DE2123264C3 - Device for limiting the return flow of steam from regenerative feedwater preheaters into the steam turbine in the event of a load drop - Google Patents
Device for limiting the return flow of steam from regenerative feedwater preheaters into the steam turbine in the event of a load dropInfo
- Publication number
- DE2123264C3 DE2123264C3 DE19712123264 DE2123264A DE2123264C3 DE 2123264 C3 DE2123264 C3 DE 2123264C3 DE 19712123264 DE19712123264 DE 19712123264 DE 2123264 A DE2123264 A DE 2123264A DE 2123264 C3 DE2123264 C3 DE 2123264C3
- Authority
- DE
- Germany
- Prior art keywords
- steam
- condensate
- preheater
- turbine
- steam turbine
- 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
- 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
- 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
- F01K7/00—Steam 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steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating
- F01K7/34—Steam 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steam systems, cycles or processes; Control means specially adapted for such systems, cycles or processes; Use of withdrawn or exhaust steam for feed-water heating the engines being of extraction or non-condensing type; Use of steam for feed-water heating
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)
- Engine Equipment That Uses Special Cycles (AREA)
- Control Of Turbines (AREA)
Description
Die Erfindung betrifft eine Vorrichtung zum Be-The invention relates to a device for loading
grenzen des Dampfrückflusses aus Regenerativ-Spei- ,££,!__Limits of the steam return flow from regenerative storage, ££,! __
sewasservorwärmern in die Dampfturbine bei Last- «^""g^11 RegSativspeisewasservorwärmcrwater preheater in the steam turbine at load «^""g ^ 11 RegSativspeisewasservorwärmcr
abfall, wobei der Innenraum des Speisewasservor- Fig.2 einen Kegciiciau ρwaste, with the interior of the feed water pre- Fig.2 a Kegciiciau ρ
warmes über eine Heizdampf-Entnfhme.eitung ei- 30 ohne.Niveauregelung^ des^^^^^ndwarm via a heating steam removal line ei- 30 without level control ^ of ^^^^^ nd
nerseits mit der Dampfturbine verbunden ist und an- Mg··* einen ™& F on the other hand is connected to the steam turbine and an- Mg ·· * a ™ & F
dererseits einen Auffangraum für das anfallende mit Kondensatauffangbehal er.on the other hand, a collecting space for the accumulating with a condensate collecting tank.
Heizkondensat aufweist oder an einen solchen über Entsprechend der DarsteHungin F>g l*t η demHas heating condensate or to such a condensate according to the representation in F> g l * t η dem
Verbindungsleitungen angeschlossen ist. unterer, Teil des Innenraumes d«S^isewas«n,oi-Connecting cables is connected. lower, part of the interior d «S ^ isewas« n, oi-
Die bisherige Praxis ζ ig, daß die Wirtschaftlich- 35 ^™S ΑThe previous practice that the economic- 35 ^ ™ S Α
keit eines Kraftwerkes mit Dampfturbinen durch die der du ch^.e^e gability of a power plant with steam turbines through the du ch ^ .e ^ e g
Anzapfspeisewasservorwarmung verbessert wird. Das die ™3« Ko g ndensat aus dem Speisewasser-Kondensat des Heizdampfes wird in den Speisewas- ^^,"J^ Druckes geführt wird In der Zuservorwärmern gesammelt und aus Vorwärmern ho- vorwärmer iiuuciei! " & niUpfi intrphnrht heren Druckes In Vorwärmer niedrigeren Druckes 4o ^ξ^^^Ι^^^^^ ^ 5^^ΑίΑ tÄ EÄe; der durch einen Niveaureg.er gehal-Tap feed water preheating is improved. That the ™ 3 "Ko g hands NSAT from the feedwater condensate of the heating steam is in the feedwater ^^," out J ^ pressure is collected in the Zuservorwärmern and out preheaters HO preheater iiuuciei! "& NiUpfi intrphnrht heren pressure in preheater lower pressure 4 o ^ ξ ^^^ Ι ^^^^^ ^ 5 ^^ ΑίΑ tÄ E Ä e ; by a Niveaureg.er g e hal -
liehe Kondensatmengen enthalten. Bei Ausfall der ten wird.
Belastung kommt es zu einer schnellen Drucksen- Nach Fig. 2 ist der Speisewasservorwärmer9
kung in der Turbine, die auch in die Speisewasser- 45 durch die Leitung 10 mit dem Kühler 12 verbunden,
vorwärmer übertragen wird. Der heftige Druckabfall wobei in der Leitung 10 über dem Kondensatspiegel
in den Vorwärmern führt zu einer schnellen Dampf- eine Venturidüse 11 eingebaut ist. Nach Fig. 3 ist
bildung aus dem gesammelten Kondensat, und der der Speisewasservorwärmer 9 unter dem Rohrbündel
gebildete Dampf strömt durch die Entnahmeleitung mit einem Kondensatauffangbehälter 13 versehen.
in die Turbine zurück. Bei dem Rückfluß werden die 50 Die Düse 14, angebracht am oberen Rand des Aufinstabilen Wassertropfen von größerem Durchmesser fangbehälten, 13, wirkt als Drosselorgan zugleich auf
und die stabilen Tropfen von kleinerem Durchmesser den Rückfluß des Dampfes aus dem Auffangbehälter
mitgenommen. Gegen die Rückströmung des Damp- 13 und aus dem Kühler, der mittels der Leitung 15
fes in die Turbine werden bei kleineren Durchmes- angeschlossen ist.lent amounts of condensate included. If the ten fails.
According to FIG. 2, the feedwater preheater is transferred to the turbine, which is also transferred to the feedwater preheater 45 through the line 10 connected to the cooler 12. The violent pressure drop, whereby a Venturi nozzle 11 is installed in the line 10 above the condensate level in the preheaters. According to FIG. 3, formation from the collected condensate, and the steam formed by the feedwater preheater 9 under the tube bundle, flows through the extraction line with a condensate collecting container 13. back into the turbine. During the reflux, the nozzle 14, attached to the upper edge of the unstable water droplets of larger diameter, 13, acts as a throttle element at the same time and the stable droplets of smaller diameter entrained the reflux of the steam from the collecting container. Against the backflow of the steam 13 and out of the cooler, which is connected by means of the line 15 fes into the turbine with smaller diameters.
sern Rückschlagventile oder Rückschlagklappen und 55 Die Vorrichtung arbeitet wie folgt: Der Speisewasfür die niedrigsten Entnahmeblöcke Siphons ange- servorwärmer 1 enthält während des Betriebes einen wendet. regelnotwendigen Vorrat an Kondensate. Das Kon-Mit dem Anwachsen der Leistung der Blöcke stei- densat des Heizdampfes wird in den Kühler 3 abgegen die Abmessungen der Entnahmeleitung und die führt, während durch die Zuführungsleitung 4 unterAbmessungen dieser Organe. Es steigt jedoch auch 60 kühltes Kondensat zugeführt wird. Der Rückfluß des die Wahrscheinlichkeit ihrer Undichtheit und eines Dampfes, der bei Lastabfall der Turbine infolge der eventuellen Versagens. Der Dampfstrom, der die Drucksenkung entsteht, wird in der Zuführungslei-Wassertropfen mitnimmt, strömt in die Turbine na- tung 4 mittels der ersten Düse 6 verringert, während hezu mit Schallgeschwindigkeit zurück. Mit Rück- die Geschwindigkeit des Dampfstromes aus dem sieht auf die Störungsfolgen des Eindringens der 65 Kühler 3 durch Leitung 2 mittels der zweiten Düse Wassertropfen in die Turbine steigt mit wachsenden erniedrigt wird, die den Dampfstrom aus dem Vorrat Leistungen die Notwendigkeit, dieser Gefahr zu be- an Kondensat» und aus dem Kühler3 begrenzt. In gegnen. dem Speisewasservorwärmer9 gemäß Fig. 2 wirdsern check valves or check valves and 55 The device works as follows: The feed water the lowest withdrawal blocks siphons the servo heater 1 contains one during operation turns. necessary stock of condensates. The Kon-Mit the increase in the output of the blocks increases the amount of heating steam in the cooler 3 the dimensions of the extraction line and which leads while through the supply line 4 under dimensions of these organs. However, it also rises when cooled condensate is supplied. The reflux of the the likelihood of their leakage and a steam generated when the load on the turbine drops as a result of the eventual failure. The steam flow, which creates the pressure drop, is in the supply li-water droplet entrains, flows into the turbine water 4 by means of the first nozzle 6 reduced, while now back at the speed of sound. With reverse the speed of the steam flow from the looks at the disruptive consequences of the penetration of the cooler 3 through line 2 by means of the second nozzle Drops of water in the turbine rises with growing, which lowers the steam flow from the reservoir The need to avoid this risk is limited to condensate »and from the cooler3. In against. the feedwater preheater9 according to FIG
das Kondensat des Heizdampfes über den Kühler 12 in den weiteren Vorwärmer geführt. In der Leitung 10, die den Vorwärmer 9 mit dem Kühler 12 verbindet, verhindert die Venturidüse 11 den Rückfluß des Dampfes aus dem Kühler 12. Der Kondensatauffangbehälter 13 nach F i g. 3 sammelt das Kondensat des Heizdampfes und das unterkühlte Kondensat aus dem nicht dargestellten vorgeschalteten Kühler. Die Düse 14 verhindert hier einen heftigen Dampfstrom sowohl aus dem Auffangbehälter 13 als auch aus dem Kühler des nicht dargestellten Vorwärmers, der in die Leitung 15 eingebaut ist.the condensate of the heating steam passed through the cooler 12 into the further preheater. On the line 10, which connects the preheater 9 to the cooler 12, the venturi 11 prevents the backflow of the Steam from the cooler 12. The condensate collecting container 13 according to FIG. 3 collects the condensate of the Heating steam and the supercooled condensate from the upstream cooler, not shown. the Nozzle 14 prevents a violent stream of steam both from the collecting container 13 and from here the cooler of the preheater, not shown, which is installed in the line 15.
Hhrzu 1 Blatt ZeichnungenHhrzu 1 sheet of drawings
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CS324470A CS155907B1 (en) | 1970-05-12 | 1970-05-12 |
Publications (3)
Publication Number | Publication Date |
---|---|
DE2123264A1 DE2123264A1 (en) | 1971-12-02 |
DE2123264B2 DE2123264B2 (en) | 1974-06-06 |
DE2123264C3 true DE2123264C3 (en) | 1975-02-13 |
Family
ID=5371948
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19712123264 Expired DE2123264C3 (en) | 1970-05-12 | 1971-05-11 | Device for limiting the return flow of steam from regenerative feedwater preheaters into the steam turbine in the event of a load drop |
Country Status (3)
Country | Link |
---|---|
CS (1) | CS155907B1 (en) |
DE (1) | DE2123264C3 (en) |
FR (1) | FR2091511A5 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19653256A1 (en) * | 1996-12-20 | 1998-06-25 | Asea Brown Boveri | Binary / polynary condensation capacitor |
-
1970
- 1970-05-12 CS CS324470A patent/CS155907B1/cs unknown
-
1971
- 1971-05-11 DE DE19712123264 patent/DE2123264C3/en not_active Expired
- 1971-05-12 FR FR7117172A patent/FR2091511A5/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR2091511A5 (en) | 1972-01-14 |
DE2123264A1 (en) | 1971-12-02 |
DE2123264B2 (en) | 1974-06-06 |
CS155907B1 (en) | 1974-06-24 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE2123264C3 (en) | Device for limiting the return flow of steam from regenerative feedwater preheaters into the steam turbine in the event of a load drop | |
DE1200326B (en) | Procedure for starting up a steam power plant | |
AT111930B (en) | Boiler feed device for locomotives. | |
DE510713C (en) | Boiler feed system with degassing of the feed water in a mixing preheater | |
DE257100C (en) | ||
DE565234C (en) | Method and device for the gas-protected storage and degassing of water by means of a vapor cushion maintained above the water level of a storage tank | |
AT65451B (en) | Steam generator formed from tubes. | |
DE884502C (en) | Device for controlling an over-fed high-pressure tube steam generator with forced operation | |
DE608782C (en) | Feed water preheater for forced circulation boiler | |
DE717896C (en) | High pressure storage system | |
DE633813C (en) | Control device for small power steam systems equipped with drum water tube boilers, especially for rail or road vehicles | |
DE537114C (en) | Condensation system, consisting of a condenser with condensate chamber, condensate preheaters with drip water chambers | |
AT122586B (en) | Process for generating steam. | |
DE320858C (en) | Device for preheating steam boiler feed water using steam in two preheaters | |
DE557815C (en) | Steam power plant with heating of a liquid, in particular the boiler feed water, by means of steam precipitation in several pressure levels | |
DE1653732A1 (en) | Cavitation protection device | |
AT22043B (en) | Hot water heating system. | |
AT72823B (en) | Process for operating bleed turbines. | |
DE614372C (en) | Steam boiler system with feed water storage | |
DE763548C (en) | Method for regulating the level of the cooling liquid evaporating in a turbine runner | |
AT82609B (en) | Steam jet fan. | |
DE511635C (en) | Device for preheating and storing boiler feed water | |
DE400601C (en) | Method and device for operating steam systems | |
DE686989C (en) | Device for recovering waste heat from nozzles | |
DE548513C (en) | High pressure steam power plant |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C3 | Grant after two publication steps (3rd publication) | ||
E77 | Valid patent as to the heymanns-index 1977 | ||
EHJ | Ceased/non-payment of the annual fee |