The use of refrigerated dryers with compressed air filters

A few days ago we explained the relationship between cold dryers and condensers, today we will talk about the matching use of cold dryers and precision filters. An important prerequisite for obtaining the required dew point compressed air, saving energy for regeneration and extending the service life of the equipment is the correct use of the chiller. Cold dryers are rarely used alone. In almost all pneumatic networks, chillers are used in conjunction with filters. This is not only to meet the need of gas quality, but also the need of the normal work of the chiller itself. A typical system of cold dryer: two filters are set in front of the air inlet of the cold dryer, and one filter is set after the exhaust port. Their roles are.

(1) the main line filter. Its role is to remove the compressed air inlet particle size of liquid water droplets and particles due to the body. If the cold dryer is in a large amount of liquid water and solid impurities for a long time, will gradually reduce the dehumidification capacity. So the setting of water filter is very necessary, filtration precision: 1um, water removal rate: 100%, in addition to the oil mist rate: 70%; applied in the pneumatic tools pre-filter, precision filter pre-filter, adsorption dryer before, after the filter, air system main line filter.

(2) Oil mist filter. Filtration precision: 0.01um, water removal rate 100%, oil mist removal rate 99.999%. Because if the air entering the cold dryer contains a large amount of oil film, it will reduce the heat exchange effect of the heat exchanger in the cold dryer, and in the long run, the water removal effect of the cold dryer will be greatly reduced, and the export dew point will rise at the same time. Therefore, the use of oil compressors to provide oil-free air to meet the needs of precision instruments, paint spraying, drug packaging and electronics industry.

(3) Micro oil mist filter. After treatment by the cold dryer to remove most of the water, but for various reasons there may still be certain impurities in the air, or not up to the air quality required by the process, it is necessary to install a filter at the outlet of the cold dryer: activated carbon adsorption filter: filtration accuracy: 0.01um, residual oil rate of only: 0.003PPm. used in food, hospitals, pharmaceutical plants, diving protection air. High efficiency oil separator after the filter, adsorption pieces of oil vapor can not be removed from the oil filter.

Lingyu ~ 1.0 0.01 micron precision moisture removal compressed air filter