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Refrigerant, and compressor and air conditioning device or heat pump unit using same

A technology for heat pump devices and air conditioners, applied in the field of compressors and air conditioners or heat pump devices, can solve problems such as high global warming potential, high ozone depletion potential, and large greenhouse effect, and achieve solutions to ozone layer destruction, good energy efficiency, The effect of solving the greenhouse effect

Inactive Publication Date: 2019-10-22
GREE ELECTRIC APPLIANCES INC OF ZHUHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Due to the high global warming potential (GWP) value and high ozone depletion potential (ODP) value of the refrigerant used in the refrigeration equipment in the prior art, resulting in a greater impact on the greenhouse effect and serious technical problems such as ozone destruction, Therefore the present invention researches and designs a kind of refrigerant, the compressor that uses it and air conditioner or heat pump device

Method used

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  • Refrigerant, and compressor and air conditioning device or heat pump unit using same
  • Refrigerant, and compressor and air conditioning device or heat pump unit using same
  • Refrigerant, and compressor and air conditioning device or heat pump unit using same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0049] Embodiment 1, such as figure 1 As shown, preferably,

[0050] Including a compressor 7, a condenser 5 and an evaporator 6, the compressor 7, the condenser 5 and the evaporator 6 are sequentially connected in series in the refrigeration cycle line 100, the compressor 7 The refrigerant is communicated into the condenser 5 through the exhaust port, the refrigerant at the outlet of the condenser 5 is communicated into the evaporator 6, and the refrigerant at the outlet of the evaporator 6 is communicated into the compressor 7 in. This is the preferred structural form of the flooded evaporator of the present invention, and coolers with a cooling capacity higher than 700kW generally use a flooded evaporator, in which the refrigerant in the evaporator and condenser surrounds coils or other conduits to cool the medium (i.e. the refrigerant is on the shell side). A flooded evaporator requires a higher refrigerant load, but produces a closer approach temperature and is more ef...

no. 2 approach

[0056] The second embodiment, such as figure 2 As shown, preferably,

[0057] Including a compressor 7, a condenser 5 and an evaporator 6, the compressor 7, the condenser 5 and the evaporator 6 are sequentially connected in series in the refrigeration cycle line 100, the compressor 7 The refrigerant enters the refrigeration cycle pipeline 100 through the exhaust port, and then the refrigeration cycle pipeline 100 penetrates into the condenser 5, and then the refrigeration cycle pipeline 100 passes through the condenser 5 out and penetrate into the evaporator 6 , and then the refrigeration cycle pipeline 100 penetrates out of the evaporator 6 and enters into the compressor 7 .

[0058] Preferably,

[0059] The condenser 5 is fed with a first cooling medium, and the first cooling medium exchanges heat with the refrigerant in the refrigeration cycle line in the condenser 5, and the condenser 5 includes a second a cooling medium inlet 1 and a first cooling medium outlet 2; and...

Embodiment

[0068] Table 1 shows the performance of R1318myy(Z) compared to R245fa under conditions typical for centrifugal coolers. In Table 1, Q_v is the volume capacity. It can be seen from Table 1 that the Q_v value of the new refrigerant R1318myy(Z) of the present invention is greater than the Q_v value of R245fa, so the new refrigerant R1318myy(Z) of the present invention can Compared with R245fa, it improves compression efficiency and refrigeration cycle efficiency.

[0069] Table 1

[0070]

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PUM

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Abstract

The invention provides a refrigerant, and a compressor and an air conditioning device or heat pump unit using the same. The refrigerant at least comprises the compound octafluorodibutene. According tothe invention, octafluorodibutene, preferably 1,1,1,2,3,4,4,4-octafluoro-2-butene (CF3CF=CFCF3) (i.e. R1318myy(Z)), is used as the refrigerant; since octafluorodibutene has a stable chemical bond structure, the refrigerant shows stable chemical properties, is not prone to chemical changes, generates little heat, does not destroy ozone, and is an environmentally friendly refrigerant that has low GWP, zero ODP and non-flammability and effectively solves the problems of greenhouse effect and the like caused by other environmentally unfriendly refrigerants and the problem of ozone depletion; andthe R1318myy(Z) can provide good cooling performance in a cooler, namely, good energy efficiency and reasonable cooling capacity.

Description

technical field [0001] The invention belongs to the technical field of refrigeration, and in particular relates to a refrigerant, a compressor and an air conditioning device or a heat pump device using the same. Background technique [0002] With the increasingly serious trend of environmental protection, for the "greenhouse effect" of HFCs, the amendments to the Montreal Protocol require 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 order to be used as a direct replacement in existing equipment, the replacement must have properties similar or consistent with the original working fluid for which the equipment was designed, especially in finding a replacement for R245fa for use in chiller applications, it is desirable to consider Saturated fluorocarbons. Unsaturated fluorocarbons have zero ODP and significantly lower GWP than existing r...

Claims

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Application Information

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IPC IPC(8): C09K5/04F25B41/00F25B41/40
CPCC09K5/045F25B41/00C09K2205/126C09K2205/22C09K2205/40Y02P20/10
Inventor 雷佩玉赵桓于艳翠梁尤轩黄宇杰
Owner GREE ELECTRIC APPLIANCES INC OF ZHUHAI
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