CN1216959C - Tetra element medium and high temperature refrigerating work medium suitable for normal temperature water source heat pump - Google Patents
Tetra element medium and high temperature refrigerating work medium suitable for normal temperature water source heat pump Download PDFInfo
- Publication number
- CN1216959C CN1216959C CN 03149761 CN03149761A CN1216959C CN 1216959 C CN1216959 C CN 1216959C CN 03149761 CN03149761 CN 03149761 CN 03149761 A CN03149761 A CN 03149761A CN 1216959 C CN1216959 C CN 1216959C
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- CN
- China
- Prior art keywords
- heat pump
- hfc
- high temperature
- tetrafluoroethane
- water source
- Prior art date
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 36
- LVGUZGTVOIAKKC-UHFFFAOYSA-N 1,1,1,2-tetrafluoroethane Chemical compound FCC(F)(F)F LVGUZGTVOIAKKC-UHFFFAOYSA-N 0.000 claims abstract description 25
- 238000005057 refrigeration Methods 0.000 claims abstract description 17
- NNPPMTNAJDCUHE-UHFFFAOYSA-N isobutane Chemical compound CC(C)C NNPPMTNAJDCUHE-UHFFFAOYSA-N 0.000 claims abstract description 12
- BOUGCJDAQLKBQH-UHFFFAOYSA-N 1-chloro-1,2,2,2-tetrafluoroethane Chemical compound FC(Cl)C(F)(F)F BOUGCJDAQLKBQH-UHFFFAOYSA-N 0.000 claims abstract description 8
- NPNPZTNLOVBDOC-UHFFFAOYSA-N 1,1-difluoroethane Chemical compound CC(F)F NPNPZTNLOVBDOC-UHFFFAOYSA-N 0.000 abstract description 8
- MKIWPODDHGBZRV-UHFFFAOYSA-N 1,1,1,3,3,3-hexafluoro-2-methylpropane Chemical compound FC(F)(F)C(C)C(F)(F)F MKIWPODDHGBZRV-UHFFFAOYSA-N 0.000 abstract description 7
- 230000007613 environmental effect Effects 0.000 abstract description 6
- 239000003507 refrigerant Substances 0.000 abstract description 6
- 230000008901 benefit Effects 0.000 abstract description 3
- 229940051271 1,1-difluoroethane Drugs 0.000 abstract 1
- 239000001282 iso-butane Substances 0.000 abstract 1
- 231100000956 nontoxicity Toxicity 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 8
- 238000009835 boiling Methods 0.000 description 5
- 239000007791 liquid phase Substances 0.000 description 5
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 238000009834 vaporization Methods 0.000 description 4
- 230000008016 vaporization Effects 0.000 description 4
- 238000004378 air conditioning Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 238000004781 supercooling Methods 0.000 description 3
- DDMOUSALMHHKOS-UHFFFAOYSA-N 1,2-dichloro-1,1,2,2-tetrafluoroethane Chemical compound FC(F)(Cl)C(F)(F)Cl DDMOUSALMHHKOS-UHFFFAOYSA-N 0.000 description 2
- VOPWNXZWBYDODV-UHFFFAOYSA-N Chlorodifluoromethane Chemical compound FC(F)Cl VOPWNXZWBYDODV-UHFFFAOYSA-N 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- CYRMSUTZVYGINF-UHFFFAOYSA-N trichlorofluoromethane Chemical group FC(Cl)(Cl)Cl CYRMSUTZVYGINF-UHFFFAOYSA-N 0.000 description 2
- XLYOFNOQVPJJNP-PWCQTSIFSA-N Tritiated water Chemical compound [3H]O[3H] XLYOFNOQVPJJNP-PWCQTSIFSA-N 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 125000001153 fluoro group Chemical group F* 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000013535 sea water Substances 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The present invention relates to a quaternary medium-high temperature refrigeration working substance suitable for a normal temperature water source heat pump, particularly to a refrigerant capable of providing medium-high temperature hot water at about 70 DEG C. The refrigerant contains 10 to 90% of 1, 1, 1, 2-tetrafluoroethane(HFC-134a), 6 to 85% of 1-chlorine-1, 2, 2, 2-tetrafluoroethane(HCFC-124), 1 to 5% of isobutane (HC-600a) and 3 to 30% of 1, 1-difluoroethane(HFC-152a). The refrigerant of the present invention completely meets the requirement of environmental protection, has the advantages of no toxicity, incombustibility and good hot working performance and hot working parameter, can directly use normal-temperature water sources at about 30 DEG C, and can be directly used in an HFC-134a heat pump set without changes on the compressor and the main parts of the system. In winter, hot water at about 70 DEG C can be provided for users, and in summer, the needs of the users for air conditioners can be met.
Description
Technical field
The invention belongs to a kind of refrigeration agent, relate to high temperature refrigeration mixing medium in a kind of quaternary that is applicable to the normal temperature water resource heat pump.
Background technology
Water source heat pump technology is to utilize low temperature Lowlevel thermal energy resources such as GEOTHERMAL WATER, underground water, surface water (river, lake water, seawater), trade effluent, and employing heat pump principle, by a spot of electric energy input Lowlevel thermal energy is shifted to high level heat, thereby realize a kind of energy-conserving and environment-protective technology of heating and cooling.Characteristics such as that water resource heat pump has is energy-efficient, stable and reliable operation, obvious environment benefit, a tractor serves several purposes.Since water resource heat pump have higher efficient, again be subjected to hardly envrionment temperature in each in season influence, can effectively utilize characteristics such as the waste heat energy, be a main direction of studying of present refrigeration, air conditioner industry therefore.
The middle and high temperature refrigerant that in the past was used as water resource heat pump usually is CFC-11 and CFC-114 etc.But because CFC-11 and CFC-114 all belong to CFC class material, the latent value ODP of its ozone depletion is respectively 1.0 and 0.85, atmospheric ozone layer there is serious destruction, and the influence of their Greenhouse effect is also very big, its chamber effect potential value GWP is respectively 4600 and 9800, developed country is in forbidding in 1996, and developing country also will be in forbidding in 2010.So it is very necessary developing environment amenable water resource heat pump middle and high temperature refrigerant.
At present, the used working medium of water resource heat pump mostly is fluorine Lyons-22 (HCFC-22) and 1,1,1 greatly, 2-Tetrafluoroethane (HFC-134a), but very high leaving water temperature(LWT) can not be provided.Water resource heat pump often needs to provide the hot water about 70 ℃ if be used for district heating, and the condensing temperature of refrigeration working medium in condenser generally needs more than 75 ℃.Can only arrive 50～55 ℃ and the hot water that common air-conditioning heat pump handpiece Water Chilling Units HCFC-22 commonly used provides is the highest, the hot water that the HFC-134a unit provides is 60～65 ℃, high more then condensing pressure is too high, cycle performance worsens, have a strong impact on the configuration of equipment, system and the pipeline of heat pump set, and heating end equipment commonly used, promptly the heat dissipation capacity of scatterer reduces with hot water temperature's reduction.Therefore need to adopt the higher relatively refrigeration working medium of normal boiling point, promptly so-called middle and high temperature refrigerant to guarantee suitable heating effect, is taken into account the air-conditioning effect simultaneously again.
Summary of the invention
The present invention is intended to research and develop a kind of new working medium of middle high temperature that is applicable to the normal temperature water source heat pump units, makes it can meet the protection ozonosphere, reduces the environmental protection requirement of Greenhouse effect; Have thermal parameter and thermal property preferably again, safety, reliable, and compatible with existing HFC-134a handpiece Water Chilling Units equipment with refrigeration oil, can directly charge, directly utilizing under normal temperature water source (about the 30 ℃) condition, higher leaving water temperature(LWT) (about 70 ℃) is being provided.
This refrigeration working medium provided by the invention, it is characterized in that: this refrigeration working medium contains 1,1,1,2-Tetrafluoroethane (HFC-134a), 1-chloro-1,2,2,2-Tetrafluoroethane (HCFC-124), Trimethylmethane (HC-600a) and 1, four kinds of components of 1-C2H4F2 C2H4F2 (HFC-152a), the mass percentage content of described four kinds of components is respectively:
1,1,1,2-Tetrafluoroethane 10-90%
1-chloro-1,2,2,2-Tetrafluoroethane 6-85%
Trimethylmethane 1-5%%
1,1-C2H4F2 C2H4F2 3-30%%
Refrigeration working medium provided by the invention, its preparation method are above-mentioned various components to be carried out physical mixed by its corresponding mixture ratio get final product under liquid phase state.
In the said components 1,1,1,2-Tetrafluoroethane (HFC-134a), its molecular formula is CH
2FCF
3, molar mass is 102.03, and normal boiling point is-26.1 ℃, and critical temperature is 101.1 ℃, and emergent pressure is 4.06MPa.
1-chloro-1,2,2,2-Tetrafluoroethane (HCFC-124), its molecular formula is CHClFCF
3, molar mass is 136.48, and normal boiling point is-11.96 ℃, and critical temperature is 122.28 ℃, and emergent pressure is 3.624MPa.
Trimethylmethane (HC-600a), its molecular formula are CH (CH
3)
2CH
3, molar mass is 58.12, and normal boiling point is-11.61 ℃, and critical temperature is 134.7 ℃, and emergent pressure is 4.124MPa.
1,1-C2H4F2 C2H4F2 (HFC-152a), its molecular formula is CH
3CHF
2, molar mass is 66.05, and normal boiling point is-24.0 ℃, and critical temperature is 113.3 ℃, and emergent pressure is 4.52MPa.
The present invention has the following advantages and beneficial effect:
A. environmental performance: (ODP) is very little for the ozone layer destroying potential of refrigeration agent of the present invention, approaches zero, and its Greenhouse effect coefficient (GWP) is also very little, is lower than HFC-134a.The present invention meets the protection ozonosphere fully, reduces the environmental protection requirement of Greenhouse effect.
B. thermal parameter: the HFC-134a refrigeration agent is under normal temperature heat pump operating mode (5 ℃ of 27 ℃ of vaporization temperatures, 71 ℃ of condensing temperatures, 5 ℃ of supercooling temperatures and temperature of superheat), and evaporating pressure is that 706.2MPa, condensing pressure are that 2168.3MPa, compression ratio are 3.07, exhaust temperature is 87.9 ℃.And the present invention is when being used for high temperature design conditions (5 ℃ of 25 ℃ of vaporization temperatures, 75 ℃ of condensing temperatures, 5 ℃ of supercooling temperatures and temperature of superheat), evaporating pressure and condensing pressure all with HFC-134a close under normal temperature heat pump operating mode, illustrate that the present invention can directly charge the system in crude HFC-134a, and need not change other parts, higher leaving water temperature(LWT) (about 70 ℃) just can be provided.In addition, 25 ℃ of design conditions vaporization temperatures of the present invention then show and can directly utilize normal temperature water source (about 30 ℃), can utilize more cryogenic water source in off-design behaviour, but and running refrigerating air conditioning condition.
C. thermal property: the present invention is about 4.5 at the heat supply COP under the above-mentioned design conditions, the volume heat supplied is 5000kJ/m
3About, thermal property is better.
In sum, the present invention does not damage the ozone layer substantially, can reduce the Greenhouse effect influence, compliance with environmental protection requirements; And nontoxic, not flammable, thermal property and thermal parameter are all better, can directly utilize the HFC-134a heat pump that middle high-temperature-hot-water (about 70 ℃) is provided, and the major parts in compressor and the system need not changed, and production line need not transformed.
Embodiment
Embodiment 1: the HFC-134a with 10%, 85% HCFC-124,2% HC-600a and 3% HFC-152a carry out physical mixed under liquid phase.
Embodiment 2: the HFC-134a with 90%, 6% HCFC-124,1% HC-600a and 3% HFC-152a carry out physical mixed under liquid phase.
Embodiment 3: the HFC-134a with 35%, 30% HCFC-124,5% HC-600a and 30% HFC-152a carry out physical mixed under liquid phase.
Embodiment 4: the HFC-134a with 60%, 30% HCFC-124,2% HC-600a and 8% HFC-152a carry out physical mixed under liquid phase.
Under design conditions, promptly under 5 ℃ of 25 ℃ of vaporization temperatures, 75 ℃ of condensing temperatures, 5 ℃ of supercooling temperatures and the temperature of superheat, the thermal property of the foregoing description refrigeration working medium is listed in the table 1.Also listed the parameter of HFC-134a in the table 1, to compare now.By table 1 as seen, compare with HFC-134a, condensing pressure is low, exhaust temperature is suitable, COP and heat supplied under the heat supply operating mode are suitable, the volume heat supplied is also about the same except that example 1, illustrate and to utilize existing HFC-134a heat pump set fully, can provide the hot water about 70 ℃ at (about 30 ℃) under the normal temperature water condition, be used to heat or the application scenario of 70 ℃ of left and right sides hot water of other needs, overcome and solved the HFC-134a heat pump set (about 30 ℃) can't provide defectives of 70 ℃ of left and right sides hot water down at the normal temperature water source.In addition, can find out also from table 1 that the GWP of refrigeration agent of the present invention all is lower than HFC-134a, except that example 2, all than the low 50%-75% of the GWP value of HFC-134a, and ODP value is also all near zero, therefore, and the integrated environment better performances.
Table 1 embodiment thermal property and environmental properties
| Embodiment | Example 1 | Example 2 | Example 3 | Example 4 | HFC134a |
| Evaporating pressure kPa | 434.3 | 664.8 | 627.8 | 608.8 | 665.5 |
| Condensing pressure kPa | 1592.3 | 2362.8 | 2204.9 | 2176.7 | 2366.5 |
| Pressure ratio | 3.67 | 3.55 | 3.51 | 3.58 | 3.56 |
| Exhaust temperature ℃ | 87.9 | 93.6 | 94.9 | 93.2 | 93.4 |
| Heat supply COP | 4.219 | 4.057 | 4.081 | 4.083 | 4.090 |
| Heat supplied kJ/kg | 137.66 | 155.92 | 175.41 | 154.72 | 156 |
| Volume heat supplied kJ/m 3 | 3253 | 4692.5 | 4439.5 | 4343.3 | 4740.0 |
| ODP | 0.0026 | 0.0234 | 0.0091 | 0.0156 | 0 |
| GWP | 660.2 | 1210.6 | 676 | 975.2 | 1300 |
Claims (1)
1, a kind of quaternary refrigeration working medium that is applicable to water resource heat pump, it is characterized in that: this refrigeration working medium contains 1,1,1,2-Tetrafluoroethane, 1-chloro-1,2,2,2-Tetrafluoroethane, Trimethylmethane and 1, four kinds of components of 1-C2H4F2 C2H4F2, its mass percentage content is respectively:
1,1,1,2-Tetrafluoroethane 10-90%
1-chloro-1,2,2,2-Tetrafluoroethane 6-85%
Trimethylmethane 1-5%
1,1-C2H4F2 C2H4F2 3-30%
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03149761 CN1216959C (en) | 2003-08-05 | 2003-08-05 | Tetra element medium and high temperature refrigerating work medium suitable for normal temperature water source heat pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03149761 CN1216959C (en) | 2003-08-05 | 2003-08-05 | Tetra element medium and high temperature refrigerating work medium suitable for normal temperature water source heat pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1493642A CN1493642A (en) | 2004-05-05 |
| CN1216959C true CN1216959C (en) | 2005-08-31 |
Family
ID=34240507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03149761 Expired - Fee Related CN1216959C (en) | 2003-08-05 | 2003-08-05 | Tetra element medium and high temperature refrigerating work medium suitable for normal temperature water source heat pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1216959C (en) |
-
2003
- 2003-08-05 CN CN 03149761 patent/CN1216959C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1493642A (en) | 2004-05-05 |
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Granted publication date: 20050831 Termination date: 20160805 |