EP1031788A2 - Procédé pour démarrer une chaudière de récupération à passage unique et dispositif pour la mise en oeuvre de ce procédé - Google Patents

Procédé pour démarrer une chaudière de récupération à passage unique et dispositif pour la mise en oeuvre de ce procédé Download PDF

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Publication number
EP1031788A2
EP1031788A2 EP00810061A EP00810061A EP1031788A2 EP 1031788 A2 EP1031788 A2 EP 1031788A2 EP 00810061 A EP00810061 A EP 00810061A EP 00810061 A EP00810061 A EP 00810061A EP 1031788 A2 EP1031788 A2 EP 1031788A2
Authority
EP
European Patent Office
Prior art keywords
steam
waste heat
line
heat boiler
water
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Withdrawn
Application number
EP00810061A
Other languages
German (de)
English (en)
Other versions
EP1031788A3 (fr
Inventor
Erhard Dr. Liebig
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.)
General Electric Technology GmbH
Original Assignee
ABB Alstom Power Switzerland Ltd
Alstom Schweiz AG
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 ABB Alstom Power Switzerland Ltd, Alstom Schweiz AG filed Critical ABB Alstom Power Switzerland Ltd
Publication of EP1031788A2 publication Critical patent/EP1031788A2/fr
Publication of EP1031788A3 publication Critical patent/EP1031788A3/fr
Withdrawn legal-status Critical Current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
    • F22B35/00—Control systems for steam boilers
    • F22B35/06—Control systems for steam boilers for steam boilers of forced-flow type
    • F22B35/14—Control systems for steam boilers for steam boilers of forced-flow type during the starting-up periods, i.e. during the periods between the lighting of the furnaces and the attainment of the normal operating temperature of the steam boilers
    • 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
    • F22B35/007—Control systems for waste heat boilers

Definitions

  • the invention relates to a method for starting one with a steam consumer within one Working fluid circuit related forced flow waste heat boiler, one vaporizer and at least has a superheater section in which waste heat boiler a working fluid from its liquid state is converted into its vapor state.
  • the invention further relates to one with Steam consumers within a water / steam cycle related forced flow waste heat boiler with an evaporator and at least one superheater section to carry out the procedure.
  • the invention is based on the object To create methods of the type mentioned, which a short start-up time of a steam consumer allowed. Another task is a once-through waste heat boiler or a water / steam cycle to carry out of the procedure.
  • this is achieved by the arrangement a separator inside the waste heat boiler the at least one superheater section or in the working fluid circuit achieved, which enables the Waste heat boiler or the working fluid circuit before starting to the separator with the working fluid State filled that the liquid phase of the working fluid in the waste heat boiler or in the working fluid circuit circulated and then the heat input initiated will that after the onset of steam formation a Separation between the vapor phase and the liquid phase Phase of the working fluid after the mentioned superheater section is carried out in the separator, the liquid Phase continued and the steam to a container is directed.
  • the requirements are met of the steam consumer is the supply of the steam to the named Containers prevented and the steam to the steam consumer fed.
  • the otherwise long dry and therefore uncooled Permanent superheater heating surfaces can, according to the invention at least partially for preheating and vaporizing the Heat transfer medium can be used during start-up.
  • Figure 1 shows purely schematically a water / steam cycle 25 with a once-through waste heat boiler 1, for example on the exhaust gas side of a gas turbine Exhaust gas heat utilization downstream with the heating gas inlet 28 and the hot gas outlet 29.
  • the once-through waste heat boiler 1 can also be other waste heat intensive Downstream processes for waste heat recovery.
  • To the A once-through waste heat boiler 1 includes an economizer section 2, an evaporator section 3 and a superheater section 4.
  • An outlet line goes from superheater section 4 5, followed by a connecting line 18, to the steam turbine 6, which is coupled to a generator 12 is in which connection line 18 a main shut-off device 7 is arranged.
  • An outflow line closes at the separator 8 11 with a control element 24 for removing the separated liquid phase of the working fluid, here water.
  • the Control element 24 located in the discharge line 11 is used in combination with a level display, not shown in the separator 8 for level control in the separator 8. How with the line 23 is indicated, that is by the Outflow line 11 flowing water to the once-through waste heat boiler 1 returned. That through the exhaust pipe 11 flowing water can enter the Forced-flow waste heat boiler 1 various not shown Components of the water / steam circuit 25, such as e.g. heat exchangers, pumps, fittings, etc. flow through.
  • a possibly existing reheater would be present Bypass concept in bypass mode does not have steam flowing through it, i.e. not cooled because the live steam is directly in the capacitor / hotwell 14 is derived.
  • At the condenser / hotwell 14 closes the condensate / feed water line 15 on, via which the condensate / feed water to Forced-flow waste heat boiler 1 is returned.
  • the condensate / feed water before entering the once-through waste heat boiler 1 different components of the Water / steam circuit 25, such as pumps, Flow through heat exchangers, fittings, etc.
  • control element 24 and that in the separator 8 existing level control is during filling but also during start-up, for example specified level range met.
  • the main shut-off device 7 in the connecting line 18 is closed, the branch shut-off device 10 in the branch line 9 is open.
  • the superheater 4 during starting up as an economizer for preheating, after reaching the saturation conditions as an evaporator and operated as superheater only after saturated steam.
  • the regulation of the fresh steam temperature at the outlet of the superheater takes place via the feed water mass flow at the entrance to the once-through waste heat boiler 1, where the evaporation end point within the heating surfaces is moved. This can cause the superheater to exit stable steam temperatures with little overheating be driven, which is ultimately an early and quick start of the steam turbine.
  • the steam turbine can be used in extreme cases be started with saturated steam.
  • the evaporation end point in this case lies at the end of the superheater heating surfaces.
  • FIG. 2 shows an embodiment according to which the outlet line 5 directly to the separator 8 runs.
  • a steam supply line runs from the separator 8 17 to the steam turbine 6, in which the main shut-off device 7 is arranged.
  • the separator 8 is the separator 8 as Outflow line 11 defined line for separated Water connected through which discharge line 11 that Water, as indicated by the arrow in line 23 is returned to the once-through waste heat boiler 1 becomes.
  • the bypass line branches in front of the main shut-off element 7 13 in which the branch shut-off device 10 is arranged is which bypass line 13 to the condenser / hotwell 14 runs.
  • the main shut-off device 7 is opened and the branch shut-off device 10 closed, whereby the steam to Steam turbine 6 can flow and this is started.
  • the steam turbine 6 by the arrangement of the separator 8 within the water / steam cycle already started with saturated steam be when the once-through waste heat boiler 1 at the outlet only delivers wet steam.
  • the arrangement of the separator according to that in the Figure 3 shows the same arrangement Fig. 1.
  • the bypass line 13 does not run here directly to the capacitor / Hotwell 14, but in the to the reheater 16 leading cold reheater line 26.
  • the hot reheater line 27 in which a low-pressure shut-off device 19 is arranged is to the low pressure part of the steam turbine 6.
  • From the hot reheater line 27 branches a bypass line 20 with a bypass shut-off device 21, which bypass line 20 runs to the capacitor / hotwell 14. Consequently is with this version with a cooled reheater the live steam generated in bypass operation the reheater 16 into the condenser / hotwell 14 derived.
  • the control of the shut-off devices 7, 10, 19 and 21 is carried out according to the same method as in the previous ones described versions. Shut-off devices 7, 19 are opened and the shut-off devices 10, 21 are closed, once the steam meets the requirements of the steam turbine 6 corresponds.
  • the arrangement of the separator 8 according to the in the embodiment shown in Figure 4 corresponds to that 2.
  • the Reheater 16 analogous to the embodiment according to FIG. 3 flows through the steam in bypass operation.
  • the start-up procedure corresponds to that of the embodiment according to FIGS. 3 and need not be described again.
  • the start-up is the same as with the Fig. 1 described method, with the exception that in Bypass operation, i.e. until the requirements are met the steam turbine 6 corresponding steam steam does not flow through second superheater section 22 and not cooling. That means that if that third branch shut-off device 10 closed and the main shut-off device 7 are opened, the steam turbine 6 flowing steam through the second superheater section 22 additional heat is supplied, which makes this steam additional is overheated.
  • Figure 6 also shows an embodiment with a once-through waste heat boiler 1, the two superheater sections 4 and 22, the separator 8 with respect to the flow direction of the steam between the first superheater section 4 and the second superheater section 22 is arranged.
  • Approach takes place analogously for execution according to FIG. 2, but with the exception that before the steam flowing through the separator 8 the entry into the steam turbine 6 by the second Superheater section 22 continues to be supplied with heat.
  • FIG. 7 The embodiment of Figure 7 is the same 3 to compare. That means in bypass operation the reheater 16, 16a becomes steam flows through.
  • the branch of the branch line 9 with the Branch shut-off device 10 takes place analogously to FIG. 5 between the first superheater section 4 and the second superheater section 22, and in front of the main shut-off device 7. Also here is the steam when starting the steam turbine 6 additional heat due to the second superheater section 22 fed.
  • the embodiment according to FIG. 8 again has two Superheater sections 4 and 22, the steam analog 6 after the first superheater 4 is fed to the separator 8 through the line 5.
  • the steam is bypassed by the reheater 16, 16a to the capacitor / hotwell 14.
  • the shut-off devices 7 and 19 initially still closed and the shut-off devices 10 and 21 open, so that the bypass operation via the reheater 16, 16a takes place. If the steam reaches parameters that meet the requirements of the steam turbine 6, the Shut-off devices 7 and 19 opened and the shut-off devices 10 and 21 closed, allowing steam from the second superheater section 22 flows to the steam turbine, the steam additional heat due to the second superheater section 22 is fed.

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  • 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)
EP00810061A 1999-02-22 2000-01-24 Procédé pour démarrer une chaudière de récupération à passage unique et dispositif pour la mise en oeuvre de ce procédé Withdrawn EP1031788A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19907451A DE19907451A1 (de) 1999-02-22 1999-02-22 Verfahren zum Anfahren eines Zwangdurchlauf-Abhitzekessels und Vorrichtung zur Durchführung des Verfahrens
DE19907451 1999-02-22

Publications (2)

Publication Number Publication Date
EP1031788A2 true EP1031788A2 (fr) 2000-08-30
EP1031788A3 EP1031788A3 (fr) 2002-04-17

Family

ID=7898366

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Application Number Title Priority Date Filing Date
EP00810061A Withdrawn EP1031788A3 (fr) 1999-02-22 2000-01-24 Procédé pour démarrer une chaudière de récupération à passage unique et dispositif pour la mise en oeuvre de ce procédé

Country Status (3)

Country Link
US (1) US6250258B1 (fr)
EP (1) EP1031788A3 (fr)
DE (1) DE19907451A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102200266A (zh) * 2010-02-26 2011-09-28 通用电气公司 用于预加温热回收蒸汽发生器管系的系统和方法

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10116387A1 (de) * 2001-04-02 2002-10-10 Alstom Switzerland Ltd Verfahren zum Starten einer Dampfturbinenanlage sowie ein Verfahren zum Vorwärmen einer Dampfturbine
EP1288567A1 (fr) * 2001-08-31 2003-03-05 Siemens Aktiengesellschaft Générateur de vapeur et procédé de démarrage d'un générateur de vapeur ayant un canal de gas de chauffage, celui-ci étant traversé par le gas de chauffage avec une direction sensiblement horizontale
US6986264B1 (en) * 2004-07-15 2006-01-17 Carrier Corporation Economized dehumidification system
US7174715B2 (en) * 2005-02-02 2007-02-13 Siemens Power Generation, Inc. Hot to cold steam transformer for turbine systems
US8387386B2 (en) * 2006-11-14 2013-03-05 Ford Global Technologies, Llc Combination rankine cycle system and hydraulic accumulator system
US7841306B2 (en) * 2007-04-16 2010-11-30 Calnetix Power Solutions, Inc. Recovering heat energy
US8839622B2 (en) * 2007-04-16 2014-09-23 General Electric Company Fluid flow in a fluid expansion system
US7797938B2 (en) * 2007-07-31 2010-09-21 Caterpillar Inc Energy recovery system
EP2065641A3 (fr) * 2007-11-28 2010-06-09 Siemens Aktiengesellschaft Procédé de fonctionnement d'un générateur de vapeur en flux continu, ainsi que générateur de vapeur en flux à sens unique
EP2119880A1 (fr) * 2008-02-15 2009-11-18 Siemens Aktiengesellschaft Procédé destiné à démarrer une chaudière à vapeur
US8240370B2 (en) * 2009-12-18 2012-08-14 Air Products And Chemicals, Inc. Integrated hydrogen production and hydrocarbon extraction
DE102010028426A1 (de) * 2010-04-30 2011-11-03 Siemens Aktiengesellschaft Dampferzeuger
US8739538B2 (en) 2010-05-28 2014-06-03 General Electric Company Generating energy from fluid expansion
DE102010041903B4 (de) * 2010-10-04 2017-03-09 Siemens Aktiengesellschaft Durchlaufdampferzeuger mit integriertem Zwischenüberhitzer
SE535318C2 (sv) * 2010-12-01 2012-06-26 Scania Cv Ab Arrangemang och förfarande för att omvandla värmeenergi till mekanisk energi
US9018778B2 (en) 2012-01-04 2015-04-28 General Electric Company Waste heat recovery system generator varnishing
US8984884B2 (en) 2012-01-04 2015-03-24 General Electric Company Waste heat recovery systems
US9024460B2 (en) 2012-01-04 2015-05-05 General Electric Company Waste heat recovery system generator encapsulation
CN107687663B (zh) * 2017-08-30 2023-05-12 联合瑞升（北京）科技有限公司 一种多类型热泵组合式乏汽回收供热系统和供热方法

Citations (6)

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Publication number Priority date Publication date Assignee Title
US3120839A (en) * 1961-12-28 1964-02-11 Duerrwerke Ag Device for low load operation of once-through boilers
US3259111A (en) * 1964-06-25 1966-07-05 Babcock & Wilcox Co Start-up system for forced flow vapor generator
DE1230037B (de) * 1962-06-27 1966-12-08 Ver Kesselwerke Ag Anfahrvorrichtung fuer eine Dampfkraftanlage mit Zwangdurchlaufkessel
US3368533A (en) * 1965-02-13 1968-02-13 Steinmueller Gmbh L & C Method of starting forced-flow steam producers
US4869210A (en) * 1987-09-21 1989-09-26 Siemens Aktiengesellschaft Method of operating a once-through steam generator
US5588400A (en) * 1993-02-09 1996-12-31 L. & C. Steinmuller Gmbh Method of generating steam in a forced-through-flow boiler

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DE1228623B (de) * 1963-07-23 1966-11-17 Sulzer Ag Dampfkraftanlage mit Zwanglaufdampferzeuger und Zwischenueberhitzer
DE1290940B (de) * 1965-09-18 1969-03-20 Duerrwerke Ag Einrichtung zum Anfahren und fuer den Schwachlastbetrieb von Zwangdurchlaufdampferzeugern
CH632331A5 (de) * 1978-10-03 1982-09-30 Sulzer Ag Verfahren zum anfahren eines zwanglaufdampferzeugers.
CH635184A5 (de) * 1978-12-22 1983-03-15 Sulzer Ag Dampferzeugeranlage.
US4487166A (en) * 1981-06-08 1984-12-11 The Babcock & Wilcox Company Start-up system for once-through boilers
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Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3120839A (en) * 1961-12-28 1964-02-11 Duerrwerke Ag Device for low load operation of once-through boilers
DE1230037B (de) * 1962-06-27 1966-12-08 Ver Kesselwerke Ag Anfahrvorrichtung fuer eine Dampfkraftanlage mit Zwangdurchlaufkessel
US3259111A (en) * 1964-06-25 1966-07-05 Babcock & Wilcox Co Start-up system for forced flow vapor generator
US3368533A (en) * 1965-02-13 1968-02-13 Steinmueller Gmbh L & C Method of starting forced-flow steam producers
US4869210A (en) * 1987-09-21 1989-09-26 Siemens Aktiengesellschaft Method of operating a once-through steam generator
US5588400A (en) * 1993-02-09 1996-12-31 L. & C. Steinmuller Gmbh Method of generating steam in a forced-through-flow boiler

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102200266A (zh) * 2010-02-26 2011-09-28 通用电气公司 用于预加温热回收蒸汽发生器管系的系统和方法
US8776521B2 (en) 2010-02-26 2014-07-15 General Electric Company Systems and methods for prewarming heat recovery steam generator piping
CN102200266B (zh) * 2010-02-26 2014-12-24 通用电气公司 用于预加温热回收蒸汽发生器管系的系统和方法

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Publication number Publication date
US6250258B1 (en) 2001-06-26
DE19907451A1 (de) 2000-08-24
EP1031788A3 (fr) 2002-04-17

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