CN1061075C - Long service green refrigerant - Google Patents
Long service green refrigerant Download PDFInfo
- Publication number
- CN1061075C CN1061075C CN 98100887 CN98100887A CN1061075C CN 1061075 C CN1061075 C CN 1061075C CN 98100887 CN98100887 CN 98100887 CN 98100887 A CN98100887 A CN 98100887A CN 1061075 C CN1061075 C CN 1061075C
- Authority
- CN
- China
- Prior art keywords
- hfc
- refrigerant
- kinds
- refrigeration agent
- existing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000003507 refrigerant Substances 0.000 title abstract 7
- RWRIWBAIICGTTQ-UHFFFAOYSA-N difluoromethane Chemical compound FCF RWRIWBAIICGTTQ-UHFFFAOYSA-N 0.000 claims abstract description 50
- 238000005057 refrigeration Methods 0.000 claims abstract description 30
- LVGUZGTVOIAKKC-UHFFFAOYSA-N 1,1,1,2-tetrafluoroethane Chemical compound FCC(F)(F)F LVGUZGTVOIAKKC-UHFFFAOYSA-N 0.000 claims abstract description 20
- VPAYJEUHKVESSD-UHFFFAOYSA-N trifluoroiodomethane Chemical compound FC(F)(F)I VPAYJEUHKVESSD-UHFFFAOYSA-N 0.000 claims description 5
- NPNPZTNLOVBDOC-UHFFFAOYSA-N 1,1-difluoroethane Chemical compound CC(F)F NPNPZTNLOVBDOC-UHFFFAOYSA-N 0.000 abstract description 8
- YFMFNYKEUDLDTL-UHFFFAOYSA-N 1,1,1,2,3,3,3-heptafluoropropane Chemical compound FC(F)(F)C(F)C(F)(F)F YFMFNYKEUDLDTL-UHFFFAOYSA-N 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 6
- 230000006378 damage Effects 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- -1 FC-1311 Chemical compound 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 description 21
- 238000009835 boiling Methods 0.000 description 5
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- GTLACDSXYULKMZ-UHFFFAOYSA-N pentafluoroethane Chemical compound FC(F)C(F)(F)F GTLACDSXYULKMZ-UHFFFAOYSA-N 0.000 description 2
- 238000009834 vaporization Methods 0.000 description 2
- 230000008016 vaporization Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 231100000749 chronicity Toxicity 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
Landscapes
- Lubricants (AREA)
Abstract
The present invention relates to a long-time green refrigerant, particularly to a refrigerant for substituting R22 or R502 in air conditioners, heat pumps and refrigeration systems. The refrigerant contains HFC-32, HFC-134a, FC-1311, HFC-152a or HFC-227 ea and has no damage to the ozonosphere. Compared with the existing substitute, the refrigerant of the present invention has the advantages of good environmental performance and small greenhouse effect (GWP value) so that the refrigerant can substitute the R22 or the R502 for a long time. The main parts and the production line of the existing equipment do not need changing and the refrigerant can be directly filled and has good hot working performance and good hot working parameter.
Description
The present invention relates to a kind of refrigeration agent, relate in particular to a kind of green chronicity refrigeration agent that air-conditioning, heat pump and refrigeration system substitute R22 or R502 that is used for.
In the prior art,, mostly use R22 or R502 for a long time as the refrigeration agent in air-conditioning, heat pump, refrigeration system and the cryogenic refrigerating system.Found that it had destruction to atmospheric ozone layer in 1974 after deliberation, and Greenhouse effect are arranged.For this reason, determined in the world developing country's (containing China) to R502 from, R22 in 2005 from the year two thousand twenty forbidding substantially.
At present, the refrigeration agent of R22 mainly contains R407C as an alternative in the world, R410A.R407C is made up of HFC-32, HFC-125 and three kinds of components of HFC-134a; R410A is made up of HFC-32 and HFC-125.Also have in addition and a kind ofly form by HFC-32 and HFC-134a.But the COP of R407C is lower by about 10% than R22; And the COP of R410A is low by about 13%, and refrigerating effect per unit swept volume increases approximately 40%, and compressor must redesign, and particularly pressure increases a lot.Improved about 60% than R22 as condensing pressure, system and pipeline also must redesigns.The COP of HFC-32/134a is lower by about 7% than R22, particularly has combustibility under bad working environments.Though these three kinds of surrogates all do not damage the ozone layer, preceding two kinds of Greenhouse effect are big (GWP of R410A is 1900, and R407C is 1600) also.
Mainly contain R404A and R507 as the long-term refrigeration agent that substitutes R502 in the world.The former COP is lower by about 15% than R502, and the latter's COP is lower, and is low approximately by about 17%, so all not satisfactory.
It is better that purpose of the present invention and task are to research and develop a kind of environmental performance, can substitute the lower refrigeration agent of R22 or R502 and Greenhouse effect (GWP value) for a long time, make it need not change major parts in the existing installation substantially, and have more good thermal property and thermal parameter.
Purpose of the present invention and task are achieved through the following technical solutions: this refrigeration agent contains HFC-32 and two kinds of components of HFC-134a, it is characterized in that also containing two kinds of components of FC-1311 and HFC-152a, and the content of its each component (weight percent) is respectively:
HFC-32 10-40％
HFC-134a 40-70％
FC-1311 5-40％
The content (weight percent) of the above-mentioned refrigeration agent each component of HFC-152a 0-10% can become respectively:
HFC-32 20-40％
HFC-134a 45-55％
FC-1311 15-35％
HFC-152a 0-10% or be: HFC-32 20-40%
HFC-134a 40-50％
FC-1311 5-20％
HFC-152a 5-10％
Another kind of refrigeration agent of the present invention contains two kinds of components of HFC-32 and HFC-134a, it is characterized in that also containing the HFC-227ea component, and the content of its each component (weight percent) is respectively:
HFC-32 10-40％
HFC-134a 40-70％
HFC-227ea 5-30％
The content of four kinds of components (weight percent) can become respectively in the above-mentioned refrigeration agent:
HFC-32 20-35％
HFC-134a 50-70％
HFC-227ea 5-20％
Refrigeration agent of the present invention, its preparation method are above-mentioned each component to be carried out physical mixed at normal temperatures by its corresponding mixture ratio (weight percent) get final product.
HFC-32 in the above-mentioned component promptly is called methylene fluoride, and its molecular formula is CH
2F
2, molecular weight is 52.02, and normal boiling point is-51.7 ℃, and critical temperature is 78.2 ℃, and emergent pressure is 5.8Mpa.
HFC-134a also claims 1,1,1, the 2-Tetrafluoroethane, and its molecular formula is CH
2FCF
3,, molecular weight is 102.03, and normal boiling point is-26.1 ℃, and critical temperature is 101.1 ℃, and emergent pressure is 4.06MPa.
FC-1311 also claims CF3I, and its molecular formula is 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.
HFC-152a also claims 1, the 1-C2H4F2 C2H4F2, and its molecular formula is CH
3CHF
2, molecular weight is 66.05, and normal boiling point is-24 ℃, and critical temperature is 96.8 ℃, and emergent pressure is 4.25Mpa.
HFC-227ea also claims 1,1,1,2,3,3,3, and-heptafluoro-propane, its molecular formula are CH
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.
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 limited by claims.
Embodiment 1:
Get 30% HFC-32,35% HFC-134a and 35% FC-1311 carry out after the physical mixed these three kinds of components at normal temperatures as refrigeration agent.
Embodiment 2:
Get 40% HFC-32,45% HFC-134a, these four kinds of components of 5% FC-1311 and 10% HFC-152a carry out after the physical mixed as refrigeration agent.
Embodiment 3:
Get 26% HFC-32, three kinds of components of 69% HFC-134a and 5% HFC-227ea carry out after the physical mixed at normal temperatures as refrigeration agent.
If the design conditions of air-conditioning, heat pump are taken as: vaporization temperature is 7.2 ℃, condensing temperature is 54.4 ℃, condensate depression is 8.3 ℃, 11.1 ℃ of suction temperatures, press efficient is 80%, according to cycle calculations, with the foregoing description l, 2 and 3 have related parameter and with R22 and existing three kinds of surrogates relatively list in table 1.
The comparison of the performance of table 1 embodiment refrigeration agent and R22 and existing three kinds of main surrogates
* be relative value with R22.
| R22 | R407C | R410A | HFC-32/134a | Embodiment 1 | Embodiment 2 | Embodiment 3 | |
| ODP | 0.05 | 0 | 0 | 0 | 0 | 0 | 0 |
| GWP | 1700 | 1600 | 1900 | 1100 | 629 | 831 | 1212 |
| Evaporating pressure MPa | 0.62 | 0.68 | 1.04 | 0.63 | 0.66 | 0.70 | 0.60 |
| Condensing pressure MPa | 2.17 | 2.50 | 3.48 | 2.36 | 2.43 | 2.55 | 2.26 |
| Pressure ratio | 3.48 | 3.70 | 3.35 | 3.75 | 3.65 | 3.70 | 3.76 |
| Exhaust temperature ℃ | 97.2 | 86.7 | 95.1 | 91.2 | 95.1 | 96.5 | 88.4 |
| COP * | 1.0 | 0.91 | 0.87 | 0.94 | 0.95 | 0.94 | 0.94 |
| Cold * | 1.0 | 0.91 | 0.94 | 1.06 | 0.92 | 1.15 | 1.01 |
| Volume refrigerating capacity compressor * | 1.0 | 0.99 | 1.38 | 0.98 | 1.04 | 1.08 | 1.00 |
As seen from the above table, the environmental performance ODP of these three embodiment and GWP are all good than R22.And GWP also goes with R410A than existing two kinds of surrogate R407C.Better or suitable than HFC-32/134a.From exhaust temperature, these three kinds of embodiment also all with R22 quite or lower slightly.Parameter such as condensing pressure, evaporating pressure is all close with R22, and all is in allowed band, can directly charge.From thermal property, though COP is more lower slightly than R22, go with R410A than existing two kinds of surrogate R407C, and suitable with HFC-32/134a.Cold is all big or equate than R22 and existing surrogate, and also promptly meaning filling quantity, comparable they are few or suitable.Volume refrigerating capacity compressor is roughly suitable substantially with R22, the also high percentum that has.These three embodiment are the same with HFC-32/134a with existing three kinds of surrogate R407C, R410A, all need more oil change.
Embodiment 4:
Get 35% HFC-32, these three kinds of components of 50% HFC-134a and 15% FC-1311 carry out after the physical mixed at normal temperatures as refrigeration agent.
Embodiment 5:
Get 40% HFC-32,45% HFC-134a, these four kinds of components of 5% FC-1311 and 10% HFC-152a carry out after the physical mixed at normal temperatures as refrigeration agent.
Embodiment 6:
Get 32% HFC-32, three kinds of components of 58% HFC-134a and the HFC-227ea of lO% carry out after the physical mixed at normal temperatures as refrigeration agent.
If the cryogenic refrigeration operating mode is: vaporization temperature-30 ℃, 40 ℃ of condensing temperatures, 0 ℃ of condensate depression, 18 ℃ of suction temperatures, press efficient 70%, according to cycle calculations, with the foregoing description 4,5 and 6 have related parameter and with R502 and existing two kinds of surrogates relatively list in table 2.
The comparison of the performance of table 2 embodiment refrigeration agent and R502 and existing two kinds of main surrogates
* all are relative ratios with R502.As seen from the above table, the GWP value of these three embodiment is all lower than R502 and existing two kinds of main surrogates, and illustrate that environmental performance is better: pressure parameter and R502 are suitable, and all lower than existing two kinds of main surrogates.From thermal property, no matter COP, cold and volume refrigerating capacity compressor are also all good than R502 and existing two kinds of main surrogates.These three embodiment are the same with existing two kinds of main surrogates, need more oil change.
| R502 | R404A | R507 | Embodiment 4 | Embodiment 5 | Embodiment 6 | |
| ODP | 0．214 | 0 | 0 | 0 | 0 | 0 |
| GWP | 4510 | 3850 | 3900 | 853 | 831 | 1270 |
| Evaporating pressure MPa | 0．18 | 0．23 | 0．24 | 0．17 | 0．17 | 0．16 |
| Condensing pressure MPa | 1．61 | 1．98 | 2．03 | 1．78 | 1．80 | 1．70 |
| COP * | 1．0 | 0．84 | 0．82 | 1．04 | 1．05 | 1．02 |
| Cold | 1．0 | 0．92 | 0．88 | 1．64 | 1．86 | 1．63 |
| Volume refrigerating capacity compressor * | 1．0 | 1．02 | 1．03 | 1．09 | 1．12 | 1．00 |
The present invention compared with prior art has the following advantages and beneficial effect: its environment is better, does not damage the ozone layer, and can substitute for a long time R22 or R502, and greenhouse effects (GWP value) are less. Under the prerequisite that need not change critical piece in the existing equipment and production line. no matter COP, cold and volume refrigerating capacity compressor are also all good than existing substitute, thereby the present invention has more good thermal property and thermal parameter, and can directly charge.
Claims (3)
1. a refrigeration agent contains methylene fluoride and 1,1,1, and two kinds of components of 2-Tetrafluoroethane is characterized in that also containing CF3I and 1, two kinds of components of 1-C2H4F2 C2H4F2, and its content (weight percent) is respectively:
Methylene fluoride: 10-40%
1,1,1,2-Tetrafluoroethane: 40-70%
CF3I: 5-40%
1,1-C2H4F2 C2H4F2: 0-10%
2. according to the described refrigeration agent of claim 1, it is characterized in that the content (weight percent) of each component in the above-mentioned refrigeration agent is respectively:
Methylene fluoride: 20-40%
1,1,1,2-Tetrafluoroethane: 45-55%
CF3I: 15-35%
1,1-C2H4F2 C2H4F2: 0-10%
3. according to the described refrigeration agent of claim 1, it is characterized in that the content (weight percent) of each component in the above-mentioned refrigeration agent is respectively:
Methylene fluoride: 20-40%
1,1,1,2-Tetrafluoroethane: 40-50%
CF3I: 5-20%
1,1-C2H4F2 C2H4F2: 5-10%
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98100887 CN1061075C (en) | 1998-03-06 | 1998-03-06 | Long service green refrigerant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98100887 CN1061075C (en) | 1998-03-06 | 1998-03-06 | Long service green refrigerant |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00121159 Division CN1123618C (en) | 2000-07-28 | 2000-07-28 | Refrigerant |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1189525A CN1189525A (en) | 1998-08-05 |
| CN1061075C true CN1061075C (en) | 2001-01-24 |
Family
ID=5216316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98100887 Expired - Fee Related CN1061075C (en) | 1998-03-06 | 1998-03-06 | Long service green refrigerant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1061075C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11078392B2 (en) | 2017-12-29 | 2021-08-03 | Trane International Inc. | Lower GWP refrigerant compositions |
| CN109852348B (en) * | 2019-01-10 | 2020-10-23 | 珠海格力电器股份有限公司 | Environment-friendly mixed working medium |
| CN110257014B (en) * | 2019-07-19 | 2020-10-09 | 珠海格力电器股份有限公司 | Mixed refrigeration working medium |
| CN110746936B (en) * | 2019-10-11 | 2021-05-04 | 金华永和氟化工有限公司 | Environment-friendly mixed refrigerant |
| AU2020402053A1 (en) * | 2019-12-12 | 2022-05-19 | The Chemours Company Fc, Llc | Refrigerant compositions comprising R-32, R-134a, and CF3I |
| CN114702938B (en) * | 2022-04-19 | 2023-03-24 | 珠海格力电器股份有限公司 | Mixed refrigerant and air conditioning system |
-
1998
- 1998-03-06 CN CN 98100887 patent/CN1061075C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1189525A (en) | 1998-08-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1137954C (en) | Ternary mixture refrigerant and heat pump apparatus utilizing the same | |
| CN110699043B (en) | Environment-friendly mixed refrigeration working medium | |
| CN109971433B (en) | Multi-component mixed refrigerant | |
| CN1123618C (en) | Refrigerant | |
| CN1061075C (en) | Long service green refrigerant | |
| CN101671543B (en) | Environment-friendly refrigerant | |
| CN101270275B (en) | Mixed refrigerant | |
| JPH08291284A (en) | Pseudoazeotrope based on difluoromethane and pentafluorodimethyl ether and its use as refrigerant | |
| JPH08291283A (en) | Pseudoazeotrope based on difluoromethane and pentafluoroethane and its use as refrigerant | |
| CN101245238A (en) | Refrigerant capable of directly filling to substitute R22 | |
| CN1793276A (en) | Environment protection type refrigerant for middle and low temp, refrigerating system | |
| CN1216118C (en) | Environmental protection type refrigerant for substituting HCFC-22 | |
| CN1060794C (en) | Pollution-free refrigerant used for middle and low temp. refrigerating system | |
| CN1123617C (en) | Refrigerant for medium and low temperature refrigeration or air conditioner heat pump system | |
| CN100489051C (en) | Ternary mixed refrigerant composition | |
| KR101133095B1 (en) | Mixed refrigerant composed of r1270 and r170 | |
| CN1148613A (en) | Refrigerant substituted for freon-12 for long time | |
| CN114752356B (en) | Refrigerant and application thereof | |
| CN1285699C (en) | Environmental protection type refrigerant for replacement of CFC-12 | |
| CN114605965B (en) | Mixed refrigerant and application thereof | |
| CN114276784B (en) | Ternary mixed refrigerant for vehicle, preparation method thereof and refrigeration equipment | |
| CN1111193C (en) | Refrigerant for middle- or low-temp refrigerating system | |
| CN114752357B (en) | Energy-saving environment-friendly refrigerant and application thereof | |
| CN113046029B (en) | Composition containing fluoroolefin and preparation method thereof | |
| CN1267524C (en) | Refrigerant for replacing freon-12 in centrifugal type cooling water unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20010124 |