Quaternary environment-friendly mixed refrigerant, its preparation method and refrigeration system

Abstract

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. The quaternary environment-friendly mixed refrigerant includes 2,3,3,3-tetrafluoropropene, trifluoromethyl methyl ether, trifluoroiodomethane and fluoroethane, and the GWP value of the quaternary environment-friendly mixed refrigerant is less than 100, The ODP value is 0. In terms of mole percentage, the quaternary environmentally friendly mixed refrigerant includes 5-70% of 2,3,3,3-tetrafluoropropene, 5-25% of trifluoromethyl methyl ether, and 5-25% of trifluoroiodine Methane and 15‑85% fluoroethane. The preparation method of the quaternary environment-friendly mixing system is as follows: mixing and stirring each component of the quaternary environment-friendly mixing system in a liquid phase state at normal temperature and pressure to obtain the quaternary environment-friendly mixing system. The quaternary environment-friendly hybrid system proposed by the present invention not only has the environmental protection characteristics of low GWP, but the cooling capacity per unit volume and the system performance coefficient are similar to or better than R134a, and can better replace R134a refrigerant.

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] At the end of 2020, China proposed to strive to reach the peak of carbon dioxide emissions before 2030 and strive to achieve carbon neutrality before 2060. This undoubtedly puts forward higher requirements for the refrigeration industry. In the current situation of increasingly severe global warming Under the current situation, reducing the use of HFC is the focus of the current work in the field of refrigeration. 1,1,1,2-Tetrafluoroethane (R134a) is widely used in automotive air conditioners and other refrigeration systems due to its non-toxicity, non-flammability, non-corrosion, and good material compatibility. However, with the further strengthening of the control of refrig...

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Problems solved by technology

[0003] In order to solve the technical problem of poor environmental protection performance of R134a 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 environmental protection, physical properties, performance and economical efficiency of the refrigerant to form Compared with R134a, 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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