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Refrigerant composition

A refrigerant and composition technology, applied in the direction of heat exchange materials, chemical instruments and methods, etc., can solve the problems of poor compatibility, large slip temperature, and strong flammability of automotive air-conditioning systems, and achieve low cost of replacement, The effect of small slip temperature and low GWP value

Inactive Publication Date: 2010-03-17
SHANDONG DONGYUE CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with HFC-134a, these mixtures have lower GWP values, but these mixtures either have strong flammability, or have a large slip temperature, or are not compatible with existing automotive air conditioning systems, or have high efficiency. Low, or expensive and other issues

Method used

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  • Refrigerant composition
  • Refrigerant composition

Examples

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Embodiment 1

[0038] Example 1: 50% by mass of 2,3,3,3-tetrafluoropropene and 50% by mass of 1,1-difluoroethane are physically mixed in a liquid phase and used as a refrigerant.

Embodiment 2

[0039] Example 2: 60% by mass of 2,3,3,3-tetrafluoropropene and 40% by mass of 1,1-difluoroethane are physically mixed in the liquid phase and used as a refrigerant.

Embodiment 3

[0040] Example 3: 2,3,3,3-tetrafluoropropene with a mass percentage of 75% and 1,1-difluoroethane with a mass percentage of 25% were physically mixed in a liquid phase and used as a refrigerant.

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Abstract

The invention provides a refrigerant applied to an automobile air conditioner for replacing HFC-134a. The refrigerant contains 2,3,3,3-tetrafluoropropylene (HFO-1234yf) and 1,1-difluoroethane (HFC-152a) or isobutane (HC-600a); a preparation method is achieved by physically mixing various components according to corresponding mixture ratio under liquid phase. The refrigerant is equivalent to the physical property of the HFC-134a, is compatible with pipelines and components of the prior HFC-134a system, has safe use, higher refrigeration efficiency and quite low slipping temperature, is free from damaging an atmospheric ozone layer and has quite low GPW value and shunt replacement fee. The refrigerant can be used as a replaced refrigerant of the HFC-134a of the automobile air conditioner.

Description

technical field [0001] The invention belongs to the field of refrigerants and relates to a refrigerant composition, in particular to a refrigerant composition used in automobile air-conditioning systems to replace 1,1,1,2-tetrafluoroethane (HFC-134a). Background technique [0002] 1,1,1,2-tetrafluoroethane (HFC-134a) is widely used in automotive air-conditioning and other refrigeration systems, but due to its high greenhouse effect potential (GWP value), it is CO 2 1430 times of that, and the operating conditions of automobile air conditioners are complex and changeable, and the leakage of refrigerant is large, so the contribution to global warming is relatively large. Therefore, automobile air conditioners have become the first batch of refrigeration air conditioners to ban high GWP value refrigerants One of the devices. According to the requirements of the fluorine-containing greenhouse gas (F-gas) control regulations passed by the European Union: from January 1, 2011, th...

Claims

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Application Information

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IPC IPC(8): C09K5/04
CPCC09K5/045C09K2205/12C09K2205/22C09K2205/126
Inventor 王鑫庞峰孙森胡金正
Owner SHANDONG DONGYUE CHEM
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