摘要
雾滴分布特征是决定果园喷雾打药效果的关键因素之一。为研究不同工况下雾滴分布特征,以湖南农业大学机电工程学院与湖南农友机械集团有限公司联合研发的拖拉机悬挂式环形喷管喷雾机为研究对象,设计多因素实验分析了喷雾角度、喷雾流量和目标距离对雾滴分布特征的影响机制。研究结果表明:不同流量和喷雾角度对果园喷雾流场的复合影响,造成喷雾效果的变化,当雾机的喷头角度选择为60°、流量在10~15 L/min之间、工作距离在0.75~1.25 m时有较好的工作效果,在设定条件范围内的附着雾滴效果变异系数在18.22%,符合作业要求,为机具优化提供理论基础。
The distribution characteristics of fog droplets is one of the key factors determining the effect of spraying pesticides in orchards.In order to study the distribution characteristics of fog droplets under different working conditions,the tractor-mounted suspended circular sprayer jointly developed by the College of Mechanical and Electrical Engineering of Hunan Agricultural University and Hunan Nongyou Machinery Group Co.,Ltd.was taken as the research object,and a multi-factor experiment was designed to analyze the influence mechanism of the spraying angle,spraying flow rate and target distance on the distribution characteristics of fog droplets.The research results showed that:the combined influence of different flow rates and spraying angles on the spray flow field in the orchard led to the change of the spraying effect.When the spray head angle of the fog machine was selected as 60°,the flow rate was between 10~15 L∕min,and the working distance was between 0.75~1.25 m,a better working effect could be achieved.The coefficient of variation of the effect of the attached fog droplets within the range of the set conditions was 18.22%,which met the operation requirements and provided a theoretical basis for the optimization of the machinery.
作者
刘昊源
李玉成
孙超然
谭绍辉
邓佳
LIU Haoyuan;LI Yucheng;SUN Chaoran;TAN Shaohui;DENG Jia(College of Mechanical and Electrical Engineering,Hunan Agricultural University,Changsha 410218,Hunan,China;Hunan Agricultural Machinery Affairs Center,Changsha 410035,Hunan,China)
出处
《农业装备与车辆工程》
2025年第5期24-29,共6页
Agricultural Equipment & Vehicle Engineering
基金
湖南省科学技术厅科技重大专项“丘陵山地适用高效智能农机装备研发”(2023NK1020)。
关键词
果园打药
环形喷雾
雾滴分布
多因素试验
orchard spraying
ring spray
droplet distribution
multifactor test
作者简介
刘昊源(2000-),男,硕士研究生,研究方向:农业机械技术及智能装备。E-mail:1186572739@qq.com。
