EP1239254B1 - Heat exchanger - Google Patents
Heat exchanger Download PDFInfo
- 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
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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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- 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.
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- 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
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 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.
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.In the case of cryogenic decomposition of air, 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. In systems in which large volumes of air are processed, 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.
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 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.
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 to place the heat exchanger blocks on stands or supports on the floor or on the foundation of the insulation housing. In part, profiles are also attached to the heat exchanger block on two opposite sides, which are then placed on running across the insulation space carrier and hold the heat exchanger block. It is also possible to attach laterally mounted profiles tie rods, with the aid of the heat exchanger is suspended from ceiling supports of the insulation space.
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.Further, described in WO 99/11990 to hold the heat exchanger block at the warm end, that is in the upper region, with support brackets and to clamp at the cold end by means of rope-shaped elements at an angle in the insulation space.
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 secured in the insulation space. When the system starts up or changes in load, however, the pipes connected to the heat exchanger block experience significant length changes of up to 4 mm per meter of pipe length as a result of temperature. In order to avoid cracks or other damage to the heat exchanger block or pipelines due to pipe shrinkage, for example, when cooling down, so far cable loops must be provided as shrinkage compensation or the nozzles are reinforced at the heat exchanger block costly. As a result, the pipe length required for the piping becomes larger, the space required for the piping increases and the piping becomes more complicated.
Die US 4,377,025 zeigt einen Wärmetauscherblock, der an mehreren Aufhängungspunkten beweglich aufgehängt ist, so dass sich dieser bei Erwärmung ausdehnen kann. Die Lage des Wärmetauscherblocks soll bei Temperaturänderungen im wesentlichen unverändert bleiben. Diese bekannte Befestigung erlaubt zwar eine thermische Ausdehnung des Wärmetauscherblocks zu kompensieren, Längenänderungen der mit dem Wärmetauscherblock verbundenen Rohrleitungen werden durch die Aufhängung jedoch nicht ausgeglichen, so dass auch hier noch Rohrschleifen erforderlich sind.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. Although this known attachment allows to compensate for thermal expansion of the heat exchanger block, changes in length of the pipes connected to the heat exchanger block are not compensated by the suspension, so that pipe loops are still required here.
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.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.
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 of the type mentioned, wherein the heat exchanger block is arranged movably in the insulation container.
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 invention, 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. Thus, for example, during cooling of the system, the heat exchanger block is moved along with the shrinking pipes.
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.Preferably, the heat exchanger block is mounted in the insulation container so that its lower end is movable in at least two spatial directions. Particularly preferably, the heat exchanger block is freely movable suspended above its center of gravity.
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 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.
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 Wärmetauschern, 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 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. For larger heat exchangers, which consist of several heat exchanger blocks, complex piping is necessary to distribute the feed air to be cooled and the countercurrent product streams 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 hitherto necessary cable loops as shrinkage lengths complicate the piping in addition and in particular significantly increase the space required for this purpose. As a result, larger insulation container must be provided, whereby the cost of such a system can be further increased.
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 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.
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.Preferably, 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.
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.
- FIG. 1
- schematically the suspension of a heat exchanger according to the invention and
- FIG. 2
- 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
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
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.On the
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.By means of the
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
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 selected distance between the
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
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
Claims (9)
- Heat exchanger, having at least one heat exchanger block and an insulating vessel which surrounds the heat exchanger, in which securing means are provided for securing the heat exchanger block hanging on a suspension point in the insulating vessel, the heat exchanger block (1) being arranged movably in the insulating vessel, characterized in that the suspension point is situated vertically above the centre of gravity of the heat exchanger block (1).
- Heat exchanger according to Claim 1, characterized in that the lower end of the heat exchanger block (1) can move in at least two spatial directions.
- Heat exchanger according to Claim 1 or 2, characterized in that the heat exchanger block (1) is suspended in such a manner that it can move freely above its centre of gravity.
- 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).
- Heat exchanger according to Claim 4, characterized in that the heat exchanger blocks (1) have feed and/or discharge lines which lead into a common connection line.
- Heat exchanger according to one of Claims 1 to 5, characterized in that the securing means have joints (5, 7).
- Heat exchanger according to Claim 6, characterized in that the securing means have two axes of rotation (6, 9) which lie perpendicular to one another.
- Heat exchanger according to one of Claims 1 to 7, characterized in that the securing means have a first element (3), which is fixedly connected to the heat exchanger block (1), and a second element (4), which is articulately connected to the first element (3), the second element (4) being articulately secured in the insulating vessel.
- Use of a heat exchanger according to one of Claims 1 to 8 in a low-temperature air fractionation plant, in particular as the principal heat exchanger of a low-temperature air fractionation plant.
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)
| Publication Number | Publication Date |
|---|---|
| EP1239254A2 EP1239254A2 (en) | 2002-09-11 |
| EP1239254A3 EP1239254A3 (en) | 2002-12-04 |
| EP1239254B1 true EP1239254B1 (en) | 2006-05-10 |
Family
ID=7676452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP02004875A Expired - Lifetime EP1239254B1 (en) | 2001-03-06 | 2002-03-04 | Heat exchanger |
Country Status (11)
| Country | Link |
|---|---|
| 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) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2503269A1 (en) | 2011-03-25 | 2012-09-26 | Linde Aktiengesellschaft | Device for cryogenic decomposition of air |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10331209A1 (en) * | 2003-07-10 | 2005-02-03 | Alto Deutschland Gmbh | Heat exchanger with ceramic floor |
| GB2422004A (en) * | 2005-01-07 | 2006-07-12 | Hiflux Ltd | Plate heat exchanger |
| JP5256105B2 (en) * | 2009-04-16 | 2013-08-07 | 三菱電機株式会社 | Heat exchanger for refrigeration air conditioner and transfer tool for the heat exchanger |
| FR2995672B1 (en) * | 2012-09-19 | 2014-10-03 | Air Liquide | HEAT EXCHANGER AND METHOD OF INSTALLING A GAS SEPARATION UNIT COMPRISING SUCH HEAT EXCHANGERS |
| 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 (en) * | 1926-03-14 | 1928-06-04 | Richard Pabst Dipl Ing | Device for heating bath water |
| 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 |
| GB1085361A (en) * | 1963-03-29 | 1967-09-27 | Foster Wheeler Ltd | Improvements in and relating to heat exchangers |
| US3285327A (en) * | 1964-08-05 | 1966-11-15 | Dresser Ind | Discharge cooler for rotary positive displacement vacuum pump |
| US4066119A (en) * | 1976-08-30 | 1978-01-03 | Caterpillar Tractor Co. | Rotatable radiator assembly for a vehicle |
| US4064932A (en) * | 1977-02-14 | 1977-12-27 | Hughes Aircraft Company | All climate heat exchanger unit with adjustable temperature and defrost control |
| FR2405451A1 (en) * | 1977-10-07 | 1979-05-04 | Hamon | HEAT EXCHANGER, ESPECIALLY FOR ATMOSPHERIC REFRIGERANT |
| US4232455A (en) * | 1977-12-03 | 1980-11-11 | Beloit Corporation | Dryer drum condensate removal apparatus |
| US4377025A (en) * | 1978-10-26 | 1983-03-22 | The Garrett Corporation | Method of mounting heat exchanger support system |
| JPS5929993A (en) * | 1982-08-10 | 1984-02-17 | Asahi Glass Co Ltd | Horizontal type multi-tube system heat exchanger |
| JPS5974497A (en) * | 1982-10-22 | 1984-04-26 | Mitsubishi Heavy Ind Ltd | Exhaust-gas heat exchanger |
| US4852640A (en) * | 1986-03-28 | 1989-08-01 | Exothermics-Eclipse Inc. | Recuperative heat exchanger |
| US4685426A (en) * | 1986-05-05 | 1987-08-11 | The Babcock & Wilcox Company | Modular exhaust gas steam generator with common boiler casing |
| DE3734523A1 (en) * | 1987-10-13 | 1989-04-27 | Sueddeutsche Kuehler Behr | Charge-air cooler (intercooler) |
| US5131459A (en) * | 1991-10-08 | 1992-07-21 | Deltak Corporation | Heat exchanger with movable tube assemblies |
| DE4206657C2 (en) * | 1992-03-03 | 1997-01-09 | Siemens Ag | Arrangement of a steam generator in a supporting structure |
| US5380502A (en) * | 1993-07-26 | 1995-01-10 | Atlantic Richfield Company | System for suspending reactor tubes in a reactor |
| IT234821Y1 (en) * | 1994-08-12 | 2000-03-16 | Gabriele Muzzarelli | MULTI-PURPOSE, COMPLETE AND AUTONOMOUS DAIRY OPERATING UNIT FOR THE PRODUCTION OF MILK DERIVATIVES |
| DE19737521A1 (en) | 1997-08-28 | 1999-03-04 | Messer Griesheim Gmbh | Plant for the low-temperature separation of air |
| US6105660A (en) * | 1998-11-02 | 2000-08-22 | Textron Inc. | Oil cooler movably supported on a vehicle and method for same |
-
2001
- 2001-03-06 DE DE10110704A patent/DE10110704A1/en not_active Withdrawn
-
2002
- 2002-02-25 MX MXPA02002000A patent/MXPA02002000A/en active IP Right Grant
- 2002-02-26 KR KR1020020010160A patent/KR100876039B1/en active IP Right Grant
- 2002-02-26 TW TW091103424A patent/TW514717B/en not_active IP Right Cessation
- 2002-03-04 AT AT02004875T patent/ATE325998T1/en not_active IP Right Cessation
- 2002-03-04 DE DE50206714T patent/DE50206714D1/en not_active Expired - Lifetime
- 2002-03-04 EP EP02004875A patent/EP1239254B1/en not_active Expired - Lifetime
- 2002-03-05 BR BRPI0200654-5A patent/BR0200654B1/en not_active IP Right Cessation
- 2002-03-05 JP JP2002058285A patent/JP3978353B2/en not_active Expired - Fee Related
- 2002-03-06 CA CA2375794A patent/CA2375794C/en not_active Expired - Fee Related
- 2002-03-06 CN CNB021068739A patent/CN1260540C/en not_active Expired - Fee Related
- 2002-03-06 US US10/091,350 patent/US7325594B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2503269A1 (en) | 2011-03-25 | 2012-09-26 | Linde Aktiengesellschaft | Device for cryogenic decomposition of air |
| DE102011015233A1 (en) | 2011-03-25 | 2012-09-27 | Linde Ag | Apparatus for the cryogenic separation of air |
Also Published As
| Publication number | Publication date |
|---|---|
| DE50206714D1 (en) | 2006-06-14 |
| CA2375794C (en) | 2012-07-03 |
| CN1260540C (en) | 2006-06-21 |
| EP1239254A3 (en) | 2002-12-04 |
| CA2375794A1 (en) | 2002-09-06 |
| EP1239254A2 (en) | 2002-09-11 |
| TW514717B (en) | 2002-12-21 |
| MXPA02002000A (en) | 2004-04-21 |
| US7325594B2 (en) | 2008-02-05 |
| JP3978353B2 (en) | 2007-09-19 |
| CN1384328A (en) | 2002-12-11 |
| JP2002303497A (en) | 2002-10-18 |
| KR100876039B1 (en) | 2008-12-26 |
| BR0200654B1 (en) | 2010-11-16 |
| US20020124998A1 (en) | 2002-09-12 |
| BR0200654A (en) | 2002-12-10 |
| KR20020071732A (en) | 2002-09-13 |
| ATE325998T1 (en) | 2006-06-15 |
| DE10110704A1 (en) | 2002-09-12 |
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