|本期目录/Table of Contents|

[1]韩蓉,刘剑,高科,等.密闭空间内障碍物对瓦斯爆炸传播影响研究[J].中国安全生产科学技术,2018,14(7):61-66.[doi:10.11731/j.issn.1673-193x.2018.07.009]
　HAN Rong,LIU Jian,GAO Ke,et al.Study on influence of obstacles to gas explosion propagation in enclosed space[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2018,14(7):61-66.[doi:10.11731/j.issn.1673-193x.2018.07.009]
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密闭空间内障碍物对瓦斯爆炸传播影响研究
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
14
期数:
2018年7期
页码:
61-66
栏目:
学术论著
出版日期:
2018-07-31

文章信息/Info

Title:
Study on influence of obstacles to gas explosion propagation in enclosed space
文章编号:
1673-193X(2018)-07-0061-06
作者:
韩蓉1; 2; 刘剑1; 2; 高科1; 2; 赖鑫琼1; 2
(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.辽宁工程技术大学 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):
HAN Rong1; 2;  LIU Jian1; 2;  GAO Ke1; 2;  LAI Xinqiong1; 2
(1. School of Safety Science and Engineering, Liaoning Technical University, Huludao Liaoning 125105, China;2. Key Laboratory of Mine Thermomotive Disaster and Prevention, Ministry of Education, Liaoning Technical University, Huludao Liaoning 125105, China)
关键词:
密闭空间; 瓦斯爆炸; 火焰传播; 冲击波
Keywords:
enclosed space;  gas explosion;  flame propagation;  shock wave
分类号:
X936
DOI:
10.11731/j.issn.1673-193x.2018.07.009
文献标志码:
A
摘要:
为了研究方形狭长密闭空间内障碍物对瓦斯爆炸的影响，建立密闭方管模型，采用数值模拟的方法研究球体障碍物不同的直径及排列方式对火焰及冲击波传播规律的影响。研究结果表明：有障碍物的密闭方管模型内火焰的传播速度及压力均明显大于无填充密闭方管模型；同位排列的密闭方管模型内，随着球体障碍物直径的减小，火焰的传播速度呈先增后减的变化，压力上升速率的最大值约为无填充密闭方管模型的60倍；错位排列的密闭方管模型内，压力上升速率的最大值约是同位排列模型的100倍。
Abstract:
In order to study the influence of obstacles on gas explosion in the square narrow enclosed space, a model of enclosed square tube was established, and the influence of spherical obstacles with different diameters and arrangement modes on the propagation laws of flame and shock wave were studied by using the numerical simulation method. The results showed that both the flame propagation speed and pressure in the enclosed square tube model with the obstacles were significantly greater than those of the enclosed square tube model without the obstacles. In the enclosed square tube model with the alignment arrangement, the flame propagation speed increased first and then decreased with the decrease of the diameter of spherical obstacles, and the maximum pressure rising rate was about 60 times of that of the enclosed square tube model without the obstacles. In the enclosed square tube model with the interval alignment arrangement, the maximum pressure rising rate was about 100 times of that of the enclosed square tube model with the alignment arrangement.

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备注/Memo

备注/Memo:
中国博士后科学基金项目（2017M611254）；国家自然科学基金项目（51774169，51401426）
更新日期/Last Update: 2018-08-09