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CMR-05 type ternary non-azeotropy environmental protective refrigerant

A refrigerant, non-azeotropic technology, applied in heat exchange materials, chemical instruments and methods, etc., can solve the problems of production process, strict control requirements, combustion or explosion, large greenhouse effect, etc., and achieve excellent thermophysical properties, The effect of good compatibility

Inactive Publication Date: 2007-07-25
黄毓虾
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The R134a replacement route requires the modification and replacement of the refrigeration cycle system and its main components (including compressors), lubricating oil, dryers, etc., which cannot be directly used, which will undoubtedly bring additional costs to the refrigeration industry
In addition, whether the R134a replacement route is for compressor manufacturers or refrigerator and freezer manufacturers, the production process and control requirements are too strict, and a little carelessness will leave serious hidden dangers. In addition, R134a itself has a large greenhouse effect, so it is not optimal. final alternative route
[0006] R600a belongs to class A3 substances, flammable, explosive, and poor safety, when the content in the air is 1.8% - When it is 8.4% (volume ratio), it will burn or explode if it encounters a spark

Method used

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  • CMR-05 type ternary non-azeotropy environmental protective refrigerant
  • CMR-05 type ternary non-azeotropy environmental protective refrigerant
  • CMR-05 type ternary non-azeotropy environmental protective refrigerant

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] CMR-05 type ternary non-azeotropic environmentally friendly refrigerant, by weight percentage, includes the following substances:

[0048] R152a 70%

[0049] R227ea 15%

[0050] R125 15%.

[0051] Component names and molecular formulas in the above-mentioned technical scheme are as follows:

[0052] R152a: chemical name: difluoroethane, chemical formula: CHF 2 CH 3 ;

[0053] R227ea: chemical name: heptafluoropropane, chemical formula: CF 3 -CHF-CF 3 ;

[0054] R125: chemical name: pentafluoroethane, chemical formula: CF 3 CHF 2 .

[0055] CAS number: R152a: 75-37-6, R227ea: 431-89-0, R125: 354-33-6.

[0056] The refrigerant of the present invention only needs to mix the three components R152a, R227ea and R125 uniformly according to the formula amount.

[0057] Table 1 shows the calculation data of the refrigerant in Example 1 in the medium-temperature refrigeration of automobile air conditioners.

Embodiment 2

[0059] CMR-05 type ternary non-azeotropic environmentally friendly refrigerant, by weight percentage, includes the following substances:

[0060] R152a 70%

[0061] R227ea 20%

[0062] R125 10%.

[0063] Component names and molecular formulas in the above-mentioned technical scheme are as follows:

[0064] R152a: chemical name: difluoroethane, chemical formula: CHF 2 CH 3 ;

[0065]R227ea: chemical name: heptafluoropropane, chemical formula: CF 3 -CHF-CF 3 ;

[0066] R125: chemical name: pentafluoroethane, chemical formula: CF 3 CHF 2 .

[0067] CAS number: R152a: 75-37-6, R227ea: 431-89-0, R125: 354-33-6.

[0068] The refrigerant of the present invention only needs to mix the three components R152a, R227ea and R125 uniformly according to the formula amount.

[0069] Table 2 shows the calculation data of the refrigerant of Example 2 in the medium-temperature refrigeration of automobile air conditioners.

Embodiment 3

[0071] CMR-05 type ternary non-azeotropic environmentally friendly refrigerant, by weight percentage, includes the following substances:

[0072] R152a 75%

[0073] R227ea 15%

[0074] R125 10%.

[0075] Component names and molecular formulas in the above-mentioned technical scheme are as follows:

[0076] R152a: chemical name: difluoroethane, chemical formula: CHF 2 CH 3 ;

[0077] R227ea: chemical name: heptafluoropropane, chemical formula: CF 3 -CHF-CF 3 ;

[0078] R125: chemical name: pentafluoroethane, chemical formula: CF 3 CHF 2 .

[0079] CAS number: R152a: 75-37-6, R227ea: 431-89-0, R125: 354-33-6.

[0080] The refrigerant of the present invention only needs to mix the three components R152a, R227ea and R125 uniformly according to the formula amount.

[0081] The calculation data of the refrigerant of Example 3 in the medium temperature refrigeration of automobile air conditioners are shown in Table 3.

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PUM

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Abstract

This invention discloses environmentally friendly CMR-05 ternary non-azeotropic refrigerant with excellent thermal and physical properties. The refrigerant comprises: R152a 60-75 wt. %, R227ea 10-20 wt. %, and R125 10-25 wt. %. The refrigerant is a ternary near-azeotropic mixture, and is colorless, odorless and nontoxic. At the same evaporation or condensation temperature, the refrigeration parameter of the refrigerant is 1-8% higher than that of R134a. The refrigerant has similar molecular polarity to R12, thus has good low temperature miscibility and high temperature lubrication with mineral oil, alkyl benzene oil, cycloalkyl oil, and POE oil (ester oil). Besdies, the refrigerant has good compatibility with metal and nonmetal materials.

Description

technical field [0001] The invention belongs to the field of refrigerants, and in particular relates to a CMR-05 type ternary non-azeotropic environment-friendly refrigerant which is composed of several working fluids and has excellent thermophysical properties. Background technique [0002] At present, energy shortage and environmental pollution have become two major problems faced by human beings. Energy saving and mitigation of global warming will be the central issues of scientific and technological development in the 21st century. The refrigeration industry, which is closely related to people's daily life, is facing severe challenges. Due to the impact of some refrigerants in use on the depletion of the atmospheric ozone layer and the greenhouse effect, and the refrigeration system consumes a large amount of energy every year, it has become the frontier of today's engineering thermophysics to seek ideal CFCs replacement refrigerants and reduce the energy consumption of ...

Claims

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Application Information

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IPC IPC(8): C09K5/04
Inventor 黄毓虾
Owner 黄毓虾
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