基于Hartmann哨超声喷嘴的雾化特性研究

发布时间：2017-12-28 06:34

本文关键词：基于Hartmann哨超声喷嘴的雾化特性研究　出处：《真空科学与技术学报》2016年03期 　论文类型：期刊论文

【摘要】：介绍了一种基于Hartmann哨的超声雾化喷嘴。通过激光粒度分析仪对喷嘴的雾化特性进行了实验研究,分析了不同气压对雾滴索特平均直径(SMD)、雾化角和用水量的影响。对喷嘴加装了中心杆,对比了有无中心杆对于雾滴SMD的影响。研究表明:随着气压的增大,雾滴SMD显著减小,雾化角增大,而气压在0.5 MPa时两者达到极值并趋于稳定;喷嘴加入中心杆,并在气压达到一定值后,雾滴SMD有了明显的减小,最小雾滴SMD可以达到12μm;在气压为0.5 MPa,用水量最少,雾化效果最佳。
[Abstract]:An ultrasonic atomizing nozzle based on Hartmann whistle is introduced. The laser particle size analyzer atomization characteristics of nozzles were studied, analyzed the different pressure on the droplet Sauter mean diameter (SMD), spray angle and water use effect. The central rod was added to the nozzle, and the effect of a central rod on the droplet SMD was compared. Research shows that with the increase of the pressure drop, SMD decreased significantly, the spray angle increases, and the pressure at 0.5 MPa both reached maximum, and tends to be stable; the nozzle joined the center rod, and reaches a certain value in the air after the droplet SMD is obviously reduced, the smallest droplet can reach 12 SMD at the pressure of M; 0.5 MPa, with the least amount of water, the best atomization effect.
【作者单位】：太原理工大学机械工程学院;山西省矿山流体控制工程(实验室)技术研究中心;
【基金】：国家自然科学基金联合基金资助项目(U1261107)
【分类号】：X964
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