Desktop vacuum drying oven is a commonly used laboratory/industrial equipment that combines vacuum environment and controllable heating. Its core function is to dry samples under low-pressure conditions, and it is widely used in fields such as electronics, materials, biology, pharmaceuticals, and food. Its advantage lies in the fact that a vacuum environment can lower the boiling point of liquids (such as water evaporation at room temperature), avoiding sample denaturation, oxidation, or component loss due to high temperature, especially suitable for samples that are heat sensitive, easily oxidized, and contain volatile components (such as biological agents, polymer materials, traditional Chinese medicine, etc.).
The desktop vacuum drying oven uses a vacuum pump to extract air and moisture inside the oven, creating a negative pressure state and reducing the boiling point of water, thereby achieving low-temperature rapid drying. The core principle is to use a vacuum environment and inert gases (such as nitrogen) to protect materials, avoiding high-temperature oxidation or decomposition. It is suitable for materials that are sensitive to temperature or have complex compositions.
structural composition
Shell: Usually made of steel plate stamping, folding, and welding, the surface is treated with high-strength electrostatic spray coating, and the paint film is smooth and firm.
Studio: Made by folding and welding carbon steel plates or stainless steel plates, with a test sample shelf inside for placing various test items. Fill insulation cotton between the studio and the shell to reduce heat loss.
Heating system: Mica heaters are installed around the outer wall of the studio, and the temperature is adjusted in real time through an intelligent temperature control system.
Vacuum system: composed of vacuum pump, solenoid valve, vacuum pipeline, etc., responsible for extracting air and moisture inside the box, forming a vacuum environment.
Sealing and observation: The box door is sealed with silicone rubber sealing strips and equipped with observation windows, making it convenient for users to observe the situation inside the box.
Control system: adopting P.I.D intelligent temperature control system, supporting accurate temperature setting and constant temperature maintenance. Some models also support computer-aided temperature control, achieving accurate temperature control through a digital regulator.
Regular inspection of seals: Aging, deformation, or attachment of foreign objects to the sealing strip of the box door can cause poor sealing and air leakage. Regularly inspect and replace aged and deformed sealing strips, and clean foreign objects to ensure the sealing surface is clean.