CN1563253A - A group of mixed working media containing HFCs for high temperature heat pump - Google Patents
A group of mixed working media containing HFCs for high temperature heat pump Download PDFInfo
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- CN1563253A CN1563253A CN 200410018829 CN200410018829A CN1563253A CN 1563253 A CN1563253 A CN 1563253A CN 200410018829 CN200410018829 CN 200410018829 CN 200410018829 A CN200410018829 A CN 200410018829A CN 1563253 A CN1563253 A CN 1563253A
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Abstract
A group of mixed working media being used suitably as refrigerant of heat pump system with condensing temperature of 100-140 deg.C, contains six component materials of HFC 134a, HFC 152a, R1311, HFC 143, HFC 236 fa and HFC 245 fa. The six compound materials can be formed to be binary and ternary mixture according to different mass ratio and its preparing process is to carry out physical mixing of abovesaid component materials as per appointed ratio at ordinary temp to forming relevant mixed working media.
Description
Technical field
The invention belongs to the refrigeration agent in heat pump or refrigeration, the air-conditioning system, referring more particularly to as condensing temperature is refrigeration working medium in 100-140 ℃ the high temperature heat pump system.
Background technology
For produce and life in a large amount of that exist, to heat energy grade requirement relatively low (temperature is 60-160 ℃) with can link, adopt the heat pump heat supply technology that the total energy utilising efficiency higher than conventional energy-provision way not only arranged, minimizing CO
2Discharging (thereby reducing Greenhouse effect) also can effectively utilize the low grade heat energy that contains in industrial exhaust heat, Geothermal energy, sun power and the environment (air, soil, surface water or shallow ground water), reduces the thermal pollution that the waste heat discharging causes.Current, 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, and restrict one of key issue of its development, are exactly to lack the cycle fluid that is fit to.The material that in the past once was used as high temperature heat pump system working medium has CFC11, CFC113, CFC114 etc., they are CFC class material, 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.What application was more at present is the air-conditioning-heat pump of working medium with HCFC22 or its surrogate R407C, R410A etc., the hot water top temperature that can provide is 50-55 ℃, and (the high again cycle performance that not only makes of temperature worsens, if surpassing the pressure and the warm upper limit of row of system causes the accident easily), 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 high temperature heat pump technology.
Mixing medium provided by the invention is for condensing temperature is that 100-140 ℃ high temperature heat pump system is used and to be 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 one group and be suitable for the new working medium that the high temperature heat pump unit is used, make its environmental characteristics and cycle performance all good.
Content introduction of the present invention: one group of high-temperature heat pump mixed working medium that contains HFCs (hydrogen fluorohydrocarbon class), contain CF3I (R13I1), 1,1,1,2-Tetrafluoroethane (HFC134a), 1,1,2-Halothane (HFC143), 1,1-C2H4F2 C2H4F2 (HFC152a), 1,1,1,3,3,3-hexafluoroethane (HFC236fa), 1,1,1,3,3-pentafluoropropane (HFC245fa) waits the constituent element material, and the basic parameter of each constituent element material is as shown in table 1.By HFC134a, HFC152a, HFC245fa forms the high-temperature heat pump mixed working medium-1 that contains HFCs, by HFC134a, R13I1, HFC245fa forms the high-temperature heat pump mixed working medium-2 that contains HFCs, by HFC152a, R13I1, HFC245fa forms the high-temperature heat pump mixed working medium-3 that contains HFCs, by HFC134a, HFC236fa, HFC245fa forms the high-temperature heat pump mixed working medium-4 that contains HFCs, by HFC152a, HFC236fa, HFC245fa forms the high-temperature heat pump mixed working medium-5 that contains HFCs, by R13I1, HFC236fa, HFC245fa forms the high-temperature heat pump mixed working medium-6 that contains HFCs, by HFC134a, HFC143, HFC245fa forms the high-temperature heat pump mixed working medium-7 that contains HFCs, by HFC152a, HFC143, HFC245fa forms the high-temperature heat pump mixed working medium-8 that contains HFCs, by R13I1, HFC143, HFC245fa forms the high-temperature heat pump mixed working medium-9 that contains HFCs, by HFC236fa, HFC143, HFC245fa forms the high-temperature heat pump mixed working medium-10 that contains HFCs.
The concrete proportioning (mass percent) of above-mentioned each mixing medium is:
HFC134a/HFC152a/HFC245fa (high-temperature heat pump mixed working medium-1 that contains HFCs, when comprising HFC152a and be zero component, HFC134a/HFC245fa is the binary mixing medium; ): 2-50/0-35/50-98%,
HFC134a/R13I1/HFC245fa (high-temperature heat pump mixed working medium-2 that contains HFCs, when comprising HFC134a and be zero component, R13I1/HFC245fa is the binary mixing medium): 0-45/3-60/40-97%,
HFC152a/R13I1/HFC245fa (high-temperature heat pump mixed working medium-3 that contains HFCs, when comprising R13I1 and be zero component, HFC152a/HFC245fa is the binary mixing medium): 2-40/0-50/48-98%,
HFC134a/HFC236fa/HFC245fa (high-temperature heat pump mixed working medium-4 that contains HFCs, when comprising HFC134a and be zero component, HFC236fa/HFC245fa is the binary mixing medium): 0-45/2-70/30-98%,
HFC152a/HFC236fa/HFC245fa (high-temperature heat pump mixed working medium-5 that contains HFCs): 1-30/2-68/31-97%,
R13I1/HFC236fa/HFC245fa (high-temperature heat pump mixed working medium-6 that contains HFCs): 2-50/2-67/31-96%,
HFC134a/HFC143/HFC245fa (high-temperature heat pump mixed working medium-7 that contains HFCs, when comprising HFC134a and be zero component, HFC143/HFC245fa is the binary mixing medium): 0-48/2-45/50-98%,
HFC152a/HFC143/HFC245fa (high-temperature heat pump mixed working medium-8 that contains HFCs): 1-39/2-40/59-97%,
R13I1/HFC143/HFC245fa (high-temperature heat pump mixed working medium-9 that contains HFCs): 2-54/1-38/45-97%,
HFC236fa/HFC143/HFC245fa (high-temperature heat pump mixed working medium-10 that contains HFCs): 2-48/2-40/12-96%.
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) compliance with environmental protection requirements: ODP of the present invention equals zero, and the GWP in most mixing mediums is lower, and as seen its environmental characteristics is good, meets the requirement of protecting ozonosphere, reducing Greenhouse effect.(2) thermal parameter is suitable: under the high temperature heat pump design conditions, and close under the standard air conditioning condition of stress level and HCFC22, row's temperature is lower than row's temperature of HCFC22 compressor and limits.Therefore, can adopt the compressor of air conditioner of HCFC22 in the high temperature heat pump system design, need not to be working medium of the present invention specialized designs compressor separately.(3) cycle performance is good: the heat supply COP of the present invention under the high temperature heat pump design conditions substantially more than 4.0, the unit mass heat supplied substantially about 110kJ/kg, the unit volume heat supplied is at 4000kJ/m
3About, cycle performance is good.The interchanger load is close with the HCFC22 air-conditioning system, working medium of the present invention directly can be poured into (some working medium requires more oil change) air conditioning unit in existing HCFC22, be translated into the high temperature heat pump unit of new working medium, efficiency and unit main hardware matching degree can guarantee to circulate.
The basic parameter of contained constituent element in table 1 high-temperature heat pump mixed working medium
T
b: normal boiling point, T
c: critical temperature, P
c: emergent pressure
Molecule T
bT
cP
c
Constituent element title molecular formula ODP GWP
Amount ℃ ℃ MPa
R13I1 CF3I CF
3I 195.9-21.83 123.29 3.953 0 700
HFC134a???1，1，1，2-?????????CF
3CH
2F????102.03???-26.15???101.06???4.056????0????1300
Tetrafluoroethane
HFC143 1,1,2-Halothane CH
2FCHF
284.02 5.00 157.80 4.233 0-
HFC152a???1，1-???????????????CHF
2CH
3????66.05????-24.15???113.29???4.520????0????150
C2H4F2 C2H4F2
HFC236fa??1，1，1，3，3，3-???CF
3CH
2CF
3?152.01???-1.11????130.60???3.177????0????6300
HFC-236fa
HFC245fa 1,1,1,3,3-five fluorine CF
3CH
2CHF
2134.0 15.30 157.50 3.644 0 790
Propane
Embodiment
Embodiment 1: get 4
Mass%HFC134a, 1
Mass%HFC152a, 95
Mass%HFC245fa carries out after the physical mixed at normal temperatures as refrigeration agent.
Embodiment 2: get 23
Mass%R13I1,77
Mass%HFC245fa carries out after the physical mixed at normal temperatures as refrigeration agent.
Embodiment 3: get 3
Mass%HFC152a, 14
Mass%R13I1,83
Mass%HFC245fa carries out after the physical mixed at normal temperatures as refrigeration agent.
Embodiment 4: get 6
Mass%HFC134a, 14
Mass%HFC236fa, 80
Mass%HFC245fa carries out after the physical mixed at normal temperatures as refrigeration agent.
Embodiment 5: get 4
Mass%HFC152a, 17
Mass%HFC236fa, 79
Mass%HFC245fa carries out after the physical mixed at normal temperatures as refrigeration agent.
Embodiment 6: get 14
Mass%R13I1,11
Mass%HFC236fa, 75
Mass%HFC245fa carries out after the physical mixed at normal temperatures as refrigeration agent.
Embodiment 7: get 4
Mass%HFC134a, 10
Mass%HFC143,86
Mass%HFC245fa carries out after the physical mixed at normal temperatures as refrigeration agent.
Embodiment 8: get 3
Mass% HFC152a, 10
Mass% HFC143,87
Mass%HFC245fa carries out after the physical mixed at normal temperatures as refrigeration agent.
Embodiment 9: get 15
Mass%R13I1,13
Mass%HFC143,72
Mass%HFC245fa carries out after the physical mixed at normal temperatures as refrigeration agent.
Embodiment 10: get 13
Mass%HFC236fa, 21
Mass%HFC143,66
Mass%HFC245fa carries out after the physical mixed at normal temperatures as refrigeration agent.
If the design conditions of heat pump are taken as: average vaporization temperature is 70 ℃, average condensing temperature is 120 ℃, the suction superheat temperature be 5 ℃ (to some working medium, get suitable exhaust superheating temperature to guarantee to avoid wet compression,), supercooling temperature is 5 ℃, it is 75% that compression process is decided entropic efficiency, according to cycle calculations, above-mentioned 10 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 | Embodiment 5 |
| Evaporating pressure MPa | ????0.626 | ????0.668 | ??0.663 | ??0.669 | ??0.674 |
| Condensing pressure MPa | ????1.981 | ????2.066 | ??2.068 | ??2.101 | ??2.103 |
| Pressure ratio | ????3.16 | ????3.09 | ??3.12 | ??3.14 | ??3.12 |
| Exhaust temperature ℃ | ????126.1 | ????126.0 | ??126.2 | ??126.4 | ??126.1 |
| ???COP | ????4.13 | ????4.07 | ??4.08 | ??4.02 | ??4.01 |
| Heat supplied kJ/kg | ????120.1 | ????104.4 | ??111.8 | ??112.8 | ??113.8 |
| Unit volume heating capacity kJ/m 3 | ????3890 | ????4014 | ??4026 | ??3990 | ??3994 |
| ???GWP | ????803 | ????775 | ??749 | ??1492 | ??1565 |
| Parameter and performance | Embodiment 6 | Embodiment 7 | Embodiment 8 | Embodiment 9 | Embodiment 10 |
| Evaporating pressure MPa | ??0.661 | ??0.639 | ??0.637 | ??0.666 | ??0.661 |
| Condensing pressure MPa | ??2.043 | ??1.997 | ??1.984 | ??2.043 | ??2.018 |
| Pressure ratio | ??3.09 | ??3.13 | ??3.12 | ??3.07 | ??3.05 |
| Exhaust temperature ℃ | ??125.7 | ??125.9 | ??125.7 | ??125.7 | ??125.3 |
| ???COP | ??4.05 | ??4.15 | ??4.16 | ??4.13 | ??4.13 |
| Heat supplied kJ/kg | ??105.6 | ??125.5 | ??127.5 | ??116.8 | ??125.3 |
| Unit volume heating capacity kJ/m 3 | ??3927 | ??3962 | ??3952 | ??4054 | ??3995 |
| ???GWP | ??1332 | ??- | ??- | ??- | ??- |
Claims (2)
1. one group of high-temperature heat pump mixed working medium that contains HFCs, contain CF3I (R13I1), 1,1,1,2-Tetrafluoroethane (HFC134a), 1,1,2-Halothane (HFC143), 1,1-C2H4F2 C2H4F2 (HFC152a), 1,1,1,3,3,3-hexafluoroethane (HFC236fa), 1,1,1,3,3-pentafluoropropane constituent element materials such as (HFC245fa) is characterized in that by HFC134a, HFC152a, HFC245fa forms the high-temperature heat pump mixed working medium-1 that contains HFCs, by HFC134a, R13I1, HFC245fa forms the high-temperature heat pump mixed working medium-2 that contains HFCs, by HFC152a, R13I1, HFC245fa forms the high-temperature heat pump mixed working medium-3 that contains HFCs, by HFC134a, HFC236fa, HFC245fa forms the high-temperature heat pump mixed working medium-4 that contains HFCs, by HFC152a, HFC236fa, HFC245fa forms the high-temperature heat pump mixed working medium-5 that contains HFCs, by R13I1, HFC236fa, HFC245fa forms the high-temperature heat pump mixed working medium-6 that contains HFCs, by HFC134a, HFC143, HFC245fa forms the high-temperature heat pump mixed working medium-7 that contains HFCs, by HFC152a, HFC143, HFC245fa forms the high-temperature heat pump mixed working medium-8 that contains HFCs, by R13I1, HFC143, HFC245fa forms the high-temperature heat pump mixed working medium-9 that contains HFCs, by HFC236fa, HFC143, HFC245fa forms the high-temperature heat pump mixed working medium-10 that contains HFCs.
2. according to the described high-temperature heat pump mixed working medium that contains HFCs of claim 1, it is characterized in that the concrete proportioning (mass percent) of above-mentioned various constituent element materials is:
HFC134a/HFC152a/HFC245fa (high-temperature heat pump mixed working medium-1 that contains HFCs, when comprising HFC152a and be zero component, HFC134a/HFC245fa is the binary mixing medium; ): 2-50/0-35/50-98%,
HFC134a/R13I1/HFC245fa (high-temperature heat pump mixed working medium-2 that contains HFCs, when comprising HFC134a and be zero component, R13I1/HFC245fa is the binary mixing medium): 0-45/3-60/40-97%,
HFC152a/R13I1/HFC245fa (high-temperature heat pump mixed working medium-3 that contains HFCs, when comprising R13I1 and be zero component, HFC152a/HFC245fa is the binary mixing medium): 2-40/0-50/48-98%,
HFC134a/HFC236fa/HFC245fa (high-temperature heat pump mixed working medium-4 that contains HFCs, when comprising HFC134a and be zero component, HFC236fa/HFC245fa is the binary mixing medium): 0-45/2-70/30-98%,
HFC152a/HFC236fa/HFC245fa (high-temperature heat pump mixed working medium-5 that contains HFCs): 1-30/2-68/31-97%,
R13I1/HFC236fa/HFC245fa (high-temperature heat pump mixed working medium-6 that contains HFCs): 2-50/2-67/31-96%,
HFC134a/HFC143/HFC245fa (high-temperature heat pump mixed working medium-7 that contains HFCs, when comprising HFC134a and be zero component, HFC143/HFC245fa is the binary mixing medium): 0-48/245/50-98%,
HFC152a/HFC143/HFC245fa (high-temperature heat pump mixed working medium-8 that contains HFCs): 1-39/2-40/59-97%,
R13I1/HFC143/HFC245fa (high-temperature heat pump mixed working medium-9 that contains HFCs): 2-54/1-38/45-97%,
HFC236fa/HFC143/HFC245fa (high-temperature heat pump mixed working medium-10 that contains HFCs): 2-48/2-40/12-96%.
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| CN 200410018829 CN1563253A (en) | 2004-04-05 | 2004-04-05 | A group of mixed working media containing HFCs for high temperature heat pump |
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| CN 200410018829 CN1563253A (en) | 2004-04-05 | 2004-04-05 | A group of mixed working media containing HFCs for high temperature heat pump |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102127397A (en) * | 2011-01-19 | 2011-07-20 | 天津大学 | Mixed working medium for organic working medium rankine cycle system of screw expander |
| CN112867774A (en) * | 2018-10-15 | 2021-05-28 | 霍尼韦尔国际公司 | Azeotrope or azeotrope-like composition of trifluoroiodomethane (CF3I) and 1,1,1,3,3, 3-hexafluoropropane (HFC-236fa) |
-
2004
- 2004-04-05 CN CN 200410018829 patent/CN1563253A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102127397A (en) * | 2011-01-19 | 2011-07-20 | 天津大学 | Mixed working medium for organic working medium rankine cycle system of screw expander |
| CN112867774A (en) * | 2018-10-15 | 2021-05-28 | 霍尼韦尔国际公司 | Azeotrope or azeotrope-like composition of trifluoroiodomethane (CF3I) and 1,1,1,3,3, 3-hexafluoropropane (HFC-236fa) |
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