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An environmentally friendly mixed refrigerant replacing r290

A mixed refrigerant and environmentally friendly technology, applied in the direction of heat exchange materials, chemical instruments and methods, can solve the problems of low GWP, poor safety performance of refrigerants, etc., and achieve the effect of excellent safety performance and good thermal performance

Active Publication Date: 2021-02-26
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of this, the present invention provides an environmentally friendly mixed refrigerant to replace R290. The environmentally friendly mixed refrigerant has good environmental performance, not only does not destroy the atmospheric ozone layer, that is, ODP is zero, but also has a lower GWP (GWP is lower than 150), which is safe The performance is better than R290, and the thermal performance is not much different from R290 or even better, which solves the technical problem of poor safety performance of R290 refrigerant in household air conditioners

Method used

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  • An environmentally friendly mixed refrigerant replacing r290
  • An environmentally friendly mixed refrigerant replacing r290
  • An environmentally friendly mixed refrigerant replacing r290

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Example 1, the three components of 1,1-difluoroethane (R152a), 2,3,3,3-tetrafluoropropene (R1234yf) and propane (R290) were prepared in 24: The molar ratio of 72:4 is physically mixed, and the mixture is evenly mixed to obtain an environmentally friendly mixed refrigerant.

Embodiment 2

[0023] Example 2, the three components of 1,1-difluoroethane (R152a), 2,3,3,3-tetrafluoropropene (R1234yf) and propane (R290) were pressed at 28: 68:4 molar ratio for physical mixing, mixing evenly to obtain an environmentally friendly mixed refrigerant.

Embodiment 3

[0024] Example 3, the three components of 1,1-difluoroethane (R152a), 2,3,3,3-tetrafluoropropene (R1234yf) and propane (R290) were prepared in 32 at normal temperature and pressure liquid phase: 64:4 molar ratio for physical mixing, mixing evenly to obtain an environmentally friendly mixed refrigerant.

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Abstract

The present invention provides an environmentally friendly mixed refrigerant to replace R290, which includes a first component, a second component and a third component, wherein: the first component is 1,1-difluoroethane (R152a), and the second component is The second component is 2,3,3,3-tetrafluoropropene (R1234yf), the third component is one of propane (R290), isobutane (R600a) and propylene (R1270), and the environmentally friendly mixed refrigerant It has a global warming potential (GWP) not greater than 150; and ODP is zero, and its flammability is lower than R290, its safety performance is better than R290, and its thermal performance is equal to or even better than that of R290 refrigerant. It can completely replace R290 in refrigeration settings Especially used on household air conditioners.

Description

technical field [0001] The invention relates to the technical field of refrigerants, in particular to an environmentally friendly mixed refrigerant replacing R290. Background technique [0002] With the increasingly serious trend of environmental protection, regarding the "greenhouse effect" of HFCs, the Montreal Protocol Amendment requires a refrigerant that does not destroy the ozone layer and has a lower GWP value to replace the current high-GWP refrigerant and be effectively used in air-conditioning systems middle. As the natural working substance R290 has relatively good environmental protection performance, it is often used in household air conditioning systems, but because it is a flammable refrigerant of the A3 class, it has a great lack of safety. Refrigerants with high thermal performance equivalent to or even better than R290 are used as substitutes. Contents of the invention [0003] In view of this, the present invention provides an environmentally friendly ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K5/04
CPCC09K5/045C09K2205/12C09K2205/122C09K2205/126C09K2205/40
Inventor 雷佩玉钟权赵桓黄宇杰
Owner GREE ELECTRIC APPLIANCES INC