Refrigerant capable of being directly filled for replacing R22

A technology of refrigerant and composition, applied in the field of refrigerant composition and refrigerant composition replacing R22, can solve the problems of strong flammability, low efficiency, high GWP value, etc.
CN102153992AInactive Publication Date: 2011-08-17于淑芳
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
于淑芳
Publication Date
2011-08-17
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention provides a refrigerant composition capable of being directly filled for replacing R22 in systems such as a household air conditioner / heat pump and the like. The refrigerant comprises pentafluoroethane (R125), 1,1,1,2- tetrafluoroethane (R134a) and dimethyl ether (DME or RE170); and the preparation method of the refrigerant comprises the following step of physically mixing all the components under a liquid phase in the corresponding proportions. The refrigerant completely meets the requirement of environment protection and has the ODP (Ozone Destruction Potential) value of zero and low GWP (Global Warming Potential) value; the thermodynamic engineering performance and the parameters of the refrigerant are very close to R22; the pressure and the exhausting temperature of a compressor are lower than those of R22; any parts and the lubricating oil of the traditional R22 system do not need to be changed or replaced when R22 is replaced with the refrigerant; the refrigerant can be filled directly and has good cycle performance same as or slightly higher than R22.
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Description

technical field

[0001] The invention belongs to the field of refrigerants and relates to a refrigerant composition, in particular to a refrigerant composition used in refrigeration and air-conditioning systems such as household air conditioners / heat pumps to replace R22. Background technique

[0002] According to the original provisions of the Montreal Protocol, developed countries will completely stop the production and consumption of non-raw material R22 in 2030, and developing countries (including my country) will stop the production and consumption of non-raw material R22 in 2040. However, in September 2007 in Montreal, Canada, the latest resolution reached by the Conference of the Parties to the Montreal Protocol stipulates that developed countries will completely stop the production and consumption of non-raw material R22 in 2020, and developing countries including China, It is necessary to freeze the production and consumption of non-raw material HCFCs (about 70% of w...

Claims

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