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Refrigerant and preparation method thereof, stepped cooling and dehumidifying system, and electrical equipment

A step-down cooling and refrigerant technology, applied in refrigerators, air-conditioning systems, refrigeration and liquefaction, etc., can solve problems such as poor environmental performance and low thermodynamic performance

Active Publication Date: 2021-10-29
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the technical problem of poor environmental protection performance of R134a in the prior art, the primary purpose of the present invention is to propose a new type of refrigerant used in a step-wise cooling and dehumidification system, from multiple dimensions of environmental protection and thermal performance of the refrigerant. Carefully screened to form an alternative refrigerant with lower GWP and equivalent thermodynamic performance compared with R134a, and proposed the preparation method of the refrigerant, the step-down cooling and dehumidification system and electrical equipment using the refrigerant

Method used

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  • Refrigerant and preparation method thereof, stepped cooling and dehumidifying system, and electrical equipment
  • Refrigerant and preparation method thereof, stepped cooling and dehumidifying system, and electrical equipment
  • Refrigerant and preparation method thereof, stepped cooling and dehumidifying system, and electrical equipment

Examples

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Effect test

Embodiment 1

[0031] The three components of fluoromethane (R41), propane (R290), and trans-1,3,3,3-tetrafluoropropene (R1234ze(E)) are mixed in a liquid phase at room temperature in a mass ratio of 5:55:40. Under physical mixing, a refrigerant used in the step-down temperature dehumidification system can be obtained.

Embodiment 2

[0033] The three components of fluoromethane (R41), propane (R290), and trans-1,3,3,3-tetrafluoropropene (R1234ze(E)) are mixed in a liquid phase at room temperature in a mass ratio of 10:30:60. Under physical mixing, a refrigerant used in the step-down temperature dehumidification system can be obtained.

Embodiment 3

[0035] The three components of fluoromethane (R41), propane (R290), and trans-1,3,3,3-tetrafluoropropene (R1234ze(E)) are mixed in a liquid phase at room temperature in a mass ratio of 10:25:65. Under physical mixing, a refrigerant used in the step-down temperature dehumidification system can be obtained.

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Abstract

The invention relates to the technical field of refrigerants, in particular to a refrigerant for a stepped cooling and dehumidification system, a preparation method of the refrigerant, the stepped cooling and dehumidification system, and electrical equipment. The refrigerant for the stepped cooling and dehumidifying system comprises a first component, a second component and a third component, wherein the first component is fluoromethane, the second component is propane or ammonia, and the third component is trans-1,3,3,3-tetrafluoropropene. Specifically, the refrigerant for the stepped cooling and dehumidifying system comprises the following components in percentage by mass: 5-10% of the first component, 25-55% of the second component and 40-65% of the third component. The refrigerant provided by the invention has the environment-friendly characteristic of low GWP, the system performance coefficient of the refrigerant is similar to the system performance coefficient of R134a, the refrigerating capacity per unit volume and COP of the refrigerant can be improved to a certain extent, and the refrigerant can better replace the refrigerant R134a for application to the stepped cooling and dehumidifying system.

Description

technical field [0001] The present application relates to the technical field of refrigerants, in particular, to a refrigerant used in a stepwise cooling and dehumidification system, a preparation method of the refrigerant, a stepwise cooling and dehumidification system, and electrical equipment. Background technique [0002] With the increasingly serious trend of environmental protection, for the "greenhouse effect" of HFCs, the amendment to the Montreal Protocol 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 refrigeration systems. middle. In the existing dehumidification system, most of the refrigerants used in the system are R134a (GWP=1430), but a perfect replacement for R134a has not yet been found, and due to the characteristics of R134a itself, the unit volume of the refrigeration system using R134a The lower cooling capacity makes the compressor larger (lar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K5/04F24F3/14F25B5/04
CPCC09K5/045F25B5/04F24F3/1405C09K2205/126C09K2205/12C09K2205/132C09K2205/40
Inventor 黄宇杰钟权赵桓吴敏庭王晓
Owner GREE ELECTRIC APPLIANCES INC
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