EP2941602B1 - Dispositif de réfrigération et/ou de liquéfaction et procédé correspondant - Google Patents

Dispositif de réfrigération et/ou de liquéfaction et procédé correspondant Download PDF

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Publication number
EP2941602B1
EP2941602B1 EP13803118.2A EP13803118A EP2941602B1 EP 2941602 B1 EP2941602 B1 EP 2941602B1 EP 13803118 A EP13803118 A EP 13803118A EP 2941602 B1 EP2941602 B1 EP 2941602B1
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EP
European Patent Office
Prior art keywords
heat exchanger
working gas
cooling
working
exchanger
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Application number
EP13803118.2A
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German (de)
English (en)
French (fr)
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EP2941602A1 (fr
Inventor
Jean-Marc Bernhardt
Fabien Durand
Vincent Heloin
Pierre BARJHOUX
Gilles FLAVIEN
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.)
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
Original Assignee
LAir Liquide SA pour lEtude et lExploitation des Procedes Georges Claude
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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
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
    • F25J1/02—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process
    • F25J1/0243—Start-up or control of the process; Details of the apparatus used; Details of the refrigerant compression system used
    • F25J1/0257—Construction and layout of liquefaction equipments, e.g. valves, machines
    • F25J1/0275—Construction and layout of liquefaction equipments, e.g. valves, machines adapted for special use of the liquefaction unit, e.g. portable or transportable devices
    • F25J1/0276—Laboratory or other miniature devices
    • 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
    • F25B9/14—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the cycle used, e.g. Stirling cycle
    • 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
    • F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
    • F25B9/10—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point with several cooling stages
    • 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
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
    • F25J1/006—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the refrigerant fluid used
    • F25J1/0062—Light or noble gases, mixtures thereof
    • F25J1/0065—Helium
    • 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
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J1/00—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
    • F25J1/02—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process
    • F25J1/0243—Start-up or control of the process; Details of the apparatus used; Details of the refrigerant compression system used
    • F25J1/0257—Construction and layout of liquefaction equipments, e.g. valves, machines
    • F25J1/0262—Details of the cold heat exchange system
    • F25J1/0264—Arrangement of heat exchanger cores in parallel with different functions, e.g. different cooling streams
    • F25J1/0265—Arrangement of heat exchanger cores in parallel with different functions, e.g. different cooling streams comprising cores associated exclusively with the cooling of a refrigerant stream, e.g. for auto-refrigeration or economizer
    • F25J1/0268—Arrangement of heat exchanger cores in parallel with different functions, e.g. different cooling streams comprising cores associated exclusively with the cooling of a refrigerant stream, e.g. for auto-refrigeration or economizer using a dedicated refrigeration means
    • 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
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2210/00—Processes characterised by the type or other details of the feed stream
    • F25J2210/42—Nitrogen
    • 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
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2250/00—Details related to the use of reboiler-condensers
    • F25J2250/02—Bath type boiler-condenser using thermo-siphon effect, e.g. with natural or forced circulation or pool boiling, i.e. core-in-kettle heat exchanger
    • 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
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2270/00—Refrigeration techniques used
    • F25J2270/90—External refrigeration, e.g. conventional closed-loop mechanical refrigeration unit using Freon or NH3, unspecified external refrigeration
    • F25J2270/904—External refrigeration, e.g. conventional closed-loop mechanical refrigeration unit using Freon or NH3, unspecified external refrigeration by liquid or gaseous cryogen in an open loop
    • 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
    • F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
    • F25J2270/00—Refrigeration techniques used
    • F25J2270/90—External refrigeration, e.g. conventional closed-loop mechanical refrigeration unit using Freon or NH3, unspecified external refrigeration
    • F25J2270/912—Liquefaction cycle of a low-boiling (feed) gas in a cryocooler, i.e. in a closed-loop refrigerator

Definitions

  • the present invention relates to a refrigeration and / or liquefaction device and a corresponding method.
  • the invention particularly relates to helium refrigerators / liquefiers generating very low temperatures (for example 4.5K in the case of helium) in order to continuously cool users such as superconducting cables or devices of a device of plasma generation ("TOKAMAK").
  • refrigeration / liquefaction device is meant in particular refrigeration devices and / or liquefaction devices at very low temperatures (cryogenic temperatures) cooling and liquefying where appropriate a low molecular weight gas such as helium.
  • the refrigeration / liquefaction device is generally unsuitable for such cooling.
  • the device comprises an auxiliary pre-cooling system which provides frigories during this cold setting.
  • the pre-cooling system generally comprises a liquid nitrogen capacity (at constant temperature, eg 80K) which supplies working gas frigories via at least one heat exchanger.
  • FR 2 919 713 discloses a refrigeration device according to the preamble of claim 1.
  • fluid mixtures are required between 80K helium and warmer helium (at room temperature or at the return temperature of the user to be cooled).
  • Heat exchangers adapted for this normal operation include plate type aluminum exchangers with brazed fins. This type of exchanger can not typically accept temperature differences between fluids with a countercurrent of more than 50 K.
  • An object of the present invention is to overcome all or part of the disadvantages of the prior art noted above.
  • the device according to the invention is essentially characterized in that the third heat exchanger is connected both in series and in parallel. at the first and second heat exchangers, that is, the working gas leaving the first and / or the second heat exchanger is selectively admitted into the third heat exchanger, the working circuit comprising a heat pipe; recovery device provided with at least one valve and which connects the outlet of the third heat exchanger to the second heat exchanger, to selectively allow the transfer of frigories of the working gas leaving the third heat exchanger to the second heat exchanger.
  • the invention also relates to a method of cooling a user using a refrigerating and / or liquefying apparatus of a working gas according to any one of the above or the following features, wherein, user is cooled via the heat exchange system, the method comprising a user pre-cooling step having an initial temperature of between 120K and 400K in which the working gas leaving the compression station is cooled by heat exchange in the first heat exchanger and then in the second heat exchanger and then in the third heat exchanger, the cooled working gas leaving the third exchanger being admitted again at least partly in upstream in the second heat exchanger to give away frigories.
  • the invention may also relate to any alternative device or method comprising any combination of the above or below features.
  • the installation 100 may comprise, conventionally, a refrigeration / liquefaction device comprising a working circuit submitting helium to a work cycle to produce cold.
  • the working circuit of the refrigeration device 2 comprises a compression station 1 provided with at least one compressor 5 and preferably several compressors which provide a compression of the helium.
  • the helium enters a cold box 2 for the cooling of the helium.
  • the cold box 2 includes a plurality of heat exchangers which heat exchange with helium to cool the helium.
  • the cold box 2 comprises one or more turbines 7 to relax the compressed helium.
  • the cold box 2 operates according to a Brayton type thermodynamic cycle or any other appropriate cycle.
  • At least a portion of the helium is liquefied at the outlet of the cold box 2 and enters a heat exchange system 14 provided to ensure a selective heat exchange between the liquid helium and a user 10 to cool.
  • the user 10 comprises, for example, a magnetic field generator obtained using a superconducting magnet and / or one or more pumping units. by cryo-condensation or any other organ requiring cooling at a very low temperature.
  • the device further comprises, in a manner known per se, an additional pre-cooling system of the working gas at the outlet of the compression station 2.
  • the pre-cooling system comprises a capacity 3 of auxiliary cryogenic fluid such as liquid nitrogen.
  • the capacitor 3 is connected to the working circuit via at least one heat exchanger for selectively transferring frigories of the auxiliary fluid to the working gas.
  • the capacity 3 can be supplied with auxiliary fluid via a supply line 13 connected to a source of auxiliary fluid (not shown) and provided with a valve 23 (cf. figure 3 ).
  • the compression station 1 comprises two compressors 11, 12 in series defining for example three pressure levels for helium.
  • the compression station 2 may also include helium purification organs 8.
  • the helium is admitted into a cold box 2 in which this helium is cooled by heat exchange with several exchangers 5 and in which it is expanded in turbines 7.
  • the liquefied helium in the cold box 2 can be stored in a reserve 14 provided with an exchanger 144 for heat exchange with the user 10 to cool (for example via a circuit provided with a pump).
  • This heat exchange system 14 between the helium and the user 10 may comprise any other appropriate structure.
  • the low-pressure helium that has passed through the heat exchange system 14 is sent back to the compression station 1 via a return line 9 in order to restart a work cycle. During this return, the relatively cold helium transfers heat to the heat exchangers and in this way cools the relatively hot helium which is cooled and expanded in the opposite direction before reaching the user 10.
  • the working circuit may comprise a return line 19 returning to the station 1 for compressing the helium of the cold box 2 that has not passed through the heat exchange system 14.
  • the device comprises a pre-cooling system comprising a capacity 13 of auxiliary cryogenic fluid such as liquid nitrogen at a temperature of 80K for example.
  • auxiliary cryogenic fluid such as liquid nitrogen at a temperature of 80K for example.
  • the cold box 2 comprises a first helium cooling stage which receives the helium as soon as it leaves the compression station 1.
  • This first cooling stage comprises a first heat exchanger and a second heat exchanger connected both in series and in parallel to the working circuit at the output of the compression station 1. That is, the working gas leaving the compression station 2 can be selectively admitted into the first and / or second heat exchanger.
  • the first heat exchanger is for example of the heat exchange type between different streams of helium at different respective temperatures.
  • the first heat exchanger may comprise a first fed passage 6 in high-pressure hot working gas coming directly from the compression station 1, a second countercurrent passage of the first passage and supplied by the gas return pipe 9 working said cold and low pressure and a third passage against the current of the first passage and fed medium pressure working gas via a return line 19.
  • the second heat exchanger is of the heat exchange type between the working gas and the auxiliary gas and comprises, for example, a first feed gas passage 16 of working gas from the first heat exchanger and / or directly from the can. 2, a second passage, countercurrent to the first passage and provided for vaporized auxiliary gas, and a third passage supplied with working gas via the pipe 125 recovery.
  • the first cooling stage also comprises a third heat exchanger 25.
  • This third heat exchanger is connected at the same time in series and in parallel with the first 5 and the second 15 heat exchanger. That is, the working gas exiting the first and / or second heat exchanger is selectively admitted into the third heat exchanger. As illustrated for example in more detail at figure 3 this is achieved by connecting a fluid inlet of the third heat exchanger to two fluid outlets belonging respectively to the first and second exchangers 15.
  • the working circuit comprises a recovery line 125 which selectively connects the outlet of the third heat exchanger 25 to the second heat exchanger, for selectively permitting the transfer of frigories from the working gas exiting the third heat exchanger 25 to the second heat exchanger 15.
  • the working circuit comprises a limited portion subdivided into two parallel lines, one of the two lines constitutes the recovery line 125.
  • This circuit portion may comprise a set of valve (s) 225, 44 to ensure a selective distribution of helium between the two parallel lines (cf. figure 3 ).
  • recovery line 125 after its transit through the third heat exchanger 25, is connected downstream to the working circuit of the cold box 2 in order to continue the cooling of the working gas.
  • the third heat exchanger is selectively supplied with auxiliary fluid (nitrogen, for example).
  • auxiliary fluid nitrogen, for example.
  • the third heat exchanger 25 is a heat exchanger remote from the capacitor 3 and selectively supplied with auxiliary fluid via a circuit comprising at least one supply line 13. This makes it possible to selectively transfer frigories of the auxiliary fluid to the helium within the third heat exchanger.
  • the device preferably comprises a pipe 225 for evacuating the vaporized auxiliary gas connecting an upper end of the capacitor 3 to a remote recovery system via a passage in the second heat exchanger. This allows selectively transferring frigories of the vaporized auxiliary gaseous fluid to the working gas passing through the second heat exchanger.
  • the figure 3 illustrates an alternative embodiment of the first cooling stage of the device.
  • the embodiment of the figure 3 is different from that of figure 2 only in that the third heat exchanger 25 is this time immersed in the auxiliary fluid capacity.
  • the Figures 4 to 6 are three distinct configurations that can be used in a succession of an example of possible operation of the device.
  • a first phase of cooling a user illustrated in the figure 4 the helium from the compression station 1 is sequentially cooled in series in the first 5, second 15 and third 25 heat exchangers (valves 116 and 126 closed, valve 136 open).
  • the cooled helium returns to pass through the second heat exchanger via the recovery line 125 (valves 225 and 44 open).
  • the auxiliary fluid (nitrogen) at a temperature of about 80 K is allowed to circulate in the second heat exchanger (it comes out for example at a temperature of about 270 K).
  • a second cooling phase of the user having a temperature of 200K can comprise the same configuration as that of the figure 4 .
  • the auxiliary fluid (nitrogen) at a temperature of about 80 K is allowed to circulate in the second heat exchanger and comes out, for example, at a temperature of about 190 K.
  • a third cooling phase of the user having a temperature of 140K can comprise the same configuration as that of the figure 4 .
  • auxiliary fluid nitrogen
  • the second heat exchanger the auxiliary fluid (nitrogen) at a temperature of about 80 K is allowed to circulate in the second heat exchanger and it emerges, for example, at a temperature of about 140 K.
  • a fourth phase of cooling the user with a temperature of 120K may have a configuration that differs from that of the figure 4 only in that the helium leaving the third heat exchanger is not recirculated in the second heat exchanger (valve 225 closed).
  • the auxiliary fluid (nitrogen) at a temperature of about 80 K is allowed to circulate in the second heat exchanger and comes out, for example, at a temperature of about 120 K.
  • the device can adopt a fifth phase of operation illustrated in FIG. figure 6 .
  • This fifth phase of operation differs from the configuration of the figure 5 only in that the helium from the compression station 1 is distributed between the first 5 and second 15 heat exchangers (valves 116 and 126 closed while the valve 136 is open).
  • the auxiliary fluid (nitrogen) at a temperature of about 80K is allowed to circulate in the second heat exchanger and it comes out for example at a temperature of about 300K.
  • the architectures described above thus make it possible to cool a massive component of a relatively hot temperature (for example 300K at a relatively low temperature (for example 80K) with the same number of equipment as necessary for normal (nominal) operation. refrigerator / liquefier.
  • the three heat exchangers 5, 15 and 25 may advantageously be heat exchangers of the same type, for example aluminum plates and fins. This makes it possible to use compact heat exchangers 5, 15, 25 and efficiently for all the operating modes of the device (cooling or normal operation).
  • This architecture makes it possible in particular to reduce the size of the first heat exchanger with respect to known systems.
  • this first heat exchanger only receives helium (no nitrogen).
  • the flow of helium at high pressure can be reduced in part by distributing a portion of this helium in the second heat exchanger.
  • the relatively hot and cold helium flow rates are not completely balanced, that is to say that the cold flow rates induce an increase in the pinch, that is to say an increase in the minimum temperature difference.
  • the cold fluids and the hot fluids along the exchanger and an increase in the "LMTD" i.e., an increase in the logarithmic mean of the temperature differences of the heat exchanger.
  • the frigories brought by the cold flows become more important than the calories to be extracted from the hot flow. The cold flow rates therefore undergo less warming, hence the increase in the LMTD of the heat exchanger.
  • This arrangement makes it possible to reduce the temperature differences at the second heat exchanger due to the helium transferred to the second changer 15 via the recovery line 125.
  • This helium from the recovery line 125 is reheated by yielding frigories to the second heat exchanger and is then mixed with the relatively cold helium flow which flows downstream into the cold box.
  • the device has many advantages over the prior art.
  • the device makes it possible in particular to size the first 5, second 15 and third 25 exchangers for the normal operation of the refrigerator and can thus be constituted by aluminum exchangers with plates and fins.
  • the device also allows the helium temperature to be regulated in a simple and effective manner depending on the operating mode.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Clinical Laboratory Science (AREA)
  • Separation By Low-Temperature Treatments (AREA)
EP13803118.2A 2013-01-03 2013-11-08 Dispositif de réfrigération et/ou de liquéfaction et procédé correspondant Active EP2941602B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1350018A FR3000541B1 (fr) 2013-01-03 2013-01-03 Dispositif de refrigeration et/ou de liquefaction et procede correspondant
PCT/FR2013/052686 WO2014106697A1 (fr) 2013-01-03 2013-11-08 Dispositif de réfrigération et/ou de liquéfaction et procédé correspondant

Publications (2)

Publication Number Publication Date
EP2941602A1 EP2941602A1 (fr) 2015-11-11
EP2941602B1 true EP2941602B1 (fr) 2017-04-19

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EP13803118.2A Active EP2941602B1 (fr) 2013-01-03 2013-11-08 Dispositif de réfrigération et/ou de liquéfaction et procédé correspondant

Country Status (7)

Country Link
US (1) US10520225B2 (ko)
EP (1) EP2941602B1 (ko)
JP (1) JP6284950B2 (ko)
KR (1) KR102124677B1 (ko)
CN (1) CN104884878B (ko)
FR (1) FR3000541B1 (ko)
WO (1) WO2014106697A1 (ko)

Families Citing this family (8)

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Publication number Priority date Publication date Assignee Title
EP3162871A1 (en) 2015-10-27 2017-05-03 Linde Aktiengesellschaft Hydrogen-neon mixture refrigeration cycle for large-scale hydrogen cooling and liquefaction
CN106949655B (zh) * 2017-03-16 2019-03-05 中国科学院理化技术研究所 一种氦低温系统
FR3066585B1 (fr) * 2017-05-22 2020-01-24 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Dispositif et procede d'epuration d'un melange de gaz
FR3067947B1 (fr) 2017-06-21 2019-07-19 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Dispositif et procede de purification cryogenique et engin comprenant un dispositif de purification
FR3099820B1 (fr) * 2019-08-05 2022-11-04 Air Liquide Dispositif et installation de réfrigération
CN110608581B (zh) * 2019-08-22 2021-05-14 北京中科富海低温科技有限公司 一种内纯化器和氦液化器
CN112304141A (zh) * 2020-09-22 2021-02-02 蓝箭航天空间科技股份有限公司 液氧/液甲烷与液氮的换热器系统及换热方法
FR3129201B1 (fr) * 2021-11-16 2024-01-19 Air Liquide Système de pompage cryogénique et intégration innovante pour la cryogénie Sub Kelvin inférieure à 1,5K

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JP2016504558A (ja) 2016-02-12
WO2014106697A1 (fr) 2014-07-10
FR3000541B1 (fr) 2015-01-23
CN104884878A (zh) 2015-09-02
EP2941602A1 (fr) 2015-11-11
FR3000541A1 (fr) 2014-07-04
CN104884878B (zh) 2017-08-11
US10520225B2 (en) 2019-12-31
US20150345834A1 (en) 2015-12-03
KR20150103020A (ko) 2015-09-09
KR102124677B1 (ko) 2020-06-23
JP6284950B2 (ja) 2018-02-28

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