended rapidly,so that combustion reaction rate and overpressure increased.Furthermore,a theoretical analysis clarified the interaction between flame shapes with transient overpressure.

Key words: gas explosion, flame shape, overpressure, coupled relationship

中图分类号:

TD712

温小萍, 武建军, 解茂昭. 瓦斯爆炸火焰结构与压力波的耦合规律[J]. 化工学报, 2013, 64(10): 3871-3877.

WEN Xiaoping, WU Jianjun, XIE Maozhao. Coupled relationship between flame structure and pressure wave of gas explosion[J]. CIESC Journal, 2013, 64(10): 3871-3877.

参考文献 18

[1]	Zhou Shining(周世宁),Lin Baiquan(林柏泉).Prevention Theory and Control Technology of Gas Dynamic Disaster in Coal Mine(煤矿瓦斯动力灾害防治理论及控制技术)[M].Beijing:Science Press,2007:285-318
[2]	Jian Congguang(菅从光),Lin Baiquan(林柏泉),Song Zhengchang(宋正昶).Induction of turbulent flow and its effects on flame and explosion wave in gas explosion[J].Journal of Experimental Mechanics(实验力学),2004,19(1):39-44
[3]	Hall R,Masri A R,Yaroshchyk P.Effects of position and frequency of obstacles on turbulent premixed propagating flames[J].Combustion and Flame,2009,156(2):439-446
[4]	Johansen C T,Ciccarelli G.Visualization of the unburned gas flow field ahead of an accelerating flame in an obstructed square channel[J].Combustion and Flame,2009,156(2):405-416
[5]	Ciccarelli G,Johansen C T,Parravani M.The role of shock-flame interactions on flame acceleration in an obstacle laden channel[J].Combustion and Flame,2010,157(11):2125-2136
[6]	Ibrahim S S,Hargrave G K,Williams T C.Experimental investigation of flame/solid interactions in turbulent premixed combustion[J].Experimental Thermal and Fluid Science,2001,24(3),99-106
[7]	Bi Mingshu,Dong Chengjie,Zhou Yihui.Numerical simulation of premixed methane-air deflagration in large L/D closed pipes[J].Applied Thermal Engineering,2012,40:337-342
[8]	Wen Xiaoping,Yu Minggao,Liu Zhichao,Sun Wence. Large eddy simulation of methane-air deflagration in an obstructed chamber using different combustion models[J].Journal of Loss Prevention in the Process Industries,2012,25:730-738
[9]	Lee T,Sung J,Park D.Experimental investigations on the deflagration explosion characteristics of different DME-LPG mixtures[J].Fire Safety Journal,2012,49:62-66
[10]	Zhu Chuanjie(朱传杰),Lin Baiquan(林柏泉),Jiang Bingyou(江丙友).Coupled relationship between gas velocity and peak overpressure of deflagration wave in confined space[J].Journal of Combustion Science and Technology(燃烧科学与技术),2012,18(4):326-330
[11]	Chen Xianfeng(陈先锋),Chen Ming(陈明),Zhang Qingming(张庆明).Experimental investigation of gas explosion microstructure and dynamic characteristics in a semi-vented pipe[J].Journal of China Coal Society(煤炭学报),2010,35(2):246-249
[12]	Ibrahim S S,Masri A R.The effects of obstructions on overpressure resulting from premixed flame deflagration[J].Journal of Loss Prevention in the Process Industries,2001,14(3):213-221
[13]	Gubba S R,Ibrahim S S.Measurements and LES calculations of turbulent premixed flame propagation past repeated obstacles[J].Combustion and Flame,2011,158(12):2465-2481
[14]	Valiev D M,Bychkov V,Akkerman V,et al.Different stages of flame acceleration from slow burning to Chapman-Jouguet deflagration[J].Physical Review E,2009,80(3):036317:1-036317:11
[15]	Meneveau C,Poinsot T.Stretching and quenching of flamelets in premixed turbulent combustion[J].Combustion and Flame,1991,86(4):311-332
[16]	Karlin V,Makhviladze G,Roberts J,et al.Effect of Lewis number on flame front fragmentation in narrow closed channels[J].Combustion and Flame,2000,120(1):173-187
[17]	Xiao H,Makarov D,Sun J,et al.Experimental and numerical investigation of premixed flame propagation with distorted tulip shape in a closed duct[J].Combustion and Flame,2012,159(4):1523-1538
[18]	Chen Xianfeng(陈先锋).Study on fine flame structure behavior and flame accelerating mechanism of premixed propane-air [D].Hefei:University of Science and Technology of China,2007:95-98

瓦斯爆炸火焰结构与压力波的耦合规律

Coupled relationship between flame structure and pressure wave of gas explosion

PDF (PC)

可视化

被引次数

摘要/Abstract

引用本文

使用本文

参考文献 18

相关文章 15

编辑推荐

Metrics

本文评价

[1]	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.
[2]	闫帅, 杨家宝, 龚岩, 郭庆华, 于广锁. CO₂稀释对甲烷反扩散火焰结构的影响研究[J]. 化工学报, 2022, 73(3): 1335-1342.
[3]	吴一, 温小萍, 张素梅, 郭志东, 邓浩鑫, 纪文涛. 垂直圆管内掺氢甲烷燃烧不稳定性研究[J]. 化工学报, 2022, 73(10): 4780-4790.
[4]	王世茂, 李向东, 蔡运雄, 李国庆, 齐圣. 基于小尺度实验的燃料蒸气-空气预混气体泄爆动力学研究[J]. 化工学报, 2021, 72(9): 4961-4972.
[5]	李国庆, 杜扬, 白洁, 武军, 李孟源, 吴晓澍, 朱亮. 平板障碍物通道形状对油气爆炸传播特性影响[J]. 化工学报, 2020, 71(4): 1912-1921.
[6]	靳红旺, 郑立刚, 朱小超, 于水军, 潘荣锟, 杜德朋, 窦增果. 竖直管道中氧化铝抑制铝粉爆炸特性研究[J]. 化工学报, 2020, 71(4): 1929-1939.
[7]	喻健良, 侯玉洁, 闫兴清, 纪文涛, 于小哲, 王祎博. 密闭空间内聚乙烯粉尘爆炸火焰传播特性的实验研究[J]. 化工学报, 2019, 70(3): 1227-1235.
[8]	张增亮, 王昕, 王昊平. 带孔障碍物对管道中可燃气体爆炸特性的影响[J]. 化工学报, 2019, 70(11): 4497-4503.
[9]	李国庆, 杜扬, 齐圣, 王世茂, 张培理, 韦世豪, 李蒙. 障碍物位置和油气浓度对油气泄压爆炸特性影响[J]. 化工学报, 2018, 69(5): 2327-2336.
[10]	刘冲, 杜扬, 李国庆, 王世茂, 李蒙. 狭长密闭空间内油气爆炸火焰特性大涡模拟[J]. 化工学报, 2018, 69(12): 5348-5358.
[11]	李蒙, 杜扬, 李国庆, 王世茂, 刘冲, 韦世豪. 含90°直角弯管结构受限空间油气泄压爆炸实验与大涡模拟研究[J]. 化工学报, 2018, 69(12): 5370-5378.
[12]	杜扬, 李国庆, 王世茂, 齐圣, 李阳超, 王波. 障碍物数量对油气泄压爆炸特性的影响[J]. 化工学报, 2017, 68(7): 2946-2955.
[13]	王世茂, 杜扬, 梁建军, 周艳杰, 李国庆, 齐圣. 破坏压力对含有弱顶面受限空间内油气爆燃超压荷载的影响[J]. 化工学报, 2017, 68(12): 4865-4873.
[14]	温小萍, 余明高, 邓浩鑫, 陈俊杰, 王发辉, 刘志超. 小尺度受限空间内瓦斯湍流爆燃大涡模拟[J]. 化工学报, 2016, 67(5): 1837-1843.
[15]	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.