REFRIGERATOR SYSTEM USING NON-AZEOTROPIC REFRIGERANT, AND NON-AZEOTROPIC REFRIGERANT FOR VERY LOW TEMPERATURE USED FOR THE SYSTEM

摘要

A non-azeotropic refrigerant used in the compressor, a condenser, an evaporator, and the refrigerant from the condenser stage fast ranging from an evaporator to a compressor constituted by a heat exchanger for performing heat exchange between the refrigerant and of the process from the refrigeration system and the evaporator system, ; And in combination with a refrigerant having a low normal boiling point of the refrigerant and having a normal boiling point of less than -60 ℃ about room temperature, ; And a dew point of room temperature or more of the refrigerant after compression in the pressure of condensation, ; Further, in the pressure it characterized in that the boiling point is not less than the dew point at the pressure of the low-pressure process from the evaporator to the compressor. ; It has a high boiling point in the vicinity of room temperature as a combination of components wherein the refrigerant, as the refrigerant of butane, isobutane, and second low-boiling point suitable for the low-temperature refrigerant to the low vapor pressure can be used to ethane, ethylene and the like. ; A non-azeotropic refrigerant, ultra low temperature refrigeration system, isobutane, ethane, ethylene