含菌-无机盐超细水雾抑制甲烷爆炸试验研究

doi:10.16265/j.cnki.issn1003-3033.2019.01.011

中国安全科学学报 ›› 2019, Vol. 29 ›› Issue (1): 62-67.doi: 10.16265/j.cnki.issn1003-3033.2019.01.011

含菌-无机盐超细水雾抑制甲烷爆炸试验研究

杨克¹ 副教授, 张平¹, 邢志祥^**1 教授, 纪虹² 讲师, 周越¹, 王壮¹

1 常州大学环境与安全工程学院,江苏常州 213164;
2 常州大学石油工程学院,江苏常州 213106

收稿日期:2018-09-25 修回日期:2018-11-26 出版日期:2019-01-28 发布日期:2020-11-23
通讯作者: **邢志祥(1967—),男,江苏南通人,博士,教授,主要从事消防安全与应急管理工作。E-mail:xingzhixiang@cczu.edu.cn。
作者简介:杨克 (1982—),男,山西陵川人,博士,副教授,主要从事消防安全、工业过程安全等方面的研究。E-mail:yangke728@163.com。
基金资助:
国家自然科学基金资助(51704041,51574046);江苏自然科学基金资助(BK20150269);国家安监总局安全生产重大事故防治关键技术科技项目(Jiangsu-0015-2017AQ)。

Experimental study on suppression of methane explosion with ultra-fine water mist containing both optimized methane oxidizing bacteria and inorganic salt

YANG Ke¹, ZHANG Ping¹, XING Zhixiang¹, JI Hong², ZHOU Yue¹, WANG Zhuang¹

1 School of Environment and Safety Engineering, Changzhou University, Changzhou Jiangsu 213164, China;
2 School of Petroleum Engineering, Changzhou University, Changzhou Jiangsu 213106, China

Received:2018-09-25 Revised:2018-11-26 Online:2019-01-28 Published:2020-11-23

摘要/Abstract

摘要： 为进一步提高超细水雾抑制甲烷爆炸的效率,搭建抑制甲烷爆炸试验平台,开展用含甲烷氧化菌-无机盐超细水雾降解与抑爆甲烷的试验研究,考虑降解时间、第1次通雾量、第2次通雾量等3个因素进行正交试验,分析不同试验条件下甲烷爆炸压力和火焰传播过程。结果表明:改性培养基中的甲烷氧化菌降解甲烷效果优于普通培养基;降解时间对甲烷最大爆炸超压ΔP_max有显著影响,第2次通雾量对甲烷最大爆炸超压ΔP_max有一定影响;降解时间对火焰平均传播速度有显著影响,第2次通雾量对火焰平均传播速度有一定影响;同时增加降解时间和第2次通雾量可以降低平均升压速率和火焰平均传播速度。

关键词: 甲烷氧化菌, 甲烷, 超细水雾, 正交试验, 火焰, 降解时间, 通雾量

Abstract: To further improve the suppression efficiency of ultra-fine water mist on methane explosion, methane-air explosion inhibition experiments were carried out by using a experiment platform. In the experiments, ultra-fine water mists containing methane-oxidizing bacteria-inorganic salts were used as the inhibitors. Three factors including the degradation time, the first spraying volume and secondary spraying volume were taken into consideration, and orthogonal experiments were carried out. The methane explosion pressure and flame propagation process under different experiment conditions were analyzed. The experimental results show that the effect of methane-oxidizing bacteria degradating methane in the modified medium is better than that in the normal medium;the degradation time has a significant influence on the maximum explosion overpressure ΔP_max of methane-air mixture, the secondary spraying volume has a certain influence on the maximum explosion overpressure ΔP_max of methane-air mixture. The degradation time has a significant influence on the average flame propagation speed,the secondary spraying volume has a certain influence on the average flame propagation speed. Simultaneous increasing both the degradation time and the secondary spraying volumecan reduce both the average pressure increasing rate and the average flame propagation speed.

Key words: methane oxidizing bacteria, methane, ultra-fine water mist, orthogonal experiment, flame, degradation time, spraying volume time

中图分类号:

X932

杨克, 张平, 邢志祥, 纪虹, 周越, 王壮. 含菌-无机盐超细水雾抑制甲烷爆炸试验研究[J]. 中国安全科学学报, 2019, 29(1): 62-67.

YANG Ke, ZHANG Ping, XING Zhixiang, JI Hong, ZHOU Yue, WANG Zhuang. Experimental study on suppression of methane explosion with ultra-fine water mist containing both optimized methane oxidizing bacteria and inorganic salt[J]. China Safety Science Journal, 2019, 29(1): 62-67.

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含菌-无机盐超细水雾抑制甲烷爆炸试验研究

Experimental study on suppression of methane explosion with ultra-fine water mist containing both optimized methane oxidizing bacteria and inorganic salt

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