An environmentally friendly refrigeration composition

A composition and environment-friendly technology, applied in the direction of chemical instruments and methods, heat exchange materials, etc., can solve the problems of small cooling capacity, reduced cooling capacity, high replacement cost, etc., to improve cooling capacity and energy efficiency ratio, and reduce charging energy saving effect

Active Publication Date: 2020-05-01
ZHEJIANG RES INST OF CHEM IND CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these solutions have their own advantages and disadvantages: the use of CO 2 Good environmental performance and non-flammable, but the system pressure is high, energy efficiency is low, the system needs to be redesigned, and the replacement cost is high; using HFC-152a has high energy efficiency and low refrigerant price, but its flammability is strong, and secondary circuits need to be added, etc. High replacement cost; although the use of HFO-1234yf and its composition has low flammability and less system modification, it has relatively low energy efficiency, small cooling capacity and high cost of refrigerant
[0031] In addition, R404A has been widely used as a substitute for R502, but there is no special research on its replacement at home and abroad. Only Chinese patent CN1544569A clearly proposes to replace R502 with a combination of HFC-161, HFC-125 and HFC-143a and R404A, but the composition has defects such as high GWP and decreased cooling capacity

Method used

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  • An environmentally friendly refrigeration composition
  • An environmentally friendly refrigeration composition
  • An environmentally friendly refrigeration composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0075] Example 1: HFO-1234ze(E), HFE-143a and HFC-32 were physically mixed in a liquid phase at a mass percentage of 90:5:5.

Embodiment 2

[0076] Example 2: Physically mix HFO-1234ze(E), HFE-143a and HFC-32 in a liquid phase at a mass percentage of 89:1:10.

Embodiment 3

[0077] Example 3: Physically mix HFO-1234ze(E), HFE-143a and HFC-32 in a liquid phase at a mass percentage of 80:10:10.

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Abstract

The invention discloses an environment-friendly refrigeration composition, which includes HFO-1234ze (E) (30%-90%), HFE-143a (1%-15%) and HFC-32 (5%-60%). The refrigeration composition provided by the invention has the advantages of good refrigeration performance, low flammability and low replacement cost, and can replace HFC-134a, HCFC-22 and R404A.

Description

technical field [0001] The invention relates to a refrigeration composition, in particular to an environment-friendly refrigeration composition capable of replacing HFC-134a, HCFC-22 and R404A. Background technique [0002] 1,1,1,2-Tetrafluoroethane (HFC-134a), as a substitute for CFC-12, has been widely used for its excellent performance, but because of its high greenhouse effect value of 1430, it is " Kyoto Protocol "listed as one of the first high-GWP value refrigerants phased out. Most of the HFC-134a used in small refrigeration equipment has been replaced by HC-600a, and the replacement of HFC-134a used in industrial and commercial refrigeration and automotive air-conditioning has become a research hotspot and an urgent problem to be solved around the world. [0003] At present, the research direction of HFC-134a replacement in the international community is mainly: carbon dioxide (CO 2 ), 1,1-difluoroethane (HFC-152a), 2,3,3,3-tetrafluoropropene (HFO-1234yf), etc. H...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K5/04
Inventor 郭智恺
Owner ZHEJIANG RES INST OF CHEM IND CO LTD
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