Ultrasonic-pneumatic nozzle
A spray head and ultrasonic technology, applied in spray devices, liquid spray devices, and devices for capturing or killing insects, etc., can solve the problems of low effective utilization of drugs, threats to people's health, and excessive drug residues, and achieve the benefits of drugs and Nutrient absorption, improving droplet atomization, reducing drug waste
Inactive Publication Date: 2015-04-29
YANGZHOU UNIV
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Abstract
The invention discloses an ultrasonic-pneumatic nozzle which comprises a spray rod with a tiny liquid flow channel processed in the axis, an ultrasonic generator and a nozzle air tap. A support device is arranged in the middle of the spray rod, the ultrasonic generator is mounted on the support device, the nozzle air tap surrounds the end of the spray rod to form the nozzle, the ultrasonic generator is provided with a piezoelectric wafer, a backseat and a lead, the lead is connected to the piezoelectric wafer, the backseat is located at one end of the piezoelectric wafer and is in contact with the fastening device, the piezoelectric wafer is provided with a piezoelectric ceramic plate and electrode plates, the electrode plates are respectively plated on the front and back sides of the piezoelectric ceramic plate by adopting metallic silver as a conducting material, short pulse of voltage acts on two poles of the piezoelectric wafer through the lead after energization, and due to back voltage effect, the piezoelectric wafer elastically deforms so as to generate elastic oscillation. 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.
Application Domain
Liquid spraying apparatusInsect catchers and killers
Technology Topic
Elastic oscillationUltrasonic generator +4
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