细水雾影响瓦斯爆炸浓度下限的实验研究  

Study on Experiments of Influencing Gas Explosion Lower Limit by Water Mist

作　　者：李定启[1] 吴强[1] 余明高[2] 

机构地区：[1]黑龙江科技学院安全工程学院,黑龙江哈尔滨150027 [2]河南理工大学安全科学与工程学院,河南焦作454003

出　　处：《煤矿安全》2008年第11期5-7,10,共4页Safety in Coal Mines

基　　金：河南省煤矿瓦斯与火灾防治重点实验室开放基金资助项目(HKLGF200705);黑龙江省教育厅科学技术研究项目(11533055);国家自然科学基金资助项目(50476033);河南省杰出人才创新基金资助项目(0421000800)

摘　　要：采用自制瓦斯爆炸实验系统进行实验,将相同实验条件下没有施加细水雾时测定的爆炸下限值作为参照值进行比较,通过改变瓦斯爆炸实验管道中细水雾的密度和粒径来研究不同物理状态的细水雾对瓦斯爆炸下限的影响。实验表明:在施加细水雾的条件下,瓦斯爆炸浓度下限值有明显的升高,且在细水雾密度较大和平均粒径较小时瓦斯爆炸浓度下限升高值较大。最后在实验结论的基础上提出了细水雾技术在矿井瓦斯防治方面应用前景。By using selfmade gas explosion prevention experiment system, the impact on gas explosion lower limit is study when exerting water mist in explosion experiment pip and changing its density and size, and comparing the experiment result under the same experiment situation when exerting no water mist. It is proved that gas explosion lower limit is improved evidently when exerting water mist. And water mist is more effective when its density is large and its size is less. Based on those experiment results the anticipating application on mine gas prevention is put forward in the end.

关 键 词：实验研究 瓦斯防治 细水雾 爆炸下限 

分 类 号：TD712.7[矿业工程—矿井通风与安全]