EP1039255A1 - Steam power plant - Google Patents
Steam power plant Download PDFInfo
- Publication number
- EP1039255A1 EP1039255A1 EP00105239A EP00105239A EP1039255A1 EP 1039255 A1 EP1039255 A1 EP 1039255A1 EP 00105239 A EP00105239 A EP 00105239A EP 00105239 A EP00105239 A EP 00105239A EP 1039255 A1 EP1039255 A1 EP 1039255A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- condenser
- power plant
- steam power
- cooling water
- main cooling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000498 cooling water Substances 0.000 claims abstract description 7
- 239000003990 capacitor Substances 0.000 claims description 8
- 238000010276 construction Methods 0.000 description 5
- 230000003111 delayed effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28B—STEAM OR VAPOUR CONDENSERS
- F28B1/00—Condensers in which the steam or vapour is separate from the cooling medium by walls, e.g. surface condenser
- F28B1/02—Condensers 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
Definitions
- the invention relates to a steam power plant according to the preamble of claim 1.
- Such a steam power plant is known from DE 196 42 100 A1.
- the order of the capacitor inside the machine house leads to widening of the nacelle by several meters, resulting in a corresponding enlargement the span and the installation height of the nacelle crane. For cost reasons the widening is carried out as little as possible, so that an optimization the construction of the condenser neck to contribute to an improvement in efficiency of the power plant is restricted.
- With arrangement of turbine and Condenser on the same foundation is a return flow of the condensate to low pressure turbines not secured and a higher head of the main cooling water pumps expected.
- the condensate storage of the capacitor can only be done by one Special construction for the purpose of drainage of those in vacuum Components can be used directly.
- DE 196 42 100A1 is the center line of the capacitor arranged above the turbine center line. This creates an unfavorable flow behavior and a higher flow deflection Pressure loss.
- An additional drainage device for the low-pressure turbine housing is required, which with an increase in the height of the upper part of the Low pressure turbine housing and thus a corresponding increase in the nacelle goes along.
- the task is to specify a steam power plant of the type mentioned at the beginning, which leads to a nacelle that is reduced in height and width and still brings no restriction in the design of the condenser neck.
- the condenser with its inlets and outlets for the main cooling water is then in an extension of a nacelle arranged.
- the construction volume of the machine house can be reduced.
- the length of the condenser neck can be freely due to its arrangement in one expandable extension, regardless of the nacelle height and width become.
- Over the entire cross-section of the outflow of the condenser neck is an even inflow field ensured.
- the arrangement ensures an optimal definition of the diffuser angle ⁇ , which influences the flow behavior in the condenser neck. In such a way optimally designed condenser neck, the steam flow is low loss to a lower speed with simultaneous pressure recovery delayed.
- the Condenser neck has a predeterminable gradient in the direction of the condenser, the The condenser centerline is located below the turbine centerline.
- Figures 1 and 2 show a turbo group 1 of a steam power plant, not shown, which are supported on a foundation plate 2 insulated from the nacelle 3 is.
- An extension 4 borders the machine house 3. From the machine house and extension only the supporting structure is shown, to take a look at the arrangement of those inside Components.
- the cultivation can depend on the climatic conditions as a complete enclosure, only with a roof or in open-air construction be trained.
- the machine house is in the longitudinal direction 3 aligned the turbo group 1 and fixed relative to the nacelle.
- An exhaust steam flow leaving the low-pressure part of the turbine 10 via an outlet housing 5 passes through a condenser neck 6 acting as a diffuser to an im Attachment 4 arranged condenser 7.
- An inlet and outlet 8, 9 for the main cooling water is connected to pipes, not shown.
- the condenser neck bridges the distance between the condenser 7 and the outlet housing 5 and penetrates the wall 11 between the extension 4 and the nacelle 3. How 2, the condenser neck 6 points in the direction Condenser 7 acting gradient, which is so large that a condensate return to the turbine is safely avoided.
- the center line 13 of the capacitor 7 is located below the turbine centerline 12 to e.g. B. a reflux of the condensate to ensure the low pressure turbines. Due to the lateral arrangement of the Capacitor 7 results in a low construction of the turbo group and thus also a correspondingly lower engine house. Furthermore, an optimal one Definition of the diffuser angle ⁇ , which is the flow behavior in the condenser neck influenced, guaranteed. To improve the efficiency of the steam power plant can be the length of the condenser neck for optimal design of the condenser diffuser can be easily changed.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Details Of Heat-Exchange And Heat-Transfer (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Abstract
Description
Die Erfindung betrifft ein Dampfkraftwerk nach dem Oberbegriff des Anspruchs 1.The invention relates to a steam power plant according to the preamble of
Ein derartiges Dampfkraftwerk ist aus DE 196 42 100 A1 bekannt. Dort ist der Kondensator seitlich neben der Turbine auf dem Turbinenfundament angeordnet und befindet sich somit offenbar innerhalb des dort nicht dargestellten Maschinenhauses. Die Anordnung des Kondensators innerhalb des Maschinenhauses führt zu einer Verbreiterung des Maschinenhauses um mehrere Meter, was zu einer entsprechenden Vergrößerung der Spannweite und der Einbauhöhe des Maschinenhauskranes führt. Aus Kostengründen wird die Verbreiterung so gering wie möglich ausgeführt, sodaß eine Optimierung der Konstruktion des Kondensatorhalses zum Beitrag einer Wirkungsgradverbesserung des Kraftwerkes eingeschränkt ist. Bei Anordnung von Turbine und Kondensator auf gleichem Fundament, ist ein Rückfluß des Kondensats zu Niederdruckturbinen nicht gesichert und eine größere Förderhöhe der Hauptkühlwasserpumpen zu erwarten. Ferner kann der Kondensatspeicher des Kondensators nur durch eine Sonderkonstruktion zum Zwecke der Entwässerung der im Vakuumzustand befindlichen Komponenten direkt eingesetzt werden. Nach der DE 196 42 100A1 ist die Mittellinie des Kondensators oberhalb der Turbinenmittellinie angeordnet. Dabei entsteht durch die Abdampfumlenkung ein ungünstiges Strömungsverhalten und ein höherer Druckverlust. Eine zusätzliche Entwässerungseinrichtung des Niederdruckturbinengehäuses ist erforderlich, was mit einer Vergrößerung der Bauhöhe des Oberteils des Niederdruckturbinengehäuses und damit einer entsprechenden Erhöhung des Maschinenhauses einhergeht.Such a steam power plant is known from DE 196 42 100 A1. There is the capacitor arranged and located laterally next to the turbine on the turbine foundation thus apparently within the nacelle not shown there. The order of the capacitor inside the machine house leads to widening of the nacelle by several meters, resulting in a corresponding enlargement the span and the installation height of the nacelle crane. For cost reasons the widening is carried out as little as possible, so that an optimization the construction of the condenser neck to contribute to an improvement in efficiency of the power plant is restricted. With arrangement of turbine and Condenser on the same foundation is a return flow of the condensate to low pressure turbines not secured and a higher head of the main cooling water pumps expected. Furthermore, the condensate storage of the capacitor can only be done by one Special construction for the purpose of drainage of those in vacuum Components can be used directly. According to DE 196 42 100A1 is the center line of the capacitor arranged above the turbine center line. This creates an unfavorable flow behavior and a higher flow deflection Pressure loss. An additional drainage device for the low-pressure turbine housing is required, which with an increase in the height of the upper part of the Low pressure turbine housing and thus a corresponding increase in the nacelle goes along.
Es stellt sich die Aufgabe ein Dampfkraftwerk der eingangs genannten Art anzugeben, das zu einem in seiner Höhe und Breite reduzierten Maschinenhaus führt und trotzdem keine Beschränkung in der Ausgestaltung des Kondensatorhalses bringt.The task is to specify a steam power plant of the type mentioned at the beginning, which leads to a nacelle that is reduced in height and width and still brings no restriction in the design of the condenser neck.
Gelöst wird diese Aufgabe erfindungsgemäß durch die im Anspruch 1 angegebenen
Merkmale.This object is achieved according to the invention by those specified in
Danach ist der Kondensator mit seinen Ein- und Auslassen für das Hauptkühlwasser in einem Anbau eines Maschinenhauses angeordnet.The condenser with its inlets and outlets for the main cooling water is then in an extension of a nacelle arranged.
Mit dieser Anordnung gelingt eine Reduzierung des Bauvolumens des Maschinenhauses. Die Länge des Kondensatorhalses kann auf Grund seiner Anordnung in einem frei ausdehnbaren Anbau unabhängig von der Maschinenhaushöhe und -breite frei gewählt werden. Damit ist eine optimale Auslegung des Kondensatordiffusors zur Verbesserung des Wirkungsgrades des Dampfkraftwerkes gewährleistet. Über dem gesamten Ausströmungsquerschnitt des Kondensatorhalses ist ein gleichmäßiges Zuströmungsfeld sichergestellt. Die Anordnung gewährleistet eine optimale Festlegung des Diffusorwinkels λ, der das Strömungsverhalten im Kondensatorhals beeinflußt. In einem derart optimal ausgelegten Kondensatorhals wird die Dampfströmung verlustarm auf eine niedrigere Geschwindigkeit mit gleichzeitigem Druckrückgewinn verzögert. With this arrangement, the construction volume of the machine house can be reduced. The length of the condenser neck can be freely due to its arrangement in one expandable extension, regardless of the nacelle height and width become. This is an optimal design of the condenser diffuser for improvement guaranteed the efficiency of the steam power plant. Over the entire cross-section of the outflow of the condenser neck is an even inflow field ensured. The arrangement ensures an optimal definition of the diffuser angle λ, which influences the flow behavior in the condenser neck. In such a way optimally designed condenser neck, the steam flow is low loss to a lower speed with simultaneous pressure recovery delayed.
Um einen Kondensatrücklauf vom Kondensator zur Turbine zu verhindern und ein ungünstiges Strömungsverhalten durch die Abdampfumlenkung zu vermeiden, weist der Kondensatorhals ein vorgebbares Gefälle in Richtung Kondensator auf, wobei sich die Mittellinie des Kondensators unterhalb der Turbinenmittellinie befindet.To prevent a condensate return from the condenser to the turbine and an unfavorable one To avoid flow behavior by the exhaust steam deflection, the Condenser neck has a predeterminable gradient in the direction of the condenser, the The condenser centerline is located below the turbine centerline.
Anhand eines Ausführungsbeispieles und der schematischen Figuren 1 und 2 wird die erfindungsgemäße Anordnung beschrieben.Using an exemplary embodiment and the schematic figures 1 and 2, the Arrangement according to the invention described.
Dabei zeigt die
- Fig.1
- eine Ansicht von oben auf die wichtigsten Komponenten eines in einem Maschinenhaus und einem Anbau angeordneten Dampfkraftwerkes und
- Fig.2
- eine Ansicht in Pfeilrichtung II der Fig. 1 mit einem Querschnitt im Bereich des Kondensators.
- Fig. 1
- a view from above of the most important components of a steam power plant arranged in a machine house and an extension and
- Fig. 2
- a view in the direction of arrow II of FIG. 1 with a cross section in the region of the capacitor.
Die Figuren 1 und 2 zeigen eine Turbogruppe 1 eines nicht weiter dargestellten Dampfkraftwerkes,
die auf einer vom Maschinenhaus 3 isolierten Fundamentplatte 2 abgestützt
ist. Ein Anbau 4 grenzt an das Maschinenhaus 3. Von Maschinenhaus und Anbau
ist nur die Tragstruktur dargestellt, um den Blick auf die Anordnung der darin befindlichen
Komponenten zu ermöglichen. Der Anbau kann je nach Klimabedingungen
als vollständige Einhausung, nur mit einem Dach versehen oder in Freiluftbauweise
ausgebildet sein.Figures 1 and 2 show a
Wie insbesondere aus der Fig 1 ersichtlich ist, ist in Längserstreckung des Maschinenhauses
3 die Turbogruppe 1 ausgerichtet und relativ zum Maschinenhaus festgelegt.
Ein den Niederdruckteil der Turbine 10 über ein Auslaßgehäuse 5 verlassender Abdampfstrom
gelangt über einen als Diffusor wirkenden Kondensatorhals 6 zu einem im
Anbau 4 angeordneten Kondensator 7. Ein Ein-und Auslaß 8, 9 für das Hauptkühlwasser
ist mit nicht dargestellten Rohrleitungen verbunden. Der Kondensatorhals überbrückt
den Abstand zwischen dem Kondensator 7 und dem Auslassgehäuse 5 und
durchdringt dabei die Wand 11 zwischen dem Anbau 4 und dem Maschinenhaus 3. Wie
insbesondere aus der Fig 2 ersichtlich, weist der Kondensatorhals 6 ein in Richtung
Kondensator 7 wirkendes Gefälle auf, das so groß bemessen ist, daß ein Kondensatrücklauf
zur Turbine sicher vermieden wird. Die Mittellinie 13 des Kondensators 7 befindet
sich unterhalb der Turbinenmittellinie 12, um z. B. einen Rückfluß des Kondensats
zu den Niederdruckturbinen sicherzustellen. Durch die seitliche Anordnung des
Kondensators 7 ergibt sich eine niedrige Bauweise der Turbogruppe und somit auch
ein entsprechend niedriger ausgeführtes Maschinenhaus. Ferner ist eine optimale
Festlegung des Diffusorwinkels λ, der das Strömungsverhalten im Kondensatorhals
beinflußt, gewährleistet. Zur Verbesserung des Wirkungsgrades des Dampfkraftwerkes
kann die Länge des Kondensatorhalses zur optimalen Auslegung des Kondensatordiffusors
problemlos verändert werden.As can be seen in particular from FIG. 1, the machine house is in the
Claims (2)
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19912415 | 1999-03-19 | ||
| DE19912415 | 1999-03-19 | ||
| DE10005727A DE10005727A1 (en) | 1999-03-19 | 2000-02-09 | Steam power plant |
| DE10005727 | 2000-02-09 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1039255A1 true EP1039255A1 (en) | 2000-09-27 |
| EP1039255B1 EP1039255B1 (en) | 2003-08-27 |
Family
ID=26004252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP00105239A Expired - Lifetime EP1039255B1 (en) | 1999-03-19 | 2000-03-13 | Steam power plant |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US6230493B1 (en) |
| EP (1) | EP1039255B1 (en) |
| JP (1) | JP2000320307A (en) |
| CN (1) | CN1211567C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1004751B1 (en) * | 1998-11-25 | 2003-02-26 | Alstom Power Generation AG | Steam power plant in open air arrangement |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3973404A (en) * | 1974-01-23 | 1976-08-10 | Hitachi, Ltd. | Low pressure turbine installation |
| JPS63282693A (en) * | 1987-05-06 | 1988-11-18 | Toshiba Corp | Building for turbine |
| US4866941A (en) * | 1988-07-05 | 1989-09-19 | Westinghouse Electric Corp. | Single condenser arrangement for side exhaust turbine |
| JPH05196777A (en) * | 1992-01-17 | 1993-08-06 | Hitachi Ltd | Power plant and constructing method for power plant |
| DE19642100A1 (en) | 1996-10-12 | 1998-04-16 | Asea Brown Boveri | Steam condenser |
| WO1998015720A1 (en) * | 1996-10-08 | 1998-04-16 | Siemens Aktiengesellschaft | Steam turbine system |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3939356A (en) * | 1974-07-24 | 1976-02-17 | General Public Utilities Corporation | Hydro-air storage electrical generation system |
| US3953971A (en) * | 1975-01-02 | 1976-05-04 | Parker Sidney A | Power generation arrangement |
| US4038821A (en) * | 1976-02-12 | 1977-08-02 | Black Jerimiah B | Fluid current motor |
| US4464080A (en) * | 1979-08-09 | 1984-08-07 | Gorlov Alexander M | High volume tidal or current flow harnessing system |
| DE19640100B4 (en) | 1996-09-28 | 2005-07-14 | Sauer-Danfoss Holding Aps | Hydraulic system |
-
2000
- 2000-03-13 EP EP00105239A patent/EP1039255B1/en not_active Expired - Lifetime
- 2000-03-17 JP JP2000076856A patent/JP2000320307A/en active Pending
- 2000-03-18 CN CN00108317.1A patent/CN1211567C/en not_active Expired - Fee Related
- 2000-03-20 US US09/531,206 patent/US6230493B1/en not_active Expired - Lifetime
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3973404A (en) * | 1974-01-23 | 1976-08-10 | Hitachi, Ltd. | Low pressure turbine installation |
| JPS63282693A (en) * | 1987-05-06 | 1988-11-18 | Toshiba Corp | Building for turbine |
| US4866941A (en) * | 1988-07-05 | 1989-09-19 | Westinghouse Electric Corp. | Single condenser arrangement for side exhaust turbine |
| JPH05196777A (en) * | 1992-01-17 | 1993-08-06 | Hitachi Ltd | Power plant and constructing method for power plant |
| WO1998015720A1 (en) * | 1996-10-08 | 1998-04-16 | Siemens Aktiengesellschaft | Steam turbine system |
| DE19642100A1 (en) | 1996-10-12 | 1998-04-16 | Asea Brown Boveri | Steam condenser |
Non-Patent Citations (2)
| Title |
|---|
| PATENT ABSTRACTS OF JAPAN vol. 013, no. 102 (P - 841) 10 March 1989 (1989-03-10) * |
| PATENT ABSTRACTS OF JAPAN vol. 017, no. 619 (P - 1644) 15 November 1993 (1993-11-15) * |
Also Published As
| Publication number | Publication date |
|---|---|
| US6230493B1 (en) | 2001-05-15 |
| JP2000320307A (en) | 2000-11-21 |
| EP1039255B1 (en) | 2003-08-27 |
| CN1211567C (en) | 2005-07-20 |
| CN1273355A (en) | 2000-11-15 |
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