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[1]张文强,何显能,李瑾.点火位置对隔爆腔内瓦斯爆炸影响的试验研究*[J].中国安全生产科学技术,2024,20(2):183-187.[doi:10.11731/j.issn.1673-193x.2024.02.025]
　ZHANG Wenqiang,HE Xianneng,LI Jin.Experimental study on influence of ignition position on gas explosion in explosion-proof chamber[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2024,20(2):183-187.[doi:10.11731/j.issn.1673-193x.2024.02.025]
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点火位置对隔爆腔内瓦斯爆炸影响的试验研究*
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
20
期数:
2024年2期
页码:
183-187
栏目:
职业安全卫生管理与技术
出版日期:
2024-02-29

文章信息/Info

Title:
Experimental study on influence of ignition position on gas explosion in explosion-proof chamber
文章编号:
1673-193X(2024)-02-0183-05
作者:
张文强; 何显能; 李瑾
（1.中煤科工集团重庆研究院有限公司，重庆 400037；
2.重庆安标检测研究院有限公司，重庆 400037；
3.北京中安科创科技发展有限公司，北京 102299)
Author(s):
ZHANG Wenqiang;  HE Xianneng;  LI Jin
(1.China Coal Technology and Engineering Group Chongqing Research Institute,Chongqing 400037，China;
2.Chongqing Anbiao Testing and Research Institute Co.,Ltd.,Chongqing 400037,China;
3.China Safety Technology Development Co.,Ltd.,Beijing 102299,China)
关键词:
点火位置; 隔爆腔; 瓦斯爆炸; 爆炸压力; 压力上升速率
Keywords:
ignition position;  explosion-proof chamber;  gas explosion;  explosion pressure;  pressure rise rate
分类号:
X932
DOI:
10.11731/j.issn.1673-193x.2024.02.025
文献标志码:
A
摘要:
为研究目前进行隔爆外壳爆炸试验时点火源与压力测定装置安装位置尚无统一规范的问题，深入探讨点火位置对隔爆腔内瓦斯爆炸的影响，以方形隔爆外壳隔爆腔为研究对象，利用自主设计的隔爆腔内瓦斯爆炸试验装置，进行5种不同点火位置隔爆腔内瓦斯爆炸试验。研究结果表明：点火位置对隔爆腔内爆炸压力及压力上升速率影响显著，点火位置在腔体几何中心时，背壁面对角爆炸压力、爆炸压力上升速率均最大，并且曲线震荡现象最明显；距离隔爆间隙更近区域受到降能作用，压力值偏低，而同一壁面上与点火源距离相同测点爆炸压力也相等。研究结果可为规范隔爆外壳设计合理性及提升检验准确性提供一定参考。
Abstract:
In order to investigate the problem that there is no unified standard for the installation positions of ignition source and pressure measuring devices in the explosion test of explosion-proof shell at present,the influence of ignition position on the gas explosion in the explosion-proof chamber was deeply discussed.The explosion-proof chamber of square explosion-proof shell was taken as the research object,and the gas explosion tests in the explosion-proof chamber with 5 different ignition positions were carried out by using the self-developed gas explosion test device in the explosion-proof chamber.The results show that the ignition position has significant influence on the explosion pressure and the pressure rise rate in the explosion-proof chamber.When the ignition position is located at the geometric center of the chamber,both the explosion pressure and the explosion pressure rise rate on the diagonal of back wall are the largest,and the curve oscillation is the most obvious.The area closer to the explosion-proof gap is subjected to energy reduction,and the pressure value is low,while the explosion pressure of the measuring point with the same distance from the ignition source on the same wall is equal.The research results can provide some reference for the reasonable design of standard explosion-proof shell and the improvement of inspection accuracy.

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备注/Memo

备注/Memo:
收稿日期： 2023-10-31
* 基金项目： 国家自然科学基金项目(52104238，52174227)；重庆英才计划“包干制”项目(cstc2021ycjh-bgzxm0230)；重庆市自然科学基金项目（CSTB2022NSCQ-MSX0867）
作者简介： 张文强，硕士，研究实习员，主要研究方向为防爆电气检测检验技术。
通信作者： 李瑾，硕士，工程师，主要研究方向为矿井通风、安全科学与灾害防治。
更新日期/Last Update: 2024-03-11