EP1130314A2 - Générateur de vapeur à haute pression - Google Patents

Générateur de vapeur à haute pression Download PDF

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Publication number
EP1130314A2
EP1130314A2 EP01102302A EP01102302A EP1130314A2 EP 1130314 A2 EP1130314 A2 EP 1130314A2 EP 01102302 A EP01102302 A EP 01102302A EP 01102302 A EP01102302 A EP 01102302A EP 1130314 A2 EP1130314 A2 EP 1130314A2
Authority
EP
European Patent Office
Prior art keywords
steam generator
pressure steam
pressure
flue gas
reheater
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
EP01102302A
Other languages
German (de)
English (en)
Other versions
EP1130314B1 (fr
EP1130314A3 (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
MAN Turbo GmbH
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, MAN Turbo GmbH filed Critical MAN Turbomaschinen AG
Publication of EP1130314A2 publication Critical patent/EP1130314A2/fr
Publication of EP1130314A3 publication Critical patent/EP1130314A3/fr
Application granted granted Critical
Publication of EP1130314B1 publication Critical patent/EP1130314B1/fr
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
    • F22G—SUPERHEATING OF STEAM
    • F22G1/00—Steam superheating characterised by heating method
    • F22G1/16—Steam superheating characterised by heating method by using a separate heat source independent from heat supply of the steam boiler, e.g. by electricity, by auxiliary combustion of fuel oil

Definitions

  • the invention relates to a high pressure steam generator with a consisting of high pressure part and medium or low pressure part Steam turbine set with the features of the preamble of Claim 1.
  • Such high pressure steam generators can be used to Example to efficiently generate electricity from cottage gases, which has always been a decisive economic factor in metallurgical power plants is.
  • simple, but higher quality ones were used Circular processes with high steam parameters and more regenerative Fresh water preheating installed or retrofitted. This had the consequence that partly new modern Metallurgical gas steam generator with integrated, environmentally friendly Firing the steam parameters of the existing older industrial steam turbines have been adjusted.
  • the invention has for its object the generic To design high pressure steam generator so that a Efficiency increase through the use of a reheater is possible without having to convert any of the existing ones existing high pressure steam generator are necessary.
  • the concept of the reheater circuit according to the invention can be combined with other conventional power plants Fuels as metallurgical gases as well as on combined gas-steam power plants apply. In the latter case, there are Reheater solutions with additional evaporator and Additional firing, for example with top gas or unfired Heat recovery systems.
  • the reheater in a separate flue gas duct can High pressure steam generator exist in its existing form stay.
  • High pressure part and the medium or low pressure part of the Steam turbine set each via a clutch with a Generator connected, so in the event of a malfunction or need High pressure parts and the medium or low pressure parts from High pressure steam generator and steam turbine set independent operated from each other. Further advantages of the invention are used in connection with the explanation of the Called embodiment.
  • FIG. 1 An embodiment of the invention is in the drawing shown and is explained in more detail below.
  • the drawing shows the circuit diagram of a high pressure steam generator with one Reheater.
  • a preferably arranged in a steel mill and with Blast furnace gas heated high pressure steam generator 1 is with a Provide superheater 2.
  • One at the superheater 2 subsequent high-pressure steam line 3 is to the high-pressure part 4 of a steam turbine set.
  • the evaporation outlet of the High-pressure part 4 is connected to a via a connecting line 5 Reheater 6.
  • the reheater 6 is on the outlet side via a Intermediate steam line 7 with the medium or low pressure part 8 of the steam turbine set connected.
  • the evaporation outlet of the Medium or low pressure part 8 is a condenser 9 guided.
  • a condensate line 10 is connected to the condenser 9 connected, in which a condensate pump 11 is located.
  • the Condensate line 10 is via a water / water heat exchanger 12 led to a thermal feedwater degasser 13, the via a bleed line 14 with bleed steam from the middle or Low pressure part 8 of the steam turbine set is heated.
  • To the Feedwater degasser 13 closes a feedwater line 15 on, which is guided through the water / water heat exchanger 12 and in which a booster pump 16 is arranged.
  • the Feed water line 15 opens into one High pressure feed water preheater 17, the outlet with the High-pressure steam generator 1 is connected. To that extent High-pressure steam generator 1 known.
  • the reheater 6 is in one of those High-pressure steam generator 1 arranged separate flue gas duct 18, which connects to a combustion chamber 19.
  • the combustion chamber 19 is provided with a burner 20, which is operated with top gas becomes.
  • the combustion chamber 19 is one with refractory bricks bricked combustion muffle trained and provides a adiabatic chamber. By the reflection of the hot Walls of the combustion muffle becomes a self-sustaining combustion of the top gas. Can therefore use natural gas as a support fire even with fluctuations in the calorific value of the blast furnace gas in continuous operation to be dispensed with. Only in start-up mode to heat the Bricks of the combustion chamber 19 up to the operating temperature becomes natural gas needed.
  • the Flue gases behind the reheater 6 the one already mentioned High pressure feed water preheater 17 arranged. In this way can be used for regenerative feed water preheating Tap steam of the steam turbine set can be dispensed with. It is so that only the thermal feedwater degasser 13 leading steam tapping necessary.
  • a condensate preheater 22 in the flue gas duct 18 be installed.
  • Flue gas recirculation line 23 branches into the Combustion chamber 19 opens out.
  • fan 24 removes from the flue gas duct 18 regulates flue gas and blows it into the combustion chamber 19.
  • the temperature of the degas feed water by exchanging heat with the returned, colder condensate reduced. This will both the degree on the heating surfaces of the High-pressure feed water preheater 17 and the flue gas side Heat exchange increased.
  • the reheater 6 consists of two Reheater stages 6.1, 6.2. Before entering the first Reheater stage 6.1 is in the connecting line 5 Steam conversion valve 25 is provided. This steam conversion valve 25 is only engaged when the high pressure part 4 of the steam turbine set faults occur and for example a Quick close. Between the two Intermediate superheater stages 6.1, 6.2 is an injection cooler 26 arranged. The regulation of the outlet temperature of the Intermediate steam takes place via the combustion of the combustion chamber 19. The injector cooler 26 holds for changes in load Steam turbine permissible temperatures.
  • the advantage of this Regulation lies in the load-independent constancy of the Outlet temperature of the intermediate steam without change on the Injection water side in contrast to conventional Steam generators with reheating. A reduction in electrical efficiency through higher injection water quantities on the reheater side is therefore the one above described procedures not given.
  • the evaporation outlet of the high pressure part 4 of the Steam turbine set is bypassed via a branch line 27 the reheater 6 directly with the steam entry of the Medium or low pressure part 8 of the steam turbine set connected.
  • a line 28 extending from this branch line 27 is bypassing the medium or low pressure part 8 to the Condenser 9 out.
  • the evaporation outlet of the High-pressure part 4 via a steam conversion valve 29 provided line 30 connected to the feedwater degasser 13.
  • a generator 31 is connected downstream of the steam turbine set.
  • This generator 31 is a common generator each a coupling designed as a quick coupling 32, 33 with the High pressure part 4 and the medium or low pressure part 8 of the Steam turbine set connected.
  • the housing can be designed of the two steam turbine stages with an axial outflow be carried out. In conjunction with the previously described Circuit is thus a decoupling of the two in operational terms Steam turbine stages possible.
  • the high pressure part and the middle or Low pressure part of the high pressure steam generator 1 and Steam turbine set can therefore in the event of malfunction and need operated independently of each other.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Engine Equipment That Uses Special Cycles (AREA)
EP01102302A 2000-02-29 2001-02-01 Générateur de vapeur à haute pression Expired - Lifetime EP1130314B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10009454A DE10009454A1 (de) 2000-02-29 2000-02-29 Hochdruckdampferzeuger
DE10009454 2000-02-29

Publications (3)

Publication Number Publication Date
EP1130314A2 true EP1130314A2 (fr) 2001-09-05
EP1130314A3 EP1130314A3 (fr) 2002-12-11
EP1130314B1 EP1130314B1 (fr) 2005-06-08

Family

ID=7632779

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01102302A Expired - Lifetime EP1130314B1 (fr) 2000-02-29 2001-02-01 Générateur de vapeur à haute pression

Country Status (4)

Country Link
EP (1) EP1130314B1 (fr)
AT (1) ATE297528T1 (fr)
DE (2) DE10009454A1 (fr)
ES (1) ES2242663T3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008139205A3 (fr) * 2007-05-16 2009-01-08 Otter Controls Ltd Appareils électriques

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010050090A1 (de) * 2010-10-29 2012-05-03 Linde Aktiengesellschaft Dampfsystem

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB721276A (en) * 1951-06-18 1955-01-05 Fairfield Shipbuilding And Eng Improvements in marine steam turbine propulsion installations
CH323723A (de) * 1954-02-27 1957-08-15 Sulzer Ag Verfahren zum Anfahren einer mit Zwangdurchlauf betriebenen Dampfkraftanlage
DE971815C (de) * 1953-10-31 1959-04-02 Sulzer Ag Verfahren zum Betrieb einer Dampfkraftanlage bei voruebergehender Abschaltung des Generators vom Netz und Dempfkraftanlage zur Ausfuehrung dieses Verfahrens
GB839669A (en) * 1957-04-08 1960-06-29 Foster Wheeler Ltd Improvements in the generation of steam power
DE1120061B (de) * 1955-03-25 1961-12-21 Babcock & Wilcox Dampfkessel Strahlungsdampferzeuger mit mehreren muffelartigen Brennraeumen
FR1371934A (fr) * 1963-07-24 1964-09-11 Alsthom Cgee Perfectionnement aux installations à cycle mixte gaz-vapeur, en vue de réduire lescorrosions et tensions dans les surchauffeurs
FR1426434A (fr) * 1964-01-15 1966-01-28 Foster Wheeler Corp Réchauffeur séparateur
DE1551270A1 (de) * 1965-12-29 1969-07-03 Steinkohlen Elek Zitaet Ag Verbundkraftwerk aus Kernkraftwerk mit nachgeschaltetem fossilem UEberhitzer
US4027145A (en) * 1973-08-15 1977-05-31 John P. McDonald Advanced control system for power generation

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH321251A (de) * 1954-05-11 1957-04-30 Escher Wyss Ag Regeleinrichtung an einer Dampfturbinengruppe mit Zwischenüberhitzung des Arbeitsdampfes
NL227073A (fr) * 1958-03-12
DE19749452C2 (de) * 1997-11-10 2001-03-15 Siemens Ag Dampfkraftanlage

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB721276A (en) * 1951-06-18 1955-01-05 Fairfield Shipbuilding And Eng Improvements in marine steam turbine propulsion installations
DE971815C (de) * 1953-10-31 1959-04-02 Sulzer Ag Verfahren zum Betrieb einer Dampfkraftanlage bei voruebergehender Abschaltung des Generators vom Netz und Dempfkraftanlage zur Ausfuehrung dieses Verfahrens
CH323723A (de) * 1954-02-27 1957-08-15 Sulzer Ag Verfahren zum Anfahren einer mit Zwangdurchlauf betriebenen Dampfkraftanlage
DE1120061B (de) * 1955-03-25 1961-12-21 Babcock & Wilcox Dampfkessel Strahlungsdampferzeuger mit mehreren muffelartigen Brennraeumen
GB839669A (en) * 1957-04-08 1960-06-29 Foster Wheeler Ltd Improvements in the generation of steam power
FR1371934A (fr) * 1963-07-24 1964-09-11 Alsthom Cgee Perfectionnement aux installations à cycle mixte gaz-vapeur, en vue de réduire lescorrosions et tensions dans les surchauffeurs
FR1426434A (fr) * 1964-01-15 1966-01-28 Foster Wheeler Corp Réchauffeur séparateur
DE1551270A1 (de) * 1965-12-29 1969-07-03 Steinkohlen Elek Zitaet Ag Verbundkraftwerk aus Kernkraftwerk mit nachgeschaltetem fossilem UEberhitzer
US4027145A (en) * 1973-08-15 1977-05-31 John P. McDonald Advanced control system for power generation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008139205A3 (fr) * 2007-05-16 2009-01-08 Otter Controls Ltd Appareils électriques

Also Published As

Publication number Publication date
DE10009454A1 (de) 2001-08-30
ATE297528T1 (de) 2005-06-15
EP1130314B1 (fr) 2005-06-08
EP1130314A3 (fr) 2002-12-11
DE50106421D1 (de) 2005-07-14
ES2242663T3 (es) 2005-11-16

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