Non-fluorine series refrigerant based on carbonic anhydride

A technology of carbon dioxide and refrigerant, applied in the direction of heat exchange materials, chemical instruments and methods, etc., can solve the problems of emission restrictions, aggravate the global warming effect, etc., achieve the effect of reducing carbon dioxide content, good refrigeration effect, and pollution-free cost

Inactive Publication Date: 2008-05-07
HUNAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the other hand, the emission of chlorofluorocarbons will aggravate the earth's greenhouse effect, and its emission should also be limited

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] The refrigerant is based on carbon dioxide and mixed with propane, wherein the mass percentage of carbon dioxide is 20%, and the mass percentage of propane is 80%.

[0017] Evaporating pressure (Mpa)

Embodiment 2

[0019] The refrigerant is based on carbon dioxide and mixed with propane and butane, wherein the mass percentage of carbon dioxide is 20%, the mass percentage of butane is 40%, and the mass percentage of propane is 40%.

[0020] Evaporating pressure (Mpa)

Embodiment 3

[0022] The refrigerant is based on carbon dioxide, mixed with propane, butane and isobutane, wherein the mass percentage of carbon dioxide is 10%, the mass percentage of propane is 30%, and the mass percentage of butane is 30% , the mass percentage of isobutane is 30%.

[0023] Evaporating pressure (Mpa)

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PUM

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Abstract

The invention discloses a carbon dioxide based non-fluorine refrigerant, which is characterized in that THE carbon dioxide with mass percentage between 5 and 20 percent is mixed with one or more components as the propane, butane and cyclobutane, so as to produce environmental protection and green refrigerant. The invention has the advantages of no toxicity, no pollutions, no corrosions or less combustibleness.

Description

technical field [0001] The invention relates to an environmentally friendly green refrigerant that replaces freon refrigerants, in particular carbon dioxide-based non-fluorine refrigerants, which can be applied to various large, medium and small refrigeration units, household refrigerators, air conditioners, freezers and other refrigeration equipment . Background technique [0002] The impact of refrigeration technology on modern society is very obvious, and it has developed into an indispensable and important part of people's life. Nowhere, nowhere. At present, fluorine-based refrigerants are widely used at home and abroad. Studies in recent years have proved that after leakage or discharge of chlorofluorocarbon compounds in fluorine-based refrigerants, they will decompose under the action of strong solar ultraviolet radiation and release chlorine after rising to the stratosphere (stratosphere) with the airflow. atoms (C1), and ozone in the upper atmosphere (O 3 ) molec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K5/04
Inventor 龚光彩王立平王瑞
Owner HUNAN UNIV
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