The second reason of compressor oil shortage in constant temperature and humidity test chamber

constant temperature and humidity test chamber Foaming phenomenon during compressor shutdown:

There is mutual solubility between refrigerant gas and refrigerant oil in compressor of constant temperature and humidity test chamber, which is related to pressure and temperature. According to the principle of thermodynamics, it is well known that a gas can be transferred from the hot place to the cold place in the system. The situation is that during shutdown, the compressor is a * cold part in the system. Therefore, constant temperature and humidity test chamber after the oil is fully saturated, the refrigerant will sink at the bottom of the compressor housing. As a result, the compressor parts will be worn or stuck.

When constant temperature and humidity test chamber the compressor starts, the suction pressure drops, so that the refrigerant in the oil can be decomposed, or the refrigerant at the bottom of the compressor housing evaporates from the oil, bringing out a lot of oil. At this point, the compressor housing is quickly filled with foam (oil and refrigerant mixture) and inhaled through the cylinder to flow out of the compressor. All the oil can flow out of the compressor in a few seconds. So even if the system design is very good, if the press can not return oil, its mechanical parts will be seriously worn.