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How Do Desiccant Dehumidifiers Work?

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

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In the rainy season like spring and summer, people living in the south region often feel that the air is wet, the walls and the ground drop in some water. Soaked in humid air, some items or foods are easily affected with damp, then get moldy and rot. More than that, there is often a faint musty smell in the air, which makes people mentally exhausted, which is so annoying, and even more serious, it can cause discomfort and disease. Therefore, it is still necessary to take appropriate measures to prevent moisture.


Dehumidifier can be divided into commercial dehumidifier and industrial dehumidifier. 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.


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In order to reduce the humidity of the air, people have thought of many ways, such as putting a dehumidification box and a dehumidification bag in the room, turning on the dehumidification function of the air conditioner, or even purchasing a dehumidifier. Desiccant dehumidifier is a good choice, what is its working principle?


The desiccant dehumidification system removes water from the air by using a desiccant which is a material that easily attracts and retains water vapor. Desiccant dehumidifiers are particularly suitable for removing moisture from the air at low temperatures and low humidity levels.


The core of these dehumidifiers is a patented desiccant wheel made of corrugated material. Air passes through the flutes of the material and comes into contact with the desiccant. The incoming air stream releases its moisture into the desiccant. The air dries as it leaves the wheel. The loaded wet wheel slowly rotates into a second, smaller air stream that has been heated.


This smaller exhaust air flow, called reactivation air, heats the desiccant. The warm desiccant releases water, which is then taken away by reactivated air. The freshly dried desiccant material is rotated back into the process air to absorb moisture again. Desiccant dehumidification systems have become increasingly popular in recent years because of the reduction in equipment costs through modular design and the use of desiccant silicone wheels. It should be noted that the reactivation heat in the original desiccant system was produced by burning natural gas, but now all electric desiccant systems are available. These desiccant systems are very efficient and simple because they use the heat from the condenser to regenerate the desiccant wheel.


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In order to better explain the working principle of desiccant dehumidification, we divide the process into the following steps: The dehumidifier absorbs the moisture from the air into the desiccant. The air to be dried or processed is conveyed through the rotor in the form of one air stream. The rotor brings the moist desiccant into the reactivation air stream to heat it. Moisture is discharged from the desiccant as water vapor. Humid, warm air is sent outdoors. The separate flows move in different directions, blowing all debris away from the processed air. Last, the dried air circulates back into this area. 


When quick and complete drying is the desired result, the desiccant dehumidifier can perform all its functions. In construction or paint engineering, the desiccant dehumidifier is a difficult task to complete the work on time. Otherwise, the wrong weather may significantly delay your project or seriously affect the quality of work.


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