CN112760080B - Mixed refrigerant and air conditioning system - Google Patents
Mixed refrigerant and air conditioning system Download PDFInfo
- Publication number
- CN112760080B CN112760080B CN202011587797.1A CN202011587797A CN112760080B CN 112760080 B CN112760080 B CN 112760080B CN 202011587797 A CN202011587797 A CN 202011587797A CN 112760080 B CN112760080 B CN 112760080B
- Authority
- CN
- China
- Prior art keywords
- fluoroethane
- trifluoroethylene
- trifluoroiodomethane
- mass ratio
- normal temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000003507 refrigerant Substances 0.000 title claims abstract description 69
- 238000004378 air conditioning Methods 0.000 title claims abstract description 15
- UHCBBWUQDAVSMS-UHFFFAOYSA-N fluoroethane Chemical group CCF UHCBBWUQDAVSMS-UHFFFAOYSA-N 0.000 claims abstract description 105
- VPAYJEUHKVESSD-UHFFFAOYSA-N trifluoroiodomethane Chemical group FC(F)(F)I VPAYJEUHKVESSD-UHFFFAOYSA-N 0.000 claims abstract description 105
- FDMFUZHCIRHGRG-UHFFFAOYSA-N 3,3,3-trifluoroprop-1-ene Chemical compound FC(F)(F)C=C FDMFUZHCIRHGRG-UHFFFAOYSA-N 0.000 claims abstract description 58
- FXRLMCRCYDHQFW-UHFFFAOYSA-N 2,3,3,3-tetrafluoropropene Chemical compound FC(=C)C(F)(F)F FXRLMCRCYDHQFW-UHFFFAOYSA-N 0.000 claims abstract description 54
- MIZLGWKEZAPEFJ-UHFFFAOYSA-N 1,1,2-trifluoroethene Chemical group FC=C(F)F MIZLGWKEZAPEFJ-UHFFFAOYSA-N 0.000 claims abstract description 53
- 239000007791 liquid phase Substances 0.000 claims description 74
- 230000007613 environmental effect Effects 0.000 abstract description 8
- 230000008901 benefit Effects 0.000 abstract description 5
- 230000000052 comparative effect Effects 0.000 description 10
- 238000005057 refrigeration Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000010792 warming Methods 0.000 description 3
- LVGUZGTVOIAKKC-UHFFFAOYSA-N 1,1,1,2-tetrafluoroethane Chemical compound FCC(F)(F)F LVGUZGTVOIAKKC-UHFFFAOYSA-N 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000009972 noncorrosive effect Effects 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
- 238000004781 supercooling Methods 0.000 description 1
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/32—Cooling devices
-
- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/88—Optimized components or subsystems, e.g. lighting, actively controlled glasses
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Lubricants (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Detergent Compositions (AREA)
Abstract
The present disclosure provides a mixed refrigerant and an air conditioning system, the mixed refrigerant comprising a first component, a second component, a third component, and a fourth component, wherein: the first component is fluoroethane, the second component is one of 3,3, 3-trifluoropropene and 2,3,3, 3-tetrafluoropropene, the third component is 1,1, 2-trifluoroethylene, and the fourth component is trifluoroiodomethane. The mixed refrigerant disclosed by the invention can be used as a substitute refrigerant of R134a, the GWP of the mixed refrigerant is less than 4, the ODP is 0, the refrigerant has obvious environmental protection advantages, and meanwhile, the thermodynamic performance of the environment-friendly mixed refrigerant is equivalent to or even higher than that of R134a, so that the technical problem of high GWP of R134a refrigerant can be effectively solved while the thermodynamic performance of the refrigerant is equivalent to or even better than that of R134 a.
Description
Technical Field
The disclosure belongs to the technical field of refrigeration, and particularly relates to a mixed refrigerant and an air conditioning system.
Background
The refrigerant is the "blood" of the air conditioning system and has a significant impact on the design and operational performance of the refrigeration system. An ideal refrigerant has good thermodynamic properties, and also has good characteristics in terms of environmental friendliness, material compatibility, and the like. 1,1, 1, 2-tetrafluoroethane (R134a) is because of having characteristics such as nontoxic, incombustible, noncorrosive, material compatibility is better, but widely used in fields such as vehicle air conditioner and some other refrigerating systems, but with the growing severity of global environment situation, ozone layer consumption and global warming problem put forward higher requirements to the refrigeration industry, especially in 2019 in the "Montreal protocol" the foundation benefit of amendment takes effect, further strengthen the refrigerant management and control that Global Warming Potential (GWP) is high, make HFCs refrigerant such as R134a face to cut down and eliminate, therefore it is necessary to look for a refrigerant that has good environmental protection performance, thermal property is equivalent to R134a at the same time even better to substitute, in order to satisfy the requirement of refrigerant environmental protection nature and high efficiency to the maximum limit.
Because the refrigerant R134a in the prior art has the technical problems of high GWP value and the like, the mixed refrigerant and the air conditioning system are researched and designed by the disclosure.
BRIEF SUMMARY OF THE PRESENT DISCLOSURE
Therefore, the technical problem to be solved by the present disclosure is to overcome the defect that the refrigerants in the prior art cannot simultaneously guarantee higher refrigerant thermal performance and low GWP value, thereby providing a mixed refrigerant and an air conditioning system.
The present disclosure provides a mixed refrigerant, wherein:
the mixed refrigerant comprises a first component, a second component, a third component and a fourth component, wherein: the first component is fluoroethane, the second component is one of 3,3, 3-trifluoropropene and 2,3,3, 3-tetrafluoropropene, the third component is 1,1, 2-trifluoroethylene, and the fourth component is trifluoroiodomethane.
In some embodiments, the first component comprises [ 44%, 88% ] by mass of the mixed refrigerant, the second component comprises [ 4%, 12% ] by mass of the mixed refrigerant, the third component comprises [ 4%, 24% ] by mass of the mixed refrigerant, and the fourth component comprises [ 4%, 48% ] by mass of the mixed refrigerant.
In some embodiments, the mass ratio of fluoroethane, 3,3, 3-trifluoropropene, 1, 2-trifluoroethylene, and trifluoroiodomethane is 48:4:4: 44; alternatively, the first and second electrodes may be,
under the state of normal temperature and pressure liquid phase, the mass ratio of fluoroethane, 3,3, 3-trifluoropropene, 1, 2-trifluoroethylene and trifluoroiodomethane is 52:4:4: 40; alternatively, the first and second electrodes may be,
under the state of normal temperature and pressure liquid phase, the mass ratio of fluoroethane, 3,3, 3-trifluoropropene, 1, 2-trifluoroethylene and trifluoroiodomethane is 56:4:4: 36; alternatively, the first and second electrodes may be,
under the state of normal temperature and pressure liquid phase, the mass ratio of the fluoroethane, the 3,3, 3-trifluoropropene, the 1,1, 2-trifluoroethylene and the trifluoroiodomethane is 60:8:4: 28.
In some embodiments, in the state of normal temperature and pressure liquid phase, the mass ratio of fluoroethane, 3,3, 3-trifluoropropene, 1, 2-trifluoroethylene and trifluoroiodomethane is 64:12:4: 20; alternatively, the first and second electrodes may be,
under the state of normal temperature and pressure liquid phase, the mass ratio of fluoroethane, 3,3, 3-trifluoropropene, 1, 2-trifluoroethylene and trifluoroiodomethane is 68:4:4: 24; alternatively, the first and second electrodes may be,
under the state of normal temperature and pressure liquid phase, the mass ratio of fluoroethane, 3,3, 3-trifluoropropene, 1, 2-trifluoroethylene and trifluoroiodomethane is 68:16:4: 12; alternatively, the first and second electrodes may be,
under the state of normal temperature and pressure liquid phase, the mass ratio of the fluoroethane, the 3,3, 3-trifluoropropene, the 1,1, 2-trifluoroethylene and the trifluoroiodomethane is 72:16:4: 8.
In some embodiments, in the state of normal temperature and pressure liquid phase, the mass ratio of fluoroethane, 3,3, 3-trifluoropropene, 1, 2-trifluoroethylene and trifluoroiodomethane is 76:4:8: 12; alternatively, the first and second electrodes may be,
under the state of normal temperature and pressure liquid phase, the mass ratio of fluoroethane, 3,3, 3-trifluoropropene, 1, 2-trifluoroethylene and trifluoroiodomethane is 76:16:4: 4; alternatively, the first and second electrodes may be,
under the state of normal temperature and pressure liquid phase, the mass ratio of fluoroethane, 3,3, 3-trifluoropropene, 1, 2-trifluoroethylene and trifluoroiodomethane is 80:4:4: 12; alternatively, the first and second electrodes may be,
under the state of normal temperature and pressure liquid phase, the mass ratio of the fluoroethane to the 2,3,3, 3-tetrafluoropropene to the 1,1, 2-trifluoroethylene to the trifluoroiodomethane is 48:4:4: 44.
In some embodiments, in the state of normal temperature and pressure liquid phase, the mass ratio of fluoroethane, 2,3,3, 3-tetrafluoropropene, 1, 2-trifluoroethylene and trifluoroiodomethane is 52:12:4: 32; alternatively, the first and second electrodes may be,
under the state of normal temperature and pressure liquid phase, the mass ratio of fluoroethane to 2,3,3, 3-tetrafluoropropene to 1,1, 2-trifluoroethylene to trifluoroiodomethane is 56:12:4: 28; alternatively, the first and second electrodes may be,
under the state of normal temperature and pressure liquid phase, the mass ratio of fluoroethane to 2,3,3, 3-tetrafluoropropene to 1,1, 2-trifluoroethylene to trifluoroiodomethane is 60:12:4: 24; alternatively, the first and second electrodes may be,
under the state of normal temperature and pressure liquid phase, the mass ratio of the fluoroethane to the 2,3,3, 3-tetrafluoropropene to the 1,1, 2-trifluoroethylene to the trifluoroiodomethane is 64:12:4: 20.
In some embodiments, the mass ratio of fluoroethane, 2,3,3, 3-tetrafluoropropene, 1, 2-trifluoroethylene, and trifluoroiodomethane is 64:8:4: 24; alternatively, the first and second electrodes may be,
under the state of normal temperature and pressure liquid phase, the mass ratio of fluoroethane to 2,3,3, 3-tetrafluoropropene to 1,1, 2-trifluoroethylene to trifluoroiodomethane is 68:16:4: 12; alternatively, the first and second electrodes may be,
under the state of normal temperature and pressure liquid phase, the mass ratio of fluoroethane, 3,3, 3-trifluoropropene, 1, 2-trifluoroethylene and trifluoroiodomethane is 68:4:4: 24; alternatively, the first and second electrodes may be,
under the state of normal temperature and pressure liquid phase, the mass ratio of the fluoroethane to the 2,3,3, 3-tetrafluoropropene to the 1,1, 2-trifluoroethylene to the trifluoroiodomethane is 72:4:4: 20.
In some embodiments, the mass ratio of fluoroethane, 2,3,3, 3-tetrafluoropropene, 1, 2-trifluoroethylene, and trifluoroiodomethane is 76:4:8: 12; alternatively, the first and second electrodes may be,
under the state of normal temperature and pressure liquid phase, the mass ratio of fluoroethane to 2,3,3, 3-tetrafluoropropene to 1,1, 2-trifluoroethylene to trifluoroiodomethane is 80:4:4: 12; alternatively, the first and second electrodes may be,
under the state of normal temperature and pressure liquid phase, the mass ratio of the fluoroethane to the 2,3,3, 3-tetrafluoropropene to the 1,1, 2-trifluoroethylene to the trifluoroiodomethane is 80:4:12: 4.
The present disclosure also provides an air conditioning system comprising the mixed refrigerant of any of the preceding.
In some embodiments, the air conditioning system is a vehicle air conditioning system.
The mixed refrigerant and air conditioning system provided by the disclosure has the following beneficial effects:
the present disclosure provides a quaternary environment-friendly mixed refrigerant (fluoroethane (R161), 3,3, 3-trifluoropropene (R1243zf) or 2,3,3, 3-tetrafluoropropene (R1234yf), 1,1, 2-trifluoroethylene (R1123), trifluoroiodomethane (R13I1), which can be used as a substitute refrigerant for R134a, wherein the mixed refrigerant has a GWP of less than 4 and an ODP of 0, and has obvious environmental advantages, and meanwhile, the thermodynamic performance of the environment-friendly mixed refrigerant is equivalent to or even higher than that of R134a, so that the technical problem of high GWP value of R134a refrigerant can be effectively solved while the thermodynamic performance of the refrigerant is equivalent to or even better than that of R134 a.
Detailed Description
The present disclosure provides a quaternary environment-friendly mixed refrigerant, which includes a first component, a second component, a third component, and a fourth component, wherein: the first component is fluoroethane (R161), the second component is one of 3,3, 3-trifluoropropene (R1243zf) and 2,3,3, 3-tetrafluoropropene (R1234yf), the third component is 1,1, 2-trifluoroethylene (R1123), and the fourth component is trifluoroiodomethane (R13I 1).
The present disclosure provides a quaternary environment-friendly mixed refrigerant (fluoroethane (R161), 3,3, 3-trifluoropropene (R1243zf) or 2,3,3, 3-tetrafluoropropene (R1234yf), 1,1, 2-trifluoroethylene (R1123), trifluoroiodomethane (R13I1), which can be used as a substitute refrigerant for R134a, wherein the mixed refrigerant has a GWP of less than 4 and an ODP of 0, and has obvious environmental advantages, and meanwhile, the thermodynamic performance of the environment-friendly mixed refrigerant is equivalent to or even higher than that of R134a, so that the technical problem of high GWP value of R134a refrigerant can be effectively solved while the thermodynamic performance of the refrigerant is equivalent to or even better than that of R134 a.
The environment-friendly mixed refrigerant has the following advantages:
(1) the ODP value of the ozone depletion potential of the environment-friendly mixed refrigerant is zero, the GWP value of the global warming potential is extremely low, and the environment performance is excellent;
(2) the environment-friendly mixed refrigerant has good thermodynamic performance, the coefficient of performance (COP) is equivalent to that of R134a, and the volumetric refrigerating capacity is 37% higher than that of R134 a.
The invention provides a quaternary environment-friendly mixed refrigerant capable of replacing R134 a. The preparation method comprises the step of physically mixing a first component (fluoroethane/R161), a second component (3,3, 3-trifluoropropene/R1243 zf, 2,3,3, 3-tetrafluoropropene/R1234 yf), a third component (1,1, 2-trifluoroethylene/R1123) and a fourth component (trifluoroiodomethane/R13I 1) into a quaternary mixture according to corresponding mass ratios under normal temperature and pressure liquid phase states. The basic parameters of each component are shown in Table 1.
In some embodiments, the first component comprises [ 48%, 80% ] by mass of the mixed refrigerant, the second component comprises [ 4%, 16% ] by mass of the mixed refrigerant, the third component comprises [ 4%, 12% ] by mass of the mixed refrigerant, and the fourth component comprises [ 4%, 44% ] by mass of the mixed refrigerant.
TABLE 1 basic parameters of the constituent substances in the mixed working fluid
Example 1
Under the state of normal temperature and pressure liquid phase, the mass ratio of the fluoroethane (R161), the 3,3, 3-trifluoropropene (R1243zf), the 1,1, 2-trifluoroethylene (R1123) and the trifluoroiodomethane (R13I1) is 48:4:4: 44; namely, four components of fluoroethane (R161), 3,3, 3-trifluoropropene (R1243zf), 1, 2-trifluoroethylene (R1123) and trifluoroiodomethane (R13I1) are physically and uniformly mixed at normal temperature and normal pressure in a mass ratio of 48:4:4:44 to obtain the environment-friendly mixed working medium.
Example 2
Under the state of normal temperature and pressure and liquid phase, the mass ratio of the fluoroethane (R161), the 3,3, 3-trifluoropropene (R1243zf), the 1,1, 2-trifluoroethylene (R1123) and the trifluoroiodomethane (R13I1) is 52:4:4: 40; namely, the four components of fluoroethane (R161), 3,3, 3-trifluoropropene (R1243zf), 1, 2-trifluoroethylene (R1123) and trifluoroiodomethane (R13I1) are physically and uniformly mixed at normal temperature and normal pressure in a mass ratio of 52:4:4:40 to obtain the environment-friendly mixed working medium.
Example 3
Under the state of normal temperature and pressure and liquid phase, the mass ratio of the fluoroethane (R161), the 3,3, 3-trifluoropropene (R1243zf), the 1,1, 2-trifluoroethylene (R1123) and the trifluoroiodomethane (R13I1) is 56:4:4: 36. Namely, the four components of fluoroethane (R161), 3,3, 3-trifluoropropene (R1243zf), 1, 2-trifluoroethylene (R1123) and iodotrifluoromethane (R13I1) are physically and uniformly mixed at normal temperature and normal pressure in a mass ratio of 56:4:4:36 to obtain the environment-friendly mixed working medium.
Example 4
Under the state of normal temperature and pressure and liquid phase, the mass ratio of the fluoroethane (R161), the 3,3, 3-trifluoropropene (R1243zf), the 1,1, 2-trifluoroethylene (R1123) and the trifluoroiodomethane (R13I1) is 60:8:4: 28. Namely, four components of fluoroethane (R161), 3,3, 3-trifluoropropene (R1243zf), 1, 2-trifluoroethylene (R1123) and trifluoroiodomethane (R13I1) are physically and uniformly mixed at the normal temperature and pressure in a mass ratio of 60:8:4:28 to obtain the environment-friendly mixed working medium.
Example 5
Under the state of normal temperature and pressure liquid phase, the mass ratio of the fluoroethane (R161), the 3,3, 3-trifluoropropene (R1243zf), the 1,1, 2-trifluoroethylene (R1123) and the trifluoroiodomethane (R13I1) is 64:12:4: 20; namely, four components of fluoroethane (R161), 3,3, 3-trifluoropropene (R1243zf), 1, 2-trifluoroethylene (R1123) and trifluoroiodomethane (R13I1) are physically and uniformly mixed at the normal temperature and pressure in a mass ratio of 64:12:4:20 to obtain the environment-friendly mixed working medium.
Example 6
Under the state of normal temperature and pressure and liquid phase, the mass ratio of the fluoroethane (R161), the 3,3, 3-trifluoropropene (R1243zf), the 1,1, 2-trifluoroethylene (R1123) and the trifluoroiodomethane (R13I1) is 68:4:4: 24; namely, four components of fluoroethane (R161), 3,3, 3-trifluoropropene (R1243zf), 1, 2-trifluoroethylene (R1123) and trifluoroiodomethane (R13I1) are physically and uniformly mixed at the normal temperature and pressure in a liquid phase according to the mass ratio of 68:4:4:24 to obtain the environment-friendly mixed working medium.
Example 7
Under the state of normal temperature and pressure and liquid phase, the mass ratio of the fluoroethane (R161), the 3,3, 3-trifluoropropene (R1243zf), the 1,1, 2-trifluoroethylene (R1123) and the trifluoroiodomethane (R13I1) is 68:16:4: 12; namely, four components of fluoroethane (R161), 3,3, 3-trifluoropropene (R1243zf), 1, 2-trifluoroethylene (R1123) and trifluoroiodomethane (R13I1) are physically and uniformly mixed at the normal temperature and pressure in a mass ratio of 68:16:4:12 to obtain the environment-friendly mixed working medium.
Example 8
Under the state of normal temperature and pressure and liquid phase, the mass ratio of the fluoroethane (R161), the 3,3, 3-trifluoropropene (R1243zf), the 1,1, 2-trifluoroethylene (R1123) and the trifluoroiodomethane (R13I1) is 72:16:4: 8. Namely, four components of fluoroethane (R161), 3,3, 3-trifluoropropene (R1243zf), 1, 2-trifluoroethylene (R1123) and trifluoroiodomethane (R13I1) are physically and uniformly mixed at the normal temperature and pressure in a mass ratio of 72:16:4:8 to obtain the environment-friendly mixed working medium.
Example 9
Under the state of normal temperature and pressure liquid phase, the mass ratio of the fluoroethane (R161), the 3,3, 3-trifluoropropene (R1243zf), the 1,1, 2-trifluoroethylene (R1123) and the trifluoroiodomethane (R13I1) is 76:4:8: 12; namely, four components of fluoroethane (R161), 3,3, 3-trifluoropropene (R1243zf), 1, 2-trifluoroethylene (R1123) and trifluoroiodomethane (R13I1) are physically and uniformly mixed at normal temperature and normal pressure in a mass ratio of 76:4:8:12 to obtain the environment-friendly mixed working medium.
Example 10
Under the state of normal temperature and pressure and liquid phase, the mass ratio of the fluoroethane (R161), the 3,3, 3-trifluoropropene (R1243zf), the 1,1, 2-trifluoroethylene (R1123) and the trifluoroiodomethane (R13I1) is 76:16:4: 4; namely, four components of fluoroethane (R161), 3,3, 3-trifluoropropene (R1243zf), 1, 2-trifluoroethylene (R1123) and trifluoroiodomethane (R13I1) are physically and uniformly mixed at normal temperature and normal pressure in a mass ratio of 76:16:4:4 to obtain the environment-friendly mixed working medium.
Example 11
Under the state of normal temperature and pressure liquid phase, the mass ratio of the fluoroethane (R161), the 3,3, 3-trifluoropropene (R1243zf), the 1,1, 2-trifluoroethylene (R1123) and the trifluoroiodomethane (R13I1) is 80:4:4: 12; namely, four components of fluoroethane (R161), 3,3, 3-trifluoropropene (R1243zf), 1, 2-trifluoroethylene (R1123) and trifluoroiodomethane (R13I1) are physically and uniformly mixed at the normal temperature and pressure in a mass ratio of 80:4:4:12 to obtain the environment-friendly mixed working medium.
Example 12
Under the state of normal temperature and pressure and liquid phase, the mass ratio of the fluoroethane (R161), the 2,3,3, 3-tetrafluoropropene (R1234yf), the 1,1, 2-trifluoroethylene (R1123) and the trifluoroiodomethane (R13I1) is 48:4:4: 44. Namely, four components of fluoroethane (R161), 2,3,3, 3-tetrafluoropropene (R1234yf), 1, 2-trifluoroethylene (R1123) and trifluoroiodomethane (R13I1) are physically and uniformly mixed at the normal temperature and normal pressure in a mass ratio of 48:4:4:44 to obtain the environment-friendly mixed working medium.
Example 13
Under the state of normal temperature and pressure liquid phase, the mass ratio of the fluoroethane (R161), the 2,3,3, 3-tetrafluoropropene (R1234yf), the 1,1, 2-trifluoroethylene (R1123) and the trifluoroiodomethane (R13I1) is 52:12:4: 32; namely, four components of fluoroethane (R161), 2,3,3, 3-tetrafluoropropene (R1234yf), 1, 2-trifluoroethylene (R1123) and trifluoroiodomethane (R13I1) are physically and uniformly mixed at normal temperature and normal pressure in a mass ratio of 52:12:4:32 to obtain the environment-friendly mixed working medium.
Example 14
Under the state of normal temperature and pressure liquid phase, the mass ratio of the fluoroethane (R161), the 2,3,3, 3-tetrafluoropropene (R1234yf), the 1,1, 2-trifluoroethylene (R1123) and the trifluoroiodomethane (R13I1) is 56:12:4: 28; namely, four components of fluoroethane (R161), 2,3,3, 3-tetrafluoropropene (R1234yf), 1, 2-trifluoroethylene (R1123) and trifluoroiodomethane (R13I1) are physically and uniformly mixed according to the mass ratio of 56:12:4:28 under normal temperature and pressure liquid phase to obtain the environment-friendly mixed working medium.
Example 15
Under the state of normal temperature and pressure liquid phase, the mass ratio of the fluoroethane (R161), the 2,3,3, 3-tetrafluoropropene (R1234yf), the 1,1, 2-trifluoroethylene (R1123) and the trifluoroiodomethane (R13I1) is 60:12:4: 24; namely, four components of fluoroethane (R161), 2,3,3, 3-tetrafluoropropene (R1234yf), 1, 2-trifluoroethylene (R1123) and trifluoroiodomethane (R13I1) are physically and uniformly mixed at the normal temperature and normal pressure in a mass ratio of 60:12:4:24 to obtain the environment-friendly mixed working medium.
Example 16
Under the state of normal temperature and pressure and liquid phase, the mass ratio of the fluoroethane (R161), the 2,3,3, 3-tetrafluoropropene (R1234yf), the 1,1, 2-trifluoroethylene (R1123) and the trifluoroiodomethane (R13I1) is 64:12:4: 20. Namely, four components of fluoroethane (R161), 2,3,3, 3-tetrafluoropropene (R1234yf), 1, 2-trifluoroethylene (R1123) and trifluoroiodomethane (R13I1) are physically and uniformly mixed at the normal temperature and normal pressure in a mass ratio of 64:12:4:20 to obtain the environment-friendly mixed working medium.
Example 17
Under the state of normal temperature and pressure liquid phase, the mass ratio of the fluoroethane (R161), the 2,3,3, 3-tetrafluoropropene (R1234yf), the 1,1, 2-trifluoroethylene (R1123) and the trifluoroiodomethane (R13I1) is 64:8:4: 24; namely, four components of fluoroethane (R161), 2,3,3, 3-tetrafluoropropene (R1234yf), 1, 2-trifluoroethylene (R1123) and trifluoroiodomethane (R13I1) are physically and uniformly mixed at the normal temperature and normal pressure in a mass ratio of 64:8:4:24 to obtain the environment-friendly mixed working medium.
Example 18
Under the state of normal temperature and pressure liquid phase, the mass ratio of the fluoroethane (R161), the 2,3,3, 3-tetrafluoropropene (R1234yf), the 1,1, 2-trifluoroethylene (R1123) and the trifluoroiodomethane (R13I1) is 68:16:4: 12; namely, four components of fluoroethane (R161), 2,3,3, 3-tetrafluoropropene (R1234yf), 1, 2-trifluoroethylene (R1123) and trifluoroiodomethane (R13I1) are physically and uniformly mixed at the normal temperature and normal pressure in a mass ratio of 68:16:4:12 to obtain the environment-friendly mixed working medium.
Example 19
Under the state of normal temperature and pressure and liquid phase, the mass ratio of the fluoroethane (R161), the 3,3, 3-trifluoropropene (R1243zf), the 1,1, 2-trifluoroethylene (R1123) and the trifluoroiodomethane (R13I1) is 68:4:4: 24; namely, four components of fluoroethane (R161), 3,3, 3-trifluoropropene (R1243zf), 1, 2-trifluoroethylene (R1123) and trifluoroiodomethane (R13I1) are physically and uniformly mixed at the normal temperature and pressure in a liquid phase according to the mass ratio of 68:4:4:24 to obtain the environment-friendly mixed working medium.
Example 20
Under the state of normal temperature and pressure liquid phase, the mass ratio of the fluoroethane (R161), the 2,3,3, 3-tetrafluoropropene (R1234yf), the 1,1, 2-trifluoroethylene (R1123) and the trifluoroiodomethane (R13I1) is 72:4:4: 20; namely, four components of fluoroethane (R161), 2,3,3, 3-tetrafluoropropene (R1234yf), 1, 2-trifluoroethylene (R1123) and trifluoroiodomethane (R13I1) are physically and uniformly mixed at the normal temperature and normal pressure in a mass ratio of 72:4:4:20 to obtain the environment-friendly mixed working medium.
Example 21
Under the state of normal temperature and pressure and liquid phase, the mass ratio of the fluoroethane (R161), the 2,3,3, 3-tetrafluoropropene (R1234yf), the 1,1, 2-trifluoroethylene (R1123) and the trifluoroiodomethane (R13I1) is 76:4:8: 12. Namely, four components of fluoroethane (R161), 2,3,3, 3-tetrafluoropropene (R1234yf), 1, 2-trifluoroethylene (R1123) and trifluoroiodomethane (R13I1) are physically and uniformly mixed at the normal temperature and normal pressure in a mass ratio of 76:4:8:12 to obtain the environment-friendly mixed working medium.
Example 22
Under the state of normal temperature and pressure liquid phase, the mass ratio of the fluoroethane (R161), the 2,3,3, 3-tetrafluoropropene (R1234yf), the 1,1, 2-trifluoroethylene (R1123) and the trifluoroiodomethane (R13I1) is 80:4:4: 12; namely, four components of fluoroethane (R161), 2,3,3, 3-tetrafluoropropene (R1234yf), 1, 2-trifluoroethylene (R1123) and trifluoroiodomethane (R13I1) are physically and uniformly mixed at the normal temperature and normal pressure in a mass ratio of 80:4:4:12 to obtain the environment-friendly mixed working medium.
Example 23
Under the state of normal temperature and pressure liquid phase, the mass ratio of the fluoroethane (R161), the 2,3,3, 3-tetrafluoropropene (R1234yf), the 1,1, 2-trifluoroethylene (R1123) and the trifluoroiodomethane (R13I1) is 80:4:12: 4; namely, four components of fluoroethane (R161), 2,3,3, 3-tetrafluoropropene (R1234yf), 1, 2-trifluoroethylene (R1123) and trifluoroiodomethane (R13I1) are physically and uniformly mixed at the normal temperature and normal pressure in a mass ratio of 80:4:12:4 to obtain the environment-friendly mixed working medium.
Comparative example 1, fluoroethane (R161), 3,3, 3-trifluoropropene (R1243zf), 1, 2-trifluoroethylene (R1123) and trifluoroiodomethane (R13I1) are physically and uniformly mixed at normal temperature and normal pressure in a liquid phase according to a mass ratio of 32:16:8:44 to obtain the environment-friendly mixed working medium.
Comparative example 2, fluoroethane (R161), 3,3, 3-trifluoropropene (R1243zf), 1, 2-trifluoroethylene (R1123) and trifluoroiodomethane (R13I1) are physically and uniformly mixed at normal temperature and normal pressure in a liquid phase according to a mass ratio of 48:32:8:12 to obtain the environment-friendly mixed working medium.
Comparative example 3, fluoroethane (R161), 3,3, 3-trifluoropropene (R1243zf), 1, 2-trifluoroethylene (R1123) and trifluoroiodomethane (R13I1) are physically and uniformly mixed at normal temperature and normal pressure in a mass ratio of 52:16:20:12 to obtain the environment-friendly mixed working medium.
Comparative example 4, fluoroethane (R161), 2,3,3, 3-tetrafluoropropene (R1234yf), 1, 2-trifluoroethylene (R1123) and trifluoroiodomethane (R13I1) are physically and uniformly mixed according to the mass ratio of 36:16:8:40 under normal temperature and pressure liquid phase to obtain the environment-friendly mixed working medium.
Comparative example 5, fluoroethane (R161), 2,3,3, 3-tetrafluoropropene (R1234yf), 1, 2-trifluoroethylene (R1123) and trifluoroiodomethane (R13I1) are physically and uniformly mixed at normal temperature and normal pressure in a mass ratio of 48:36:12:4 to obtain the environment-friendly mixed working medium.
Comparative example 6, fluoroethane (R161), 2,3,3, 3-tetrafluoropropene (R1234yf), 1, 2-trifluoroethylene (R1123) and trifluoroiodomethane (R13I1) are physically and uniformly mixed according to the mass ratio of 48:12:28:12 under normal temperature and pressure liquid phase to obtain the environment-friendly mixed working medium.
The basic parameters of the mixed working fluid are shown in table 2.
TABLE 2 basic parameters of the mixed working substances
As can be seen from Table 2, the quaternary mixed working medium provided by the invention has excellent environmental protection performance, the GWP is less than 4 and is far lower than the GWP value of R134a, and the quaternary mixed working medium can completely meet the final target of carbon emission reduction in the Bulgarian amendments of the Montreal protocol.
The results of comparing the thermodynamic parameters (i.e., compression ratio and discharge temperature) and the relative thermodynamic properties (i.e., relative specific refrigerating capacity per unit volume and relative coefficient of performance (COP)) of the above examples and comparative examples with R134a under refrigeration conditions (i.e., 6 ℃ evaporation temperature, 36 ℃ condensation temperature, 5 ℃ superheat degree, 5 ℃ supercooling degree, and 0.75 adiabatic efficiency of the compressor) are shown in table 3.
TABLE 3 comparison of Performance of working mixtures with R134a
As can be seen from table 3, the thermal performance of the mixed refrigerant provided by the present invention is better than that of R134a, the volumetric cooling capacity of all embodiments is improved by more than 37% compared with that of R134a, the relative performance coefficients of all embodiments are greater than 0.98, and the relative performance coefficients of some embodiments are higher than that of R134a, so that the mixed refrigerant can be an environment-friendly refrigerant replacing R134 a.
Comparative examples 1-6 are not within the mass ratios provided herein, and by combining the examples with the comparative examples, it can be seen that the relative coefficient of performance of the comparative examples is small.
In conclusion, the quaternary mixed refrigerant provided by the invention not only has the environmental protection characteristics of low GWP and zero ODP, but also has better thermal performance than R134a refrigerant, and can better replace R134 a.
The above description is only exemplary of the present disclosure and should not be taken as limiting the disclosure, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present disclosure should be included in the scope of the present disclosure. The foregoing is only a preferred embodiment of the present disclosure, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present disclosure, and these modifications and variations should also be regarded as the protection scope of the present disclosure.
Claims (9)
1. A mixed refrigerant characterized by:
the mixed refrigerant is composed of a first component, a second component, a third component and a fourth component, wherein: the first component is fluoroethane, the second component is one of 3,3, 3-trifluoropropene and 2,3,3, 3-tetrafluoropropene, the third component is 1,1, 2-trifluoroethylene, and the fourth component is trifluoroiodomethane;
the mass ratio of the first component to the mixed refrigerant is 48-80%, the mass ratio of the second component to the mixed refrigerant is 4-16%, the mass ratio of the third component to the mixed refrigerant is 4-12%, and the mass ratio of the fourth component to the mixed refrigerant is 4-44%.
2. The mixed refrigerant according to claim 1, characterized in that:
under the state of normal temperature and pressure liquid phase, the mass ratio of fluoroethane, 3,3, 3-trifluoropropene, 1, 2-trifluoroethylene and trifluoroiodomethane is 48:4:4: 44; alternatively, the first and second electrodes may be,
under the state of normal temperature and pressure liquid phase, the mass ratio of fluoroethane, 3,3, 3-trifluoropropene, 1, 2-trifluoroethylene and trifluoroiodomethane is 52:4:4: 40; alternatively, the first and second electrodes may be,
under the state of normal temperature and pressure liquid phase, the mass ratio of fluoroethane, 3,3, 3-trifluoropropene, 1, 2-trifluoroethylene and trifluoroiodomethane is 56:4:4: 36; alternatively, the first and second electrodes may be,
under the state of normal temperature and pressure liquid phase, the mass ratio of the fluoroethane, the 3,3, 3-trifluoropropene, the 1,1, 2-trifluoroethylene and the trifluoroiodomethane is 60:8:4: 28.
3. The mixed refrigerant according to claim 1, characterized in that:
under the state of normal temperature and pressure liquid phase, the mass ratio of fluoroethane, 3,3, 3-trifluoropropene, 1, 2-trifluoroethylene and trifluoroiodomethane is 64:12:4: 20; alternatively, the first and second electrodes may be,
under the state of normal temperature and pressure liquid phase, the mass ratio of fluoroethane, 3,3, 3-trifluoropropene, 1, 2-trifluoroethylene and trifluoroiodomethane is 68:4:4: 24; alternatively, the first and second electrodes may be,
under the state of normal temperature and pressure liquid phase, the mass ratio of fluoroethane, 3,3, 3-trifluoropropene, 1, 2-trifluoroethylene and trifluoroiodomethane is 68:16:4: 12; alternatively, the first and second electrodes may be,
under the state of normal temperature and pressure liquid phase, the mass ratio of the fluoroethane, the 3,3, 3-trifluoropropene, the 1,1, 2-trifluoroethylene and the trifluoroiodomethane is 72:16:4: 8.
4. The mixed refrigerant according to claim 1, characterized in that:
under the state of normal temperature and pressure liquid phase, the mass ratio of fluoroethane, 3,3, 3-trifluoropropene, 1, 2-trifluoroethylene and trifluoroiodomethane is 76:4:8: 12; alternatively, the first and second electrodes may be,
under the state of normal temperature and pressure liquid phase, the mass ratio of fluoroethane, 3,3, 3-trifluoropropene, 1, 2-trifluoroethylene and trifluoroiodomethane is 76:16:4: 4; alternatively, the first and second electrodes may be,
under the state of normal temperature and pressure liquid phase, the mass ratio of fluoroethane, 3,3, 3-trifluoropropene, 1, 2-trifluoroethylene and trifluoroiodomethane is 80:4:4: 12; alternatively, the first and second electrodes may be,
under the state of normal temperature and pressure liquid phase, the mass ratio of the fluoroethane to the 2,3,3, 3-tetrafluoropropene to the 1,1, 2-trifluoroethylene to the trifluoroiodomethane is 48:4:4: 44.
5. The mixed refrigerant according to claim 1, characterized in that:
under the state of normal temperature and pressure liquid phase, the mass ratio of fluoroethane to 2,3,3, 3-tetrafluoropropene to 1,1, 2-trifluoroethylene to trifluoroiodomethane is 52:12:4: 32; alternatively, the first and second electrodes may be,
under the state of normal temperature and pressure liquid phase, the mass ratio of fluoroethane to 2,3,3, 3-tetrafluoropropene to 1,1, 2-trifluoroethylene to trifluoroiodomethane is 56:12:4: 28; alternatively, the first and second electrodes may be,
under the state of normal temperature and pressure liquid phase, the mass ratio of fluoroethane to 2,3,3, 3-tetrafluoropropene to 1,1, 2-trifluoroethylene to trifluoroiodomethane is 60:12:4: 24; alternatively, the first and second electrodes may be,
under the state of normal temperature and pressure liquid phase, the mass ratio of the fluoroethane to the 2,3,3, 3-tetrafluoropropene to the 1,1, 2-trifluoroethylene to the trifluoroiodomethane is 64:12:4: 20.
6. The mixed refrigerant according to claim 1, characterized in that:
under the state of normal temperature and pressure liquid phase, the mass ratio of fluoroethane to 2,3,3, 3-tetrafluoropropene to 1,1, 2-trifluoroethylene to trifluoroiodomethane is 64:8:4: 24; alternatively, the first and second electrodes may be,
under the state of normal temperature and pressure liquid phase, the mass ratio of fluoroethane to 2,3,3, 3-tetrafluoropropene to 1,1, 2-trifluoroethylene to trifluoroiodomethane is 68:16:4: 12; alternatively, the first and second electrodes may be,
under the state of normal temperature and pressure liquid phase, the mass ratio of fluoroethane, 3,3, 3-trifluoropropene, 1, 2-trifluoroethylene and trifluoroiodomethane is 68:4:4: 24; alternatively, the first and second electrodes may be,
under the state of normal temperature and pressure liquid phase, the mass ratio of the fluoroethane to the 2,3,3, 3-tetrafluoropropene to the 1,1, 2-trifluoroethylene to the trifluoroiodomethane is 72:4:4: 20.
7. The mixed refrigerant according to claim 1, characterized in that:
under the state of normal temperature and pressure liquid phase, the mass ratio of fluoroethane to 2,3,3, 3-tetrafluoropropene to 1,1, 2-trifluoroethylene to trifluoroiodomethane is 76:4:8: 12; alternatively, the first and second electrodes may be,
under the state of normal temperature and pressure liquid phase, the mass ratio of fluoroethane to 2,3,3, 3-tetrafluoropropene to 1,1, 2-trifluoroethylene to trifluoroiodomethane is 80:4:4: 12; alternatively, the first and second electrodes may be,
under the state of normal temperature and pressure liquid phase, the mass ratio of the fluoroethane to the 2,3,3, 3-tetrafluoropropene to the 1,1, 2-trifluoroethylene to the trifluoroiodomethane is 80:4:12: 4.
8. An air conditioning system characterized by:
comprising the mixed refrigerant according to any one of claims 1 to 7.
9. The air conditioning system of claim 8, wherein:
the air conditioning system is a vehicle air conditioning system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011587797.1A CN112760080B (en) | 2020-12-29 | 2020-12-29 | Mixed refrigerant and air conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011587797.1A CN112760080B (en) | 2020-12-29 | 2020-12-29 | Mixed refrigerant and air conditioning system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112760080A CN112760080A (en) | 2021-05-07 |
| CN112760080B true CN112760080B (en) | 2022-01-28 |
Family
ID=75696664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011587797.1A Active CN112760080B (en) | 2020-12-29 | 2020-12-29 | Mixed refrigerant and air conditioning system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112760080B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114045155B (en) * | 2021-11-29 | 2022-07-12 | 珠海格力电器股份有限公司 | Environment-friendly energy-saving refrigerant composition and preparation method and application thereof |
| CN115746792A (en) * | 2022-11-11 | 2023-03-07 | 大连斯频德环境设备有限公司 | Environment-friendly heat transfer working medium matched with constant-temperature and constant-humidity air conditioning system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107044739A (en) * | 2016-02-08 | 2017-08-15 | 捷客斯能源株式会社 | Refrigerator, the manufacture method of refrigerator and the method for improving COP |
| WO2019240205A1 (en) * | 2018-06-12 | 2019-12-19 | ダイキン工業株式会社 | Refrigerant-containing composition, heat transfer medium, and heat cycle system |
| WO2020071380A1 (en) * | 2018-10-01 | 2020-04-09 | Ａｇｃ株式会社 | Composition for heat cycle system, and heat cycle system |
| WO2020099857A1 (en) * | 2018-11-12 | 2020-05-22 | Mexichem Fluor S.A. De C.V. | Compositions |
-
2020
- 2020-12-29 CN CN202011587797.1A patent/CN112760080B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107044739A (en) * | 2016-02-08 | 2017-08-15 | 捷客斯能源株式会社 | Refrigerator, the manufacture method of refrigerator and the method for improving COP |
| WO2019240205A1 (en) * | 2018-06-12 | 2019-12-19 | ダイキン工業株式会社 | Refrigerant-containing composition, heat transfer medium, and heat cycle system |
| WO2020071380A1 (en) * | 2018-10-01 | 2020-04-09 | Ａｇｃ株式会社 | Composition for heat cycle system, and heat cycle system |
| WO2020099857A1 (en) * | 2018-11-12 | 2020-05-22 | Mexichem Fluor S.A. De C.V. | Compositions |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112760080A (en) | 2021-05-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8168077B2 (en) | Refrigerant compositions and use thereof in low temperature refrigeration systems | |
| CN112760080B (en) | Mixed refrigerant and air conditioning system | |
| CN112745803B (en) | Mixed refrigerant and air conditioning system | |
| WO2011038570A1 (en) | Refrigerant composition | |
| CN110878194B (en) | R13I 1-containing environment-friendly mixed refrigerant and heat exchange system | |
| KR100492169B1 (en) | R502 and r22 substitute mixed refrigerant and refrigeration system using thereof | |
| CN110591652B (en) | Heat transfer composition and heat exchange system | |
| CN113980649A (en) | Mixed refrigerant and air conditioning system | |
| CN114940888B (en) | Refrigerant and preparation method thereof | |
| CN111944490B (en) | Mixed refrigerant, refrigerating system and air conditioner | |
| CN110819304B (en) | Low-flammability heat exchange medium and heat exchange system | |
| CN113025279B (en) | Composition containing fluoroolefin and preparation method thereof | |
| CN113388370B (en) | Ternary mixed refrigerant capable of replacing R134a and application thereof | |
| KR100540285B1 (en) | R12 and r22 substitute mixed refrigerant and refrigeration system using thereof | |
| CN101671544B (en) | Refrigerant composition | |
| KR100540286B1 (en) | R12 substitute mixed refrigerant and refrigeration system using thereof | |
| KR101104108B1 (en) | refrigerant mixture of R32 and R134a for drop in replacement of R22 | |
| CN116814219A (en) | Mixed refrigerant and preparation method thereof | |
| CN114989784A (en) | Refrigerant and preparation method thereof | |
| CN115160990A (en) | Environment-friendly energy-saving composition, preparation method and application thereof, and refrigeration system | |
| CN117431037A (en) | Environment-friendly mixed refrigerant and preparation method and application thereof | |
| KR100633732B1 (en) | R22 substitute mixed refrigerant | |
| KR100540282B1 (en) | R502 and r22 substitute mixed refrigerant and refrigeration system using thereof | |
| KR100540284B1 (en) | R12 or r22 substitute mixed refrigerant and refrigeration system using thereof | |
| KR100633731B1 (en) | R12 and r134a substitute mixed refrigerant |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |