EP0599736B1 - Abhitzekessel für Heissgas insbesondere aus einer Gasturbine - Google Patents

Abhitzekessel für Heissgas insbesondere aus einer Gasturbine Download PDF

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Publication number
EP0599736B1
EP0599736B1 EP93402859A EP93402859A EP0599736B1 EP 0599736 B1 EP0599736 B1 EP 0599736B1 EP 93402859 A EP93402859 A EP 93402859A EP 93402859 A EP93402859 A EP 93402859A EP 0599736 B1 EP0599736 B1 EP 0599736B1
Authority
EP
European Patent Office
Prior art keywords
duct
inlet
enclosure
boiler
heat exchanger
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP93402859A
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English (en)
French (fr)
Other versions
EP0599736A1 (de
Inventor
Jean-Francois Saujet
Djamel Daoud
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.)
Stein Industrie SA
Original Assignee
Stein Industrie SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Stein Industrie SA filed Critical Stein Industrie SA
Publication of EP0599736A1 publication Critical patent/EP0599736A1/de
Application granted granted Critical
Publication of EP0599736B1 publication Critical patent/EP0599736B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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

Definitions

  • the present invention relates to a recovery boiler at the outlet of a gas turbine.
  • a recovery boiler at the outlet of a gas turbine comprising a gas inlet duct of generally horizontal direction, a gas deflection duct connected to the preceding duct and leading to a substantially vertical direction enclosure and containing a set of substantially horizontal and superimposed heat exchange stages and a smoke evacuation duct at the upper end of the enclosure, a heat exchanger being arranged upstream of said enclosure.
  • the temperatures of the gases leaving a gas turbine are very high and can currently reach 650 ° C.
  • the inlet and deflection pipes must therefore be designed to withstand these temperatures. They cannot be made entirely of stainless steel, given the problems of expansion which would result therefrom given their large size. They therefore generally consist of a so-called warm sheet made of a steel sheet, a layer of thermal insulator and stainless steel plates arranged in the form of scales. Thus the steel sheet, in particular E24 steel, is maintained at a temperature of around 320 ° C. In addition to its relatively complex constitution, such a sheet poses problems of relative fragility.
  • the present invention proposes to solve these problems and to do this, at least one heat exchanger is disposed near the outlet of said inlet conduit so as to reduce the temperature of the gases at the outlet of this exchanger, said heat exchanger being inclined, its outlet surface facing the entrance to the enclosure.
  • the conduit where the temperature is very high, for example around 650 ° C., is limited to the inlet conduit of smaller size.
  • the diversion pipe reigns a lower temperature, for example 560 ° C, allowing to release in this conduit insulation constraints and in particular no longer requiring a sheet called warm.
  • the deflection pipe can be made of steel, preferably steel with 2.25% chromium.
  • the inlet duct can be made of stainless steel.
  • outlet surface of the inlet duct and the inlet surface of the deflection duct are inclined, turned towards the inlet of the enclosure and connected by an expansion joint.
  • the exchanger is arranged just upstream of the expansion joint.
  • the exchanger constitutes at least partially a lower heat exchange stage of the boiler.
  • Figure 1 is a vertical sectional view of a boiler according to the invention.
  • Figure 2 shows schematically the water-steam circuit of the heat exchange stages in the case of a recovery boiler with three pressures and overheating and of a combined gas turbine and steam turbine cycle.
  • the recovery boiler shown is arranged at the outlet of a gas turbine and conventionally comprises an inlet duct 1 for gases of generally horizontal direction, a deflection duct 2 for gases connected to the preceding duct 1 and leading to a enclosure 3 of substantially vertical direction and containing a set of substantially horizontal and superimposed heat exchange stages and a smoke evacuation duct 4 at the upper end of enclosure 3.
  • At least one heat exchanger 5 is disposed near the outlet of said inlet duct 1. It is inclined, its outlet surface 6 being turned towards the inlet 7 of the pregnant 3.
  • the deflection pipe 2 is made of steel, preferably steel with 2.25% chromium and the inlet pipe 1 is made of stainless steel.
  • the outlet surface of the inlet duct 1 and the inlet surface of the deflection duct 2 are inclined, turned towards the inlet of the enclosure 3 and connected by an expansion joint 8 and the exchanger 5 is arranged just upstream of the expansion joint 8.
  • the exchanger 5 constitutes at least partially a lower heat exchange stage of the boiler.
  • the exchanger 5 is double and consists of the HT 28 superheater and the HT 37 superheater.
  • this HT 28 superheater and this HT 37 superheater are arranged with the other heat exchange stages in the enclosure 3 of the boiler.
  • the invention consists in transferring at least one of these elements at the outlet of the inlet duct 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Feeding And Controlling Fuel (AREA)

Claims (7)

  1. Abhitzekessel am Ausgang einer Gasturbine, der eine Eingangsleitung (1) für die Gase mit allgemein waagrechter Richtung, eine Umlenkleitung (2) der Gase, die an die vorhergehende Leitung (1) angeschlossen ist und in einem Raum (3) von im wesentlichen senkrechter Ausdehnung mündet, der eine Einheit von im wesentlichen waagrechten und übereinanderliegenden Wärmetauscherstufen enthält, und eine Auslaßleitung (4) für den Rauch am oberen Ende des Raums (3) aufweist, wobei ein Wärmetauscher (5) vor dem Raum (3) angeordnet ist, dadurch gekennzeichnet, daß der Wärmetauscher (5) in der Nähe des Ausgangs der Eingangsleitung (1) angeordnet ist, wobei der Wärmetauscher (5) geneigt ist und seine Ausgangsfläche (6) zum Eingang (7) des Raums (3) hin zeigt.
  2. Abhitzekessel nach Anspruch 1, dadurch gekennzeichnet, daß die Umlenkleitung (2) aus Stahl ist.
  3. Abhitzekessel nach Anspruch 2, dadurch gekennzeichnet, daß die Umlenkleitung aus Stahl mit 2,25% Chromanteil ist.
  4. Abhitzekessel nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Eingangsleitung (1) aus rostfreiem Stahl ist.
  5. Abhitzekessel nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Ausgangsfläche der Eingangsleitung (1) und die Eingangsfläche der Umlenkleitung (2) geneigt, und zwar zum Eingang des Raums (3) hin, und durch eine Dehnungsdichtung (8) miteinander verbunden sind.
  6. Abhitzekessel nach Anspruch 5, dadurch gekennzeichnet, daß der Wärmetauscher (5) direkt vor der Dehnungsdichtung (8) angeordnet ist.
  7. Abhitzekessel nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß der Wärmetauscher (5) zumindest teilweise eine untere Wärmetauscherstufe des Abhitzekessels bildet.
EP93402859A 1992-11-27 1993-11-25 Abhitzekessel für Heissgas insbesondere aus einer Gasturbine Expired - Lifetime EP0599736B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9214317 1992-11-27
FR9214317A FR2698681B1 (fr) 1992-11-27 1992-11-27 Chaudière de récupération en sortie de turbine à gaz.

Publications (2)

Publication Number Publication Date
EP0599736A1 EP0599736A1 (de) 1994-06-01
EP0599736B1 true EP0599736B1 (de) 1997-05-21

Family

ID=9435993

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93402859A Expired - Lifetime EP0599736B1 (de) 1992-11-27 1993-11-25 Abhitzekessel für Heissgas insbesondere aus einer Gasturbine

Country Status (5)

Country Link
US (1) US5370086A (de)
EP (1) EP0599736B1 (de)
DE (1) DE69310875T2 (de)
ES (1) ES2101270T3 (de)
FR (1) FR2698681B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103672841A (zh) * 2013-12-18 2014-03-26 乐山市乐锅锅炉有限公司 立式水管燃气（黄磷）蒸汽锅炉

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT410473B (de) * 1995-10-16 2003-05-26 Ae Energietechnik Gmbh Tragkonstruktion für metallummantelte aufgehängte einrichtungen
US5762031A (en) * 1997-04-28 1998-06-09 Gurevich; Arkadiy M. Vertical drum-type boiler with enhanced circulation
EP1684010A1 (de) * 2004-12-30 2006-07-26 Oschatz Gmbh Ofenaggregat und Schliessring

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1666276A (en) * 1927-04-16 1928-04-17 Nat Tube Co Boiler
FR1065284A (fr) * 1951-06-18 1954-05-21 Procédé et appareillage pour l'amélioration de l'utilisation des chaleurs perdues
FR1065234A (fr) * 1952-03-04 1954-05-21 Alsthom Cgee Commande manuelle combinée avec l'utilisation d'une source additionnelle d'énergieasservie
US3356159A (en) * 1966-02-16 1967-12-05 Bros Inc Hihg pressure vapor generator
GB1573439A (en) * 1976-12-15 1980-08-20 Foster Wheeler Power Prod Waste heat steam generation
JPS6017967B2 (ja) * 1978-01-18 1985-05-08 株式会社日立製作所 排熱回収ボイラ装置
JPS6155501A (ja) * 1984-08-24 1986-03-20 株式会社日立製作所 排熱回収ボイラ
DE4038813C2 (de) * 1990-12-05 1998-01-29 Siemens Ag Kesselanordnung

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103672841A (zh) * 2013-12-18 2014-03-26 乐山市乐锅锅炉有限公司 立式水管燃气（黄磷）蒸汽锅炉

Also Published As

Publication number Publication date
FR2698681A1 (fr) 1994-06-03
DE69310875T2 (de) 1997-08-28
FR2698681B1 (fr) 1994-12-30
US5370086A (en) 1994-12-06
EP0599736A1 (de) 1994-06-01
ES2101270T3 (es) 1997-07-01
DE69310875D1 (de) 1997-06-26

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