EP1116862A2 - Procédé et installation de production de vapeur - Google Patents

Procédé et installation de production de vapeur Download PDF

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Publication number
EP1116862A2
EP1116862A2 EP00126349A EP00126349A EP1116862A2 EP 1116862 A2 EP1116862 A2 EP 1116862A2 EP 00126349 A EP00126349 A EP 00126349A EP 00126349 A EP00126349 A EP 00126349A EP 1116862 A2 EP1116862 A2 EP 1116862A2
Authority
EP
European Patent Office
Prior art keywords
steam generator
feed water
waste heat
steam
heat 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.)
Granted
Application number
EP00126349A
Other languages
German (de)
English (en)
Other versions
EP1116862B1 (fr
EP1116862A3 (fr
Inventor
Bernd Gericke
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.)
MAN Energy Solutions SE
Original Assignee
MAN Turbomaschinen AG GHH Borsig
MAN Turbomaschinen 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 MAN Turbomaschinen AG GHH Borsig, MAN Turbomaschinen AG filed Critical MAN Turbomaschinen AG GHH Borsig
Publication of EP1116862A2 publication Critical patent/EP1116862A2/fr
Publication of EP1116862A3 publication Critical patent/EP1116862A3/fr
Application granted granted Critical
Publication of EP1116862B1 publication Critical patent/EP1116862B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22STEAM GENERATION
    • F22BMETHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B1/00Methods of steam generation characterised by form of heating method
    • F22B1/02Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
    • F22B1/18Methods 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
    • F22B1/183Methods 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 in combination with metallurgical converter installations
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01KSTEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K3/00Plants characterised by the use of steam or heat accumulators, or intermediate steam heaters, therein
    • F01K3/18Plants characterised by the use of steam or heat accumulators, or intermediate steam heaters, therein having heaters
    • F01K3/185Plants characterised by the use of steam or heat accumulators, or intermediate steam heaters, therein having heaters using waste heat from outside the plant

Definitions

  • the invention relates to a method for generating steam in a steam generator system with a gas fired with blast furnace gas Steam generator and a steam generator system.
  • the invention is based on the object of the generic type Developing processes in such a way that they are based on support firing with noble fuels in the combustion of the blast furnace gas in Continuous operation can be dispensed with.
  • Waste heat is generated in sinter cooling systems in metallurgical plants, in which at the same time top gas as waste gas from the blast furnace process is produced. From the sintered fine ores to the cooling air emitted heat is over according to the invention Heat exchanger surfaces in the waste heat boiler by Heat transfer system in the high pressure system of the steam generator coupled. So that waste heat with different and especially low temperature level and waste gas with fluctuating and in particular low calorific value for generation exploited by steam.
  • the heat utilization in the area of the sinter cooling systems is designed due to the special temperature and Cooling air quantity ratios are particularly complex.
  • Cooling air is extracted from heat, making heat sources different Temperature levels arise.
  • a special waste heat boiler concept is required.
  • the most interesting part of the waste heat from the Sinter cooling system only makes up a small percentage of the total amount of cooling air. While this is proportionate low cooling air mass flow thanks to its higher gas temperature lends itself particularly to high feed water preheating the larger cooling air mass flow with low temperature remaining feed water preheating used.
  • the temperature of the feed water is checked before entering the Heat exchanger surfaces of the waste heat boiler on the physical lowest possible value lowered. It is advantageous if the feed water through the heat exchange with the recycled steam turbine condensate is cooled. The on this way, lowered temperature of the feed water also allows extract heat from the low-temperature sintered cooling air.
  • the heat transfer system consists of two external ones additional preheaters, some of which is the waste heat Add top gas to all combustion air and fuel. This increases the calorific value of the blast furnace gas to such an extent that in normal operation no support fire over high calorific Noble fuels like natural gas is necessary.
  • FIG. 1 An embodiment of the invention is in the drawing shown and is explained in more detail below.
  • the drawing shows a process scheme for generating steam.
  • a steam generator 1 which works according to the natural circulation principle contains a combustion chamber 2, the one from top to bottom flowed flue gas duct 3 is connected. By doing Flue gas duct 3 are secondary heating surfaces like superheater 4 and the convection evaporator 4a. Instead of one Maturum steam generator can also be a forced circulation or a Forced-flow steam generators are used. It can also another than the flue gas duct shown, e.g. B. according to Art a tower boiler can be used.
  • the steam generator 1 is fired with blast furnace gas.
  • the combustion chamber 2 is shown on the front side with only schematically Provide burners 5.
  • the burners 5 have an air line 6 for supplying combustion air and with a top gas line 7 connected to the supply of blast furnace gas.
  • This emergency fuel is fed to the burners 5 via a gas line 8.
  • a steam line 9 is connected to the superheater 4 of the steam generator 1 connected, which is guided to a steam turbine 10.
  • the Steam turbine 10 has a generator 11 for generating electricity coupled.
  • the steam turbine 10 can be regulated Withdrawal 12 process steam can be extracted into a steam network is fed.
  • the outlet of the steam turbine 10 is connected to an exhaust steam line 13 connected, which is led to a capacitor 14.
  • Condenser 14 the exhaust steam is condensed, and that Steam turbine condensate is in via a condensate line 15 a feed pump 16 is arranged to a degasser 17 promoted.
  • the degasser 17 is operated with bleed steam is removed from the steam turbine 10 via a bleed line 18.
  • a feed water line 19 is connected to the degasser 17 connected in which a feed water pump 20 is arranged, which the pressure of the feed water to the process pressure of the Steam generator 1 increased.
  • the feed water line 19 is between the degasser 17 and the feed water pump 20 Water / water heat exchanger 21 arranged, the at the same time the condensate line 15 is connected.
  • the feed water line 19 is connected in parallel Heat exchanger surfaces 22 performed in a waste heat boiler 23rd are arranged. Downstream from the heat exchanger surfaces 22 is the feed water line 19 with an external air preheater 24, to which the air line 6 is connected, and in parallel for this purpose with a gas preheater 25 to which the top gas line 7 connected, connected. Following the air preheater 24 and the gas preheater 25 is the feed water line 19 a feed water preheater 26 led by the flue gas is flowed through, which leaves the steam generator 1. This Feed water preheater 26 is on the water side with the water-steam cycle of the steam generator 1 connected.
  • the waste heat boiler 23 is a sintering system for sintering Subsequent fine ores on a sintered belt.
  • the Sintering process becomes air that rests on the sintering belt Layer of the sintered mixture or the sinter supplied. Through the Air becomes the sintering process through the combustion of the Maintain sintered mixture of mixed fine coal.
  • To Sintering is carried out by additional fans with cooling air pressed or sucked the sinter. This way it falls lengthways of the sintered cooling belt SK1 in the gas flue 30 with exhaust air different temperatures and in different amounts or, as shown in the throttle cable 31, cooling air with a corresponding mixing temperature on the sintered cooling belt SK2.
  • the waste heat boiler 23 is divided into two and has two throttle cables 30, 31.
  • the heat exchanger surfaces 22 are distributed to these two throttle cables 30, 31.
  • the throttle cables 30, 31 des Waste heat boilers 23 are with connecting pieces for the different exhaust gas flows 27, 28, 29 provided.
  • Both sinter cooling systems SK1 and SK2 can be used to the heat extraction described above also in series be switched.
  • the feed water is before entering the Heat exchanger surfaces 22 of the waste heat boiler 23 on the physically lowest possible temperature cooled. Consists due to the composition of the waste heat boiler 23 exhaust gases flowing through there is no risk that a Below the dew point, the corrosion damage to the Heat exchanger surfaces causes, as described, that Feed water through before entering the heat exchanger surfaces Steam turbine condensate cooled. This usually happens Waste heat boilers in which exhaust air from sintered cooling belts is cooled becomes. However, corrosion damage must be expected, so the temperature of the feed water must be before entering the Heat exchanger surfaces 22 of the waste heat boiler 23 approximately Temperature of the degasser 17 correspond.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Thermal Sciences (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)
  • Air Supply (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Degasification And Air Bubble Elimination (AREA)
  • Physical Water Treatments (AREA)
EP00126349A 2000-01-15 2000-12-02 Procédé et installation de production de vapeur Expired - Lifetime EP1116862B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10001512 2000-01-15
DE10001512A DE10001512A1 (de) 2000-01-15 2000-01-15 Verfahren zur Erzeugung von Dampf und eine Dampferzeugeranlage

Publications (3)

Publication Number Publication Date
EP1116862A2 true EP1116862A2 (fr) 2001-07-18
EP1116862A3 EP1116862A3 (fr) 2002-09-25
EP1116862B1 EP1116862B1 (fr) 2005-02-09

Family

ID=7627638

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00126349A Expired - Lifetime EP1116862B1 (fr) 2000-01-15 2000-12-02 Procédé et installation de production de vapeur

Country Status (4)

Country Link
EP (1) EP1116862B1 (fr)
AT (1) ATE288997T1 (fr)
DE (2) DE10001512A1 (fr)
ES (1) ES2235747T3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9604864B2 (en) 2013-03-12 2017-03-28 Ingenica Ingenierie Industrielle Steam generation method and method for recovering crude oil by steam-assisted gravity drainage (SAGD) including said steam generation method
US10054308B2 (en) 2014-09-11 2018-08-21 Ingenica Ingenierie Industrielle Method for generating steam from raw water, in particular from blow down water coming from a steam generator

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101294502B (zh) * 2007-04-23 2010-12-08 张庆玉 多功能真空火力水力双发电和提水调水站

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4327476A1 (de) * 1993-08-16 1995-02-23 Steinmueller Gmbh L & C Verfahren zum Betrieb eines mit fossilen Brennstoffen befeuerten Dampferzeugers und Dampferzeugungsanlage zur Durchführung des Verfahrens
DE29608816U1 (de) * 1996-05-15 1996-08-01 Deutsche Babcock Babcock Lentjes Kraftwerkstechnik GmbH Standort Berlin, 10407 Berlin Anordnung zur Nutzung der Abwärme von Zementklinkerlinien
DE19645322A1 (de) * 1996-11-04 1998-05-07 Asea Brown Boveri Kombinierte Kraftwerksanlage mit einem Zwangsdurchlaufdampferzeuger als Gasturbinen-Kühlluftkühler
JPH11325406A (ja) * 1998-05-07 1999-11-26 Ebara Corp 火力発電設備における給水加熱装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2243380C3 (de) * 1972-09-04 1978-07-20 Kraftwerk Union Ag, 4330 Muelheim Dampfkraftanlage mit rauchgasbeheiztem Speisewasservorwärmer und wasserbeheiztem Luftvorwärmer
DE3324283A1 (de) * 1983-07-06 1985-01-24 Kleinewefers Energie- und Umwelttechnik GmbH, 4150 Krefeld Sinterbandanlage mit einrichtung fuer die abhitzeverwertung

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4327476A1 (de) * 1993-08-16 1995-02-23 Steinmueller Gmbh L & C Verfahren zum Betrieb eines mit fossilen Brennstoffen befeuerten Dampferzeugers und Dampferzeugungsanlage zur Durchführung des Verfahrens
DE29608816U1 (de) * 1996-05-15 1996-08-01 Deutsche Babcock Babcock Lentjes Kraftwerkstechnik GmbH Standort Berlin, 10407 Berlin Anordnung zur Nutzung der Abwärme von Zementklinkerlinien
DE19645322A1 (de) * 1996-11-04 1998-05-07 Asea Brown Boveri Kombinierte Kraftwerksanlage mit einem Zwangsdurchlaufdampferzeuger als Gasturbinen-Kühlluftkühler
JPH11325406A (ja) * 1998-05-07 1999-11-26 Ebara Corp 火力発電設備における給水加熱装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 2000, no. 02, 29. Februar 2000 (2000-02-29) & JP 11 325406 A (EBARA CORP), 26. November 1999 (1999-11-26) *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9604864B2 (en) 2013-03-12 2017-03-28 Ingenica Ingenierie Industrielle Steam generation method and method for recovering crude oil by steam-assisted gravity drainage (SAGD) including said steam generation method
US10054308B2 (en) 2014-09-11 2018-08-21 Ingenica Ingenierie Industrielle Method for generating steam from raw water, in particular from blow down water coming from a steam generator

Also Published As

Publication number Publication date
EP1116862B1 (fr) 2005-02-09
EP1116862A3 (fr) 2002-09-25
DE50009474D1 (de) 2005-03-17
DE10001512A1 (de) 2001-07-19
ATE288997T1 (de) 2005-02-15
ES2235747T3 (es) 2005-07-16

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