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Refrigerant replacing r-32 and its preparation method and application

A technology for R-32 and refrigerant, which is applied in the field of refrigerant replacing R-32 and its preparation, can solve the problems of high drying and cleaning requirements of refrigeration system, lack of environmental protection characteristics, unfavorable refrigeration system, etc. , installation and after-sales convenience, the effect of high unit cooling capacity

Active Publication Date: 2021-04-13
湖北瑞能华辉能源管理有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although R-32 does not destroy the ozone layer at all, its global warming potential value reaches / (GWP) 1000, it does not have environmental protection characteristics, and its energy consumption is relatively high during refrigeration operation, which cannot meet the current national requirements for advocating high-efficiency, energy-saving and green refrigerants; and It has a certain water solubility, so it is not good for the refrigeration system. When there is moisture, it will interact with lubricating oil, so it has high requirements for the drying and cleaning of the refrigeration system.

Method used

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  • Refrigerant replacing r-32 and its preparation method and application

Examples

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Comparison scheme
Effect test

Embodiment 1

[0041] A refrigerant replacing R-32, which is prepared by fully mixing the following raw materials in parts by weight: 12 parts of isobutane; 28 parts of octafluoropropane; 46 parts of difluoroethane; 14 parts of trifluoroiodomethane.

[0042] Its preparation method is as follows:

[0043] S1. Carry out rectification and purification of the three raw materials on the production line, and the rectification tower meets the height and standard of 99.96% of the refrigerant raw materials;

[0044] S2. The purity of the three raw materials is tested by an Agilent color analyzer to ensure that the purity reaches 99.96% of refrigerant grade;

[0045]S3. Connect the fully automatic and multi-functional microwave vacuum mixing tank. The model of the fully automatic and multi-functional microwave vacuum mixing tank is: YDL--6000L. The multifunctional microwave vacuum mixing tank has a fast heat reflux speed, can carry out normal pressure extraction, and shortens the production time by m...

Embodiment 2

[0053] A refrigerant replacing R-32, which is prepared by fully mixing the following raw materials in parts by weight: 15 parts of isobutane; 30 parts of octafluoropropane; 49 parts of difluoroethane; 16 parts of trifluoroiodomethane. Its preparation method refers to Example 1.

Embodiment 3

[0055] A refrigerant that replaces R-32, which is made by fully mixing the following raw materials in parts by weight: 17 parts of isobutane; 33 parts of octafluoropropane; 32 parts of difluoroethane; 18 parts of trifluoroiodomethane, Its preparation method refers to Example 1.

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Abstract

The invention belongs to the technical field of household and commercial small split air-conditioning refrigerants, and in particular relates to a refrigerant replacing R-32 and its preparation method and application. The refrigerant replacing R-32 includes the following components in parts by weight: 8-25 parts of isobutane; 20-45 parts of octafluoropropane; 30-60 parts of difluoroethane; 10-25 parts of trifluoroiodomethane . The refrigerant substituting R-32 provided by the invention not only has a very low GWP, but also is energy-saving and environment-friendly.

Description

technical field [0001] The invention belongs to the technical field of household and commercial small split air-conditioning refrigerants, and in particular relates to a refrigerant replacing R-32 and its preparation method and application. Background technique [0002] Since the signing of the "Montreal Protocol", countries have launched research on energy-saving and environmentally friendly automotive refrigerants. During this period, the alternative refrigerants proposed are mainly for the purpose of protecting the ozone layer, and the development of HFCs refrigerants is one of the hot topics. But after the "Kyoto Protocol" was signed, people turned to focus on the protection of the ozone layer and the reduction of the greenhouse effect at the same time, not only requiring the ODP of the refrigerant to be zero, but also the GWP to be small. [0003] As we all know, in recent years, the extensive use of fluorine-containing refrigerants such as CFC (freon) and HCFC has caus...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K5/04
CPCC09K5/044C09K2205/12C09K2205/122C09K2205/128C09K2205/40
Inventor 刘菁菁
Owner 湖北瑞能华辉能源管理有限公司
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