EP0710810B1 - Verfahren zur Behandlung von Kondensat einer Dampfkraftanlage und danach arbeitende Anlage - Google Patents
Verfahren zur Behandlung von Kondensat einer Dampfkraftanlage und danach arbeitende Anlage Download PDFInfo
- Publication number
- EP0710810B1 EP0710810B1 EP95116581A EP95116581A EP0710810B1 EP 0710810 B1 EP0710810 B1 EP 0710810B1 EP 95116581 A EP95116581 A EP 95116581A EP 95116581 A EP95116581 A EP 95116581A EP 0710810 B1 EP0710810 B1 EP 0710810B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- condensate
- condenser
- power plant
- steam power
- feed water
- 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 - Lifetime
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28B—STEAM OR VAPOUR CONDENSERS
- F28B9/00—Auxiliary systems, arrangements, or devices
- F28B9/08—Auxiliary systems, arrangements, or devices for collecting and removing condensate
Definitions
- the invention relates to a method for treatment of condensate from a steam power plant. It continues to refer to a system that works afterwards.
- the heat content of a hot one Gas or vapor into another, generally electrical Energy form converted, e.g. a closed water-steam cycle is used for energy conversion.
- the heat content of the hot gas or steam is initially used to wholly or partly to water in an evaporator evaporate.
- the steam generated in this way becomes a steam turbine fed where it relaxes and thereby energy to a generator system transmits.
- the relaxed steam is then one Capacitor supplied.
- the steam condenses in the condenser to water.
- the water (condensate) is then again the evaporator fed so that a closed circuit is formed.
- the volume inside the condenser above the condensate level is generally under vacuum (vacuum).
- This condenser vacuum can also be created or maintained by additional pumps.
- the condensation process and the vacuum achieved thereby ensure that undesired gas entry into the condensate is avoided.
- the invention is therefore based on the object of a method for the treatment of condensate from a steam power plant, through that with simple means and inexpensively Gas entry into the condensate is avoided, even when the condenser vacuum is not permanently maintained. This should be achieved with a particularly suitable steam power plant become.
- the invention is based on the consideration that only by closing off the condensate from a gas atmosphere Entry of gas into the condensate can be avoided.
- the complete one Completion of the condensate against the gas atmosphere can be achieved by taking the condensate level up to about the height a suitable covering device is lowered. While the lowering is the condenser vacuum to avoid gas entry maintain. That by lowering out of the Condensate removed is avoided while avoiding e.g. Air inlet temporarily stored. In this storage phase may or may not maintain the condenser vacuum be maintained. So in this phase, for example Repair work or maintenance work on the capacitor possible. Likewise, there is gas entry into the condensate at one Avoided night shutdown of the steam power plant. After this the condenser vacuum is built up or restored, the temporarily stored condensate, also without gas entry, are conveyed back into the condenser.
- the task according to the invention solved that a cover device within the capacitor is provided by means of a lowering of the Condensate level the condenser volume below the cover of the capacitor volume above the cover device is at least approximately gas-tight lockable.
- the condenser vacuum can be broken without any gas entry into the condensate.
- the condenser vacuum can be restored by returning the condensate in the condenser the condensate level is raised again the cover device opens again.
- the feed water supply is a heat exchanger to cool the recirculated Condensate switched in which a usable amount of heat of the returned condensate fed to the power plant process can be. It is thus achieved that a usable amount of heat the condensate after returning the condensate to the Condenser used, for example for preheating condensate can be.
- the feed water supply for returning the temporarily stored Condensate in the condenser can on the condenser be arranged below the covering device. In a more appropriate way Design is the feed water supply, however Capacitor arranged above the cover.
- the covering device can be implemented in various ways be, e.g. by means of float balls. Expediently includes the covering device has at least one ball valve. This means that the cover device closes automatically achieved in a simple manner when lowering the condensate level.
- the covering device comprises at least one flap. It expediently has the or each flap Floating elements, for example in the form of a Flap contained cavity. So there is a variation the height of the condensate level an automatic opening and Guaranteed closing of the flaps.
- FIG. 1 shows a condenser 1 and a feed water tank 2 a steam power plant, not shown.
- the capacitor 1 is connected via a condensate line 5 to the Feed water tank 2 connected.
- For the return of condensate K is a connecting line 6 between the feed water tank 2 and the capacitor 1 provided.
- a heat exchanger 7 is connected on the primary side, the secondary side to a condensate supply line 8 is connected to the boiler of the steam power plant.
- a first condensate pump 9 switched.
- the connecting line 6 is by means of a Valve 10 lockable.
- the Steam D generated steam power is the condenser 1 fed via a steam supply 11. Condensed in condenser 1 the steam D to water or condensate K. the condensate K is made by means of a second condensate pump 12 Condenser 1 through the condensate line 5 into the feed water tank 2 required. The feed water tank 2 becomes the condensate K again via a feed water supply line 13 Steam generation process fed.
- the volume 15 of the condenser 1 stands above a condensate level 16 under vacuum (vacuum).
- a cover device 20 is located within the capacitor 1 intended.
- the covering device 20 comprises one with several Bottom plate 22 provided with openings 21 and at the openings 21 arranged float valves 23.
- the float valves 23 each include one connected to the base plate 22 Rod 24 guided ball 25.
- the balls 25 have one lower density than the water W, so that the openings 21 are unlocked if the condensate level 16 is is located above the base plate 22. It is in this Case an unimpeded flow of the condensate through the Openings 21 guaranteed.
- the cover device 20 is provided with a plurality of openings 31 Base plate 32 and arranged at the openings 31 Flaps 33.
- the flaps 33 each have at least one Floating element 34 on.
- the floating elements 34 consist in Embodiment of cavities arranged in the flaps 33.
- the floating elements 34 can also be used the flaps 33 arranged elements made of material in comparison to the condensate K of lower density. So are also in this embodiment the openings 31 are not closed, if the condensate level 16 is above the base plate 32 is located.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
Description
- der Kondensatspiegel bis etwa zur Höhe einer in dem Kondensator angeordneten Abdeckeinrichtung abgesenkt wird, wobei mindestens während des Absenkens das Kondensatorvakuum aufrechterhalten ist,
- Kondensat zwischengespeichert wird, und
- das zwischengespeicherte Kondensat nach Erzeugung des Kondensatorvakuums in den Kondensator zurückgefördert wird.
- Figur 1
- schematisch eine in einem Kondensator einer Dampfkraftanlage angeordnete Abdeckeinrichtung zur Behandlung von Kondensat, und
- Figur 2
- im Ausschnitt eine alternative Ausführungsform der Abdeckeinrichtung.
Claims (9)
- Verfahren zur Behandlung von Kondensat einer Dampfkraftwerksanlage, bei demder Kondensatspiegel (15) bis etwa zur Höhe einer in einem Kondensator (1) angeordneten Abdeckeinrichtung (20) abgesenkt wird, wobei mindestens während des Absenkens das Kondensatorvakuum aufrechterhalten ist,das Kondensat (K) zwischengespeichert wird, unddas zwischengespeicherte Kondensat (K) nach Erzeugung des Kondensatorvakuums in den Kondensator (1) zurückgefördert wird.
- Verfahren nach Anspruch 1, wobei die Dampfkraftanlage einen Speisewasserbehälter (2) aufweist, dadurch gekennzeichnet, daß das aus dem Kondensator (1) entnommene Kondensat (K) in den Speisewasserbehälter (2) gefördert wird.
- Vorrichtung nach Anspruch 2,
dadurch gekennzeichnet, daß das rückgeführte Kondensat (K) abgekühlt wird. - Vorrichtung zur Behandlung von Kondensat einer Dampfkraftanlage, insbesondere zur Durchführung des Verfahrens nach einem der Ansprüche 1 bis 3,
gekennzeichnet durch eine innerhalb eines Kondensators (1) angeordnete Abdeckeinrichtung (20), mittels der bei einem Absenken des Kondensatspiegels (15) das Kondensatorvolumen unterhalb der Abdeckeinrichtung (20) vom Kondensatorvolumen (16) oberhalb der Abdeckeinrichtung (20) mindestens annähernd gasdicht abschließbar ist. - Vorrichtung nach Anspruch 4,
dadurch gekennzeichnet, daß in eine am Kondensator (1) angeordneten Speisewasserzuführung (6) ein Wärmetauscher (7) geschaltet ist. - Vorrichtung nach Anspruch 4 oder 5,
dadurch gekennzeichnet, daß die Speisewasserzuführung (6) am Kondensator (1) oberhalb der Abdeckeinrichtung (20) angeordnet ist. - Vorrichtung nach einem der Ansprüche 4 bis 6,
dadurch gekennzeichnet, daß die Abdeckeinrichtung (20) mindestens ein Schwimmerventil (23) umfaßt. - Vorrichtung nach einem der Ansprüche 4 bis 6,
dadurch gekennzeichnet, daß die Abdeckeinrichtung (20) mindestens eine Klappe (33) umfaßt. - Vorrichtung nach Anspruch 8, dadurch gekennzeichnet, daß die oder jede Klappe (33) ein Schwimmelement (34) umfaßt.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE4439130 | 1994-11-02 | ||
DE4439130 | 1994-11-02 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0710810A2 EP0710810A2 (de) | 1996-05-08 |
EP0710810A3 EP0710810A3 (de) | 1997-10-22 |
EP0710810B1 true EP0710810B1 (de) | 1999-09-29 |
Family
ID=6532308
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95116581A Expired - Lifetime EP0710810B1 (de) | 1994-11-02 | 1995-10-20 | Verfahren zur Behandlung von Kondensat einer Dampfkraftanlage und danach arbeitende Anlage |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0710810B1 (de) |
DE (1) | DE59506942D1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2987971A1 (de) * | 2014-08-20 | 2016-02-24 | Siemens Aktiengesellschaft | Kondensator für ein Dampfkraftwerk, sowie Schwimmkörper für einen solchen Kondensator |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03275903A (ja) * | 1990-03-23 | 1991-12-06 | Toshiba Corp | 蒸気タービンプラントの起動方法およびその方法に使用する復水装置 |
JP3161072B2 (ja) * | 1992-09-10 | 2001-04-25 | 株式会社日立製作所 | 復水器とその運転方法、並びに復水系統とその運転方法 |
-
1995
- 1995-10-20 EP EP95116581A patent/EP0710810B1/de not_active Expired - Lifetime
- 1995-10-20 DE DE59506942T patent/DE59506942D1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE59506942D1 (de) | 1999-11-04 |
EP0710810A3 (de) | 1997-10-22 |
EP0710810A2 (de) | 1996-05-08 |
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