EP0073851A1 - Steam generator with two vertical gas passages connected by a transverse gas passage - Google Patents

Steam generator with two vertical gas passages connected by a transverse gas passage Download PDF

Info

Publication number
EP0073851A1
EP0073851A1 EP81107837A EP81107837A EP0073851A1 EP 0073851 A1 EP0073851 A1 EP 0073851A1 EP 81107837 A EP81107837 A EP 81107837A EP 81107837 A EP81107837 A EP 81107837A EP 0073851 A1 EP0073851 A1 EP 0073851A1
Authority
EP
European Patent Office
Prior art keywords
train
vertical
steam generator
transverse
generator according
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
EP81107837A
Other languages
German (de)
French (fr)
Other versions
EP0073851B2 (en
EP0073851B1 (en
Inventor
Karl Rees
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sulzer AG
Original Assignee
Sulzer AG
Gebrueder Sulzer AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=4299720&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0073851(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Sulzer AG, Gebrueder Sulzer AG filed Critical Sulzer AG
Publication of EP0073851A1 publication Critical patent/EP0073851A1/en
Application granted granted Critical
Publication of EP0073851B1 publication Critical patent/EP0073851B1/en
Publication of EP0073851B2 publication Critical patent/EP0073851B2/en
Expired legal-status Critical Current

Links

Images

Classifications

    • 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
    • F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
    • F22B37/24—Supporting, suspending, or setting arrangements, e.g. heat shielding
    • F22B37/244—Supporting, suspending, or setting arrangements, e.g. heat shielding for water-tube steam generators suspended from the top

Definitions

  • the invention relates to a steam generator with the features according to the preamble of patent claim 1.
  • the two vertical trains are suspended on the boiler frame by tension members extending from the upper edge of the tube walls.
  • the rear wall of the first vertical train and the front wall of the second vertical train are suspended via pipes which form continuations of the two walls mentioned and which are loosened and passed through the transverse train. With this loosening, the majority of the pipes emerging from the wall are cranked out, and only a few pipes are currently running through the transverse train.
  • This object is achieved by the features of the characterizing part of claim 1.
  • This design eliminates the need for support tubes that traverse the transverse train.
  • the invention has the advantages that the above the supporting - systems part of the boiler steel structure located can be more easily designed so that the pipes in the upper part of the two vertical trains are less highly stressed and can that follows the installation of the steam generator more quickly because the surface banks can still be installed when the combustion chamber is already completed.
  • the displacement of the vertical trains due to thermal expansion is also lower at their lower end.
  • the feature of claim 3 has the advantage of uniform wall load because the inevitable M assabweichonne and impact setting error less.
  • the adjustability according to claim 4 allows manufacturing and assembly errors to be compensated.
  • hydraulic presses according to claim 5 makes it easier to adjust the pendulum supports and the tension elements.
  • the feature according to claim 6 evens out the introduction of the support forces into the tube walls, thereby avoiding inadmissibly high local stresses.
  • six pillars 2 are erected on foundations 1 for a steam generator, which together with an upper frame 4 and a lower frame 5 form a boiler frame in the form of a stylized figure eight.
  • a steam generator which together with an upper frame 4 and a lower frame 5 form a boiler frame in the form of a stylized figure eight.
  • four pipe walls 12, 13 and 12 ', 14 are suspended from two support systems 7 and 8, which limit a first vertical train 10 and a second vertical train 11, through which the flue gases flow in succession (arrows A, B ).
  • the lower part of the first vertical train 10 forms the combustion chamber of the steam generator.
  • the two vertical trains 10 and 11 are connected above the support systems 7 and 8 by a transverse train 15 leading from the rear wall 13 of the first vertical train 10 to the front wall 14 of the second vertical train 11.
  • the tube walls 12, 13 and 12 ', 14 consist of vertical tubes 17 which are tightly welded to one another via webs 20.
  • sheet metal strips 21 are welded to the webs 20 in the area of the support systems 7 and 8, which are group-like comb-like are combined on connecting plates 23.
  • Two of these connecting plates 23 are hinged to a three-hole weighing plate 24, which is pivotally attached to a support band 25.
  • Each carrier tape 25 has two claws 26, 27, between which one end of a J -shaped lever 30 designed as a box girder projects.
  • a vertical mandrel 31 is inserted through this lever end and the two claws 26, 27, about the axis of which the lever can be rotated.
  • Each two-armed lever 30 is supported by a pendulum support 35 on a cantilever arm 36 of the lower frame 5, while a tension element 37 connects the other end of each lever 30 to an eyelet 38 of the frame 5.
  • Each pendulum support 35 consists of a short threaded bolt 40, which is extended up and down by a welded pipe section 41 and 42, respectively.
  • a spherical cap 45 On the upper end of the pipe section 41 there is a spherical cap 45, on which a pan 46 sits, which is fastened to the upper flange of the lever 30.
  • the lower pipe section 42 is telescopically inserted in a pipe section 48 which is connected to a pan 49 at a lower end. This pan 49 rests on a cap 50 which is welded onto the arm 36.
  • On the threaded bolt 40 sits a nut 52 turned on one side, which is supported by a plate 53 on a set of disc springs 55, the lowest of which is on the upper end face of the pipe section 48 is present.
  • a recess 57 is provided in the lower flange of each lever 30, through which a pendulum support 35 extends with play.
  • each lever 30 is reinforced by two sheets 58 which are welded to the outside of the webs of the box-shaped lever 30.
  • Fig. 3 between the plate 53 and the lower flange of the lever 30 two small hydraulic presses 60, 61 are indicated with dashed lines, the function of which is described below.
  • belts 64 and 65 are provided a little below the levers 30 on the vertical trains 10 and 11, respectively.
  • the belt 64 consists of four bending beams 70 to 73 surrounding the train 10 and the belt 65 consists of four bending beams 70 'to 73' surrounding the train 11.
  • the bending beams are, as usual, articulated at their ends via tabs in a manner not shown on the pipe walls 12, 13 or 12 ', 14 and connected to the associated pipe wall by a plurality of supports 66 distributed over the length of the bending beams. Straps composed in the same way are distributed over the entire height of the vertical trains. These tapes prevent the pipe walls from bulging outwards under the internal pressure prevailing in the trains.
  • the bending beams 71 and 72 which run transversely to the layout of the steam generator, are supported on the frame 5 by supports 75 against displacement in the transverse direction of the steam generator (FIG. 2).
  • the bending beam 71 is additionally connected to the central beam of the lower frame 5 via tabs 76.
  • the bending beams 71 'and 72' of the belt 65 of the train 11 are supported by supports 75 'and tabs 76' on the part of the lower frame 5 surrounding this train.
  • Thermal insulation 80 is provided on the outside of the tube walls 12, 13 and 12 '14 attached, which is indicated in Fig. 3.
  • the tubes 17 of the front wall 12 of the vertical train 10 open with their upper ends into a collector 78, while the tubes 17 of the rear wall 13 of this train lead to a collector 79 which is arranged parallel to the rear wall 13 below the transverse train 15.
  • the belt system 70 to 76 together with the parts 21 to 38 forms the support system 7 of the vertical train 10.
  • the support system 8 of the train 11 is formed by the belt system 70 'to 76' with associated parts 21 to 38.
  • the large number of two-armed levers 30 with the pendulum supports 35 and the tension elements 37 only become a stable support system of a vertical train in that the ends of the levers 30 are fixed in the horizontal direction. This fixation takes place via the mandrels 31, the carrying straps 25 etc. and finally through the supports 75.75 'and the tabs 76.76' between the straps 64 and 65 and the boiler frame.
  • the bending supports 71 and 71 ' can only move in the vertical direction in space because of the supports 75 and 75' and the tabs 76 and 76 ', this vertical displacement remaining very small since the straps are only slightly below the Support are arranged.
  • a fixed point F or F 'thus arises in the middle of the tube walls 13 and 14 at the level of the support on the outer surface of the insulation 80, from which the thermal expansion movements run in a radial manner.
  • the transverse pull 15 is designed to be flexible in this arrangement, so that it can absorb its own longitudinal expansion itself.
  • the pendulum supports 35 and the tension elements 37 are expediently arranged on the lower frame 5 in such a way that they are vertical with a medium expansion deflection. In this way, the height differences remain the same Heating of the steam generator from a cold state minimal.
  • the length of the pendulum support and the length of the tension element are expediently chosen to be about ten times as long as the greatest horizontal expansion that occurs.
  • the pendulum supports 35 are designed to be adjustable in length.
  • the two hydraulic presses 60 and 61 are placed on the plate 53 on both sides of the upper pipe section 41 and are subjected to such pressure that the total force exerted on the underside of the lever 30 corresponds to the proportion of the load corrected by the lever ratio, which corresponds to the associated carrying band 25 should be omitted. If this pressure is set, the nut 52 is screwed down against the plate 53 and tightened moderately. The two hydraulic presses 60 and 61 can then be relaxed and removed.
  • the laterally flexible support by means of pendulum supports and tension elements means that the carrying straps 25 cannot deflect laterally. This condition is met by the lateral support of the straps 64 and 65 by the supports 75 and 75 'and tabs 76 and 76'. It may be expedient to support the remaining straps, not shown, in an analogous manner on the boiler frame.
  • the weight of the transverse train 15 can be transmitted to the wall sections of the vertical trains above the support systems 7 and 8 by long straps which are reinforced to absorb gravitational forces.
  • constant hangers can also be provided, by means of which the transverse pull 15 can be suspended from the upper frame 4 of the boiler frame.
  • the pipe walls 12, 13 and 12 ', 14 of the vertical trains 10 and 11 are expediently created from the support systems 7 and 8, proceeding downwards.
  • the bundle heating surfaces can be installed over the support systems 7 and 8, while the burners are already being installed on the combustion chamber of the vertical train 10. From the bundle heating surfaces which come to lie in the space above the combustion chamber of the vertical train 10 and in the vertical train 11, the support tubes 81 and 81 'can be seen in FIG and are attached to the frame 4 in a known manner.
  • control and the lines to the burners can be installed at a time when the cross-train 15 and the upper sections of the vertical trains 10 and 11 are installed.
  • Such a procedure allows the path of the assembly process, which is critical in the scheduling, to be shortened considerably.
  • the walls forming the second vertical train can consist of pipes not welded in a gas-tight manner; this train would then be created in skin-casing design.

Landscapes

  • 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)
  • Control Of Steam Boilers And Waste-Gas Boilers (AREA)

Abstract

Der Dampferzeuger weist einen ersten Vertikalzug (10) aus dicht verschweissten Rohrwänden (12, 14) auf. Er weist ferner einen dem ersten Zug benachbarten zweiten Vertikalzug (11) und einen die Vertikalzüge in deren oberen Bereich verbindenden Querzug (15) auf. Zur Aufnahme der Gewichte der Rohrwände (12, 13 bzw. 12', 14) des ersten und des zweiten Vertikalzuges ist im Höhenbereich nahe unterhalb des Querzuges (15) je Vertikalzug ein Tragsystem (7 bzw. 8) angeordnet, das nahe unterhalb Querzuges mit einem Kesselgerüst (2, 5) verbunden ist. Hierdurch wird die Dampferzeugerkonstruktion vereinfacht, da die sonst notwendigen, aus der Rückwand des ersten Vertikalzuges und der Vorderwant des zweiten Vertikalzuges kommenden und den Querzug durchquerenden Tragrohre entfallen.The steam generator has a first vertical train (10) made of tightly welded tube walls (12, 14). It also has a second vertical train (11) adjacent to the first train and a transverse train (15) connecting the vertical trains in their upper region. To accommodate the weights of the tube walls (12, 13 and 12 ', 14) of the first and the second vertical train, a support system (7 and 8) is arranged in the height range close below the transverse train (15) for each vertical train, with the transverse train close below a boiler frame (2, 5) is connected. This simplifies the construction of the steam generator, since the support tubes, which are otherwise necessary and come from the rear wall of the first vertical train and the front flange of the second vertical train and cross the transverse train, are dispensed with.

Description

Die'Erfindung bezieht sich auf einen Dampferzeuger mit den Merkmalen nach dem Oberbegriff des Patentanspruchs 1.The invention relates to a steam generator with the features according to the preamble of patent claim 1.

Bei solchen bekannten Dampferzeugern sind die beiden Vertikalzüge durch von der Oberkante der Rohrwände ausgehende Zugglieder am Kesselgerüst aufgehängt. Die Rückwand des ersten Vertikalzuges und die Vorderwand des zweiten Vertikalzuges werden dabei über Rohre aufgehängt, die Fortsetzungen der beiden genannten Wände bilden und die aufgelockert durch den Querzug hindurchgeführt werden. Bei dieser Auflockerung wird der grösste Teil der aus der Wand austretenden Rohre ausgekröpft, und nur wenige Rohre laufen gerade durch den Querzug.In such known steam generators, the two vertical trains are suspended on the boiler frame by tension members extending from the upper edge of the tube walls. The rear wall of the first vertical train and the front wall of the second vertical train are suspended via pipes which form continuations of the two walls mentioned and which are loosened and passed through the transverse train. With this loosening, the majority of the pipes emerging from the wall are cranked out, and only a few pipes are currently running through the transverse train.

Bei grossen Dampferzeugern mit hohen, schweren Rohrwänden stellt sich das Problem, dass die gerade durchlaufenden Rohre verstärkt werden müssen, um den Lastanteil der ausgekröpften, nicht belastbaren Rohre übernehmen zu können. Solche verstärkte Rohre sind thermisch träger als die Wandrohre in den Seitenwänden. Sie werden im allgemeinen durch die ausgekröpften Rohre teilweise abgeschirmt, so dass sie trotz der Anströmung durch die Rauchgase bei Aenderung der Rauchgastemperatur träger reagieren als die auf gleicher Höhe befindlichen Rohrabschnitte der benachbarten Seitenwände. Dies kann zu unzulässig hohen Spannungen führen, insbesondere im Bereich der unteren Ecken des Querzuges.With large steam generators with high, heavy tube walls, the problem arises that the tubes that are just passing through have to be reinforced in order to be able to take on the load portion of the disengaged tubes that cannot be loaded. Such reinforced pipes are thermally slower than the W androhre in the side walls. They are generally partially shielded by the cranked pipes, so that they react more slowly than the pipe sections of the adjacent side walls, which are at the same height, despite the inflow through the flue gases when the flue gas temperature changes. This can lead to impermissibly high tensions, especially in the area of the lower corners of the cross train.

Es ist Aufgabe der Erfindung, bei einem Dampferzeuger der eingangs genannten Art solche unzulässige Spannungen zu vermeiden.It is an object of the invention to avoid such impermissible voltages in a steam generator of the type mentioned at the outset.

Diese Aufgabe wird durch die Merkmale des Kennzeichens des Anspruchs 1 gelöst. Durch diese Gestaltung entfallen Tragrohre, die den Querzug durchqueren. Ueberdies weist die Erfindung die Vorteile auf, dass der oberhalb der Trag- systeme befindliche Teil des Kesselgerüstes leichter ausgebildet werden kann, dass die Rohre im oberen Teil der beiden Vertikalzüge weniger hoch beansprucht werden und dass die Montage des Dampferzeugers rascher erfolgen kann, weil die Bündelheizflächen noch eingebaut werden können, wenn die Brennkammer bereits fertiggestellt ist. Auch ist die durch Wärmedehnung bedingte Verschiebung der Vertikalzüge an ihrem unteren Ende geringer.This object is achieved by the features of the characterizing part of claim 1. This design eliminates the need for support tubes that traverse the transverse train. Besides, the invention has the advantages that the above the supporting - systems part of the boiler steel structure located can be more easily designed so that the pipes in the upper part of the two vertical trains are less highly stressed and can that follows the installation of the steam generator more quickly because the surface banks can still be installed when the combustion chamber is already completed. The displacement of the vertical trains due to thermal expansion is also lower at their lower end.

Durch die Merkmale nach Anspruch 2 wird erreicht, dass die Tragsysteme den Wärmedehnungen der Rohrwände folgen können, ohne dass merkliche horizontale Kräfte auftreten.The features of claim 2 ensure that the support systems can follow the thermal expansions of the tube walls without significant horizontal forces occurring.

Das Merkmal nach Anspruch 3 bringt den Vorteil einer gleichmässigen Wandbelastung, weil sich die unvermeidlichen Massabweichungen und Einstellfehler weniger stark auswirken.The feature of claim 3 has the advantage of uniform wall load because the inevitable M assabweichungen and impact setting error less.

Die Einstellbarkeit nach Anspruch 4 gestattet, Fabrikations- und Montagefehler zu kompensieren.The adjustability according to claim 4 allows manufacturing and assembly errors to be compensated.

Durch die Anwendung hydraulischer Pressen gemäss Anspruch 5 lässt sich das Einstellen der Pendelstützen und der Zugelemente erleichtern.The use of hydraulic presses according to claim 5 makes it easier to adjust the pendulum supports and the tension elements.

Das Merkmal nach Anspruch 6 vergleichmässigt das Einleiten der Abstützkräfte in die Rohrwände, wodurch unzulässig hohe lokale Spannungen vermieden werden.The feature according to claim 6 evens out the introduction of the support forces into the tube walls, thereby avoiding inadmissibly high local stresses.

Ein Ausführungsbeispiel der Erfindung wird in der folgenden Beschreibung anhand der Zeichnung näher erläutert. Es zeigen:

  • Fig. 1 eine schematisierte Seitenansicht eines Dampferzeugers nach der Erfindung,
  • Fig. 2 einen schematisierten Horizontalschnitt nach der Ebene II - II in Fig. l,
  • Fig. 3 einen Längsschnitt durch einen zweiarmigen Hebel mit Pendelstütze und Zugelement und
  • Fig. 4 einen Schnitt nach der Ebene IV - IV in Fig. 3.
An embodiment of the invention is explained in more detail in the following description with reference to the drawing. Show it:
  • 1 is a schematic side view of a steam generator according to the invention,
  • 2 shows a schematic horizontal section along the plane II-II in FIG. 1,
  • Fig. 3 shows a longitudinal section through a two-armed lever with pendulum support and tension element and
  • 4 shows a section along the plane IV-IV in FIG. 3.

Für einen Dampferzeuger sind nach Fig. 1 und 2 auf Fundamenten 1 sechs Pfeiler 2 errichtet, die zusammen mit einem oberen Rahmen4und einem unteren Rahmen 5 in der Form einer stilisierten Acht ein Kesselgerüst bilden. Am unteren Rahmen 5 sind an zwei Tragsystemen 7 und 8 je vier Rohrwände 12, 13 bzw. 12', 14 aufgehängt, die einen ersten Vertikalzug 10 bzw. einen zweiten Vertikalzug 11 begrenzen, die von den Rauchgasen nacheinander durchströmt werden (Pfeile A, B). Der untere Teil des ersten Vertikalzuges 10 bildet die Brennkammer des Dampferzeugers.1 and 2, six pillars 2 are erected on foundations 1 for a steam generator, which together with an upper frame 4 and a lower frame 5 form a boiler frame in the form of a stylized figure eight. On the lower frame 5, four pipe walls 12, 13 and 12 ', 14 are suspended from two support systems 7 and 8, which limit a first vertical train 10 and a second vertical train 11, through which the flue gases flow in succession (arrows A, B ). The lower part of the first vertical train 10 forms the combustion chamber of the steam generator.

Die beiden Vertikalzüge 10 und 11 sind oberhalb der Tragsysteme 7 und 8 durch einen von der Rückwand 13 des ersten Vertikalzuges 10 zur Vorderwand 14 des zweiten Vertikalzuges 11 führenden Querzug 15 miteinander verbunden.The two vertical trains 10 and 11 are connected above the support systems 7 and 8 by a transverse train 15 leading from the rear wall 13 of the first vertical train 10 to the front wall 14 of the second vertical train 11.

Die Rohrwände 12, 13 und 12', 14 bestehen aus über Stege 20 miteinander dicht verschweissten vertikalen Rohren 17. An den Stegen 20 sind, wie Fig. 3 und 4 zeigen, im Bereich der Tragsysteme 7 und 8 Blechstreifen 21 angeschweisst, die gruppenweise kammartig an Verbindungsblechen 23 zusammengefasst sind. Je zwei dieser Verbindungsbleche 23 sind an einer drei Bohrungen aufweisenden Waaglasche 24 angelenkt, die an einem Tragband 25 schwenkbar befestigt ist. Jedes Tragband 25 weist zwei Pratzen 26, 27 auf, zwischen denen das eine Ende eines als Kastenträger ausgebildetenJzweiarmigen Hebels 30 ragt. Durch dieses Hebelende und die beiden Pratzen 26, 27 ist ein vertikaler Dorn 31 gesteckt, um dessen Achse der Hebel drehbar ist.The tube walls 12, 13 and 12 ', 14 consist of vertical tubes 17 which are tightly welded to one another via webs 20. As shown in FIGS. 3 and 4, sheet metal strips 21 are welded to the webs 20 in the area of the support systems 7 and 8, which are group-like comb-like are combined on connecting plates 23. Two of these connecting plates 23 are hinged to a three-hole weighing plate 24, which is pivotally attached to a support band 25. Each carrier tape 25 has two claws 26, 27, between which one end of a J -shaped lever 30 designed as a box girder projects. A vertical mandrel 31 is inserted through this lever end and the two claws 26, 27, about the axis of which the lever can be rotated.

Jeder zweiarmige Hebel 30 stützt sich über eine Pendelstütze 35 auf einem auskragenden Arm 36 des unteren Rahmens 5 ab, während ein Zugelement 37 das andere Ende jedes Hebels 30 mit einer Oese 38 des Rahmens 5 verbindet.Each two-armed lever 30 is supported by a pendulum support 35 on a cantilever arm 36 of the lower frame 5, while a tension element 37 connects the other end of each lever 30 to an eyelet 38 of the frame 5.

Jede Pendelstütze 35 besteht aus einem kurzen Gewindebolzen 40, der nach oben und unten durch ein angeschweisstes Rohrstück 41 bzw. 42 verlängert ist. Auf dem oberen Ende des Rohrstückes 41 befindet sich eine Kalotte 45, auf der eine Pfanne 46 sitzt, die am oberen Flansch des Hebels 30 befestigt ist. Das untere Rohrstück 42 steckt teleskopartig in einem Rohrstück 48, das an einem unteren Ende mit einer Pfanne 49 verbunden ist. Diese Pfanne 49 ruht auf einer Kalotte 50, die auf dem Arm 36 angeschweisst ist. Auf dem Gewindebolzen 40 sitzt eine einseitig ausgedrehte Mutter 52, die sich über eine Platte 53 auf einem Satz Tellerfedern 55 abstützt, deren unterste an der oberen Stirnseite des Rohrstückes 48 anliegt. Im unteren Flansch jedes Hebels 30 ist eine Ausnehmung 57 vorgesehen, durch die sich jeweils eine Pendelstütze 35 mit Spiel erstreckt. Im Bereich der Ausnehmung 57 ist jeder Hebel 30 durch zwei Bleche 58 verstärkt, die aussen an die Stege des kastenförmigen Hebels 30 angeschweisst sind. In Fig. 3 sind zwischen der Platte 53 und dem unteren Flansch des Hebels 30 zwei kleine hydraulische Pressen 60, 61 mit gestrichelten Linien angedeutet, deren Funktion weiter unten beschrieben wird.Each pendulum support 35 consists of a short threaded bolt 40, which is extended up and down by a welded pipe section 41 and 42, respectively. On the upper end of the pipe section 41 there is a spherical cap 45, on which a pan 46 sits, which is fastened to the upper flange of the lever 30. The lower pipe section 42 is telescopically inserted in a pipe section 48 which is connected to a pan 49 at a lower end. This pan 49 rests on a cap 50 which is welded onto the arm 36. On the threaded bolt 40 sits a nut 52 turned on one side, which is supported by a plate 53 on a set of disc springs 55, the lowest of which is on the upper end face of the pipe section 48 is present. A recess 57 is provided in the lower flange of each lever 30, through which a pendulum support 35 extends with play. In the area of the recess 57, each lever 30 is reinforced by two sheets 58 which are welded to the outside of the webs of the box-shaped lever 30. In Fig. 3 between the plate 53 and the lower flange of the lever 30 two small hydraulic presses 60, 61 are indicated with dashed lines, the function of which is described below.

Wie aus Fig. 1 zu sehen ist, ist wenig unterhalb der Hebel 30 an den Vertikalzügen 10 und 11 je eine Gurtung 64 bzw. 65 vorgesehen. Die Gurtung 64 besteht aus vier, den Zug 10 umgebenden Biegeträgern 70 bis 73 und die Gurtung 65 aus vier den Zug 11 umgebenden Biegeträgern 70' bis 73'. Die Biegeträger sind, wie üblich, an ihren Enden über Laschen auf nicht gezeichnete Weise an den Rohrwänden 12, 13 bzw. 12', 14 angelenkt und durch eine Vielzahl von über die Länge der Biegeträger verteilten Stützen 66 mit der zugehörigen Rohrwand verbunden. In gleicher Weise zusammengesetzte Gurtungen sind über die gesamte Höhe der Vertikalzüge verteilt angeordnet. Diese Gurtungen vermeiden, dass die Rohrwände sich unter dem in den Zügen herrschenden Innendruck nach aussen wölben.As can be seen from FIG. 1, belts 64 and 65 are provided a little below the levers 30 on the vertical trains 10 and 11, respectively. The belt 64 consists of four bending beams 70 to 73 surrounding the train 10 and the belt 65 consists of four bending beams 70 'to 73' surrounding the train 11. The bending beams are, as usual, articulated at their ends via tabs in a manner not shown on the pipe walls 12, 13 or 12 ', 14 and connected to the associated pipe wall by a plurality of supports 66 distributed over the length of the bending beams. Straps composed in the same way are distributed over the entire height of the vertical trains. These tapes prevent the pipe walls from bulging outwards under the internal pressure prevailing in the trains.

Von der Gurtung 64 sind die quer zum Grundriss des Dampferzeugers verlaufenden Biegeträger 71 und 72 über Stützen 75 gegen Verschiebung in Querrichtung des Dampferzeugers am Rahmen 5 abgestützt (Fig. 2). Der Biegeträger 71 ist zusätzlich über Laschen 76 mit dem mittleren Träger des unteren Rahmens 5 verbunden. In gleicher Weise sind die Biegeträger 71' und 72' der Gurtung 65 des Zuges 11 über Stützen 75' und Laschen 76' an dem diesen Zug umgebenden Teil des unteren Rahmens 5 abgestützt. An den Rohrwänden 12, 13 und 12' 14 ist aussen eine Wärmeisolation 80 angebracht, die in Fig. 3 angedeutet ist.The bending beams 71 and 72, which run transversely to the layout of the steam generator, are supported on the frame 5 by supports 75 against displacement in the transverse direction of the steam generator (FIG. 2). The bending beam 71 is additionally connected to the central beam of the lower frame 5 via tabs 76. In the same way, the bending beams 71 'and 72' of the belt 65 of the train 11 are supported by supports 75 'and tabs 76' on the part of the lower frame 5 surrounding this train. Thermal insulation 80 is provided on the outside of the tube walls 12, 13 and 12 '14 attached, which is indicated in Fig. 3.

Die Rohre 17 der Vorderwand 12 des Vertikalzuges 10 münden mit ihren oberen Enden in einen Sammler 78, während die Rohre 17 der Rückwand 13 dieses Zuges zu einem Sammler 79 führen, der parallel zur Rückwand 13 unterhalb des Querzuges 15 angeordnet ist. Das Gurtungssystem 70 bis 76 bildet mit den Teilen 21 bis 38 zusammen das Tragsystem 7 des Vertikalzuges 10. Analog wird das Tragsystem 8 des Zuges 11 von dem Gurtungssystem 70' bis 76' mit zugehörigen Teilen 21 bis 38 gebildet. Die Vielzahl der zweiarmigen Hebel 30 mit den Pendelstützen 35 und den Zugelementen 37 werden erst dadurch zu einem stabilen Tragsystem eines Vertikalzuges, dass die Enden der Hebel 30 in Horizontalrichtung fixiert sind. Diese Fixierung geschieht über die Dorne 31, die Tragbänder 25 usw. und schliesslich durch die Stützen 75,75' und die Laschen 76,76' zwischen den Gurtungen 64 und 65 und dem Kesselgerüst.The tubes 17 of the front wall 12 of the vertical train 10 open with their upper ends into a collector 78, while the tubes 17 of the rear wall 13 of this train lead to a collector 79 which is arranged parallel to the rear wall 13 below the transverse train 15. The belt system 70 to 76 together with the parts 21 to 38 forms the support system 7 of the vertical train 10. Analogously, the support system 8 of the train 11 is formed by the belt system 70 'to 76' with associated parts 21 to 38. The large number of two-armed levers 30 with the pendulum supports 35 and the tension elements 37 only become a stable support system of a vertical train in that the ends of the levers 30 are fixed in the horizontal direction. This fixation takes place via the mandrels 31, the carrying straps 25 etc. and finally through the supports 75.75 'and the tabs 76.76' between the straps 64 and 65 and the boiler frame.

Bei den dargestellten Tragsystemen können sich die Biegeträger 71 und 71' wegen der Stützen 75 bzw. 75' und der Laschen 76 bzw. 76' nur in vertikaler Richtung im Raume verschieben, wobei diese Vertikalverschiebung sehr gering bleibt, da die Gurtungen nur wenig unterhalb der Abstützung angeordnet sind. Es stellt sich somit in der Mitte der Rohrwände 13 und 14 auf der Höhe der Abstützung an der Aussenfläche der Isolation 80 je ein Fixpunkt F bzw. F' ein, von dem aus die Wärmedehnungsbewegungen strahlenförmig laufen. Der Querzug 15 ist bei dieser Anordnung nachgiebig gestaltet, sodass er seine eigene Längsdehnung selber aufnehmen kann.In the support systems shown, the bending supports 71 and 71 'can only move in the vertical direction in space because of the supports 75 and 75' and the tabs 76 and 76 ', this vertical displacement remaining very small since the straps are only slightly below the Support are arranged. A fixed point F or F 'thus arises in the middle of the tube walls 13 and 14 at the level of the support on the outer surface of the insulation 80, from which the thermal expansion movements run in a radial manner. The transverse pull 15 is designed to be flexible in this arrangement, so that it can absorb its own longitudinal expansion itself.

Die Pendelstützen 35 und die Zugelemente 37 werden zweckmässig auf dem unteren Rahmen 5 derart angeordnet, dass sie bei einem mittleren Dehnungsausschlag vertikal stehen. Auf diese Weise bleiben die Höhenunterschiede bei der Erwärmung des Dampferzeugers aus kaltem Zustand minimal. Um die Höhenunterschiede klein zu halten, werden die Länge der Pendelstütze und die Länge des Zugelementes zweckmässig etwa zehn mal so lang wie die grösste auftretende Horizontaldehnung gewählt.The pendulum supports 35 and the tension elements 37 are expediently arranged on the lower frame 5 in such a way that they are vertical with a medium expansion deflection. In this way, the height differences remain the same Heating of the steam generator from a cold state minimal. In order to keep the height differences small, the length of the pendulum support and the length of the tension element are expediently chosen to be about ten times as long as the greatest horizontal expansion that occurs.

Da bei der Montage des Kesselgerüstes und des Dampferzeugers erhebliche Massabweichungen in vertikaler Richtung auftreten können, sind die Pendelstützen 35 in ihrer Länge einstellbar gestaltet. Zum Einstellen werden die beiden hydraulischen Pressen 60 und 61 beidseits des oberen Rohrstückes 41 auf die Platte 53 gestellt und mit solchem Druck beaufschlagt, dass die auf die Unterseite des Hebels 30 ausgeübte Gesamtkraft dem um das Hebelverhältnis korrigierten Lastanteil entspricht, der auf das zugehörige Tragband 25 entfallen soll. Ist dieser Druck eingestellt, so wird die Mutter 52 nach unten gegen die Platte 53 geschraubt und mässig angezogen. Hierauf können die beiden hydraulischen Pressen 60 und 61 entspannt und entfernt werden.Since considerable deviations in dimensions can occur in the vertical direction during the assembly of the boiler frame and the steam generator, the pendulum supports 35 are designed to be adjustable in length. For adjustment, the two hydraulic presses 60 and 61 are placed on the plate 53 on both sides of the upper pipe section 41 and are subjected to such pressure that the total force exerted on the underside of the lever 30 corresponds to the proportion of the load corrected by the lever ratio, which corresponds to the associated carrying band 25 should be omitted. If this pressure is set, the nut 52 is screwed down against the plate 53 and tightened moderately. The two hydraulic presses 60 and 61 can then be relaxed and removed.

Wie schon angedeutet, verlangt die seitlich flexible Abstützung durch Pendelstützen und Zugelemente, dass die Tragbänder 25 seitlich nicht ausweichen können. Diese Bedingung wird durch die seitliche Abstützung der Gurtungen 64 und 65 durch die Stützen 75 bzw. 75' und Laschen 76 bzw. 76' erfüllt. Es kann zweckmässig sein, auch die übrigen, nicht gezeichneten Gurtungen auf analoge Weise am Kesselgerüst abzustützen.As already indicated, the laterally flexible support by means of pendulum supports and tension elements means that the carrying straps 25 cannot deflect laterally. This condition is met by the lateral support of the straps 64 and 65 by the supports 75 and 75 'and tabs 76 and 76'. It may be expedient to support the remaining straps, not shown, in an analogous manner on the boiler frame.

Das Gewicht des Querzuges 15 kann durch zur Aufnahme von Schwerkräften verstärkte, lange Gurtungen auf die oberhalb der Tragsysteme 7 und 8 liegenden Wandabschnitte der Vertikalzüge übertragen werden. Es können aber auch Konstanthänger vorgesehen sein, über die der Querzug 15 am oberen Rahmen 4 des Kesselgerüstes aufgehängt werden kann.The weight of the transverse train 15 can be transmitted to the wall sections of the vertical trains above the support systems 7 and 8 by long straps which are reinforced to absorb gravitational forces. However, constant hangers can also be provided, by means of which the transverse pull 15 can be suspended from the upper frame 4 of the boiler frame.

Bei der Montage des Dampferzeugers werden zweckmässig von den Tragsystemen 7 und 8 aus, nach unten fortschreitend, die Rohrwände 12, 13 und 12', 14 der Vertikalzüge 10 bzw. 11 erstellt. Unabhängig vom Fortschreiten dieser Arbeiten können die nicht dargestellten Bündelheizflächen über die Tragsysteme 7 und 8 hinweg eingebaut werden, während an der Brennkammer des Vertikalzuges 10 bereits die Brenner montiert werden. Von den Bündelheizflächen, die in dem Raum oberhalb der Brennkammer des Vertikalzuges 10 sowie im Vertikalzug 11 zu liegen kommen, sind in Fig. 1 die Tragrohre 81 bzw. 81' zu sehen, die die gemeinsame Decke der Züge 10, 15 und 11 gasdicht durchstossen und am Rahmen 4 in bekannter Weise befestigt sind.When assembling the steam generator, the pipe walls 12, 13 and 12 ', 14 of the vertical trains 10 and 11 are expediently created from the support systems 7 and 8, proceeding downwards. Regardless of the progress of this work, the bundle heating surfaces, not shown, can be installed over the support systems 7 and 8, while the burners are already being installed on the combustion chamber of the vertical train 10. From the bundle heating surfaces which come to lie in the space above the combustion chamber of the vertical train 10 and in the vertical train 11, the support tubes 81 and 81 'can be seen in FIG and are attached to the frame 4 in a known manner.

So können schon die Steuerung und die Leitungen zu den Brennern in einem Zeitpunkt angebaut werden, in dem der Querzug 15 und die oberen Abschnitte der Vertikalzüge 10 und 11 montiert werden. Ein solches Vorgehen gestattet, den bei der Terminplanung kritischen Pfad des Montagevorganges beträchtlich zu verkürzen.In this way, the control and the lines to the burners can be installed at a time when the cross-train 15 and the upper sections of the vertical trains 10 and 11 are installed. Such a procedure allows the path of the assembly process, which is critical in the scheduling, to be shortened considerably.

Um den Querzug 15 nicht nachgiebig ausführen zu müssen, kann es vorteilhaft sein, den Fixpunkt F' des zweiten Zuges 11 auf den Fixpunkt F des ersten Zuges 10 zu bringen, indem beispielsweise der Biegeträger 7l* - statt von den Laschen 76' - von Armen geführt wird, die am Gasaustrittsende des Querzuges starr befestigt sind und nach unten auskragen.In order not to have to perform the transverse pull 15 resiliently, it can be advantageous to bring the fixed point F 'of the second train 11 to the fixed point F of the first train 10, for example by the bending beam 7l * - instead of the tabs 76' - of arms is performed, which are rigidly attached to the gas outlet end of the cross train and protrude downwards.

Abweichend von der beschriebenen Ausführungsform, können die den zweiten Vertikalzug bildenden Wände aus nicht gasdicht verschweissten Rohren bestehen; dieser Zug würde dann in skin-casing-Bauart erstellt.Deviating from the described embodiment, the walls forming the second vertical train can consist of pipes not welded in a gas-tight manner; this train would then be created in skin-casing design.

Claims (7)

1. Dampferzeuger mit einem aus dicht verschweissten Rohren gefertigtem, eine Brennkammer umfassendem ersten Vertikalzug, einem benachbarten zweiten Vertikalzug und mit einem den zweiten mit dem ersten Vertikalzug verbindenden, im oberen Bereich der Vertikalzüge angeschlossenen kurzen Querzug, sowie mit einem Kesselgerüst zum Tragen des Dampferzeugers, dadurch gekennzeichnet, dass zur Aufnahme der Gewichte der Rohrwände des ersten und des zweiten Vertikalzuges im Höhenbereich nahe unterhalb des Querzuges je Vertikalzug ein Tragsystem angeordnet und nahe unterhalb des Querzuges mit dem . Kesselgerüst verbunden ist.1. steam generator with a first vertical train made of tightly welded pipes, comprising a combustion chamber, an adjacent second vertical train and with a short transverse train connecting the second to the first vertical train and connected in the upper area of the vertical trains, and with a boiler frame for supporting the steam generator, characterized in that for supporting the weights of the tube walls of the first and the second vertical train in the height range close below the transverse train a vertical system is arranged and close below the transverse train with the. Boiler frame is connected. 2. Dampferzeuger nach Anspruch 1, dadurch gekennzeichnet, dass jedes der Tragsysteme eine Vielzahl zweiarmiger Hebel umfasst, von denen jeder über eine Pendelstütze und ein Zugelement an einem horizontal sich erstreckenden Rahmen des Kesselgerüstes abgestützt und mit einem Ende mit einer der Rohrwände des Dampferzeugers verbunden ist, und dass jedes der Tragsysteme eine in den horizontalen Hauptrichtungen am Kesselgerüst abgestützte, den zugehörigen Vertikalzug umgebende Gurtung mitumfasst.2. Steam generator according to claim 1, characterized in that each of the support systems comprises a plurality of two-armed levers, each of which is supported by a pendulum support and a tension element on a horizontally extending frame of the boiler frame and is connected at one end to one of the tube walls of the steam generator , and that each of the support systems also includes a belt which is supported in the horizontal main directions on the boiler frame and surrounds the associated vertical train. 3. Dampferzeuger nach Anspruch 2, dadurch gekennzeichnet, dass jede Pendelstütze und/oder jedes Zugelement in Längsrichtung federnd ausgebildet ist.3. Steam generator according to claim 2, characterized in that each pendulum support and / or each tension element is resilient in the longitudinal direction. 4. Dampferzeuger nach Anspruch 2 oder 3, dadurch gekennzeichnet, dass die Länge der Pendelstützen und/oder der Zugelemente einstellbar ist.4. Steam generator according to claim 2 or 3, characterized in that the length of the pendulum supports and / or the tension elements is adjustable. 5. Dampferzeuger nach Anspruch 3 und 4, dadurch gekennzeichnet, dass hydraulische Pressen vorgesehen sind, um die Federn beim Einstellen der Länge der Pendelstützen oder der Zugelemente zu spannen.5. Steam generator according to claim 3 and 4, characterized in that hydraulic presses are provided to tension the springs when adjusting the length of the pendulum supports or the tension elements. 6. Dampferzeuger nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass zwischen den Rohrwänden und jedem der zweiarmigen Hebel mehrere Blechstreifen und eine Waaglasche vorgesehen sind.6. Steam generator according to one of claims 1 to 5, characterized in that between the tube walls and each of the two-armed lever, a plurality of sheet metal strips and a weighing plate are provided. 7. Dampferzeuger nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass die Rohre des zweiten Vertikalzuges und des Querzuges dicht verschweisst sind. 7 . Steam generator according to one of claims 1 to 6, characterized in that the tubes of the second vertical train and the transverse train are tightly welded.
EP81107837A 1981-09-09 1981-10-02 Steam generator with two vertical gas passages connected by a transverse gas passage Expired EP0073851B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH581281 1981-09-09
CH5812/81 1981-09-09

Publications (3)

Publication Number Publication Date
EP0073851A1 true EP0073851A1 (en) 1983-03-16
EP0073851B1 EP0073851B1 (en) 1985-01-16
EP0073851B2 EP0073851B2 (en) 1988-12-07

Family

ID=4299720

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81107837A Expired EP0073851B2 (en) 1981-09-09 1981-10-02 Steam generator with two vertical gas passages connected by a transverse gas passage

Country Status (6)

Country Link
US (1) US4428329A (en)
EP (1) EP0073851B2 (en)
JP (1) JPS5860105A (en)
CA (1) CA1201026A (en)
DE (1) DE3168347D1 (en)
FI (1) FI69920C (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0764814A1 (en) * 1995-09-21 1997-03-26 GEC ALSTHOM Stein Industrie Connecting device for two parts of a boiler
DE19909267A1 (en) * 1999-03-03 2000-09-07 Abb Alstom Power Ch Ag Boiler suspension, e.g. for steam power station, has measurement instrument that registers boiler vertical expansion, interacts with hydraulic cylinder to oppose downward expansion
WO2014053809A2 (en) * 2012-10-04 2014-04-10 Doosan Babcock Limited Boiler structure and method of assembly
WO2014199016A2 (en) * 2013-06-11 2014-12-18 Andritz Oy Method and system for monitoring the mass changes of heat exchangers of a steam boiler
WO2019076427A1 (en) 2017-10-16 2019-04-25 Sumitomo SHI FW Energia Oy A boiler construction
WO2019086112A1 (en) 2017-11-01 2019-05-09 Sumitomo SHI FW Energia Oy A boiler system with a support construction

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4940025A (en) * 1989-03-06 1990-07-10 Westinghouse Electric Corp. Steam generator upper support having thermal displacement compensation
US5722354A (en) * 1995-12-08 1998-03-03 Db Riley, Inc. Heat recovery steam generating apparatus
KR100444497B1 (en) * 1997-05-09 2004-08-16 지멘스 악티엔게젤샤프트 Continuous steam generator
US8520794B2 (en) * 2005-06-16 2013-08-27 General Electric Company Method and device for facilitating a uniform loading condition for a plurality of support members supporting a steam dryer in a nuclear reactor

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2312876A (en) * 1942-01-23 1943-03-02 Gen Electric Elastic fluid generator
FR1387959A (en) * 1963-12-18 1965-02-05 Babcock & Wilcox Co Improvements to fluid heating units with fluid cooled walls
US3612006A (en) * 1969-11-26 1971-10-12 Babcock & Wilcox Co Expansion seal
DE1551052A1 (en) * 1964-03-14 1972-01-05 Siemens Ag Flow boiler
FR2184353A5 (en) * 1972-05-10 1973-12-21 Waagner Biro Ag
FR2348435A1 (en) * 1976-04-13 1977-11-10 Sulzer Ag FLEXIBLE SUSPENSION DEVICE FOR A STEAM GENERATOR TUBULAR WALL

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH577117A5 (en) * 1974-04-29 1976-06-30 Sulzer Ag
DE2821567A1 (en) * 1978-05-17 1979-11-22 Kraftwerk Union Ag CONTINUOUS STEAM GENERATOR IN MULTIPLE CONSTRUCTION WITH BACK PANEL HANGED ON SUPPORT PIPES

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2312876A (en) * 1942-01-23 1943-03-02 Gen Electric Elastic fluid generator
FR1387959A (en) * 1963-12-18 1965-02-05 Babcock & Wilcox Co Improvements to fluid heating units with fluid cooled walls
DE1551052A1 (en) * 1964-03-14 1972-01-05 Siemens Ag Flow boiler
US3612006A (en) * 1969-11-26 1971-10-12 Babcock & Wilcox Co Expansion seal
FR2184353A5 (en) * 1972-05-10 1973-12-21 Waagner Biro Ag
FR2348435A1 (en) * 1976-04-13 1977-11-10 Sulzer Ag FLEXIBLE SUSPENSION DEVICE FOR A STEAM GENERATOR TUBULAR WALL

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2739179A1 (en) * 1995-09-21 1997-03-28 Gec Alsthom Stein Ind DEVICE FOR CONNECTING TWO PARTS OF A BOILER
EP0764814A1 (en) * 1995-09-21 1997-03-26 GEC ALSTHOM Stein Industrie Connecting device for two parts of a boiler
DE19909267B4 (en) * 1999-03-03 2015-07-09 Alstom Technology Ltd. boiler suspension
DE19909267A1 (en) * 1999-03-03 2000-09-07 Abb Alstom Power Ch Ag Boiler suspension, e.g. for steam power station, has measurement instrument that registers boiler vertical expansion, interacts with hydraulic cylinder to oppose downward expansion
WO2014053809A2 (en) * 2012-10-04 2014-04-10 Doosan Babcock Limited Boiler structure and method of assembly
WO2014053809A3 (en) * 2012-10-04 2014-12-31 Doosan Babcock Limited Boiler structure and method of assembly
US20150241054A1 (en) * 2012-10-04 2015-08-27 Doosan Babcock Limited Boiler structure and method of assembly
WO2014199016A2 (en) * 2013-06-11 2014-12-18 Andritz Oy Method and system for monitoring the mass changes of heat exchangers of a steam boiler
WO2014199016A3 (en) * 2013-06-11 2015-04-09 Andritz Oy Method and system for monitoring the mass changes of heat exchangers of a steam boiler
RU2658720C2 (en) * 2013-06-11 2018-06-22 Андритц Ой Method and system for monitoring mass changes of heat exchangers of steam boiler
US10132495B2 (en) 2013-06-11 2018-11-20 Andritz Oy Method and system for monitoring the mass changes of heat exchangers of a steam boiler
WO2019076427A1 (en) 2017-10-16 2019-04-25 Sumitomo SHI FW Energia Oy A boiler construction
US11209158B2 (en) 2017-10-16 2021-12-28 Sumitomo SHI FW Energia Oy Boiler construction having a boiler pressure body support system
EP3982043A1 (en) 2017-10-16 2022-04-13 Sumitomo SHI FW Energia Oy A boiler construction
WO2019086112A1 (en) 2017-11-01 2019-05-09 Sumitomo SHI FW Energia Oy A boiler system with a support construction
US11143398B2 (en) 2017-11-01 2021-10-12 Sumitomo SHI FW Energia Oy Boiler system with a support construction

Also Published As

Publication number Publication date
CA1201026A (en) 1986-02-25
EP0073851B2 (en) 1988-12-07
FI69920B (en) 1985-12-31
JPS5860105A (en) 1983-04-09
DE3168347D1 (en) 1985-02-28
US4428329A (en) 1984-01-31
EP0073851B1 (en) 1985-01-16
FI822644A0 (en) 1982-07-28
FI69920C (en) 1986-05-26
FI822644L (en) 1983-03-10

Similar Documents

Publication Publication Date Title
DE60103389T2 (en) A HEAT EXCHANGE
EP2132493B1 (en) Parabolic trough collector
DE3044897A1 (en) CLAMPING SYSTEM TO AVOID HARMFUL TENSION AND SHEARING TENSIONS IN ANY MULTI-LAYER WALLWORK DISKS
DE3840460C2 (en)
WO2005005902A1 (en) Exhaust steam line for steam plants
EP0073851B2 (en) Steam generator with two vertical gas passages connected by a transverse gas passage
DE1273737B (en) Arrangement for supporting combustion chamber walls with the help of reinforcement struts
EP0213380B1 (en) Soot blower
CH670501A5 (en)
DE1501618C3 (en) Heat exchanger
EP0137119B1 (en) Steam generator
DE3141734C2 (en)
EP0064092A1 (en) Fluidized-bed steam generator
DE69115930T2 (en) SCAFFOLDING FOR WORKING BED CONTAINERS
DE4101918A1 (en) COMBUSTION PLANT
DE3911257C2 (en) Heat exchanger
DE69025454T2 (en) Pressure fluidized bed boiler
EP0548561A1 (en) Heated transport tank
EP3134676A1 (en) Heat exchanger
EP0132619A2 (en) Axial compensator
CH637496A5 (en) CONTROL ROD DRIVE WITH EARTHQUAKE-PROOF SUPPORT FOR CORE REACTORS.
DE3017705A1 (en) SUPPORT CONSTRUCTION FOR A HOT GAS CHANNEL
CH632583A5 (en) PIPE BUNDLE FOR HEAT TRANSFER THROUGH TOUCH.
EP0080173B1 (en) Steam generator, particularly of the once-through type
DE1426718A1 (en) Flow boiler

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19811002

AK Designated contracting states

Designated state(s): BE DE FR GB IT SE

RBV Designated contracting states (corrected)

Designated state(s): BE DE FR GB IT SE

ITF It: translation for a ep patent filed

Owner name: ING. ZINI MARANESI & C. S.R.L.

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Designated state(s): BE DE FR GB IT SE

REF Corresponds to:

Ref document number: 3168347

Country of ref document: DE

Date of ref document: 19850228

ET Fr: translation filed
PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

26 Opposition filed

Opponent name: KRAFTWERK UNION AKTIENGESELLSCHAFT

Effective date: 19851016

PLAB Opposition data, opponent's data or that of the opponent's representative modified

Free format text: ORIGINAL CODE: 0009299OPPO

R26 Opposition filed (corrected)

Opponent name: DELETED BERGES, PIETER JOZEF R. 106(3), 102(1) 24.

Effective date: 19851016

PLAB Opposition data, opponent's data or that of the opponent's representative modified

Free format text: ORIGINAL CODE: 0009299OPPO

R26 Opposition filed (corrected)

Opponent name: SIEMENS AKTIENGESELLSCHAFT, BERLIN UND MUENCHEN

Effective date: 19851016

ITF It: translation for a ep patent filed

Owner name: ING. ZINI MARANESI & C. S.R.L.

PUAH Patent maintained in amended form

Free format text: ORIGINAL CODE: 0009272

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: PATENT MAINTAINED AS AMENDED

27A Patent maintained in amended form

Effective date: 19881207

AK Designated contracting states

Kind code of ref document: B2

Designated state(s): BE DE FR GB IT SE

ET3 Fr: translation filed ** decision concerning opposition
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19900921

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19901012

Year of fee payment: 10

Ref country code: FR

Payment date: 19901012

Year of fee payment: 10

ITTA It: last paid annual fee
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19901108

Year of fee payment: 10

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19901130

Year of fee payment: 10

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19911002

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19911003

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BE

Effective date: 19911031

BERE Be: lapsed

Owner name: GEBRUDER SULZER A.G.

Effective date: 19911031

GBPC Gb: european patent ceased through non-payment of renewal fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19920630

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19920701

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

EUG Se: european patent has lapsed

Ref document number: 81107837.7

Effective date: 19920510