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Refrigerant capable of directly filling to substitute R22

A technology of refrigerants and compositions, applied in heat exchange materials, chemical instruments and methods, etc., can solve the problems of strong flammability, high replacement cost, high GWP value, etc.

Active Publication Date: 2008-08-20
SHANDONG DONGYUE CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The mixtures in these applications are basically researched and developed to replace R22, but these mixtures exist or have high GWP value, or have strong flammability, or have a large slip temperature, or are not compatible with R22 system, Or low efficiency, or expensive and high replacement costs, etc.

Method used

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  • Refrigerant capable of directly filling to substitute R22
  • Refrigerant capable of directly filling to substitute R22
  • Refrigerant capable of directly filling to substitute R22

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Example 1: Refrigerant composition, the components are as follows:

[0038] Pentafluoroethane 45%, 1,1,1,2-tetrafluoroethane 52%, dimethyl ether 3%.

[0039] Preparation method: The refrigerant is obtained by physically mixing the above three components in the liquid phase.

Embodiment 2

[0040] Example 2: A refrigerant composition, the components are as follows:

[0041] Pentafluoroethane 46%, 1,1,1,2-tetrafluoroethane 50%, dimethyl ether 4%. The preparation method is the same as in Example 1.

Embodiment 3

[0042] Example 3: Refrigerant composition, the components are as follows:

[0043] Pentafluoroethane 46%, 1,1,1,2-tetrafluoroethane 48%, dimethyl ether 6%. The preparation method is the same as in Example 1.

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Abstract

The invention provides a refrigerant combination which can be directly filled to replace R22 in systems like domestic air-conditioners and heat pumps, and consists of pentafluoroethane(R125), 1,1,1,2-tetrafluorothane(R134a) and dimethylether(DME or RE170), the preparation method is that each component is done with physical mixture in liquid phase according to corresponding proportions, the refrigerant completely meets the requirements of environmental protection, the value of ODP is zero, the value of GWP is low, the thermal performance and parameters are rather near to R22, the pressure and the exhaust temperature of a compressor are lower than R22, the refrigerant can be directly filled without adjusting or exchanging any part or lubricating oil in present R22 systems, moreover, the cycle performance is similar to or slightly higher than R22.

Description

[0001] (Please finalize) Technical field [0002] The invention belongs to the field of refrigerants, and relates to a refrigerant composition, in particular to a refrigerant composition that is used in refrigeration and air-conditioning systems such as household air conditioners / heat pumps to replace R22. Background technique [0003] According to the original provisions of the Montreal Protocol, developed countries will completely stop non-raw material R22 production and consumption in 2030, and developing countries (including my country) will stop non-raw material R22 production and consumption in 2040. However, the latest resolution reached by the Montreal Protocol Conference of the Parties held in Montreal, Canada in September 2007 stipulated that developed countries will completely stop the production and consumption of non-raw material R22 in 2020, including developing countries including China. It is necessary to freeze the production and consumption of non-raw material HC...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K5/04
Inventor 王鑫庞峰于修源孙森
Owner SHANDONG DONGYUE CHEM
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