-
E-mail
3356056332@qq.com
-
Phone
15088734782
-
Address
No.1, Road 10, Dongzhou Industrial Park, Fuyang District, Hangzhou City, Zhejiang Province
Hangzhou Jinghao Machinery Co., Ltd
Sharing the functional characteristics of each component of ultrasonic extraction equipment
Date: 2025-09-15Read: 1
Ultrasonic extraction equipment, as the core tool for acoustic energy extraction, is gradually replacing traditional extraction and reflux processes in traditional Chinese medicine extraction, natural product separation, food functional ingredient development, and environmental sample pretreatment due to its high efficiency, energy saving, and low-temperature characteristics. Its working principle is to use the "cavitation effect" generated by ultrasound in liquid to form tiny bubbles that instantly burst, producing high-temperature and high-pressure shock waves that destroy cell walls and accelerate the dissolution of target components. This efficient process relies on the collaborative operation of multiple precision components of the ultrasonic extraction equipment, each carefully designed.
1. Ultrasonic generator (power supply)
Also known as ultrasound power supply, it is the "brain" and "heart" of the device. It converts power frequency electrical energy into high-frequency (usually 20-40kHz) alternating electrical signals, driving the transducer to vibrate. Modern generators have digital control functions that can adjust output power (30% -100%), working time (pulse/continuous), and automatic frequency tracking to ensure that they remain in resonance under different loads and improve extraction efficiency.
2. Transducers (oscillators)
The core component is a piezoelectric ceramic transducer (PZT), which utilizes the inverse piezoelectric effect to convert electrical energy into mechanical vibration. Titanium alloy is usually used as the radiation head, which has high acoustic conductivity, corrosion resistance, and fatigue resistance characteristics. The transducer is fastened to the bottom or side wall of the extraction tank with bolts, efficiently transferring vibration energy to the liquid medium. Multi oscillator layout can achieve uniform distribution of sound field, avoiding local overheating or cavitation blind spots.
3. Extraction tank (reaction kettle)
Adopting corrosion-resistant and high-strength materials (such as 316L stainless steel or PTFE lining) to withstand local high pressure and impact generated by ultrasonic cavitation. The sealed design of the tank can be operated under normal pressure or pressure to increase the boiling point of the solvent, making it suitable for extracting thermosensitive components. Equipped with feed inlet, discharge valve, temperature sensor and pressure gauge, supporting online monitoring.
4. Mixing system
Built in mechanical stirring blades or magnetic stirring devices promote macroscopic mixing of materials and solvents, prevent precipitation, and improve mass transfer efficiency. The stirring speed can be adjusted, and it works synergistically with ultrasound to achieve dual strengthening of micro (cavitation) and macro (convection).
5. Temperature control system
Ultrasonic cavitation can generate local high temperatures, and an overall increase in temperature may damage the thermosensitive components. The equipment is equipped with a circulating water cooling jacket or a built-in temperature probe, connected to a constant temperature cycler, to stabilize the extraction temperature within the set range (such as 40-60 ℃). Some models have automatic power-off protection against overheating.