Experimental study on the synergistic inhibition effect of gas-liquid two phase medium on gas explosion
Experimental study on the synergistic inhibition effect of gas-liquid two phase medium on gas explosion
复制标题
气液两相介质对瓦斯爆炸协同抑制作用的实验研究
DOI：
10.1016/j.jlp.2016.12.008
复制
发表时间：
2017-09-01
影响因子：
3.5
通讯作者：
Zhu, Xinna
中科院分区：
文献类型：
--
作者：
Pei, Bei;Yu, Minggao;Zhu, Xinna
在半密闭透明爆炸容器中进行了N-2、CO2和超细水雾对甲烷/空气爆炸的协同抑制实验。当气液两相介质用量减少时，火焰的最大传播速度、最高温度和最大超压均显著降低。CO2与超细水雾的协同抑制效果优于N-2。在本研究中，需要14%的N-2或CO2和2 min的喷雾时间才能达到较好的抑制效果，如最大超压下降69.8%和74.4%；最高气温降幅分别为43.4%和51.9%；火焰的最大传播速度分别为2.13 ~ 3.6 m s（-1）。本研究的实验结果可以为利用水雾阻尼系统进行抑爆工程的设计提供潜在的参考。(C) 2016 Elsevier Ltd.版权所有。
Experiments of synergistic inhibition effects by N-2 or CO2, and ultrafine water mist on methane/air explosion were carried out in a semi-confined transparent explosion vessel. The maximum flame propagation speed, maximum temperature, and maximum overpressure were found to be significantly decreased in the presence of a lower amount of gas-liquid two phase medium. It was also found that the CO2 had a better synergistic inhibiting effect with the ultrafine water mist than the N-2. In the present study, 14% N-2 or CO2 and 2 min mist spraying time were necessary to achieve better inhibition effects, such as declines of the maximum overpressure were 69.8% and 74.4%; and the declines of the maximum temperature were 43.4% and 51.9%; and the maximum flame propagation speed was between 2.13 m.s(-1) and 3.6 m.s(-1), respectively. The experimental results obtained from the present study could potentially facilitate the designs of explosion suppression engineering using water mist inerting systems. (C) 2016 Elsevier Ltd. All rights reserved.