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A kind of mixed refrigerant and its preparation method and application, automobile air-conditioning system

A technology for automotive air conditioning systems and mixed refrigerants, applied in heating/cooling equipment, chemical instruments and methods, vehicle components, etc., can solve problems such as high GWP value and low COP, and achieve environmental performance, good thermal performance, and environmental performance. Good, simple craftsmanship

Active Publication Date: 2021-07-20
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] One of the purposes of the present invention is to propose a mixed refrigerant, its preparation method and application, and an automotive air-conditioning system, which solve the technical problems of high GWP value and low COP of R134a refrigerant in the prior art

Method used

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  • A kind of mixed refrigerant and its preparation method and application, automobile air-conditioning system
  • A kind of mixed refrigerant and its preparation method and application, automobile air-conditioning system
  • A kind of mixed refrigerant and its preparation method and application, automobile air-conditioning system

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preparation example Construction

[0033] The preparation method of the mixed refrigerant of the present embodiment comprises the following steps:

[0034] S1: Take the first component, the second component and the third component according to the mass ratio, wherein the first component is propane, the second component is difluoromethane, and the third component is ammonia and fluoroethane and one of acrylic. Preferably, the mass percentage of the first component is 25-66%, the mass percentage of the second component is 4-21%, the mass percentage of the third component is 21-70%, and the first component, the second The sum of the mass percentages of the component and the third component is 100%. More preferably, the mass percentage of the first component is 66%, the mass percentage of the second component is 5%, and the mass percentage of the third component is 29%.

[0035]S2: Physically mix the first component, the second component and the third component under normal temperature, high pressure and liquid s...

Embodiment 1

[0047] The mixed refrigerant of this embodiment includes propane (R290), difluoromethane (R32), ammonia (R717) three components, and the mixed refrigerant of this embodiment is propane (R290), difluoromethane (R32) The three components of ammonia (R717) are physically mixed at normal temperature, high pressure and liquid phase according to the ratio of 66:5:29 in mass percentage.

Embodiment 2

[0049] The mixed refrigerant of this embodiment includes propane (R290), difluoromethane (R32), ammonia (R717) three components, and the mixed refrigerant of this embodiment is propane (R290), difluoromethane (R32) The three components of ammonia (R717) are physically mixed at normal temperature, high pressure and liquid phase according to the ratio of 62:13:25 in mass percentage.

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Abstract

The invention discloses a mixed refrigerant, its preparation method and application, and an automobile air-conditioning system, relates to the technical field of air-conditioning, and solves the technical problems of high GWP value and low COP of R134a refrigerant in the prior art. The mixed refrigerant of the present invention includes a first component, a second component and a third component, wherein the first component is propane, the second component is difluoromethane, and the third component is ammonia, fluoroethyl One of alkane and propylene. The mixed refrigerant of the present invention has a COP superior to that of R134a refrigerant while having a low GWP value. Specifically, the GWP value of the mixed refrigerant of the present invention is lower than 150, which meets the requirements of environmental protection regulations in various regions of the world. Under proper proportioning, the thermodynamic performance is not only better than that of R134a refrigerant, but also the glide temperature of the mixed refrigerant of the present invention is less than 1°C, the adverse effects of temperature glide can be ruled out. That is, the mixed refrigerant of the present invention has good environmental protection performance and thermal performance, which is better than that of R134a refrigerant.

Description

technical field [0001] The invention relates to the technical field of air conditioning, in particular to a mixed refrigerant, a preparation method and application of the mixed refrigerant, and an automobile air-conditioning system using the mixed refrigerant. Background technique [0002] With the increasingly serious trend of environmental protection, regarding the "greenhouse effect" of refrigerant hydrofluorocarbons (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 value refrigeration agent, and is effectively used in air conditioning systems. In the EU F-gas Act (F-gas) aimed at reducing greenhouse gas emissions, the GWP value of refrigerants used in automotive air-conditioning systems is required to be less than 150. However, a relatively perfect replacement for R134a refrigerant (R134a refrigerant belongs to hydrofluorocarbon refrigerant, and the GWP of R134a ...

Claims

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Application Information

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IPC IPC(8): C09K5/04B60H1/32
CPCB60H1/3228C09K5/041C09K5/042C09K5/045C09K2205/12C09K2205/122C09K2205/132
Inventor 黄宇杰于艳翠赵桓
Owner GREE ELECTRIC APPLIANCES INC
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