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Changzhou Ruiting Drying Engineering Co., Ltd
Structural composition and characteristics of pulsating vacuum drying oven
Date: 2025-09-09Read: 9
Pulsating vacuum drying oven is a drying equipment designed specifically for thermosensitive materials. Its structural composition and characteristics can be summarized as follows:
1、 Structural composition
1. Box and sealing system
The box is made of high-quality stainless steel or cold-rolled steel plate, and the surface is treated with electrostatic spraying, which has rust prevention and corrosion resistance.
The box door is made of double-layer tempered glass structure, with built-in heat-resistant rubber sealing ring to ensure high vacuum degree (up to 133Pa or below).
Some models are equipped with a pulsating bubble breaking design, which intermittently extracts air through a vacuum pump to prevent material clumping.
2. Vacuum system
Including vacuum pump, vacuum valve, and vacuum gauge, used for rapid pumping and maintaining negative pressure environment.
Some equipment is equipped with inert gas inlet valves, which can be filled with nitrogen and other protective materials that are prone to oxidation.
3. Heating and temperature control system
The heater (such as electric heating wire or mica heater) is evenly distributed on the inner wall of the box, and is matched with a PID intelligent temperature control system to achieve precise temperature control (usually ranging from RT+10 ℃ to 250 ℃).
The temperature fluctuation can be controlled within ± 1 ℃, suitable for thermosensitive materials.
4. Auxiliary structure
Observation window: convenient for real-time monitoring of the drying process.
Adjustable bracket: Some models are equipped with sliding drying boards or mesh partitions to support layered placement of materials.
Protection mechanism: such as damping shaft and protective soft board, used for dust protection of control panel.
2、 Core Features
1. Low temperature and efficient drying
By reducing the boiling point of water through negative pressure, drying can be completed at a low temperature of 50-80 ℃, avoiding material denaturation.
The drying speed is increased by 30% -50% compared to traditional methods.
2. Anti oxidation and sterile environment
Vacuum environment isolates oxygen and inert gas protection further prevents oxidation, suitable for the pharmaceutical and chemical fields.
The fully enclosed design complies with GMP standards, and the sterilization rate can reach 99.99%.
3. Intelligent control and flexibility
Support programmable temperature control curves (such as segmented heating) and timing functions.
Some models can adjust the height of the box or the spacing between the placement boards to meet different material requirements.
4. Safety and maintenance convenience
Multiple safety protection devices (such as over temperature alarm).
Vacuum pumps require regular maintenance to ensure pumping efficiency.
The pulsating vacuum drying oven achieves efficient and safe processing of heat sensitive and easily oxidizable materials through the above structural combination, and is widely used in the pharmaceutical, chemical, and food industries.
