摘要
通过激光粒度分析仪和高速摄像机对压力旋流喷嘴的雾化特性进行了实验研究,分析了不同喷雾压力及喷嘴孔径对雾粒索特尔平均直径(SMD)、雾粒运动速度和雾化角的影响。研究表明:雾粒SMD及雾化角不仅随喷雾压力的增大而减小,也随喷嘴孔径的减小而减小,同时,雾粒SMD在雾场轴向方向先增大后减小,最后趋于稳定;雾粒轴向运动速度不仅随着喷雾压力的增大而增大,也随喷嘴孔径及距离的增大而减小。
The experimental study on the atomization characteristics of pressure swirl nozzle is carried out by means of laser particle size analyzer and high speed camera. The influence of different pressure and difference nozzle diameter on sauter mean diameter（ SMD）,and the atomization angle was analyzed. The results showed that the SMD and the spray angle can not only decrease with the increase of the spray pressure,but also decrease with the decrease of the nozzle aperture; at the same time,with the increase of the spray distance,the SMD increases firstly and then decreases,and finally tends to be stable; the axial velocity of spray particles increases with the increase of the spray pressure,but also decreases with the increase of the nozzle diameter and the distance.
出处
《科学技术与工程》
北大核心
2016年第7期162-164,172,共4页
Science Technology and Engineering
基金
国家自然科学基金联合基金项目(U1261107)资助
关键词
压力旋流喷嘴
喷雾压力
喷嘴孔径
雾化特性
pressure swirl nozzle
spray pressure
nozzle diameter
atomization characteristics
