The difference between a cold dryer and an adsorption dryer？

Cold dryer and adsorption dryer, the difference of one word may be 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 cold dryer can save energy compared to using an adsorption dryer;
2. No valve wear: The adsorption dryer 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, and the general oil-water separator can meet the cold dryer's requirements 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 method:
There are two types of adsorption dryers:
It can be mainly divided into two types: heatless adsorption dryers and heat 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, it 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 dryer also heats the gas, but because the gas it uses comes from dry air with very low water content, it also belongs to the "pressure swing adsorption" dryer.