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A mixed refrigerant and air conditioning system

A technology for mixing refrigerants and air conditioning systems, used in transportation and packaging, air handling equipment, heating/cooling equipment, etc. , Solve the effect of poor thermal performance

Active Publication Date: 2021-09-07
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the defects that the refrigerants in the prior art cannot guarantee low GWP value and high thermal performance at the same time, so as to provide a mixed refrigerant and air conditioning system

Method used

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  • A mixed refrigerant and air conditioning system
  • A mixed refrigerant and air conditioning system
  • A mixed refrigerant and air conditioning system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] Example 1, the three components of ammonia (R717), difluoromethane (R32), and trans-1-chloro-3,3,3-trifluoropropene (R1233zd(E)) were prepared according to the The mass ratio of 76:12:12 is physically mixed to obtain an environmentally friendly mixed working fluid.

[0056] That is, in the state of liquid phase at normal temperature and pressure, the ammonia (R717), the difluoromethane (R32) and the trans-1-chloro-3,3,3-trifluoropropene (R1233zd(E) ) in a mass ratio of 76:12:12.

Embodiment 2

[0057] Example 2, the three components of ammonia (R717), difluoromethane (R32), and trans-1-chloro-3,3,3-trifluoropropene (R1233zd(E)) are prepared according to the The mass ratio of 76:16:8 is physically mixed to obtain an environmentally friendly mixed working fluid.

[0058] That is, in the state of liquid phase at normal temperature and pressure, the ammonia (R717), the difluoromethane (R32) and the trans-1-chloro-3,3,3-trifluoropropene (R1233zd(E) ) The mass ratio is 76:16:8.

Embodiment 3

[0059] Example 3, the three components of ammonia (R717), difluoromethane (R32), and trans-1-chloro-3,3,3-trifluoropropene (R1233zd(E)) were prepared according to the The mass ratio of 76:20:4 is physically mixed to obtain an environmentally friendly mixed working fluid.

[0060] That is, in the state of liquid phase at normal temperature and pressure, the ammonia (R717), the difluoromethane (R32) and the trans-1-chloro-3,3,3-trifluoropropene (R1233zd(E) ) The mass ratio is 76:20:4.

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Abstract

The invention provides a mixed refrigerant and an air-conditioning system, the mixed refrigerant includes a first component, a second component and a third component, wherein: the first component is ammonia, and the second component is difluoromethane, and the third component is trans-1-chloro-3,3,3-trifluoropropene or 1,1,1-trifluoroethane. The mixed refrigerant of the present invention has low GWP and good thermal performance, the GWP value can be lower than 150, the COP of the mixed refrigerant can be much higher than that of R134a, and the volumetric cooling capacity can be much higher than that of R134a, which effectively solves the problem of other alternatives to R134a refrigeration It solves the problem of high GWP of the refrigerant, and also solves the problem of poor thermodynamic performance of other refrigerants. Moreover, it can make the slip temperature of the mixed working fluid less than 0.5°C, and eliminate the adverse effects caused by temperature slip. Among them, the secondary circuit automotive air-conditioning system can reduce or even eliminate the safety hazards caused by flammable refrigerants.

Description

technical field [0001] The invention belongs to the technical field of refrigeration, and in particular relates to a mixed refrigerant and an air-conditioning system. Background technique [0002] 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. In the F-gas Act of the European Union, the GWP of the refrigerant used in the automotive air-conditioning system is required to be less than 150, but a perfect replacement for R134a (GWP=1430) has not yet been found, and due to the characteristics of R134a itself, the use of R134a The heating capacity per unit volume of the automotive air-conditioning heat pump system is low, which makes the compressor volume larger (larger displacement), and finally make...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K5/04B60H1/00
CPCB60H1/00321C09K5/044C09K2205/122C09K2205/126C09K2205/132
Inventor 黄宇杰于艳翠赵桓雷佩玉
Owner GREE ELECTRIC APPLIANCES INC
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