Monoblock Refrigeration Unit, Both Chill And Freezes

Monoblock Refrigeration Unit, Both Chill And Freezes

A monoblock refrigeration unit that can both chill and freeze is an all - in - one cooling device integrating components like the compressor, condenser, evaporator, and expansion valve. It is capable of providing both refrigeration and freezing functions.

Structural Features: Monoblock units usually adopt an integrated design, with all key refrigeration components assembled within a single casing. This design is space - saving, simplifies installation, and requires no complicated external piping and refrigerant charging procedures on - site. For instance, some roof - mounted or wall - mounted monoblock refrigeration units can be directly installed on ceilings or walls of cold storage rooms with just a simple setup, reducing labor and time costs.

Working Principle: It operates based on the reverse Carnot cycle. The compressor compresses the refrigerant gas to increase its pressure and temperature, then the high - temperature and high - pressure refrigerant gas enters the condenser to release heat and condense into a liquid. Next, the liquid refrigerant goes through the expansion valve for throttling and depressurization, turning into a low - temperature and low - pressure two - phase fluid, and finally enters the evaporator. In the evaporator, the refrigerant absorbs heat from the surroundings for evaporation to achieve the chilling or freezing effect, and the evaporated refrigerant gas returns to the compressor to start the new cycle.

Temperature Control Range: It has a relatively wide temperature control range to meet different cooling requirements. General units can maintain the temperature precisely within the range from - 18°C to 2°C, which allows them to be applied to both the refrigeration of fresh products and the freezing of frozen goods. For example, in the food, pharmaceutical, and beverage and dairy industries, this kind of equipment can be used to store various items such as fresh produce, medicines, and ice - cream.

Compressor Type: Different power monoblock units often configure different compressors. Compressors below 1.5 hp usually adopt Embraco piston compressors, while those above 2 hp tend to use Emerson scroll compressors. Meanwhile, some inverter - type monoblock refrigeration units are also equipped with variable - speed compressors, which can adjust the cooling capacity according to the actual load to achieve the effect of energy conservation.

Defrosting Technology: To ensure the stable operation of the unit, many monoblock refrigeration units are equipped with advanced defrosting technologies. For example, some products are equipped with dual defrosting methods, namely hot freon gas defrosting and electric heating defrosting, which can efficiently remove the frost on the evaporator under different working conditions to ensure heat transfer efficiency.