【摘 要】
：
为了节约农药，保护环境，根据作物的生长需求进行变量施药具有很重要的意义.本篇论文设计了应用于手拉式3WY-A3型喷雾机实时混药的变量施药系统.本变量施药系统主要包括混药装置，差压式流量计，流量控制阀，控制硬件和软件，等等.我们进行了混药实验，实验结果表明农药流量范围在0.1 mL/s到0.9 mL/s范围之间；误差范围小于土5％.
【机 构】
：
华南农业大学工学院教育部重点实验室;湖南科学与工程学院电子研究所 华南农业大学工学院教育部重点实验
【出 处】
：
第二届植保机械与施药技术国际学术研讨会
论文部分内容阅读
为了节约农药，保护环境，根据作物的生长需求进行变量施药具有很重要的意义.本篇论文设计了应用于手拉式3WY-A3型喷雾机实时混药的变量施药系统.本变量施药系统主要包括混药装置，差压式流量计，流量控制阀，控制硬件和软件，等等.我们进行了混药实验，实验结果表明农药流量范围在0.1 mL/s到0.9 mL/s范围之间；误差范围小于土5％.
其他文献
Air-blast sprayer is an important method of grassland grasshopper control.This article is based on the spout, from three aspects: flow field, droplets trajectory and droplets deposition distribution,
This paper studied on the gas-liquid two-phase inducting electrostatic sprayer, which developed by Equipments and Pesticide Application Technology Center of CAU.In this paper, an artificial canopy whi
in order to investigate velocity distribution of air-flowing field of automatic air-assisted sprayer in greenhouse, a simulating model for air-assisted sprayer was developed based on CFD technology.Th
In this paper, the flow field in the air-assisted duct of boom sprayer is studied by computational fluid dynamics (CFD) technology to analyze three-dimensional simulation region consisting of internal
As a new generation of agricultural adjuvant, organsilicone adjuvant has been widely used in agricultural production.N-F100 is a sugar-modified silicone surfactant that can increase the effective depo
As a new generation of agricultural adjuvant, organsilicone adjuvant has been widely used in agricultural production.Silwet408 is a trisiloxane ethoxylate modified non-ionic surfactant, and it has exc
Silwet408 has excellent wetting and scalability, and can enhance the adhesive of liquid to increase its coverage, and reduce the spray volume and pesticide residues,improve the resistance to rain eros
The effective utilization of pesticide is very low in our country and about 60% to 80% of the pesticide are waste for mis-use.The deposition of liquid on the target plants is the main factor impacting
喷头的设计从农药使用以来经历了非常大的发展，农用喷头不再仅仅为了优化喷雾流量和喷雾角而设计。基于环境安全以及市场需求，现在得喷头设计的目标是追求能够使喷头达到一种特殊的雾化效果以及雾滴谱，使农药达到更佳的防治效果以及对非靶标最小的影响。喷头的制造技术同样取得了非常大的进展，这就使得设计工作能够更加准确的控制雾滴分布来达到市场的需求。多喷头宽喷幅喷雾需要各个喷头能够精确的重叠以产生均匀的雾滴分布。尽
基于CFD技术建立了温室无人自助风送式喷雾机风流场速度分布模拟,根据设计的温室自助风送弥雾系统确定了模拟的边界条件和相关参数,从而得到了约束条件下的温室自助风送式喷雾机风送系统的速度场分布特性。模拟结果表明,温室无人自动风送式弥雾系统气流速度场的分布特性由x向速度和y向速度共同决定。与风扇中心不同距离的垂直截面上(x截面),气流速度随着与风扇距离的增大而减小,分布曲线的形状呈"冠状形"。通过此结论