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General principles of refrigeration
Nov 14, 2016

General principle of refrigerator refrigeration compressor is compressed into a lower pressure steam high steam pressure, would decrease the volume of steam, pressure increases.

Compressor suction from the evaporator refrigerant of low pressure steam pressure into the condenser, condenses in the condenser high pressure liquid after the throttle valve, low pressure liquid, into the evaporator and evaporator heat and low pressure steam, and then fed to the evaporator inlet to complete the refrigeration cycle.

1, principles of vapor compression refrigeration

Single-stage vapor-compression refrigeration system is composed of compressor, condenser, evaporator and throttle valve consists of four basic parts. Pipes are in turn connected between them, forming a closed system, the refrigerant in the system constantly circulates, state change occurs, heat exchange with the outside world.

Liquid refrigeration agent in evaporator in the absorption was cooling of objects heat zhihou, vaporization into low temperature low voltage of steam, and was compressor inhalation, and compression into high pressure high temperature of steam back into condensation device, and in condensation device in the to cooling media (water or air) radiated, condensation for high pressure liquid, and by throttle valve throttle for low voltage low temperature of refrigeration agent, and again into evaporator endothermic vaporization, reached cycle refrigeration of purpose. In this way, through evaporation of the refrigerant in the system, compressed, condensed, throttle four basic process through a refrigeration cycle.

In refrigeration systems, evaporators, condensers, compressors and throttle are essential four parts in the refrigeration system, the evaporator is conveying and cooling equipment. Refrigerant in the absorption refrigeration by cooling body heat. The compressor is the heart, play of suction, compression, transportation role of the refrigerant vapor. Condenser is a heat device, the evaporator absorbs the heat passed along with the compressor work into heat to cooling medium away. Throttle valve throttle the refrigerant, and controlling and regulating the number of liquid refrigerant into the evaporator, and divided into the high pressure side and low pressure side of the system into two parts. Practical refrigeration system, in addition to the four large, often have auxiliary equipment, such as solenoid valves, dispensers, dryers, collector, fusible plugs, pressure controller and other components, they are run in order to improve the economy, reliability, and security settings.