CN111944490A - Mixed refrigerant, refrigerating system and air conditioner - Google Patents

Mixed refrigerant, refrigerating system and air conditioner Download PDF

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CN111944490A
CN111944490A CN202010759548.XA CN202010759548A CN111944490A CN 111944490 A CN111944490 A CN 111944490A CN 202010759548 A CN202010759548 A CN 202010759548A CN 111944490 A CN111944490 A CN 111944490A
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heptafluoropropane
ammonia
mass ratio
liquid phase
pressure
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CN111944490B (en
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雷佩玉
于艳翠
钟权
赵桓
黄宇杰
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Gree Electric Appliances Inc of Zhuhai
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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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
    • F25B9/002—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant
    • F25B9/006—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant the refrigerant containing more than one component
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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
    • C09K2205/10—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
    • 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
    • C09K2205/132—Components containing nitrogen

Abstract

The invention provides a mixed refrigerant, a refrigerating system and an air conditioner, wherein the mixed refrigerant comprises a first component, a second component and a third component, wherein: the first component is 1,1,1,2,3,3, 3-heptafluoropropane, the second component is ammonia, and the third component is 1,1, 1-trifluoroethane or trans-1-chloro-3, 3, 3-trifluoropropene. The mixed refrigerant has low GWP and good thermal performance, the COP of the mixed refrigerant can reach 108 percent of R134a, the volumetric refrigerating capacity can reach about 173 percent of R134a, the problem of high GWP of other alternative R134a refrigerants is effectively solved, and the problem of poor thermal performance of other refrigerants is also solved.

Description

Mixed refrigerant, refrigerating system and air conditioner
Technical Field
The invention belongs to the technical field of refrigeration, and particularly relates to a mixed refrigerant, a refrigeration system and an air conditioner.
Background
With the trend of environmental protection becoming more serious, and with respect to the "greenhouse effect" of HFCs, the montreal protocol amendment requires a refrigerant which is not ozone-depleting and has a low GWP value to replace the current high GWP refrigerant, and is effectively applied to air conditioning systems. At present, a perfect alternative scheme is not found, and because the mixed working medium has the characteristic of balancing the physical properties of the refrigerant, the possibility of mixing various refrigerants to prepare a novel safe and environment-friendly refrigerant is realized.
Patent No. 201910050560.0 proposes a mixed refrigerant that replaces R134a, but the thermodynamic performance of the replaced mixed refrigerant is only comparable to R134a, and even worse than R134 a. Patent No. 201210165278.5 also proposes a low GWP refrigerant to replace the R134a refrigerant, although some examples of this refrigerant have a COP that is worse than R134 a.
Because the technical problems that the refrigerant in the prior art cannot simultaneously ensure low GWP value and high thermal performance (including COP, volume refrigerating capacity and the like) and the like, the invention researches and designs a mixed refrigerant, a refrigerating system and an air conditioner.
Disclosure of Invention
Therefore, the technical problem to be solved by the present invention is to overcome the defect that the refrigerants in the prior art cannot simultaneously ensure low GWP value and high thermal performance, thereby providing a mixed refrigerant, a refrigeration system and an air conditioner.
The present invention provides a mixed refrigerant, wherein:
comprising a first component, a second component and a third component, wherein: the first component is 1,1,1,2,3,3, 3-heptafluoropropane, the second component is ammonia, and the third component is 1,1, 1-trifluoroethane or trans-1-chloro-3, 3, 3-trifluoropropene.
Preferably, the 1,1,1,2,3,3, 3-heptafluoropropane accounts for 4-16% by mass of the mixed refrigerant, the ammonia accounts for 68-92% by mass of the mixed refrigerant, and the 1,1, 1-trifluoroethane or trans-1-chloro-3, 3, 3-trifluoropropene accounts for 4-16% by mass of the mixed refrigerant.
Preferably, in a state of normal temperature and normal pressure liquid phase, the mass ratio of the 1,1,1,2,3,3, 3-heptafluoropropane to the ammonia to the 1,1, 1-trifluoroethane is 4:88: 8; alternatively, the first and second electrodes may be,
under the state of normal temperature and pressure liquid phase, the mass ratio of the 1,1,1,2,3,3, 3-heptafluoropropane to the ammonia to the 1,1, 1-trifluoroethane is 4:92: 4; alternatively, the first and second electrodes may be,
under the state of normal temperature and pressure liquid phase, the mass ratio of the 1,1,1,2,3,3, 3-heptafluoropropane to the ammonia to the 1,1, 1-trifluoroethane is 8:88: 4; alternatively, the first and second electrodes may be,
under the state of normal-temperature normal-pressure liquid phase, the mass ratio of the 1,1,1,2,3,3, 3-heptafluoropropane to the ammonia to the 1,1, 1-trifluoroethane is 12:84: 4.
Preferably, in a state of normal temperature and pressure liquid phase, the mass ratio of the 1,1,1,2,3,3, 3-heptafluoropropane to the ammonia to the trans-1-chloro-3, 3, 3-trifluoropropene is 4:80: 16; alternatively, the first and second electrodes may be,
under the state of normal temperature and pressure liquid phase, the mass ratio of the 1,1,1,2,3,3, 3-heptafluoropropane to the ammonia to the trans-1-chloro-3, 3, 3-trifluoropropene is 4:84: 12; alternatively, the first and second electrodes may be,
under the state of normal temperature and pressure liquid phase, the mass ratio of the 1,1,1,2,3,3, 3-heptafluoropropane to the ammonia to the trans-1-chloro-3, 3, 3-trifluoropropene is 4:88: 8; alternatively, the first and second electrodes may be,
under the state of normal temperature and pressure liquid phase, the mass ratio of the 1,1,1,2,3,3, 3-heptafluoropropane to the ammonia to the trans-1-chloro-3, 3, 3-trifluoropropene is 4:92: 4.
Preferably, in a state of normal temperature and pressure liquid phase, the mass ratio of the 1,1,1,2,3,3, 3-heptafluoropropane to the ammonia to the trans-1-chloro-3, 3, 3-trifluoropropene is 8:76: 16; alternatively, the first and second electrodes may be,
under the state of normal temperature and pressure liquid phase, the mass ratio of the 1,1,1,2,3,3, 3-heptafluoropropane to the ammonia to the trans-1-chloro-3, 3, 3-trifluoropropene is 8:80: 12; alternatively, the first and second electrodes may be,
under the state of normal temperature and pressure liquid phase, the mass ratio of the 1,1,1,2,3,3, 3-heptafluoropropane to the ammonia to the trans-1-chloro-3, 3, 3-trifluoropropene is 8:84: 8; alternatively, the first and second electrodes may be,
under the state of normal temperature and pressure liquid phase, the mass ratio of the 1,1,1,2,3,3, 3-heptafluoropropane to the ammonia to the trans-1-chloro-3, 3, 3-trifluoropropene is 8:88: 4.
Preferably, in a state of normal temperature and pressure liquid phase, the mass ratio of the 1,1,1,2,3,3, 3-heptafluoropropane to the ammonia to the trans-1-chloro-3, 3, 3-trifluoropropene is 12:72: 16; alternatively, the first and second electrodes may be,
under the state of normal temperature and pressure liquid phase, the mass ratio of the 1,1,1,2,3,3, 3-heptafluoropropane to the ammonia to the trans-1-chloro-3, 3, 3-trifluoropropene is 12:76: 12; alternatively, the first and second electrodes may be,
under the state of normal temperature and pressure liquid phase, the mass ratio of the 1,1,1,2,3,3, 3-heptafluoropropane to the ammonia to the trans-1-chloro-3, 3, 3-trifluoropropene is 12:80: 8; alternatively, the first and second electrodes may be,
under the state of normal temperature and pressure liquid phase, the mass ratio of the 1,1,1,2,3,3, 3-heptafluoropropane to the ammonia to the trans-1-chloro-3, 3, 3-trifluoropropene is 12:84: 4.
Preferably, in a state of normal temperature and pressure liquid phase, the mass ratio of the 1,1,1,2,3,3, 3-heptafluoropropane to the ammonia to the trans-1-chloro-3, 3, 3-trifluoropropene is 16:68: 16; alternatively, the first and second electrodes may be,
under the state of normal temperature and pressure liquid phase, the mass ratio of the 1,1,1,2,3,3, 3-heptafluoropropane to the ammonia to the trans-1-chloro-3, 3, 3-trifluoropropene is 16:72: 12; alternatively, the first and second electrodes may be,
under the state of normal temperature and pressure liquid phase, the mass ratio of the 1,1,1,2,3,3, 3-heptafluoropropane to the ammonia to the trans-1-chloro-3, 3, 3-trifluoropropene is 16:76: 8; alternatively, the first and second electrodes may be,
under the state of normal temperature and pressure liquid phase, the mass ratio of the 1,1,1,2,3,3, 3-heptafluoropropane to the ammonia to the trans-1-chloro-3, 3, 3-trifluoropropene is 16:80: 4.
The present invention also provides a refrigeration system, wherein:
comprising the mixed refrigerant of any one of the preceding claims.
The invention also provides an air conditioner which comprises the refrigerating system.
The mixed refrigerant, the refrigerating system and the air conditioner provided by the invention have the following beneficial effects:
the invention provides a ternary environment-friendly mixed refrigerant, namely, four components of 1,1,1,2,3,3, 3-heptafluoropropane (R227ea), ammonia (R717), 1,1, 1-trifluoroethane (R143a) and trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)) are physically mixed into a ternary mixture (namely, the mixed refrigerant is composed of three different refrigerants) according to corresponding mass ratio under normal temperature and pressure liquid phase states, the mixed refrigerant has low GWP and good thermodynamic performance, the COP of the mixed refrigerant can reach 108% of R134a, the volume refrigerating capacity can reach about 173% of R134a, the problem that the GWP of other alternative R134a refrigerants is higher is effectively solved, and the problem that the thermodynamic performance of other refrigerants is poor is also solved.
Detailed Description
The present invention provides a mixed refrigerant, wherein:
comprising a first component, a second component and a third component, wherein: the first component is 1,1,1,2,3,3, 3-heptafluoropropane (R227ea, which is a type of refrigerant, the same applies hereinafter), the second component is ammonia (R717), and the third component is 1,1, 1-trifluoroethane (R143a) or trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)).
The invention provides a ternary environment-friendly mixed refrigerant, namely, four components of 1,1,1,2,3,3, 3-heptafluoropropane (R227ea), ammonia (R717), 1,1, 1-trifluoroethane (R143a) and trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)) are physically mixed into a ternary mixture (namely, the mixed refrigerant is composed of three different refrigerants) according to corresponding mass ratio under normal temperature and pressure liquid phase states, the mixed refrigerant has low GWP and good thermodynamic performance, the COP of the mixed refrigerant can reach 108% of R134a, the volume refrigerating capacity can reach about 173% of R134a, the problem that the GWP of other alternative R134a refrigerants is higher is effectively solved, and the problem that the thermodynamic performance of other refrigerants is poor is also solved.
Preferably, the 1,1,1,2,3,3, 3-heptafluoropropane (R227ea) occupies 4 to 16% by mass of the mixed refrigerant, the ammonia (R717) occupies 68 to 92% by mass of the mixed refrigerant, and the 1,1, 1-trifluoroethane (R143a) or trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)) occupies 4 to 16% by mass of the mixed refrigerant.
The first component is 1,1,1,2,3,3, 3-heptafluoropropane (R227ea), the second component is ammonia (R717), and the third component is one of 1,1, 1-trifluoroethane (R143a) and trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)). And the environment-friendly mixed refrigerant comprises 4-16% of 1,1,1,2,3,3, 3-heptafluoropropane (R227ea), 68-92% of ammonia (R717) and 4-16% of a third component by mass percentage. Under the condition that the three components meet the mass ratio, the environment-friendly mixed refrigerant has good thermal performance (COP and volume refrigerating capacity), low GWP and optimal comprehensive performance in two aspects.
TABLE 1 basic parameters of the constituent substances in the mixed working fluid
Figure BDA0002612681720000051
Figure BDA0002612681720000061
Preferably, the first and second electrodes are formed of a metal,
in example 1,1,2,3,3, 3-heptafluoropropane (R227ea), ammonia (R717) and 1,1, 1-trifluoroethane (R143a) were physically and uniformly mixed at room temperature and normal pressure in a liquid phase at a mass ratio of 4:88:8 to obtain an environment-friendly mixed working medium.
Namely, in a state of a liquid phase at normal temperature and pressure, the mass ratio of the 1,1,1,2,3,3, 3-heptafluoropropane (R227ea), the ammonia (R717) and the 1,1, 1-trifluoroethane (R143a) is 4:88: 8.
Example 2, three components of 1,1,1,2,3,3, 3-heptafluoropropane (R227ea), ammonia (R717) and 1,1, 1-trifluoroethane (R143a) are physically and uniformly mixed at normal temperature and normal pressure in a mass ratio of 4:92:4 to obtain an environment-friendly mixed working medium.
Namely, in a state of a liquid phase at normal temperature and pressure, the mass ratio of the 1,1,1,2,3,3, 3-heptafluoropropane (R227ea), the ammonia (R717) and the 1,1, 1-trifluoroethane (R143a) is 4:92: 4.
Example 3, three components of 1,1,1,2,3,3, 3-heptafluoropropane (R227ea), ammonia (R717) and 1,1, 1-trifluoroethane (R143a) are physically and uniformly mixed at normal temperature and normal pressure in a mass ratio of 8:88:4 to obtain an environment-friendly mixed working medium.
Namely, in a state of a liquid phase at normal temperature and pressure, the mass ratio of the 1,1,1,2,3,3, 3-heptafluoropropane (R227ea), the ammonia (R717) and the 1,1, 1-trifluoroethane (R143a) is 8:88: 4.
Example 4, three components of 1,1,1,2,3,3, 3-heptafluoropropane (R227ea), ammonia (R717) and 1,1, 1-trifluoroethane (R143a) are physically and uniformly mixed at normal temperature and normal pressure in a mass ratio of 12:84:4 to obtain an environment-friendly mixed working medium.
Namely, in a state of a liquid phase at normal temperature and pressure, the mass ratio of the 1,1,1,2,3,3, 3-heptafluoropropane (R227ea), the ammonia (R717) and the 1,1, 1-trifluoroethane (R143a) is 12:84: 4.
Preferably, the first and second electrodes are formed of a metal,
example 5, three components of 1,1,1,2,3,3, 3-heptafluoropropane (R227ea), ammonia (R717) and trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)) were physically and uniformly mixed at normal temperature and pressure in a liquid phase at a mass ratio of 4:80:16 to obtain an environmentally friendly working mixture.
That is, in a state of a liquid phase at normal temperature and pressure, the mass ratio of the 1,1,1,2,3,3, 3-heptafluoropropane (R227ea), the ammonia (R717) and the trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)) is 4:80: 16.
Example 6, 1,1,1,2,3,3, 3-heptafluoropropane (R227ea), ammonia (R717) and trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)) were physically and uniformly mixed at room temperature and normal pressure in a liquid phase at a mass ratio of 4:84:12 to obtain an environmentally friendly working mixture.
That is, in a state of a liquid phase at normal temperature and pressure, the mass ratio of the 1,1,1,2,3,3, 3-heptafluoropropane (R227ea), the ammonia (R717) and the trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)) is 4:84: 12.
Example 7 an environmentally friendly working fluid mixture was obtained by physically and uniformly mixing three components, 1,1,1,2,3,3, 3-heptafluoropropane (R227ea), ammonia (R717) and trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)) at room temperature under normal pressure in a liquid phase at a mass ratio of 4:88: 8.
That is, in a state of a liquid phase at normal temperature and pressure, the mass ratio of the 1,1,1,2,3,3, 3-heptafluoropropane (R227ea), the ammonia (R717) and the trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)) is 4:88: 8.
Example 8, an environment-friendly working mixture was obtained by physically and uniformly mixing three components, 1,1,1,2,3,3, 3-heptafluoropropane (R227ea), ammonia (R717) and trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)), at room temperature and under normal pressure in a liquid phase at a mass ratio of 4:92: 4.
That is, in a state of a liquid phase at normal temperature and pressure, the mass ratio of the 1,1,1,2,3,3, 3-heptafluoropropane (R227ea), the ammonia (R717) and the trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)) is 4:92: 4.
Preferably, the first and second electrodes are formed of a metal,
example 9 an environmentally friendly working fluid mixture was prepared by physically and uniformly mixing three components, 1,1,1,2,3,3, 3-heptafluoropropane (R227ea), ammonia (R717) and trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)), at room temperature and pressure in a liquid phase at a mass ratio of 8:76: 16.
That is, in a state of a liquid phase at normal temperature and pressure, the mass ratio of the 1,1,1,2,3,3, 3-heptafluoropropane (R227ea), the ammonia (R717) and the trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)) is 8:76: 16.
Example 10 an environmentally friendly working fluid mixture was prepared by physically and uniformly mixing three components, 1,1,1,2,3,3, 3-heptafluoropropane (R227ea), ammonia (R717) and trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)), at room temperature and pressure in a liquid phase at a mass ratio of 8:80: 12.
That is, in a state of a liquid phase at normal temperature and pressure, the mass ratio of the 1,1,1,2,3,3, 3-heptafluoropropane (R227ea), the ammonia (R717) and the trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)) is 8:80: 12.
Example 11 an environmentally friendly working fluid mixture was prepared by physically and uniformly mixing three components, 1,1,1,2,3,3, 3-heptafluoropropane (R227ea), ammonia (R717) and trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)), at room temperature and pressure in a liquid phase at a mass ratio of 8:84: 8.
That is, in a state of a liquid phase at normal temperature and pressure, the mass ratio of the 1,1,1,2,3,3, 3-heptafluoropropane (R227ea), the ammonia (R717) and the trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)) is 8:84: 8.
Example 12 an environmentally friendly working fluid mixture was prepared by physically and uniformly mixing three components, 1,1,1,2,3,3, 3-heptafluoropropane (R227ea), ammonia (R717) and trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)), at room temperature and pressure in a liquid phase at a mass ratio of 8:88: 4.
That is, in a state of a liquid phase at normal temperature and pressure, the mass ratio of the 1,1,1,2,3,3, 3-heptafluoropropane (R227ea), the ammonia (R717) and the trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)) is 8:88: 4.
Preferably, the first and second electrodes are formed of a metal,
example 13, an environmentally friendly working fluid mixture was obtained by physically and uniformly mixing three components, 1,1,1,2,3,3, 3-heptafluoropropane (R227ea), ammonia (R717) and trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)), at room temperature and under normal pressure in a liquid phase at a mass ratio of 12:72: 16.
That is, in a state of a liquid phase at normal temperature and pressure, the mass ratio of the 1,1,1,2,3,3, 3-heptafluoropropane (R227ea), the ammonia (R717) and the trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)) is 12:72: 16.
Example 14, an environmentally friendly working fluid mixture was obtained by physically and uniformly mixing three components, 1,1,1,2,3,3, 3-heptafluoropropane (R227ea), ammonia (R717) and trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)), at room temperature and under normal pressure in a liquid phase at a mass ratio of 12:76: 12.
That is, in a liquid phase state at normal temperature and pressure, the mass ratio of the 1,1,1,2,3,3, 3-heptafluoropropane (R227ea), the ammonia (R717) and the trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)) is 12:76: 12.
Example 15, an environmentally friendly working fluid mixture was obtained by physically and uniformly mixing three components, 1,1,1,2,3,3, 3-heptafluoropropane (R227ea), ammonia (R717) and trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)), at room temperature and under normal pressure in a liquid phase at a mass ratio of 12:80: 8.
That is, in a state of a liquid phase at normal temperature and pressure, the mass ratio of the 1,1,1,2,3,3, 3-heptafluoropropane (R227ea), the ammonia (R717) and the trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)) is 12:80: 8.
Example 16, an environmentally friendly working fluid mixture was obtained by physically and uniformly mixing three components, 1,1,1,2,3,3, 3-heptafluoropropane (R227ea), ammonia (R717) and trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)), at room temperature and under normal pressure in a liquid phase at a mass ratio of 12:84: 4.
That is, in a state of a liquid phase at normal temperature and pressure, the mass ratio of the 1,1,1,2,3,3, 3-heptafluoropropane (R227ea), the ammonia (R717) and the trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)) is 12:84: 4.
Preferably, the first and second electrodes are formed of a metal,
example 17 an environmentally friendly working fluid mixture was prepared by physically and uniformly mixing three components, 1,1,1,2,3,3, 3-heptafluoropropane (R227ea), ammonia (R717) and trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)), at room temperature and pressure in a liquid phase at a mass ratio of 16:68: 16.
That is, in a state of a liquid phase at normal temperature and pressure, the mass ratio of the 1,1,1,2,3,3, 3-heptafluoropropane (R227ea), the ammonia (R717) and the trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)) is 16:68: 16.
Example 18 an environmentally friendly working fluid mixture was prepared by physically and uniformly mixing three components, 1,1,1,2,3,3, 3-heptafluoropropane (R227ea), ammonia (R717) and trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)), at room temperature and pressure in a liquid phase at a mass ratio of 16:72: 12.
That is, in a state of a liquid phase at normal temperature and pressure, the mass ratio of the 1,1,1,2,3,3, 3-heptafluoropropane (R227ea), the ammonia (R717) and the trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)) is 16:72: 12.
Example 19 an environmentally friendly working fluid mixture was prepared by physically and uniformly mixing three components, 1,1,1,2,3,3, 3-heptafluoropropane (R227ea), ammonia (R717) and trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)), at room temperature and pressure in a liquid phase at a mass ratio of 16:76: 8.
That is, in a state of a liquid phase at normal temperature and pressure, the mass ratio of the 1,1,1,2,3,3, 3-heptafluoropropane (R227ea), the ammonia (R717) and the trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)) is 16:76: 8.
Example 20 an environmentally friendly working fluid mixture was prepared by physically and uniformly mixing three components, 1,1,1,2,3,3, 3-heptafluoropropane (R227ea), ammonia (R717) and trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)), at room temperature and pressure in a liquid phase at a mass ratio of 16:80: 4.
That is, in a state of a liquid phase at normal temperature and pressure, the mass ratio of the 1,1,1,2,3,3, 3-heptafluoropropane (R227ea), the ammonia (R717) and the trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)) is 16:80: 4.
Comparative example 1 (comparative example, for comparison with examples 1 to 20 of the present invention, which shows that the refrigerant not in the range of the examples of the present invention does not achieve the effect of the present invention), three components of 1,1,1,2,3,3, 3-heptafluoropropane (R227ea), ammonia (R717) and trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)) were physically mixed uniformly at normal temperature and pressure in a liquid phase at a mass ratio of 60:4:36 to obtain a mixed working fluid.
Comparative example 2, three components of 1,1,1,2,3,3, 3-heptafluoropropane (R227ea), ammonia (R717) and 1,1, 1-trifluoroethane (R143a) are physically and uniformly mixed at normal temperature and normal pressure in a liquid phase according to a mass ratio of 20:4:76 to obtain a mixed working medium.
Comparative example 3, two components of 1,1,1,2,3,3, 3-heptafluoropropane (R227ea) and ammonia (R717) are physically and uniformly mixed at normal temperature and normal pressure in a liquid phase according to a mass ratio of 85:15 to obtain a mixed working medium.
Comparative example 4, the two components of ammonia (R717) and 1,1, 1-trifluoroethane (R143a) are physically mixed evenly at normal temperature and normal pressure according to the mass ratio of 10:90 to obtain a mixed working medium.
Comparative example 5, two components, 1,1,1,2,3,3, 3-heptafluoropropane (R227ea) and 1,1, 1-trifluoroethane (R143a), were physically and uniformly mixed at normal temperature and pressure in a liquid phase at a mass ratio of 50:50 to obtain a working mixture.
Comparative example 6, two components of trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)) and ammonia (R717) are physically and uniformly mixed at normal temperature and normal pressure in a liquid phase according to a mass ratio of 85:15 to obtain a mixed working medium.
Comparative example 7, a working mixture was obtained by physically and uniformly mixing trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)) and 1,1,1,2,3,3, 3-heptafluoropropane (R227ea) at a mass ratio of 20:80 under normal temperature and pressure in a liquid phase.
Table 2 compares the mixed working fluids of the above examples and comparative examples with basic parameters of R134a, such as molecular weight, normal boiling point, and environmental performance.
TABLE 2 basic parameters of the mixed working substances
Figure BDA0002612681720000111
Figure BDA0002612681720000121
As can be seen from Table 2, the environmental performance of the mixed working medium provided by the invention is far better than that of R134a, and the GWP of the mixed working medium is less than 600. The slippage temperature of the mixed working medium is small, the mixed working medium belongs to a near-azeotropic mixture, the adverse effect caused by the temperature slippage is eliminated, and the problem of refilling after the refrigerant leakage is not considered (the temperature slippage is used for judging whether the mixture is an azeotropic refrigerant or a non-azeotropic refrigerant, the low condition indicates that the mixture is the azeotropic refrigerant, and the high condition indicates that the mixture is the non-azeotropic refrigerant).
The content of the mixed working medium of the comparative example is out of the range of the invention, except for the comparative example 5, the GWP of other comparative examples is more than 600, and the environmental protection performance is far different from that of the examples. And most of the comparative examples have larger slip temperature, and once the refrigerant leaks, the refrigerant needs to be refilled, so that the method is not economical.
Table 3 compares the thermodynamic parameters (i.e. compression ratio and exhaust temperature) and relative thermodynamic properties (i.e. relative refrigerating output per unit volume and relative COP) of the mixed working fluids in the above examples and comparative examples under the refrigeration condition (i.e. evaporation temperature of 6 ℃, condensation temperature of 36 ℃, superheat degree of 5 ℃ and supercooling degree of 5 ℃) with R134 a.
TABLE 3 comparison of Performance of working mixtures with R134a
Figure BDA0002612681720000131
Figure BDA0002612681720000141
As can be seen from Table 3, the thermal performance, namely the volume heating capacity and the efficiency COP value of the mixed working medium provided by the invention are superior to R134a, the COP of the mixed refrigerant can reach 108% of R134a, and the volume cooling capacity can reach about 173% of R134a, so that the mixed working medium can be an environment-friendly refrigerant for replacing R134 a. The thermal performance of the mixed working medium in the comparative example is smaller than that of R134a, and the energy efficiency requirement cannot be met.
The invention also provides a refrigeration system comprising the mixed refrigerant of any one of the preceding claims.
The invention also provides an air conditioner which comprises the refrigerating system.
The invention provides a ternary environment-friendly mixed refrigerant, namely, four components of 1,1,1,2,3,3, 3-heptafluoropropane (R227ea), ammonia (R717), 1,1, 1-trifluoroethane (R143a) and trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)) are physically mixed into a ternary mixture (namely, the mixed refrigerant is composed of three different refrigerants) according to corresponding mass ratio under normal temperature and pressure liquid phase states, the mixed refrigerant has low GWP and good thermodynamic performance, the COP of the mixed refrigerant can reach 108% of R134a, the volume refrigerating capacity can reach about 173% of R134a, the problem that the GWP of other alternative R134a refrigerants is higher is effectively solved, and the problem of poor thermodynamic performance of the refrigerant is also solved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention. The above description is only a preferred embodiment of the present invention, 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 invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims (9)

1. A mixed refrigerant characterized by:
comprising a first component, a second component and a third component, wherein: the first component is 1,1,1,2,3,3, 3-heptafluoropropane, the second component is ammonia, and the third component is 1,1, 1-trifluoroethane or trans-1-chloro-3, 3, 3-trifluoropropene.
2. The mixed refrigerant according to claim 1, characterized in that:
the mass percentage of the 1,1,1,2,3,3, 3-heptafluoropropane to the mixed refrigerant is 4-16%, the mass percentage of ammonia to the mixed refrigerant is 68-92%, and the mass percentage of the 1,1, 1-trifluoroethane or trans-1-chloro-3, 3, 3-trifluoropropene to the mixed refrigerant is 4-16%.
3. The mixed refrigerant according to claim 2, characterized in that:
under the state of normal temperature and pressure liquid phase, the mass ratio of the 1,1,1,2,3,3, 3-heptafluoropropane to the ammonia to the 1,1, 1-trifluoroethane is 4:88: 8; alternatively, the first and second electrodes may be,
under the state of normal temperature and pressure liquid phase, the mass ratio of the 1,1,1,2,3,3, 3-heptafluoropropane to the ammonia to the 1,1, 1-trifluoroethane is 4:92: 4; alternatively, the first and second electrodes may be,
under the state of normal temperature and pressure liquid phase, the mass ratio of the 1,1,1,2,3,3, 3-heptafluoropropane to the ammonia to the 1,1, 1-trifluoroethane is 8:88: 4; alternatively, the first and second electrodes may be,
under the state of normal-temperature normal-pressure liquid phase, the mass ratio of the 1,1,1,2,3,3, 3-heptafluoropropane to the ammonia to the 1,1, 1-trifluoroethane is 12:84: 4.
4. The mixed refrigerant according to claim 2 or 3, wherein:
under the state of normal temperature and pressure liquid phase, the mass ratio of the 1,1,1,2,3,3, 3-heptafluoropropane to the ammonia to the trans-1-chloro-3, 3, 3-trifluoropropene is 4:80: 16; alternatively, the first and second electrodes may be,
under the state of normal temperature and pressure liquid phase, the mass ratio of the 1,1,1,2,3,3, 3-heptafluoropropane to the ammonia to the trans-1-chloro-3, 3, 3-trifluoropropene is 4:84: 12; alternatively, the first and second electrodes may be,
under the state of normal temperature and pressure liquid phase, the mass ratio of the 1,1,1,2,3,3, 3-heptafluoropropane to the ammonia to the trans-1-chloro-3, 3, 3-trifluoropropene is 4:88: 8; alternatively, the first and second electrodes may be,
under the state of normal temperature and pressure liquid phase, the mass ratio of the 1,1,1,2,3,3, 3-heptafluoropropane to the ammonia to the trans-1-chloro-3, 3, 3-trifluoropropene is 4:92: 4.
5. The mixed refrigerant according to any one of claims 2 to 4, characterized in that:
under the state of normal temperature and pressure liquid phase, the mass ratio of the 1,1,1,2,3,3, 3-heptafluoropropane to the ammonia to the trans-1-chloro-3, 3, 3-trifluoropropene is 8:76: 16; alternatively, the first and second electrodes may be,
under the state of normal temperature and pressure liquid phase, the mass ratio of the 1,1,1,2,3,3, 3-heptafluoropropane to the ammonia to the trans-1-chloro-3, 3, 3-trifluoropropene is 8:80: 12; alternatively, the first and second electrodes may be,
under the state of normal temperature and pressure liquid phase, the mass ratio of the 1,1,1,2,3,3, 3-heptafluoropropane to the ammonia to the trans-1-chloro-3, 3, 3-trifluoropropene is 8:84: 8; alternatively, the first and second electrodes may be,
under the state of normal temperature and pressure liquid phase, the mass ratio of the 1,1,1,2,3,3, 3-heptafluoropropane to the ammonia to the trans-1-chloro-3, 3, 3-trifluoropropene is 8:88: 4.
6. The mixed refrigerant according to any one of claims 2 to 5, characterized in that:
under the state of normal temperature and pressure liquid phase, the mass ratio of the 1,1,1,2,3,3, 3-heptafluoropropane to the ammonia to the trans-1-chloro-3, 3, 3-trifluoropropene is 12:72: 16; alternatively, the first and second electrodes may be,
under the state of normal temperature and pressure liquid phase, the mass ratio of the 1,1,1,2,3,3, 3-heptafluoropropane to the ammonia to the trans-1-chloro-3, 3, 3-trifluoropropene is 12:76: 12; alternatively, the first and second electrodes may be,
under the state of normal temperature and pressure liquid phase, the mass ratio of the 1,1,1,2,3,3, 3-heptafluoropropane to the ammonia to the trans-1-chloro-3, 3, 3-trifluoropropene is 12:80: 8; alternatively, the first and second electrodes may be,
under the state of normal temperature and pressure liquid phase, the mass ratio of the 1,1,1,2,3,3, 3-heptafluoropropane to the ammonia to the trans-1-chloro-3, 3, 3-trifluoropropene is 12:84: 4.
7. The mixed refrigerant according to any one of claims 2 to 6, characterized in that:
under the state of normal temperature and pressure liquid phase, the mass ratio of the 1,1,1,2,3,3, 3-heptafluoropropane to the ammonia to the trans-1-chloro-3, 3, 3-trifluoropropene is 16:68: 16; alternatively, the first and second electrodes may be,
under the state of normal temperature and pressure liquid phase, the mass ratio of the 1,1,1,2,3,3, 3-heptafluoropropane to the ammonia to the trans-1-chloro-3, 3, 3-trifluoropropene is 16:72: 12; alternatively, the first and second electrodes may be,
under the state of normal temperature and pressure liquid phase, the mass ratio of the 1,1,1,2,3,3, 3-heptafluoropropane to the ammonia to the trans-1-chloro-3, 3, 3-trifluoropropene is 16:76: 8; alternatively, the first and second electrodes may be,
under the state of normal temperature and pressure liquid phase, the mass ratio of the 1,1,1,2,3,3, 3-heptafluoropropane to the ammonia to the trans-1-chloro-3, 3, 3-trifluoropropene is 16:80: 4.
8. A refrigeration system, characterized by:
comprising the mixed refrigerant according to any one of claims 1 to 7.
9. An air conditioner, characterized in that: comprising the refrigeration system of claim 8.
TABLE 1 basic parameters of the constituent substances in the mixed working fluid
Figure FDA0002612681710000031
Preferably, the first and second electrodes are formed of a metal,
in example 1,1,2,3,3, 3-heptafluoropropane (R227ea), ammonia (R717) and 1,1, 1-trifluoroethane (R143a) were physically and uniformly mixed at room temperature and normal pressure in a liquid phase at a mass ratio of 4:88:8 to obtain an environment-friendly mixed working medium.
Namely, in a state of a liquid phase at normal temperature and pressure, the mass ratio of the 1,1,1,2,3,3, 3-heptafluoropropane (R227ea), the ammonia (R717) and the 1,1, 1-trifluoroethane (R143a) is 4:88: 8.
Example 2, three components of 1,1,1,2,3,3, 3-heptafluoropropane (R227ea), ammonia (R717) and 1,1, 1-trifluoroethane (R143a) are physically and uniformly mixed at normal temperature and normal pressure in a mass ratio of 4:92:4 to obtain an environment-friendly mixed working medium.
Namely, in a state of a liquid phase at normal temperature and pressure, the mass ratio of the 1,1,1,2,3,3, 3-heptafluoropropane (R227ea), the ammonia (R717) and the 1,1, 1-trifluoroethane (R143a) is 4:92: 4.
Example 3, three components of 1,1,1,2,3,3, 3-heptafluoropropane (R227ea), ammonia (R717) and 1,1, 1-trifluoroethane (R143a) are physically and uniformly mixed at normal temperature and normal pressure in a mass ratio of 8:88:4 to obtain an environment-friendly mixed working medium.
Namely, in a state of a liquid phase at normal temperature and pressure, the mass ratio of the 1,1,1,2,3,3, 3-heptafluoropropane (R227ea), the ammonia (R717) and the 1,1, 1-trifluoroethane (R143a) is 8:88: 4.
Example 4, three components of 1,1,1,2,3,3, 3-heptafluoropropane (R227ea), ammonia (R717) and 1,1, 1-trifluoroethane (R143a) are physically and uniformly mixed at normal temperature and normal pressure in a mass ratio of 12:84:4 to obtain an environment-friendly mixed working medium.
Namely, in a state of a liquid phase at normal temperature and pressure, the mass ratio of the 1,1,1,2,3,3, 3-heptafluoropropane (R227ea), the ammonia (R717) and the 1,1, 1-trifluoroethane (R143a) is 12:84: 4.
Preferably, the first and second electrodes are formed of a metal,
example 5, three components of 1,1,1,2,3,3, 3-heptafluoropropane (R227ea), ammonia (R717) and trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)) were physically and uniformly mixed at normal temperature and pressure in a liquid phase at a mass ratio of 4:80:16 to obtain an environmentally friendly working mixture.
That is, in a state of a liquid phase at normal temperature and pressure, the mass ratio of the 1,1,1,2,3,3, 3-heptafluoropropane (R227ea), the ammonia (R717) and the trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)) is 4:80: 16.
Example 6, 1,1,1,2,3,3, 3-heptafluoropropane (R227ea), ammonia (R717) and trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)) were physically and uniformly mixed at room temperature and normal pressure in a liquid phase at a mass ratio of 4:84:12 to obtain an environmentally friendly working mixture.
That is, in a state of a liquid phase at normal temperature and pressure, the mass ratio of the 1,1,1,2,3,3, 3-heptafluoropropane (R227ea), the ammonia (R717) and the trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)) is 4:84: 12.
Example 7 an environmentally friendly working fluid mixture was obtained by physically and uniformly mixing three components, 1,1,1,2,3,3, 3-heptafluoropropane (R227ea), ammonia (R717) and trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)) at room temperature under normal pressure in a liquid phase at a mass ratio of 4:88: 8.
That is, in a state of a liquid phase at normal temperature and pressure, the mass ratio of the 1,1,1,2,3,3, 3-heptafluoropropane (R227ea), the ammonia (R717) and the trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)) is 4:88: 8.
Example 8, an environment-friendly working mixture was obtained by physically and uniformly mixing three components, 1,1,1,2,3,3, 3-heptafluoropropane (R227ea), ammonia (R717) and trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)), at room temperature and under normal pressure in a liquid phase at a mass ratio of 4:92: 4.
That is, in a state of a liquid phase at normal temperature and pressure, the mass ratio of the 1,1,1,2,3,3, 3-heptafluoropropane (R227ea), the ammonia (R717) and the trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)) is 4:92: 4.
Preferably, the first and second electrodes are formed of a metal,
example 9 an environmentally friendly working fluid mixture was prepared by physically and uniformly mixing three components, 1,1,1,2,3,3, 3-heptafluoropropane (R227ea), ammonia (R717) and trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)), at room temperature and pressure in a liquid phase at a mass ratio of 8:76: 16.
That is, in a state of a liquid phase at normal temperature and pressure, the mass ratio of the 1,1,1,2,3,3, 3-heptafluoropropane (R227ea), the ammonia (R717) and the trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)) is 8:76: 16.
Example 10 an environmentally friendly working fluid mixture was prepared by physically and uniformly mixing three components, 1,1,1,2,3,3, 3-heptafluoropropane (R227ea), ammonia (R717) and trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)), at room temperature and pressure in a liquid phase at a mass ratio of 8:80: 12.
That is, in a state of a liquid phase at normal temperature and pressure, the mass ratio of the 1,1,1,2,3,3, 3-heptafluoropropane (R227ea), the ammonia (R717) and the trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)) is 8:80: 12.
Example 11 an environmentally friendly working fluid mixture was prepared by physically and uniformly mixing three components, 1,1,1,2,3,3, 3-heptafluoropropane (R227ea), ammonia (R717) and trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)), at room temperature and pressure in a liquid phase at a mass ratio of 8:84: 8.
That is, in a state of a liquid phase at normal temperature and pressure, the mass ratio of the 1,1,1,2,3,3, 3-heptafluoropropane (R227ea), the ammonia (R717) and the trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)) is 8:84: 8.
Example 12 an environmentally friendly working fluid mixture was prepared by physically and uniformly mixing three components, 1,1,1,2,3,3, 3-heptafluoropropane (R227ea), ammonia (R717) and trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)), at room temperature and pressure in a liquid phase at a mass ratio of 8:88: 4.
That is, in a state of a liquid phase at normal temperature and pressure, the mass ratio of the 1,1,1,2,3,3, 3-heptafluoropropane (R227ea), the ammonia (R717) and the trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)) is 8:88: 4.
Preferably, the first and second electrodes are formed of a metal,
example 13, an environmentally friendly working fluid mixture was obtained by physically and uniformly mixing three components, 1,1,1,2,3,3, 3-heptafluoropropane (R227ea), ammonia (R717) and trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)), at room temperature and under normal pressure in a liquid phase at a mass ratio of 12:72: 16.
That is, in a state of a liquid phase at normal temperature and pressure, the mass ratio of the 1,1,1,2,3,3, 3-heptafluoropropane (R227ea), the ammonia (R717) and the trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)) is 12:72: 16.
Example 14, an environmentally friendly working fluid mixture was obtained by physically and uniformly mixing three components, 1,1,1,2,3,3, 3-heptafluoropropane (R227ea), ammonia (R717) and trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)), at room temperature and under normal pressure in a liquid phase at a mass ratio of 12:76: 12.
That is, in a liquid phase state at normal temperature and pressure, the mass ratio of the 1,1,1,2,3,3, 3-heptafluoropropane (R227ea), the ammonia (R717) and the trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)) is 12:76: 12.
Example 15, an environmentally friendly working fluid mixture was obtained by physically and uniformly mixing three components, 1,1,1,2,3,3, 3-heptafluoropropane (R227ea), ammonia (R717) and trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)), at room temperature and under normal pressure in a liquid phase at a mass ratio of 12:80: 8.
That is, in a state of a liquid phase at normal temperature and pressure, the mass ratio of the 1,1,1,2,3,3, 3-heptafluoropropane (R227ea), the ammonia (R717) and the trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)) is 12:80: 8.
Example 16, an environmentally friendly working fluid mixture was obtained by physically and uniformly mixing three components, 1,1,1,2,3,3, 3-heptafluoropropane (R227ea), ammonia (R717) and trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)), at room temperature and under normal pressure in a liquid phase at a mass ratio of 12:84: 4.
That is, in a state of a liquid phase at normal temperature and pressure, the mass ratio of the 1,1,1,2,3,3, 3-heptafluoropropane (R227ea), the ammonia (R717) and the trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)) is 12:84: 4.
Preferably, the first and second electrodes are formed of a metal,
example 17 an environmentally friendly working fluid mixture was prepared by physically and uniformly mixing three components, 1,1,1,2,3,3, 3-heptafluoropropane (R227ea), ammonia (R717) and trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)), at room temperature and pressure in a liquid phase at a mass ratio of 16:68: 16.
That is, in a state of a liquid phase at normal temperature and pressure, the mass ratio of the 1,1,1,2,3,3, 3-heptafluoropropane (R227ea), the ammonia (R717) and the trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)) is 16:68: 16.
Example 18 an environmentally friendly working fluid mixture was prepared by physically and uniformly mixing three components, 1,1,1,2,3,3, 3-heptafluoropropane (R227ea), ammonia (R717) and trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)), at room temperature and pressure in a liquid phase at a mass ratio of 16:72: 12.
That is, in a state of a liquid phase at normal temperature and pressure, the mass ratio of the 1,1,1,2,3,3, 3-heptafluoropropane (R227ea), the ammonia (R717) and the trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)) is 16:72: 12.
Example 19 an environmentally friendly working fluid mixture was prepared by physically and uniformly mixing three components, 1,1,1,2,3,3, 3-heptafluoropropane (R227ea), ammonia (R717) and trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)), at room temperature and pressure in a liquid phase at a mass ratio of 16:76: 8.
That is, in a state of a liquid phase at normal temperature and pressure, the mass ratio of the 1,1,1,2,3,3, 3-heptafluoropropane (R227ea), the ammonia (R717) and the trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)) is 16:76: 8.
Example 20 an environmentally friendly working fluid mixture was prepared by physically and uniformly mixing three components, 1,1,1,2,3,3, 3-heptafluoropropane (R227ea), ammonia (R717) and trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)), at room temperature and pressure in a liquid phase at a mass ratio of 16:80: 4.
That is, in a state of a liquid phase at normal temperature and pressure, the mass ratio of the 1,1,1,2,3,3, 3-heptafluoropropane (R227ea), the ammonia (R717) and the trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)) is 16:80: 4.
Comparative example 1 (comparative example, for comparison with examples 1 to 20 of the present invention, which shows that the refrigerant not in the range of the examples of the present invention does not achieve the effect of the present invention), three components of 1,1,1,2,3,3, 3-heptafluoropropane (R227ea), ammonia (R717) and trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)) were physically mixed uniformly at normal temperature and pressure in a liquid phase at a mass ratio of 60:4:36 to obtain a mixed working fluid.
Comparative example 2, three components of 1,1,1,2,3,3, 3-heptafluoropropane (R227ea), ammonia (R717) and 1,1, 1-trifluoroethane (R143a) are physically and uniformly mixed at normal temperature and normal pressure in a liquid phase according to a mass ratio of 20:4:76 to obtain a mixed working medium.
Comparative example 3, two components of 1,1,1,2,3,3, 3-heptafluoropropane (R227ea) and ammonia (R717) are physically and uniformly mixed at normal temperature and normal pressure in a liquid phase according to a mass ratio of 85:15 to obtain a mixed working medium.
Comparative example 4, the two components of ammonia (R717) and 1,1, 1-trifluoroethane (R143a) are physically mixed evenly at normal temperature and normal pressure according to the mass ratio of 10:90 to obtain a mixed working medium.
Comparative example 5, two components, 1,1,1,2,3,3, 3-heptafluoropropane (R227ea) and 1,1, 1-trifluoroethane (R143a), were physically and uniformly mixed at normal temperature and pressure in a liquid phase at a mass ratio of 50:50 to obtain a working mixture.
Comparative example 6, two components of trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)) and ammonia (R717) are physically and uniformly mixed at normal temperature and normal pressure in a liquid phase according to a mass ratio of 85:15 to obtain a mixed working medium.
Comparative example 7, a working mixture was obtained by physically and uniformly mixing trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)) and 1,1,1,2,3,3, 3-heptafluoropropane (R227ea) at a mass ratio of 20:80 under normal temperature and pressure in a liquid phase.
Table 2 compares the mixed working fluids of the above examples and comparative examples with basic parameters of R134a, such as molecular weight, normal boiling point, and environmental performance.
TABLE 2 basic parameters of the mixed working substances
Figure FDA0002612681710000091
As can be seen from Table 2, the environmental performance of the mixed working medium provided by the invention is far better than that of R134a, and the GWP of the mixed working medium is less than 600. The slippage temperature of the mixed working medium is small, the mixed working medium belongs to a near-azeotropic mixture, the adverse effect caused by the temperature slippage is eliminated, and the problem of refilling after the refrigerant leakage is not considered (the temperature slippage is used for judging whether the mixture is an azeotropic refrigerant or a non-azeotropic refrigerant, the low condition indicates that the mixture is the azeotropic refrigerant, and the high condition indicates that the mixture is the non-azeotropic refrigerant).
The content of the mixed working medium of the comparative example is out of the range of the invention, except for the comparative example 5, the GWP of other comparative examples is more than 600, and the environmental protection performance is far different from that of the examples. And most of the comparative examples have larger slip temperature, and once the refrigerant leaks, the refrigerant needs to be refilled, so that the method is not economical.
Table 3 compares the thermodynamic parameters (i.e. compression ratio and exhaust temperature) and relative thermodynamic properties (i.e. relative refrigerating output per unit volume and relative COP) of the mixed working fluids in the above examples and comparative examples under the refrigeration condition (i.e. evaporation temperature of 6 ℃, condensation temperature of 36 ℃, superheat degree of 5 ℃ and supercooling degree of 5 ℃) with R134 a.
TABLE 3 comparison of Performance of working mixtures with R134a
Figure FDA0002612681710000111
As can be seen from Table 3, the thermal performance, namely the volume heating capacity and the efficiency COP value of the mixed working medium provided by the invention are superior to R134a, the COP of the mixed refrigerant can reach 108% of R134a, and the volume cooling capacity can reach about 173% of R134a, so that the mixed working medium can be an environment-friendly refrigerant for replacing R134 a. The thermal performance of the mixed working medium in the comparative example is smaller than that of R134a, and the energy efficiency requirement cannot be met.
The invention also provides a refrigeration system comprising the mixed refrigerant of any one of the preceding claims.
The invention also provides an air conditioner which comprises the refrigerating system.
The invention provides a ternary environment-friendly mixed refrigerant, namely, four components of 1,1,1,2,3,3, 3-heptafluoropropane (R227ea), ammonia (R717), 1,1, 1-trifluoroethane (R143a) and trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)) are physically mixed into a ternary mixture (namely, the mixed refrigerant is composed of three different refrigerants) according to corresponding mass ratio under normal temperature and pressure liquid phase states, the mixed refrigerant has low GWP and good thermodynamic performance, the COP of the mixed refrigerant can reach 108% of R134a, the volume refrigerating capacity can reach about 173% of R134a, the problem that the GWP of other alternative R134a refrigerants is higher is effectively solved, and the problem of poor thermodynamic performance of the refrigerant is also solved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention. The above description is only a preferred embodiment of the present invention, 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 invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
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