Green mixed refrigerating agent

A technology of mixing refrigerants and refrigerants, applied in the direction of heat exchange materials, chemical instruments and methods, etc., can solve the problems of flammable and explosive hydrocarbons, etc.

Inactive Publication Date: 2003-04-23
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the flammability and explosiveness of hydrocarbons hinder their wide application

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0008] Example 1: Take 65% HC1270, 20% HFC13I1, and 15% HC170, and physically mix these three components at room temperature as a refrigerant.

Embodiment 2

[0009] Example 2: Take 65% HC1270, 30% HFC134a, and 5% HC170, and physically mix these three components at room temperature as a refrigerant.

Embodiment 3

[0010] Example 3: Take 65% HC290, 20% HFC134a, and 15% HC170, and physically mix these three components at room temperature as a refrigerant.

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PUM

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Abstract

The new type mixed refrigerant contains HFC131, HFC134a and CO2, the above-mentioned three working substances not only can be used as refrigerant, but also can be used as tire retardent in the refrigerating system. The HFC131, HFC134a and CO2 can be respectively combined with HC1270, HC170 and HC290, and can be formed into new type greenmixed refrigerants, wich different constituents and components, the different constitutents and components can adopt different mole mixing ratio. By adding fire retardant working substance said refrigerant can possess optimum HCs/fire retardant mixed substance, and can be used in air-conditioning system instead of HCFC22.

Description

technical field [0001] The invention belongs to the refrigerant in the air-conditioning or refrigeration system. Background technique [0002] Since the phase-out of HCFC22 is a foregone conclusion, the research to find its substitute is being carried out rapidly all over the world. So far, more mature substitutes include HFC134a, HFC32 / HFC134a, HFC32 / HFC125 / HFC134a (R407C, mass composition 23 / 25 / 52%) and HFC32 / HFC125 (R410A, mass composition 50 / 50%) and other halogenated hydrocarbon. However, as the greenhouse effect brings increasingly serious consequences and disasters to the global ecological environment, people begin to pay more and more attention to the environmental issue of global warming. In fact, as long as it is artificially synthesized refrigerant, it may bring new, unexpected, harmful problems to the environment or human beings. Therefore, it is inevitable to turn the attention of substitute research to natural substances with e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K5/04
Inventor 王怀信李海龙马利敏刘方
Owner TIANJIN UNIV
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