EP1239254B1 - Echangeur de chaleur - Google Patents

Echangeur de chaleur Download PDF

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Publication number
EP1239254B1
EP1239254B1 EP02004875A EP02004875A EP1239254B1 EP 1239254 B1 EP1239254 B1 EP 1239254B1 EP 02004875 A EP02004875 A EP 02004875A EP 02004875 A EP02004875 A EP 02004875A EP 1239254 B1 EP1239254 B1 EP 1239254B1
Authority
EP
European Patent Office
Prior art keywords
heat exchanger
block
exchanger block
exchanger according
blocks
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.)
Expired - Lifetime
Application number
EP02004875A
Other languages
German (de)
English (en)
Other versions
EP1239254A3 (fr
EP1239254A2 (fr
Inventor
Wolfgang Bader
Stefan Wilhelm
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 EP1239254A2 publication Critical patent/EP1239254A2/fr
Publication of EP1239254A3 publication Critical patent/EP1239254A3/fr
Application granted granted Critical
Publication of EP1239254B1 publication Critical patent/EP1239254B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for 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
    • F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
    • F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
    • F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
    • F25J3/04763—Start-up or control of the process; Details of the apparatus used
    • F25J3/04866—Construction and layout of air fractionation equipments, e.g. valves, machines
    • F25J3/04945—Details of internal structure; insulation and housing of the cold box
    • 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
    • F25J5/00—Arrangements of cold exchangers or cold accumulators in separation or liquefaction plants
    • F25J5/002—Arrangements of cold exchangers or cold accumulators in separation or liquefaction plants for continuously recuperating cold, i.e. in a so-called recuperative 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
    • F25J2290/00—Other details not covered by groups F25J2200/00 - F25J2280/00
    • F25J2290/42—Modularity, pre-fabrication of modules, assembling and erection, horizontal layout, i.e. plot plan, and vertical arrangement of parts of the cryogenic unit, e.g. of the cold box

Definitions

  • the invention relates to a heat exchanger with at least one heat exchanger block and an insulating container surrounding the heat exchanger, wherein fastening means are provided to attach the heat exchanger block suspended in the insulation container and its use in a cryogenic air separation plant.
  • the feed air to be separated must be cooled to the process temperature. This is usually done by indirect heat exchange of the feed air with the product streams obtained in the air separation plant.
  • the main heat exchanger is realized by several parallel heat exchanger blocks. The individual heat exchanger blocks are usually designed as a plate heat exchanger.
  • the thermal insulation of the main heat exchanger is carried out by introducing the heat exchanger in a thermally insulated insulation container, a so-called cold box.
  • Various methods are known for fastening the heat exchanger or the individual heat exchanger blocks in the insulation container.
  • US 4,377,025 shows a heat exchanger block that is movably suspended at a plurality of suspension points so that it can expand when heated.
  • the position of the heat exchanger block should remain substantially unchanged with temperature changes.
  • Object of the present invention is therefore to develop a heat exchanger which is mounted in the isolation tank, that the piping is as simple as possible and the loops for the shrinkage compensation avoided or at least kept small.
  • the heat exchanger block is fixed so that thermally induced changes in the pipes connected to the heat exchanger block are compensated by a change in position of the block.
  • the heat exchanger block is moved along with the shrinking pipes.
  • the heat exchanger block is mounted in the insulation container so that its lower end is movable in at least two spatial directions.
  • the heat exchanger block is freely movable suspended above its center of gravity.
  • the heat exchanger block at the top of the warm feed air and fed at the bottom of the cold product gases. Accordingly, during start-up or load changes, only the pipelines connected to the lower, cold end of the heat exchanger block undergo noticeable changes in length. because the temperature changes at the warm end are low. By suspending the heat exchanger block above its center of gravity, it can be relatively easily deflected at its lower end. On the pipes connected to the lower end, which cause the deflection of the heat exchanger block by their shrinkage, therefore, only small forces act. An unacceptably high voltage stress on the pipelines is avoided.
  • the invention has proven particularly useful in a heat exchanger comprising at least two, preferably at least four heat exchanger blocks.
  • the invention is particularly suitable for heat exchangers comprising eight or ten heat exchanger blocks in two rows of four or five blocks each.
  • complex piping is necessary to distribute the feed air to be cooled and the countercurrent product streams to the individual heat exchanger blocks.
  • the attachment of the heat exchanger blocks according to the invention simplifies the piping, reduces the insulation container and thus leads to a significant cost reduction. This applies in particular when the individual heat exchanger blocks have inlet and / or outlet lines which lead into a common manifold.
  • fastening means are provided, which have joints, so that the heat exchanger block can be deflected about the hinge axes.
  • Such a gimbal can be realized with relatively little technical effort and has proven to be particularly favorable in practice.
  • Figures 1 and 2 show the upper end of a heat exchanger block 1, which is used in the main heat exchanger of a cryogenic air separation plant.
  • the entire main heat exchanger consists of several such parallel heat exchanger blocks.
  • the heat exchanger block 1 has a width of up to 240 cm.
  • a manifold distributor 2 On the heat exchanger block 1, a manifold distributor 2, a so-called header, attached, lead away from the one or more pipes, not shown, away.
  • a substantially triangular steel plate 4 or a steel beam, which is designed according to the static requirements, is arranged perpendicular to the aluminum plates 3 above the header 2 and connected at two corners via bolts 5 hingedly connected to the two aluminum plates 3.
  • the steel plate 4 is movable relative to the heat exchanger block 1 around the axis 6 formed by the extension of the two bolts 5.
  • the steel plate 4 is suspended on a double-T-beam 8, which is fixed in the cold box, not shown, and carries the heat exchanger block 1.
  • the joint 7 allows movement in the plane of the steel plate 4 or about an axis 9 perpendicular to the steel plate 4th
  • the heat exchanger block 1 is thus gimbaled around two mutually perpendicular axes 6, 9 rotatably suspended.
  • the arrangement of the two aluminum plates 3 and the steel plate 4 is chosen so that the suspension point 10 is located vertically above the center of gravity of the heat exchanger block 1.
  • the joint 7 is arranged so that the axis 9 is adapted to the project-specific requirements, that is, to the pipe stresses that occur or can be calculated in a specific embodiment of the heat exchanger.
  • one or more pipes for the supply and discharge of the fluid streams to be brought together in heat exchange are attached.
  • these pipes undergo thermally induced changes in length of about 3 to 4 mm per meter of pipe length. Due to the inventive suspension of the heat exchanger block 1 above its center of gravity, this is already deflected by relatively small forces acting on its lower end. The deflection of the heat exchanger block 1 compensates for the thermally induced pipe length changes, so that can be dispensed loops for shrinkage compensation in the pipes.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Details Of Heat-Exchange And Heat-Transfer (AREA)
  • Separation By Low-Temperature Treatments (AREA)
  • Packages (AREA)

Claims (9)

  1. Echangeur de chaleur comprenant au moins un bloc d'échangeur de chaleur et un récipient d'isolation entourant l'échangeur de chaleur, des moyens de fixation étant prévus pour fixer le bloc d'échangeur de chaleur à un point de suspension de manière suspendue dans le récipient d'isolation, le bloc d'échangeur de chaleur (1) étant disposé de manière mobile dans le récipient d'isolation, caractérisé en ce que le point de suspension se trouve verticalement au-dessus du centre de gravité du bloc d'échangeur de chaleur (1).
  2. Echangeur de chaleur selon la revendication 1, caractérisé en ce que l'extrémité inférieure du bloc d'échangeur de chaleur (1) est déplaçable dans au moins deux directions spatiales.
  3. Echangeur de chaleur selon la revendication 1 ou 2, caractérisé en ce que le bloc d'échangeur de chaleur (1) est suspendu de manière librement mobile au-dessus de son centre de gravité.
  4. Echangeur de chaleur selon l'une quelconque des revendications 1 à 3, caractérisé en ce que l'échangeur de chaleur comprend au moins deux, de préférence au moins trois blocs d'échangeur de chaleur (1).
  5. Echangeur de chaleur selon la revendication 4, caractérisé en ce que les blocs d'échangeur de chaleur (1) possèdent des conduites d'amenée ou de sortie qui conduisent à une conduite de collecte commune.
  6. Echangeur de chaleur selon l'une quelconque des revendications 1 à 5, caractérisé en ce que les moyens de fixation présentent des articulations (5, 7).
  7. Echangeur de chaleur selon la revendication 6, caractérisé en ce que les moyens de fixation présentent deux axes de rotation (6, 9) perpendiculaires l'un à l'autre.
  8. Echangeur de chaleur selon l'une quelconque des revendications 1 à 7, caractérisé en ce que les moyens de fixation présentent un premier élément (3) connecté fixement au bloc d'échangeur de chaleur (1) et un deuxième élément (4) connecté de manière articulée au premier élément (3), le deuxième élément (4) étant fixé de manière articulée dans le récipient d'isolation.
  9. Utilisation d'un échangeur de chaleur selon l'une quelconque des revendications 1 à 8 dans une installation de séparation d'air cryogénique, notamment en tant qu'échangeur de chaleur principal d'une installation de séparation d'air cryogénique.
EP02004875A 2001-03-06 2002-03-04 Echangeur de chaleur Expired - Lifetime EP1239254B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10110704A DE10110704A1 (de) 2001-03-06 2001-03-06 Wärmetauscher
DE10110704 2001-03-06

Publications (3)

Publication Number Publication Date
EP1239254A2 EP1239254A2 (fr) 2002-09-11
EP1239254A3 EP1239254A3 (fr) 2002-12-04
EP1239254B1 true EP1239254B1 (fr) 2006-05-10

Family

ID=7676452

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02004875A Expired - Lifetime EP1239254B1 (fr) 2001-03-06 2002-03-04 Echangeur de chaleur

Country Status (11)

Country Link
US (1) US7325594B2 (fr)
EP (1) EP1239254B1 (fr)
JP (1) JP3978353B2 (fr)
KR (1) KR100876039B1 (fr)
CN (1) CN1260540C (fr)
AT (1) ATE325998T1 (fr)
BR (1) BR0200654B1 (fr)
CA (1) CA2375794C (fr)
DE (2) DE10110704A1 (fr)
MX (1) MXPA02002000A (fr)
TW (1) TW514717B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2503269A1 (fr) 2011-03-25 2012-09-26 Linde Aktiengesellschaft Dispositif de décomposition à basse température de l'air

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10331209A1 (de) * 2003-07-10 2005-02-03 Alto Deutschland Gmbh Wärmetauscher mit Keramikboden
GB2422004A (en) 2005-01-07 2006-07-12 Hiflux Ltd Plate heat exchanger
JP5256105B2 (ja) * 2009-04-16 2013-08-07 三菱電機株式会社 冷凍空調機用熱交換器およびその熱交換器の搬送用工具
FR2995672B1 (fr) * 2012-09-19 2014-10-03 Air Liquide Echangeur de chaleur et procede d'installation d'une unite de separation de gaz comprenant de tels echangeurs de chaleur
US11828189B1 (en) * 2021-12-20 2023-11-28 General Electric Company System and method for restraining heat exchanger with cable in tension

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US529288A (en) * 1894-11-13 Liquids by means of steam
DE460711C (de) * 1926-03-14 1928-06-04 Richard Pabst Dipl Ing Vorrichtung zur Erwaermung von Badewasser
US1901014A (en) * 1931-06-12 1933-03-14 Creamery Package Mfg Co Milk cooling and storing apparatus
US2200355A (en) * 1932-07-28 1940-05-14 Jensen Creamery Machinery Comp Heat exchange device
US2057298A (en) * 1935-02-04 1936-10-13 Cherry Burrell Corp Heat exchange device
US2041483A (en) * 1935-04-23 1936-05-19 Prestage Edwin Milk pasteurizing and cooling unit
US3000193A (en) * 1958-02-21 1961-09-19 Hupp Corp Air conditioning evaporators
GB1037056A (en) * 1962-04-09 1966-07-27 Babcock & Wilcox Ltd Improvements in or relating to supporting means
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FR2405451A1 (fr) * 1977-10-07 1979-05-04 Hamon Echangeur de chaleur, notamment pour refrigerant atmospherique
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JPS5929993A (ja) * 1982-08-10 1984-02-17 Asahi Glass Co Ltd 横型多管式熱交換器
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US4852640A (en) * 1986-03-28 1989-08-01 Exothermics-Eclipse Inc. Recuperative heat exchanger
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2503269A1 (fr) 2011-03-25 2012-09-26 Linde Aktiengesellschaft Dispositif de décomposition à basse température de l'air
DE102011015233A1 (de) 2011-03-25 2012-09-27 Linde Ag Vorrichtung zur Tieftemperaturzerlegung von Luft

Also Published As

Publication number Publication date
JP2002303497A (ja) 2002-10-18
EP1239254A3 (fr) 2002-12-04
CN1260540C (zh) 2006-06-21
US20020124998A1 (en) 2002-09-12
BR0200654A (pt) 2002-12-10
DE50206714D1 (de) 2006-06-14
CA2375794A1 (fr) 2002-09-06
KR20020071732A (ko) 2002-09-13
DE10110704A1 (de) 2002-09-12
KR100876039B1 (ko) 2008-12-26
CN1384328A (zh) 2002-12-11
TW514717B (en) 2002-12-21
BR0200654B1 (pt) 2010-11-16
JP3978353B2 (ja) 2007-09-19
ATE325998T1 (de) 2006-06-15
EP1239254A2 (fr) 2002-09-11
MXPA02002000A (es) 2004-04-21
US7325594B2 (en) 2008-02-05
CA2375794C (fr) 2012-07-03

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