本文關鍵詞： 氣水噴霧 相位多普勒干涉儀 粉塵防治 霧場粒度 霧場速度　出處：《煤礦安全》2017年12期 　論文類型：期刊論文

【摘要】：為了分析供氣供水壓力對煤礦井下氣水噴霧粒度速度的影響,針對粉塵的性質特點以及危害類型,成功地設計并進行氣水霧化噴嘴霧化特性實驗。實驗運用全新一代的相位多普勒干涉儀(PDI),從噴嘴所成霧場的宏觀特性和微觀特性2個方面對噴嘴的霧化效果進行了分析,確定了不同條件下噴嘴所成霧場中霧滴粒徑及速度分布規(guī)律。通過對實驗數據的分析,得出在水壓不變的情況下,隨著氣壓的增加,霧滴粒徑逐漸減小;沿霧場的軸線方向,隨著測點與噴嘴間距離的增大,霧滴粒徑呈增大趨勢,霧滴軸向分速度及徑向分速度都隨之減小。
[Abstract]:In order to analyze the influence of the pressure of gas supply and water supply on the particle size velocity of gas-water spray in coal mine, the characteristics and hazard types of dust are analyzed. A new generation of phase Doppler interferometer (PDI) was used to test the atomization characteristics of gas-water atomizing nozzle successfully. The atomization effect of the nozzle was analyzed from two aspects: macroscopic and microscopic characteristics of the atomizing field formed by the nozzle. The distribution law of droplet diameter and velocity in the fog field formed by the nozzle under different conditions is determined. Through the analysis of the experimental data, it is concluded that the droplet diameter decreases gradually with the increase of air pressure under the condition of constant water pressure. Along the axis of the fog field, with the increase of the distance between the measuring point and the nozzle, the droplet size increases, and the axial and radial velocity of the droplet decreases.
【作者單位】： 山東科技大學礦業(yè)與安全工程學院;棗莊礦業(yè)集團七五煤礦;
【基金】：國家重點研發(fā)計劃課題資助項目(2017YFC0805202) 國家自然科學基金面上資助項目(51774198) 青島市科技計劃資助項目(16-6-2-52-nsh)
【分類號】：TD714.4
【正文快照】： 近些年來,國內大量學者對噴嘴霧化特性做了大量的實驗[1-7]。馬素平、寇子明等對噴霧降塵的機理做出了深入研究[8]。陳斌等利用自行設計的實驗平臺對噴嘴霧化特征做出了實驗研究。程衛(wèi)民、周剛等針對高壓噴霧霧化粒度的降塵性能做出了研究和分析[9]。魏琪、岑旗鋼等搭建了相位，

本文編號：1467648