How a transport filter drier from China manufacturer works

Time of issue:

2022-11-24 15:32

Origin:

The transport filter drier from China manufacturer is one of the most commonly used accessories in the refrigerant pipeline. It is mainly used to clean the system of harmful substances, thereby protecting important components such as expansion valves and compressors.
How a transport filter drier from China manufacturer works:
The molecular sieve used in the desiccant in the transport filter drier from China manufacturer is a kind of artificial zeolite, which is a granular white solid with uniform crystal pores. Molecular sieves are insoluble in water and organic solvents, generally soluble in strong acids, and are a selective adsorbent with excellent performance. When the molecular diameter of other substances mixed into the molecular sieve is smaller than the molecular diameter of the molecular sieve, it will be adsorbed by the molecular sieve. When the refrigerant liquid flows through the dry filter, since the diameter of the refrigerant molecule is larger than that of the water molecule, water molecules can be screened out.

Common failures of transport filter drier from China manufacturer:
Dirty blockage, due to moisture in the refrigeration system, carbon deposits caused by excessively dirty refrigeration oil, poor welding, oxide skin peeling off the inner wall of the tube, year-round operation of the compressor, mechanical wear and impurities, and the refrigeration system was not cleaned before assembly and welding and other reasons.
Judgment method: After the compressor starts running, the condenser starts to heat up and gradually cools down, and the hissing sound of the normal refrigerant cycle cannot be heard in the evaporator, and the dry filter is touched by hand, and the temperature is lower than the normal value, and the surface There will be frost or condensation, and the compressor will make a dull overload sound. In order to further confirm the "dirty blockage" of the dry filter, the capillary can be cut off near the dry filter. If there is no refrigerant spray or the spray pressure is not high, it means dirty blockage.