内混式空气雾化喷嘴喷雾性能试验研究  

Experimental Study on Spray Performance of Internal Mixed Air Atomizing Nozzle

作　　者：郭荆璞 安士杰[1] 刘振明[1] 王小川[1] 陈佳豪 GUO Jing-pu;AN Shi-jie;LIU Zhen-ming;WANG Xiao-chuan;CHEN Jia-hao(School of Power Engineering,Naval University of Engineering,Wuhan 430033,China)

机构地区：[1]海军工程大学动力工程学院,武汉430033

出　　处：《武汉理工大学学报》2017年第6期78-81,共4页Journal of Wuhan University of Technology

基　　金：国家自然科学基金青年项目(51609250)

摘　　要：采用激光粒度仪对一种大流量内混式空气雾化喷嘴的雾化性能进行了试验研究。试验主要测量了沿喷嘴出口轴线不同距离、喷雾束不同径向距离以及不同气相压力、液相压力下液滴粒径分布。测量结果表明,喷雾超过一定距离后,液滴索特平均直径(SMD)会随着距离的增大而增加,喷雾束的中心至外围的液滴SMD是逐渐增加的,在一定范围内,气相压力增加可使SMD减小,高于0.5 MPa后,SMD保持稳定,液相压力增加令SMD和水流量都增大。The atomization performances of an internal mixed air atomizing nozzle with large flow were studied by a la- ser particle size analyzer. The distribution of droplet size was measured at the different distances along the nozzle outlet axis, the different radial distances of the spray beam, and different gas and liquid pressures. The experimental results show that the Sauter mean diameter（SMD）of droplet increases with the distance along the nozzle outlet axis, the SMD of the droplet gradually increases from the center to the periphery of the spray beam. Within a certain range, the SMD of the droplet decreases along with the increase of the gas pressure. When the air pressure is higher than 0.5 MPa, the SMD of the droplet remains stable. Both the SMD of the droplet and water flow increase with the increase of liquid pressure.

关 键 词：空气雾化喷嘴 激光粒度仪 索特平均直径(SMD) 液滴粒径分析 

分 类 号：U674.7[交通运输工程—船舶及航道工程] TK421[交通运输工程—船舶与海洋工程]