Refrigerant for replacing R32 and application thereof

A refrigerant, R32 technology, applied in heat exchange materials, chemical instruments and methods, etc., can solve the problems of unfavorable refrigeration systems, high requirements for drying and cleaning of refrigeration systems, and achieve the effects of low water solubility and extended service life.

Inactive Publication Date: 2021-10-26
中节硕能科技湖北有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a refrigerant that replaces R32 and its application in view of the deficiencies of the prior art. role, so it has high requirements for the drying and cleaning of the refrigeration system

Method used

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  • Refrigerant for replacing R32 and application thereof

Examples

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Comparison scheme
Effect test

preparation example Construction

[0035] The present invention also provides a method for preparing a refrigerant that replaces R32, which is used to prepare the refrigerant that replaces R32 as described above. The preparation method includes the following steps:

[0036] Step S110: performing rectification and purification of various raw materials through a rectification tower.

[0037] Specifically, various such raw materials include propane, fluoroethane, pentafluoroethane, trifluoroiodomethane, and fluorosilicone oil. The height of the rectification tower must reach the height and standard for producing 99.99% of refrigerant raw materials.

[0038] Step S120: Testing the various purified raw materials to ensure that the purity of the purified various raw materials reaches a preset standard.

[0039] Optionally, in this embodiment, each raw material is tested by an Agilent color analyzer to ensure that its purity reaches 99.99% of refrigerant grade.

[0040] Step S130: Vacuumize the fully automatic mixin...

Embodiment 1

[0053] A refrigerant that replaces R32 (hereinafter referred to as R551) is made by fully mixing the following raw materials in parts by weight: 22-37 parts of propane; 12-17 parts of fluoroethane; 12-17 parts of fluoroethane; 42-52 parts of alkane; 12-22 parts of trifluoroiodomethane; 2-5 parts of fluorosilicone oil.

[0054] The preparation method of R551 is as follows: S1. Distillation and purification of various raw materials on the production line. The height of the rectification tower must reach the height and standard of producing 99.99% of refrigerant raw materials; S2. The purity of various raw materials is determined by Agilent color analyzer Test to ensure that its purity reaches 99.96% of the refrigerant grade; S3, connect the fully automatic mixing tank; S4, vacuumize the fully automatic mixing tank to reach a negative pressure state; S5, reach the standard according to the proportion by weight Add the raw materials into the automatic mixing tank; S6, start the ne...

Embodiment 2

[0056] R551 is made by fully mixing the following raw materials in parts by weight: 20-30 parts of propane; 15-20 parts of fluoroethane; 45-50 parts of pentafluoroethane; 15-25 parts of trifluoroiodomethane; 10 servings. Its preparation method is basically identical with embodiment 1.

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Abstract

The invention discloses a refrigerant for replacing R32 and application thereof. The refrigerant for replacing R32 comprises propane, fluoroethane, pentafluoroethane, trifluoroiodomethane and fluorosilicone oil. In the technical scheme of the invention, the refrigerant for replacing R32 is obtained by an applicant through a large number of tests and screening, and is prepared by mixing five components in a specific proportion, and the water solubility of each component of the refrigerant for replacing R32 is small, does not generate chemical action with lubricating oil in original refrigeration equipment, and is compatible with the lubricating oil in the original refrigeration equipment; the fluorosilicone oil in the refrigerant for replacing R32 can enable a compressor to be more lubricated, and the service life of the compressor can be prolonged.

Description

technical field [0001] The invention relates to the technical field of refrigerants, in particular to a refrigerant replacing R32 and its application. Background technique [0002] With the progress of society and the rapid development of refrigeration technology, while more and more refrigeration equipment meets people's daily production and living needs, it also brings serious worldwide problems, especially the refrigerant CFCs (chlorofluorocarbons) ) and HCFCs (hydrochlorofluorocarbons) have brought great damage to the atmospheric ozone layer. R32, as the current mainstream commercial refrigeration equipment refrigerant, is also a nationally recognized and recommended commercial refrigeration equipment refrigerant, with a huge annual consumption. Although R32 does not destroy the ozone layer, R32 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 th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K5/04
CPCC09K5/044
Inventor 王强
Owner 中节硕能科技湖北有限公司
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