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| Model | SONOL20-1000 | SONOL20-500 | SONOL28-300 | SONOL40-100 |
| Frequency | 20±0.5 KHz | 20±0.5 KHz | 28±0.5 KHz | 40±0.5 KHz |
| Power | 1000 W | 500 W | 300 W | 100 W |
| Voltage | 220/110V | 220/110V | 220/110V | 220/110V |
| Temperature | 300 ºC | 300 ºC | 300 ºC | 300 ºC |
| Pressure | 35 MPa | 35 MPa | 35 MPa | 35 MPa |
| Max Capacity | 8 L/Min | 5 L/Min | 1L/Min | 0.5 L/Min |
| Tip Head Material | Titanium Alloy | Titanium Alloy | Titanium Alloy | Titanium Alloy |
Ultrasound is an elastic mechanical vibration wave, which is essentially different from electromagnetic waves. Because electromagnetic waves propagate in vacuum, and ultrasonic waves must propagate in the medium. When passing through the medium, the whole process of expansion and compression is formed.
In the liquid, the expansion process creates negative pressure. If the ultrasonic energy is strong enough, the expansion process will generate bubbles in the liquid or tear the liquid into small voids. These voids are closed in an instant, and an instantaneous pressure of up to 3000 MPa is generated when they are closed, which is called cavitation. The whole process is 400us.
Cavitation refines substances and makes emulsions, accelerates the entry of target components into the solvent, and improves the extraction rate. In addition to cavitation, many secondary effects of ultrasound are also conducive to the transfer and extraction of target components.
The significance of the six phenomenon lies in the reaction that occurs when the bubble bursts. At some points, the bubbles no longer absorb ultrasonic energy and implosion occurs. The gas and steam in the bubble or air are compressed quickly adiabaticly, resulting in extremely high temperature and pressure.
The volume of the bubble is very small relative to the total volume of the liquid, so the heat generated is lost instantly and will not have a significant impact on the environmental conditions. The cooling rate after the rupture of the empty six bubbles is estimated to be about 10'C/s.
Ultrasonic holes provide energy and unique interactions between substances, and the resulting high temperature and high pressure can lead to the formation of free radicals and other components.
In a pure liquid, when the empty six ruptures, due to the same surrounding conditions, it always remains spherical: but close to the solid boundary, the empty six ruptures non-uniformly, resulting in a high-speed liquid jet, which converts the potential energy of the expanding bubble into a liquid jet The kinetic energy moves in the bubble and penetrates the bubble wall.
The impact force of the jet on the solid surface is very strong, which can cause great damage to the impact area, thereby producing a fresh surface with high activity. The impact force generated by the deformation of the bursting bubble on the surface is several times greater than the impact force generated by the bubble resonance.
The above-mentioned effects of ultrasound are very effective in extracting various target components from different types of samples.
The application of ultrasonic waves, the high temperature and high pressure generated on the contact surface of the organic solvent and the solid substrate, together with the oxidation energy of the high radical generated by the ultrasonic decomposition, provides high extraction energy.
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