狭长受限空间油气爆炸抑制实验研究

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振动与冲击 ›› 2017, Vol. 36 ›› Issue (10) : 51-56.

论文

狭长受限空间油气爆炸抑制实验研究

魏树旺，蒋新生，徐建楠，何标，齐圣，王世茂

作者信息 +

Experiment Study on Gasoline-Air Mixture Explosion Suppression in Long-Narrow Confined Space

Wei Shu-wang, Jiang Xin-sheng, Xu Jian-nan, He Biao, Qi Sheng , Wang Shi-mao

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摘要

为研究气态抑爆介质对油气爆炸的抑制作用，搭建了狭长受限空间油气爆炸抑制实验系统。以二氧化碳和七氟丙烷（FM200）作为抑爆介质，进行了油气爆炸抑制实验，与无抑爆介质条件进行了对比，并分析了爆炸超压值、升压速率、火焰传播速度、火焰强度以及爆炸产物等特性参数变化情况。实验结果表明：当以二氧化碳和七氟丙烷作为抑爆介质时，最大超压值分别下降28.85%和42.54%，最大升压速率分别下降11.62%和16.04%，火焰传播速度分别下降60.69%和89.23%，火焰持续时间缩短，火焰强度减弱；在相同条件下，七氟丙烷的抑爆效果优于二氧化碳。

Abstract

In order to study the effect of gaseous explosion suppressant on gasoline⁃air mixture explosion, an experiment system of gasoline⁃air mixture explosion suppression in long-narrow confined space was set up. Carbon dioxide and heptafluoropropane(FM200) were chosen as explosion suppressant. The gasoline⁃air mixture explosion suppression experiment was systematically conducted and was compared with experiment under no explosion suppressant condition. The changes of overpressure, rate of pressure rise, flame propagation velocity, flame intensity and explosive products were analyzed. Experiment results indicate that when carbon dioxide and FM200 were chosen as explosion suppressant, the maximum overpressure declined by 28.85% and 42.54%; The maximum rate of pressure rise decreased by 11.62% and 16.04%. The flame propagation velocity declined by 60.69% and 89.23% respectively. Meanwhile, flame duration was shortened and flame intensity was weakened. When all other conditions remained stable, the explosion suppression effect of FM200 was better than that of carbon dioxide.

关键词

油气爆炸

/ 模拟实验 / 抑爆介质 / 主动抑爆

Key words

gasoline?air mixture explosion / simulation experiment / explosion suppressant；active explosion suppression

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魏树旺，蒋新生，徐建楠，何标，齐圣，王世茂. 狭长受限空间油气爆炸抑制实验研究[J]. 振动与冲击, 2017, 36(10): 51-56

Wei Shu-wang, Jiang Xin-sheng, Xu Jian-nan, He Biao, Qi Sheng,Wang Shi-mao. Experiment Study on Gasoline-Air Mixture Explosion Suppression in Long-Narrow Confined Space[J]. Journal of Vibration and Shock, 2017, 36(10): 51-56

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