NON-FLAMMABLE MIXED REFRIGERANT HAVING LOW GREENHOUSE EFFECT AND USE THEREOF

摘要

Provided are a mixed refrigerant that is non-flammable and has a low greenhouse effect, and the use thereof. The mixed refrigerant comprises the following components in mass fractions: 4%-31.5% of R125, 50%-80% of R1234ze(E) and 12%-22% of R1234yf. The mixed refrigerant, in fitting combination within the amount ranges of all the components, makes the refrigerant non-flammable, and the ODP thereof is 0, and the GWP thereof is no greater than 1000. The mixed refrigerant can be used in a refrigeration system, has no ozone destructive power, reduces the greenhouse effect, has a lower temperature glide, and belongs to ternary azeotropic or nearly azeotropic refrigerants, which is beneficial to the stable operation of a refrigeration system. The mixed refrigerant can also serve as a foaming agent or aerosol propellant, and has the advantages of being non-flammable, having a low ozone destruction index, and being environmentally friendly and safe and reliable.