Novel environment friendly refrigerating fluid

Abstract

The invention relates to a novel environment friendly refrigerating fluid which is prepared by 1,1-difluoroethane, difluoromethane, pentafluoroethane and carbureted hydrogen component, the carbureted hydrogen component is formed by choosing one or more than one of iso-butane, n-butane, dimethylmethane and propene with arbitrary proportion, and all components are as follows by mass percent: 5-98 percent of 1,1-difluoroethane, 1-60 percent of difluoromethane, 0-30 percent of pentafluoroethane, and 1-20 percent of the carbureted hydrogen component; the ODP value of the refrigerating fluid is zero without damaging atmospheric ozone layer, and compared with HCFC-22 and the existing substitution R407 and R410A, the GWP value is greatly reduced and the environment protecting performance is better; in addition, the charging amount is reduced, the energy efficiency ratio is improved, resource is saved, the novel environment friendly refrigerating fluid can be used as long-term substituent for HCFC-22.

Description

[0001] The application of the present invention is a divisional application with the application number 200810082668X, the application date is February 25, 2008, and the invention-creation name is "a new environment-friendly refrigerant". The original application claimed the right of priority, and the filing date of the earlier application as the basis of the priority right was November 9, 2007, the application number was 200710156803.6, and the country of the earlier application was China. technical field [0002] The present invention relates to a refrigerant, in particular to an environment-friendly refrigerant that can directly replace HCFC-22 in refrigeration, air conditioners, heat pumps and other equipment with basically unchanged system, zero atmospheric ozone destruction potential and low greenhouse effect. The global response to climate warming provides a reliable technology that is easy to popularize and apply, and has quick results. technical background [0003] ...

AI Technical Summary

Problems solved by technology

[0006] 1) Invention patents with publication numbers CN1055300C and CN1244663C use a ternary mixture of HFC-32, HFC-125 and HFC-152a as a substitute for HCFC-22, and have similar thermal properties to HCFC-22, but have not solved the problem in Under long-term operation, the compatibility of the alternative working fluid with the HCFC-22 compressor and lubricating oil

[0007] 2) The patent of invention with publication number CN1412266A uses a mixture of HFC-32, HFC-134a and HFC-143a to replace HCFC-22; the patent with publication number CN1136065A uses a mixture of HFC-32, HFC-125 and HFC-227ea to replace HCFC-22; CN1189525A uses a mixture of HFC-32, HFC-134a and HFC-227ea to replace HCFC-22, but there is a problem of high GWP value

[0008] 3) The invention patent of publication number CN1173525A uses a mixture of HC-290, HC-600a and TS flame retardant to replace HCFC-22; the invention patent of publication number CN1255502C uses a mixture of HC-1270, FC-13I1 and HC-170 Instead of HCFC-22, this type of mixture mainly uses hydrocarbons and their compositions, which has hidden dangers of haze effect and may cause new environmental problems

[0009] 4) The invention patent with publication number CN1189525A also uses a mixture of HFC-32, HFC-134a, HFC-152a and FC-13I1 to replace HCFC-22; the invention patent with publication number CN1255502C uses FC-13I1, HFC-134a and CO2 The mixture of HCFC-22 is replaced by the mixture of FC-13I1, which has good environmental performance and thermal performance, but because iodine (I) cannot be synthesized artificially, FC-13I1 is expensive and the cost of use is extremely high, which is not conducive to widely used

[0010] 5) The invention patent with publication number CN1780892A uses a mixture of HFC-161, HFC-32 and HFC-125 to replace HCFC-22, but this substitute cannot use HCFC-22 compressors and lubricating oil, and must use R407C or R410A Compressors and ester oils have high replacement costs and are not suitable for direct replacement in HCFC-22 systems

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