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 output

Info

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
Application number
DED42099D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Deutsche Babcock and Wilcox Dampfkesselwerke AG
Original Assignee
Deutsche Babcock and Wilcox Dampfkesselwerke AG
Publication date
Priority to DED42099D priority Critical patent/DE390334C/en
Application granted granted Critical
Publication of DE390334C publication Critical patent/DE390334C/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22STEAM GENERATION
    • F22DPREHEATING, 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
    • F22D1/00Feed-water heaters, i.e. economisers or like preheaters
    • F22D1/36Water and air preheating systems
    • F22D1/38Constructional features of water and air preheating systems

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)

PATENTANSPRÜCHE: i. Arbeitsverfahren für Kesselanlagen finit Rauchgasvorwärmer, bei denen zur Steigerung der Leistung die Speisewasserzuführung unterbrochen wird, dadurch gekennzeichnet, daß die Rauchgase vorn Wasservorwärmer abgesperrt und durch den Luftvorwärmer geführt werden. PATENT CLAIMS: i. Working method for boiler systems finite flue gas preheaters, in which the feed water supply is interrupted to increase the output, characterized in that the flue gases are shut off from the water preheater and passed through the air preheater. 2. Wasser- und Luftvorwärmer, denen die Rauchgase in veränderbarem Verhältnis zugeführt werden können zur Ausführung des Verfahrens nach Anspruch i, dadurch gekennzeichnet, daß der Luftvorwärmer im Rauchgasumführungskanal angeordnet ist.2. water and air preheaters, to which the flue gases can be supplied in a variable ratio for execution of the method according to claim i, characterized in that the air preheater in Flue gas bypass channel is arranged.
DED42099D Working method for boiler systems with flue gas preheater, in which the feed water supply is interrupted to increase the output Expired DE390334C (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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

Similar Documents

Publication Publication Date Title
DE390334C (en) Working method for boiler systems with flue gas preheater, in which the feed water supply is interrupted to increase the output
DE1426907B2 (en) APPROACH FOR STEAM POWER PLANTS
AT98491B (en) Operating procedures for steam boiler systems with heat storage and flue gas preheaters.
DE434112C (en) Air preheater for firing systems, in which the heat of the heating gases is transferred to the water and the heat stored in the water to the combustion air
DE351797C (en) Procedure for operating boiler systems
DE468622C (en) Device for utilizing waste heat from internal combustion engines
DE400149C (en) Process for utilizing the waste heat from a water gas generator in a heat storage and steam boiler
DE437534C (en) Boiler system with device for regulating the hot steam temperature
DE746113C (en) Ship water tube boiler with superheater in a hot gas flue rising to the side of the combustion chamber
DE475129C (en) Arrangement for regulating the operation of steam boiler systems with indirect high-pressure steam generation
DE4218755C2 (en) Boiler for low temperature heating
DE472731C (en) Waste heat boiler with superheater and additional pulverized coal combustion
DE418717C (en) Control for a superheater upstream of a waste heat boiler
DE465240C (en) Steam boiler with built-in preheater
DE684018C (en) Method and device for regulating the overheating temperature in a water tube boiler with two combustion chambers equipped with their own firing system and an overheater located between the combustion chambers
DE449937C (en) Steam superheater
DE525759C (en) Draft regulator for steam boiler firing
DE907566C (en) Water tube boiler with generator gas firing
DE364527C (en) Water tube boiler
DE2131347A1 (en) Steam power plant
AT127915B (en) Steam generating plant.
DE532959C (en) Steam generator system
DE368116C (en) Boiler for central heating and hot water supply
DE870123C (en) Arrangement of a feed water preheater formed from pipe coils in a horizontal flue gas duct
DE462642C (en) Steam boiler with superheater