Distinguish between good quality and bad freezer

when we select freezers, we select suitable freezers through various conditions. However, many people have no way to directly distinguish whether the quality of the freezer is good or bad, and whether it is worth buying.
first, the core of the freezer is its Compressor. A freezer needs refrigeration and depends on the compressor. Then the importance of the compressor can be imagined, so if the compressor is good, the quality of the freezer will be completely different. And we can drop a few drops of water on the evaporator to see if it can turn into ice in a few seconds, which means that the compressor is very good. Ou Xue freezer adopts famous brand high-efficiency compressor, which has fast cooling, lower noise, safety and stability. Second, the foaming layer of the freezer, it is the freezer insulation layer, only it is good, in order to save the freezer inside the freezer, the freezer can be cooled, otherwise a refrigeration, the air will run away, it is impossible to refrigerate good food. Therefore, its quality is also very important. If you identify a good foaming layer, you should try it by hand. The good foaming is very real, the weight is also very heavy, and the preservation effect and energy saving effect are better. Ou Xue freezer is made of polyurethane foam, which is not only high-strength, high-density, but also safe, energy-saving and beautiful. Third, the evaporator of the freezer is a very important component, its quality determines the refrigeration speed and preservation quality of the freezer. The commercial freezer adopts full air cooling design, large evaporation area copper tube, fast cooling and strong fresh-keeping display effect.
① evaporator design: to design the evaporator, in addition to the given load, the evaporation temperature, superheat and the liquid temperature before entering the expansion valve should also be given.
② refrigerating capacity: refrigerating capacity directly determines the effective evaporation area of evaporator, I . e. the number and size of fins and the length of pipelines.