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CMR-04 type ternary non-azeotropic environmental protection refrigerant

A 1. CMR-04, non-azeotropic technology, applied in the direction of heat exchange materials, chemical instruments and methods, etc., can solve problems such as combustion or explosion, production technology, strict control requirements, explosives, etc., and achieve good compatibility Sex, the effect of excellent thermophysical properties

Inactive Publication Date: 2007-08-15
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, which are flammable, explosive, and poor in safety. When the content in air is 1.8% to 8.4% (volume ratio), it will burn or explode in case of sparks

Method used

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  • CMR-04 type ternary non-azeotropic environmental protection refrigerant
  • CMR-04 type ternary non-azeotropic environmental protection refrigerant

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] CMR-04 type ternary non-azeotropic environmentally friendly refrigerant, by weight percentage, includes the following substances:

[0050] R152a 50%

[0051] R227ea 15%

[0052] R22 35%.

[0053] Component names and molecular formulas in the above-mentioned technical scheme are as follows:

[0054] R152a: chemical name: difluoroethane, chemical formula: CHF 2 CH 3 ;

[0055] R227ea: chemical name: heptafluoropropane, chemical formula: CF 3 -CHF-CF 3 ;

[0056] R22: chemical name: difluorochloromethane, chemical formula: CHClF 2 .

[0057] CAS number: R152a: 75-37-6, R227ea: 431-89-0, R22: 75-45-6.

[0058] The refrigerant of the present invention only needs to mix the three components R152a, R227ea and R22 uniformly according to the formula amount.

[0059] Table 1 shows the calculation data of the refrigerant in Example 1 in the medium-temperature refrigeration of automobile air conditioners.

Embodiment 2

[0061] CMR-04 type ternary non-azeotropic environmentally friendly refrigerant, by weight percentage, includes the following substances:

[0062] R152a 50%

[0063] R227ea 20%

[0064] R22 30%.

[0065] Component names and molecular formulas in the above-mentioned technical scheme are as follows:

[0066] R152a: chemical name: difluoroethane, chemical formula: CHF 2 CH 3 ;

[0067] R227ea: chemical name: heptafluoropropane, chemical formula: CF 3 -CHF-CF 3 ;

[0068]R22: chemical name: difluorochloromethane, chemical formula: CHClF 2 .

[0069] CAS number: R152a: 75-37-6, R227ea: 431-89-0, R22: 75-45-6.

[0070] The refrigerant of the present invention only needs to mix the three components R152a, R227ea and R22 uniformly according to the formula amount.

[0071] Table 2 shows the calculation data of the refrigerant of Example 2 in the medium-temperature refrigeration of automobile air conditioners.

Embodiment 3

[0073] CMR-04 type ternary non-azeotropic environmentally friendly refrigerant, by weight percentage, includes the following substances:

[0074] R152a 55%

[0075] R227ea 15%

[0076] R22 30%.

[0077] Component names and molecular formulas in the above-mentioned technical scheme are as follows:

[0078] R152a: chemical name: difluoroethane, chemical formula: CHF 2 CH 3 ;

[0079] R227ea: chemical name: heptafluoropropane, chemical formula: CF 3 -CHF-CF 3 ;

[0080] R22: chemical name: difluorochloromethane, chemical formula: CHClF 2 .

[0081] CAS number: R152a: 75-37-6, R227ea: 431-89-0, R22: 75-45-6.

[0082] The refrigerant of the present invention only needs to mix the three components R152a, R227ea and R22 uniformly according to the formula amount.

[0083] 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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Abstract

The invention discloses a thermo-physical property CMR-O4 type ternary non-azeotropic environment-friendly coolant, which is characterized by the following: this invention includes with mass percent at 45%-60% R152a, 10%-20% R227ea and 30%-40% R22; the coolant of this invention is a ternary near azeotropic mixture without colour, smell and toxic and possesses good thermo-physical property; the good effect is: (1) the cooling performance coefficient can increase 1-8% compared to R134a under the same evaporating temperature and condensing temperature; (2) the molecular polarity of coolant is like R12 and possesses good low-temperature intermiscibility and high-temperature oiliness as mineral oil, alkyl benzene oil, cycloalkyl oil and POE oil (ester oils); (3) it possesses good compatibility with metal and non-metal material.

Description

technical field [0001] The invention belongs to the field of refrigerants, and in particular relates to a CMR-04 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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