DE1551168B1 - Steam condenser for steam turbines - Google Patents

Steam condenser for steam turbines

Info

Publication number
DE1551168B1
DE1551168B1 DE19661551168 DE1551168A DE1551168B1 DE 1551168 B1 DE1551168 B1 DE 1551168B1 DE 19661551168 DE19661551168 DE 19661551168 DE 1551168 A DE1551168 A DE 1551168A DE 1551168 B1 DE1551168 B1 DE 1551168B1
Authority
DE
Germany
Prior art keywords
steam
condenser
feed water
preheater
water preheater
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.)
Pending
Application number
DE19661551168
Other languages
German (de)
Inventor
Gustav Dipl Ing Baumann
Wolfgang Mattik
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BBC Brown Boveri France SA
Original Assignee
BBC Brown Boveri France SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by BBC Brown Boveri France SA filed Critical BBC Brown Boveri France SA
Publication of DE1551168B1 publication Critical patent/DE1551168B1/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28BSTEAM OR VAPOUR CONDENSERS
    • F28B1/00Condensers in which the steam or vapour is separate from the cooling medium by walls, e.g. surface condenser
    • F28B1/02Condensers in which the steam or vapour is separate from the cooling medium by walls, e.g. surface condenser using water or other liquid as the cooling medium
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01KSTEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K7/00Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating
    • F01K7/34Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being of extraction or non-condensing type; Use of steam for feed-water heating
    • F01K7/38Steam engine plants characterised by the use of specific types of engine; Plants or engines characterised by their use of special steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being of extraction or non-condensing type; Use of steam for feed-water heating the engines being of turbine type
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22STEAM GENERATION
    • F22DPREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
    • F22D1/00Feed-water heaters, i.e. economisers or like preheaters
    • F22D1/32Feed-water heaters, i.e. economisers or like preheaters arranged to be heated by steam, e.g. bled from turbines

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Description

Die Erfindung betrifft einen Dampfkondensator für Dampfturbinen mit mindestens einem im Kondensatorgehäuse angeordneten anzapfdampfbeheizten Speisewasservorwärmer.The invention relates to a steam condenser for steam turbines with at least one steam-heated feed water preheater arranged in the condenser housing.

Ein derartiger Dampfkondensator ist aus der deutschen Patentschrift 549 433 bekannt.Such a steam condenser is from the German patent 549 433 known.

Bei Dampfturbinenanlagen mit großer Einheitsleistung wirft dieAnordnung der Niederdruck-Speisewasservorwärmer verschiedene Probleme auf. Die Anzapfleitungen zwischen Dampfturbine und Speisewasservorwärmer sollen kurz gehalten werden, um Druckverluste und Anlagekosten klein zu halten. Die Führung der großen Anzapfleitungen bietet planungstechnische Schwierigkeiten und der zusätzliche Platzbedarf für die Rohrleitungen wird groß. Ferner sollen die Speisewasservorwärmer für Routinekontrollen während des Betriebes und gegebenenfalls notwendige Revisionsarbeiten verhältnismäßig leicht zugänglich sein.In the case of steam turbine systems with a large unit output, the arrangement throws the low pressure feed water preheater presents various problems. The tap lines between the steam turbine and the feedwater preheater should be kept short To keep pressure losses and system costs low. The management of the large tap lines offers planning difficulties and the additional space required for the Pipelines will be big. Furthermore, the feed water preheaters should be used for routine checks during operation and any necessary revision work proportionately be easily accessible.

Es liegt die Aufgabe vor, die anzapfdampfbeheizten Speisewasservorwärmer so anzuordnen, daß sich möglichst kurze Anzapffeitungen ergeben und weder das Turbinengehäuse vergrößert noch die Kellerhöhe verändert werden muß.The task at hand is to heat the feed water preheater that is heated by tapping steam to be arranged so that the tapping lines are as short as possible and neither the turbine housing increased or the basement height has to be changed.

Diese Aufgabe wird bei Dampfkondensatoren der eingangs angegebenen Art erfindungsgemäß dadurch gelöst, daß der Speisewasservorwärmer im Bereich der Kühlwasserrohre und mit diesen gleichgerichtet angeordnet ist.In the case of steam condensers, this task becomes the one specified at the beginning Type solved according to the invention in that the feedwater preheater in the area of Cooling water pipes and is arranged in the same direction with these.

Eine vorteilhafte Ausbildung ergibt sich dadurch, daß die Öffnung für die Anordnung des Speisewasservorwärmers ungefähr in der Rohrbodenebene der Kühlwasserrohre liegt. Die Temperatur des Anzapfdampfes liegt höher als die Dampftemperatur im Kondensator. Es ist daher zweckmäßig, die Speisewasservorwärmer gegenüber dem Dampfraum des Kondensators zu isolieren.An advantageous embodiment results from the fact that the opening for the arrangement of the feed water preheater approximately in the tube sheet level of the Cooling water pipes lies. The temperature of the extraction steam is higher than the steam temperature in the condenser. It is therefore advisable to place the feedwater preheater opposite the Isolate the vapor space of the condenser.

Die mit der Erfindung erzielten Vorteile liegen in den sehr kurzen, geraden, im wesentlichen senkrechten und normalerweise nicht aus dem Dampfraum des Kondensators hinausführenden Anzapfleitungen mit minimalem Druckverlust, wodurch der Abdampfstutzen um ein bis zwei Meter kürzer gebaut und die Kellerhöhe entsprechend verkleinert werden kann. Für das stirnseitige Ausziehen der Speisewasservorwärmer wird kein. zusätzlicher Raum beansprucht, da er bereits für den Auszug der Kühlwasserrohre des Kondensators vorgesehen sein muß. Die Dampfzuströmung zu den Kühlwasserrohren wird nicht verbaut und die Führung der Kondensatableitung aus den Speisewasservorwärmern wird äußerst kurz und damit wirtschaftlich. Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird im folgenden näher beschrieben. Es zeigt F i g. 1 einen Schnitt durch den Kondensator und die Speisewasservorwärmer senkrecht zu derenAchse nach Schnitt I-I in F i g. 2, F i g. 2 einen Axialschnitt durch einen Speisewasservorwärmer und den Kondensator nach Schnitt II-H in F i g. 1.The advantages achieved with the invention are in the very short, straight, essentially vertical and usually not out of the headspace of the Tap lines leading to the condenser with minimal pressure loss, which means the exhaust steam nozzle is one to two meters shorter and the basement height accordingly can be reduced in size. For pulling out the feed water preheater from the front will not. takes up additional space, as it is already used for pulling out the cooling water pipes of the capacitor must be provided. The steam inflow to the cooling water pipes is not installed and the condensate drainage from the feed water preheater becomes extremely short and therefore economical. An embodiment of the invention is shown in the drawing and is described in more detail below. It shows F i g. 1 shows a vertical section through the condenser and the feed water preheater to their axis according to section I-I in F i g. 2, fig. 2 shows an axial section through a Feed water preheater and the condenser according to section II-H in F i g. 1.

Die vom Mantel 1 umgebenen Kühlwasserrohre 2 des Kondensators sind in Teilbündel unterhalb des Abdampfstutzens 10 der Turbine angeordnet, die im Rohrboden 3 gehalten sind. Sie sind so angeordnet, daß im Dampfraum 4 des Kondensators freie Räume entstehen, in die die Speisewasservorwärmer 5 eingebaut sind, was zweckmäßigerweise derart erfolgt, daß ihre Achse parallel zur Kondensatorachse und somit auch die Vorwärmerrohre parallel zu den Kühlwasserrohren des Kondensators zu liegen kommen. Dadurch wird der erforderliche freie Raum sehr klein gehalten und die Speisewasservorwärmer können stirnseitig ausgezogen werden. Am einfachsten ist es, die Speisewasservorwärmer in einer öffnung des Rohrbodens 3 anzuflanschen. Vorteilhaft ist es, die Wasserkammer 7 des Kondensators zu unterteilen und den Mantel 1 an jenen Stellen, an denen die Speisewasservorwärmer eingebaut werden, so weit einzuziehen, daß der Rohrboden 3 freigelegt und für den Einbau zugänglich ist. Die Wasserkammern 6 der Speisewasservorwärmer liegen dadurch in einem Luftraum 8 und sind leicht zugänglich. Der Heizdampf wird auf kürzestem Weg durch die Anzapfleitungen 9 den Speisewasservorwärmern zugeführt.The cooling water pipes 2 of the condenser surrounded by the jacket 1 are arranged in partial bundles below the exhaust steam nozzle 10 of the turbine, which is in the tube sheet 3 are held. They are arranged so that free in the vapor space 4 of the condenser Spaces are created in which the feedwater preheater 5 is installed, which is expedient takes place in such a way that its axis is parallel to the capacitor axis and thus also the Preheater pipes come to lie parallel to the cooling water pipes of the condenser. As a result, the required free space is kept very small and the feed water preheater can be pulled out at the front. It is easiest to use the feed water preheater to be flanged in an opening in the tube sheet 3. It is advantageous to use the water chamber 7 to subdivide the capacitor and the jacket 1 at those points where the Feed water preheaters are installed, so far that the tube sheet 3 exposed and accessible for installation. The water chambers 6 of the feed water preheater thereby lie in an air space 8 and are easily accessible. The heating steam is fed to the feed water preheaters by the shortest route through the tap lines 9.

Claims (3)

Patentansprüche: 1. Dampfkondensator für Dampfturbinen mit mindestens einem im Kondensatorgehäuse angeordneten anzapfdampfbeheizten Speisewasservorwärmer, dadurch gekennzeichnet, daß der Speisewasservorwärmer (5) im Bereich der Kühlwasserrohre (2) und mit diesen gleichgerichtet angeordnet ist. Claims: 1. Steam condenser for steam turbines with at least a steam-heated feed water preheater arranged in the condenser housing, characterized in that the feed water preheater (5) is in the area of the cooling water pipes (2) and is arranged in the same direction as these. 2. Dampfkondensator nach Anspruch 1, dadurch gekennzeichnet, daß die Öffnung für die Anordnung des Speisewasservorwärmers (5) ungefähr in der Rohrbodenebene (3) der Kühlwasserrohre (2) liegt. 2. Steam condenser according to claim 1, characterized in that the opening for the arrangement of the feed water preheater (5) lies approximately in the tube sheet level (3) of the cooling water pipes (2). 3. Dampfkondensator nach den Ansprüchen 1 oder 2, dadurch gekennzeichnet, daß der Speisewasservorwärmer (5) gegenüber dem Dampfraum (4) des Kondensators wärmeisoliert ist.3. Steam condenser according to claims 1 or 2, characterized in that the feed water preheater (5) is thermally insulated from the vapor space (4) of the condenser.
DE19661551168 1966-07-01 1966-08-10 Steam condenser for steam turbines Pending DE1551168B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH960766A CH440351A (en) 1966-07-01 1966-07-01 Condensing steam turbine plant

Publications (1)

Publication Number Publication Date
DE1551168B1 true DE1551168B1 (en) 1970-09-24

Family

ID=4353746

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19661551168 Pending DE1551168B1 (en) 1966-07-01 1966-08-10 Steam condenser for steam turbines

Country Status (2)

Country Link
CH (1) CH440351A (en)
DE (1) DE1551168B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0962734A2 (en) * 1998-06-02 1999-12-08 Electric Boat Corporation Heat exchanger

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE549433C (en) * 1929-04-17 1932-04-27 Asea Ab Condensing steam turbine with two condensers and a preheater
US1882699A (en) * 1931-02-28 1932-10-18 Westinghouse Electric & Mfg Co Turbine and condenser unit

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE549433C (en) * 1929-04-17 1932-04-27 Asea Ab Condensing steam turbine with two condensers and a preheater
US1882699A (en) * 1931-02-28 1932-10-18 Westinghouse Electric & Mfg Co Turbine and condenser unit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0962734A2 (en) * 1998-06-02 1999-12-08 Electric Boat Corporation Heat exchanger
EP0962734A3 (en) * 1998-06-02 2000-08-16 Electric Boat Corporation Heat exchanger

Also Published As

Publication number Publication date
CH440351A (en) 1967-07-31

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