The difference between the concept of air compressor cold dryer and suction dryer

The main difference between air compressor cold dryer and suction dryer is reflected in their use and working principle.

First of all, the air compressor cold dryer, the full name of the freeze dryer, the main purpose is to reduce the temperature of the compressed air. Its working principle is to use the principle of refrigeration to supersaturate the water vapor in the compressed air at low temperature and condense it into liquid water droplets, and then separate the condensed water (including part of the oil and dust) from the compressed air by means of air-water separation. And it is discharged out of the machine through the drain to get dry compressed air. The cold dryer is usually equipped at the back end of the air compressor and is mainly used to remove water from the compressed air. The characteristics of the cold dryer are that it has no compressed air consumption, small valve wear, no need to regularly add or replace the adsorbent, low operating noise, and low pre-treatment requirements for the air source. However, in order to maintain the best performance of the equipment, the air compressor cold dryer needs regular and relatively frequent cleaning and maintenance work, including cleaning the air condenser, automatic drainer and Y-type filter and other components, and checking the equipment Running status, so its daily maintenance is not simple.

On the other hand, the suction dryer is a professional compressed air water removal equipment, which is mainly used for adsorption and drying of compressed air. Its working principle is to adsorb and discharge the moisture and impurities in the compressed air through the opening of the intake valve of the adsorption tower, the opening of the exhaust valve of the regeneration tower, and the discharge of compressed air, so as to achieve the drying effect. In addition, the suction dryer needs to master the correct operation method when it is used for the first time to ensure the normal operation of the equipment. Although the main goal of the suction dryer is to dry the compressed air, the cleaning of the surface may also be involved in the work process.

In summary, the air compressor cold dryer mainly through the principle of refrigeration drying compressed air, and suction dryer through the principle of adsorption of compressed air drying. The working principles and objectives of the two are different, so it is necessary to select the appropriate equipment according to the specific needs.