摘要 为了使转笼喷头的雾滴粒径与作业要求更好地契合，进一步提高雾滴的沉积特性、提升防治效率，研究了影响作业性能的关键因素，包括转笼转速和雾化性能（雾滴粒径分布）.在高速风洞中建立转笼喷头转速测量系统，获取不同风速、桨叶安装角度和桨叶长度条件下的叶片式转笼喷头转速数据，进而分析各因素对转笼喷头转速的影响规律；建立电驱动转笼喷头雾滴粒径试验系统，测量了2种电动式转笼喷头CYD-1和CYD-2在不同转笼转速、喷雾流量条件下的雾滴粒径，利用SPSS软件分析转笼转速、喷雾流量和转笼直径对雾滴粒径的影响规律，并根据试验结果建立回归模型.结果表明：转笼转速随着风速增大而增大，随着桨叶角度的增大而减小，随着桨叶长度的增大而增大，且2种叶片式转笼喷头转速在100~11 000 r ·min-1均有分布；对转笼喷头雾滴粒径的影响由大到小为转笼转速、喷雾流量、转笼直径；得到了多元线性回归方程，比较拟合曲线与实际数据的差异，验证了转笼喷头雾滴粒径多元线性回归模型的可行性.
Abstract：To make the droplet particle size of rotary cage nozzle better fit the work requirements for improving the characteristics of droplet deposition and improving the prevention and control efficiency, the effects of rotary speed and atomization performance (droplet particle size distribution) on the working performance were investigated. The rotary speed measurement test system was established in the high-speed wind tunnel, and the rotary speed data of blade type rotary cage nozzle under different wind speeds, blade installation angles and blade lengths were measured to analyze the influence law of various factors on rotary speed. The droplet size test system was established, and the droplet sizes of the two electric rotary cage nozzles of CYD-1 and CYD-2 were measured under different rotary speeds and spray flows. The SPSS software was used to analyze the effects of rotary speed, spray flow and rotary cage diameter on the droplet size of rotary cage nozzle, and the regression model was established based on the experimental results. The results show that the rotary speed of nozzle is increased with the increasing of wind speed, decreased with the increasing of blade angle and increased with the increasing of blade length. The rotary speeds of two blade type rotary cage nozzles are distributed from 100 to 11 000 r·min-1. The decreasing influence sequence of three factors on the droplet size of rotary cage nozzle is rotary speed, spray flow and rotary cage diameter. The multiple linear regression equations are obtained to compare the fitting curves with actual data, and the feasibility of multiple linear regression model for droplet size of rotary cage nozzle is verified.
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2020, Vol. 41 
