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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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Received: 25 March 2019
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2020, Vol. 41 
