Ether-based refrigerant and preparation method thereof

Abstract

The invention discloses an ether-based refrigerant. The ether-based refrigerant is prepared from the following raw materials in parts by weight: 80 to 85 parts of dimethyl ether, 3 to 5 parts of castor oil, 2 to 5 parts of liquid carbon dioxide, 2 to 5 parts of isobutyl alcohol and 5 to 10 parts of trifluoroiodo methane. The ether-based refrigerant provided by the invention takes the liquid carbon dioxide and the trifluoroiodomethane as flame retardants; the thermo-engineering property of the refrigerant can be guaranteed and the combustibility of the refrigerant is reduced, so that the safety performance of the ether-based refrigerant is improved, and the filling amount of the refrigerant is increased; the ether-based refrigerant provided by the invention adopts the industrial castor oil and is used for lubricating a compressor, and the corrosiveness on a refrigeration system by the dimethyl ether can be reduced; meanwhile, the flowability of the ether-based refrigerant is improved; the isobutyl alcohol is used as a dispersant of the ether-based refrigerant, so that all the components can be uniformly dispersed and a condition that the super-cooling degree of the dimethyl ether is small is relieved; meanwhile, a flash evaporation degree is slowed down and gasification latent heat of the dimethyl ether is expressed to the greatest extent, so that the use amount is reduced.

Description

technical field [0001] The invention belongs to the technical field of refrigerants, and in particular relates to an ether-based refrigerant and a preparation method thereof. Background technique [0002] EU regulations: From January 1, 2017, all new vehicles will be completely prohibited from using air-conditioning systems with fluorinated gas refrigerants with a GWP value exceeding 150. R134a belongs to the HFCs series of refrigerants. Because of its ODP value of 0, it is non-flammable, non-explosive, non-toxic, non-irritating and non-corrosive, and is widely used in refrigeration fields such as refrigerators, freezers and air conditioners. Although its ODP value is 0, its GWP value is as high as 1300, which does not comply with EU regulations and will face full replacement, which means that R134a is about to completely withdraw from the stage of history. [0003] As an emerging environmentally friendly refrigerant, dimethyl ether has no ozone-destroying effect and no gre...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems existing in the prior art, the present invention provides an ether-based refrigerant and a preparation method thereof. The prepared refrigerant is green and environmentally friendly, and at the same time reduces the degree of corrosion of the refrigeration system and improves the condition of a small degree of subcooling

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