Refrigerated Air Dryers and desiccant for air dryer, the difference of one word may make a world of difference. As the saying goes, "a slight difference can lead to a great mistake". Please pay attention to the difference between the two (cold dryer and adsorption dryer) when purchasing.
1. No compressed air consumption: Most users do not have very high requirements for the dew point of compressed air. For example, using a Air Dryer Desiccant can save energy compared to using an adsorption dryer;
2. No valve wear: The desiccant air dryer for compressor has the problem of switching valves. Although there are valves in the cold dryer, there is basically no wear problem;
3. No need to add or replace adsorbent regularly;
4. Low operating noise: The adsorption dryer has the noise of decompression of the adsorption tower. In the air compression room, the operating noise of the cold dryer is generally not heard;
5. Daily maintenance is relatively simple, as long as the automatic drain filter is cleaned on time;
6. The pre-treatment requirements for the air source are not high. The general oil-water separator can meet the requirements of the cold dryer for the intake air quality; Compared with the adsorption dryer, the "pressure dew point" of the compressed air treated by the cold dryer can only reach above 0℃, so the drying depth of the gas is far less than that of the adsorption dryer.
Classification by adsorbent regeneration method: There are two types of adsorption dryers. They can be mainly divided into non-heat regeneration adsorption dryers and heat regeneration adsorption dryers. Since the heatless adsorption dryer works by isothermal adsorption, it is also called "pressure swing adsorption".
The heat adsorption dryer works by isobaric adsorption, which is also called "temperature swing adsorption". In actual use, there is also a kind of dryer called micro-heat dryer. From the form, the micro-heat regeneration dryer also heats the regeneration gas, but since the regeneration gas it uses comes from dry air with very low water content, it also belongs to "pressure swing adsorption" dryer.
