EP3322947A1 - Procédé de refroidissement d'un flux de traitement - Google Patents

Procédé de refroidissement d'un flux de traitement

Info

Publication number
EP3322947A1
EP3322947A1 EP16738675.4A EP16738675A EP3322947A1 EP 3322947 A1 EP3322947 A1 EP 3322947A1 EP 16738675 A EP16738675 A EP 16738675A EP 3322947 A1 EP3322947 A1 EP 3322947A1
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
cooled
flow
stream
partial
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.)
Granted
Application number
EP16738675.4A
Other languages
German (de)
English (en)
Other versions
EP3322947B1 (fr
Inventor
Lutz Decker
Andres Kündig
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.)
Linde GmbH
Original Assignee
Linde GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Linde GmbH filed Critical Linde GmbH
Publication of EP3322947A1 publication Critical patent/EP3322947A1/fr
Application granted granted Critical
Publication of EP3322947B1 publication Critical patent/EP3322947B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • F25J1/0002—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the fluid to be liquefied
    • F25J1/0005—Light or noble gases
    • F25J1/0007—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
    • F25J1/0002—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the fluid to be liquefied
    • F25J1/0005—Light or noble gases
    • F25J1/001—Hydrogen
    • 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
    • F25J1/003—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production
    • F25J1/0047—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production using an "external" refrigerant stream in a closed vapor compression cycle
    • F25J1/0052—Processes or apparatus for liquefying or solidifying gases or gaseous mixtures characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production using an "external" refrigerant stream in a closed vapor compression cycle by vaporising a liquid refrigerant stream
    • 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
    • F25J1/007—Primary atmospheric gases, mixtures thereof
    • F25J1/0072—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
    • 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
    • F25J1/0221—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 using the cold stored in an external cryogenic component in an open refrigeration 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
    • 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
    • F25J1/0244—Operation; Control and regulation; Instrumentation
    • F25J1/0245—Different modes, i.e. 'runs', of operation; Process control
    • F25J1/0247—Different modes, i.e. 'runs', of operation; Process control start-up of the process
    • 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
    • F25J1/0244—Operation; Control and regulation; Instrumentation
    • F25J1/0254—Operation; Control and regulation; Instrumentation controlling particular process parameter, e.g. pressure, temperature
    • 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
    • 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
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D3/00—Devices using other cold materials; Devices using cold-storage bodies
    • F25D3/10—Devices using other cold materials; Devices using cold-storage bodies using liquefied gases, e.g. liquid air
    • 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
    • F25J2210/06—Splitting of the feed stream, e.g. for treating or cooling in different ways
    • 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
    • F25J2215/00—Processes characterised by the type or other details of the product stream
    • F25J2215/02—Mixing or blending of fluids to yield a certain product
    • 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
    • F25J2215/00—Processes characterised by the type or other details of the product stream
    • F25J2215/30—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
    • F25J2215/00—Processes characterised by the type or other details of the product stream
    • F25J2215/32—Neon
    • 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
    • F25J2245/00—Processes or apparatus involving steps for recycling of process streams
    • F25J2245/02—Recycle of a stream in general, e.g. a by-pass stream
    • 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
    • F25J2270/12—External refrigeration with liquid vaporising loop

Definitions

  • the invention relates to a method for cooling a process stream against an auxiliary stream, wherein the heat exchange between the process and the auxiliary stream in a first heat exchanger and a second downstream
  • the cooling of the process stream takes place against the auxiliary flow in two heat exchangers arranged in series.
  • liquefied nitrogen is separated into a liquid fraction and a gas fraction after its cooling-yielding expansion, as will be explained with reference to FIG. While the liquid fraction is passed through both heat exchangers in countercurrent to the process stream to be cooled, being initially passed through the second, colder heat exchanger, the gas fraction is only passed through the first or warmer of the two heat exchangers in countercurrent to the process stream to be cooled.
  • Particle accelerators, fusion research reactors, etc. have comparatively large masses of superconducting magnets and the associated installations. These magnets must be from ambient temperature (about 300 K) to one
  • countercurrent plate heat exchangers are preferably used for this purpose.
  • these heat exchanger types are sensitive to excessive temperature gradients between the individual channels and may be due to excessive thermal
  • Cooling phase during which the process stream to be cooled is cooled from ambient temperature to a temperature of approx. 80 K.
  • Liquefaction cycles remains relatively low for the long time of the cooled by the magnet to be cooled or experiment low or medium pressure current warm and is usually about a warmer at about ambient temperature for
  • Recirculation compressor returned.
  • the cooling of the high-pressure stream takes place in this cooling phase exclusively in the manner described above by the liquefied nitrogen.
  • the heat of vaporization of the liquefied nitrogen is about the same as the enthalpy difference of the nitrogen by saturated steam
  • Object of the present invention is to provide a generic method for cooling a process stream against an auxiliary current, in which the disadvantages described above are avoided.
  • a generic method for cooling a process stream against an auxiliary stream is proposed, which is characterized in that
  • the flow rates of the partial flows can be regulated by means of a respective valve, c) only a first partial flow in the first and the second heat exchanger is cooled against the auxiliary flow, and
  • the process stream to be cooled is inventively divided into two or more,
  • the flow rates of these partial flows can be regulated by means of one valve. Only the first and largest partial flow is cooled in the first and the second heat exchanger against the auxiliary flow. This is followed by cooling to a temperature of about 1 K above the temperature of the auxiliary flow. Subsequently, the thus-cooled partial process flow of the second partial flow is admixed and the process stream thus formed again the second Heat exchanger supplied and cooled in this against the auxiliary flow. If the process stream is divided into three or more partial streams, the process stream thus formed is cooled again in the second heat exchanger against the auxiliary stream after each further admixing of a partial stream. According to the invention
  • the temperatures of the process streams to be cooled at the inlet of the second heat exchanger do not differ by more than 10 K, preferably by not more than 5 K, in particular by not more than 2 K from each other. Temporary deviations up to 10 K, preferably up to 5 K, in particular up to 2 K are thus tolerable.
  • at least one of the flow rates of the two or more partial flows regulating valves is fully open. This adjusts the number of actuators (n + 1 valves) to the number of controlled variables (n temperature differences). At the same time, the pressure loss in
  • Method more than 100 K it can be reduced to less than 50 K by a two or more admixture or division into three or more streams.
  • the temperature difference is below the maximum permissible for plate heat exchangers temperature difference, depending on the manufacturer and geometry of the
  • Heat exchanger between 50 and 100 K is.
  • the maximum permissible temperature difference of the heat exchangers used is at least 70 K, it is basically sufficient if the process stream to be cooled is divided into only two partial streams. A second or further admixing of partial streams is not absolutely necessary in this case.
  • Temperature difference can be further reduced by more than two admixtures. Due to the procedure according to the invention, in the case of a helium refrigeration system, the entire helium high-pressure stream available in the refrigeration cycle can be cooled from liquified nitrogen from the beginning of the cooling phase without exceeding the maximum permissible temperature difference between the individual channels in the plate heat exchangers. The effort required for implementing the method according to the invention for additional equipment and additional logic is comparatively low. The inventive method also ensures full operational safety at all times. Further advantageous embodiments of the method according to the invention for
  • Cooling of a process stream against an auxiliary stream are characterized in that the flow rates of the partial streams are controlled such that the
  • the process stream to be cooled is a hydrogen, helium or neon-rich gas
  • - the auxiliary flow is a nitrogen-rich liquid and / or a nitrogen-rich gas.
  • hydrophilicity gas helium-rich gas
  • neon-rich gas nitrogen-rich liquid
  • nitrogen-rich gas is at least 90 vol .-%, preferably at least 95 vol .-%, in particular at least 99 vol .-%.
  • the inventive method for cooling a process stream against an auxiliary flow and further advantageous embodiments thereof are explained in more detail with reference to the embodiments shown in the figure 1. Shown are two embodiments of the method according to the invention for cooling a process stream against an auxiliary stream, as can be realized, for example, in cryogenic helium and neon refrigerators, hydrogen and helium liquefiers, etc. In the following, the process stream to be cooled is helium, while the auxiliary stream is a nitrogen-rich stream.
  • the cooled helium process stream 1 is divided according to a first embodiment shown in the figure 1 into two partial streams 2 and 2a.
  • the valves a and b are the quantity control of the two partial streams.
  • the first and larger partial stream 2 is cooled in the heat exchangers E1 and E2 to a temperature of about 1 K above the temperature of the auxiliary stream or liquefied nitrogen 9.
  • a cold-expanded, nitrogen-rich stream 8 is separated in the separator D into a liquid fraction 9 and a gas fraction 10. Only the liquid fraction 9 is passed in countercurrent to the above-described, to be cooled in the heat exchanger E2 helium partial stream 2 'through the heat exchanger E2, mixed with the gas fraction 10 and the combined nitrogen-rich auxiliary stream 11 then in
  • the helium partial stream 3 cooled in the heat exchangers E1 and E2 is now mixed with the second helium substream 2a.
  • the helium process stream 4 thus formed is cooled in the heat exchanger E2; the cooled helium process stream 5 is then fed to the load to be cooled and / or to at least one expansion device.
  • the mass flows of the helium substreams 2, 2a and 2b are determined by means of the control valves a, b and c to regulate such that the temperatures of the cooling in the second heat exchanger
  • Process streams 2 ', 4 and 6 differ by not more than 10 K, preferably by not more than 5 K, in particular by not more than 2 K from each other. If control or regulating valves are provided within a refrigeration or liquefaction plant and are only required during certain operating conditions, for example in continuous operation, they may possibly assume the function (s) of one of the afore-described control valves a, b and c. By means of this embodiment, the additional effort required valves or valves can be reduced.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Separation By Low-Temperature Treatments (AREA)

Abstract

L'invention concerne un procédé de refroidissement d'un flux de traitement vis-à-vis d'un flux auxiliaire, l'échange de chaleur entre le flux de traitement et le flux auxiliaire s'effectuant dans un premier échangeur de chaleur et dans un deuxième échangeur de chaleur placé en aval de celui-ci. Selon l'invention, a) le flux de traitement (1) est divisé en deux flux partiels (2, 2a, 2b) ou plus, b) les débits massiques des flux partiels (2, 2a, 2b) peuvent être régulés au moyen d'une soupape (a, b, c) respective, c) seulement un premier flux partiel (2) est refroidi vis-à-vis du flux auxiliaire (9, 11) dans le premier et le deuxième échangeur de chaleur (E1, E2) et d) le ou les autres flux partiels (2a, 2b) sont mélangés au premier flux partiel (3) refroidi et le flux de traitement ainsi formé est à nouveau refroidi dans le deuxième échangeur de chaleur (E2), et dans le cas d'une division en plus de deux flux partiels (2a, 2b), le flux de traitement étant, après chaque mélange d'un flux partiel, à nouveau refroidi dans le deuxième échangeur de chaleur (E2), e) les débits massiques des flux partiels (2, 2a, 2b) étant régulés de telle sorte que les températures des flux de traitement à refroidir dans le deuxième échangeur de chaleur (E2) ne diffèrent pas de plus de 10 K les unes des autres à l'entrée du deuxième échangeur de chaleur (E2) et f) au moins l'une des soupapes (a, b, c) régulant les débits massiques des flux partiels étant complètement ouverte.
EP16738675.4A 2015-07-16 2016-07-14 Procédé de refroidissement d'un flux de traitement Active EP3322947B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015009255.3A DE102015009255A1 (de) 2015-07-16 2015-07-16 Verfahren zum Abkühlen eines Prozessstromes
PCT/EP2016/001217 WO2017008910A1 (fr) 2015-07-16 2016-07-14 Procédé de refroidissement d'un flux de traitement

Publications (2)

Publication Number Publication Date
EP3322947A1 true EP3322947A1 (fr) 2018-05-23
EP3322947B1 EP3322947B1 (fr) 2020-02-12

Family

ID=56411577

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16738675.4A Active EP3322947B1 (fr) 2015-07-16 2016-07-14 Procédé de refroidissement d'un flux de traitement

Country Status (6)

Country Link
US (1) US10677523B2 (fr)
EP (1) EP3322947B1 (fr)
JP (1) JP2018523082A (fr)
CN (1) CN108027198B (fr)
DE (1) DE102015009255A1 (fr)
WO (1) WO2017008910A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2575980A (en) * 2018-07-30 2020-02-05 Linde Ag High temperature superconductor refrigeration system
FR3110222B3 (fr) * 2020-05-15 2022-04-22 Air Liquide Installation et procédé de réfrigération d’un fluide à température cryogénique

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL287922A (fr) * 1962-02-12
US3377811A (en) * 1965-12-28 1968-04-16 Air Prod & Chem Liquefaction process employing expanded feed as refrigerant
US3415077A (en) * 1967-01-31 1968-12-10 500 Inc Method and apparatus for continuously supplying refrigeration below 4.2deg k.
CN1004228B (zh) * 1985-04-01 1989-05-17 气体产品与化学公司 两种混合致冷剂液化天然气的方法和设备
WO1997013109A1 (fr) * 1995-10-05 1997-04-10 Bhp Petroleum Pty. Ltd. Procede de liquefaction
US6041620A (en) * 1998-12-30 2000-03-28 Praxair Technology, Inc. Cryogenic industrial gas liquefaction with hybrid refrigeration generation
US6532750B1 (en) * 2000-07-12 2003-03-18 Phpk Technologies Inc. Method and system for densifying cryogenic propellants
DE102008007923A1 (de) * 2008-02-07 2009-08-13 Linde Aktiengesellschaft Verfahren zum Kühlen eines Speicherbehälters
US20100281915A1 (en) * 2009-05-05 2010-11-11 Air Products And Chemicals, Inc. Pre-Cooled Liquefaction Process
RU2499208C1 (ru) * 2012-04-06 2013-11-20 Общество с ограниченной ответственностью "Научно-исследовательский институт природных газов и газовых технологий - Газпром ВНИИГАЗ" Способ частичного сжижения природного газа
JP5890748B2 (ja) * 2012-05-22 2016-03-22 川崎重工業株式会社 液体水素製造装置
WO2014103436A1 (fr) * 2012-12-27 2014-07-03 三菱電機株式会社 Dispositif de cycle de refroidissement

Also Published As

Publication number Publication date
US10677523B2 (en) 2020-06-09
CN108027198B (zh) 2020-05-22
CN108027198A (zh) 2018-05-11
JP2018523082A (ja) 2018-08-16
WO2017008910A1 (fr) 2017-01-19
EP3322947B1 (fr) 2020-02-12
US20180202712A1 (en) 2018-07-19
DE102015009255A1 (de) 2017-01-19

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