Unlock instant, AI-driven research and patent intelligence for your innovation.

Mixed working medium suitable for scroll compressor, and car air conditioning system

A scroll compressor, mixed working fluid technology, applied in vehicle parts, transportation and packaging, air handling equipment, etc., can solve the problems that have not been found yet, achieve good thermal performance, easy to use, and prevent the reduction of heat exchange efficiency. Effect

Active Publication Date: 2019-12-31
GREE ELECTRIC APPLIANCES INC
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current technical means often start from the perspective of single working fluid and mixed working fluid, looking for a mixed working fluid that can be directly applied to the automotive air conditioning system, but a more perfect working fluid that can replace R134a has not yet been found

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Mixed working medium suitable for scroll compressor, and car air conditioning system
  • Mixed working medium suitable for scroll compressor, and car air conditioning system
  • Mixed working medium suitable for scroll compressor, and car air conditioning system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Example 1, three kinds of 1,1,1,2,3,3,3-heptafluoropropane (R227ea), 3,3,3-trifluoropropene (R1243zf) and 1,1-difluoroethane (R152a) The components are physically mixed at a mass percentage of 16:80:4 in a liquid phase at normal temperature and pressure, and mixed uniformly to obtain a mixed working medium.

Embodiment 2

[0034] Example 2, 1,1,1,2,3,3,3-heptafluoropropane (R227ea), 3,3,3-trifluoropropene (R1243zf) and trans-1,3,3,3-tetrafluoropropene (R1234ze(E)) The three components are physically mixed in a liquid phase at normal temperature and pressure at a mass percentage of 16:80:4, and mixed uniformly to obtain a mixed working medium.

Embodiment 3

[0035] Example 3, 1,1,1,2,3,3,3-heptafluoropropane (R227ea), 3,3,3-trifluoropropene (R1243zf) and trans-1,3,3,3-tetrafluoropropene (R1234ze(E)) The three components are physically mixed in a liquid phase at normal temperature and pressure at a mass percentage of 16:48:36, and mixed uniformly to obtain a mixed working medium.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a mixed working medium suitable for a scroll compressor. The mixed working medium for the scroll compressor comprises a first component, a second component and a third component, wherein the first component is one of 1,1,1,2,3,3,3-heptafluoropropane (R227ea) and 1,1,1,2-tetrafluoroethane (R134a), the second component is 3,3,3-trifluoropropene (R1243zf), and the third component is one of 2,3,3,3-tetrafluoropropene (R1234yf), 1,1-difluoroethane (R152a) and trans 1,3,3,3-tetrafluoropropene (R1234ze (E)). The GWP of the adopted mixed working medium is smaller than or equal to 600, the ODP is 0, the mixed working medium has the obvious environment-friendly advantage, and due to the fact that the mixed working medium is a near azeotropic refrigerant, the problem that the refrigerant is refilled after leakage does not need to be considered. The scroll compressor adopting the mixed working medium does not need to change a device, a common R134a refrigerant can be replaced, and safe and environment-friendly work is achieved.

Description

technical field [0001] The invention relates to a refrigeration technology, in particular to a mixed working medium suitable for a scroll compressor and an automobile air-conditioning system. Background technique [0002] Currently, scroll compressors are used to compress refrigerants in air-conditioning systems of vehicles, and the commonly used refrigerant is R134a with a GWP of 1300 and an ODP of 0. With the increasingly serious trend of environmental protection, regarding the "greenhouse effect" of HFCs, the Montreal Protocol Amendment requires a refrigerant that does not destroy the ozone layer and has a lower GWP value to replace the current high-GWP refrigerant and be effectively used in air-conditioning systems middle. The current technical means often start from the perspective of single working fluid and mixed working fluid, looking for a mixed working fluid that can be directly applied to the automotive air-conditioning system, but a more perfect working fluid th...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C09K5/04B60H1/32
CPCB60H1/3204B60H2001/3257C09K5/045C09K2205/122C09K2205/126C09K2205/22C09K2205/32Y02T10/88
Inventor 雷佩玉赵桓于艳翠黄宇杰梁尤轩
Owner GREE ELECTRIC APPLIANCES INC