| 管内低浓度抽采瓦斯爆燃控制方法研究 |
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| 引用本文： | 王莹,宋正昶,马龙信,倪硕硕,王思文. 管内低浓度抽采瓦斯爆燃控制方法研究[J]. 煤矿安全, 2012, 43(8): 18-22 |
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| 作者姓名： | 王莹 宋正昶 马龙信 倪硕硕 王思文 |
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| 作者单位： | 1. 中国矿业大学电力工程学院,江苏徐州,221116
2. 华电电力科学研究院,浙江杭州,310030 |
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| 摘 要： | 水雾、CO2惰性气体和干粉对瓦斯爆燃有很强的抑制作用。随着喷雾量的增大,混入CO2浓度或者喷入干粉质量的增大,火焰传播速度和峰值超压都减少。水雾,惰性气体CO2以及干粉对爆燃的抑制作用在于由于水雾、惰性气体CO2以及干粉的加入,降低了链式反应中H、O和OH等高活性自由基的浓度。
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| 关 键 词： | 低浓度抽采瓦斯 爆燃 火焰速度 峰值超压 控制 |
Study on Deflagration Control Methods of Low Concentration Gas Extraction in Tube |
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| WANG Ying,SONG Zheng-chang,MA Long-xin,NI Shuo-shuo,WANG Si-wen. Study on Deflagration Control Methods of Low Concentration Gas Extraction in Tube[J]. Safety in Coal Mines, 2012, 43(8): 18-22 |
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| Authors: | WANG Ying SONG Zheng-chang MA Long-xin NI Shuo-shuo WANG Si-wen |
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| Affiliation: | 1(1.School of Electric Power Engineering,China University of Mining and Technology,Xuzhou 221116,China; 2.Huadian Electric Research Institute,Hangzhou 310030,China) |
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| Abstract: | Water-mist,CO2 inert gas and dry powder are very effective on suppressing gas deflagration.With the increase of spray water-mist volume,the mixed CO2 concentration or sprayed dry powder quality are increased and flame propagation speed and peak overpressure are reduced.The inbibitional effect of water-mist,CO2 inert gas and dry powder on deflagration is that the injection of water-mist,CO2 inert gas and dry powder can greatly decrease the concentrations of H,O and OH in chain reaction. |
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| Keywords: | low concentration gas extraction deflagration flame speed peak overpressure control |
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