Working Principle Of Adsorption Air Dryer

The adsorption dryer achieves the drying effect through "pressure change" (pressure swing adsorption principle). Since the air's ability to hold water vapor is inversely proportional to the pressure, a portion of the air after drying (called regeneration gas) is decompressed and expanded to atmospheric pressure. This pressure change makes the expanded air drier, and then it is allowed to flow through the desiccant layer that needs to be regenerated and is not connected to the air flow (that is, the drying tower that has absorbed enough water vapor). The dry regeneration gas absorbs the moisture in the desiccant and takes it out of the dryer to achieve the purpose of dehumidification. The two towers work in a cycle without the need for a heat source, and continuously provide dry compressed air to the user's gas system.