Compressed air purification equipment is also called the post-processing equipment of the air compressor, which generally includes an after-cooler, an oil-water separator, an air storage tank, a dryer and a filter; its main function is to remove water, oil, and Solid impurities such as dust.
After cooler: used to cool down the compressed air and condense the purified water. This effect can be achieved by using a cold-drying machine or an all-in-one cold-drying filter.
The oil-water separator is used to separate and discharge the cooling and cooling water droplets, oil droplets, impurities, etc.; the coalescence principle separates oil and water, and the oil floats to the upper layer to be collected by the oil collector, and the water is discharged.
Air storage tank: The function is to store the air buffer, stabilize the pressure and remove most of the liquid water.
Dryer: The main function is to dry the moisture of the compressed air. Its dryness is expressed by dew point, the lower the dew point, the better the drying effect. Generally, dryer types can be divided into refrigerated dryers and adsorption dryers. The pressure dew point of the refrigerated dryer is above 2 °C, and the pressure dew point of the adsorption dryer is -20 °C to -70 °C. Customers can choose different types of dryers according to their own needs for compressed air quality. It is the most important equipment in the whole compressed air purification equipment.
Filter: The main function is to remove water, dust, oil and impurities. The water mentioned here refers to liquid water, and the filter only removes liquid water, not vapor water. The filtration efficiency of the filter is determined with precision. The general accuracy is 3u, 1u, 0.1u, 0.01u. When installing, it is recommended to arrange them in descending order of filtering precision.
Compressed air purification equipment needs to be selected according to the working conditions, and some equipment may not even be installed. In these aspects, the opinions of the manufacturers should be actively consulted, and blind choices should not be made.
Post time: Jul-14-2022
