1 Refrigerant circulation: In the cold storage, the refrigerant absorbs the heat in the warehouse through the evaporator and turns it into low-pressure steam, which is then sucked in by the compressor and compressed into high-pressure steam. The high-pressure steam releases heat through the condenser and becomes a liquid, which is then depressurized through the expansion valve and then becomes a low-pressure liquid. This low-pressure liquid is again sucked into the evaporator, creating a cycle.
2 Cooling cycle: The cooling cycle is mainly achieved by means of coolant. The coolant absorbs heat from the condenser and then enters the cooling coil through the cooling water pump, transferring the heat to the air around the cooling coil and then returning to the condenser to continue circulation.
3 Energy exchange: During the refrigeration process, energy is continuously transferred from the cooled object to the refrigerant and then to the air around the coolant. In this process, energy is transferred from a hot object to a cold object.
4 Temperature control: In cold storage, the temperature is achieved by controlling the flow rate of the refrigerant and the circulation rate of the coolant. When the temperature in the warehouse rises, the refrigerant flow rate increases and the coolant circulation speed increasesWhen the temperature in the warehouse decreases, the refrigerant flow decreases and the coolant circulation slows down.
5 Dehumidification process: During the refrigeration process, the water vapor in the air will condense into water droplets and attach to the cooling coil. These water droplets are removed regularly to prevent scale or microbial growth on the cooling coils.
6 Regular maintenance: In order to ensure the normal operation and prolong the service life of the cold storage, it is necessary to carry out regular maintenance of the cold storage, including checking the leakage of refrigerant and replacing the filter, etc.