静电喷雾雾滴荷电特性研究  

Study on the electric charge characteristics of electrostatic spray droplets

作　　者：王黎光[1] 刘芹[1] 马啸宇 冯俊琨 Wang Liguang;Liu Qin;Ma Xiaoyu;Feng Junkun(Department of Electrical Engineering,Sichuan Water Conservancy Vocational College,Chengdu,611231,China)

机构地区：[1]四川水利职业技术学院电力工程学院,成都市611231

出　　处：《中国农机化学报》2025年第3期59-63,共5页Journal of Chinese Agricultural Mechanization

基　　金：四川省水利厅科研项目(KY2019—01)。

摘　　要：为进一步降低静电喷雾设备的静电电压,提升静电喷雾设备绝缘可靠性和安全性,设计在1~8 kV负高压静电电压下进行静电喷雾试验。通过改变静电喷雾时的静电电压、喷雾压力、静电环直径、静电环线圈宽度等参数,计算静电喷雾雾滴的荷质比。绘出雾滴荷质比随电压、电极环直径和匝数的变化曲线,对不同条件下的荷质比进行理论分析,对比不同试验条件下荷质比的变化趋势。通过对比,选取荷质比相对稳定的静电电压、喷雾压力、静电环直径、线圈宽度等参数。试验表明:静电电压在3~7 kV,喷雾压力为0.3 MPa,电极环直径为25 mm,线圈宽度为20匝时,荷电效果比较明显且相对稳定。为下一步研发和改进静电喷雾机具提供参考依据。To further reduce the electrostatic voltage of electrostatic spray equipment and improve the insulation reliability and safety,an electrostatic spray experiment is designed with a negative high-voltage electrostatic voltage range of 1-8 kV.By changing the electrostatic voltage,spray pressure,electrostatic ring diameter,electrostatic ring coil width and other parameters of electrostatic spray,the charge-to-mass ratio of the droplets under each parameter is calculated.The relationship between the charge-to-mass ratio and the voltage,electrode ring diameter,and number of coil turns is plotted,and theoretical analysis of the charge-to-mass ratio under different conditions is conducted.The variation trends of the charge-to-mass ratio under different conditions are compared.By comparison,the electrostatic voltage,spray pressure,electrode ring diameter,and coil width parameters with relatively stable charge-to-mass ratio are selected.The results show that when the electrostatic voltage is between 3 kV and 7 kV,the spray pressure is 0.3 MPa,the electrode ring diameter is 25 mm,and the coil width is 20 turns,the charging effect is significant and relatively stable.These data provide a reference for further development and improvement of electrostatic spray machines.

关 键 词：静电喷雾 荷电量 荷质比 电极环 极距 

分 类 号：S491[农业科学—植物保护] S126