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[1]李昂,等.泄爆面积比对泄爆门封闭泄爆特性的影响研究*[J].中国安全生产科学技术,2021,17(9):84-89.[doi:10.11731/j.issn.1673-193x.2021.09.013]
　LI Ang,SI Junhong,PENG Rui,et al.Research on influence of explosion venting area ratio on closed explosion venting characteristics of explosion venting door[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2021,17(9):84-89.[doi:10.11731/j.issn.1673-193x.2021.09.013]
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泄爆面积比对泄爆门封闭泄爆特性的影响研究*
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
17
期数:
2021年9期
页码:
84-89
栏目:
职业安全卫生管理与技术
出版日期:
2021-09-30

文章信息/Info

Title:
Research on influence of explosion venting area ratio on closed explosion venting characteristics of explosion venting door
文章编号:
1673-193X(2021)-09-0084-06
作者:
李昂; 司俊鸿; 彭瑞; 周西华
（1.华北科技学院 应急技术与管理学院，河北 廊坊 065201；
2.河北省矿井灾害防治重点实验室,河北 廊坊 065201；
3.矿山热动力灾害与防治教育部重点实验室，辽宁 阜新 123000；
4.辽宁工程技术大学 安全科学与工程学院，辽宁 阜新 123000）
Author(s):
LI Ang;  SI Junhong;  PENG Rui;  ZHOU Xihua
(1.School of Emergency Technology and Management,North China Institute of Science and Technology,Langfang Hebei 065201,China;
2.Hebei Provincial Key Lab of Mine Disaster Prevention and Control,Langfang Hebei 065201,China;
3.Key Laboratory of Mine Thermodynamic Disasters and Control of Ministry of Education,Fuxin Liaoning 123000,China;
4.School of Safety Science and Engineering,Liaoning Technical University,Fuxin Liaoning 123000,China)
关键词:
泄爆门; 瓦斯爆炸; 泄爆面积比; 泄爆特性; 快速封闭
Keywords:
explosion venting door;  gas explosion;  explosion venting area ratio;  explosion venting characteristics;  rapid closure
分类号:
X936
DOI:
10.11731/j.issn.1673-193x.2021.09.013
文献标志码:
A
摘要:
为研究泄爆面积比对泄爆门泄爆特性的影响，运用FLUENT软件建立煤矿井下1∶1巷道模型，在不同泄爆面积比的工况下对瓦斯爆炸传播规律及泄爆过程进行模拟，分析其变化特征和封闭泄爆效果。结果表明：S0工况条件下，压力和温度衰减后保持在0.29 MPa和565 K；S1~S4工况条件下，S4比S1，S2和S3达到封闭状态时间快780，260，50 ms，封闭时间最大节省70.91%；随着泄爆面积比的增大，封闭火区内的压力的峰值、峰值数量和达到封闭状态时间减小，泄爆能力增强；火焰速度峰值和衰减速率增大；温度的初始峰值、峰值数量和达到稳定状态时间减小，最大峰值反而增大，说明泄爆门对瓦斯爆炸火焰无抑制作用。
Abstract:
In order to study the influence of explosion venting area ratio on the explosion venting characteristics of explosion venting door,the FLUENT software was used to establish a 1∶1 roadway model of underground coal mine,and the propagation laws and explosion venting process of gas explosion were simulated under different explosion venting area ratios,then the change characteristics and closed explosion venting effect were analyzed.The results showed that under S0 working conditions,the pressure and temperature were maintained at 0.29 MPa and 565 K after attenuation.Under S1~S4 working conditions,S4 was 780,260 and 50 ms faster than S1,S2 and S3 to reach the closed state respectively,and the closed time could be saved up to 70.91%.With the increase of explosion venting area ratio,the peak pressure,the number of peaks and the time to reach the closed state in the closed fire area decreased,and the explosion venting capability increased.The peak velocity and decay rate of flame increased.The initial peak temperature,the number of peaks and the time to reach a steady state decreased,but the maximum peak increased instead,which indicated that the explosion venting door had no inhibitory effect on the flame of gas explosion.

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备注/Memo

备注/Memo:
收稿日期： 2021-03-11
* 基金项目： 国家自然科学基金项目（51804120，51804119）；中央高校基本科研业务费项目（3142019006，3142018028）
作者简介： 李昂，博士，讲师，主要研究方向为矿井瓦斯灾害防治和应急技术。
通信作者： 司俊鸿，博士，副教授，主要研究方向为矿井通风与热害防治。
更新日期/Last Update: 2021-10-02