Thermodynamic mist spray device of plant protection unmanned aerial vehicle

Abstract

The invention discloses a thermodynamic mist spray device of a plant protection unmanned aerial vehicle. The thermodynamic mist spray device comprises a framework, a pesticide liquid supply portion and more than two thermodynamic mist spray units. Pesticide liquid can be delivered to the thermodynamic mist spray units by the pesticide liquid supply portion, the thermodynamic mist spray units are of identical structures, the pesticide liquid supply portion is arranged on the framework, the thermodynamic mist spray units comprise pesticide liquid leading-in pipes, spray nozzles, mist spray leading-out pipes, heat-insulation protection portions, spiral heat conduction pipes, metal pipes and gas tanks, the spiral heat conduction pipes are positioned between the pesticide liquid leading-in pipes and the mist spray leading-out pipes, the pesticide liquid leading-in pipes extend into the pesticide liquid supply portion, the mist spray leading-out pipes extend into the spray nozzles, the gas tanks are positioned beside the pesticide liquid supply portion, the metal pipes are communicated with the gas tanks and extend into cavities formed by the spiral heat conduction pipes, the heat-insulation protection portions are provided with cavities for accommodating the spiral heat conduction pipes, and the spiral heat conduction pipes are arranged in the heat-insulation protection portions. The thermodynamic mist spray device of the plant protection unmanned aerial vehicle has the advantages that the thermodynamic mist spray device is of the structure, accordingly, noise generated when the plant protection unmanned aerial vehicle works can be lowered, and the efficiency of spray operation can be improved.

Description

technical field [0001] The invention relates to the field of aircraft, in particular to a thermal misting device for a plant protection drone. Background technique [0002] As people pay more and more attention to environmental protection, plant protection drones are becoming more and more popular. Installing a mist device on the plant protection drone can remotely control it to spray agricultural chemicals on plants, which is simple and convenient, and the efficiency is greatly improved. , its control height > more than 15 meters, breadth: spraying 20-50 mu / hour, which is impossible to achieve with any equipment. The mist diffuser device of the traditional plant protection drone adopts high-temperature detonation technology. Specifically, under the action of negative pressure at the throat, the oil enters the throat through the nozzle to mix with the air here, and then enters the combustion chamber. in the intake pipe. At the same time, the ignition system switch is tu...

AI Technical Summary

Problems solved by technology

This mist diffuser device is noisy and heavy

When the plant protection drone is used for fruit tree pesticide spraying, the smoke sprayed by the traditional mist device moves downward under the action of the fan blades. When it falls below the leaf surface, the smoke continues to move downward and falls directly to the ground. Backsides of crops and trees do not receive potions, reducing potency

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