EP0469306A1 - Installation of a heating surface of a steam generator in a waste gas channel - Google Patents

Installation of a heating surface of a steam generator in a waste gas channel Download PDF

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Publication number
EP0469306A1
EP0469306A1 EP91110811A EP91110811A EP0469306A1 EP 0469306 A1 EP0469306 A1 EP 0469306A1 EP 91110811 A EP91110811 A EP 91110811A EP 91110811 A EP91110811 A EP 91110811A EP 0469306 A1 EP0469306 A1 EP 0469306A1
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EP
European Patent Office
Prior art keywords
heating surface
module according
surface module
horizontal
stiffening
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Granted
Application number
EP91110811A
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German (de)
French (fr)
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EP0469306B1 (en
Inventor
Garabid Najden Dipl.-Ing. Ohanian
Wolfgang Dipl.-Ing. Haag
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Waagner Biro AG
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Waagner Biro AG
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B37/00—Component parts or details of steam boilers
    • F22B37/001—Steam generators built-up from pre-fabricated elements

Definitions

  • the invention relates to a heating surface module for heat exchangers arranged in heating surface shafts, in particular for heating surfaces of exhaust-gas-heated steam generators, preferably after gas turbines, in which the steam is generated within pipes which, for example, the exhaust gas flows around from bottom to top.
  • the US-PS 3,805,745 discloses the assembly of a heating boiler from individual pipes and other components by screw connections and rolling, the assembly effort is certainly not small. Added to this is the large number of components to be assembled or transported.
  • the invention has set itself the task of simplifying the assembly by creating modules that are largely assembled according to the maximum transport size of a truck in the workshop and have sufficient rigidity for transport, so that transport damage is avoided despite the loss of the transport supports can.
  • the invention is characterized in that the individual heating surface tubes are arranged in a frame on the workshop side, which together with the frame constitute a transportable, stiffened and ready-to-install unit, the horizontal stiffening of which together with the horizontal stiffeners of the frames adjacent during assembly form a horizontal supporting structure, which carries the entire tube bundle held in tube plates and which is designed as an internal pressure and earthquake support for the heating surface shaft.
  • a calculation when determining the transport weight showed an unexpectedly high saving in steel construction weight in the order of 30%.
  • FIGS. 1 to 5 show the invention, for example and schematically, in the connected FIGS. 1 to 5.
  • Fig. 1 shows a heating surface shaft in elevation.
  • Fig. 2 shows in an axometric image a load-bearing ceiling, which is formed from several heating surface modules.
  • 3 shows a heating surface module on a larger scale, and
  • FIGS. 4 and 5 show the connection of two heating surface modules in two versions.
  • a heating surface shaft 6 is shown in elevation by two tube bundles 1 are each attached to a horizontal support structure 4.
  • the exhaust gas flows around the tube bundle such that the horizontal support structure 4 is arranged on the downstream side of the tube bundle 1, so that the support structure 4 is heated less strongly by the exhaust gas flowing through it.
  • a cleaning opening 12 or a service opening is provided between the two heating surfaces, through which an entry into the heating surface shaft 6 is possible.
  • a tube bundle 1 with a horizontal supporting structure 4 is shown enlarged on a somewhat larger scale, the tubes that connect the individual tube plates 5 are not shown, so that the frame 2 with its horizontal stiffening 3 as horizontal Support structure 4 can be seen.
  • the individual tube plates 5 with the stiffening 3 are connected by horizontal diagonal bars 8 and by vertical diagonal bars 9 (FIG. 3) to form a spatial framework, the entire ceiling being composed of, for example, 5 building blocks which are arranged next to one another.
  • This also shows a space saving, since the rigid ceiling construction is only slightly higher than the tube bundle 1, but is in any case smaller than a ceiling construction with suspensions for the tube bundle arranged below. It is also advantageous if the greatest pipe length of the tube bundle 1 corresponds to the width or length of the installation shaft, so that pipe extensions are not necessary at the construction site.
  • the adjacent frame parts 2 are marked with 2 'and the adjacent horizontal stiffening 3 with 3', so that the spatial effect of the ceiling structure can be recognized in the form of a spatial framework.
  • a single block is shown in oblique view, from which it can be seen that the entire block is formed by a framework structure, the horizontal support structure 4 and the tube bundle 5 connecting the tube bundle 1 the
  • stiffening profiles 7 are provided in the extension of the tube plate 5, which are thus arranged transversely to the tube bundle 1 and form a support grate after connection to adjacent heating surface modules, the individual grate bars of which are connected by the horizontal stiffeners 3 .
  • the individual stiffening profiles 7 can be connected by a butt weld 10 or, as shown in FIG. 5, by a butt plate construction 11.
  • the assembly of the individual tube packs is limited only to the correct installation position and the correct connection of the individual heating surface modules, so that the use of highly qualified installation staff can be partially saved for the installation of the boiler.
  • the size of the individual heating surface modules is therefore matched to the size of the wagon or truck used and thus forms an assembly unit that is connected to the construction site practically without waste.
  • a building block has thus become transport-resistant and, by assembling it with a similar type of heating panel package with an integrated gas-permeable ceiling, has become more valuable, since the gas-permeable ceiling also has stiffening effects which have an effect on earthquake resistance and internal pressure stiffening, which normally require additional construction.
  • the suspension is also integrated in the "heating surface package", so that one can speak of a compact module.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

To simplify the assembly of a waste heat steam generator, a workshop-mounted heating surface module is presented, the size of which is defined by the possible transport width, length and height. The heating surface module consists of a tube bundle 1 which is held in tube plates 5 which receive the necessary transport reinforcement by means of horizontal reinforcements 3 in the form of a framework, it being possible for additional reinforcement profiles 7 to be provided on the tube plates 5 to form a load-bearing ceiling construction made of heating surface modules arranged next to one another. Additionally, a vertical reinforcement by means of diagonal struts 9 can also be arranged. The ceiling construction also serves as internal pressure and earthquake support of the heating surface channel 6. <IMAGE>

Description

Die Erfindung betrifft einen Heizflächenbaustein für in Heizflächenschächten angeordnete Wärmetauscher, insbesondere für Heizflächen von abgasbeheizten Dampferzeugern, vorzugsweise nach Gasturbinen, bei welchen der Dampf innerhalb von Rohren erzeugt wird, die beispielsweise von unten nach oben vom Abgas umströmt sind. Es ist aus der DE-AS 23 13 565 bekannt, Heizflächenpakete in Transportgrößen zu verpacken und auf der Baustelle in den vorbereiteten Heizflächenschichten zu montieren. Hiebei fällt sehr viel Verpackungsmaterial an, das je nach Transportart etwa 20% des Transportgewichtes ausmachen kann und eventuell auch rücktransportiert wird. Abgesehen von dem nur für den Transport benötigten Material fällt auch an der Baustelle eine aufwendige Montagearbeit in Abhängigkeit von der Größe der Montagestücke an, die sich natürlich auf den Herstellungspreis auswirkt. Dazu kommen noch Aufhängeeinrichtungen, da die Heizflächen meistens an der Decke aufgehängt werden. Ferner müssen, insbesondere bei Druckfeuerungen, Innendruckabstützungen des fertigen Abhitzekessels und gegebenenfalls auch Erdbebenabstützungen montiert werden, so daß nicht nur hohe Montagekosten sondern auch lange Montagezeiten entstehen. Aus der DE-OS 23 04 532 ist es bekannt, vorgefertigte Heizflächenpakete aufeinanderzustapeln und so einen Dampferzeuger aus Ringschüssen zusammenzubauen. Diese Bauweise hat den Nachteil, relativ unförmig zu sein, wobei die maximale Baugröße durch das Ladeprofil des Beförderungsmittels mehr oder weniger vorgegeben ist.The invention relates to a heating surface module for heat exchangers arranged in heating surface shafts, in particular for heating surfaces of exhaust-gas-heated steam generators, preferably after gas turbines, in which the steam is generated within pipes which, for example, the exhaust gas flows around from bottom to top. It is known from DE-AS 23 13 565 to pack heating surface packages in transport sizes and to assemble them in the prepared heating surface layers on the construction site. Hiebei accumulates a lot of packaging material, which, depending on the type of transport, can make up around 20% of the transport weight and may also be transported back. In addition to the material that is only required for transport, there is also a complex assembly work at the construction site depending on the size of the assembly pieces, which of course has an impact on the production price. There are also hanging devices, since the heating surfaces are mostly hung from the ceiling. Furthermore, especially in the case of pressure furnaces, internal pressure supports of the finished waste heat boiler and possibly earthquake supports must be installed, so that not only high installation costs but also long installation times arise. From DE-OS 23 04 532 it is known to stack prefabricated heating surface packages on top of one another and thus to assemble a steam generator from ring sections. This design has the disadvantage of being relatively bulky, the maximum size being more or less predetermined by the loading profile of the means of transport.

Die US-PS 3,805,745 offenbart die Montage eines Heizungskessels aus Einzelrohren und anderen Bestandteilen durch Schraubverbindungen und Einwalzen, wobei der Montageaufwand sicher nicht gering ist. Dazu kommt noch die Vielzahl der zu montierenden bzw. zu transportierenden Bauteile. Die Erfindung hat es sich zur Aufgabe gestellt, die Montage zu vereinfachen, indem Bausteine geschaffen werden, die entsprechend der maximalen Transportgröße eines LKW's weitgehend in der Werkstätte montiert werden und eine für den Transport genügende Steifigkeit aufweisen, so daß Transportschäden trotz Wegfall der Transportabstützungen vermieden werden können.The US-PS 3,805,745 discloses the assembly of a heating boiler from individual pipes and other components by screw connections and rolling, the assembly effort is certainly not small. Added to this is the large number of components to be assembled or transported. The invention has set itself the task of simplifying the assembly by creating modules that are largely assembled according to the maximum transport size of a truck in the workshop and have sufficient rigidity for transport, so that transport damage is avoided despite the loss of the transport supports can.

Die Erfindung ist dadurch gekennzeichnet, daß werkstattseitig die einzelnen Heizflächenrohre in einem Rahmen angeordnet sind, die zusammen mit dem Rahmen eine transportfähige, versteifte und einbaufertige Einheit darstellen, deren horizontale Versteifung zusammen mit den horizontalen Versteifungen der bei der Montage benachbarten Rahmen eine horizontale Tragkonstruktion bilden, die das gesamte in Rohrplatten gehaltene Rohrbündel trägt und die als Innendruck- und Erdbebenabstützung des Heizflächenschachtes ausgebildet ist. Eine Durchrechnung bei der Bestimmung des Transportgewichtes ergab eine wider Erwarten hohe Einsparung an Stahlbaugewicht in der Größenordnung von 30%.The invention is characterized in that the individual heating surface tubes are arranged in a frame on the workshop side, which together with the frame constitute a transportable, stiffened and ready-to-install unit, the horizontal stiffening of which together with the horizontal stiffeners of the frames adjacent during assembly form a horizontal supporting structure, which carries the entire tube bundle held in tube plates and which is designed as an internal pressure and earthquake support for the heating surface shaft. A calculation when determining the transport weight showed an unexpectedly high saving in steel construction weight in the order of 30%.

Weitere Ausgestaltungen der Erfindung sind in den Unteransprüchen 2 bis 6 angegeben.Further refinements of the invention are specified in subclaims 2 to 6.

Die Erfindung ist in den angeschlossenen Fig. 1 bis 5 beispielsweise und schematisch dargestellt. Fig. 1 zeigt einen Heizflächenschacht im Aufriß. Fig. 2 zeigt in einem axometrischen Bild eine tragende Decke, die aus mehreren Heizflächenbausteinen gebildet ist. Fig. 3 zeigt im größeren Maßstab einen Heizflächenbaustein, und Fig. 4 und 5 zeigen in zwei Ausführungen die Verbindung zweier Heizflächenbausteine.The invention is shown, for example and schematically, in the connected FIGS. 1 to 5. Fig. 1 shows a heating surface shaft in elevation. Fig. 2 shows in an axometric image a load-bearing ceiling, which is formed from several heating surface modules. 3 shows a heating surface module on a larger scale, and FIGS. 4 and 5 show the connection of two heating surface modules in two versions.

In Fig. 1 ist ein Heizflächenschacht 6 im Aufriß dargestellt, indem zwei Rohrbündel 1 jeweils an einer horizontalen Tragkonstruktion 4 befestigt sind. Die Rohrbündel werden so vom Abgas umströmt, daß die horizontale Tragkonstruktion 4 an der Abströmseite des Rohrbündels 1 angeordnet ist, so daß die Tragkonstruktion 4 weniger stark durch das durchströmende Abgas beheizt wird. Zwischen den beiden Heizflächen ist eine Reinigungsöffnung 12 bzw. eine Serviceöffnung vorgesehen, über welche ein Einstieg in den Heizflächenschacht 6 möglich ist. In Fig. 2 ist im etwas größeren Maßstab im Schrägriß ein Rohrbündel 1 mit einer horizontalen Tragkonstruktion 4 vergrößert dargestellt, wobei die Rohre, die die einzelnen Rohrplatten 5 miteinander verbinden, nicht dargestellt sind, so daß der Rahmen 2 mit seiner horizontalen Versteifung 3 als horizontale Tragkonstruktion 4 ersichtlich ist. Die einzelnen Rohrplatten 5 mit der Versteifung 3 sind durch horizontale Diagonalstäbe 8 und durch vertikale Diagonalstäbe 9 (Fig. 3) zu einem räumlichen Fachwerk verbunden, wobei die gesamte Decke aus beispielsweise 5 Bausteinen zusammengesetzt ist, die nebeneinander angeordnet sind. Hier zeigt sich auch eine Platzersparnis, indem die steife Deckenkonstruktion nur geringfügig höher als das Rohrbündel 1 ist, aber auf jeden Fall kleiner als eine Deckenkonstruktion mit Aufhängungen für das unterhalb angeordnete Rohrbündel ist. Es ist ferner günstig, wenn die größte Rohrlänge des Rohrbündels 1 mit der Breite oder Länge des Einbauschachtes übereinstimmt, so daß Rohrverlängerungen an der Baustelle nicht notwendig sind. Die benachbarten Rahmenteile 2 sind mit 2' und die benachbarte horizontale Versteifung 3 ist mit 3' gekennzeichnet, so daß die räumliche Wirkung der Deckenkonstruktion in Form eines räumlichen Fachwerkes erkennbar ist.In Fig. 1, a heating surface shaft 6 is shown in elevation by two tube bundles 1 are each attached to a horizontal support structure 4. The exhaust gas flows around the tube bundle such that the horizontal support structure 4 is arranged on the downstream side of the tube bundle 1, so that the support structure 4 is heated less strongly by the exhaust gas flowing through it. A cleaning opening 12 or a service opening is provided between the two heating surfaces, through which an entry into the heating surface shaft 6 is possible. In Fig. 2, a tube bundle 1 with a horizontal supporting structure 4 is shown enlarged on a somewhat larger scale, the tubes that connect the individual tube plates 5 are not shown, so that the frame 2 with its horizontal stiffening 3 as horizontal Support structure 4 can be seen. The individual tube plates 5 with the stiffening 3 are connected by horizontal diagonal bars 8 and by vertical diagonal bars 9 (FIG. 3) to form a spatial framework, the entire ceiling being composed of, for example, 5 building blocks which are arranged next to one another. This also shows a space saving, since the rigid ceiling construction is only slightly higher than the tube bundle 1, but is in any case smaller than a ceiling construction with suspensions for the tube bundle arranged below. It is also advantageous if the greatest pipe length of the tube bundle 1 corresponds to the width or length of the installation shaft, so that pipe extensions are not necessary at the construction site. The adjacent frame parts 2 are marked with 2 'and the adjacent horizontal stiffening 3 with 3', so that the spatial effect of the ceiling structure can be recognized in the form of a spatial framework.

In Fig. 3 ist ein einzelner Baustein im Schrägriß dargestellt, aus dem ersichtlich ist, daß der ganze Baustein von einer Fachwerkskonstruktion gebildet ist, deren horizontale Tragkonstruktion 4 und das die Rohrplatten 5 verbindende Rohrbündel 1 dieIn Fig. 3, a single block is shown in oblique view, from which it can be seen that the entire block is formed by a framework structure, the horizontal support structure 4 and the tube bundle 5 connecting the tube bundle 1 the

notwendige Transportversteifung verschafft, wobei in einzelnen Abschnitten auch vertikale Diagonalstäbe bzw. Diagonalstäbe in vertikalen Ebenen angeordnet werden können. Es ist hiebei ersichtlich, daß am abstromseitigen Ende des Rohrbündels 1 Versteifungsprofile 7 in der Verlängerung der Rohrplatte 5 vorgesehen sind, die somit quer zum Rohrbündel 1 angeordnet sind und nach Verbindung mit benachbarten Heizflächenbausteinen einen Trägerrost bilden, dessen einzelne Roststäbe durch die Horizontalversteifungen 3 verbunden sind. Die Verbindung der einzelnen Versteifungsprofile 7 kann, wie in Fig. 4 dargestellt, durch eine Stumpfschweißnaht 10 oder, wie in Fig. 5 gezeigt, durch eine Stoßblechkonstruktion 11 erfolgen.provides necessary transport stiffening, whereby vertical diagonal bars or diagonal bars can also be arranged in vertical sections in individual sections. It can be seen that at the downstream end of the tube bundle 1 stiffening profiles 7 are provided in the extension of the tube plate 5, which are thus arranged transversely to the tube bundle 1 and form a support grate after connection to adjacent heating surface modules, the individual grate bars of which are connected by the horizontal stiffeners 3 . As shown in FIG. 4, the individual stiffening profiles 7 can be connected by a butt weld 10 or, as shown in FIG. 5, by a butt plate construction 11.

Durch die weitgehende Vorfabrikation der Heizflächenbausteine in der Werkstätte beschränkt sich die Montage der einzelnen Rohrpakete nur auf die richtige Einbaulage und die ordnungsgemäße Verbindung der einzelnen Heizflächenbausteine, so daß für die Montage des Kessels auch die Verwendung von hochqualifizierten Montagekräften teilweise eingespart werden kann. Die einzelnen Heizflächenbausteine sind somit größenmäßig auf die Verwendung findende Waggon- bzw. LKW-Größe abgestimmt und bilden so eine Montageeinheit, die praktisch abfallos an der Baustelle angeschlossen wird. Ein Baustein ist somit transportsteif und durch den Zusammenbau mit gleichartigen zu einem tragfähigen Heizflächenpaket mit integrierter gasdurchlässiger Decke wertvoller geworden, indem die gasdurchlässige Decke auch Versteifungseffekte aufweist, die sich in Erdbebensicherheit und Innendruckversteifung auswirken, die normaler Weise eine zusätzliche Konstruktion beanspruchen. Auch die Aufhängung ist im "Heizflächenpaket" integriert, so daß man von einem Kompakt-Baustein sprechen kann.Due to the extensive prefabrication of the heating surface modules in the workshop, the assembly of the individual tube packs is limited only to the correct installation position and the correct connection of the individual heating surface modules, so that the use of highly qualified installation staff can be partially saved for the installation of the boiler. The size of the individual heating surface modules is therefore matched to the size of the wagon or truck used and thus forms an assembly unit that is connected to the construction site practically without waste. A building block has thus become transport-resistant and, by assembling it with a similar type of heating panel package with an integrated gas-permeable ceiling, has become more valuable, since the gas-permeable ceiling also has stiffening effects which have an effect on earthquake resistance and internal pressure stiffening, which normally require additional construction. The suspension is also integrated in the "heating surface package", so that one can speak of a compact module.

Claims (6)

1. Heizflächenbaustein für in Heizflächenschächten angeordnete Wärmetauscher, insbesondere für Heizflächen von abgasbeheizten Dampferzeugern, vorzugsweise nach Gasturbinen, bei welchen der Dampf innerhalb von Rohren erzeugt wird, die beispielsweise von unten nach oben vom Abgas umströmt sind, dadurch gekennzeichnet, daß werkstattseitig die einzelnen Heiflächenrohre in einem Rahmen (2) angeordnet sind, die zusammen mit dem Rahmen (2) eine transportfähige, versteifte und einbaufertige Einheit darstellen, deren horizontale Versteifung (3) zusammen mit den horizontalen Versteifungen (3') der bei der Montage benachbarten Rahmen (2') eine horizontale Tragkonstruktion (4) bilden, die das gesamte in Rohrplatten (5) gehaltene Rohrbündel (1) trägt und die als Innendruck- und Erdbebenabstützung des Heizflächenschachtes (6) ausgebildet ist.1.Heating surface module for heat exchangers arranged in heating surface shafts, in particular for heating surfaces of exhaust gas-heated steam generators, preferably after gas turbines, in which the steam is generated within tubes which are flowed around by the exhaust gas, for example from bottom to top, characterized in that the individual heating surface tubes in the workshop a frame (2) are arranged, which together with the frame (2) represent a transportable, stiffened and ready-to-install unit, the horizontal stiffening (3) of which, together with the horizontal stiffeners (3 ') of the frames (2') adjacent during assembly form a horizontal supporting structure (4) which carries the entire tube bundle (1) held in tube plates (5) and which is designed as an internal pressure and earthquake support for the heating surface shaft (6). 2. Heizflächenbaustein nach Anspruch 1, dadurch gekennzeichnet, daß der Rahmen (2) aus mindestens zwei rechteckigen, durch parallel angeordnete Heizflächenrohre verbundene Rohrplatten (5), in deren Verlängerung ein Versteifungsprofil (7) angeordnet ist, besteht, die durch Diagonalstäbe (8, 9) verbunden sind, die in horizontalen und vertikalen Ebenen angeordnet sind.2. heating surface module according to claim 1, characterized in that the frame (2) consists of at least two rectangular, by parallel arranged heating surface tubes connected tube plates (5), in the extension of which a stiffening profile (7) is arranged, which by diagonal bars (8, 9) are connected, which are arranged in horizontal and vertical planes. 3. Heizflächenbaustein nach Anspruch 2, dadurch gekennzeichnet, daß die Höhe der Rohrplatte (5), insbesondere mit dem Versteifungsprofil (7), der Stärke der erzeugten Baukastendecke entspricht.3. heating surface module according to claim 2, characterized in that the height of the tube plate (5), in particular with the stiffening profile (7), corresponds to the thickness of the modular ceiling. 4. Heizflächenbaustein nach Anspruch 2, dadurch gekennzeichnet, daß die Länge der Heizflächenrohre des Rohrbündels (1) der Länge der erzeugten Baukastendecke entspricht.4. heating surface module according to claim 2, characterized in that the length of the heating surface tubes of the tube bundle (1) corresponds to the length of the modular ceiling. 5. Heizflächenbaustein nach Anspruch 2, dadurch gekennzeichnet, daß die Verbindung der einzelnen Rahmen (2) durch die Verbindung der Versteifungsprofile (7) zu durchgehenden Trägern einer in sich steifen, gasdurchlässigen Decke erfolgt.5. heating surface module according to claim 2, characterized in that the connection of the individual frames (2) by the connection of the stiffening profiles (7) to continuous beams of a rigid, gas-permeable ceiling. 6. Heizflächenbaustein nach Anspruch 2, dadurch gekennzeichnet, daß das Versteifungsprofil am abgasstromseitigen Ende jedes Rohrbündels (1) angeordnet ist.6. heating surface module according to claim 2, characterized in that the stiffening profile is arranged at the exhaust flow end of each tube bundle (1).
EP19910110811 1990-07-30 1991-06-29 Installation of a heating surface of a steam generator in a waste gas channel Expired - Lifetime EP0469306B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT159490 1990-07-30
AT1594/90 1990-07-30

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EP0469306A1 true EP0469306A1 (en) 1992-02-05
EP0469306B1 EP0469306B1 (en) 1994-08-31

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1156944A (en) * 1965-11-18 1969-07-02 Princes Ind Dev Company Ltd Improvements relating to Boilers
FR2039251A1 (en) * 1969-04-17 1971-01-15 Sulzer Ag
US3965675A (en) * 1974-08-08 1976-06-29 Westinghouse Electric Corporation Combined cycle electric power plant and a heat recovery steam generator having improved boiler feed pump flow control
FR2456898A1 (en) * 1979-05-14 1980-12-12 Gen Electric INTERNAL SUPPORT STRUCTURE FOR HEAT EXCHANGER
US4685426A (en) * 1986-05-05 1987-08-11 The Babcock & Wilcox Company Modular exhaust gas steam generator with common boiler casing

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1156944A (en) * 1965-11-18 1969-07-02 Princes Ind Dev Company Ltd Improvements relating to Boilers
FR2039251A1 (en) * 1969-04-17 1971-01-15 Sulzer Ag
US3965675A (en) * 1974-08-08 1976-06-29 Westinghouse Electric Corporation Combined cycle electric power plant and a heat recovery steam generator having improved boiler feed pump flow control
FR2456898A1 (en) * 1979-05-14 1980-12-12 Gen Electric INTERNAL SUPPORT STRUCTURE FOR HEAT EXCHANGER
US4685426A (en) * 1986-05-05 1987-08-11 The Babcock & Wilcox Company Modular exhaust gas steam generator with common boiler casing

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EP0469306B1 (en) 1994-08-31
DE59102724D1 (en) 1994-10-06

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