Heatless Adsorption Dryer

The heatless regeneration adsorption dryer uses the unique capillary action of the desiccant material itself to adsorb moisture in the air. The equipment is generally made into a double tower type. When one tower is adsorbing, the other tower uses low pressure to regenerate (desorb).

Workflow of heatless regeneration adsorption dryer

Adsorption--wet air enters the A drying cylinder from the lower diameter A1 valve and flows through the adsorbent layer from bottom to top. The air is discharged from the upper pipe system after drying.

Regeneration--part of the dry gas (about 10%) enters the B drying cylinder through the upper pipe system regeneration gas regulating valve. The decompressed dry air (regeneration gas) analyzes and regenerates the adsorbent in the B drying cylinder from top to bottom to restore the drying capacity of the adsorbent. The regeneration gas is discharged into the atmosphere through the lower diameter B2 valve and muffler.

Equalized pressure switching--After the adsorbent regeneration is completed, the B2 valve is closed and the B drying cylinder rises to the online working pressure. The lower line pipe B1 valve is opened, the A1 valve is closed, the A2 valve is opened, the A and B drying cylinders are switched, the B cylinder enters the adsorption, and the A cylinder is depressurized and regenerated. The working sequence and working time are automatically completed by the controller.