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DE492662C - Device for cooling nozzle burners for locomotive boiler firing - Google Patents

Device for cooling nozzle burners for locomotive boiler firing

Info

Publication number
DE492662C
DE492662C DEA46443D DEA0046443D DE492662C DE 492662 C DE492662 C DE 492662C DE A46443 D DEA46443 D DE A46443D DE A0046443 D DEA0046443 D DE A0046443D DE 492662 C DE492662 C DE 492662C
Authority
DE
Germany
Prior art keywords
feed
water
pump
nozzle
boiler
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
DEA46443D
Other languages
German (de)
Inventor
Walter Kleinow
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.)
AEG AG
Original Assignee
AEG AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by AEG AG filed Critical AEG AG
Priority to DEA46443D priority Critical patent/DE492662C/en
Priority to DEA48283D priority patent/DE496258C/en
Application granted granted Critical
Publication of DE492662C publication Critical patent/DE492662C/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23DBURNERS
    • F23D1/00Burners for combustion of pulverulent fuel

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Steam Boilers And Waste-Gas Boilers (AREA)

Description

Einrichtung zur Kühlung von Düsenbrennern für Lokomotivkesselfeuerungen Bei Lokomotivkesselfeuerungen für flüssigen und staubförmigen Brennstoff sucht man neuerdings in der Feuerbuchse die Ausbildung einer Stichflamme zu vermeiden und diese durch eine kurze und breite Flamme zu ersetzen. Im Hinblick auf diese Entwicklung hat insbesondere der Erfinder eine Brenneranordnung vorgeschlagen, bei der die Einführungsvorrichtung für den Kohlenstaub aus einem Brennerrohr mit zahlreichen nebeneinanderliegenden und gleichgerichteten Austrittsöffnungen besteht, die das Gemisch aus Kohlenstaub und Förderluft in entsprechende Einzelstrahlen quer zur Achsenrichtung des Rohres in den Feuerraum austreten lassen. Durch eine solche weitgehende UnterteilungderBrennstoffgemischstrahleninwaagerechter oder nahezu waagerechter Richtung wird eine ebene große Oxydationsoberfläche geschaffen, so daß sich eine kurze, breit aufsteigende Flamme ähnlich derjenigen von Rostfeuerungen ausbildet. Durch derartige Maßnahmen wird aber die Zündgeschwindigkeit des Brenngemisches derart gesteigert, daß die Flamme oft bis dicht an oder sogar in den Düsenmund hineinwandert.Device for cooling nozzle burners for locomotive boiler firing One looks for locomotive boiler systems for liquid and powdered fuel recently to avoid the formation of a jet flame in the fire box and to replace this with a short and wide flame. With regard to this development In particular, the inventor has proposed a burner arrangement in which the insertion device for the coal dust from a burner tube with numerous adjacent ones and unidirectional outlet openings, which the mixture of coal dust and conveying air in corresponding individual jets transverse to the axial direction of the pipe let it escape into the combustion chamber. Such an extensive subdivision of the fuel mixture jets into the horizontal or in an almost horizontal direction, a flat, large oxidation surface is created, so that there is a short, broadly rising flame similar to that of grate furnaces trains. Such measures, however, reduce the ignition rate of the combustion mixture so increased that the flame often wanders right up to or even into the nozzle mouth.

Um der dabei leicht eintretenden Zerstörung entgegenzuwirken, wird die Düse in bekannter Weise mit Wasser gekühlt. Unmittelbarer Anschluß der Düsen aber an den Kessel und Ausbildung druckfester Düsen, wie sie nach den bekannten Kühlanordnungen sich ergeben, führen jedoch beim Lokomotivkessel zu baulichen und betrieblichen Schwierigkeiten.In order to counteract the easily occurring destruction the nozzle is cooled with water in a known manner. Direct connection of the nozzles but on the boiler and training pressure-resistant nozzles, as they are known from Cooling arrangements arise, but lead to structural and structural requirements in the case of the locomotive boiler operational difficulties.

Diesen Schwierigkeiten wirdnunder Erfindung gemäß dadurch abgeholfen, daß die Kühlkammer für die Düse in der Ansaugleitung der Speisewasserpumpe oder einer anderen Speisevorrichtung angeordnet ist.According to the invention, these difficulties are remedied by that the cooling chamber for the nozzle in the suction line of the feed water pump or another feed device is arranged.

Eine Kühlanordnung gemäß der Erfindung ist in der Zeichnung beispielsweise dargestellt. Das Speisewasser fließt aus einem Speisewasserbehälter d mittels einer Leitung g durch die in der Feuerbüchse f angeordnete Düse b einer üblichen Speisepumpe P zu, welche das Wasser durch die Düse hindurch ansaugt und durch ein vom Führerstand aus regelbares Umschaltventil v entweder zur Kesselspeisung in den Kesseloderin denWasserbehälter d zurückdrückt. Die Pumpe fördert so viel Wasser, als für die Kühlung der Düse erforderlich ist, und ist im allgemeinen auf gleichbleibende Leistung eingestellt. Um nun bei Betriebsschwankungen den Lauf der Pumpe nicht verändern zu müssen, erfolgt die Regelung der Speisemenge dadurch, daß das Umschaltventil v in angemessenen Zeiten umgestellt wird, also je nach der Betriebslage das Speisewasser durch die Leitung h in den Kessel gedrückt oder durch die Leitungl ganz oder zum Teil in den Speisewasserbehälter zurückgefördert wird.A cooling arrangement according to the invention is shown in the drawing, for example. The feed water flows from a feed water tank d by means of a line g through the nozzle b located in the fire box f to a conventional feed pump P, which sucks the water through the nozzle and through a switch valve v that can be regulated from the driver’s cab either to feed the boiler into the boiler or into the water container d pushes back. The pump delivers as much water as is required to cool the nozzle and is generally set for constant output. In order not to have to change the running of the pump in the event of operating fluctuations, the feed rate is regulated by switching the switching valve v at appropriate times, i.e., depending on the operating position, the feed water is pressed into the boiler through line h or completely through linel or is partially returned to the feed water tank.

Da aber der Widerstand in der zum Kessel führenden Leitung lt infolge des Kesseldruckes höher ist als der in der Rückführleitung 1, würde sich bei Umschaltung des Ventils v eine Ungleichmäßigkeit im Gang der Pumpe p ergeben, was zu Störungen, mindestens aber zu einer ungleichmäßigen, entweder zu reichlichen oder zu geringen Kühlung der Feuerungsdüse führen könnte. Um dies zu vermeiden, kann in der nicht dargestellten Dampfzuleitung der Speisepumpe p ein Drosselventil vorgesehen werden, welches gleichzeitig mit dem Umschaltventil v bewegt wird und Wasserdruck und Dampfdruck immer in ein richtiges Verhältnis zueinander bringt. Diese übereinstimmende Verstellung kann durch mechanische Verbindung beider Teile bewirkt werden.But there the resistance in the boiler leading Line lt is higher than that in return line 1 due to the boiler pressure, If the valve v were to be switched, there would be an irregularity in the operation of the pump p result in interference, or at least an uneven one, either could lead to excessive or insufficient cooling of the furnace nozzle. To this to avoid, can p a in the steam feed line, not shown, of the feed pump Throttle valve can be provided, which moves simultaneously with the switching valve v and water pressure and steam pressure always have a correct relationship to one another brings. This matching adjustment can be achieved by mechanical connection between the two Parts are effected.

Wie oben angedeutet, liegt der wesentliche Vorteil der Erfindung darin, daß die in der Saugleitung liegenden wassergekühlten Düsen entsprechend dem hier herrschenden geringen Druck leicht ausgebildet werden können. Es sei noch darauf hingewiesen, daß die Zwischenschaltung des jetzt allgemein angewendeten Vorwärmers nichts an dem Grundsatz der vorliegenden Erfindung ändert.As indicated above, the main advantage of the invention is that the water-cooled nozzles located in the suction line correspond to the one here prevailing low pressure can be easily formed. It is still on pointed out that the interposition of the now generally used preheater does not change the principle of the present invention.

Claims (1)

PATENTANSPRÜCHE: z. Einrichtung zur Kühlung von Düsenbrennern für Lokomotivkesselfeuerungen, dadurch gekennzeichnet, daß die Kühlkammer für die Düse (b) in der Ansaugleitung (g) der Speisewasserpumpe (p) oder einer anderen Speisevorrichtung angeordnet ist. a. Einrichtung nach Anspruch z, dadurch gekennzeichnet, daß hinter der Pumpe (p) eine durch ein Umschaltventil (v) angeschlossene Umlaufleitung (1) vorgesehen ist, durch welche das nicht zur Kesselspeisung benötigte Kühlwasser ganz oder teilweise in den Wasserbehälter (d) zurückgeleitet wird. 3. Einrichtung nach Anspruch x und a, dadurch gekennzeichnet, daß das Umschaltventil (v) mit einem Drosselventil in der Dampfleitung der Speisepumpe (p) so verbunden ist, daß Dampf- und Wasserdruck in annähernd gleichem Verhältnis geändert werden.PATENT CLAIMS: e.g. Device for cooling nozzle burners for Locomotive boiler, characterized in that the cooling chamber for the nozzle (b) in the suction line (g) of the feed water pump (p) or another feed device is arranged. a. Device according to claim z, characterized in that behind the pump (p) a circulation line (1) connected by a switching valve (v) is provided, through which the cooling water not required for the boiler feed is entirely or partially returned to the water tank (d). 3. Set up after Claims x and a, characterized in that the changeover valve (v) has a throttle valve in the steam line of the feed pump (p) is connected so that steam and water pressure can be changed in approximately the same ratio.
DEA46443D 1925-11-24 1925-11-24 Device for cooling nozzle burners for locomotive boiler firing Expired DE492662C (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DEA46443D DE492662C (en) 1925-11-24 1925-11-24 Device for cooling nozzle burners for locomotive boiler firing
DEA48283D DE496258C (en) 1925-11-24 1926-07-18 Device for cooling nozzle burners for boiler firing through the boiler feed water

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEA46443D DE492662C (en) 1925-11-24 1925-11-24 Device for cooling nozzle burners for locomotive boiler firing
DEA48283D DE496258C (en) 1925-11-24 1926-07-18 Device for cooling nozzle burners for boiler firing through the boiler feed water

Publications (1)

Publication Number Publication Date
DE492662C true DE492662C (en) 1930-04-03

Family

ID=61002661

Family Applications (2)

Application Number Title Priority Date Filing Date
DEA46443D Expired DE492662C (en) 1925-11-24 1925-11-24 Device for cooling nozzle burners for locomotive boiler firing
DEA48283D Expired DE496258C (en) 1925-11-24 1926-07-18 Device for cooling nozzle burners for boiler firing through the boiler feed water

Family Applications After (1)

Application Number Title Priority Date Filing Date
DEA48283D Expired DE496258C (en) 1925-11-24 1926-07-18 Device for cooling nozzle burners for boiler firing through the boiler feed water

Country Status (1)

Country Link
DE (2) DE492662C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE969361C (en) * 1950-08-18 1958-05-22 Koppers Gmbh Heinrich Device for generating combustible gases by gasifying a finely divided fuel
DE1124625B (en) * 1958-05-02 1962-03-01 Kohlenscheidungs Ges Mit Besch Firing with nozzle burners for coal dust, gas or other injectable fuels

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE969361C (en) * 1950-08-18 1958-05-22 Koppers Gmbh Heinrich Device for generating combustible gases by gasifying a finely divided fuel
DE1124625B (en) * 1958-05-02 1962-03-01 Kohlenscheidungs Ges Mit Besch Firing with nozzle burners for coal dust, gas or other injectable fuels

Also Published As

Publication number Publication date
DE496258C (en) 1930-04-17

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