转笼式生物农药雾化喷头的性能分析  

Performance analysis on rotating-cage spraying atomizer of biological pesticide

作　　者：宋伟[1] 周宏平[1] 张慧春[1] 郁金[1] 戴子华[1] 

机构地区：[1]南京林业大学机械电子工程学院,江苏南京210037

出　　处：《南京林业大学学报（自然科学版）》2012年第5期133-136,共4页Journal of Nanjing Forestry University：Natural Sciences Edition

基　　金：国家林业公益性行业科研专项项目(200904051);国家林业局"948"项目(2007-4-20);江苏高校优势学科建设工程资助项目(PAPD)

摘　　要：从理论上阐述转笼式离心雾化的原理,以及雾滴直径的最佳范围;通过对常温清水和生物农药白僵菌进行试验,分析了转笼的直径、丝网孔数、转笼转速、流量和压力等参数对转笼式离心雾化喷头雾化效果的影响。结果表明:雾滴粒径总体在100μm左右,生物农药的活性均在75%以上。收集位置越远,雾滴粒径越大,活性越低;随着转速、丝网孔数和直径的增大,粒径都是呈先增大后减小的趋势,而对活性影响不大;泵出口压力越大,活性越低。In order to study the performance of the rotating-cage spraying atomizer of biological pesticide.Firstly,the atomizing principle of cage,and the optimal range of the droplet diameter were proposed theoretically.Secondly,the experiment of normal temperature water and biological pesticide white muscardine fungi was performed along with the change of the mesh number,cage diameter,flow rate,motor rotational speed and the spraying pressure,the achieved atomization effect was analyzed.The results showed that the diameter of the droplet was about 100 μm and the activity of biological pesticide was up to 75 %.The farther collected location was,the bigger droplet diameter was and the lower activity was.The diameter of droplet increased firstly and then decreased with the increase of the rotating velocity,mesh number and the cage diameter,but there was no impact on the activity.The larger pressure was,the lower activity was.

关 键 词：生物农药 转笼喷头 雾滴直径 活性 

分 类 号：S491[农业科学—植物保护]