CN107057647A - It is a kind of for refrigerant of air-conditioning and preparation method thereof - Google Patents
It is a kind of for refrigerant of air-conditioning and preparation method thereof Download PDFInfo
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- CN107057647A CN107057647A CN201710476583.9A CN201710476583A CN107057647A CN 107057647 A CN107057647 A CN 107057647A CN 201710476583 A CN201710476583 A CN 201710476583A CN 107057647 A CN107057647 A CN 107057647A
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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
- 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
- C09K5/042—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 compounds containing carbon and hydrogen only
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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
- C09K2205/11—Ethers
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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
-
- 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
Abstract
The invention discloses a kind of refrigerant for air-conditioning, by weight percentage, consist of the following composition：10 ~ 20 parts of pentafluoroethane, 7 ~ 15 parts of Difluoroethane, 1,1,1,23 ~ 15 parts of HFC-134a, 6 ~ 16 parts of propane, 3 ~ 9 parts of ethane, 2,3,3,35 ~ 15 parts of tetrafluoropropenes, 5 ~ 25 parts of dimethyl ether, 1,1,1,25 ~ 55 parts of HFC-134a.A kind of preparation method of refrigerant for air-conditioning comprises the following steps：Pentafluoroethane, Difluoroethane, 1,1 are injected into steel cylinder respectively, 1,2 HFC-134a, propane, ethane, 2,3,3,3 tetrafluoropropenes, dimethyl ether, 1,1,1,2 HFC-134a, 10 ~ 30h is pre-mixed with liquid condition at 45 DEG C ~ 60 DEG C, is then added in the glass reactor of high flux microchannel, the refrigerant for air-conditioning is mixed to get with 10 ~ 50kg/h flow velocitys.The preparation method, simple and easy to apply, obtained refrigerant fluorinated volume rationally, will not destroy atmospheric ozone layer, will not also produce greenhouse effects.
Description
Technical field
The invention belongs to refrigeration technology field, and in particular to a kind of for refrigerant of air-conditioning and preparation method thereof.
Background technology
Air-conditioning is when making refrigerating operaton, and pressurization becomes HTHP after the refrigerant gas of low-temp low-pressure is sucked by compressor
Refrigerant gas, the refrigerant gas of HTHP passes through condenser（General air-conditioning is air-cooled, the i.e. radiating copper of outdoor unit
Pipe）The heat release in outdoor heat exchanger, becomes the liquid of middle temperature high pressure（Heat is taken away by outdoor circulation air）, middle temperature high pressure
Liquid is changed into the liquid of low-temp low-pressure after the decompression of capillary tube swelling again, and the liquid refrigerant of low-temp low-pressure passes through evaporator
（Indoor set copper pipe）It is changed into the gas of low-temp low-pressure after heat absorption evaporation（Room air reaches by the cooled cooling of heat exchanger surface
To the purpose for declining indoor temperature）, the refrigerant gas of low-temp low-pressure is sucked by compressor again, such to circulate.
Generally speaking, air-conditioning refrigerant is exactly that -- one of condensation -- expansion -- evaporation follows for a compression in air-conditioning system
Ring.
At present, widely using due to refrigerant, fluorinated volume is exceeded, causes atmosphere ozone layer to be destroyed.
The content of the invention
In view of the above-mentioned problems, the technical problem to be solved in the present invention is to provide a kind of refrigerant for air-conditioning and its preparation
Method, the refrigerant will not only destroy atmospheric ozone layer, will not also produce greenhouse effects.
To achieve the above object, the technical scheme is that：A kind of refrigerant for air-conditioning, by weight percentage
Meter, is consisted of the following composition：
10 ~ 20 parts of pentafluoroethane, 7 ~ 15 parts of Difluoroethane, 3 ~ 15 parts of HFA 134a, 6 ~ 16 parts of propane, ethane 3 ~ 9
Part, 2,3,3,3- 5 ~ 15 parts of tetrafluoropropenes, 5 ~ 25 parts of dimethyl ether, 5 ~ 55 parts of HFA 134a.
Preferably, by weight percentage, consist of the following composition：10 parts of pentafluoroethane, 7 parts of Difluoroethane, 1,1,1,
3 parts of 2- HFC-134as, 6 parts of propane, 3 parts of ethane, 2,3,3,3- 5 parts of tetrafluoropropenes, 5 parts of dimethyl ether, HFA 134a 5
Part.
Preferably, by weight percentage, consist of the following composition：15 parts of pentafluoroethane, 13 parts of Difluoroethane, 1,1,1,
9 parts of 2- HFC-134as, 10 parts of propane, 6 parts of ethane, 2,3,3,3- 10 parts of tetrafluoropropenes, 15 parts of dimethyl ether, 1,1,1,2- tetrafluoro second
35 parts of alkane.
Preferably, by weight percentage, consist of the following composition：20 parts of pentafluoroethane, 15 parts of Difluoroethane, 1,1,1,
15 parts of 2- HFC-134as, 16 parts of propane, 9 parts of ethane, 2,3,3,3- 15 parts of tetrafluoropropenes, 25 parts of dimethyl ether, 1,1,1,2- tetrafluoro
55 parts of ethane.
A kind of preparation method of refrigerant for air-conditioning, comprises the following steps：
Pentafluoroethane, Difluoroethane, HFA 134a, propane, ethane, 2,3,3,3- tetrafluoros are injected into steel cylinder respectively
Propylene, dimethyl ether, HFA 134a are pre-mixed 10 ~ 30h with liquid condition at -45 DEG C ~ -60 DEG C, are then added to
In the glass reactor of high flux microchannel, the refrigerant for air-conditioning is mixed to get with 10 ~ 50kg/h flow velocitys.
It is preferably, described that into steel cylinder, the order of injection raw material is further respectively：
Pentafluoroethane, Difluoroethane, HFA 134a, propane, ethane, 2,3,3,3- tetrafluoros are implanted sequentially into steel cylinder
Propylene, dimethyl ether, HFA 134a.
It is preferably, described that into steel cylinder, the order of injection raw material is further respectively：
It is implanted sequentially pentafluoroethane into steel cylinder, HFA 134a, 2,3,3,3- tetrafluoropropenes, Difluoroethane, propane,
Ethane, dimethyl ether, HFA 134a.
Preferably, pentafluoroethane is injected into the steel cylinder, Difluoroethane, HFA 134a, propane, ethane,
2,3,3,3- tetrafluoropropenes, dimethyl ether, the solvent volume of HFA 134a are respectively less than the 20% of steel cylinder volume.
Preferably, pentafluoroethane is injected into the steel cylinder, Difluoroethane, HFA 134a, propane, ethane,
2,3,3,3- tetrafluoropropenes, dimethyl ether, the solvent volume of HFA 134a are respectively less than the 30% of steel cylinder volume.
The beneficial effects of the present invention are：The present invention provides a kind of refrigerant for air-conditioning, constitutes the raw material of refrigerant
Macroscopic property be satisfied by the thermodynamic requirement of refrigerant：Critical-temperature is higher, thus easily liquefies at normal temperatures, is adapted to do
Refrigerant, and make the working region of kind of refrigeration cycle away from critical point, and normal boiling point is relatively low, thus can reach it is minimum
Cryogenic temperature is low；Setting temperature is low so that the temperature range of kind of refrigeration cycle is wider, thus the refrigerant scope of application is big；Critical pressure
Power is relatively low, thus the pressure required for liquefaction is relatively low, alleviates the load of compressor, has both reduced the requirement to compressor,
Reduce energy consumption.The preparation method, simple and easy to apply, obtained refrigerant fluorinated volume rationally, will not destroy atmospheric ozone layer, also not
Greenhouse effects can be produced.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to embodiments, to the present invention
It is described in further detail.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, do not limit
The fixed present invention.
Embodiment 1
A kind of refrigerant for air-conditioning, by weight percentage, is consisted of the following composition：10 parts of pentafluoroethane, Difluoroethane 7
Part, 3 parts of HFA 134a, 6 parts of propane, 3 parts of ethane, 2,3,3,3- 5 parts of tetrafluoropropenes, 5 parts of dimethyl ether, 1,1,1,2-
5 parts of HFC-134a.
A kind of preparation method of refrigerant for air-conditioning, comprises the following steps：
Pentafluoroethane, Difluoroethane, HFA 134a, propane, ethane, 2,3,3,3- tetrafluoros are injected into steel cylinder respectively
Propylene, dimethyl ether, HFA 134a are pre-mixed 20h with liquid condition at -45 DEG C ~ -60 DEG C, are then added to height
In the glass reactor of flux microchannel, the refrigerant for air-conditioning is mixed to get with 15kg/h flow velocitys.
It is described that into steel cylinder, the order of injection raw material is further respectively：
Pentafluoroethane, Difluoroethane, HFA 134a, propane, ethane, 2,3,3,3- tetrafluoros are implanted sequentially into steel cylinder
Propylene, dimethyl ether, HFA 134a.
Pentafluoroethane, Difluoroethane, HFA 134a, propane, ethane, 2,3,3,3- are injected into the steel cylinder
Tetrafluoropropene, dimethyl ether, the solvent volume of HFA 134a are respectively less than the 20% of steel cylinder volume.
Embodiment 2
A kind of refrigerant for air-conditioning, by weight percentage, is consisted of the following composition：15 parts of pentafluoroethane, Difluoroethane
13 parts, 9 parts of HFA 134a, 10 parts of propane, 6 parts of ethane, 2,3,3,3- 10 parts of tetrafluoropropenes, 15 parts of dimethyl ether, 1,
1,1,2- 35 parts of HFC-134a.
A kind of preparation method of refrigerant for air-conditioning, comprises the following steps：
Pentafluoroethane, Difluoroethane, HFA 134a, propane, ethane, 2,3,3,3- tetrafluoros are injected into steel cylinder respectively
Propylene, dimethyl ether, HFA 134a are pre-mixed 30h with liquid condition at -45 DEG C ~ -60 DEG C, are then added to height
In the glass reactor of flux microchannel, the refrigerant for air-conditioning is mixed to get with 35kg/h flow velocitys.
It is described that into steel cylinder, the order of injection raw material is further respectively：
It is implanted sequentially pentafluoroethane into steel cylinder, HFA 134a, 2,3,3,3- tetrafluoropropenes, Difluoroethane, propane,
Ethane, dimethyl ether, HFA 134a.
Pentafluoroethane, Difluoroethane, HFA 134a, propane, ethane, 2,3,3,3- are injected into the steel cylinder
Tetrafluoropropene, dimethyl ether, the solvent volume of HFA 134a are respectively less than the 20% of steel cylinder volume.
Embodiment 3
A kind of refrigerant for air-conditioning, by weight percentage, is consisted of the following composition：
20 parts of pentafluoroethane, 15 parts of Difluoroethane, 15 parts of HFA 134a, 16 parts of propane, 9 parts of ethane, 2,3,3,3-
15 parts of tetrafluoropropene, 25 parts of dimethyl ether, 55 parts of HFA 134a.
A kind of preparation method of refrigerant for air-conditioning, comprises the following steps：
Pentafluoroethane, Difluoroethane, HFA 134a, propane, ethane, 2,3,3,3- tetrafluoros are injected into steel cylinder respectively
Propylene, dimethyl ether, HFA 134a are pre-mixed 10h with liquid condition at -45 DEG C ~ -60 DEG C, are then added to height
In the glass reactor of flux microchannel, the refrigerant for air-conditioning is mixed to get with 50kg/h flow velocitys.
It is described that into steel cylinder, the order of injection raw material is further respectively：
It is implanted sequentially pentafluoroethane into steel cylinder, HFA 134a, 2,3,3,3- tetrafluoropropenes, Difluoroethane, propane,
Ethane, dimethyl ether, HFA 134a.
Pentafluoroethane, Difluoroethane, HFA 134a, propane, ethane, 2,3,3,3- are injected into the steel cylinder
Tetrafluoropropene, dimethyl ether, the solvent volume of HFA 134a are respectively less than the 30% of steel cylinder volume.
Embodiment 4
A kind of refrigerant for air-conditioning, by weight percentage, is consisted of the following composition：
13 parts of pentafluoroethane, 10 parts of Difluoroethane, 6 parts of HFA 134a, 10 parts of propane, 4 parts of ethane, 2,3,3,3- tetra-
10 parts of fluoropropene, 7 parts of dimethyl ether, 35 parts of HFA 134a.
A kind of preparation method of refrigerant for air-conditioning, comprises the following steps：
Pentafluoroethane, Difluoroethane, HFA 134a, propane, ethane, 2,3,3,3- tetrafluoros are injected into steel cylinder respectively
Propylene, dimethyl ether, HFA 134a are pre-mixed 10h with liquid condition at -45 DEG C ~ -60 DEG C, are then added to height
In the glass reactor of flux microchannel, the refrigerant for air-conditioning is mixed to get with 40kg/h flow velocitys.
It is described that into steel cylinder, the order of injection raw material is further respectively：
Pentafluoroethane, Difluoroethane, HFA 134a, propane, ethane, 2,3,3,3- tetrafluoros are implanted sequentially into steel cylinder
Propylene, dimethyl ether, HFA 134a.
Pentafluoroethane, Difluoroethane, HFA 134a, propane, ethane, 2,3,3,3- are injected into the steel cylinder
Tetrafluoropropene, dimethyl ether, the solvent volume of HFA 134a are the 10% of steel cylinder volume.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, although with reference to foregoing reality
Apply example the present invention is described in detail, for those skilled in the art, it still can be to foregoing each implementation
Technical scheme described in example is modified, or carries out equivalent substitution to which part technical characteristic.All essences in the present invention
God is with principle, and any modification, equivalent substitution and improvements made etc. should be included in the scope of the protection.
Claims (9)
1. a kind of refrigerant for air-conditioning, it is characterised in that by weight percentage, consist of the following composition：
10 ~ 20 parts of pentafluoroethane, 7 ~ 15 parts of Difluoroethane, 3 ~ 15 parts of HFA 134a, 6 ~ 16 parts of propane, ethane 3 ~ 9
Part, 2,3,3,3- 5 ~ 15 parts of tetrafluoropropenes, 5 ~ 25 parts of dimethyl ether, 5 ~ 55 parts of HFA 134a.
2. a kind of refrigerant for air-conditioning according to claim 1, it is characterised in that by weight percentage, by with
Lower composition composition：10 parts of pentafluoroethane, 7 parts of Difluoroethane, 3 parts of HFA 134a, 6 parts of propane, 3 parts of ethane, 2,3,
3,3- 5 parts of tetrafluoropropenes, 5 parts of dimethyl ether, 5 parts of HFA 134a.
3. a kind of refrigerant for air-conditioning according to claim 1, it is characterised in that by weight percentage, by with
Lower composition composition：15 parts of pentafluoroethane, 13 parts of Difluoroethane, 9 parts of HFA 134a, 10 parts of propane, 6 parts of ethane, 2,
3,3,3- 10 parts of tetrafluoropropenes, 15 parts of dimethyl ether, 35 parts of HFA 134a.
4. a kind of refrigerant for air-conditioning according to claim 1, it is characterised in that by weight percentage, by with
Lower composition composition：20 parts of pentafluoroethane, 15 parts of Difluoroethane, 15 parts of HFA 134a, 16 parts of propane, 9 parts of ethane, 2,
3,3,3- 15 parts of tetrafluoropropenes, 25 parts of dimethyl ether, 55 parts of HFA 134a.
5. the preparation method of a kind of refrigerant for air-conditioning, it is characterised in that comprise the following steps：
Pentafluoroethane, Difluoroethane, HFA 134a, propane, ethane, 2,3,3,3- tetrafluoros are injected into steel cylinder respectively
Propylene, dimethyl ether, HFA 134a are pre-mixed 10 ~ 30h with liquid condition at -45 DEG C ~ -60 DEG C, are then added to
In the glass reactor of high flux microchannel, the refrigerant for air-conditioning is mixed to get with 10 ~ 50kg/h flow velocitys.
6. a kind of preparation method of refrigerant for air-conditioning according to claim 5, it is characterised in that it is described respectively to
The order of injection raw material is further in steel cylinder：
Pentafluoroethane, Difluoroethane, HFA 134a, propane, ethane, 2,3,3,3- tetrafluoros are implanted sequentially into steel cylinder
Propylene, dimethyl ether, HFA 134a.
7. a kind of preparation method for air-conditioning refrigerant according to claim 5, it is characterised in that described respectively to steel
The order of injection raw material is further in bottle：
It is implanted sequentially pentafluoroethane into steel cylinder, HFA 134a, 2,3,3,3- tetrafluoropropenes, Difluoroethane, propane,
Ethane, dimethyl ether, HFA 134a.
8. a kind of preparation method for air-conditioning refrigerant according to claim 5, it is characterised in that into the steel cylinder
Injection pentafluoroethane, Difluoroethane, HFA 134a, propane, ethane, 2,3,3,3- tetrafluoropropenes, dimethyl ether, 1,1,
The solvent volume of 1,2- HFC-134a is respectively less than the 20% of steel cylinder volume.
9. a kind of preparation method for air-conditioning refrigerant according to claim 5, it is characterised in that into the steel cylinder
Injection pentafluoroethane, Difluoroethane, HFA 134a, propane, ethane, 2,3,3,3- tetrafluoropropenes, dimethyl ether, 1,1,
The solvent volume of 1,2- HFC-134a is respectively less than the 30% of steel cylinder volume.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710476583.9A CN107057647A (en) | 2017-06-21 | 2017-06-21 | It is a kind of for refrigerant of air-conditioning and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710476583.9A CN107057647A (en) | 2017-06-21 | 2017-06-21 | It is a kind of for refrigerant of air-conditioning and preparation method thereof |
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| CN107057647A true CN107057647A (en) | 2017-08-18 |
Family
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| CN201710476583.9A Withdrawn CN107057647A (en) | 2017-06-21 | 2017-06-21 | It is a kind of for refrigerant of air-conditioning and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108728044A (en) * | 2018-06-13 | 2018-11-02 | 华北电力大学（保定） | A kind of mix refrigerant and preparation method thereof |
| CN112739790A (en) * | 2018-10-04 | 2021-04-30 | 科慕埃弗西有限公司 | Azeotropic compositions of HFO-1234YF and hydrocarbons |
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| CN101671542A (en) * | 2009-09-29 | 2010-03-17 | 山东东岳化工有限公司 | Refrigerant composition |
| CN102676119A (en) * | 2012-05-24 | 2012-09-19 | 浙江大学 | Refrigerant with low GWP (global warming potential) and preparation method thereof |
| CN102703033A (en) * | 2012-05-24 | 2012-10-03 | 浙江大学 | Environment-friendly refrigerant and preparation method thereof |
| CN103289648A (en) * | 2013-05-06 | 2013-09-11 | 陈振乐 | Environmentally-friendly energy-saving refrigerant capable of substituting R134a |
| CN103436239A (en) * | 2013-09-10 | 2013-12-11 | 浙江永和制冷股份有限公司 | Refrigerant and preparation method thereof |
-
2017
- 2017-06-21 CN CN201710476583.9A patent/CN107057647A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101671542A (en) * | 2009-09-29 | 2010-03-17 | 山东东岳化工有限公司 | Refrigerant composition |
| CN102676119A (en) * | 2012-05-24 | 2012-09-19 | 浙江大学 | Refrigerant with low GWP (global warming potential) and preparation method thereof |
| CN102703033A (en) * | 2012-05-24 | 2012-10-03 | 浙江大学 | Environment-friendly refrigerant and preparation method thereof |
| CN103289648A (en) * | 2013-05-06 | 2013-09-11 | 陈振乐 | Environmentally-friendly energy-saving refrigerant capable of substituting R134a |
| CN103436239A (en) * | 2013-09-10 | 2013-12-11 | 浙江永和制冷股份有限公司 | Refrigerant and preparation method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108728044A (en) * | 2018-06-13 | 2018-11-02 | 华北电力大学（保定） | A kind of mix refrigerant and preparation method thereof |
| CN112739790A (en) * | 2018-10-04 | 2021-04-30 | 科慕埃弗西有限公司 | Azeotropic compositions of HFO-1234YF and hydrocarbons |
| CN112739790B (en) * | 2018-10-04 | 2022-03-29 | 科慕埃弗西有限公司 | Azeotropic compositions of HFO-1234YF and hydrocarbons |
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