EP0981014A1 - Centrale d'énergie et procédé pour sa mise en marche et pour la purification de son cycle eau-vapeur - Google Patents

Centrale d'énergie et procédé pour sa mise en marche et pour la purification de son cycle eau-vapeur Download PDF

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Publication number
EP0981014A1
EP0981014A1 EP98810793A EP98810793A EP0981014A1 EP 0981014 A1 EP0981014 A1 EP 0981014A1 EP 98810793 A EP98810793 A EP 98810793A EP 98810793 A EP98810793 A EP 98810793A EP 0981014 A1 EP0981014 A1 EP 0981014A1
Authority
EP
European Patent Office
Prior art keywords
steam
control valve
water
line section
bottle
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.)
Granted
Application number
EP98810793A
Other languages
German (de)
English (en)
Other versions
EP0981014B1 (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 Switzerland GmbH
Original Assignee
ABB Asea Brown Boveri Ltd
Asea Brown Boveri AB
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 Asea Brown Boveri Ltd, Asea Brown Boveri AB filed Critical ABB Asea Brown Boveri Ltd
Priority to DE59807972T priority Critical patent/DE59807972D1/de
Priority to EP98810793A priority patent/EP0981014B1/fr
Priority to US09/373,622 priority patent/US6155054A/en
Publication of EP0981014A1 publication Critical patent/EP0981014A1/fr
Application granted granted Critical
Publication of EP0981014B1 publication Critical patent/EP0981014B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B37/00—Component parts or details of steam boilers
    • F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
    • F22B37/48—Devices for removing water, salt, or sludge from boilers; Arrangements of cleaning apparatus in boilers; Combinations thereof with boilers
    • F22B37/486—Devices for removing water, salt, or sludge from boilers

Definitions

  • the present invention relates to a Steam generation and circulation system with a once-through steam generator, the at least one evaporator, a separator bottle, an expansion tank and one Feed line running to the evaporator with a feed unit from which separator bottle a Steam outlet line to a steam processing point leads away which separating bottle via a feed line is connected to the evaporator.
  • the invention is based on the object to create a steam generating plant which, if when Forced-flow boiler designed, no condensate cleaning system and no pump is needed for recirculation, and with which a start-up is combined with cleaning leaves.
  • the water container with a first press can, for example, an LP steam drum, a feed water tank or be a preheater for the system.
  • the water container with the lower, i.e. second pressure can for example the hotwell of a capacitor one of steam turbine group fed to the steam boiler system, a feed water tank or a raw water tank.
  • the procedure for operating this system during a cold start with sufficient quality of the working medium the steam-water cycle is characterized by this that the second control valve of the further line section is opened and the first, third and fourth Control valve to be closed so that the water content in the separator bottle through the further line section is drained into the second water container.
  • the procedure for operation also stands out this system for cleaning the working medium of the Steam-water cycle during a cold start with insufficient Quality of the working medium of the steam-water cycle characterized in that the third control valve in third, as a drain pipe for a large volume flow with a small pressure difference formed line section is opened and the first, second and fourth Control valve to be closed so that the water content insufficient quality in the separating bottle due to the third line section derived into the expansion tank becomes.
  • the procedure for operating the plant during a warm start with sufficient quality of the working medium of the steam-water cycle, the pressure in the Separation bottle higher than the pressure in the first water container is characterized in that the first Control valve in the recirculation line section opened is closed and the second, third and fourth control valve so that the water content in the separator bottle due to the pressure difference between them and the first water tank through the recirculation pipe section in the first water container flows.
  • the procedure for operating the plant for cleaning the steam-water cycle during a warm start, Full or partial load operation with insufficient quality of the working medium of the water-steam cycle is characterized by the fact that the evaporator acts in this way that wet steam gets into the separator bottle, and that the fourth control valve in the fourth, as a drain line for a small mass flow with a large pressure difference trained line section is opened and the first, second and third control valves are closed, so the water content inadequate quality in the separating bottle through the fourth line section is discharged into the expansion tank.
  • the advantages of the invention are essential to see that none in the water-steam cycle Condensate cleaning system is necessary.
  • the start and partial load operation is not carried out with the known classic circulation operation, in particular there is none Pump necessary and no major switching operations be made. Cleaning can also be carried out with the start-up, especially cold start-up of the system combined become.
  • the steam for the steam turbine 2 is generated by the Steam generator 1 through the live steam line 3 of the steam turbine 2 is supplied.
  • the steam turbine 2 drives you Generator 4.
  • the steam from steam turbine 2 becomes the condenser 5 supplied with a Hotwell 6.
  • the feed water pump is designated by the reference number 28.
  • a recirculation line section branches from the outflow line 15 16, in which a first Control valve 17 is arranged and the ND drum 10th runs back.
  • the outflow line 15 settles over one another line section 25 to the hotwell of the capacitor 5 continues.
  • a second control valve 23 is arranged in this further line section 25 .
  • the LP drum 10 is thus in operation Attach a water container with an initial pressure to the is lower than the pressure in the separating bottle 13, and the Hotwell 6 a water container with a second Pressure that is lower than the first pressure.
  • a water container with a first pressure can also be an ND drum in other versions Feed water tank or a preheater are used.
  • the first mentioned drain pipe i.e. the third line section 18 is for a larger mass flow at a first, small pressure difference between the separating bottle 13 and the expansion tank 22, and the second drain pipe, i.e. the fourth line section 20 for a smaller mass flow at a second pressure difference that is greater than the first pressure difference is formed.
  • the third control valve 19 in the third line section 18 is in the open position, the first control valve 17 in the recirculation line section 16 the low pressure drum 10, the second control valve 23 in another line section 25 in front of the Hotwell 6 and that fourth control valve 21 in the fourth line section 20 before the relaxation tank 22 are closed.
  • the third line section 18 is for one large mass flow with a small pressure difference between Separation bottle 13 and expansion tank 22 designed, and so the water can be drawn off until there is sufficient water quality. That below from the Relaxation tank 22 outflowing water is known in the Discharged into a processing plant.
  • the one at Steam forming at temperatures above 100 ° C flows through the Outlet 24 from the expansion tank.
  • the pressure in the separating bottle 13 With a warm start with sufficient water quality, the pressure in the separating bottle 13 is higher than the pressure in the low pressure drum 10, becomes the first control valve 17 in the recirculation section 16 opened and the second control valve 23 in the Hotwell 6 leading another line section 25, the third 19 and fourth control valve 21 before the expansion tank 22 will be closed.
  • the separator bottle 13 located or in the separating bottle 13 coming Water can so alone in the low pressure drum 10 be recirculated by the pressure difference and thus remains in the steam-water cycle.
  • the feed unit 11 is compared in one operated with increased throughput during normal operation, so that 8 wet steam at the outlet of the HD evaporator with a water content of the steam of 5-20%.
  • the pressure difference between the separating bottle 13 and the expansion tank 22 is high, e.g. between 60 and 180 bar.
  • This fourth line section 20 is for a small one Mass flow designed with a large pressure difference.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Control Of Steam Boilers And Waste-Gas Boilers (AREA)
EP98810793A 1998-08-18 1998-08-18 Centrale d'énergie et procédé pour sa mise en marche et pour la purification de son cycle eau-vapeur Expired - Lifetime EP0981014B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE59807972T DE59807972D1 (de) 1998-08-18 1998-08-18 Dampfkraftanlage und Verfahren zum Anfahren und zur Reinigung deren Dampf-Wasserkreislaufs
EP98810793A EP0981014B1 (fr) 1998-08-18 1998-08-18 Centrale d'énergie et procédé pour sa mise en marche et pour la purification de son cycle eau-vapeur
US09/373,622 US6155054A (en) 1998-08-18 1999-08-13 Steam power plant and method of and cleaning its steam/water cycle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP98810793A EP0981014B1 (fr) 1998-08-18 1998-08-18 Centrale d'énergie et procédé pour sa mise en marche et pour la purification de son cycle eau-vapeur

Publications (2)

Publication Number Publication Date
EP0981014A1 true EP0981014A1 (fr) 2000-02-23
EP0981014B1 EP0981014B1 (fr) 2003-04-16

Family

ID=8236256

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98810793A Expired - Lifetime EP0981014B1 (fr) 1998-08-18 1998-08-18 Centrale d'énergie et procédé pour sa mise en marche et pour la purification de son cycle eau-vapeur

Country Status (3)

Country Link
US (1) US6155054A (fr)
EP (1) EP0981014B1 (fr)
DE (1) DE59807972D1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10116034A1 (de) * 2001-03-30 2002-10-02 Alstom Switzerland Ltd Verfahren zur Verhinderung von Ablagerungen in Dampfsystemen
EP2195515A1 (fr) * 2007-10-12 2010-06-16 Doty Scientific Inc. Cycle de rankine organique à double source haute température avec séparations de gaz
ITMI20102121A1 (it) * 2010-11-16 2012-05-17 Ansaldo Energia Spa Impianto a ciclo combinato per la produzione di energia e metodo per operare tale impianto
EP3086033A1 (fr) * 2015-04-22 2016-10-26 Siemens Aktiengesellschaft Procédé et dispositif pour le démarrage d'un générateur de vapeur en continu

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6371058B1 (en) 2000-04-20 2002-04-16 Peter Tung Methods for recycling process wastewater streams
CN100578083C (zh) * 2004-01-20 2010-01-06 西门子公司 用于从蒸汽动力设备中脱水的方法和装置
US9217566B2 (en) * 2007-03-27 2015-12-22 Boyle Energy Services & Technology, Inc. Method and apparatus for commissioning power plants
US8851024B2 (en) * 2011-12-07 2014-10-07 Alstom Technology Ltd Water reservoir for a steam generation system and method of use thereof
US8925320B1 (en) * 2013-09-10 2015-01-06 Kalex, Llc Methods and apparatus for optimizing the performance of organic rankine cycle power systems
CN106608371A (zh) * 2015-10-23 2017-05-03 中国飞行试验研究院 一种用于飞机试验的蒸发式负载罐
WO2023043605A1 (fr) * 2021-08-30 2023-03-23 Energy Water Solutions, LLC Système de rétention de chaleur géothermique et procédé pour une utilisation directe dans l'évaporation par pulvérisation d'eau

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3021824A (en) * 1956-11-22 1962-02-20 Sulzer Ag Forced flow steam generating plant
EP0359735A1 (fr) * 1988-09-14 1990-03-21 AUSTRIAN ENERGY & ENVIRONMENT SGP/WAAGNER-BIRO GmbH Chaudière de récupération
EP0561220A1 (fr) * 1992-03-16 1993-09-22 Siemens Aktiengesellschaft Procédé pour le fonctionnement d'une installation de génération de vapeur et générateur de vapeur
EP0777035A1 (fr) * 1995-11-28 1997-06-04 Asea Brown Boveri Ag Centrale combinée à chaudière à pressions multiples
DE19544225A1 (de) * 1995-11-28 1997-06-05 Asea Brown Boveri Reinigung des Wasser-Dampfkreislaufs in einem Zwangsdurchlauferzeuger

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4843824A (en) * 1986-03-10 1989-07-04 Dorothy P. Mushines System for converting heat to kinetic energy
US4901532A (en) * 1988-10-05 1990-02-20 Westinghouse Electric Corp. System for routing preseparator drains
US4976100A (en) * 1989-06-01 1990-12-11 Westinghouse Electric Corp. System and method for heat recovery in a combined cycle power plant
US5165237A (en) * 1991-03-08 1992-11-24 Graham Corporation Method and apparatus for maintaining a required temperature differential in vacuum deaerators

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3021824A (en) * 1956-11-22 1962-02-20 Sulzer Ag Forced flow steam generating plant
EP0359735A1 (fr) * 1988-09-14 1990-03-21 AUSTRIAN ENERGY & ENVIRONMENT SGP/WAAGNER-BIRO GmbH Chaudière de récupération
EP0561220A1 (fr) * 1992-03-16 1993-09-22 Siemens Aktiengesellschaft Procédé pour le fonctionnement d'une installation de génération de vapeur et générateur de vapeur
EP0777035A1 (fr) * 1995-11-28 1997-06-04 Asea Brown Boveri Ag Centrale combinée à chaudière à pressions multiples
DE19544225A1 (de) * 1995-11-28 1997-06-05 Asea Brown Boveri Reinigung des Wasser-Dampfkreislaufs in einem Zwangsdurchlauferzeuger

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10116034A1 (de) * 2001-03-30 2002-10-02 Alstom Switzerland Ltd Verfahren zur Verhinderung von Ablagerungen in Dampfsystemen
EP2195515A1 (fr) * 2007-10-12 2010-06-16 Doty Scientific Inc. Cycle de rankine organique à double source haute température avec séparations de gaz
EP2195515A4 (fr) * 2007-10-12 2011-11-23 Doty Scient Inc Cycle de rankine organique à double source haute température avec séparations de gaz
ITMI20102121A1 (it) * 2010-11-16 2012-05-17 Ansaldo Energia Spa Impianto a ciclo combinato per la produzione di energia e metodo per operare tale impianto
WO2012066490A1 (fr) * 2010-11-16 2012-05-24 Ansaldo Energia S.P.A. Installation à cycle combiné pour production d'énergie et procédé de fonctionnement de ladite installation
EP3086033A1 (fr) * 2015-04-22 2016-10-26 Siemens Aktiengesellschaft Procédé et dispositif pour le démarrage d'un générateur de vapeur en continu

Also Published As

Publication number Publication date
DE59807972D1 (de) 2003-05-22
US6155054A (en) 2000-12-05
EP0981014B1 (fr) 2003-04-16

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