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100 μm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。
Abstract
In order to study the performance of the rotatingcage 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.
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参考文献
[1]佘大庆.我国植物保护机械现状及发展战略研究[D].陕西:西北农林科技大学,2009.
[2]胡映泉.森林病虫害防治现状与对策[J].山西科技,2006(2):115-116.
[3]叶建仁.中国森林病虫害防治现状与展望[J].南京林业大学学报,2000,24(6):1-5.
[4]徐汉虹,张志祥,程东.生物农药的发展优势及存在问题[J]世界农药,2004,26(2):5-10.
[5]田索芬,顾晓军.二十一世纪农业仍然需要农药[J].西北农业学报,2006,9(2):132-134.
[6]施跃峰.生物农药及我国的产业发展[J].安徽科技,2001(8):17-18.
[7]秦雪峰,孔凡彬.生物农药的应用现状及前景[J].安徽农业科学,2006,34(16):4024,4057.
[8]朱昌雄,白新疆,张木.生物农药的发展现状及前景展望[J].上海环境科学,2002,21(11):654-658.
[9]Cooke L. Smart sprayer selects weeds for elimination[J]. Agricultural Research,1996,44(4):15.
[10]Estey R H. Canadian use of aircraft for plant protection[J]. Phytoprotection, 2004,85(1):7-12.
[11]刘建.炮塔式离心雾化风送远射程喷雾技术及机具的研究设计[D].陕西:西北农林科技大学,2004.
[12]李英,张晓辉.浅析雾滴尺寸的取决因素及其对喷雾效果的影响[J].农业装备技术,2003,29(5):35-36.
[13]陈福良,尚鹤言.雾滴大小和喷雾效果[J].植物保护,1994,20(3):44.
[14]汤伯敏,梁建.塑料温室内的雾滴沉积分布研究[J].农业机械学报,2004,35(3):72-75.
[15]张凯雄,李东梅,熊先梅.农药喷洒分布量和沉积量研究试验初报[J].湖北植保,2002(3):12.
[16]邱白晶,吴昊,汤伯敏,等.密闭空间药雾浓度测量的试验方法研究[J].农业工程学报,2007,23(12):18-23.
[17]Lawse Laneng. Electrostatic deposition of pesticide sprays onto ionizing targets: charge and masstransfer analysis [J]. IEEE, Transaction on Industry Applications, 1982, 18(6): 673-679.
基金
收稿日期:2011-09-15修回日期:2012-04-20
基金项目: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)
第一作者:宋伟,硕士生。*通信作者:周宏平,教授。E-mail: hpzhou@njfu.edu.cn。
引文格式:宋伟,周宏平,张慧春,等. 转笼式生物农药雾化喷头的性能分析[J]. 南京林业大学学报:自然科学版,2012,36(5):133-136.