感应式荷电细水雾荷质比影响规律研究

发布时间：2018-06-11 22:08

本文选题：抑制爆炸 + 荷质比　；参考：《煤炭技术》2015年05期

【摘要】：荷电细水雾可以有效地提高抑制瓦斯爆炸的效率。其中,雾滴的荷质比是细水雾抑爆效率的重要影响因素。利用网状目标法测试系统,通过改变荷电电压、电极间距、喷雾压力、环形电极的横截面积和材质,研究各种因素对水雾荷质比的影响规律。结果表明:水雾荷质比随荷电电压的升高呈现线性增长关系,随电极间距或环形电极横截面积的增大而增大;喷雾压力增大,荷质比呈现增长趋势,但增长幅度不明显;水雾荷质比不受电极环材质影响。在实验条件下,当荷电电压为7 k V、电极间距为12 mm、电极横截面积为4 mm2,喷雾压力为1.4 MPa时,雾滴荷电效果最好,荷质比为0.539 7 m C/kg。
[Abstract]:Charged water mist can effectively improve the efficiency of gas explosion suppression. The charge / mass ratio of droplets is an important factor affecting the explosion suppression efficiency of water mist. By changing the charge voltage, electrode spacing, spray pressure, cross section area and material of the ring electrode, the influence of various factors on the water mist charge / mass ratio was studied by using the network target method. The results show that the charge / mass ratio of water mist increases linearly with the increase of the charge voltage, increases with the increase of the electrode spacing or the cross section area of the ring electrode, and increases with the increase of spray pressure, but the increase of the charge / mass ratio is not obvious. The mass ratio of water mist is not affected by the material of the electrode ring. Under the experimental conditions, when the charge voltage is 7 kV, the electrode spacing is 12 mm, the electrode cross section area is 4 mm 2, and the spray pressure is 1.4 MPA, the charge effect of the droplet is the best, the charge / mass ratio is 0.539 7 m C / kg.
【作者单位】：河南理工大学安全科学与工程学院;中国矿业大学煤炭资源与安全开采国家重点实验室;
【基金】：国家自然科学基金项目(U1361205;51304071;51304073) 河南省基础与前沿技术研究计划项目(122300413210) 中国矿业大学煤炭资源与安全开采国家重点实验室开放研究基金资助项目(12KF02)
【分类号】：TD712.7

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