WO1995033801A1 - Composition refrigerante melangee - Google Patents
Composition refrigerante melangee Download PDFInfo
- Publication number
- WO1995033801A1 WO1995033801A1 PCT/JP1995/001080 JP9501080W WO9533801A1 WO 1995033801 A1 WO1995033801 A1 WO 1995033801A1 JP 9501080 W JP9501080 W JP 9501080W WO 9533801 A1 WO9533801 A1 WO 9533801A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- refrigerant composition
- mixed refrigerant
- glycol
- refrigerant
- composition
- Prior art date
Links
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
- 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
-
- 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
- C09K2205/24—Only one single fluoro component present
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2210/00—Fluid
- F04C2210/26—Refrigerants with particular properties, e.g. HFC-134a
Definitions
- the present invention relates to a mixed refrigerant composition, and more particularly, to a mixed refrigerant composition having an alternative refrigerant for refrigerant.
- chlorofluorocarbon compounds (specified CFCs) have been used as refrigerants for cooling devices such as Kirkulla.
- specific fluorocarbon for example, a chemical represented by a chemical formula of CC 1 ZF 2 and generally called R-12 is known.
- R—134a is represented by the chemical formula CF 3 CH 2 F, which does not contain chlorine in the molecule, so there is no danger of destroying the ozone layer when it reaches the ozone layer and is decomposed as it is. Conceivable.
- an object of the present invention is to improve a refrigerant composition.
- an object of the present invention is to provide a mixed refrigerant composition that can be directly applied to a conventional cooling system for specific CFCs without changing various components and lubricating oil of a compression pump. is there.
- an object of the present invention is to provide a mixed refrigerant composition with an alternative chlorofluorocarbon refrigerant which can be applied to a conventional specific chlorofluorocarbon cooling device without changing the lubricating oil of various components and compression pumps.
- the mixed refrigerant composition of the present invention is reduced to a raw material mixture containing one or more polyhydric alcohols, a surfactant composition, and a lubricant at a temperature of 13 O'C or less. It is characterized by comprising a refrigerant composition obtained by mixing in a cooled hermetically sealed container, and a CFC substitute for refrigerant.
- any one of ethylene glycol, propylene glycol, tripropylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, dipropylene glycol, hexylene glycol, ethylene dalicol dimethyl ether Use a mixture of two or more.
- the surfactant composition one containing a phosphate ester-based surfactant is used.
- an alkylbenzene such as toluene or xylene or an alkylbenzene derivative such as phthalic acid is used.
- the mixed refrigerant composition of the present invention is particularly advantageously used when the refrigerant CFC is a refrigerant composition composed mainly of CF 3 CH Z F.
- the mixed refrigerant composition of the present invention may further include, as an extender, a component that does not significantly reduce the cooling action of the raw material mixture, and for example, an aqueous solution of sodium chloride is used as the extender. .
- the mixed refrigerant composition has an effect of preventing seizure of the compression pump.
- the mixed refrigerant composition by being mixed with R- 1 3 4 a which shall be the main component CF 3 CH Z F is a refrigerant CFC, its or to the cooling device of the conventional R- 1 for 2 Used.
- FIG. 1 is an explanatory cross-sectional view of an apparatus for producing a refrigerant composition to be mixed with an alternative refrigerant for refrigerant in the mixed refrigerant composition of the present invention
- FIG. 2 is a cross-sectional view of each refrigerant composition obtained by the apparatus shown in FIG.
- FIG. 3 is a graph showing the relationship between the temperature and the saturation pressure of the cooling medium
- FIG. 3 is an explanatory diagram showing a configuration example of a cooling device using the mixed refrigerant composition of the present invention as a refrigerant.
- the mixed refrigerant composition of this example is a surfactant composition containing a mixture of propylene glycol and ethylene dalicol, a phosphate ester surfactant (manufactured by Nikko Chemicals Co., Ltd., trade name: NIKK0L) and ethanol.
- Cultivation composition obtained by mixing a raw material mixture containing a product and a lubricant containing toluene and xylene in a sealed container cooled to 130 ° C. or less; the CF 3 CH Z F is a use CFC substitutes a main component is R- 1 3 4 a 3 7 mixture of wt%.
- the refrigerant composition was produced as follows using the sealed container 1 shown in FIG.
- the sealed container 1 has a cooling jacket 2 on the outside and a stirring blade 4 rotated and driven by a motor 13 inside. Further, the sealed container 1 is provided with a pressure adjusting conduit 5 at an upper part, and is connected to a vacuum pump 7a and an air compressor 7b via a pressure adjusting valve 6a.
- the pressure regulating conduit 5 is connected to a vacuum pump 7a or an air compressor 7b by operating a switching valve 6b.
- the pressure regulating valve 6a is a three-way valve, and is opened to the atmosphere when the internal pressure of the sealed container 1 becomes higher than a predetermined value, and also serves as a safety valve for keeping the internal pressure constant.
- the sealed container 1 is further provided with a thermometer 8 for measuring the internal liquid temperature and a pressure gauge 9 for measuring the internal pressure.
- a product take-off conduit 10 is provided via a take-off valve 11.
- a liquid oxygen cylinder 12 a and a liquid nitrogen cylinder 12 b are provided outside the sealed container 1, and are connected to the sealed container 1 and the cooling jacket 2 by a liquefier body supply conduit 13.
- the liquefier body supply conduit 13 is provided with a liquefier body supply switching valve 13a, a liquid oxygen supply valve 13b, and a liquid nitrogen supply valve 13c.
- the liquid oxygen or liquid nitrogen is sealed in a sealed container 1 or a cooling jacket 2. Can be supplied in a fixed amount.
- a raw material ethylene glycol tank 14 a propylene glycol tank 15, a sodium chloride aqueous solution tank 16, a surfactant composition tank 17, and a lubricant tank 18.
- the raw material conduit 19 is provided with raw material supply valves 20a, 20b, 20c, 20d, and 20e so that each of the raw materials can be supplied quantitatively.
- a raw material press-in pump 21 is provided in the raw material conduit 19 so that the raw material can be supplied even when the pressure in the sealed container 1 is high.
- a circulation conduit 22 for taking out the supplied liquefied gas and circulating it to the liquefied gas supply conduit 13 is connected to the cooling jacket 2 via a check valve 23. Further, a cooler 24 for cooling the liquefied gas taken out from the cooling jacket 2 is provided in the middle of the circulation conduit 22, and a thermometer 25 for measuring the internal liquid temperature is provided in the cooling jacket 2. And a pressure gauge 26 for measuring the internal pressure.
- the liquefied gas supply switching valve 13a is switched, the liquefied gas supply conduit 13 is connected to the sealed container 1, the liquid nitrogen supply valve 13c is opened, and a predetermined amount of liquid is supplied to the sealed container 1. Liquid nitrogen was supplied. Then, after the liquid nitrogen is vaporized in the sealed container 1 to cool the inside of the sealed container 1, the switching valve 6b is switched to connect the pressure regulating conduit 5 to the vacuum bomb 7a. Exhausting the air break allows the sealed container 1 Cooled down.
- the liquefied gas supply switching valve 13a is switched to connect the liquefied gas rest supply conduit 13 to the cooling vessel jacket 2, and the liquid nitrogen supply valve 13c is opened to measure the quantity in the cooling vessel jacket 2. Liquid nitrogen was supplied.
- the phosphoric acid-based surfactant solution is prepared by mixing a phosphoric acid-based surfactant and ethanol in a weight ratio of 2: 5 in advance and is contained in the surfactant composition tank 17.
- the lubricant is prepared by previously mixing toluene and xylene at a weight ratio of 1: 2, and is stored in the lubricant tank 18.
- the mixture was stirred for 30 minutes by the stirring blade 4 to obtain a refrigerant composition.
- the liquid temperature in the sealed container 1 was maintained in the range of 150 to 130 ° C during the stirring, and rose to ⁇ 0 ° C after the stirring.
- the obtained refrigerant composition was transferred from the product discharge conduit 10 to the service can for supplying the refrigerant to the cooling device by opening the discharge valve 11.
- the boiling point at each pressure of the refrigerant composition obtained in this example was measured using the apparatus shown in FIG.
- a predetermined amount of the refrigerant composition is supplied to the sealed container 1, and the internal pressure of the sealed container 1 is first set to 1750 nunHg by a vacuum pump 7a at a gauge pressure measured by the pressure gauge 9.
- the temperature of the refrigerant composition in the sealed container 1 is waiting for the stable, and boiling the temperature in one 750mmH g.
- the pressure regulating valve 6a is opened and closed to sequentially adjust the internal pressure of the sealed container 1 to -500 Hg, -250 mmHg. O mmHg, and the above operation is repeated to measure the boiling point at each pressure.
- the pressure regulating conduit 5 is switched to the air compressor 7b by the switching valve 6b, and the inside of the sealed container 1 is pressurized.
- the pressing operation is sequentially adjusted N l kg in m 2 units in the range of 1 to 8 kg / cm 2 in gauge pressure measured by the pressure gauge 9 the inner pressure of the sealed container 1 by opening and closing the pressure regulating valve 6 a
- the above operation is repeated to measure the boiling point at each pressure.
- Fig. 2 shows the obtained results. From FIG. 2, it is clear that the refrigerant composition itself behaves similarly to R-12.
- the cooling device 31 in FIG. 3 is a power cooler for a passenger car, and a cooling device using R-12 as a refrigerant was used as it is.
- a compression pump 32, a condenser 33, a throttle valve 34, and an evaporator 35 are connected by a conduit 36 to form a cooling cycle.
- the condenser 33 and the evaporator 35 are connected to fans 37 and 38, respectively.
- a refrigerant supply port 39 is provided in a conduit 36 between the compression pump 32 and the condenser 33, and a filter 40 is provided in a conduit 36 between the condenser 33 and the throttle valve 34.
- the supplied refrigerant is in the form of refrigerant vapor A at the outlet of the evaporator 35, and is adiabatically compressed by mechanical work in the compression pump 32 to become high-temperature and high-pressure vapor B.
- the liquid supplied from fan 37 is condensed at a constant pressure while releasing heat at a high level of temperature during the air break to become liquid C. At this time, the gas supplied from the fan 37 has a higher temperature and is discharged outside the vehicle compartment.
- the liquid C is isenthalpy-expanded by being blown out from the throttle valve 34 to become low-temperature wet steam D, and is supplied from the fan 38 at a low temperature in the evaporator 35.
- the gas is cooled by absorbing the heat of the air break, returning to low-temperature, low-pressure steam A.
- the gas cooled by the evaporator 35 is discharged into the passenger compartment from the outlet 41 to perform cooling.
- cooling device 31 Since such a cooling device 31 is originally designed to use R-12, which is a specific CFC, as a refrigerant, when using R-134a as a refrigerant, the lubricating oil of the compression pump 32 is used. If you do not replace it, burning will occur during operation. Also, gas leakage will occur unless the 0 ring of the filter 40 is replaced.
- the temperature of the gas discharged from the outlet was 20.2'C at the beginning.
- the temperature of the gas discharged from the outlet is decreased by 28.2 ° from the initial temperature to 18 °. A cooling effect was observed. No abnormalities such as burn-in of the compression pump 32 and gas leakage were observed.
- liquid oxygen supplied from the liquid oxygen cylinder 12a was used for pre-cooling in the sealed container 1 before mixing and cooling by the cooling jacket 2 during mixing, and 2% was used as a raw material of the refrigerant composition.
- a refrigerant composition was produced in the same manner as in Example 1 except that 50 g of an aqueous sodium chloride solution was added.
- the boiling point at each pressure of the refrigerant composition obtained in the present example was measured in the same manner as in Example 1 using the apparatus of FIG. Fig. 2 shows the obtained results. From FIG. 2, it is clear that the refrigerant composition itself behaves similarly to R-12.
- 340 g of the refrigerant composition obtained in this example was supplied from the service can to the cooling device 31 shown in FIG. 3, and then 80 g of R-134a was gradually supplied to the cooling device 31.
- the mixture was mixed with the refrigerant composition to obtain a mixed refrigerant composition.
- the mixed refrigerant set The cooling device was operated with the refrigerant and the cooling effect was tested.
- the temperature of the gas discharged from the outlet is initially 13.8 ° C.
- the temperature of the outlet is The temperature of the gas released from the furnace was reduced by 20.7 ° from the initial temperature to ⁇ 6.9′C, and a cooling effect was observed. Also, no abnormalities such as seizure of the compression pump 32 and gum leakage were found.
- the refrigerant composition raw materials were 500 g of propylene glycol, 100 g of a phosphoric acid-based surfactant solution, 150 g of a lubricant, and 50 g of a 2% aqueous sodium chloride solution, and a refrigerant composition was produced in the same manner as in Example 1.
- the phosphoric acid-based surfactant solution is prepared by mixing a phosphoric acid-based surfactant and ethyl ether in a weight ratio of 1: 1 in advance, and is contained in the surfactant composition dunk 17.
- the lubricant is prepared by mixing toluene, xylene and phthalic acid in a weight ratio of 1: 1: 1 in advance, and is contained in the lubricant tank 18.
- the temperature of the gas discharged from the outlet was initially 17.6 ° C.
- Temperature of the gas discharged from the serial outlet is lowered 2 0 9.
- the initial temperature 8. 4 'C the cooling effect was observed. No abnormalities such as seizure of the compression pump 32 and gas leakage were observed.
- the mixed refrigerant composition of the present invention even if various components of the conventional specific CFC cooling device and the lubricating oil of the compression pump are used without change, the compression It can be operated without seizure, gas leakage, etc., and a cooling effect can be obtained.
- the mixed refrigerant composition can prevent seizure of the compression pump of the conventional cooling device by mixing a lubricant.
- the mixed refrigerant composition can be used as it is in a conventional R-12 cooling system by mixing it with R-134a containing CF 3 CH 2 F as an alternative refrigerant for refrigerant as a main component.
- R-134a containing CF 3 CH 2 F as an alternative refrigerant for refrigerant as a main component.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Thermal Sciences (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Lubricants (AREA)
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP95920239A EP0784090A1 (en) | 1995-06-01 | 1995-06-01 | Mixed coolant composition |
AU25759/95A AU2575995A (en) | 1994-06-03 | 1995-06-01 | Mixed refrigerant composition |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6122729A JPH07331232A (ja) | 1994-06-03 | 1994-06-03 | 混合冷媒組成物 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1995033801A1 true WO1995033801A1 (fr) | 1995-12-14 |
Family
ID=14843146
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1995/001080 WO1995033801A1 (fr) | 1994-06-03 | 1995-06-01 | Composition refrigerante melangee |
Country Status (3)
Country | Link |
---|---|
JP (1) | JPH07331232A (ja) |
AU (1) | AU2575995A (ja) |
WO (1) | WO1995033801A1 (ja) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04300996A (ja) * | 1991-03-29 | 1992-10-23 | Idemitsu Kosan Co Ltd | 冷凍機油組成物 |
JPH05140571A (ja) * | 1991-11-25 | 1993-06-08 | Idemitsu Kosan Co Ltd | 圧縮式冷凍システムの潤滑方法 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2999622B2 (ja) * | 1992-02-20 | 2000-01-17 | 日石三菱株式会社 | フッ化アルカン冷媒用冷凍機油組成物 |
JPH05339592A (ja) * | 1992-06-10 | 1993-12-21 | Mitsubishi Oil Co Ltd | 冷凍機油組成物 |
JPH0688086A (ja) * | 1992-09-07 | 1994-03-29 | Kyoseki Seihin Gijutsu Kenkyusho:Kk | 潤滑油組成物 |
JPH06305991A (ja) * | 1993-04-23 | 1994-11-01 | A G Technol Kk | クロロフルオロメタンクラスレート化合物 |
-
1994
- 1994-06-03 JP JP6122729A patent/JPH07331232A/ja active Pending
-
1995
- 1995-06-01 WO PCT/JP1995/001080 patent/WO1995033801A1/ja not_active Application Discontinuation
- 1995-06-01 AU AU25759/95A patent/AU2575995A/en not_active Abandoned
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04300996A (ja) * | 1991-03-29 | 1992-10-23 | Idemitsu Kosan Co Ltd | 冷凍機油組成物 |
JPH05140571A (ja) * | 1991-11-25 | 1993-06-08 | Idemitsu Kosan Co Ltd | 圧縮式冷凍システムの潤滑方法 |
Non-Patent Citations (1)
Title |
---|
See also references of EP0784090A4 * |
Also Published As
Publication number | Publication date |
---|---|
AU2575995A (en) | 1996-01-04 |
JPH07331232A (ja) | 1995-12-19 |
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