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Car air-conditioning heat pump system adopting environment-friendly refrigerant

A technology for automotive air conditioners and heat pump systems, applied in heat pumps, refrigerators, refrigeration components, etc., can solve problems such as thermal performance not meeting requirements, failure to achieve cooling and heating effects, etc., to achieve good thermal performance and prevent heat exchange efficiency from decreasing Effect

Active Publication Date: 2020-02-28
GREE ELECTRIC APPLIANCES INC OF ZHUHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because refrigerants have the characteristics of balanced refrigerant physical properties, the research on refrigerants has become a hot spot for scholars and enterprises at home and abroad. Although some refrigerants in the prior art meet low GWP values, their thermal properties often cannot meet the requirements. Unable to achieve better cooling and heating effects

Method used

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  • Car air-conditioning heat pump system adopting environment-friendly refrigerant
  • Car air-conditioning heat pump system adopting environment-friendly refrigerant
  • Car air-conditioning heat pump system adopting environment-friendly refrigerant

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Example 1, four components of pentafluoroethane (R125), trifluoroiodomethane (R13I1), 1,1-difluoroethane (R152a) and dimethyl ether (RE170) were mixed in liquid phase at normal temperature and pressure Physical mixing is carried out according to the mass ratio of 4:56:16:24, and a refrigerant is obtained by mixing evenly.

Embodiment 2

[0035] Example 2, four kinds of pentafluoroethane (R125), trifluoroiodomethane (R13I1), trans-1,3,3,3-tetrafluoropropene (R1234ze(E)) and dimethyl ether (RE170) The components are physically mixed at a mass ratio of 4:60:8:28 in a liquid phase at normal temperature and pressure, and mixed uniformly to obtain a refrigerant.

Embodiment 3

[0036] Example 3, four kinds of pentafluoroethane (R125), trifluoroiodomethane (R13I1), trans-1,3,3,3-tetrafluoropropene (R1234ze(E)) and dimethyl ether (RE170) The components are physically mixed in a liquid phase at normal temperature and pressure at a mass ratio of 4:4:4:88, and mixed uniformly to obtain a refrigerant.

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Abstract

The invention provides a car air-conditioning heat pump system adopting an environment-friendly refrigerant. The car air-conditioning heat pump system further comprises a compressor, an indoor side heat exchanger, a throttle valve and an outdoor side heat exchanger which are sequentially connected to form a closed loop, and the environment-friendly refrigerant adopted by the car air-conditioning heat pump system is prepared from four components in percentage by mass: 4%-8% of the first component, 4%-80% of the second component, 4%-88% of the third component and 4%-88% of the fourth component.GWP of the adopted refrigerant is less than or equal to 150, environment-friendly performance is good, and requirements of environment-friendly regulations in all global regions are met. Thermal performance of the car air-conditioning heat pump system is equivalent to or more superior to a refrigeration system heat pump system using R134a, and thus the car air-conditioning heat pump system adopting the environment-friendly refrigerant is used for replacing a car air-conditioning heat pump system adopting an R134a refrigerant.

Description

technical field [0001] The invention relates to a refrigeration technology, in particular to an automobile air-conditioning heat pump system using an environmentally friendly refrigerant. Background technique [0002] Because 1,1,1,2-tetrafluoroethane (R134a) is non-toxic, non-flammable, non-corrosive, and has good material compatibility, it is widely used in automotive air conditioners and other refrigeration systems. However, due to its high greenhouse effect potential value (GWP value) (up to 1300), according to the requirements of the fluorinated greenhouse gas (F-gas) control regulations passed by the European Union: from January 1, 2011, the European Union will ban Newly produced automotive air conditioners use refrigerants with a GWP value greater than 150; during the six years from January 1, 2011 to January 1, 2017, in-use automotive air conditioners will gradually phase out refrigerants with a GWP value greater than 150; From January 1, 2017, all automotive air co...

Claims

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Application Information

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IPC IPC(8): B60H1/00B60H1/32C09K5/04F25B30/02F25B41/00F25B41/30
CPCB60H1/00321B60H1/00485B60H1/3204C09K5/04F25B30/02F25B41/00C09K2205/122C09K2205/112C09K2205/12C09K2205/126C09K2205/11Y02T10/88
Inventor 黄宇杰于艳翠赵桓雷佩玉梁尤轩
Owner GREE ELECTRIC APPLIANCES INC OF ZHUHAI
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