CN1162616A - Pollutionless refrigerant - Google Patents
Pollutionless refrigerant Download PDFInfo
- Publication number
- CN1162616A CN1162616A CN 96106541 CN96106541A CN1162616A CN 1162616 A CN1162616 A CN 1162616A CN 96106541 CN96106541 CN 96106541 CN 96106541 A CN96106541 A CN 96106541A CN 1162616 A CN1162616 A CN 1162616A
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- China
- Prior art keywords
- c2h4f2
- hfc
- refrigeration agent
- chlorodifluoronmethane
- additive
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
A green refrigerant as heat transfer medium when it varies from liquid to gas in refrigerating apparatus contains HFC-152a and HCFC-22; or HFC-152a, HCFC-22 and HFC-227ea or FC-1311; or HFC-152a, HCFC-22 and HFC-1341. It is a subboiling mixture with the advantages of no poison, good thermodynamic properties and basically not damaging ozonosphere, and can replace the existing CFC-12 refrigerant without changing the existing equipment and production line.
Description
The present invention relates to a kind of material of transferred heat, just a kind of by liquid state the material of transferred heat during to the gaseous state phase-state change, more specifically saying so is used for the refrigeration agent of refrigeration equipment (refrigerator, refrigerator-freezer) usefulness.
In existing technology,, mostly use Refrigerant 12 (CFC-12) for a long time as the employed refrigeration agent of products such as refrigerator, refrigerator-freezer.Found that CFC class material (Chlorofluorocarbons (CFCs)) had serious destruction to atmospheric ozone layer in 1974.Like this, caused international increasingly extensive attention, and decision progressively limits production and the use of CFCs (chloro fluorocarbon compound).
At present, the main refrigeration agent of CFC-12 is 1,1,1 as an alternative, 2-Tetrafluoroethane (CF
3CH
2F, HFC-134a), its advantage is not destroy atmospheric ozonosphere, and its thermal property and CFC-12 are close, its utilisation technology also reaches its maturity.But, in promoting the use of the process of HFC-134a, brought a series of requirements different with CFC-12, for example, to some major equipments in the refrigeration system, everyways such as refrigeration oil and technology have proposed a series of new demand, have brought many inconvenience for promoting the use of of its reality.Moreover its Greenhouse effect Gwp (Global warning potential) value is also higher, so also be not a kind of desirable refrigeration agent.
In recent years, Germany uses some hydrocarbon polymer, and as come substitute CFC-12 (Refrigerant 12) with Trimethylmethane, its advantage is that thermal property is good, and shortcoming is its combustibility, and explosion hazard becomes its major obstacle of applying all the time.In order to carry out explosion-proof processing, expensive bigger, and the optical haze reaction is arranged.
Purpose of the present invention just is to research and develop out a kind of member that does not need to change in the equipment such as existing refrigerator, refrigerator-freezer, and CFC alternative-12 (Refrigerant 12) directly charges a kind of refrigeration agent in the refrigeration equipments such as existing refrigerator, refrigerator-freezer.
A kind of refrigeration agent of the present invention, contain 40～60% (weight percentage, down with) 1,1-C2H4F2 C2H4F2 (CHF
2-CH
3, HFC-152a) and the chlorodifluoronmethane (CHClF of 40-60%
2, HCFC-22).
Another kind of refrigeration agent of the present invention contains 1 of 30-65%, 1-C2H4F2 C2H4F2 (CHF
2-CH
3, HFC-152a) and the chlorodifluoronmethane (CHClF of 15-50%
2, HCFC-22) and 2-30% be selected from 1,1,1,2,3,3,3-heptafluoro-propane (CF
3CHFCF
3, HFC-227ea), CF3I (CF
3I, FC-1311) a kind of compound wherein.
Another refrigeration agent of the present invention contain 30～65% (weight percentage, down with) 1,1-C2H4F2 C2H4F2 (CHF
2-CH
3, HFC-152a), the chlorodifluoronmethane (CHClF of 5-50%
2, HCFC-22) and the unsym.-tetraehloroethane (CF of 10-60%
3CH
2F, HFC134a).
When stating three kinds of cooling agent in the use, do not change the mineral oil of compressor, reduce the top hole pressure of compressor, can add at least a additive that is selected from methane, ethane, propane, butane, pentane, iso-pentane, the amount of additive is 1,0～15% (weight percentage, down together) of 1-C2H4F2 C2H4F2, chlorodifluoronmethane total amount is good with 1～10% of its total amount again; The amount of its additive is 1,1-C2H4F2 C2H4F2, chlorodifluoronmethane and 1,1,1,2,3,3,0～15% (weight percentage) of 3-heptafluoro-propane or CF3I total amount of compound, again with its total amount 1～10% for well; The amount of its additive is 1,1-C2H4F2 C2H4F2, chlorodifluoronmethane, 1,1,1, and 0～15% (weight percentage) of 2-Tetrafluoroethane total amount is advisable with 1～10% of its total amount again.
In the component in above-mentioned three kinds of cooling agent 1,1-C2H4F2 C2H4F2 (HFC-152a), its structural formula are CHF
2-CH
3, molecular weight is 66.05, and normal boiling point is-24 ℃, and critical temperature is 96.8 ℃, and emergent pressure is 4.25MPa; Chlorodifluoronmethane (HCFC-22), its structural formula are CHClF
2, molecular weight is 86.47, normal boiling point is-40.8 ℃.Critical temperature is 96.8 ℃, and emergent pressure is 4.99MPa; 1,1,1,2,3,3,3-heptafluoro-propane (HFC-227ea), its structural formula is CF
3CHFCF
3, molecular weight is 170.03, and normal boiling point is-18.3 ℃, and critical temperature is 103.5 ℃, and emergent pressure is 2.95MPa; CF3I (FC-1311), its structural formula are CF
3I, molecular weight are 195.91, and normal boiling point is-22.5 ℃, and critical temperature is 121.9 ℃, and emergent pressure is 4.04MPa; 1,1,1,2-Tetrafluoroethane (HFC-134a), its structural formula are CF
3CH
2F, molecular weight are 102.03, and normal boiling point is-26.1 ℃, and critical temperature is 101.1 ℃, and emergent pressure is 4.06MPa.
Refrigeration agent described in the present invention, its preparation method are exactly each above-mentioned component to be carried out physical mixed by its corresponding mixture ratio get final product, and are nontoxic inferior azeotropic mixtures.
Refrigeration agent of the present invention compared with prior art has following advantage:
They have good environmental performance, if ozone depletion factor ODP (Ozone Depletion Factor) and its Global Greenhouse Effect potential Gwp (Global Warning potential) with CFC-12 (Refrigerant 12) are that benchmark is as 1, then the ODP of refrigeration agent of the present invention is less than 0.03, Gwp is also less than 1, can make the cooling agent in the refrigeration equipment such as refrigerator, refrigerator-freezer of near-mid term (before the year two thousand forty).
The thermal parameter and the CFC-12 of refrigeration agent of the present invention are close, can directly charge fully.
The thermal property of refrigeration agent of the present invention, characterization factor COP (Coefficientof performance) and refrigerating duty are better than CFC-12, and volume refrigerating capacity compressor and CFC-12's is close, and therefore refrigeration agent of the present invention can directly use the compressor of crude CFC-12.
To sum up state as can be seen; refrigeration agent of the present invention not only has good thermal property; and it is minimum to the destroying infection of ozonosphere; meet requirement on environmental protection near-mid term (before the year two thousand forty); major parts in its compressor and the system need not changed; production line need not transformed yet, and can be used as the refrigeration agent of CFC alternative near-mid term-12.
With following indefiniteness embodiment refrigeration agent of the present invention is further described, will helps the understanding to the present invention and advantage thereof, and not as a limitation of the invention, protection scope of the present invention is decided by claims.
Embodiment 1
Refrigeration agent in the present embodiment contains 48% 1,1～C2H4F2 C2H4F2 (HFC-152a) and 52% chlorodifluoronmethane (HCFC-22).It is carried out physical mixed by proportioning, relatively the listing in the table 1 of the performance of existing refrigeration agent with present embodiment 1 and the performance of CFC-12.
The performance of the refrigeration agent of table 1 embodiment 1 and the performance of CFC-12 are relatively
Embodiment 1 CFC-12 evaporating pressure, MPa 1.31 1.29 condensing pressures, MPa 15.5 13.5 pressure ratios 11.8 10.5 exhaust temperatures, 166.1 146.0COP
*1.006 1.0 colds
*1.776 1.0 volume refrigerating capacity compressors
*1.122 1.0ODP
*＜0.03 1.0
GWF
* ＜0.1 1.0
* be the corresponding ratio with CFC-12, following examples together.
Embodiment 2
1, the content of 1-C2H4F2 C2H4F2, dichloro two fluoro methane is identical with embodiment 1.Only different is, adds additive propane, and the add-on of propane is 1,3% of 1-C2H4F2 C2H4F2, dichloro two fluoro methane total amounts.
Embodiment 3
1, the content of 1-C2H4F2 C2H4F2, dichloro two fluoro methane is identical with embodiment 1.Only different is, adds additive methane and iso-pentane, and the add-on of methane and iso-pentane is 1,5.5% of 1-C2H4F2 C2H4F2, dichloro two fluoro methane total amounts, and the methane that is added and the weight ratio of iso-pentane are 1: 2.
Embodiment 4
1, the content of 1-C2H4F2 C2H4F2, Refrigerant 12 is identical with embodiment 1.Only different is, adds additive propane and pentane, and the add-on of propane and pentane is 1,2.5% of 1-C2H4F2 C2H4F2, dichloro two fluoro methane total amounts, and the propane that is added and the weight ratio of pentane are 1: 1.
Embodiment 5
Refrigeration agent in the present embodiment contain 60% 1,1-C2H4F2 C2H4F2 (HFC-152a), 20% chlorodifluoronmethane (HCFC-22) and 20% 1,1,2,3,3,3-heptafluoro-propane (HFC-227ea).It is carried out physical mixed by proportioning, relatively the listing in the table 2 of the performance of existing refrigeration agent with present embodiment 5 and the performance of CFC-12.
The performance of the refrigeration agent of table 2 embodiment 5 and the performance of CFC-12 are relatively
Embodiment 5 CFC-12 evaporating pressures, MPa 1.14 1.29 condensing pressures, MPa 13.91 13.5 pressure ratios 12.2 10.5 exhaust temperatures, ℃ 149.4 146.0COP
*1.013 1.0 colds
*1.663 1.0 volume refrigerating capacity compressors
*0.959 1.0ODP
*＜0.03 1.0GWP
*＜0.14 1.0
Embodiment 6
1,1-C2H4F2 C2H4F2 (HFC-152a), chlorodifluoronmethane (HCFC-22) and 1,1,1,2,3,3, the content of 3-heptafluoro-propane (HFC-227ea) is identical with embodiment 5, and only different is to add additive ethane, butane, pentane, the amount of its adding is 1,1-C2H4F2 C2H4F2, chlorodifluoronmethane, 1,1,1,2,3,3,6% of 3-heptafluoro-propane total amount, the weight ratio of the ethane that is added, butane, pentane is 1: 1: 1.
Embodiment 7
1,1-C2H4F2 C2H4F2 (HFC-152a), chlorodifluoronmethane (HCFC-22) and 1,1,1,2,3,3, the content of 3-heptafluoro-propane (HFC-227ea) is identical with embodiment 5, and only different is to add additive propane, and its add-on is 1, the 1-C2H4F2 C2H4F2, chlorodifluoronmethane, 1,1,1,2,3,3,3% of 3-heptafluoro-propane total amount.
Embodiment 8
Refrigeration agent in the present embodiment contain 54% 1,1-C2H4F2 C2H4F2 (HFC-152a), 41% chlorodifluoronmethane (HCFC-22) and 5% CF3I (FC-1311) will carry out physical mixed by proportioning.Existing relatively listing in the table 3 with the performance of the performance of the refrigeration agent of present embodiment 8 and CFC-12.
The performance of the refrigeration agent of table 3 embodiment 8 and the performance of CFC-12 are relatively
Embodiment 5 CFC-12 evaporating pressures, MPa 1.24 1.29 condensing pressures, MPa 14.9 13.5 pressure ratios 12.0 10.5 exhaust temperatures, ℃ 163.9 146.0COP
*1.02 1.0 colds
*1.775 1.0 volume refrigerating capacity compressors
*1.069 1.0ODP
*＜0.03 1.0GWP
*＜0.1 1.0
Embodiment 9
1,1-C2H4F2 C2H4F2 (HFC-153a), chlorodifluoronmethane (HCFC-22) are identical with embodiment 8 with the content of CF3I (FC-1311), only different is to add the additive pentane, the add-on of pentane is 1,3.5% of 1-C2H4F2 C2H4F2, chlorodifluoronmethane and CF3I total amount.
Embodiment 10
Refrigeration agent in the present embodiment contain 45% 1,1-C2H4F2 C2H4F2 (HFC-152a), 5% chlorodifluoronmethane (HCFC-22) and 50% 1,1,1,2-Tetrafluoroethane (HFC-134a).It is carried out physical mixed by proportioning.
Embodiment 11
1,1-C2H4F2 C2H4F2 (HFC-152a), chlorodifluoronmethane (HCFC-22) and 1,1,1, the content of 2-tetrachloroethane (HFC-134a) is with embodiment 10, only different is to add the additive pentane, the amount of its interpolation is 1,1-C2H4F2 C2H4F2, chlorodifluoronmethane, 1,1,1,3.5% of 2-Tetrafluoroethane (HFC-134a) total amount.
Claims (9)
1. a refrigeration agent is characterized in that, contains 1 of 40-60% (weight percentage, down together), 1-C2H4F2 C2H4F2 (CHF
2-CH
3, HFC-152a) and the chlorodifluoronmethane (CHClF of 40-60%
2, HCFC-22).
2. according to a kind of refrigeration agent of claim 1, it is characterized in that also can contain at least a additive that is selected from methane, ethane, propane, butane, pentane, iso-pentane, the amount of additive is 1,0～15% (weight percentage, down together) of 1-C2H4F2 C2H4F2, chlorodifluoronmethane total amount.
3. according to a kind of refrigeration agent of claim 2, it is characterized in that the amount of additive is 1,1～10% of 1-C2H4F2 C2H4F2, chlorodifluoronmethane total amount.
4. another kind of refrigeration agent is characterized in that, contain 30～65% 1,1-C2H4F2 C2H4F2 (CHF
2-CH
3, HFC-152a) and the chlorodifluoronmethane (CHClF of 15-50%
2, HCFC-22) and 2-30% be selected from 1,1,1,2,3,3,3-heptafluoro-propane (CF
3CHF-CF
3, HFC-227ea), CF3I (CF
3I, FC-1311) a kind of compound wherein.
5. according to a kind of refrigeration agent of claim 4, it is characterized in that also can contain at least a additive that is selected from methane, ethane, propane, butane, pentane, iso-pentane, the amount of additive is 1,1-C2H4F2 C2H4F2, chlorodifluoronmethane and 1,1,1,2,3,3, the 0-15% of the total amount of 3-heptafluoro-propane or CF3I compound (weight percentage, down together).
6. according to a kind of refrigeration agent of claim 5, it is characterized in that the amount of additive is 1,1-C2H4F2 C2H4F2, chlorodifluoronmethane and 1,1,1,2,3,3,1～10% of 3-heptafluoro-propane or CF3I total amount of compound.
7. another refrigeration agent is characterized in that, contains 1 of 30-65% (weight percentage, down together), 1-C2H4F2 C2H4F2 (CHF
2-CH
3, HFC-152a), the chlorodifluoronmethane (CHClF of 5-50%
2, HCFC-22) and 10-60% 1,1,1,2-Tetrafluoroethane (CF
3-CH
2F, HFC-134a).
8. according to a kind of refrigeration agent of claim 7, it is characterized in that, also contain at least a additive that is selected from methane, ethane, propane, butane, pentane, iso-pentane, the amount of additive is 1,1-C2H4F2 C2H4F2, chlorodifluoronmethane, 1,1,1,0～15% (weight percentage, down together) of 2-Tetrafluoroethane total amount.
9. a kind of refrigeration agent according to Claim 8 is characterized in that, the amount of additive is 1,1-C2H4F2 C2H4F2, chlorodifluoronmethane, 1,1,1, the 1-10% of 2-Tetrafluoroethane total amount.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96106541 CN1162616A (en) | 1996-06-19 | 1996-06-19 | Pollutionless refrigerant |
| PCT/CN1996/000093 WO1997015637A1 (en) | 1995-10-20 | 1996-10-18 | Refrigerant |
| AU72769/96A AU7276996A (en) | 1995-10-20 | 1996-10-18 | Refrigerant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96106541 CN1162616A (en) | 1996-06-19 | 1996-06-19 | Pollutionless refrigerant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1162616A true CN1162616A (en) | 1997-10-22 |
Family
ID=5119252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96106541 Pending CN1162616A (en) | 1995-10-20 | 1996-06-19 | Pollutionless refrigerant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1162616A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1313559C (en) * | 2005-12-09 | 2007-05-02 | 天津大学 | Ternary mixed working medium for intermediate-high-temperature heat pump |
| CN107513373A (en) * | 2017-02-22 | 2017-12-26 | 唐建 | A kind of environmental protection refrigerant being applied in air-conditioning/heat pump |
-
1996
- 1996-06-19 CN CN 96106541 patent/CN1162616A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1313559C (en) * | 2005-12-09 | 2007-05-02 | 天津大学 | Ternary mixed working medium for intermediate-high-temperature heat pump |
| CN107513373A (en) * | 2017-02-22 | 2017-12-26 | 唐建 | A kind of environmental protection refrigerant being applied in air-conditioning/heat pump |
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