Refrigeration dryers are based on the principle of freezing and dehumidification. The saturated compressed air from the upstream is cooled to a certain dew point temperature through the heat exchange of the refrigerant, and a large amount of liquid water is separated by the gas-liquid separator and then condensed and discharged out of the machine. The purpose of drying and removing water.

The adsorption dryer is based on the principle of pressure swing adsorption. The saturated compressed air from the upstream contacts with the desiccant under a certain pressure, most of the moisture is absorbed by the desiccant, and the drying air enters the downstream to work, so as to achieve the purpose of deep drying.

At present, the refrigeration dryer still has problems such as low heat exchange efficiency and many dead zones in the process of compressed air flow. In order to give full play to its functional advantages, its key technologies are analyzed, and its heat transfer effect is continuously strengthened through multi-faceted joint optimization to achieve the best application effect.

Vacuum freeze drying is widely used in benthic, pharmaceutical, food and other industries because of its complete dehydration, excellent rehydration and anti-oxidation. The main text introduces the principle and structure of the vacuum freeze-drying machine, and the center introduces how to verify the performance of the vacuum freeze-drying machine, so as to ensure the normal performance of the instrument and protect the efficiency of the freeze-drying service.

FROM:debangjieneng