Necessity of adsorption air dryer

Frozen air dryers operate on the principle of dehumidifying compressed air by cooling it with refrigerants. In order to prevent freezing of condensed water or freezing of heat exchanger generated during cooling of compressed air, an adsorption air dryer must be used in processes sensitive to moisture.

Adsorption air dryers usually offer stalls below -40°C and are used in various places, including the food and beverage industry, pharmaceutical industry, petrochemical industry, electronics and semiconductor industry, and medical industry. In these industries, the use of reliable adsorption air dryers is essential because even trace amounts of moisture can lead to process interruption and product defects.

GSA's adsorption air dryer can also be supplied with ultra-dried compressed air below -100°C according to user's request, and various adsorption air dryer systems are designed to increase user satisfaction.

Operation of non-heated regenerative adsorption air dryer

Compressed air containing a large amount of moisture flows into a drying tower, and moisture is adsorbed by a charged adsorbent and dry compressed air is produced in the process of moving from the bottom to the top of the tower. While the drying tower performs the drying process, the other tower performs a regeneration process to remove and remove the adsorbed moisture. The regeneration process uses a part of the dry compressed air produced by the drying tower, and the dry compressed air desorbs moisture adsorbed to the adsorbent of the regeneration tower and discharges it to the outside through a silencer under the regeneration tower. When the regeneration tower process ends at a fixed time, the purge valve of the regeneration tower closes and the dynamic pressure process of pressurizing the regeneration tower proceeds. When the dynamic pressure process is completed, the two towers are switched, the tower that performed the drying process is regenerated, and the tower that has completed the regeneration process is subjected to the drying process.

This series of processes is automatically repeated according to the specified time and sequence and produces dry air continuously. The basic operating cycle is a 10-minute process, and the two towers each carry out a drying process for 5 minutes, a 4-minute regeneration process and a 1-minute dynamic pressure process.