Abstract
The authors have developed an improved sprayer for two-way chemical treatment of vineyards and orchards. The research aims to justify the design scheme and parameters of the sprayer. The proposed sprayer is equipped with a centrifugal fan, which directs air flow from the inlet window to two opposite sides. The distributor is designed as a truncated cone with an inlet nozzle on its small base and outlet nozzles equally spaced on its large base and connected to sprayers by flexible hoses of equal length. It is established that the diameter of the centrifugal fan wheel 630 mm, number of fan wheel rotations 1500 r/min, diameters of large and small distributor base as a truncated cone 90 mm and 18 mm respectively, the diameter of each nozzle set on its large base 3 mm, cone height 100 mm, number of atomizers 20 pieces and working liquid pressure in the system 0.40-0.45 MPa is provided a uniform distribution of working liquid.
Highlights
The advantage of the proposed sprayer compared to existing sprayers is that it is equipped with a centrifugal fan, which sucks the flow of air from the inlet window and directs it to two opposite directions
The distributor is made in the form of a truncated cone, which is connected to sprayers according to the new technological scheme
The given data show that the suggested distributor in the form of a truncated cone at a pressure within 0,1-0,8 MPa provides an almost uniform distribution of working liquid from all nozzles
Summary
The development and implementation of energy-saving and high-performance machines for soil tillage [1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20], sowing [21,22,23], and chemical treatments against crop pests and diseases [24,25,26,27] are currently leading the way worldwide. Special attention is paid to the development of machines and implements for primary and pre-sowing inter-row tillage [28] and the chemical treatment of vineyards and orchards with high work quality and efficiency [29,30]. The machines and devices for chemical treatment of plants created due to these studies are used with some positive results in agricultural production. These studies have not sufficiently explored the issues of improving and justifying the parameters of the sprayer in the direction of reducing energy consumption and improving the quality of work
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