EP0080173B1 - Steam generator, particularly of the once-through type - Google Patents

Steam generator, particularly of the once-through type Download PDF

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Publication number
EP0080173B1
EP0080173B1 EP82110668A EP82110668A EP0080173B1 EP 0080173 B1 EP0080173 B1 EP 0080173B1 EP 82110668 A EP82110668 A EP 82110668A EP 82110668 A EP82110668 A EP 82110668A EP 0080173 B1 EP0080173 B1 EP 0080173B1
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EP
European Patent Office
Prior art keywords
combustion chamber
steam generator
chamber wall
wall
support
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Expired
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EP82110668A
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German (de)
French (fr)
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EP0080173A2 (en
EP0080173A3 (en
Inventor
Rudolf Kral
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Kraftwerk Union AG
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Kraftwerk Union AG
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Priority to AT82110668T priority Critical patent/ATE16041T1/en
Publication of EP0080173A2 publication Critical patent/EP0080173A2/en
Publication of EP0080173A3 publication Critical patent/EP0080173A3/en
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Publication of EP0080173B1 publication Critical patent/EP0080173B1/en
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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
    • F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
    • F22B37/40—Arrangements of partition walls in flues of steam boilers, e.g. built-up from baffles
    • 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
    • F22B37/62—Component parts or details of steam boilers specially adapted for steam boilers of forced-flow type
    • F22B37/64—Mounting of, or supporting arrangements for, tube units
    • F22B37/645—Mounting of, or supporting arrangements for, tube units involving upper vertically-disposed water tubes and lower horizontally- or helically disposed water tubes

Definitions

  • the invention relates to a steam generator, in particular once-through steam generator, with a combustion chamber which has a combustion chamber wall formed by pipes welded to one another and in which there is an intermediate wall which hangs on an intermediate wall support arranged in a combustion chamber cross section, the ends of which depend on the outside of the combustion chamber wall a cross member is assigned.
  • Such a steam generator is known from Figure 6 on page 636 in “VGB Kraftwerkstechnik 58”, Issue 9, September 1978.
  • the intermediate wall is formed by two tube walls arranged at a distance from one another.
  • the intermediate wall girder is rigidly attached to the cross girders.
  • the crossbeams are in turn attached to support tubes by means of constant hangers, which are fastened to an outer steam generator frame.
  • the constant hangers are spring assemblies that are designed for a specific weight of the partition.
  • this weight of the intermediate wall does not remain constant, but it can in particular increase, for example, through ash deposition on the intermediate wall, or both increase and decrease due to different water content in the intermediate wall.
  • the constant hangers do not take up the differences between the respective actual partition wall weight and the partition wall weight for which they are designed, but these weight differences lead to mechanical stresses at the connection points between the partition wall and the combustion chamber wall, where they damage both the combustion chamber wall and the Partition can lead.
  • the invention has for its object to avoid such mechanical stresses caused by changes in the weight of the intermediate wall at the connection points between the combustion chamber wall and the intermediate wall.
  • a steam generator of the type mentioned is characterized according to the invention in that the intermediate wall support is movably supported on the cross members in its longitudinal direction and that support bands are attached to the cross members, which are attached with their upper ends outside on the combustion chamber wall.
  • a uniform distribution of the partition wall weight on the combustion chamber wall is achieved if the lengths and / or the cross sections of the support straps of each cross member are coordinated with one another in such a way that each support strap transfers at least approximately the same weight to the combustion chamber wall with its upper end.
  • the continuous steam generator according to FIGS. 1 to 4 has a combustion chamber with a membrane wall as the combustion chamber wall, which is constructed from fin tubes welded to one another on the fins and which hangs on an outer steam generator frame (not shown).
  • An upper part 2 of the combustion chamber wall is vertically drilled, a lower part 3 of this combustion chamber wall is drilled at an angle.
  • Within the combustion chamber in the obliquely tubular combustion chamber part formed by the lower part 3 of the combustion chamber wall, there is an intermediate wall 4 which has two tube walls 4a and 4b which are arranged at a distance from one another and are also formed as a membrane wall from fin tubes welded to one another. Both tube walls 4a and 4b are connected to one another at their upper and lower edges, forming an intermediate space between the two tube walls 4a and 4b.
  • the intermediate wall 4 with its tube walls 4a and 4b is connected to the part 3 of the combustion chamber wall with an oblique tube. It hangs on an intermediate wall support 5 which is arranged in a cross section of the combustion chamber between the two tube walls 4a and 4b. On the outside of the combustion chamber, this intermediate wall support rests with each of its two ends via a roller bearing consisting of a ball bearing 6 on the center of a cross member 7, which is located outside the combustion chamber on the outside of the combustion chamber wall and which is arranged transversely to the intermediate wall support 5.
  • vertical tension bands 8 made of steel are attached to the outside of the combustion chamber wall, the upper ends of which are welded to the part 2 of the combustion chamber wall with vertical tubing and at a large number of points on part 3 of the combustion chamber wall with oblique tubing.
  • three vertically directed steel straps 9 are attached on both sides of the top of the cross members 7 and are distributed evenly over the length of the cross members 7, each of which is welded with its upper ends to a tension band 8.
  • the carrying tapes 9 all have the same initial length, but their cross-section is smaller the closer they are to the center of the cross member 7.
  • the cross sections F of the individual support straps 9 each located on a cross member 7 are adapted to one another such that the length differences ⁇ L of the individual support straps 9 corresponding to the deflection of the cross member 7 cause the same weight of the intermediate wall 4 Correspond to tensile forces P in all carrying bands 9.
  • each of the six carrying bands 9 located on each cross member 7 transmits the same loading force P, caused by the weight of the intermediate wall 4, into the part 2 of the combustion chamber wall with vertical bores, i. H. the combustion chamber wall is evenly loaded by the weight of the intermediate wall 4. Changes in weight of the intermediate wall 4 are also transmitted uniformly to the combustion chamber wall. They do not lead to any mechanical stresses at the connection points between the combustion chamber wall and the intermediate wall 4.
  • each vertical support band 9 made of steel is also attached uniformly distributed over the length of the cross members 7 on their upper side.
  • the starting length of the carrier tapes 9 is greater the closer they are to the center of the cross members 7.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion Of Fluid Fuel (AREA)
  • Detergent Compositions (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
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Abstract

Steam generator including a combustion chamber having a combustion chamber wall being formed of welded-together tubes and having an outer surface, cross beams disposed on the outer surface of the wall, a partition beam being longitudinally movably supported at one of the cross beam and being extended across the combustion chamber, a partition suspended from the partition beam in the combustion chamber, and support bands being attached to the cross beams and having upper ends being fastened to the outer surface of the combustion chamber wall.

Description

Die Erfindung betrifft einen Dampferzeuger, insbesondere Durchlaufdampferzeuger, mit einer Brennkammer, die eine durch miteinander verschweißte Rohre gebildete Brennkammerwand hat und in der sich eine Zwischenwand befindet, die an einem in einem Brennkammerquerschnitt angeordneten Zwischenwandträger hängt, dem an seinen Enden auf der Außenseite der Brennkammerwand je ein Querträger zugeordnet ist.The invention relates to a steam generator, in particular once-through steam generator, with a combustion chamber which has a combustion chamber wall formed by pipes welded to one another and in which there is an intermediate wall which hangs on an intermediate wall support arranged in a combustion chamber cross section, the ends of which depend on the outside of the combustion chamber wall a cross member is assigned.

Ein derartiger Dampferzeuger ist aus Bild 6 auf Seite 636 in « VGB Kraftwerkstechnik 58 », Heft 9, September 1978, bekannt. Bei diesem bekannten Dampferzeuger ist die Zwischenwand durch zwei mit Abstand voneinander angeordnete Rohrwände gebildet. Der Zwischenwandträger ist starr an den Querträgern befestigt. Die Querträger sind ihrerseits über Konstanthänger an Tragrohren angehängt, die an einem äußeren Dampferzeugergerüst befestigt sind.Such a steam generator is known from Figure 6 on page 636 in “VGB Kraftwerkstechnik 58”, Issue 9, September 1978. In this known steam generator, the intermediate wall is formed by two tube walls arranged at a distance from one another. The intermediate wall girder is rigidly attached to the cross girders. The crossbeams are in turn attached to support tubes by means of constant hangers, which are fastened to an outer steam generator frame.

Die Konstanthänger sind Federpakete, die für ein ganz bestimmtes Gewicht der Zwischenwand ausgelegt sind. Dieses Gewicht der Zwischenwand bleibt jedoch nicht konstant, sondern es kann sich beispielsweise durch Ascheablagerung auf der Zwischenwand insbesondere vergrößern oder durch verschiedenen Wasserinhalt in der Zwischenwand sowohl vergrößern als auch verkleinern. Die Konstanthänger nehmen die Differenzen zwischen dem jeweils tatsächlichen Zwischenwandgewicht und dem Zwischenwandgewicht, für das sie ausgelegt sind, nicht auf, sondern diese Gewichtsdifferenzen führen zu mechanischen Spannungen an den Verbindungsstellen zwischen der Zwischenwand und der Brennkammerwand, wo sie zu Beschädigungen sowohl der Brennkammerwand als auch der Zwischenwand führen können.The constant hangers are spring assemblies that are designed for a specific weight of the partition. However, this weight of the intermediate wall does not remain constant, but it can in particular increase, for example, through ash deposition on the intermediate wall, or both increase and decrease due to different water content in the intermediate wall. The constant hangers do not take up the differences between the respective actual partition wall weight and the partition wall weight for which they are designed, but these weight differences lead to mechanical stresses at the connection points between the partition wall and the combustion chamber wall, where they damage both the combustion chamber wall and the Partition can lead.

Der Erfindung liegt die Aufgabe zugrunde, sol-' che durch Veränderungen des Gewichts der Zwischenwand hervorgerufenen mechanischen Spannungen an den Verbindungsstellen zwischen der Brennkammerwand und der Zwischenwand zu vermeiden.The invention has for its object to avoid such mechanical stresses caused by changes in the weight of the intermediate wall at the connection points between the combustion chamber wall and the intermediate wall.

Zur Lösung dieser Aufgabe ist ein Dampferzeuger der eingangs erwähnten Art erfindungsgemäß dadurch gekennzeichnet, daß der Zwischenwandträger an den Querträgern in seiner Längsrichtung beweglich gehaltert ist und daß an den Querträgern Tragbänder angebracht sind, die mit ihren Oberenden außen an der Brennkammerwand befestigt sind.To solve this problem, a steam generator of the type mentioned is characterized according to the invention in that the intermediate wall support is movably supported on the cross members in its longitudinal direction and that support bands are attached to the cross members, which are attached with their upper ends outside on the combustion chamber wall.

Hierdurch wird erreicht, daß Differenzen des Ist-Gewichts der Zwischenwand zu einem vorgegebenen Ausgangsgewicht über die Querträger und die Tragbänder auf die Brennkammerwand übertragen werden und nicht von den Verbindungsstellen der Brennkammerwand mit der Zwischenwand aufgenommen werden müssen. Dadurch können auch Änderungen des Gewichts der Zwischenwand keine mechanischen Spannungen an diesen Verbindungsstellen hervorrufen.This ensures that differences in the actual weight of the intermediate wall to a predetermined starting weight are transmitted to the combustion chamber wall via the cross members and the support tapes and do not have to be absorbed by the connection points of the combustion chamber wall to the intermediate wall. As a result, changes in the weight of the partition wall cannot cause mechanical stresses at these connection points.

Eine gleichmäßige Verteilung des Zwischenwandgewichts auf die Brennkammerwand wird erzielt, wenn in vorteilhafter Weise die Längen und/oder die Querschnitte der Tragbänder eines jeden Querträgers so aufeinander abgestimmt sind, daß jedes Tragband mit seinem Oberende wenigstens annähernd das gleiche Gewicht auf die Brennkammerwand überträgt.A uniform distribution of the partition wall weight on the combustion chamber wall is achieved if the lengths and / or the cross sections of the support straps of each cross member are coordinated with one another in such a way that each support strap transfers at least approximately the same weight to the combustion chamber wall with its upper end.

Es ist günstig, wenn an den Querträgern mehr als zwei Tragbänder über die Länge des jeweiligen Querträgers verteilt angebracht sind. Dadurch werden die durch das Gewicht der Zwischenwand hervorgerufenen Kräfte auf mehrere Stellen der Brennkammerwand verteilt.It is advantageous if more than two support straps are attached to the crossbeams distributed over the length of the respective crossbeam. As a result, the forces caused by the weight of the intermediate wall are distributed over several locations on the combustion chamber wall.

Die Erfindung und ihre Vorteile seien anhand der Zeichnung an zwei Ausführungsbeispielen näher erläutert :

  • Figur 1 zeigt die Seitenansicht einer ersten Ausführungsform eines erfindungsgemäßen Durchlaufdampferzeugers,
  • Figur 2 zeigt einen Längsschnitt durch den Durchlaufdampferzeuger nach Fig. 1;
  • Figur 3 zeigt die Seitenansicht einer zweiten Ausführungsform eines erfindungsgemäßen Durchlaufdampferzeugers,
  • Figur 4 zeigt einen Längsschnitt durch den Durchlaufdampferzeuger nach Fig. 3.
The invention and its advantages are explained in more detail with reference to the drawing using two exemplary embodiments:
  • FIG. 1 shows the side view of a first embodiment of a once-through steam generator according to the invention,
  • FIG. 2 shows a longitudinal section through the once-through steam generator according to FIG. 1;
  • FIG. 3 shows the side view of a second embodiment of a once-through steam generator according to the invention,
  • FIG. 4 shows a longitudinal section through the once-through steam generator according to FIG. 3.

Die Durchlaufdampferzeuger nach den Fig. 1 bis 4 weisen eine Brennkammer mit einer Membranwand als Brennkammerwand auf, die aus an den Flossen miteinander verschweißten Flossenrohren aufgebaut ist und die an einem nicht dargestellen äußeren Dampferzeugergerüst hängt. Ein oberer Teil 2 der Brennkammerwand ist senkrecht berohrt, ein unterer Teil 3 dieser Brennkammerwand ist schräg berohrt. Innerhalb der Brennkammer befindet sich im vom unteren Teil 3 der Brennkammerwand gebildeten, schräg berohrten Brennkammerteil eine Zwischenwand 4, die zwei mit Abstand voneinander angeordnete, ebenfalls als Membranwand aus miteinander verschweißten Flossenrohren ausgebildete Rohrwände 4a und 4b aufweist. Beide Rohrwände 4a und 4b sind an ihren Ober- und Unterkanten unter Ausbildung eines Zwischenraumes zwischen den beiden Rohrwänden 4a und 4b miteinander verbunden.The continuous steam generator according to FIGS. 1 to 4 has a combustion chamber with a membrane wall as the combustion chamber wall, which is constructed from fin tubes welded to one another on the fins and which hangs on an outer steam generator frame (not shown). An upper part 2 of the combustion chamber wall is vertically drilled, a lower part 3 of this combustion chamber wall is drilled at an angle. Within the combustion chamber, in the obliquely tubular combustion chamber part formed by the lower part 3 of the combustion chamber wall, there is an intermediate wall 4 which has two tube walls 4a and 4b which are arranged at a distance from one another and are also formed as a membrane wall from fin tubes welded to one another. Both tube walls 4a and 4b are connected to one another at their upper and lower edges, forming an intermediate space between the two tube walls 4a and 4b.

Die Zwischenwand 4 mit ihren Rohrwänden 4a und 4b ist mit dem schräg berohrten Teil 3 der Brennkammerwand verbunden. Sie hängt an einem Zwischenwandträger 5, der in einem Querschnitt der Brennkammer zwischen den beiden Rohrwänden 4a und 4b befindlich angeordnet ist. Auf der Außenseite der Brennkammer ruht dieser Zwischenwandträger mit jedem seiner beiden Enden über ein aus einem Kugellager 6 bestehenden Roll-Lager auf der Mitte eines Querträgers 7, der sich außerhalb der Brennkammer auf der Außenseite der Brennkammerwand befindet und der quer zum Zwischenwandträger 5 angeordnet ist.The intermediate wall 4 with its tube walls 4a and 4b is connected to the part 3 of the combustion chamber wall with an oblique tube. It hangs on an intermediate wall support 5 which is arranged in a cross section of the combustion chamber between the two tube walls 4a and 4b. On the outside of the combustion chamber, this intermediate wall support rests with each of its two ends via a roller bearing consisting of a ball bearing 6 on the center of a cross member 7, which is located outside the combustion chamber on the outside of the combustion chamber wall and which is arranged transversely to the intermediate wall support 5.

Bei der Ausführungsform nach den Fig. 1 und 2 sind an der Außenseite der Brennkammerwand vertikale Zugbänder 8 aus Stahl angebracht, die mit ihrem Oberende am Teil 2 der Brennkammerwand mit Senkrechtberohrung und an einer Vielzahl von Stellen am Teil 3 der Brennkammerwand mit Schrägberohrung festgeschweißt sind. An den Querträgern 7 sind auf der Oberseite gleichmäßig über die Länge der Querträger 7 verteilt beiderseits der Mitte der Querträger 7 jeweils drei vertikal gerichtete Tragbänder 9 aus Stahl angebracht, die mit ihren Oberenden jeweils an einem Zugband 8 festgeschweißt sind.In the embodiment according to FIGS. 1 and 2, vertical tension bands 8 made of steel are attached to the outside of the combustion chamber wall, the upper ends of which are welded to the part 2 of the combustion chamber wall with vertical tubing and at a large number of points on part 3 of the combustion chamber wall with oblique tubing. On the top of the cross members 7, three vertically directed steel straps 9 are attached on both sides of the top of the cross members 7 and are distributed evenly over the length of the cross members 7, each of which is welded with its upper ends to a tension band 8.

Die Tragbänder 9 haben alle gleiche Ausgangslänge, ihr Querschnitt is jedoch um so geringer, je näher sie sich an der Mitte der Querträger 7 befinden.The carrying tapes 9 all have the same initial length, but their cross-section is smaller the closer they are to the center of the cross member 7.

Für die Dehnung der Tragbänder 9 durch das Gewicht der Zwischenwand 4 gilt das Hookesche Gesetz ΔL = P - a - L/F, in dem ΔL die Längendifferenz, 1/a der Elastizitätsmodul, L die Ausgangslänge und F der Ausgangsquerschnitt des jeweiligen Tragbandes 9 sind und P die an diesem Tragband 9 angreifende, vom Gewicht der Zwischenwand 4 ausgehende Zugkraft bedeuten. Unter dem Gewicht der in der Mitte der Querträger 7 ruhenden Last der Zwischenwand 4 biegend sich die Querträger 7 nach unten durch. Da die Ausgangslänge L für alle Tragbänder 9 gleich ist, sind die Querschnitte F der einzelnen jeweils an einem Querträger 7 befindlichen Tragbänder 9 so einander angepaßt, daß die der Durchbiegung der Querträger 7 entsprechenden Längendifferenzen ΔL der einzelnen Tragbänder 9 gleichen von Gewicht der Zwischenwand 4 verursachten Zugkräften P in allen Tragbändern 9 entsprechen. Dies bedeutet, daß jedes der sechs an jedem Querträger 7 befindlichen Tragbänder 9 die gleiche durch das Gewicht der Zwischenwand 4 hervorgerufene Belastungskraft P in den Teil 2 der Brennkammerwand mit Senkrechtberohrung überträgt, d. h. die Brennkammerwand wird durch das Gewicht der Zwischenwand 4 gleichmäßig belastet. Gewichtsveränderungen der Zwischenwand 4 werden ebenfalls gleichmäßig auf die Brennkammerwand übertragen. Sie führen zu keinen mechanischen Spannungen an den Verbindungsstellen zwischen der Brennkammerwand und der Zwischenwand 4.Hooke's law ΔL = P - a - L / F applies to the expansion of the support straps 9 by the weight of the intermediate wall 4, in which ΔL the length difference, 1 / a the modulus of elasticity, L the initial length and F the initial cross section of the respective support tape 9 and P mean the tensile force acting on this carrying band 9 and originating from the weight of the intermediate wall 4. Under the weight of the load of the intermediate wall 4 resting in the middle of the cross member 7, the cross member 7 bends downward. Since the initial length L is the same for all the support straps 9, the cross sections F of the individual support straps 9 each located on a cross member 7 are adapted to one another such that the length differences ΔL of the individual support straps 9 corresponding to the deflection of the cross member 7 cause the same weight of the intermediate wall 4 Correspond to tensile forces P in all carrying bands 9. This means that each of the six carrying bands 9 located on each cross member 7 transmits the same loading force P, caused by the weight of the intermediate wall 4, into the part 2 of the combustion chamber wall with vertical bores, i. H. the combustion chamber wall is evenly loaded by the weight of the intermediate wall 4. Changes in weight of the intermediate wall 4 are also transmitted uniformly to the combustion chamber wall. They do not lead to any mechanical stresses at the connection points between the combustion chamber wall and the intermediate wall 4.

In der Ausführungsform des erfindungsgemäßen Durchlaufdampferzeugers nach den Fig. 3 und 4 sind ebenfalls jeweils sechs vertikale Tragbänder 9 aus Stahl über die Länge der Querträger 7 gleichmäßig verteilt auf deren Oberseite angebracht. Die Tragbänder 9, von denen sich jeweils drei beiderseits der Mitte der Querträger 7 befinden, haben hier alle gleichen Querschnitt F und sind unmittelbar mit ihrem Oberende auf der Außenseite z. T. des senkrecht berohrten Teiles 2, z. T. des schräg berohrten Teiles 3 der Brennkammerwand angeschweißt. Die Ausgangslänge der Tragbänder 9 ist um so größer, je näher sie sich an der Mitte der Querträger 7 befinden.In the embodiment of the once-through steam generator according to the invention according to FIGS. 3 and 4, six vertical support bands 9 made of steel are also attached uniformly distributed over the length of the cross members 7 on their upper side. The support straps 9, of which there are three on each side of the center of the cross member 7, all have the same cross section F and are directly with their upper end on the outside z. T. of the vertically-drilled part 2, z. T. of the obliquely tubular part 3 of the combustion chamber wall welded. The starting length of the carrier tapes 9 is greater the closer they are to the center of the cross members 7.

Da alle Tragbänder 9 hier gleichen Querschnitt F haben, sind ihre Längen L so aufeinander abgestimmt, daß die Längendifferenzen ΔL der einzelnen Tragbänder 9, die der Durchbiegung der Querträger 7 durch die Last der Zwischenwand 4 entsprechen, für alle Tragbänder 9 nach dem Hookeschen Gesetzt der gleichen durch das Gewicht der Zwischenwand 4 hervorgerufenen Zugkraft P entsprechen. Dadurch ist ebenfalls gewährleistet, daß das Gewicht der Zwischenwand 4 und auch Änderungen dieses Gewichtes durch die Tragbänder 9 gleichmäßig auf die Brennkammerwand des Durchlaufdampferzeugers übertragen werden und nicht zu mechanischen Spannungen an den Verbindungsstellen zwischen der Brennkammerwand und der Zwischenwand 4 führen.Since all straps 9 here have the same cross section F, their lengths L are coordinated so that the length differences ΔL of the individual straps 9, which correspond to the deflection of the cross member 7 by the load of the intermediate wall 4, for all straps 9 according to the Hookesch law correspond to the tensile force P caused by the weight of the intermediate wall 4. This also ensures that the weight of the intermediate wall 4 and changes in this weight are evenly transmitted by the support straps 9 to the combustion chamber wall of the continuous steam generator and do not lead to mechanical stresses at the connection points between the combustion chamber wall and the intermediate wall 4.

Claims (7)

1. Steam generator, in particular a throughflow steam generator, comprising a combustion chamber which has a combustion chamber wall (2 ; 3) defined by tubes welded together, and in which there is a partition (4) which is suspended from a partition support (5) arranged in the cross section of the combustion chamber, with which there is associated respectively with each end externally of the combustion chamber wall a transverse support (7), characterised in that the partition support (5) is mounted on the transverse supports (7) so as to be longitudinally movable, and in that on the transverse supports (7) carrying straps (9) are fitted which are secured with their upper ends to the outside of the combustion chamber wall (2 ; 3).
2. Steam generator according to claim 1, characterised in that the lengths and/or the cross sections of the carrying straps (9) of each transverse support (7) are so proportioned to each other that each carrying strap (9) transfers at least approximately the same weight to the combustion chamber wall (2 ; 3) with its upper end.
3. Steam generator according to claim 1, characterised in that on the transverse supports (7) more than two carrying straps (9) are arranged to be distributed over the length of the respective transverse support (7).
4. Steam generator according to claim 1, characterised in that the carrying straps (9) are welded by their upper ends respectively to a tension rod (8) which is secured to the exterior of the combustion chamber wall (2 ; 3).
5. Steam generator according to claim 3, characterised in that the cross section of the carrying straps (9) is smaller the closer they are to the centre of the respective transverse support (7).
6. Steam generator according to claim 3, characterised in that the length of the carrying straps (9) is greater the closer they are to the centre of the respective transverse support (7).
7. Steam generator according to claim 1, characterised in that the partition support (5) is mounted on the transverse supports (7) by means of a roller bearing (6).
EP82110668A 1981-11-25 1982-11-18 Steam generator, particularly of the once-through type Expired EP0080173B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82110668T ATE16041T1 (en) 1981-11-25 1982-11-18 STEAM GENERATORS, IN PARTICULAR CONTINUOUS STEAM GENERATORS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3146742A DE3146742C2 (en) 1981-11-25 1981-11-25 Steam generators, in particular once-through steam generators
DE3146742 1981-11-25

Publications (3)

Publication Number Publication Date
EP0080173A2 EP0080173A2 (en) 1983-06-01
EP0080173A3 EP0080173A3 (en) 1984-09-05
EP0080173B1 true EP0080173B1 (en) 1985-10-09

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US (1) US4579089A (en)
EP (1) EP0080173B1 (en)
JP (1) JPS5896902A (en)
AT (1) ATE16041T1 (en)
AU (1) AU556067B2 (en)
DE (2) DE3146742C2 (en)
DK (1) DK150393C (en)
ES (1) ES517644A0 (en)
FI (1) FI822952L (en)
ZA (1) ZA828652B (en)

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JPS60170507U (en) * 1984-04-16 1985-11-12 バブコツク日立株式会社 Boiler vertical strap connection structure
DE102011054718B4 (en) * 2011-10-21 2014-02-13 Hitachi Power Europe Gmbh Method for generating a voltage reduction in erected tube walls of a steam generator

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1248673B (en) * 1967-08-31 Vereinigte Kesselwerke Aktienge Seilschaft Dusseldorf Suspension of gas-tight welded fin tube walls with vertical tube guidance
DE2213229C2 (en) * 1972-03-18 1981-12-03 Deutsche Babcock Ag, 4200 Oberhausen Arrangement for the horizontal support of gas-tight welded pipe walls of a steam generator
US3896874A (en) * 1972-03-31 1975-07-29 Westinghouse Electric Corp Support system for serpentine tubes of a heat exchanger
US4000720A (en) * 1975-08-18 1977-01-04 The Babcock & Wilcox Company Vapor generator
DE2621189C3 (en) * 1976-05-13 1980-02-21 Balcke-Duerr Ag, 4030 Ratingen Device for suspending a pipe wall
CH634905A5 (en) * 1978-12-20 1983-02-28 Sulzer Ag STEAM GENERATOR WALL.
US4246872A (en) * 1979-04-30 1981-01-27 General Electric Company Heat exchanger tube support
DE2918835C3 (en) * 1979-05-10 1982-02-18 Balcke-Dürr AG, 4030 Ratingen Forced once-through steam generator
DE2919210C3 (en) * 1979-05-12 1981-10-29 Vereinigte Kesselwerke AG, 4000 Düsseldorf Boiler suspension

Also Published As

Publication number Publication date
EP0080173A2 (en) 1983-06-01
ES8308031A1 (en) 1983-08-16
DK150393B (en) 1987-02-16
JPH0321803B2 (en) 1991-03-25
FI822952A0 (en) 1982-08-25
DK150393C (en) 1987-10-12
JPS5896902A (en) 1983-06-09
ATE16041T1 (en) 1985-10-15
US4579089A (en) 1986-04-01
AU9083482A (en) 1983-06-02
DE3266867D1 (en) 1985-11-14
ZA828652B (en) 1983-09-28
DE3146742C2 (en) 1983-11-10
DE3146742A1 (en) 1983-06-01
DK522382A (en) 1983-05-26
AU556067B2 (en) 1986-10-23
FI822952L (en) 1983-05-26
ES517644A0 (en) 1983-08-16
EP0080173A3 (en) 1984-09-05

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