Compared with adsorption drying, the freezing dryer has the following characteristics: ① No gas consumption. For most gas source users, the use of freezing dryer than using a adsorption dryer to save energy; ② no valve parts wear; ③ There is no need to add or replace the attachment; ④ low noise; ⑤ daily maintenance is simpler, as long as the automatic drainter filter is cleaned on time; ⑥ no special requirements for front processing and supporting air compressor of the gas source, generally The oil and water separator can meet the requirements of the intake quality of the frozen dryer; ⑦ Frozen dryer has a "self -cleaning" effect on the exhaust, that is, the solid impurities in the excreted gas are less. Oil steam can also be condensed into liquid oil mist discharged with coagulation. Compared with the adsorption dryer, the "pressure dew point" of the frozen dryer can only reach about 10 ° C for the "pressure dew point" of compressed air treatment. Therefore, the dry depth of the gas is far less than the adsorption dryer. The machine does not meet the requirements of the technology to dry the dryness. A selection practice has been formed in the technology community: when the "pressure dew point" requires to be above zero, first freeze the dryer. When the "pressure dew point" requires below zero, the adsorption dryer is the first choice.

ARTICLE SOURCE: NINGBOXINZHI