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EP1239254A2 - Heat exchanger - Google Patents

Heat exchanger Download PDF

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Publication number
EP1239254A2
EP1239254A2 EP02004875A EP02004875A EP1239254A2 EP 1239254 A2 EP1239254 A2 EP 1239254A2 EP 02004875 A EP02004875 A EP 02004875A EP 02004875 A EP02004875 A EP 02004875A EP 1239254 A2 EP1239254 A2 EP 1239254A2
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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.)
Granted
Application number
EP02004875A
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German (de)
French (fr)
Other versions
EP1239254A3 (en
EP1239254B1 (en
Inventor
Wolfgang Bader
Stefan Wilhelm
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Linde GmbH
Original Assignee
Linde GmbH
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Filing date
Publication date
Application filed by Linde GmbH filed Critical Linde GmbH
Publication of EP1239254A2 publication Critical patent/EP1239254A2/en
Publication of EP1239254A3 publication Critical patent/EP1239254A3/en
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Publication of EP1239254B1 publication Critical patent/EP1239254B1/en
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 insulation tank surrounding the heat exchanger, fastening means are provided to hang the heat exchanger block in to attach the insulation container and its use in one Cryogenic air separation plant.
  • the feed air to be separated When air is decomposed at low temperatures, the feed air to be separated must be on the Process temperature are cooled. This is usually done through indirect Heat exchange of the feed air with that obtained in the air separation plant Product streams.
  • the Main heat exchanger In systems in which large amounts of air are processed, the Main heat exchanger through several heat exchanger blocks connected in parallel realized. The individual heat exchanger blocks are usually as Plate heat exchanger trained.
  • the main heat exchanger is thermally insulated by inserting the Heat exchanger in a thermally insulated insulation container, a so-called Cold box.
  • a thermally insulated insulation container a so-called Cold box.
  • Various methods are known for heat exchanger blocks in the insulation container.
  • the heat exchanger blocks on stands or supports on the Place the floor or on the foundation of the insulation housing.
  • the heat exchanger block is located on two opposite Side profiles attached, which then run across the isolation room Place the support on and hold the heat exchanger block. It is also possible to attach tie rods to laterally attached profiles, with the help of which Heat exchanger is suspended from the ceiling beams of the insulation room.
  • WO 99/11990 describes the heat exchanger block on the warm one End, that is to say in the upper area, to be held with support brackets and at the cold end to be braced diagonally in the isolation room using rope-shaped elements.
  • the object of the present invention is therefore to develop a heat exchanger which is fixed in the insulation tank so that the piping is as simple as possible and avoided or at least avoided the cable loops for the shrinkage compensation be kept small.
  • the heat exchanger block is fastened in such a way that thermally induced Changes in the pipes connected to the heat exchanger block a change in position of the block can be compensated. For example, at Cool down the system's heat exchanger block with the shrinking piping moved.
  • the heat exchanger block is preferably fastened in the insulation container in such a way that that its lower end can be moved in at least two spatial directions.
  • the heat exchanger block is particularly preferably freely movable above its Focus hung.
  • the heat exchanger block at the top end will be the warm one Feed air and the cold product gases are fed in at the lower end.
  • Corresponding only experience those with the lower, cold end when starting off or changing loads noticeable changes in length of the pipes connected to the heat exchanger block, since the temperature changes at the warm end are only slight.
  • the heat exchanger block can be suspended above its center of gravity its lower end can be deflected relatively easily. On the bottom end connected pipelines, the deflection of the Heat exchanger blocks cause only small forces. A Inadmissibly high stress on the pipes is avoided.
  • the invention has proven particularly useful in a heat exchanger which comprises at least two, preferably at least four, heat exchanger blocks.
  • the invention is particularly suitable for heat exchangers that have eight or ten Include heat exchanger blocks in two rows of four or five blocks.
  • Complex piping is necessary to keep the feed air to be cooled and that in counterflow distribute the guided product flows to the individual heat exchanger blocks.
  • the inventive attachment of the heat exchanger blocks simplifies the Piping, reduces the size of the insulation tank and thus leads to a clear one Cost cutting. This is especially true if the individual Heat exchanger blocks have feed and / or discharge lines that are in a common Lead manifold.
  • Fastening means are preferably provided which have joints so that the heat exchanger block can be deflected around the hinge axes.
  • a such gimbal suspension is relatively inexpensive feasible and has proven to be particularly cheap in practice.
  • FIGS 1 and 2 show the upper end of a heat exchanger block 1, which in the Main heat exchanger of a cryogenic air separation plant is used.
  • the entire main heat exchanger consists of several such parallel connected Heat exchanger blocks 1.
  • the heat exchanger block 1 has a width of up to 240 cm.
  • a collector distributor 2 On the Heat exchanger block 1 is a collector distributor 2, a so-called header, attached, from which one or more pipes, not shown, lead away.
  • the steel plate 4 is suspended from a double T-beam 8, which is not in the Coldbox shown is attached and carries the heat exchanger block 1.
  • the joint 7 allows movement in the plane of the steel plate 4 or around an axis 9 perpendicular to the steel plate 4.
  • the heat exchanger block 1 is thus cardanic by two perpendicular to each other horizontal 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 perpendicular is located above the center of gravity of the heat exchanger block 1.
  • the joint 7 is arranged so that the axis 9 to the project-specific Requirements, that is to say for a specific version of the heat exchanger occurring or calculable pipe tensions is adjusted.
  • Pipelines for supply and discharge to each other in heat exchange bringing fluid flows attached At the lower end of the heat exchanger block 1 are one or more, not shown Pipelines for supply and discharge to each other in heat exchange bringing fluid flows attached. With load changes and with warm and Cold running of the system experiences these pipes due to thermal conditions Length changes of about 3 to 4 mm per meter of pipeline length. Through the suspension of the heat exchanger block 1 above his The center of gravity is already relatively low at its lower end attacking forces deflected. The deflection of the heat exchanger block 1 is the same thermally induced changes in pipe length, so that on cable loops for the shrinkage compensation in the pipelines can be dispensed with.

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)

Abstract

Heat exchanger has heat exchanger blocks (1) which are mounted on pivots (5, 7, 10) in insulating casings. This allows them to move in at least two directions within the casings.

Description

Die Erfindung betrifft einen Wärmetauscher mit mindestens einem Wärmetauscherblock und einem den Wärmetauscher umgebenden Isolationsbehälter, wobei Befestigungsmittel vorgesehen sind, um den Wärmetauscherblock hängend in dem Isolationsbehälter zu befestigen sowie dessen Verwendung in einer Tieftemperaturluftzerlegungsanlage.The invention relates to a heat exchanger with at least one Heat exchanger block and an insulation tank surrounding the heat exchanger, fastening means are provided to hang the heat exchanger block in to attach the insulation container and its use in one Cryogenic air separation plant.

Bei der Tieftemperaturzerlegung von Luft muss die zu zerlegende Einsatzluft auf die Verfahrenstemperatur abgekühlt werden. Dies erfolgt üblicherweise durch indirekten Wärmeaustausch der Einsatzluft mit den in der Luftzerlegungsanlage gewonnenen Produktströmen. Bei Anlagen, in denen große Luftmengen verarbeitet werden, wird der Hauptwärmetauscher durch mehrere parallel geschaltete Wärmetauscherblöcke realisiert. Die einzelnen Wärmetauscherblöcke sind dabei in der Regel als Plattenwärmetauscher ausgebildet.When air is decomposed at low temperatures, the feed air to be separated must be on the Process temperature are cooled. This is usually done through indirect Heat exchange of the feed air with that obtained in the air separation plant Product streams. In systems in which large amounts of air are processed, the Main heat exchanger through several heat exchanger blocks connected in parallel realized. The individual heat exchanger blocks are usually as Plate heat exchanger trained.

Die thermische Isolierung des Hauptwärmetauschers erfolgt durch Einbringen des Wärmetauschers in einen thermisch isolierten Isolationsbehälter, eine sogenannte Coldbox. Zur Befestigung des Wärmetauschers beziehungsweise der einzelnen Wärmetauscherblöcke in dem Isolationsbehälter sind verschiedene Verfahren bekannt.The main heat exchanger is thermally insulated by inserting the Heat exchanger in a thermally insulated insulation container, a so-called Cold box. For fastening the heat exchanger or the individual Various methods are known for heat exchanger blocks in the insulation container.

Zum einen ist bekannt, die Wärmetauscherblöcke auf Ständern oder Trägem auf den Boden beziehungsweise auf das Fundament des Isolationsgehäuses zu stellen. Teilweise werden auch an dem Wärmetauscherblock auf zwei gegenüberliegenden Seiten Profile angebracht, die dann auf quer durch den Isolationsraum verlaufende Träger aufgelegt werden und den Wärmetauscherblock halten. Ebenso ist es möglich, an seitlich angebrachten Profilen Zugstangen anzubringen, mit deren Hilfe der Wärmetauscher an Deckenträgem des Isolationsraumes aufgehängt wird.On the one hand, it is known that the heat exchanger blocks on stands or supports on the Place the floor or on the foundation of the insulation housing. In some cases, the heat exchanger block is located on two opposite Side profiles attached, which then run across the isolation room Place the support on and hold the heat exchanger block. It is also possible to attach tie rods to laterally attached profiles, with the help of which Heat exchanger is suspended from the ceiling beams of the insulation room.

Weiter ist in der WO 99/11990 beschrieben, den Wärmetauscherblock am warmen Ende, das heißt im oberen Bereich, mit Tragkonsolen zu halten und am kalten Ende mittels seilförmiger Elemente schräg im Isolationsraum zu verspannen. Furthermore, WO 99/11990 describes the heat exchanger block on the warm one End, that is to say in the upper area, to be held with support brackets and at the cold end to be braced diagonally in the isolation room using rope-shaped elements.

Allen diesen Befestigungsmethoden ist gemeinsam, dass der Wärmetauscherblock starr in dem Isolationsraum befestigt ist. Beim Anfahren der Anlage oder bei Laständerungen erfahren jedoch die mit dem Wärmetauscherblock verbundenen Rohrleitungen temperaturbedingt deutliche Längenänderungen von bis zu 4 mm pro Meter Rohrlänge. Um beispielsweise beim Abkühlen Risse oder andere Beschädigungen an dem Wärmetauscherblock oder den Rohrleitungen aufgrund der Rohrschrumpfung zu vermeiden, müssen deshalb bisher Leitungsschleifen als Schrumpfungsausgleich vorgesehen oder die Stutzen am Wärmetauscherblock kostenintensiv verstärkt werden. Dadurch wird die zur Verrohrung nötige Rohrlänge größer, der Platzbedarf für die Verrohrung steigt und die Verrohrung wird komplizierter.All these fastening methods have in common that the heat exchanger block is rigidly attached in the isolation room. When starting up the system or at However, load changes experience those associated with the heat exchanger block Pipelines, due to temperature, significant changes in length of up to 4 mm each Meters of pipe length. For example, when cooling cracks or others Damage to the heat exchanger block or the pipes due to To avoid pipe shrinkage, cable loops have to be considered Shrinkage compensation provided or the sockets on the heat exchanger block be intensively reinforced. This will make the pipe length necessary for the piping larger, the space required for the piping increases and the piping becomes more complicated.

Aufgabe vorliegender Erfindung ist es daher, einen Wärmetauscher zu entwickeln, der so in dem Isolationsbehälter befestigt ist, dass die Verrohrung möglichst einfach wird und die Leitungsschleifen für den Schrumpfungsausgleich vermieden oder zumindest klein gehalten werden.The object of the present invention is therefore to develop a heat exchanger which is fixed in the insulation tank so that the piping is as simple as possible and avoided or at least avoided the cable loops for the shrinkage compensation be kept small.

Diese Aufgabe wird erfindungsgemäß durch einen Wärmetauscher der eingangs genannten Art gelöst, wobei der Wärmetauscherblock in dem Isolationsbehälter bewegbar angeordnet ist.This object is achieved by a heat exchanger at the outset mentioned type solved, the heat exchanger block in the insulation container is movably arranged.

Erfindungsgemäß wird der Wärmetauscherblock so befestigt, dass thermisch bedingte Änderungen in den mit dem Wärmetauscherblock verbundenen Rohrleitungen durch eine Lageänderung des Blocks ausgeglichen werden. So wird beispielsweise beim Abkühlen der Anlage der Wärmetauscherblock mit den schrumpfenden Rohrleitungen mitbewegt.According to the heat exchanger block is fastened in such a way that thermally induced Changes in the pipes connected to the heat exchanger block a change in position of the block can be compensated. For example, at Cool down the system's heat exchanger block with the shrinking piping moved.

Vorzugsweise wird der Wärmetauscherblock in dem Isolationsbehälter so befestigt, dass dessen unteres Ende in mindestens zwei Raumrichtungen bewegbar ist. Besonders bevorzugt ist der Wärmetauscherblock frei beweglich über seinem Schwerpunkt aufgehängt.The heat exchanger block is preferably fastened in the insulation container in such a way that that its lower end can be moved in at least two spatial directions. The heat exchanger block is particularly preferably freely movable above its Focus hung.

Üblicherweise werden dem Wärmetauscherblock am oberen Ende die warme Einsatzluft und am unteren Ende die kalten Produktgase zugeführt. Entsprechend erfahren beim Anfahren oder bei Laständerungen nur die mit dem unteren, kalten Ende des Wärmetauscherblocks verbundenen Rohrleitungen merkliche Längenänderungen, da die Temperaturänderungen am warmen Ende nur gering sind. Durch die Aufhängung des Wärmetauscherblocks über seinem Schwerpunkt kann dieser an seinem unteren Ende relativ leicht ausgelenkt werden. Auf die mit dem unteren Ende verbundenen Rohrleitungen, die durch ihre Schrumpfung die Auslenkung des Wärmetauscherblocks verursachen, wirken daher nur geringe Kräfte ein. Eine unzulässig hohe Spannungsbeanspruchung der Rohrleitungen wird vermieden.Usually the heat exchanger block at the top end will be the warm one Feed air and the cold product gases are fed in at the lower end. Corresponding only experience those with the lower, cold end when starting off or changing loads noticeable changes in length of the pipes connected to the heat exchanger block, since the temperature changes at the warm end are only slight. Through the The heat exchanger block can be suspended above its center of gravity its lower end can be deflected relatively easily. On the bottom end connected pipelines, the deflection of the Heat exchanger blocks cause only small forces. A Inadmissibly high stress on the pipes is avoided.

Die Erfindung hat sich insbesondere bei einem Wärmetauscher bewährt, der mindestens zwei, vorzugsweise mindestens vier Wärmetauscherblöcke umfasst. Besonders geeignet ist die Erfindung bei Wärmetauschern, die acht oder zehn Wärmetauscherblöcke in zwei Reihen zu je vier oder fünf Blöcken umfassen. Bei größeren Wärmetauschem, die aus mehreren Wärmetauscherblöcken bestehen, sind komplexe Verrohrungen nötig, um die zu kühlende Einsatzluft und die im Gegenstrom geführten Produktströme auf die einzelnen Wärmetauscherblöcke zu verteilen.The invention has proven particularly useful in a heat exchanger which comprises at least two, preferably at least four, heat exchanger blocks. The invention is particularly suitable for heat exchangers that have eight or ten Include heat exchanger blocks in two rows of four or five blocks. at Larger heat exchangers, which consist of several heat exchanger blocks Complex piping is necessary to keep the feed air to be cooled and that in counterflow distribute the guided product flows to the individual heat exchanger blocks.

Die bisher notwendigen Leitungsschleifen als Schrumpfungslängen erschweren die Verrohrung zusätzlich und vergrößern insbesondere den dafür notwendigen Platzbedarf deutlich. Dadurch müssen auch größere Isolationsbehälter vorgesehen werden, wodurch die Kosten für eine solche Anlage weiter erhöht werden.The previously required line loops as shrink lengths complicate the Additional piping and in particular enlarge the necessary Space requirements clearly. As a result, larger insulation containers must also be provided be, which further increases the cost of such a system.

Die erfindungsgemäße Befestigung der Wärmetauscherblöcke vereinfacht die Verrohrung, verkleinert den Isolationsbehälter und führt somit zu einer deutlichen Kostensenkung. Dies gilt insbesondere dann, wenn die einzelnen Wärmetauscherblöcke Zu- und / oder Ableitungen besitzen, die in eine gemeinsame Sammelleitung führen.The inventive attachment of the heat exchanger blocks simplifies the Piping, reduces the size of the insulation tank and thus leads to a clear one Cost cutting. This is especially true if the individual Heat exchanger blocks have feed and / or discharge lines that are in a common Lead manifold.

Vorzugsweise sind Befestigungsmittel vorgesehen, die Gelenke aufweisen, so dass der Wärmetauscherblock um die Gelenkachsen ausgelenkt werden kann. Eine derartige kardanische Aufhängung ist mit relativ geringem technischen Aufwand realisierbar und hat sich in der Praxis als besonders günstig erwiesen.Fastening means are preferably provided which have joints so that the heat exchanger block can be deflected around the hinge axes. A such gimbal suspension is relatively inexpensive feasible and has proven to be particularly cheap in practice.

Die Erfindung sowie weitere Einzelheiten der Erfindung werden im Folgenden anhand von in den Zeichnungen dargestellten Ausführungsbeispielen näher erläutert. Hierbei zeigen:

  • Figur 1 schematisch die Aufhängung eines erfindungsgemäßen Wärmetauschers und
  • Figur 2 eine Seitenansicht von Figur 1.
    • The invention and further details of the invention are explained in more detail below with reference to exemplary embodiments shown in the drawings. Here show:
  • Figure 1 shows schematically the suspension of a heat exchanger according to the invention and
  • Figure 2 is a side view of Figure 1.

    • Die Figuren 1 und 2 zeigen das obere Ende eines Wärmetauscherblocks 1, der im Hauptwärmetauscher einer Tieftemperaturluftzerlegungsanlage eingesetzt wird. Der gesamte Hauptwärmetauscher besteht aus mehreren derartigen parallel geschalteten Wärmetauscherblöcken 1.Figures 1 and 2 show the upper end of a heat exchanger block 1, which in the Main heat exchanger of a cryogenic air separation plant is used. The entire main heat exchanger consists of several such parallel connected Heat exchanger blocks 1.

    Der Wärmetauscherblock 1 besitzt eine Breite von bis zu 240 cm. Auf dem Wärmetauscherblock 1 ist ein Sammler-Verteiler 2, ein sogeannnter Header, angebracht, von dem ein oder mehrere nicht dargestellte Rohrleitungen wegführen.The heat exchanger block 1 has a width of up to 240 cm. On the Heat exchanger block 1 is a collector distributor 2, a so-called header, attached, from which one or more pipes, not shown, lead away.

    An dem Wärmetauscherblock 1 sind auf zwei gegenüberliegenden Seiten Aluminiumplatten 3 befestigt, die nach oben über den Header 2 hinausragen. Eine im wesentlichen dreieckförmige Stahlplatte 4 oder ein Stahlträger, der gemäß den statischen Erfordernissen ausgelegt ist, wird senkrecht zu den Aluminiumplatten 3 oberhalb des Headers 2 angeordnet und an zwei Ecken über Bolzen 5 gelenkig mit den beiden Aluminiumplatten 3 verbunden. Die Stahlplatte 4 ist um die durch die Verlängerung der beiden Bolzen 5 gebildete Achse 6 relativ zum Wärmetauscherblock 1 bewegbar.At the heat exchanger block 1 are on two opposite sides Fixed aluminum plates 3, which protrude upward above the header 2. One in essential triangular steel plate 4 or a steel beam, which according to the static requirements is designed, is perpendicular to the aluminum plates 3rd arranged above the header 2 and articulated at two corners with bolts 5 the two aluminum plates 3 connected. The steel plate 4 is by the Extension of the two bolts 5 formed axis 6 relative to the heat exchanger block 1 movable.

    An der dritten Ecke der Stahlplatte 4 befindet sich ein weiteres Gelenk 7. Mittels des Gelenks 7 ist die Stahlplatte 4 an einem Doppel-T-Träger 8 aufgehängt, der in der nicht dargestellten Coldbox befestigt ist und den Wärmetauscherblock 1 trägt. Das Gelenk 7 erlaubt eine Bewegung in der Ebene der Stahlplatte 4 beziehungsweise um eine Achse 9 senkrecht zur Stahlplatte 4.At the third corner of the steel plate 4 there is another joint 7. By means of the Joint 7, the steel plate 4 is suspended from a double T-beam 8, which is not in the Coldbox shown is attached and carries the heat exchanger block 1. The joint 7 allows movement in the plane of the steel plate 4 or around an axis 9 perpendicular to the steel plate 4.

    Der Wärmetauscherblock 1 ist damit kardanisch um zwei senkrecht zueinander liegende Achsen 6, 9 drehbar aufgehängt. Die Anordnung der beiden Aluminiumplatten 3 und der Stahlplatte 4 wird so gewählt, dass sich der Aufhängungspunkt 10 senkrecht oberhalb des Schwerpunkts des Wärmetauscherblocks 1 befindet. The heat exchanger block 1 is thus cardanic by two perpendicular to each other horizontal 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 perpendicular is located above the center of gravity of the heat exchanger block 1.

    Durch einen geeignet gewählten Abstand zwischen den Aluminiumplatten 3 und der Stahlplatte 4 kann zusätzlich eine horizontale Bewegung des Wärmetauscherblocks 1 aufgenommen werden.By a suitably chosen distance between the aluminum plates 3 and Steel plate 4 can additionally move the heat exchanger block 1 horizontally be included.

    Das Gelenk 7 wird so angeordnet, dass die Achse 9 an die projektspezifischen Erfordernisse, das heißt an die bei einer spezifischen Ausführung des Wärmetauschers auftretenden beziehungsweise berechenbaren Rohrspannungen, angepasst ist.The joint 7 is arranged so that the axis 9 to the project-specific Requirements, that is to say for a specific version of the heat exchanger occurring or calculable pipe tensions is adjusted.

    Am unteren Ende des Wärmetauscherblocks 1 sind ein oder mehrere nicht dargestellte Rohrleitungen zur Zu- und Ableitung der miteinander in Wärmeaustausch zu bringenden Fluidströme angebracht. Bei Laständerungen und beim Warm- und Kaltfahren der Anlage erfahren diese Rohrleitungen thermisch bedingt Längenänderungen von etwa 3 bis 4 mm pro Meter Rohrleitungslänge. Durch die erfindungsgemäße Aufhängung des Wärmetauscherblocks 1 über seinem Schwerpunkt wird dieser bereits durch relativ geringe an seinem unteren Ende angreifende Kräfte ausgelenkt. Die Auslenkung des Wärmetauscherblocks 1 gleicht die thermisch bedingten Rohrlängenänderungen aus, so dass auf Leitungsschleifen für den Schrumpfungsausgleich in den Rohrleitungen verzichtet werden kann.At the lower end of the heat exchanger block 1 are one or more, not shown Pipelines for supply and discharge to each other in heat exchange bringing fluid flows attached. With load changes and with warm and Cold running of the system experiences these pipes due to thermal conditions Length changes of about 3 to 4 mm per meter of pipeline length. Through the suspension of the heat exchanger block 1 above his The center of gravity is already relatively low at its lower end attacking forces deflected. The deflection of the heat exchanger block 1 is the same thermally induced changes in pipe length, so that on cable loops for the shrinkage compensation in the pipelines can be dispensed with.

    Claims (9)

    Wärmetauscher mit mindestens einem Wärmetauscherblock und einem den Wärmetauscher umgebenden Isolationsbehälter, wobei Befestigungsmittel vorgesehen sind, um den Wärmetauscherblock hängend in dem Isolationsbehälter zu befestigen, dadurch gekennzeichnet, dass der Wärmetauscherblock (1) in dem Isolationsbehälter bewegbar angeordnet ist.Heat exchanger with at least one heat exchanger block and an insulation container surrounding the heat exchanger, fastening means being provided to hang the heat exchanger block in the insulation container, characterized in that the heat exchanger block (1) is movably arranged in the insulation container. Wärmetauscher nach Anspruch 1, dadurch gekennzeichnet, dass das untere Ende des Wärmetauscherblocks (1) in mindestens zwei Raumrichtungen bewegbar ist.Heat exchanger according to claim 1, characterized in that the lower end of the heat exchanger block (1) is movable in at least two spatial directions. Wärmetauscher nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Wärmetauscherblock (1) frei beweglich über seinem Schwerpunkt aufgehängt ist.Heat exchanger according to claim 1 or 2, characterized in that the heat exchanger block (1) is freely movable above its center of gravity. Wärmetauscher nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass der Wärmetauscher mindestens zwei, vorzugsweise mindestens drei Wärmetauscherblöcke (1) umfasst.Heat exchanger according to one of claims 1 to 3, characterized in that the heat exchanger comprises at least two, preferably at least three, heat exchanger blocks (1). Wärmetauscher nach Anspruch 4, dadurch gekennzeichnet, dass die Wärmetauscherblöcke (1) Zu- und/oder Ableitungen besitzen, die in eine gemeinsame Sammelleitung führen.Heat exchanger according to claim 4, characterized in that the heat exchanger blocks (1) have feed and / or discharges which lead into a common manifold. Wärmetauscher nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die Befestigungsmittel Gelenke (5, 7) aufweisen.Heat exchanger according to one of claims 1 to 5, characterized in that the fastening means have joints (5, 7). Wärmetauscher nach Anspruch 6, dadurch gekennzeichnet, dass die Befestigungsmittel zwei senkrecht zueinander liegende Drehachsen (6, 9) aufweisen.Heat exchanger according to claim 6, characterized in that the fastening means have two mutually perpendicular axes of rotation (6, 9). Wärmetauscher nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass die Befestigungsmittel ein erstes mit dem Wärmetauscherblock (1) fest verbundenes Element (3) und ein mit dem ersten Element (3) gelenkig verbundenes zweites Element (4) aufweisen, wobei das zweite Element (4) gelenkig in dem Isolationsbehälter befestigt ist. Heat exchanger according to one of claims 1 to 7, characterized in that the fastening means comprise a first element (3) fixedly connected to the heat exchanger block (1) and a second element (4) articulatedly connected to the first element (3), the second Element (4) is articulated in the insulation container. Verwendung eines Wärmetauschers nach einem der Ansprüche 1 bis 8 in einer Tieftemperaturluftzerlegungsanlage, insbesondere als Hauptwärmetauscher einer Tieftemperaturluftzerlegungsanlage.Use of a heat exchanger according to one of claims 1 to 8 in one Cryogenic air separation plant, especially as a main heat exchanger Cryogenic air separation plant.
    EP02004875A 2001-03-06 2002-03-04 Heat exchanger Expired - Lifetime EP1239254B1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    DE10110704A DE10110704A1 (en) 2001-03-06 2001-03-06 heat exchangers
    DE10110704 2001-03-06

    Publications (3)

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    EP1239254A2 true EP1239254A2 (en) 2002-09-11
    EP1239254A3 EP1239254A3 (en) 2002-12-04
    EP1239254B1 EP1239254B1 (en) 2006-05-10

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    Family Applications (1)

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    EP02004875A Expired - Lifetime EP1239254B1 (en) 2001-03-06 2002-03-04 Heat exchanger

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

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    FR2995672B1 (en) * 2012-09-19 2014-10-03 Air Liquide HEAT EXCHANGER AND METHOD OF INSTALLING A GAS SEPARATION UNIT COMPRISING SUCH HEAT EXCHANGERS
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    Also Published As

    Publication number Publication date
    JP3978353B2 (en) 2007-09-19
    KR20020071732A (en) 2002-09-13
    DE50206714D1 (en) 2006-06-14
    CN1384328A (en) 2002-12-11
    MXPA02002000A (en) 2004-04-21
    JP2002303497A (en) 2002-10-18
    TW514717B (en) 2002-12-21
    US7325594B2 (en) 2008-02-05
    ATE325998T1 (en) 2006-06-15
    BR0200654B1 (en) 2010-11-16
    CN1260540C (en) 2006-06-21
    EP1239254A3 (en) 2002-12-04
    CA2375794A1 (en) 2002-09-06
    DE10110704A1 (en) 2002-09-12
    BR0200654A (en) 2002-12-10
    KR100876039B1 (en) 2008-12-26
    CA2375794C (en) 2012-07-03
    EP1239254B1 (en) 2006-05-10
    US20020124998A1 (en) 2002-09-12

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