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A technology of mixed refrigeration and working fluid, which is applied in the direction of heat exchange materials, chemical instruments and methods, etc., can solve the problem that the mixed refrigerant GWP cannot meet the requirements of automobile air-conditioning refrigerants, etc., and achieve the effect of weakening the flammability.
Active Publication Date: 2019-09-20
GREE ELECTRIC APPLIANCES INC
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[0004] The main purpose of the present invention is to provide a mixed refrigerant to solve the problem that the mixed refrigerant GWP in the prior art cannot meet the requirements of the automotive air-conditioning refrigerant
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Embodiment 1
[0030] The four components of trifluoroiodomethane (R13I1), fluoroethane (R161), tetrafluoroethane (R134a) and propylene (R1270) were subjected to a physical reaction in a liquid phase at room temperature at a mass percentage of 51:22:5:22. mixed as a refrigerant.
Embodiment 2
[0032] The four components of trifluoroiodomethane (R13I1), fluoroethane (R161), tetrafluoroethane (R134a) and propylene (R1270) were subjected to a physical reaction in a liquid phase at room temperature at a mass percentage of 14:76:9:1. mixed as a refrigerant.
Embodiment 3
[0034] The four components of trifluoroiodomethane (R13I1), fluoroethane (R161), tetrafluoroethane (R134a) and propylene (R1270) were subjected to a physical experiment in a liquid phase at room temperature at a mass percentage of 15:4:8:73. mixed as a refrigerant.
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Abstract
The invention provides a mixed refrigerant. The mixed refrigerant comprises trifluoroiodomethane, fluoroethane, a third component and a fourth component. The third component comprises 1,1-difluoroethane and / or 1,1,1,2-tetrafluoroethane. The fourth component is selected from one or more of trans-1,3,3,3-tetrafluoropropene, 2,3,3,3-tetrafluoropropene, carbon dioxide, propylene, dimethyl ether, difluoromethane, monofluoromethane and isobutane. The fourth component is obtained by compounding the trifluoroiodomethane and the fluoroethane with the 1,1-difluoroethane and / or the 1,1,1,2-tetrafluoroethane. The GWP (global warming potential) of the mixed refrigerant is greatly reduced, and GWP requirements of automotive air conditioner refrigerants are met.
Description
technical field [0001] The invention relates to the technical field of refrigeration materials, in particular to a mixed refrigerant. Background technique [0002] Currently, HFCs refrigerants, which are widely used in refrigeration and air-conditioning industries, are facing stringent reduction plans due to their very high global warming potential (GWP). At the same time, the European Union's automotive air-conditioning directive requires that the GWP of automotive air-conditioning refrigerants be no higher than 150. Therefore, the replacement of high-GWP refrigerant R134a, which is widely used in automotive air-conditioning, has become an inevitable trend, but no perfect alternative has yet been found. Since the mixed working fluid has the characteristics of balancing the physical properties of the refrigerant, it plays a vital role in the refrigerant replacement scheme and has become a research hotspot for scholars and enterprises at home and abroad. [0003] At present,...
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