Titanium Horn 20Khz 1500w Ultrasonic Homogenizer For Liquid Defoaming

20Khz 1500w Ultrasonic homogenizer with titanium horn for Degassing and liquid defoaming

Parameter

Description

Ultrasonic equipment can effectively degas and defoam liquids. In this case, ultrasound removes small suspended bubbles from the liquid and reduces the level of dissolved gas below the natural equilibrium level.

There are many uses for degassing and defoaming liquids, such as:

Particle size measurement before sample preparation to avoid measurement errors.
The oil and lubricating oil are degassed before pumping to reduce pump wear caused by cavitation.
Degas liquid foods (such as juice, soy sauce or wine) to reduce microbial growth and extend shelf life.
When ultrasonic treatment of liquids, the sound waves propagating from the radiating surface to the liquid medium will generate alternating cycles of high pressure (compression) and low pressure (rare), the rate of which depends on the frequency. During the low-pressure cycle, high-intensity ultrasound will create small vacuum bubbles or voids in the liquid. A large number of small bubbles are evenly distributed in the liquid, resulting in more bubble surface area. The dissolved gas migrates into these vacuum (low pressure) bubbles through a larger surface area and increases the size of the bubbles.

The sound waves support the contact and merging of adjacent bubbles, thereby accelerating the growth of the bubbles. The sound waves will also help to detach the bubbles from the surface of the container and force smaller bubbles located below the surface of the liquid to rise and release the entrained gas into the environment.

Degas before emulsification and dispersion

Ultrasonic degassing can significantly improve the quality of dispersions and emulsions.

The problem
Emulsions and dispersions usually contain surfactants to increase stability. The surfactant will inhibit the contact and coalescence or aggregation of the dispersed material in the liquid phase. For this reason, the surfactant will form a layer around each particle. Similarly, surfactants can also encapsulate bubbles suspended in the liquid phase. This stable bubble can prove to be very robust. It consumes surfactants, reduces the quality of emulsions or dispersions, and produces unstable readings when measuring particle size.

solution
In order to reduce the problem of bubble stability, the liquid can be simply degassed by ultrasonic treatment. Before adding the dispersed phase (such as oil or powder), ultrasonically treat the liquid until the number of bubbles generated is reduced. When mixing other materials, avoid creating new bubbles or vortexes during mixing, which will quickly increase the gas content.