Take a two-door refrigerator as an example: a compressor is installed at the bottom of the refrigerator, and its task is to increase the pressure of gaseous freon entering the compressor. The pressurized gaseous freon has a high temperature, so it enters the condenser to cool down and becomes liquid freon. Liquid Freon is dried, filtered and spiral capillary to remove dirt and moisture mixed in liquid Freon and reduce pressure. Finally, it enters the evaporator of the upper freezer of the refrigerator and quickly evaporates into gaseous freon, which absorbs a lot of heat of food stored in the freezer of the refrigerator. After this process, the freon turned into gas is sucked by the compressor again and enters the next refrigeration cycle. After one cycle after another, the temperature in the refrigerator drops rapidly until it reaches the specified freezing temperature, and the compressor automatically stops running and waits for restarting.
Difference:
1, cold storage is mainly used for food, dairy products, meat, aquatic products, etc. Cold storage is actually a kind of low-temperature cold storage (cold storage), and it also belongs to a kind of refrigeration equipment. Compared with the refrigerator, its refrigeration area is much larger, but their refrigeration principle is the same.
2. The refrigerator is a kind of refrigeration equipment that keeps a constant low temperature, and it is also a civilian product that keeps food or other items at a constant low temperature. There are compressors, ice makers, cabinets or boxes for refrigeration, and there are storage boxes with refrigeration devices in the boxes. The volume of domestic refrigerators is usually 20 ~ 500 liters.