Ultrasonic-pneumatic electrostatic nozzle

Abstract

An ultrasonic-pneumatic electrostatic nozzle comprises a spray rod with a tiny liquid flow channel processed in the axis, an ultrasonic generator, a nozzle air tap, a high-voltage electrostatic generator. The nozzle air tap surrounds the end of the spray rod to form the nozzle, a support device is arranged in the middle of the spray rod, the ultrasonic generator and the high-voltage electrostatic generator are pressed and fixed on one side face, away from the nozzle, of the support device through a fastening device, the ultrasonic generator is provided with a piezoelectric wafer, a backseat and a lead, the lead is connected to the piezoelectric wafer, short pulse of voltage acts on two poles of the piezoelectric wafer through the lead, the piezoelectric wafer elastically deforms so as to generate elastic oscillation, the high-voltage electrostatic generator is provided with an electrode to be connected with the liquid flow channel in the axis of the spray rod, and the high-voltage electrostatic generator applies high voltage static on liquid passing through the liquid flow channel of the spray rod. The nozzle is simple in structure, convenient to operate, safe and reliable, adjustable in spray flux and distance and the like, and is of great significance to spray effect improvement and reduction of chemical waste.

Description

technical field [0001] The invention relates to an ultrasonic-pneumatic electrostatic spray head, in particular to a device for increasing the degree of droplet atomization, improving crop drug and nutrient absorption, reducing drug waste, and improving spraying effect, belonging to plant protection equipment for agriculture and forestry Ancillary devices. Background technique [0002] The essence of mechanical spraying technology is to increase the rate of pesticide deposition on the target (i.e. target), reduce or eliminate its deposition in non-target objects or areas, and adopt reasonable technical methods to reduce the amount of pesticide application. To the minimum value, so as to maximize the effective utilization of pesticides, while eliminating the hazards of pesticides to operators and the risk of pollution to the environment. Low-volume, low-pollution spray technology is an urgent problem to be solved in the field of pesticide application technology. Practice ha...

AI Technical Summary

Problems solved by technology

At present, the domestic mechanical pesticide application technology has been hovering at a low level, which is difficult to meet the needs of the market. The effective utilization rate of drugs is low, a large number of drugs drift and lose, and the environmental pollution is serious, causing drug residues in agricultural and forestry products to exceed the standard, which seriously threatens people's health.

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