EP3511649A1 - Procédé et dispositif de refroidissement d'un consommateur et système comprenant un dispositif correspondant et consommateur - Google Patents

Procédé et dispositif de refroidissement d'un consommateur et système comprenant un dispositif correspondant et consommateur Download PDF

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Publication number
EP3511649A1
EP3511649A1 EP18020651.8A EP18020651A EP3511649A1 EP 3511649 A1 EP3511649 A1 EP 3511649A1 EP 18020651 A EP18020651 A EP 18020651A EP 3511649 A1 EP3511649 A1 EP 3511649A1
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EP
European Patent Office
Prior art keywords
cooling
nitrogen
stream
liquid nitrogen
reservoir
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Granted
Application number
EP18020651.8A
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German (de)
English (en)
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EP3511649B1 (fr
Inventor
Lutz Decker
Alexander Alekseev
Wim van Dorth
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Linde Kryotechnik AG
Linde GmbH
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Linde GmbH
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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
    • 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
    • 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
    • F25B19/00—Machines, plants or systems, using evaporation of a refrigerant but without recovery of the vapour
    • F25B19/005—Machines, plants or systems, using evaporation of a refrigerant but without recovery of the vapour the refrigerant being a liquefied gas
    • 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
    • F25B23/00—Machines, plants or systems, with a single mode of operation not covered by groups F25B1/00 - F25B21/00, e.g. using selective radiation effect
    • F25B23/006—Machines, plants or systems, with a single mode of operation not covered by groups F25B1/00 - F25B21/00, e.g. using selective radiation effect boiling cooling systems

Definitions

  • the invention relates to a method and a device for cooling a consumer and a system with a corresponding device and a consumer according to the preambles of the independent claims.
  • High and medium voltage cables and busbars can be designed as high-temperature superconductors (HTSC). Such cables and busbars may carry direct current or alternating current and are also referred to as "HTSC current feeders". They require cooling to a temperature of less than 100 K, preferably less than 80 K.
  • HTSC high-temperature superconductors
  • DE 10 2012 016 292 A1 discloses a method and apparatus for cooling objects, in which or a cooling medium supplied from a first reservoir via a first cooling medium line to an object to be cooled, brought into thermal contact with this and subsequently discharged via a second cooling medium line.
  • the cooling medium is supplied after the thermal contact with the object via the second cooling medium line to a second reservoir and stored there until a predetermined filling level is reached in the first or in the second reservoir.
  • the cooling medium from the second reservoir is supplied to the object for cooling and brought into thermal contact with this and then returned to the first reservoir, after which it is again available for cooling the object.
  • the same flow paths in both directions of flow should at least partially be used.
  • the method and the device should be particularly suitable for cooling superconducting cables.
  • the present invention proposes a method and a device for cooling a consumer, in particular a power supply, preferably a HTSC power supply, as well as a system with a corresponding device and a consumer with the features of the independent claims.
  • a power supply preferably a HTSC power supply
  • Preferred embodiments are subject of the dependent claims and the following description.
  • the liquid nitrogen in the systems mentioned above is conveyed by means of a pump (so-called circulation pump) and subcooled in a subcooler to the required cooling temperature.
  • the liquid nitrogen is passed to the consumer where it is warmed up and returned to the circulation pump.
  • the liquid nitrogen carried in this way as a circulation stream is also called "circulating nitrogen”.
  • the term "subcooler” is used because the liquid nitrogen is a supercooled liquid after cooling.
  • the heat exchanger in a subcooler in its simplest form, is a coil placed in a nitrogen bath ("bad nitrogen").
  • the warmer circulating nitrogen is guided inside the coil and cooled by the external, colder bath nitrogen.
  • the bath nitrogen evaporates continuously.
  • Alternative to coil heat exchangers other types of heat exchangers can be used.
  • the pressure in the cooling circuit downstream of the pump is selected so that the circulating nitrogen always remains liquid and no vapor bubbles occur. From a thermodynamic point of view, this means that the pressure in the circuit should always be higher than in the bath of the subcooler, and that the circulating nitrogen must not be warmed above the boiling point.
  • the lowest temperature of the circulation nitrogen is achieved at the outlet from the subcooler. This temperature is essentially determined by the temperature of the bath nitrogen used in the subcooler (and the heat transfer in the subcooler). In order to effect supercooling, the nitrogen bath must therefore be brought to a corresponding temperature.
  • the pressure of the bad nitrogen can be reduced by a pressure reduction in which evaporating nitrogen is pumped out continuously using a mechanical (for example, oil-lubricated) vacuum pump.
  • the lower limit of the achievable by the pressure reduction temperature is about 63 K, which corresponds to a vapor pressure of about 0.13 bar.
  • the nitrogen would freeze.
  • a corresponding pressure reduction typically leads to nitrogen and cold losses, because of As a rule, pumped nitrogen and its cold can not be recovered or can only be recovered with great difficulty.
  • the losses of bad nitrogen resulting from evaporation in the subcooler are typically compensated by replenishment of fresh liquid nitrogen from a suitable reservoir, for example a cryogenic tank.
  • a suitable reservoir for example a cryogenic tank.
  • the reservoir is filled, for example, using an air separation plant or a nitrogen liquefier.
  • the temperature of the Badstickstoff can also be reduced by one or more closed cooling devices (also referred to as cryocooler) are integrated into the subcooler.
  • the one or more chillers cool and liquefy / re-condense the bad nitrogen evaporating during cooling down to the required cooling temperature; a vacuum pump is not needed in this case. In this way, nitrogen and cold losses can be reduced.
  • cryocooler typically Brayton or Stirling cooler are used.
  • the term "closed" cooling device is here understood to mean a device in which gaseous nitrogen is not discharged from the system due to the process but is liquefied and returned to the system.
  • the cooling path thus extends between the first end and a second end.
  • the liquid nitrogen is in such systems in the form of a circulatory stream repeated (ie continuously in circulation) subjected to a first cooling, the cooling section supplied at the first end, transported from the first end to the second end along the cooling path, the cooling section at the second end taken, subjected to a second cooling, the cooling section fed back to the second end, transported from the second end to the first end along the cooling path and the cooling section at the first end again taken.
  • the first cooling is performed using a first supercooled nitrogen bath in a subcooler and the second cooling using a second supercooled nitrogen bath in a second subcooler.
  • the first nitrogen bath can be at least partially undercooled by means of a closed cooling device and the second nitrogen bath at least partially by reducing the pressure to a subatmospheric pressure level.
  • the pressure reduction takes place in that gaseous nitrogen is pumped out of a head space above a nitrogen bath from a subcooler by means of a mechanical vacuum pump, in particular, and is discharged, in particular, to the surrounding atmosphere.
  • an equalization of the nitrogen losses by the pumping down for pressure reduction by feeding nitrogen from a reservoir is made, which can be filled, for example using an air separation plant with liquid nitrogen.
  • the present invention now proposes to overcome this disadvantage, the reservoir and the closed cooling device at the first end of the cooling section, the vacuum pump required for reducing pressure, however, to arrange on the other end of the cooling section.
  • a corresponding vacuum pump is a comparatively small unit that is much easier to accommodate at the second end, especially when the space at the second end is limited.
  • a corresponding vacuum pump can also be connected via a line to the provided at the second end of the cooling section subcooler and does not have to be arranged and the immediate vicinity of the same. In this way, by repositioning a further favorable adaptation to the available space can be made.
  • the nitrogen losses which occur in the second nitrogen bath due to the pressure reduction due to the pumping off are likewise compensated from a reservoir which, however, is now arranged at the opposite end of the cooling section.
  • the compensated for the losses from the reservoir nitrogen is introduced at the end of the cooling section, where the reservoir is arranged in the circulation stream and at the other end of the cooling section, where the pressure reduction takes place, discharged from the circulation stream and to fill the used there arranged Stickstoffbads.
  • the circulation stream thus serves to transport this nitrogen.
  • the present invention is based on a method for cooling a consumer via a cooling path which extends between a first end and a second end.
  • liquid nitrogen is repeated in the form of a circulatory stream, ie subjected continuously in the circulation and in particular without intermediate storage in a container of a first cooling, the cooling line supplied at the first end, transported from the first end to the second end along the cooling path, the Cooling section taken at the second end, subjected to a second cooling, the cooling section at the second End supplied, transported from the second end to the first end along the cooling path and the cooling section taken at the first end.
  • the circulation stream is always guided in particular in the same direction and does not experience, such as in the DE 10 2012 016 292 A1
  • the first cooling is performed using a first supercooled nitrogen bath and the second cooling using a second supercooled nitrogen bath, wherein the first nitrogen bath is at least partially subcooled by means of a closed cooler and the second nitrogen bath is at least partially subcooled by reducing pressure to a subatmospheric pressure level , A quantity of nitrogen which evaporates from the second nitrogen bath due to the pressure reduction to the subatmospheric pressure level is thereby at least partly compensated from a reservoir in the process.
  • the liquid nitrogen is guided in the context of the inventive method in the form of the circulation stream in particular during transport from the first end to the second end along the cooling section through one or more first cooling passages and during transport from the second end to the first end along the cooling section by a or a plurality of second cooling passages fluidly separated from the one or more first cooling passages.
  • one or more other cooling passages are provided for the guidance from the first to the second end than for the guidance from the second end to the first end.
  • a "cooling passage” designates a fluid guide structure which is provided with heat exchange surfaces.
  • the circulation flow is and can not be performed in the same cooling passages in the context of the present invention, as in the DE 10 2012 016 292 A1 due to the local shuttle operation is the case.
  • the cooling section comprises a first feed opening, a first removal opening, a second feed opening and a second removal opening for the liquid nitrogen, wherein the first feed opening with the first removal opening in particular via the first mentioned (s).
  • Cooling passage (s) and the second feed opening with the second removal opening, in particular via the mentioned second (s) cooling passage (s) are connected.
  • the first feed opening and the second removal opening are located at the first end, the first removal opening and the second supply opening at the second end of the cooling section.
  • an "opening" designates a connection of any type, for example a flange or connecting piece.
  • the liquid nitrogen in the circulating stream is supplied via the first feed opening at the first end of the cooling section of this cooling section or the first cooling passages and removed via the first removal opening at the second end.
  • the liquid nitrogen if a corresponding circulation stream is formed, fed via the second feed opening at the second end of the cooling section of this cooling section or the second cooling passages and removed via the second removal opening at the first end.
  • a first pressure level of the liquid nitrogen supplied at the first end of the cooling section is always above a second pressure level of the liquid nitrogen withdrawn at the second end of the cooling section.
  • a third pressure level of the liquid nitrogen supplied at the second end of the cooling section is always at or below the second pressure level.
  • a fourth pressure level of the liquid nitrogen withdrawn at the first end of the cooling section is below the third pressure level.
  • the liquid nitrogen is advantageously not subjected to pressure-increasing measures at the second end of the cooling section. So here is, for example, in contrast to the several mentioned DE 10 2012 016 292 A1 , no pressure build-up device and no pump. A corresponding increase in pressure takes place in the context of the present invention, in particular only at the first end of the cooling section using a circulation pump. Furthermore, in the context of the present invention, the liquid nitrogen of the circulation stream, so there are no switching valves are provided.
  • liquid nitrogen is withdrawn from the reservoir and introduced into the circulation stream before the circulation stream is fed to the cooling section at the first end, and that liquid nitrogen is discharged from the circulation stream and at least partially fed to the second nitrogen bath, after the Circulating flow of the cooling section is taken at the second end.
  • the liquid nitrogen withdrawn from the reservoir and introduced into the circulation stream is advantageously introduced into the circulation stream using a mixing device.
  • a mixing device In this way, in particular when the introduced nitrogen and the already existing cycle nitrogen have different temperature levels, it is possible to avoid unequal distributions in the temperature and to set a homogeneous mixing temperature level.
  • the liquid nitrogen guided in the form of the circulation stream is advantageously passed through a circulation pump after its removal at the first end of the cooling section and before a renewed supply at the first end of the cooling section, at which a suitable pressure difference can also be set.
  • the guided in the form of the circulating stream liquid nitrogen of the circulation pump at a first pressure level of at least 2 bar (abs.) are supplied.
  • the first pressure level can be about 10 bar (abs.).
  • a corresponding pressure level results in particular from the pressure level downstream of the circulation pump, which may be above the first pressure level and, for example, at about 15 bar (abs.), And from the pressure losses across the cooling section.
  • the liquid nitrogen withdrawn from the reservoir and introduced into the circulation stream is removed from the reservoir in particular at a second pressure level above the first pressure level.
  • the injected nitrogen is in particular also, together with the circulation stream, fed to the circulation pump.
  • cooling can be used.
  • the guided in the form of the circulating current liquid nitrogen can be subjected to the first cooling, before and / or after it is passed through the circulation pump. Details are also explained in more detail with reference to the drawings, wherein in the FIGS. 4 to 6 shown embodiments of the present invention provide a cooling before and after the circulation pump.
  • the liquid nitrogen in the reservoir is typically in non-supercooled state, in the circulating stream, however, is undercooled nitrogen, it comes when the infiltrated from the reservoir nitrogen is not subjected to further cooling before it is introduced into the recycle stream, to a significant Temperature increase, which must be compensated by a corresponding cooling capacity in the associated subcooler. This can prove disadvantageous. Therefore, according to a particularly preferred embodiment of the present invention, it is provided that the withdrawn from the reservoir and introduced into the circulating stream liquid nitrogen is cooled using a third supercooled nitrogen bath before it is introduced into the circulation stream.
  • Such a cooling of the introduced nitrogen can thus be carried out in particular by the use of a further (third) supercooled nitrogen bath.
  • the third supercooled nitrogen bath is provided by removing further liquid nitrogen from the reservoir at the first pressure level and depressurizing it to a third pressure level with partial evaporation.
  • the third pressure level may be, for example, at atmospheric pressure or slightly, ie in particular at most 0.5 bar, above the atmospheric pressure. In this way, corresponding additional cold can be generated and there is a partial evaporation of the expanded nitrogen.
  • a non-vaporized portion of the further liquid nitrogen from the reservoir at least partially fed to the third nitrogen bath during the expansion to the third pressure level and a portion of the further liquid nitrogen evaporated from the reservoir at least partially as coolant in the vaporized during the relaxation to the third pressure level closed cooling device can be used.
  • a cooling device with a Brayton cooler is used in particular as the closed cooling device, a further energy saving results.
  • the present invention also extends to a device for cooling a consumer via a cooling path extending between a first end and a second end.
  • the apparatus comprises means adapted to subject liquid nitrogen in the form of a circulatory stream, ie continuously in circulation and in particular without intermediate storage in a container, repeatedly to a first cooling, to the cooling section at the first end, from the first end to transport the second end along the cooling path, remove the cooling section at the second end, subject it to a second cooling, supply it to the cooling section at the second end, transport it from the second end to the first end along the cooling section and the cooling section at the second end first end.
  • the means are in particular arranged to always lead the same in the same direction, so that this not, as in the DE 10 2012 016 292 A1 , undergoes a reversal of direction. These means include in particular corresponding lines and a circulation pump.
  • the apparatus comprises means adapted to perform the first cooling using a first supercooled nitrogen bath and the second cooling using a second supercooled nitrogen bath.
  • the device comprises a corresponding first and a corresponding second nitrogen bath. It further includes a closed cooling device adapted to cool the first nitrogen bath and means adapted to at least partially subcool the second nitrogen bath by reducing the pressure to a subatmospheric pressure level.
  • the latter include in particular a corresponding vacuum pump.
  • Means are furthermore provided which are set up to at least partially compensate a quantity of nitrogen evaporating from the second nitrogen bath due to the pressure reduction to the subatmospheric pressure level from a reservoir. A corresponding reservoir is also part of the proposed device.
  • the inventively provided device is characterized in particular by means which are adapted to remove from the reservoir liquid nitrogen and introduced into the circulation stream before the circulation stream of the cooling section is supplied at the first end, andmontschleusen liquid nitrogen from the circulation stream and at least partially supplied to the second nitrogen bath, after the recycle stream of the cooling section is removed at the second end.
  • These means may in particular include corresponding lines and the like.
  • a corresponding device or a configuration thereof is adapted to carry out a corresponding method or a variant thereof.
  • Liquid media are exemplified by black (filled) gaseous media with white (unfilled) flow arrows.
  • FIG. 1 a system according to a non-inventive embodiment is shown in a simplified schematic representation.
  • the system shown comprises a consumer 1 which, as mentioned, may in particular be a (HTSC) cable system.
  • the consumer 1 is cooled using liquid nitrogen, which is conducted in a circulation stream 2.
  • the liquid nitrogen of the cycle stream 2 is subjected to cooling in a heat exchanger 3 in the example shown, fed to a circulation pump 4, cooled in a further heat exchanger 5, and used again to cool the consumer 1.
  • a circulation pump 4 cooled in a further heat exchanger 5
  • the heat exchangers 3 and 5, if present, are each arranged in a subcooled nitrogen bath in a subcooler 6.
  • the nitrogen in the circulation stream 2 can be cooled in this way to a temperature level of, for example, about 67 K and used at this temperature level for cooling the consumer 1. It heats up during the cooling of the consumer 1 to a temperature level of, for example, about 73 K.
  • the supercooling of the nitrogen bath in the subcooler 6 is effected by a pressure reduction using a pump 7 which pumps off nitrogen vaporized from the nitrogen bath and thus reduces the pressure level in the subcooler 6.
  • the pumped nitrogen is discharged, for example, to the atmosphere (amb). Loss of nitrogen resulting from the pumping are compensated by liquid nitrogen from a reservoir 8 via a valve 9.
  • the reservoir 8 can be fed by means of an air separation plant can.
  • the reservoir 8 is provided here with a pressure build-up evaporator 10.
  • the pressure level of the nitrogen in the circulation stream 2 upstream of the circulation pump 4 and at the same time in the reservoir is typically above 2 bar (abs.), For example at about 10 bar (abs.).
  • the pressure level of the nitrogen in the circulation stream 2 downstream of Circulation pump 4 is located above this, for example, at about 15 bar (abs.).
  • the pressure level in the subcooler 6 is below the atmospheric pressure, in particular at 0.1 to 0.5 bar (abs.), For example, at about 0.2 bar (abs.).
  • FIG. 2 a system according to a further non-inventive embodiment is shown in a simplified schematic representation.
  • a closed cooling device 11 which in the system according to FIG. 2 is provided in addition to the pump 7.
  • the nitrogen from the subcooler 6 is additionally cooled using a suitable chiller, which may in particular comprise one or more Stirling coolers and / or one or more Brayton coolers operated using neon and / or helium.
  • the nitrogen enters in gaseous form in the cooling device 11 and is recycled liquid into the subcooler 6.
  • a pressure regulating device 21 is provided, which instead of in the system according to FIG. 1 provided connection with the reservoir 8 is set for pressure adjustment.
  • the pressure level in the reservoir 8 can be set to a value that is independent of the pressure level upstream of the circulation pump 4.
  • FIG. 3 a system according to a further non-inventive embodiment is shown in a simplified schematic representation.
  • the system according to FIG. 3 is particularly advantageous if a longer cooling distance to be overcome.
  • another subcooler 12 is arranged with a heat exchanger 13.
  • the subcooler 6 is provided with the pump 7, the further subcooler 12 is equipped with the cooling device 11. In this way, excessive heating of the nitrogen in the circulation stream 2 over the (long) cooling section can be prevented.
  • FIG. 4 For example, a system according to an embodiment of the invention is shown in simplified schematic form and designated 100 as a whole.
  • the cooling device 11 and the reservoir 8 at the same end of the consumer 1 and a corresponding cooling section and are assigned to the subcooler 6 arranged there.
  • the arranged at the other end subcooler 12, however, is equipped with the pump 7. In this way, the much space-consuming devices, namely the cooling device 11 and the reservoir 8, can be concentrated here.
  • the pump 7, however, can be arranged under stress of little space at the other end, where there may be a lack of space or other facilities are arranged.
  • nitrogen from the reservoir 8 is introduced here via the valve 9 at one end into the circulation stream 2 and not into a corresponding subcooler.
  • This additionally introduced nitrogen is mixed in by a mixing device 14 in the circulation stream 2.
  • At the other end of this nitrogen is discharged from the circulation stream 2 again and fed via a valve 15 and a corresponding line to the subcooler 12 provided there.
  • FIG. 5 For example, a system according to another embodiment of the invention is shown in simplified schematic form and indicated generally at 200.
  • the possible problem is addressed that the nitrogen fed in via the valve 9 has a comparatively high temperature and thus results in the mixing by means of the mixing device 14 to a corresponding increase in temperature in the circulation stream 2.
  • a second or further subcooler 18 with a corresponding heat exchanger 16 is used here.
  • the nitrogen to be fed into the circulation stream 2 is thereby expanded after removal from the reservoir 8 by means of the valve 9 and passed through the heat exchanger 16.
  • a nitrogen bath in the further subcooler 18 is provided by further nitrogen withdrawn from the reservoir 8 and vented to atmospheric pressure or slightly above it by means of another valve 17.
  • the relaxed over the valve 17 nitrogen evaporates partially.
  • the evaporated part is discharged to the atmosphere (atm).
  • the liquid remaining fraction is in the supercooled state and can therefore be used as a cooling medium.
  • the pressure level in the further subcooler 18 is at atmospheric pressure or slightly, i. typically at most 0.5 bar, above.
  • the nitrogen to be fed into the circulation stream 2 is already present at a temperature level of typically less than 80 K, so that corresponding losses during mixing via the mixing device are avoided.
  • the required cooling capacity of the cooling device 11 can also be reduced to a corresponding extent in this way.
  • FIG. 3 is a simplified schematic diagram of a system according to another embodiment of the invention, indicated generally at 300.
  • system 200 is used here from the further subcooler 18 flowing gaseous nitrogen as a cooling medium in the cooling device 11, which may have a Brayton cooler here in particular.
  • a corresponding heat exchanger 19 is provided. In this way, energy losses can be further reduced.
  • FIG. 7 illustrates a cooling path that may be provided in a system according to the preceding figures. This is summarized here with 1000. As before, a consumer with 1 and a circulation stream with 2 are indicated. By a dashed line 1100 separate cooling passages are 1010 and 1020 illustrates.
  • the cooling passages 1010 and 1020 are for transporting the liquid nitrogen in the form of the cycle stream 2 from the first end to the second end along the cooling path on the one hand (“first cooling passage” 1010) and for transport from the second end to the first end along the cooling path on the other (“second cooling passage” 1020) provided and fluidly separated from each other in the previously explained sense.
  • the first end of the cooling section 1000 here bears the reference numeral 1001, the second end of the cooling section the reference numeral 1002.
  • a feed opening (for the circulation stream 2 at the first end 1001 in the cooling section 1000 and the first cooling passage 1010) is denoted by 1011 ("first feed port ").
  • a removal opening (for the circulation stream 2 at the second end 1002 from the cooling section 1000 or the first cooling passage 1010) is designated by 1012 ("first removal opening").
  • a feed opening for the circulation stream 2 at the second end 1002 into the cooling section 1000 and the second cooling passage 1020, respectively
  • 1021 (“second feed opening”
  • a removal opening (for the circulation stream 2 at the first end 1001 from the cooling section 1000 or the second cooling passage 1020) is designated 1022 (“second removal opening").

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
EP18020651.8A 2018-01-12 2018-12-21 Procédé et dispositif de refroidissement d'un consommateur et système comprenant un dispositif correspondant et consommateur Active EP3511649B1 (fr)

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EP3511649B1 EP3511649B1 (fr) 2022-01-26

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19755484A1 (de) 1997-12-13 1999-06-17 Univ Dresden Tech Verfahren zur Kälteerzeugung im Temperaturbereich von 50,1 bis 63 Kelvin und Vorrichtung zur Durchführung dieses Verfahrens
EP1355114A2 (fr) 2002-04-17 2003-10-22 Linde Aktiengesellschaft Système de réfrigération pour supraconducteurs à haute temperature
EP1643197A2 (fr) * 2004-09-29 2006-04-05 The Boc Group, Inc. Système cryogénique de secour
US20060150639A1 (en) * 2005-01-13 2006-07-13 Zia Jalal H Cable cooling system
DE102012016292A1 (de) 2012-08-16 2014-02-20 Messer Group Gmbh Verfahren und Vorrichtung zum Kühlen von Objekten
DE102013011212A1 (de) 2013-07-04 2015-01-08 Messer Group Gmbh Vorrichtung zum Kühlen eines Verbrauchers mit einer unterkühlten Flüssigkeit in einem Kühlkreislauf

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19755484A1 (de) 1997-12-13 1999-06-17 Univ Dresden Tech Verfahren zur Kälteerzeugung im Temperaturbereich von 50,1 bis 63 Kelvin und Vorrichtung zur Durchführung dieses Verfahrens
EP1355114A2 (fr) 2002-04-17 2003-10-22 Linde Aktiengesellschaft Système de réfrigération pour supraconducteurs à haute temperature
EP1643197A2 (fr) * 2004-09-29 2006-04-05 The Boc Group, Inc. Système cryogénique de secour
US20060150639A1 (en) * 2005-01-13 2006-07-13 Zia Jalal H Cable cooling system
DE102012016292A1 (de) 2012-08-16 2014-02-20 Messer Group Gmbh Verfahren und Vorrichtung zum Kühlen von Objekten
DE102013011212A1 (de) 2013-07-04 2015-01-08 Messer Group Gmbh Vorrichtung zum Kühlen eines Verbrauchers mit einer unterkühlten Flüssigkeit in einem Kühlkreislauf

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