refrigerator

A refrigerator is a device that keeps food or other items at a constant low temperature to prevent spoilage.

　　refrigeratorIt is a device that maintains a low temperature by keeping food or other items in a constant low-temperature state to prevent them from spoiling.

Here is a detailed introduction:

working principle

Compressed electricrefrigeratorPowered by an electric motor, the refrigeration system is powered by a compressor, utilizing low boiling point refrigerants to absorb heat during evaporation and vaporization. This is the most common methodrefrigeratorType, 91%~95% of the world's electricityrefrigeratorBelonging to this category.

Absorption type electricityrefrigeratorGas, kerosene, electricity and other heat sources can be used as power sources to achieve refrigeration through continuous absorption diffusion of ammonia water hydrogen mixed solution, which has low efficiency and slow cooling, and has gradually been phased out.

Semiconductor ElectronicsrefrigeratorUsing the principle of applying direct current to PN type semiconductors to generate the Peltier effect at nodes to achieve refrigeration.

classification

Classified by internal cooling method: can be divided into cold air forced circulation type (air-cooled or frost free)refrigerator）Natural convection type of air conditioning (direct cooling or frost electric)refrigerator）Combined with forced circulation of air conditioning and natural convection.

Classified by purpose: can be divided into refrigerated containers, refrigerated freezers, and freezers. At least one compartment of the refrigerator is a refrigerated compartment used to store food that does not need to be frozen; At least one compartment of the refrigerated freezer is a refrigeration compartment and one compartment is a freezing compartment; At least one freezer compartment should be used as a freezer and be able to store food according to regulations.

Classified by appearance: can be divided into single door electricrefrigeratorDouble door electricrefrigeratorThree door electricityrefrigeratorFour door electricityrefrigeratorWait. Single door electricityrefrigeratorThe refrigeration and freezing compartments are combined into one box; Double door electricrefrigeratorThe refrigeration and freezing compartments are separated and have two doors; Three door electricityrefrigeratorIn the upper and lower dual door electric systemrefrigeratorOn the basis of this, an additional fruit and vegetable room will be added below; Four door electricityrefrigeratorIn the three gates of electricityrefrigeratorOn the basis of this, a mild freezer has been added.

Classified by placement method: can be divided into vertical electricrefrigeratorHorizontal electricrefrigeratorAnd desktop computersrefrigeratorVertical electricrefrigeratorThe box door is located atrefrigeratorDirectly ahead, occupying a small area; Horizontal electricrefrigeratorThe door of the box is mostly located at the top of the box, and the freezer is usually horizontal. Opening the door upwards can reduce heat leakage, but it takes up a large area and is not very convenient for storing and retrieving items; Desktop ElectricrefrigeratorMostly used as refrigerated containers, suitable for storing cold drinks and fruits.