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Dehumidifier circuit board

By:PCBBUY 04/27/2021 09:42

Dehumidifier is also known as dehumidifier, dehumidifier, dehumidifier. The dehumidifier belongs to a small member of the refrigeration and air conditioning family. At present, the main production areas of global dehumidifiers are concentrated in Italy, Japan and Taiwan, China. China's position in the global dehumidifier market is not significant. In particular, household dehumidifiers have always been export-oriented, but have just been recognized by Chinese consumers.

After the treated air is sucked in by the fan, it is filtered by an air filter, and then cooled and dehumidified on the cooled evaporator, condensing excess water vapor in the air into water, so that the air moisture content is reduced, because the dehumidified condensate is taken away Part of the heat and humidity will reduce the temperature of the air. In order to make the temperature and humidity of the air suitable, the unique structure of the dehumidifier causes the dehumidified air to be heated and heated by the condenser, thereby increasing the ambient temperature and greatly improving the dehumidification effect of the dehumidifier.

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Working principle of dehumidifier


1. The manufacturing of the dehumidifying wheel is made of ceramic fiber paper with a temperature resistance of 500°C or more. After the honeycomb wheel is made by a molding machine, it is coated with silica gel between the ceramic fibers, so the dehumidifying wheel will not burn and Deliquescent and other issues. Since its dehumidification function uses physical rather than chemical action, it will not produce any harmful chemical substances.

2. The dehumidification principle of the rotary wheel dehumidifier is to use the silica gel coated on the rotary wheel to physically adsorb the water in the air on the porous synthetic silica gel, and then in the regeneration zone of the rotary wheel, it will be adsorbed on the silica gel. The water vapor in the hole is heated and vaporized to the inlet of the AC heat exchanger to form high-temperature and high-humidity air. When it then passes through the heat exchanger that has been cooled by the indoor cold and humid air, the condensed water is discharged due to the difference in dew point.

Industry use


The dehumidifier is developed for the damp and harsh ring mirror, which can not only effectively improve the humid life and production environment to achieve an ideal state, but also remove mold caused by the humid environment. By operating the dehumidifier, the moist moisture and The removal of suspended particles makes the air dry. It is also an air cleaner. Household dehumidifiers and industrial dehumidifiers are widely used in all aspects of production and life. Create a comfortable, dry and quiet modern living space for users.

Principle of defrosting dehumidifier

When the compressor dehumidifier is used in a relatively low temperature environment (generally below 10 degrees Celsius), it will cause frost in the dehumidifier heat exchange system, and this process is inevitable, so the compressor dehumidifier is at ambient temperature Under low conditions, it will enter the defrost state regularly.

At this time, the dehumidifier will first stop the compressor, and use the evaporator heating wire (part of the heat exchange system) to heat the heat exchange plate temperature, and then output through the fan to produce a defrosting effect.

This time-consuming needs to be determined by the ambient temperature. The lower the ambient temperature, the longer it takes. During the defrosting process, the compressor-type dehumidifier cannot perform dehumidification work, so for low-temperature environments, the compressor-type dehumidifier dehumidifies The effect is not ideal.

If it is a dehumidification environment with a low ambient temperature, you can choose a new type of wheel dehumidifier.

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