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A kind of mixed refrigerant containing tetrafluoropropene

A technology of mixing refrigerant and tetrafluoropropylene, which is applied in the field of refrigeration and low temperature, can solve the problems of poor miscibility between refrigerant and lubricating oil, and achieve good mutual solubility, low GWP value, and good environmental protection performance

Active Publication Date: 2018-04-17
TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the technical problem to be solved by the present invention is to overcome the defect of poor miscibility between refrigerant and lubricating oil in the existing refrigeration system, and provide a mixed refrigerant containing tetrafluoropropylene with better miscibility with lubricating oil

Method used

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  • A kind of mixed refrigerant containing tetrafluoropropene

Examples

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Effect test

Embodiment 1

[0033] Example 1: R1234ze(E) with a molar concentration of 10% and propane with a molar concentration of 90% were physically mixed at room temperature to obtain a mixed refrigerant containing tetrafluoropropene.

Embodiment 2

[0034] Example 2: R1234yf with a molar concentration of 80% and propylene with a molar concentration of 20% were physically mixed at room temperature to obtain a mixed refrigerant containing tetrafluoropropylene.

Embodiment 3

[0035] Example 3: R1234ze(E) with a molar concentration of 65% and isobutane with a molar concentration of 35% were physically mixed at room temperature to obtain a mixed refrigerant containing tetrafluoropropene.

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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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K5/04
CPCC09K5/042C09K5/045C09K2205/12C09K2205/126C09K2205/24Y02P20/10
Inventor 吴剑峰董学强公茂琼沈俊
Owner TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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