A kind of mixed refrigerant containing tetrafluoropropene

Abstract

The invention provides a tetrafluoropropylene-containing mixture refrigerant. According to the invention, because hydrocarbon substances such as propane, propylene, iso-butane, butane, 1-butylene and iso-butylene are added in tetrafluoropropylene, the intersolubility of the refrigerant and lubricating oil is improved; besides, hydrofluorocarbon type substances containing multiple fluorine atoms, such as trifluoro-iodomethane, difluoromethane, 1,1-difluoroethane, 1,1,1,2-tetrafluoroethane, 1,1,2,2-tetrafluoroethane, 1,1,1,2,3,3,3-heptafluoropropane, 1,1,1,3,3,3-hexafluoropropane, 1,1,1,2,3,3-hexafluoropropane and 1,1,1,3,3-perfluoropropane are added in the mixture, so that the flammability of the refrigerant can be reduced.

Description

【Technical field】

[0001] The invention belongs to the technical field of refrigeration and low temperature, and relates to a refrigerant used therein, in particular to a mixed refrigerant containing tetrafluoropropene. 【Background technique】

[0002] Refrigeration technology plays an increasingly important role in people's daily life, technological progress in industrial fields and national defense construction. Traditional chlorofluorocarbons (CFCs) and hydrochlorofluorocarbons (HCFCs) refrigerants have been banned or restricted due to damage to the ozone layer, and hydrofluorocarbons (HFCs) and hydrocarbons (HCs) refrigerants as alternative working fluids have There are problems of greenhouse effect and strong flammability respectively, and refrigerant has become a bottleneck restricting the development of the industry. Therefore, the development of new environmentally friendly and efficient green refrigerants is of great significance for reducing greenhouse gas emissions...

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