CN111995987B - Mixed refrigerant and air conditioning system - Google Patents

Mixed refrigerant and air conditioning system Download PDF

Info

Publication number
CN111995987B
CN111995987B CN202010764910.2A CN202010764910A CN111995987B CN 111995987 B CN111995987 B CN 111995987B CN 202010764910 A CN202010764910 A CN 202010764910A CN 111995987 B CN111995987 B CN 111995987B
Authority
CN
China
Prior art keywords
ammonia
difluoromethane
mass ratio
trifluoropropene
trans
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
Application number
CN202010764910.2A
Other languages
Chinese (zh)
Other versions
CN111995987A (en
Inventor
黄宇杰
于艳翠
赵桓
雷佩玉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gree Electric Appliances Inc of Zhuhai
Original Assignee
Gree Electric Appliances Inc of Zhuhai
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Gree Electric Appliances Inc of Zhuhai filed Critical Gree Electric Appliances Inc of Zhuhai
Priority to CN202010764910.2A priority Critical patent/CN111995987B/en
Publication of CN111995987A publication Critical patent/CN111995987A/en
Application granted granted Critical
Publication of CN111995987B publication Critical patent/CN111995987B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

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
    • B60H1/00321—Heat exchangers for air-conditioning devices
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K2205/00—Aspects relating to compounds used in compression type refrigeration systems
    • C09K2205/10—Components
    • C09K2205/12—Hydrocarbons
    • C09K2205/122—Halogenated hydrocarbons
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K2205/00—Aspects relating to compounds used in compression type refrigeration systems
    • C09K2205/10—Components
    • C09K2205/12—Hydrocarbons
    • C09K2205/126—Unsaturated fluorinated hydrocarbons
    • 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 and an air conditioning system, wherein the mixed refrigerant comprises a first component, a second component and a third component, wherein: the first component is ammonia, the second component is difluoromethane, and the third component is trans-1-chloro-3, 3, 3-trifluoropropene or 1,1, 1-trifluoroethane. The mixed refrigerant has low GWP and good thermal performance, the GWP value can reach less than 150, the COP (coefficient of performance) of the mixed refrigerant is much higher than that of R134a, and the volumetric refrigerating capacity can be much higher than that of R134a, so that 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. And the slip temperature of the mixed working medium can be lower than 0.5 ℃, the adverse effect caused by the temperature slip is eliminated, and the potential safety hazard caused by combustible refrigerants can be reduced or even eliminated by the secondary loop automobile air conditioning system.

Description

Mixed refrigerant and air conditioning system
Technical Field
The invention belongs to the technical field of refrigeration, and particularly relates to a mixed refrigerant and an air conditioning system.
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. In the F-gas act of the european union, the GWP of the refrigerant for the automotive air conditioning system is required to be lower than 150, but no perfect solution for replacing R134a (GWP: 1430) is found at present, and due to the characteristics of R134a, the heating capacity per unit volume of the automotive air conditioning heat pump system using R134a is low, so that the volume of the compressor is large (the displacement is large), and finally the COP of the system is low. Because the mixed working medium has the characteristic of balancing the physical properties of the refrigerant, the research on the mixed working medium becomes a hotspot of the research of domestic and foreign scholars and enterprises, and although part of the mixed working medium in the prior art meets the lower GWP value, the thermal performance can not meet the requirement and the better refrigeration and heating effects can not be realized. Therefore, there is an urgent need for a refrigerant that simultaneously satisfies a lower GWP and has good thermal properties.
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 this refrigerant still has a COP and volumetric capacity that is inferior to that of R134a in some embodiments.
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 and an air-conditioning system.
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 and an air conditioning system.
The present invention provides a mixed refrigerant, wherein:
comprising a first component, a second component and a third component, wherein: the first component is ammonia, the second component is difluoromethane, and the third component is trans-1-chloro-3, 3, 3-trifluoropropene or 1,1, 1-trifluoroethane.
Preferably, the mass ratio of the ammonia to the mixed refrigerant is 76-92%, the mass ratio of the difluoromethane to the mixed refrigerant is 4-20%, and the mass ratio of the trans-1-chloro-3, 3, 3-trifluoropropene or 1,1, 1-trifluoroethane to the mixed refrigerant is 4-16%.
Preferably, the ammonia accounts for 88% of the mixed refrigerant by mass, the difluoromethane accounts for 8% of the mixed refrigerant by mass, and the trans-1-chloro-3, 3, 3-trifluoropropene or 1,1, 1-trifluoroethane accounts for 4% of the mixed refrigerant by mass.
Preferably, in the state of normal temperature and normal pressure liquid phase, the mass ratio of the ammonia, the difluoromethane and the trans-1-chloro-3, 3, 3-trifluoropropene is 76: 12; alternatively, the first and second electrodes may be,
under the state of normal temperature and pressure and liquid phase, the mass ratio of the ammonia, the difluoromethane and the trans-1-chloro-3, 3, 3-trifluoropropene is 76:16: 8; alternatively, the first and second electrodes may be,
under the state of normal temperature and normal pressure liquid phase, the mass ratio of the ammonia, the difluoromethane and the trans-1-chloro-3, 3, 3-trifluoropropene is 76:20: 4; alternatively, the first and second electrodes may be,
under the state of normal temperature and pressure and liquid phase, the mass ratio of the ammonia, the difluoromethane and the trans-1-chloro-3, 3, 3-trifluoropropene is 80:4: 16.
Preferably, in the state of normal temperature and normal pressure liquid phase, the mass ratio of the ammonia, the difluoromethane and the trans-1-chloro-3, 3, 3-trifluoropropene is 80:8: 12; alternatively, the first and second electrodes may be,
under the state of normal temperature and pressure and liquid phase, the mass ratio of the ammonia, the difluoromethane and the trans-1-chloro-3, 3, 3-trifluoropropene is 80:12: 8; alternatively, the first and second electrodes may be,
under the state of normal temperature and pressure and liquid phase, the mass ratio of the ammonia, the difluoromethane and the trans-1-chloro-3, 3, 3-trifluoropropene is 80:16: 4; alternatively, the first and second electrodes may be,
under the state of normal temperature and pressure and liquid phase, the mass ratio of the ammonia, the difluoromethane and the trans-1-chloro-3, 3, 3-trifluoropropene is 84:4: 12.
Preferably, in the state of normal temperature and normal pressure liquid phase, the mass ratio of the ammonia, the difluoromethane and the trans-1-chloro-3, 3, 3-trifluoropropene is 84: 8; alternatively, the first and second electrodes may be,
under the state of normal temperature and pressure and liquid phase, the mass ratio of the ammonia, the difluoromethane and the trans-1-chloro-3, 3, 3-trifluoropropene is 88: 12: 4; alternatively, the first and second electrodes may be,
under the state of normal temperature and pressure and liquid phase, the mass ratio of the ammonia, the difluoromethane and the trans-1-chloro-3, 3, 3-trifluoropropene is 88:4: 8; alternatively, the first and second electrodes may be,
under the state of normal temperature and pressure and liquid phase, the mass ratio of the ammonia, the difluoromethane and the trans-1-chloro-3, 3, 3-trifluoropropene is 88: 8: 4; alternatively, the first and second electrodes may be,
under the state of normal temperature and pressure and liquid phase, the mass ratio of the ammonia, the difluoromethane and the trans-1-chloro-3, 3, 3-trifluoropropene is 92: 4.
Preferably, in the state of normal temperature and normal pressure liquid phase, the mass ratio of the ammonia, the difluoromethane and the 1,1, 1-trifluoroethane is 76:16: 8; alternatively, the first and second electrodes may be,
under the state of normal temperature and normal pressure liquid phase, the mass ratio of the ammonia, the difluoromethane and the 1,1, 1-trifluoroethane is 76:20: 4; alternatively, the first and second electrodes may be,
under the state of normal temperature and normal pressure liquid phase, the mass ratio of the ammonia, the difluoromethane and the 1,1, 1-trifluoroethane is 80:12: 8.
Preferably, in the state of normal temperature and normal pressure liquid phase, the mass ratio of the ammonia, the difluoromethane and the 1,1, 1-trifluoroethane is 80:16: 4; alternatively, the first and second electrodes may be,
under the state of normal temperature and normal pressure liquid phase, the mass ratio of the ammonia, the difluoromethane and the 1,1, 1-trifluoroethane is 80:8: 12; alternatively, the first and second electrodes may be,
under the state of normal temperature and normal pressure liquid phase, the mass ratio of the ammonia, the difluoromethane and the 1,1, 1-trifluoroethane is 84: 8; alternatively, the first and second electrodes may be,
under the state of normal temperature and normal pressure liquid phase, the mass ratio of the ammonia, the difluoromethane and the 1,1, 1-trifluoroethane is 84: 12: 4.
Preferably, in the state of normal temperature and normal pressure liquid phase, the mass ratio of the ammonia, the difluoromethane and the 1,1, 1-trifluoroethane is 84:4: 12; alternatively, the first and second electrodes may be,
under the state of normal temperature and normal pressure liquid phase, the mass ratio of the ammonia, the difluoromethane and the 1,1, 1-trifluoroethane is 88:4: 8; alternatively, the first and second electrodes may be,
under the state of normal temperature and normal pressure liquid phase, the mass ratio of the ammonia, the difluoromethane and the 1,1, 1-trifluoroethane is 88: 8: 4; alternatively, the first and second electrodes may be,
under the state of normal temperature and normal pressure liquid phase, the mass ratio of the ammonia, the difluoromethane and the 1,1, 1-trifluoroethane is 92: 4.
The present invention also provides an air conditioning system, wherein:
comprising the mixed refrigerant of any one of the preceding claims.
Preferably, the outdoor heat exchanger is arranged on the indoor heat exchange loop, and the part of the second intermediate heat exchanger is also arranged on the indoor heat exchange loop, so that the indoor heat exchange loop and the intermediate refrigeration system loop exchange heat at the second intermediate heat exchanger; the outdoor heat dissipation loop is provided with a first water pump, and the indoor heat exchange loop is provided with a second water pump.
Preferably, the air conditioning system is an automotive air conditioning system.
The mixed refrigerant and the air conditioning system provided by the invention have the following beneficial effects:
the invention provides a ternary environment-friendly mixed refrigerant and a secondary loop automobile air conditioning system using the ternary environment-friendly mixed refrigerant, namely, four components of ammonia (R717), difluoromethane (R32), trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)) and 1,1, 1-trifluoroethane (R143a) are physically mixed into a ternary mixture (namely, the mixed refrigerant consists of three different refrigerants) according to corresponding mass ratio under the normal temperature and pressure liquid phase state, the mixed refrigerant has low GWP and good thermal performance, the GWP value can reach less than 150, the COP (coefficient of performance) of the mixed refrigerant can be much higher than that of R134a, and the volumetric refrigerating capacity can be much higher than that of R134a, so that 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. And the slip temperature of the mixed working medium can be lower than 0.5 ℃, the adverse effect caused by the temperature slip is eliminated, and the potential safety hazard caused by combustible refrigerants can be reduced or even eliminated by the secondary loop automobile air conditioning system.
Drawings
Fig. 1 is a system schematic diagram of an air conditioning system containing a mixed refrigerant according to the present invention.
The reference numerals are represented as:
100. an outdoor heat dissipation loop; 200. an intermediate refrigeration system loop; 300. an indoor heat exchange loop; 1. a compressor; 2. a first intermediate heat exchanger; 3. a second intermediate heat exchanger; 4. an outdoor radiator; 5. an indoor heat exchanger; 6. a first water pump; 7. a second water pump; 8. a throttle valve.
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 ammonia (R717, which is the type of refrigerant, the same applies below), the second component is difluoromethane (R32), and the third component is trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)) or 1,1, 1-trifluoroethane (R143 a).
The invention provides a ternary environment-friendly mixed refrigerant and a secondary loop automobile air conditioning system using the ternary environment-friendly mixed refrigerant, namely, four components of ammonia (R717), difluoromethane (R32), trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)) and 1,1, 1-trifluoroethane (R143a) are physically mixed into a ternary mixture (namely, the mixed refrigerant consists of three different refrigerants) according to corresponding mass ratio under the normal temperature and pressure liquid phase state, the mixed refrigerant has low GWP and good thermal performance, the GWP value can reach less than 150, the COP (coefficient of performance) of the mixed refrigerant can be much higher than that of R134a, and the volumetric refrigerating capacity can be much higher than that of R134a, so that 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. And the slip temperature of the mixed working medium can be lower than 0.5 ℃, the adverse effect caused by the temperature slip is eliminated, and the potential safety hazard caused by combustible refrigerants can be reduced or even eliminated by the secondary loop automobile air conditioning system.
The invention aims to provide a secondary loop automobile air conditioning system using ammonia mixture as refrigerant, the refrigerating system has good environmental protection performance, has low GWP, is superior to COP of an R134a refrigerating system, and can be applied to the automobile air conditioning system by exchanging heat with refrigerating environment and the outside through the secondary loop.
Preferably, the ammonia (R717) accounts for 76-92% of the mixed refrigerant by mass, the difluoromethane (R32) accounts for 4-20% of the mixed refrigerant by mass, and the trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)) or 1,1, 1-trifluoroethane (R143a) accounts for 4-16% of the mixed refrigerant by mass.
The first component is ammonia (R717), the second component is difluoromethane (R32), and the third component is trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)) or 1,1, 1-trifluoroethane (R143 a). And the environment-friendly mixed refrigerant comprises 76-92% of ammonia (R717), 4-20% of difluoromethane (R32) 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.
The preparation method of the mixed working medium for the system provided by the invention is that one of ammonia, difluoromethane, trans-1-chloro-3, 3, 3-trifluoropropene and 1,1, 1-trifluoroethane is physically mixed into a ternary mixture under the normal temperature and pressure liquid phase state according to the corresponding mass ratio. The basic parameters of each component are shown in Table 1.
TABLE 1 basic parameters of the constituent substances in the mixed working fluid
Figure BDA0002612681280000081
Preferably, the first and second electrodes are formed of a metal,
the ammonia (R717) accounts for 88% of the mixed refrigerant by mass, the difluoromethane (R32) accounts for 8% of the mixed refrigerant by mass, and the trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)) or 1,1, 1-trifluoroethane (R143a) accounts for 4% of the mixed refrigerant by mass.
Preferably, the first and second electrodes are formed of a metal,
in example 1, three components, namely ammonia (R717), difluoromethane (R32) and trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)), are physically and uniformly mixed at the normal temperature and pressure in a mass ratio of 76:12 to obtain the environment-friendly mixed working medium.
Namely, in a state of a liquid phase at normal temperature and pressure, the mass ratio of the ammonia (R717), the difluoromethane (R32) and the trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)) is 76: 12.
In example 2, three components, namely ammonia (R717), difluoromethane (R32) and trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)), are physically and uniformly mixed at the normal temperature and pressure in a mass ratio of 76:16:8 to obtain the environment-friendly mixed working medium.
Namely, in a state of a liquid phase at normal temperature and pressure, the mass ratio of the ammonia (R717), the difluoromethane (R32) and the trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)) is 76:16: 8.
In example 3, ammonia (R717), difluoromethane (R32), trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)) were physically mixed uniformly at room temperature and normal pressure in a mass ratio of 76:20:4 to obtain an environmentally friendly working mixture.
Namely, in a state of a liquid phase at normal temperature and pressure, the mass ratio of the ammonia (R717), the difluoromethane (R32) and the trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)) is 76:20: 4.
In example 4, three components, namely ammonia (R717), difluoromethane (R32) and trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)), are physically and uniformly mixed in a mass ratio of 80:4:16 under normal temperature and pressure to obtain the environment-friendly mixed working medium.
Namely, in a state of a liquid phase at ordinary temperature and pressure, the mass ratio of the ammonia (R717), the difluoromethane (R32) and the trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)) is 80:4: 16.
Preferably, the first and second electrodes are formed of a metal,
in example 5, three components, namely ammonia (R717), difluoromethane (R32) and trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)), are physically and uniformly mixed at a mass ratio of 80:8:12 under normal temperature and pressure to obtain an environment-friendly mixed working medium.
Namely, in a state of a liquid phase at ordinary temperature and pressure, the mass ratio of the ammonia (R717), the difluoromethane (R32) and the trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)) is 80:8: 12.
In example 6, three components, namely ammonia (R717), difluoromethane (R32) and trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)), are physically and uniformly mixed at a mass ratio of 80:12:8 under normal temperature and pressure to obtain an environment-friendly mixed working medium.
Namely, in a state of a liquid phase at ordinary temperature and pressure, the mass ratio of the ammonia (R717), the difluoromethane (R32) and the trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)) is 80:12: 8.
In example 7, three components, namely ammonia (R717), difluoromethane (R32) and trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)), are physically and uniformly mixed at a mass ratio of 80:16:4 under normal temperature and pressure to obtain an environment-friendly mixed working medium.
Namely, in a state of a liquid phase at ordinary temperature and pressure, the mass ratio of the ammonia (R717), the difluoromethane (R32) and the trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)) is 80:16: 4.
In example 8, three components, namely ammonia (R717), difluoromethane (R32) and trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)), are physically and uniformly mixed in a mass ratio of 84:4:12 under normal temperature and pressure to obtain the environment-friendly mixed working medium. .
Namely, in a state of a liquid phase at ordinary temperature and pressure, the mass ratio of the ammonia (R717), the difluoromethane (R32) and the trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)) is 84:4: 12.
Preferably, the first and second electrodes are formed of a metal,
in example 9, three components, namely ammonia (R717), difluoromethane (R32) and trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)), were physically mixed uniformly at a mass ratio of 84:8 under normal temperature and pressure to obtain an environmentally friendly working mixture.
Namely, in a state of a liquid phase at ordinary temperature and pressure, the mass ratio of the ammonia (R717), the difluoromethane (R32) and the trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)) is 84: 8.
In example 10, three components, namely ammonia (R717), difluoromethane (R32) and trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)), are physically and uniformly mixed at the normal temperature and pressure in a mass ratio of 88: 12: 4 to obtain the environment-friendly mixed working medium.
Namely, in a state of a liquid phase at normal temperature and pressure, the mass ratio of the ammonia (R717), the difluoromethane (R32) and the trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)) is 88: 12: 4.
In example 11, three components, ammonia (R717), difluoromethane (R32) and trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)), were physically mixed uniformly at a mass ratio of 88:4:8 under normal temperature and pressure to obtain an environmentally friendly working mixture.
Namely, the three components of ammonia (R717), difluoromethane (R32) and trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)) are physically and uniformly mixed according to the mass ratio of 88:4:8 under normal temperature and normal pressure liquid phase to obtain the environment-friendly mixed working medium. .
In example 12, three components, namely ammonia (R717), difluoromethane (R32) and trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)), were physically mixed uniformly at a mass ratio of 88: 8:4 under normal temperature and pressure to obtain an environmentally friendly working mixture.
Namely, in a state of a liquid phase at normal temperature and pressure, the mass ratio of the ammonia (R717), the difluoromethane (R32) and the trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)) is 88: 8: 4.
Preferably, the first and second electrodes are formed of a metal,
in example 13, ammonia (R717), difluoromethane (R32), and trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)) were physically mixed uniformly at a mass ratio of 92:4 under normal temperature and pressure to obtain an environmentally friendly working mixture.
Namely, in a state of a liquid phase at normal temperature and pressure, the mass ratio of the ammonia (R717), the difluoromethane (R32) and the trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)) is 92: 4.
In example 14, ammonia (R717), difluoromethane (R32), and 1,1, 1-trifluoroethane (R143a) were physically mixed uniformly at room temperature and normal pressure in a mass ratio of 76:16:8 to obtain an environmentally friendly working mixture.
Namely, in the state of a liquid phase at normal temperature and pressure, the mass ratio of the ammonia (R717), the difluoromethane (R32) and the 1,1, 1-trifluoroethane (R143a) is 76:16: 8.
In example 15, ammonia (R717), difluoromethane (R32) and 1,1, 1-trifluoroethane (R143a) were physically mixed uniformly at normal temperature and pressure in a mass ratio of 76:20:4 to obtain an environmentally friendly working mixture.
Namely, in the state of a liquid phase at normal temperature and pressure, the mass ratio of the ammonia (R717), the difluoromethane (R32) and the 1,1, 1-trifluoroethane (R143a) is 76:20: 4.
In example 16, ammonia (R717), difluoromethane (R32) and 1,1, 1-trifluoroethane (R143a) were physically mixed uniformly at a mass ratio of 80:12:8 at normal temperature and pressure to obtain an environmentally friendly mixed working medium.
Namely, in the state of a liquid phase at normal temperature and pressure, the mass ratio of the ammonia (R717), the difluoromethane (R32) and the 1,1, 1-trifluoroethane (R143a) is 80:12:8
Preferably, the first and second electrodes are formed of a metal,
in example 17, ammonia (R717), difluoromethane (R32), and 1,1, 1-trifluoroethane (R143a) were physically mixed uniformly at a mass ratio of 80:16:4 at normal temperature and pressure to obtain an environmentally friendly working mixture.
Namely, in the state of a liquid phase at ordinary temperature and ordinary pressure, the mass ratio of the ammonia (R717), the difluoromethane (R32) and the 1,1, 1-trifluoroethane (R143a) is 80:16: 4.
In example 18, ammonia (R717), difluoromethane (R32) and 1,1, 1-trifluoroethane (R143a) were physically mixed uniformly at a mass ratio of 80:8:12 at normal temperature and pressure to obtain an environmentally friendly mixed working medium.
Namely, in a state of a liquid phase at normal temperature and pressure, the mass ratio of the ammonia (R717), the difluoromethane (R32) and the 1,1, 1-trifluoroethane (R143a) is 80:8: 12.
In example 19, three components, namely ammonia (R717), difluoromethane (R32) and 1,1, 1-trifluoroethane (R143a), are physically and uniformly mixed at a mass ratio of 84:8 under normal temperature and pressure 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 ammonia (R717), the difluoromethane (R32) and the 1,1, 1-trifluoroethane (R143a) is 84: 8.
In example 20, ammonia (R717), difluoromethane (R32), and 1,1, 1-trifluoroethane (R143a) were physically mixed uniformly at room temperature and normal pressure in a mass ratio of 84: 12: 4 to obtain an environmentally friendly working mixture.
Namely, in the state of a liquid phase at ordinary temperature and ordinary pressure, the mass ratio of the ammonia (R717), the difluoromethane (R32) and the 1,1, 1-trifluoroethane (R143a) is 84: 12: 4.
In example 21, three components, ammonia (R717), difluoromethane (R32) and 1,1, 1-trifluoroethane (R143a), were physically mixed uniformly at a mass ratio of 84:4:12 at normal temperature and pressure to obtain an environmentally friendly mixed working medium.
Namely, in the state of a liquid phase at ordinary temperature and ordinary pressure, the mass ratio of the ammonia (R717), the difluoromethane (R32) and the 1,1, 1-trifluoroethane (R143a) is 84:4: 12.
In example 22, ammonia (R717), difluoromethane (R32), and 1,1, 1-trifluoroethane (R143a) were physically mixed uniformly at a mass ratio of 88:4:8 at normal temperature and pressure to obtain an environmentally friendly working mixture.
Namely, in the state of a liquid phase at normal temperature and pressure, the mass ratio of the ammonia (R717), the difluoromethane (R32) and the 1,1, 1-trifluoroethane (R143a) is 88:4: 8.
In example 23, ammonia (R717), difluoromethane (R32), and 1,1, 1-trifluoroethane (R143a) were physically mixed uniformly at room temperature and normal pressure in a mass ratio of 88: 8:4 to obtain an environmentally friendly working mixture.
Namely, in the state of a liquid phase at normal temperature and pressure, the mass ratio of the ammonia (R717), the difluoromethane (R32) and the 1,1, 1-trifluoroethane (R143a) is 88: 8: 4.
In example 24, ammonia (R717), difluoromethane (R32), and 1,1, 1-trifluoroethane (R143a) were physically mixed uniformly at a mass ratio of 92:4 at room temperature and normal pressure to obtain an environmentally friendly working mixture.
Namely, in a state of a liquid phase at normal temperature and pressure, the mass ratio of the ammonia (R717), the difluoromethane (R32) and the 1,1, 1-trifluoroethane (R143a) is 92: 4.
Comparative example 1 (comparative example, for comparison with examples 1 to 24 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 ammonia (R717), difluoromethane (R32), trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)) were physically mixed uniformly at normal temperature and pressure in a mass ratio of 64: 20: 16 to obtain an environmentally friendly working fluid mixture.
In the comparative example 2, three components of ammonia (R717), difluoromethane (R32) and trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)) are physically and uniformly mixed according to the mass ratio of 76: 4: 20 under normal temperature and pressure liquid phase to obtain the environment-friendly mixed working medium.
In the comparative example 3, three components of ammonia (R717), difluoromethane (R32) and trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)) are physically and uniformly mixed according to the mass ratio of 83: 1: 16 under normal temperature and pressure liquid phase to obtain the environment-friendly mixed working medium.
In the comparative example 4, three components of ammonia (R717), difluoromethane (R32) and 1,1, 1-trifluoroethane (R143a) are physically and uniformly mixed according to the mass ratio of 64: 20: 16 under normal temperature and normal pressure to obtain the environment-friendly mixed working medium.
In the comparative example 5, three components of ammonia (R717), difluoromethane (R32) and 1,1, 1-trifluoroethane (R143a) are physically and uniformly mixed according to the mass ratio of 76: 4: 20 under normal temperature and pressure to obtain the environment-friendly mixed working medium.
In the comparative example 6, three components of ammonia (R717), difluoromethane (R32) and 1,1, 1-trifluoroethane (R143a) are physically and uniformly mixed according to the mass ratio of 83: 1: 16 under normal temperature and normal pressure to obtain the environment-friendly mixed working medium.
Comparative example 7, three components of ammonia (R717), difluoromethane (R32) and trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)) are physically and uniformly mixed according to the mass ratio of 76: 0: 24 under normal temperature and pressure liquid phase to obtain the environment-friendly mixed working medium
In the comparative example 8, the three components of ammonia (R717), difluoromethane (R32) and 1,1, 1-trifluoroethane (R143a) are physically and uniformly mixed according to the mass ratio of 76: 24: 0 at normal temperature and normal pressure to obtain the environment-friendly mixed working medium.
In a comparative example 9, three components of ammonia (R717), difluoromethane (R32) and 1,1, 1-trifluoroethane (R143a) are physically and uniformly mixed according to the mass ratio of 76: 0: 24 under normal temperature and pressure to obtain the environment-friendly mixed working medium.
Calculating the cycle performance of the automobile air conditioning system under the same condition through simulation calculation:
namely, the evaporation temperature is 0 ℃, the condensation temperature is 36 ℃, the superheat degree is 5 ℃, the supercooling degree is 5 ℃, the comparison results of the refrigeration cycle performance of the intermediate refrigeration system loop and the relative thermal performance (namely, the relative refrigerating capacity per unit volume and the relative efficiency COP) of R134a calculated according to the isentropic efficiency of 0.7 are shown in tables 2 to 3.
As can be seen from Table 2, the environmental performance of the secondary loop automobile air conditioning system using the mixed working medium provided by the invention is far better than that of R134a, the thermal performance is better than that of R134a, and the GWP is as low as 27.96.
TABLE 2 basic parameters of the mixed working substances
Figure BDA0002612681280000161
TABLE 3 basic parameters of the working mixture
Figure BDA0002612681280000171
(slip temperature is the maximum value of the difference between the dew point temperature and the bubble point temperature under the calculation working condition)
Comparative example 1, temperature glide is large and energy efficiency is low;
comparative example 2, energy efficiency and unit volume refrigerating capacity are low;
comparative example 3, energy efficiency and unit volume refrigerating capacity are low;
comparative example 4, the energy efficiency is low, and the GWP is large;
comparative example 5, lower energy efficiency and larger GWP;
comparative example 6, lower energy efficiency and larger GWP;
comparative example 7, the energy efficiency is low;
comparative example 8, energy efficiency is low;
comparative example 9, lower energy efficiency and larger GWP;
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 those of R134a, and the mixed working medium can be used as an environment-friendly refrigerant for replacing R134 a.
The invention also provides an air conditioning system which comprises the mixed refrigerant.
The invention provides a ternary environment-friendly mixed refrigerant and a secondary loop automobile air conditioning system using the ternary environment-friendly mixed refrigerant, namely, four components of ammonia (R717), difluoromethane (R32), trans-1-chloro-3, 3, 3-trifluoropropene (R1233zd (E)) and 1,1, 1-trifluoroethane (R143a) are physically mixed into a ternary mixture (namely, the mixed refrigerant consists of three different refrigerants) according to corresponding mass ratio under the normal temperature and pressure liquid phase state, the mixed refrigerant has low GWP and good thermal performance, the GWP value can reach less than 150, the COP (coefficient of performance) of the mixed refrigerant can be much higher than that of R134a, and the volumetric refrigerating capacity can be much higher than that of R134a, so that 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. And the slip temperature of the mixed working medium can be lower than 0.5 ℃, the adverse effect caused by the temperature slip is eliminated, and the potential safety hazard caused by combustible refrigerants can be reduced or even eliminated by the secondary loop automobile air conditioning system.
Preferably, the air conditioner further comprises an outdoor heat dissipation loop 100, an intermediate refrigeration system loop 200 and an indoor heat exchange loop 300, wherein a compressor 1, a first intermediate heat exchanger 2 and a second intermediate heat exchanger 3 are arranged on the intermediate refrigeration system loop 200, an outdoor radiator 4 is arranged on the outdoor heat dissipation loop 100, a part of the first intermediate heat exchanger 2 is also arranged on the outdoor heat dissipation loop 100, so that the outdoor heat dissipation loop 100 and the intermediate refrigeration system loop 200 exchange heat at the first intermediate heat exchanger 2, an indoor heat exchanger 5 is arranged on the indoor heat exchange loop 300, and a part of the second intermediate heat exchanger 3 is also arranged on the indoor heat exchange loop 300, so that the indoor heat exchange loop 300 and the intermediate refrigeration system loop 200 exchange heat at the second intermediate heat exchanger 3; the outdoor heat dissipation loop 100 is provided with a first water pump 6, and the indoor heat exchange loop 300 is provided with a second water pump 7.
The air conditioning system adopts the secondary loop, namely the refrigerant passes through the intermediate refrigeration system loop, the outdoor water passes through the outdoor heat dissipation loop, the indoor water passes through the indoor heat exchange waterway, so that the heat is dissipated to the outdoor after the refrigerant exchanges heat with the outdoor water, and the heat or cold is transferred to the indoor through the water after the indoor exchanges heat with the water through the refrigerant, so that the refrigerant cannot enter the indoor or outdoor, the condition that the refrigerant leaks into the indoor or outdoor air to generate potential safety hazard is effectively prevented, and the safe and reliable operation of the air conditioning system is ensured.
Preferably, the air conditioning system is an automotive air conditioning system.
A secondary circuit automotive air conditioning system using an environmentally friendly mixed refrigerant is provided. The GWP of the refrigerant in the system can be lower than 150, so that the system meets the requirement of environmental protection regulations in various regions around the world. The thermal performance is better than R134a under proper proportion, and the slip temperature of the mixed working medium is less than 0.5 ℃, so that the adverse effect caused by temperature slip is eliminated. The secondary loop automobile air conditioning system can reduce or even eliminate potential safety hazards caused by combustible refrigerants.
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 (8)

1. A mixed refrigerant characterized by:
comprising a first component, a second component and a third component, wherein: the first component is ammonia, the second component is difluoromethane, and the third component is trans-1-chloro-3, 3, 3-trifluoropropene;
the mass percentage of the ammonia in the mixed refrigerant is 76-92%, the mass percentage of the difluoromethane in the mixed refrigerant is 4-20%, and the mass percentage of the trans-1-chloro-3, 3, 3-trifluoropropene in the mixed refrigerant is 4-16%.
2. The mixed refrigerant according to claim 1, characterized in that:
the mass ratio of the ammonia to the mixed refrigerant is 88%, the mass ratio of the difluoromethane to the mixed refrigerant is 8%, and the mass ratio of the trans-1-chloro-3, 3, 3-trifluoropropene to the mixed refrigerant is 4%.
3. The mixed refrigerant according to claim 1, characterized in that:
the mass ratio of the ammonia, the difluoromethane and the trans-1-chloro-3, 3, 3-trifluoropropene is 76:12: 12; alternatively, the first and second electrodes may be,
the mass ratio of the ammonia, the difluoromethane and the trans-1-chloro-3, 3, 3-trifluoropropene is 76:16: 8; alternatively, the first and second electrodes may be,
the mass ratio of the ammonia, the difluoromethane and the trans-1-chloro-3, 3, 3-trifluoropropene is 76:20: 4; alternatively, the first and second electrodes may be,
the mass ratio of the ammonia, the difluoromethane and the trans-1-chloro-3, 3, 3-trifluoropropene is 80:4: 16.
4. The mixed refrigerant according to claim 1, characterized in that:
the mass ratio of the ammonia, the difluoromethane and the trans-1-chloro-3, 3, 3-trifluoropropene is 80:8: 12; alternatively, the first and second electrodes may be,
the mass ratio of the ammonia, the difluoromethane and the trans-1-chloro-3, 3, 3-trifluoropropene is 80:12: 8; alternatively, the first and second electrodes may be,
the mass ratio of the ammonia, the difluoromethane and the trans-1-chloro-3, 3, 3-trifluoropropene is 80:16: 4; alternatively, the first and second electrodes may be,
the mass ratio of the ammonia, the difluoromethane and the trans-1-chloro-3, 3, 3-trifluoropropene is 84:4: 12.
5. The mixed refrigerant according to claim 1, characterized in that:
the mass ratio of the ammonia, the difluoromethane and the trans-1-chloro-3, 3, 3-trifluoropropene is 84:8: 8; alternatively, the first and second electrodes may be,
the mass ratio of the ammonia, the difluoromethane and the trans-1-chloro-3, 3, 3-trifluoropropene is 88:4: 8; alternatively, the first and second electrodes may be,
the mass ratio of the ammonia, the difluoromethane and the trans-1-chloro-3, 3, 3-trifluoropropene is 92:4: 4.
6. An air conditioning system characterized by:
comprising the mixed refrigerant according to any one of claims 1 to 5.
7. The air conditioning system of claim 6, wherein:
also comprises an outdoor heat dissipation loop (100), an intermediate refrigerating system loop (200) and an indoor heat exchange loop (300), the intermediate refrigerating system loop (200) is provided with a compressor (1), a first intermediate heat exchanger (2) and a second intermediate heat exchanger (3), an outdoor radiator (4) is arranged on the outdoor heat dissipation loop (100), part of the first intermediate heat exchanger (2) is also arranged on the outdoor heat dissipation loop (100) so that the outdoor heat dissipation loop (100) and the intermediate refrigerating system loop (200) exchange heat at the first intermediate heat exchanger (2), an indoor heat exchanger (5) is arranged on the indoor heat exchange loop (300), and part of the second intermediate heat exchanger (3) is also arranged on the indoor heat exchange loop (300), so that the indoor heat exchange loop (300) and the intermediate refrigeration system loop (200) exchange heat at the second intermediate heat exchanger (3); the outdoor heat dissipation loop (100) is provided with a first water pump (6), and the indoor heat exchange loop (300) is provided with a second water pump (7).
8. The air conditioning system of claim 6, wherein:
the air conditioning system is an automobile air conditioning system.
CN202010764910.2A 2020-07-31 2020-07-31 Mixed refrigerant and air conditioning system Active CN111995987B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010764910.2A CN111995987B (en) 2020-07-31 2020-07-31 Mixed refrigerant and air conditioning system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010764910.2A CN111995987B (en) 2020-07-31 2020-07-31 Mixed refrigerant and air conditioning system

Publications (2)

Publication Number Publication Date
CN111995987A CN111995987A (en) 2020-11-27
CN111995987B true CN111995987B (en) 2021-09-07

Family

ID=73463992

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010764910.2A Active CN111995987B (en) 2020-07-31 2020-07-31 Mixed refrigerant and air conditioning system

Country Status (1)

Country Link
CN (1) CN111995987B (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3375399B2 (en) * 1993-12-28 2003-02-10 東燃ゼネラル石油株式会社 Refrigerating machine oil
US7569170B2 (en) * 2005-03-04 2009-08-04 E.I. Du Pont De Nemours And Company Compositions comprising a fluoroolefin
GB0614067D0 (en) * 2006-07-17 2006-08-23 Ineos Fluor Holdings Ltd Heat transfer compositions
BRPI0916491A2 (en) * 2008-11-26 2016-08-02 Du Pont absorption cycle system
CN110843457B (en) * 2019-10-16 2021-01-15 珠海格力电器股份有限公司 Automobile air conditioner heat pump system adopting environment-friendly refrigerant

Also Published As

Publication number Publication date
CN111995987A (en) 2020-11-27

Similar Documents

Publication Publication Date Title
CN110878195B (en) Coolant containing trifluoroiodomethane, mixture containing coolant and heat exchange system
CN110843457B (en) Automobile air conditioner heat pump system adopting environment-friendly refrigerant
CN110684509B (en) Environment-friendly mixed refrigerant and heat exchange system
CN113969139B (en) Environment-friendly refrigeration composition with excellent refrigeration and heating properties
CN112391145B (en) Environment-friendly hydrocarbon mixed refrigerant replacing R134a and application thereof
CN112745803B (en) Mixed refrigerant and air conditioning system
CN103808068A (en) Refrigerating system
CN111423852B (en) Ternary refrigeration composition and refrigeration device comprising same
CN111995987B (en) Mixed refrigerant and air conditioning system
CN112126410B (en) Mixed refrigerant, preparation method and application thereof, and automobile air conditioning system
CN112680193B (en) Mixed refrigerant, heat exchange system and household appliance
CN110628387B (en) Low-flammability heat transfer composition and heat exchange system
KR20140091139A (en) Vapor compression refrigeration/airconditioning equipment with suction line heat exchanger for improving energy efficiency using R1234ze
CN112300761B (en) Refrigerant, preparation method thereof and air conditioning system
CN115612451A (en) Heat transfer composition for heat pump air conditioner
CN110645743A (en) Centrifugal water chilling unit adopting environment-friendly refrigerant
CN111944490B (en) Mixed refrigerant, refrigerating system and air conditioner
CN113789155B (en) Mixed refrigerant and air conditioning system
CN111019610B (en) Energy-saving environment-friendly mixed refrigerant with temperature application range of-17 ℃ to-42 DEG C
CN104946206B (en) Binary mixed non-azeotropic refrigerant containing difluoromethane and trifluorobichloroethane
CN112111249B (en) Mixed refrigerant, heat exchange system and household appliance
CN107011865A (en) The mix refrigerant of ultra-high temperature air conditioner
CN113004871B (en) Refrigerant and air conditioning equipment
CN115160990B (en) Environment-friendly energy-saving composition, preparation method, application and refrigeration system thereof
CN212766226U (en) Mixed type refrigerating system for railway vehicle

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