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Refrigerant replacing r134a and its preparation method and application

A technology of refrigerants and mixed refrigerants, applied in the field of refrigerants replacing R-134a and its preparation, can solve problems such as replacement of new air conditioners, achieve the effects of reducing working pressure, portable operation, and low water solubility

Active Publication Date: 2021-06-25
HUBEI GREEN COLD HI TECH ENERGY SAVING TECHCO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Developed countries use government financial subsidies to replace new energy-saving and environmentally-friendly air conditioners, but in my country so far only environmentally friendly and non-energy-saving air conditioners account for only 5% of the total number of air conditioners. The current economic status of our country cannot replace new air conditioners with national financial subsidies. In order to meet the requirements of building energy saving

Method used

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  • Refrigerant replacing r134a and its preparation method and application
  • Refrigerant replacing r134a and its preparation method and application
  • Refrigerant replacing r134a and its preparation method and application

Examples

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Comparison scheme
Effect test

Embodiment 1

[0034] Instead of stationary refrigeration compressors, use R-134a refrigerant, which is made by fully mixing the following raw materials in parts by weight: 22 parts of fluoroethane (R161), 16 parts of Z-1,2,3,3, 3-pentafluoropropene (Z-R1225ye), 62 parts of 1,1,1,2,3,3,3-heptafluoropropane R227ea, the preparation method is as follows:

[0035] 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;

[0036] 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;

[0037] 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;

[0038] S4. Vacuumize the fully automatic mixing tank to reach a negative pressure state;

[0039]...

Embodiment 2

[0044] A refrigerant that replaces the use of R-134a in stationary refrigeration compressors, which is made by fully mixing the following raw materials in parts by weight: 24 parts of fluoroethane (R161), 18 parts of Z-1,2,3, 3,3-Pentafluoropropene (Z-R1225ye), 58 parts of 1,1,1,2,3,3,3-heptafluoropropane R227ea. Its preparation method is identical with embodiment 1.

Embodiment 3

[0046] A refrigerant that replaces the use of R-134a in stationary refrigeration compressors, which is made by fully mixing the following raw materials in parts by weight: 26 parts of fluoroethane (R161), 15 parts of Z-1,2,3, 3,3-Pentafluoropropene (Z-R1225ye), 49 parts of 1,1,1,2,3,3,3-heptafluoropropane R227ea. Its preparation method is identical with embodiment 1.

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Abstract

The invention belongs to the technical field of refrigerants, and in particular relates to a refrigerant replacing R-134a and its preparation method and application. The refrigerant replacing R-134a includes the following components in parts by weight: 16-38 parts of fluoroethane, 10-28 parts of Z-1,2,3,3,3-pentafluoropropene, 40-75 parts 1,1,1,2,3,3,3‑Heptafluoropropane. The preparation method comprises the steps of: mixing each component in a vacuumized mixing tank according to the amount of the formula to obtain the refrigerant substituting R-134a. The refrigerant (R-469) replacing R-134a provided by the present invention has the effect of zero ozone depletion value (ODP) and extremely low greenhouse effect (GWP), and is energy-saving and environmentally friendly.

Description

technical field [0001] The invention belongs to the technical field of refrigerants, and in particular relates to a refrigerant replacing R-134a and its preparation method and application. Background technique [0002] This year, the Ministry of Industry and Information Technology, the State Council Administration Bureau, and the National Energy Administration put forward the "green refrigeration" development strategy according to the State Council, combined with the notice of the "Green and Efficient Refrigeration Action Plan" issued by the National Development and Reform Commission in 2019, for the green economy , circular economy and the core requirements of environmental protection, the country seeks advanced energy-saving technology products that are green, environmentally friendly, efficient and energy-saving. [0003] Since the signing of the "Montreal Protocol", countries have launched research on energy-saving and environmentally friendly refrigerants. The alternati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K5/04
CPCC09K5/045Y02P20/10
Inventor 黄追苏静李清辉
Owner HUBEI GREEN COLD HI TECH ENERGY SAVING TECHCO
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