EP0974803A2 - Heat exchanger for cooling hot process gas - Google Patents

Heat exchanger for cooling hot process gas Download PDF

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Publication number
EP0974803A2
EP0974803A2 EP99113759A EP99113759A EP0974803A2 EP 0974803 A2 EP0974803 A2 EP 0974803A2 EP 99113759 A EP99113759 A EP 99113759A EP 99113759 A EP99113759 A EP 99113759A EP 0974803 A2 EP0974803 A2 EP 0974803A2
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EP
European Patent Office
Prior art keywords
cooling
process gas
heat exchanger
tube
pipe
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
EP99113759A
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German (de)
French (fr)
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EP0974803A3 (en
EP0974803B1 (en
Inventor
Peter Brücher
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Borsig GmbH
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Borsig GmbH
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Publication date
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Publication of EP0974803A3 publication Critical patent/EP0974803A3/en
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Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G9/00—Thermal non-catalytic cracking, in the absence of hydrogen, of hydrocarbon oils
    • C10G9/002—Cooling of cracked gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/10—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically
    • F28D7/106—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically consisting of two coaxial conduits or modules of two coaxial conduits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/04—Arrangements for sealing elements into header boxes or end plates
    • F28F9/16—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling
    • F28F9/18—Arrangements for sealing elements into header boxes or end plates by permanent joints, e.g. by rolling by welding
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/0075—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for syngas or cracked gas cooling systems

Definitions

  • the invention relates to a heat exchanger for cooling a in a process gas generator or a reactor Process gas with the features of the preamble of Claim 1.
  • Hot process gases in ammonia plants, in methanol plants, in hydrogen plants and in oil or Residual gasification plants are produced in the Downstream reactor heat exchanger cooled.
  • the thermal energy contained in the process gas is recovered, producing high pressure steam.
  • Waste heat exchangers contain a variety of straight bundle tubes through which the process gas flows.
  • the heat of the process gas is applied to the bundle tubes within a pressure jacket, under boiling pressure standing water discharged.
  • the hot process gas is the Waste heat exchanger arranged horizontally or vertically can be, via a connected to the process gas generator Process gas line supplied.
  • They are also heat exchangers known, in which the tubes spiral as coils are trained. All of these are heat exchangers specifically expensive and only time-consuming to maintain repair.
  • the invention has for its object the generic Train heat exchangers so that they can be used for different purposes Processes such as B. in ammonia, in methanol, in Hydrogen plants or in oil or Residue gasification plants or for combustion processes can be used.
  • the connection is made in the heat exchanger according to the invention to the process gas generator via the transition line, the one Construction element is of simple shape.
  • This Transition line does not need to the internal structure of the Process gas generator to be customized, nor does it make one special design of the heat exchanger required.
  • the Heat exchanger can be due to the relatively free Design options can be standardized.
  • the Heat exchanger process gas generators are connected in that run different processes. So he can Heat exchanger for cooling process gases from the Ammonia production, methanol production, the Hydrogen production or oil or residue gasification be used.
  • the connecting pipes between the Transition line and the water chamber prevent that hot process gas hits the bottom of the water chamber.
  • a process gas generator 1 In a process gas generator 1, the z. B. to an oil or Residual gasification plant is heard, hot process gases generated in a downstream heat exchanger 2nd be cooled.
  • the process gas generator 1 is standing Construction and is in its lower part with a Provide gas outlet 3.
  • the heat exchanger 2 can in the same way also a reactor for the production of Ammonia, methanol or hydrogen can be connected.
  • transition line 4 At the gas outlet 3 of the process gas generator 1 is a horizontally arranged transition line 4 of circular Cross section connected.
  • the transition line 4 is with a fireproof, heat-insulating inner lining 5 Mistake.
  • brackets 6 On the outside of the transition line 4 and also the process gas generator 1 brackets 6 are attached with which the transition line 4 and the process gas generator 1 on supports 7 rest.
  • the heat exchanger 2 contains double tubes 8, which are in a row are arranged side by side.
  • the double tubes 8 are through Bandages 9 connected, which rest on carriers 10.
  • Each double tube 8 consists of a cooling tube 11, which in one Distance to form an annular space from an outer tube 12 is surrounded.
  • the outer tube 12 and the cooling tube 11 are on both ends close to a water chamber 13, 14 for Supply and discharge of a cooling medium welded on.
  • the Water chamber 13, 14 consists of a massive, strip-shaped piece in which a distance from each other circular depressions 15 are introduced, each one surrounded only cooling tube 11.
  • the diameter of the depression 15 is equal to or larger than the inside diameter of the Outer tube 12.
  • the recess 15 has in the area of Tube ends of the cooling tubes 11 have a thin, annular bottom 16 with a small remaining wall thickness. In this floor 16 is the cooling tube 11 welded.
  • the outer tube 12 is on the the side facing away from the thin bottom 16 to the water chamber 13, 14 welded.
  • the strip-shaped piece forming the water chamber 13, 14 consists preferably of individual together, e.g. B. by Welding connected sections of rectangular or square cross section. In every section of the water chamber 13, 14 is a single depression surrounding a cooling tube 11 15 introduced.
  • Each recess 15 opens out at the level of the bottom 16 preferably tangentially into a bore 17.
  • the holes 17 are each via connecting piece 18 with a collector 19 for the supply of a cooling medium or with a Steam drum 20 connected to discharge the cooling medium.
  • the Well 15 is provided with a further bore 21 which at the level of the bottom 16 led outwards and with a lockable drain pipe, not shown, is connected.
  • the cooling tubes 11 are on the gas inlet side via z. B. ceramic connecting pipes 22 with the transition line 4 and on the gas outlet side with a gas manifold 23 in Connection.
  • the connecting pipes 22 are coaxial to the Cooling tubes 11 arranged. They preferably have the same Inner diameter as the cooling tubes 11.
  • Each Connection tube 22 projects with a radial and axial distance in a tube extension 24 into it, at the inlet end each cooling tube 11 is provided.
  • Each connecting tube 22 is of a refractory, heat insulating layer 25 surrounded. This layer 25 is from enclosed a pipe section 26 which to the lower Water chamber 13 and welded to the transition line 4 is.
  • connection pipes 22 The entry-side, widening end of the Connection pipes 22 is in the inner lining 5 of the Transition line 4 is held and is via an opening 27 in the inner lining 5 with the leading process gas Cross section of the transition line 4 in connection.
  • the process gas generator 1 can also by a gas or Oil burner to be replaced.
  • the Heat exchanger 2 are operated as a fired auxiliary boiler.

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  • Engineering & Computer Science (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Separation By Low-Temperature Treatments (AREA)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)

Abstract

Heat exchanger has a horizontal transfer line (4) feeding hot process gas connected to the process gas generator (1). A connecting pipe (22) is arranged coaxially to each cooling pipe (11), so that on one side the connecting pipe (22) engages the cooling pipe (11) and leads out from the transfer line (4) on the other side. Heat exchanger for cooling a hot process gas produced in a gas generator (1) or a reactor comprises several cooling pipes (11) each surrounded by an outer tube (12). Each cooling pipe (11) and each outer tube (12) are welded at both ends to a water chamber (13, 14) for introducing and removing a cooling medium. The water chamber (13, 14) consists of a massive strip-like piece, into which circular recesses (15) are inserted corresponding to the number of cooling pipes (11). Each recess surrounds a cooling pipe (11) and has a diameter that is the same or is larger than inner diameter of the outer tube (12). The recess (15) has a thin annular base (16) having a low residual wall thickness. A horizontal transfer line (4) feeding hot process gas is connected to the process gas generator (1). A connecting pipe (22) is arranged coaxially to each cooling pipe (11), so that on one side the connecting pipe (22) engages the cooling pipe (11) and leads out from the transfer line (4) on the other side.

Description

Die Erfindung betrifft einen Wärmetauscher zum Kühlen eines in einem Prozeßgaserzeuger oder einem Reaktor erzeugten, heißen Prozeßgases mit den Merkmalen des Oberbegriffes des Patentanspruches 1.The invention relates to a heat exchanger for cooling a in a process gas generator or a reactor Process gas with the features of the preamble of Claim 1.

Heiße Prozeßgase, die in Ammoniakanlagen, in Methanolanlagen, in Wasserstoffanlagen und in Öl- bzw. Rückstandsvergasungsanlagen erzeugt werden, werden in dem Reaktor nachgeschalteten Abhitzewärmetauschern abgekühlt. Die in dem Prozeßgas enthaltene Wärmeenergie wird rückgewonnen, wobei Hochdruck-Dampf erzeugt wird.Hot process gases in ammonia plants, in methanol plants, in hydrogen plants and in oil or Residual gasification plants are produced in the Downstream reactor heat exchanger cooled. The thermal energy contained in the process gas is recovered, producing high pressure steam.

Bekannte Abhitzewärmetauscher enthalten eine Vielzahl von geraden Bündelrohren, die von dem Prozeßgas durchströmt sind. Dabei wird die Wärme des Prozeßgases an das die Bündelrohre innerhalb eines Druckmantels umgebende, unter Siededruck stehende Wasser abgeführt. Das heiße Prozeßgas wird dem Abhitzewärmetauscher, der horizontal oder vertikal angeordnet sein kann, über eine an den Prozeßgaserzeuger angeschlossene Prozeßgasleitung zugeführt. Es sind auch Abhitzewärmetauscher bekannt, bei denen die Rohre spiralförmig als Rohrschlangen ausgebildet sind. Alle diese Abhitzewärmetauscher sind spezifisch teuer und nur aufwendig zu warten und zu reparieren.Known waste heat exchangers contain a variety of straight bundle tubes through which the process gas flows. The heat of the process gas is applied to the bundle tubes within a pressure jacket, under boiling pressure standing water discharged. The hot process gas is the Waste heat exchanger arranged horizontally or vertically can be, via a connected to the process gas generator Process gas line supplied. They are also heat exchangers known, in which the tubes spiral as coils are trained. All of these are heat exchangers specifically expensive and only time-consuming to maintain repair.

Aus der DE-OS 44 45 687 und der DE-OS 196 22 139 ist ein Wärmetauscher mit einem linearen Doppelrohrregister bekannt. Die Doppelrohre sind an beiden Enden an je eine Wasserkammer angeschweißt, die aus einem massiven streifenförmigen Stück besteht. In dieses massive Stück sind entsprechend der Anzahl der Doppelrohre in einem Abstand voneinander Vertiefungen eingebracht, wobei jede Vertiefung einem Doppelrohr zugeordnet ist. Die Wasserkammer hält dem hohem Druck des Kühlmediums stand und ist kostengünstig herzustellen. Die Wasserkammer kann aus einzelnen miteinander verbundenen Abschnitten zusammengesetzt sein, wodurch diese Abschnitte und auch die Doppelrohre bei der Fertigung allseitig zugänglich sind. Der bekannte Wärmetauscher dient zum Kühlen von Spaltgas in einer Ethylenanlage. Jedes Rohr des Spaltofens dieser Anlage ist auf der Gaseintrittsseite des Wärmetauschers koaxial zu einem Doppelrohr an die Wasserkammer angeschweißt. Diese Anordnung bringt die genannten Vorteile mit sich und hat sich in der Praxis bewährt.From DE-OS 44 45 687 and DE-OS 196 22 139 is a Heat exchanger with a linear double tube register known. The double pipes are at each end of a water chamber welded that from a solid strip-shaped piece consists. In this massive piece are according to the number of the double tubes at a distance from each other introduced, each recess assigned to a double tube is. The water chamber maintains the high pressure of the cooling medium stand and is inexpensive to manufacture. The water chamber can consist of individual interconnected sections be composed, whereby these sections and also the Double pipes are accessible from all sides during production. The Known heat exchanger is used to cool cracked gas in one Ethylene plant. Every pipe in the cracking furnace of this plant is open the gas inlet side of the heat exchanger coaxial to one Double pipe welded to the water chamber. This arrangement brings the advantages mentioned and has in the Proven in practice.

Der Erfindung liegt die Aufgabe zugrunde, den gattungsgemäßen Wärmetauscher so auszubilden, daß er für unterschiedliche Prozesse, wie z. B. in Ammoniak-, in Methanol-, in Wasserstoffanlagen oder in Öl- bzw. Rückstandsvergasungsanlagen oder für Verbrennungsprozesse einsetzbar ist.The invention has for its object the generic Train heat exchangers so that they can be used for different purposes Processes such as B. in ammonia, in methanol, in Hydrogen plants or in oil or Residue gasification plants or for combustion processes can be used.

Diese Aufgabe wird bei einem gattungsgemäßen Wärmetauscher erfindungsgemäß durch die kennzeichnenden Merkmale des Patentanspruches 1 gelöst. Vorteilhafte Ausgestaltungen der Erfindung sind Gegenstand der Unteransprüche.This task is carried out in a generic heat exchanger according to the invention by the characterizing features of Claim 1 solved. Advantageous embodiments of the Invention are the subject of the dependent claims.

Bei dem erfindungsgemäßen Wärmetauscher erfolgt der Anschluß an den Prozeßgaserzeuger über die Übergangsleitung, die ein Konstruktionselement von einfacher Gestalt ist. Diese Übergangsleitung braucht nicht an den inneren Aufbau des Prozeßgaserzeugers angepaßt zu werden, noch macht sie eine besondere Gestaltung des Wärmetauschers erforderlich. Der Wärmetauscher kann aufgrund der verhältnismäßig freien Gestaltungsmöglichkeit standardisiert werden. Ferner kann der Wärmetauscher Prozeßgaserzeugern nachgeschaltet werden, in denen unterschiedliche Prozesse ablaufen. So kann der Wärmetauscher zur Kühlung von Prozeßgasen aus der Ammoniakherstellung, der Methanolherstellung, der Wasserstoffherstellung oder der Öl- bzw. Rückstandsvergasung eingesetzt werden. Die Verbindungsrohre zwischen der Übergangsleitung und der Wasserkammer verhindern, daß das heiße Prozeßgas auf den Boden der Wasserkammer trifft.The connection is made in the heat exchanger according to the invention to the process gas generator via the transition line, the one Construction element is of simple shape. This Transition line does not need to the internal structure of the Process gas generator to be customized, nor does it make one special design of the heat exchanger required. The Heat exchanger can be due to the relatively free Design options can be standardized. Furthermore, the Heat exchanger process gas generators are connected in that run different processes. So he can Heat exchanger for cooling process gases from the Ammonia production, methanol production, the Hydrogen production or oil or residue gasification be used. The connecting pipes between the Transition line and the water chamber prevent that hot process gas hits the bottom of the water chamber.

Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird im folgenden näher erläutert. Es zeigen:

Fig. 1
einen Wärmetauscher mit vorgeschaltetem Prozeßgaserzeuger in perspektivischer Darstellung,
Fig. 2
teilweise in Ansicht und teilweise im Längsschnitt den Wärmetauscher mit vorgeschaltetem Prozeßgaserzeuger nach Fig. 1,
Fig. 3
den Schnitt III - III nach Fig. 2 und
Fig. 4
die Einzelheit Z nach Fig. 1.
An embodiment of the invention is shown in the drawing and is explained in more detail below. Show it:
Fig. 1
a heat exchanger with an upstream process gas generator in a perspective view,
Fig. 2
partly in view and partly in longitudinal section, the heat exchanger with upstream process gas generator according to FIG. 1,
Fig. 3
the section III - III of FIG. 2 and
Fig. 4
the detail Z according to FIG. 1.

In einem Prozeßgaserzeuger 1, der z. B. zu einer Öl- oder Rückstandsvergasungsanlage gehört, werden heiße Prozeßgase erzeugt, die in einem nachgeschalteten Wärmetauscher 2 abgekühlt werden. Der Prozeßgaserzeuger 1 ist von stehender Bauart und ist in seinem unteren Teil mit einem Gasaustrittsstutzen 3 versehen. Der Wärmetauscher 2 kann in der gleichen Weise auch einem Reaktor zur Erzeugung von Ammoniak, Methanol- oder Wasserstoff nachgeschaltet sein.In a process gas generator 1, the z. B. to an oil or Residual gasification plant is heard, hot process gases generated in a downstream heat exchanger 2nd be cooled. The process gas generator 1 is standing Construction and is in its lower part with a Provide gas outlet 3. The heat exchanger 2 can in the same way also a reactor for the production of Ammonia, methanol or hydrogen can be connected.

An den Gasaustrittsstutzen 3 des Prozeßgaserzeugers 1 ist eine horizontal angeordnete Übergangsleitung 4 von kreisrundem Querschnitt angeschlossen. Die Übergangsleitung 4 ist mit einer feuerfesten, wärmeisolierende Innenauskleidung 5 versehen. Auf der Außenseite der Übergangsleitung 4 und auch des Prozeßgaserzeugers 1 sind Pratzen 6 angebracht, mit denen die Übergangsleitung 4 und der Prozeßgaserzeuger 1 auf Stützen 7 aufruhen.At the gas outlet 3 of the process gas generator 1 is a horizontally arranged transition line 4 of circular Cross section connected. The transition line 4 is with a fireproof, heat-insulating inner lining 5 Mistake. On the outside of the transition line 4 and also the process gas generator 1 brackets 6 are attached with which the transition line 4 and the process gas generator 1 on supports 7 rest.

Der Wärmetauscher 2 enthält Doppelrohre 8, die in einer Reihe nebeneinander angeordnet sind. Die Doppelrohre 8 sind durch Bandagen 9 verbunden, die auf Trägern 10 aufruhen. The heat exchanger 2 contains double tubes 8, which are in a row are arranged side by side. The double tubes 8 are through Bandages 9 connected, which rest on carriers 10.

Jedes Doppelrohr 8 besteht aus einem Kühlrohr 11, das in einem Abstand unter Bildung eines Ringraumes von einem Außenrohr 12 umgeben ist. Das Außenrohr 12 und das Kühlrohr 11 sind an beiden Enden dicht an je eine Wasserkammer 13, 14 zur Zuführung und Abführung eines Kühlmediums angeschweißt. Die Wasserkammer 13, 14 besteht aus einem massiven, streifenförmigen Stück, in das in einem Abstand voneinander kreisförmige Vertiefungen 15 eingebracht sind, die jeweils ein einziges Kühlrohr 11 umgeben. Der Durchmesser der Vertiefung 15 ist gleich dem oder größer als der Innendurchmesser des Außenrohres 12. Die Vertiefung 15 weist im Bereich der Rohrenden der Kühlrohre 11 einen dünnen, ringförmigen Boden 16 mit einer geringen Restwanddicke auf. In diesen Boden 16 ist das Kühlrohr 11 eingeschweißt. Das Außenrohr 12 ist auf der dem dünnen Boden 16 abgewandten Seite an die Wasserkammer 13, 14 geschweißt.Each double tube 8 consists of a cooling tube 11, which in one Distance to form an annular space from an outer tube 12 is surrounded. The outer tube 12 and the cooling tube 11 are on both ends close to a water chamber 13, 14 for Supply and discharge of a cooling medium welded on. The Water chamber 13, 14 consists of a massive, strip-shaped piece in which a distance from each other circular depressions 15 are introduced, each one surrounded only cooling tube 11. The diameter of the depression 15 is equal to or larger than the inside diameter of the Outer tube 12. The recess 15 has in the area of Tube ends of the cooling tubes 11 have a thin, annular bottom 16 with a small remaining wall thickness. In this floor 16 is the cooling tube 11 welded. The outer tube 12 is on the the side facing away from the thin bottom 16 to the water chamber 13, 14 welded.

Das die Wasserkammer 13, 14 bildende streifenförmige Stück besteht vorzugsweise aus einzelnen miteinander, z. B. durch Verschweißen verbundenen Abschnitten von rechteckigem oder quadratischem Querschnitt. In jeden Abschnitt der Wasserkammer 13, 14 ist eine einzige, ein Kühlrohr 11 umgebende Vertiefung 15 eingebracht.The strip-shaped piece forming the water chamber 13, 14 consists preferably of individual together, e.g. B. by Welding connected sections of rectangular or square cross section. In every section of the water chamber 13, 14 is a single depression surrounding a cooling tube 11 15 introduced.

In jede Vertiefung 15 mündet in der Höhe des Bodens 16 vorzugsweise tangential eine Bohrung 17 hinein. Die Bohrungen 17 sind jeweils über Verbindungsstutzen 18 mit einem Sammler 19 für die Zuführung eines Kühlmediums bzw. mit einer Dampftrommel 20 zur Abführung des Kühlmediums verbunden. Die Vertiefung 15 ist mit einer weiteren Bohrung 21 versehen, die in der Höhe des Bodens 16 nach außen geführt und mit einer absperrbaren, nicht gezeigten Abschlämmleitung verbunden ist.Each recess 15 opens out at the level of the bottom 16 preferably tangentially into a bore 17. The holes 17 are each via connecting piece 18 with a collector 19 for the supply of a cooling medium or with a Steam drum 20 connected to discharge the cooling medium. The Well 15 is provided with a further bore 21 which at the level of the bottom 16 led outwards and with a lockable drain pipe, not shown, is connected.

Die Kühlrohre 11 stehen auf der Gaseintrittsseite über z. B. keramische Verbindungsrohre 22 mit der Übergangsleitung 4 und auf der Gasaustrittsseite mit einer Gassammelleitung 23 in Verbindung. Die Verbindungsrohre 22 sind koaxial zu den Kühlrohren 11 angeordnet. Sie weisen vorzugsweise denselben Innendurchmesser wie die Kühlrohre 11 auf. Jedes Verbindungsrohr 22 ragt mit radialem und axialem Abstand in eine Rohrerweiterung 24 hinein, die am eintrittsseitigen Ende jedes Kühlrohres 11 vorgesehen ist.The cooling tubes 11 are on the gas inlet side via z. B. ceramic connecting pipes 22 with the transition line 4 and on the gas outlet side with a gas manifold 23 in Connection. The connecting pipes 22 are coaxial to the Cooling tubes 11 arranged. They preferably have the same Inner diameter as the cooling tubes 11. Each Connection tube 22 projects with a radial and axial distance in a tube extension 24 into it, at the inlet end each cooling tube 11 is provided.

Jedes Verbindungsrohr 22 ist von einer feuerfesten, wärmeisolierenden Schicht 25 umgeben. Diese Schicht 25 ist von einem Rohrabschnitt 26 umschlossen, der an die untere Wasserkammer 13 und an die Übergangsleitung 4 angeschweißt ist.Each connecting tube 22 is of a refractory, heat insulating layer 25 surrounded. This layer 25 is from enclosed a pipe section 26 which to the lower Water chamber 13 and welded to the transition line 4 is.

Das eintrittsseitige, sich erweiternde Ende der Verbindungsrohre 22 ist in der Innenauskleidung 5 der Übergangsleitung 4 gehalten und steht über eine Öffnung 27 in der Innenauskleidung 5 mit dem das Prozeßgas führenden Querschnitt der Übergangsleitung 4 in Verbindung.The entry-side, widening end of the Connection pipes 22 is in the inner lining 5 of the Transition line 4 is held and is via an opening 27 in the inner lining 5 with the leading process gas Cross section of the transition line 4 in connection.

Der Prozeßgaserzeuger 1 kann auch durch einen Gas oder Ölbrenner ersetzt werden. In diesem Fall kann der Wärmetauscher 2 als befeuerter Hilfkessel betrieben werden.The process gas generator 1 can also by a gas or Oil burner to be replaced. In this case, the Heat exchanger 2 are operated as a fired auxiliary boiler.

Claims (4)

Wärmetauscher zum Kühlen eines in einem Prozeßgaserzeuger (1) oder einem Reaktor erzeugten, heißen Prozeßgases mit mehreren von jeweils einem Außenrohr (12) umgebenen Kühlrohren (11), wobei jedes Kühlrohr (11) und jedes Außenrohr (12) an beiden Enden an je eine Wasserkammer (13, 14) zur Zuführung und Abführung eines Kühlmediums angeschweißt ist und die Wasserkammer (13, 14) aus einem massiven, streifenförmigen Stück besteht, in das entsprechend der Anzahl der Kühlrohre (11) in einem Abstand voneinander kreisförmige Vertiefungen (15) eingebracht sind, wobei jede Vertiefung (15) ein Kühlrohr (11) umgibt und einen Durchmesser aufweist, der gleich dem oder größer als der Innendurchmesser des Außenrohres (12) ist und die Vertiefung (15) im Bereich der Rohrenden der Kühlrohre (11) einen dünnen, ringförmigen Boden (16) mit einer geringen Restwanddicke aufweist, dadurch gekennzeichnet, daß an den Prozeßgaserzeuger (1) eine horizontale, das heiße Prozeßgas führende Übergangsleitung (4) angeschlossen ist, daß koaxial zu jedem Kühlrohr (11) ein Verbindungsrohr (22) angeordnet ist, das einerseits in das Kühlrohr (11) eingreift und andererseits von der Übergangsleitung (4) ausgeht.Heat exchanger for cooling one in a process gas generator (1) or a reactor with hot process gas several surrounded by an outer tube (12) Cooling tubes (11), each cooling tube (11) and each Outer tube (12) at each end to a water chamber (13, 14) for the supply and discharge of a cooling medium is welded and the water chamber (13, 14) from one massive, strip-shaped piece, in which according to the number of cooling tubes (11) at a distance circular depressions (15) are introduced from one another are, each recess (15) surrounding a cooling tube (11) and has a diameter equal to or larger than than the inner diameter of the outer tube (12) and Indentation (15) in the area of the pipe ends of the cooling pipes (11) a thin, annular bottom (16) with a small one Has residual wall thickness, characterized in that at the Process gas generator (1) a horizontal, the hot process gas leading transition line (4) is connected that A connecting tube (22) coaxial to each cooling tube (11) is arranged, on the one hand in the cooling tube (11) intervenes and on the other hand from the transition line (4) going out. Wärmetauscher nach Anspruch 1, dadurch gekennzeichnet, daß die Übergangsleitung (4) mit einer feuerfesten Innenauskleidung (5) versehen und jedes Verbindungsrohr (22) von einer feuerfesten Schicht (25) umgeben ist.Heat exchanger according to claim 1, characterized in that the transition line (4) with a refractory Provide inner lining (5) and each connecting pipe (22) is surrounded by a refractory layer (25). Wärmetauscher nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß ein Ende jedes Kühlrohres (11) in einer Rohrerweiterung (24) endet, die in den dünnen Boden (16) eingeschweißt ist und daß jeweils ein Verbindungsrohr (22) mit radialem und axialem Abstand in die Rohrerweiterung (24) hineinragt.Heat exchanger according to claim 1 or 2, characterized characterized in that one end of each cooling tube (11) in a Pipe extension (24) ends in the thin bottom (16) is welded in and that in each case a connecting tube (22) with radial and axial spacing in the pipe extension (24) protrudes. Wärmetauscher nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Übergangsleitung (4) mit einem Brenner verbunden ist.Heat exchanger according to one of claims 1 to 3, characterized characterized in that the transition line (4) with a Burner is connected.
EP99113759A 1998-07-22 1999-07-14 Heat exchanger for cooling hot process gas Expired - Lifetime EP0974803B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19833004 1998-07-22
DE19833004A DE19833004A1 (en) 1998-07-22 1998-07-22 Heat exchanger for cooling a hot process gas

Publications (3)

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EP0974803A2 true EP0974803A2 (en) 2000-01-26
EP0974803A3 EP0974803A3 (en) 2000-12-20
EP0974803B1 EP0974803B1 (en) 2003-01-15

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EP99113759A Expired - Lifetime EP0974803B1 (en) 1998-07-22 1999-07-14 Heat exchanger for cooling hot process gas

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US (1) US6148908A (en)
EP (1) EP0974803B1 (en)
JP (1) JP2000065487A (en)
AT (1) ATE231233T1 (en)
DE (2) DE19833004A1 (en)
ES (1) ES2191388T3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008033193A1 (en) * 2006-09-13 2008-03-20 Exxonmobil Chemical Patents Inc. Quench exchanger with extended surface on process side

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2274724A1 (en) * 1999-06-16 2000-12-16 Andre Landry Freeze-protected steam operated heat exchanger
CN1833152A (en) * 2003-08-06 2006-09-13 国际壳牌研究有限公司 Apparatus and process for cooling hot gas
US7780843B2 (en) 2005-07-08 2010-08-24 ExxonMobil Chemical Company Patents Inc. Method for processing hydrocarbon pyrolysis effluent
US8524070B2 (en) * 2005-07-08 2013-09-03 Exxonmobil Chemical Patents Inc. Method for processing hydrocarbon pyrolysis effluent
US7749372B2 (en) * 2005-07-08 2010-07-06 Exxonmobil Chemical Patents Inc. Method for processing hydrocarbon pyrolysis effluent
US7763162B2 (en) 2005-07-08 2010-07-27 Exxonmobil Chemical Patents Inc. Method for processing hydrocarbon pyrolysis effluent
US7465388B2 (en) * 2005-07-08 2008-12-16 Exxonmobil Chemical Patents Inc. Method for processing hydrocarbon pyrolysis effluent
DE102006003317B4 (en) * 2006-01-23 2008-10-02 Alstom Technology Ltd. Tube bundle heat exchanger
US8701748B2 (en) * 2006-02-17 2014-04-22 Exxonmobil Chemical Patents Inc. Outlet fitting for double pipe quench exchanger
IT1403894B1 (en) * 2010-12-29 2013-11-08 Eni Spa HEAT EXCHANGER FOR HOT GAS COOLING AND HEAT EXCHANGE SYSTEM
IT201800020257A1 (en) 2018-12-20 2020-06-20 Hexsol Italy Srl Joints for double-walled pipes in heat exchangers and heat exchangers and exchangers with such joints

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4445687A1 (en) 1994-12-21 1996-06-27 Borsig Babcock Ag Heat exchanger for cooling cracked gas
DE19622139A1 (en) 1994-12-21 1997-12-04 Borsig Babcock Ag Heat exchanger for cooling gaseous products from a cracker

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1590170A (en) * 1968-09-27 1970-04-13
US4026006A (en) * 1972-06-26 1977-05-31 Moebius Kurt Otto Method of forming a tube joint
NL7500554A (en) * 1975-01-17 1976-07-20 Shell Int Research HEAT EXCHANGER AND METHOD FOR COOLING HOT GASES.
DE2551195C3 (en) * 1975-11-14 1981-07-02 Schmidt'sche Heissdampf-Gesellschaft Mbh, 3500 Kassel Heat exchanger for cooling fission gases
JPS6042843B2 (en) * 1979-07-30 1985-09-25 東洋エンジニアリング株式会社 Waste heat boiler
GB2205373B (en) * 1987-05-23 1991-04-24 Mie Horo Co Ltd Method of making piping joints and joining tool
DE4000527A1 (en) * 1990-01-10 1991-07-11 Borsig Babcock Ag HEAT EXCHANGER FOR COOLING HOT REACTION GAS
DE4404068C1 (en) * 1994-02-09 1995-08-17 Wolfgang Engelhardt Heat exchanger
DE4416932C2 (en) * 1994-05-13 1997-10-16 Shg Schack Gmbh Heat exchanger
US5813453A (en) * 1996-06-01 1998-09-29 Deutsche Babcock-Borsig Ag Heat exchanger for cooling cracked gas
DE19645390C2 (en) * 1996-11-04 2000-01-13 Metallgesellschaft Ag Medium or high pressure heat exchanger with a heat-insulating cladding
US5690168A (en) * 1996-11-04 1997-11-25 The M. W. Kellogg Company Quench exchanger
US5816322A (en) * 1997-04-18 1998-10-06 Abb Lummus Global Inc. Quench cooler

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4445687A1 (en) 1994-12-21 1996-06-27 Borsig Babcock Ag Heat exchanger for cooling cracked gas
DE19622139A1 (en) 1994-12-21 1997-12-04 Borsig Babcock Ag Heat exchanger for cooling gaseous products from a cracker

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008033193A1 (en) * 2006-09-13 2008-03-20 Exxonmobil Chemical Patents Inc. Quench exchanger with extended surface on process side
US7758823B2 (en) 2006-09-13 2010-07-20 Exxonmobil Chemical Patents Inc. Quench exchange with extended surface on process side

Also Published As

Publication number Publication date
US6148908A (en) 2000-11-21
ES2191388T3 (en) 2003-09-01
DE59904023D1 (en) 2003-02-20
JP2000065487A (en) 2000-03-03
ATE231233T1 (en) 2003-02-15
EP0974803A3 (en) 2000-12-20
EP0974803B1 (en) 2003-01-15
DE19833004A1 (en) 2000-01-27

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