EP0114610A1 - Burner for the stoichiometric combustion of a liquid or gaseous fuel - Google Patents
Burner for the stoichiometric combustion of a liquid or gaseous fuel Download PDFInfo
- Publication number
- EP0114610A1 EP0114610A1 EP84100182A EP84100182A EP0114610A1 EP 0114610 A1 EP0114610 A1 EP 0114610A1 EP 84100182 A EP84100182 A EP 84100182A EP 84100182 A EP84100182 A EP 84100182A EP 0114610 A1 EP0114610 A1 EP 0114610A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- thickening
- flame tube
- burner according
- combustion
- burner
- 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
Links
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 60
- 239000000446 fuel Substances 0.000 title claims abstract description 20
- 239000007788 liquid Substances 0.000 title claims abstract description 7
- 230000008719 thickening Effects 0.000 claims abstract description 24
- 239000000463 material Substances 0.000 claims abstract description 5
- 239000007789 gas Substances 0.000 claims description 10
- 238000005338 heat storage Methods 0.000 claims description 4
- 229910010293 ceramic material Inorganic materials 0.000 claims description 2
- 230000007704 transition Effects 0.000 claims description 2
- 239000007921 spray Substances 0.000 abstract description 4
- 238000007493 shaping process Methods 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 3
- 239000004071 soot Substances 0.000 description 3
- 238000004939 coking Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000003134 recirculating effect Effects 0.000 description 2
- 241001156002 Anthonomus pomorum Species 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000003584 silencer Effects 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D11/00—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
- F23D11/36—Details, e.g. burner cooling means, noise reduction means
- F23D11/40—Mixing tubes or chambers; Burner heads
- F23D11/404—Flame tubes
Definitions
- the invention relates to a burner for the stoichiometric combustion of liquid or gaseous fuels, which consists of a fuel line provided with an atomizer nozzle and a supply line surrounding it for the combustion air to be supplied to the atomizer nozzle by a fan or the like.
- Burners of this type are known in numerous different configurations. In order to enable combustion under stroichiometric conditions and thus without soot being formed, it is also known to improve the recirculation of the hot combustion gases by means of various devices and / or internals assigned to the burner. Here, by means of ring elements, which together with other parts of the burner form an injector, a recirculating Flow of hot gases generated. Although the construction effort is sometimes considerable, perfect combustion is not always guaranteed in all load ranges. The burner is dependent on the particular boiler design and the flame burns into the boiler, so that combustion under stoichiometric conditions is often not possible. In addition, the operating noise encountered with these burners is significant.
- the construction effort required for this should be extremely low, so that there is also economical production, but above all the burner should be fully functional immediately after start-up and be controllable in a large area without the combustion being adversely affected and coking occurring.
- the operating noise should be kept low and it should be possible to convert existing systems in a corresponding manner without difficulty.
- a flame tube which forms the combustion chamber and is made of a material with a high heat storage capacity, is connected to the air supply line, the end of which faces the air supply tube has an inlet opening provided with a throttle and at the opposite end of which an insert is inserted into it and with a Variety of exit openings equipped closure plate is provided and that the atomizer nozzle is arranged in the region of the narrowest cross section of the throttle.
- the throttle by means of a thickening which is triangular in longitudinal section and which is provided on the inner edge of the flame tube and has mutually inclined inner circumferential surfaces each enclosing a truncated cone as part of the inlet opening, the two inner circumferential surfaces of the thickening in the abutting area should merge into one another via a fillet.
- the atomizing nozzle it protrudes into the flame tube in such a way that its outlet opening lies in the transition region of the inner jacket surfaces of the thickening determined by the rounding.
- the flow rate of the supplied combustion air is greatest in this area, so that the mixing with the fuel is particularly intensive.
- the atomizer nozzle can also be arranged in the throttle, adjustable in the axial direction.
- the thickening can be easily molded into the flame tube or inserted into it.
- the inclination angle of the side facing the air supply pipe inner surface area of the thickener should be sized larger to the longitudinal axis of the flame tube as the inclination angle of the side facing the combustion chamber inner casing surface, whereby the inclination angle should be about be from 35 to 55 0 and 25 ° to 45 °.
- the inner surface facing the combustion chamber should the thickening limited area correspond approximately 1 / 3-1 / 6 the length of the combustion chamber. In this way, favorable flow conditions are achieved in the inlet opening and in the combustion chamber.
- the throttle or the thickening forming it can also be provided with a cutout running parallel to the longitudinal axis of the flame tube for holding the ignition electrode of the burner, but it is also possible to arrange the ignition electrode between the nozzle and the throttle.
- the outlet openings incorporated in the closure plate of the flame tube are to be designed in a simple embodiment as bores arranged on concentric circles of holes, preferably with a circular cross section, the bores of a circle of holes each having the same inside diameter. If the closure plate is provided with bores of different diameters arranged on two bolt circles, the bores arranged on the inner bolt circle should be dimensioned smaller in their inner diameter than the bores arranged on the outer bolt circle.
- the closure plate should be insertable into the flame tube in the axial direction thereof.
- the closure plate in order to promote recirculation in the combustion chamber, it is appropriate for the closure plate to be conical on the side facing inwards, preferably in mirror image to the opposite inner wall of the thickening.
- the flame tube, the thickening and the sealing plate. can be economically manufactured in one piece from ceramic material, from refractory concrete or the like.
- the burner designed according to the invention for the stoichiometric combustion of liquid or gaseous fuels is not only simple to manufacture in terms of design and thus without difficulty, but the proposed design also enables, above all, always perfect combustion without the formation of soot and without coking occurs.
- a flame tube is connected to the air supply line, which consists of a material with a high heat storage capacity and whose inlet opening has a throttle, in the area of which the atomizer nozzle is arranged, and the opposite end of which is covered by a closure plate provided with a larger number of outlet openings, so the combustion air is fed directly to the atomizer nozzle at an extremely high speed and guided and deflected in the combustion chamber formed by the flame tube, so that recirculation takes place in it and complete combustion and thus complete combustion of the fuel takes place through the hot gases supplied to the atomized fuel .
- the throttle provided in the area of the atomizer nozzle greatly increases the flow velocity of the combustion air, the fuel emerging from the atomizer nozzle is entrained by it and evaporated in the interior of the flame tube by the recirculating hot gases and distributed evenly.
- the interior of the flame tube forms thus a closed combustion chamber, at the outlet openings of the dividing wall only flame peaks emerge together with the hot exhaust gases. Since the operating temperature is extremely high, there is also a high degree of efficiency.
- the thermal energy of the fuel converted by the combustion is released by the hot gases flowing off and by the radiation from the heated flame tube.
- a burner designed in this way is independent of the particular boiler construction and its combustion chamber, and the closure plate also acts as a silencer, so that it can be used almost anywhere.
- existing burners can be converted in a very simple manner, since only the correspondingly designed flame tube is to be connected to their air supply pipe. And since, due to the good recirculation of the hot gases in the combustion chamber, the combustion is complete immediately after the burner is switched on, it is immediately ready for operation.
- the burner designed according to the invention can be regulated over a wide range without structural changes having to be carried out and is therefore easily adaptable to the particular circumstances.
- the amount of combustion air and / or the fuel supplied, for example, by changing the pressure of the oil feed pump, can be done without difficulty. Versatile use with simple handling and trouble-free operation is therefore given, especially since a change in the chimney draft or the boiler pressure has almost no influence on the combustion.
- the configuration according to the invention thus makes it possible, since the recirculation of hot gases causes the fuel to be mixed and gasified well with the combustion air, for total, soot-free combustion and accordingly also for a high energy yield. And since there is no soot and no oil derivatives in the exhaust gas and the proportion of carbon monoxide and hydrocarbons is extremely low, there is also a high level of environmental friendliness with long-term combustion quality.
- the burner designated 1 in Fig. 1 for the combustion of heating oil consists of a fuel supply line 2 provided with an atomizing nozzle 3 and an air supply pipe 4 concentrically surrounding it, in the annular duct 5 of which combustion air of the atomizing nozzle 3 generated by a fan (not shown), which is adjustable in the axial direction can be arranged and which is assigned an ignition electrode 6, flows.
- a flame tube 11 is made from one to the air supply line 4 by means of two flanges 7 and 18, which are connected to one another by screws 8 Material with a high heat storage paper attached, into which the atomizer nozzle 3 protrudes.
- the inlet opening 13 of the flame tube 11 forming a combustion chamber 12 is provided with a throttle 14, through which the flow rate of the supplied combustion air is increased to a great extent.
- the end of the flame tube 11 opposite the throttle 14, on the other hand, has a closure plate 15, into which a larger number of outlet openings 16 and 16 'are incorporated.
- the outlet openings 16 and 16 'are as shown in FIG. 2, on concentric circles of holes a and a' and are designed as bores with a circular cross section.
- the inner wall of the closure plate 15 can be provided with a conical surface 17, as shown in broken lines will.
- the throttle 14 is formed by a thickening 21 formed in the flame tube 11 and triangular in longitudinal section, the conical inner lateral surfaces 22 and 23 of which are inclined opposite to one another and merge into one another by a fillet 24.
- a recess 25 running parallel to the longitudinal axis A of the flame tube 11 for holding the ignition electrodes 6 is incorporated into the thickening 21.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Pressure-Spray And Ultrasonic-Wave- Spray Burners (AREA)
- Spray-Type Burners (AREA)
Abstract
Description
Die Erfindung bezieht sich auf einen Brenner zur stöchiometrischen Verbrennung flüssiger oder gasförmiger Brennstoffe, der aus einer mit einer Zerstäuberdüse versehenen Brennstoffleitung und einer diese umgebenden Zuführungsleitung für die von einem Ventilator oder dgl. der Zerstäuberdüse zuzuführenden Verbrennungsluft besteht.The invention relates to a burner for the stoichiometric combustion of liquid or gaseous fuels, which consists of a fuel line provided with an atomizer nozzle and a supply line surrounding it for the combustion air to be supplied to the atomizer nozzle by a fan or the like.
Brenner dieser Art sind in zahlreichen unterschiedlichen Ausgestaltungen bekannt. Um eine Verbrennung unter ströchiometrischen Bedingungen und somit ohne daß sich Ruß bildet,zu ermöglichen, ist es des weiteren bekannt, die Rezirkulation der heißen Verbrennungsgase durch verschiedenartige dem Brenner zugeordnete Einrichtungen und/oder Einbauten zu verbessern. Hierbei wird mittels Ringelementen, die zusammen mit anderen Teilen des Brenners einen Injektor bilden, eine rezirkulierende Strömung der heißen Gase erzeugt. Obwohl der Bauaufwand mitunter erheblich ist, ist in allen Lastbereichen eine stets einwandfreie Verbrennung nicht gewährleistet. Der Brenner ist nämlich von der jeweiligen Kesselkonstruktion abhängig und die Flamme brennt in den Kessel hinein, so daß eine Verbrennung unter stöchiometrischen Bedingungen oftmals nicht zu bewerkstelligen ist. Außerdem sind die bei diesenBrennern auftretenden Betriebsgeräusche erheblich.Burners of this type are known in numerous different configurations. In order to enable combustion under stroichiometric conditions and thus without soot being formed, it is also known to improve the recirculation of the hot combustion gases by means of various devices and / or internals assigned to the burner. Here, by means of ring elements, which together with other parts of the burner form an injector, a recirculating Flow of hot gases generated. Although the construction effort is sometimes considerable, perfect combustion is not always guaranteed in all load ranges. The burner is dependent on the particular boiler design and the flame burns into the boiler, so that combustion under stoichiometric conditions is often not possible. In addition, the operating noise encountered with these burners is significant.
Aufgabe der_Erfindung ist es daher, einen Brenner zur stöchiometrischen Verbrennung flüssiger oder gasförmiger Brennstoffe der vorgenannten Art zu schaffen, der unabhängig von der jeweiligen Kesselgröße und Kesselkonstruktion ist und der dennoch eine stets vollständige Verbrennung des-zugeführten Brennstoffes und somit eine hohe Energieausbeute bei geringem Schadstoffanfall gewährleistet. Der dazu erforderliche Bauaufwand soll äußerst gering sein, so daß auch eine wirtschaftliche Fertigung gegeben ist, vor allem aber soll der Brenner nach Inbetriebnahme sofort voll funktionsfähig und in einem großen Bereich,ohne daß die Verbrennung ungünstig beeinflußt wird und Verkokungen auftreten, regelbar sein. Des weiteren sollen die Betriebsgeräusche gering gehalten werden und es soll ohne Schwierigkeiten möglich sein, bestehende Anlagen in entsprechender Weise umzurüsten.It is therefore the object of the invention to create a burner for the stoichiometric combustion of liquid or gaseous fuels of the aforementioned type, which is independent of the respective boiler size and design and which nevertheless ensures complete combustion of the fuel supplied and thus a high energy yield with little pollution . The construction effort required for this should be extremely low, so that there is also economical production, but above all the burner should be fully functional immediately after start-up and be controllable in a large area without the combustion being adversely affected and coking occurring. Furthermore, the operating noise should be kept low and it should be possible to convert existing systems in a corresponding manner without difficulty.
Gemäß der Erfindung wird dies dadurch erreicht, daß an die Luftzuführungsleitung ein die Brennkammer bildendes Flammrohr aus einem Werkstoff mit hoher Wärmespeicherkapazität angeschlossen ist, dessen dem Luftzuführungsrohr zugekehrtes Ende eine mit einer Drossel versehene Eingangsöffnung aufweist und an dessen gegenüberliegendem Ende eine in dieses eingesetzte und mit einer Vielzahl von Austrittsöffnungen ausgestattete Verschlußplatte vorgesehen ist und daß die Zerstäuberdüse im Bereich des engsten Querschnittes der Drossel angeordnet ist.According to the invention, this is achieved in that a flame tube, which forms the combustion chamber and is made of a material with a high heat storage capacity, is connected to the air supply line, the end of which faces the air supply tube has an inlet opening provided with a throttle and at the opposite end of which an insert is inserted into it and with a Variety of exit openings equipped closure plate is provided and that the atomizer nozzle is arranged in the region of the narrowest cross section of the throttle.
Aus baulichen Gründen ist es sehr zweckmäßig, die Drossel durch eine imLängsschnitt dreieckförmig gestaltete, auf der Innenrandung des Flammrohres angebrachte Verdickung mit gegeneinander geneigten, jeweils einen Kegelstumpf als einen Teil der Eingangsöffnung einschließenden Innenmantelflächen zu bilden, wobei die beiden Innenmantelflächen der Verdickung in dem aneinanderstoßenden Bereich über eine Ausrundung ineinander übergehen sollte. Um je nach Leistung dieFor constructional reasons, it is very expedient to form the throttle by means of a thickening which is triangular in longitudinal section and which is provided on the inner edge of the flame tube and has mutually inclined inner circumferential surfaces each enclosing a truncated cone as part of the inlet opening, the two inner circumferential surfaces of the thickening in the abutting area should merge into one another via a fillet. Depending on the performance
Angebracht ist es des weiteren, die Zerstäuberdüse derart in das Flammrohr hineinragend anzuordnen, daß deren Austrittsöffnung in dem durch die Ausrundung bestimmten Ubergangsbereich der Innenmantelflächen der Verdickung liegt. In diesem Bereich ist die Strömungsgeschwindigkeit der zugeführten Verbrennungsluft am Größten, so daß die Vermischung mit dem Brennstoff besonders intensiv ist. Um je nach Leistung die Luftgeschwindigkeiten konstant zu halten, kann die Zerstäuberdüse auch in Achsrichtung verstellbar in der Drossel angeordnet werden.It is furthermore appropriate to arrange the atomizing nozzle so that it protrudes into the flame tube in such a way that its outlet opening lies in the transition region of the inner jacket surfaces of the thickening determined by the rounding. The flow rate of the supplied combustion air is greatest in this area, so that the mixing with the fuel is particularly intensive. In order to keep the air speeds constant depending on the output, the atomizer nozzle can also be arranged in the throttle, adjustable in the axial direction.
Die Verdickung kann in einfacher Weise in das Flammrohr eingeformt oder in dieses eingesetzt werden.The thickening can be easily molded into the flame tube or inserted into it.
Der Neigungswinkel der dem Luftzuführungsrohr zugekehrten Innenmantelfläche der Verdickung sollte zur Längsachse des Flammrohres größer bemessen sein als der Neigungswinkel der der Brennkammer zugekehrten Innenmantelfläche, wobei die Neigungswinkel etwa 35 bis 550 bzw. 25 bis 45° betragen sollten. Außerdem sollte der von der der Brennkammer zugekehrten Innenmantelfläche der Verdickung begrenzte Bereich etwa 1/3-1/6 der Länge der Brennkammer entsprechen. Auf diese Weise werden günstige Strömungsverhältnisse in der Eingangsöffnung und in der Brennkammer erzielt.The inclination angle of the side facing the air supply pipe inner surface area of the thickener should be sized larger to the longitudinal axis of the flame tube as the inclination angle of the side facing the combustion chamber inner casing surface, whereby the inclination angle should be about be from 35 to 55 0 and 25 ° to 45 °. In addition, the inner surface facing the combustion chamber should the thickening limited area correspond approximately 1 / 3-1 / 6 the length of the combustion chamber. In this way, favorable flow conditions are achieved in the inlet opening and in the combustion chamber.
Die Drossel bzw. die diese bildende Verdickung kann ferner mit einer parallel zur Längsachse des Flammrohres verlaufenden Freisparung zur Halterung der Zündelektrode des Brenners versehen sein, es ist aber auch möglich, die Zündelektrode zwischen der Düse und der Drossel anzuordnen.The throttle or the thickening forming it can also be provided with a cutout running parallel to the longitudinal axis of the flame tube for holding the ignition electrode of the burner, but it is also possible to arrange the ignition electrode between the nozzle and the throttle.
Die in der Verschlußplatte des Flammrohres eingearbeiteten Austrittsöffnungen sind in einfacher Ausgestaltung als auf konzentrischen Lochkreisen angeordnete Bohrungen mit vorzugsweise kreisförmigem Querschnitt auszubilden, wobei die Bohrungen eines Lochkreises jeweils den gleichen Innendurchmesser aufweisen sollten. Ist die Verschlußplatte mit auf zwei Lochkreisen angeordneten Bohrungen unterschiedlichen Durchmessers versehen, sollten die auf dem inneren Lochkreis angeordneten Bohrungen in ihrem Innendurchmesser kleiner bemessen sein,als die auf dem äußeren Lochkreis angeordneten Bohrungen.The outlet openings incorporated in the closure plate of the flame tube are to be designed in a simple embodiment as bores arranged on concentric circles of holes, preferably with a circular cross section, the bores of a circle of holes each having the same inside diameter. If the closure plate is provided with bores of different diameters arranged on two bolt circles, the bores arranged on the inner bolt circle should be dimensioned smaller in their inner diameter than the bores arranged on the outer bolt circle.
Um die axiale Länge der Brennkammer auf einfache Weise verändern zu können, sollte nach einer Weiterbildung die Verschlußplatte in Achsrichtung des Flammrohres verstellbar in dieses eingesetzt sein.In order to be able to change the axial length of the combustion chamber in a simple manner, according to a further development, the closure plate should be insertable into the flame tube in the axial direction thereof.
Ferner ist es zur Begünstigung der Rezirkulation in der Brennkammer angebracht, die Verschlußplatte auf der nach innen gekehrten Seite kegelig, vorzugsweise spiegelbildlich zu der gegenüberliegenden Innenwandung der Verdickung auszubilden.Furthermore, in order to promote recirculation in the combustion chamber, it is appropriate for the closure plate to be conical on the side facing inwards, preferably in mirror image to the opposite inner wall of the thickening.
Das Flammrohr, die Verdickung und die Verschlußplatte . können in wirtschaftlicher Weise einstückig aus Keramik-Werkstoff, aus feuerfestem Beton oder dgl. hergestellt werden.The flame tube, the thickening and the sealing plate. can be economically manufactured in one piece from ceramic material, from refractory concrete or the like.
Der gemäß der Erfindung ausgebildete Brenner zur stöchiometrischen Verbrennung flüssiger oder gasförmiger Brennstoffe ist nicht nur einfach in der konstruktiven Ausgestaltung und somit ohne Schwierigkeiten zu fertigen, sondern die vorschlagsgemäße Ausgestaltung ermöglicht vor allem auch eine stets vollkommene Verbrennung, ohne daß sich dabei Ruß bildet und ohne daß eine Verkokung auftritt. Wird nämlich an die Luftzuführungsleitung ein Flammrohr angeschlossen, das aus einem Werkstoff mit hoher Wärmespeicherkapazität besteht und dessen Eingangsöffnung eine Drossel, in deren Bereich die Zerstäuberdüse angeordnet ist, aufweist und dessen gegenüberliegendes Ende durch eine mit einer größeren Anzahl von Austrittsöffnungen versehene Verschlußplatte abgedeckt ist, so wird die Verbrennungsluft mit außerordentlich großer Geschwindigkeit unmittelbar der Zerstäuberdüse zugeführt und in der durch das Flammrohr gebildeten Brennkammer geführt und umgelenkt, so daß in dieser eine Rezirkulation stattfindet und durch die dem zerstäubten Brennstoff zugeführten heißen Gase eine vollständige Verbrennung und damit ein vollkommener Ausbrand des Brennstoffes erfolgt. Durch die im Bereich der Zerstäuberdüse vorgesehene Drossel wird hierbei die Strömungsgeschwindigkeit der Verbrennungsluft stark erhöht, der aus der Zerstäuberdüse austretende Brennstoff wird von dieser mitgerissen und in dem Innenraum des Flammrohres durch die rezirkulierenden heißen Gase verdampft und gleich- mäßig verteilt. Der Innenraum des Flammrohres bildet somit eine geschlossene Brennkammer, an den Austrittsöffnungen der Trennwand treten demnach zusammen mit den heißen Abgasen nur noch Flammenspitzen aus. Da die Betriebstemperatur außerordentlich hoch ist, ist auch ein hoher Wirkungsgrad gegeben. Die durch die Verbrennung umgewandelte Wärmeenergie des Brennstoffes wird durch die abströmenden heißen Gase und durch die Abstrahlung von dem erhitzten Flammrohr abgegeben.The burner designed according to the invention for the stoichiometric combustion of liquid or gaseous fuels is not only simple to manufacture in terms of design and thus without difficulty, but the proposed design also enables, above all, always perfect combustion without the formation of soot and without coking occurs. If a flame tube is connected to the air supply line, which consists of a material with a high heat storage capacity and whose inlet opening has a throttle, in the area of which the atomizer nozzle is arranged, and the opposite end of which is covered by a closure plate provided with a larger number of outlet openings, so the combustion air is fed directly to the atomizer nozzle at an extremely high speed and guided and deflected in the combustion chamber formed by the flame tube, so that recirculation takes place in it and complete combustion and thus complete combustion of the fuel takes place through the hot gases supplied to the atomized fuel . The throttle provided in the area of the atomizer nozzle greatly increases the flow velocity of the combustion air, the fuel emerging from the atomizer nozzle is entrained by it and evaporated in the interior of the flame tube by the recirculating hot gases and distributed evenly. The interior of the flame tube forms thus a closed combustion chamber, at the outlet openings of the dividing wall only flame peaks emerge together with the hot exhaust gases. Since the operating temperature is extremely high, there is also a high degree of efficiency. The thermal energy of the fuel converted by the combustion is released by the hot gases flowing off and by the radiation from the heated flame tube.
Ein in dieser Weise ausgebildeter Brenner ist unabhängig von der jeweiligen Kesselkonstruktion und dessen Feuerraum, auch wirkt die Verschlußplatte als Schalldämpfer, so daß ein Einsatz nahezu überall möglich ist. Außerdem können vorhandene Brenner auf sehr einfache Weise umgerüstet werden, da an deren Luftzuführungsrohr lediglich das entsprechend ausgebildete Flammrohr anzuschließen ist. Und da aufgrund der guten Rezirkulation der heißen Gase in der Brennkammer die vollkommene Verbrennung unmittelbar nach Einschalten des Brenners gegeben ist, ist dieser auch sofort betriebsbereit.A burner designed in this way is independent of the particular boiler construction and its combustion chamber, and the closure plate also acts as a silencer, so that it can be used almost anywhere. In addition, existing burners can be converted in a very simple manner, since only the correspondingly designed flame tube is to be connected to their air supply pipe. And since, due to the good recirculation of the hot gases in the combustion chamber, the combustion is complete immediately after the burner is switched on, it is immediately ready for operation.
Des weiteren ist von erheblicher Bedeutung, daß der erfindungsgemäß ausgebildete Brenner, ohne daß bauliche Veränderungen vorzunehmen sind, in einem großen Bereich regelbar und somit leicht an die jeweiligen Gegebenheiten anpaßbar ist. Über die Menge der zugeführten Verbrennungsluft und/oder des Brennstoffes, in dem beispielsweise der Druck der Ölförderpumpe verändert wird, kann dies ohne Schwierigkeiten bewerkstelligt werden, ein vielseitiger -Einsatz bei einfacher Handhabung und störungsfreier Betriebsweise ist demnach gegeben, zumal eine Änderung des Kaminzuges bzw. des Kesseldruckes auf die Verbrennung fast keinen Einfluß mehr ausüben.Furthermore, it is of considerable importance that the burner designed according to the invention can be regulated over a wide range without structural changes having to be carried out and is therefore easily adaptable to the particular circumstances. The amount of combustion air and / or the fuel supplied, for example, by changing the pressure of the oil feed pump, can be done without difficulty. Versatile use with simple handling and trouble-free operation is therefore given, especially since a change in the chimney draft or the boiler pressure has almost no influence on the combustion.
Die erfindungsgemäße Ausgestaltung ermöglicht es somit, da durch die Rezirkulation heißer Gase der Brennstoff mit der Verbrennungsluft gut gemischt und vergast wird, eine totale, rußfreie Verbrennung und demnach auch eine hohe Energieausbeute. Und da im Abgas kein Ruß und keine ölderivate vorhanden sind und der Anteil an Kohlenmonoxyd und Kohlenwasserstoffen äußerst gering ist, ist bei dauerhafter Verbrennungsgüte auch eine hohe Umweltfreundlichkeit gegeben.The configuration according to the invention thus makes it possible, since the recirculation of hot gases causes the fuel to be mixed and gasified well with the combustion air, for total, soot-free combustion and accordingly also for a high energy yield. And since there is no soot and no oil derivatives in the exhaust gas and the proportion of carbon monoxide and hydrocarbons is extremely low, there is also a high level of environmental friendliness with long-term combustion quality.
In der Zeichnung ist ein Ausführungsbeispiel des gemäß der Erfindung ausgebildeten Brenners zur stöchiometrischen Verbrennung flüssiger oder gasförmiger Brennstoffe dargestellt und nachfolgend im einzelnen erläutert. Hierbei zeigen:
- Fig. 1 den mit einem in besonderer Weise aus- gebildeten Flammrohr versehenen Brenner in einem Axialschnitt und
- Fig. 2 einen Schnitt nach der Linie II - II der Fig. 1.
- 1 shows the burner provided with a specially designed flame tube in an axial section and
- 2 shows a section along the line II - II of FIG. 1st
Der in Fig. 1 mit 1 bezeichnete Brenner zur Verbrennung von Heizöl besteht aus einer mit einer Zerstäuberdüse 3 versehenen Brennstoffzuleitung 2 und einem diese konzentrisch umgebenden Luftzuführungsrohr 4, in dessen Ringkanal 5 von einem nicht dargestellten Ventilator erzeugte Verbrennungsluft der Zerstäuberdüse 3, die in Achsrichtung verstellbar angeordnet sein kann und der eine Zündelektrode 6 zugeordnet ist, zuströmt.The burner designated 1 in Fig. 1 for the combustion of heating oil consists of a fuel supply line 2 provided with an atomizing
Um eine Verbrennung unter stöchiometrischen Bedingungen zu erzielen, ist an die Luftzuführungsleitung 4 mittels zweier Flansche 7 und 18, die durch Schrauben 8 miteinander verbunden sind, ein Flammrohr 11 aus einem Werkstoff mit einer hohen Wärmespeicherpapazität befestigt, in das die Zerstäuberdüse 3 hineinragt. Die Eingangsöffnung 13 des eine Brennkammer 12 bildenden Flammrohres 11 ist mit einer Drossel 14 versehen, durch die die Strömungsgeschwindigkeit der zugeführten Verbrennungsluft in einem starken Maße erhöht wird. Das der Drossel 14 gegenüberliegende Ende des Flammrohres 11 weist dagegen eine Verschlußplatte 15 auf, in die eine größere Anzahl von Austrittsöffnungen 16 und 16' eingearbeitet sind.In order to achieve combustion under stoichiometric conditions, a
Die Austrittsöffnungen 16 und 16' liegen hierbei, wie dies in Fig. 2 dargestellt ist, auf konzentrischen Lochkreisen a und a' und sind als Bohrungen mit kreisförmigem Querschnitt ausgebildet. Außerdem sind die innenliegenden Austrittsöffnungen 16' in ihrem Durchmesser kleiner bemessen als die auf dem Lochkreis a angeordneten Austrittsöffnungen 16. Um die Rezirkulation der heißen Gase zu begünstigen, kann die Innenwand der Verschlußplatte 15, wie dies strichpunktiert eingezeichnet ist, mit einer kegeligen Fläche 17 versehen werden.The
Die Drossel 14 ist bei dem gezeigten Ausführungsbeispiel durch eine in das Flammrohr 11 eingeformte, im Längsschnitt dreieckförmige Verdickung 21 ausgebildet, deren kegelige Innenmantelflächen 22 und 23 entgegengesetzt zueinander geneigt verlaufen und durch eine Ausrundung 24 ineinander übergehen. Außerdem ist in die Verdickung 21 eine parallel zur Längsachse A des Flammrohres 11 verlaufende Freisparung 25 zur Halteurng der Zündelektroden 6 eingearbeitet.In the exemplary embodiment shown, the
Durch die unter einem Winkel α von ca. 450 zur Längsachse A des Flammrohres 11 geneigte Innenmantelfläche 22 wird die Strömungsgeschwindigkeit der der Zerstäuberdüse 3, die derart in das Flammrohr 11 hineinragend angeordnet ist,By an angle α of approximately 45 0 to the longitudinal axis A of the
Claims (17)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT84100182T ATE33301T1 (en) | 1983-01-14 | 1984-01-10 | BURNERS FOR THE STOICHIOMETRIC COMBUSTION OF LIQUID OR GASEOUS FUELS. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19833301083 DE3301083A1 (en) | 1983-01-14 | 1983-01-14 | BURNER FOR STOECHIOMETRIC COMBUSTION OF LIQUID OR GASEOUS FUELS |
DE3301083 | 1983-01-14 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0114610A1 true EP0114610A1 (en) | 1984-08-01 |
EP0114610B1 EP0114610B1 (en) | 1988-03-30 |
Family
ID=6188298
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP84100182A Expired EP0114610B1 (en) | 1983-01-14 | 1984-01-10 | Burner for the stoichiometric combustion of a liquid or gaseous fuel |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP0114610B1 (en) |
AT (1) | ATE33301T1 (en) |
DE (2) | DE3301083A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2695712A1 (en) * | 1992-09-15 | 1994-03-18 | Man B & W Diesel Ag | Flame tube for liquid or gaseous fuel burner. |
DE102006012168B4 (en) * | 2006-03-14 | 2009-05-07 | Gvp Gesellschaft Zur Vermarktung Der Porenbrennertechnik Mbh | Burner for combustion of liquid fuel |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT501141B8 (en) * | 2003-03-05 | 2007-02-15 | Soellinger Johann | BURNER FOR LIQUID FUEL, ESPECIALLY PLANT OIL |
CN110986035B (en) * | 2019-12-10 | 2022-02-25 | 清远市精旺环保设备有限公司 | Multi-parameter self-adaptive combustor |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB934178A (en) * | 1959-07-20 | 1963-08-14 | Alfred Edward Moore | Improvements relating to oil burners |
GB1022122A (en) * | 1961-08-31 | 1966-03-09 | Socony Mobil Oil Co Inc | Gun-type oil burner |
DE1266433B (en) * | 1962-10-26 | 1968-04-18 | Optimal Oelfeuerungsmaschb G M | Oil gasification burner |
DE1551732A1 (en) * | 1962-11-23 | 1970-04-02 | Otto Goldmann | Oil gasification burner with fan |
FR2175480A5 (en) * | 1972-03-08 | 1973-10-19 | Mendelson Ralph | |
US4021191A (en) * | 1972-10-30 | 1977-05-03 | Aqua-Chem, Inc. | Reduction of pollutants in gaseous hydrocarbon combustion products |
DE2808690A1 (en) * | 1978-03-01 | 1979-09-06 | Messerschmitt Boelkow Blohm | EQUIPMENT FOR THE PRODUCTION OF HOT STEAMS FOR THE TERTIAER TRANSPORT OF OIL |
DE2810193A1 (en) * | 1978-03-09 | 1979-09-13 | Walter Swoboda | Liquid fuel burner with evaporation system - has baffle plates to prevent turbulent flame and to evaporate fuel by hot combustion products |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1591886A (en) * | 1968-11-15 | 1970-05-04 |
-
1983
- 1983-01-14 DE DE19833301083 patent/DE3301083A1/en not_active Withdrawn
-
1984
- 1984-01-10 EP EP84100182A patent/EP0114610B1/en not_active Expired
- 1984-01-10 AT AT84100182T patent/ATE33301T1/en not_active IP Right Cessation
- 1984-01-10 DE DE8484100182T patent/DE3470208D1/en not_active Expired
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB934178A (en) * | 1959-07-20 | 1963-08-14 | Alfred Edward Moore | Improvements relating to oil burners |
GB1022122A (en) * | 1961-08-31 | 1966-03-09 | Socony Mobil Oil Co Inc | Gun-type oil burner |
DE1266433B (en) * | 1962-10-26 | 1968-04-18 | Optimal Oelfeuerungsmaschb G M | Oil gasification burner |
DE1551732A1 (en) * | 1962-11-23 | 1970-04-02 | Otto Goldmann | Oil gasification burner with fan |
FR2175480A5 (en) * | 1972-03-08 | 1973-10-19 | Mendelson Ralph | |
US4021191A (en) * | 1972-10-30 | 1977-05-03 | Aqua-Chem, Inc. | Reduction of pollutants in gaseous hydrocarbon combustion products |
DE2808690A1 (en) * | 1978-03-01 | 1979-09-06 | Messerschmitt Boelkow Blohm | EQUIPMENT FOR THE PRODUCTION OF HOT STEAMS FOR THE TERTIAER TRANSPORT OF OIL |
DE2810193A1 (en) * | 1978-03-09 | 1979-09-13 | Walter Swoboda | Liquid fuel burner with evaporation system - has baffle plates to prevent turbulent flame and to evaporate fuel by hot combustion products |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2695712A1 (en) * | 1992-09-15 | 1994-03-18 | Man B & W Diesel Ag | Flame tube for liquid or gaseous fuel burner. |
DE102006012168B4 (en) * | 2006-03-14 | 2009-05-07 | Gvp Gesellschaft Zur Vermarktung Der Porenbrennertechnik Mbh | Burner for combustion of liquid fuel |
Also Published As
Publication number | Publication date |
---|---|
DE3301083A1 (en) | 1984-07-19 |
ATE33301T1 (en) | 1988-04-15 |
EP0114610B1 (en) | 1988-03-30 |
DE3470208D1 (en) | 1988-05-05 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0580683B1 (en) | Burner arrangement, especially for gas turbines, for the low-pollutant combustion of coal gas and other fuels | |
DE2936073C2 (en) | Combustion process to reduce the emission of nitrogen oxides and smoke | |
EP0503319B1 (en) | Burner for a premixing combustion of a liquid and/or a gaseous fuel | |
CH680084A5 (en) | ||
DE2552374C2 (en) | Burners for liquid or gaseous fuel | |
DE2659089C3 (en) | Burners, in particular for liquid fuels | |
CH680816A5 (en) | ||
EP0394800A1 (en) | Premix burner for generating a hot gas | |
EP0483554B1 (en) | Method for minimising the NOx emissions from a combustion | |
EP0410135B1 (en) | Burner for stoichiometric combustion of liquid or gaseous fuels | |
EP0430011B1 (en) | Burner for the combustion of liquid or gaseous fuels | |
EP0777082A2 (en) | Premix burner | |
EP0114610A1 (en) | Burner for the stoichiometric combustion of a liquid or gaseous fuel | |
DE102017118166B4 (en) | Burner head, burner system and use of the burner system | |
DE3923238A1 (en) | Burner for liq. or gaseous fuel - incorporates system to recirculate products of combustion | |
EP0740108A2 (en) | Burner | |
AT406706B (en) | Burner for gas and oil heating boilers | |
DE2345838A1 (en) | BURNER | |
EP0491079B1 (en) | Burner head for premix combustion of a liquid fuel in an atmospheric combustion installation | |
DE102005038662A1 (en) | Combustion head and method for burning fuel | |
DE2364053C2 (en) | Combustion system | |
DE4330082C2 (en) | Burner for the stoichiometric combustion of liquid or gaseous fuel | |
DE2141575B2 (en) | BURNERS, IN PARTICULAR FOR GAS FUEL | |
AT404399B (en) | METHOD AND BURNER FOR BURNING IN PARTICULAR LIQUID FUELS | |
DE102010030904B4 (en) | Burner with tangential spiral inlet manifold |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Designated state(s): AT BE CH DE FR GB IT LI NL SE |
|
17P | Request for examination filed |
Effective date: 19840630 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE CH DE FR GB IT LI NL SE |
|
REF | Corresponds to: |
Ref document number: 33301 Country of ref document: AT Date of ref document: 19880415 Kind code of ref document: T |
|
REF | Corresponds to: |
Ref document number: 3470208 Country of ref document: DE Date of ref document: 19880505 |
|
ITF | It: translation for a ep patent filed | ||
GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) | ||
ET | Fr: translation filed | ||
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed | ||
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 19891218 Year of fee payment: 7 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 19891231 Year of fee payment: 7 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: SE Payment date: 19900123 Year of fee payment: 7 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: AT Payment date: 19900125 Year of fee payment: 7 |
|
ITTA | It: last paid annual fee | ||
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: NL Payment date: 19900131 Year of fee payment: 7 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: BE Payment date: 19900209 Year of fee payment: 7 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 19900320 Year of fee payment: 7 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Effective date: 19910110 Ref country code: AT Effective date: 19910110 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Effective date: 19910111 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: BE Effective date: 19910131 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Effective date: 19910801 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee | ||
NLV4 | Nl: lapsed or anulled due to non-payment of the annual fee | ||
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Effective date: 19910930 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Effective date: 19911001 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST |
|
EUG | Se: european patent has lapsed |
Ref document number: 84100182.9 Effective date: 19910910 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: CH Payment date: 19980112 Year of fee payment: 15 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19990131 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19990131 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |