Shanghai SUNNY-HVAC Refrigeration Equipment Co., Ltd.!
Water-cooled screw chiller freezer Air cooled box chiller
Water-cooled screw chiller freezer Air cooled box chiller
[The freezer machine is poor, it may be a problem in these few places!]
Release date:[2021/5/28] Is reading[62]次

In industrial production, there are too many freezer applications. Some frozen machines have been lost for a long time, and the maintenance is not in place. It often has poor  freezer effect. The following small-backed industry friends understand this phenomenon, find the method of processing .

Several reasons for the difference in cold cooling machines below.

Expansive valve failure

As an important part of the refrigerator refrigerant system, the expansion valve has too much, it achieves the pressure drop of condensation pressures to evaporation pressure, and also simultaneously takes into account the control of snow flow, and is great in the cooling system.

The inlet pressure of the refrigeration unit is low, and if the amount of refrigeration, the expansion valve fault is first suspected, the expansion valve is blocked, and the frozen can cause the refrigerant to enter the evaporator, resulting in a refrigeration effect. If you check that the chiller dryer does not find significant impurities, the problem of blockage blockage is excluded.

Improperization of expansion valve is not properly provided, and it can also cause an exception to determine whether or not the valve opening degree can be determined.

Evaporator failure

The evaporator is a member of the heat transfer of frozen water and the refrigerant. When the leakage occurs, the amount of cycle is reduced, and the cooling effect is deteriorated. By testing water in the heat exchanger tube, it can be determined whether or not it is this reason.

Oil water separator operation failure

The oil-water separator is a device that is separated from oil and refrigerant in a chiller system. The working conditions are harfous, and should be inspected or replaced by observing the oil separator window. The freezer is observed. This fault can be judged.

Compressor internal fault

The compressor is the core of the entire refrigeration system, which is responsible for compression, and the internal structure also determines its efficiency, such as screw type, turbable, piston or the like, as a screw, the spool adjustment work volume can realize the compressor load Variety.

The spools will fail, result in abnormal compressors, resulting in poor refrigeration effect.

The above four reasons can be extended by periodically maintained the frequency of failures, and the equipment life can also be extended, and there are a lot of  freezer factors that the  freezer machine is not refrigerated. By observation, analysis, replacement, maintenance can find and resolve this Class failure to ensure the safety of the  freezer.

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