Quaternary environment-friendly mixed refrigerant, preparation method thereof, and refrigerating system

Abstract

The invention relates to the technical field of refrigerants, and especially relates to a quaternary environment-friendly mixed refrigerant, a preparation method thereof, and a refrigerating system. The quaternary environment-friendly mixed refrigerant comprises trifluoroethylene, 2, 3, 3, 3-tetrafluoropropene, 1, 1-difluoroethane and difluoromethane, the GWP value of the quaternary environment-friendly mixed refrigerant does not exceed 21% of the GWP value of an R410A refrigerant, and the ODP value of the quaternary environment-friendly mixed refrigerant is 0. The quaternary environment-friendly mixed refrigerant comprises, by mole, 10 to 75 percent of trifluoroethylene, 5 to 15 percent of 2, 3, 3, 3-tetrafluoropropene, 5 to 10 percent of 1, 1-difluoroethane and 10 to 75 percent of difluoromethane. The preparation method of the quaternary environment-friendly mixed refrigerant comprises the following steps: mixing and stirring the components of the quaternary environment-friendly mixed refrigerant in a normal-temperature normal-pressure liquid-phase state to obtain the quaternary environment-friendly mixed refrigerant . The quaternary environment-friendly mixed refrigerant provided by the invention has the environment-friendly characteristic of low GWP, the refrigerating capacity per unit volume and the system performance coefficient are similar to or better than those of the R410A refrigerant, and the R410A refrigerant can be better replaced.

Description

technical field [0001] The present application relates to the technical field of refrigerants, in particular, to a quaternary environment-friendly mixed refrigerant, a preparation method of the quaternary environment-friendly mixed refrigerant, and a refrigeration system. Background technique [0002] Refrigerant R410A, which is commonly used in household air conditioners, has a GWP of 2088 and an ODP of 0. Due to its high GWP value, its use has been restricted in developed countries such as Europe and Japan, and its poor environmental protection performance has made the use of R410A refrigerant very popular. Big limitations. Contents of the invention [0003] In order to solve the technical problem of poor environmental protection performance of the R410A refrigerant in the prior art, the primary purpose of the present invention is to propose an environmentally friendly mixed refrigerant, which is carefully screened from multiple dimensions of the refrigerant's environmen...

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Problems solved by technology

[0003] In order to solve the technical problem of poor environmental protection performance of the R410A refrigerant in the prior art, the primary purpose of the present invention is to propose an environmentally friendly mixed refrigerant, which is carefully screened from multiple dimensions of the refrigerant's environmental protection performance and thermodynamic performance to form Compared with R410A refrigerant, an alternative refrigerant with lower GWP and equivalent thermodynamic performance, and a preparation method of the environmentally friendly mixed refrigerant and a refrigeration system using the refrigerant are proposed

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