EP1258677A2 - Apparatus for cleaning exhaust gases from industrial processes - Google Patents
Apparatus for cleaning exhaust gases from industrial processes Download PDFInfo
- Publication number
- EP1258677A2 EP1258677A2 EP02009627A EP02009627A EP1258677A2 EP 1258677 A2 EP1258677 A2 EP 1258677A2 EP 02009627 A EP02009627 A EP 02009627A EP 02009627 A EP02009627 A EP 02009627A EP 1258677 A2 EP1258677 A2 EP 1258677A2
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- EP
- European Patent Office
- Prior art keywords
- combustion chamber
- cleaned
- heat exchanger
- exhaust gas
- gas
- 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.)
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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
- F23G7/065—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases with supplementary heating using gaseous or liquid fuel
- F23G7/066—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases with supplementary heating using gaseous or liquid fuel preheating the waste gas by the heat of the combustion, e.g. recuperation type incinerator
Definitions
- the invention relates to a device for cleaning Exhaust gases from industrial processes, especially one thermal afterburning device, with a combustion chamber, in which the exhaust gas to be cleaned is burned, and a heat exchanger in which the exhaust gas to be cleaned is preheated, the heat exchanger facilities for spiral guidance of the exhaust gas to be cleaned has the combustion chamber.
- Thermal afterburners are in one Numerous applications, for example in suction of exhaust gases from paint shops.
- Purification of the exhaust gas from contained pollutants the exhaust gas is passed through a combustion chamber and the pollutants contained therein are burned. It is it also known the exhaust gas supplied to the combustion preheat beforehand in a heat exchanger.
- Such The device is, for example, from DE 199 10 687 A1 known.
- a device of the aforementioned Art is known for example from US 3,311,456.
- a other device for cleaning exhaust gases is in the DE 693 00 289 T2 described.
- Exhaust gas through pipes aligned parallel to the combustion chamber led along the combustion chamber.
- the cleaned exhaust gas is screwed around the combustion chamber via baffles led around, so that the hot clean gas helically on the pipes running parallel to the combustion chamber meets.
- the invention is based on the object of a device to create of the type mentioned in the Use is particularly economical.
- the heat exchanger is preferably designed such that the exhaust gas to be cleaned between the combustion chamber and one the housing enclosing the combustion chamber is guided.
- both the combustion chamber and the housing surrounding the combustion chamber is cylindrical. In this way, particularly good ones can be Reach flow conditions of the exhaust gases to be cleaned.
- Exhaust gases around the combustion chamber is in a preferred embodiment a helix is provided between the Combustion chamber and the housing surrounding the combustion chamber is arranged and essentially of a strip of material, preferably made of the same material as that remaining parts of the device, in particular made of stainless steel, is formed.
- the device a device for recycling the hot clean gases on.
- the repatriation facility the hot clean gas preferably has a Guide housing surrounding the combustion chamber.
- the spiral for the spiral guidance of the exhaust gases to be cleaned the combustion chamber is then preferably between this guide housing and the outer, enclosing the combustion chamber Housing arranged.
- the heat exchanger Device for carrying out the hot clean gas provided by the exhaust gas to be cleaned.
- this is returned through the guide housing then reapply clean gas through that cleaning exhaust gas performed.
- the facility to carry the hot clean gases through the to be cleaned Exhaust gas arranged spirally around the combustion chamber.
- This device is designed in such a spiral that they counter to the spiraling of the lead cleaning exhaust gases is aligned.
- the opposite is here to understand in the sense of the direction of rotation, so that the cross the relevant facilities again and again, especially at an angle of about 90 °.
- the device for carrying out the hot clean gas by the gas to be cleaned points in a preferred Embodiment a variety of heat exchanger hoses or pipes on, in the coils to the heat exchanger hoses adapted passages are provided, so that the heat exchanger hoses also in the opposite direction to the Device for the spiral guidance of the items to be cleaned Exhaust gases are feasible around the combustion chamber.
- a flow straightener in the exit area of the combustion chamber intended. This makes it even Distribution of those emerging from the combustion chamber guaranteed hot gases.
- a bypass opening is preferably additionally provided, which is conveniently controllable, so that in In case of overpressure or too high a temperature hot gas coming from the combustion chamber can be discharged to the outside is.
- a catalyst is provided in the exit area of the combustion chamber.
- the catalyst is preferably from a large number of individual catalysts trained, through which the hot gas must flow.
- the plurality of catalysts in the inlet area is preferred the device for returning the hot Clean gas arranged.
- Fig. 1 is a device 1 for cleaning exhaust gases represented from industrial processes.
- the device 1 has an outer cylindrical housing 14 on, in which a combustion chamber 7 is arranged centrally, which is also cylindrical.
- the combustion chamber 7 has a burner 4 in the left end area 6 fuel supplied through a central feed line becomes.
- an inlet port 21 In the right end area of the housing 14 of the device 1 is an inlet port 21 through which Raw gas can enter and then in the outer area of the Device along the formed as a spiral 15 Device for spiral guidance several times around the Combustion chamber 7 is guided around, then in the area of Burner 4 enters the combustion chamber 7 and there is burned.
- flow straighteners 8 are arranged through which the burn burnt gases.
- Bypass valve 13 Behind it is one Bypass valve 13 arranged, usually in the operating state closed is. Furthermore are behind the Flow straightener 8 a catalyst 9 and a A plurality of catalysts 9 in the entrance area to one arranged around the combustion chamber 7 annular gap 10, through which the hot combustion air passes.
- a guide housing 16 is arranged, being between this guide housing 16 and the Combustion chamber 7 of said annular gap 10 is through the hot air along the combustion chamber 7 in the direction of the burner 4 is passed there at the end of the annular gap 10 passed into a front reversible collecting chamber 11 and from there into the heat exchanger hoses 17 trained device to carry out the hot Clean gas is passed through the exhaust gas to be cleaned.
- heat exchanger hoses 17 are also spiral led around the combustion chamber, the opposite led to the coil 15 around the combustion chamber 7 are.
- overall 36 heat exchanger hoses 17 provided in parallel to each other. The heat exchanger hoses 17 are to the outlet connection shown on the right in FIG. 1 12 performed, on which the clean gas generated ultimately exit.
- FIG. 2 is a cross-sectional view along the line A-A shown in Fig. 1. It's from the outside in Housing 14 and then to recognize the guide housing 16. Between the housing 14 and the guide housing 16 this is achieved by exhaust gas supplied to the inlet port 21. Within of the guide housing 16, the combustion chamber 7 is positioned, being between combustion chamber 7 and guide housing 16 the annular gap 10 is formed by the the hot clean gas is returned. In the entrance area a total of 12 openings are provided in the annular gap 10, in which catalysts 9 are arranged by which flow through the hot gas coming from the combustion chamber 7 got to. Central is in the cross-sectional view the bypass flap 13 can also be seen in the end region the combustion chamber 7 is arranged.
- FIG. 3 is a side view of the invention Device 1 with a housing shown transparently 14 shown. Inside the housing 14 is that Guide housing 16 to recognize the device for spiral guidance of the exhaust gas to be cleaned the combustion chamber is in the form of a spiral 15, so that the exhaust gas or raw gas to be cleaned is directed towards the arrows 20 parallel to the spiral 15 around the combustion chamber 7 to the entrance area of the combustion chamber 7 is guided in the area of the burner 4. Still is exemplary of the large number of heat exchanger hoses a heat exchanger hose 17 shown. These run also spirally around the combustion chamber or around that Guide housing 16 and always meet the Spiral 15, wherein in the spiral 15 to the heat exchanger hoses 17 adapted passages 18 are provided are. The emerging clean gas flows in the direction of the Arrows 22.
- FIG. 4 is a perspective view of the helix 15 in which the plurality of passages 18 for the plurality of heat exchanger hoses 17 are provided is.
- the exhaust gas or raw gas to be cleaned occurs during operation through the inlet connector 21 into the device 1.
- the exhaust gas to be cleaned is then distributed in the front Distribution chamber 2 and then flows through the heat exchanger 3, especially along the spiral around the Combustion chamber 7 leading helix 15.
- the exhaust gas on the one hand by the from the combustion chamber 7 or Annular gap 10 emitted heat and on the other hand from the through the heat exchanger 3 leading device for recirculation of the hot clean gas, namely the heat exchanger hoses 17, heated. Due to the forced management of the Spiral 15 remains the incoming raw gas or exhaust gas comparatively long in the heat exchanger 3 and has there to go a long way. The way depends on the Number of turns of the helix.
- the exhaust gas is thrice around the combustion chamber led around.
- the preheated in this way Exhaust gas enters the combustion chamber 7 in the region 5 and also serves as combustion air for the through the Feed 6 performed fuel and is from there the burner 4 burned. This takes place in the combustion chamber 7 actual reaction of the pollutants contained in the exhaust gas due to the high temperature and the high excess of combustion air.
- a temperature controller holds the Reaction temperature in the combustion chamber 7 using a Fuel flow regulator constant. They are called this Pre-cleaned gases flow into the combustion chamber 7 in Arrow direction through the flow straightener 8 and are distributed evenly over the entire cross-section of the combustion chamber.
- the catalyst 9 which is preferably a platinum catalyst is formed with surrounding ceramic fibers, and react with the excess residual oxygen and remaining pollutants.
- the gases cleaned in this way flow through the annular gap 10 into the front reversible collecting chamber 11 and are distributed in the heat exchanger hoses 17.
- the heat exchanger hoses 17 are helical or spiral with reverse direction of rotation like that Helix 15 passed around the combustion chamber 7 and perform that cleaned gas to the outlet port 12.
- the at the end of the Combustion chamber 7 arranged bypass valve 13 is normal closed and gives in an emergency, for example the cleaned gas directly at an impermissibly high temperature in the outlet port 12. In this way, in Emergency bypassed the heat exchanger 3, so that then Temperature in the combustion chamber 7 drops and the excess temperature is lowered.
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- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Incineration Of Waste (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
Description
Die Erfindung betrifft eine Vorrichtung zur Reinigung von Abgasen aus industriellen Prozessen, insbesondere eine thermische Nachverbrennungsvorrichtung, mit einer Brennkammer, in der das zu reinigende Abgas verbrannt wird, und einem Wärmetauscher, in dem das zu reinigende Abgas vorgewärmt wird, wobei der Wärmetauscher Einrichtungen zur spiralförmigen Führung des zu reinigenden Abgases um die Brennkammer aufweist.The invention relates to a device for cleaning Exhaust gases from industrial processes, especially one thermal afterburning device, with a combustion chamber, in which the exhaust gas to be cleaned is burned, and a heat exchanger in which the exhaust gas to be cleaned is preheated, the heat exchanger facilities for spiral guidance of the exhaust gas to be cleaned has the combustion chamber.
Thermische Nachverbrennungsvorrichtungen werden in einer Vielzahl von Anwendungen, beispielsweise bei der Absaugung von Abgasen von Lackieranlagen, eingesetzt. Zur Reinigung des Abgases von darin enthaltenen Schadstoffen wird das Abgas durch eine Brennkammer geführt und die darin enthaltenen Schadstoffe werden verbrannt. Dabei ist es auch bekannt, das der Verbrennung zugeführte Abgas vorher in einem Wärmetauscher vorzuerwärmen. Eine derartige Vorrichtung ist beispielsweise aus der DE 199 10 687 A1 bekannt. Eine Vorrichtung der eingangs genannten Art ist beispielsweise aus der US 3,311,456 bekannt. Eine andere Vorrichtung zur Reinigung von Abgasen wird in der DE 693 00 289 T2 beschrieben. Hier wird das zu reinigende Abgas durch parallel zur Brennkammer ausgerichtete Rohre an der Brennkammer entlang geführt. Das gereinigte Abgas wird über Ablenkplatten schraubenförmig um die Brennkammer herumgeführt, so daß das heiße Reingas schraubenförmig auf die parallel zur Brennkammer laufenden Rohre trifft.Thermal afterburners are in one Numerous applications, for example in suction of exhaust gases from paint shops. to Purification of the exhaust gas from contained pollutants the exhaust gas is passed through a combustion chamber and the pollutants contained therein are burned. It is it also known the exhaust gas supplied to the combustion preheat beforehand in a heat exchanger. Such The device is, for example, from DE 199 10 687 A1 known. A device of the aforementioned Art is known for example from US 3,311,456. A other device for cleaning exhaust gases is in the DE 693 00 289 T2 described. Here is what is to be cleaned Exhaust gas through pipes aligned parallel to the combustion chamber led along the combustion chamber. The cleaned exhaust gas is screwed around the combustion chamber via baffles led around, so that the hot clean gas helically on the pipes running parallel to the combustion chamber meets.
Der Erfindung liegt nun die Aufgabe zugrunde, eine Vorrichtung der eingangs genannten Art zu schaffen, die im Einsatz besonders wirtschaftlich ist.The invention is based on the object of a device to create of the type mentioned in the Use is particularly economical.
Die Lösung dieser Aufgabe erfolgt mit einer Vorrichtung mit den Merkmalen des Patentanspruchs 1. Vorteilhafte Weiterbildungen der Erfindung sind in den Unteransprüchen beschrieben.This object is achieved with a device with the features of claim 1. Advantageous Further developments of the invention are in the subclaims described.
Erfindungswesentlich ist, daß bei einer Vorrichtung zur Reinigung von Abgasen aus industriellen Prozessen mit einer Brennkammer und einem Wärmetauscher in dem Wärmetauscher Einrichtungen zur spiralförmigen Führung des zu reinigenden Abgases um die Brennkammer vorgesehen sind. Auf diese Weise wird das zu reinigende Abgas besonders gut auf alle äußeren Bereiche der Brennkammer verteilt und hat in diesem Bereich eine besonders hohe Verweildauer, so daß das zu reinigende Abgas besonders gut vorgewärmt und erhitzt werden kann und auf diese Weise der Reinigungsprozeß besonders gut und wirtschaftlich erfolgt. Zudem ist eine solche Einrichtung zur spiralförmigen Führung einfach und preisgünstig herstellbar.It is essential to the invention that in a device for Purification of exhaust gases from industrial processes with a combustion chamber and a heat exchanger in the heat exchanger Devices for the spiral guidance of the cleaning exhaust gas are provided around the combustion chamber. In this way, the exhaust gas to be cleaned becomes special well distributed over all outer areas of the combustion chamber and has a particularly long stay in this area, so that the exhaust gas to be cleaned is particularly good can be preheated and heated and this way the cleaning process is particularly good and economical. In addition, such a device for spiral Guide easy and inexpensive to manufacture.
Dabei ist der Wärmetauscher bevorzugt so ausgebildet, daß das zu reinigende Abgas zwischen der Brennkammer und einem die Brennkammer umschließenden Gehäuse geführt ist. Günstigerweise sind dabei sowohl die Brennkammer als auch das die Brennkammer umgebende Gehäuse zylinderförmig ausgebildet. Auf diese Weise lassen sich besonders gute Strömungsverhältnisse der zu reinigenden Abgase erreichen. Zur spiralförmigen Führung der zu reinigenden Abgase um die Brennkammer ist in einer bevorzugten Ausführungsform eine Wendel vorgesehen, die zwischen der Brennkammer und dem die Brennkammer umschließenden Gehäuse angeordnet ist und im wesentlichen von einem Materialstreifen, bevorzugt aus dem gleichen Material wie die übrigen Teile der Vorrichtung, insbesondere aus Edelstahl, gebildet ist.The heat exchanger is preferably designed such that the exhaust gas to be cleaned between the combustion chamber and one the housing enclosing the combustion chamber is guided. Conveniently, both the combustion chamber and the housing surrounding the combustion chamber is cylindrical. In this way, particularly good ones can be Reach flow conditions of the exhaust gases to be cleaned. For spiral guidance of the items to be cleaned Exhaust gases around the combustion chamber is in a preferred embodiment a helix is provided between the Combustion chamber and the housing surrounding the combustion chamber is arranged and essentially of a strip of material, preferably made of the same material as that remaining parts of the device, in particular made of stainless steel, is formed.
In einer bevorzugten Ausführungsform weist die Vorrichtung eine Einrichtung zur Rückführung der heißen Reingase auf. Das bedeutet, daß die aus der Brennkammer austretenden heißen Reingase nicht sofort nach außen abgegeben werden, sondern durch die Vorrichtung zurückgeführt werden, um zusätzlich an der Erwärmung der zu reinigenden Abgase teilzunehmen. Dadurch läßt sich ein besonders hoher Wirkungsgrad erreichen. Die Einrichtung zur Rückführung der heißen Reingase weist bevorzugt ein die Brennkammer umgebendes Führungsgehäuse auf. Die Wendel zur spiralförmigen Führung der zu reinigenden Abgase um die Brennkammer ist dann bevorzugt zwischen diesem Führungsgehäuse und dem äußeren, die Brennkammer umschließenden Gehäuse angeordnet.In a preferred embodiment, the device a device for recycling the hot clean gases on. This means that those emerging from the combustion chamber hot clean gases are not immediately released to the outside but are returned through the device, in addition to the heating of the items to be cleaned Exhaust gases to participate. This makes a special one achieve high efficiency. The repatriation facility the hot clean gas preferably has a Guide housing surrounding the combustion chamber. The spiral for the spiral guidance of the exhaust gases to be cleaned the combustion chamber is then preferably between this guide housing and the outer, enclosing the combustion chamber Housing arranged.
In dem Wärmetauscher ist erfindungsgemäß noch eine zusätzliche Einrichtung zur Durchführung des heißen Reingases durch das zu reinigende Abgas vorgesehen. Insbesondere wird dabei das durch das Führungsgehäuse rückgeführte heiße Reingas dann noch einmal durch das zu reinigende Abgas durchgeführt. Dabei ist die Einrichtung zur Durchführung der heißen Reingase durch das zu reinigende Abgas spiralförmig um die Brennkammer angeordnet. According to the invention there is an additional one in the heat exchanger Device for carrying out the hot clean gas provided by the exhaust gas to be cleaned. In particular this is returned through the guide housing then reapply clean gas through that cleaning exhaust gas performed. Here is the facility to carry the hot clean gases through the to be cleaned Exhaust gas arranged spirally around the combustion chamber.
Diese Einrichtung ist derart spiralförmig ausgelegt, daß sie gegensinnig zu der spiralförmigen Führung der zu reinigenden Abgase ausgerichtet ist. Gegensinnig ist hier im Sinne der Drehrichtung zu verstehen, so daß sich die entsprechenden Einrichtungen immer wieder kreuzen, insbesondere unter einem Winkel von etwa 90°.This device is designed in such a spiral that they counter to the spiraling of the lead cleaning exhaust gases is aligned. The opposite is here to understand in the sense of the direction of rotation, so that the cross the relevant facilities again and again, especially at an angle of about 90 °.
Die Einrichtung zur Durchführung des heißen Reingases durch das zu reinigende Gas weist in einer bevorzugten Ausführungsform eine Vielzahl von Wärmetauscherschläuchen oder -rohren auf, wobei in den Wendeln an die Wärmetauscherschläuche angepaßte Durchlässe vorgesehen sind, so daß die Wärmetauscherschläuche auch gegensinnig zu der Einrichtung zur spiralförmigen Führung der zu reinigenden Abgase um die Brennkammer führbar sind.The device for carrying out the hot clean gas by the gas to be cleaned points in a preferred Embodiment a variety of heat exchanger hoses or pipes on, in the coils to the heat exchanger hoses adapted passages are provided, so that the heat exchanger hoses also in the opposite direction to the Device for the spiral guidance of the items to be cleaned Exhaust gases are feasible around the combustion chamber.
In einer anderen bevorzugten Weiterbildung der Erfindung ist im Ausgangsbereich der Brennkammer ein Strömungsgleichrichter vorgesehen. Durch diesen wird eine gleichmäßige Verteilung der aus der Brennkammer austretenden heißen Gase gewährleistet. Im Ausgangsbereich der Brennkammer ist ergänzend bevorzugt eine Bypassöffnung vorgesehen, die günstigerweise steuerbar ist, so daß im Falle eines Überdrucks oder einer zu hohen Temperatur das aus der Brennkammer kommende heiße Gas nach außen ableitbar ist.In another preferred development of the invention is a flow straightener in the exit area of the combustion chamber intended. This makes it even Distribution of those emerging from the combustion chamber guaranteed hot gases. In the exit area of the combustion chamber a bypass opening is preferably additionally provided, which is conveniently controllable, so that in In case of overpressure or too high a temperature hot gas coming from the combustion chamber can be discharged to the outside is.
Weiterhin ist bevorzugt im Ausgangsbereich der Brennkammer ein Katalysator vorgesehen. Der Katalysator ist bevorzugt aus einer Vielzahl von einzelnen Katalysatoren ausgebildet, durch die das heiße Gas hindurchströmen muß. Bevorzugt ist die Mehrzahl von Katalysatoren im Eintrittsbereich der Einrichtung zur Rückführung des heißen Reingases angeordnet. It is also preferred in the exit area of the combustion chamber a catalyst is provided. The catalyst is preferably from a large number of individual catalysts trained, through which the hot gas must flow. The plurality of catalysts in the inlet area is preferred the device for returning the hot Clean gas arranged.
Nachfolgend wird die Erfindung anhand eines in der Zeichnung dargestellten bevorzugten Ausführungsbeispiels weiter erläutert. Im einzelnen zeigen die schematischen Darstellungen in:
- Fig. 1:
- eine geschnittene Seitenansicht einer erfindungsgemäßen Vorrichtung;
- Fig. 2:
- eine geschnittene Ansicht gemäß der Linie A-A in Fig. 1;
- Fig. 3:
- eine Seitenansicht der erfindungsgemäßen Vorrichtung mit transparent dargestelltem Gehäuse und
- Fig. 4:
- eine perspektivische Ansicht einer Wendel der Vorrichtung.
- Fig. 1:
- a sectional side view of a device according to the invention;
- Fig. 2:
- a sectional view taken along line AA in Fig. 1;
- Fig. 3:
- a side view of the device according to the invention with transparent housing and
- Fig. 4:
- a perspective view of a coil of the device.
In Fig. 1 ist eine Vorrichtung 1 zur Reinigung von Abgasen
aus industriellen Prozessen dargestellt. Die Vorrichtung
1 weist ein äußeres zylinderförmiges Gehäuse 14
auf, in dem zentral eine Brennkammer 7 angeordnet ist,
die ebenfalls zylinderförmig ausgebildet ist. Die Brennkammer
7 hat im linken Endbereich einen Brenner 4, wobei
durch eine zentrale Zuleitung 6 Brennstoff zugeführt
wird. Im rechten Endbereich des Gehäuses 14 der Vorrichtung
1 ist ein Eingangsstutzen 21 angeordnet, durch den
Rohgas eintreten kann und dann im äußeren Bereich der
Vorrichtung entlang der als Wendel 15 ausgebildeten
Einrichtung zur spiralförmigen Führung mehrfach um die
Brennkammer 7 herumgeführt wird, dann im Bereich des
Brenners 4 in die Brennkammer 7 eintritt und dort
verbrannt wird. Im rechten Endbereich der Brennkammer 7
sind Strömungsgleichrichter 8 angeordnet, durch die die
verbrannten Gase hindurchströmen. Dahinter ist eine
Bypassklappe 13 angeordnet, die üblicherweise im Betriebszustand
geschlossen ist. Weiterhin sind hinter dem
Strömungsgleichrichter 8 ein Katalysator 9 bzw. eine
Mehrzahl von Katalysatoren 9 im Eingangsbereich zu einem
die Brennkammer 7 umschließenden Ringspalt 10 angeordnet,
durch die die heiße Verbrennungsluft hindurchtritt. Um
die Brennkammer 7 ist ein Führungsgehäuse 16 angeordnet,
wobei sich zwischen diesem Führungsgehäuse 16 und der
Brennkammer 7 der genannte Ringspalt 10 befindet, durch
den die heiße Luft entlang der Brennkammer 7 in Richtung
des Brenners 4 geleitet wird, dort am Ende des Ringspaltes
10 in eine vordere Wendesammelkammer 11 geleitet
wird und von dort in die als Wärmetauscherschläuche 17
ausgebildete Einrichtung zur Durchführung des heißen
Reingases durch das zu reinigende Abgas geleitet wird.
Diese Wärmetauscherschläuche 17 sind ebenfalls spiralförmig
um die Brennkammer geführt, wobei diese entgegengesetzt
zu der Wendel 15 um die Brennkammer 7 geführt
sind. In der dargestellten Ausführungsform sind insgesamt
36 Wärmetauscherschläuche 17 vorgesehen, die parallel
zueinander verlaufen. Die Wärmetauscherschläuche 17 sind
zu dem rechts in der Figur 1 dargestellten Ausgangsstutzen
12 geführt, an dem das erzeugte Reingas letztlich
austritt.In Fig. 1 is a device 1 for cleaning exhaust gases
represented from industrial processes. The device
1 has an outer
In Fig. 2 ist eine Querschnittansicht entlang der Linie
A-A in Fig. 1 dargestellt. Von außen nach innen ist das
Gehäuse 14 und dann das Führungsgehäuse 16 zu erkennen.
Zwischen Gehäuse 14 und Führungsgehäuse 16 wird das durch
den Eingangsstutzen 21 zugeführte Abgas geleitet. Innerhalb
des Führungsgehäuses 16 ist die Brennkammer 7 positioniert,
wobei zwischen Brennkammer 7 und Führungsgehäuse
16 der Ringspalt 10 ausgebildet ist, durch den
das heiße Reingas zurückgeführt wird. Im Eingangsbereich
des Ringspaltes 10 sind insgesamt 12 Öffnungen vorgesehen,
in denen Katalysatoren 9 angeordnet sind, durch
die das aus der Brennkammer 7 kommende heiße Gas hindurchströmen
muß. Zentral ist in der Querschnittsansicht
auch die Bypassklappe 13 zu erkennen, die im Endbereich
der Brennkammer 7 angeordnet ist.2 is a cross-sectional view along the line
A-A shown in Fig. 1. It's from the outside in
In Fig. 3 ist eine Seitenansicht der erfindungsgemäßen
Vorrichtung 1 mit einem transparent dargestellten Gehäuse
14 dargestellt. Im Inneren des Gehäuses 14 ist das
Führungsgehäuse 16 zu erkennen, um das die Einrichtung
zur spiralförmigen Führung des zu reinigenden Abgases um
die Brennkammer in Form einer Wendel 15 ausgebildet ist,
so daß das zu reinigende Abgas oder Rohgas in Richtung
der Pfeile 20 parallel zu der Wendel 15 spiralförmig um
die Brennkammer 7 zu dem Eingangsbereich der Brennkammer
7 im Bereich des Brenners 4 geführt wird. Weiterhin ist
von der Vielzahl von Wärmetauscherschläuchen exemplarisch
ein Wärmetauscherschlauch 17 dargestellt. Diese verlaufen
ebenfalls spiralförmig um die Brennkammer bzw. um das
Führungsgehäuse 16 und treffen immer wieder auf die
Wendel 15, wobei in der Wendel 15 an die Wärmetauscherschläuche
17 angepaßte Durchlässe 18 vorgesehen
sind. Das austretende Reingas strömt in Richtung der
Pfeile 22.3 is a side view of the invention
Device 1 with a housing shown transparently
14 shown. Inside the
In Fig. 4 ist eine perspektivische Ansicht der Wendel 15
dargestellt, in der die Vielzahl von Durchlässen 18 für
die Vielzahl von Wärmetauscherschläuchen 17 vorgesehen
ist.4 is a perspective view of the
Im Betrieb tritt das zu reinigende Abgas oder Rohgas
durch den Eingangsstutzen 21 in die Vorrichtung 1 ein.
Das zu reinigende Abgas verteilt sich dann in der vorderen
Verteilkammer 2 und strömt dann durch den Wärmetauscher
3, insbesondere entlang der spiralförmig um die
Brennkammer 7 führenden Wendel 15. Dabei wird das Abgas
einerseits durch die von der Brennkammer 7 bzw. dem
Ringspalt 10 abgegebenen Wärme und andererseits von der
durch den Wärmetauscher 3 führenden Einrichtung zur Rückführung
des heißen Reingases, nämlich den Wärmetauscherschläuchen
17, erwärmt. Durch die Zwangsführung der
Wendel 15 verbleibt das eintretende Rohgas oder Abgas
vergleichsweise lange in dem Wärmetauscher 3 und hat dort
einen langen Weg zurückzulegen. Der Weg hängt ab von der
Anzahl der Windungen der Wendel. Im dargestellten Ausführungsbeispiel
wird das Abgas dreimal um die Brennkammer
herumgeführt. Das auf diese Weise vorgewärmte
Abgas tritt im Bereich 5 in die Brennkammer 7 ein und
dient gleichzeitig als Verbrennungsluft für den durch die
Zuleitung 6 durchgeführten Brennstoff und wird dort von
dem Brenner 4 verbrannt. In der Brennkammer 7 erfolgt die
eigentliche Reaktion der in dem Abgas enthaltenen Schadstoffe
aufgrund der hohen Temperatur und des hohen Verbrennungsluftüberschusses.
Ein Temperaturregler hält die
Reaktionstemperatur in der Brennkammer 7 mit Hilfe eines
Brennstoffmengenreglers konstant. Die heißen, auf diese
Weise vorgereinigten Gase strömen in der Brennkammer 7 in
Pfeilrichtung durch den Strömungsgleichrichter 8 und
verteilen sich gleichmäßig über den gesamten Brennkammerquerschnitt.
Die heißen, vorgereinigten Gase durchströmen
dann den Katalysator 9, der bevorzugt als Platinkatalysator
mit umgebenden Keramikfasern ausgebildet ist, und
reagieren mit dem überschüssigen Restsauerstoff und den
restlichen Schadstoffen. Die so gereinigten Gase strömen
durch den Ringspalt 10 in die vordere Wendesammelkammer
11 und verteilen sich in den Wärmetauscherschläuchen 17.
Die Wärmetauscherschläuche 17 sind wendelförmig oder spiralförmig
mit umgekehrtem Drehrichtungssinn wie die
Wendel 15 um die Brennkammer 7 geführt und führen das
gereinigte Gas zu dem Ausgangsstutzen 12. Die am Ende der
Brennkammer 7 angeordnete Bypassklappe 13 ist normalerweise
geschlossen und gibt im Notfall, zum Beispiel bei
einer unzulässig hohen Temperatur das gereinigte Gas direkt
in den Ausgangsstutzen 12. Auf diese Weise wird im
Notfall der Wärmetauscher 3 umgangen, so daß dann die
Temperatur in der Brennkammer 7 fällt und die Übertemperatur
gesenkt wird.The exhaust gas or raw gas to be cleaned occurs during operation
through the
Claims (13)
dadurch gekennzeichnet, daß der Wärmetauscher (3) eine Einrichtung (17) zur Durchführung der heißen Reingase durch das zu reinigende Abgas um die Brennkammer (7) aufweist, die spiralförmig gegensinnig zu der spiralförmigen Führung der zu reinigenden Abgase ausgerichtet ist.Device for cleaning exhaust gases from industrial processes, in particular thermal afterburning device, with a combustion chamber (7) in which the exhaust gas to be cleaned is burned and a heat exchanger (3) in which the exhaust gas to be cleaned is preheated, the heat exchanger (3 ) Has devices for spiraling the exhaust gas to be cleaned around the combustion chamber (7),
characterized in that the heat exchanger (3) has a device (17) for the passage of the hot clean gases through the exhaust gas to be cleaned around the combustion chamber (7), which is aligned in the opposite direction to the spiral guidance of the exhaust gases to be cleaned.
dadurch gekennzeichnet, daß die Einrichtung zur spiralförmigen Führung des zu reinigenden Abgases eine Wendel (15) aufweist. Device according to one of the preceding claims,
characterized in that the device for spirally guiding the exhaust gas to be cleaned has a helix (15).
dadurch gekennzeichnet, daß die Vorrichtung (1) eine Einrichtung zur Rückführung der heißen Reingase aufweist.Device according to one of the preceding claims,
characterized in that the device (1) has a device for recycling the hot clean gases.
dadurch gekennzeichnet, daß die Einrichtung (17) zur Durchführung des heißen Reingases durch das zu reinigende Gas eine Vielzahl von Wärmetauscherschläuchen (17) aufweist.Device according to one of the preceding claims,
characterized in that the device (17) for the passage of the hot clean gas through the gas to be cleaned has a plurality of heat exchanger hoses (17).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10124495 | 2001-05-19 | ||
| DE10124495A DE10124495C2 (en) | 2001-05-19 | 2001-05-19 | Device for cleaning exhaust gases from industrial processes |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP1258677A2 true EP1258677A2 (en) | 2002-11-20 |
| EP1258677A3 EP1258677A3 (en) | 2002-11-27 |
| EP1258677B1 EP1258677B1 (en) | 2005-08-10 |
Family
ID=7685432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP02009627A Expired - Lifetime EP1258677B1 (en) | 2001-05-19 | 2002-04-27 | Apparatus for cleaning exhaust gases from industrial processes |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1258677B1 (en) |
| AT (1) | ATE301804T1 (en) |
| DE (2) | DE10124495C2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008052644A1 (en) * | 2008-10-22 | 2010-04-29 | Volkswagen Ag | Method for thermal subsequent treatment of exhaust air of drying chamber, involves supplying exhaust air to burner device and exhaust gas of burner device to recuperation device for keeping moderate temperature of drying chamber |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3311456A (en) | 1963-03-21 | 1967-03-28 | Universal Oil Prod Co | Apparatus for incinerating a waste gas stream |
| DE69300289T2 (en) | 1992-03-10 | 1996-04-11 | Dumoutier & Massetat | Device for cleaning exhaust gases. |
| DE19910687A1 (en) | 1999-03-10 | 2000-10-05 | Eisenmann Kg Maschbau | Device for cleaning contaminated exhaust gases from industrial processes, in particular thermal afterburning device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2240071A1 (en) * | 1972-08-16 | 1974-02-28 | Otto Dipl Ing Brust | Incinerator for odorous vapours - with spiral recuperator for thermal econ-omy |
-
2001
- 2001-05-19 DE DE10124495A patent/DE10124495C2/en not_active Expired - Fee Related
-
2002
- 2002-04-27 DE DE50203859T patent/DE50203859D1/en not_active Expired - Fee Related
- 2002-04-27 AT AT02009627T patent/ATE301804T1/en not_active IP Right Cessation
- 2002-04-27 EP EP02009627A patent/EP1258677B1/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3311456A (en) | 1963-03-21 | 1967-03-28 | Universal Oil Prod Co | Apparatus for incinerating a waste gas stream |
| DE69300289T2 (en) | 1992-03-10 | 1996-04-11 | Dumoutier & Massetat | Device for cleaning exhaust gases. |
| DE19910687A1 (en) | 1999-03-10 | 2000-10-05 | Eisenmann Kg Maschbau | Device for cleaning contaminated exhaust gases from industrial processes, in particular thermal afterburning device |
Also Published As
| Publication number | Publication date |
|---|---|
| DE10124495A1 (en) | 2002-11-28 |
| ATE301804T1 (en) | 2005-08-15 |
| EP1258677A3 (en) | 2002-11-27 |
| EP1258677B1 (en) | 2005-08-10 |
| DE50203859D1 (en) | 2005-09-15 |
| DE10124495C2 (en) | 2003-04-10 |
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