What are the common dehumidification principles of rotary dehumidifiers?

Time:2022/1/13 11:00:00

Rotary dehumidifier is a common equipment in the refrigeration industry and a typical representative of temperature control and dehumidification. Based on the different principles of other dehumidification methods and rotary dehumidification methods, other dehumidification methods except rotary dehumidification are limited by their own dew point temperature and cannot reduce the air temperature to the required low dew point state. So what are the common dehumidification principles of rotary dehumidifiers? Next, the editor of rotary dehumidifiers will explain it. I hope it can be helpful to everyone. The details are as follows:

1. Cooling and dehumidification: Cool the air to the dew point, and then remove the condensed moisture. Valid at a dew point of 4°C or higher.

2. Compression and dehumidification: compress and cool moist air to separate it from moisture. It is effective for small air volumes, but not for large air volumes.

3. Solid particle adsorption and dehumidification: the water is adsorbed to the solid adsorbent by capillary action. The dew point can be lowered, but the adsorption area becomes larger and the equipment becomes relatively larger.

4. Liquid absorption and dehumidification: spray moisture with lithium chloride aqueous solution. The dew point drops to about 0°C, but the equipment is large, so the absorbing liquid needs to be replaced.

5. Wheel dehumidification: The sheet impregnated with desiccant is processed into a honeycomb wheel for ventilation. Its dehumidification structure is relatively simple. With special combinations, the dew point can be lowered to below -60°C.

The above five points are all about the five common dehumidification principles of rotary dehumidifiers. Thank you for your understanding and support!