NON-FLAMMABLE MIXED REFRIGERANT CAPABLE OF REDUCING GREENHOUSE EFFECT AND USE THEREOF

摘要

Provided are a mixed refrigerant that is non-flammable and capable of reducing the greenhouse effect, and the use thereof. The mixed refrigerant comprises the following components in mass fractions: 10%-30% of R134a, 5%-70% of R1234ze(E), and 18%-65% of R1234yf. The mixed refrigerant of the present invention, in fitting combination with 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 400. 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 of the present invention 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.