CN100400615C - Medium-high temperature hot pumping mixed working medium containing HFC-152a - Google Patents
Medium-high temperature hot pumping mixed working medium containing HFC-152a Download PDFInfo
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- CN100400615C CN100400615C CNB2004100779553A CN200410077955A CN100400615C CN 100400615 C CN100400615 C CN 100400615C CN B2004100779553 A CNB2004100779553 A CN B2004100779553A CN 200410077955 A CN200410077955 A CN 200410077955A CN 100400615 C CN100400615 C CN 100400615C
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- high temperature
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- temperature heat
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Abstract
The present invention relates to a mixed working medium containing HFC-152a for a medium-high temperature heat pump, particularly to a refrigerant for a medium-high temperature heat pump system at the condensing temperature of 60 to 120DEGC. The mixed working medium is a binary mixture prepared from HFC-152a and HFC-236 fa2 according to different mass ratios and is prepared by physically mixing the components at normal temperature according to determined ratios. The working medium of the present invention has the advantages of no destroy to the ozonosphere, low greenhouse effect, environmental protection, proper hot working parameter and good circulation performance. The medium-high temperature heat pump system of the working medium can be optimized by an HCFC22 air-conditioning compressor and the working medium can be directly applied to an original HCFC22 air-conditioning unit which is converted to the medium-high temperature heat pump unit of the working medium.
Description
The present invention is dividing an application of " one group of moderate and high temperature heat mixing medium ", and the applying date is on January 20th, 2003, and application number is 03100578.0, and invention and created name is " one group of moderate and high temperature heat mixing medium ".
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 that contains HFC-152a, it is characterized in that forming by HFC-152a and HFC-236fa, mass percent is (5-30): (70-95).The basic parameter of each constituent element material is as shown in table 1.
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, and environmental characteristics is good, meets the requirement of protecting ozonosphere.(2) thermal parameter: the evaporating pressure under moderate and high temperature heat design conditions (as 40 ℃ of vaporization temperatures, 90 ℃ of condensing temperatures, 5 ℃ of supercooling temperatures, temperature of superheat appropriateness) about 600.0kPa, condensing pressure about 2000.0kPa, compression ratio about 3.50, exhaust temperature is about 100 ℃.The thermal parameter of contrast HCFC22 under air-conditioning standard condition (7.2 ℃ of vaporization temperatures, 54.4 ℃ of condensing temperatures, 27.8 ℃ of supercooling temperatures, 8.3 ℃ of temperature of superheat) (evaporating pressure is that 626.6kPa, condensing pressure are that 2158.2kPa, compression ratio are 3.44, exhaust temperature be 111.0 ℃) as seen, 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 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
In patent application " one group of moderate and high temperature heat mixing medium ", as ternary mix working medium HFC-152a/HCFC-124/HFC-236fa, but serve as that zero form provides with the HCFC-124 component with binary mixing medium HFC-152a/HFC-236fa.Provide the non-vanishing embodiment of constituent element material HCFC-124 in the ternary mix working medium, be specially and get 23mass%HFC-152a, 24mass%HCFC-124 and 53mass%HFC-236fa, carry out at normal temperatures after the physical mixed as refrigeration agent, specific performance sees Table the embodiment in 2.Experiment shows that binary mixing medium HFC-152a/HFC-236fa performance is good equally.
If the design conditions of heat pump are taken as: average vaporization temperature is 40 ℃, and 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.
Table 2 embodiment performance
| Parameter and performance | Embodiment |
| Evaporating pressure/MPa | 0.620 |
| Condensing pressure/MPa | 2.032 |
| Pressure ratio | 3.28 |
| Exhaust temperature/℃ | 96.4 |
| COP | 4.43 |
| Heat supplied/kJ/kg | 122.1 |
| Unit volume heating capacity/kJ/m 3 | 3769 |
| ODP | 0.004 |
| GWP | 2668 |
Claims (1)
1. moderate and high temperature heat mixing medium that contains HFC-152a is characterized in that working medium is made up of HFC-152a and HFC-236fa, and mass percent is (5-30): (70-95).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03100578 CN1233780C (en) | 2003-01-20 | 2003-01-20 | A group of medium and high temperature heat pump mixed working medium |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03100578 Division CN1233780C (en) | 2003-01-20 | 2003-01-20 | A group of medium and high temperature heat pump mixed working medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1613956A CN1613956A (en) | 2005-05-11 |
| CN100400615C true CN100400615C (en) | 2008-07-09 |
Family
ID=4789859
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| 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 |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100779549A Expired - Fee Related CN100389165C (en) | 2003-01-20 | 2003-01-20 | Tetrachloroethane(HFC134a) containing middle and high temperature heat pump mixed working substance |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| 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 |
Country Status (1)
| Country | Link |
|---|---|
| CN (3) | CN100389165C (en) |
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 (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998008912A1 (en) * | 1996-08-30 | 1998-03-05 | Imperial Chemical Industries Plc | Refrigerant compositions |
| WO1998020089A2 (en) * | 1996-11-04 | 1998-05-14 | E.I. Du Pont De Nemours And Company | Hydrofluorocarbon compositions |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU7470991A (en) * | 1990-03-23 | 1991-10-21 | California Institute Of Technology | Near azeotropic mixture substitute for dichlorodifluoromethane |
| ATE199565T1 (en) * | 1991-12-03 | 2001-03-15 | Us Environment | REFRIGERANT COMPOSITION AND METHOD FOR USE THEREOF |
| US5800729A (en) * | 1995-07-26 | 1998-09-01 | Electric Power Research | Mixtures of pentafluoropropane and a hydrofluorocarbon having 3 to 6 carbon atoms |
| CN1137236C (en) * | 2001-09-11 | 2004-02-04 | 顾雏军 | Improved zeotropic working medium used in thermal circulation |
-
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 (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998008912A1 (en) * | 1996-08-30 | 1998-03-05 | Imperial Chemical Industries Plc | Refrigerant compositions |
| WO1998020089A2 (en) * | 1996-11-04 | 1998-05-14 | E.I. Du Pont De Nemours And Company | Hydrofluorocarbon compositions |
Non-Patent Citations (6)
| Title |
|---|
| 二元物系HFC125/HFC152A的热力学性质研究. 王怀信等.工程热物理学报，第18卷第6期. 1997 |
| 二元物系HFC125/HFC152A的热力学性质研究. 王怀信等.工程热物理学报，第18卷第6期. 1997 * |
| 几种二元混合制冷剂的汽液平衡研究. 王怀信等.高校化学工程学报，第13卷第5期. 1999 |
| 几种二元混合制冷剂的汽液平衡研究. 王怀信等.高校化学工程学报，第13卷第5期. 1999 * |
| 混合工质用作CFC替代品的实践和展望. 郭心正.浙江化工，第29卷第2期. 1998 |
| 混合工质用作CFC替代品的实践和展望. 郭心正.浙江化工，第29卷第2期. 1998 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1629247A (en) | 2005-06-22 |
| CN1233780C (en) | 2005-12-28 |
| CN1425735A (en) | 2003-06-25 |
| CN100389165C (en) | 2008-05-21 |
| CN1613956A (en) | 2005-05-11 |
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Assignee: Tianjin Xinyuan Tianjin-University Heat-Pump Technology Co., Ltd. Assignor: Tianjin University Contract record no.: 2011120000083 Denomination of invention: Medium high temperature heat pump mixed medium containing HFC-152a Granted publication date: 20080709 License type: Exclusive License Open date: 20050511 Record date: 20110628 |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20080709 Termination date: 20130120 |