Adsorption type compressed air dryer using pressure swing adsorption principle, wet air through the adsorbent, the water is absorbed by the adsorbent, get dry air.

A large amount of air discharged from the air compressor flows through the compressed air inlet pipe and enters the operation tower in the two tower through the air valve. When the air is circulated to the top of the tower, the water in the air is absorbed completely, so as to achieve the purpose of drying. The whole circulation standard 10 minutes, each tower each run 5 minutes, a tower in the process of work (running tower), the other tower in the regenerative state (non operating tower) regeneration time is 4.5 minutes, continued pressure time 0.5 minutes. In the process of regeneration operation tower in a partial drying air by the regeneration air volume regulating valve into the non operation of the tower column of the moisture of the silencer band into the atmosphere to. When the gas consumption is 12% of the amount of equipment in operation.