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Environment-friendly mixed refrigerant

A mixed refrigerant, environmentally friendly technology, applied in the direction of heat exchange materials, chemical instruments and methods, etc., can solve the problems of high GWP value, high flammability, poor refrigerant performance, etc., and achieve low temperature glide and good environmental protection performance , the effect of reducing flammability

Active Publication Date: 2020-02-04
ZHEJIANG XINGTENG CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The refrigerants disclosed in the above-mentioned patents have disadvantages such as that they cannot be directly filled into tanks and applied to the HCFC-22 system, or the GWP value is relatively high, or the performance of the refrigerant is worse than that of HCFC-22, or they are more flammable. Therefore, it is necessary to develop a better New refrigerants with cooling performance, better compatibility with existing systems, and better environmental performance

Method used

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  • Environment-friendly mixed refrigerant

Examples

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Effect test

Embodiment 1

[0037] Physically mix difluoromethane, 1,1-difluoroethane, trifluoroiodomethane, and propane at room temperature to obtain a new working fluid. In this mixed refrigerant, the mass ratio is: two Fluoromethane, 13%; 1,1-difluoroethane, 33%; Trifluoroiodomethane, 8%; Propane, 46%.

Embodiment 2

[0039] Physically mix difluoromethane, 1,1-difluoroethane, trifluoroiodomethane, and propane at room temperature to obtain a new working fluid. In this mixed refrigerant, the mass ratio is: two Fluoromethane, 15%; 1,1-difluoroethane, 31%; Trifluoroiodomethane, 8%; Propane, 46%.

Embodiment 3

[0041] Physically mix difluoromethane, 1,1-difluoroethane, trifluoroiodomethane, and propane at room temperature to obtain a new working fluid. In this mixed refrigerant, the mass ratio is: two Fluoromethane, 13%; 1,1-difluoroethane, 36%; Trifluoroiodomethane, 22%; Propane, 29%.

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Abstract

The invention discloses an environment-friendly mixed refrigerant. The refrigerant comprises a component 1, a component 2, a component 3, and a component 4, wherein the component 1 comprises difluoromethane with a mass percentage of 10%-30%, the component 2 comprises 1,1-difluoroethane with a mass percentage of 29-40%, the component 3 comprises trifluoroiodomethane with a mass percentage of 8%-38%, the component 4 comprises propane and fluoroethane with a mass percentage of 12%-47%, and a mass percentage of fluoroethane in the component 4 is 0-33%. The environment-friendly mixed refrigerant has good environmental protection performance, and has lower flammability than mixed refrigerants of alkanes, olefins and ethers. In addition, the constituent working fluids of the environment-friendlyrefrigerant all have the characteristics of mature production process, and being convenient and easy to obtain, and thereby the promotion and popularization are facilitated.

Description

technical field [0001] The invention relates to a novel environment-friendly refrigerant replacing HCFC-22, in particular to a novel environment-friendly refrigerant replacing HCFC-22 in an air-conditioning system. Background technique [0002] From October 10th to 14th, 2016, the 28th Meeting of the Parties to the Montreal Protocol on Substances that Deplete the Ozone Layer was held in Kigali, Rwanda. Carbon dioxide (HFCs) emissions, thereby preventing global warming by 0.5°C by the end of the 21st century. This agreement is another milestone important document after the "Paris Agreement". HCFC-22 is included in the phase-out due to its ODP (Ozone Depletion Potential) value and high GWP (Global Warming Potential) value. [0003] At present, the main substitute refrigerants for HCFC-22 are R410A, R417B and so on. Although their ODP value is 0, their GWP is still high and cannot meet the environmental protection requirements of GWP less than 150. As a single refrigerant, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K5/04
CPCC09K5/04
Inventor 陈晓军赵景平王章明吴燕涛
Owner ZHEJIANG XINGTENG CHEM