障碍物对瓦斯爆炸冲击波传播的影响研究

doi:10.16265/j.cnki.issn1003-3033.2019.09.015

中国安全科学学报 ›› 2019, Vol. 29 ›› Issue (9): 96-101.doi: 10.16265/j.cnki.issn1003-3033.2019.09.015

障碍物对瓦斯爆炸冲击波传播的影响研究

徐阿猛^1,2 讲师, 陈学习^1,2 教授, 贾进章³ 教授

1 华北科技学院安全工程学院,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 辽宁工程技术大学安全科学与工程学院,辽宁阜新123000

收稿日期:2019-05-31 修回日期:2019-07-30 出版日期:2019-09-28 发布日期:2020-10-30
作者简介:徐阿猛 (1976—),男,陕西武功人,硕士,讲师,主要从事煤矿安全方面的教学和研究工作。E-mail:xamling@163.com。
基金资助:
国家自然科学基金资助(51574124);中央高校基本科研业务基金资助项目(3142015031,3142014012,3142015020);河北省矿井灾害防治重点实验室开放基金资助(KJZH2013K04)。

Effects of obstacles on gas explosion shock wave propagation

XU Ameng^1,2, CHEN Xuexi^1,2, JIA Jinzhang³

1 School of Safety Engineering, North China Institute of Science & Technology, Langfang Hebei 065201,China;
2 Key Lab for Prevention and Control of Mine Disaster of Hebei Province, Langfang Hebei 065201, China;
3 School of Safety Science and Engineering, Liaoning Technical University, Fuxin Liaoning 123000, China

Received:2019-05-31 Revised:2019-07-30 Online:2019-09-28 Published:2020-10-30

摘要/Abstract

摘要： 为研究瓦斯爆炸冲击波、火焰波在具有不同形状障碍物管路中的传播特征,采用Fluent软件数值模拟瓦斯爆炸过程中的超压、温度变化,系统地研究了圆形、正方形、长方形障碍物对瓦斯爆炸冲击波、火焰波的影响。结果表明:管道内存在边长0.13 m的正方形障碍时,瓦斯爆炸过程中的压力峰值达到0.84 MPa,在实际巷道中存在正方形障碍物的地方尤其应加强隔爆设施的布置;对于不同形状的障碍物,随着障碍物尺寸的增加,爆炸超压峰值也随之增加;对于圆形障碍物,阻塞率由小于50%向大于50%的变化过程中温度峰值呈现先增加后减小的变化趋势,且变化幅度较小,由此推断,温度峰值的增减变化以50%阻塞率为分界而出现不同的变化规律;对于正方形和圆形障碍物,温度峰值均随阻塞率的增大而增加;爆炸火焰波在经过不同障碍物时均会发生明显绕流作用,说明障碍物会加速火焰波传播。

关键词: 瓦斯爆炸, 冲击波, 数值模拟, 障碍物, 阻塞率

Abstract: In order to study propagation characteristics of gas explosion shock waves and flame waves in pipelines with differently-shaped obstacles, Fluent software was used to simulate changes of overpressure and temperature during gas explosion, and effects of circular, square and rectangular obstacles on gas explosion shock waves and flame waves were systematically studied. The results show that peak pressure of gas explosion can reach 0.84 MPa when a square obstacle with a side length of 0.13 m exists in pipelines and explosion-proof facilities should be strengthened especially where there are square obstacles in actual roadways. For all obstacles of various shapes, increase of their sizes will lead to increase of peak explosion overpressure. For circular obstacles, peak temperature increases first and then decreases and its change range is small when blocking rate changes from less than 50% to more than 50%. Therefore, it can be inferred that peak temperature will change in different ways with a blocking rate of 50% as the boundary. As for square and circular obstacles, peak temperature will increase with an increase of blocking rate. It is also found that explosive flame waves will flow around different obstacles, indicating that obstacles will accelerate propagation of flame waves.

Key words: gas explosion, shock waves, numerical simulation, obstacles, obstruction rate

中图分类号:

徐阿猛, 陈学习, 贾进章. 障碍物对瓦斯爆炸冲击波传播的影响研究[J]. 中国安全科学学报, 2019, 29(9): 96-101.

XU Ameng, CHEN Xuexi, JIA Jinzhang. Effects of obstacles on gas explosion shock wave propagation[J]. China Safety Science Journal, 2019, 29(9): 96-101.

参考文献

[1] ABEL F A. Contributions to the history of explosive agents[J]. Philadelphia Translation Science,1869,159: 489-516.
[2] BERTHELOT M, PIERRE V. On the velocity of propagation of explosive processes in gases[J]. Hebd, Sceances,1881,93:18-21.
[3] 萨文科[苏联].井下空气冲击波[M].丁亚伦,译.北京:冶金工业出版社,1979: 66-75.
[4] EDWARDS D H, FEARNLEY P, NETTLRTON M A. Shock diffraction in channels with 90 deg bends[J].Journal of Fluid Mechanics,1983,132: 257-270.
[5] MOEN I O, BJERKETVEDT D, RJNNAN A, et al. Diffraction of detonation from tubes into a large fuel-anti-explosive-cloud[J]. Symposium(International) on Combustion,1982,41: 635-644.
[6] MASRI A R, BRAHIM S, NEHZAT J et al. Experimental study of premixed flame propagation over various solid obstructions[J]. Experimental Thermal & Fluid Science,2000,21(3): 109-116.
[7] 吴红波,陆守香,张立.障碍物对瓦斯煤尘火焰传播过程影响的实验研究[J].矿业安全与环保,2004,31(3): 6-8.
WU Hongbo, LU Shouxiang, ZHANG Li. Experimental study of influence of obstacle object upon propagation of gas and coal-dust explosion flame[J]. Mining Safety & Environmental Protection,2004,31(3): 6-8.
[8] 刘玉姣.管道属性对瓦斯爆炸冲击波传播影响规律模拟研究[D].阜新:辽宁工程技术大学, 2013.
LIU Yujiao. Simulation Study on the influence of pipeline attributes on gas explosion shock wave propagation[D]. Fuxin: Liaoning Technical University,2013.
[9] 王海燕.煤矿瓦斯爆炸冲击波衰减规律研究与应用[J].煤炭学报,2009,34(6): 778-782.
WANG Haiyan. Research and application of attenuation law about gas explosion shock wave in coal mine[J]. Journal of China Coal Society, 2009,34(6): 778-782.
[10] 郗雪辰,张树海,苟瑞君,等.障碍物位置对瓦斯爆炸火焰传播影响的数值模拟[J].中北大学学报:自然科学版, 2015,36(1): 61-66.
XI Xuechen, ZHANG Shuhai, GOU Ruijun, et al. Numerical simulation of the influence of obstacles position on flame propagation of gas explosion[J]. Journal of North University of China: Natural Science Edition, 2015,36(1): 61-66.
[11] 余明高,万少杰,徐永亮,等.荷电细水雾对管道瓦斯爆炸超压的影响规律研究[J].中国矿业大学学报,2015,44(2):227-232,261.
YU Minggao, WAN Shaojie, XU Yongliang, et al. Study on the overpressure of gas explosion in the pipeline affected by charged water mist[J]. Journal of China University of Mining & Technology,2015, 44(2):227-232,261.
[12] 林柏泉,桂晓宏.瓦斯爆炸过程中火焰厚度测定及其温度场数值模拟分析[J].实验力学,2002,17(2): 227-233.
LIN Baiquan, GUI Xiaohong. Computer simulation on the temperature field of gas explosion and lab measurement for the flame thickness[J]. Journal of Experimental Mechanics,2002,17(2): 227-233.
[13] 庞磊,张奇,马秋菊.瓦斯浓度对煤矿巷道内瓦斯爆炸冲击波的影响[C].2012(沈阳)国际安全科学与技术学术研讨会论文集, 2012: 68-73.
PANG Lei, ZHANG Qi, MA Qiuju. The influence of gas explosion shock wave in coal mine roadway on gas concentration[C]. 2012(Shenyang)Proceedings of the International Symposium on Safety Science and Technology,2012: 68-73.
[14] 徐景德,杨庚宇.置障条件下的矿井瓦斯爆炸传播过程数值模拟研究[J].煤炭学报,2004, 29(1): 53-56.
XU Jingde, YANG Gengyu. Numerical simulation of mine gas explosion propagation under barrier condition[J]. Journal of China Coal Society,2004, 29(1):53-56.
[15] 刘玉姣,高科,贾进章.基于HLLC算法的连通器瓦斯爆炸模拟研究[J].中国安全科学学报,2018,28(12): 65-70.
LIU Yujiao, GAO Ke, JIA Jinzhang. Numerical simulation of gas explosion in enclosed interconnected vessel based on HLLC algorithm[J]. China Safety Science Journal,2018,28(12): 65-70.
[16] 张英浩,王志杰.管道内瓦斯爆炸压力的传播研究[J].工业安全与环保,2009,35(1): 43-44.
ZHANG Yinghao, WANG Zhijie. Study on the propagation of gas explosion pressure in pipeline[J]. Industrial Safety and Environmental Protection,2009,35(1): 43-44.
[17] 白岳松.受限空间瓦斯爆炸传播规律数值模拟研究[D].太原:太原理工大学,2012.
BAI Yuesong. Numerical simulation of gas explosion propagation in confined space[D].Taiyuan:Taiyuan University of Technology,2012.

障碍物对瓦斯爆炸冲击波传播的影响研究

Effects of obstacles on gas explosion shock wave propagation

PDF

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

编辑推荐

Metrics

本文评价

[1]	李刚, 刘海振, 杨庆贺, 牛伟锋. 带压开采煤层底板破坏特征与突水风险分析[J]. 中国安全科学学报, 2022, 32(5): 68-76.
[2]	郑艾辰, 向晋扬, 黄锋, 金成昊, 刘星辰. 空洞对隧道结构安全影响试验与模拟[J]. 中国安全科学学报, 2022, 32(5): 119-126.
[3]	游波, 毛聪, 施式亮, 刘何清, 鲁义, 李敏. 矿用通风服微空间环境变化特征研究[J]. 中国安全科学学报, 2022, 32(5): 185-193.
[4]	成连华, 郭阿娟, 郭慧敏, 曹东强. 煤矿瓦斯爆炸风险耦合演化路径研究[J]. 中国安全科学学报, 2022, 32(4): 59-64.
[5]	冯巩, 夏元友, 王智德, 严敏嘉. 基于位移信息融合的露天矿边坡动态预警方法[J]. 中国安全科学学报, 2022, 32(3): 116-122.
[6]	鲁义, 杨帆, 刘欢, 陈健, 王金鹏, 李文辉. 气凝胶消防救援服内衬的热阻计算^*[J]. 中国安全科学学报, 2022, 32(1): 201-207.
[7]	袁必和, 张玉铎, 员亚龙, 黄楚原, 陈先锋, 陈公轻. 多孔聚丙烯复合材料的抑爆性能研究^*[J]. 中国安全科学学报, 2021, 31(8): 91-96.
[8]	张钧祥, 刘彦伟, 任培良, 韩红凯, 左伟芹. 基于蠕变效应的穿层钻孔封孔参数优化与试验研究[J]. 中国安全科学学报, 2021, 31(7): 97-104.
[9]	丁厚成, 连志虚, 邓权龙, 蒋仲安, 杨利炜, 葛梦圆. 振弦栅与高压喷雾协同作用下除尘特性研究^*[J]. 中国安全科学学报, 2021, 31(6): 106-112.
[10]	荆德吉, 贾鑫, 张天, 孟祥曦, 马明星, 王志恒. 落煤过程中涡旋吹吸式除尘技术数值模拟及试验[J]. 中国安全科学学报, 2021, 31(6): 121-127.
[11]	邢朝亮, 黄咸家, 何乐, 祝赫, 郑泽铭. 火焰撞击障碍物形成的溢流火焰融合行为研究[J]. 中国安全科学学报, 2021, 31(4): 171-176.
[12]	王磊. 球形障碍物对瓦斯爆燃火焰影响试验研究[J]. 中国安全科学学报, 2021, 31(3): 54-59.
[13]	朱豪豪, 郭海林, ZHUMAKELDI A. 外力作用下管道内表面缺陷处裂纹扩展研究[J]. 中国安全科学学报, 2021, 31(3): 66-72.
[14]	姜学鹏, 陈欣格, 郭昆. 侧部点式排烟隧道火灾临界风速研究[J]. 中国安全科学学报, 2021, 31(3): 105-111.
[15]	王亮, 孙毅民, 褚鹏, 赵伟, 邹双英. 基于时空分布特征的煤层瓦斯测压准确性研究[J]. 中国安全科学学报, 2021, 31(2): 40-47.