CN113150745B - Ternary environment-friendly mixed refrigerant, preparation method thereof and refrigeration system - Google Patents
Ternary environment-friendly mixed refrigerant, preparation method thereof and refrigeration system Download PDFInfo
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- 239000003507 refrigerant Substances 0.000 title claims abstract description 75
- 238000005057 refrigeration Methods 0.000 title claims abstract description 13
- 238000002360 preparation method Methods 0.000 title abstract description 7
- RWRIWBAIICGTTQ-UHFFFAOYSA-N difluoromethane Chemical group FCF RWRIWBAIICGTTQ-UHFFFAOYSA-N 0.000 claims abstract description 76
- MIZLGWKEZAPEFJ-UHFFFAOYSA-N 1,1,2-trifluoroethene Chemical group FC=C(F)F MIZLGWKEZAPEFJ-UHFFFAOYSA-N 0.000 claims abstract description 37
- JRHMNRMPVRXNOS-UHFFFAOYSA-N trifluoro(methoxy)methane Chemical compound COC(F)(F)F JRHMNRMPVRXNOS-UHFFFAOYSA-N 0.000 claims abstract description 21
- 239000007791 liquid phase Substances 0.000 claims abstract description 11
- 238000002156 mixing Methods 0.000 claims abstract description 7
- 238000003756 stirring Methods 0.000 claims abstract description 3
- 238000000034 method Methods 0.000 claims description 4
- NPNPZTNLOVBDOC-UHFFFAOYSA-N 1,1-difluoroethane Chemical group CC(F)F NPNPZTNLOVBDOC-UHFFFAOYSA-N 0.000 abstract description 29
- 229940051271 1,1-difluoroethane Drugs 0.000 abstract description 19
- 230000000052 comparative effect Effects 0.000 description 24
- 230000007613 environmental effect Effects 0.000 description 9
- 239000000203 mixture Substances 0.000 description 5
- 239000000126 substance Substances 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- GTLACDSXYULKMZ-UHFFFAOYSA-N pentafluoroethane Chemical compound FC(F)C(F)(F)F GTLACDSXYULKMZ-UHFFFAOYSA-N 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000036314 physical performance Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000004781 supercooling Methods 0.000 description 1
- 239000012808 vapor phase Substances 0.000 description 1
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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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- 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
- C09K2205/112—Halogenated 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
- 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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- 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
- C09K2205/22—All components of a mixture being fluoro compounds
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- 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
- C09K2205/40—Replacement mixtures
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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
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract
The application relates to the technical field of refrigerants, in particular to a ternary environment-friendly mixed refrigerant, a preparation method of the ternary environment-friendly mixed refrigerant and a refrigeration system. The ternary environment-friendly mixed refrigerant comprises a first component, a second component and a third component, wherein the first component is difluoromethane, the second component is trifluoroethylene, the third component is 1, 1-difluoroethane or trifluoromethyl methyl ether, and the GWP value of the ternary environment-friendly mixed refrigerant is less than 450. The preparation method of the ternary environment-friendly mixed refrigerant comprises the following steps: and mixing and stirring the first component, the second component and the third component in a room-temperature liquid-phase state to obtain the ternary environment-friendly mixed refrigerant. The ternary environment-friendly mixed refrigerant not only has the environment-friendly characteristic of low GWP, and the system performance coefficient is similar to that of R410A, but also can improve the refrigerating capacity per unit volume to a certain extent, and can better replace the R410A refrigerant.
Description
Technical Field
The application relates to the technical field of refrigerants, in particular to a ternary environment-friendly mixed refrigerant, a preparation method of the ternary environment-friendly mixed refrigerant and a refrigeration system.
Background
Refrigeration technology is one of engineering technical achievements which have great influence on human society in the twenty-first century, but under two major pressures of 'environmental protection' and 'energy conservation', the refrigerant becomes a bottleneck of refrigeration technology development, the 28 th contracting party conference of 'montreal protocol' in 10 months in 2016 reaches 'basal galileo amendment' and 18 Hydrofluorocarbon (HFCs) substances are listed in a controlled list, and the refrigerant with high-temperature chamber effect potential (GWP) is about to be replaced. R410A is a refrigerant commonly used for household air conditioners, which is a mixture of two kinds of hydrofluorocarbons, difluoromethane (R32) and pentafluoroethane (R125), having a GWP of 1924, and has been restricted in use in developed countries such as Europe and Japan due to its higher GWP. Therefore, it is necessary to develop a new refrigerant to replace R410A, and to obtain excellent environmental protection performance while maintaining thermal performance.
Disclosure of Invention
In order to solve the technical problem of poor environmental protection performance of R410a in the prior art, the invention provides a novel environment-friendly mixed refrigerant, which is carefully screened from multiple dimensions of environmental protection, safety, physical properties, performance and economy of the refrigerant to form a substitute refrigerant which has lower GWP, higher safety and equivalent thermodynamic performance compared with R410a, and provides a preparation method of the environment-friendly mixed refrigerant and a refrigeration system using the refrigerant.
In order to achieve the above object, according to a first aspect of the present invention, there is provided a ternary environment-friendly mixed refrigerant.
The ternary environment-friendly mixed refrigerant comprises a first component, a second component and a third component, wherein the first component is difluoromethane, the second component is trifluoroethylene, the third component is 1, 1-difluoroethane or trifluoromethyl methyl ether, and the GWP value of the ternary environment-friendly mixed refrigerant is less than 450.
Further, the ternary environment-friendly mixed refrigerant comprises 4-72% of difluoromethane, 16-88% of trifluoroethylene and 4-24% of 1, 1-difluoroethane in percentage by mole.
Further, the ternary environment-friendly mixed refrigerant comprises 36-52% of difluoromethane, 40-48% of trifluoroethylene and 8-16% of 1, 1-difluoroethane in percentage by mole.
Further, the ternary environment-friendly mixed refrigerant comprises 48 percent of difluoromethane, 48 percent of trifluoroethylene and 4 percent of 1, 1-difluoroethane in percentage by mole.
Further, the ternary environment-friendly mixed refrigerant comprises 52% of difluoromethane, 44% of trifluoroethylene and 4% of 1, 1-difluoroethane in percentage by mole.
Further, the ternary environment-friendly mixed refrigerant comprises 4-68% of difluoromethane, 24-84% of trifluoroethylene and 4-20% of trifluoromethyl methyl ether in percentage by mole.
Further, the ternary environment-friendly mixed refrigerant comprises 36-52% of difluoromethane, 28-48% of trifluoroethylene and 12-20% of trifluoromethyl methyl ether in percentage by mole.
Further, the ternary environment-friendly mixed refrigerant comprises 4% of difluoromethane, 84% of trifluoroethylene and 12% of trifluoromethyl methyl ether in percentage by mole.
In order to achieve the above object, according to a second aspect of the present invention, there is provided a method for preparing a ternary environment-friendly mixed refrigerant, for preparing the ternary environment-friendly mixed refrigerant provided by the first aspect of the embodiments of the present invention, the method comprising the steps of: and mixing and stirring the first component, the second component and the third component in a room-temperature liquid-phase state to obtain the ternary environment-friendly mixed refrigerant.
In order to achieve the above object, according to a third aspect of the present invention, there is also provided a refrigeration system, including a working medium, where the working medium includes the ternary environment-friendly mixed refrigerant provided by the first aspect of the embodiments of the present invention.
The ternary environment-friendly mixed refrigerant provided by the invention not only has the environment-friendly characteristic of low GWP, but also has the system performance coefficient similar to that of R410A, and the refrigerating capacity per unit volume can be improved to a certain extent, so that the ternary environment-friendly mixed refrigerant can be better used for replacing the R410A refrigerant.
Detailed Description
In order to make the technical solutions in the embodiments of the present application better understood, the technical solutions in the embodiments of the present application will be clearly and completely described below, and it is obvious that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that the terms "comprises" and "comprising," and any variations thereof, in the description and claims of this application are intended to cover a non-exclusive inclusion, such that a system, article, or apparatus that comprises a list of elements is not necessarily limited to those elements explicitly listed, but may include other elements not expressly listed or inherent to such product or apparatus. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
TABLE 1 basic parameters of each component substance in ternary environment-friendly mixed refrigerant
The preparation method of the ternary environment-friendly mixed refrigerant provided by the embodiment of the invention is that the first component, the second component and the third component for forming the ternary environment-friendly mixed refrigerant are physically mixed in a normal-temperature normal-pressure liquid phase state according to corresponding mass ratio, so that a ternary mixture is formed, and the ternary environment-friendly mixed refrigerant can be specifically mixed and stirred in the normal-temperature normal-pressure liquid phase state to prepare the ternary environment-friendly mixed refrigerant. Wherein the first component is difluoromethane, the second component is trifluoroethylene, and the third component is 1, 1-difluoroethane or trifluoromethyl methyl ether. The basic parameters of each component substance in the ternary environment-friendly mixed refrigerant in the embodiment of the invention are shown in the table 1.
In order to make the technical solutions better understood by those skilled in the art, the technical solutions will be clearly and completely described below in conjunction with the embodiments of the present application, and the described embodiments are only a part of the embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application. The present application will be described in detail with reference to preferred embodiments. Referring to table 2, specific examples and comparative examples are given below, in which the proportions of the components are all mole percentages, and the sum of the mole percentages of the component substances of each ternary environment-friendly mixed refrigerant is 100%.
TABLE 2 composition of ingredients of each example and comparative example
| Formulation(s) | A first component | A second component | Third component | Molar ratio of |
| Example 1 | R32 | R1123 | R152a | 0.04/0.88/0.08 |
| Example 2 | R32 | R1123 | R152a | 0.24/0.68/0.08 |
| Example 3 | R32 | R1123 | R152a | 0.36/0.40/0.24 |
| Example 4 | R32 | R1123 | R152a | 0.48/0.48/0.04 |
| Example 5 | R32 | R1123 | R152a | 0.52/0.44/0.04 |
| Example 6 | R32 | R1123 | R152a | 0.68/0.16/0.16 |
| Example 7 | R32 | R1123 | R152a | 0.72/0.20/0.08 |
| Example 8 | R32 | R1123 | RE143a | 0.04/0.84/0.12 |
| Example 9 | R32 | R1123 | RE143a | 0.36/0.44/0.20 |
| Example 10 | R32 | R1123 | RE143a | 0.48/0.48/0.04 |
| Example 11 | R32 | R1123 | RE143a | 0.52/0.44/0.04 |
| Example 12 | R32 | R1123 | RE143a | 0.64/0.24/0.12 |
| Example 13 | R32 | R1123 | RE143a | 0.68/0.28/0.04 |
| Comparative example 1 | R32 | R1123 | R152a | 0.84/0.04/0.12 |
| Comparative example 2 | R32 | R1123 | R152a | 0.04/0.92/0.04 |
| Comparative example 3 | R32 | R1123 | R152a | 0.20/0.40/0.40 |
| Comparative example 4 | R32 | R1123 | RE143a | 0.84/0.04/0.12 |
| Comparative example 5 | R32 | R1123 | RE143a | 0.04/0.92/0.04 |
| Comparative example 6 | R32 | R1123 | RE143a | 0.20/0.40/0.40 |
Example 1
Difluoromethane (R32), trifluoroethylene (R1123) and 1, 1-difluoroethane (R152 a) are physically and uniformly mixed at a molar ratio of 4.
Example 2
Difluoromethane (R32), trifluoroethylene (R1123) and 1, 1-difluoroethane (R152 a) are physically and uniformly mixed at a molar ratio of 24.
Example 3
Uniformly and physically mixing difluoromethane (R32), trifluoroethylene (R1123) and 1, 1-difluoroethane (R152 a) according to a molar ratio of 36.
Example 4
Uniformly and physically mixing difluoromethane (R32), trifluoroethylene (R1123) and 1, 1-difluoroethane (R152 a) according to a molar ratio of 48.
Example 5
Uniformly and physically mixing difluoromethane (R32), trifluoroethylene (R1123) and 1, 1-difluoroethane (R152 a) according to a molar ratio of 52 to 44 at normal temperature and normal pressure in a liquid phase to obtain a ternary environment-friendly mixed refrigerant.
Example 6
Difluoromethane (R32), trifluoroethylene (R1123) and 1, 1-difluoroethane (R152 a) are physically mixed uniformly at a molar ratio of 68.
Example 7
Difluoromethane (R32), trifluoroethylene (R1123) and 1, 1-difluoroethane (R152 a) are physically mixed uniformly at a molar ratio of 72.
Example 8
Difluoromethane (R32), trifluoroethylene (R1123) and trifluoromethyl methyl ether (RE 143 a) are physically and uniformly mixed at a molar ratio of 4.
Example 9
Difluoromethane (R32), trifluoroethylene (R1123) and trifluoromethyl methyl ether (RE 143 a) are physically mixed uniformly at a normal temperature and pressure in a liquid phase according to a molar ratio of 36.
Example 10
Difluoromethane (R32), trifluoroethylene (R1123) and trifluoromethyl methyl ether (RE 143 a) are physically mixed uniformly at normal temperature and pressure in a liquid phase according to a molar ratio of 48.
Example 11
Difluoromethane (R32), trifluoroethylene (R1123) and trifluoromethyl methyl ether (RE 143 a) are physically and uniformly mixed at a molar ratio of 52.
Example 12
Difluoromethane (R32), trifluoroethylene (R1123) and trifluoromethyl methyl ether (RE 143 a) are physically and uniformly mixed at a molar ratio of 64.
Example 13
Difluoromethane (R32), trifluoroethylene (R1123) and trifluoromethyl methyl ether (RE 143 a) were physically mixed uniformly at a molar ratio of 68.
Comparative example 1
Difluoromethane (R32), trifluoroethylene (R1123) and 1, 1-difluoroethane (R152 a) are physically and uniformly mixed at a molar ratio of 84.
Comparative example 2
Difluoromethane (R32), trifluoroethylene (R1123) and 1, 1-difluoroethane (R152 a) are physically and uniformly mixed at a molar ratio of 4.
Comparative example 3
Uniformly and physically mixing difluoromethane (R32), trifluoroethylene (R1123) and 1, 1-difluoroethane (R152 a) according to a molar ratio of 20.
Comparative example 4
Difluoromethane (R32), trifluoroethylene (R1123) and trifluoromethyl methyl ether (RE 143 a) are physically mixed uniformly at a normal temperature and pressure in a liquid phase according to a molar ratio of 84.
Comparative example 5
Difluoromethane (R32), trifluoroethylene (R1123) and trifluoromethyl methyl ether (RE 143 a) are physically and uniformly mixed at a molar ratio of 4.
Comparative example 6
Difluoromethane (R32), trifluoroethylene (R1123) and trifluoromethyl methyl ether (RE 143 a) are physically mixed uniformly at a normal temperature and pressure in a liquid phase according to a molar ratio of 20.
In order to compare the effects of the embodiments and the comparative examples, the design conditions of the refrigeration system selected are as follows: the evaporator evaporation temperature (the arithmetic mean of the evaporator inlet temperature and the dew point temperature under the corresponding pressure) was 283.15K, the condenser condensation temperature (the arithmetic mean of the dew point and bubble point temperature in the condenser) was 313.15K, the vapor phase at the evaporator outlet was in a superheated state, the degree of superheat was 5K, the liquid phase at the condenser outlet was in a supercooled state, the degree of supercooling was 5K, and the adiabatic efficiency of the compressor was 0.75. Experiments were conducted using the cycle performance parameters of the refrigerants of examples 1 to 13, comparative examples 1 to 6 and R410A in the refrigeration system described above, respectively, and the GWP, the relative cooling capacity per unit volume Qv (ratio to cooling capacity per unit volume of R410A), the relative coefficient of performance COP (ratio to coefficient of performance of R410A), the compressor discharge temperature, and the compressor pressure ratio of the refrigerants produced in each of the examples were compared and recorded in table 3.
As can be seen from Table 3, the ternary environment-friendly mixed refrigerant provided by the invention has environmental performance far better than that of R410A, and has lower GWP. Particularly, the GWP of all refrigerant formulas is less than 450, and the refrigerant has a good environment-friendly characteristic; the relative unit volume refrigerating capacity of all refrigerant formulas is not lower than 0.95, the relative performance coefficient is not lower than 0.95, the refrigerating capacity and energy efficiency are basically equivalent to or obviously superior to those of R410A refrigerant, and the refrigerating capacity can be improved by 17% to the maximum extent; the compressor discharge temperature and pressure ratio of all refrigerant formulations are close to R410A, which is advantageous for the overall system.
Through experimental comparison, technicians know that good environmental protection characteristics and thermal performance equivalent to R410A can be obtained when the ternary environment-friendly mixed refrigerant comprises 4-72% of difluoromethane, 16-88% of trifluoroethylene and 4-24% of 1, 1-difluoroethane in terms of mole percentage for the refrigerant consisting of difluoromethane, trifluoroethylene and 1, 1-difluoroethane; for the refrigerant consisting of difluoromethane, trifluoroethylene and trifluoromethyl methyl ether, good environmental protection characteristics and thermal performance equivalent to R410A can be obtained when the ternary environment-friendly mixed refrigerant comprises 4-68% of difluoromethane, 24-84% of trifluoroethylene and 4-20% of trifluoromethyl methyl ether in percentage by mole. If only one of the three components is not in the molar ratio range, the loss of environmental protection performance or thermal performance can be caused, for example, the GWP of the comparative example 1 and the GWP of the comparative example 4 provided by the invention are higher than 450, and the environmental protection performance is poorer; the coefficient of performance of comparative example 2 and comparative example 5 is low; the volumetric cooling capacity of comparative example 3 and comparative example 6 was low.
TABLE 3 Experimental data for each of the examples, comparative examples, and R410A refrigerants
As can be seen from the comparative data in table 3, the ternary environment-friendly mixed refrigerant provided in the embodiment of the present invention has the environment-friendly characteristic of low GWP, the system performance coefficient is similar to that of the R410A refrigerant, the maximum refrigerating capacity per unit volume can be increased by 17%, and the R410A refrigerant can be better replaced.
The embodiment of the invention correspondingly protects a refrigerating system which comprises a working medium, wherein the working medium comprises the ternary environment-friendly mixed refrigerant provided by the embodiment of the invention. Other configurations and operating principles of the refrigeration system are applicable to the prior art and will not be described in detail herein.
Some embodiments in this specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The above description is merely illustrative of particular embodiments of the invention that enable those skilled in the art to understand or practice the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (5)
1. The ternary environment-friendly mixed refrigerant used for replacing R410A is characterized in that the ratio of the refrigerating capacity per unit volume of the ternary environment-friendly mixed refrigerant to the refrigerating capacity per unit volume of R410A is not lower than 0.95, and the ratio of the coefficient of performance of the ternary environment-friendly mixed refrigerant to the coefficient of performance of R410A is not lower than 0.95;
the ternary environment-friendly mixed refrigerant consists of 4-68% of difluoromethane, 24-84% of trifluoroethylene and 4-20% of trifluoromethyl methyl ether in percentage by mole, and the GWP value of the ternary environment-friendly mixed refrigerant is less than 450.
2. The ternary environment-friendly mixed refrigerant for replacing R410A as claimed in claim 1, characterized by consisting of 36-52% of difluoromethane, 28-48% of trifluoroethylene and 12-20% of trifluoromethyl methyl ether in mol percentage.
3. The ternary environment-friendly mixed refrigerant for replacing R410A as claimed in claim 1, characterized by consisting of, in mole percentage, 4% of difluoromethane, 84% of trifluoroethylene and 12% of trifluoromethyl methyl ether.
4. A method for preparing the ternary environment-friendly mixed refrigerant for replacing R410A according to any one of claims 1 to 3, wherein the method comprises the following steps: and mixing and stirring the difluoromethane, the trifluoroethylene and the trifluoromethyl methyl ether at room temperature in a liquid phase state to obtain the ternary environment-friendly mixed refrigerant.
5. A refrigeration system, characterized in that the refrigeration system comprises a working medium, wherein the working medium comprises the ternary environment-friendly mixed refrigerant as claimed in any one of claims 1 to 3 for replacing R410A.
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| CN113604201A (en) * | 2021-09-15 | 2021-11-05 | 珠海格力电器股份有限公司 | Mixed refrigerant and air conditioning system |
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| CN106029825A (en) * | 2014-02-24 | 2016-10-12 | 旭硝子株式会社 | Composition for thermal cycle system and thermal cycle system |
| WO2016181933A1 (en) * | 2015-05-12 | 2016-11-17 | 旭硝子株式会社 | Composition for heat cycle system, and heat cycle system |
| EP3511392B8 (en) * | 2016-09-07 | 2023-02-15 | Agc Inc. | Working fluid for heat cycle, composition for heat cycle system, and heat cycle system |
| WO2019123805A1 (en) * | 2017-12-18 | 2019-06-27 | ダイキン工業株式会社 | Composition containing refrigerant, use of said composition, refrigerator having said composition, and method for operating said refrigerator |
| FR3081865B1 (en) * | 2018-06-05 | 2020-11-06 | Arkema France | COMPOSITIONS BASED ON 1,1,2-TRIFLUOROETHYLENE AND CARBON DIOXIDE |
| GB201813237D0 (en) * | 2018-08-14 | 2018-09-26 | Mexichem Fluor Sa De Cv | Refrigerant composition |
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