防风罩对喷雾喷幅影响的试验-学报编辑部-华南农业大学.PDF

第29 卷第3 期 华南农业大学学报 VoL29 , No.3 2008 年7 月 Joumal of South China Agricultural Univers iLy J吐. 2008 防风罩对喷雾喷幅影响的试验 岳学军陈姆陆永超李震王万章2 (1南方农业机械与装备关键技术省部共建教育部重点试验室，华南农业大学工程学院，广东广州 510642; 2 河南农业大学机电工程学院，河南郑州 450002) 摘要:在密闭试验室条件下，对6 种典型防风罩，进行喷雾试验，选用 320 和 200 喷头;喷头移动速度为 L 21 、 L 91 、 2.60 ， 3.30 和4.00 km/h ，研究了喷雾平均喷幅中心和雾滴沉积均匀度-结果表明 :320 喷头在不同速度下采用防风 罩#5时的喷雾平均喷幅中心比采用其他防风罩和无防风罩时平均提高了 2.60% -22.29% ;200 喷头在不同速度 下采用防风罩街时的喷雾平均啧幅中心比采用其他防风罩和无防风罩时平均提高了 2.16% -32.71%. 关键词:精确喷雾;防风罩;雾滴飘移i 喷雾平均喷~lií 中心;雾滴沉积均匀度 中图分类号:TP274; S49 文献标i只码:A 文章编号: 1001-411X(2008)03-0091-05 Experiment of Shield Effects on Spray Breadth 1 1 1 1 YUE Xue-jun , CHEN Shan , LU Yong-chao , LI Zhen , WANG 明lan-zhang2 (1 Key Laboratory of Key Technology on Agricultural Machine and Equipment ,Ministry of Education , College o[ Engineeri吨， Soulh China Agricultural Univer百ity ， Guangzhou 510642 , China; 2 College o[ Mechanical Engineering , He nan Agricultural University , Zhengzhou 450002 ,China) Abstract: The method of introducing shields had been testified to be economical and e伍cient in reducing the droplet drift caused by wind in the. process of pesticide spraying. Six different kinds of mechanical spray shields were designed and tested in this study. Spraying experiments using nozzle 320 and nozzle 200 at speeds of 1. 21 , 1. 91 , 2. 60 , 3. 30 and 4. 00 k m/h were carried out in a tightly sealed lab to test the effectiveness of 由e foils. The average spray breadth centre and droplets uniformity using each shield and with