Experimental study on electrostatic spraying device with better deposition
JIA Wei-Dong-1, LI Cheng-1, WANG Zhen-Tao-2
(1.Key Laboratory of Modern Agricultural Equipment and Technology, Ministry of Education, Jiangsu University, Zhenjiang, Jiangsu 212013, China; 2.College of Energy and Power Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China)
Abstract：Integrating with both the highvoltage electrostatic spray and the axialflow airassisted spray technique, an electrostatic spray device with better deposition for greenhouses was developed.The axial flow velocity, droplet diameter and deposition rate were tested in laboratory. The results show that the axial flow can improve the spray coverage effectively, and plays a significant role in increasing the deposition rate of chemical droplets in the ranges close to the nozzle. In general, when this device is operated at a pressure of 0.4 MPa and a voltage of 40 kV, it can produce smaller droplets by the combined effect of static electricity and axial flow. The axial flow can screen and transport small droplets, causing the droplets have more uniform size distributions in the middle of axial spray range. The distance between a plant and the nozzle depends on the combination between static electricity and axial flow, eventually it affects the deposition rate. For the device, if such a distance is reasonable, a deposition rate that is not less than 50% can be obtained.
贾卫东, 李成, 王贞涛. 高沉积静电喷雾装置试验研究[J]. 排灌机械工程学报, 2012, 30(2): 244-248.
JIA Wei-Dong, LI Cheng, WANG Zhen-Tao. Experimental study on electrostatic spraying device with better deposition. Journal of Drainage and Irrigation Machinery Engin, 2012, 30(2): 244-248.
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