弯管内铝粉二次爆炸及抑爆试验研究*

doi:10.16265/j.cnki.issn1003-3033.2017.11.008

中国安全科学学报 ›› 2017, Vol. 27 ›› Issue (11): 43-48.doi: 10.16265/j.cnki.issn1003-3033.2017.11.008

弯管内铝粉二次爆炸及抑爆试验研究^*

雷伟刚, 毕海普^** 讲师, 王凯全教授

常州大学环境与安全工程学院,江苏常州 213164

收稿日期:2017-07-12 修回日期:2017-09-26 发布日期:2020-10-21
通讯作者: ** 毕海普(1982—),女,河南南阳人,博士,主要从事爆炸安全工程与风险分析研究。E-mail:bihaipu@cczu.edu.cn。
作者简介:雷伟刚 (1992—),男,安徽六安人,硕士研究生,主要研究方向为火灾爆炸及工业粉尘防爆。E-mail:15103306@smail.cczu.edu.cn。
基金资助:
江苏省高等学校自然科学研究项目(16KJB620001)。

Experimental study on secondary explosion of aluminum powder in elbow pipeline and its suppression

LEI Weigang, BI Haipu, WANG Kaiquan

School of Environmental and Safety Engineering, Changzhou University, Changzhou Jiangsu 213164, China

Received:2017-07-12 Revised:2017-09-26 Published:2020-10-21

摘要/Abstract

摘要： 为研究弯管对铝粉爆炸及二次爆炸传播和后果的影响,基于实验室粉尘爆炸及抑爆系统,测试并分析粉尘爆炸及其抑爆的关键参数。利用弯管中丙烷爆炸产生的激波引起铝粉二次扬尘爆炸,并针对铝粉二次爆炸进行抑爆测试。结果表明:激波吹起的铝粉引起的二次爆炸压力明显高于纯丙烷,铝粉质量浓度为500 g/m³时粉尘爆炸压力最高,加入抑爆剂后,粉尘爆炸的火焰传播时间及火焰强度明显减小,且磷酸二氢铵的抑爆效果优于碳酸钙,爆炸压力随着抑爆剂浓度的增加而降低,加入质量分数为10%的磷酸二氢铵能完全抑爆。

关键词: 二次爆炸, 铝粉, 冲击波, 抑爆剂, 最大爆炸压力, 弯管

Abstract: A laboratory system was used to test and study the key parameters of dust explosion and its suppression, as well as to analyze the effects of elbow pipeline on propagation and consequences of primary and secondary aluminum dust explosions. The secondary dust explosion of the aluminum powder was triggered by the shockwave from propane explosion. The explosion process and its suppression were then tested in the elbow tube accordingly. Results show that the pressure of the secondary dust explosion of aluminum powder blowed by shockwave was obviously higher than that of pure propane explosion, and the maximum pressure appears at the concentration of 500 g/m³. Both the propagation time and flame intensity are reduced significantly by adding anti-explosive agent, and ammonium dihydrogen phosphate is better than calcium carbonate in suppression effect.The explosion pressure decreases with the addition of ammonium dihydrogen phosphate and when the suppressant's mass fraction is 10%, the explosion is suppressed completely.

Key words: secondary dust explosion, aluminum powder, shockwave, explosion suppressant, maximum explosion pressure, elbow pipeline

中图分类号:

X932

雷伟刚, 毕海普讲师, 王凯全教授. 弯管内铝粉二次爆炸及抑爆试验研究^*[J]. 中国安全科学学报, 2017, 27(11): 43-48.

LEI Weigang, BI Haipu, WANG Kaiquan. Experimental study on secondary explosion of aluminum powder in elbow pipeline and its suppression[J]. China Safety Science Journal, 2017, 27(11): 43-48.

参考文献

[1] 胡东涛,陈曦. 工业粉尘惰化抑爆技术研究现状分析[J]. 工业安全与环保,2016, 42(12): 10-13.
HU Dongtao, CHEN Xi. Review of researches on inerting suppression of industrial dust explosion[J]. Industrial Safety and Environmental Protection, 2016, 42(12): 10-13.
[2] 李小川, 陈明军, 刘欣. 通风输送过程高浓度粉尘沉积特性[J]. 粉末冶金材料科学与工程, 2015, 20(3): 470-478.
LI Xiaochuan, CHEN Mingjun, LIU Xin. Deposition characteristics of high concentration dust in ventilation conveyer process[J]. Materials Science and Engineering of Powder Metallurgy, 2015, 20(3): 470-478.
[3] 何琰儒,朱顺兵,李明鑫,等. 煤粉粒径对粉尘爆炸影响试验研究与数值模拟 [J]. 中国安全科学学报,2017,27(1): 53-58.
HE Yanru, ZHU Shunbing, LI Mingxin, et al. Experimental study and numerical simulation of effect of coal particle size on dust cloud explosion [J]. China Safety Science Journal, 2017, 27(1): 53-58.
[4] 陈成. 铝粉及TNT粉尘的最小点火能和爆炸下限研究[D]. 太原:中北大学,2013.
CHEN CHENG. Study on the minimum ignition energy and the lower explosive concentration of aluminum powder and TNT dust[D]. Taiyuan: North University of China, 2013.
[5] DUFAUD O, TRAORÉ M, PERRIN L, et al. Experimental investigation and modelling of aluminum dust explosions in the 20 L sphere[J]. Journal of Loss Prevention in the Process Industries,2010, 23(2): 226-236.
[6] 谭汝媚, 张奇, 张博. 点火延迟时间对铝粉爆炸特性参数的影响[J]. 爆炸与冲击, 2014, 34(1): 17-23.
TAN Rumei, ZHANG Qi, ZHANG Bo. Effects of ignition delay time on characteristic parameters of aluminum dust explosion[J]. Explosion and Shock Waves,2014, 34(1): 17-23.
[7] 李迪. 铝粉爆炸泄放特性及二次爆炸现象实验研究[D]. 大连:大连理工大学, 2013.
LI Di. Experimental investigation on venting characteristics and secondary explosion of aluminum dust explosion[D]. Dalian: Dalian University of Technology, 2013.
[8] 谭迎新, 薄涛. 激波诱导下煤粉的爆炸压力测试[J]. 中国安全科学学报, 2009, 19(7): 74-77.
TAN Yingxin, BO Tao. Explosion pressure testing of coal dust inducted by shock wave[J]. China Safety Science Journal,2009, 19(7): 74-77.
[9] 秦涧, 谭迎新, 尉存娟. 水平管道内铝粉爆炸特性的试验研究[J]. 中国安全科学学报, 2011, 21(4): 66-70.
QIN Jian, TAN Yingxin, YU Cunjuan. Experimental study on aluminum dust explosion characteristics in horizontal pipeline equipment[J]. China Safety Science Journal, 2011, 21(4): 66-70.
[10] 耿继辉, 汤明钧. 粉尘云激波点火现象实验研究 [J]. 爆炸与冲击, 1996, 16(2): 143-148.
GENG Jihui, TANG Mingjun. Experimental study of the ignition of suspended dust by shock wave[J]. Explosion and Shock Waves, 1996, 16(2): 143-148.
[11] DONG CHENGjie, BI Mingshu, ZHOU Yihui. Effects of obstacles and deposited coal dust on characteristics of premixed methane:air explosions in a long closed pipe [J]. Safety Science, 2012, 50: 1 786-1 791.
[12] 李小东,师峥. 管内煤粉爆炸特性及抑制技术研究 [J]. 中国安全科学学报,2017,27(4): 72-76.
LI Xiaodong, SHI Zheng. Explosion characteristics of coal dust in a tube and suppressing techniques [J]. China Safety Science Journal, 2017, 27(4): 72-76.
[13] JOHNSTON H Greg, CHOWDHURY Amira Y, MANNAN M Sam, et al. Effect of coal-limestone mixtures on dust dispersion behind a moving shock wave[J]. Journal of Loss Prevention in the Process Industries, 2016, 44: 551-563.
[14] CHOWDHURY Amira Y, JOHNSTON H Greg, MARKS Brandon, et al. Effect of shock strength on dust entrainment behind a moving shockwave[J]. Journal of Loss Prevention in the Process Industries, 2015, 36: 203-213.
[15] 李亚男. 磷酸二氢铵对金属粉尘的爆炸抑制研究[D]. 太原:中北大学,2015.
LI Yanan. Research on suppression of metal powder explosion by NH₄H₂PO₄ [D]. Taiyuan: North University of China, 2015.
[16] 伍毅,袁旌杰,蒯念生. 碳酸盐对密闭空间粉尘爆炸压力影响的试验研究[J]. 中国安全科学学报, 2010, 20(10): 92-96.
WU Yi, YUAN Jingjie, KUAI Niansheng. Effects of carbonates on dust explosion pressure in closed vessel[J]. China Safety Science Journal, 2010, 20(10): 92-96.
[17] AMYOTTE P R. Solid inertants and their use in dust explosion prevention and mitigation[J]. Journal of Loss Prevention in the Process Industries, 2006, 19: 161-173.

弯管内铝粉二次爆炸及抑爆试验研究^*

Experimental study on secondary explosion of aluminum powder in elbow pipeline and its suppression

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