The role of refrigerant in refrigeration equipment

it is in the cold storage refrigeration equipment refrigerant refrigeration cycle using a cooling medium in the system. And be able to play the role of a heat transfer.

a, in the construction of cold storage and cold storage design, the function of the refrigerant mainly through its change of state to transfer heat, it constantly cycles in the refrigeration system, under pressure from the transpiration, liquid cooling system can absorb heat transpiration become gas, and under the condensing pressure. Gaseous refrigerant gives off heat and liquefaction, heat in continuous circulation system equipment handling, so the refrigerant in the refrigeration system material transfer heat is no less homework.

2, refrigerant should has the following functions: refrigerants should have good thermal, physical, chemical, environmental protection and other aspects of the function, because there is no ideal refrigerant thoroughly, but we should try to better refrigerant selection function.

1, the unit volume refrigeration to have thrown, because of the greater the cooling ability, at the request of the refrigerating capacity, the smaller the refrigerant flow, it can reduce the volume of refrigeration equipment.

2, transpiration, moderate pressure and condensing pressure and also that said, at room temperature should be lower condensing pressure, the refrigerant evaporation pressure best near atmospheric pressure. Even higher than the atmospheric pressure, appropriate USES boiling point lower material under the atmospheric pressure.

3, easy to use the general cooling water or air condensation, also is the critical temperature of refrigerant.

4, low pressure solidification temperature.

5, the request of refrigerant density and low viscosity, density of refrigerant xiaoke decrease the diameter of pipeline will also decline compressor power consumption.

6, high coefficient of thermal conductivity, heat release and the heat exchange efficiency can progress.

7, has the stable chemical properties, at any temperature should not be divided or combined, no corrosion to the pipeline, the oil should be no chemical reaction, the solubility of lubricating oil should be moderate. Can drop the dissolution of infinite refrigerating capacity.

8, should be nontoxic and no effect to the person, not easy to burn the blasting.

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