EP1139056A2 - Device for the inlet of hot gases in the tubes of a heating surface, welded to the end plate of a waste heat boiler - Google Patents

Device for the inlet of hot gases in the tubes of a heating surface, welded to the end plate of a waste heat boiler Download PDF

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Publication number
EP1139056A2
EP1139056A2 EP01107319A EP01107319A EP1139056A2 EP 1139056 A2 EP1139056 A2 EP 1139056A2 EP 01107319 A EP01107319 A EP 01107319A EP 01107319 A EP01107319 A EP 01107319A EP 1139056 A2 EP1139056 A2 EP 1139056A2
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EP
European Patent Office
Prior art keywords
inlet
tube
ring
tube plate
heating surface
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
EP01107319A
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German (de)
French (fr)
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EP1139056B1 (en
EP1139056A3 (en
Inventor
R.-U. Dr. Hatermann
Günther Beckesch
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Borsig GmbH
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Borsig GmbH
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Publication of EP1139056A3 publication Critical patent/EP1139056A3/en
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Publication of EP1139056B1 publication Critical patent/EP1139056B1/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
    • F28F19/002—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using inserts or attachments
    • 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 device for the entry of hot gas in a Pipe plate of a waste heat boiler welded heating surface pipes, in which each heating surface tube is an inlet tube that has a conically narrowing and has inlet located at a distance from the tube plate, engages and at the insulation between the inlet pipes on the outside of the tube plate is provided.
  • FIG. 2 detail A of the article "Reduction in consumption for large-scale NH 3 systems by heat recovery in the waste heat system", DE-Z. Chem.-Ing.-Techn. 96, (1984), No. 5, pp. 356-360.
  • the conically narrowing inlet of the inlet pipe is arranged at a predetermined distance from the pipe plate so that the zone of high heat flow density lies at a safe distance from the pipe plate. Between the sections of the inlet pipes projecting beyond the outside of the tube plate, a ramming compound is introduced as insulation.
  • EP 0 567 674 A1 describes a heat exchanger for cooling in one Coal gasification plant known synthesis gas, in which the gas inlet-side tube plate on its outside from a layer individual, arranged side by side, on the outer edges abutting cuboid spouts is covered.
  • the ceramic material manufactured grommets each have a conical inlet opening, which is in narrowed a pipe section that protrudes into a heating surface pipe. Farther is the free space between the underside of the grommets and the outside of the Pipe plate filled with ceramic mats. Again, when replacing individual grommets ceramic mats are removed in an undefined manner.
  • 1-3 are in a curved area 1a a tube plate 1 stepped bores 2 formed.
  • Heating surface tubes 3 introduced, by means of welds 4 to an assembly Tube plate heating surface tube are welded.
  • Inlet pipes 5 are suspended in the heating surface tubes 3.
  • the inlet pipes 5 have a conically narrowing inlet 5a. In given Distance from the inlet opening are in even circumferential distribution outside beads 5b provided. When hanging the inlet pipe these beads 5b are supported on the weld 4, so that the Inlet opening at a predetermined distance from the outside of the perforated plate 1 is held.
  • the axial length in corresponds approximately to the distance between the beads 5b at the inlet opening.
  • the Inner diameter is adapted to the diameter of the inlet pipe and the The outer diameter is chosen such that the insulating rings 6 in accordance with FIG touch hexagonal arrangement. It has been found that such Arrangement u. U. is sufficient for adequate protection of the insulating plate 1, even if there are no gussets 7 in the hexagonal arrangement Insulating material.
  • the ring Due to the elastic deformability of the wire mesh, the ring can over the conical narrowing or pushed over the beads and itself at the same time to the sweat 4 and to the outer surface of the Deform the inlet pipe.
  • the Inlet section 5a a straight cylindrical section.
  • a slotted support ring 8 is pushed onto the inlet pipe 5, the at the required distance from the inlet opening 5a with the Inlet pipe 5 is welded 8a. When the inlet pipe is attached, this is located Support ring 8 on the weld 4.
  • the ring-like insulating piece 9 made of ceramic material is in the Embodiment according to FIGS. 4-6 from an external Hexagonal section 9a and one engaging in the stepped bore 2 Cylinder section 9b.
  • the hexagonal section 9a preferably has an inner opening, which initially has a conical extension 9c.
  • section 9a allows an arrangement can be achieved, which according to FIG. 6 has no gusset, but the entire Protects the outside of the tube sheet 2.
  • the axial lengths of the rings 6 and 6 respectively Hexagonal sections 9a selected so that even with the step arrangement 1 or 4, the contact of the cylinder surfaces or the 4 or 6 is reached.
  • the positive support via beads can also be used of ceramic insulating pieces. It would then have to be on the Inner surface of the insulating pieces 9 formed only corresponding axial grooves his. The ceramic piece could then be rotated relatively after being pushed over, so that the beads are no longer under the grooves.
  • the Support ring according to the embodiments of FIGS. 4-6 also when in use of an insulating piece made of wire mesh. Rings out Wire mesh are z. B. from Max Rhodius GmbH & Co.,hotburger Metallstrickerei KG manufactured.
  • the inside of the tube sheet 1 is still one buffle plate 10 arranged at a distance.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Steam Or Hot-Water Central Heating Systems (AREA)
  • Thermal Insulation (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Heat Treatment Of Articles (AREA)

Abstract

The device is for the input of hot gas into heating surface pipes (3) welded with a pipe plate (1) of a heating boiler. In each heating surface pipe is an inlet pipe (5), which has a conically narrowing inlet (5a) located at a distance from the pipe plate. On the outside of the pipe plate is an insulation (6) between the inlet pipes. The inlet pipes are suspended inn the pipe plate and support on the pipe plate/heating surface pipe assembly. On each inlet pipe, prior to its suspension in the pipe plate, a ring-shaped insulation piece (6) is pushed.

Description

Die Erfindung betrifft eine Vorrichtung für den Eintritt von Heißgas in mit einer Rohrplatte eines Abhitzekessels verschweißten Heizflächenrohren, bei der in jedes Heizflächenrohr ein Einlaufrohr, das einen sich konisch verengenden und in Abstand von der Rohrplatte liegenden Einlauf aufweist, eingreift und bei der auf der Außenseite der Rohrplatte eine Isolierung zwischen den Einlaufrohren vorgesehen ist.The invention relates to a device for the entry of hot gas in a Pipe plate of a waste heat boiler welded heating surface pipes, in which each heating surface tube is an inlet tube that has a conically narrowing and has inlet located at a distance from the tube plate, engages and at the insulation between the inlet pipes on the outside of the tube plate is provided.

Eine solche Vorrichtung ist aus Abb. 2, Einzelheit A des Aufsatzes "Verbrauchssenkung für großtechnische NH3-Anlagen durch Wärmerückgewinnung im Abhitzesystem", DE-Z. Chem.-Ing.-Techn. 96, (1984), Nr. 5, S. 356-360 bekannt. Der sich konisch verengende Einlauf des Einlaufrohrs ist im vorgegebenen Abstand von der Rohrplatte angeordnet, damit die Zone der hohen Wärmestromdichte in einen sicheren Abstand von der Rohrplatte liegt. Zwischen den die Außenseite der Rohrplatte überragenden Abschnitten der Einlaufrohre ist als Isolierung eine Stampfmasse eingebracht.Such a device is shown in Fig. 2, detail A of the article "Reduction in consumption for large-scale NH 3 systems by heat recovery in the waste heat system", DE-Z. Chem.-Ing.-Techn. 96, (1984), No. 5, pp. 356-360. The conically narrowing inlet of the inlet pipe is arranged at a predetermined distance from the pipe plate so that the zone of high heat flow density lies at a safe distance from the pipe plate. Between the sections of the inlet pipes projecting beyond the outside of the tube plate, a ramming compound is introduced as insulation.

Bei Auswechseln einzelner Einlaufrohre muss bei der bekannten Vorrichtung die Stampfmasse in aufwendiger Weise entfernt werden.When replacing individual inlet pipes in the known device the ramming mass can be removed in a complex manner.

Aus der EP 0 567 674 A1 ist ein Wärmetauscher zum Kühlen von in einer Kohlevergasungsanlage erzeugtem Synthesegas bekannt, bei dem die gaseintrittsseitige Rohrplatte auf ihrer Außenseite von einer Schicht aus einzelnen, nebeneinander angeordneten, an den Außenkanten aneinander stoßenden quaderförmigen Tüllen bedeckt ist. Die aus Keramikmaterial gefertigtem Tüllen weisen jeweils eine konische Einlauföffnung auf, die sich in einen Rohrabschnitt verengt, der in ein Heizflächenrohr hineinragt. Weiterhin ist der freie Raum zwischen den Unterseiten der Tüllen und der Außenseite der Rohrplatte mit Keramikmatten ausgefüllt. Auch hier müssen bei Auswechseln einzelnder Tüllen in undefinierter Weise Keramikmatten entfernt werden.EP 0 567 674 A1 describes a heat exchanger for cooling in one Coal gasification plant known synthesis gas, in which the gas inlet-side tube plate on its outside from a layer individual, arranged side by side, on the outer edges abutting cuboid spouts is covered. The ceramic material manufactured grommets each have a conical inlet opening, which is in narrowed a pipe section that protrudes into a heating surface pipe. Farther is the free space between the underside of the grommets and the outside of the Pipe plate filled with ceramic mats. Again, when replacing individual grommets ceramic mats are removed in an undefined manner.

Es ist die Aufgabe der Erfindung, die Vorrichtung so zu gestalten, dass eine Zuordnung von Isoliermaterial zu den einzelnen Einlaufrohen gegeben ist.It is the object of the invention to design the device so that a Assignment of insulation material to the individual inlet pipes is given.

Diese Aufgabe wird dadurch gelöst, dass die Einlaufrohre in die Rohrplatte eingehängt sind und sich formschlüssig auf der Baugruppe Rohrplatte/Heizflächenrohr abstützen und dass auf jedes Einlaufrohr vor seinem Einhängen in die Rohrplatte ein ringartiges Isolierstück aufgeschoben ist.This object is achieved in that the inlet pipes in the tube plate are attached and form-fitting on the assembly Support the tube plate / heating surface tube and that on each inlet tube a ring-like insulating piece is slid onto its suspension in the tube plate is.

Bei der erfindungsgemäßen Vorrichtung kann bei Auswechseln eines Einlaufrohrs dieses aus der Rohrplatte mit dem ihm zugeordneten Isolierstück gezogen werden und ein neues Rohr ggfl. auch mit einem neuen Isolierstück eingehängt werden, ohne dass die Isolierung der anderen Einlaufrohre beeinträchtigt wird.In the device according to the invention, when replacing a Inlet pipe this from the tube plate with the insulating piece assigned to it be pulled and a new pipe if necessary. also with a new insulating piece be hooked in without the insulation of the other inlet pipes is affected.

Bei der entsprechenden Vorrichtung der EP 0 567 674 A1 ist kein metallisches Einlaufrohr vorgesehen, sondern ein zur Gänze aus Keramik ausgebildetes Einlaufrohr, das sich über eine Hinterschneidung auf der Außenseite der Rohrplatte abstützt. Die Isoliermatten aus Keramikwolle sind nicht in zuordbarer Weise zwischen die Einlaufrohre eingebracht.In the corresponding device of EP 0 567 674 A1 there is no metallic Inlet pipe provided, but a completely made of ceramic Inlet pipe that extends over an undercut on the outside of the Pipe plate supported. The insulating mats made of ceramic wool are not in introduced in an assignable manner between the inlet pipes.

Die Unteransprüche betreffen vorteilhafte Ausgestaltungen der erfindungsgemäßen Vorrichtung.The subclaims relate to advantageous refinements of device according to the invention.

Die Erfindung soll nun anhand der beigefügten Figuren näher erläutert werden. Es zeigt:

Fig. 1
einen Vertikalschnitt durch einen gewölbten Bereich eines Rohrbodens mit eingehängten Heizflächenrohren einer ersten Ausführungsform der erfindungsgemäßen Vorrichtung, wobei die Isolierstücke als Ringe aus Drahtgestrick ausgebildet sind,
Fig. 2
einen Horizontalschnitt längs der Linie II-II in Fig. 1,
Fig. 3
eine Aufsicht auf die Einlaufrohre in Einströmrichtung gesehen,
Fig. 4
eine Ausführungsform vergleichbar Fig. 1 einer weiteren Ausführungsform der erfindungsgemäßen Vorrichtung, wobei die Isolierstücke als Keramikringe ausgebildet sind,
Fig. 5
einen Horizontalschnitt in Blickrichtung der Pfeile V-V in Fig. 1 und
Fig. 6
eine Aufsicht auf die Einlaufrohre.
The invention will now be explained in more detail with reference to the accompanying figures. It shows:
Fig. 1
3 shows a vertical section through a curved area of a tube sheet with suspended heating surface tubes of a first embodiment of the device according to the invention, the insulating pieces being designed as rings made of wire mesh,
Fig. 2
2 shows a horizontal section along the line II-II in FIG. 1,
Fig. 3
seen a top view of the inlet pipes in the inflow direction,
Fig. 4
1 an embodiment comparable to FIG. 1 of a further embodiment of the device according to the invention, the insulating pieces being designed as ceramic rings,
Fig. 5
a horizontal section in the direction of arrows VV in Fig. 1 and
Fig. 6
a supervision of the inlet pipes.

Bei der Ausführungsform gemäß Fig. 1 - 3 sind in einem gewölbten Bereich 1a einer Rohrplatte 1 gestufte Bohrungen 2 ausgebildet. In die Bohrungen 2 sind Heizflächenrohre 3 eingeführt, die mittels Schweißungen 4 zu einer Baugruppe Rohrboden-Heizflächenrohr verschweißt sind.1-3 are in a curved area 1a a tube plate 1 stepped bores 2 formed. In the holes 2 are Heating surface tubes 3 introduced, by means of welds 4 to an assembly Tube plate heating surface tube are welded.

In die Heizflächenrohre 3 sind Einlaufrohre 5 eingehängt. Die Einlaufrohre 5 weisen einen sich konisch verengenden Einlauf 5a auf. In vorgegebenem Abstand von der Einlauföffnung sind in gleichmäßiger Umfangsverteilung nach außen vorragende Sicken 5b vorgesehen. Beim Einhängen des Einlaufrohres stützen sich diese Sicken 5b auf der Schweißung 4 ab, so dass die Einlauföffnung in vorgegebenem Abstand von der Außenseite der Lochplatte 1 gehalten wird.Inlet pipes 5 are suspended in the heating surface tubes 3. The inlet pipes 5 have a conically narrowing inlet 5a. In given Distance from the inlet opening are in even circumferential distribution outside beads 5b provided. When hanging the inlet pipe these beads 5b are supported on the weld 4, so that the Inlet opening at a predetermined distance from the outside of the perforated plate 1 is held.

Vor dem Einhängen der Einlaufrohre 5 ist auf das einzelneEinlaufrohr ein Isolierring 6 aus einem Drahtgewirk aufgeschoben, dessen axiale Länge in etwa dem Abstand der Sicken 5b an der Einlauföffnung entspricht. Der Innendurchmesser ist dem Durchmesser des Einlaufrohrs angepaßt und der Außendurchmesser ist so gewählt, dass sich die Isolierringe 6 gemäß Fig. 3 in hexagonaler Anordnung berühren. Es hat sich herausgestellt, dass eine solche Anordnung u. U. für einen hinreichenden Schutz der Isolierplatte 1 ausreicht, auch wenn sich in den Zwickeln 7 der hexagonalen Anordnung kein Isoliermaterial befindet.Before hanging the inlet pipes 5 on the individual inlet pipe Insulating ring 6 pushed out of a wire mesh, the axial length in corresponds approximately to the distance between the beads 5b at the inlet opening. The Inner diameter is adapted to the diameter of the inlet pipe and the The outer diameter is chosen such that the insulating rings 6 in accordance with FIG touch hexagonal arrangement. It has been found that such Arrangement u. U. is sufficient for adequate protection of the insulating plate 1, even if there are no gussets 7 in the hexagonal arrangement Insulating material.

Infolge der elastischen Verformbarkeit des Drahtgestricks kann der Ring über die konische Verengung oder über die Sicken geschoben werden und sich gleichzeitig zur Anlage an die Schweiß 4 und an die Außenfläche des Einlaufrohres verformen. Wie in der aus Abb. 2 der DE-Z. bekannten Weise ist am unteren Ende des Einlaufrohrs vor 5 ein sich konisch erweiternder Auslaufabschnitt 5c vorgesehen, dessen Auslaufdurchmesser dem Innendurchmesser des Heizflächenrohres entspricht.Due to the elastic deformability of the wire mesh, the ring can over the conical narrowing or pushed over the beads and itself at the same time to the sweat 4 and to the outer surface of the Deform the inlet pipe. As in the from Fig. 2 of the DE-Z. known way at the lower end of the inlet pipe in front of 5 a conically widening Outlet section 5c provided, the outlet diameter of the Corresponds to the inside diameter of the heating surface tube.

Bei der in den Fig. 4 - 6 gezeigten Ausführungsform schließt sich an den Einlaufabschnitt 5a ein geradzylindrischer Abschnitt an. Zur formschlüssigen Abstützung ist auf das Einlaufrohr 5 ein geschlitzter Stützring 8 aufgeschoben, der in dem erforderlichen Abstand von der Einlauföffnung 5a mit dem Einlaufrohr 5 verschweißt 8a ist. Bei eingehängtem Einlaufrohr liegt dieser Stützring 8 auf der Schweiße 4 auf.In the embodiment shown in FIGS. 4-6, the Inlet section 5a a straight cylindrical section. For positive A slotted support ring 8 is pushed onto the inlet pipe 5, the at the required distance from the inlet opening 5a with the Inlet pipe 5 is welded 8a. When the inlet pipe is attached, this is located Support ring 8 on the weld 4.

Das ringartige Isolierstück 9 aus Keramikmaterial besteht bei der Ausführungsform gemäß Fig. 4 - 6 aus einem außenliegenden Hexagonalabschnitt 9a und einem in die gestufte Bohrung 2 eingreifenden Zylinderabschnitt 9b.The ring-like insulating piece 9 made of ceramic material is in the Embodiment according to FIGS. 4-6 from an external Hexagonal section 9a and one engaging in the stepped bore 2 Cylinder section 9b.

Wegen der Verwendung eines starren Keramikmaterials muss das Isolierstück 9 vor Einhängen der Rohre vom Abströmende 5c her auf das Einlaufrohr 5 aufgeschoben werden und erst dann kann der Stützring 8 aufgeschweißt werden. Vorzugsweise weist der Hexagonalabschnitt 9a eine Innenöffnung auf, die am Anfang eine konische Erweiterung 9c aufweist.Because of the use of a rigid ceramic material, the insulating piece 9 before hanging the pipes from the outflow end 5c onto the inlet pipe 5 be pushed on and only then can the support ring 8 be welded on become. The hexagonal section 9a preferably has an inner opening, which initially has a conical extension 9c.

Durch die hexagonale Gestaltung des Abschnittes 9a kann eine Anordnung erreicht werden, die gemäß Fig. 6 keine Zwickel aufweist, sondern die gesamte Außenseite des Rohrbodens 2 schützt.The hexagonal design of section 9a allows an arrangement can be achieved, which according to FIG. 6 has no gusset, but the entire Protects the outside of the tube sheet 2.

Da die Bohrungen 2 und damit die Einlauföffnungen der Einlaufrohre 5 nicht in einer Ebene liegen, sondern in gestuften Ebenen, liegen die freien Ringflächen der Einsatzstücke 6 und die hexagonalen Endflächen der Isolierstücke 9 nicht in einer Ebene. Daher sind die axialen Längen der Ringe 6 bzw. der Hexagonalabschnitte 9a so gewählt, dass auch bei der Stufenanordnung gemäß Fig. 1 bzw. 4 die Anlage der Zylinderflächen bzw. der Hexagonalseitenflächen gemäß Fig. 4 bzw. 6 erreicht wird.Since the bores 2 and thus the inlet openings of the inlet pipes 5 are not in the free ring surfaces lie on one level, but in stepped levels the insert pieces 6 and the hexagonal end faces of the insulating pieces 9 are not in one level. Therefore, the axial lengths of the rings 6 and 6 respectively Hexagonal sections 9a selected so that even with the step arrangement 1 or 4, the contact of the cylinder surfaces or the 4 or 6 is reached.

Die formschlüssige Abstützung über Sicken kann auch bei der Verwendung von keramischen Isolierstücken eingesetzt werden. Es müssten dann auf der Innenfläche der Isolierstücke 9 nur entsprechende Axialerillen ausgebildet sein. Das Keramikstück könnte dann nach Überschub relativ verdreht werden, so dass die Sicken nicht mehr unter den Rillen liegen. Ebenso könnte der Stützring gemäß der Ausführungsformen der Fig. 4 - 6 auch bei Verwendung eines Isolierstücks aus Drahtgestrick eingesetzt werden. Ringe aus Drahtgestrick werden z. B. von der Firma Max Rhodius GmbH & Co., Weißenburger Metallstrickerei KG gefertigt.The positive support via beads can also be used of ceramic insulating pieces. It would then have to be on the Inner surface of the insulating pieces 9 formed only corresponding axial grooves his. The ceramic piece could then be rotated relatively after being pushed over, so that the beads are no longer under the grooves. Likewise, the Support ring according to the embodiments of FIGS. 4-6 also when in use of an insulating piece made of wire mesh. Rings out Wire mesh are z. B. from Max Rhodius GmbH & Co., Weißenburger Metallstrickerei KG manufactured.

Bei beiden Ausführungsformen ist der Innenseite des Rohrbodens 1 noch ein auf Abstand angeordnetes Buffle-Blech 10 zugeordnet.In both embodiments, the inside of the tube sheet 1 is still one buffle plate 10 arranged at a distance.

Claims (8)

Vorrichtung für den Eintritt von Heißgas in mit einer Rohrplatte eines Abhitzekessels verschweißten Heizflächenrohren, bei der in jedes Heizflächenrohr ein Einlaufrohr, das einen sich konisch verengenden und in Abstand von der Rohrplatte liegenden Einlauf aufweist, eingreift und bei der auf der Außenseite der Rohrplatte eine Isolierung zwischen den Einlaufrohren vorgesehen ist,
dadurch gekennzeichnet, dass die Einlaufrohre (5) in die Rohrplatte (1) eingehängt sind und sich formschlüssig (5b; 8) auf der Baugruppe RohrplattelHeizflächenrohr (1; 3) abstützen und dass auf jedes Einlaufrohr (5) vor seinem Einhängen in die Rohrplatte ein ringartiges Isolierstück (6; 9) aufgeschoben ist.Device for the entry of hot gas into heating surface tubes welded to a tube plate of a waste heat boiler, in which an inlet tube, which has an inlet which narrows conically and is spaced apart from the tube plate, engages in each heating surface tube and in which there is insulation between on the outside of the tube plate the inlet pipes is provided,
characterized in that the inlet pipes (5) are hooked into the tube plate (1) and are positively (5b; 8) supported on the tube plate / heating tube tube (1; 3) and that each inlet tube (5) is attached to the tube plate before it is hooked in ring-like insulating piece (6; 9) is pushed on. Vorrichtung nach Anspruch 1,
dadurch gekennzeichnet, dass für die formschlüssige Abstützung des Einlaufrohrs (5) dieses mit nach außen gerichteten Sicken (5a) versehen ist.Device according to claim 1,
characterized in that for the positive support of the inlet pipe (5) it is provided with outwardly directed beads (5a). Vorrichtung nach Anspruch 1,
dadurch gekennzeichnet, dass für die formschlüssige Abstützung des Einlaufsrohrs (5) auf diesem ein Stützring (8) aufgeschweißt ist.Device according to claim 1,
characterized in that a support ring (8) is welded onto the inlet pipe (5) for the form-fitting support thereof. Vorrichtung nach mindestens einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet, dass auf das Einlaufrohr (5) ein zylindrischer Ring (6) aus einem hoch warmfesten metallischen oder keramischen Fasermaterial aufgeschoben ist.Device according to at least one of claims 1 to 3,
characterized in that a cylindrical ring (6) made of a highly heat-resistant metallic or ceramic fiber material is pushed onto the inlet pipe (5). Vorrichtung nach Anspruch 4,
dadurch gekennzeichnet, dass der zylindrische Isolierring (6) aus einem Drahtgestrick besteht. Device according to claim 4,
characterized in that the cylindrical insulating ring (6) consists of a wire mesh. Vorrichtung nach einem der Ansprüche 1 bis 3,
dadurch gekennzeichnet, dass auf das Einlaufrohr ein ringartiges Isolierstück (9) aus einem Vollkeramikmaterial aufgeschoben ist.Device according to one of claims 1 to 3,
characterized in that a ring-like insulating piece (9) made of an all-ceramic material is pushed onto the inlet pipe. Vorrichtung nach Anspruch 6,
dadurch gekennzeichnet, dass das ringartige Isolierstück (9) aus einem außenliegenden Hexagonalabschnitt (9a) und einem in Strömungsrichtung der Heißgase gesehen daran anschließenden geradzylindrischen Abschnitt (9b) besteht.Device according to claim 6,
characterized in that the ring-like insulating piece (9) consists of an external hexagonal section (9a) and a straight cylindrical section (9b) adjoining it in the flow direction of the hot gases. Vorrichtung nach einem der Ansprüche 1 bis 7,
dadurch gekennzeichnet, dass die Rohrplatte (1) einen gegen die Einströmrichtung des Heißgases gewölbten Bereich (1a) aufweist.Device according to one of claims 1 to 7,
characterized in that the tube plate (1) has a region (1a) that is curved against the inflow direction of the hot gas.
EP01107319A 2000-03-28 2001-03-23 Device for the inlet of hot gases in the tubes of a heating surface, welded to the end plate of a waste heat boiler Expired - Lifetime EP1139056B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10015343A DE10015343C2 (en) 2000-03-28 2000-03-28 Heat recovery boiler with heating surface tubes welded in a tube plate
DE10015343 2000-03-28

Publications (3)

Publication Number Publication Date
EP1139056A2 true EP1139056A2 (en) 2001-10-04
EP1139056A3 EP1139056A3 (en) 2003-08-27
EP1139056B1 EP1139056B1 (en) 2004-07-07

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EP01107319A Expired - Lifetime EP1139056B1 (en) 2000-03-28 2001-03-23 Device for the inlet of hot gases in the tubes of a heating surface, welded to the end plate of a waste heat boiler

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EP (1) EP1139056B1 (en)
AT (1) ATE270768T1 (en)
DE (2) DE10015343C2 (en)
DK (1) DK1139056T3 (en)
ES (1) ES2223670T3 (en)
PT (1) PT1139056E (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007016742A1 (en) * 2005-08-09 2007-02-15 Eestech, Inc. A distributor for a flowable medium
AU2006279260B2 (en) * 2005-08-09 2010-06-17 Eestech, Inc. A distributor for a flowable medium
WO2010139852A1 (en) * 2009-06-04 2010-12-09 Metso Power Oy A method for supplying combustion air to a flue gas air preheater, a preheating apparatus, and an air guide sleeve

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007016742A1 (en) * 2005-08-09 2007-02-15 Eestech, Inc. A distributor for a flowable medium
AU2006279260B2 (en) * 2005-08-09 2010-06-17 Eestech, Inc. A distributor for a flowable medium
CN101272836B (en) * 2005-08-09 2011-03-23 伊斯泰克股份有限公司 A distributor for a flowable medium
US8291968B2 (en) 2005-08-09 2012-10-23 Eestech, Inc. Distributor for a flowable medium
WO2010139852A1 (en) * 2009-06-04 2010-12-09 Metso Power Oy A method for supplying combustion air to a flue gas air preheater, a preheating apparatus, and an air guide sleeve
CN102460021A (en) * 2009-06-04 2012-05-16 美特索电力公司 A method for supplying combustion air to a flue gas air preheater, a preheating apparatus, and an air guide sleeve
CN102460021B (en) * 2009-06-04 2014-11-26 维美德电力有限公司 A method for supplying combustion air to a flue gas air preheater, a preheating apparatus, and an air guide sleeve

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ATE270768T1 (en) 2004-07-15
ES2223670T3 (en) 2005-03-01
DE10015343C2 (en) 2002-05-23
PT1139056E (en) 2004-11-30
EP1139056B1 (en) 2004-07-07
EP1139056A3 (en) 2003-08-27
DE50102777D1 (en) 2004-08-12
DE10015343A1 (en) 2001-10-11

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