DE390334C - Working method for boiler systems with flue gas preheater, in which the feed water supply is interrupted to increase the output - Google Patents
Working method for boiler systems with flue gas preheater, in which the feed water supply is interrupted to increase the outputInfo
- Publication number
- DE390334C DE390334C DED42099D DED0042099D DE390334C DE 390334 C DE390334 C DE 390334C DE D42099 D DED42099 D DE D42099D DE D0042099 D DED0042099 D DE D0042099D DE 390334 C DE390334 C DE 390334C
- Authority
- DE
- Germany
- Prior art keywords
- flue gas
- interrupted
- increase
- feed water
- output
- 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
- F22D1/36—Water and air preheating systems
- F22D1/38—Constructional features of water and air preheating systems
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air Supply (AREA)
Description
Arbeitsverfahren für Kesselanlagen mit Rauchgasvorwärmer, bei denen zur Steigerung der Leistung die Speisewasserzuführung unterbrochen wird. Die Erfindung bezieht sich auf Kesselanlagen mit Aufspeicherung von heißem Kesselwasser bei geringer Dampfentnahme und Verminderung oder Unterbrechung der Speisung bei mehr Dampfentnahme.Working method for boiler systems with flue gas preheaters, where the feed water supply is interrupted to increase the output. The invention refers to boiler systems with storage of hot boiler water at low Steam extraction and reduction or interruption of the supply with more steam extraction.
Bei diesen Anlagen ist vorgeschlagen worden, bei Unterbrechung der Speisung das durch den Economiser fließende Wasser in einem besonderen Speisewasserspeicher aufzuspeichern und es nachher bei Normalbetrieb dem Kessel wieder zuzuführen.In these systems it has been proposed to interrupt the The water flowing through the economiser is fed into a special feed water storage tank to be stored and then fed back to the boiler during normal operation.
Diese Anordnung hat insofern einen Nachteil, als die dein durch den Econorniser fließenden Wasser übertragene Wärme zur Dampferzeugung während der f.Jberlastung des Kessels nicht ausgenutzt werden kann, d. h. gerade in einem Augenblick ausfällt, wo der Kessel diese Wärme am notwendigsten braucht.This arrangement has a disadvantage in that the Econorniser flowing water transferred heat to generate steam during the f.Jberload the boiler cannot be used, d. H. fails in an instant, where the boiler needs this heat most.
Es ist wohl an sich schon vorgeschlagen worden, Wasser- und Luftvorwärmer so hintereinanderzuschalten, daß die Rauchgase je nach der Belastung die beiden Vorwärmer gleichzeitig ganz oder zum Teil durchstreichen.It has been suggested in itself, water and air preheaters to be connected in series so that the smoke gases, depending on the load, the two At the same time, cross out all or part of the preheater.
Erfindungsgemäß soll nun der Luftvorwärmer im Umführungskanal, d. h. also neben dem Wasservorwärmer angeordnet sein, so daß bei Ausschaltung des Wasservorwärmers die Rauchgase unmittelbar durch den Luftvorwärmer gelangen und somit die Verbrennungsluft anwärmen und die Verbrennungstemperatur erhöhen. Die Anordnung hat auch den Vorteil, außerordentlich raumsparend zu sein.According to the invention, the air preheater in the bypass duct, d. H. So be arranged next to the water preheater, so that when the water preheater is switched off the flue gases pass directly through the air preheater and thus the combustion air warm up and increase the combustion temperature. The arrangement also has the advantage to be extremely space-saving.
In der Zeichnung ist die Erfindung in einem Ausführungsbeispiel dargestellt, und zwar zeigt: Abb. i einen senkrechten Längsschnitt durch eine solche Kesselanlage, Abb. a eine Draufsicht.In the drawing, the invention is shown in an exemplary embodiment, namely shows: Fig. i a vertical longitudinal section through such a boiler system, Fig. A is a top view.
Hinter dem Kessel i ist ein geteilter Economiser a, ä vorgesehen, durch den die Rauchgase mittels Klappen 3 hindurchgelassen werden können, die dann durch eine hinter dem Economiser angeordnete Saugzuganlage 4 abgesaugt werden. Zwischen den Eceirioiiiisern 2, 2' ist ein Umführungskanal j angeordnet, der durch Klappen 6 abgeteilt und freigegeben werden kann und ebenfalls zum Saugzug führt.A split economiser a, ä is provided behind boiler i, through which the flue gases can be let through by means of flaps 3, which then be sucked off by an induced draft system 4 arranged behind the economiser. Between the Eceirioiiiisern 2, 2 'a bypass channel j is arranged, which by flaps 6 can be divided and released and also leads to the induced draft.
Im Umführungskanal ist eine größere Anzahl Rohre 7 vorgesehen, die unten in einen Kasten 8 münden, der seinerseits durch einen Kanal 9 mit der Unterseite des Rostes verbunden ist. Der vordere Teil des Rostes ist durch eine Einkapselung io gegen die Außenluft abgesperrt. Bei Normalbetrieb sind die Klappen 3 geöffnet und die Klappen 6 geschlossen, so daß die Rauchgase, die durch die Economiser hindurch abgesaugt werden, das Speisewasser anwärmen. Wird aber die Speisung unterbrochen, so werden die Klappen 3 geschlossen und die Klappen 6 geöffnet, so daß die Rauchgase durch den durch die Rohre 7 gebildeten Luftvorwärmer hindurchströmen und zum Saugzug gelangen. Die Verbrennungsluft wird durch- die Rohre 7 hindurch angesaugt und dabei angewärmt und gelangt dann durch die Leitung 9 unter den Rost des Kessels i, wo sie dann nach Durchdringen der Brennstoffschicht durch ihre erhöhte Temperatur auch eine Erhöhung der Verbrennungstemperatur in der Kesselanlage hervorruft.In the bypass channel a larger number of tubes 7 is provided open down into a box 8, which in turn through a channel 9 with the bottom of the grate is connected. The front part of the grate is encapsulated OK shut off from the outside air. During normal operation, the flaps 3 are open and the flaps 6 closed so that the flue gases passing through the economiser be sucked off, heat the feed water. But if the supply is interrupted, so the flaps 3 are closed and the flaps 6 opened, so that the flue gases flow through the air preheater formed by the tubes 7 and to the induced draft reach. The combustion air is sucked in through the pipes 7 and at the same time warmed and then passes through the line 9 under the grate of the boiler i, where they then too, after penetrating the fuel layer due to their increased temperature causes an increase in the combustion temperature in the boiler system.
Die Luftvorwärmeranordnung kann natürlich in beliebig anderer Weise erfolgen.The air preheater arrangement can of course be used in any other way take place.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DED42099D DE390334C (en) | Working method for boiler systems with flue gas preheater, in which the feed water supply is interrupted to increase the output |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DED42099D DE390334C (en) | Working method for boiler systems with flue gas preheater, in which the feed water supply is interrupted to increase the output |
Publications (1)
Publication Number | Publication Date |
---|---|
DE390334C true DE390334C (en) | 1924-02-18 |
Family
ID=7046572
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DED42099D Expired DE390334C (en) | Working method for boiler systems with flue gas preheater, in which the feed water supply is interrupted to increase the output |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE390334C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE976167C (en) * | 1951-10-06 | 1963-04-11 | Kraftanlagen Ag | Steam generator system with additional heating surfaces |
-
0
- DE DED42099D patent/DE390334C/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE976167C (en) * | 1951-10-06 | 1963-04-11 | Kraftanlagen Ag | Steam generator system with additional heating surfaces |
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