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Heat transfer medium, and heat transfer medium composition suitable for applications in coolers

A heat transfer medium and composition technology, applied in the directions of lubricating compositions, heat exchange materials, chemical instruments and methods, etc., can solve the problems of small temperature and temperature glide of heat transfer medium, and achieve the effect of simplifying system design

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

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Problems solved by technology

[0003] In view of this, the present invention provides a kind of heat transfer medium, this heat transfer medium has low GWP, ODP is 0, possesses good thermodynamic performance simultaneously, while effectively solving the problems such as the greenhouse effect that R134a heat transfe

Method used

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  • Heat transfer medium, and heat transfer medium composition suitable for applications in coolers
  • Heat transfer medium, and heat transfer medium composition suitable for applications in coolers
  • Heat transfer medium, and heat transfer medium composition suitable for applications in coolers

Examples

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preparation example Construction

[0022] The preparation method of the heat transfer medium of the present invention is as follows: the first step: select one material respectively from the first, second and third components provided by the technical solution of the present invention to combine, wherein: the first component The substances provided are 1,1,1,2-tetrafluoroethane (R134a), 1,1,1,2,2-pentafluoroethane (R125), 1,1,1,2,3,3, One of 3-heptafluoropropane (R227ea) and trifluoroiodomethane (R13I1); the second component provides substances such as 1,1-difluoroethane (R152a), 2,3,3,3-tetrafluoropropene (R1234yf) and trans-1,3,3,3-tetrafluoropropene (R1234ze(E)); The substances provided by the third component are fluoroethane (R161), cyclopropane (RC270), dimethyl ether ( RE170) and isobutane (R600a). The substances provided by the first component are all non-flammable substances, and the substances provided by other components are A2 flammable and weakly flammable A2L. By controlling the mass percentage of...

Embodiment 1

[0029] Example 1, three components of 1,1,1,2-tetrafluoroethane (R134a), 1,1-difluoroethane (R152a) and isobutane (R600a) were mixed under normal temperature and pressure liquid phase Physically mix according to the mass percentage of 36:44:20, and use it as a heat transfer medium after mixing evenly.

Embodiment 2

[0030]Example 2, three components of 1,1,1,2-tetrafluoroethane (R134a), 1,1-difluoroethane (R152a) and dimethyl ether (RE170) were mixed under normal temperature and pressure liquid phase Perform physical mixing according to the mass percentage of 12:72:16, and use it as a heat transfer medium after mixing evenly.

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Abstract

The invention provides a heat transfer medium comprising a first component, a second component and a third component; the first component is one of 1, 1, 1, 2-tetrafluoroethane (R134a), 1, 1, 1, 2, 2-pentafluoroethane (R125), 1, 1, 1, 2, 3, 3, 3-heptafluoropropane (R227ea) and trifluoroiodomethane (R13I1); the second component is one of 1, 1-difluoroethane (R152a), 2, 3, 3, 3-tetrafluoropropene (R1234yf) and trans 1, 3, 3, 3-tetrafluoropropene (R1234ze (E)); the third component is one of fluoroethane (R161), cyclopropane (RC270), dimethyl ether (RE170) and isobutane (R600a); the heat transfermedium has the environment-friendly characteristics of low GWP and zero ODP, obvious environmental protection advantages and good thermal performance, can replace R134a heat transfer medium to be applied to coolers, especially centrifugal coolers, and can be well matched with existing equipment without system redesigning.

Description

technical field [0001] The invention relates to a refrigeration low temperature technology, in particular to a heat transfer medium and a composition suitable for a cooler. Background technique [0002] Chillers are refrigeration machines that cool water, other heat transfer fluids, or process fluids by vapor compression (modified reverse Rankine), absorption, or other thermodynamic cycles. Their most common use is to air condition large offices, commercial, medical, entertainment, high-rise residential and similar buildings or complexes in a central system. Both large central and interconnected plants (often with multiple chillers each) are common for shopping malls, universities, medical and office spaces, military facilities, and district cooling systems. With the increasingly serious trend of environmental protection, for the "greenhouse effect" of HFCs, the Montreal Protocol Amendment requires a heat transfer medium that does not destroy the ozone layer and has a lower...

Claims

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Application Information

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IPC IPC(8): C09K5/04C10M171/00
CPCC09K5/044C09K2205/11C09K2205/12C09K2205/122C09K2205/126C09K2205/34C09K2205/40C10M171/008
Inventor 雷佩玉赵桓于艳翠梁尤轩黄宇杰
Owner GREE ELECTRIC APPLIANCES INC
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