EP1022440B1 - Dampfturbinenanlage - Google Patents
Dampfturbinenanlage Download PDFInfo
- Publication number
- EP1022440B1 EP1022440B1 EP20000100593 EP00100593A EP1022440B1 EP 1022440 B1 EP1022440 B1 EP 1022440B1 EP 20000100593 EP20000100593 EP 20000100593 EP 00100593 A EP00100593 A EP 00100593A EP 1022440 B1 EP1022440 B1 EP 1022440B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- steam
- heating surface
- water
- steam turbine
- generator
- 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
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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 plant a steam generator. It further relates to a method for Operating such a system.
- a steam turbine plant is usually used for generation electrical energy or to drive a work machine used. This is one in an evaporator circuit the steam turbine plant guided working medium, usually a water-vapor mixture, evaporated in an evaporator. The steam generated thereby relaxes work in the steam turbine and then a condenser or a work machine supplied. That in the condenser condensed working fluid is then passed through a feed water pump fed again to the evaporator.
- DE 41 26 037 A1 and DE 41 26 038 A1 is respectively a combined cycle power plant with a solar heated Steam generator known, in each case the plant to the solar Steam generation at the feedwater supply of the steam turbine power plant connected.
- the Plant for solar steam generation at least one medium-pressure steam generator, its steam line to the medium-pressure steam system the steam turbine power plant is connected.
- the plant for solar steam generation comprises at least a high pressure steam generator whose high pressure steam line to the Hochdrucküberhitzersammlung inhabit the heat recovery steam generator connected.
- the Injection of external steam from a device for Foreign steam generation in the water-steam cycle of Steam turbine be provided.
- the steam turbine should the foreign steam at the feed point in the water-steam cycle parameters, such as Temperature and pressure, which correspond to corresponding parameters are adapted in the water-steam cycle at this point. That is why usually a particularly expensive preheating of the fed into the water-steam cycle of the steam turbine Provided foreign steam. As a result, but the falls with the external steam injection desired increase in overall efficiency the steam turbine plant comparatively low out.
- the invention is therefore based on the object, a steam turbine plant of the abovementioned type to be used in a Injection of foreign steam into the water-steam cycle the steam turbine is a particularly good adaptation of the steam parameters the external steam to the water-steam cycle of the Steam turbine plant ensures, and one especially high overall efficiency.
- a procedure indicated for operating such a steam turbine plant be achieved, with a particularly high overall efficiency is.
- This task is for a steam turbine plant of the above Art solved according to the invention by the steam generator a separate preheating and one in the water-steam cycle the steam turbine switched superheater heating having a steam inlet, wherein the preheat heating surface on the input side with a device for generating foreign steam and on the output side with the steam inlet of the superheater heating surface connected is.
- the invention is based on the consideration that for a particularly high overall efficiency in the plant process incurred Heat can be harnessed to the maximum extent possible should. It should also heat the steam generator, the usually not coupled into the water-steam cycle is at least partially integrated into the plant process become. With residual heat of the steam generator can be an additional Preheating by in the water-steam cycle of Steam turbine fed comparatively cold Foreign steam done. This is an infeed of the now preheated extraneous steam into the steam inlet of a superheater heating surface the steam generator possible, the one comparatively high temperature value. To be a particularly good To ensure adaptation of the steam parameters thereby, is for the preheating of the external steam provided a separate heating surface.
- the steam turbine has a high-pressure stage on, the steam outlet side with the steam inlet of the superheater heating surface connected is. This is an overheating the preheated extraneous steam together with the steam, which has passed the high-pressure stage of the steam turbine guaranteed.
- This is in a simple way a particularly favorable Location for the supply of external steam in the water-steam cycle the steam turbine plant selected, thereby the overall efficiency of the plant is increased particularly reliably becomes.
- the steam turbine plant advantageously has a control device on top of that the amount of the separate preheat heating surface inflowing extraneous steam as a function of on the output side after the separate preheat heating determined Steam parameters sets. This is a special ensures favorable utilization of the residual heat of the steam generator, because for the heat transfer particularly favorable parameters, such as the temperature, are adjustable.
- the steam generator is designed as a heat recovery steam generator.
- the flue gas side a gas turbine downstream heat recovery steam generator has in the exit area for the flue gas Voriserrm carving configuration on, which in a particularly simple way a particularly favorable utilization of the residual steam of the heat recovery steam generator is guaranteed.
- the advantages achieved by the invention are in particular in that by using the residual heat of the steam generator this heat for the plant process of the steam turbine plant is made usable. This is true even if this Form of residual heat utilization on a gas and steam turbine plant is transmitted.
- FIG. 1 shows schematically a steam turbine plant, which is part of a gas and steam turbine plant is.
- the gas and steam turbine system shown schematically in the figure 2 includes a gas turbine plant 2A and a Steam turbine plant 2B.
- the gas turbine plant 2A comprises a Gas turbine 4 with coupled air compressor 6.
- the air compressor 6 is connected on the input side to an intake air line 8.
- the gas turbine 4 is one for working medium AM provided supply line 10 a combustion chamber 12 upstream, 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 planned for fuel B fuel line 16.
- the gas turbine 4 and the air compressor 6 and a generator 18 sit on a common shaft 20th
- the steam turbine plant 2B comprises a steam turbine 22 with coupled generator 24 and in a water-steam cycle 26 a steam turbine 22 downstream capacitor 28 and designed as a heat recovery steam generator Steam generator 30.
- the steam turbine 22 consists of a first Pressure stage or a high pressure part 22A and a second Compression or a medium-pressure part 22B and a third pressure stage or a low pressure part 22C, over a common shaft 32 driving the generator 24.
- the steam generator 30 comprises in a first pressure stage or High-pressure stage of the water-steam cycle 26 a high-pressure preheater or economizer 36 connected 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 circulation 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 Steam turbine 22 is connected.
- the steam outlet 48 of the high-pressure part 22A of the steam turbine 22 is a steam line 50 with the steam inlet 51 a 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 22 B of the steam turbine 22nd 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 one is over a feedwater line 70 into which a feedwater pump 72 and a feed water tank 74 are connected to the economizer 36 connected so that a closed water-steam cycle 26 is created.
- heating surfaces arranged, the each of a middle or a 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 generator 30 has a separate preheating heating surface 82 on, in the vicinity of the output 30B of the steam generator 30 is arranged in the steam generator 30.
- the separate Preheating heating surface 82 is via a supply line 84, the input side in front of the preheat heating surface 82 with a valve 86 can be shut off, with the device 80 for generating foreign steam connected.
- the output side is connected to the separate preheating heating surface 82 a shut-off with a valve 88 steam line 90 connected, which opens into the steam line 50.
- the steam turbine plant 2B To control the amount of extraneous vapor F, which is the separate Preheating heating surface 82 from the device 80 for generating foreign steam is fed, the steam turbine plant 2B a Control device 100 on.
- the control device 100 is via a measuring line 102 with a number of sensors 104 connected in a manner not shown on the output side after the separate preheating heating surface 82 steam parameters P of preheated in the separate preheat 82 Determine external steam F '.
- the control device 100 via another measuring line 106 with a Sensor 108 connected, in a manner not shown on the input side in front of the separate preheating 82 for Measurement of the amount of the separate Voricarmlik Structure 82 fed Fremddampfs F is designed.
- the control device 100 For the regulation of the separate Voricarm carving Structure 82 amount supplied Foreign steam F is the control device 100 via a control line 110 with the input side before the separate preheat heating 82 arranged valve 86 of the supply line 84th for external steam F
- the in the steam generator 30 preheated external vapor F 'then passes on the output side after the separate preheat heating surface 82 over the Steam line 90 into the steam line 50 leading into the steam inlet 51 of the superheater heating surface 52 opens.
- the superheated heating area 52 is both the preheated foreign vapor F 'as also the effluent from the high-pressure stage 22A of the steam turbine 22 Steam overheated.
- the superheated steam then passes via the steam line 56 into the medium-pressure stage 22B of Steam turbine 22.
- the control device 100 In order to make a particularly favorable use of the residual heat of the To achieve steam generator 30, regulates the control device 100, the amount of the separate Vormérmsammlung Structure 82 supplied External vapor F as a function of the output side after the separate preheat heating surface 82 via the sensors 104 determined steam parameters P. For this purpose, the control device measures 100 via the sensor 108, the amount of the separate Preheat heating surface 82 supplied external steam F. As a function of from the detected by the sensors 104 steam parameters P then performs the control device 100 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 plant 2B fed external steam F a particularly high Increasing the overall efficiency of the system causes.
- 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)
Description
Claims (6)
- Dampfturbinenanlage (2B) mit einem Dampferzeuger (30), einer Dampfturbine (22) und einem Wasser-Dampf-Kreislauf (26), wobei der Dampferzeuger eine Vorwärmheizfläche (82), sowie eine in den Wasser-Dampf-Kreislauf (26) geschaltete Überhitzerheizfläche (52) mit einem Dampfeinlaß (51) aufweist,
dadurch gekennzeichnet, daß
die Vorwärmheizfläche (82) in Form einer vom Wasser-Dampf-Kreislauf (26) separierten Vorwärmheizfläche (82) gebildet ist, die eingangsseitig mit einer außerhalb des Wasser-Dampf-Kreislaufs (26) angeordneten Einrichtung (80) zur Erzeugung von in den Wasser-Dampf-Kreislauf (26) einzuspeisendem Fremddampf (F) 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. - Dampf turbinenanlage (2) nach einem der Ansprüche 1 bis 3,
wobei der Dampferzeuger (30) als Abhitzedampferzeuger (30) ausgebildet und rauchgasseitig einer 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 außerhalb des Wasser-Dampf-Kreislaufs (26) angeordneten Einrichtung (80) zur Erzeugung von in den Wasser-Dampf-Kreislauf (26) einzuspeisendem Fremddampf (F) einer im Dampferzeuger (30) angeordneten vom Nasser-Dampf-Kreislauf (26) separierten 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 eine Anzahl von Dampfparametern (P) ausgangsseitig nach der Vorwärmheizfläche (82) ermittelt wird, 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 EP1022440A2 (de) | 2000-07-26 |
EP1022440A3 EP1022440A3 (de) | 2002-08-07 |
EP1022440B1 true 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) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012095243A1 (de) * | 2011-01-12 | 2012-07-19 | Martin Hadlauer | Gas/dampfturbinenanlage für solare anbindung |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2131347A1 (de) * | 1971-06-24 | 1972-12-28 | Kraftwerk Union Ag | Dampfkraftanlage |
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 |
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 ES ES00100593T patent/ES2253145T3/es not_active Expired - Lifetime
- 2000-01-12 EP EP20000100593 patent/EP1022440B1/de not_active Expired - Lifetime
- 2000-01-12 DE DE50011665T patent/DE50011665D1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE50011665D1 (de) | 2005-12-29 |
ES2253145T3 (es) | 2006-06-01 |
EP1022440A2 (de) | 2000-07-26 |
DE19902810C1 (de) | 2000-05-25 |
EP1022440A3 (de) | 2002-08-07 |
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