Pneumatic type three-parameter Weibull low-frequency ultrasonic atomizing spray nozzle

Abstract

The invention provides a pneumatic type three-parameter Weibull low-frequency ultrasonic atomizing spray nozzle. The overall vibrating direction of the spray nozzle is the axial direction. A three-parameter Weibull curve type amplitude change rod is adopted as an amplitude change rod of the three-parameter Weibull curve type low-frequency ultrasonic three-time atomizing spray nozzle. The size of metal used in the three-parameter Weibull curve type amplitude change rod is small, less heat is emitted, and the defects that amplitude rods of other shapes are large in metal size and emit much heatare overcome. According to the pneumatic type three-parameter Weibull low-frequency ultrasonic atomizing spray nozzle, by means of the high-pressure airflow effect of an air compressor on a wind inputpipeline, fog drops are subjected to atomizing of the third time on the right end face of a metal sheet. The defect that ultrathin fog drops cannot be generated easily through low-frequency ultrasonic atomizing is overcome, and the spray nozzle can be applied to the fields of atomizing cultivation, ultrasonic spraying and the like.

Description

technical field [0001] The invention relates to the field of atomization cultivation, and in particular to an air-assisted three-parameter Weibull low-frequency ultrasonic atomization nozzle. Background technique [0002] Ultrasonic nebulizer has a wide application prospect in the field of agricultural engineering due to its advantages of fine and uniform droplet size. Ultrasonic atomization refers to the use of high-frequency electronic oscillation, through the high-frequency resonance of the ceramic atomization sheet, to break up the molecular structure of liquid water to produce natural and elegant water mist, without heating or adding any chemical reagents. At present, the main shapes of the horn of the ultrasonic atomizing nozzle are conical, Bezier and stepped. The conical horn has a simple structure and is easy to design and manufacture, but its magnification factor is low; the stepped horn has a high magnification factor, but also has high stress concentration and i...

AI Technical Summary

Problems solved by technology

The ultrasonic transducer converts the high-frequency oscillating electrical signal into ultrasonic mechanical vibration, and the horn amplifies the amplitude of the sound wave generated by the ultrasonic transducer, creating a cavitation effect at the atomizing surface in front of the nozzle, atomizing the liquid, and at the same time A focused sound field is generated to suspend the steel ball, and the generated mist collides with the suspended ball to produce fine mist; this ultrasonic nozzle can only produce secondary atomization

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