Why are dehumidifying dryers widely used?
With the improvement of living environment requirements and technological progress, dehumidification dryers came into being to solve the problem of heavy humidity in the environment.
The desiccant dryer is composed of a compressor, a heat exchanger, a fan, a water container, a cabinet and a controller. Its working principle is that the fan draws moist air into the machine and passes through the heat exchanger. At this time, the moisture in the air Condensed into water droplets, becomes dry air and is discharged out of the machine. This circulation reduces indoor humidity.
Since most engineering plastics are hygroscopic, coupled with the influence of weather and regional climate, it is easy to cause the plastic pellets to be excessively wet and fail to achieve the molding effect. In addition, the plastic raw materials are different in the previous granulation process, so the air moisture content and hygroscopicity are also different. Therefore, when molding, it is easy to produce bubbles, silver bars, poor transparency, cracks, and poor stability, which seriously affect product quality. The air pipeline of the desiccant dryer adopts a closed circulation system, which can not be affected by the external weather. The material can be dried well in dry weather or wet weather, without reversing moisture, and the product quality is high.
The desiccant dryer first draws the air in the environment to remove the moisture in the air under low dew point, and then heats the dried air into one or more standard drying hoppers, which can improve the drying efficiency and shorten the drying time. If a traditional hot air blower uses moisture with external air to dry the material, it is difficult to achieve the drying effect. In addition, when the plastic is taken out of the moisture-proof sealed packaging bag and exposed to the atmosphere, it will begin to absorb moisture from the atmosphere. Traditional hot air blowers cannot prevent the plastic from continuing to absorb moisture, and the drying effect is poor.
Therefore, dehumidification dryers are widely used in laboratories, computer rooms, measurement rooms, libraries, archives, offices, instrument rooms, hospitals, power distribution rooms, banks, material reserves, food and crop warehouses, etc., so that electronic products, Optical instruments, precision equipment and valuables avoid the bad luck of humidity and mildew.
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