静电喷头电极对雾滴沉积效果的影响

静电喷雾技术可有效提高雾滴在作物表面的沉积率。为此,针对ARAG圆锥雾型喷头设计了一种圆锥形充电电极,实现了对雾滴感应充电的功能。对搭载该充电电极的喷头进行喷雾沉积性能试验,并对喷雾压力、充电电压和喷雾高度3个因素进行了正交试验,通过极差分析、方差分析得出了3种因素对雾滴沉积率的影响显著性由大到小依次是充电电压、喷雾压力、喷雾高度。静电喷雾雾滴的沉积效果的最优组合为:喷雾压力0.3MPa,充电电压10kV,喷雾高度50cm;该组合下的得到的最佳沉积率为60.12%。本研究为大田中的实际喷雾效果的提高提供了理论和数据的支持。

The Effect of Electrostatic Nozzle Electrode and Spray Performance Test

Electrostatic spray technology can effectively improve the droplets in the target crops , this paper aimed at the tubular type subject to routine test nozzle design conical charging electrodes , implements the charged droplets .Estab-lished in the laboratory by electrostatic nozzle spray performance test system , to spray performance test of the electrostatic sprayer , it is concluded that charged droplets on the surface of the target , deposition rate increased with the increase of charging voltage and spray pressure trend .Especially after the droplets charged in crops on the back of the effect of depo-sition rate increased significantly , the spray pressure is 0 .35 MPa , charging voltage to get thebest for 8 kv droplets depo-sition rate, positive was 34.78%, the reverse side is 10.62%.By means of optimization for electrostatic spray charging voltage and spray pressure , the improvement of the actual effect of spray in field provides data support .