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Green mixed refrigerating agent

A mixed refrigerant and mixed refrigeration technology, applied in heat exchange materials, chemical instruments and methods, etc., can solve the problems of flammability and explosiveness of hydrocarbons, etc.

Inactive Publication Date: 2006-05-10
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

[0010] Embodiment 1: Take 65% HC1270, 20% HFC13I1, 15% HC170, (both are mole percentages, the same below) these three components are used as refrigerant after physical mixing at normal temperature.

Embodiment 2

[0011] Example 2: Take 65% HC1270, 30% HFC134a, 5% HC170, and physically mix these three components at room temperature as a refrigerant.

Embodiment 3

[0012] Embodiment 3: Take 65% HC290, 20% HFC134a, 15% HC170, and physically mix these three components at normal temperature as a refrigerant.

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PUM

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Abstract

Hydrocarbon / flame retardant mixed refrigerant, containing HFC13I1, HFC134a, CO 2 , the above three working fluids are not only used as refrigerants in the refrigeration system, but also as flame retardants. By HFC13I1, HFC134a, CO 2 They are different hydrocarbon / flame retardant mixed refrigerants with HC1270, HC170, and HC290. The beneficial effect of the present invention is that, by introducing flame retardant component working medium, and changing the components and composition of the mixture, the flammability of the working medium is reduced at the source, and the composition is mainly composed of natural working medium, and the environmental characteristics, safety and cycle HCs / flame retardant mixed working fluid with excellent performance, used to replace HCFC22 in air conditioning system.

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 ex...

Claims

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Application Information

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Patent Type & Authority Patents(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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