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The Reason For The Slow Freezing Speed Of Flake Ice Machine

Nov. 29, 2019

Some friends report that the freezing speed of the flake ice machine will slow down. So what are the reasons for the slow freezing speed of the direct cooling flake ice machine? Industrial Flake Ice machine supplier share with you.

Flake Ice Machine

1. The evaporator surface becomes dirty, greasy or dusty, and the heat transfer effect decreases. This situation is mainly caused by long idle time of equipment, unqualified water quality, poor use environment of equipment and other reasons. In addition to the poor heat transfer effect of the evaporator, the surface of the evaporator becomes too thick due to the dust that has not been cleaned for a long time, and the heat transfer efficiency also decreases significantly.

2, due to the direct cooling ice block machine insulation effect or poor sealing performance, cold loss. The poor performance of heat preservation and insulation is caused by the insufficient thickness of the insulation layer, uneven thickness of the evaporator plate and poor effect of heat preservation and insulation, which is mainly caused by manufacturers' improper selection of insulation layer thickness or production process. In addition, the insulation and moisture resistance of the adiabatic material may be damaged during the use of the device, which may result in moisture exposure, deformation and even erosion of the adiabatic layer. The thermal insulation performance of thermal insulation material decline, direct cooling ice machine effect is poor. Another important reason is the poor insulation and sealing performance of the equipment. Condensation usually occurs around the insulation of the equipment, which indicates that the part is not tightly sealed.

3. There is more air or frozen oil in the evaporator of the direct-cold block ice machine, so the heat transfer effect decreases. Once the inner surface of the evaporator heat exchanger tube is attached with frozen oil, its heat transfer coefficient will decrease. Similarly, if there is more air in the heat exchange tube, the heat transfer area of the evaporator will be reduced, the heat transfer efficiency will be significantly reduced, and the freezing effect will be correspondingly slowed down. Therefore, in the daily operation and maintenance, attention should be paid to the elimination of oil stains on the inner surface of the evaporator heat pipe in time to improve the heat transfer efficiency of the evaporator.