EP0635113A1 - Verfahren zur erzeugung von dampf in einem zwangdurchlaufdampferzeuger - Google Patents
Verfahren zur erzeugung von dampf in einem zwangdurchlaufdampferzeugerInfo
- Publication number
- EP0635113A1 EP0635113A1 EP94907522A EP94907522A EP0635113A1 EP 0635113 A1 EP0635113 A1 EP 0635113A1 EP 94907522 A EP94907522 A EP 94907522A EP 94907522 A EP94907522 A EP 94907522A EP 0635113 A1 EP0635113 A1 EP 0635113A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- evaporator
- water
- steam
- preheater
- boiler
- 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.)
- Withdrawn
Links
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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B35/00—Control systems for steam boilers
- F22B35/06—Control systems for steam boilers for steam boilers of forced-flow type
- F22B35/10—Control systems for steam boilers for steam boilers of forced-flow type of once-through type
- F22B35/101—Control systems for steam boilers for steam boilers of forced-flow type of once-through type operating with superimposed recirculation during starting or low load periods, e.g. composite boilers
Definitions
- the invention relates to a method for generating steam in a once-through steam generator, in particular BENSON steam generator, which is mentioned in the preamble of claim 1.
- the evaporator is divided into at least two sections, one of which is supplied with water at the start of the start-up operation, and the circulation circuit is included, while the other is controlled from a dry state Is acted upon with water until the two evaporator sections are successively flowed through in the operating state.
- the "dry" evaporator section at the start of the start-up ensures that at the beginning of the evaporation in the evaporator part to which water is applied, only such an amount of water is discharged that can be reliably grasped by the separating bottle.
- the part of the evaporator which is first flowed through by the gas from which the waste heat is to be removed is preferably kept in the circulating circuit at the start of the starting operation.
- a three-way valve in the connecting line between the feed water flow-through and the evaporator, the branch line of which leads as a bypass line to the evaporator section to be charged with water.
- the invention is also directed to an apparatus for performing the method.
- the method according to the invention and the device according to the invention will now be described with reference to the accompanying FIG. are explained in more detail.
- FIG. shows: a waste heat boiler 1 is traversed by an exhaust gas G, from which heat is to be extracted.
- the gas first flows through a superheater 2, then enters an evaporator section 3; thereafter it flows through an evaporator section 4 and a feed water preheater 5 connected downstream of it.
- the feed water preheater 5 is acted upon by feed water supplied by a feed water pump 6 via a line 6a.
- a three-way valve 8 is arranged in the connecting line 7 between the feed water preheater 5 and the evaporator section 4.
- the branch line 9 is connected to the connecting line 10 between the two evaporator sections 4 and 3.
- a check valve 12 is arranged in the line 10, which closes when the flow flows through line 9 and opens the flow section 4 out of the evaporator.
- the evaporator 3 is also connected via a line 13 to a separating bottle 14, from which water can be conveyed on the pressure side of the feed water pump 6 into the feed water line 6 a leading to the preheater 5 during start-up operation via a line 15 and a circulation circuit pump 16. Steam can be drawn off from the separating bottle 14 via a line 17 and can be led to its superheating on the superheater 2.
- the evaporator heating surface 4 When starting up, the evaporator heating surface 4 is initially kept dry and only the evaporator heating surface 3 is charged with water. Then the three-way valve 8 is adjusted in a controlled manner, so that the evaporator section 4 in a predetermined manner with water is applied. At the latest when the full load is reached, the bypass line 9 is no longer acted upon.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Control Of Steam Boilers And Waste-Gas Boilers (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4303613A DE4303613C2 (de) | 1993-02-09 | 1993-02-09 | Verfahren zur Erzeugung von Dampf in einem Zwangsdurchlaufdampferzeuger |
DE4303613 | 1993-02-09 | ||
PCT/EP1994/000367 WO1994018498A1 (de) | 1993-02-09 | 1994-02-09 | Verfahren zur erzeugung von dampf in einem zwangdurchlaufdampferzeuger |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0635113A1 true EP0635113A1 (de) | 1995-01-25 |
Family
ID=6479895
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP94907522A Withdrawn EP0635113A1 (de) | 1993-02-09 | 1994-02-09 | Verfahren zur erzeugung von dampf in einem zwangdurchlaufdampferzeuger |
Country Status (4)
Country | Link |
---|---|
US (1) | US5588400A (de) |
EP (1) | EP0635113A1 (de) |
DE (1) | DE4303613C2 (de) |
WO (1) | WO1994018498A1 (de) |
Families Citing this family (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19544225A1 (de) * | 1995-11-28 | 1997-06-05 | Asea Brown Boveri | Reinigung des Wasser-Dampfkreislaufs in einem Zwangsdurchlauferzeuger |
BE1010594A3 (fr) * | 1996-09-02 | 1998-11-03 | Cockerill Mech Ind Sa | Procede de conduite d'une chaudiere a circulation forcee et chaudiere pour sa mise en oeuvre. |
JP2002507272A (ja) * | 1997-06-30 | 2002-03-05 | シーメンス アクチエンゲゼルシヤフト | 廃熱ボイラ |
DE19907451A1 (de) * | 1999-02-22 | 2000-08-24 | Abb Alstom Power Ch Ag | Verfahren zum Anfahren eines Zwangdurchlauf-Abhitzekessels und Vorrichtung zur Durchführung des Verfahrens |
DE19926326A1 (de) | 1999-06-09 | 2000-12-14 | Abb Alstom Power Ch Ag | Verfahren und Anlage zum Erwärmen eines flüssigen Mediums |
DE10117989C1 (de) * | 2001-04-10 | 2002-05-23 | Alstom Power Energy Recovery Gmbh | Dampferzeuger |
EP1288567A1 (de) * | 2001-08-31 | 2003-03-05 | Siemens Aktiengesellschaft | Verfahren zum Anfahren eines Dampferzeugers mit einem in einer annähernd horizontalen Heizgasrichtung durchströmbaren Heizgaskanal und Dampferzeuger |
EP1512905A1 (de) * | 2003-09-03 | 2005-03-09 | Siemens Aktiengesellschaft | Durchlaufdampferzeuger sowie Verfahren zum Betreiben des Durchlaufdampferzeugers |
EP1512906A1 (de) * | 2003-09-03 | 2005-03-09 | Siemens Aktiengesellschaft | Durchlaufdampferzeuger in liegender Bauweise und Verfahren zum Betreiben des Durchlaufdampferzeugers |
DE602004024705D1 (de) * | 2004-12-29 | 2010-01-28 | Son S R L | Dampferzeuger |
EP1710498A1 (de) * | 2005-04-05 | 2006-10-11 | Siemens Aktiengesellschaft | Dampferzeuger |
US7243618B2 (en) * | 2005-10-13 | 2007-07-17 | Gurevich Arkadiy M | Steam generator with hybrid circulation |
JP4718333B2 (ja) * | 2006-01-10 | 2011-07-06 | バブコック日立株式会社 | 貫流式排熱回収ボイラ |
CN100572972C (zh) * | 2006-05-22 | 2009-12-23 | 余传林 | 废热锅炉 |
EP2195532B8 (de) * | 2007-09-11 | 2016-12-21 | Siemens Concentrated Solar Power Ltd. | Solarthermische kraftwerke |
DE102010048065A1 (de) * | 2010-10-12 | 2012-04-12 | Martin GmbH für Umwelt- und Energietechnik | Vorrichtung mit einem Wärmetauscher und Verfahren zum Betreiben eines Wärmetauschers einer Dampferzeugungsanlage |
WO2013185909A1 (de) * | 2012-06-12 | 2013-12-19 | Linde Aktiengesellschaft | Verfahren zum betreiben eines kraftwerks sowie kraftwerk |
JP6239739B2 (ja) | 2013-09-19 | 2017-11-29 | シーメンス アクティエンゲゼルシャフト | 排熱蒸気発生器を有する複合サイクルガスタービンプラント |
EP3048366A1 (de) * | 2015-01-23 | 2016-07-27 | Siemens Aktiengesellschaft | Abhitzedampferzeuger |
EP3330609A1 (de) | 2016-12-02 | 2018-06-06 | Alfa Laval Corporate AB | Dampferzeugungssystem und verfahren zur erzeugung von dampf |
DE102017205382A1 (de) | 2017-03-30 | 2018-10-04 | Siemens Aktiengesellschaft | Wasserrückführung in vertikalen Zwangdurchlaufdampferzeugern |
US10900418B2 (en) * | 2017-09-28 | 2021-01-26 | General Electric Company | Fuel preheating system for a combustion turbine engine |
EP3835653A1 (de) * | 2019-12-11 | 2021-06-16 | Siemens Aktiengesellschaft | Heissverdampferbefüllung |
FR3106198B1 (fr) * | 2020-01-10 | 2022-01-14 | Commissariat Energie Atomique | Echangeur thermique partitionné, unité de valorisation d'énergie thermique et dispositif de stérilisation associé |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB768201A (en) * | 1955-03-24 | 1957-02-13 | Babcox & Wilcox Ltd | Improvements relating to forced flow once through tubulous vapour generating and superheating units and to the starting of turbines arranged to be supplied with vapour from such units |
US3120839A (en) * | 1961-12-28 | 1964-02-11 | Duerrwerke Ag | Device for low load operation of once-through boilers |
DE1551064A1 (de) * | 1966-09-22 | 1970-01-29 | Ver Kesselwerke Ag | Zwangdurchlaufkessel mit geschweissten Rohrwaenden und einer Umwaelzvorrichtung fuer Schwachlast |
SE312563B (de) * | 1966-10-28 | 1969-07-21 | Svenska Maskinverken Ab | |
DE1551065A1 (de) * | 1967-06-23 | 1970-03-19 | Ver Kesselwerke Ag | Sicherheitsvorrichtung fuer die Schwachlasteinrichtungen eines Zwangdurchlaufkessels |
US3576178A (en) * | 1969-12-24 | 1971-04-27 | Combustion Eng | Shell-and-tube steam generator with economizer |
US4072182A (en) * | 1977-01-05 | 1978-02-07 | International Power Technology, Inc. | Pressure staged heat exchanger |
EP0308728B1 (de) * | 1987-09-21 | 1991-06-05 | Siemens Aktiengesellschaft | Verfahren zum Betreiben eines Durchlaufdampferzeugers |
AT394627B (de) * | 1990-08-27 | 1992-05-25 | Sgp Va Energie Umwelt | Verfahren zum anfahren eines waermetauschersystems zur dampferzeugung sowie waermetauschersystem zur dampferzeugung |
-
1993
- 1993-02-09 DE DE4303613A patent/DE4303613C2/de not_active Expired - Fee Related
-
1994
- 1994-02-09 EP EP94907522A patent/EP0635113A1/de not_active Withdrawn
- 1994-02-09 WO PCT/EP1994/000367 patent/WO1994018498A1/de not_active Application Discontinuation
- 1994-02-09 US US08/313,170 patent/US5588400A/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO9418498A1 * |
Also Published As
Publication number | Publication date |
---|---|
US5588400A (en) | 1996-12-31 |
DE4303613C2 (de) | 1998-12-17 |
DE4303613A1 (de) | 1994-08-18 |
WO1994018498A1 (de) | 1994-08-18 |
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Legal Events
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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17P | Request for examination filed |
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STAA | Information on the status of an ep patent application or granted ep patent |
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Effective date: 19980721 |