Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Journal of Forestry Engineering》 2018-01
Add to Favorite Get Latest Update

Droplet deposition effect of the combined nozzles of boom sprayer based on function model

XU Yahui;XU Linyun;ZHOU Hongping;LIN Huan;YIN Yue;College of Mechanical and Electronic Engineering,Nanjing Forestry University;  
The uniformity of droplet deposition will obviously affect the utilization and the effect of pesticides application when spraying with boom sprayer in the field. At present,there are fewaccurate prediction models for the study on the droplet deposition of spray nozzles. We studied the atomization pattern of different nozzle orifice size under different spray height of 50 cm and 70 cm with an aim to carry out the function fitting of droplet deposition of single plane fan-shaped nozzle in aspects of XR8002,XR8004 and XR8006 produced by American Tee Jet Company with the pressure of 0. 2 MPa. The volume median diameter was measured by laser particle sizer,and every volume median diameter of different position and different height were recorded and analyzed. The droplet deposition distributions of three nozzles at two spray heights all obey the Fourier function. The distribution pattern of single nozzle and combined nozzles were also studied through the established model of droplet deposition. The results showed that for a wide flat fan nozzle of the same type,such as XR8002,XR8004 and XR8006,the smaller the nozzle size,the higher the spray height was required for complete atomization. When the spray height was 50 cm,the best installation distance to obtain ideal droplet deposition for all three types of nozzles were 65 cm. When the spray height was 70 cm,the best installation distance of XR8004 and XR8006 were both 75 cm,while the better mounting space of XR8002 was 70-75 cm. The function models of droplet deposition of single nozzle or combined nozzles based on Fourier function had a higher accuracy. This paper provides a theoretical method to obtain the best mounting space for boom sprayer.
【Fund】: 国家林业局“948”项目(2015-4-56)
【CateGory Index】: S491
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved