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Process principle of circular vacuum drying oven
Date: 2025-03-19Read: 24
The basic principle of a circular vacuum drying oven is to use a vacuum environment to lower the boiling point of moisture, thereby accelerating the drying process. When the material is placed in a vacuum drying oven, the pressure inside the oven is reduced, and moisture can evaporate at lower temperatures. This is because the boiling point of a liquid is inversely proportional to external pressure, and the lower the pressure, the lower the boiling point. In a vacuum environment, the moisture in the material can quickly evaporate at lower temperatures to achieve the purpose of drying.
A circular vacuum drying oven typically consists of the following main parts:
1. Box: Made of high-temperature resistant materials, used to hold samples to be dried.
2. Heating device: used to increase the temperature inside the box and enhance the evaporation rate of moisture.
3. Vacuum pump: used to reduce the pressure inside the box and create a vacuum environment.
4. Temperature control system: used for real-time monitoring and adjustment of internal temperature to ensure the stability of the drying process.
Working principle and process flow of circular vacuum drying oven:
1. Vacuum pumping and dehumidification: Vacuum pumping is used to create a vacuum state in the working chamber.
2. Lowering boiling point: In a vacuum environment, the boiling point of water decreases, usually to 40 ℃ or even lower, allowing water to evaporate at lower temperatures.
3. Heating and drying: Using a heating device to increase the temperature inside the box, further accelerating the evaporation of moisture and the drying process of materials.
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