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[1]周西华,李昂,宋东平,等.煤矿火区快速封闭泄爆门研究[J].中国安全生产科学技术,2016,12(10):125-129.[doi:10.11731/j.issn.1673-193x.2016.10.021]
　ZHOU Xihua,LI Ang,SONG Dongping,et al.Study on rapid sealing explosion-venting door in fire area of coal mine[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2016,12(10):125-129.[doi:10.11731/j.issn.1673-193x.2016.10.021]
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煤矿火区快速封闭泄爆门研究
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
12
期数:
2016年10期
页码:
125-129
栏目:
现代职业安全卫生管理与技术
出版日期:
2016-10-30

文章信息/Info

Title:
Study on rapid sealing explosion-venting door in fire area of coal mine
作者:
周西华1; 2; 李昂1; 2;  宋东平1; 2;  陈猛1; 2;  孙宝铁3
（1. 辽宁工程技术大学 安全科学与工程学院，辽宁 阜新 123000; 2. 矿山热动力灾害与防治教育部重点实验室， 辽宁 阜新 123000; 3. 吉林省安全科学技术研究院，吉林 长春 130051）
Author(s):
ZHOU Xihua1; 2;  LI Ang1; 2;  SONG Dongping1; 2;  CHEN Meng1; 2;  SUN Baotie3
1. College of Safety Science and Engineering, Liaoning Technical University, Fuxin Liaoning 123000, China; 2. Key Laboratory of Mine Thermodynamic Disasters and Control of Ministry of Education, Fuxin Liaoning 123000, China; 3. Jilin Institute of Safety Science and Technology, Changchun Jilin 130051, China
关键词:
封闭火区; 瓦斯爆炸; 泄爆门; 快速封闭; 数值模拟
Keywords:
closed fire zone;  gas explosion;  explosion-venting door;  rapid sealing;  numerical simulation
分类号:
X932
DOI:
10.11731/j.issn.1673-193x.2016.10.021
文献标志码:
A
摘要:
目前煤矿发生火灾事故后，火区封闭时间过长极易引发瓦斯爆炸等次生灾害，且煤矿现有的阻隔爆技术存在许多 不足，针对这些问题，研发一种用于煤矿火区的快速封闭泄爆门。通过对泄爆门的结构设计、封闭与泄爆机制及有益效 果等方面进行阐述，并采用流体力学FLUENT软件计算得出不同数量泄爆窗的泄爆门与监控泄爆门前截面的压力、速度之 间的变化情况。结果表明：6个泄爆窗比2个泄爆窗的封闭时间快1 200 ms，快速封闭时间节省了68.57%。随着泄爆窗的 增多，瓦斯爆炸冲击波压力和传播速度都大幅度降低。当煤矿发生火灾事故封闭火区时，快速封闭泄爆门不仅具有快速 密闭功能，也同时具有泄爆功能，为煤矿安全提供新的隔爆技术。
Abstract:
At present, when fire accidents have occurred in coal mine, the overlong sealing time of fire zone is easily to cause gas explosion and other secondary disasters, and there exists many deficiencies in the explosion suppression and isolation techniques of coal mine. Aiming at these problems, a new type of rapid sealing explosion-venting door for fire area of coal mine was developed. The structure design, sealing and venting explosion mechanism, and beneficial effects of the explosion-venting door were illustrated, and the change of pressure and speed on the section before the explosion-venting door with different number of explosion-venting windows were obtained by using FLUENT software. The results showed that the sealing time of explosion-venting door with six explosion-venting windows was 1200 ms faster than that with two explosion-venting windows, and 68.57% of rapid sealing time was saved. With the increase of explosion-venting windows, both the shock wave pressure and propagation speed of gas explosion decreased greatly. When happening fire accidents and sealing fire zone in coal mine, the rapid sealing explosion-venting door has not only the function of rapid sealing, but also the function of explosion-venting. It provides a new explosion suppression and isolation technique for coal mine safety.

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备注/Memo

备注/Memo:
国家自然科学基金项目(51274113，51274115)；辽宁省教育厅基金项目(L2012122）
更新日期/Last Update: 2016-11-30