EP0166913B1 - Burner for waste gas incineration - Google Patents
Burner for waste gas incineration Download PDFInfo
- Publication number
- EP0166913B1 EP0166913B1 EP85105537A EP85105537A EP0166913B1 EP 0166913 B1 EP0166913 B1 EP 0166913B1 EP 85105537 A EP85105537 A EP 85105537A EP 85105537 A EP85105537 A EP 85105537A EP 0166913 B1 EP0166913 B1 EP 0166913B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- burner
- high temperature
- mixing chamber
- burner according
- mixing
- 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
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23Q—IGNITION; EXTINGUISHING-DEVICES
- F23Q7/00—Incandescent ignition; Igniters using electrically-produced heat, e.g. lighters for cigarettes; Electrically-heated glowing plugs
- F23Q7/06—Incandescent ignition; Igniters using electrically-produced heat, e.g. lighters for cigarettes; Electrically-heated glowing plugs structurally associated with fluid-fuel burners
- F23Q7/10—Incandescent ignition; Igniters using electrically-produced heat, e.g. lighters for cigarettes; Electrically-heated glowing plugs structurally associated with fluid-fuel burners for gaseous fuel, e.g. in welding appliances
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- 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
- F23G7/061—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases with supplementary heating
- F23G7/063—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases with supplementary heating electric heating
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F9/00—Treating radioactively contaminated material; Decontamination arrangements therefor
- G21F9/02—Treating gases
Definitions
- the invention relates to a burner for burning exhaust gases with the aid of oxidizing agents, in particular exhaust gases from nuclear processes, consisting of a high-temperature part with mixing chambers and a post-reaction part.
- Systems for the combustion of pollutant-containing, combustible exhaust gases usually consist of a burner, a combustion chamber and a heat exchanger.
- concentration of the flammable exhaust gases produced fluctuates greatly in most technical processes, so that auxiliary firing must be available in order to ensure adequate combustion.
- auxiliary burners are usually operated with propane, natural gas or oil as the fuel gas.
- burners Depending on the operating mode and heat load, such burners must have so-called ignition devices, e.g. B. pilot burner, via flame detector, z. B. UV cells, and via control units, for. B. limiters, switches, controllers.
- ignition devices e.g. B. pilot burner
- flame detector e.g. B. UV cells
- control units for. B. limiters, switches, controllers.
- the flame monitor and control unit are coupled in the so-called burner control.
- various precisely prescribed time cycles for igniting, purging and reigniting the flame run in the control section of the burner control.
- the combustion of the exhaust gases mainly takes place in the flame of the burner, the so-called high-temperature zone, while the combustion chamber serves as a post-reaction zone.
- the pipes must normally have one control valve and one quick-closing valve each. However, all of these required technical facilities are potential sources of interference.
- soot is produced when the burner starts up due to frequent ignition attempts. This then clogs the subsequent filter devices and leads to operational interruptions. In addition, power failure leads to a spontaneous shutdown of the support flame. As a result, the burner control unit starts purging the combustion chamber with air or inert gas. In this case, too, soot is produced because exhaust gas continues to be present for combustion.
- This object was achieved in that two or more heating coils controlled by independent heating circuits are arranged in the high-temperature section and that four feeds for the oxidizing agent are tangentially arranged in the first of the mixing chambers arranged one behind the other and two feeds for the oxidizing agent are tangentially arranged in the further mixing chambers .
- the first mixing chamber is preferably flared towards the high temperature zone. It is also advantageous to choose the ratio of the mixing chamber outlet diameter D to the mixing chamber inlet diameter d of the first mixing chamber so that the value is between 1.2 and 1.5. It has also proven to be advantageous to be able to use tube inserts to make the free diameter of the high-temperature part variable.
- Such a burner is easy to handle and reliable, saves space and does not provide any additional secondary exhaust gases, as are inevitable in the case of auxiliary firing.
- the combustion of the pollutant-containing, combustible exhaust gases is divided into several sections with separate mixing chambers and separately controlled heating windings in Together with the tangential supply of the oxidizing agent, usually air, an optimal, practical quantitative conversion of the pollutants.
- Support firing can be dispensed with completely, so that no additional exhaust gases are generated.
- Figures 1 and 11 schematically show an exemplary embodiment of the burner according to the invention, wherein Figure I shows a longitudinal section and Figure II shows a cross section along the line A-B.
- the exhaust gases flow to the burner in the high-temperature section (18) through the connection (1) to the first mixing chamber (3) in the middle.
- the conical mixing chamber (3) In the conical mixing chamber (3) there are tangential feeds (2) for the oxidizing agent distributed over the circumference at four locations.
- the taper favors the mixing of the exhaust gas with the oxidizing agent.
- air or z. B. uses an air-oxygen mixture. It has proven to be advantageous if the opening ratio of the first mixing chamber (3), outlet diameter (D) to inlet diameter (d), is in the range from 1.2 to 1.5.
- the exhaust gas-air mixture flows after the first mixing chamber (3) into the first high-temperature zone (19) and ignites on the heating coil (6) of the first electrical heating circuit. Slightly substoichiometric combustion takes place in this first high-temperature zone (19).
- next mixing chamber (5) two tangential oxidants (air, oxygen or air-oxygen mixture) are also blown in excessively stoichiometrically via two inlets (8) and the mixture is further burned in the second high-temperature zone (20) with the help of the second heating coil (9).
- the way of arranging several mixing chambers (3, 5) and high-temperature zones (19, 20) one behind the other prevents overheating at one point on the burner. The formation of nitrogen oxides is also severely restricted.
- the gas flows through the end ring (10) and the flange connection (11) into the after-reaction part (17) of the burner.
- the end ring (10) is used primarily for heat dissipation and is preferably made of aluminum oxide.
- the after-reaction part (17) consists of an externally heated tube (14) with an internal displacer (13).
- the resulting annular space for example with a maximum annular gap of 100 mm, depending on the concentration of fissile in an exhaust gas originating from nuclear plants, is used for post-reaction at temperatures around 800 ° C.
- a ceramic tip (12) is attached to the high temperature part (18) on its front. Cooling connections (16) are located on the opposite side of the displacer (13).
- the individual parts (5, 6, 7, 8, 9, 10) of the high-temperature part (18) can be removed after the cover (4) has been removed.
- the flue gas that is still supplied is ignited on the hot burner block and burned safely.
- the system can then burn unburned without soot formation or release. Harmful gases are slowly removed.
Description
Die Erfindung betrifft einen Brenner zum Verbrennen von Abgasen mit Hilfe von Oxidationsmitteln, insbesondere von Abgasen aus kerntechnischen Prozessen, bestehend aus einem Hochtemperaturteil mit Mischkammern und einem Nachreaktionsteil.The invention relates to a burner for burning exhaust gases with the aid of oxidizing agents, in particular exhaust gases from nuclear processes, consisting of a high-temperature part with mixing chambers and a post-reaction part.
Das gesteigerte Umweltbewußtsein und die schärferen Abgasgesetze haben die Anwendung der thermischen Nachverbrennung in den letzten Jahren stark vorangetrieben.The increased environmental awareness and the stricter exhaust gas laws have strongly promoted the use of thermal post-combustion in recent years.
Üblicherweise bestehen Anlagen zur Verbrennung von schadstoffhaltigen, brennbaren Abgasen aus einem Brenner, einer Brennkammer und einem Wärmetauscher. Die Konzentration der entstehenden brennbaren Abgase ist bei den meisten technischen Prozessen stark schwankend, so daß, um eine ausreichende Verbrennung zu gewährleisten, eine Stützfeuerung vorhanden sein muß. Diese Stützbrenner werden normalerweise mit Propan, Erdgas oder Öl als Brenngas betrieben.Systems for the combustion of pollutant-containing, combustible exhaust gases usually consist of a burner, a combustion chamber and a heat exchanger. The concentration of the flammable exhaust gases produced fluctuates greatly in most technical processes, so that auxiliary firing must be available in order to ensure adequate combustion. These auxiliary burners are usually operated with propane, natural gas or oil as the fuel gas.
Für die Abgasverbrennung werden in der Regel sehr weite Betriebsbereiche der Brenner verlangt. Dem steht jedoch entgegen, daß sich die Leistung der meisten Verbrennungsvorrichtungen nicht unter 20 % des Maximalwertes drosseln- läßt, da die Brenner dann instabil werden und gegebenenfalls verlöschen.Very wide operating ranges of the burners are generally required for exhaust gas combustion. This is opposed to the fact that the performance of most combustion devices cannot be reduced below 20% of the maximum value, since the burners then become unstable and possibly go out.
Solche Brenner müssen je nach Betriebsart und Wärmelast über sogenannte Zündeinrichtungen, z. B. Zündbrenner, über Flammenwächter, z. B. UV-Zellen, und über Steuergeräte, z. B. Begrenzer, Schalter, Regler, verfügen. Die Kopplung von Flammenwächter und Steuergerät erfolgt im sogenannten Feuerungsautomat. Im Steuerungsteil des Feuerungsautomaten laufen, je nach Brennerleistung, verschiedene, genau vorgeschriebene Zeitzyklen zum Zünden, Spülen und Wiederzünden der Flamme ab.Depending on the operating mode and heat load, such burners must have so-called ignition devices, e.g. B. pilot burner, via flame detector, z. B. UV cells, and via control units, for. B. limiters, switches, controllers. The flame monitor and control unit are coupled in the so-called burner control. Depending on the burner output, various precisely prescribed time cycles for igniting, purging and reigniting the flame run in the control section of the burner control.
Die Verbrennung der Abgase erfolgt zum überwiegenden Teil in der Flamme des Brenners, der sogenannten Hochtemperaturzone, während die Brennkammer als Nachreaktionszone dient.The combustion of the exhaust gases mainly takes place in the flame of the burner, the so-called high-temperature zone, while the combustion chamber serves as a post-reaction zone.
Die bekannten Brenner zur Verbrennung von Abgasen benötigen einen erheblichen regelungstechnischen Aufwand. Hierzu kommen noch Rohrleitungen für den Brennstoff des Stützbrenners, für die Luftzufuhr des Stützbrenners, für den Brennstoff des Zündbrenners und für die Luft des Zündbrenners.The known burners for the combustion of exhaust gases require considerable control engineering effort. In addition there are pipes for the fuel of the auxiliary burner, for the air supply of the auxiliary burner, for the fuel of the pilot burner and for the air of the pilot burner.
Die Rohrleitungen müssen normalerweise über je ein Regelventil und über je ein Schnellschlußventil verfügen. Alle diese geforderten technischen Einrichtungen sind aber mögliche Störungsquellen.The pipes must normally have one control valve and one quick-closing valve each. However, all of these required technical facilities are potential sources of interference.
Die Anwendung dieser raumaufwendigen und störanfälligen Technologien zur Verbrennung von Abgasen in kerntechnischen Kontrollbereichen, insbesondere in der Boxentechnik, ist somit sehr problematisch.The use of these space-consuming and fault-prone technologies for the combustion of exhaust gases in nuclear control areas, particularly in box technology, is therefore very problematic.
So ist die Handhabung brennbarer Stoffe in geschlossenen Boxen nach Möglichkeit zu minimieren. Boxenraum ist teuer, für die erforderlichen Rohrleitungen wird aber erheblich Platz benötigt, zumal alle Einbauten mit der Manipulatortechnik handhabbar sein müssen. Außerdem produziert ein konventionell gefeuerter Brenner zusätzliches Abgas, was wiederum zur Vergrößerung der notwendigen Absolutfilter führt.The handling of flammable substances in closed boxes should be minimized where possible. Box room is expensive, but considerable space is required for the necessary pipelines, especially since all installations must be manageable with the manipulator technology. In addition, a conventionally fired burner produces additional exhaust gas, which in turn leads to the enlargement of the necessary absolute filters.
Unter Umständen wird beim Anfahren des Brenners durch häufige Zündversuche sehr viel Ruß produziert. Dieser verstopft dann die nachfolgenden Filtereinrichtungen und führt zu Betriebsunterbrechungen. Außerdem führt Stromausfall zu einer spontanen Abschaltung der Stützflamme. Dadurch wird durch den Feuerungsautomat die Spülung der Brennkammer mit Luft oder Inertgas eingeleitet. Auch in diesem Fall wird Ruß produziert, da weiterhin Abgas zur Verbrennung ansteht.Under certain circumstances, a lot of soot is produced when the burner starts up due to frequent ignition attempts. This then clogs the subsequent filter devices and leads to operational interruptions. In addition, power failure leads to a spontaneous shutdown of the support flame. As a result, the burner control unit starts purging the combustion chamber with air or inert gas. In this case, too, soot is produced because exhaust gas continues to be present for combustion.
Es war daher Aufgabe der vorliegenden Erfindung, einen Brenner zum Verbrennen von Abgasen mit Hilfe von Oxidationsmitteln, insbesondere von Abgasen aus kerntechnischen Prozessen zu entwickeln, bestehend aus einem Hochtemperaturteil mit Mischkammern und einem Nachreaktionsteil, der raumsparend und betriebssicher ist, wenig Sekundärabgas liefert, leicht handhabbar ist und kritikalitätssicher ausgeführt werden kann.It was therefore an object of the present invention to develop a burner for burning exhaust gases with the aid of oxidizing agents, in particular exhaust gases from nuclear processes, consisting of a high-temperature part with mixing chambers and a post-reaction part which is space-saving and reliable, provides little secondary exhaust gas, and is easy to handle is and can be executed critically.
Diese Aufgabe wurde erfindungsgemäß dadurch gelöst, daß im Hochtemperaturteil zwei oder mehrere von voneinander unabhängigen Heizkreisen gesteuerte Heizwicklungen angeordnet sind und daß in der ersten der hintereinander angeordneten Mischkammern tangential vier Zuführungen für das Oxidationsmittel und in den weiteren Mischkammern tangential jeweils zwei Zuführungen für das Oxidationsmittel angebracht sind.This object was achieved in that two or more heating coils controlled by independent heating circuits are arranged in the high-temperature section and that four feeds for the oxidizing agent are tangentially arranged in the first of the mixing chambers arranged one behind the other and two feeds for the oxidizing agent are tangentially arranged in the further mixing chambers .
Vorzugsweise ist die erste Mischkammer zur Hochtemperaturzone hin konisch erweitert. Weiterhin ist es vorteilhaft, das Verhältnis Mischkammerausgangsdurchmesser D zu Mischkammereingangsdurchmesser d der ersten Mischkammer so zu wählen, daß der Wert zwischen 1,2 und 1,5 liegt. Als günstig hat es sich auch herausgestellt, durch Rohreinsätze den freien Durchmesser des Hochtemperaturteils variabel gestalten zu können.The first mixing chamber is preferably flared towards the high temperature zone. It is also advantageous to choose the ratio of the mixing chamber outlet diameter D to the mixing chamber inlet diameter d of the first mixing chamber so that the value is between 1.2 and 1.5. It has also proven to be advantageous to be able to use tube inserts to make the free diameter of the high-temperature part variable.
Bei der Verwendung des Brenners in abgeschlossenen Boxen ist es vorteilhaft, den Hochtemperaturteil aus Einzelteilen zusammenzusetzen, die einzeln durch eine Deckelöffnung aus dem Gehäuse des Hochtemperaturteils entfernt werden können.When using the burner in closed boxes, it is advantageous to assemble the high-temperature part from individual parts, which can be removed individually from the housing of the high-temperature part through a cover opening.
Ein solcher Brenner ist leicht handhabbar und betriebssicher, raumsparend und liefert keine zusätzlichen Sekundärabgase, wie sie bei einer Stützfeuerung zwangsläufig entstehen.Such a burner is easy to handle and reliable, saves space and does not provide any additional secondary exhaust gases, as are inevitable in the case of auxiliary firing.
Die Aufteilung der Verbrennung der schadstoffhaltigen, brennbaren Abgase in mehrere Abschnitte mit gesonderten Mischkammern und gesondert gesteuerten Heizwicklungen erbringt im Zusammenwirken mit der tangentialen Zuführung des Oxidationsmittels, im Normalfall Luft, eine optimale, praktisch quantitative Umsetzung der Schadstoffe. Auf eine Stützfeuerung kann völlig verzichtet werden, so daß keine zusätzlichen Abgase entstehen.The combustion of the pollutant-containing, combustible exhaust gases is divided into several sections with separate mixing chambers and separately controlled heating windings in Together with the tangential supply of the oxidizing agent, usually air, an optimal, practical quantitative conversion of the pollutants. Support firing can be dispensed with completely, so that no additional exhaust gases are generated.
Die Abbildungen 1 und 11 zeigen schematisch eine beispielhafte Ausführungsform des erfindungsgemäßen Brenners, wobei Abbildung I einen Längsschnitt und Abbildung II einen Querschnitt entsprechend der Linie A-B wiedergibt.Figures 1 and 11 schematically show an exemplary embodiment of the burner according to the invention, wherein Figure I shows a longitudinal section and Figure II shows a cross section along the line A-B.
Die Abgase strömen dem Brenner im Hochtemperaturteil (18) durch den Anschluß (1) an der ersten Mischkammer (3) mittig zu. In der konischen Mischkammer (3) befinden sich an vier Stellen über den Umfang verteilt tangential angeordnete Zuführungen (2) für das Oxidationsmittel. Die Konizität begünstigt die Durchmischung des Abgases mit dem Oxidationsmittel. Hierfür wird vorzugsweise Luft oder z. B. ein Luft-Sauerstoffgemisch verwendet. Es hat sich als günstig herausgestellt, wenn das Öffnungsverhältnis der ersten Mischkammer (3), Austrittsdurchmesser (D) zu Eintrittsdurchmesser (d), im Bereich von 1,2 bis 1,5 liegt. Das Abgas-Luftgemisch strömt nach der ersten Mischkammer (3) in die erste Hochtemperaturzone (19) und zündet an der Heizwendel (6) des ersten elektrischen Heizkreises. In dieser ersten Hochtemperaturzone (19) findet eine leicht unterstöchiometrische Verbrennung statt.The exhaust gases flow to the burner in the high-temperature section (18) through the connection (1) to the first mixing chamber (3) in the middle. In the conical mixing chamber (3) there are tangential feeds (2) for the oxidizing agent distributed over the circumference at four locations. The taper favors the mixing of the exhaust gas with the oxidizing agent. For this purpose, air or z. B. uses an air-oxygen mixture. It has proven to be advantageous if the opening ratio of the first mixing chamber (3), outlet diameter (D) to inlet diameter (d), is in the range from 1.2 to 1.5. The exhaust gas-air mixture flows after the first mixing chamber (3) into the first high-temperature zone (19) and ignites on the heating coil (6) of the first electrical heating circuit. Slightly substoichiometric combustion takes place in this first high-temperature zone (19).
In der nächsten Mischkammer (5) wird über zwei Zuführungen (8) ebenfalls tangential Oxidationsmittel (Luft, Sauerstoff oder Luft-Sauerstoffgemisch) überstöchiometrisch eingeblasen und in der zweiten Hochtemperaturzone (20) mit Hilfe der zweiten Heizwendel (9) das Gemisch weiterverbrannt. Die Art, mehrere Mischkammern (3, 5) und Hochtemperaturzonen (19, 20) hintereinander anzuordnen, verhindert die Überhitzung an einer Stelle des Brenners. Ebenso wird die Bildung von Stickoxiden stark eingeschränkt. Nach der Reaktion in der letzten Hochtemperaturzone (20) strömt das Gas durch den Endring (10) und die Flanschverbindung (11) in den Nachreaktionsteil (17) des Brenners. Der Endring (10) dient vornehmlich der Wärmeabfuhr und ist vorzugsweise aus Aluminiumoxid angefertigt.In the next mixing chamber (5), two tangential oxidants (air, oxygen or air-oxygen mixture) are also blown in excessively stoichiometrically via two inlets (8) and the mixture is further burned in the second high-temperature zone (20) with the help of the second heating coil (9). The way of arranging several mixing chambers (3, 5) and high-temperature zones (19, 20) one behind the other prevents overheating at one point on the burner. The formation of nitrogen oxides is also severely restricted. After the reaction in the last high-temperature zone (20), the gas flows through the end ring (10) and the flange connection (11) into the after-reaction part (17) of the burner. The end ring (10) is used primarily for heat dissipation and is preferably made of aluminum oxide.
Der Nachreaktionsteil (17) besteht aus einem außen beheizten Rohr (14) mit innenliegendem Verdrängkörper (13). Der so entstehende Ringraum mit beispielsweise maximal 100 mm Ringspaltweite, je nach Spaltstoffkonzentration in einem aus kerntechnischen Anlagen stammenden Abgas, wird zur Nachreaktion bei Temperaturen um 800 °C verwendet. Zum Schutz des Verdrängkörpers (13) ist an dessen Vorderseite zum Hochtemperaturteil (18) hin eine keramische Spitze (12) angebracht. An der gegenüberliegenden Seite des Verdrängkörpers (13) befinden sich Kühlanschlüsse (16).The after-reaction part (17) consists of an externally heated tube (14) with an internal displacer (13). The resulting annular space, for example with a maximum annular gap of 100 mm, depending on the concentration of fissile in an exhaust gas originating from nuclear plants, is used for post-reaction at temperatures around 800 ° C. To protect the displacer (13), a ceramic tip (12) is attached to the high temperature part (18) on its front. Cooling connections (16) are located on the opposite side of the displacer (13).
Die Rauchgase entweichen durch den Stutzen (22), der radial am Ende des Nachreaktionsteils (17) angebracht ist.The flue gases escape through the nozzle (22), which is attached radially at the end of the after-reaction part (17).
Die Möglichkeit, den freien Durchmesser des Hochtemperaturteils (18) durch Rohreinsätze (7) zur Anpassung an verschiedene Spaltstoffgehalte zu variieren, macht den Brenner vor allem auch für kerntechnische Einsätze brauchbar. Außerdem dienen die Rohreinsätze (7) zum Schutz der Heizwendel (6, 9) vor Korrosion und Übertemperatur.The possibility of varying the free diameter of the high-temperature part (18) by means of tube inserts (7) to adapt to different fuel contents makes the burner particularly useful for nuclear applications. In addition, the pipe inserts (7) serve to protect the heating coil (6, 9) against corrosion and excess temperature.
Für den kerntechnischen Boxenbetrieb stellt sich als besonders günstig dar, daß die Einzelteile (5, 6, 7, 8, 9, 10) des Hochtemperaturteils (18) nach Entfernen des Deckels (4) herausnehmbar sind.For nuclear box operation it is particularly favorable that the individual parts (5, 6, 7, 8, 9, 10) of the high-temperature part (18) can be removed after the cover (4) has been removed.
Die Einfachheit der Regelung, es werden nur elektrische Heizungen mit Hilfe von Thermoelementen geregelt, sowie das Fehlen der Anschlußleitungen herkömmlicher Brenner, machen den Brenner sehr betriebssicher und raumsparend. Hervorzuheben sind vor allem die absolute Zündsicherheit und der gute Ausbrand in weiten Bereichen des Abgas-Luftverhältnisses. Wichtige Meßstellen, vor allem zur Regelung der Heizungen werden doppelt überwacht. Am Ende des Hochtemperaturteils (18) befindet sich die vorgeschriebene Meßstelle (21) für die Brennkammeraustrittstemperatur. Der Brenner kann auch mit den vorgeschriebenen Einspeiseverriegelungen ausgerüstet werden.The simplicity of the control, only electric heaters are controlled with the help of thermocouples, as well as the lack of connecting cables for conventional burners, make the burner very reliable and space-saving. Particularly noteworthy are the absolute safety against ignition and the good burnout in wide areas of the exhaust gas / air ratio. Important measuring points, especially for controlling the heating, are monitored twice. At the end of the high temperature part (18) there is the prescribed measuring point (21) for the combustion chamber outlet temperature. The burner can also be equipped with the prescribed feed interlocks.
Bei Stromausfall wird für eine gewisse zeit das noch zugeführte Abgas am heißen Brennerstein gezündet und sicher verbrannt. Die Anlage kann dann ohne Rußbildung bzw. Freisetzung unverbrannter. Schadgase langsam abgefahren werden.In the event of a power failure, the flue gas that is still supplied is ignited on the hot burner block and burned safely. The system can then burn unburned without soot formation or release. Harmful gases are slowly removed.
Claims (5)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3420408A DE3420408C2 (en) | 1984-06-01 | 1984-06-01 | Burners for burning exhaust gases |
| DE3420408 | 1984-06-01 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0166913A1 EP0166913A1 (en) | 1986-01-08 |
| EP0166913B1 true EP0166913B1 (en) | 1987-08-19 |
Family
ID=6237350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP85105537A Expired EP0166913B1 (en) | 1984-06-01 | 1985-05-07 | Burner for waste gas incineration |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0166913B1 (en) |
| DE (2) | DE3420408C2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4312144C1 (en) * | 1993-04-14 | 1994-04-14 | Gerhard Dr Lindemann | Thermic decomposition of toxic gas material in sapphire high temp. furnace - involves sapphire used as walling material for reaction chamber with furnace operating at 1200 to 2000 deg. C |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE711023C (en) * | 1937-05-25 | 1941-09-25 | Kloeckner Humboldt Deutz Akt G | Device for burning the excess gas produced in generator gas generation systems and the exhaust gases from the gas engines operated with the generator gas |
| FR1446303A (en) * | 1964-01-10 | 1966-07-22 | Recombustion and filtering of automobile exhaust gases | |
| DE2227389A1 (en) * | 1972-06-06 | 1973-12-20 | Norris B Coulp | DEVICE FOR BURNING GASES |
| US4051193A (en) * | 1975-10-14 | 1977-09-27 | Allied Chemical Corporation | Process for producing ethylene from ethane |
-
1984
- 1984-06-01 DE DE3420408A patent/DE3420408C2/en not_active Expired
-
1985
- 1985-05-07 DE DE8585105537T patent/DE3560495D1/en not_active Expired
- 1985-05-07 EP EP85105537A patent/EP0166913B1/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| EP0166913A1 (en) | 1986-01-08 |
| DE3560495D1 (en) | 1987-09-24 |
| DE3420408A1 (en) | 1985-12-05 |
| DE3420408C2 (en) | 1986-07-31 |
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