Refrigerant replacing r-134a and its preparation method and application

The technology of a refrigerant, R-152, is applied in the field of the refrigerant that replaces R-134A and its preparation, which can solve the problems of high drying and cleaning requirements of the refrigeration system, no environmental protection features, unfavorable refrigeration system, etc., and achieves good energy saving effect. , The effect of large latent heat of evaporation and avoiding equipment waste

Active Publication Date: 2021-10-29
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-134A does not destroy the ozone layer at all, its global warming potential value reaches / (GWP) 1300, 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 refrigeration refrigerants; and It has a certain water solubility, so it is not good for the refrigeration system. When there is water, it will interact with lubricating oil, etc., and will produce acid, carbon dioxide or carbon monoxide, which will corrode metals, so it has high requirements for the drying and cleaning of the refrigeration system.

Method used

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  • Refrigerant replacing r-134a and its preparation method and application
  • Refrigerant replacing r-134a and its preparation method and application
  • Refrigerant replacing r-134a and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] A refrigerant replacing R-134A, which is prepared by fully mixing the following raw materials in parts by weight: 22.5 parts of fluoroethane; 31.7 parts of propylene; 23.6 parts of difluoroethane; 22.2 parts of trifluoroiodomethane.

[0043] Its preparation method is as follows:

[0044] S1. Carry out rectification and purification of the three raw materials on the production line, and the height of the rectification tower must reach the height and standard for producing 99.96% of refrigerant raw materials;

[0045] 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;

[0046] S3. Connect the fully automatic mixing tank, and 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, ca...

Embodiment 2

[0054] A refrigerant replacing R-134A, which is prepared by fully mixing the following raw materials in parts by weight: 24.5 parts of fluoroethane; 29.6 parts of propylene; 22.8 parts of difluoroethane; 23.1 parts of trifluoroiodomethane and its preparation method Refer to the examples.

Embodiment 3

[0056] A refrigerant that replaces R-134A, which is made by fully mixing the following raw materials in parts by weight:

[0057] 25.8 parts of fluoroethane; 27.8 parts of propylene; 24.6 parts of difluoroethane; 21.8 parts of trifluoroiodomethane

[0058] Its preparation method refers to Example 1.

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Abstract

The invention belongs to the technical field of refrigerants for stationary commercial air conditioners and mobile vehicle air conditioners, and in particular relates to a refrigerant replacing R-134A and its preparation method and application. The refrigerant that replaces R-134A provided by the present invention includes the following components in parts by weight: 10-35 parts of fluoroethane; 25-60 parts of propylene; 20-50 parts of difluoroethane; 15 parts of trifluoroiodomethane ‑45 servings. The refrigerant that replaces R-134A provided by the present invention not only has a very low GWP, but also is energy-saving, environmentally friendly and has good market application prospects.

Description

technical field [0001] The invention relates to a fixed commercial air conditioner and a mobile vehicle air conditioner, specifically relating to a refrigerant replacing R-134A 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 caused serious damage to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K5/04
CPCC09K5/044C09K2205/12C09K2205/122C09K2205/40Y02P20/10
Inventor 刘菁菁
Owner 湖北瑞能华辉能源管理有限公司
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