The Solar DC Freezer is composed of five parts: compressor, condenser, evaporator, filter drier, and expansion throttle valve in series. It is filled with an appropriate amount of refrigerant. The electrical appliance controls the operation of the compressor according to the needs of the environment to achieve refrigeration transmission. Hot purpose.
The compressor raises the low-pressure gas to a high-pressure-driven fluid machine. It is the heart of the refrigeration system. It sucks in 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 the high-temperature and high-pressure refrigerant gas to the exhaust pipe to provide power for the refrigeration cycle. Refrigeration cycle. The condenser condenses the high-temperature and high-pressure refrigerant vapor discharged from the compressor into a liquid refrigerant through heat dissipation. The heat absorbed by the refrigerant from the evaporator is absorbed by the medium (atmosphere) around the condenser.
The liquid refrigerant of the evaporator is transformed into a gaseous state here. In the refrigeration system, the filter-drier functions to absorb moisture in the refrigeration system, block impurities in the system so that it cannot pass, and prevent ice blockage and dirty blockage of the refrigeration system pipeline. Since the most easily blocked part of the system is the capillary tube, the filter drier is usually installed between the condenser and the capillary tube.
The expansion throttle valve throttles and decompresses the high-pressure liquid refrigerant from the receiver dryer, adjusts and controls the amount of liquid refrigerant entering the evaporator to adapt it to changes in refrigeration load, and at the same time prevents the compressor from liquid hammering. The steam at the outlet of the evaporator is abnormally overheated.