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Mixed refrigerant containing trifluoroiodomethane

A mixed refrigerant, trifluoroiodomethane technology, applied in the field of mixed refrigerants containing trifluoroiodomethane, can solve the problem of high GWP value, achieve the effect of improving safety and reducing flammability

Active Publication Date: 2013-02-13
TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the widely used mixed alternative working fluids are R410A and R407C. The ODP values ​​of both are zero, which meets the protection requirements for the ozone layer, but the GWP value is very high.

Method used

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  • Mixed refrigerant containing trifluoroiodomethane
  • Mixed refrigerant containing trifluoroiodomethane
  • Mixed refrigerant containing trifluoroiodomethane

Examples

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Effect test

Embodiment 1

[0016] Take trifluoromethyl iodide, 1,1,1,2-tetrafluoroethane and propane for physical mixing at room temperature to obtain a safe and environmentally friendly mixed refrigerant. In the mixed refrigerant, the concentration of trifluoromethyl iodide is 1wt%, 1,1,1,2-tetrafluoroethane concentration is 40wt%, and propane concentration is 59wt%.

Embodiment 2

[0018] Take trifluoromethyl iodide, 1,1,2,2-tetrafluoroethane and propylene to physically mix at room temperature to obtain a safe and environmentally friendly mixed refrigerant. In this mixed refrigerant, the concentration of trifluoromethyl iodide is 1wt%, 1,1,2,2-tetrafluoroethane concentration is 24wt%, propylene concentration is 75wt%.

Embodiment 3

[0020] Take trifluoromethyl iodide, 1,1,2,2-tetrafluoroethane and propane for physical mixing at room temperature to obtain a safe and environmentally friendly mixed refrigerant. In the mixed refrigerant, the concentration of trifluoromethyl iodide is 10wt%, the concentration of 1,1,2,2-tetrafluoroethane is 20wt%, and the concentration of propane is 70wt%.

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Abstract

The invention relates to a mixed refrigerant containing trifluoroiodomethane, which is formed by physically mixing a component 1, a component 2 and a component 3, wherein the component 1 is trifluoroiodomethane having the function of inhibiting combustion and explosion; the component 2 is 1,1-difluoroethane; and the component 3 is propane. In the mixed refrigerant, the content of the component 1 is 1-10 wt%, the content of the component 2 is 20-40 wt%, and the content of the component 3 is 50-75 wt%. The ODP (ozone depletion potential) value of the mixed refrigerant is zero, the GWP (global warming potential) value is much smaller than that of a conventional HFC (hydrofluorocarbon) working medium, and the mixed refrigerant has favorable lubricating oil intersolubility; and thus, the mixed refrigerant can directly substitute an R22 working medium without great changes in the refrigeration system. Since the mixed refrigerant has the combustion inhibiting component, the refrigerant has greatly lower flammability and is even non-flammable, so that the safety of the refrigeration system is greatly enhanced.

Description

Technical field [0001] The invention belongs to the field of refrigerants, and particularly relates to a mixed refrigerant containing trifluoromethyl iodide. Background technique [0002] R22 (HCFC22, CHF 2 Cl) is a refrigerant widely used in air-conditioning systems with very good thermal performance and high efficiency. However, with the discovery of the ozone layer destruction mechanism and the greenhouse effect, R22 has been included in the ranks of phasing out due to its ODP (ozone depletion potential) value and high GWP (global warming potential) value. [0003] There are currently two main types of alternative working fluids for R22: one is natural working fluids, such as hydrocarbons (HCs), with zero ODP and very low GWP, but it has strong flammability; the other is synthetic hydrogen Fluorocarbons (HFCs), such as R134a, etc., have zero ODP and are not as flammable as HCs. Some HFCs have flame retardant effects, but have high GWP and have problems with lubricant solubility...

Claims

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Application Information

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IPC IPC(8): C09K5/04
Inventor 吴剑峰公茂琼董学强
Owner TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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