Pressure control device and method for spraying liquid medicine in pipeline of orchard

Abstract

The invention discloses a pressure control device and method for a spraying liquid medicine in a pipeline of an orchard. The device comprises a control system, an input panel, an output panel, a frequency converter, a frequency-conversion motor, a medicine pump, a wireless pressure receiving module and wireless pressure sending nodes; the control system is connected with the input panel, the output panel, the frequency converter and the wireless pressure receiving module, the frequency converter, the frequency-conversion motor and the medicine pump are connected successively, a medicine inputend of the medicine pump is connected with a medicine pool, and a medicine output end of the medicine pump is connected with the spraying pipeline; and the wireless pressure sending nodes are arrangedin the spraying pipeline, and connected with the wireless pressure receiving module. According to the invention, a control system can adjust the frequency of the frequency converter to control the rotating speed of the frequency-conversion motor and further control the medicine output amount of the medicine pump so as to control the liquid medicine pressure in the spraying pipeline, solve the problem that traditional pipeline spraying cannot control the liquid medicine pressure effectively, and improve the spraying effect.

Description

technical field [0001] The invention relates to a liquid medicine pressure control device and a control method, in particular to an orchard pipeline spray liquid medicine pressure control device and a control method, belonging to the field of orchard pesticide spraying. Background technique [0002] There are many mountainous orchards in southern my country, and fruits are the "pocket" of mountain fruit farmers. The orchard needs to be sprayed 8-12 times a year, and the operation intensity is relatively high. At present, most foreign countries are standardized orchards, and various new technologies can be used for spraying. In the south of my country, there are mostly mountain orchards, and it is difficult for mobile spraying machines to enter. The spraying is mainly carried out by backpack sprayers or motorized stretcher sprayers with long rubber hoses, which is labor-intensive and low in efficiency. Currently engaged in the work as the elderly and women, who will adminis...

AI Technical Summary

Problems solved by technology

Because the traditional pipeline spray uses a constant frequency and constant pressure motor to drive the drug pump to run at a constant speed to output a constant flow, it lacks effective control over the pressure and drug output, and the pressure of the pipeline drug solution varies with the terrain, pipe network layout, spray position, and drug outlet. The number and operation method will fluctuate. At the same time, when the liquid medicine flows in the pipeline, there will be pressure loss, which will lead to unstable pressure of the liquid medicine and different pressures at each point, which will affect the spraying effect and prone to pipe burst.

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