WO2015083834A1 - ジフルオロメタン(HFC32)、ペンタフルオロエタン(HFC125)及び1,1,1,2-テトラフルオロエタン(HFC134a)を含む組成物 - Google Patents
ジフルオロメタン(HFC32)、ペンタフルオロエタン(HFC125)及び1,1,1,2-テトラフルオロエタン(HFC134a)を含む組成物 Download PDFInfo
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- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
- C09K5/02—Materials undergoing a change of physical state when used
- C09K5/04—Materials undergoing a change of physical state when used the change of state being from liquid to vapour or vice versa
- C09K5/041—Materials undergoing a change of physical state when used the change of state being from liquid to vapour or vice versa for compression-type refrigeration systems
- C09K5/044—Materials undergoing a change of physical state when used the change of state being from liquid to vapour or vice versa for compression-type refrigeration systems comprising halogenated compounds
- C09K5/045—Materials undergoing a change of physical state when used the change of state being from liquid to vapour or vice versa for compression-type refrigeration systems comprising halogenated compounds containing only fluorine as halogen
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- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M105/00—Lubricating compositions characterised by the base-material being a non-macromolecular organic compound
- C10M105/08—Lubricating compositions characterised by the base-material being a non-macromolecular organic compound containing oxygen
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- C10M105/38—Esters of polyhydroxy compounds
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- C10M107/00—Lubricating compositions characterised by the base-material being a macromolecular compound
- C10M107/20—Lubricating compositions characterised by the base-material being a macromolecular compound containing oxygen
- C10M107/22—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C10M107/24—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to an alcohol, aldehyde, ketonic, ether, ketal or acetal radical
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- C10M107/00—Lubricating compositions characterised by the base-material being a macromolecular compound
- C10M107/20—Lubricating compositions characterised by the base-material being a macromolecular compound containing oxygen
- C10M107/30—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M107/32—Condensation polymers of aldehydes or ketones; Polyesters; Polyethers
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- C10M171/00—Lubricating compositions characterised by purely physical criteria, e.g. containing as base-material, thickener or additive, ingredients which are characterised exclusively by their numerically specified physical properties, i.e. containing ingredients which are physically well-defined but for which the chemical nature is either unspecified or only very vaguely indicated
- C10M171/008—Lubricant compositions compatible with refrigerants
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- 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
- F25B31/00—Compressor arrangements
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- C09K2205/00—Aspects relating to compounds used in compression type refrigeration systems
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- C09K2205/00—Aspects relating to compounds used in compression type refrigeration systems
- C09K2205/22—All components of a mixture being fluoro compounds
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- C09K2205/00—Aspects relating to compounds used in compression type refrigeration systems
- C09K2205/40—Replacement mixtures
- C09K2205/43—Type R22
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
- C10M2207/28—Esters
- C10M2207/283—Esters of polyhydroxy compounds
- C10M2207/2835—Esters of polyhydroxy compounds used as base material
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- C—CHEMISTRY; METALLURGY
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/02—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/04—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to an alcohol or ester thereof; bound to an aldehyde, ketonic, ether, ketal or acetal radical
- C10M2209/043—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to an alcohol or ester thereof; bound to an aldehyde, ketonic, ether, ketal or acetal radical used as base material
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- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
- C10M2209/1033—Polyethers, i.e. containing di- or higher polyoxyalkylene groups used as base material
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2020/00—Specified physical or chemical properties or characteristics, i.e. function, of component of lubricating compositions
- C10N2020/09—Characteristics associated with water
- C10N2020/097—Refrigerants
- C10N2020/101—Containing Hydrofluorocarbons
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/30—Refrigerators lubricants or compressors lubricants
-
- 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
- F25B2500/00—Problems to be solved
- F25B2500/29—High ambient temperatures
Definitions
- the present invention relates to a mixed refrigerant composition used for a refrigerator.
- Chlorodifluoromethane is a kind of chlorofluorocarbon (HCFC) and is also known by other names such as R22 and HCFC22 (in this specification, it may be expressed as “R22”).
- R22 has been widely used as a refrigerant, but it has been pointed out that it can cause ozone layer destruction and global warming.
- R410A which is a mixed refrigerant of HFC32 and HFC125, has already been widely used as a representative.
- R22 is about to start based on the Montreal Protocol, and it is the condition for replacement that the ozone layer is not destroyed (the ozone depletion coefficient is zero). Is also a candidate for that alternative.
- the vicinity of the outdoor unit of the refrigerator may be very hot.
- the temperature exceeds 45 ° C
- the outdoor unit periphery may exceed 60 ° C.
- the condensing temperature is generally set to about 15K higher than the outside air temperature, depending on the capacity of the heat exchanger.
- the currently used R410A has a critical temperature of 71.6 ° C, which is about 25K lower than R22. For this reason, when the refrigeration cycle is operated under a setting condition where the condensing temperature is high (over 50 ° C), the critical temperature approaches the condensing temperature, the latent heat of vaporization decreases, and the theory represents the cooling capacity per 1kW of power consumption during rated cooling Cooling COP (Coefficient Of Performance) tends to deteriorate. When the theoretical cooling COP is poor, the cooling operation time is particularly long in a high outside air temperature region, so that there is a large difference in power consumption.
- the present invention is superior to R410A, which is an existing alternative refrigerant of R22, even under operating conditions where the condensation temperature is high, such as under high outside air temperature.
- the refrigeration effect is equivalent to that of R22.
- an object is to provide an excellent refrigerant.
- the present invention has been completed as a result of further research based on such knowledge.
- the present invention includes the following embodiments.
- Item 1 A composition containing a refrigerant, The refrigerant contains difluoromethane (HFC32), pentafluoroethane (HFC125) and 1,1,1,2-tetrafluoroethane (HFC134a);
- HFC32 difluoromethane
- HFC125 pentafluoroethane
- HFC134a 1,1,1,2-tetrafluoroethane
- Item 3. The composition according to Item 1 or 2, further comprising refrigerating machine oil.
- Item 4 The composition according to Item 3, wherein the refrigerating machine oil is at least one refrigerating machine oil selected from the group consisting of polyalkylene glycol (PAG), polyol ester (POE) and polyvinyl ether (PVE).
- PAG polyalkylene glycol
- POE polyol ester
- PVE polyvinyl ether
- Item 5. The composition according to any one of Items 1 to 4, which is used as an alternative refrigerant for chlorodifluoromethane (R22).
- Item 6. The composition according to any one of Items 1 to 5, which is used for operating a refrigeration cycle having a condensation temperature in the range of 50 to 70 ° C.
- Item 7 Use of the composition according to any one of items 1 to 4 as an alternative refrigerant for R22.
- Item 8 Use of the composition according to any one of items 1 to 4 for operating a refrigeration cycle having a condensation temperature in the range of 50 to 70 ° C.
- Item 9. A refrigeration method comprising a step of operating a refrigeration cycle using the composition according to any one of items 1 to 4.
- Item 10 A method for operating a refrigerator comprising the process according to Item 9.
- Item 11 The method according to Item 10, wherein the refrigerator is a vapor compression refrigerator.
- Item 12 A refrigerator comprising the composition according to any one of Items 1 to 4.
- composition of the present invention has (1) cooling COP superior to R410A and (2) refrigeration capacity equivalent to R22 even under use conditions where the condensation temperature is high, such as under high outside air temperature. Or it has the main effect of being excellent.
- composition of the present invention has, as additional effects, (3) an ozone depletion coefficient of 0, (4) a GWP value lower than R22, and (5) nonflammability. It may be.
- composition of the present invention comprises: A composition containing a refrigerant,
- the refrigerant is difluoromethane (sometimes referred to herein as “HFC32”), pentafluoroethane (sometimes referred to herein as “HFC125”), and 1,1,1, 2-tetrafluoroethane (in this specification, sometimes referred to as “HFC134a”.
- FIG. 1 shows points A, B, and C in a triangular composition diagram (mass ratio) having HFC32, HFC125, and HFC134a as vertices.
- the composition of the present invention is a composition containing a refrigerant,
- the refrigerant contains HFC32, HFC125 and HFC134a,
- the refrigeration capacity of the composition of the present invention is improved by at least 5% or more in the R22 ratio.
- the cooling COP of the composition of the present invention is improved by at least 2% or more compared to the R410A ratio.
- the composition of the present invention becomes incombustible.
- the composition of the present invention comprises: A composition containing a refrigerant,
- the refrigerant contains HFC32, HFC125 and HFC134a,
- FIG. 2 shows points A ′, B ′, and C in a triangular composition diagram (mass ratio) having HFC32, HFC125, and HFC134a as vertices.
- the composition of the present invention is a composition containing a refrigerant,
- the refrigerant contains HFC32, HFC125 and HFC134a,
- the refrigerating capacity is improved by at least 10% or more in comparison with R22.
- a composition having a mass ratio in the range of a triangle having apexes of point A ′, point B ′ and point C is preferable because it is more excellent in refrigerating capacity.
- the composition of the present invention contains HFC32, HFC125 and HFC134a as a refrigerant (comprising).
- the composition of the present invention may contain a refrigerant other than HFC32, HFC125, and HFC134a as a refrigerant as long as the main effects of the present invention are not hindered.
- the type of another refrigerant and the ratio of the refrigerant to the whole refrigerant can be appropriately selected and set within a range that does not hinder the main effects of the present invention.
- the ratio of the total amount of another refrigerant to the whole refrigerant is preferably 0 mass% to 10 mass%, more preferably 0 mass% to 5 mass%.
- the refrigerant may consist of HFC32, HFC125, and HFC134a only (ie, a three-component mixed refrigerant).
- the composition of the present invention is nonflammable and has a low GWP.
- composition of the present invention is not particularly essential, but may further contain refrigerating machine oil.
- the composition of the present invention further contains at least a refrigerating machine oil in addition to the refrigerant.
- the composition of the present invention is not particularly limited as a refrigerating machine oil, but can be appropriately selected from commonly used refrigerating machine oils. In that case, if necessary, a refrigerating machine oil that is more excellent in terms of an action of improving miscibility with the refrigerant, stability of the refrigerant, and the like may be appropriately selected.
- the stability of the refrigerant can be evaluated by a commonly used method. As an example of such a method, a method of evaluating the amount of free fluorine ions as an index according to ASHRE standard 97-2007. Etc. In addition, a method for evaluating the total acid value (total acid number) as an index is also included. This method can be performed, for example, according to ASTM D-974-06.
- composition of the present invention is not particularly limited as a refrigerating machine oil, and examples thereof include polyalkylene glycol (sometimes referred to as “PAG” in this specification), polyol ester (herein referred to as “POE”). And at least one selected from the group consisting of polyvinyl ether (sometimes referred to as “PVE” in the present specification).
- PAG polyalkylene glycol
- POE polyol ester
- PVE polyvinyl ether
- the refrigerating machine oil is not particularly limited, but one having a kinematic viscosity at 40 ° C. of 5 to 400 cSt can be used. A kinematic viscosity within this range is preferable in terms of lubrication.
- the ratio of the refrigerating machine oil to the whole composition is not particularly limited, but is usually 10% by weight to 50% by weight.
- composition of the present invention is not particularly essential, but may contain a stabilizer as required, for example, when high stability is required under severe use conditions.
- Such stabilizers include (i) aliphatic nitro compounds such as nitromethane and nitroethane, aromatic nitro compounds such as nitrobenzene and nitrostyrene, (ii) ethers such as 1,4-dioxane, 2,2,3 1,3,3-pentafluoropropylamine, amines such as diphenylamine, butylhydroxyxylene, benzotriazole and the like.
- the composition of the present invention may contain these stabilizers alone or in combination of two or more.
- the content of the stabilizer varies depending on the type of the stabilizer, but can be appropriately set within a range that does not hinder the main effects of the present invention.
- the content of the stabilizer is usually preferably about 0.01 to 5 parts by weight and more preferably about 0.05 to 2 parts by weight with respect to 100 parts by weight of the total amount of the refrigerant.
- composition of the present invention may further contain a polymerization inhibitor as necessary.
- the polymerization inhibitor is not particularly limited, and examples thereof include 4-methoxy-1-naphthol, hydroquinone, hydroquinone methyl ether, dimethyl-t-butylphenol, 2,6-di-tert-butyl-p-cresol, benzotriazole, and the like. Is mentioned.
- the content of the polymerization inhibitor is usually preferably about 0.01 to 5 parts by weight and more preferably about 0.05 to 2 parts by weight with respect to 100 parts by weight of the total amount of the refrigerant.
- composition of the present invention may further contain a desiccant as necessary.
- composition of the present invention may further contain other components as necessary.
- composition of the present invention can be used as an alternative refrigerant for R22.
- the composition of the present invention can be used instead of R22.
- composition of the present invention has characteristics similar to those of R22, the composition of the present invention can be used as a R22 drop-in type alternative refrigerant or a nearly drop-in refrigerant in a refrigerating and air-conditioning apparatus in which R22 is used. ) Type alternative refrigerant.
- composition of the present invention is not particularly limited, but can also be used to operate a refrigeration cycle having a condensation temperature of 50 to 70 ° C.
- the critical temperature is closer to the condensation temperature, the latent heat of vaporization is reduced, and the cooling capacity per 1kW of power consumption during rated cooling Theoretical cooling COP (Coefficient Of Performance) representing tended to deteriorate.
- the composition of the present invention has an improved cooling COP of 2% or more in comparison with R410A, and can maintain an excellent cooling COP even when used in a refrigeration cycle having a condensation temperature of 50 to 70 ° C. For this reason, the composition of the present invention is particularly suitable for use in operating a refrigeration cycle having a condensation temperature of 50 to 70 ° C.
- a refrigerator means a general apparatus that lowers the temperature of the surrounding air by taking away the heat of an object or space and maintains this low temperature.
- a refrigerator refers to a conversion device that obtains energy from the outside and performs work to convert energy in order to transfer heat from a lower temperature to a higher temperature.
- a refrigerator is synonymous with a heat pump in a broad sense.
- the refrigerator in a narrow sense, is used separately from the heat pump due to the difference in the temperature range to be used and the operating temperature.
- a refrigerator that places a low-temperature heat source in a temperature range lower than the atmospheric temperature
- a refrigerator that uses a heat dissipation action by driving a refrigeration cycle with a low-temperature heat source placed near the atmospheric temperature.
- Some air conditioners having the “cooling mode” and the “heating mode” have the functions of a refrigerator in a narrow sense and a heat pump in a narrow sense even though they are the same device.
- “refrigerator” and “heat pump” are all used in a broad sense.
- the refrigerator is not particularly limited.
- a refrigerator a water cooler, an ice maker, a turbo refrigerator, a chiller (chilling unit), a screw refrigerator, a refrigerator refrigerator unit, a refrigerator showcase, a refrigerator showcase, an automatic Vending machines, home air conditioners, packaged air conditioners, window type air conditioners and mobile air conditioners are included.
- Refrigerators are not particularly limited, but include a wide variety of vapor compression refrigerators, steam injection refrigerators, air cycle refrigerators, electronic refrigerators, and the like.
- a typical example is a vapor compression refrigerator.
- Refrigerator that can use the composition of the present invention may be for home use or for business use (including industrial use, experimental use, transportation use, etc.).
- the size of the refrigerator is not particularly limited, and may be for a beer server or a container, for example.
- Mobile air conditioners are not particularly limited, and examples include car air conditioners, railway air conditioners, transporter air conditioners, spot air conditioners, portable air conditioners, large agricultural machine air conditioners, and construction machine air conditioners.
- Refrigeration method is a method including a step of operating a refrigeration cycle using the composition of the present invention.
- the details of the refrigeration cycle can be set as appropriate.
- Test example 1 The refrigerant mixture of R32 / R125 / R134a shown in Examples 1 to 15 in Table 1 is used as the refrigerant, and the refrigerant evaporation temperature in the evaporator is set to 5 ° C. and the refrigerant condensation temperature in the condenser is set to a heat pump with a cooling rated capacity of 4 kW. The operation was performed as shown in Table 1, with a superheat degree of 1K and a supercooling degree of 5K.
- the heat pump was operated under the same conditions as described above except that the refrigerant R410A (Comparative Example 1) was used. From these results, the coefficient of performance (cooling COP) was determined by the following equation.
- Cooling COP refrigeration capacity / power consumption
- the cooling COP ratio represents a ratio when the value when R410A is used is 100.
- Test example 2 R32 / R125 / R134a mixed refrigerant shown in Examples 16 to 30 of Table 1 is used as the refrigerant, and the refrigerant evaporating temperature in the evaporator is 5 ° C. and the refrigerant condensing temperature in the condenser is applied to a heat pump with a cooling capacity of 4 kW.
- the operation was performed as shown in Table 1, with a superheat degree of 1K and a supercooling degree of 5K.
- the heat pump was operated under the same conditions as described above except that refrigerant R22 (Comparative Example 2) was used.
- Refrigeration effect refrigeration capacity / refrigerant circulation amount
- the refrigeration effect ratio represents the ratio when the value when R22 is used is 100.
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Abstract
Description
該三成分の質量比が、該三成分を各頂点とする三角組成図において:
点A(HFC32/HFC125/HFC134a=36/25/39mass%);
点B(HFC32/HFC125/HFC134a=36/31/33mass%);及び
点C(HFC32/HFC125/HFC134a=43/34/23mass%)
の三点を頂点とする三角形の範囲内にある組成物を用いることにより上記課題を解決できることを見出した。
冷媒が、ジフルオロメタン(HFC32)、ペンタフルオロエタン(HFC125)及び1,1,1,2-テトラフルオロエタン(HFC134a)を含有し、
該三成分の質量比が、該三成分を各頂点とする三角組成図において:
点A(HFC32/HFC125/HFC134a=36/25/39mass%);
点B(HFC32/HFC125/HFC134a=36/31/33mass%);及び
点C(HFC32/HFC125/HFC134a=43/34/23mass%)
の三点を頂点とする三角形の範囲内にある、
組成物。
冷媒が、HFC32、HFC125及びHFC134aを含有し、
該三成分の質量比が、該三成分を各頂点とする三角組成図において:
点A’(HFC32/HFC125/HFC134a=40/30/30mass%);
点B’(HFC32/HFC125/HFC134a=40/32/28mass%);及び
点C(HFC32/HFC125/HFC134a=43/34/23mass%)
の三点を頂点とする三角形の範囲内にある、
組成物。
該三成分を、質量比が、該三成分を各頂点とする三角組成図において:
点A(HFC32/HFC125/HFC134a=36/25/39mass%);
点B(HFC32/HFC125/HFC134a=36/31/33mass%);及び
点C(HFC32/HFC125/HFC134a=43/34/23mass%)
の三点を頂点とする三角形の範囲内となるように混合する工程
を含む製造方法。
本発明の組成物は、
冷媒を含有する組成物であって、
冷媒が、ジフルオロメタン(本明細書において、「HFC32」と表記することがある。)、ペンタフルオロエタン(本明細書において、「HFC125」と表記することがある。)及び1,1,1,2-テトラフルオロエタン(本明細書において、「HFC134a」と表記することがある。
)を含有し、
該三成分の質量比が、該三成分を各頂点とする三角組成図において:
点A(HFC32/HFC125/HFC134a=36/25/39mass%);
点B(HFC32/HFC125/HFC134a=36/31/33mass%);及び
点C(HFC32/HFC125/HFC134a=43/34/23mass%)
の三点を頂点とする三角形の範囲内にある、
組成物である。
y=0.975*x-20.475
z=100-x-y
21≦x≦61
で示される範囲である(図1)。
y=0.3649*x+18.35
z=100-x-y
0≦x≦59.83
で示される範囲である(図1)。
冷媒が、HFC32、HFC125及びHFC134aを含有し、
該三成分の質量比(HFC32/HFC125/HFC134a=x/y/z mass%)が、下記式(1)~(4):
36≦x<43 (1)
y=0.365*x+18.395 (2)
y=0.3649*x+18.35 (3)
z=100-x-y (4)
を満たす組成物である。
冷媒を含有する組成物であって、
冷媒が、HFC32、HFC125及びHFC134aを含有し、
該三成分の質量比が、該三成分を各頂点とする三角組成図において:
点A’(HFC32/HFC125/HFC134a=40/30/30mass%);
点B’(HFC32/HFC125/HFC134a=40/32/28mass%);及び
点C(HFC32/HFC125/HFC134a=43/34/23mass%)
の三点を頂点とする三角形の範囲内にある、
組成物であってもよい。
冷媒が、HFC32、HFC125及びHFC134aを含有し、
該三成分の質量比(HFC32/HFC125/HFC134a=x/y/z mass%)が、下記式(5):
40≦x<43 (5)
及び前記式(2)~(4)を満たす組成物である。
本発明の組成物は、R22の代替冷媒として用いることができる。
なお、「冷房モード」及び「暖房モード」等を有するエアコン等のように、同一の機器であるにもかかわらず、狭義の冷凍機及び狭義のヒートポンプの機能を兼ね備えるものも存在する。本明細書においては、特に断りのない限り、「冷凍機」及び「ヒートポンプ」は全て広義の意味で用いられる。
本発明の冷凍方法は、本発明の組成物を用いて冷凍サイクルを運転する工程を含む、方法である。
冷媒として表1の実施例1~15に示すR32/R125/R134a混合冷媒を使用し、冷房定格能力4kWのヒートポンプに、蒸発器における冷媒の蒸発温度を5℃、凝縮器における冷媒の凝縮温度を表1の通りとし、過熱度1Kおよび過冷却度を5Kとして、運転を行った。
これらの結果から、成績係数(冷房COP)を次式により求めた。
試験例2
冷媒に表1の実施例16~30に示すR32/R125/R134a混合冷媒を使用し、冷房定格能力4kWのヒートポンプに、蒸発器における冷媒の蒸発温度を5℃、凝縮器における冷媒の凝縮温度を表1の通りとし、過熱度1Kおよび過冷却度を5Kとして、運転を行った。
Claims (13)
- 冷媒を含有する組成物であって、
冷媒が、ジフルオロメタン(HFC32)、ペンタフルオロエタン(HFC125)及び1,1,1,2-テトラフルオロエタン(HFC134a)を含有し、
該三成分の質量比が、該三成分を各頂点とする三角組成図において:
点A(HFC32/HFC125/HFC134a=36/25/39mass%);
点B(HFC32/HFC125/HFC134a=36/31/33mass%);及び
点C(HFC32/HFC125/HFC134a=43/34/23mass%)
の三点を頂点とする三角形の範囲内にある、
組成物。 - 冷媒を含有する組成物であって、
冷媒が、HFC32、HFC125及びHFC134aを含有し、
該三成分の質量比が、該三成分を各頂点とする三角組成図において:
点A’(HFC32/HFC125/HFC134a=40/30/30mass%);
点B’(HFC32/HFC125/HFC134a=40/32/28mass%);及び
点C(HFC32/HFC125/HFC134a=43/34/23mass%)
の三点を頂点とする三角形の範囲内にある、
組成物。 - さらに冷凍機油を含有する、請求項1又は2に記載の組成物。
- 前記冷凍機油が、ポリアルキレングリコール(PAG)、ポリオールエステル(POE)及びポリビニルエーテル(PVE)からなる群より選択される少なくとも一種の冷凍機油である、請求項3に記載の組成物。
- クロロジフルオロメタン(R22)の代替冷媒として用いられる、請求項1~4のいずれか一項に記載の組成物。
- 凝縮温度が50~70℃である冷凍サイクルを運転するために用いられる、請求項1~5のいずれか一項に記載の組成物。
- 請求項1~4のいずれか一項に記載の組成物の、R22の代替冷媒としての使用。
- 請求項1~4のいずれか一項に記載の組成物の、凝縮温度が50~70℃である冷凍サイクルを運転するための使用。
- 請求項1~4のいずれか一項に記載の組成物を用いて冷凍サイクルを運転する工程を含む、冷凍方法。
- 請求項9に記載の工程を含有する、冷凍機(refrigerator)の運転方法。
- 前記冷凍機が、蒸気圧縮冷凍機である、請求項10に記載の方法。
- 請求項1~4のいずれか一項に記載の組成物を含む冷凍機。
- HFC32、HFC125及びHFC134aを含有する組成物の製造方法であって、
該三成分を、質量比が、該三成分を各頂点とする三角組成図において:
点A(HFC32/HFC125/HFC134a=36/25/39mass%);
点B(HFC32/HFC125/HFC134a=36/31/33mass%);及び
点C(HFC32/HFC125/HFC134a=43/34/23mass%)
の三点を頂点とする三角形の範囲内となるように混合する工程
を含む製造方法。
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US15/100,757 US10294400B2 (en) | 2013-12-06 | 2014-12-05 | Composition including difluoromethane (HFC-32), pentafluoroethane (HFC-125), and 1,1,1,2-tetrafluoroethane (HFC-134A) |
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JP2013-253456 | 2013-12-06 | ||
JP2013253456 | 2013-12-06 |
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WO2015083834A1 true WO2015083834A1 (ja) | 2015-06-11 |
Family
ID=53273580
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PCT/JP2014/082309 WO2015083834A1 (ja) | 2013-12-06 | 2014-12-05 | ジフルオロメタン(HFC32)、ペンタフルオロエタン(HFC125)及び1,1,1,2-テトラフルオロエタン(HFC134a)を含む組成物 |
Country Status (3)
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US (1) | US10294400B2 (ja) |
JP (1) | JP5858130B2 (ja) |
WO (1) | WO2015083834A1 (ja) |
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US20150144833A1 (en) * | 2012-05-11 | 2015-05-28 | Eco D'gas As | Refrigerant gas composition |
WO2016132818A1 (ja) * | 2015-02-19 | 2016-08-25 | ダイキン工業株式会社 | フッ素化炭化水素の混合物を含有する組成物及びその製造方法 |
WO2018194113A1 (ja) * | 2017-04-21 | 2018-10-25 | ダイキン工業株式会社 | 冷媒を含有する組成物及びその応用 |
CN109996854A (zh) * | 2016-11-28 | 2019-07-09 | 大金工业株式会社 | 致冷剂组合物的转移填充方法 |
WO2021065944A1 (ja) | 2019-09-30 | 2021-04-08 | ダイキン工業株式会社 | 空気調和装置 |
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US20160369144A1 (en) | 2016-12-22 |
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JP2015129272A (ja) | 2015-07-16 |
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