甲烷煤尘耦合爆炸传播特性及伤害研究

doi:10.16265/j.cnki.issn1003-3033.2022.01.010

中国安全科学学报 ›› 2022, Vol. 32 ›› Issue (1): 72-78.doi: 10.16265/j.cnki.issn1003-3033.2022.01.010

甲烷煤尘耦合爆炸传播特性及伤害研究

景国勋¹^,²(), 彭乐¹^,^**(), 班涛¹, 贺祥¹, 孙跃¹

¹河南理工大学安全科学与工程学院,河南焦作 454003
²安阳工学院,河南安阳 455000

收稿日期:2021-10-12 修回日期:2021-12-15 出版日期:2022-01-28 发布日期:2022-07-28
通讯作者: 彭乐
作者简介:
景国勋(1963—),男,河南襄城人,博士,教授,博士生导师,主要从事安全系统工程、瓦斯煤尘爆炸等方面的研究。E-mail: gxjing@hpu.edu.cn。
景国勋教授
基金资助:
国家自然科学基金联合基金重点项目资助(U1904210); 国家自然科学基金资助(51774120)

Research on pressure propagation and injury of methane and coal dust coupled explosion

JING Guoxun¹^,²(), PENG Le¹^,^**(), BAN Tao¹, HE Xiang¹, SUN Yue¹

¹School of Safety Science and Engineering, Henan Polytechnic University, Jiaozuo Henan 454003, China
²Anyang Institute of Technology, Anyang Henan 455000, China

Received:2021-10-12 Revised:2021-12-15 Online:2022-01-28 Published:2022-07-28
Contact: PENG Le

摘要/Abstract

摘要：

为探究煤尘质量浓度对甲烷煤尘耦合爆炸传播特性及伤害距离的影响,自制长15 m的爆炸管道系统,用体积分数为7%甲烷分别与质量浓度为0、50、100和200 g/m³的煤尘进行耦合爆炸试验,并根据质量、动量和能量守恒理论推导出最大压力计算公式。结果表明:不同质量浓度煤尘与甲烷耦合爆炸时,最大压力均随与爆源距离的增加呈现出先减小再增加最后逐渐减小的趋势;随着煤尘质量浓度增加,爆炸腔内最大压力先增加后减小;传播管道内最大压力随煤尘质量浓度的增加而增大,且最大压力与距爆源距离的平方根成反比。依据超压准则划分的死亡、重伤和轻伤距离均随煤尘质量浓度的增加而增加,轻伤距离随煤尘质量浓度变化的波动范围最大,死亡距离波动最小。

关键词: 甲烷煤尘, 耦合爆炸, 最大压力, 传播特性, 伤害距离

Abstract:

In order to study influence of coal dust's mass concentration on propagation and injury distance of methane and coal dust coupled explosion, a self-made 15m explosion pipeline system was used for an experiment where 7% methane and coal dust at different mass concentration(0, 50, 100 and 200 g/m³) had coupled explosion. Then, maximum over-pressure calculation model was derived from conservation laws of mass, momentum and energy. The results show that in coupled explosion, the maximum over-pressure decreases at first and increases and then decreases gradually along with the increase of distance from explosion source. As mass concentration of coal dust increases, the maximum over-pressure in explosion cavity first increases and then decreases, while that in propagation pipeline increases with it, and is inversely proportional to the square root of distance from explosion source. Moreover, distances of death, serious injury and minor injury all increase with the increase of dust concentration whose change has the greatest impact on distance of minor injuries and the least on that of death.

Key words: methane and coal dust, coupled explosion, maximum over-pressure, propagation characteristic, injury distance

景国勋, 彭乐, 班涛, 贺祥, 孙跃. 甲烷煤尘耦合爆炸传播特性及伤害研究[J]. 中国安全科学学报, 2022, 32(1): 72-78.

JING Guoxun, PENG Le, BAN Tao, HE Xiang, SUN Yue. Research on pressure propagation and injury of methane and coal dust coupled explosion[J]. China Safety Science Journal, 2022, 32(1): 72-78.

图/表 8

图1

表1

图2

图3

图4

图5

图6

图7

参考文献 14

[1]	杨春丽, 李祥春. 煤矿特别重大瓦斯煤尘爆炸事故发生原因及规律统计分析[J]. 煤炭技术, 2015, 34(10):309-311.
	YANG Chunli, LI Xiangchun. Reason and statistical rule of especially serious gas and coal dust explosion accidents in coal mine[J]. Coal Technology, 2015, 34(10):309-311.
[2]	王博. 煤矿瓦斯煤尘爆炸冲击波传播的影响因素研究[D]. 太原: 中北大学, 2019.
	WANG Bo. Study on the factors affecting the shock wave propagation of gas and coal dust explosion[D]. Taiyuan: North University of China, 2019.
[3]	司荣军. 矿井瓦斯煤尘爆炸传播规律研究[D]. 青岛: 山东科技大学, 2007.
	SI Rongjun. Study on the propagation laws of gas and coal dust explosion in coal mine[D]. Qingdao: Shandong University of Science and Technology, 2007.
[4]	苏岱峰. 煤尘对瓦斯爆炸压力及压力上升速率的影响研究[D]. 重庆: 重庆大学, 2018.
	SU Daifeng. Influence of coal dust on gas explosion pressure and pressure rise rate[D]. Chongqing: Chongqing University, 2018.
[5]	王洪雨. 甲烷-煤尘复合爆炸威力实验[J]. 煤炭学报, 2008, 33(7):784-788.
	WANG Hongyu. Experiment on methane-coal dust explosions[J]. Journal of China Coal Society, 2008, 33(7):784-788.
[6]	尉存娟, 谭迎新, 胡双启, 等. 瓦斯爆炸诱导瓦斯-煤尘二次爆炸的试验研究[J]. 中国安全科学学报, 2014, 24(12):29-32.
	YU Cunjuan, TAN Yingxin, HU Shuangqi, et al. Experimental research on secondary blasting of coal dust and gas induced by gas explosion[J]. China Safety Science Journal, 2014, 24(12):29-32.
[7]	谭迎新, 郭紫晨. 瓦斯爆炸激波诱导沉积煤尘爆炸的试验研究[J]. 煤炭科学技术, 2009, 37(11):37-39,27.
	TAN Yingxin, GUO Zichen. Experiment research on deposited coal dust explosion occurred by gas explosion shock wave[J]. Coal Science and Technology, 2009, 37(11):37-39,27.
[8]	杨前意, 石必明, 张雷林, 等. 拐弯角度对瓦斯爆炸诱导煤尘爆炸的影响研究[J]. 中国安全科学学报, 2019, 29(7):58-63. doi: 10.16265/j.cnki.issn1003-3033.2019.07.010
	YANG Qianyi, SHI Biming, ZHANG Leilin, et al. Study on influence of pipelines' bending angle on coal dust explosion induced by gas explosion[J]. China Safety Science Journal, 2019, 29(7):58-63. doi: 10.16265/j.cnki.issn1003-3033.2019.07.010
[9]	GUO Chaowei, SHAO Hao, JIANG Shuguang, et al. Effect of low-concentration coal dust on gas explosion propagation law[J]. Powder Technology, 2020, 367:243-252. doi: 10.1016/j.powtec.2020.03.045
[10]	AJRASH M J, ZANGANEH J, MOGHTADERI B. Methane coal dust hybrid fuel explosion properties in a large scale cylindrical explosion chamber[J]. Journal of Loss Prevention in the Process Industries, 2016, 40:317-328. doi: 10.1016/j.jlp.2016.01.009
[11]	SAZAL K, JAFAR Z, DANIEL E, et al. Explosion severity of methane coal dust hybrid mixtures in a ducted spherical vessel[J]. Powder Technology, 2018, 323:95-102. doi: 10.1016/j.powtec.2017.09.041
[12]	孙艳馥, 王欣. 爆炸冲击波对人体损伤与防护分析[J]. 火炸药学报, 2008, 31(4):50-53.
	SUN Yanfu, WANG Xin. Analysis of human body injury due to blast wave and protection method[J]. Chinese Journal of Explosives & Propellants, 2008, 31(4):50-53.
[13]	杨书召. 受限空间煤尘爆炸传播及伤害模型研究[D]. 焦作: 河南理工大学, 2010.
	YANG Shuzaho. Research on propagation and injury model of coal dust explosion in confined space[D]. Jiaozuo: Henan Polytechnic University, 2010.
[14]	鲁锦涛, 任利成, 戎丹, 等. 基于灰色-物元模型的煤矿瓦斯爆炸风险评估[J]. 中国安全科学学报, 2021, 31(2):99-105. doi: 10.16265/j.cnki.issn 1003-3033.2021.02.014
	LU Jintao, REN Licheng, RONG Dan, et al. Assessment of coal mine gas explosion risk based on grey-matter element model[J]. China Safety Science Journal, 2021, 31(2):99-105. doi: 10.16265/j.cnki.issn 1003-3033.2021.02.014

甲烷煤尘耦合爆炸传播特性及伤害研究

Research on pressure propagation and injury of methane and coal dust coupled explosion

RichHTML

PDF

可视化

摘要/Abstract

引用本文

使用本文

图/表 8

参考文献 14

相关文章 7

编辑推荐

Metrics

本文评价

[1]	张春燕, 陶刚, 涂善东, 张礼敬. 低压氢气-空气混合物爆炸试验研究及数值模拟[J]. 中国安全科学学报, 2018, 28(2): 87-92.
[2]	王云刚, 杨廷廷, 王琼洋, 张宏图, 徐向宇. 煤样中超声波传播特性研究[J]. 中国安全科学学报, 2017, 27(12): 68-73.
[3]	任少峰，陈先锋，王玉杰，李登科，刘杰. 无约束泄爆对甲烷/空气火焰传播特性影响的试验研究[J]. 中国安全科学学报, 2013, 23(4): 84-.
[4]	秦涧，谭迎新，尉存娟. 水平管道内铝粉爆炸特性的试验研究[J]. 中国安全科学学报, 2011, 21(4): 66-.
[5]	杨书召，景国勋，贾智伟，程磊. 矿井瓦斯爆炸高速气流的破坏和伤害特性研究[J]. 中国安全科学学报, 2009, 19(5): 86-.
[6]	师喜林，蒋军成，王志荣，严建骏. 甲烷-空气预混气体泄爆过程的实验研究[J]. 中国安全科学学报, 2007, 17(12): 107-.
[7]	李青锋，谢雄刚，朱川曲. 应力波在预应力锚杆内传播特性分析与工程应用[J]. 中国安全科学学报, 2007, 17(10): 172-.