As the name suggests, the rotary dehumidifier is mainly used for dehumidification in life and industry. In southern China, humidity is relatively heavy, and heavy humidity will affect human health, such as rheumatoid arthritis. If the humidity in the industry is too large, it is not conducive to the production of many products. Therefore, a comfortable and easy-to-use rotary dehumidifier is needed in the life of the industry. Today, I will talk about the principle of the rotary dehumidifier.

1. Overview of air dehumidification:

If the constant temperature and humidity system is a combined unit, it generally has fresh air cooling and rotor dehumidification sections. When the treated air is cleaned by the fresh air filter, it contacts the surface of the surface cooler in the cold section of the fresh air. Because the surface temperature of the fresh air surface cooler is lower than the temperature of the air, the air is cooled and the temperature drops; at the same time, the water in the air The part becomes condensed water out and is cleaned by the condensate pipe. The temperature and water content of the air are reduced. After that, the runner is used for adsorption and dehumidification to meet the requirements of low humidity. After all, all the air is passed through the rear surface cooler. Or the heater controls the temperature, and the blower sends out the process air whose temperature and humidity meet the requirements.

2. Principle of cooling and dehumidification:

Because the air can contain different moisture at different temperatures and energy, the moisture content in the air decreases with the decrease of air temperature. When the outdoor air passes through the fresh air surface cooler, the air is cooled by the surface cooling coil. As the temperature drops, the water vapor in the air gradually condenses and reaches fullness. When the dew point of the air continues to drop, the The water vapor becomes condensed water and is separated, and then the certain water content in the air is reduced, and the air completes the dehumidification process.

3. The dehumidification principle of the adsorption rotary dehumidifier:

The dehumidification wheel is divided into a treatment area and a regeneration area by a sealing system inside the dehumidification section. The dehumidification wheel rotates slowly at a speed of 8-10 revolutions/hour to ensure that the entire dehumidification is a continuous process. When the treated air passes through the treatment area of the runner, the water vapor in it is absorbed by the hygroscopic medium in the runner, and the water vapor undergoes a phase change and releases latent heat. The runner gradually tends to absorb a certain amount of moisture. Plump; At this time, the processing air becomes dry and hot air due to the reduction of its own water content and the release of latent heat. At the same time, in the regeneration area, the other way of air first passes through the regeneration heater, becomes high temperature air (usually 100-140 degrees) and passes through the plump runner after moisture absorption, so that the adsorbed water in the runner evaporates, and then It is adjusted after the dehumidification of the runner is restored; at the same time, the regenerated air becomes moist air due to the evaporation of water; after that, the moist air is exhausted to the outdoors through the regeneration fan. As a rotary adsorption dehumidifier, its most important core component is the dehumidification runner. The runner is made of glass fiber and heat-resistant ceramic materials as the internal support carrier of the runner, with special effective moisture-absorbing media materials (such as high-efficiency silica gel). ) And composed. In this way, the high-efficiency hygroscopic agent and the special honeycomb structure of the runner itself not only ensure the huge surface area of the runner in contact with the air, but also improve the moisture absorption power of the runner, increasing the moisture absorption capacity; the runner can be cleaned by gas purging, In order to remove some mechanical pollutants on the surface of the runner, such as dust, oil and so on.

4. Benefits of combined dehumidification

In the case of high temperature and high humidity in summer, the wet load is the largest: At this time, the wet load is borne by two treatment sections. The first is to give full play to the high dehumidification power of the fresh air surface cooler under the high temperature and high humidity conditions, and the dehumidification capacity is large. Features, remove most of the moisture in the air, and lower the temperature of the air; and when the freezing dehumidification power drops, dehumidify the air through the runner to make the air humidity reach the low humidity control requirement; in this way, the system makes full use of the two dehumidification methods. interest. In other seasons, such as the spring and autumn seasons, because the wet load drops, at this time, through the energy dispatch of the refrigeration system, the air temperature before and after the cooling is controlled, and the wet load is completely borne by the dehumidification runner section. The purpose of cooling and heating of the system is to accurately control the supply air temperature.

The above is the introduction of some principles of the Nesda rotary dehumidifier products. If you need to order, you can contact Nesda at any time. The product quality is guaranteed and the price is affordable. Welcome to inquire!