Working Principle Of 20KHZ Ultrasound Drinks Degasser

Application of acoustic degassing

Principle of ultrasonic degassing

When ultrasound is introduced into the solution, the alternating pressure will be generated. When the acoustic wave used for the cavitation threshold propagates in the liquid, it can produce cavitation bubbles and significantly improve the mass transfer rate of gas from the solution to the bubbles.

Cavitation bubbles are generated by tiny gas nuclei in the solution. These bubbles are produced in the sparse phase of acoustic wave due to the action of tension stress (negative pressure). If the tension stress continues after the formation of the void, the void will expand to many times the initial size. In this case, the cavitation bubbles maintain a spherical structure, and then continue to grow, vibrate and collapse.

Under the action of ultrasound, the gas components in the solution can enter the cavitation bubble through the directional diffusion at the gas-liquid interface, and the cavitation bubble enters the growth stage. When the cavitation bubble collapses on the surface of the solution, the gas escapes from the bubble, which causes the degassing effect.

Ultrasound degassing can be divided into three stages:

Nucleation stage of cavitation bubble;

The growth stage of gas molecules from solution to bubble diffusion.

The stage in which bubbles accumulate to form bubbles.

The escape stage from bubbles floating to liquid surface collapse

Under the action of ultrasound, the gas components in the solution can enter the cavitation bubble through the directional diffusion at the gas-liquid interface, and the cavitation bubble enters the growth stage. When the cavitation bubble collapses on the surface of the solution, the gas escapes from the bubble, which causes the degassing effect.

Under the action of ultrasound, the gas components in the solution can enter the cavitation bubble through the directional diffusion at the gas-liquid interface, and the cavitation bubble enters the growth stage. When the cavitation bubble collapses on the surface of the solution, the gas escapes from the bubble, which causes the degassing effect.