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[1]周西华,王原,李昂,等.隔爆水幕对瓦斯爆炸传播规律影响的试验研究[J].中国安全生产科学技术,2017,13(11):123-128.[doi:10.11731/j.issn.1673-193x.2017.11.020]
　ZHOU Xihua,WANG Yuan,LI Ang,et al.Experimental study on influence of explosion-proof water curtain on propagation laws of gas explosion[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2017,13(11):123-128.[doi:10.11731/j.issn.1673-193x.2017.11.020]
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隔爆水幕对瓦斯爆炸传播规律影响的试验研究
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
13
期数:
2017年11期
页码:
123-128
栏目:
职业安全卫生管理与技术
出版日期:
2017-11-30

文章信息/Info

Title:
Experimental study on influence of explosion-proof water curtain on propagation laws of gas explosion
文章编号:
1673-193X(2017)-11-0123-06
作者:
周西华1; 2; 3; 王原1; 2; 3; 李昂1; 2; 3; 陈猛1; 2; 3
（1 辽宁工程技术大学 安全科学工与程学院，辽宁 阜新 123000;2 矿山热动力灾害与防治教育部重点实验室，辽宁 阜新 123000;3.辽宁工程技术大学 煤炭资源安全开采与洁净利用工程研究中心，辽宁 阜新 123000）
Author(s):
ZHOU Xihua1; 2; 3;  WANG Yuan1; 2; 3;  LI Ang1; 2; 3;  CHEN Meng1; 2; 3
(1. College of Safety Science and Engineering, Liaoning Technical University, Fuxin Liaoning 123000, China; 2. Key Laboratory of Mine Thermodynamic Disasters and Control of Ministry of Education, Fuxin Liaoning 123000, China; 3. Research Center of Coal Resources Safe Mining and Clean Utilization, Liaoning Technical University, Fuxin Liaoning 123000, China)
关键词:
隔爆水幕; 瓦斯爆炸; 抑制; 试验管道; 试验系统
Keywords:
explosion-proof water curtain;  gas explosion;  suppression;  experimental pipeline;  experimental system
分类号:
X936；TD712+72
DOI:
10.11731/j.issn.1673-193x.2017.11.020
文献标志码:
A
摘要:
为研究自制隔爆水幕抑制瓦斯爆炸的有效性，采用大直径瓦斯爆炸试验管道系统，在不同瓦斯浓度和不同水幕流量条件下进行瓦斯爆炸试验，利用数据采集系统测量瓦斯爆炸特性参数并对其变化规律和隔爆效果进行分析。结果表明：瓦斯浓度9.5%时经过隔爆水幕抑制作用，瓦斯爆炸压力峰值由64 kPa下降到39 kPa，衰减了39%；温度峰值由969 K下降到498 K，衰减了49%；速度最大值由136 m/s下降到73 m/s，衰减了15%。虽然隔爆水幕对不同浓度瓦斯产生的爆炸起到良好的抑制效果，但隔爆之后的传播规律依然受到瓦斯浓度影响。隔爆水幕对瓦斯爆炸的抑制效果取决于喷水流量的大小，随着流量的增加，水幕的隔爆效果增强，喷头最佳的工作流量为16.4 L/min。
Abstract:
In order to study the effectiveness of self-made explosion-proof water curtain for the suppression of gas explosion, the experiments of gas explosion under different conditions of gas concentration and water curtain flow were carried out by using the large diameter gas explosion experimental pipeline system. The characteristic parameters of gas explosion were measured by the data acquisition system, and the change laws of characteristic parameters and the explosion-proof effect were analyzed. The results showed that when the gas concentration was 9.5% under the suppression effect of explosion-proof water curtain, the peak value of gas explosion pressure dropped from 64 kPa to 39 kPa, reduced by 39%, the peak value of temperature dropped from 969 K to 498 K, reduced by 49%, and the maximum velocity dropped from 136 m/s to 73 m/s, reduced by 15%. Although the water curtain played a good suppression effect on the explosion of gas with different concentrations, the propagation laws after the explosion suppression were still influenced by the gas concentration. The suppression effect of explosion-proof water curtain on the gas explosion depended on the size of water flow rate, the explosion-proof effect of water curtain increased with the increase of flow rate, and the optimum working flow rate of nozzle was 16.4 L/min.

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备注/Memo

备注/Memo:
国家自然科学基金项目(51274115)；辽宁省教育厅基金项目(551610001276，L2012122）
更新日期/Last Update: 2017-12-27