广角内混式空气雾化喷嘴雾化特性研究  

Study on Atomization Characteristics of Wide-angle Internal Mixing Air Atomizing Nozzle

作　　者：刘刚[1] 董羽[1] 史俊伟[1] 李立峰[1] 陈章良[1] LIU Gang;DONG Yu;SHI Junwei;LI Lifeng;CHEN Zhangliang(School of Management Science and Engineering,Shandong Technology and Business University,Yantai 264005,China)

机构地区：[1]山东工商学院管理科学与工程学院,山东烟台264005

出　　处：《煤矿安全》2018年第10期30-33,共4页Safety in Coal Mines

基　　金：山东省自然科学基金资助项目(ZR2017MEE019);山东省社科规划研究资助项目(17CGLJ04);山东工商学院博士启动基金资助项目(BS201522);山东工商学院青年基金资助项目(2015QN014)

摘　　要：为分析广角内混式空气雾化喷嘴雾滴场的雾化特性,采用马尔文高速喷雾粒度分析系统对雾滴场雾化特性进行实验研究。实验结果表明:在宏观雾化特性方面,供水压力和供气压力的变化分别对喷嘴的雾化角和射程的占主导作用;在细观雾化特性方面,沿轴线方向随着距离增大雾滴粒径不断增大,沿径向方向随着距离喷嘴轴线增大雾滴粒径不断增大。实验及现场试验表明,当气液压比值为1.5左右,气压为0.6 MPa、水压为0.4 MPa时,喷嘴雾场内雾滴粒径更适宜捕捉粉尘,转载点现场应用后的全尘和呼尘的降尘率较原喷雾压力下分别提高了21.66%、20.05%。In order to analyze the atomization characteristics of droplet field of wide angle mixing air atomizing nozzle, the Malvin high-speed spray particle size analysis system was applied to compare the atomization characteristics parameters of the droplet field. The experimental results show that the variation of water supply pressure and air supply pressure played a dominant role in atomizing angle and range of nozzle respectively in terms of macroscopic atomization characteristics; the droplet size increases as the distance increase in the axis direction, and the droplet size increases with the increase of distance from the nozzle axis in the radial direction in terms of microscopic atomization characteristics. Experiments and field tests show that when the gas-liquid ratio is about 1.5, the air pressure is 0.6 MPa, and the water pressure is 0.4 MPa, the particle size of fog drops in the nozzle fog field is more suitable for dust capture. The dust removal rate of total dust and exhaled dust increased by 21.66% and 20.05%respectively compared with the original spray pressure after field application of the transfer point.

关 键 词：空气雾化喷嘴 雾化角 射程 雾滴粒径 气液压比值 粉尘治理 防尘措施 

分 类 号：TD714.4[矿业工程—矿井通风与安全]