N<sub>2</sub>双流体细水雾抑制管道瓦斯爆炸实验研究

余明高; 杨勇; 裴蓓; 牛攀; 朱新娜

doi:10.11883/1001-1455(2017)02-0194-07

N₂双流体细水雾抑制管道瓦斯爆炸实验研究

doi: 10.11883/1001-1455(2017)02-0194-07

余明高^{1, 2},
杨勇^{1, 2},
裴蓓^{1, 2, ,},
牛攀^{1, 2},
朱新娜^{1, 2}

1.
河南理工大学安全科学与工程学院，河南焦作 454003
2.
河南省瓦斯地质与瓦斯治理重点实验室，河南焦作 454003

基金项目:

国家自然科学基金项目 U1361205

国家自然科学基金项目 50974055

国家自然科学基金项目 51604095

河南省教育厅基础研究计划项目 14A620001

河南省科技厅基础与前沿基金项目 152300410100

详细信息

作者简介:
余明高(1963-)，男，教授，博士生导师

通讯作者:
裴蓓, pb128@hpu.edu.cn

中图分类号: O389
计量
- 文章访问数: 4351
- HTML全文浏览量: 1260
- PDF下载量: 384
- 被引次数: 0
出版历程
- 收稿日期: 2015-08-14
- 修回日期: 2015-11-03
- 刊出日期: 2017-03-25

Experimental study of methane explosion suppression by nitrogen twin-fluid water mist

Yu Minggao^{1, 2},
Yang Yong^{1, 2},
Pei Bei^{1, 2
, ,},
Niu Pan^{1, 2},
Zhu Xinna^{1, 2}

1.
School of Safety Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, Henan, China
2.
State Key Laboratory of Cultivation Bases Gas Geology and Gas Control, Jiaozuo 454003, Henan, China

摘要

摘要: 为了在较低压力下获得较小粒径的细水雾，降低喷雾抑爆系统的运行成本，提高系统的适用性和抑爆效率，自行搭建了尺寸为120 mm×120 mm×840 mm的透明有机玻璃瓦斯爆炸管道实验平台。采用双流体喷嘴将N₂和细水雾送入试验管道，通过调节喷雾压力和喷雾时间开展了双流体细水雾抑制瓦斯爆炸实验研究，从火焰速度、瓦斯爆炸超压2个方面探讨双流体细水雾的抑爆有效性。实验结果表明：N₂双流体细水雾抑爆效果明显，可以减小瓦斯爆炸强度；随着喷雾时间的延长，爆炸火焰的速度峰值逐渐下降，爆炸超压峰值逐渐下降，平均升压速率逐渐降低；当N₂压力为0.4 MPa、喷雾时间为3 s时，速度峰值比不喷雾时下降60.39%，爆炸超压峰值下降37.76%。
- 双流体 /
- 氮气 /
- 细水雾 /
- 甲烷爆炸
Abstract: In this work, to obtain a water mist with a finer particle size under lower pressures, reduce the running costs of the explosion-suppressing spray system, and improve its efficiency and applicability, we designed a transparent organic glass pipeline (120 mm×120 mm×840 mm) as the experimental platform for gas explosion. Then N₂ and fine water mist was pressed into the pipeline using a twin-fluid nozzle and experimental study of methane explosion suppression by nitrogen twin-fluid water mist was carried out adjusting the spray pressure and spray time and the explosion-suppression effectiveness of the twin-fluid water mist was investigated via analysis of the flame speed and the gas explosion overpressure. The results show that this twin-fluid water mist has a high explosion-suppressing efficiency, capable of reducing the damage degree of gas explosion. With the extension of the spray time, the peak value of the explosion flame speed, the peak overpressure and the average pressure rise rate decreased gradually. When the pressure of N₂ was 0.4 MPa and the spray time was 3 s, the peak value of the velocity decreased by 60.39%, and the peak overpressure decreased by 37.76%.
- twin-fluid /
- nitrogen /
- fine water mist /
- gas explosion

HTML全文

图 1 实验系统图

Figure 1. Experimental stytem

下载: 全尺寸图片幻灯片

图 2 相同时刻火焰锋面位置对比图

Figure 2. Comparison of flame front position at the same moment

下载: 全尺寸图片幻灯片

图 3 N₂双流体细水雾火焰传播速度

Figure 3. Flame propagation velocity with N₂ twin-fluid

下载: 全尺寸图片幻灯片

图 4 N₂双流体细水雾火焰速度峰值

Figure 4. Peak velocity of flame with N₂ twin-fluid

下载: 全尺寸图片幻灯片

图 5 N₂双流体细水雾压力曲线

Figure 5. Pressure curve with N₂ twin-fluid

下载: 全尺寸图片幻灯片

图 6 N₂双流体细水雾爆炸超压峰值

Figure 6. Peak explosion pressure with N₂ twin-fluid

下载: 全尺寸图片幻灯片

表 1 不同压力不同喷雾时间下速度峰值的下降比例

Table 1. Decline proportion of the peak velocity under different pressure and at different times

工况	速度峰值/ (m·s^-1)	下降比例/ %
N₂-0.2 MPa-1 s	14.10	17.01
N₂-0.2 MPa-2 s	13.18	22.43
N₂-0.2 MPa-3 s	11.73	30.96
N₂-0.3 MPa-1 s	14.04	17.36
N₂-0.3 MPa-2 s	12.25	27.90
N₂-0.3 MPa-3 s	7.27	57.20
N₂-0.4 MPa-1 s	13.96	17.83
N₂-0.4 MPa-2 s	11.78	30.66
N₂-0.4 MPa-3 s	6.73	60.39

下载: 导出CSV

表 2 不同压力不同喷雾时间下超压峰值的下降比例

Table 2. Decline proportion of the peak overpressure under different pressure and at different times

工况	超压峰值/ (10⁴ Pa)	下降比例/ %
N₂-0.2 MPa-1 s	2.978 2	6.68
N₂-0.2 MPa-2 s	2.792 2	12.51
N₂-0.2 MPa-3 s	2.179 3	31.72
N₂-0.3 MPa-1 s	2.917 2	8.59
N₂-0.3 MPa-2 s	2.776 8	12.99
N₂-0.3 MPa-3 s	1.996 3	37.45
N₂-0.4 MPa-1 s	2.814 5	11.81
N₂-0.4 MPa-2 s	2.202 9	30.98
N₂-0.4 MPa-3 s	1.986 4	37.76

下载: 导出CSV

表 3 不同压力不同喷雾时间下平均升压速率

Table 3. Average pressure rise rate under different pressure and at different times

工况	平均升压速率/(kPa·s^-1)
N₂-0.2 MPa-1 s	495
N₂-0.2 MPa-2s	400
N₂-0.2 MPa-3s	235
N₂-0.3 MPa-1 s	402
N₂-0.3 MPa-2 s	327
N₂-0.3 MPa-3 s	218
N₂-0.4 MPa-1 s	335
N₂-0.4 MPa-2 s	248
N₂-0.4 MPa-3 s	181

下载: 导出CSV

参考文献(24)

[1]	陆守香, 何杰, 于春红, 等.水抑制瓦斯爆炸的机理研究[J].煤炭学报, 1998, 23(4):417-421. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=QK199800867661 Lu Shouxiang, He Jie, Yu Chunhong, et al. Study on mechanism of gas explosion suppression by water[J]. Journal of Coal Science, 1998, 23(4):417-421. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=QK199800867661
[2]	余明高, 安安, 游浩.细水雾抑制管道瓦斯爆炸的实验研究[J].煤炭学报, 2011, 36(3):417-422. http://d.old.wanfangdata.com.cn/Periodical/bzycj201702004 Yu Minggao, An An, You Hao. Experimental study on inhibiting the gas explosion by water spray in tube[J]. Journal of Coal Science, 2011, 36(3):417-422. http://d.old.wanfangdata.com.cn/Periodical/bzycj201702004
[3]	毕明树, 李铮, 张鹏鹏.细水雾抑制瓦斯爆炸的实验研究[J].采矿与安全工程学报, 2012, 29(3):440-443. http://d.old.wanfangdata.com.cn/Periodical/bzycj201702004 Bi Mingshu, Li Zheng, Zhang Pengpeng. Experimental investigation on suppression of gas explosion with water mist[J]. Journal of Mining & Safety Engineering, 2012, 29(3):440-443. http://d.old.wanfangdata.com.cn/Periodical/bzycj201702004
[4]	谢波, 范宝春, 夏自柱, 等.大型通道中主动式水雾抑爆现象的实验研究[J].爆炸与冲击, 2003, 23(2):151-156. http://www.bzycj.cn/CN/abstract/abstract10038.shtml Xie Bo, Fan Baochun, Xia Zizhu, et al. Experimental study on explosion suppression of active water mist in large channel[J]. Explosion and Shock Waves, 23(2):151-156. http://www.bzycj.cn/CN/abstract/abstract10038.shtml
[5]	唐建军.细水雾抑制瓦斯爆炸实验与数值模拟研究[D].西安: 西安科技大学, 2009. http://cdmd.cnki.com.cn/Article/CDMD-10704-2009262977.htm
[6]	Wingerden K V. Mitigation of gas explosions using water deluge[J]. Process Safety Progress, 2000, 19(3):173-178. doi: 10.1002/(ISSN)1547-5913
[7]	张鹏鹏.超细水雾增强与抑制瓦斯爆炸的实验研究[D].大连: 大连理工大学, 2013. http://cdmd.cnki.com.cn/Article/CDMD-10141-1013201707.htm
[8]	Medvedev S P, Gel'fand B E, Polenov A N, et al. Flammability limits for hydrogen-air mixtures in the presence of ultrafine droplets of water (fog)[J]. Combustion, Explosion, and Shock Waves, 2002, 38(4):381-386. doi: 10.1023/A:1016277028276
[9]	余明高, 赵万里, 安安.超细水雾作用下瓦斯火焰抑制特性研究[J].采矿与安全工程学报, 2011, 28(3):493-498. doi: 10.3969/j.issn.1673-3363.2011.03.030 Yu Minggao, Zhao Wanli, An An. Study on the inhibiting effectiveness on gas flame under the effort of ultra-fine water mist[J]. Journal of Mining & Safety Engineering, 2011, 28(3):493-498. doi: 10.3969/j.issn.1673-3363.2011.03.030
[10]	牛慧昌.含添加剂细水雾灭火性能实验研究[D].沈阳: 沈阳航天航空大学, 2011. http://cdmd.cnki.com.cn/Article/CDMD-10143-1012316450.htm
[11]	陆强, 黄鑫, 何宁.双流体细水雾抑制熄灭油池火的实验研究[J].消防科学与技术, 2009, 28(1):1-4. doi: 10.3969/j.issn.1009-0029.2009.01.002 Lu Qiang, Huang Xin, He Ning. Experimental study on the suppression of pool fire with twin fluid water mist[J]. Fire Science and Technology, 2009, 28(1):1-4. doi: 10.3969/j.issn.1009-0029.2009.01.002
[12]	钱海林, 王志荣, 蒋军成.N₂/CO₂混合气体对甲烷爆炸的影响[J].爆炸与冲击, 2012, 32(4):445-448. doi: 10.3969/j.issn.1001-1455.2012.04.016 Qian Hailin, Wang Zhirong, Jiang Juncheng. Effect of N₂/CO₂ mixed gas on methane explosion[J]. Explosion and Shock Waves, 2012, 32(4):445-448. doi: 10.3969/j.issn.1001-1455.2012.04.016
[13]	Pei B, Yu M, Chen L, et al. Experimental study on the synergistic inhibition effect of nitrogen and ultrafine water mist on gas explosion in a vented duct[J]. Journal of Loss Prevention in the Process Industries, 2016, 40:546-553. doi: 10.1016/j.jlp.2016.02.005
[14]	陈东梁, 孙金华, 刘义, 等.甲烷/空气预混气体火焰的传播特征[J].爆炸与冲击, 2008, 28(5):387-390. http://www.bzycj.cn/CN/abstract/abstract9060.shtml Chen Dongliang, Sun Jinhua, Liu Yi, et al. Propagation characteristics of methane/air premixed gas flame[J]. Explosion and shock waves, 2008, 28(5):387-390. http://www.bzycj.cn/CN/abstract/abstract9060.shtml
[15]	余明高, 郑凯, 郑立刚, 等.基于Matlab图像处理的瓦斯爆炸火焰传播速度研究[J].安全与环境学报, 2014, 14(1):6-9. http://d.old.wanfangdata.com.cn/Periodical/aqyhjxb201401002 Yu Minggao, Zheng Kai, Zheng Ligang, et al. Study on flame propagation velocity of gas explosion based on Matlab image processing[J]. Journal of Safety and Environment, 2014, 14(1):6-9. http://d.old.wanfangdata.com.cn/Periodical/aqyhjxb201401002
[16]	黄子超, 司荣军, 张延松, 等.初始温度对瓦斯爆炸特性影响的数值模拟[J].煤矿安全, 2012, 43(5):5-11. http://d.old.wanfangdata.com.cn/Periodical/mkaq201205002 Huang Zichao, Si Rongjun, Zhang Yansong, et al. Numerical simulation of the influence of initial temperature on gas explosion characteristics[J]. Coal Mine Safety, 2012, 43(5):5-11. http://d.old.wanfangdata.com.cn/Periodical/mkaq201205002
[17]	李润之.不同总量沉积煤尘在瓦斯爆炸诱导下的传播规律模拟研究[J].矿业安全与环保, 2013, 40(1):17-20. doi: 10.3969/j.issn.1008-4495.2013.01.007 Li Runzhi. Simulation study on propagation law of different-amount deposited coal dust explosion induced by gas explosion[J]. Mining Safety and Environmental Protection, 2013, 40(1):17-20. doi: 10.3969/j.issn.1008-4495.2013.01.007
[18]	薛少谦, 司荣军, 张延松.细水雾抑制瓦斯爆炸试验研究[J].矿业安全与环保, 2013, 40(1):4-7. doi: 10.3969/j.issn.1008-4495.2013.01.004 Xue Shaoqian, Si Rongjun, ZhangYansong. Experimental study of gas explosion suppression by water mist[J]. Mining Safety and Environmental Protection, 2013, 40(1):4-7. doi: 10.3969/j.issn.1008-4495.2013.01.004
[19]	邱雁, 高广伟.充注惰气抑制矿井火区瓦斯爆炸机理[J].煤矿安全, 2003, 34(2):8-11. http://d.old.wanfangdata.com.cn/Periodical/mkaq200302005 Qiu Yan, Gao Guangwei. Filling inert gas coal mine gas explosion suppression mechanism[J]. Coal Mine Safety, 2003, 34(2):8-11. http://d.old.wanfangdata.com.cn/Periodical/mkaq200302005
[20]	Ingram J M, Averill A F, Battersby P N, et al. Extinction of premixed methane-air flames by water mis:Part1.Burning velocityt[J]. International Journal of Hydrogen Energy, 2012, 37:19250-19257. doi: 10.1016/j.ijhydene.2012.09.092
[21]	秦文茜, 王喜世, 谷睿, 等.超细水雾下瓦斯的爆炸压力和升压速率[J].燃烧科学与技术, 2012, 18(1):90-95. http://www.cnki.com.cn/Article/CJFDTOTAL-RSKX201201015.htm Qin Wenqian, Hei Wong, Gu Rui, et al. Methane explosion overpressure and overpressure rise rate with suppression by ultra-fine water Mist[J]. Journal of Combustion Science and Technology, 2012, 18(1):90-95. http://www.cnki.com.cn/Article/CJFDTOTAL-RSKX201201015.htm
[22]	裴蓓, 余明高, 陈立伟, 等.CO₂-双流体细水雾抑制管道甲烷爆炸实验[J].化工学报, 2016, 67(7):3101-3108. http://d.old.wanfangdata.com.cn/Periodical/hgxb201607060 Pei Bei, Yu Minggao, Chen Liwei, et al. Suppression effect of CO₂-twin fluid water mist on methane/air explosion in vented duct[J]. Journal of Chemical Engineering, 2016, 67(7):3101-3108. http://d.old.wanfangdata.com.cn/Periodical/hgxb201607060
[23]	Battersby P N, Averill A F, Ingram J M, et al. Suppression of hydrogen-oxygen-nitrogen explosion by fine water mist:Part 2.Mitigation of vented deflagrations[J]. International Iournal of Hydrogen Energy, 2012, 37:19258-19267. doi: 10.1016/j.ijhydene.2012.10.029
[24]	贾宝山, 温海燕, 梁运涛, 等.煤矿巷道内N₂及CO₂抑制瓦斯爆炸的机理特性[J].煤炭学报, 2013, 38(3):361-366. http://d.old.wanfangdata.com.cn/Periodical/mtxb201303002 Jia Baoshan, Wen Haiyan, Liang Yuntao, et al. Mechanism characteristics of CO₂ and N₂ inhibiting methane explosions in coal mine roadways[J]. Journal of Coal Science, 2013, 38(3):361-366. http://d.old.wanfangdata.com.cn/Periodical/mtxb201303002