EP1130314B1 - Hochdruckdampferzeuger - Google Patents
Hochdruckdampferzeuger Download PDFInfo
- Publication number
- EP1130314B1 EP1130314B1 EP01102302A EP01102302A EP1130314B1 EP 1130314 B1 EP1130314 B1 EP 1130314B1 EP 01102302 A EP01102302 A EP 01102302A EP 01102302 A EP01102302 A EP 01102302A EP 1130314 B1 EP1130314 B1 EP 1130314B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pressure
- steam generator
- pressure steam
- flue gas
- steam
- 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.)
- Expired - Lifetime
Links
Images
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 serve to For example, to efficiently incinerate metallurgical gases, which has always been a been decisive economic factor in metallurgical plants is. As a rule, these were simple but higher quality Circular processes with high steam parameters and regenerative Feedwater preheating newly installed or retrofitted. This As a result, some new modern Metallurgical steam generator with integrated, environmentally friendly Firing the steam parameters of existing older industrial steam turbines were adjusted.
- reheaters In the course of efficiency increases and CO 2 reduction potentials, solutions with a reheater can be used in industrial metallurgical plants with reuse of existing high-pressure steam generators.
- the use of reheaters represents a known and proven technology for increasing the electrical efficiency in the steam process.
- the heating surfaces of reheaters are integrated as a medium-pressure part in the high-pressure steam generator, the two steam turbine stages are arranged on a common shaft.
- the high-pressure part and the middle or low-pressure part of the high-pressure steam generator and the steam turbine set are therefore operationally strongly linked with each other.
- a high pressure steam generator is known, the one with a high pressure part and low pressure part existing Steam turbine set is coupled, in turn, with a common generator is connected.
- the steam generator contains a double combustion chamber with two combustion chambers, designed by as High-pressure evaporator trained pipe walls enclosed and are linked together on the firing side.
- the one combustion chamber takes two superheaters, and the other combustion chamber takes a reheater over which the high pressure part and the Low pressure part of the steam turbine set connected together are.
- From DE 971 815 C is a high pressure steam generator with two Combustion chambers are known, which are interconnected at the outlet end are.
- Each of the combustion chambers takes an evaporator, one Superheater and a high pressure or low pressure reheater on.
- In the flow direction of the flue gases behind the superheaters is in the two combustion chambers common area arranged a feedwater heater.
- FR-A-1 371 934 shows a pressure-charged steam generator with two fire chambers. In each of the fire chambers is a level a two-stage superheater arranged.
- the invention is based on the object, the generic Make high-pressure steam generator such that a Efficiency increase through the use of a reheater becomes possible, without that conversion measures at one already existing high-pressure steam generator are necessary.
- the inventive concept of the reheater circuit can be used on both conventional power plants with others Fuels as metallurgical gases as well as on combined gas-steam power plants apply. In the latter case offer themselves Reheater solutions with additional evaporator and Additional firing for example with top gas or unfired Heat-up systems on.
- High-pressure steam generator Due to the arrangement of the efficiency increasing Reheater in a separate flue can the High-pressure steam generator exist in its existing form stay.
- High pressure part and the middle or low pressure part of Steam turbine set each via a coupling with a Generator connected, so in case of disturbance or need the High pressure parts and the medium or low pressure parts of High pressure steam generator and steam turbine set independently operated by each other. Further advantages of the invention be related to the explanation of the Called embodiment.
- the drawing shows the diagram of a high-pressure steam generator with a Reheaters.
- a preferably arranged in a metallurgical plant and with Top gas heated high-pressure steam generator 1 is provided with a Overheater 2 provided.
- One at the superheater 2 subsequent high pressure steam line 3 is to the high pressure part.
- 4 a steam turbine set out.
- the Abdampfaustritt of High-pressure part 4 is connected via a connecting line 5 with a Reheater 6.
- the reheater 6 is on the outlet side via a Intermediate steam line 7 with the middle or low pressure part. 8 connected to the steam turbine set.
- the Abdampfaustritt of Middle or low pressure part 8 is to a capacitor. 9 guided.
- To the condenser 9 is a condensate line 10th 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 tap 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 is followed by a feedwater line 15, which is guided by the water / water heat exchanger 12 and in which a booster pump 16 is arranged.
- the Feedwater line 15 opens into a High-pressure feedwater pre-heater 17 a, whose outlet with the High-pressure steam generator 1 is connected. In that regard, the High-pressure steam generator 1 known.
- the reheater 6 is in one of the High pressure steam generator 1 separate flue gas duct 18 arranged which connects to a combustion chamber 19.
- the combustion chamber 19 is provided with a burner 20, which operated with blast furnace gas becomes.
- the combustion chamber 19 is considered to be one with refractory bricks bricked combustion muffle is formed and provides a Adiabatic chamber dar. By the reflection of the hot Walls of the combustion muffle become a self-contained combustion of the top gas allows. On natural gas as a support fire can therefore even with calorific value fluctuations of the top gas in continuous operation be waived. Only in the starting mode for heating the Stones of the combustion chamber 19 up to operating temperature becomes natural gas needed.
- an air preheater 21 for providing preheated Combustion air for the burner 20 of the combustion chamber 19th arranged.
- a condensate preheater 22nd be installed.
- Flue gas recirculation line 23 is branched off, in the Combustion chamber 19 opens.
- fan 24 removes from the flue gas channel 18th regulated flue gas and blows it into the combustion chamber 19.
- 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 a Steam reforming valve 25 is provided. This steam reforming valve 25 is only engaged when at the high pressure part. 4 the steam turbine set disturbances occur and, for example, a Quick closing occurs. Between the two Reheater 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 firing of the combustion chamber 19. In this case, the injection cooler 26 holds the load changes for the Steam turbine allowable temperatures. The advantage of this Regulation is in the load independent constancy of Outlet temperature of the intermediate steam without change on the Injection water side in contrast to conventional Steam generators with reheat. A reduction of the electrical efficiency through higher injection water volumes on the reheater side is therefore at the top described method not given.
- the Abdampfausberg of the high pressure part 4 of Steam turbine set is bypassed via a branch line 27 the reheater 6 directly to the steam inlet of the Middle or low pressure part 8 of the steam turbine set connected.
- One of this branch line 27 outgoing line 28th is bypassing the middle or low pressure part 8 to the Condenser 9 out.
- the Abdampfausberg of High-pressure part 4 via a with a steam reforming valve 29th provided line 30 connected to the feedwater degasser 13.
- the steam turbine set is followed by a generator 31.
- This generator 31 is as a common generator via each designed as a quick coupling coupling 32, 33 with the High pressure part 4 and the middle or low pressure part 8 of the Steam turbine set connected.
- the housing can be constructive the two steam turbine stages single-flow with axial outflow be executed.
- In conjunction with the previously described Circuit is characterized operational decoupling of the two Steam turbine stages possible.
- the high-pressure part and the middle or low pressure part of the high-pressure steam generator 1 and the Steam turbine sets can therefore in case of disturbance 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)
Description
Claims (8)
- Hochdruckdampferzeuger mit einem aus Hochdruckteil (4) und Mittel- oder Niederdruckteil (8) bestehenden Dampfturbinensatz, wobei der Hochdruckteil (4) und der Mittel- oder Niederdruckteil (8) über einen Zwischenüberhitzer-Kreislauf miteinander verbunden sind, dadurch gekennzeichnet, dass der Zwischenüberhitzer (6) in einem von dem Hochdruckdampferzeuger (1) getrennten, direkt beheizten Rauchgaskanal (18) angeordnet ist.
- Hochdruckdampferzeuger nach Anspruch 1, dadurch gekennzeichnet, dass der Hochdruckteil (4) und der Mittel- oder Niederdruckteil (8) des Dampfturbinensatzes jeweils über eine Kupplung (32, 33) mit einem gemeinsamen Generator (31) verbunden sind.
- Hochdruckdampferzeuger nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Rauchgaskanal (18) an eine Brennkammer (19) angeschlossen ist, die als eine mit feuerfesten Steinen ausgemauerte Verbrennungsmuffel ausgebildet ist.
- Hochdruckdampferzeuger nach Anspruch 3, dadurch gekennzeichnet, dass die Brennkammer (19) mit Gichtgas befeuert ist.
- Hochdruckdampferzeuger nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass der Zwischenüberhitzer (6) aus zwei Zwischenüberhitzerstufen (6.1, 6.2) besteht, zwischen denen ein Einspritzkühler (26) angeordnet ist.
- Hochdruckdampferzeuger nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass in dem Rauchgaskanal (18) in Strömungsrichtung der Rauchgase hinter dem Zwischenüberhitzer (6) ein zu dem Hochdruckdampferzeuger (1) gehörender Hochdruckspeisewasservorwärmer (17) angeordnet ist.
- Hochdruckdampferzeuger nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass in dem Rauchgaskanal (18) in Strömungsrichtung der Rauchgase hinter dem Hochdruckspeisewasservorwärmer (17) des Hochdruckdampferzeugers (1) ein Luftvorwärmer (21) zur Vorwärmung der Verbrennungsluft für die Brennkammer (19) angeordnet ist.
- Hochdruckdampferzeuger nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass von dem Rauchgaskanal (18) eine Rauchgasrückführungsleitung (23) zu der Brennkammer (19) geführt ist.
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 EP1130314A2 (de) | 2001-09-05 |
EP1130314A3 EP1130314A3 (de) | 2002-12-11 |
EP1130314B1 true EP1130314B1 (de) | 2005-06-08 |
Family
ID=7632779
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01102302A Expired - Lifetime EP1130314B1 (de) | 2000-02-29 | 2001-02-01 | Hochdruckdampferzeuger |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1130314B1 (de) |
AT (1) | ATE297528T1 (de) |
DE (2) | DE10009454A1 (de) |
ES (1) | ES2242663T3 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB0722934D0 (en) * | 2007-05-16 | 2008-01-02 | Otter Controls Ltd | Electrical appliances |
DE102010050090A1 (de) * | 2010-10-29 | 2012-05-03 | Linde Aktiengesellschaft | Dampfsystem |
Family Cites Families (12)
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 |
CH321251A (de) * | 1954-05-11 | 1957-04-30 | Escher Wyss Ag | Regeleinrichtung an einer Dampfturbinengruppe mit Zwischenüberhitzung des Arbeitsdampfes |
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 |
NL105653C (de) * | 1958-03-12 | |||
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 |
DE1551270B2 (de) * | 1965-12-29 | 1971-09-09 | Steinkohlen Elektrizität AG, 4300 Essen | Verbundkraftwerk |
US4027145A (en) * | 1973-08-15 | 1977-05-31 | John P. McDonald | Advanced control system for power generation |
DE19749452C2 (de) * | 1997-11-10 | 2001-03-15 | Siemens Ag | Dampfkraftanlage |
-
2000
- 2000-02-29 DE DE10009454A patent/DE10009454A1/de not_active Withdrawn
-
2001
- 2001-02-01 DE DE50106421T patent/DE50106421D1/de not_active Expired - Lifetime
- 2001-02-01 ES ES01102302T patent/ES2242663T3/es not_active Expired - Lifetime
- 2001-02-01 EP EP01102302A patent/EP1130314B1/de not_active Expired - Lifetime
- 2001-02-01 AT AT01102302T patent/ATE297528T1/de active
Also Published As
Publication number | Publication date |
---|---|
DE50106421D1 (de) | 2005-07-14 |
EP1130314A3 (de) | 2002-12-11 |
EP1130314A2 (de) | 2001-09-05 |
ES2242663T3 (es) | 2005-11-16 |
DE10009454A1 (de) | 2001-08-30 |
ATE297528T1 (de) | 2005-06-15 |
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