EP2401551A2 - Burner for a thermal post-combustion device - Google Patents

Burner for a thermal post-combustion device

Info

Publication number
EP2401551A2
EP2401551A2 EP10708909A EP10708909A EP2401551A2 EP 2401551 A2 EP2401551 A2 EP 2401551A2 EP 10708909 A EP10708909 A EP 10708909A EP 10708909 A EP10708909 A EP 10708909A EP 2401551 A2 EP2401551 A2 EP 2401551A2
Authority
EP
European Patent Office
Prior art keywords
burner
inner tube
fuel gas
flame
outer tube
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.)
Granted
Application number
EP10708909A
Other languages
German (de)
French (fr)
Other versions
EP2401551B1 (en
Inventor
Christof Gminder
Apostolos Katefidis
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.)
Eisenmann SE
Original Assignee
Eisenmann SE
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 Eisenmann SE filed Critical Eisenmann SE
Priority to PL10708909T priority Critical patent/PL2401551T3/en
Publication of EP2401551A2 publication Critical patent/EP2401551A2/en
Application granted granted Critical
Publication of EP2401551B1 publication Critical patent/EP2401551B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/20—Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone
    • F23D14/22—Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone with separate air and gas feed ducts, e.g. with ducts running parallel or crossing each other
    • F23D14/24—Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone with separate air and gas feed ducts, e.g. with ducts running parallel or crossing each other at least one of the fluids being submitted to a swirling motion
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46—Details, e.g. noise reduction means
    • F23D14/48—Nozzles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46—Details, e.g. noise reduction means
    • F23D14/48—Nozzles
    • F23D14/58—Nozzles characterised by the shape or arrangement of the outlet or outlets from the nozzle, e.g. of annular configuration
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
    • F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D2900/00—Special features of, or arrangements for burners using fluid fuels or solid fuels suspended in a carrier gas
    • F23D2900/14—Special features of gas burners
    • F23D2900/14481—Burner nozzles incorporating flow adjusting means

Definitions

  • the invention relates to a burner for a thermal post-combustion device with
  • a combustion nozzle arranged in the housing and having a pipe through which fuel gas can pass, which has at least one outlet opening for the fuel gas;
  • Thermal afterburning devices should burn as completely as possible with the best possible efficiency, that is to say with the lowest possible burner output, which should as far as possible incinerate the impurities entrained in the waste air to be disposed of. From the point of view of complete combustion, a comparatively high temperature of the flame produced by the burner would be favorable; however, with increasing temperature, the formation of undesirable nitrogen oxides increases.
  • a burner of the aforementioned type is described in DE 102 37 604 B4.
  • the combustion nozzle used there has a plurality of main outlet openings, via which the fuel gas flows in the radial direction with a certain pressure.
  • the radial distance, in which the main outlet - tion of the axis of the fuel nozzle are arranged, as well as, the cross section of the main outlet openings is achieved that form at the main outlet openings individual flames that do not läppen each other substantially.
  • the obvious idea is to dissolve the compact flame ball, found in even older burners of the prior art, into a plurality of individual flames, each of which burns at a lower temperature than the flame ball. This concept has proven itself well; however, there is a continuing need to further improve the properties of burners.
  • Object of the present invention is to provide a burner of the type mentioned in such a way that with a simple structure particularly good combustion values, especially in view of the formation of CO and NO can be achieved.
  • the combustion nozzle comprises an outer tube and an inner tube which form an annular outlet gap with their end regions;
  • the flow path for the fuel gas in the vicinity of the outlet gap has a bottleneck. Due to the inventive design of the fuel nozzle with outer and inner tube and in particular the bottleneck in the end of the flow path, a particularly compact flame is achieved in cooperation with the exhaust air stream, whose outer shape can be roughly referred to as "bell-shaped". It has a comparatively small surface area for a given volume and is therefore, according to popular opinion, not actually suitable for achieving good combustion values. It has previously been assumed that in such compact flames, the combustion temperature is too high and therefore too high levels of NO X are unavoidable.
  • Verwirbelungsein- direction ensures despite a compact flame for complete combustion of the entrained impurities in the exhaust gas and the fuel gas by flow vortex generated between exhaust air stream and gas ring. These initially pull the outer areas of the flame partially backwards, but are finally entrained by the exhaust air, so that at low temperature of the combustion chamber, a complete oxidation of the combustible components is achieved.
  • the constriction in the flow path of the fuel gas is achieved in that the outer tube in its end gap bounding the outlet gap a in the flow direction of the fuel gas has conically tapered section. Through this section, the fuel gas is directed in the vicinity of the exit slit on the inner tube, which promotes the formation of the desired flame shape.
  • the inner tube has on its outer circumferential surface in its end gap delimiting the outlet gap, in particular a V-shaped cross-section groove. If this groove with the tapered
  • outer tube and inner tube are adjustable in the axial direction to each other. In this way it is possible to change the effective area of the exit gap, for example to adapt the burner to different capacities.
  • FIG. 1 shows an axial section through the region of a burner located inside the housing of a thermal afterburning apparatus
  • FIG. 2 shows, on an enlarged scale, an axial section through the end region of the combustion nozzle of the burner. ners of Figure 1 in a first relative position of two inner components;
  • FIG 3 shows a section, similar to Figure 2, in which the inner components of the fuel nozzle are in a second relative position.
  • FIG. 10 there is that portion of a generally designated by the reference numeral 10 burner is shown, which is disposed within the insulated outer casing of a thermal post-combustion device. Because of the "environment" in which this burner 10 is used, reference is made to the above-mentioned DE 102 37 604 B4. Unless otherwise stated below, the statements there regarding the connection, the design and the mode of operation of the burner 10 apply here in the same way. In particular, the present case also applies that the burner 10 as a whole has its free end region in an opening 15 of a combustion chamber wall
  • the burner 10 has a cylindrical burner housing 12, which carries a swirling device 13 at its end facing the combustion chamber 16.
  • This swirling device 13 can also have the design described in DE 102 37 604 B4. It lies with its outer circumference more or less close to the opening 15 of the combustion chamber wall 14.
  • the actual combustion nozzle 1 is positioned, which in turn an outer tube 2 and, coaxially within this, an inner tube 3 comprises.
  • the outer tube 2 has at its free, lying within the combustion chamber 16 end portion a conically on the end to be converged portion 2a.
  • the inner tube 3, however, has in its lying within the combustion chamber 16 end portion has a conically tapered to the end portion 3a and, further to the free end, a re flared section 3b. In this way, in the outer circumferential surface of the inner tube 1, a kind of V-shaped groove 3c. Between the free edge of the
  • Section 2a of the outer tube 2 and the groove 3c is an annular nozzle-outlet slit 4th
  • the annular space between the burner housing 12 and the outer tube 2 of the combustion nozzle 1 is located in the field of view of a UV diode, which serves to monitor the burning process in a known manner.
  • the annular space between the outer tube 2 and the inner tube 3 of the fuel nozzle 1 is connected in a manner not shown in the drawing with a fuel gas source.
  • Interspace between inner tube 3 and ignition electrode 5 can be charged with a starting gas.
  • the burner 10 described above operates as follows:
  • the fuel gas is the space between the outer tube
  • the exhaust air to be cleaned flows through the swirling device 3 into the flame 17 thus formed, which is strongly swirled around the flame 17.
  • the contaminants contained in the exhaust air are now burned, effectively suppressing both the formation of NO and the formation of CO.
  • the effective cross-section of the outlet gap 4 can be changed in order to obtain an optimum flame shape for the given application and the lowest possible formation of NO and CO.

Abstract

The invention describes a burner (10) for a thermal post-combustion device, which, in a known way, has a burner jet (1) arranged in a housing (12). Arranged on the end region of the housing (12) is a swirl apparatus (13), through which the exhaust gas to be purified can be made to flow. The burner jet (1) comprises an outer tube (2) and an inner tube (3), wherein it is possible for combustion gas to be made to flow through the interspace between said two tubes (2, 3) as far as an annular outlet gap (4) in the end region thereof. The flow path for the combustion gas has a bottleneck in the vicinity of the outlet gap (4). In this way, a compact flame can be achieved, the form of which can be designated "bell-shaped" and which, for a given volume, has a relatively small surface. Although, from a conventional point of view, such a flame has poor CO2 values, the swirl apparatus (13) ensures that the exhaust gas burns in the flame with very low NOx and CO values.

Description

Brenner für eine thermische NachverbrennungsvorrichtungBurner for a thermal post-combustion device
Die Erfindung betrifft einen Brenner für eine thermische Nachverbrennungsvorrichtung mitThe invention relates to a burner for a thermal post-combustion device with
a) einem Gehäuse;a) a housing;
b) einer in dem Gehäuse angeordneten Brenndüse, die ein von Brenngas durchströmbares Rohr aufweist, das mindestens eine Austrittsöffnung für das Brenngas besitzt;b) a combustion nozzle arranged in the housing and having a pipe through which fuel gas can pass, which has at least one outlet opening for the fuel gas;
c) ' einer auf einem Endbereich des Gehäuses angebrachten Verwirbelungseinrichtung, die von dem zu reinigenden Abgas durchstrδmbar ist.c) ' mounted on an end portion of the housing swirling device, which is durchstrδmbar by the exhaust gas to be cleaned.
Thermische Nachverbrennungsvorrichtungen sollen mit einem möglichst guten Wirkungsgrad, also mit einer möglichst geringen Brennerleistung, die in der zu entsorgenden Abluft mitgeführten Verunreinigungen möglichst vollständig verbrennen. Unter dem Gesichtspunkt der voll- ständigen Verbrennung wäre eine verhältnismäßig hohe Temperatur der von dem Brenner erzeugten Flamme günstig; allerdings wächst mit zunehmender Temperatur die Bildung von unerwünschten Stickstoff -Oxiden.Thermal afterburning devices should burn as completely as possible with the best possible efficiency, that is to say with the lowest possible burner output, which should as far as possible incinerate the impurities entrained in the waste air to be disposed of. From the point of view of complete combustion, a comparatively high temperature of the flame produced by the burner would be favorable; however, with increasing temperature, the formation of undesirable nitrogen oxides increases.
Ein Brenner der eingangs genannten Art ist in der DE 102 37 604 B4 beschrieben. Die dort eingesetzte Brenndüse besitzt eine Mehrzahl von Hauptaustrittsöffnungen, über welche das Brenngas in radialer Richtung mit einem bestimmten Druck ausströmt. Durch geeignete Wahl des radialen Abstandes, in dem die Hauptaustrittsöff - nung von der Achse der Brenndüse angeordnet sind, sowie, des Querschnittes der Hauptaustrittsöffnungen wird erreicht, dass sich an den Hauptaustrittsöffnungen Einzel flammen bilden, die sich gegenseitig im Wesentlichen nicht über- läppen. Dabei wird der einleuchtende Gedanke verfolgt, den kompakten Flammenball, der sich bei noch älteren Brennern nach dem Stande der Technik findet, in eine Vielzahl von Einzelflammen aufzulösen, von denen jede mit einer niedrigeren Temperatur brennt als der Flammenball . Dieses Konzept hat sich durchaus bewährt; es besteht jedoch der ständige Bedarf, die Eigenschaften von Brennern weiter zu verbessern.A burner of the aforementioned type is described in DE 102 37 604 B4. The combustion nozzle used there has a plurality of main outlet openings, via which the fuel gas flows in the radial direction with a certain pressure. By suitable choice of the radial distance, in which the main outlet - tion of the axis of the fuel nozzle are arranged, as well as, the cross section of the main outlet openings is achieved that form at the main outlet openings individual flames that do not läppen each other substantially. In doing so, the obvious idea is to dissolve the compact flame ball, found in even older burners of the prior art, into a plurality of individual flames, each of which burns at a lower temperature than the flame ball. This concept has proven itself well; however, there is a continuing need to further improve the properties of burners.
Aufgabe der vorliegenden Erfindung ist es, einen Brenner der eingangs genannten Art so auszugestalten, dass bei einfachem Aufbau besonders gute Verbrennungs- werte, insbesondere im Blick auf die Bildung von CO und NO erzielt werden können. xObject of the present invention is to provide a burner of the type mentioned in such a way that with a simple structure particularly good combustion values, especially in view of the formation of CO and NO can be achieved. x
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dassThis object is achieved in that
d) die Brenndüse ein Außenrohr und ein Innenrohr um- fasst, die mit ihren Endbereichen einen ringför- migen Austrittsspalt bilden;d) the combustion nozzle comprises an outer tube and an inner tube which form an annular outlet gap with their end regions;
wobeiin which
e) der Innenraum zwischen dem Außenrohr und dem Innen- röhr bis zum Austrittsspalt von Brenngas durchströmbar ist;e) the interior between the outer tube and the inner tube can be flowed through to the outlet gap of fuel gas;
f) der Strömungsweg für das Brenngas in der Nähe des Austrittsspalts eine Engstelle aufweist. Durch die erfindungsgemäße Ausgestaltung der Brenndüse mit Außen- und Innenrohr und insbesondere der Engstelle im Endbereich des Strömungsweges wird im Zusammenwirken mit dem Abluftstrom eine besonders kompakte Flamme erzielt, deren äußere Gestalt grob als "glockenförmig" bezeichnet werden kann. Sie weist für ein gegebenes Volumen eine vergleichsweise kleine Oberfläche auf und ist daher nach landläufiger Meinung eigentlich nicht geeignet, gute Verbrennungswerte zu erzielen. Man ging bisher davon aus, dass in derartigen kompakten Flammen die Verbrennungstemperatur zu hoch ist und daher zu hohe Werte an NO X unvermeidbar sind.f) the flow path for the fuel gas in the vicinity of the outlet gap has a bottleneck. Due to the inventive design of the fuel nozzle with outer and inner tube and in particular the bottleneck in the end of the flow path, a particularly compact flame is achieved in cooperation with the exhaust air stream, whose outer shape can be roughly referred to as "bell-shaped". It has a comparatively small surface area for a given volume and is therefore, according to popular opinion, not actually suitable for achieving good combustion values. It has previously been assumed that in such compact flames, the combustion temperature is too high and therefore too high levels of NO X are unavoidable.
Erfindungsgemäß wurde jedoch erkannt, dass eine der- artige Flammenform durchaus einen positiven Effekt hat, da dem Sauerstoff der Zugang zu den inneren Bereichen der Flamme erschwert ist, was dort die Flammentemperatur senkt und dort zu einer reduzierend brennenden Flamme führt. Die von der Fachwelt befürchtete negative Folge einer unvollständigen Verbrennung mit hohen CO-According to the invention, however, it has been recognized that such a flame shape certainly has a positive effect, since the oxygen access to the inner regions of the flame is difficult, which there lowers the flame temperature and there leads to a reducing burning flame. The feared by experts in the negative consequence of incomplete combustion with high CO
Werten vermeidet die Erfindung durch die Verwirbelungsein- richtung, welche trotz kompakter Flamme für eine vollständige Verbrennung der im Abgas mitgeführten Verunreinigungen und des Brenngases sorgt, indem zwischen Abluftstrom und Gasring Strömungswirbel erzeugt werden. Diese ziehen die äußeren Bereiche der Flamme zunächst teilweise nach hinten, die jedoch schließlich von der Abluft mitgerissen werden, sodass bei niedriger Temperatur der Brennkammer eine vollständige Oxidation der brennbaren Bestandteile erzielt wird.Values avoids the invention by the Verwirbelungsein- direction, which ensures despite a compact flame for complete combustion of the entrained impurities in the exhaust gas and the fuel gas by flow vortex generated between exhaust air stream and gas ring. These initially pull the outer areas of the flame partially backwards, but are finally entrained by the exhaust air, so that at low temperature of the combustion chamber, a complete oxidation of the combustible components is achieved.
Zweckmäßigerweise wird die Engstelle im Strömungs- weg des Brenngases dadurch erzielt, dass das Außenrohr in seinem den Austrittsspalt begrenzenden End- bereich einen in Strömungsrichtung des Brenngases sich konisch verjüngenden Abschnitt aufweist. Durch diesen Abschnitt wird das Brenngas in der Nähe des Austrittsspaltes auf das Innenrohr zugelenkt, was die Ausbildung der gewünschten Flammenform fördert .Conveniently, the constriction in the flow path of the fuel gas is achieved in that the outer tube in its end gap bounding the outlet gap a in the flow direction of the fuel gas has conically tapered section. Through this section, the fuel gas is directed in the vicinity of the exit slit on the inner tube, which promotes the formation of the desired flame shape.
Besonders vorteilhaft ist diejenige Ausführungform der Erfindung, bei welcher das Innenrohr an seiner Außenmantelfläche in seinem den Austrittsspalt begrenzenden Endbereich eine insbesondere im Querschnitt V-förmige Nut aufweist. Wenn diese Nut mit dem konisch zulaufendenParticularly advantageous is that embodiment of the invention in which the inner tube has on its outer circumferential surface in its end gap delimiting the outlet gap, in particular a V-shaped cross-section groove. If this groove with the tapered
Endbereich des Außenrohres zusammenwirkt, entsteht eine Strömung des Brenngases, bei welcher die sich ergebende Flamme in besonderem Maße die gewünschten Eigenschaften besitzt .Cooperating end portion of the outer tube, there is a flow of the fuel gas, in which the resulting flame has a particular degree of the desired properties.
Bei der letztgenannten Ausführungsform ist es zusätzlich möglich, dass Außenrohr und Innenrohr in axialer Richtung zueinander verstellbar sind. Auf diese Weise ist es möglich, die effektive Fläche des Austritts- Spaltes zu verändern, beispielsweise, um den Brenner an unterschiedliche Kapazitäten anzupassen.In the latter embodiment, it is additionally possible that outer tube and inner tube are adjustable in the axial direction to each other. In this way it is possible to change the effective area of the exit gap, for example to adapt the burner to different capacities.
Aus Raumgründen schließlich ist es zweckmäßig, wenn im Inneren des Innenrohrs eine Zündelektrode unter- gebracht ist.Finally, for reasons of space, it is expedient for an ignition electrode to be accommodated in the interior of the inner tube.
Ein Ausführungsbeispiel der Erfindung wird nachstehend anhand der Zeichnung näher erläutert; es zeigenAn embodiment of the invention will be explained below with reference to the drawing; show it
Figur 1 einen Axialschnitt durch den im Inneren des Gehäuses einer thermischen Nachverbrennungs- Vorrichtung liegenden Bereich eines Brenners;FIG. 1 shows an axial section through the region of a burner located inside the housing of a thermal afterburning apparatus;
Figur 2 in vergrößertem Maßstab einen Axialschnitt durch den Endbereich der Brenndüse des Bren- ners von Figur 1 in einer ersten Relativposition zweier innerer Komponenten;FIG. 2 shows, on an enlarged scale, an axial section through the end region of the combustion nozzle of the burner. ners of Figure 1 in a first relative position of two inner components;
Figur 3 einen Schnitt, ähnlich der Figur 2, in welcher sich die inneren Komponenten der Brenndüse in einer zweiten Relativposition befinden.3 shows a section, similar to Figure 2, in which the inner components of the fuel nozzle are in a second relative position.
Zunächst wird auf Figur 1 Bezug genommen. Dort ist derjenige Bereich eines insgesamt mit dem Bezugszeichen 10 gekennzeichneten Brenners dargestellt, der innerhalb des isolierten Außengehäuses einer thermischen Nachverbrennungsvorrichtung angeordnet wird. Wegen der "Umgebung", in welcher dieser Brenner 10 eingesetzt wird, wird auf die oben bereits erwähnte DE 102 37 604 B4 Bezug genommen. Soweit nachfolgend nichts anderes gesagt ist, gelten die dortigen Ausführungen für den An- schluss, die Ausgestaltung und die Art der Betriebsweise des Brenners 10 hier in gleicher Weise. Insbesondere gilt auch vorliegend, dass der Brenner 10 insgesamt mit seinem freien Endbereich in eine Öffnung 15 einer BrennkammerwandFirst, reference is made to FIG. There is that portion of a generally designated by the reference numeral 10 burner is shown, which is disposed within the insulated outer casing of a thermal post-combustion device. Because of the "environment" in which this burner 10 is used, reference is made to the above-mentioned DE 102 37 604 B4. Unless otherwise stated below, the statements there regarding the connection, the design and the mode of operation of the burner 10 apply here in the same way. In particular, the present case also applies that the burner 10 as a whole has its free end region in an opening 15 of a combustion chamber wall
14 der thermischen Nachverbrennungsvorrichtung eingeführt ist.14 of the thermal post-combustion device is introduced.
Der Brenner 10 weist ein zylindrisches Brennergehäuse 12 auf, welches an seinem der Brennkammer 16 zugewandten Ende eine Verwirbelungseinrichtung 13 trägt . Diese Verwirbelungseinrichtung 13 kann ebenfalls diejenige Bauweise besitzen, die in der DE 102 37 604 B4 beschrieben ist. Sie liegt mit ihrem Außenumfang mehr oder weniger dicht an der Öffnung 15 der Brennkammerwand 14 an.The burner 10 has a cylindrical burner housing 12, which carries a swirling device 13 at its end facing the combustion chamber 16. This swirling device 13 can also have the design described in DE 102 37 604 B4. It lies with its outer circumference more or less close to the opening 15 of the combustion chamber wall 14.
Koaxial innerhalb des Brennergehäuses 12 ist die eigentliche Brenndüse 1 positioniert, die ihrerseits ein Außenrohr 2 und, koaxial innerhalb von diesem, ein Innenrohr 3 umfasst . Das Außenrohr 2 besitzt an seinem freien, innerhalb der Brennkammer 16 liegenden Endbereich einen konisch auf das Ende zu konvergierenden Abschnitt 2a. Das Innenrohr 3 dagegen weist in seinem innerhalb der Brennkammer 16 liegenden Endbereich einen sich konisch auf das Ende verjüngenden Abschnitt 3a und, weiter auf das freie Ende zu, einen sich wieder konisch erweiternden Abschnitt 3b auf. Auf diese Weise entsteht in der Außenmantelfläche des Innenrohres 1 eine Art V-förmiger Nut 3c. Zwischen dem freien Rand desCoaxially within the burner housing 12, the actual combustion nozzle 1 is positioned, which in turn an outer tube 2 and, coaxially within this, an inner tube 3 comprises. The outer tube 2 has at its free, lying within the combustion chamber 16 end portion a conically on the end to be converged portion 2a. The inner tube 3, however, has in its lying within the combustion chamber 16 end portion has a conically tapered to the end portion 3a and, further to the free end, a re flared section 3b. In this way, in the outer circumferential surface of the inner tube 1, a kind of V-shaped groove 3c. Between the free edge of the
Abschnitts 2a des Außenrohres 2 und der Nut 3c befindet sich ein ringförmiger Düsen-Austrittsspalt 4.Section 2a of the outer tube 2 and the groove 3c is an annular nozzle-outlet slit 4th
Zwischen dem Außenrohr 2 und dem Innenrohr 3 der Brenndüse 1 ist eine axiale Relativbewegung möglich. Dies kann entweder durch eine axiale Verschiebung des Außenrohres 2 oder eine axiale Verschiebung des Innenrohres 3 geschehen. Die Folge ist, dass der effektive Austrittsspalt 4 der Brenndüse 1 in sei- nem Querschnitt verändert werden kann. Dies wird aus den Figuren 2 und 3 deutlich. Während in FigurBetween the outer tube 2 and the inner tube 3 of the combustion nozzle 1, an axial relative movement is possible. This can be done either by an axial displacement of the outer tube 2 or an axial displacement of the inner tube 3. The result is that the effective exit slit 4 of the combustion nozzle 1 can be changed in its cross section. This becomes clear from FIGS. 2 and 3. While in figure
2 der freie Rand des Abschnittes 2a des Außenrohres 2 etwa der tiefsten Stelle der Nut 3c des Innenrohres2 the free edge of the portion 2a of the outer tube 2 about the lowest point of the groove 3c of the inner tube
3 gegenüberliegt und auf diese Weise ein größtmög- licher Düsenspalt 4 entsteht, liegt in der Relativposition der Figur 3 der freie Rand des Abschnittes 2a des Außenrohres 2 verhältnismäßig nahe an dem sich konisch zum Ende des Innenrohres 3 hin verjüngenden Abschnitt 3a des Innenrohres 3. Ersichtlich ist in dieser Relativposition von Außenrohr 2 und Innenrohr3 and in this way creates the largest possible nozzle gap 4, in the relative position of FIG. 3 the free edge of the section 2a of the outer tube 2 is relatively close to the section 3a of the inner tube 3 tapering conically towards the end of the inner tube 3 is in this relative position of outer tube 2 and inner tube
3 der Querschnitt des ringförmigen Austrittsspaltes 4 vergleichsweise gering.3, the cross section of the annular exit slit 4 comparatively low.
Der ringförmige Zwischenraum zwischen dem Brennerge- häuse 12 und dem Außenrohr 2 der Brenndüse 1 liegt im Sichtfeld einer UV-Diode, die in bekannter Weise der Überwachung des Brennvorganges dient .The annular space between the burner housing 12 and the outer tube 2 of the combustion nozzle 1 is located in the field of view of a UV diode, which serves to monitor the burning process in a known manner.
Der ringförmige Zwischenraum zwischen dem Außenrohr 2 und dem Innenrohr 3 der Brenndüse 1 ist in einer in der Zeichnung nicht dargestellten Weise mit einer Brenngasquelle verbunden.The annular space between the outer tube 2 and the inner tube 3 of the fuel nozzle 1 is connected in a manner not shown in the drawing with a fuel gas source.
In den Innenraum des Innenrohres 3 schließlich ist eine Zündelektrode 5 eingeschoben. Der ringförmigeIn the interior of the inner tube 3, finally, a firing electrode 5 is inserted. The annular
Zwischenraum zwischen Innenrohr 3 und Zündelektrode 5 kann mit einem Zündgas beschickt werden.Interspace between inner tube 3 and ignition electrode 5 can be charged with a starting gas.
Der oben beschriebene Brenner 10 arbeitet wie folgt:The burner 10 described above operates as follows:
Das Brenngas wird dem Zwischenraum zwischen dem AußenrohrThe fuel gas is the space between the outer tube
2 und dem Innenrohr 3 der Brenndüse 1 mit einem bestimmten Druck zugeführt. Seine Strömungsgeschwindigkeit kann in der Zuführleitung dabei durch eine Venturi-Düse erhöht werden, wie dies bekannt ist. Das Brenngas tritt dann durch den Austrittsspalt 4 aus. Um den Brenner 10 zu entzünden, wird in den Zwischenraum zwischen Innenrohr2 and the inner tube 3 of the combustion nozzle 1 fed with a certain pressure. Its flow rate can be increased in the supply line through a Venturi nozzle, as is known. The fuel gas then exits through the outlet gap 4. To ignite the burner 10 is in the space between the inner tube
3 und Zündelektrode 5 Zündgas eingeführt und mit Hilfe der Zündelektrode 5 entzündet. Dies führt dann wiederum zum Entzünden des Brenngases. In Strömungsrichtung hinter dem Austrittsspalt 4 bildet sich nun eine Flamme 17, deren äußere Kontur einer Glocke ähnelt. Dies will sagen, dass sich die Flamme 17 zunächst, von dem Radius des freien Randes des Außenrohres 2 ausgehend, in Strömungsrichtung verhältnismäßig rasch erweitert, dann jedoch weiter in3 and ignition electrode 5 ignition gas introduced and ignited by means of the ignition electrode 5. This in turn leads to the ignition of the fuel gas. In the flow direction behind the outlet gap 4 now forms a flame 17 whose outer contour is similar to a bell. This means that the flame 17 initially, starting from the radius of the free edge of the outer tube 2, expands comparatively rapidly in the flow direction, but then further into
Richtung auf das Innere der Brennkammer 16 zu ihren Radius nur noch wenig vergrößert und schließlich auch wieder verhältnismäßig rasch verkleinert. Dies ist in Figur 1 schematisch dargestellt. Auf diese Weise entsteht eine Flamme 17, die bei vorgegebenem Volumen eine Verhältnis- mäßig geringe Oberfläche aufweist.Direction to the interior of the combustion chamber 16 to its radius only slightly increased and finally reduced again relatively quickly. This is shown schematically in FIG. In this way, a flame 17 is created, which at a given volume has a ratio of moderately low surface area.
In die so gebildete Flamme 17 fließt über die Verwirbe- lungseinrichtung 3 die zu reinigende Abluft, die da- bei um die Flamme 17 herum stark verwirbelt wird. Die in der Abluft enthaltenen Verunreinigungen werden nunmehr verbrannt, wobei sowohl die Bildung von NO als auch die Bildung von CO wirkungsvoll unterdrückt werden.The exhaust air to be cleaned flows through the swirling device 3 into the flame 17 thus formed, which is strongly swirled around the flame 17. The contaminants contained in the exhaust air are now burned, effectively suppressing both the formation of NO and the formation of CO.
Wie bereits oben erwähnt, kann je nach der Menge des anfallenden Abgases der effektive Querschnitt des Austrittsspalt 4 verändert werden, um auf diese Weise eine für den gegebenen Anwendungsfall optimale Flammenform und geringstmögliche Bildung von NO und CO zu erhalten. As already mentioned above, depending on the amount of exhaust gas produced, the effective cross-section of the outlet gap 4 can be changed in order to obtain an optimum flame shape for the given application and the lowest possible formation of NO and CO.

Claims

Patentansprüche claims
1. Brenner für eine thermische Nachverbrennungsvorrichtung mit1. Burner for a thermal post-combustion device with
a) einem Gehäuse;a) a housing;
b) einer in dem Gehäuse angeordneten Brenndüse, die ein ein von Brenngas durchströmbares Rohr aufweist, das mindestens eine Austrittsöffnung für das Brenngas besitzt;b) a combustion nozzle arranged in the housing, which has a pipe through which fuel gas can flow and which has at least one outlet opening for the fuel gas;
c) einer auf einem Endbereich des Gehäuses angebrachten Verwirbelungseinrichtung, die von dem zu reinigenden Abgas durchströmbar ist;c) a swirling device mounted on an end region of the housing and through which the exhaust gas to be cleaned can flow;
dadurch gekennzeichnet, dasscharacterized in that
d) die Brenndüse (1) ein Außenrohr (2) und ein Innenrohr (3) umfasst, die mit ihren Endbereichen einen ringförmigen Austrittsspalt (4) begrenzen;d) the combustion nozzle (1) comprises an outer tube (2) and an inner tube (3) which delimit with their end regions an annular outlet gap (4);
wobeiin which
e) der Innenraum zwischen Außenrohr (2) und Innenrohre) the interior between outer tube (2) and inner tube
(3) bis zum Austrittsspalt (4) von Brenngas durch- strömbar ist;(3) can be flowed through to the outlet slit (4) of fuel gas;
f) der Strömungsweg für das Brenngas in der Nähe des Austrittsspalts (4) eine Engstelle aufweist.f) the flow path for the fuel gas in the vicinity of the outlet gap (4) has a bottleneck.
2. Brenner nach Anspruch 1, dadurch gekennzeichnet, dass das Außenrohr (2) in seinem den Austritts - spalt (4) begrenzenden Endbereich einen in Strömungs- richtung des Brenngases sich konisch verjüngenden Abschnitt (2a) aufweist.2. Burner according to claim 1, characterized in that the outer tube (2) has a section (2a) conically tapering in the flow direction of the fuel gas in its end region delimiting the outlet gap (4).
3. Brenner nach Anspruch 2, dadurch gekennzeichnet, dass das Innenrohr (3) an seiner Außenmantelfläche in seinem den Austrittsspalt (4) begrenzenden Endbereich eine insbesondere im Querschnitt V-förmige Nut (2c) aufweist.3. Burner according to claim 2, characterized in that the inner tube (3) on its outer circumferential surface in its the outlet gap (4) delimiting end region in particular a cross-sectionally V-shaped groove (2c).
4. Brenner nach Anspruch 3, dadurch gekennzeichnet, dass das Außenrohr (2) und das Innenrohr (3) in axialer Richtung relativ zueinander verstellbar sind.4. Burner according to claim 3, characterized in that the outer tube (2) and the inner tube (3) in the axial direction are adjustable relative to each other.
5. Brenner nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass im Inneren des Innenrohrs (3) eine Zündelektrode (5) untergebracht ist. 5. Burner according to one of the preceding claims, characterized in that in the interior of the inner tube (3) an ignition electrode (5) is housed.
EP10708909.6A 2009-02-24 2010-02-23 Burner for a thermal post-combustion device Active EP2401551B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL10708909T PL2401551T3 (en) 2009-02-24 2010-02-23 Burner for a thermal post-combustion device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009010274.4A DE102009010274B4 (en) 2009-02-24 2009-02-24 Burner for a thermal post-combustion device
PCT/EP2010/001113 WO2010097197A2 (en) 2009-02-24 2010-02-23 Burner for a thermal post-combustion device

Publications (2)

Publication Number Publication Date
EP2401551A2 true EP2401551A2 (en) 2012-01-04
EP2401551B1 EP2401551B1 (en) 2019-05-29

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US (1) US9194580B2 (en)
EP (1) EP2401551B1 (en)
CN (1) CN102405375B (en)
BR (1) BRPI1008590A2 (en)
DE (1) DE102009010274B4 (en)
MX (1) MX2011008932A (en)
PL (1) PL2401551T3 (en)
RU (1) RU2545604C2 (en)
WO (1) WO2010097197A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014018178A1 (en) * 2014-12-09 2016-06-09 Eisenmann Se Thermal afterburning plant
US10126015B2 (en) 2014-12-19 2018-11-13 Carrier Corporation Inward fired pre-mix burners with carryover

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE680057C (en) * 1936-08-27 1939-08-21 Richard Rueckheim Gas burner
US2368178A (en) * 1943-01-26 1945-01-30 Hauck Mfg Co Combination burner for liquid and gaseous fuels
US2366517A (en) 1943-03-27 1945-01-02 Standard Oil Dev Co Lubricating composition
SU425019A1 (en) * 1972-03-28 1974-04-25 BURNER DEVICE WITH ADJUSTABLE LIGHTNESS TORCH LAG \ J-lГЛ- i i
US3984196A (en) * 1974-05-28 1976-10-05 Kurt Zenkner Method and burner for combustion of waste air
DE2643797A1 (en) * 1976-09-29 1978-04-06 Bayer Ag METHOD AND DEVICE FOR THERMAL CLEANING OF EXHAUST AIR
DE2745493A1 (en) * 1977-10-10 1979-04-19 Bayer Ag METHOD AND DEVICE FOR COMBUSTION OF EXPLOSIBLE GASES
SU688774A1 (en) * 1977-10-18 1979-09-30 Институт черной металлургии Burner
DE3027587A1 (en) * 1980-07-21 1982-02-25 Klöckner-Humboldt-Deutz AG, 5000 Köln BURNER FOR SOLID FUELS
FR2522393B1 (en) * 1982-02-26 1990-02-02 Chugai Ro Kogyo Kaisha Ltd PROPORTIONAL CONTROLLED LIQUID FUEL BURNER
DE3518080A1 (en) * 1985-05-20 1986-11-20 Stubinen Utveckling AB, Stockholm METHOD AND DEVICE FOR BURNING LIQUID AND / OR SOLID FUELS IN POWDERED FORM
DE3715453A1 (en) * 1987-05-08 1988-11-24 Krupp Polysius Ag METHOD AND BURNER FOR FIREING FUEL
DK168460B1 (en) 1991-12-06 1994-03-28 Topsoe Haldor As Swirl burner
US5199866A (en) * 1992-03-30 1993-04-06 Air Products And Chemicals, Inc. Adjustable momentum self-cooled oxy/fuel burner for heating in high temperature environments
DE19738233A1 (en) * 1997-07-16 1998-02-26 Koehne Heinrich Dr Ing Mixing device for fuels and air
FR2802615B1 (en) * 1999-12-07 2002-02-15 Atofina INJECTOR FOR USE IN A DEVICE FOR THE COMBUSTION OF CORROSIVE PRODUCTS
US6315551B1 (en) * 2000-05-08 2001-11-13 Entreprise Generale De Chauffage Industriel Pillard Burners having at least three air feed ducts, including an axial air duct and a rotary air duct concentric with at least one fuel feed, and a central stabilizer
RU2179685C1 (en) * 2000-08-07 2002-02-20 Тишин Анатолий Петрович Burner for burning gases
DE10051221A1 (en) * 2000-10-16 2002-07-11 Alstom Switzerland Ltd Burner with staged fuel injection
RU2213299C1 (en) * 2002-03-11 2003-09-27 Общество с ограниченной ответственностью "КНПЦ" Gas burner
GB0209365D0 (en) * 2002-04-24 2002-06-05 Boc Group Plc Injection of solids into liquids
DE10237604B4 (en) 2002-08-16 2006-07-06 Eisenmann Maschinenbau Gmbh & Co. Kg Afterburner with a burner
DE10332860A1 (en) 2003-07-18 2005-02-10 Linde Ag Gas burner for separately supplied gases has burner head made of aluminum material in region of output end of gas input channel
US8113821B2 (en) * 2008-03-07 2012-02-14 Hauck Manufacturing Company Premix lean burner

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2010097197A2 *

Also Published As

Publication number Publication date
PL2401551T3 (en) 2020-01-31
RU2545604C2 (en) 2015-04-10
WO2010097197A3 (en) 2011-10-27
CN102405375B (en) 2015-01-28
WO2010097197A2 (en) 2010-09-02
US9194580B2 (en) 2015-11-24
CN102405375A (en) 2012-04-04
EP2401551B1 (en) 2019-05-29
DE102009010274A1 (en) 2010-09-02
MX2011008932A (en) 2011-10-14
RU2011138957A (en) 2013-04-10
DE102009010274B4 (en) 2014-06-18
US20120037053A1 (en) 2012-02-16
BRPI1008590A2 (en) 2016-03-15

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