EP0359735B1 - Waste heat boiler - Google Patents

Waste heat boiler Download PDF

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Publication number
EP0359735B1
EP0359735B1 EP89890224A EP89890224A EP0359735B1 EP 0359735 B1 EP0359735 B1 EP 0359735B1 EP 89890224 A EP89890224 A EP 89890224A EP 89890224 A EP89890224 A EP 89890224A EP 0359735 B1 EP0359735 B1 EP 0359735B1
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EP
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Prior art keywords
pressure
steam
drum
low
water
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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.)
Expired - Lifetime
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EP89890224A
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German (de)
French (fr)
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EP0359735A1 (en
Inventor
Kurt Budin
Georg Dipl.Ing.Dr. Gasteiger
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.)
SGP-VA ENERGIE- UND UMWELTTECHNIK GESELLSCHAFT M.B
Original Assignee
Austrian Energy and Environment SGP Waagner Biro GmbH
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Publication of EP0359735A1 publication Critical patent/EP0359735A1/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
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K23/00—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids
    • F01K23/02—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled
    • F01K23/06—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle
    • F01K23/10—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle with exhaust fluid of one cycle heating the fluid in another cycle
    • F01K23/106—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle with exhaust fluid of one cycle heating the fluid in another cycle with water evaporated or preheated at different pressures in exhaust boiler
    • F01K23/108—Regulating means specially adapted therefor

Definitions

  • the invention relates to a waste heat steam generator according to the preamble of claim 1.
  • the supercooled condensate can be pumped into the feed water tank 7 by means of a condensate pump 20, possibly via preheaters, not shown, and via a degasser 38, as indicated by dash-dotted lines.
  • the degassed feed water is conveyed on the one hand via a low-pressure feed water pump 10 and preferably an economizer 1 into a low-pressure drum 8 and on the other hand via a high-pressure feed water pump 13 and a high-pressure economizer 3 into a high-pressure drum 9.
  • a low-pressure feed water pump 10 and preferably an economizer 1 into a low-pressure drum 8 and on the other hand via a high-pressure feed water pump 13 and a high-pressure economizer 3 into a high-pressure drum 9.
  • the water is introduced via the low-pressure circulation pump 14 into a low-pressure evaporator 3, from which the low-pressure steam is fed to the low-pressure drum 8 on the dash-dotted path.
  • the steam is fed to the low-pressure part 18 of a steam turbine 39 via the low-pressure superheater 5.
  • the water is fed via the high-pressure circulation pump 11 to the high-pressure evaporator 4, from which the steam arrives in the high-pressure drum 9 by the dash-dotted path. Steam is then introduced from this drum via the dash-dotted path into the high-pressure superheater 6, from which the high-pressure steam reaches the high-pressure part 17 of the steam turbine 39.
  • the degassed water is conveyed through various heating surface systems by means of feed pumps.
  • the steam drum also has the function of a feed water container, from which steam is fed to the low-pressure part via a low-pressure superheater, the steam turbine and water via a high-pressure feed pump and a high-pressure preheater from a high-pressure drum, from which steam via a high-pressure superheater to the high-pressure part of the steam turbine and water via a High pressure circulation pump and a high pressure evaporator is fed to the steam section of the high pressure drum.
  • This system is a two-pressure system with an integrated feed water tank. The low pressure as well as the high pressure system works in forced circulation via a steam drum.
  • the invention has for its object to make the system much easier and more economical.
  • an exhaust gas duct is designated, through which the exhaust gas coming from a gas turbine or several gas turbines flows in the direction of arrow A. and from which, after the heat has been given off, the exhaust gas flows into the open through an exhaust gas chimney 40 in the direction of arrow B.
  • a high-pressure superheater 6, a low-pressure superheater 5, a high-pressure evaporator 4, a low-pressure evaporator 3, a high-pressure economizer 2 and a low-pressure economizer 1 are arranged one above the other in the exhaust gas duct 21 in the direction of the flow of the exhaust gas.
  • the arrangement can also be done in a different way.
  • the low-pressure economizer 1 is on the input side via a collector (not shown) and a line 22 with a condensate pump 20 in connection, which is connected on the input side via a line 23 to a condenser 19 which is connected to a steam turbine 39 which consists of a high-pressure part 17 and a low-pressure part 18.
  • a conduit 25 for supplying water for the water consumed in the system can open into the condenser 19.
  • the low-pressure economizer 1 is connected on the output side via at least one collector (not shown) and a riser pipe 26 to a degasser 27 of any system of a feed water tank or a low-pressure drum 12, which at the same time also has the function of a feed water tank.
  • the water space of the feed water container or steam drum, preferably the low pressure drum 12 is connected on the one hand via a down pipe 28 to a high pressure feed water pump 13 and on the other hand via a down pipe 29 to a low pressure circulation pump 14.
  • the high-pressure feed water pump 13 is connected via a line 30 and an inlet manifold, not shown, to the high-pressure economizer 2, which is connected to the high-pressure evaporator 4 via at least one outlet manifold, not shown, a line 31 and at least one inlet manifold, also not shown.
  • the latter is connected to a water separation system 15 via at least one outlet manifold, not shown, and a line 32, from which, on the one hand, a line 33 leads to the high-pressure superheater 6 via at least one inlet manifold, not shown. and which, on the other hand, is connected to at least one collector, not shown, from which a line 41 leads to a high-pressure part 17 of the steam turbine 39.
  • the low-pressure superheater 3 is connected on the outlet side to the feed water tank or the steam drum, preferably the low-pressure drum 12, via at least one outlet header (not shown) and at least one riser pipe 42.
  • the water separation system 15 is also connected to a relaxation system 16 via a line 35 connected to a shut-off device 34 and connected to the feed water tank or the low-pressure drum 12 and / or another system via a line 37 provided with a shut-off device 36.
  • the waste heat steam generator according to the invention works in the following way:
  • the steam coming from the steam turbine 39 condenses in the condenser 19, from which the condensate pump 20 feeds the condensate via line 22 to the low-pressure economizer 1, from which the condensate passes through the degasser 27 into the low-pressure drum 12, which functions as a feed water tank, in which the Separation of steam and water takes place.
  • the feed water is fed to the low-pressure evaporator 3 by means of a circulating pump 14 and passed via the riser pipe 42 into the feed water container or the low-pressure drum.
  • the feed water from the feed water tank or the low-pressure drum 12 is fed to the high-pressure economizer 2 via the downpipe 28, the high-pressure feed water pump 13, the line 30, and the inlet header (s).
  • steam reaches the high-pressure evaporator 4 via the line 31 and at least one inlet manifold (not shown), from which the steam passes through at least one outlet manifold (not shown) and the water separation system 15, the line 33 and the high-pressure superheater 6 into the high-pressure part 17 of the steam turbine 39 . arrives.
  • the feedwater tank 7 and the low-pressure drum 8 shown in dash-dotted lines are combined to form a common container 12, the other lines shown in dash-dotted lines making the low-pressure feed water pump 10, the high-pressure circulation pump 11 and the high-pressure drum 9 unnecessary compared to the known systems.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)

Description

Die Erfindung betrifft einen Abhitze-Dampferzeuger nach dem Oberbegriff des Patentanspruches 1.The invention relates to a waste heat steam generator according to the preamble of claim 1.

Zum besseren Verständnis des Standes der Technik wird auf die beiliegende Zeichnung bezug genommen.For a better understanding of the prior art, reference is made to the accompanying drawing.

Bei den bekannten Systemen kann das unterkühlte Kondensat mit Hilfe einer Kondensatpumpe 20 eventuell über nicht dargestellte Vorwärmer und über einen Entgaser 38 in den Speisewasserbehälter 7 gepumpt werden, wie strichpunktiert angedeutet ist. Das entgaste Speisewasser wird einerseits über eine Niederdruckspeisewasserpumpe 10 und vorzugsweise einen Economizer 1 in eine Niederdrucktrommel 8 und anderseits über eine Hochdruckspeisewasserpumpe 13 und einen Hochdruckeconomizer 3 in eine Hochdrucktrommel 9 gefördert. Es können auch mehrere Pumpen in beiden Systemen vorhanden sein. Aus der Niederdrucktrommel 8 wird das Wasser über die Niederdruckumwälzpumpe 14 in eine Niederdruckverdampfer 3 eingeleitet, aus dem der Niederdruckdampf der Niederdrucktrommel 8 auf dem strichpunktierten Weg zugeführt wird. Der Dampf wird über den Niederdrucküberhitzer 5 dem Niederdruckteil 18 einer Dampfturbine 39 zugeführt.In the known systems, the supercooled condensate can be pumped into the feed water tank 7 by means of a condensate pump 20, possibly via preheaters, not shown, and via a degasser 38, as indicated by dash-dotted lines. The degassed feed water is conveyed on the one hand via a low-pressure feed water pump 10 and preferably an economizer 1 into a low-pressure drum 8 and on the other hand via a high-pressure feed water pump 13 and a high-pressure economizer 3 into a high-pressure drum 9. There can also be several pumps in both systems. From the low-pressure drum 8, the water is introduced via the low-pressure circulation pump 14 into a low-pressure evaporator 3, from which the low-pressure steam is fed to the low-pressure drum 8 on the dash-dotted path. The steam is fed to the low-pressure part 18 of a steam turbine 39 via the low-pressure superheater 5.

Aus der Hochdrucktrommel 9 wird das Wasser über die Hochdruckumwälzpumpe 11 dem Hochdruckverdampfer 4 zugeführt, aus welchem der Dampf auf dem strichpunktierten Weg in die Hochdrucktrommel 9 gelangt. Aus dieser Trommel wird sodann Dampf über den strichpunktierten Weg in den Hochdrucküberhitzer 6 eingeführt, aus dem der Hochdruckdampf in den Hochdruckteil 17 der Dampfturbine 39 gelangt.From the high-pressure drum 9, the water is fed via the high-pressure circulation pump 11 to the high-pressure evaporator 4, from which the steam arrives in the high-pressure drum 9 by the dash-dotted path. Steam is then introduced from this drum via the dash-dotted path into the high-pressure superheater 6, from which the high-pressure steam reaches the high-pressure part 17 of the steam turbine 39.

In der Zwangsdurchlaufanordnung wird das entgaste Wasser mittels Speisepumpen durch verschiedene Heizflächensysteme gefördert.In the forced flow arrangement, the degassed water is conveyed through various heating surface systems by means of feed pumps.

Die Literaturstelle "Fossil beheizte Dampfkraftwerke", Verlag TÜV Rheinland, 1986 offenbart einen Abhitze-Dampferzeuger hinter Gasturbine unter Verwendung eines Kondensators und einer das Kondensat aufnehmenden Dampftrommel, welche in ein Umlaufsystem mit mindestens einem Fallrohr, mindestens einer Heizfläche und mindestens einem Steigrohr eingebunden ist, und einen Wasserraum, sowie einen Dampfraum besitzt. In diesem Dampferzeuger hat die Dampftrommel auch die Funktion eines Speisewasserbehälters, aus welchem Dampf über einen Niederdrucküberhitzer dem Niederdruckteil, der Dampfturbine und Wasser über eine Hochdruckspeisepumpe und einen Hochdruckvorwärmer einer Hochdrucktrommel zugeführt wird, aus welcher Dampf über einen Hochdrucküberhitzer dem Hochdruckteil der Dampfturbine und Wasser über eine Hochdruckumwälzpumpe und einen Hochdruckverdampfer dem Dampfteil der Hochdrucktrommel zugeführt wird. Diese Anlage ist ein Zweidrucksystem mit einem integrierten Speisewasserbehälter. Das Niederdruck- wie auch das Hochdrucksystem arbeitet im Zwangsumlauf über eine Dampftrommel.The literature reference "Fossil Heated Steam Power Plants", published by TÜV Rheinland, 1986, discloses a waste heat steam generator behind a gas turbine using a condenser and a steam drum holding the condensate, which is integrated in a circulation system with at least one downpipe, at least one heating surface and at least one riser pipe. and has a water room and a steam room. In this steam generator, the steam drum also has the function of a feed water container, from which steam is fed to the low-pressure part via a low-pressure superheater, the steam turbine and water via a high-pressure feed pump and a high-pressure preheater from a high-pressure drum, from which steam via a high-pressure superheater to the high-pressure part of the steam turbine and water via a High pressure circulation pump and a high pressure evaporator is fed to the steam section of the high pressure drum. This system is a two-pressure system with an integrated feed water tank. The low pressure as well as the high pressure system works in forced circulation via a steam drum.

Der Erfindung liegt die Aufgabe zugrunde, die Anlage wesentlich einfacher und wirtschaftlicher zu gestalten.The invention has for its object to make the system much easier and more economical.

Diese Aufgabe wird bei einem Dampferzeuger der eingangs erwähnten Art durch die Maßnahme nach dem kennzeichnenden Teil des Patentanspruches gelöst. Dadurch entfällt die im zuletzt beschriebenen System erforderliche Hochdrucktrommel, ohne die Funktion der Anlage in irgendeiner Weise zu beeinträchtigen. Dieses System ist kein Hochdruckszwangsumlaufsystem, sondern im Prinzip ein reines Zwangsdurchlaufsystem.This object is achieved in a steam generator of the type mentioned by the measure according to the characterizing part of the patent claim. This eliminates the high-pressure drum required in the system described last, without impairing the function of the system in any way. This system is not a high-pressure forced circulation system, but in principle a purely forced circulation system.

Die Erfindung wird anhand der Zeichnung näher erläutert, in welcher ein Ausführungsbeispiel des erfindungsgemäßen Abhitze-Dampferzeugers schematisch dargestellt ist.The invention is 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.

Mit 21 ist ein Abgaskanal bezeichnet, durch welchen das von einer Gasturbine oder mehreren Gasturbinen kommende Abgas in der Richtung des Pfeiles A strömt und aus welchem das Abgas nach Abgabe der Wärme durch einen Abgaskamin 40 in Richtung des Pfeiles B ins Freie strömt. Im Abgaskanal 21 sind in der Richtung der Strömung des Abgases übereinander ein Hochdrucküberhitzer 6, ein Niederdrucküberhitzer 5, ein Hochdruckverdampfer 4, ein Niederdruckverdampfer 3, ein Hochdruckeconomizer 2 und ein Niederdruckeconomizer 1 angeordnet.With 21 an exhaust gas duct is designated, through which the exhaust gas coming from a gas turbine or several gas turbines flows in the direction of arrow A. and from which, after the heat has been given off, the exhaust gas flows into the open through an exhaust gas chimney 40 in the direction of arrow B. A high-pressure superheater 6, a low-pressure superheater 5, a high-pressure evaporator 4, a low-pressure evaporator 3, a high-pressure economizer 2 and a low-pressure economizer 1 are arranged one above the other in the exhaust gas duct 21 in the direction of the flow of the exhaust gas.

Die Anordnung kann auch in anderer Weise erfolgen.The arrangement can also be done in a different way.

Der Niederdruckeconomizer 1 steht eingangsseitig über einen nicht dargestellten Sammler und eine Leitung 22 mit einer Kondensatpumpe 20 in Verbindung, die eingangsseitig über eine Leitung 23 mit einem Kondensator 19 verbunden ist, der an eine Dampfturbine 39 angeschlossen ist, welche aus einem Hochdruckteil 17 und einem Niederdruckteil 18 besteht. In den Kondensator 19 kann eine Leitung 25 zur Zufuhr von Wasser für das in der Anlage verbrauchte Wasser münden. Der Niederdruckeconomizer 1 ist ausgangsseitig über mindestens einen nicht dargestellten Sammler und ein Steigrohr 26 mit einem Entgaser 27 eines beliebigen Systems eines Speisewasserbehälters bzw. einer Niederdrucktrommel 12 verbunden, die gleichzeitig auch die Funktion eines Speisewasserbehälters hat. Der Wasserraum des Speisewasserbehälters bzw. Dampftrommel, vorzugsweise der Niederdrucktrommel 12 ist einerseits über ein Fallrohr 28 mit einer Hochdruckspeisewasserpumpe 13 und anderseits über ein Fallrohr 29 mit einer Niederdruckumwälzpumpe 14 verbunden.The low-pressure economizer 1 is on the input side via a collector (not shown) and a line 22 with a condensate pump 20 in connection, which is connected on the input side via a line 23 to a condenser 19 which is connected to a steam turbine 39 which consists of a high-pressure part 17 and a low-pressure part 18. A conduit 25 for supplying water for the water consumed in the system can open into the condenser 19. The low-pressure economizer 1 is connected on the output side via at least one collector (not shown) and a riser pipe 26 to a degasser 27 of any system of a feed water tank or a low-pressure drum 12, which at the same time also has the function of a feed water tank. The water space of the feed water container or steam drum, preferably the low pressure drum 12, is connected on the one hand via a down pipe 28 to a high pressure feed water pump 13 and on the other hand via a down pipe 29 to a low pressure circulation pump 14.

Die Hochdruckspeisewasserpumpe 13 ist über eine Leitung 30 und einen nicht dargestellten Eintrittssammler an den Hochdruckeconomizer 2 angeschlossen, welcher über mindestens einen nicht dargestellten Austrittssammler, eine Leitung 31 und mindestens einen ebenfalls nicht dargestellten Eintrittssammler mit dem Hochdruckverdampfer 4 verbunden ist. Letzterer ist über mindestens einen nicht dargestellten Austrittssammler und eine Leitung 32 mit einem Wasserabscheidesystem 15 verbunden, von dem einerseits eine Leitung 33 über mindestens einen nicht dargestellten Eintrittssammler zum Hochdrucküberhitzer 6 führt. und der anderseits an mindestens einen nicht dargestellten Sammler angeschlossen ist, von welchem eine Leitung 41 zu einem Hochdruckteil 17 der Dampfturbine 39 führt.The high-pressure feed water pump 13 is connected via a line 30 and an inlet manifold, not shown, to the high-pressure economizer 2, which is connected to the high-pressure evaporator 4 via at least one outlet manifold, not shown, a line 31 and at least one inlet manifold, also not shown. The latter is connected to a water separation system 15 via at least one outlet manifold, not shown, and a line 32, from which, on the one hand, a line 33 leads to the high-pressure superheater 6 via at least one inlet manifold, not shown. and which, on the other hand, is connected to at least one collector, not shown, from which a line 41 leads to a high-pressure part 17 of the steam turbine 39.

Der Niederdrucküberhitzer 3 ist ausgangsseitig über mindestens einen nicht dargestellten Austrittssammler und mindestens ein Steigrohr 42 an den Speisewasserbehälter bzw. die Dampftrommel, vorzugsweise Niederdrucktrommel 12 angeschlossen.The low-pressure superheater 3 is connected on the outlet side to the feed water tank or the steam drum, preferably the low-pressure drum 12, via at least one outlet header (not shown) and at least one riser pipe 42.

Das Wasserabscheidesystem 15 ist außerdem über eine mit einem Absperrorgan 34 verbundene Leitung 35 mit einem Entspannungssystem 16 und über eine mit einem Absperrorgan 36 versehene Leitung 37 mit dem Speisewasserbehälter bzw. der Niederdrucktrommel 12 und bzw. oder einem anderen System verbunden.The water separation system 15 is also connected to a relaxation system 16 via a line 35 connected to a shut-off device 34 and connected to the feed water tank or the low-pressure drum 12 and / or another system via a line 37 provided with a shut-off device 36.

Der erfindungsgemäße Abhitze-Dampferzeuger funktioniert in folgender Weise:The waste heat steam generator according to the invention works in the following way:

Der aus der Dampfturbine 39 kommende Dampf kondensiert im Kondensator 19, aus welchem die Kondensatpumpe 20 das Kondensat über die Leitung 22 dem Niederdruckeconomizer 1 zuführt, aus welchem das Kondensat über den Entgaser 27 in die die Funktion eines Speisewasserbehälters ausübende Niederdrucktrommel 12 gelangt, in welcher die Trennung von Dampf und Wasser erfolgt. Über das Fallrohr 29 wird das Speisewasser mittels Umwälzpumpe 14 dem Niederdruckverdampfer 3 zugeführt und über das Steigrohr 42 in den Speisewasserbehälter bzw. die Niederdrucktrommel geleitet. Außerdem wird das Speisewasser aus dem Speisewasserbehälter bzw. der Niederdrucktrommel 12 über das Fallrohr 28, die Hochdruckspeisewasserpumpe 13, die Leitung 30,den bzw. die Eintrittssammler dem Hochdruckeconomizer 2 zugeführt. Aus dem Hochdruckeconomizer 2 gelangt Dampf über die Leitung 31 und mindestens einen nicht dargestellten Eintrittssammler in den Hochdruckverdampfer 4, aus welchen der Dampf über mindestens einen nicht dargestellten Austrittssammler und das Wasserabscheidesystem 15, die Leitung 33 und den Hochdrucküberhitzer 6 in den Hochdruckteil 17 der Dampfturbine 39. gelangt.The steam coming from the steam turbine 39 condenses in the condenser 19, from which the condensate pump 20 feeds the condensate via line 22 to the low-pressure economizer 1, from which the condensate passes through the degasser 27 into the low-pressure drum 12, which functions as a feed water tank, in which the Separation of steam and water takes place. Via the downpipe 29, the feed water is fed to the low-pressure evaporator 3 by means of a circulating pump 14 and passed via the riser pipe 42 into the feed water container or the low-pressure drum. In addition, the feed water from the feed water tank or the low-pressure drum 12 is fed to the high-pressure economizer 2 via the downpipe 28, the high-pressure feed water pump 13, the line 30, and the inlet header (s). From the high-pressure economizer 2, steam reaches the high-pressure evaporator 4 via the line 31 and at least one inlet manifold (not shown), from which the steam passes through at least one outlet manifold (not shown) and the water separation system 15, the line 33 and the high-pressure superheater 6 into the high-pressure part 17 of the steam turbine 39 . arrives.

Durch die erfindungsgemäße Maßnahme werden die strichpunktiert dargestellten Speisewasserbehälter 7 und Niederdrucktrommel 8 zu einem gemeinsamen Behälter 12 vereinigt, wobei die übrigen strichpunktiert dargestellten Leitungen die Niederdruckspeisewasserpumpe 10, die Hochdruckumwälzpumpe 11 und die Hochdrucktrommel 9 gegenüber den bekannten Anlagen erübrigt werden.By means of the measure according to the invention, the feedwater tank 7 and the low-pressure drum 8 shown in dash-dotted lines are combined to form a common container 12, the other lines shown in dash-dotted lines making the low-pressure feed water pump 10, the high-pressure circulation pump 11 and the high-pressure drum 9 unnecessary compared to the known systems.

Claims (1)

  1. Heat-recovery steam generator using a condenser (19) and a steam drum which receives the condensate and which is incorporated into a circulation system including at least one downcomer (29), at least one heating surface (3) and at least one riser (42), and which is provided with a water space and a steam space in order to perform the separation of the water-steam mixture into water and steam, with the steam drum featuring an integrated thermal deaeration, having the function of a feedwater tank and being a low-pressure drum (12) characterized by the fact that the feedwater is conveyed from the steam drum by means of a high-pressure feedwater pump (13) to a high-pressure economizer (2) which is connected at its outlet to a high-pressure evaporator (4) from which steam is conveyed, via a water separator (15) and a high-pressure superheater (6), to a high-pressure section (17) of a steam turbine (39).
EP89890224A 1988-09-14 1989-09-01 Waste heat boiler Expired - Lifetime EP0359735B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT2254/88 1988-09-14
AT225488A AT394100B (en) 1988-09-14 1988-09-14 HEAT STEAM GENERATOR

Publications (2)

Publication Number Publication Date
EP0359735A1 EP0359735A1 (en) 1990-03-21
EP0359735B1 true EP0359735B1 (en) 1993-07-21

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EP89890224A Expired - Lifetime EP0359735B1 (en) 1988-09-14 1989-09-01 Waste heat boiler

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EP (1) EP0359735B1 (en)
AT (1) AT394100B (en)
DE (1) DE58904959D1 (en)
DK (1) DK168459B1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0425717A1 (en) * 1989-10-30 1991-05-08 Siemens Aktiengesellschaft Once-through steam generator
EP0781960A2 (en) * 1995-11-28 1997-07-02 Asea Brown Boveri Ag Purification of a water-steam cycle in an once-through steam generator
AU743481B2 (en) * 1998-04-03 2002-01-24 Alstom Power Inc. Heat recovery steam generator
US7074259B2 (en) 2001-09-14 2006-07-11 Alstom Technology Ltd Method and apparatus for thermal degassing

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4409338C2 (en) * 1993-12-24 1999-09-23 Oskar Rothermel Steam generator
DE19534802A1 (en) * 1995-09-20 1997-04-10 Nem Bv Heat recovery steam generators, particularly when used behind a gas turbine
DE19544226B4 (en) * 1995-11-28 2007-03-29 Alstom Combined plant with multi-pressure boiler
DE59803290D1 (en) * 1997-06-30 2002-04-11 Siemens Ag heat recovery steam generator
DE59709156D1 (en) * 1997-07-28 2003-02-20 Alstom Switzerland Ltd Combined gas-steam power plant with a once-through steam generator
EP0919767B1 (en) * 1997-12-01 2002-06-05 Alstom Combined steam gas power plant with a once-through steam generator
EP0981014B1 (en) * 1998-08-18 2003-04-16 ALSTOM (Switzerland) Ltd Power plant and process for starting and for purification of its water-steam cycle
DE102009010020B4 (en) * 2009-02-21 2016-07-07 Flagsol Gmbh Feedwater degasser of a solar thermal power plant
DE102010028720A1 (en) * 2010-05-07 2011-11-10 Siemens Aktiengesellschaft Method for operating a steam generator
DE102012217514A1 (en) * 2012-09-27 2014-03-27 Siemens Aktiengesellschaft Gas and steam turbine plant with feedwater partial flow degasser
CN105473502A (en) * 2013-07-12 2016-04-06 因温斯特技术公司 Hydrogen cyanide manufacturing process with second waste heat boiler
EP3048366A1 (en) * 2015-01-23 2016-07-27 Siemens Aktiengesellschaft Waste heat steam generator
CN107166351A (en) * 2017-06-27 2017-09-15 四川东华锅炉工程技术有限公司 A kind of heat recovery boiler device with vertical well gas flue structure
FR3106198B1 (en) * 2020-01-10 2022-01-14 Commissariat Energie Atomique Partitioned heat exchanger, thermal energy recovery unit and associated sterilization device
US11859811B2 (en) 2021-03-09 2024-01-02 The Cleaver-Brooks Company, Inc. Auxiliary boiler systems and methods of operating and implementing same

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3177659A (en) * 1962-08-02 1965-04-13 Westinghouse Electric Corp Heat exchange apparatus
CH528671A (en) * 1970-09-08 1972-09-30 Sulzer Ag Combined steam power plant
US3803846A (en) * 1971-06-14 1974-04-16 S Letvin Waste heat recovery process
US3769795A (en) * 1972-03-22 1973-11-06 Turbo Power And Marines Syst I Multipressure steam system for unfired combined cycle powerplant
DE3002615A1 (en) * 1979-12-05 1981-06-11 BBC AG Brown, Boveri & Cie., Baden, Aargau Combined gas and steam turbine power plant - uses gas turbine waste heat to generate steam, preheats air-to-gas turbine compressor
GB2099558A (en) * 1981-05-26 1982-12-08 Gen Electric Heat recovery steam generator
CH653097A5 (en) * 1981-06-10 1985-12-13 Sulzer Ag COMBINED GAS TURBINE STEAM POWER PLANT.

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
"Fossil beheizte Dampfkraftwerke", Verlag TÜV Rheinland, 1986, Seite 250, Bild 5.64. *
"Grosse Dampfkraftwerke", Springer-Verlag, 1966, Seite 353. *
"Konzept und Aufbau von Dampfkraftwerken", Verlag TÜV Rheinland, 1985, Seite 350. *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0425717A1 (en) * 1989-10-30 1991-05-08 Siemens Aktiengesellschaft Once-through steam generator
EP0781960A2 (en) * 1995-11-28 1997-07-02 Asea Brown Boveri Ag Purification of a water-steam cycle in an once-through steam generator
US5840130A (en) * 1995-11-28 1998-11-24 Asea Brown Boveri Ag Cleaning of the water/steam circuit in a once-through forced-flow steam generator
AU743481B2 (en) * 1998-04-03 2002-01-24 Alstom Power Inc. Heat recovery steam generator
US7074259B2 (en) 2001-09-14 2006-07-11 Alstom Technology Ltd Method and apparatus for thermal degassing

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AT394100B (en) 1992-01-27
ATA225488A (en) 1991-07-15
DK450789D0 (en) 1989-09-13
DE58904959D1 (en) 1993-08-26
DK450789A (en) 1990-03-15
DK168459B1 (en) 1994-03-28
EP0359735A1 (en) 1990-03-21

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