On a rainy day, back to the south, the whole spring is wet and wet. The rainy season is always distressing. Cameras, lenses, telescopes, electronic parts, musical instruments, stamps, Chinese herbal medicines, tea and other items will appear to varying degrees of humidity and mildew. Therefore, it is necessary to buy a moisture-proof box with no moisture before the rainy season!
At present, most people understand the principle of moisture-proof box dehumidification: physical adsorption and semiconductor condensation chips. The following is a detailed introduction to their principles.
Physical adsorption technology:
The physical adsorption technology is a high-efficiency desiccant built into the movement. The desiccant adsorbs moisture in the tank. After the moisture absorption is saturated, the ceramic heating plate of the movement is heated, and the heat is transferred to the desiccant. After the desiccant is heated, the moisture is emitted outward, and the shape memory is simultaneously The alloy control valve opens to allow the water to disperse and is normally closed.
Semiconductor condensing chip dehumidification technology:
The semiconductor condensing chip dehumidification core is a semiconductor condensing sheet. The condensing chip has two sides, one side is heated and one side is cooled. When the air with a large moisture content flows through the lower temperature condensing sheet, part of the water vapor will condense on the surface of the condensing sheet. Water drops are precipitated. The condensing sheet is provided with a water collecting tray, and the condensed water is collected and flows into the water storage container and discharged to the outside.
Through the understanding of the technical principle of the drying cabinet and the analysis of the advantages and disadvantages, the recommendations of the scope of application, etc., how to choose the moisture-proof box, you can choose the appropriate worry-free equipment according to the needs of use.