CN104789192B - Suitable for the novel refrigerant of middle cryogenic freezing refrigerating system - Google Patents
Suitable for the novel refrigerant of middle cryogenic freezing refrigerating system Download PDFInfo
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- CN104789192B CN104789192B CN201510183918.9A CN201510183918A CN104789192B CN 104789192 B CN104789192 B CN 104789192B CN 201510183918 A CN201510183918 A CN 201510183918A CN 104789192 B CN104789192 B CN 104789192B
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- refrigerant
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- cryogenic freezing
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
- C09K5/02—Materials undergoing a change of physical state when used
- C09K5/04—Materials undergoing a change of physical state when used the change of state being from liquid to vapour or vice versa
- C09K5/041—Materials undergoing a change of physical state when used the change of state being from liquid to vapour or vice versa for compression-type refrigeration systems
- C09K5/044—Materials undergoing a change of physical state when used the change of state being from liquid to vapour or vice versa for compression-type refrigeration systems comprising halogenated compounds
- C09K5/045—Materials undergoing a change of physical state when used the change of state being from liquid to vapour or vice versa for compression-type refrigeration systems comprising halogenated compounds containing only fluorine as halogen
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2205/00—Aspects relating to compounds used in compression type refrigeration systems
- C09K2205/10—Components
- C09K2205/12—Hydrocarbons
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2205/00—Aspects relating to compounds used in compression type refrigeration systems
- C09K2205/10—Components
- C09K2205/12—Hydrocarbons
- C09K2205/122—Halogenated hydrocarbons
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2205/00—Aspects relating to compounds used in compression type refrigeration systems
- C09K2205/10—Components
- C09K2205/12—Hydrocarbons
- C09K2205/126—Unsaturated fluorinated hydrocarbons
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
Abstract
The present invention relates to the novel refrigerant suitable for middle cryogenic freezing refrigerating system., can be as the substitute of R507A refrigerants suitable for cryogenic freezing field refrigeration plant in freezer, refrigerator etc., and there is lower GWP value.Novel refrigerant of the present invention, by R32 (difluoromethane), R290 (propane), R134a (1,1,1,2 HFC-134a) and R1234yf (2,3,3,3 tetrafluoropropene) compositions.It is zero that refrigerant of the present invention, which has ODP, GWP value is significantly lower than R507A values, has obvious environment-friendly advantage；Reduced compared to R507A systems filling quantity, the indirect insecurity for reducing leakage of refrigerant；New refrigerant COP improves a lot, and performance advantage is more apparent, has the advantage of energy-saving and emission-reduction.R507A freezing and refrigerating system is may be directly applied to, is not required to do multipart replacing, or only do the change of section components.
Description
Technical field
The invention belongs to low in the novel refrigerant, the freezer that is particularly suitable for use in, refrigerator etc. in middle cryogenic refrigerating system field
Warm freezing and refrigerating system.
Background technology
International community is in September, 2007《Montreal Protocol》In reach acceleration eliminate global warming potential (GWP) compared with
After the decision of high HCFCs class refrigerants, China and the United States deliver jointly again within 2014《Sino-U.S.'s climate change joint statement》, two
State will strengthen bilateral cooperation in terms of starting to cut down the HFC with high global warming potential.For low temperature in freezer, refrigerator etc.
Field of refrigeration, R507A as R502 refrigerants substitute (HFC classes) although excellent in heat transfer property, hypotoxicity etc.
Gesture is obvious, and ODP values are zero, but its GWP value is 3800, still higher, it is clear that it is by the refrigerant replacement of lower GWP value
Matter of time.So in view of environmental problem becomes increasingly conspicuous at present, it is necessary to find the new low GWP suitable for middle cryogenic freezing field
The refrigerant of value.
The content of the invention
It is an object of the invention to provide a kind of novel environment-friendly refrigerant, suitable for cryogenic freezing field in freezer, refrigerator etc.
Refrigeration plant, can be as the substitute of R507A refrigerants, and has lower GWP value.Considering alternative refrigerant
Thermodynamic property, environmental performance and directly perfusion etc. under factor, the present invention proposes quaternary mixture R32/R290/R134a/
Substitutes of the R1234yf as R507A refrigerants.
Novel refrigerant of the present invention, by R32 (difluoromethane), R290 (propane), R134a (1,1,1,2- tetrafluoros
Ethane) and R1234yf (2,3,3,3- tetrafluoropropene) compositions, specific mass percent is as follows：
Preferably, the specific mass percent of each constituent element of novel refrigerant composition of the present invention is as follows：
The preparation method of novel refrigerant of the present invention is that the quality proportioning for specifying four kinds of constituent element materials by it is normal
Temperature is lower to carry out physical mixed.The basic physical property of four kinds of constituent elements such as table 1：
The basic parameter of contained constituent element in 1 novel refrigerant of the present invention of table
Tb：Normal boiling point, Tc：Critical-temperature, Pc：Critical pressure
Beneficial effect
The present invention has advantages below and beneficial effect：
1. with ODP be zero, GWP value be significantly lower than R507A values, there is obvious environment-friendly advantage；
2. reduced compared to R507A systems filling quantity, the indirect insecurity for reducing leakage of refrigerant；
3. comparing R507A, new refrigerant COP improves a lot, and performance advantage is more apparent, has the advantage of energy-saving and emission-reduction.
4. may be directly applied to R507A freezing and refrigerating system, it is not required to do multipart replacing, or only do section components
Change.
The acquirement of this patent can substitute the R507A refrigerants for having higher GWP value as early as possible, for China in middle low temperature cold
Freeze the development of refrigeration field environmental protection refrigerant, and accelerate the superseded significant of high GWP value refrigerant.
Embodiment
The present invention is described in detail with some specific embodiments below.(note：The formula of section Example has certain
Combustibility).
Embodiment 1：1%R32,37%R290,60%R134a, 2%R1234yf are taken, by physics under these four component normal temperature
Refrigerant is used as after mixing.
Embodiment 2：4%R32,60%R290,35%R134a, 1%R1234yf are taken, by physics under these four component normal temperature
Refrigerant is used as after mixing.
Embodiment 3：7%R32,38%R290,46%R134a, 9%R1234yf are taken, by physics under these four component normal temperature
Refrigerant is used as after mixing.
Embodiment 4：12%R32,35%R290,40%R134a, 13%R1234yf are taken, by thing under these four component normal temperature
Refrigerant is used as after reason mixing.
Embodiment 5：19%R32,50%R290,30%R134a, 1%R1234yf are taken, by thing under these four component normal temperature
Refrigerant is used as after reason mixing.
Embodiment 6：35%R32,25%R290,20%R134a, 20%R1234yf are taken, by thing under these four component normal temperature
Refrigerant is used as after reason mixing.
Above-mentioned 6 embodiments have related parameter and cycle performance index as shown in table 2：
The embodiment 1~6 of table 2 is with respect to R507A filling quantities and its compared with R507A GWP value
| Relative molecular mass g/mol | With respect to R507A filling quantities | GWP | |
| R507A | 98.859 | 100% | 3800 |
| Embodiment 1 | 68.311 | 69.10% | 836.65 |
| Embodiment 2 | 55.886 | 56.53% | 520.18 |
| Embodiment 3 | 65.528 | 66.28% | 688.32 |
| Embodiment 4 | 65.342 | 66.10% | 641.49 |
| Embodiment 5 | 55.497 | 56.14% | 557.08 |
| Embodiment 6 | 62.069 | 62.79% | 530.48 |
It is taken as in the design conditions of the refrigeration system of the freezing and refrigerations such as freezer, refrigerator：Accessible compressor low temperature work
Condition (GB10871-89) is taken as：Evaporating temperature=- 23 DEG C, the degree of superheat=28 DEG C, condensation temperature=43 DEG C, degree of supercooling=5 DEG C, meter
Compressor isentropic efficiency is 0.8 during calculation.
The freezing and refrigeration systems such as freezer, refrigerator when theoretical calculation uses above-mentioned embodiment and R507A refrigerants respectively
Cooling system cycle performance parameter, compares performance parameter therein：Evaporating pressure, condensing pressure, pressure ratio, compressor air-discharging temperature
Degree, temperature glide, relative performance coefficient COP and relative unit volume refrigerating capacity compressor qv, as shown in table 3.
As a result show：1. the GWP value of above-described embodiment is substantially less than R507A GWP value, only R507A GWP value
About 1/5, the alternative refrigerant as R507A has obvious advantage in terms of environmental protection；2. sent out by the comparison of filling quantity of refrigerant
It is existing, the filling quantity of new refrigerant relative to R507A, be only about its 56%~70%, the refrigerant that can reduce system accordingly fills
Filling amount, the security of system is improved to a certain extent；3. additionally by performance parameter it was found that, using the whole of new refrigerant
The coefficient of performance of individual system is significantly improved, except the refrigerating effect per unit swept volume of section Example and R507A unit
Volume refrigerating capacity compressor is significantly improved outside, shows that new refrigerant has energy-efficient advantage；4. can also by result of calculation
Find out, new refrigerant is compared with R507A, the refrigerant saturation evaporating pressure, condensing pressure and corresponding pressure ratio of its above-described embodiment
It is more or less the same with the latter.The delivery temperature of the compressor of section Example slightly improves, and most of embodiment is more or less the same.Institute
With from the feasibility demonstrated with upper angle using direct filling type alternative solution.
6 embodiments of the invention of table 3 are compared with R507A performance parameters
Introduced according to the present invention, the freezing and refrigeration refrigeration plant such as freezer, refrigerator under above design conditions, and with
In the range of the preferred proportion of upper theoretical calculation, coefficient of performance COP is significantly improved, and refrigerating effect per unit swept volume connects with R507A
Closely, and system filling quantity has obvious reduction.Outstanding advantage is that the GWP value of new refrigerant significantly reduces compared with R507A.It is comprehensive
On, the present invention has extraordinary application effect and development potentiality.
The environmental protection refrigerant that the present invention is disclosed and proposed, those skilled in the art can suitably be changed by using for reference present disclosure
Become the link such as raw material and process route to realize, although the method and technology of preparing of the present invention are carried out by preferred embodiment
Description, person skilled substantially can not depart from present invention, in spirit and scope to methods and techniques described herein
Route is modified or reconfigured, to realize final technology of preparing.In particular, all similar replacements
Apparent to those skilled in the art with changing, they are considered as being included in spirit of the invention, scope and interior
Rong Zhong.
Claims (2)
1. suitable for the novel refrigerant of middle cryogenic freezing refrigerating system, by R32 (difluoromethane), R290 (propane), R134a
(HFA 134a) and R1234yf (2,3,3,3- tetrafluoropropene) are formed, and specific mass percent is as follows：
2. refrigerant as claimed in claim 1, it is characterized in that the specific mass percent of composition is as follows：
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510183918.9A CN104789192B (en) | 2015-04-17 | 2015-04-17 | Suitable for the novel refrigerant of middle cryogenic freezing refrigerating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510183918.9A CN104789192B (en) | 2015-04-17 | 2015-04-17 | Suitable for the novel refrigerant of middle cryogenic freezing refrigerating system |
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| Publication Number | Publication Date |
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| CN104789192A CN104789192A (en) | 2015-07-22 |
| CN104789192B true CN104789192B (en) | 2018-01-05 |
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| CN201510183918.9A Active CN104789192B (en) | 2015-04-17 | 2015-04-17 | Suitable for the novel refrigerant of middle cryogenic freezing refrigerating system |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107513373A (en) * | 2017-02-22 | 2017-12-26 | 唐建 | A kind of environmental protection refrigerant being applied in air-conditioning/heat pump |
| CN113388370B (en) * | 2021-06-07 | 2022-06-21 | 湖北瑞能华辉能源管理有限公司 | Ternary mixed refrigerant capable of replacing R134a and application thereof |
| CN113388371B (en) * | 2021-06-07 | 2022-06-24 | 湖北瑞能华辉能源管理有限公司 | Quaternary mixed refrigerant capable of replacing R22 or R410a and application thereof |
| CN113980650B (en) * | 2021-11-15 | 2023-09-08 | 太原理工大学 | Refrigerant suitable for preparing cold and hot pump system |
| CN116606632B (en) * | 2023-07-19 | 2023-10-20 | 中科美菱低温科技股份有限公司 | Refrigerant and method for producing the same |
Citations (4)
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|---|---|---|---|---|
| CN102215917A (en) * | 2008-11-19 | 2011-10-12 | 纳幕尔杜邦公司 | Tetrafluoropropene compositions and uses thereof |
| CN102241962A (en) * | 2011-05-06 | 2011-11-16 | 山东东岳化工有限公司 | Composition with low global warming potential (GWP) value |
| CN102635416A (en) * | 2012-04-17 | 2012-08-15 | 浙江大学 | Low-grade thermally-driven Rankine power generation device with ejector |
| EP2832836A1 (en) * | 2012-03-27 | 2015-02-04 | JX Nippon Oil & Energy Corporation | Working fluid composition for refrigerator |
-
2015
- 2015-04-17 CN CN201510183918.9A patent/CN104789192B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102215917A (en) * | 2008-11-19 | 2011-10-12 | 纳幕尔杜邦公司 | Tetrafluoropropene compositions and uses thereof |
| CN102241962A (en) * | 2011-05-06 | 2011-11-16 | 山东东岳化工有限公司 | Composition with low global warming potential (GWP) value |
| EP2832836A1 (en) * | 2012-03-27 | 2015-02-04 | JX Nippon Oil & Energy Corporation | Working fluid composition for refrigerator |
| CN102635416A (en) * | 2012-04-17 | 2012-08-15 | 浙江大学 | Low-grade thermally-driven Rankine power generation device with ejector |
Non-Patent Citations (1)
| Title |
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| REFRIGERANT REPORT 18;THE HEAT OF FRESHNESS;《THE HEAT OF FRESHNESS》;20140930;第25页 * |
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| CN104789192A (en) | 2015-07-22 |
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Address after: 300350 District, Jinnan District, Tianjin Haihe Education Park, 135 beautiful road, Beiyang campus of Tianjin University Patentee after: Tianjin University Address before: 300072 Tianjin City, Nankai District Wei Jin Road No. 92, Tianjin University Patentee before: Tianjin University |