[1]薛少谦,黄子超.细水雾粒度对瓦斯抑爆效果的影响研究[J].西安科技大学学报,2015,(05):644-649.[doi:10.13800/j.cnki.xakjdxxb.2015.0519]
 XUE Shao-qian,HUANG Zi-chao.Impact of water mist particle size on gas explosion suppression effect[J].Journal of Xi'an University of Science and Technology,2015,(05):644-649.[doi:10.13800/j.cnki.xakjdxxb.2015.0519]
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细水雾粒度对瓦斯抑爆效果的影响研究(/HTML)
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西安科技大学学报[ISSN:1672-9315/CN:61-1434/N]

卷:
期数:
2015年05期
页码:
644-649
栏目:
出版日期:
2015-10-08

文章信息/Info

Title:
Impact of water mist particle size on gas explosion suppression effect
作者:
薛少谦黄子超
中煤科工集团重庆研究院有限公司,重庆 400037
Author(s):
XUE Shao-qianHUANG Zi-chao
Chongqing Research Institute of China Coal Technology Engineering Group,Chongqing 400037,China
关键词:
细水雾粒度 喷雾压力 爆炸上限 抑爆效果 数值模拟
Keywords:
water mist particle size spray pressure upper explosion limit explosion suppression effect numerical simulation
分类号:
TD 712
DOI:
10.13800/j.cnki.xakjdxxb.2015.0519
文献标志码:
A
摘要:
细水雾作为抑爆介质具有高效、环保等优点,受到越来越多的重视。以透明管道为基础搭建了细水雾抑制瓦斯爆炸的实验平台,通过改变喷嘴个数、喷雾压力研究了不同细水雾流量、粒度对瓦斯爆炸上限的影响。根据实验物理模型,进行了细水雾与瓦斯燃烧爆炸相互作用过程的数值模拟。结果表明:随着细水雾粒度变小,瓦斯爆炸上限降低,水雾粒度与爆炸上限呈一阶增加指数关系; 细水雾粒度相对水雾流量在抑制瓦斯爆炸过程中起主导作用,190 μm左右的细水雾粒度具有更好的抑爆效果。研究得出的规律性结论可以为细水雾抑爆技术及装备的研究提供理论基础。
Abstract:
Explosion suppression medium water mist has the advantages of high efficiency and environmental protection,receiving more and more attention.In this paper,we build the experimental platform on water mist suppressing gas explosion,based on the transparent pipeline.We studied the impact of gas upper explosion limit under different water mist flow and particle size,by changing the number of nozzles and spray pressure.According to experimental physics model,we did numerical simulation on the interaction process of water mist and gas explosion.Study found that with the decrease of water mist particle size,gas upper explosion limit reduce,water mist particle size and the gas upper explosion limit have first-order increasing exponential relationship.Relative to water mist flow,water mist particle size plays a dominant role in the process of suppressing gas explosion.Water mist particle size of about 190 μm has better explosion suppression effect.The regularity conclusions of the study can provide a theoretical basis for the study of mist explosion suppression technology and equipment.

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备注/Memo

备注/Memo:
通讯作者:薛少谦(1980-),男,陕西韩城人,副研究员,E-mail:460755817@qq.com
更新日期/Last Update: 2015-09-15