|本期目录/Table of Contents|

[1]高科,贾进章,刘永红.爆炸冲击波及高温耦合引起瓦斯二次爆炸特性研究[J].中国安全生产科学技术,2016,12(4):35-38.[doi:10.11731/j.issn.1673-193x.2016.04.007]
 GAO Ke,JIA Jinzhang,LIU Yonghong.Study on characteristics of gas secondary explosion induced by coupling of shock wave and high temperature[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2016,12(4):35-38.[doi:10.11731/j.issn.1673-193x.2016.04.007]
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爆炸冲击波及高温耦合引起瓦斯二次爆炸特性研究
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
12
期数:
2016年4期
页码:
35-38
栏目:
学术论著
出版日期:
2016-04-30

文章信息/Info

Title:
Study on characteristics of gas secondary explosion induced by coupling of shock wave and high temperature
作者:
高科贾进章刘永红
(1.辽宁工程技术大学 安全科学与工程学院,辽宁 葫芦岛 125105;
2.矿山热动力灾害与防治教育部重点实验室,辽宁 葫芦岛 125105)
Author(s):
GAO Ke JIA Jinzhang LIU Yonghong
(1. College of Safety Science & Engineering, Liaoning Technical University, Huludao Liaoning 125105, China;
2. Key Laboratory of Mine Thermo-motive Disaster & Prevention, Ministry of Education, Huludao Liaoning 125105, China)
关键词:
冲击波高温瓦斯爆炸Cantera
Keywords:
shock wave high temperature gas explosion Cantera
分类号:
X936
DOI:
10.11731/j.issn.1673-193x.2016.04.007
文献标志码:
A
摘要:
在煤矿安全事故中,破坏程度最严重的事故之一就是瓦斯爆炸,而瓦斯爆炸冲击波及火焰锋面可能会二次点爆其他位置积聚瓦斯,加速火焰锋面及冲击波传播,并能产生更高的超压,造成更大的人员伤亡及财产损失。借助详细反应机理GRI Mech 3.0,基于开源化学动力学软件Cantera,研究冲击波强度、瓦斯体积分数和冲击波及高温耦合条件下对瓦斯爆炸特性的影响。结果显示,冲击波诱导瓦斯爆炸中,点火延迟时间随着瓦斯体积分数的增大而出现增大现象,随冲击波强度的增大而降低;同时分析了二氧化碳、一氧化碳和一氧化氮致害物质的浓度随瓦斯体积分数、冲击波强度和冲击波及高温耦合条件下的变化情况。
Abstract:
Gas explosion results in the most serious damage in the accidents of coal mine, and the shock wave and flame front induced by gas explosion can lead to the secondary explosion of gas in other locations, which will accelerate the propagation of flame front and shock wave, produce the higher overpressure, and cause the greater casualties and property loss. Based on the open source chemical kinetic software Cantera, through using the detailed reaction mechanism GRI Mech 3.0, the influence on characteristics of gas explosion by the intensity of shock wave, the volume fraction of gas, and the coupling of shock wave and high temperature were studied. The results showed that in the gas explosion induced by shock wave, the ignition delay time increases with the increasing volume fraction of gas, but decreases with the increasing intensity of shock wave. At the same time, the change in the concentration of hazardous substances, such as CO2, CO and NO, with the intensity of shock wave, the volume fraction of gas, and the coupling of shock wave and high temperature were analyzed.

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备注/Memo

备注/Memo:
国家自然科学基金项目(51404126, 51374121)
更新日期/Last Update: 2016-05-05