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Environment-friendly mixed working medium

A mixed working medium, environmental protection technology, applied in the direction of heat exchange materials, chemical instruments and methods, etc., can solve the problems of high global warming potential, insufficient heating at low temperature, etc., and achieve superior environmental protection performance, volume cooling capacity and volume Increased heating capacity, enhanced performance and system stability effects

Active Publication Date: 2019-11-22
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem of high global warming potential (GWP) of the existing R134a refrigerant and insufficient low-temperature heating, and to provide a refrigerant with good environmental performance, high volumetric cooling capacity and heating capacity, and sufficient low-temperature heating , a mixed working medium with small temperature glide and stable performance

Method used

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Examples

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Embodiment 1

[0031] Example 1: four groups of trifluoroiodomethane (R13I1), fluoroethane (R161), difluoromethane (R32) and trans-1,3,3,3-tetrafluoropropene (R1234ze(E)) At a temperature of 23-27°C, liquid-phase mixing is carried out according to the mass percentage of 49:40:5:6 and stirred for 1-2 hours as a refrigerant.

Embodiment 2

[0032] Example 2: The four components of trifluoroiodomethane (R13I1), propylene (R1270), fluoroethane (R161) and difluoromethane (R32) were mixed at a temperature of 23-27°C in a ratio of 51:9:37:3 The mass percentage is mixed in liquid phase and stirred for 1 to 2 hours as a refrigerant.

Embodiment 3

[0033] Example 3: The four components of trifluoroiodomethane (R13I1), 1,1-difluoroethane (R152a), propane (R290) and isobutane were mixed at a temperature of 23 to 27°C at a ratio of 33:34:30 : 3% by mass for liquid phase mixing and stirring for 1 to 2 hours as a refrigerant.

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Abstract

The invention relates to an environment-friendly mixed working medium, a preparation method thereof and a device comprising the environment-friendly mixed working medium. The mixed working medium comprises a first component trifluoroiodomethane (R13I1), a second component 1, 1-difluoroethane (R152a), a third component isobutane (R600a) and a fourth component, wherein the fourth component is one ofthe propane (R290) or propylene (R1270); or the mixed working medium comprises the first component trifluoroiodomethane (R13I1), the second component fluoroethane (R161), the third component difluoromethane (R32) and the fourth component, wherein the fourth component is one of trans-1, 3, 3, 3-tetrafluoropropene (R1234ze (E)) or propylene (R1270). According to the present invention, the preferredlubricant polyalkylene glycol, stabilizer butylated hydroxytoluene and extreme pressure agent zinc dialkyl dithiophosphate can be added into the environment-friendly mixed working medium, so that theperformance and stability of the mixed working medium are enhanced. Meanwhile, the mixed working medium is good in environment performance, has the GWP lower than 100, enables the volume refrigerating capacity and the volume heating capacity to be greatly improved by 30% or above, and has the smaller temperature slippage.

Description

technical field [0001] The invention relates to a mixed working fluid, in particular, the invention relates to an environment-friendly mixed working fluid. Background technique [0002] Changing the temperature is an important way for human beings to obtain a comfortable life. Whether it is an air conditioner, a refrigerator or a car, it is inseparable from temperature regulation, especially refrigeration. Refrigeration is inseparable from working fluid. HFCs refrigerants, which are widely used in the refrigeration and air-conditioning industry, have a very high global warming potential (GWP), and the environmental crisis makes them face strict reduction plans. [0003] In the field of automotive air-conditioning, EU Law 2006 / 40 / EC stipulates that from January 1, 2011, the GWP of automotive air-conditioning refrigerants for new vehicles listed in EU member states shall not exceed 150. The GWP of R134a, a high-GWP refrigerant widely used in automotive air conditioners, is as...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K5/04
CPCC09K5/044C09K2205/12C09K2205/122C09K2205/34
Inventor 黄明月梁祥飞皇甫启捷郑波
Owner GREE ELECTRIC APPLIANCES INC
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