At present, it can be said that the dehumidification dryer has excellent dehumidification function, which makes it widely used in the industrial industry. In the dehumidification dryer, there are many different types, so their dehumidification methods are also different. Today, I will explain the working principle of dehumidification dryer and what the dehumidification mode of dehumidification dryer is!

First, what are the dehumidification methods of dehumidification dryer?

1. Adsorption wheel dehumidification

The thin plate impregnated with hygroscopic agent is processed into a honeycomb runner for ventilation, so as to achieve the dehumidification effect.

2. Liquid absorption dehumidification

There are two kinds of liquid absorption dehumidification. One is the absorption of moisture by the spray of lithium chloride aqueous solution, the dew point can be reduced to about or so, but the equipment is larger and the absorption liquid must be replaced. The other is to use capillary action to adsorb water on the solid hygroscopic agent, which can reduce the dew point, but when the adsorption area is large, the equipment will also become larger.

3. Compression dehumidification

Compress and cool the moist air to separate its moisture and achieve dehumidification effect. It should be noted that this dehumidification method is effective in the case of small air volume, but it is not suitable for large air volume.

4. Cooling dehumidification

Cool the air below the dew point, and then remove the condensed water to achieve the dehumidification effect. This method is effective when the dew point is above.

Second, the working principle of dehumidification dryer.

The hot and humid air from the drying drum is cooled and blown into the honeycomb runner. The water in the air is adsorbed by the runner and then desorbed by the regenerative heating air.

1. Two streams of air act on the runner at the same time, and with the rotation of the runner, the water in the air is continuously adsorbed and desorbed by the regenerated air to form a stable low dew point air, which is heated to the drying temperature of the plastic and blown into the drying barrel to form a closed cycle and dry the raw materials.

2. In the material suction part, the material is sucked into the dry material barrel from the storage barrel or other storage bin containers. When the magnetic spring switch of the vacuum hopper detects that there is no material, the material suction motor operates to generate vacuum in the vacuum hopper.

3. The raw materials in the storage bucket are sucked into the vacuum hopper due to the pressure difference of air. When the suction time is completed, the suction motor stops running, and the raw materials will fall into the dry bucket due to their own weight. The dried raw materials are pumped from the dry bucket to the electric eye hopper installed in the plastic forming machine.

4. Internal circulation of the dehumidifier: through the operation of the compressor → discharge high-temperature and high-pressure gas at the exhaust outlet → enter the condenser for cooling → turn into low-temperature and high-pressure gas → cut off through the capillary → turn into low-temperature and low-pressure liquid → absorb heat through evaporation of the evaporator → return to the compressor and turn into low-temperature and low-pressure gas. This cycle.

5. External circulation of dehumidifier: under normal startup → through the operation of the fan → wet air is sucked from the air inlet → passes through the evaporator → the evaporator adsorbs the water in the air on the aluminum sheet → becomes dry air → dissipates heat through the condenser → blows out from the air outlet.

Working principle of dehumidification dryer

The above working principle of dehumidification dryer and dehumidification mode of dehumidification dryer are summarized here. The industrial dehumidification dryer can also choose the temperature regulating dryer, which can adjust the temperature by itself according to the drying degree of the product. The heavy industrial dehumidification dryer is general, but the general air dehumidification dryer is also selected for drying. There is no good or bad dehumidification method of dehumidification dryer. When selecting, you need to select the appropriate dehumidification dryer according to the use purpose and occasion. I hope the above sharing will be helpful to you.