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EP0357590A1 - Waste heat boiler - Google Patents

Waste heat boiler Download PDF

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Publication number
EP0357590A1
EP0357590A1 EP89890214A EP89890214A EP0357590A1 EP 0357590 A1 EP0357590 A1 EP 0357590A1 EP 89890214 A EP89890214 A EP 89890214A EP 89890214 A EP89890214 A EP 89890214A EP 0357590 A1 EP0357590 A1 EP 0357590A1
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EP
European Patent Office
Prior art keywords
waste heat
circulation
heating surface
drum
water
Prior art date
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Granted
Application number
EP89890214A
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German (de)
French (fr)
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EP0357590B1 (en
Inventor
Kurt Budin
Georg Dipl.-Ing. Dr. Gasteiger
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AE ENERGIETECHNIK GMBH
Original Assignee
Simmering Graz Pauker AG
Austrian Energy and Environment SGP Waagner Biro GmbH
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Application filed by Simmering Graz Pauker AG, Austrian Energy and Environment SGP Waagner Biro GmbH filed Critical Simmering Graz Pauker AG
Publication of EP0357590A1 publication Critical patent/EP0357590A1/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B1/00—Methods of steam generation characterised by form of heating method
    • F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
    • F22B1/18—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines
    • F22B1/1807—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines using the exhaust gases of combustion engines
    • F22B1/1815—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines using the exhaust gases of combustion engines using the exhaust gases of gas-turbines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B29/00—Steam boilers of forced-flow type
    • F22B29/04—Steam boilers of forced-flow type of combined-circulation type, i.e. in which convection circulation due to the difference in specific gravity between cold and hot water is promoted by additional measures, e.g. by injecting pressure-water temporarily

Definitions

  • the invention relates to a waste heat steam generator in use behind a gas turbine, at least one drum being provided, which is integrated in a circulation system consisting of at least one downpipe, at least one evaporator heating surface and at least one riser pipe.
  • Waste heat steam generators are usually designed in two types, e.g. with natural circulation or forced circulation.
  • natural circulation the evaporator bundles are arranged in a horizontal flue gas duct in a vertical installation position and connected to at least one steam drum via downpipes and riser pipes.
  • the heating surface tubes from the superheater and economizer or from various other heating surfaces, if present, can be designed in a horizontal and / or vertical arrangement.
  • the heating surface pipes from the superheater, evaporator and economizer or other heating surfaces, if present, are arranged in a vertical flue gas duct in a horizontal installation position.
  • the evaporator heating surfaces are connected to at least one steam drum via downpipes, circulation pumps and risers.
  • the circulation pumps which ensure the water circulation in the evaporator, are associated with a cost and labor in the construction of the system and also form a disruptive factor.
  • the object of the present invention is to provide a waste heat steam generator which is simulated by a gas turbine and has the advantage that the water circulation is ensured without the use of a circulation pump.
  • an injector is provided in the downpipe system, which additionally feeds water in the flow direction in the downpipe system during the start-up phase.
  • the acceleration of the water circulation in the start-up phase can be achieved by an injector arranged in the riser pipe system, which feeds water into the riser pipe system in the flow direction.
  • a device for feeding steam, steam water mixture, gases such as nitrogen or the like into the riser pipe system is provided to accelerate the water circulation in the start-up phase.
  • a lockable connecting line can be provided between the inlet and the outlet header of the evaporator heating surfaces in order to accelerate the water circulation in the start-up phase.
  • the waste heat steam generator in question is provided in a vertical version with an evaporator heating surface 1, a drum 2, a down pipe system 3, a riser pipe system 4 and a feed line 5 with a feed pump 6.
  • the drum 2 is connected on the water side to the downpipe system 3, which opens into an inlet header 7 via a lower stroke 29, to which the pipe system of the evaporator heating surface 1 is connected.
  • the term "lower stroke” is to be understood so that the downpipes 3 are led down to a level which is lower than the inlet manifold 7 of the evaporator heating surface 1, so that the water flows from the bottom up before it enters the collector.
  • the "lower stroke” can thus be understood as a kind of water bag.
  • the evaporator heating surface 1 is connected on the outlet side to an outlet header 8, into which the riser pipe system 4 opens, which is connected to the steam chamber of the drum 2 via an overtravel 9, or directly via a pipe system 10 to the water chamber 11 of the drum 2.
  • overstroke is to be understood such that the steam / water mixture is introduced into the drum 2 higher than the level of the water in the drum.
  • the feed pump 6 promotes the like from a feed water tank. Via the feed line 5 water into the water space 11 for make-up.
  • an injector 12 is provided in the downpipe system 3, which is connected to a shut-off device 14, e.g. a valve, a tap or the like.
  • a shut-off device 14 e.g. a valve, a tap or the like.
  • provided line 13 is connected to the feed line 5.
  • a second variant provides a pump 16 in a bypass line 15 which connects the downpipe system 3 with an injector 17 Riser pipe system 4 connects.
  • This pump 16 feeds boiler water into the riser pipe system 4 in its direction of flow, as a result of which the water circulation is dynamically excited in the start-up phase and the excitation can be switched off again after the stationary circulation state has been reached by switching off the pump 16.
  • the riser pipe system 4 can be fed from a line 18 in which a shut-off device 19, e.g. a valve, a tap or the like. steam, nitrogen or another gas. This measure increases the thermosiphon effect and ensures an acceleration of the circulation process in the start-up phase.
  • a shut-off device 19 e.g. a valve, a tap or the like. steam, nitrogen or another gas.
  • a fourth variant sees one through a shut-off device 21, e.g. a valve, a tap or the like.
  • lockable line 22 which connects the inlet header 7 to the outlet header 8 of the evaporator heating surface 1.
  • the installation of such a lockable connecting line 22 between at least one inlet and at least one outlet header 7 or 8 of the evaporator heating surfaces 1 ensures that when the first vapor bubbles are formed, they stimulate the water circulation in the start-up phase by direct discharge into the riser pipe system 4.
  • thermosiphon effect of the water circulation can be advantageously influenced by suitable dimensioning of the pipe system of the evaporator heating surfaces 1 and of the downcomer and riser pipe systems 3 and 4.
  • the waste heat boiler design can be retained in the known embodiment and the use of circulation pumps in the circuit can be dispensed with.
  • the evaporator heating surface 1 is arranged in a horizontal arrangement in an exhaust gas duct 23, into which the exhaust gases of one or more gas turbines flow in the direction of arrow A, above and / or below the evaporator heating surface 1, a superheater heating surface 24 can also be provided in a horizontal arrangement, which is connected on the inlet side to the steam chamber 26 of the drum 2 via an inlet collector 30 and a line 25 and on the outlet side leads to the turbine via an outlet collector 31 and a line 27 provided with a shut-off device 28 .

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Control Of Steam Boilers And Waste-Gas Boilers (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

Abhitze-Dampferzeuger in vertikaler Bauart mit einer Trommel (2), welche in ein Umlaufsystem bestehend aus Fallrohren (3), Verdampferheizfläche (1) und Steigrohren (4) eingebunden ist. Zur Erzielung eines Wasserumlaufes ohne Verwendung einer Umwälzpumpe sind die Fallrohre (3) mit der Verdampferheizfläche (1) bzw. deren Eintrittssammler (7) über einen Unterhub (29) verbunden. Außerdem können die Steigrohre (4) mit dem Dampfraum (26) der Trommel (2) über einen Überhub (9) und oder mit dem Wasserraum (11) der Trommel (2) direkt verbunden sein. Vertical heat waste heat generator with a drum (2), which is integrated in a circulation system consisting of downpipes (3), evaporator heating surface (1) and risers (4). In order to achieve water circulation without using a circulation pump, the downpipes (3) are connected to the evaporator heating surface (1) or their inlet manifold (7) via a lower stroke (29). In addition, the risers (4) can be connected directly to the steam chamber (26) of the drum (2) via an overstroke (9) and or to the water chamber (11) of the drum (2).

Description

Die Erfindung betrifft einen Abhitze-Dampferzeuger in der Verwendung hinter einer Gasturbine, wobei mindestens eine Trommel vorgesehen ist, welche in ein Umlaufsystem, bestehend aus mindestens einem Fallrohr, mindestens einer Verdampferheizfläche und mindestens einem Steigrohr eingebunden ist.The invention relates to a waste heat steam generator in use behind a gas turbine, at least one drum being provided, which is integrated in a circulation system consisting of at least one downpipe, at least one evaporator heating surface and at least one riser pipe.

Üblicherweise werden Abhitze-Dampferzeuger in zwei Bauarten ausgeführt u.zw. mit Naturumlauf oder Zwangsumlauf. Beim Naturumlauf sind die Verdampferbündel in einem horizontalen Rauchgaskanal in vertikaler Einbaulage angeordnet und über Fallrohre und Steigrohre mit mindestens einer Dampftrommel verbunden. Hiebei können die Heizflächenrohre vom Überhitzer und Economizer bzw. von diversen anderen Heizflächen falls vorhanden, in waagrechter und bzw. oder senkrechter Anordnung ausgeführt sein.Waste heat steam generators are usually designed in two types, e.g. with natural circulation or forced circulation. In natural circulation, the evaporator bundles are arranged in a horizontal flue gas duct in a vertical installation position and connected to at least one steam drum via downpipes and riser pipes. The heating surface tubes from the superheater and economizer or from various other heating surfaces, if present, can be designed in a horizontal and / or vertical arrangement.

Beim Zwangsumlauf sind die Heizflächenrohre vom Überhitzer, Verdampfer und Economizer bzw. andere Heizflächen, falls vorhanden, in einem vertikalen Rauchgaskanal in horizontaler Einbaulage angeordnet. Die Verdampferheizflächen sind über Fallrohre, Umwälzpumpen und Steigrohre mit mindestens einer Dampftrommel verbunden. Die Umwälzpumpen, welche den Wasserumlauf im Verdampfer sicherstellen, sind mit einem Kosten- und Arbeitsaufwand bei der Erstellung der Anlage verbunden und bilden außerdem einen Störfaktor.In the case of forced circulation, the heating surface pipes from the superheater, evaporator and economizer or other heating surfaces, if present, are arranged in a vertical flue gas duct in a horizontal installation position. The evaporator heating surfaces are connected to at least one steam drum via downpipes, circulation pumps and risers. The circulation pumps, which ensure the water circulation in the evaporator, are associated with a cost and labor in the construction of the system and also form a disruptive factor.

Aufgabe der vorliegenden Erfindung ist die Schaffung eines Abhitze-­Dampferzeugers, welcher einer Gasturbine nachgestellt ist und den Vorteil hat, daß der Wasserumlauf ohne Verwendung einer Umwälzpumpe sichergestellt wird.The object of the present invention is to provide a waste heat steam generator which is simulated by a gas turbine and has the advantage that the water circulation is ensured without the use of a circulation pump.

Diese Aufgabe wird bei einem Abhitze-Dampferzeuger der eingangs erwähnten Art durch die Kombination folgender Merkmale gelöst:

  • a) daß die Fallrohre mit der Verdampferheizfläche über einen Unterhub
  • b) daß die Verdampferheizfläche horizontal angeordnet ist und
  • c) daß der Umlauf ein Naturumlauf ist.
In a waste heat steam generator of the type mentioned at the outset, this object is achieved by combining the following features:
  • a) that the downpipes with the evaporator heating surface via a lower stroke
  • b) that the evaporator heating surface is arranged horizontally and
  • c) that the circulation is a natural circulation.

Durch die Verwendung einer horizontal angeordneten Verdampferheizfläche wird eine kompakte Konstruktion des Dampferzeugers erzielt, wobei der Unterhub den richtigen Wasserumlauf sicherstellt, ohne daß es einer Umwälzpumpe bedarf, die abgesehen vom Kostenaufwand die Konstruktion verkompliziert und die Störanfälligkeit der Anlage erhöht.By using a horizontally arranged evaporator heating surface, a compact construction of the steam generator is achieved, the lower stroke ensuring the correct water circulation without the need for a circulation pump which, apart from the cost, complicates the construction and increases the susceptibility to malfunction of the system.

Zur Beschleunigung des Wasserumlaufes in der Anfahrphase ist nach einem weiteren Merkmal der Erfindung in Fallrohrsystem ein Injektor vorgesehen, welcher in der Anfahrphase in das Fallrohrsystem zusätzlich Wasser in der Strömungsrichtung einspeist.To accelerate the water circulation in the start-up phase, according to a further feature of the invention, an injector is provided in the downpipe system, which additionally feeds water in the flow direction in the downpipe system during the start-up phase.

Nach einem weiteren Merkmal der Erfindung kann die Beschleunigung des Wasserumlaufes in der Anfahrphase durch einen im Steigrohrsystem angeordneten Injektor erreicht werden, der Wasser in das Steigrohrsystem in der Strömungsrichtung einspeist.According to a further feature of the invention, the acceleration of the water circulation in the start-up phase can be achieved by an injector arranged in the riser pipe system, which feeds water into the riser pipe system in the flow direction.

Gemäß einer anderen Variante der Erfindung ist zur Beschleunigung des Wasserumlaufes in der Anfahrphase eine Einrichtung zur Einspeisung von Dampf, Dampfwassergemisch, Gasen, wie Stickstoff od. dgl. in das Steigrohrsystem vorgesehen.According to another variant of the invention, a device for feeding steam, steam water mixture, gases such as nitrogen or the like into the riser pipe system is provided to accelerate the water circulation in the start-up phase.

Schließlich kann zur Beschleunigung des Wasserumlaufes in der Anfahrphase zwischen dem Ein- und dem Austrittssammler der Verdampferheizflächen eine absperrbare Verbindungsleitung vorgesehen sein.Finally, a lockable connecting line can be provided between the inlet and the outlet header of the evaporator heating surfaces in order to accelerate the water circulation in the start-up phase.

Weitere Einzelheiten der Erfindung werden anhand der Zeichnung näher erläutert, in welcher ein Ausführungsbeispiel des erfindungsgemäßen Abhitze-Dampferzeugers schematisch dargestellt ist.Further details of the invention will be explained in more detail with reference to the drawing, in which an embodiment of the waste heat steam generator according to the invention is shown schematically.

Der gegenständliche Abhitze-Dampferzeuger ist in vertikaler Ausführung mit einer Verdampferheizfläche 1, einer Trommel 2, einem Fallrohrsystem 3, einem Steigrohrsystem 4, sowie einer Speiseleitung 5 mit einer Speisepumpe 6 versehen. Die Trommel 2 ist wasserseitig an das Fallrohrsystem 3 angeschlossen, welches über einen Unterhub 29 in einen Eintrittssammler 7 mündet, an den das Rohrsystem der Verdampferheizfläche 1 angeschlossen ist. Der Begriff "Unterhub" ist so zu verstehen, daß die Fallrohre 3 nach unten bis zu einer Ebene geführt sind, die tiefer gelegen ist als der Eintrittssammler 7 der Verdampferheizfläche 1, sodaß das Wasser von unten nach oben strömt bevor es in den Sammler eintritt. Der "Unterhub" kann somit als eine Art Wassersack verstanden werden. Die Verdampferheizfläche 1 ist ausgangsseitig an einen Austrittssammler 8 angeschlossen, in welchen das Steigrohrsystem 4 mündet, das mit dem Dampfraum der Trommel 2 über einen Überhub 9, oder direkt über ein Rohrsystem 10 mit dem Wasserraum 11 der Trommel 2 verbunden ist. Der Begriff "Überhub" ist so zu verstehen, daß das Dampfwassergemisch höher als der Spiegel des Wassers in der Trommel 2 in diese eingeführt wird.The waste heat steam generator in question is provided in a vertical version with an evaporator heating surface 1, a drum 2, a down pipe system 3, a riser pipe system 4 and a feed line 5 with a feed pump 6. The drum 2 is connected on the water side to the downpipe system 3, which opens into an inlet header 7 via a lower stroke 29, to which the pipe system of the evaporator heating surface 1 is connected. The term "lower stroke" is to be understood so that the downpipes 3 are led down to a level which is lower than the inlet manifold 7 of the evaporator heating surface 1, so that the water flows from the bottom up before it enters the collector. The "lower stroke" can thus be understood as a kind of water bag. The evaporator heating surface 1 is connected on the outlet side to an outlet header 8, into which the riser pipe system 4 opens, which is connected to the steam chamber of the drum 2 via an overtravel 9, or directly via a pipe system 10 to the water chamber 11 of the drum 2. The term "overstroke" is to be understood such that the steam / water mixture is introduced into the drum 2 higher than the level of the water in the drum.

Die Speisepumpe 6 fördert aus einem Speisewasserbehälter od.dgl. über die Speiseleitung 5 Wasser in den Wasserraum 11 zur Nachspeisung.The feed pump 6 promotes the like from a feed water tank. Via the feed line 5 water into the water space 11 for make-up.

Zur Beschleunigung des Wasserumlaufes in der Anfahrphase können als Anfahrhilfe diverse Systeme eingesetzt werden:Various systems can be used as a starting aid to accelerate the water circulation in the start-up phase:

Nach einer ersten Variante ist im Fallrohrsystem 3 ein Injektor 12 vorgesehen, welcher über eine mit einem Absperrorgan 14, z.B. einem Ventil, einem Hahn od.dgl. versehene Leitung 13 an die Speiseleitung 5 angeschlossen ist. Durch Einspeisung eines Teilstromes aus der Speiseleitung 5 in das Fallrohrsystem 3 in der Strömungsrichtung im Fallrohrsystem 3 wird eine dynamische Anregung des Wasserumlaufes in der Anfahrphase sichergestellt.According to a first variant, an injector 12 is provided in the downpipe system 3, which is connected to a shut-off device 14, e.g. a valve, a tap or the like. provided line 13 is connected to the feed line 5. By feeding a partial flow from the feed line 5 into the down pipe system 3 in the flow direction in the down pipe system 3, a dynamic excitation of the water circulation in the start-up phase is ensured.

Eine zweite Variante sieht eine Pumpe 16 in einer Nebenstromleitung 15 vor, welche das Fallrohrsystem 3 mit einem Injektor 17 im Steigrohrsystem 4 verbindet. Diese Pumpe 16 speist Kesselwasser, in das Steigrohrsystem 4 in deren Strömungsrichtung ein, wodurch der Wasserumlauf in der Anfahrphase dynamisch angeregt wird und nach Erreichen des stationären Umlaufzustandes durch Abschalten der Pumpe 16 die Anregung wieder ausgeschaltet werden kann.A second variant provides a pump 16 in a bypass line 15 which connects the downpipe system 3 with an injector 17 Riser pipe system 4 connects. This pump 16 feeds boiler water into the riser pipe system 4 in its direction of flow, as a result of which the water circulation is dynamically excited in the start-up phase and the excitation can be switched off again after the stationary circulation state has been reached by switching off the pump 16.

Im Rahmen der Erfindung besteht auch die Möglichkeit, die Leitung 15 an die Leitung 5 anzuschließen, in welchem Fall Speisewasser eingeführt wird, wobei die Pumpe 16 entfallen kann. Natürlich kann Wasser auch aus jedem anderen System genommen werden.Within the scope of the invention there is also the possibility of connecting the line 15 to the line 5, in which case feed water is introduced, it being possible to dispense with the pump 16. Of course, water can also be taken from any other system.

Gemäß einer dritten Variante kann in das Steigrohrsystem 4 aus einer Leitung 18, in welcher sich ein Absperrorgan 19, z.B. ein Ventil, ein Hahn od.dgl. befindet, Dampf, Stickstoff oder ein anderes Gas eingeblasen werden. Durch diese Maßnahme wird die Thermosyphonwirkung verstärkt und eine Beschleunigung des Umlaufvorganges in der Anfahrphase sichergestellt.According to a third variant, the riser pipe system 4 can be fed from a line 18 in which a shut-off device 19, e.g. a valve, a tap or the like. steam, nitrogen or another gas. This measure increases the thermosiphon effect and ensures an acceleration of the circulation process in the start-up phase.

Eine vierte Variante sieht eine durch ein Absperrorgan 21, z.B. ein Ventil, einen Hahn od.dgl. absperrbare Leitung 22 vor, welche den Eintrittssammler 7 mit dem Austrittssammler 8 der Verdampferheizfläche 1 verbindet. Der Einbau einer solchen absperrbaren Verbindungsleitung 22 zwischen mindestens einem Ein- und mindestens einem Austrittssammler 7 bzw. 8 der Verdampferheizflächen 1 stellt sicher, daß bei Bildung der ersten Dampfblasen diese durch direkte Ableitung in das Steigrohrsystem 4 den Wasserumlauf in der Anfahrphase anregen.A fourth variant sees one through a shut-off device 21, e.g. a valve, a tap or the like. lockable line 22, which connects the inlet header 7 to the outlet header 8 of the evaporator heating surface 1. The installation of such a lockable connecting line 22 between at least one inlet and at least one outlet header 7 or 8 of the evaporator heating surfaces 1 ensures that when the first vapor bubbles are formed, they stimulate the water circulation in the start-up phase by direct discharge into the riser pipe system 4.

Durch geeignete Dimensionierung des Rohrsystems der Verdampferheiz­flächen 1 und des Fall- und des Steigrohrsystems 3 bzw. 4 kann die Thermosyphonwirkung des Wasserumlaufes vorteilhaft beeinflußt werden.The thermosiphon effect of the water circulation can be advantageously influenced by suitable dimensioning of the pipe system of the evaporator heating surfaces 1 and of the downcomer and riser pipe systems 3 and 4.

Außerdem ist es vorteilhaft für die Verdampferheizfläche 1, wie in der Zeichnung angedeutet ist, Rippenrohre zu verwenden.It is also advantageous for the evaporator heating surface 1, as indicated in the drawing, to use finned tubes.

Durch den Unterhub 29 und vorzugsweise auch den Überhub 9 und bzw. oder die direkte Verbindung des Steigrohrsystems 4 mit dem Wasserraum 11 der Trommel 2 kann die Abhitzekesselausführung in der bekannten Ausführungsform beibehalten werden und auf die Verwendung von Umwälzpumpen im Kreislauf verzichtet werden.Through the lower stroke 29 and preferably also the overstroke 9 and / or the direct connection of the riser pipe system 4 to the water space 11 of the drum 2, the waste heat boiler design can be retained in the known embodiment and the use of circulation pumps in the circuit can be dispensed with.

Für die Verwendung des Abhitze-Dampferzeugers hinter Gasturbinen wird die Verdampferheizfläche 1, wie dargestellt, in horizontaler Anordnung in einem Abgaskanal 23 angeordnet, in welchen die Abgase einer oder mehrerer Gasturbinen in Richtung des Pfeiles A einströmen, wobei über und bzw. oder unter der Verdampferheizfläche 1 eine Überhitzerheiz­fläche 24 ebenfalls in horizontaler Anordnung vorgesehen sein kann, die eingangsseitig über einen Eintrittssammler 30 und eine Leitung 25 mit dem Dampfraum 26 der Trommel 2 in Verbindung steht und ausgangsseitig über einen Austrittssammler 31 und eine mit einem Absperrorgan 28 versehene Leitung 27 zur Turbine führt.For the use of the waste heat steam generator behind gas turbines, the evaporator heating surface 1, as shown, is arranged in a horizontal arrangement in an exhaust gas duct 23, into which the exhaust gases of one or more gas turbines flow in the direction of arrow A, above and / or below the evaporator heating surface 1, a superheater heating surface 24 can also be provided in a horizontal arrangement, which is connected on the inlet side to the steam chamber 26 of the drum 2 via an inlet collector 30 and a line 25 and on the outlet side leads to the turbine via an outlet collector 31 and a line 27 provided with a shut-off device 28 .

Claims (7)

1. Abhitze-Dampferzeuger in der Verwendung hinter einer Gasturbine, wobei mindestens eine Trommel vorgesehen ist, welche in ein Umlaufsystem, bestehend aus mindestens einem Fallrohr, mindestens einer Verdampferheizfläche und mindestens einem Steigrohr, eingebunden ist, gekennzeichnet durch die Kombination folgender Merkmale: a) daß die Fallrohre (3) mit der Verdampferheizfläche (1) über einen Unterhub (29) verbunden sind, b) daß die Verdampferheizfläche (1) horizontal angeordnet ist und c) daß der Umlauf ein Naturumlauf ist. 1. waste heat steam generator in use behind a gas turbine, at least one drum being provided, which is integrated in a circulation system consisting of at least one downpipe, at least one evaporator heating surface and at least one riser pipe, characterized by the combination of the following features: a) that the downpipes (3) are connected to the evaporator heating surface (1) via a lower stroke (29), b) that the evaporator heating surface (1) is arranged horizontally and c) that the circulation is a natural circulation. 2. Abhitze-Dampferzeuger nach Anspruch 1, dadurch gekennzeichnet, daß die Verdampferheizfläche (1) aus Rippenrohren besteht.2. waste heat steam generator according to claim 1, characterized in that the evaporator heating surface (1) consists of finned tubes. 3. Abhitze-Dampferzeuger nach Anspruch 1, dadurch gekennzeichnet, daß die Steigrohre (4) mit der Trommel (2) über einen Unterhub (9) mit dem Dampfraum (26) und bzw. oder der Trommel (2) direkt verbunden sind.3. waste heat steam generator according to claim 1, characterized in that the risers (4) with the drum (2) via a lower stroke (9) with the steam chamber (26) and or or the drum (2) are directly connected. 4. Abhitze-Dampferzeuger nach Anspruch 1, dadurch gekennzeichnet, daß die Steigrohre (4) mit der Trommel (2) mit dem Wasserraum (11) derselben direkt verbunden sind.4. waste heat steam generator according to claim 1, characterized in that the risers (4) with the drum (2) with the water chamber (11) are directly connected. 5. Abhitze-Dampferzeuger nach Anspruch 1, dadurch gekennzeichnet, daß zur Beschleunigung des Wasserumlaufes in der Anfahrphase im Steigrohrsystem (4) ein Injektor (17) angeordnet ist, der Wasser in das Steigrohrsystem (4) einspeist.5. waste heat steam generator according to claim 1, characterized in that to accelerate the water circulation in the start-up phase in the riser system (4) an injector (17) is arranged, which feeds water into the riser system (4). 6. Abhitze-Dampferzeuger nach Anspruch 1, dadurch gekennzeichnet, daß zur Beschleunigung des Wasserumlaufes in der Anfahrphase eine Einrichtung zur Einspeisung von Dampf, Dampfwassergemisch, Gasen, wie Stickstoff od. dgl. in das Steigrohrsystem (4) vorgesehen ist.6. waste heat steam generator according to claim 1, characterized in that a device for feeding steam, steam-water mixture, gases such as nitrogen or the like. In the riser pipe system (4) is provided to accelerate the water circulation in the start-up phase. 7. Abhitze-Dampferzeuger nach Anspruch 1, dadurch gekennzeichnet, daß zur Beschleunigung des Wasserumlaufes in der Anfahrphase zwischen dem Ein- und dem Austrittssammler (7 bzw. 8) der Verdampferheizfläche (1) eine absperrbare Verbindungsleitung (22) vorgesehen ist.7. waste heat steam generator according to claim 1, characterized in that a lockable connecting line (22) is provided for accelerating the water circulation in the start-up phase between the inlet and outlet manifold (7 or 8) of the evaporator heating surface (1).
EP89890214A 1988-08-29 1989-08-18 Waste heat boiler Expired - Lifetime EP0357590B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT2116/88A AT392683B (en) 1988-08-29 1988-08-29 HEAT STEAM GENERATOR
AT2116/88 1988-08-29

Publications (2)

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EP0357590A1 true EP0357590A1 (en) 1990-03-07
EP0357590B1 EP0357590B1 (en) 1993-07-21

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Country Link
EP (1) EP0357590B1 (en)
KR (1) KR0142330B1 (en)
CN (1) CN1018574B (en)
AT (1) AT392683B (en)
DE (1) DE58904955D1 (en)
DK (1) DK169109B1 (en)
ES (1) ES2043114T3 (en)
FI (1) FI93055C (en)

Cited By (13)

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WO1993023702A1 (en) * 1992-05-08 1993-11-25 Cockerill Mechanical Industries S.A. Heat recovery boiler with induced circulation
DE4441008A1 (en) * 1994-11-17 1996-05-23 Siemens Ag Plant for steam generation according to the natural circulation principle and method for initiating water circulation in such a plant
EP0752556A1 (en) * 1995-07-07 1997-01-08 Nem B.V. Natural circulation heat recovery steam generator
EP0764813A1 (en) * 1995-09-20 1997-03-26 Nem B.V. Waste heat boiler, particularly for use after a gas turbine
EP0936404A3 (en) * 1998-02-16 2002-04-10 BBP Energy GmbH Steam generator with several tube bundles
RU2467250C2 (en) * 2007-01-30 2012-11-20 Сименс Акциенгезелльшафт Operating method of combined-cycle turbine plant, and combined-cycle turbine plant designed for that purpose
WO2012134926A3 (en) * 2011-03-28 2013-08-22 Alstom Technology Ltd Method of controlling drum temperature transients
EP2944873A4 (en) * 2013-01-10 2016-01-20 Panasonic Ip Man Co Ltd RANKINE CYCLE DEVICE, AND COGENERATION SYSTEM
RU2575518C2 (en) * 2011-03-28 2016-02-20 Альстом Текнолоджи Лтд Control over variable temperatures of drum
US20160312997A1 (en) * 2015-04-22 2016-10-27 Alstom Technology Ltd. Method and system for gas initiated natural circulation vertical heat recovery steam generator
US9518731B2 (en) 2011-03-23 2016-12-13 General Electric Technology Gmbh Method and configuration to reduce fatigue in steam drums
US10125972B2 (en) 2014-03-21 2018-11-13 Amec Foster Wheeler Energia, S.L.U. Apparatus that provides and evaporation cycle of a natural circulation steam generator in connection with a vertical duct for upward gas flow
EP3835653A1 (en) * 2019-12-11 2021-06-16 Siemens Aktiengesellschaft Hot evaporator refilling

Families Citing this family (1)

* Cited by examiner, † Cited by third party
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EP1443268A1 (en) * 2003-01-31 2004-08-04 Siemens Aktiengesellschaft Steam generator

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US4188916A (en) * 1978-05-15 1980-02-19 Deltak Corporation Waste heat boiler for abstraction of heat energy from gaseous effluent containing corrosive chemical contaminants
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US2031423A (en) * 1929-03-15 1936-02-18 Foster Wheeler Corp Power plant
US2702026A (en) * 1952-07-31 1955-02-15 Svenska Maskinverken Ab Steam generating plant utilizing heat emanating from many different sources
GB810900A (en) * 1956-03-22 1959-03-25 Vorkauf Heinrich Improvements in steam generators with pressure-resistant, cylindrical casings
US4188916A (en) * 1978-05-15 1980-02-19 Deltak Corporation Waste heat boiler for abstraction of heat energy from gaseous effluent containing corrosive chemical contaminants
GB2070224A (en) * 1980-02-27 1981-09-03 Gen Electric Boiler tube silencer

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993023702A1 (en) * 1992-05-08 1993-11-25 Cockerill Mechanical Industries S.A. Heat recovery boiler with induced circulation
BE1005793A3 (en) * 1992-05-08 1994-02-01 Cockerill Mech Ind Sa INDUCED CIRCULATION HEAT RECOVERY BOILER.
US5575244A (en) * 1992-05-08 1996-11-19 Cockerill Mechanical Industries S.A. Heat recovery boiler with induced circulation
DE4441008A1 (en) * 1994-11-17 1996-05-23 Siemens Ag Plant for steam generation according to the natural circulation principle and method for initiating water circulation in such a plant
WO1996016298A1 (en) * 1994-11-17 1996-05-30 Siemens Aktiengesellschaft Steam generation plant using the natural circulation system and process for starting the water circulation in such a plant
EP0752556A1 (en) * 1995-07-07 1997-01-08 Nem B.V. Natural circulation heat recovery steam generator
EP0764813A1 (en) * 1995-09-20 1997-03-26 Nem B.V. Waste heat boiler, particularly for use after a gas turbine
DE19534802A1 (en) * 1995-09-20 1997-04-10 Nem Bv Heat recovery steam generators, particularly when used behind a gas turbine
EP0936404A3 (en) * 1998-02-16 2002-04-10 BBP Energy GmbH Steam generator with several tube bundles
RU2467250C2 (en) * 2007-01-30 2012-11-20 Сименс Акциенгезелльшафт Operating method of combined-cycle turbine plant, and combined-cycle turbine plant designed for that purpose
US9518731B2 (en) 2011-03-23 2016-12-13 General Electric Technology Gmbh Method and configuration to reduce fatigue in steam drums
JP2014512505A (en) * 2011-03-28 2014-05-22 アルストム テクノロジー リミテッド How to control drum temperature transients
RU2575518C2 (en) * 2011-03-28 2016-02-20 Альстом Текнолоджи Лтд Control over variable temperatures of drum
CN103518099A (en) * 2011-03-28 2014-01-15 阿尔斯通技术有限公司 Method of controlling drum temperature transients
CN103518099B (en) * 2011-03-28 2017-05-17 通用电器技术有限公司 Method of controlling drum temperature transients
WO2012134926A3 (en) * 2011-03-28 2013-08-22 Alstom Technology Ltd Method of controlling drum temperature transients
US9638066B2 (en) 2013-01-10 2017-05-02 Panasonic Intellectual Property Management Co., Ltd. Rankine cycle apparatus and combined heat and power system
EP2944873A4 (en) * 2013-01-10 2016-01-20 Panasonic Ip Man Co Ltd RANKINE CYCLE DEVICE, AND COGENERATION SYSTEM
US10125972B2 (en) 2014-03-21 2018-11-13 Amec Foster Wheeler Energia, S.L.U. Apparatus that provides and evaporation cycle of a natural circulation steam generator in connection with a vertical duct for upward gas flow
EP3091280A1 (en) * 2015-04-22 2016-11-09 General Electric Technology GmbH Method and system for gas initiated natural circulation vertical heat recovery steam generator
US9982881B2 (en) 2015-04-22 2018-05-29 General Electric Technology Gmbh Method and system for gas initiated natural circulation vertical heat recovery steam generator
US20160312997A1 (en) * 2015-04-22 2016-10-27 Alstom Technology Ltd. Method and system for gas initiated natural circulation vertical heat recovery steam generator
EP3835653A1 (en) * 2019-12-11 2021-06-16 Siemens Aktiengesellschaft Hot evaporator refilling
WO2021115663A1 (en) * 2019-12-11 2021-06-17 Siemens Aktiengesellschaft Hot evaporator refilling
US11885487B2 (en) 2019-12-11 2024-01-30 Nem Energy B.V. Hot evaporator refilling

Also Published As

Publication number Publication date
FI893754A7 (en) 1990-03-01
ATA211688A (en) 1990-10-15
KR0142330B1 (en) 1998-07-01
CN1041438A (en) 1990-04-18
AT392683B (en) 1991-05-27
EP0357590B1 (en) 1993-07-21
FI93055B (en) 1994-10-31
DK422389D0 (en) 1989-08-28
FI893754A0 (en) 1989-08-09
DK169109B1 (en) 1994-08-15
FI93055C (en) 1995-02-10
KR900003582A (en) 1990-03-26
CN1018574B (en) 1992-10-07
DE58904955D1 (en) 1993-08-26
ES2043114T3 (en) 1993-12-16
DK422389A (en) 1990-03-01

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