EP2362073A1 - Steam power station comprising a tuning turbine - Google Patents
Steam power station comprising a tuning turbine Download PDFInfo
- Publication number
- EP2362073A1 EP2362073A1 EP10164091A EP10164091A EP2362073A1 EP 2362073 A1 EP2362073 A1 EP 2362073A1 EP 10164091 A EP10164091 A EP 10164091A EP 10164091 A EP10164091 A EP 10164091A EP 2362073 A1 EP2362073 A1 EP 2362073A1
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- Prior art keywords
- turbine
- steam
- main
- feed pump
- tuning
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- 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
- F01K9/00—Plants characterised by condensers arranged or modified to co-operate with the engines
- F01K9/02—Arrangements or modifications of condensate or air pumps
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- 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
- F01K17/00—Using steam or condensate extracted or exhausted from steam engine plant
- F01K17/06—Returning energy of steam, in exchanged form, to process, e.g. use of exhaust steam for drying solid fuel or plant
Definitions
- the invention relates to a steam power plant comprising a main turbine, a condenser, a feedwater pump, a tuning turbine for driving the feedwater pump, wherein the tuning turbine is designed as a steam turbine, wherein a steam outlet is fluidically connected to a steam supply from the turbo set.
- feedwater is used to convert in a steam generator to compressed and high-temperature steam, which is then thermally converted in a main steam turbine set.
- the feed water is pumped by means of so-called boiler feed pumps against the resistance of the live steam pressure in the boiler or steam generator.
- boiler feed pumps are powered by steam turbines and referred to as feed pump power turbine (SPAT).
- PAT feed pump power turbine
- a corresponding reserve is taken into account and kept in reserve during the construction or switching of the feed pump drive turbine.
- the feed pump power turbine is fed from a tap of the main steam turbine (at a pressure level between 10 and 15 bar) and then expanded to a condenser level.
- the feed pump drive turbine can in this case have its own capacitor or the exhaust steam of the feed pump drive turbine is on the condenser of the main steam turbine directed.
- the feed pump drive turbine is additionally fed from a tap having a higher pressure (typically from cold reheat).
- the problem is when the feed pump drive turbine is designed as a so-called tuning turbine with a feed from a top tap of the main steam turbine and exhaust steam on a regenerative preheater. Because in this case, an increase in performance by switching to a higher pressure in the tap is not possible.
- One possible technical solution for ensuring the power reserve is a sufficient pre-throttling of the feed pump drive turbine in nominal operation. However, such throttling is a drawback from the standpoint of efficiency in continuous operation.
- the object of the invention is to better utilize a feed pump drive turbine.
- a changeover can also be made to a preheater (lower in terms of pressure).
- the exhaust steam of the feed pump drive turbine can be introduced into a line section or a turbine housing of the main steam turbine.
- control measures must be taken to ensure a safe shutdown in case of a quick closing of the main steam turbine, z. B. by double barriers, instrumentation execution according to the safety significance.
- the preheater or the feed point is selected specifically as a function of the feed pump power requirement. This could also be called “Wanderabdampf”.
- the tuning turbine or feed pump drive turbine is designed with taps, which serve for regenerative feedwater preheating the steam power plant.
- a significant advantage is that the new solution offers an efficiency optimized circuit for rated operation, in which the tuning turbine or feed pump drive turbine can be operated without substantial throttling (thereby high efficiency in long-term rated operation or in the upper part-load operation). This advantage also ensures the safe operation of the main turbine set and the tuning turbine or feed pump drive turbine in special load cases such as bypass operation of the main steam turbine.
- a parallel support of one or more preheaters including the feed water tank which are supplied by taps or exhaust steam of the feed pump drive turbine from the main turbo set or the water-steam cycle.
- bleed mass flows can be reduced and replaced by backup mass flows.
- the tuning turbine or feed pump drive turbine is designed with a throttle reserve that can cover typical long-term operating modes without switching to the capacitor.
- the power requirement is achieved by increasing the slope not by increased pressure at the entrance, but by lowering the back pressure.
- An increase in the pressure at the inlet would only be possible by supporting the feed pump drive turbine from the live steam, but this would mean that the feed pump drive turbine would have to cope with a large temperature jump and would have to be designed for comparatively high inlet temperatures.
- An advantage of the invention is that the component stress and the efficiency and the operability of a steam power plant is improved.
- the invention can be used in a special way for the application in efficiency critical large power plants with single or double reheat.
- the FIG. 1 shows a steam power plant 1 according to the prior art.
- the steam power plant 1 comprises a main turbine set 2, which comprises a high-pressure turbine section 3, a first medium-pressure turbine section 4 and a second medium-pressure turbine section 5 and a low-pressure turbine section 6.
- the high-pressure turbine part 3 is supplied via a main steam line 7 with a steam generator or boiler 8 with live steam.
- the effluent from the high-pressure turbine section 3 steam is passed in a cold reheater line 9 to a first reheater 10.
- the steam is heated and then passed through a hot reheater line 11 to the first medium-pressure turbine section 4.
- the effluent from the first medium-pressure turbine section 4 steam is passed through a further cold reheater line 12 in a second reheater 13. This steam is in turn heated and passed through another hot reheater line 14 to the second medium-pressure turbine section 5.
- the effluent from the second medium-pressure turbine section 5 steam relaxes in a low-pressure turbine section 6 and then flows into a main capacitor 15.
- In the main capacitor 15 condenses the relaxed Steam to water and is fed via a first line 16 to a feedwater pump 17.
- the feedwater pump 17 the water is pressed against the live steam pressure in the steam generator or boiler 8.
- the feed water pump is driven by a feed pump drive turbine (SPAT), which can also be called a tuning turbine.
- SPAT feed pump drive turbine
- the feed pump drive turbine 18 is designed as a steam turbine and is fresh steam side 19 via a throttle body 20 with the cold reheater line 19 fluidly connected.
- the thermal energy of the located in the cold reheater line 9 cold reheater steam relaxes in the feed pump drive turbine 18 and drives a rotor 21, not shown, which finally drives the feedwater pump 17.
- the feed pump drive turbine 18 has a tap 22, from which steam is conducted to a further condenser 23.
- the steam conducted in this further condenser 23 condenses to water and flows via a second line 24 to a preheater 25.
- the outlet-side exhaust steam 26 also flows via an exhaust steam line 27 to the preheater 25 and preheats the feed water.
- the throttle member 22 is strongly throttled in the prior art for a power or speed control in normal operation.
- the exhaust steam of the feed pump drive turbine 18 is passed to the preheater 25 in normal operation.
- the main turboset 2 finally drives an electric generator 28 for generating electrical energy.
- FIG. 2 shows a steam power plant 1 according to the invention.
- the difference from the steam power plant 1 according to the prior art is that the steam line 27 is additionally guided via a Kondensatorabdampftechnisch 29 to the main capacitor 15. This means that the effluent from the feed pump drive turbine 18 steam can flow to both the preheater 25 and the main capacitor 15.
- a second throttle body 30 is arranged in the Kondensatorabdampf.
- the throttle body 30 opens 100% in a certain operating condition and thus gives the first throttle member 20 before the feed pump drive turbine 18 a greater control margin.
- the exhaust steam of the feed pump drive turbine 18 is passed to the main capacitor 15 at an increased power requirement of the feedwater pump.
- a support line 31, which connects the cold reheater line 12 to an input 32 of the preheater 25, are arranged.
- the FIG. 3 shows the relationship between the power 33 and the valve lift 34.
- the first straight line 35 shows the curve of the power over the valve lift 34 when the capacitor switchover is open.
- the second line 36 shows the power over the valve lift 34 when the capacitor switch is closed.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Turbines (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
Description
Die Erfindung betrifft ein Dampfkraftwerk umfassend einen Hauptturbosatz, einen Kondensator, eine Speisewasserpumpe, eine Tuning-Turbine zum Antreiben der Speisewasserpumpe, wobei die Tuning-Turbine als Dampfturbine ausgebildet ist, wobei ein Dampfauslaß mit einer Dampfzuführung aus dem Turbosatz strömungstechnisch verbunden ist.The invention relates to a steam power plant comprising a main turbine, a condenser, a feedwater pump, a tuning turbine for driving the feedwater pump, wherein the tuning turbine is designed as a steam turbine, wherein a steam outlet is fluidically connected to a steam supply from the turbo set.
In Dampfkraftwerken bzw. in Kraftwerksprozessen wird Speisewasser verwendet, um in einem Dampferzeuger zu komprimierten und hoch temperierten Dampf umzuwandeln, der anschließend in einem Dampf-Hauptturbosatz thermisch umgewandelt wird. Das Speisewasser wird mit Hilfe von sogenannten Kesselspeisepumpen gegen den Widerstand des Frischdampf-Druckes in den Kessel bzw. Dampferzeuger gepumpt. Häufig werden diese Kesselspeisepumpen durch Dampfturbinen angetrieben und als Speisepumpen-Antriebsturbine (SPAT) bezeichnet. Bei der Auslegung dieser Pumpen-Antriebssysteme muss berücksichtigt werden, dass die Kesselspeisepumpe in Extremfällen einen 20% bis 30% erhöhten Leistungsbedarf benötigt (Bypass-Betrieb des Hauptturbosatzes). Dieser erhöhte Leistungsbedarf muss durch die Speisepumpen-Antriebsturbine bereitgestellt werden. Dazu wird bei der Konstruktion bzw. Schaltung der Speisepumpen-Antriebsturbine eine entsprechende Reserve berücksichtigt und vorgehalten.In steam power plants or in power plant processes feedwater is used to convert in a steam generator to compressed and high-temperature steam, which is then thermally converted in a main steam turbine set. The feed water is pumped by means of so-called boiler feed pumps against the resistance of the live steam pressure in the boiler or steam generator. Often, these boiler feed pumps are powered by steam turbines and referred to as feed pump power turbine (SPAT). When designing these pump drive systems, it must be taken into account that in extreme cases the boiler feed pump requires a 20% to 30% increase in power consumption (bypass operation of the main turbo set). This increased power requirement must be provided by the feed pump power turbine. For this purpose, a corresponding reserve is taken into account and kept in reserve during the construction or switching of the feed pump drive turbine.
In herkömmlichen oder typischen Kraftwerksprozessen mit einer einfachen oder doppelten Zwischenüberhitzereinheit wird die Speisepumpen-Antriebsturbine aus einer Anzapfung der Hauptdampfturbine gespeist (bei einem Druckniveau zwischen 10 und 15 bar) und anschließend auf ein Kondensatorniveau expandiert. Die Speisepumpen-Antriebsturbine kann hierbei einen eigenen Kondensator haben oder der Abdampf der Speisepumpen-Antriebsturbine wird auf den Kondensator der Hauptdampfturbine geleitet. Im Falle einer erhöhten Leistungsanforderung wird die Speisepumpen-Antriebsturbine zusätzlich aus einer Anzapfung gespeist, die einen höheren Druck aufweist (typischerweise aus der kalten Zwischenüberhitzung).In conventional or typical power plant processes with a single or double reheater unit, the feed pump power turbine is fed from a tap of the main steam turbine (at a pressure level between 10 and 15 bar) and then expanded to a condenser level. The feed pump drive turbine can in this case have its own capacitor or the exhaust steam of the feed pump drive turbine is on the condenser of the main steam turbine directed. In the case of an increased power requirement, the feed pump drive turbine is additionally fed from a tap having a higher pressure (typically from cold reheat).
Problematisch ist, wenn die Speisepumpen-Antriebsturbine als sogenannte Tuning-Turbine mit einer Speisung aus einer obersten Anzapfung der Hauptdampfturbine und Abdampf auf einen Regenerativ-Vorwärmer ausgeführt ist. Denn in diesem Fall ist eine Steigerung der Leistung durch ein Umschalten auf eine im Druck höhere Anzapfung nicht möglich. Eine mögliche technische Lösung zur Sicherstellung der Leistungsreserve ist eine ausreichende Vordrosselung der Speisepumpen-Antriebsturbine im Nennbetrieb. Solch eine Androsselung ist aber vom Standpunkt des Wirkungsgrades her im Dauerbetrieb ein Nachteil.The problem is when the feed pump drive turbine is designed as a so-called tuning turbine with a feed from a top tap of the main steam turbine and exhaust steam on a regenerative preheater. Because in this case, an increase in performance by switching to a higher pressure in the tap is not possible. One possible technical solution for ensuring the power reserve is a sufficient pre-throttling of the feed pump drive turbine in nominal operation. However, such throttling is a drawback from the standpoint of efficiency in continuous operation.
Aufgabe der Erfindung ist es, eine Speisepumpen-Antriebsturbine besser auszulasten.The object of the invention is to better utilize a feed pump drive turbine.
Gelöst wird diese Aufgabe durch ein Dampfkraftwerk gemäß Anspruch 1 sowie durch ein Verfahren zum Betreiben einer Tuning-Turbine in einem Dampfkraftwerk gemäß Anspruch 4.This object is achieved by a steam power plant according to claim 1 and by a method for operating a tuning turbine in a steam power plant according to claim 4.
Eine erhöhte Leistungsanforderung an die Speisepumpen-Antriebsturbine erfolgt in dem Falle, dass Drosselorgane vor der Speisepumpen-Antriebsturbine bereits komplett bzw. voll geöffnet sind, durch Umschalten des Abdampfes auf den Hauptkondensator. Dabei muss wiederum ein Drosselorgan zwischen der Speisepumpen-Antriebsturbinen-Abdampf und Kondensator den Gegendruck so einstellen, dass entweder dieses Drosselorgan die Leistungs- bzw. Drehzahlregelung übernimmt oder der Druck am Speisepumpen-Antriebsturbinen-Abdampf so abgesenkt wird, dass zum einen die Beschaufelung der Speisepumpen-Antriebsturbine nicht überlastet wird und zum anderen die Drosselorgane vor der Speisepumpen-Antriebsturbine wieder eine Regelreserve aufweisen. Dadurch ist es möglich, für die Speisepumpen-Antriebsturbine ein erhöhtes Enthalpiegefälle bereitzustellen, so dass eine höhere Leistung erreicht werden kann. Dies wird erfindungsgemäß dadurch erreicht, dass der Abdampfdruck abgesenkt wird. Im Stand der Technik wird dies durch eine Anhebung des Zudampfdruckes erreicht, welcher bei der vorgesehenen Anwendung aufgrund der vorteilhaften Verschaltung der Speisepumpen-Antriebsturbine auf die oberen Anzapfungen des Hauptturbosatzes nicht mehr möglich ist.An increased power requirement to the feed pump drive turbine takes place in the event that throttle bodies in front of the feed pump drive turbine are already fully opened by switching the exhaust steam to the main condenser. Again, a throttle body between the feed pump drive turbine exhaust steam and condenser must set the back pressure so that either this throttle body takes over the power or speed control or the pressure at the feed pump drive turbine exhaust steam is lowered so that on the one hand the blading of the feed pumps Drive turbine is not overloaded and on the other hand, the throttle bodies in front of the feed pump drive turbine again have a control reserve. This makes it possible to provide an increased enthalpy gradient for the feed pump drive turbine, so that a higher performance can be achieved. This is inventively achieved in that the Abdampfdruck is lowered. In the prior art, this is achieved by increasing the Zudampfdruckes, which is no longer possible in the intended application due to the advantageous interconnection of the feed pump drive turbine to the upper taps of the main turbine set.
In einer alternativen Ausführungsform kann anstelle des Hauptkondensators eine Umschaltung auch auf einen (hinsichtlich des Druckes) tiefer liegenden Vorwärmer erfolgen.In an alternative embodiment, instead of the main capacitor, a changeover can also be made to a preheater (lower in terms of pressure).
In einer weiteren alternativen Ausführungsform kann der Abdampf der Speisepumpen-Antriebsturbine in einen Leitungsabschnitt oder einem Turbinengehäuse der Hauptdampfturbine eingeleitet werden. In diesem Falle sind regelungstechnische Maßnahmen zu treffen, die im Falle eines Schnellschlusses der Hauptdampfturbine ein sicheres Abfahren gewährleisten, z. B. durch doppelte Absperrungen, leittechnische Ausführung entsprechend der sicherheitstechnischen Bedeutung.In a further alternative embodiment, the exhaust steam of the feed pump drive turbine can be introduced into a line section or a turbine housing of the main steam turbine. In this case, control measures must be taken to ensure a safe shutdown in case of a quick closing of the main steam turbine, z. B. by double barriers, instrumentation execution according to the safety significance.
In einer weiteren vorteilhaften Ausführungsform wird der Vorwärmer bzw. die Einspeisestelle als Funktion der Speisepumpen-Leistungsanforderung gezielt ausgewählt. Dies könnte auch als "Wanderabdampf" bezeichnet werden.In a further advantageous embodiment, the preheater or the feed point is selected specifically as a function of the feed pump power requirement. This could also be called "Wanderabdampf".
In einer Ausgestaltung der Erfindung wird die Tuning-Turbine bzw. Speisepumpen-Antriebsturbine mit Anzapfungen ausgeführt, welche zur regenerativen Speisewasservorwärmung der Dampfkraftanlage dienen. Dadurch wird eine angepasste Temperatur des Anzapfdampfes erreicht und ein Exergieverlust für die Speisewasservorwärmung vermieden, was sich vorteilhaft auf den Gesamtwirkungsgrad der Gesamtanlage auswirkt.In one embodiment of the invention, the tuning turbine or feed pump drive turbine is designed with taps, which serve for regenerative feedwater preheating the steam power plant. As a result, an adapted temperature of the bleed steam is achieved and an exergy loss for the feedwater pre-heating avoided, which has an advantageous effect on the overall efficiency of the entire system.
Ein wesentlicher Vorteil ist, dass die neue Lösung eine Wirkungsgrad optimierte Schaltung für den Nennbetrieb anbietet, bei dem die Tuning-Turbine bzw. Speisepumpen-Antriebsturbine ohne eine wesentliche Drosselung betrieben werden kann (dadurch hoher Wirkungsgrad im lang andauernden Nennbetrieb bzw. im oberen Teillastbetrieb). Dieser Vorteil stellt zudem eine Wahrung der sicheren Betreibbarkeit des Hauptturbosatzes und der Tuning-Turbine bzw. Speisepumpen-Antriebsturbine bei Sonderlastfällen wie Bypassbetrieb der Hauptdampfturbine dar.A significant advantage is that the new solution offers an efficiency optimized circuit for rated operation, in which the tuning turbine or feed pump drive turbine can be operated without substantial throttling (thereby high efficiency in long-term rated operation or in the upper part-load operation). This advantage also ensures the safe operation of the main turbine set and the tuning turbine or feed pump drive turbine in special load cases such as bypass operation of the main steam turbine.
In einem sogenannten letzteren Betriebspunkt wird aufgrund der Umschaltung eine Mehrleistung erreicht, die allerdings mit einem geringeren Wirkungsgrad verbunden ist, was aufgrund der kurzen Betriebsdauer im Bypassbetrieb durchaus akzeptiert werden kann.In a so-called latter operating point, an extra power is achieved due to the switching, which is however associated with a lower efficiency, which can be quite accepted due to the short operating time in bypass mode.
Um einen sicheren und zuverlässigen Betrieb der Tuning-Turbine bzw. Speisepumpen-Antriebsturbine auch bei unterschiedlichen Anforderungen des Hauptturbosatzes zu ermöglichen, ist eine parallele Stützung einzelner oder mehrerer Vorwärmer inklusive des Speisewasserbehälters, welche durch Anzapfungen bzw. Abdampf der Speisepumpen-Antriebsturbine versorgt werden, aus dem Hauptturbosatz oder dem Wasser-Dampf-Kreislauf vorzusehen. Im Falle einer moderaten Erhöhung der Leistungsanforderung der Speisepumpen-Antriebsturbine bzw. Tuning-Turbine können Anzapfmassenströme reduziert werden und durch Stützungsmassenströme ersetzt werden. Vorteilhafte Weise ist die Tuning-Turbine bzw. Speisepumpen-Antriebsturbine mit einer Drosselreserve ausgelegt, die typische lange langzeitige Betriebsarten ohne Umschaltung auf den Kondensator abdecken können.In order to enable a safe and reliable operation of the tuning turbine or feed pump drive turbine even with different requirements of the main turbo set, a parallel support of one or more preheaters including the feed water tank, which are supplied by taps or exhaust steam of the feed pump drive turbine from the main turbo set or the water-steam cycle. In the case of a modest increase in the power requirement of the feed pump turbine or tuning turbine, bleed mass flows can be reduced and replaced by backup mass flows. Advantageously, the tuning turbine or feed pump drive turbine is designed with a throttle reserve that can cover typical long-term operating modes without switching to the capacitor.
Erfindungsgemäß wird die Leistungsanforderung durch Erhöhung des Gefälles nicht durch erhöhten Druck am Eintritt realisiert, sondern durch Absenkung des Gegendrucks. Eine Erhöhung des Druckes am Eintritt wäre nur möglich durch Stützen der Speisepumpen-Antriebsturbine aus dem Frischdampf, was aber zur Folge haben würde, dass die Speisepumpen-Antriebsturbine einen großen Temperatursprung verkraften müsste und für vergleichsweise hohe Eintrittstemperaturen ausgelegt werden müsste.According to the invention, the power requirement is achieved by increasing the slope not by increased pressure at the entrance, but by lowering the back pressure. An increase in the pressure at the inlet would only be possible by supporting the feed pump drive turbine from the live steam, but this would mean that the feed pump drive turbine would have to cope with a large temperature jump and would have to be designed for comparatively high inlet temperatures.
Ein Vorteil der Erfindung besteht darin, dass die Bauteilbeanspruchung und der Wirkungsgrad sowie die Betreibbarkeit einer Dampfkraftanlage verbessert wird. Die Erfindung ist in besonderer Weise für die Anwendung in Wirkungsgrad kritischen Großkraftwerksanlagen mit einfacher oder doppelter Zwischenüberhitzung einsetzbar.An advantage of the invention is that the component stress and the efficiency and the operability of a steam power plant is improved. The invention can be used in a special way for the application in efficiency critical large power plants with single or double reheat.
Die Erfindung wird anhand eines Ausführungsbeispiels näher erläutert. Die Figuren zeigen in schematischer Weise folgendes dar:
- Figur 1
- ein Dampfkraftwerk gemäß dem Stand der Technik;
Figur 2- ein erfindungsgemäßes Dampfkraftwerk;
Figur 3- eine graphische Darstellung der Leistung über den Ventilhub.
- FIG. 1
- a steam power plant according to the prior art;
- FIG. 2
- an inventive steam power plant;
- FIG. 3
- a graphic representation of the power over the valve lift.
Die
Die Speisepumpen-Antriebsturbine 18 ist als eine Dampfturbine ausgebildet und wird frischdampfseitig 19 über ein Drosselorgan 20 mit der kalten Zwischenüberhitzerleitung 19 strömungstechnisch verbunden. Die thermische Energie des in der kalten Zwischenüberhitzerleitung 9 befindlichen kalten Zwischenüberhitzerdampfes entspannt in der Speisepumpen-Antriebsturbine 18 und treibt einen nicht näher dargestellten Rotor 21, der schließlich die Speisewasserpumpe 17 antreibt. Die Speisepumpen-Antriebsturbine 18 weist eine Anzapfung 22 auf, aus der Dampf zu einem weiteren Kondensator 23 geführt wird. Der in diesem weiteren Kondensator 23 geleitete Dampf kondensiert zu Wasser und strömt über eine zweite Leitung 24 zu einem Vorwärmer 25. Der ausgangsseitige Abdampf 26 strömt über eine Abdampfleitung 27 ebenfalls zum Vorwärmer 25 und wärmt das Speisewasser vor. Das Drosselorgan 22 ist im Stand der Technik für eine Leistungs- bzw. Drehzahlregelung im Normalbetrieb stark angedrosselt. Der Abdampf der Speisepumpen-Antriebsturbine 18 wird im Normalbetrieb auf den Vorwärmer 25 geleitet. Der Hauptturbosatz 2 treibt schließlich einen elektrischen Generator 28 zur Erzeugung von elektrischer Energie an.The feed
Die
Das Drosselorgan 30 öffnet zu 100% in einem bestimmten Betriebszustand und gibt damit dem ersten Drosselorgan 20 vor der Speisepumpen-Antriebsturbine 18 einen größeren Regelspielraum. Der Abdampf der Speisepumpen-Antriebsturbine 18 wird bei einem erhöhten Leistungsbedarf der Speisewasserpumpe auf den Hauptkondensator 15 geleitet.The
In einer vorteilhaften Weiterbildung kann eine Stützleitung 31, die die kalte Zwischenüberhitzerleitung 12 mit einem Eingang 32 des Vorwärmers 25 verbindet, angeordnet werden.In an advantageous development, a
Die
Claims (4)
wobei die Tuning-Turbine (18) als Dampfturbine ausgebildet ist,
wobei eine Frischdampfseite (19) mit einer Dampfzuführung (9) aus dem Hauptturbosatz (2) strömungstechnisch verbunden ist,
dadurch gekennzeichnet, dass
eine Abdampfleitung (27) der Tuning-Turbine (18) mit dem Hauptkondensator (15) verbunden ist.Steam power plant (1) comprising a main turbine set (2), a condenser (15), a feedwater pump (17), a tuning turbine (18) for driving the feedwater pump (17),
wherein the tuning turbine (18) is designed as a steam turbine,
wherein a live steam side (19) is fluidically connected to a steam feed (9) from the main turbo set (2),
characterized in that
an exhaust steam line (27) of the tuning turbine (18) is connected to the main capacitor (15).
wobei zwischen der Abdampfleitung (27) und dem Hauptkondensator (15) ein Drosselorgan (30) angeordnet ist.Steam power plant (1) according to claim 1,
wherein between the exhaust steam line (27) and the main condenser (15) a throttle body (30) is arranged.
wobei die Abdampfleitung (27) mit einem zweiten Kondensator (23) verbunden ist.Steam power plant (1) according to claim 1 or 2,
wherein the exhaust steam line (27) is connected to a second condenser (23).
wobei die Tuning-Turbine (18) eine Speisewasserpumpe (17) antreibt,
wobei die Tuning-Turbine (18) als Dampfturbine ausgebildet wird und
eine Abdampfleitung (27) der Tuning-Turbine (18) mit einem Hauptkondensator (15) eines Hauptturbosatzes (2) strömungstechnisch verbunden wird.Method for operating a tuning turbine (18) in a steam power plant (1),
the tuning turbine (18) driving a feedwater pump (17),
wherein the tuning turbine (18) is designed as a steam turbine and
an exhaust steam line (27) of the tuning turbine (18) with a main condenser (15) of a main turbine set (2) is fluidly connected.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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CN201180010808.2A CN102770625B (en) | 2010-02-23 | 2011-02-22 | Heat power station and the method for running adjustment type turbo machine wherein |
PCT/EP2011/052583 WO2011104223A1 (en) | 2010-02-23 | 2011-02-22 | Steam power plant comprising a tuning turbine |
EP11706801A EP2539550A1 (en) | 2010-02-23 | 2011-02-22 | Steam power plant comprising a tuning turbine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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DE201010009130 DE102010009130A1 (en) | 2010-02-23 | 2010-02-23 | Steam power plant comprising a tuning turbine |
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EP2362073A1 true EP2362073A1 (en) | 2011-08-31 |
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Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10164091A Withdrawn EP2362073A1 (en) | 2010-02-23 | 2010-05-27 | Steam power station comprising a tuning turbine |
EP11706801A Withdrawn EP2539550A1 (en) | 2010-02-23 | 2011-02-22 | Steam power plant comprising a tuning turbine |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP11706801A Withdrawn EP2539550A1 (en) | 2010-02-23 | 2011-02-22 | Steam power plant comprising a tuning turbine |
Country Status (4)
Country | Link |
---|---|
EP (2) | EP2362073A1 (en) |
CN (1) | CN102770625B (en) |
DE (1) | DE102010009130A1 (en) |
WO (1) | WO2011104223A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2444596A3 (en) * | 2010-10-19 | 2017-08-02 | Kabushiki Kaisha Toshiba | Steam turbine plant |
WO2018010878A1 (en) * | 2016-07-11 | 2018-01-18 | Siemens Aktiengesellschaft | Power plant having optimized preheating of feed water for deep erected turbine sets |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103485848A (en) * | 2013-09-30 | 2014-01-01 | 中国电力工程顾问集团华东电力设计院 | Backpressure steam extraction small turbine thermal system which is coaxial with single reheating main turbine |
CN103485849A (en) * | 2013-09-30 | 2014-01-01 | 中国电力工程顾问集团华东电力设计院 | Thermodynamic system of backpressure steam extraction small turbine which is coaxial with double reheating main turbine |
GB2519129A (en) * | 2013-10-10 | 2015-04-15 | Ide Technologies Ltd | Pumping Apparatus |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3972196A (en) * | 1974-05-10 | 1976-08-03 | Westinghouse Electric Corporation | Steam pressure increasing device for drive turbines |
US4043130A (en) * | 1975-02-10 | 1977-08-23 | Westinghouse Electric Corporation | Turbine generator cycle for provision of heat to an external heat load |
US4087860A (en) * | 1977-07-08 | 1978-05-02 | Westinghouse Electric Corp. | System for multi-mode control of a boiler feedpump turbine |
JPS58143106A (en) * | 1982-02-19 | 1983-08-25 | Toshiba Corp | Feed water pump turbine device |
WO1994027033A1 (en) * | 1993-05-14 | 1994-11-24 | Sevillana De Electricidad, S.A. | Recycling of exhaust gases from a gas turbine for the second intermediary reheating of a main flow of a steam cycle |
US5404724A (en) * | 1994-04-07 | 1995-04-11 | Westinghouse Electric Corporation | Boiler feedpump turbine drive/feedwater train arrangement |
DE19507167C1 (en) * | 1995-03-01 | 1996-05-02 | Siemens Ag | Double steam-turbine plant with condensers in common coolant circuit |
US5533337A (en) * | 1993-07-23 | 1996-07-09 | Hitachi, Ltd. | Feed water supply system of power plant |
-
2010
- 2010-02-23 DE DE201010009130 patent/DE102010009130A1/en not_active Withdrawn
- 2010-05-27 EP EP10164091A patent/EP2362073A1/en not_active Withdrawn
-
2011
- 2011-02-22 CN CN201180010808.2A patent/CN102770625B/en not_active Expired - Fee Related
- 2011-02-22 WO PCT/EP2011/052583 patent/WO2011104223A1/en active Application Filing
- 2011-02-22 EP EP11706801A patent/EP2539550A1/en not_active Withdrawn
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3972196A (en) * | 1974-05-10 | 1976-08-03 | Westinghouse Electric Corporation | Steam pressure increasing device for drive turbines |
US4043130A (en) * | 1975-02-10 | 1977-08-23 | Westinghouse Electric Corporation | Turbine generator cycle for provision of heat to an external heat load |
US4087860A (en) * | 1977-07-08 | 1978-05-02 | Westinghouse Electric Corp. | System for multi-mode control of a boiler feedpump turbine |
JPS58143106A (en) * | 1982-02-19 | 1983-08-25 | Toshiba Corp | Feed water pump turbine device |
WO1994027033A1 (en) * | 1993-05-14 | 1994-11-24 | Sevillana De Electricidad, S.A. | Recycling of exhaust gases from a gas turbine for the second intermediary reheating of a main flow of a steam cycle |
US5533337A (en) * | 1993-07-23 | 1996-07-09 | Hitachi, Ltd. | Feed water supply system of power plant |
US5404724A (en) * | 1994-04-07 | 1995-04-11 | Westinghouse Electric Corporation | Boiler feedpump turbine drive/feedwater train arrangement |
DE19507167C1 (en) * | 1995-03-01 | 1996-05-02 | Siemens Ag | Double steam-turbine plant with condensers in common coolant circuit |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2444596A3 (en) * | 2010-10-19 | 2017-08-02 | Kabushiki Kaisha Toshiba | Steam turbine plant |
WO2018010878A1 (en) * | 2016-07-11 | 2018-01-18 | Siemens Aktiengesellschaft | Power plant having optimized preheating of feed water for deep erected turbine sets |
Also Published As
Publication number | Publication date |
---|---|
DE102010009130A1 (en) | 2011-08-25 |
EP2539550A1 (en) | 2013-01-02 |
CN102770625A (en) | 2012-11-07 |
WO2011104223A1 (en) | 2011-09-01 |
CN102770625B (en) | 2015-12-02 |
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