|本期目录/Table of Contents|

[1]黄子超,司荣军,薛少谦.抑爆粉剂浓度及粒度对瓦斯爆炸抑制效果的影响[J].中国安全生产科学技术,2018,14(4):89-94.[doi:10.11731/j.issn.1673-193x.2018.04.014]
　HUANG Zichao,SI Rongjun,XUE Shaoqian.Influence of concentration and granularity of powder explosion suppressant on suppression effect of gas explosion[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2018,14(4):89-94.[doi:10.11731/j.issn.1673-193x.2018.04.014]
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抑爆粉剂浓度及粒度对瓦斯爆炸抑制效果的影响
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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4期
页码:
89-94
栏目:
职业安全卫生管理与技术
出版日期:
2018-04-30

文章信息/Info

Title:
Influence of concentration and granularity of powder explosion suppressant on suppression effect of gas explosion
文章编号:
1673-193X(2018)-04-0089-06
作者:
黄子超1; 2; 司荣军1; 2; 薛少谦1; 2
（1. 中煤科工集团重庆研究院有限公司 火灾爆炸防治研究分院，重庆 400037；2. 瓦斯灾害监控与应急技术国家重点实验室，重庆 400037）
Author(s):
HUANG Zichao1; 2;  SI Rongjun1; 2;  XUE Shaoqian1; 2
(1.Fire and Explosion Prevention Research Branch,China Coal Technology Engineering Group Chongqing Research Institute,Chongqing 400037,China;2.National Key Laboratory of Gas Disaster Detecting,Preventing and Emergency Controlling,Chongqing 400037,China)
关键词:
抑爆剂; 浓度; 粒度; 瓦斯爆炸; 压力上升速率; 延时时间
Keywords:
explosion suppressant;  concentration;  granularity;  gas explosion;  pressure rising rate;  delay time
分类号:
X936
DOI:
10.11731/j.issn.1673-193x.2018.04.014
文献标志码:
A
摘要:
抑爆粉剂的参数指标是影响隔抑爆装置抑制瓦斯爆炸效果的重要因素之一。通过20 L球形爆炸特性实验装置对多种不同抑爆粉剂浓度及粒度条件下的瓦斯爆炸特性参数进行了测试。研究表明：随着抑爆剂浓度的逐渐增加，瓦斯爆炸最大压力降低，最大压力上升速率降低，压力到达峰值时间延迟；在20 L密闭环境，粉剂粒度＜15 μm的条件下，当抑爆粉剂浓度增加到225 g/m3时，瓦斯混合气体被完全惰化，失去爆炸性；在15~80 μm抑爆粉剂粒度范围内，随着粒度的减小，抑爆性能先减弱后增强，在抑爆粉剂浓度为200 g/m3时，15 μm 与70~80 μm粉剂粒度最大爆炸压力分别下降了19.8%，17.8%，而40~50 μm粒度爆炸压力下降了6.4%。
Abstract:
The parameter index of powder explosion suppressant is one of the important factors influencing the suppression effect of gas explosion for the explosion-proof and explosion suppression devices. The characteristic parameters of gas explosion under different concentration and granularity of multiple powder explosion suppressants were tested by using the 20 L spherical explosion characteristics experimental device. The results showed that with the gradual increase of the concentration of powder explosion suppressant,the maximum gas explosion pressure and the maximum pressure rising rate decreased,and the time reaching the peak pressure delayed. In the 20 L closed environment,when the granularity of the powder explosion suppressant was less than 15 μm,the mixed gas was completely inert and lost the explosibility when the concentration of powder explosion suppressant increased to 225 g/m3. When the granularity of the powder explosion suppressant was in the range of 15~80 μm,the explosion suppression performance decreased first and then increased with the decrease of granularity,and when the concentration of powder explosion suppressant was 200 g/m3,the maximum explosion pressure of the powder explosion suppressant with the granularity of 15 μm and 70~80 μm decreased by 19.8% and 17.8% respectively,while the explosion pressure decreased by 6.4% when the granularity was 40~50 μm.

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备注/Memo

备注/Memo:
国家重点研发计划项目（2016YFC0801703）;国家自然科学基金青年基金项目（51504285）
更新日期/Last Update: 2018-05-08