CN100389165C - Tetrachloroethane(HFC134a) containing middle and high temperature heat pump mixed working substance - Google Patents
Tetrachloroethane(HFC134a) containing middle and high temperature heat pump mixed working substance Download PDFInfo
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- CN100389165C CN100389165C CNB2004100779549A CN200410077954A CN100389165C CN 100389165 C CN100389165 C CN 100389165C CN B2004100779549 A CNB2004100779549 A CN B2004100779549A CN 200410077954 A CN200410077954 A CN 200410077954A CN 100389165 C CN100389165 C CN 100389165C
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Abstract
The present invention relates to a group of middle and high temperature heat pump mixed working mediums containing HFC134a, which is suitable for being used as a refrigerant for a middle and high temperature heat pump system at the condensing temperature of 60 to 120 DEG C. The mixed working mediums are binary mixtures and ternary mixtures prepared from HCFC-123, HFC-134a, HCFC-142b, HFC-152a, HFC-245 fa and HFC-236 fa according to different mass ratios and a corresponding working medium is prepared by physically mixing the components at normal temperature according to the determined ratios. The mixed working mediums of the present invention have the advantages of no damage to the ozonosphere, low greenhouse effect, environmental protection, proper hot working parameter and good circulation performance. The middle and high temperature heat pump system of the working mediums can be optimized by an HCFC22 air-conditioning compressor and the working mediums can be directly applied to an original HCFC22 air-conditioning unit which is converted to the middle and high temperature heat pump group of the working mediums.
Description
Technical field
The invention belongs to the refrigeration agent in heat pump or refrigeration, the air-conditioning system, especially be suitable as condensing temperature and be the refrigeration working medium in 60-120 ℃ the moderate and high temperature heat system.
Background technology
Heat pump techniques can (for example electric energy) be a cost to consume a part of higher-grade, by thermodynamic cycle, the grade of the low grade heat energy that can not directly utilize (heat energy that contains in air, soil, surface water or the shallow ground water, and Geothermal energy, sun power, industrial exhaust heat etc.) rises to the level that can support utilization; The Energy Efficiency Ratio of system (or the coefficient of performance--COP) generally be higher than 3.For satisfying the requirement of industrial sector to higher heat supply temperature, high temperature in the heat pump techniques forward (condensing temperature is 80-100 ℃), high temperature (condensing temperature is higher than 100 ℃) heat pump direction develop.One of key issue of restriction moderate and high temperature heat technical development is exactly to lack the cycle fluid that is fit to.Once as the material of moderate and high temperature heat systematic working medium, CFC11, CFC12, CFC114 etc. were arranged in the past.They are CFC class material, and its depletion of the ozone layer gesture (ODP) and global warming potential (GWP) are all very big, and developed country is in forbidding in 1996, and developing country also will be in forbidding in 2010.Use more air-conditioning-heat pump at present, used working medium mainly is HCFC22 or its surrogate R407C, R410A etc., the hot water top temperature that system can provide is 50-55 ℃, and (high more not only cycle performance worsens, also will cause the accident because of the pressure and the warm upper limit of row that breaks through system), the heat energy of higher temperature level can't be provided.Development environment close friend, the good novel working medium of thermal performance are most important to the development of moderate and high temperature heat technology.
Mixing medium provided by the invention is for condensing temperature is that 60-120 ℃ moderate and high temperature heat system applies is developed, and also can be used as centrifugal refrigerating, air conditioning unit working medium.
Summary of the invention
The purpose of this invention is to provide a kind of new working medium that the moderate and high temperature heat unit is used that is suitable for, make its environmental characteristics and cycle performance all good.
Content introduction of the present invention and embodiment: a kind of moderate and high temperature heat mixing medium, contain HFC-152a (1, the 1-C2H4F2 C2H4F2), a HCFC-124 (chloro-1,2,2, the 2-Tetrafluoroethane), HCFC-123 (1,1-two chloro-2,2, the 2-Halothane), HFC-134a (1,1,1, the 2-Tetrafluoroethane), HCFC-142b (chloro-1,1-C2H4F2 C2H4F2), HFC-245fa (1,1,1,3,3-pentafluoropropane), HFC-236fa (1,1,1,3,3,3 ,-HFC-236fa) and HC-600a (Trimethylmethane) totally 8 kinds of constituent element materials.The basic parameter of each constituent element working medium is as shown in table 1.
A kind of moderate and high temperature heat mixing medium is characterized in that HFC-152a, HCFC-124 and HCFC-123 form; Or form by HFC-134a and HCFC-124; Or form by HFC-134a, HCFC-124 and HCFC-142b; Or form by HFC-134a, HCFC-123 and HCFC-124; Or form by HFC-152a, HCFC-124 and HFC-245fa; Or form by HCFC-124 and HFC-152a; Or form by HCFC-124, HFC-152a and HCFC-142b; Or form by HFC-134a, HFC-245fa and HCFC-124; Or form by HFC-152a, HFC-236fa and HCFC-124; Or form by HCFC-124 and HC-600a.Its concrete proportioning (mass percent) is:
HFC-152a/HCFC-124/HCFC-123：5-40/40-90/20-60％，
HFC-134a/HCFC-124/HCFC142-b：5-50/30-90/0-60％，
HFC-134a/HCFC-123/HCFC-124:20-90/10-80/0-40%, and the content of HCFC-124 is not 0,
HFC-152a/HCFC-124/HFC-245fa：5-30/40-90/5-30％，
HCFC-124/HFC-152a/HCFC-142b：40-95/5-30/0-30％，
HFC-134a/HFC-245fa/HCFC-124:30-95/10-60/0-70%, and the content of HCFC-124 is not 0,
HFC-152a/HFC-236fa/HCFC-124:5-30/10-95/0-60%, and the content of HCFC-124 is not 0,
HCFC-124/HC-600a：90-99/1-10％。
More than each constituent element material mass percentage ratio sum of every kind of mixing medium be 100%.
The preparation method of mixing medium of the present invention is each constituent element material to be carried out physical mixed at normal temperatures by its specified quality proportioning get final product.The present invention has the following advantages and beneficial effect:
(1) environmental performance: ODP of the present invention equals zero or approaches zero, and the GWP of most combinations is lower in the mixing medium, less than 1000.As seen its environmental characteristics is good, meets the requirement of protecting ozonosphere, reducing Greenhouse effect.(2) thermal parameter is suitable: under the moderate and high temperature heat design conditions, evaporating pressure and condensing pressure all with HCFC22 close under air conditioning condition, need not to be working medium of the present invention specialized designs compressor separately, can adopt the compressor of air conditioner of HCFC22 in the moderate and high temperature heat system design.(3) cycle performance: the present invention is about 4.4 at the heat supply COP under the above-mentioned design conditions, the unit mass heat supplied substantially more than 110kJ/kg, the unit volume heat supplied is at 3500kJ/m
3About, cycle performance is good.
Working medium of the present invention directly can be poured into existing HCFC22 air conditioning unit (some working medium requires more oil change), be translated into the moderate and high temperature heat unit of new working medium, and can guarantee to circulate efficiency and unit main hardware matching degree.
The basic parameter of contained constituent element in the table 1 moderate and high temperature heat mixing medium
T
b: normal boiling point, T
c: critical temperature, P
c: emergent pressure
Embodiment
Embodiment 1: get 13
Mass%HFC-134a, 53
Mass%HCFC-124,34
Mass%HCFC-142b carries out after the physical mixed at normal temperatures as refrigeration agent.
Embodiment 2: get 24
Mass%HFC-152a, 62
Mass%HCFC-124,14
Mass%HCFC-123 carries out after the physical mixed at normal temperatures as refrigeration agent.
Embodiment 3: get 16
Mass%HFC-152a, 70
Mass%HCFC-124,14
Mass%HFC-245fa carries out after the physical mixed at normal temperatures as refrigeration agent.
Embodiment 4: get 71
Mass%HCFC-124,17
Mass%HCFC-142b, 12
Mass%HFC-152a carries out after the physical mixed at normal temperatures as refrigeration agent.
Embodiment 5: get 9
Mass%HFC-134a, 8
Mass%HCFC-124,83
Mass%HFC-245fa carries out after the physical mixed at normal temperatures as refrigeration agent.
Embodiment 6: get 23
Mass%HFC-152a, 24
Mass%HCFC-124,53
Mass%HFC-236fa carries out after the physical mixed at normal temperatures as refrigeration agent.
Embodiment 7: get 95
Mass%HCFC-124,5
MassCarry out under the %HC-600a, normal temperature after the physical mixed as refrigeration agent.
If the design conditions of heat pump are taken as: average vaporization temperature is 40 ℃, average condensing temperature is 90 ℃, the suction superheat temperature be 5 ℃ (to some working medium, for guaranteeing to avoid wet compression, getting the exhaust superheating temperature is 5 ℃), supercooling temperature is 5 ℃, it is 85% that compression process is decided entropic efficiency, according to cycle calculations, above-mentioned 7 embodiment have related parameter and cycle performance index as shown in table 2.
Table 2 embodiment of the invention performance
| Parameter and performance | Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 |
| Evaporating pressure/MPa | 0.619 | 0.567 | 0.596 | 0.628 |
| Condensing pressure/MPa | 2.018 | 2.018 | 1.998 | 2.072 |
| Pressure ratio | 3.30 | 3.56 | 3.35 | 3.30 |
| Exhaust temperature/℃ | 97.7 | 103.7 | 96.6 | 95.5 |
| COP | 4.51 | 4.50 | 4.46 | 4.33 |
| Heat supplied/kJ/kg | 121.6 | 141.9 | 124.2 | 118.4 |
| Unit volume heating capacity/kJ/m 3 | 3758 | 3745 | 3756 | 3793 |
| ODP | 0.034 | 0.012 | 0.012 | 0.012 |
| GWP | 1070 | 289 | 400.8 | 654 |
| Parameter and performance | Embodiment 5 | Embodiment 6 | Embodiment 7 |
| Evaporating pressure/MPa | 0.570 | 0.620 | 0.584 |
| Condensing pressure/MPa | 1.954 | 2.032 | 1.918 |
| Pressure ratio | 3.43 | 3.28 | 3.28 |
| Exhaust temperature/℃ | 96.0 | 96.4 | 95.1 |
| COP | 4.29 | 4.43 | 4.32 |
| Heat supplied/kJ/kg | 107.4 | 122.1 | 106.7 |
| Unit volume heating capacity/kJ/m 3 | 3498 | 3769 | 3473 |
| ODP | 0.016 | 0.004 | 0.018 |
| GWP | 571.2 | 2668 | ＜401 |
Claims (1)
1. one kind contains 1,1,1, the moderate and high temperature heat mixing medium of 2-Tetrafluoroethane is characterized in that by 1,1,1,2-Tetrafluoroethane, 1,1-C2H4F2 C2H4F2 and 1,1-two chloro-2,2, the 2-Halothane is formed, and the quality percentage composition is (30-90): (5-40): (5-70), and each constituent element material mass percentage ratio sum equals 100%.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 03100578 CN1233780C (en) | 2003-01-20 | 2003-01-20 | A group of medium and high temperature heat pump mixed working medium |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 03100578 Division CN1233780C (en) | 2003-01-20 | 2003-01-20 | A group of medium and high temperature heat pump mixed working medium |
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| CN1629247A CN1629247A (en) | 2005-06-22 |
| CN100389165C true CN100389165C (en) | 2008-05-21 |
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| CNB2004100779549A Expired - Fee Related CN100389165C (en) | 2003-01-20 | 2003-01-20 | Tetrachloroethane(HFC134a) containing middle and high temperature heat pump mixed working substance |
| CNB2004100779553A Expired - Fee Related CN100400615C (en) | 2003-01-20 | 2003-01-20 | Medium-high temperature hot pumping mixed working medium containing HFC-152a |
| CN 03100578 Expired - Fee Related CN1233780C (en) | 2003-01-20 | 2003-01-20 | A group of medium and high temperature heat pump mixed working medium |
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| CNB2004100779553A Expired - Fee Related CN100400615C (en) | 2003-01-20 | 2003-01-20 | Medium-high temperature hot pumping mixed working medium containing HFC-152a |
| CN 03100578 Expired - Fee Related CN1233780C (en) | 2003-01-20 | 2003-01-20 | A group of medium and high temperature heat pump mixed working medium |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1328350C (en) * | 2004-04-05 | 2007-07-25 | 天津大学 | Middle and high temperature heat pump mixed working medium containing HFC245fa |
| CN100387674C (en) * | 2005-01-14 | 2008-05-14 | 天津大学 | Mixed substance containing HCFC-142b(chloro-1,1-difluoroethane) for moderate and high temperature heat pump |
| CN100347265C (en) * | 2005-09-16 | 2007-11-07 | 清华大学 | Mixed heat pump work substance with zero ozone layer destroying potential |
| CN101186807B (en) * | 2007-12-01 | 2011-01-26 | 广东长菱空调冷气机制造有限公司 | Mixed refrigerant |
| CN106566476A (en) * | 2016-10-28 | 2017-04-19 | 佛山市大芝热泵制冷设备有限公司 | Environment-friendly ternary non-azeotropic high-condensing-temperature refrigerant and filling method thereof |
| CN107603567A (en) * | 2017-10-13 | 2018-01-19 | 青岛理工大学 | Application of HFC-245fa/HFC-134a mixed refrigerant in high-temperature heat pump |
| CN107603568A (en) * | 2017-10-17 | 2018-01-19 | 青岛理工大学 | Environment-friendly non-azeotropic mixed refrigerant suitable for high-temperature heat pump |
| CN111057523B (en) * | 2019-11-14 | 2021-03-16 | 浙江巨化新材料研究院有限公司 | Medium-high temperature heat pump mixed working medium |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1075977A (en) * | 1991-12-03 | 1993-09-08 | 美国环境保护署 | Refrigerant composition and application method thereof |
| US5728314A (en) * | 1990-03-23 | 1998-03-17 | California Inst. Of Technology | Near azeotropic mixture substitute for dichlorodifluoromethane |
| US5800729A (en) * | 1995-07-26 | 1998-09-01 | Electric Power Research | Mixtures of pentafluoropropane and a hydrofluorocarbon having 3 to 6 carbon atoms |
| CN1347953A (en) * | 2001-09-11 | 2002-05-08 | 顾雏军 | Improved zeotropic working medium used in thermal circulation |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9618207D0 (en) * | 1996-08-30 | 1996-10-09 | Ici Plc | Refrigerant compositions |
| US6261472B1 (en) * | 1996-11-04 | 2001-07-17 | E. I. Du Pont De Nemours And Company | Azeotrope-like compositions containing fluoroethane |
-
2003
- 2003-01-20 CN CNB2004100779549A patent/CN100389165C/en not_active Expired - Fee Related
- 2003-01-20 CN CNB2004100779553A patent/CN100400615C/en not_active Expired - Fee Related
- 2003-01-20 CN CN 03100578 patent/CN1233780C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5728314A (en) * | 1990-03-23 | 1998-03-17 | California Inst. Of Technology | Near azeotropic mixture substitute for dichlorodifluoromethane |
| CN1075977A (en) * | 1991-12-03 | 1993-09-08 | 美国环境保护署 | Refrigerant composition and application method thereof |
| US5800729A (en) * | 1995-07-26 | 1998-09-01 | Electric Power Research | Mixtures of pentafluoropropane and a hydrofluorocarbon having 3 to 6 carbon atoms |
| CN1347953A (en) * | 2001-09-11 | 2002-05-08 | 顾雏军 | Improved zeotropic working medium used in thermal circulation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1629247A (en) | 2005-06-22 |
| CN1233780C (en) | 2005-12-28 |
| CN100400615C (en) | 2008-07-09 |
| CN1425735A (en) | 2003-06-25 |
| CN1613956A (en) | 2005-05-11 |
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