An environmentally friendly refrigerant

Abstract

A refrigerant composition,which is applied to household air conditioner / heat pump and other systems for replacing R22 refrigerant, is provided. The refrigerant consists of 10-90 percent of propane (R290) and 90-10 percent of fluoroethane (R161). A preparation method of the refrigerant composition comprises physically mixing the components in the liquid state according to corresponding mixture ratio. The refrigerant composition has quite similar physical parameters with R22 and has a very small temperature glide, and is compatible with pipelines and component materials of the existing systems for R22. It has higher refrigeration efficiency and better energy-saving effect when used as replacement to R22 refrigerant, without damaging the atmospheric ozone layer and having very low global warming potential (GWP).

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...

AI Technical Summary

Problems solved by technology

The mixtures in these applications are basically researched and developed to replace R22, but these mixtures have problems such as low refrigeration efficiency, incompatibility with R22 systems, large glide temperature, high price and high replacement costs, and , these mixtures contain components with higher GWP values, and the mixtures formed have higher GWP values. In the long run, they do not meet the requirements for suppressing greenhouse gas emissions. Once new regulations for controlling greenhouse gas emissions are issued, these The application of the mixture will be greatly limited