EP2667116B1 - Procédé et dispositif destinés au refroidissement - Google Patents

Procédé et dispositif destinés au refroidissement Download PDF

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Publication number
EP2667116B1
EP2667116B1 EP12168675.2A EP12168675A EP2667116B1 EP 2667116 B1 EP2667116 B1 EP 2667116B1 EP 12168675 A EP12168675 A EP 12168675A EP 2667116 B1 EP2667116 B1 EP 2667116B1
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EP
European Patent Office
Prior art keywords
carbon dioxide
carrier medium
medium
liquid
outlet
Prior art date
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Application number
EP12168675.2A
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German (de)
English (en)
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EP2667116A1 (fr
Inventor
Patrick Matheoud
Dr. Friedhelm Herzog
James Hennequin
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.)
Messer Group GmbH
Messer France SAS
Original Assignee
Messer Group GmbH
Messer France SAS
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Publication date
Application filed by Messer Group GmbH, Messer France SAS filed Critical Messer Group GmbH
Priority to EP12168675.2A priority Critical patent/EP2667116B1/fr
Publication of EP2667116A1 publication Critical patent/EP2667116A1/fr
Application granted granted Critical
Publication of EP2667116B1 publication Critical patent/EP2667116B1/fr
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
    • F25B9/002—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant
    • F25B9/006—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant the refrigerant containing more than one component
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
    • F25B9/002—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant
    • F25B9/008—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant the refrigerant being carbon dioxide
    • 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
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/23—Separators
    • 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
    • F25B2600/00—Control issues
    • F25B2600/02—Compressor control
    • F25B2600/025—Compressor control by controlling speed
    • 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
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/21—Temperatures
    • F25B2700/2117—Temperatures of an evaporator
    • F25B2700/21175—Temperatures of an evaporator of the refrigerant at the outlet of the evaporator

Definitions

  • the invention relates to a method and a device for cooling a medium or a plurality of media.
  • the heterogeneous mixture for example, from carbon dioxide and a in consists of this temperature range in the liquid state carrier medium.
  • a plant is about from the DE 30 04 114 A1 known.
  • the refrigeration system described therein operates with a heat transfer medium consisting of a suspension of solid carbon dioxide particles in terpene as a liquid carrier medium. To produce the suspension, pressurized liquid carbon dioxide (carbonic anhydride) is converted to solid carbon dioxide particles and carbon dioxide gas by expansion.
  • the carbon dioxide particles are then fed to the carrier medium to form the suspension and cool it.
  • the temperature of the resulting carbon dioxide - and thus the suspension - between minus 56 ° C (at pressures just below the triple point) and minus 79 ° C (with relaxation to 1 bar final pressure) can be set.
  • the suspension is then pumped through a sublimator (heat exchanger) in which the particles of coal dioxide sublimate in heat exchange with the medium to be cooled, for example a gas stream, at least partially.
  • the cooled gas stream can then be used, for example, for freezing and storing food.
  • the remaining mixture, containing terpene, carbon dioxide vapor and optionally remaining in the terpene carbon dioxide particles, is separated; the thereby separated gaseous carbon dioxide is sucked off and can then be liquefied in a compressor and used in a renewed cooling cycle.
  • JP 2004 170007 A describes a cooling system for the range of -56 ° C or below, in which a cooling mixture of solid carbon dioxide particles and a brine liquid for cooling a medium in a heat exchanger is used.
  • a cooling mixture of solid carbon dioxide particles and a brine liquid for cooling a medium in a heat exchanger is used.
  • the carbon dioxide partially evaporates.
  • the gaseous carbon dioxide formed during the expansion or cooling is separated from the cooling mixture and liquefied. Subsequently, the liquid carbon dioxide is expanded to produce carbon dioxide particles and carbon dioxide gas and mixed upstream of the heat exchanger to the cooling mixture.
  • a similar item is from the EP 0 948 727 A1 known.
  • a mixture of solid carbon dioxide particles and a brine liquid is used as the cooling medium.
  • carbon dioxide is separated from the cooling mixture, liquefied and then relaxed. While used in the relaxation of carbon dioxide particles together with the cooling mixture for cooling the medium, the resulting during the expansion of carbon dioxide gas is separated before being fed to the heat exchanger from the cooling mixture.
  • the object of the present invention is therefore to provide a cooling method and a cooling device which is or is particularly suitable for the generation of temperatures in the range between -56 ° C and -79 ° C and at the or the risk of disturbance due coagulation of solid carbon dioxide particles is minimized.
  • This object is achieved by a method for cooling a medium, in which a liquid carrier medium is mixed with liquid carbon dioxide under a pressure at which the mixture is in the liquid state, then the mixture of carrier medium and liquid carbon dioxide is expanded while being cooled to a pressure in which at least a portion of the carbon dioxide evaporates, then the expanded mixture is fed to a separator in which vaporized carbon dioxide is separated from the carrier medium, the separated carrier medium is again pressurized and recirculated for mixing with liquid carbon dioxide, the mixture after the relaxation and / or the carrier medium from the separator passes through a heat exchanger in which it is brought into thermal contact with a medium to be cooled and the pressurized carrier medium before it is fed to the liquid carbon dioxide to a temperature above the melt point of carbon dioxide is brought at each pressure.
  • the support medium in the process according to the invention - as well as the carbon dioxide - two different pressure levels it is crucial that the mixture of carrier medium and carbon dioxide at and immediately after mixing has a pressure at which it is a mixture of Liquids and not for example as a suspension.
  • this pressure value should have a value above the triple point of carbon dioxide (5.18 bar), it may differ depending on the solubility of carbon dioxide and carrier medium into each other.
  • the mixture present at this high pressure, and thus the carrier medium contained therein, is relaxed to a value which is between 0 and a value at which part of the carbon dioxide present in the mixture evaporates.
  • this lower pressure value is a maximum of 5.18 bar. Due to the relaxation is a strong cooling, for example, to a temperature of up to minus 79 ° C with relaxation to 1 bar, with relaxation to a lower pressure value than 1 bar even lower, to, for example, minus 85 ° C. From its relaxation, the mixture is thus available as a refrigerant for the heat exchange with a medium or with several media, the heat exchange can take place downstream of the place of relaxation and / or downstream of the separation of the gaseous carbon dioxide. Likewise, the cold of the separated gaseous carbon dioxide can be used for heat exchange with a medium. The heat exchange can take place indirectly or directly, whereby in the latter case care should be taken that the medium to be cooled can be completely separated again from the mixture or the carbon dioxide after thorough mixing.
  • the mass flow of the liquid carbon dioxide and / or the mass flow of the pressurized carrier medium is / are regulated in dependence on a predetermined or measured cooling capacity or the temperature of a medium to be cooled.
  • the invention provides that the pressurized carrier medium is brought to a temperature above the melting point of carbon dioxide at the respective pressure before it is fed to the liquid carbon dioxide. This ensures that the liquid carbon dioxide does not freeze out during its mixing with the liquid carrier medium.
  • the temperature increase of the carrier medium can be done for example by a correspondingly controlled heater, and / or the carrier medium is brought by heat exchange with a medium to be cooled to the appropriate temperature.
  • a further expedient development of the invention provides that a carrier medium is used, in which the carbon dioxide is at least partially soluble.
  • the at least partial dissolution of the carbon dioxide in the carrier medium or the carrier medium in the carbon dioxide not only improves the fluidity of the suspension, but also determines the thermodynamic properties of the mixture, thus providing a further degree of freedom for adapting the method of the invention to the respective cooling task ,
  • a suitable carbon dioxide-releasing carrier medium by choosing a suitable carbon dioxide-releasing carrier medium, the temperature in the preparation of the mixture and the temperature can be influenced after its relaxation.
  • An advantageous development of the invention provides that the separated evaporated carbon dioxide is pressure-liquefied and recycled in the circuit for mixing with the carrier medium. In this case, therefore, both the carrier medium and the carbon dioxide is recycled, whereby a particularly efficient process management is made possible.
  • a further advantageous embodiment provides that the gaseous carbon dioxide separated off in the separator is likewise used in a heat exchanger for cooling a medium.
  • the medium to be cooled can be the same medium or the same media which is also cooled by the carrier medium or the mixture, or else by another medium.
  • the cold content of the gaseous carbon dioxide can also be used, in particular, to pre-cool the liquid carbon dioxide intended for mixing with the carrier medium.
  • a pressure-resistant mixing device such as a pressure vessel or a pressure-resistant fitting in which substantially the pressure of the supply lines is maintained, merging liquid carbon dioxide and carrier medium at a pressure at which the forming mixture as pure Liquid mixture is present.
  • a suitable carrier medium is selected, partial or complete dissolution of the carbon dioxide in the carrier medium can also take place.
  • the carrier medium cools down and is then available as a heat exchange medium for cooling another medium.
  • the expansion element can also be arranged directly on or in a heat exchanger, which serves to cool a medium; the expansion device can also be arranged directly at the mouth of the discharge for the mixture in the separator.
  • the gaseous carbon dioxide formed during the expansion at least largely separates from the carrier medium and is withdrawn via the outlet for the gaseous carbon dioxide, while the carrier medium accumulates in a lower region of the separator.
  • the separator acts in this way at the same time as a storage container for the carrier medium, which is withdrawn from there and fed after pressure increase again the liquid carbon dioxide for mixing with this.
  • a compressor and a cooler are provided to liquefy the carbon dioxide.
  • the diversion for the gaseous carbon dioxide is also fluidly connected to the opening into the mixing device inlet for liquid carbon dioxide. This makes it possible to completely or partially recycle the carbon dioxide.
  • Compressor and cooler can be provided in a common arrangement or be present as separate facilities.
  • the cooling required for re-liquefaction of the carbon dioxide can also be at least partially accomplished in that the carbon dioxide gas removed from the separator is used to pre-cool the carbon dioxide to be supplied to the mixing device and thereby cools down.
  • a heat exchanger located in the outlet for the vaporized carbon dioxide.
  • a medium can be cooled.
  • the cooling power contained in the gaseous carbon dioxide is also utilized profitably.
  • a yet further advantageous embodiment of the device according to the invention is characterized by a control device which controls the flow rate of the liquid carbon dioxide and / or the flow rate of the liquid carrier medium as a function of the cooling capacity of the heat exchanger and / or the temperature of a medium to be cooled.
  • a preferred use of the method and the device according to the invention consists in the cooling of one or more media in the temperature range between minus 56 ° C and minus 85 ° C, the temperature range between minus 79 ° C and minus 85 ° C and below, in particular by relaxation of the mixture to a pressure value of less than 1 bar. can be.
  • Fig. 1 shows an inventive device 1 for cooling a medium with the aid of a mixture of carbon dioxide and a carrier medium.
  • the carrier medium is a substance which is in the liquid state in the entire temperature and pressure range in which the cooling process described below takes place, ie, for example, in the temperature range between minus 56 ° C. and minus 79 ° C. and at pressures between 1 bar and a pressure above the triple point pressure of carbon dioxide (5.18 bar), z. B. 20 bar.
  • the carrier medium is ethanol.
  • the apparatus 1 comprises a mixing device 2, for example a mixing nozzle, at which liquid carbon dioxide, which is introduced via a carbon dioxide line 3, is mixed with the carrier medium, which is introduced under pressure via a feed line 4.
  • the mixing device 2 opens into a discharge 6, in which after a mixing section 7 an expansion valve 8 is arranged. Downstream to the expansion valve 8, the outlet 6 passes through a heat exchanger 9, in which the mixture guided in the outlet 6 enters into indirect heat exchange with a medium to be cooled, which is introduced in a liquid or gaseous medium flow (indicated by arrows).
  • the outlet 6 opens into a separator 10 a.
  • the separator 10 is essentially a vessel equipped with thermally insulated walls, in whose geodesically lower section a liquid phase 12 consisting predominantly of carrier medium is present and in the upper area of which a gas phase 11 consisting predominantly of gaseous carbon dioxide is present.
  • the liquid phase 12 is fluidly connected to a discharge 14, in which a device 15 is arranged to increase the pressure, which is driven in the embodiment with a motor 16. Downstream to the device 15, the outlet 14 passes through a second heat exchanger 17, in which the guided through the discharge 14 carrier medium is brought in the embodiment shown here in heat exchange with the same medium as the guided through the outlet 6 mixture in the heat exchanger 9.
  • the discharge 14th finally leads into the supply line 4 or goes into this.
  • the separator 10 further comprises a gas discharge 19, which is fluidly connected to the gas phase in the separator 10.
  • the gas discharge 19 passes through a heat exchanger 20 in which the gaseous carbon dioxide guided through the gas discharge enters into indirect heat exchange with the carbon dioxide introduced through the carbon dioxide line 3.
  • a mixture of liquid carbon dioxide and carrier medium is generated in the mixing device 2, which intimately mixes in the subsequent mixing section 7 as a mixture of liquids.
  • the mixture has in the mixing section 7, for example, a pressure of 10 to 20 bar and a temperature of minus 56 ° C.
  • the mixture is expanded under strong cooling and fed to the heat exchanger 9, wherein the carbon dioxide partially passes into gaseous form.
  • the heat exchanger 9 a heat exchange with the medium to be cooled takes place, wherein the guided through the outlet 6, relaxed mixture heat is supplied.
  • the mixture then passes into the separator 10, in which a separation takes place into gaseous carbon dioxide and carrier medium, carbon dioxide possibly being dissolved in the carrier medium or being present as a suspension.
  • the carrier medium has a temperature of, for example, minus 78 ° C. and a pressure of, for example, 1 bar.
  • the carrier medium is then brought by means of the device 15 to the outlet pressure, ie the pressure of the carrier medium at the mixing device 2 (for example 10 to 20 bar) and returned to the mixing device 2.
  • the carrier medium passes through the heat exchanger 17, in which it is heated by heat exchange with the medium to be cooled and preferably brought to a temperature above the solidification temperature of liquid carbon dioxide at the mixing device at the mixing of both liquids Pressure is.
  • the carrier medium is thus recycled, wherein it passes through two pressure stages in succession. Due to the mixing of carrier medium and carbon dioxide taking place at the mixing device 2 or in the mixing section 7 as two substances present in liquid form at a pressure preferably above the triple point of carbon dioxide, a particularly thorough mixing takes place, whereby a suspension forming during the expansion becomes a very has high homogeneity. The risk of clogging of the lines by coagulatingniceisteilchen is therefore low.
  • the gaseous carbon dioxide separated from the carrier medium in the separator 10 is in the gas phase 11 at the same temperature and pressure as the carrier medium in the liquid phase 12 (for example, minus 78 ° C and 1 bar).
  • the gaseous carbon dioxide is discharged via the gas outlet 19 and supplied, for example, to another utilization or released into the atmosphere.
  • the coldness of the gaseous carbon dioxide is used in the heat exchanger 20 to pre-cool the liquid carbon dioxide in the carbon dioxide line 3, but - not shown here - can alternatively or additionally be used to cool another medium.
  • a regulation of the carrier medium flow serves in the embodiment according to Fig. 1 a regulation of the carrier medium flow.
  • the temperature of the mixture downstream of the heat exchanger 9 is measured by a sensor 21 and used as a control variable for the control of the power of the motor 16.
  • the cooling capacity is regulated in this way via the flow rate of the carrier medium.
  • Fig. 2 shown device 1 'differs from the device 1 Fig. 1 only by the type of regulation, which is why the same or identically acting components in both devices are indicated by the same reference numerals.
  • the regulation of the cooling capacity of the heat exchangers 9, 17 takes place via a variation of the mass flow of the supplied liquid carbon dioxide.
  • the power of the motor 16 and thus the flow rate of the carrier medium remains constant during an operating phase of the device 1 '.
  • the sensor 21 is operatively connected to a quantity control valve 22 in the carbon dioxide line 3, which regulates the mass flow of the supplied carbon dioxide in dependence on the values measured at the sensor 21, wherein, of course, care must be taken that no such strong pressure reduction takes place at the volume control valve 22 that already 3 dry ice particles are formed immediately behind the flow control valve 22 in the supply line.
  • the gas discharge line 19 is flow-connected to the carbon dioxide feed line 3 via a compressor and, if appropriate, a cooling device, thus allowing a circulation of the carbon dioxide.
  • a cooling device such as a fan or, if appropriate, a cooling device, thus allowing a circulation of the carbon dioxide.
  • the heat exchanger 9 is omitted, the expansion nozzle 8 can also be arranged directly at the junction of the outlet 6 in the separator.
  • the two heat exchangers 9, 17 in a common housing or in different housings.
  • the heat exchangers 9, 17 can be used for cooling different media.
  • the device according to the invention and the method according to the invention are particularly suitable for cooling tasks in the temperature range between minus 56 ° C. and minus 79 ° C. and below, in particular for applications in the field of the food processing industry, pharmacy or the chemical industry; the invention is of course not limited thereto.

Claims (12)

  1. Procédé de refroidissement d'un fluide, dans lequel on mélange un fluide porteur liquide avec du dioxyde de carbone liquide sous une pression, à laquelle le mélange se trouve à l'état liquide, on détend ensuite le mélange de fluide porteur et de dioxyde de carbone liquide avec refroidissement jusqu'à une pression à laquelle au moins une partie du dioxyde de carbone se vaporise, on envoie ensuite le mélange détendu à un séparateur (10), dans lequel on sépare le dioxyde de carbone vaporisé du fluide porteur, on met de nouveau le fluide porteur sous pression et on le renvoie dans le circuit pour le mélange avec du dioxyde de carbone liquide, dans lequel le mélange après la détente et/ou le fluide porteur provenant du séparateur (10) traverse un échangeur de chaleur (9, 17), dans lequel il est mis en contact thermique avec un fluide à refroidir, caractérisé en ce que l'on porte le fluide porteur mis sous pression, avant son ajout au dioxyde de carbone liquide, à une température supérieure au point de fusion du dioxyde de carbone à la pression respective.
  2. Procédé selon la revendication 1, caractérisé en ce que l'on règle le flux massique du dioxyde de carbone liquide et/ou le flux massique du fluide porteur mis sous pression en fonction d'une puissance de refroidissement prédéterminée ou mesurée.
  3. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que l'on utilise un fluide porteur, dans lequel le dioxyde de carbone est au moins partiellement soluble.
  4. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que l'on utilise de l'éthanol comme fluide porteur.
  5. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que l'on liquéfie sous pression le dioxyde de carbone vaporisé séparé et on le renvoie dans le circuit pour le mélange avec le fluide porteur.
  6. Procédé selon l'une quelconque des revendications précédentes, caractérisé en ce que l'on utilise le dioxyde de carbone vaporisé séparé dans un échangeur de chaleur (20) pour le refroidissement d'un fluide.
  7. Dispositif de refroidissement d'un fluide,
    - avec un dispositif de mélange (2), dans lequel débouchent une conduite d'arrivée (3) pour du dioxyde de carbone liquide et une conduite d'arrivée (4) pour un fluide porteur se trouvant sous pression et qui s'ouvre dans une conduite d'évacuation (6) pour un mélange de dioxyde de carbone liquide et de fluide porteur,
    - avec un séparateur (10) destiné à séparer du dioxyde de carbone vaporisé lors de la détente d'un fluide porteur liquide, dans lequel débouche la conduite d'évacuation (6) pour le mélange et qui est équipé d'une conduite d'évacuation (14) pour le fluide porteur liquide et d'une conduite d'évacuation (19) pour le dioxyde de carbone vaporisé, dans lequel la conduite d'évacuation (14) pour le fluide porteur liquide est équipée d'un dispositif (15) pour l'augmentation de pression et qui est raccordé fluidiquement au dispositif de mélange (2) avec la conduite d'arrivée (4) pour le fluide porteur, caractérisé par
    - un organe de détente (8) disposé dans la conduite d'évacuation (6) pour le mélange, destiné à la détente du mélange, en aval du dispositif de mélange (2),
    - au moins un échangeur de chaleur (17) équipé d'une conduite d'arrivée et d'une conduite de départ pour un fluide à refroidir et/ou un dispositif de chauffage, qui est/sont disposé(s) dans la conduite d'évacuation (14) pour le fluide porteur liquide, en aval du séparateur (10).
  8. Dispositif selon la revendication 7, caractérisé par au moins un échangeur de chaleur (9) équipé d'une conduite d'arrivée et d'une conduite de départ pour un fluide à refroidir, qui est disposé dans la conduite d'évacuation (6) pour le mélange, en aval de l'organe de détente (8).
  9. Dispositif selon la revendication 7 ou 8, caractérisé en ce qu'il est prévu un compresseur ainsi qu'un refroidisseur dans la conduite d'évacuation (19) pour le dioxyde de carbone vaporisé et la conduite d'évacuation (19) est raccordée fluidiquement à la conduite d'arrivée (3) pour du dioxyde de carbone liquide débouchant dans le dispositif de mélange.
  10. Dispositif selon l'une quelconque des revendications 7 à 9, caractérisé en ce qu'il est prévu dans la conduite d'évacuation (19) pour le dioxyde de carbone vaporisé un échangeur de chaleur (20) destiné au refroidissement d'un fluide.
  11. Dispositif selon l'une quelconque des revendications 7 à 10, caractérisé par un dispositif de réglage (21, 22) destiné au réglage du flux massique du dioxyde de carbone liquide et/ou du flux massique du fluide porteur liquide en fonction de la puissance de refroidissement du/des échangeur(s) de chaleur (9, 17) et/ou de la température d'un fluide à refroidir.
  12. Utilisation d'un procédé selon l'une quelconque des revendications 1 à 6 et d'un dispositif selon l'une quelconque des revendications 7 à 11 pour le refroidissement d'un ou de plusieurs fluide(s) dans la plage de température comprise entre moins 85°C et moins 56°C.
EP12168675.2A 2012-05-21 2012-05-21 Procédé et dispositif destinés au refroidissement Active EP2667116B1 (fr)

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DE102015111183B4 (de) * 2015-07-10 2023-05-04 Technische Universität Dresden Kreislaufverfahren zur Kältebereitstellung mit Kohlendioxid als Kältemittel und Kälteanlage zur Durchführung des Verfahrens
EP4095459A1 (fr) * 2018-03-30 2022-11-30 IHI Corporation Système de refroidissement
DE102019127488A1 (de) * 2019-10-11 2021-04-15 Technische Universität Dresden Fluidkreislauf und Verfahren zum Betreiben des Fluidkreislaufs
US20230241651A1 (en) 2020-06-22 2023-08-03 Mycon Gmbh Method for cooling and/or separating adhesively bonded components and/or removing adhesive residues from surfaces and jet apparatus herefor
DE102020118437B4 (de) 2020-07-13 2022-02-10 Institut für Luft- und Kältetechnik gemeinnützige Gesellschaft mbH Verwendung einer Wärmeträgerflüssigkeit, Kälteanlage und Verfahren zu deren Betrieb

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ES479676A1 (es) 1979-04-18 1980-01-01 Liquid Carbonic De Espana S A Un metodo de obtencion de bajas temperaturas.
US5715702A (en) * 1996-11-15 1998-02-10 Frigoscandia Equipment Ab Refrigeration system
JP2003014333A (ja) * 2001-04-24 2003-01-15 Univ Nihon ヒートポンプ
JP4130121B2 (ja) * 2002-11-20 2008-08-06 八洋エンジニアリング株式会社 アンモニアと二酸化炭素を組み合わせた二元冷凍システム

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