EP0816641A2 - Process and system for improving efficiency of steam generators - Google Patents
Process and system for improving efficiency of steam generators Download PDFInfo
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- EP0816641A2 EP0816641A2 EP97110651A EP97110651A EP0816641A2 EP 0816641 A2 EP0816641 A2 EP 0816641A2 EP 97110651 A EP97110651 A EP 97110651A EP 97110651 A EP97110651 A EP 97110651A EP 0816641 A2 EP0816641 A2 EP 0816641A2
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- cooling water
- partial
- main
- before entering
- condenser
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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
- F01K9/003—Plants characterised by condensers arranged or modified to co-operate with the engines condenser cooling circuits
Definitions
- the invention relates to a method and a device to improve efficiency in steam power plants with a steam turbine plant with partial turbines, their associated Partial capacitors combined in a main capacitor system and are connected in series on the cooling water side.
- the cooling water is one Steam power plant with the help of cooling water pumps from a cooling water source (Cooling tower, receiving water, sea, ...) removed and via the main cooling water pipe to the main cooling water system, that usually consists of a main capacitor and this heat exchangers of the secondary cooling water system connected in parallel exists, fed.
- the secondary cooling water system takes as a closed Cooling circuit at a variety of cooling points (oil cooler the feed pump drive turbine, cooling devices Suction, fresh air fans, mills, ...) via intercoolers Heat from the auxiliary units to heat exchanges with a cooling water partial flow of the main cooling water system to couple into this circuit and to dissipate.
- the distribution of the leaving the cooling water pump Main cooling water flow between the main condenser and secondary cooling water system usually takes place via the hydraulic Design of the systems or if necessary additionally with the help of a booster pump. Often there is also a feed pump drive turbine, whose capacitor then also parallel to the main capacitor is switched.
- the temperature differences at the mixing point are also due to the system, especially in summer when cooling down the cold water temperatures up to about via a cooling tower Can rise to 30 ° C. So with this high cold water temperatures no impermissibly high outlet temperatures
- the heat exchangers occur in the secondary cooling water system of the secondary cooling water system for a significantly lower one Warm-up span designed as that of the main condenser system.
- the water temperature at the cooling water outlet the secondary cooling water system is therefore always significantly lower than the water temperature at the cooling water outlet the main capacitor.
- the object of the invention is therefore, even with fluctuating possibly relatively unfavorable environmental conditions for the main cooling water system, optimal exergy and efficiency ratios on the series connected partial turbines to achieve and still the possible with the cooling water Use transport capacity for heat dissipation.
- the object is achieved in that individual or all emerging from the partial capacitors Cooling water flows before entering the following partial condenser additional cooling water is added.
- the invention thus also takes into account the knowledge that that when mixing two different tempered Cooling water flows, admixing to one if possible Place should take place at which the temperatures of the Cooling water flows do not deviate too much from one another.
- the partial condenser (3b) becomes the cooling water throughput (8) increased by the second partial capacitor (3b) and consequently its cooling water outlet temperature is lowered.
- Second is due to the previous heat exchange in the first partial capacitor (3a), the temperature rise in the main cooling water flow (9) to a usually something comparable to that of the cooling water flow (7) Measure increased.
- Partial condenser (3b) Due to the reduced cooling water outlet temperature on Partial condenser (3b) becomes the usable pressure drop the reduced condenser pressure in the partial condenser (3b) associated sub-turbine increases and the efficiency this sub-turbine can be improved and thus the Weighted overall efficiency of the system increased accordingly will. On the other hand, they are in the secondary cooling water system already heated cooling water flows still effective Heat exchange in the partial condensers behind the first partial capacitor used.
- every line arrangement is the serves to solve the task, as a special embodiment to see the method according to the invention, and this regardless of the number of series Partial condensers, the type of cooling water supply and the size of the respective cooling water partial flows.
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- Engineering & Computer Science (AREA)
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- Combustion & Propulsion (AREA)
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- General Engineering & Computer Science (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren und eine Vorrichtung zur Wirkungsgradverbesserung in Dampfkraftwerken mit einer Dampfturbinenanlage mit Teilturbinen, deren zugeordnete Teilkondensatoren in einer Hauptkondensatoranlage zusammengefaßt und kühlwasserseitig in Reihe geschaltet sind.The invention relates to a method and a device to improve efficiency in steam power plants with a steam turbine plant with partial turbines, their associated Partial capacitors combined in a main capacitor system and are connected in series on the cooling water side.
Gemäß dem Stand der Technik wird das Kühlwasser eines Dampfkraftwerkes mit Hilfe von Kühlwasserpumpen einer Kühlwasserquelle (Kühlturm, Vorfluter, Meer, ...) entnommen und über die Hauptkühlwasserleitung dem Hauptkühlwassersystem, das in der Regel aus einem Hauptkondensator und den hierzu parallel geschalteten Wärmetauschern des Nebenkühlwassersystems besteht, zugeführt.According to the prior art, the cooling water is one Steam power plant with the help of cooling water pumps from a cooling water source (Cooling tower, receiving water, sea, ...) removed and via the main cooling water pipe to the main cooling water system, that usually consists of a main capacitor and this heat exchangers of the secondary cooling water system connected in parallel exists, fed.
Das Nebenkühlwassersystem, nimmt als geschlossener Kühlkreislauf an einer Vielzahl von Kühlstellen (Ölkühler der Speisepumpen-Antriebsturbine, Kühleinrichtungen an Saugzug, Frischlüfter, Mühlen, ...) über Zwischenkühler Wärme von den Hilfsaggregaten auf, um diese dann im Wärmeaustausch mit einem Kühlwasserteilstrom des Hauptkühlwassersystems in diesen Kreislauf einzukoppeln und abzuführen.The secondary cooling water system, takes as a closed Cooling circuit at a variety of cooling points (oil cooler the feed pump drive turbine, cooling devices Suction, fresh air fans, mills, ...) via intercoolers Heat from the auxiliary units to heat exchanges with a cooling water partial flow of the main cooling water system to couple into this circuit and to dissipate.
Die Verteilung des die Kühlwasserpumpe verlassenden Hauptkühlwasserstromes zwischen Hauptkondensator und Nebenkühlwassersystem erfolgt dabei in der Regel über die hydraulische Auslegung der Systeme oder ggf. zusätzlich zwangsweise mit Hilfe einer Druckerhöhungspumpe. Oft ist zusätzlich auch eine Speisepumpenantriebsturbine vorhanden, deren Kondensator dann ebenfalls zum Hauptkondensator parallel geschaltet ist.The distribution of the leaving the cooling water pump Main cooling water flow between the main condenser and secondary cooling water system usually takes place via the hydraulic Design of the systems or if necessary additionally with the help of a booster pump. Often there is also a feed pump drive turbine, whose capacitor then also parallel to the main capacitor is switched.
In den im Hauptkondensator in Reihe geschalteten Teilkondensatoren kondensiert der Abdampf der Teilturbinen jeweils bei einem Druck, der insbesondere von der jeweiligen Kühlwasseraustrittstemperatur am betreffenden Teilkondensator abhängt.In the partial capacitors connected in series in the main capacitor the exhaust steam from each turbine condenses at a pressure that is particularly different from the respective Cooling water outlet temperature at the relevant partial condenser depends.
In Stromrichtung des die Teilkondensatoren durchströmenden Kühlwasserstromes steigen die Kühlwasseraustrittstemperaturen mit jedem Wärmetausch in einem Teilkondensator zwangsläufig an. Das dem Abdampf der Teilturbinen zur Verfügung stehende Druckgefälle, das durch den jeweiligen Kondensatordruck bestimmt wird und sich unmittelbar auf die nutzbare Enthalpie auswirkt, wird somit bei dem zuerst durchströmten Teilkondensator am größten sein und sich in den nachfolgenden Teilkondensatoren verringern.In the direction of the current flowing through the partial capacitors Cooling water flow, the cooling water outlet temperatures rise with each heat exchange in a partial condenser inevitably. This is available for the exhaust steam from the partial turbines standing pressure drop caused by the respective condenser pressure is determined and directly related to the usable enthalpy is the first flow through the partial condenser is largest and in reduce the subsequent partial capacitors.
Des weiteren kann durch die Zusammenführung und Mischung der unterschiedlich temperierten Kühlwasserteilströme hinter dem Hauptkondensator das mögliche Exergiepotential für die einzelnen Teilturbinen nicht gleichmäßig aufrecht erhalten werden.Furthermore, by merging and mixing of the differently tempered cooling water partial flows the possible exergy potential behind the main capacitor not evenly upright for the individual partial turbines be preserved.
Die Temperaturunterschiede an der Mischstelle sind auch systembedingt, da insbesondere im Sommer bei Rückkühlung über einen Kühlturm die Kaltwassertemperaturen bis ungefähr 30 °C ansteigen können. Damit bei diesen hohen Kalt wassertemperaturen keine unzulässig hohen Austrittstemperaturen im Nebenkühlwassersystem auftreten, werden die Wärmetauscher des Nebenkühlwassersystems für eine deutlich geringere Aufwärmspanne ausgelegt als die der Hauptkondensatoranlage. Die Wassertemperatur beim Kühlwasseraustritt aus dem Nebenkühlwassersystem ist deshab stets deutlich niedriger als die Wassertemperatur beim Kühlwasseraustritt aus dem Hauptkondensator.The temperature differences at the mixing point are also due to the system, especially in summer when cooling down the cold water temperatures up to about via a cooling tower Can rise to 30 ° C. So with this high cold water temperatures no impermissibly high outlet temperatures The heat exchangers occur in the secondary cooling water system of the secondary cooling water system for a significantly lower one Warm-up span designed as that of the main condenser system. The water temperature at the cooling water outlet the secondary cooling water system is therefore always significantly lower than the water temperature at the cooling water outlet the main capacitor.
Aufgabe der Erfindung ist es deshalb, auch bei schwankenden ggf. relativ ungünstigen Umgebungsbedingungen für das Hauptkühlwassersystem, optimale Exergie- und Wirkungsgradverhältnisse an den seriell geschalteten Teilturbinen zu erreichen und dabei trotzdem die mit dem Kühlwasser mögliche Transportkapazität für den Wärmeabstrom zu nutzen.The object of the invention is therefore, even with fluctuating possibly relatively unfavorable environmental conditions for the main cooling water system, optimal exergy and efficiency ratios on the series connected partial turbines to achieve and still the possible with the cooling water Use transport capacity for heat dissipation.
Die Aufgabe wird erfindungsgemäß dadurch gelöst, daß einzelnen oder allen aus den Teilkondensatoren austretenden Kühlwasserströmen vor Eintritt in den nachfolgenden Teilkondensator zusätzliches Kühlwasser beigemischt wird.The object is achieved in that individual or all emerging from the partial capacitors Cooling water flows before entering the following partial condenser additional cooling water is added.
Dadurch wird der Wärmeaustausch im zweiten durchströmten Teilkondensator - und ggf. einem weiteren seriell nachgeschalteten Teilkondensator - verbessert, so daß günstigere Kondensationsverhältnisse an der zugeordneten Teilturbine zustande kommen.As a result, the heat exchange is flowed through in the second Partial capacitor - and possibly another one connected in series Partial capacitor - improved so that cheaper Condensation conditions on the assigned sub-turbine occurrence.
Dabei ist es sinnvoll, wenn das beigemischte Kühlwasser möglichst vollständig aus dem Hauptkühlwasserstrom vor Eintritt in den ersten Teilkondensator abgezweigt wird. Dieses Verfahren wird dann besonders vorteilhaft, wenn die vom Hauptkühlwasserstrom vor Eintritt in den ersten Teilkondensator abgezweigten Kühlwasserteilströme während der bypassartigen Umfahrung eines oder mehrerer Teilkondensatoren zumindest vereinzelt an einem Wärmeaustausch beteiligt sind, da dadurch die Kühlwassertemperaturen der Nebenströme zum Hauptkühlwasserstrom hin angeglichen werden, bevor sie anschließend wieder dem Hauptkühlwasserstrom beigemischt werden. Der vorgesehene Wärmeaustausch findet dabei besonders vorteilhaft in den Wärmetauschern des Nebenkühlwassersystems statt, um in diesem Kraftwerksbereich keine leistungsbegrenzenden Faktoren aufkommen zu lassen.It makes sense if the added cooling water as complete as possible from the main cooling water flow Entry into the first partial capacitor is branched off. This method is particularly advantageous when the of the main cooling water flow before entering the first partial condenser branched cooling water partial flows during the bypass-like bypassing one or more partial capacitors at least occasionally involved in a heat exchange are, as this reduces the cooling water temperatures of the secondary flows be aligned to the main cooling water flow before they then added to the main cooling water flow again will. The intended heat exchange is particularly important advantageous in the heat exchangers of the secondary cooling water system instead to avoid any power-limiting in this power plant area Factors.
Die Erfindung trägt damit auch der Erkenntnis Rechnung, daß bei der Vermischung zweier unterschiedlich temperierter Kühlwasserströme, die Zumischung möglichst an einer Stelle erfolgen sollte, an der die Temperaturen der Kühlwasserströme nicht zu stark voneinander abweichen.The invention thus also takes into account the knowledge that that when mixing two different tempered Cooling water flows, admixing to one if possible Place should take place at which the temperatures of the Cooling water flows do not deviate too much from one another.
Ausgehend von einer Anlage gemäß Figur 2/3, die dem Stand der Technik entspricht, wird die Erfindung an einer Anlage gemäß Figur 1/3 erläutert.Starting from a system according to Figure 2/3, the Corresponding to the state of the art, the invention is based on a System explained according to Figure 1/3.
Am Beispiel dieser aus zwei Teilkondensatoren bestehenden Anlage verfährt man dabei erfindungsgemäß so, daß der die Kühlwasserpumpe (1) verlassende Hauptkühlwasserstrom (2) vor Eintritt in den ersten Teilkondensator (3a) geteilt wird, so daß nur ein Teil des Hauptkühlwasserstromes (2) in den ersten Teilkondensator (3a) eintritt, während zumindest ein Teil des verbleibenden Teilstromes - ggf. über eine Druckerhöhungspumpe (5) geführt - den ersten Teilkondensator (3a) umfährt, das Nebenkühlwassersystem (4) durchströmt und als Kühlwasserteilstrom (7) das System verläßt, um anschließend unmittelbar hinter dem ersten Teilkondensator (3a) mit dem dort austretenden Kühlwasserteilstrom (9) gemischt zu werden. Dieser tritt dann - ggf. mit einer weiteren Kühlwasserzumischung (10 und/oder 11) - was von der Kühlwassertemperatur (7) abhängt - in den seriell folgenden Teilkondensator (3b) ein. Using the example of this consisting of two partial capacitors Plant is operated according to the invention so that the main cooling water flow leaving the cooling water pump (1) (2) before entering the first partial capacitor (3a) is divided so that only part of the main cooling water flow (2) enters the first partial capacitor (3a) while at least part of the remaining partial flow - if necessary via a booster pump (5) - the first Partial condenser (3a) bypasses the secondary cooling water system (4) flows through and as cooling water partial flow (7) System exits to then immediately after the first Partial condenser (3a) with the cooling water partial flow exiting there (9) to be mixed. This then occurs - if necessary with a further cooling water admixture (10 and / or 11) - which depends on the cooling water temperature (7) - in the serial capacitor (3b).
Durch diese erfindungsgemäße Beimischung vor dem zweiten Teilkondensator (3b) wird zum einen der Kühlwasserdurchsatz (8) durch den zweiten Teilkondensator (3b) erhöht und demzufolge dessen Kühlwasseraustrittstemperatur abgesenkt. Zum anderen ist zufolge des vorangegangenen Wärmeaustausches im ersten Teilkondensator (3a), der Temperaturanstieg im Hauptkühlwasserstrom (9) auf ein in der Regel etwas über dem des Kühlwasserstromes (7) vergleichbares Maß angestiegen.Through this admixture according to the invention before the second The partial condenser (3b) becomes the cooling water throughput (8) increased by the second partial capacitor (3b) and consequently its cooling water outlet temperature is lowered. Second is due to the previous heat exchange in the first partial capacitor (3a), the temperature rise in the main cooling water flow (9) to a usually something comparable to that of the cooling water flow (7) Measure increased.
Durch die verringerte Kühlwasseraustrittstemperatur am Teilkondensator (3b) wird das nutzbare Druckgefälle durch den verminderten Kondensatordruck in der dem Teilkondensator (3b) zugeordneten Teilturbine vergrößert und der Wirkungsgrad dieser Teilturbine kann verbessert und somit der Gesamtwirkungsgrad der Anlage entsprechend gewichtet erhöht werden. Andererseits werden die im Nebenkühlwassersystem bereits erwärmten Kühlwasserteilströme noch zu einem wirksamen Wärmeaustausch in den Teilkondensatoren hinter dem ersten Teilkondensator herangezogen.Due to the reduced cooling water outlet temperature on Partial condenser (3b) becomes the usable pressure drop the reduced condenser pressure in the partial condenser (3b) associated sub-turbine increases and the efficiency this sub-turbine can be improved and thus the Weighted overall efficiency of the system increased accordingly will. On the other hand, they are in the secondary cooling water system already heated cooling water flows still effective Heat exchange in the partial condensers behind the first partial capacitor used.
Aus Figur 3/3 ist ersichtlich, wie bei einer Anlage bei der weder ein externer Kühlwasserzusatz (11) noch ein Bypass (10) vorgesehen ist, der Kühlwasserteilstrom (7) durch das Nebenkühlwassersystem (4) auf die Teilkondensatoren (3b) und (3c) geführt wird.From Figure 3/3 it can be seen, as with a system where neither an external cooling water additive (11) nor a Bypass (10) is provided, the cooling water partial flow (7) through the secondary cooling water system (4) to the partial condensers (3b) and (3c) is performed.
Weitere Möglichkeiten durch Umfahrung, Verzweigung oder ggf. vorzeitige Auskoppelung aus dem Nebenkühlwassersystem (4) die Verhältnisse zu verbessern richten sich nach dem noch wirtschaftlichen baulichen Aufwand für die Vorrichtungen. Jedoch sind die prinzipiellen Varianten schon in Figur 1/3 konkret dargestellt.Further possibilities by bypassing, branching or, if necessary, early decoupling from the secondary cooling water system (4) The situation to improve depends on the still economical construction effort for the devices. However, the basic variants are already shown in Figure 1/3.
Grundsätzlich ist jedoch jede Leitungsanordnung, die der Lösung der gestellten Aufgabe dient, als spezielle Ausführungsart des erfindungsgemäßen Verfahrens zu sehen, und dies unabhängig von der Anzahl der hintereinander geschalteten Teilkondensatoren, der Art des Kühlwasserbezuges und der Größe der jeweiligen Kühlwasserteilströme.In principle, however, every line arrangement is the serves to solve the task, as a special embodiment to see the method according to the invention, and this regardless of the number of series Partial condensers, the type of cooling water supply and the size of the respective cooling water partial flows.
So macht die spezielle Ausführung gemäß Figur 3/3 deutlich, daß allein die Umfahrung des ersten Teilkondensators (3a) schon genügen kann, um die Kondensationsverhältnisse in den nachfolgenden Teilkondensatoren (3b) und ggf. (3c) zu verbessern, die Temperaturen der zu mischenden Teilströme anzugleichen und damit zusätzliche Wärmeaufnahme- und Wärmetransportkapazität für den notwendigen Wärmeabstrom zu sichern und zu nutzen.This is what the special design according to Figure 3/3 does clearly that only bypassing the first partial capacitor (3a) can already suffice to the condensation in the following partial capacitors (3b) and if necessary (3c) improve the temperatures of the mix Align partial flows and thus additional Heat absorption and heat transport capacity for the necessary Securing and using heat dissipation.
Derartige Maßnahmen werden jedoch auch durch das volumetrische Verhältnis der Kühlwasserteilströme untereinander und die in den einzelnen Wärmeaustauschsystemen erfolgenden Temperaturerhöhungen mitbestimmt. However, such measures are also made possible by the volumetric Relationship between the cooling water partial flows and those that take place in the individual heat exchange systems Co-determined temperature increases.
- 11
- KühlwasserpumpeCooling water pump
- 22nd
- Hauptkühlwasserleitung - Austrittsleitung der KühlwasserpumpeMain cooling water pipe - outlet pipe of the Cooling water pump
- 33rd
-
Kondensatoranlage 3a, 3b, 3c,
Teilkondensatoren der Hauptkondensatoranlage
Capacitor system - 44th
- NebenkühlwassersystemAuxiliary cooling water system
- 55
- DruckerhöhungspumpeBooster pump
- 66
- Kondensator der SpeisepumpenantriebsturbineCapacitor of the feed pump drive turbine
- 77
- Austrittsleitung NebenkühlwassersystemOutlet line secondary cooling water system
- 88th
- Austrittsleitung der HauptkondensatoranlageOutlet line of the main condenser system
- 99
-
Austrittsleitung am ersten Teilkondensator 3aOutlet line at the first
partial capacitor 3a - 1010th
- ggf. hinter der Druckerhöhungspumpe abgezweigter Kühlwasserteilstromif necessary branched behind the booster pump Cooling water partial flow
- 1111
- ggf. extern zugeführter Kühlwasserstromif necessary, externally supplied cooling water flow
Claims (8)
dadurch gekennzeichnet, daß
einzelnen oder allen aus den Teilkondensatoren austretenden Kühlwasserströmen vor Eintritt in den nachfolgenden Teilkondensator zusätzliches Kühlwasser beigemischt wird.Process for improving efficiency in steam power plants with a steam turbine system with partial turbines, the associated partial capacitors of which are combined in a main condenser system and connected in series on the cooling water side,
characterized in that
additional cooling water is mixed with individual or all cooling water flows emerging from the partial condensers before entering the subsequent partial condenser.
dadurch gekennzeichnet, daß
das beigemischte Kühlwasser möglichst vollständig aus dem Hauptkühlwasserstrom vor Eintritt in die Hauptkondensatoranlage abgezweigt wird.Method according to claim 1,
characterized in that
the admixed cooling water is diverted as completely as possible from the main cooling water flow before entering the main condenser system.
dadurch gekennzeichnet, daß
die vom Hauptkühlwasserstrom vor Eintritt in den ersten Teilkondensator abgezweigten Kühlwasserteilströme während der bypassartigen Umfahrung eines oder mehrerer Teilkondensatoren zumindest vereinzelt an einem Wärmeaustausch beteiligt sind.The method of claim 1 or 2,
characterized in that
the cooling water partial flows branched off from the main cooling water flow before entering the first partial condenser are at least occasionally involved in a heat exchange during the bypass-like bypassing of one or more partial condensers.
dadurch gekennzeichnet, daß
der Wärmeaustausch zumindest teilweise in den Wärmetauschern eines Nebenkühlwassersystem erfolgt. Method according to one of claims 1 to 3
characterized in that
the heat exchange takes place at least partially in the heat exchangers of a secondary cooling water system.
dadurch gekennzeichnet, daß
an einzelne oder alle die Teilkondensatoren 3a und ggf. 3b verlassende Kühlwasserleitungen vor Eintritt in den nachfolgenden Teilkondensator weitere, Kühlwasser zuführende Leitung angeschlossen sind.Device for carrying out the method according to one of claims 1 to 4,
characterized in that
further cooling water supply lines are connected to individual or all cooling water lines leaving partial condensers 3a and possibly 3b before entering the subsequent partial condenser.
dadurch gekennzeichnet, daß
die angeschlossenen, Kühlwasser zuführenden Leitungen alle oder teilweise an der die Kühlwasserpumpe verlassende Hauptkühlwasserleitung 2 vor Eintritt in die Hauptkondensatoranlage 3 abgezweigt werden.Device according to claim 5,
characterized in that
the connected lines supplying cooling water are branched off all or in part on the main cooling water line 2 leaving the cooling water pump before entering the main condenser system 3.
dadurch gekennzeichnet, daß
die an der Hauptkühlwasserleitung 2 vor Eintritt in die Hauptkondensatoranlage 3 abgezweigten, Kühlwasser zuführenden Leitungen 7 und 10 während der bypassartigen Umfahrung eines oder mehrerer Teilkondensatoren zumindest vereinzelt durch eines oder mehrere Wärmeaustauschsysteme 4 geführt werden.Device according to one of claims 5 to 6,
characterized in that
the lines 7 and 10 which branch off from the main cooling water line 2 before entering the main condenser system 3 and lead to cooling water during the bypass-like bypassing of one or more partial condensers are at least occasionally passed through one or more heat exchange systems 4.
dadurch gekennzeichnet, daß
ein Wärmeaustauschsystem 4 aus einem Nebenkühlwassersystem besteht.Device according to one of claims 5 to 7,
characterized in that
a heat exchange system 4 consists of a secondary cooling water system.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19626372 | 1996-07-02 | ||
| DE1996126372 DE19626372C1 (en) | 1996-07-02 | 1996-07-02 | Method and device for improving the efficiency in steam power plants |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0816641A2 true EP0816641A2 (en) | 1998-01-07 |
| EP0816641A3 EP0816641A3 (en) | 2000-05-24 |
Family
ID=7798568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP97110651A Withdrawn EP0816641A3 (en) | 1996-07-02 | 1997-06-30 | Process and system for improving efficiency of steam generators |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0816641A3 (en) |
| DE (1) | DE19626372C1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5800295B2 (en) * | 2011-08-19 | 2015-10-28 | 国立大学法人佐賀大学 | Steam power cycle system |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3841224A1 (en) * | 1988-12-07 | 1990-06-13 | Siemens Ag | Combined gas turbine/steam turbine power station |
| DE4424870A1 (en) * | 1994-07-14 | 1996-01-18 | Saarbergwerke Ag | Process for improving efficiency in thermal power plants with condensers connected in series on the cooling water side |
| DE19507167C1 (en) * | 1995-03-01 | 1996-05-02 | Siemens Ag | Double steam-turbine plant with condensers in common coolant circuit |
-
1996
- 1996-07-02 DE DE1996126372 patent/DE19626372C1/en not_active Expired - Lifetime
-
1997
- 1997-06-30 EP EP97110651A patent/EP0816641A3/en not_active Withdrawn
Non-Patent Citations (1)
| Title |
|---|
| None |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0816641A3 (en) | 2000-05-24 |
| DE19626372C1 (en) | 1997-11-27 |
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