Ultrasonic efficient atomization device of water currents under narrow-slit airflow oscillation stirring

Abstract

The invention discloses an ultrasonic efficient atomization device of water currents under narrow-slit airflow oscillation stirring. The device comprises a liquid-air leading shell and an atomization device generation shell; a liquid-air leading valve element is arranged in the liquid-air leading shell; an airflow gradual shrinking narrow-slit channel is formed in the outer side of the valve element; a center through hole of the liquid-air leading valve element is a jet water gradual shrinking channel, and a jet water outlet at the tail part is aligned with a water current ultrasonic oscillation cavity; an airflow self-exciting oscillation cavity is formed in the tail end of the atomization device generation shell; a horn-shaped airflow baffle plate is arranged in the center of the airflow self-exciting oscillation cavity; a water mist gradual shrinking channel is formed in the airflow baffle plate; and the water mist gradual shrinking channel, a water mist guide channel and a water mist jet outlet are smoothly transited and connected. An air flow enters the airflow self-exciting oscillation cavity after being accelerated by the airflow gradual shrinking narrow-slit channel; and the airflow baffle plate and the airflow self-exciting oscillation cavity are matched to form an airflow self-exciting oscillation field so as to successfully realize efficient liquid atomization. The device has the advantages of high atomization efficiency and simple structure, and is also suitable for efficient atomization of other liquid.

Description

technical field [0001] The invention relates to a water flow ultrasonic high-efficiency atomization device under the vibration and stirring of a narrow slit airflow, in particular to a water flow high-efficiency atomization device applying the ultrasonic principle under the action of air flow. Background technique [0002] With the rapid upgrading of high-tech products, the processing requirements for related parts are getting higher and higher, the harmful dust generated in the processing process is getting finer and finer, and the proportion of respirable dust is increasing. According to relevant literature research, the water mist formed by ordinary nozzles has a large particle size, and has the disadvantages of low collision probability and unsatisfactory dust reduction efficiency when it interacts with fine dust. At present, the most commonly used method is to reduce dust through a fine atomization field. The common way to form the atomization field is by increasing the...

AI Technical Summary

Problems solved by technology

According to relevant literature research, the particle size of water mist formed by ordinary nozzles is relatively large, and there is a disadvantage that the collision probability is not high when it interacts with fine dust, and the dust reduction efficiency is difficult to meet. At present, the most commonly used method is to reduce dust through a fine atomization field.

The common way to form the atomization field is to increase the pressure and reduce the diameter of the nozzle opening, but these two methods are not advisable

Increasing the pressure will bring a burden on the pressure supply equipment; reducing the nozzle diameter increases the probability of clogging, so frequency excitation is mostly used to improve the turbulent flow capacity of the water jet to enhance the atomization effect, and most of them are currently popular atomization technologies It is ultrasonic atomization technology

[0003] Chinese patent CN102527567A "An Ultrasonic Atomization Dust Reduction Nozzle for Underground Coal Mine" designs an atomization device that uses ultrasonic waves formed by airflow to act on liquids, which improves the atomization effect, but the water flow in the atomization chamber runs wet and straight , the turbulence effect formed is not strong, resulting in low atomization uniformity

Chinese patent CN103362533B "A Conical Airflow Field Atomization Injection Device" utilizes a cone-shaped annular seam to form an airflow velocity field, attracts water flow into the airflow field, stirs and breaks it, and makes full use of the auxiliary crushing effect of the airflow, but the water flow enters the airflow field not getting atomized before, which makes the atomization not efficient

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