EP1022440A2 - Dampfturbinenanlage - Google Patents
Dampfturbinenanlage Download PDFInfo
- Publication number
- EP1022440A2 EP1022440A2 EP00100593A EP00100593A EP1022440A2 EP 1022440 A2 EP1022440 A2 EP 1022440A2 EP 00100593 A EP00100593 A EP 00100593A EP 00100593 A EP00100593 A EP 00100593A EP 1022440 A2 EP1022440 A2 EP 1022440A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- steam
- steam turbine
- turbine
- generator
- 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.)
- Granted
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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
Definitions
- the invention relates to a steam turbine system a steam generator. It further relates to a process for Operation of such a system.
- a steam turbine plant is usually used for generation electrical energy or to drive a machine used. This is done in an evaporator circuit working medium guided in the steam turbine system, usually a water-steam mixture, evaporated in an evaporator. The steam generated thereby relaxes while performing work in the steam turbine and then becomes a condenser or fed to a work machine. That in the condenser Condensed working medium is then fed through a feed water pump fed back to the evaporator.
- D1 System for solar steam generation at least one medium pressure steam generator, its steam line to the medium pressure steam system of the steam turbine power plant is connected.
- the system for solar steam generation comprises at least a high pressure steam generator whose high pressure steam line to the high pressure superheater heating surfaces of the waste heat steam generator connected.
- the feed can of external steam from a device for generating external steam provided in the water-steam cycle of the steam turbine his.
- external steam is fed in from a facility for generating external steam in the water-steam cycle
- the steam turbine should have extraneous steam at the feed point parameters in the water-steam cycle, such as Temperature and pressure, which correspond to corresponding parameters are adjusted at this point in the water-steam cycle. That is why preheating is usually particularly complex to be fed into the water-steam cycle of the steam turbine Foreign steam provided. But that makes it fall desired increase in overall efficiency with the supply of external steam the steam turbine plant is comparatively low out.
- the invention is therefore based on the object of a steam turbine system of the type mentioned above, which in a Feeding of external steam into the water-steam cycle the steam turbine a particularly good adjustment of the steam parameters of extraneous steam to that of the water-steam cycle Steam turbine system guaranteed, and some has high overall efficiency.
- a procedure specified for operating such a steam turbine system with which a particularly high overall efficiency can be achieved is.
- This task is for a steam turbine plant of the above Kind solved according to the invention by the steam generator a separate preheating area and one in the water-steam cycle the superheater heating surface switched on the steam turbine having a steam inlet, the preheating surface on the input side with a device for generating external steam and on the outlet side with the steam inlet of the superheater heating surface connected is.
- the invention is based on the consideration that for one particularly high overall efficiency in the plant process Heat can be used to the greatest extent possible should. It should also heat the steam generator usually not coupled into the water-steam cycle is at least partially integrated into the plant process become. With residual heat from the steam generator, an additional Preheating in the water-steam cycle Steam turbine to be fed comparatively cold Extraneous steam take place. This is a feed-in of the now preheated extraneous steam in the steam inlet of a superheater heating surface of the steam generator possible, which is a comparatively has a high temperature value. To be a particularly good one It is necessary to ensure adaptation of the steam parameters the preheating of the external steam provided a separate heating surface.
- Extraneous steam shows steam parameters after preheating, a supply of the preheated external steam into an in the superheater heating surface switched by the water-steam cycle in such a way that the overall efficiency the steam turbine system is particularly high. So it happens a two-stage heating of the external steam before feeding in the steam turbine.
- the steam turbine advantageously has a high-pressure stage on, the steam outlet side with the steam inlet of the superheater heating surface connected is. This is overheating the preheated external steam together with the steam, that has passed the high pressure stage of the steam turbine. This is a particularly cheap in a simple manner Point for feeding the external steam into the water-steam cycle the steam turbine plant chosen, whereby the overall efficiency of the system increased particularly reliably becomes.
- the steam turbine system advantageously has a control device on which is the amount of the separate preheating surface incoming external steam depending on determined on the output side after the separate preheating surface Steam parameters. This makes one special ensures favorable utilization of the residual heat of the steam generator, because parameters that are particularly favorable for heat transfer, such as the temperature, are adjustable.
- Such a steam turbine system is advantageous Part of a gas and steam turbine plant, the steam generator is designed as a heat recovery steam generator.
- the flue gas side a waste heat steam generator downstream of a gas turbine has the preheating surface in the outlet area for the flue gas on, which in a particularly simple manner particularly favorable utilization of the residual steam from the waste heat steam generator is guaranteed.
- FIG. 1 An embodiment of the invention is based on a Drawing explained in more detail.
- the figure shows schematically a steam turbine plant that is part of a gas and steam turbine plant is.
- the gas and steam turbine plant shown schematically in the figure 2 comprises a gas turbine plant 2A and a Steam turbine plant 2B.
- the gas turbine plant 2A comprises one Gas turbine 4 with coupled air compressor 6.
- the air compressor 6 is connected on the inlet side to an intake air line 8.
- the gas turbine 4 is one for working medium AM provided supply line 10 upstream of a combustion chamber 12, to a fresh air line 14 of the air compressor 6 is connected.
- In the combustion chamber 12 of the gas turbine 4 opens a fuel line provided for fuel B. 16.
- the gas turbine 4 and the air compressor 6 and a generator 18 sit on a common shaft 20.
- the steam turbine system 2B also includes a steam turbine 22 coupled generator 24 and in a water-steam cycle 26 a capacitor downstream of the steam turbine 22 28 and one designed as a heat recovery steam generator Steam generator 30.
- the steam turbine 22 consists of a first one Pressure stage or a high pressure part 22A and a second Pressure stage or a medium pressure part 22B and one third pressure stage or a low pressure part 22C, which over a common shaft 32 drive the generator 24.
- an exhaust pipe 34 is connected to an input 30A of the steam generator 30.
- the relaxed working medium AM 'from the gas turbine 4 leaves the steam generator 30 via its outlet 30B towards a chimney, not shown.
- the steam generator 30 comprises in a first pressure stage or High pressure stage of the water-steam circuit 26 a high pressure preheater or economizer 36 attached to a water-steam drum 38 is connected.
- the water-steam drum 38 is with an evaporator heating surface arranged in the steam generator 30 40 connected to form a water-steam cycle 42.
- the high-pressure drum 38 is arranged on a in the steam generator 30 High pressure superheater 44 connected, the output side with the steam inlet 46 of the high pressure part 22A of the Steam turbine 22 is connected.
- the steam outlet 48 of the high pressure part 22A of the steam turbine 22 is one via a steam line 50 with the steam inlet 51 Superheater heating surface 52 connected.
- the output 54 of the superheater heating surface 52 is via a steam line 56 to the Steam inlet 58 of the medium pressure part 22B of the steam turbine 22 connected.
- Its steam outlet 60 is via an overflow line 62 with the steam inlet 64 of the low pressure part 22C the steam turbine 22 connected.
- the steam outlet 66 of the low pressure part 22C of the steam turbine 22 is via a steam line 68 connected to the capacitor 28. This is over a feed water line 70 into which a feed water pump 72 and a feed water tank 74 are connected to the economizer 36 connected so that a closed water-steam cycle 26 arises.
- Heating surfaces not shown arranged, the one medium or one low-pressure stage of the water-steam cycle 26 are assigned. These heating surfaces are suitably with the steam inlet 58 of the medium pressure part 22B of the steam turbine 22 or with the steam inlet 60 of the Low pressure part 22C of the steam turbine 22 connected.
- the steam turbine system 2B is for a particularly high one Overall efficiency of feeding in external steam F from a Device 80 is provided for generating external steam.
- the steam generator 30 has a separate preheating surface 82 on that in the vicinity of the outlet 30B of the steam generator 30 is arranged in the steam generator 30.
- the separate Preheating surface 82 is via a supply line 84, the input side in front of the preheating surface 82 with a valve 86 can be shut off with the device 80 for generating external steam connected.
- On the output side is the separate preheating surface 82 a steam line that can be shut off with a valve 88 90 connected, which opens into the steam line 50.
- the steam turbine system 2B has one Control device 100 on.
- the control device 100 is via a measurement line 102 with a number of sensors 104 connected, in a manner not shown on the output side after the separate preheating surface 82 steam parameters P of the preheated in the separate preheating surface 82 Determine extraneous steam F '.
- the control device 100 via a further measuring line 106 with a Sensor 108 connected, in a manner not shown on the input side in front of the separate preheating surface 82 Measurement of the amount supplied to the separate preheating surface 82 Foreign steam F is designed.
- Extraneous steam F is the control device 100 via a control line 110 with the front of the separate preheating surface 82 arranged valve 86 of the feed line 84 connected for external steam F.
- the one in the steam generator 30 preheated extraneous steam F 'then reaches the output side after the separate preheating surface 82 on the Steam line 90 into steam line 50 entering the steam inlet 51 of the superheater heating surface 52 opens.
- the superheated steam then arrives via the steam line 56 into the medium pressure stage 22B of the Steam turbine 22.
- control device 100 In order to use the residual heat of the To achieve steam generator 30 controls the control device 100 the amount of the supplied to the separate preheating surface 82 Foreign steam F depending on the output side after the separate preheating surface 82 via the sensors 104 determined steam parameters P. To do this, the control device measures 100 via the sensor 108 the amount of the separate Preheating surface 82 supplied external steam F. Depending from the steam parameters determined by the sensors 104 P then the control device 100 leads an opening or partial closure of the valve 86.
- the preheating and overheating of the external steam F ensures that in the water-steam cycle 26 of the steam turbine system 2B external steam F fed a particularly high Increases the overall efficiency of the system.
- a control device 100 is provided, which a particularly favorable utilization of the residual heat of the steam generator 30 causes.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
- Control Of Turbines (AREA)
Abstract
Description
Claims (6)
- Dampfturbinenanlage (2B) mit einem Dampferzeuger (30), der eine separate Vorwärmheizfläche (82) sowie eine in den Wasser-Dampf-Kreislauf (26) einer Dampfturbine (22) geschaltete Überhitzerheizfläche (52) mit einem Dampfeinlaß (51) aufweist, wobei die Vorwärmheizfläche (82) eingangsseitig mit einer Einrichtung (80) zur Fremddampferzeugung und ausgangsseitig mit dem Dampfeinlaß (51) der Überhitzerheizfläche (52) verbunden ist.
- Dampfturbinenanlage (2B) nach Anspruch 1,
bei der die Dampfturbine (22) eine Hochdruckstufe (22A) aufweist, die dampfausgangsseitig mit dem Dampfeinlaß (51) der Überhitzerheizfläche (52) verbunden ist. - Dampfturbinenanlage (2B) nach Anspruch 2
mit einer Regelungseinrichtung (100), die die Menge des der separaten Vorwärmheizfläche (82) zuströmenden Fremddampfs (F) in Abhängigkeit von ausgangsseitig nach der separaten Vorwärmheizfläche (82) ermittelten Dampfparametern (P) einstellt. - Dampfturbinenanlage (2B) nach einem der Ansprüche 1 bis 3, wobei der Dampferzeuger (30) als Abhitzedampferzeuger (30) ausgebildet und rauchgasseitig einer in einer Gas- und Dampfturbinenanlage (2) angeordneten Gasturbine (4) nachgeschaltet ist.
- Verfahren zum Betreiben einer Dampfturbinenanlage (2B) mit einem Dampferzeuger (30), der eine in einen Wasser-Dampf-Kreislauf (26) einer Dampfturbine (22) geschaltete Überhitzerheizfläche (52) aufweist, wobei Fremddampf (F) aus einer Einrichtung (80) zur Fremddampferzeugung einer im Dampferzeuger (30) angeordneten separaten Vorwärmheizfläche (82) zugeführt wird, und wobei der in der separaten Vorwärmheizfläche (82) erwärmte Fremddampf (F') dampfeingangsseitig in die Überhitzerheizfläche (52) eingespeist wird.
- Verfahren nach Anspruch 5,
bei dem die Dampfparameter (P) Druck und Temperatur ausgangsseitig nach der Vorwärmheizfläche (82) ermittelt werden, anhand derer die in die separate Vorwärmheizfläche (82) einzubringende Menge an Fremddampf (F) eingestellt wird.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1999102810 DE19902810C1 (de) | 1999-01-25 | 1999-01-25 | Dampfturbinenanlage |
DE19902810 | 1999-01-25 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1022440A2 true EP1022440A2 (de) | 2000-07-26 |
EP1022440A3 EP1022440A3 (de) | 2002-08-07 |
EP1022440B1 EP1022440B1 (de) | 2005-11-23 |
Family
ID=7895290
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20000100593 Expired - Lifetime EP1022440B1 (de) | 1999-01-25 | 2000-01-12 | Dampfturbinenanlage |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1022440B1 (de) |
DE (2) | DE19902810C1 (de) |
ES (1) | ES2253145T3 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012095243A1 (de) * | 2011-01-12 | 2012-07-19 | Martin Hadlauer | Gas/dampfturbinenanlage für solare anbindung |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4126037A1 (de) | 1991-08-06 | 1993-02-11 | Siemens Ag | Gas- und dampfturbinenkraftwerk mit einem solar beheizten dampferzeuger |
DE4126038A1 (de) | 1991-08-06 | 1993-02-11 | Siemens Ag | Gas- und dampfturbinenkraftwerk mit einem solarbeheizten dampferzeuger |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2131347A1 (de) * | 1971-06-24 | 1972-12-28 | Kraftwerk Union Ag | Dampfkraftanlage |
DE4300192C2 (de) * | 1993-01-07 | 2002-08-01 | Abb Patent Gmbh | Verfahren zum Betrieb von mindestens zwei miteinander verknüpften Abhitzeprozessen und Dampferzeugungsanlage zur Durchführung des Verfahrens |
-
1999
- 1999-01-25 DE DE1999102810 patent/DE19902810C1/de not_active Expired - Fee Related
-
2000
- 2000-01-12 DE DE50011665T patent/DE50011665D1/de not_active Expired - Lifetime
- 2000-01-12 EP EP20000100593 patent/EP1022440B1/de not_active Expired - Lifetime
- 2000-01-12 ES ES00100593T patent/ES2253145T3/es not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4126037A1 (de) | 1991-08-06 | 1993-02-11 | Siemens Ag | Gas- und dampfturbinenkraftwerk mit einem solar beheizten dampferzeuger |
DE4126038A1 (de) | 1991-08-06 | 1993-02-11 | Siemens Ag | Gas- und dampfturbinenkraftwerk mit einem solarbeheizten dampferzeuger |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012095243A1 (de) * | 2011-01-12 | 2012-07-19 | Martin Hadlauer | Gas/dampfturbinenanlage für solare anbindung |
Also Published As
Publication number | Publication date |
---|---|
EP1022440B1 (de) | 2005-11-23 |
ES2253145T3 (es) | 2006-06-01 |
DE50011665D1 (de) | 2005-12-29 |
EP1022440A3 (de) | 2002-08-07 |
DE19902810C1 (de) | 2000-05-25 |
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