Refrigerant with low GWP value
A refrigerant and tetrafluoropropylene technology, which is applied in heat exchange materials, chemical instruments and methods, etc., can solve the problems of high slip temperature, difficulty in obtaining raw materials and high exhaust temperature, and achieve the effect of low GWP value.
Inactive Publication Date: 2011-11-02
SHANDONG DONGYUE CHEM
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AI Technical Summary
Problems solved by technology
Although these compositions are relatively low GWP compositions, they exist or the raw materials are difficult to obtain and the price is high, or the slip temperature is high, or the performance is low, or they cannot be directly filled and applied to the R22 system, or the exhaust temperature Higher deficiency
Method used
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Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0041] Example 1: A low GWP refrigerant composed of 30% propylene and 70% 2,3,3,3-tetrafluoropropene.
[0042] Preparation method: propylene and 2,3,3,3-tetrafluoropropene are physically mixed in the liquid phase according to the corresponding ratio as the refrigerant.
Embodiment 2
[0043] Example 2: A low GWP refrigerant composed of 40% propylene and 60% 2,3,3,3-tetrafluoropropene.
[0044] The preparation method is the same as in Example 1.
Embodiment 3
[0045] Example 3: A low-GWP refrigerant consisting of 50% propylene and 50% 2,3,3,3-tetrafluoropropene.
[0046] The preparation method is the same as in Example 1.
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Abstract
The invention relates to a refrigerant with a low GWP value, which can substitute R22 and be directly filled to such systems as air-conditioners / heat pumps, etc. The refrigerant comprises propylene and 2,3,3,3-tetrafluoropropene and is prepared by the method of physically mixing the components according to a corresponding proportion in a liquid phase state. The refrigerant provided in the invention completely meets requirements for environment-friendly substitution of R22 at home and abroad at present since the ODP value of the refrigerant is zero and the GWP value is very low; the pressure of the refrigerant is close to that of R22, compression ratio of the refrigerant is smaller than that of R22, exhaust temperature and unit refrigerating capacity of the refrigerant is superior to those of R22, and the properties of the refrigerant are beneficial for long-term operation of a compressor; application of the refrigerant provided in the invention needs no change to equipment or parts of existing R22 refrigerating air-conditioning systems, and the refrigerant is soluble in mineral oil and can be directly filled.
Description
Technical field [0001] The invention belongs to the field of refrigerants and relates to a refrigerant composition, and in particular to a refrigerant composition with low global warming potential (GWP) that is used to replace difluorochloromethane (R22) in refrigeration and air-conditioning systems such as household air conditioners / heat pumps. Refrigerant composition. Background technique [0002] The Conference of the Parties to the Montreal Protocol held in Montreal, Canada, in September 2007, reached a new resolution, which stipulated that developed countries will completely stop the production and consumption of non-raw material R22 in 2020, and developing countries including China will , to freeze the production and consumption of non-raw HCFCs (about 70% of which are R22) at the average level of 2009 and 2010 in 2013, and to complete the phase-out in 2030. Compared with the original phase-out schedule, the entire phase-out process has been greatly advanced. At prese...
Claims
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IPC IPC(8): C09K5/04
Inventor 王鑫李宗帅孙森徐强胡金正
Owner SHANDONG DONGYUE CHEM