What is the difference between air-cooled and direct-cooled commercial refrigerators?

A series of refrigeration equipment such as freezers, freezers, platform refrigerated (frozen) cabinets, commercial refrigerators, refrigerated display cabinets, cooked food cabinets, kitchen refrigerators, etc. generally have two cooling methods, direct cooling and air cooling. Many customers know that there are two kinds of refrigeration methods. Cooling methods, but they may not be clear about the characteristics and advantages and disadvantages of the two cooling methods. Only after the customer understands the characteristics and differences of the two refrigeration methods, will you know what kind of refrigerator you really need when you buy these refrigeration equipment.

The characteristics and differences of the two cooling methods, direct cooling and air cooling:

Refrigeration can be described in a simple way: the difference between direct cooling refrigerators and air-cooled refrigerators can be literally known. Direct cooling can be understood as a refrigerator used at home, which is cooled by copper pipes on the inner wall of the refrigerator; while air-cooled refrigerators Similar to the air conditioner in your home, the cooling air blows out.

　　 Air-cooled refrigerator: It is equipped with a fin evaporator and a set of air duct circulation components. The fan motor will circulate the air in the box cooled by the evaporator up and down to achieve the purpose of refrigeration. Since it is blown into the cold air, it will not cause frosting by absorbing water from the stored food. Therefore, the air-cooled type is also called the frost-free type. In fact, the frost-free type means that there is no frost on the surface of the inner wall and the surface of the evaporator is still frosted, but it does not need to be manually defrosted but is automatically defrosted.

　　 Air-cooled refrigerator has fast freezing speed, no frost (automatic defrost), food preservation, and good temperature uniformity; but it consumes large power, high noise, and high price.

　　Direct cooling refrigerator: The temperature in the cold box is reduced by the natural convection of the low temperature on the surface of the evaporator, but the temperature is not uniform. It is more power-saving and has a large effective volume under the same volume. The advantages of direct cooling technology are low manufacturing cost, good preservation effect and low power consumption, but non-drawer refrigerators sometimes require manual defrosting.

　　 Direct cooling type refrigerator has low power consumption, low noise, low price, and keeps refrigerated food fresh; slow speed and poor temperature uniformity.