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Mixed refrigerant containing iodotrifluoromethane

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
青岛中科未来健康研究院有限公司
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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 iodotrifluoromethane
  • Mixed refrigerant containing iodotrifluoromethane
  • Mixed refrigerant containing iodotrifluoromethane

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] Take trifluoroiodomethane, 1,1,1,2-tetrafluoroethane and propane to physically mix at room temperature to obtain a safe and environmentally friendly mixed refrigerant. In this mixed refrigerant, the concentration of trifluoroiodomethane is 1wt%, the concentration of 1,1,1,2-tetrafluoroethane is 40wt%, and the concentration of propane is 59wt%.

Embodiment 2

[0018] Take trifluoroiodomethane, 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 trifluoroiodomethane is 1wt%, the concentration of 1,1,2,2-tetrafluoroethane is 24wt%, and the concentration of propylene is 75wt%.

Embodiment 3

[0020] Take trifluoroiodomethane, 1,1,2,2-tetrafluoroethane and propane to physically mix at room temperature to obtain a safe and environmentally friendly mixed refrigerant. In this mixed refrigerant, the concentration of trifluoroiodomethane is 10wt%, 1,1,2,2-tetrafluoroethane concentration is 20wt%, propane concentration is 70wt%.

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Abstract

The invention relates to a mixed refrigerant containing iodotrifluoromethane. The mixed refrigerant is composed of a component 1, a component 2 and a component 3 which are physically mixed, wherein the component 1 is the iodotrifluoromethane with the function of fire and explosion suppression; the component 2 is 1,1,1,2-tetrafluoroethane; and the component 3 is propane; in the mixed refrigerant, the content of the component 1 is 1-10wt%, the content of the component 2 is 20-40wt%, and the content of the component 3 is 50-75wt%. The mixed refrigerant disclosed by the invention has the advantages that the ODP (Ozone Depletion Potential) value is zero, the GWP (Global Warming Potential) value is far lower than that of the conventional HFCs (Hydrofluorocarbon) working media, the lubricating oil intersolubility is favorable, and the mixed refrigerant can directly replace the R22 working medium without doing big changes for the refrigerating system; the because the components comprise the fire suppression component, the flammability of the mixed refrigerant is greatly lowered and is even lowered to be zero, and the safety of a refrigerating system is greatly enhanced.

Description

technical field [0001] The invention belongs to the field of refrigerants, in particular to a mixed refrigerant containing trifluoroiodomethane. 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 phased out due to its ODP (Ozone Depletion Potential) value and high GWP (Global Warming Potential) value. [0003] At present, there are 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 itself; 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 retardancy, but have a high GWP and have problems with the solubility of lubricating oil. It is diffi...

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 青岛中科未来健康研究院有限公司
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