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[1]刘佳佳,陈守奇,任镜璋,等.瓦斯积聚量及爆炸距离对风机和防爆门的影响研究*[J].中国安全生产科学技术,2020,16(9):57-63.[doi:10.11731/j.issn.1673-193x.2020.09.009]
　LIU Jiajia,CHEN Shouqi,REN Jingzhang,et al.Research on influence of gas accumulation amount and explosion distance on fan and explosionproof door[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2020,16(9):57-63.[doi:10.11731/j.issn.1673-193x.2020.09.009]
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瓦斯积聚量及爆炸距离对风机和防爆门的影响研究*
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
16
期数:
2020年9期
页码:
57-63
栏目:
职业安全卫生管理与技术
出版日期:
2020-09-30

文章信息/Info

Title:
Research on influence of gas accumulation amount and explosion distance on fan and explosionproof door
文章编号:
1673-193X(2020)-09-0057-07
作者:
刘佳佳; 陈守奇; 任镜璋; 胡建敏
（1.煤炭安全生产与清洁高效利用省部共建协同创新中心，河南 焦作 454003；
2.河南理工大学 安全科学与工程学院，河南 焦作 454003；
3.河南理工大学 河南省瓦斯地质与瓦斯治理重点实验室—省部共建国家重点实验室培育基地，河南 焦作 454003）
Author(s):
LIU Jiajia;  CHEN Shouqi;  REN Jingzhang;  HU Jianmin
(1.State Collaborative Innovation Center of Coal Work Safety and Cleanefficiency Utilization,Jiaozuo Henan 454003,China;
2.School of Safety Science and Engineering,Henan University of Science and Technology,Jiaozuo Henan 454003,China;
3.Henan Provincial Key Laboratory of Gas Geology and Gas ControlProvincial and Ministry of State Key Laboratory Breeding Base,Henan Polytechnic University,Jiaozuo Henan 454003,China)
关键词:
瓦斯爆炸; 冲击波; 防爆门; 风机; 数值模拟
Keywords:
gas explosion;  shock wave;  explosionproof door;  fan;  numerical simulation
分类号:
X936
DOI:
10.11731/j.issn.1673-193x.2020.09.009
文献标志码:
A
摘要:
为揭示瓦斯积聚量及瓦斯爆炸距离对风机和防爆门的影响机制，利用Fluent模拟软件，结合宁煤集团羊场湾矿的实际情况，在构建三维数学物理模型的基础上，开展不同瓦斯积聚量（56.52，113.04，169.56，226.08 m3）和不同爆炸距离（20，30，50，70 m）条件下的模拟研究。研究结果表明：风机和防爆门处超压峰值随瓦斯积聚量增加而增加，均呈线性关系，瓦斯积聚量为56.52 m3时风机处超压峰值为0.260 MPa，小于风机破坏荷载0.306 MPa；考虑安全系数前提下，当瓦斯积聚量超过56.52 m3时防爆门应开启保护风机；在确定瓦斯积聚量为56.52 m3基础上，分析不同爆炸距离对风机和防爆门影响，由模拟结果可知，风机和防爆门处超压峰值随爆炸距离增加而降低，均呈幂函数关系。研究成果可为瓦斯爆炸对风机和防爆门的影响研究提供指导。
Abstract:
In order to reveal the influence mechanism of gas accumulation amount and gas explosion distance on the fan and explosionproof door,the threedimensional mathematical and physical models were constructed by using Fluent simulation software combined with the actual situation of Yangchangwan coal mine of Ningmei Group,and the simulation research under different gas accumulation amounts (56.52,113.04,169.56 and 226.08 m3) and different explosion distances (20,30,50 and 70 m) was conducted.The results showed that the peak overpressure at the fan and the explosionproof door increased with the increase of gas accumulation amout,and both presented the linear relationship.When the gas accumulation amount was 56.52 m3,the peak overpressure at the fan was 0.260 MPa,which was less than the failure load of fan as 0.306 MPa.Under the premise of considering the safety factor,when the gas accumulation amount exceeded 56.52 m3,the explosionproof door should be opened to protect the fan.Based on the determination of gas accumulation amount as 56.52 m3,the influence of different explosion distances on the fan and explosionproof door was analyzed,and the results showed that the peak overpressures at the fan and the explosionproof door decreased with the increase of explosion distance,and both presented the power function relationship.The research results provide important guidance for the study about the influence of gas explosion on the fan and explosionproof door.

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备注/Memo

备注/Memo:
收稿日期： 2020-05-08；网络首发日期： 2020-09-14
* 基金项目： 国家重点研发计划项目(2018YFC0808100)；国家自然科学基金项目(51604101，51734007，51704099)；中国博士后基金项目（2019M652536）；中原博士后创新人才项目（ZYQR201810171)；河南省重点研发与推广专项项目（192102310511）；河南省博士后科研项目（001801016）；河南理工大学博士基金项目(B2018-59)
作者简介： 刘佳佳，博
更新日期/Last Update: 2020-10-08