DE2458437C2 - FEED WATER PREHEATER WITH TWO STEAM ROOMS - Google Patents
FEED WATER PREHEATER WITH TWO STEAM ROOMSInfo
- Publication number
- DE2458437C2 DE2458437C2 DE19742458437 DE2458437A DE2458437C2 DE 2458437 C2 DE2458437 C2 DE 2458437C2 DE 19742458437 DE19742458437 DE 19742458437 DE 2458437 A DE2458437 A DE 2458437A DE 2458437 C2 DE2458437 C2 DE 2458437C2
- Authority
- DE
- Germany
- Prior art keywords
- steam
- preheater
- feed water
- pipes
- housing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/0066—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22D—PREHEATING, 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
- F22D1/00—Feed-water heaters, i.e. economisers or like preheaters
- F22D1/32—Feed-water heaters, i.e. economisers or like preheaters arranged to be heated by steam, e.g. bled from turbines
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/005—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for only one medium being tubes having bent portions or being assembled from bent tubes or being tubes having a toroidal configuration
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/0066—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids
- F28D7/0075—Multi-circuit heat-exchangers, e.g. integrating different heat exchange sections in the same unit or heat-exchangers for more than two fluids with particular circuits for the same heat exchange medium, e.g. with the same heat exchange medium flowing through sections having different heat exchange capacities or for heating or cooling the same heat exchange medium at different temperatures
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/007—Auxiliary supports for elements
- F28F9/013—Auxiliary supports for elements for tubes or tube-assemblies
- F28F9/0131—Auxiliary supports for elements for tubes or tube-assemblies formed by plates
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/26—Arrangements for connecting different sections of heat-exchange elements, e.g. of radiators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/22—Arrangements for directing heat-exchange media into successive compartments, e.g. arrangements of guide plates
- F28F2009/222—Particular guide plates, baffles or deflectors, e.g. having particular orientation relative to an elongated casing or conduit
- F28F2009/224—Longitudinal partitions
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Description
Die Erfindung betrifft einen Speisewasservorwärmer zum zweistufigen Erwärmen von Speisewasser durch kondensierenden Entnahmedampf, der im Inneren eines Turbinenabdampfgehäuses waagerecht angeordnet ist und einen inneren, von einem Dampfbehälter begrenzten Dampfraum und einen äußeren, vom Vorwärmergehäuse begrenzten Dampfraum zum Zuführen von Dampf unterschiedlichen Druckes aufweist, und bei dem eine Einlaß- und eine Auslaßkammer für das Speisewasser vorgesehen sind, während die vom Speisewasser durchflossenen, in beiden Dampfräumen angeordneten Rohre in die Einlaß- bzw. in die Auslaßkammer münden und über eine gemeinsame Wasserkammer miteinander verbunden sind. SSThe invention relates to a feed water preheater for two-stage heating of feed water by condensing extraction steam, which is arranged horizontally inside a turbine exhaust steam housing and has an inner steam space bounded by a steam container and an outer steam space bounded by the preheater housing for supplying steam of different pressure, and in which an inlet and an outlet chamber are provided for the feed water, while the pipes through which the feed water flows and are arranged in both steam chambers open into the inlet and outlet chambers and are connected to one another via a common water chamber. SS
Ein derartiger Speisewasservorwärmer ist aus der DT-AS 16 26 210 bekannt. Bei dieser Bauweise sind U-förmig gebogene Rohre in einer Rohrplatte befestigt, so daß der Vorwärmer in vier Wegen vom Speisewasser durchströmt wird.Such a feed water preheater is known from DT-AS 16 26 210. With this design are U-shaped bent tubes fixed in a tube plate, so that the preheater in four ways from the feed water is flowed through.
Bei Turbosätzen großer Leistung, insbesondere für Leichtwasser-Kernkraftwerke hat sich herausgestellt, daß der zur Verfügung stehende Einbauplatz in senkrechter Richtung nicht ausreicht, einen Vorwärmer mit vier Speisewasserwegen unterzubringen. Eine Vergrößerung des Gebäudes ist aufwendig und eine Verringerung des Durchmessers des Speisewasservorwärmers führt zu überhöhten Speisewassergeschwindigkeiten.In the case of high-output turbo sets, in particular for light-water nuclear power plants, it has been found that the available installation space in the vertical direction is not sufficient, a preheater with to accommodate four feed water routes. It is expensive to enlarge the building and to reduce it the diameter of the feed water preheater leads to excessive feed water speeds.
Aufgabe der Erfindung ist es daher, den bekannten Vorwärmer so abzuändern, daß er mit niedriger Bauhöhe in den Abdampfstutzen der Turbine eingebaut werden kann.The object of the invention is therefore to modify the known preheater so that it has a low overall height can be installed in the exhaust steam nozzle of the turbine.
Diese Aufgabe wird dadurch gelöst, daß die Wasserkammer als im Inneren des Verwärmergehäuses liegende Umkehrkammer ausgebildet ist, welche den Dampfbehälter innen abschließt und in welche die Röhrt im Vorwärmergehäuse münden und aus welcher die Rohre im Dampfbehälter wegführen.This object is achieved in that the water chamber is located in the interior of the warmer housing Reversal chamber is formed, which closes the steam container inside and into which the tubes open into the preheater housing and from which the pipes in the steam tank lead away.
Dadurch wird erreicht, daß ein zweistufiger Speisewasservorwärmer im Abdampfstützen der Turbine eingebaut werden kann, der nur zwei Durchflußwege für das Speisewasser hat und damit bei geringen Speisewassergeschwindigkeiten mi; einem relativ geringen Außendurchmesser auskommt.This ensures that a two-stage feed water preheater is installed in the exhaust steam support of the turbine which has only two flow paths for the feed water and thus at low feed water speeds mi; a relatively small outer diameter gets by.
Eine gleichmäßige Belastung der sich unterschiedlich dehnenden Rohre in den beiden Dampfräumen wird dadurch erreicht, daß bei zylindrischem Dampfbehälter die Flächenschwerpunkte der Rohre im Vorwärmergehäuse und der Rohre im Dampfbehälter auf der Mittenachse des Dampfbehälters liegen.An even load on the differently expanding pipes in the two steam rooms is achieved by the fact that in the case of a cylindrical steam tank, the centers of area of the pipes in the preheater housing and the tubes in the steam container lie on the central axis of the steam container.
Bei halbzylindrischem Dampfbehälter wird diese gleichmäßige Belastung dadurch erhalten, daß die Rohre im Vorwärmergehäuse ausgebogen und im Vorwärmergehäuse Zuganker zwischen den Rohrplatten der Einlaßkammer bzw. der Umkehrkammer befestigt sind.In the case of a semi-cylindrical steam tank, this uniform load is obtained by the pipes bent out in the preheater housing and tie rods between the tube plates of the preheater housing Inlet chamber and the reversal chamber are attached.
Die Ausbiegung der Rohre kann in beliebiger Richtung senkrecht zur Rohrmittelachse erfolgen.The tubes can be bent in any direction take place perpendicular to the pipe center axis.
Die Erfindung ist an Ausführungsbeispielen näher erläutert. The invention is explained in more detail using exemplary embodiments.
In F t g. 1 ist ein Längsschnitt durch einen Speisewasservorwärmer dargestellt.In F t g. 1 is a longitudinal section through a feed water preheater shown.
Das Speisewasser tritt in Pfeilrichtung in eine Einlaßkammer 1 ein, fließt durch die Rohre 2 und in Pfeilnchtung innerhalb einer Umkehrkammer 3 weiter durch die Rohre 4 und verläßt den Vorwärmer in Pfeilrichtung durch eine Auslaßkammer 5. Der Turbinendampf der unteren Entnahme tritt durch einen Stutzen 6> in den Vorwärmer ein und kondensiert an den Rohren 2. Das Kondensat verläßt den Vorwärmer durch einen Stutzen 7. Der Turbinendampf der nächst höheren Entnahme tritt durch einen Stutzen 8 in den Vorwärmer ein und kondensiert an den Rohren 4. Das Kondersat verläßt den Vorwärmer durch einen Stutzen 9. Der Dampfbehälter 11 dieses Entnahmedampfes w:rd durch eine Mitteltrennwand 11a und einen inne/en Dampfmantel üb begrenzt. Die Rohre 4 sind durch Rohrhaltebleche 10 gehalten, die an der Mitteltrennwand I la befestigt sind.The feed water enters an inlet chamber 1 in the direction of the arrow, flows through the pipes 2 and in the direction of the arrow within a reversing chamber 3 through the pipes 4 and leaves the preheater in the direction of the arrow through an outlet chamber 5. The turbine steam from the lower outlet passes through a nozzle 6> into the preheater and condenses on the pipes 2. The condensate leaves the preheater through a nozzle 7. The turbine steam from the next higher withdrawal enters the preheater through a nozzle 8 and condenses on the pipes 4. The condensate leaves the preheater through a spigot 9. The steam tank 11 w this extraction steam: around by a center partition 11a and a hold / s steam jacket üb limited. The tubes 4 are held by tube holding plates 10 which are attached to the central partition wall 11a.
Die Rohre 2 im unteren Teil des VorwUrmergehäuses 12 sind in der Nähe der Rohrplatten durch Rohrhaltebleche 13 abgestützt, die ebenfalls an der Mitteltrennwand 11a befestigt sind. Die übrigen Rohrhaltebleche 14 im Bereich der Ausbiegung der Rohre 2 sind an einer Tragkonstruktion 15 befestigt, die der Biegelinie der Rohre 2 folgen kann und verschiebbar mit der Mitteltrennwand 11a verbunden ist.The pipes 2 in the lower part of the VorwUrmergehäuses 12 are supported in the vicinity of the pipe plates by pipe holding plates 13, which are also attached to the central partition 11a . The remaining tube holding plates 14 in the area of the bend of the tubes 2 are attached to a support structure 15 which can follow the bending line of the tubes 2 and is connected to the central partition 11a in a displaceable manner.
Zur Erzielung der gewünschten Ausbiegung der Rohre 2 wird im Punkt 16 eine Kraft ausgeübt, die im Kaltzustand bei der Montage vor der Befestigung der Rohrenden in den Rohrplatten 17, 21 eine entsprechende Verlagerung der Rohrhaltebleche 14 hervorruft. Dann werden die Rohre 2 in den Rohrplatten befestigt. Danach wird der Punkt 16 entlastet.To achieve the desired deflection of the tubes 2, a force is exerted at point 16, which in the Cold state during assembly before fastening the pipe ends in the pipe plates 17, 21 a corresponding Displacement of the pipe retaining plate 14 causes. Then the tubes 2 are fastened in the tube plates. Then point 16 is relieved.
Das Vorwärmergehäuse 12 wird mit den Wänden 19 des Turbinenabdampfstutzens, in welchem der Dampf in Pfeilrichtung 18 strömt, fest und dicht verbunden.The preheater housing 12 is with the walls 19 of the Turbinenabdampfstutzens, in which the steam flows in the direction of arrow 18, firmly and tightly connected.
F i g. 2 zeigt die Anordnung des Rohrplanes der Rohre 2, die ihren Hei2dampf durch die Stutzen 6 erhalten und die des Rohrplanes der Rohre 4. die vom Heizdampf, der durch den Stutzen 8 in den Dampfbehälter Il einströmt, beaufschlagt werden. Die Anordnung der Rohre 2 und 4 ist so gestaltet, daß du; Flächenschwerpunkte auf dein Schniupunki der Achsen A'-.V und V- V liegen. Ein Kompensator 20 gleicht die Relativdehnung /wischen dem Dampfmantel lli>und dem Vorwärmergehäuse 12 aus.F i g. 2 shows the arrangement of the pipe plan of the pipes 2, which receive their hot steam through the nozzle 6 and that of the pipe plan of the pipes 4. that of the heating steam flowing through the nozzle 8 into the steam tank Il flows in, are acted upon. The arrangement of the Pipes 2 and 4 is designed so that you; Centers of area on your Schniupunki of axes A '-. V and V- V lie. A compensator 20 compensates for the relative expansion / wipe the steam jacket lli> and the preheater housing 12 off.
F i g. 3 zeigt eine Anordnung der Rohrsysteme ähnlich der F i g. 1. Hierbei dienen Zuganker 22 zur Aufnahme derjenigen Kräfte, die ein Kippmoment an der freien Rohrplatte 17 hervorrufen würden.F i g. 3 shows an arrangement of the pipe systems similar to FIG. 1. Tension rods 22 are used here for receiving those forces that would cause a tilting moment on the free tube plate 17.
Hierzu 2 Blatt ZeichnungenFor this purpose 2 sheets of drawings
Claims (3)
Priority Applications (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19742458437 DE2458437C2 (en) | 1974-12-10 | 1974-12-10 | FEED WATER PREHEATER WITH TWO STEAM ROOMS |
NL7512156A NL7512156A (en) | 1974-12-10 | 1975-10-16 | FEED WATER PREHEATER IN A TURBINE CONNECTION FOR FINISHED STEAM. |
SE7512825A SE7512825L (en) | 1974-12-10 | 1975-11-14 | FEED WATER PREHEATER IN SEWER SUPPLY TURBINES |
IT29897/75A IT1051789B (en) | 1974-12-10 | 1975-12-02 | SUPPLY WATER PREHEATER IN THE VAPOR DISCHARGE OF A TURBINE |
BE162524A BE836375A (en) | 1974-12-10 | 1975-12-08 | SUPPLY WATER PREHEATER FITTED IN THE DEPLETED STEAM TUBING OF THE TURBINE |
BR7508102*A BR7508102A (en) | 1974-12-10 | 1975-12-08 | PREACHING THE PERFECTED FEEDING WATER IN THE TURBINE EXHAUST STEAM PIPE AND PROCESS FOR ITS MANUFACTURING |
ZA757698A ZA757698B (en) | 1974-12-10 | 1975-12-09 | Feed water pre-heater in turbine exhaust steam port stubs |
FR7537619A FR2294324A1 (en) | 1974-12-10 | 1975-12-09 | Two stage feed water pre-heater - has two steam spaces and a water reversal chamber |
JP50147901A JPS5183904A (en) | 1974-12-10 | 1975-12-10 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19742458437 DE2458437C2 (en) | 1974-12-10 | 1974-12-10 | FEED WATER PREHEATER WITH TWO STEAM ROOMS |
Publications (2)
Publication Number | Publication Date |
---|---|
DE2458437B1 DE2458437B1 (en) | 1976-02-12 |
DE2458437C2 true DE2458437C2 (en) | 1976-10-14 |
Family
ID=5933072
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19742458437 Expired DE2458437C2 (en) | 1974-12-10 | 1974-12-10 | FEED WATER PREHEATER WITH TWO STEAM ROOMS |
Country Status (9)
Country | Link |
---|---|
JP (1) | JPS5183904A (en) |
BE (1) | BE836375A (en) |
BR (1) | BR7508102A (en) |
DE (1) | DE2458437C2 (en) |
FR (1) | FR2294324A1 (en) |
IT (1) | IT1051789B (en) |
NL (1) | NL7512156A (en) |
SE (1) | SE7512825L (en) |
ZA (1) | ZA757698B (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS53109002A (en) * | 1977-03-04 | 1978-09-22 | Hitachi Ltd | Feeding water heater |
JPS57126723U (en) * | 1981-01-30 | 1982-08-07 | ||
JPS57127704A (en) * | 1981-02-02 | 1982-08-09 | Hitachi Ltd | Feed water heater |
US4502530A (en) * | 1982-09-23 | 1985-03-05 | Carrier Corporation | Waterbox for a shell and tube heat exchanger |
DE59708896D1 (en) * | 1997-10-09 | 2003-01-16 | Alstom Switzerland Ltd | Low-pressure feedwater |
EP2565572A1 (en) * | 2011-09-02 | 2013-03-06 | Aurotec GmbH | Heat exchange conduit system |
-
1974
- 1974-12-10 DE DE19742458437 patent/DE2458437C2/en not_active Expired
-
1975
- 1975-10-16 NL NL7512156A patent/NL7512156A/en unknown
- 1975-11-14 SE SE7512825A patent/SE7512825L/en unknown
- 1975-12-02 IT IT29897/75A patent/IT1051789B/en active
- 1975-12-08 BR BR7508102*A patent/BR7508102A/en unknown
- 1975-12-08 BE BE162524A patent/BE836375A/en unknown
- 1975-12-09 FR FR7537619A patent/FR2294324A1/en active Granted
- 1975-12-09 ZA ZA757698A patent/ZA757698B/en unknown
- 1975-12-10 JP JP50147901A patent/JPS5183904A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
NL7512156A (en) | 1976-06-14 |
JPS5183904A (en) | 1976-07-22 |
SE7512825L (en) | 1976-06-11 |
BR7508102A (en) | 1976-08-24 |
ZA757698B (en) | 1976-11-24 |
IT1051789B (en) | 1981-05-20 |
FR2294324A1 (en) | 1976-07-09 |
BE836375A (en) | 1976-04-01 |
DE2458437B1 (en) | 1976-02-12 |
FR2294324B1 (en) | 1979-02-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
E77 | Valid patent as to the heymanns-index 1977 | ||
8320 | Willingness to grant licences declared (paragraph 23) | ||
8339 | Ceased/non-payment of the annual fee |