Introduction to the characteristics of the quick freezer

The quick freezer is composed of five parts in series: compressor, condenser, evaporator, dry filter, and expansion throttle valve. The right amount of refrigerant is injected into it, and the electrical appliance controls the operation of the compressor according to the needs of the environment to achieve refrigeration and heat transfer. the goal of.

compressor

A driven fluid machine that raises low pressure gas to high pressure. The quick freezer is the heart of the refrigeration system. It inhales low-temperature and low-pressure refrigerant gas from the suction pipe, drives the piston to compress it through the operation of the motor, and discharges high-temperature and high-pressure refrigerant gas to the exhaust pipe to provide power for the refrigeration cycle. In this way, a refrigeration cycle of compression→condensation→expansion→evaporation (heat absorption) is realized.

condenser

The high-temperature and high-pressure refrigerant vapor discharged from the compressor is condensed into liquid refrigerant through heat dissipation, and the heat absorbed by the refrigerant from the evaporator is absorbed by the medium (atmosphere) around the condenser.

Evaporator

The liquid refrigerant is converted to gaseous state here.

filter drier

In the refrigeration system, the function of the dry filter is to absorb the moisture in the refrigeration system, block the impurities in the system so that they cannot pass through, and prevent ice blockage and dirty blockage in the refrigeration system pipeline. Since the capillary (or expansion valve) is the most easily blocked part of the system, the dry filter is usually installed between the condenser and the capillary (or expansion valve).

Expansion throttle valve

Throttling and depressurizing the high-pressure liquid refrigerant from the liquid storage dryer, adjusting and controlling the amount of liquid refrigerant entering the evaporator, so as to adapt to the change of refrigeration load, and at the same time prevent the liquid hammer phenomenon of the compressor and the vapor at the outlet of the evaporator Abnormal overheating.