News Detail

What are Desiccant Dehumidifiers?

Views:168     Author:Site Editor     Publish Time: 2020-06-18      Origin:Site


Dehumidifier can be divided into commercial dehumidifier and industrial dehumidifier and industrial dehumidifier fall into two categories, industrial cool dehumidifier and industrial warm dehumidifier. Besides, you can choose different kind of dehumidifiers according to different occasions. If you want to breathe fresh air at office, there is industrial humidifier for office for you and if you work in the basement, there is industrial humidifier for basement for you. If you are in constant movement, you can choose a portable dehumidifier and better, a mini portable dehumidifier.




Desiccant refers to substances that can remove moisture from moist substances. It is often divided into two categories: chemical desiccant, such as calcium sulfate and calcium chloride, which is dried by combining with water to form hydrates; another is physical desiccant, such as silica gel and active Alumina, which is dried by physically adsorbing water. The control of moisture is closely related to the quantity of the product. For food, under appropriate temperature and humidity, bacteria and mold in the food will multiply at an alarming rate, making the food to spoil, moisture and discoloration. Electronic products can also be metal oxidation due to excessive humidity, resulting in defective products. The use of desiccant is to avoid the occurrence of defective products caused by excess water. There are also two types of drying.




Static Drying

The quantitative adsorbent and quantitative solution reach equilibrium after a long and full contact.  This method usually used in moisture-proof packaging, like cameras and photosensitive materials, precision instruments, electric appliances, food, medicine, shoes, clothes, leather, weapons, telecommunications equipment, etc., and air dehumidification, like household closets, cabinets, floors, musical instruments, etc.



Dynamic Drying

A certain weight of adsorbent is filled in the adsorption column, and a solution with a certain concentration is allowed to flow at a constant speed at a constant temperature, thereby measuring the through adsorption capacity and the equilibrium adsorption capacity.

The applications are: 1. Air drying: warehouse, boat warehouse, pharmaceutical factory, precision machinery, electronic equipment manufacturing plant, compressed air, instrument air drying; 2. Dehydration and purification of industrial gases: hydrogen, oxygen, nitrogen, chlorine, CO2, acetylene, ethylene, methane, ethane, propane, SO3, SO2, natural gas, coal gas.


The desiccant dehumidifier combines traditional materials with emerging technologies, which brings more convenience to people's production and life. The core of the desiccant dehumidifier is a porous structure desiccant rotor formed of special ceramic fiber composite materials and silica gel. The rotor is divided into two areas by the sealing device, one is the treatment area (dehumidification area), and the other is the reactivation area. When the dehumidifier is running, two air streams pass through both areas simultaneously. One is the air dehumidified by the silicone in the rotor, and the other is the hot air used to dry the rotor in operation, so that it will be able to remove moisture again. The hot and humid air vapor takes away the water.


Installation Tips

In order to facilitate maintenance and inspection, sufficient space should be reserved around the machine. Use lifting the equipment to move the machine. Avoid areas containing flammable and explosive chemicals. To prevent moist air from entering the machine, the distance between the moist air tube terminal and the reactivated air tube terminal should be no less than 1 meter. It is important to install the humid air duct downwards so that the humid air condenses into water when the temperature decreases, in order to make the water easily flows outward. The control valve is equipped with a function to adjust the air flow to achieve the desired effect.



Subscribe to our newsletter for more message.
  +86-571-28819085
   2D-2, No. 63, Jiuhuan Road, Tech Park, Jianggan Dist., Hangzhou, Zhejiang, China
© Copyright 2020 by Hangzhou Hongtai Electrical Appliance Co., Ltd..