EP0565886A1 - Industrial chimney with acid protection device - Google Patents

Industrial chimney with acid protection device Download PDF

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Publication number
EP0565886A1
EP0565886A1 EP93104312A EP93104312A EP0565886A1 EP 0565886 A1 EP0565886 A1 EP 0565886A1 EP 93104312 A EP93104312 A EP 93104312A EP 93104312 A EP93104312 A EP 93104312A EP 0565886 A1 EP0565886 A1 EP 0565886A1
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EP
European Patent Office
Prior art keywords
chimney
guide plates
air guide
industrial
protection device
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Granted
Application number
EP93104312A
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German (de)
French (fr)
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EP0565886B1 (en
Inventor
Wolfgang Dipl.-Phys. Kahlert
Matthias Dipl.-Ing. Eiden
Hans Prof. Ruscheweyh
Rainer Dipl.-Phys. Pfromm
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Flachglas Consult GmbH
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Flachglas Consult GmbH
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J13/00—Fittings for chimneys or flues 
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L17/00—Inducing draught; Tops for chimneys or ventilating shafts; Terminals for flues
    • F23L17/02—Tops for chimneys or ventilating shafts; Terminals for flues

Definitions

  • the invention relates to an industrial chimney, the chimney mouth of which is arranged in a free-flow area above the ground, - with a chimney head, to which an acid protection device is attached, which is arranged at an annular space-forming distance from the chimney casing, the acid protection device having a length in the chimney direction that is one Corresponds to several times the diameter of the chimney head.
  • - Industrial chimney refers to chimneys of great height in the context of the invention.
  • Free flow area refers to an area of the atmospheric air space in which the air flow mainly follows the climatic potential and is not influenced by the flow of structures close to the ground. The air flow that flows into such an industrial chimney creates a negative pressure on the leeward side for aerodynamic reasons.
  • Flue gases withdrawing from the chimney mouth are drawn onto the wall of the chimney head in the form of a smoke plume on the leeward side.
  • the flue gases are cooled below their dew point, so that aggressive substances such as sulfuric acid, sulfur compounds and the like can trigger severe corrosion.
  • practice speaks of a down-wash effect.
  • the acid protection device is designed as a nozzle casing which forms a closed nozzle casing around the chimney head in accordance with the annular space, the nozzle-shaped annular space thus formed below as well as in the area of the chimney mouth.
  • the nozzle jacket has a jacket length which corresponds to a multiple of the diameter of the chimney head.
  • the disturbing negative pressure on the leeward side which causes the down-wash effect, can be eliminated as long as the quotient of the inflow velocity of the air flow in the numerator and the exit velocity of the flue gases from the chimney mouth in the denominator is not too great.
  • degree of obstruction denotes the ratio of the surface area of the nozzle jacket in which the openings for the bypass channels are recessed to the completely closed surface of this nozzle jacket in percent, the completely closed nozzle jacket having a degree of obstruction of 100%.
  • the invention has for its object to improve the acid protection in an industrial chimney of the construction described above, and to make it largely independent of the quotient of the inflow velocity of the air flow in the meter and the exit velocity of the flue gases from the chimney mouth.
  • the invention teaches that the acid protection device has a plurality of air guide plates extending in the chimney direction, the width of which is smaller than the outer diameter of the chimney head, and that the air guide plates are arranged at a gap from one another.
  • the air baffle plates should preferably have a width that is smaller than the radius of the chimney head.
  • the air guide plates are curved following the curvature of the chimney head. They are also regularly all equally wide and equidistant around the chimney head.
  • DE-PS 804 449 it is known (DE-PS 804 449) to work with a pipe which is placed on the chimney mouth. This tube has slots running in the longitudinal direction and air guiding devices at a distance from the slots.
  • the invention is based on the knowledge that the aerodynamic acid protection described at the outset is considerably improved and on the quotient of the inflow velocity of the air flow in the meter and the exit velocity of the flue gases from the chimney outlet in
  • the denominator can be made largely independent if one does not work with a nozzle jacket that is completely closed and whose function is therefore determined by Bernoulli's relationship. It is more advantageous, following the teaching of the invention, to additionally introduce kinetic energy from the inflowing air flow into the annular space, which is opened accordingly, so that the degree of obstruction defined at the outset is considerably removed from 100%. At the same time, corresponding outlet slots are created with the gap distances.
  • a preferred embodiment of the invention is characterized in that the guide plates are designed in accordance with a degree of obstruction of 60% and are arranged equidistantly.
  • the air baffle plates will be closed with the chimney outlet.
  • the annular space of the acid protection device can be closed at the top and / or at the bottom.
  • the acid protection device is preferably used where the industrial chimney has no cover.
  • the air baffle plates are designed as glass panes.
  • they can be designed as safety glass panes.
  • Such air baffles are completely corrosion-resistant and low-maintenance. You can do that be set up so that they can withstand all stresses that arise without difficulty.
  • a preferred embodiment is characterized in that the air guide plates are designed as safety glass panes.
  • the air baffles can be connected to the chimney head in various ways.
  • the assembly means known from similar structures can be used (cf. DE 40 18 917 A1).
  • the industrial chimney 1 shown in the figures has a chimney mouth 2 which is arranged sufficiently far above the ground in a free-flow area.
  • the basic structure includes a chimney head 3 to which an acid protection device 4 is attached. This is arranged at an annular space-forming distance 5 from the chimney shell.
  • the acid protection device 4 has a length in the chimney direction which corresponds to a multiple of the diameter of the chimney head 3.
  • the acid protection device 4 has a plurality of air guide plates 6 extending in the chimney direction, the width of which is smaller than the outer diameter of the chimney head 3, the air guide plates 6 being arranged at a gap 7 from one another are.
  • the air guide plates 6 have a width which is not only smaller than the diameter of the chimney head 3, but also smaller than it corresponds to the radius of the chimney head 3.
  • the air guide plates 6 are curved following the curvature of the chimney head 3.
  • the air guide plates 6 are designed in accordance with a degree of obstruction of 60% and are arranged equidistantly.
  • degree of blockage has been defined above. Particularly good results are achieved when nine air baffle plates are arranged equidistantly.
  • Fig. 1 it can be seen that the air guide plates 6 terminate approximately with the chimney mouth 2.
  • the annular space can be closed off at least at the upper end by an annular disk 8.
  • the air guide plates 6 may be designed as glass panes, preferably made of safety glass and laminated safety glass.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Chimneys And Flues (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Industrial chimney (1), the chimney mouth (2) of which is arranged in a free-flow region above the ground, with a chimney head (3), on which an acid-protection device (4) is fastened, which is arranged at a distance (5) from the chimney casing, which forms an annular space. The acid-protection device has a length in the direction of the chimney, which corresponds to a multiple of the diameter of the chimney head. The acid-protection device has a large number of air-guide plates (6) which extend in the chimney direction and the width of which is smaller than corresponds to the diameter of the chimney head. The air-guide plates are arranged with a gap distance (7) from one another. <IMAGE>

Description

Die Erfindung betrifft einen Industrieschornstein, dessen Schornsteinmündung in einem Freiströmungsbereich oberhalb des Erdbodens angeordnet ist, - mit einem Schornsteinkopf, an dem eine Säureschutzeinrichtung befestigt ist, die mit ringraumbildendem Abstand von dem Schornsteinmantel angeordnet ist, wobei die Säureschutzeinrichtung in Schornsteinrichtung eine Länge aufweist, die einem Mehrfachen des Durchmessers des Schornsteinkopfes entspricht. - Industrieschornstein bezeichnet im Rahmen der Erfindung Schornsteine großer Höhe. Freiströmungsbereich bezeichnet einen Bereich des atmosphärischen Luftraumes, in dem die Luftströmung hauptsächlich den klimatisch bedingten Potentialen folgt und durch erdbodennahe Bauwerke strömungsmäßig nicht störend beeinflußt ist. Die Luftströmung, die einen solchen Industrieschornstein anströmt, erzeugt aus aerodynamischen Gründen auf der Leeseite einen Unterdruck. Aus der Schornsteinmündung abziehende Rauchgase werden in Form einer Rauchfahne auf der Leeseite außen an die Wandung des Schornsteinkopfes herangezogen. Infolge der hier herrschenden niedrigen Temperaturen werden die Rauchgase unter ihren Taupunkt abgekühlt, so daß aggressive Stoffe, wie Schwefelsäure, Schwefelverbindungen und dergleichen eine starke Korrosion auslösen können. Die Praxis spricht insoweit von einem Down-wash-Effekt.The invention relates to an industrial chimney, the chimney mouth of which is arranged in a free-flow area above the ground, - with a chimney head, to which an acid protection device is attached, which is arranged at an annular space-forming distance from the chimney casing, the acid protection device having a length in the chimney direction that is one Corresponds to several times the diameter of the chimney head. - Industrial chimney refers to chimneys of great height in the context of the invention. Free flow area refers to an area of the atmospheric air space in which the air flow mainly follows the climatic potential and is not influenced by the flow of structures close to the ground. The air flow that flows into such an industrial chimney creates a negative pressure on the leeward side for aerodynamic reasons. Flue gases withdrawing from the chimney mouth are drawn onto the wall of the chimney head in the form of a smoke plume on the leeward side. As a result of the low temperatures prevailing here, the flue gases are cooled below their dew point, so that aggressive substances such as sulfuric acid, sulfur compounds and the like can trigger severe corrosion. In this respect, practice speaks of a down-wash effect.

Bei dem bekannten Industrieschornstein, von dem die Erfindung ausgeht (DE 40 18 917 A1), ist die Säureschutzeinrichtung als Düsenmantel ausgebildet, der um den Schornsteinkopf nach Maßgabe des Ringraumes einen geschlossenen Düsenmantel bildet, wobei der so gebildete düsenförmige Ringraum unten sowie im Bereich der Schornsteinmündung offen ist. Der Düsenmantel besitzt eine Mantellänge, die einem Mehrfachen des Durchmessers des Schornsteinkopfes entspricht. Man erreicht so einen aerodynamischen Säureschutz, der in seiner Wirkung weitgehend durch die Bernoulli'schen Beziehungen der Aerodynamik bestimmt ist. Das hat sich bewährt. Der störende, den Down-wash-Effekt bewirkende Unterdruck auf der Leeseite kann aufgehoben werden, solange der Quotient aus der Anströmgeschwindigkeit der Luftströmung im Zähler und der Austrittsgeschwindigkeit der Rauchgase aus der Schornsteinmündung im Nenner nicht zu groß ist. Zwar wird im Rahmen dieser bekannten Maßnahmen vorgeschlagen, in dem Düsenmantel einige Öffnungen vorzusehen, das ändert jedoch nichts an den vorstehend beschriebenen Verhältnissen, weil mit Hilfe der Öffnungen lediglich Bypasskanäle geschaffen werden sollen, der sogenannte Versperrungsgrad jedoch nichtsdestoweniger bei praktisch 100 % liegt. Versperrungsgrad bezeichnet das Verhältnis der Oberfläche des Düsenmantels, in dem die Öffnungen für die Bypaßkanäle ausgespart sind, zu der vollständig geschlossenen Oberfläche dieses Düsenmantels in Prozent, wobei der vollständig geschlossene Düsenmantel den Versperrungsgrad von 100 % aufweist.In the known industrial chimney from which the invention is based (DE 40 18 917 A1), the acid protection device is designed as a nozzle casing which forms a closed nozzle casing around the chimney head in accordance with the annular space, the nozzle-shaped annular space thus formed below as well as in the area of the chimney mouth. The nozzle jacket has a jacket length which corresponds to a multiple of the diameter of the chimney head. An aerodynamic acid protection is thus achieved, the effect of which is largely determined by Bernoulli's relationships in aerodynamics. That has proven itself. The disturbing negative pressure on the leeward side, which causes the down-wash effect, can be eliminated as long as the quotient of the inflow velocity of the air flow in the numerator and the exit velocity of the flue gases from the chimney mouth in the denominator is not too great. Although it is proposed within the scope of these known measures to provide a few openings in the nozzle jacket, this does not change the situation described above, because the openings are only intended to create bypass channels, but the so-called degree of obstruction is nevertheless practically 100%. Degree of obstruction denotes the ratio of the surface area of the nozzle jacket in which the openings for the bypass channels are recessed to the completely closed surface of this nozzle jacket in percent, the completely closed nozzle jacket having a degree of obstruction of 100%.

Der Erfindung liegt die Aufgabe zugrunde, bei einem Industrieschornstein des eingangs beschriebenen Aufbaus den Säureschutz zu verbessern, und zwar weitgehend unabhängig zu machen von dem Quotienten aus der Anströmgeschwindigkeit der Luftströmung im Zähler und der Austrittsgeschwindigkeit der Rauchgase aus der Schornsteinmündung.The invention has for its object to improve the acid protection in an industrial chimney of the construction described above, and to make it largely independent of the quotient of the inflow velocity of the air flow in the meter and the exit velocity of the flue gases from the chimney mouth.

Zur Lösung dieser Aufgabe lehrt die Erfindung, daß die Säureschutzeinrichtung eine Mehrzahl von in Schornsteinrichtung erstreckten Luftleitplatten aufweist, deren Breite kleiner ist, als es dem äußeren Durchmesser des Schornsteinkopfes entspricht, und daß die Luftleitplatten mit Spaltabstand voneinander angeordnet sind. Die Luftleitplatten sollen vorzugsweise eine Breite aufweisen, die kleiner ist, als es dem Radius des Schornsteinkopfes entspricht. Nach bevorzugter Ausführungsform der Erfindung sind die Luftleitplatten der Krümmung des Schornsteinkopfes folgend gekrümmt. Sie sind fernerhin regelmäßig alle gleich breit und äquidistant um den Schornsteinkopf angeordnet. Bei Schornsteinaufsätzen für Hauskamine ist es bekannt (DE-PS 804 449), mit einem Rohr zu arbeiten, welches auf die Schornsteinmündung aufgesetzt wird. Dieses Rohr besitzt in Längsrichtung verlaufende Schlitze und mit Abstand vor den Schlitzen Luftleiteinrichtungen. Bei solchen Schornsteinen für Hauskamine ist es auch bekannt (DE 31 22 337 (2)), auf den Schornstein gleichsam einen Käfig aufzusetzen, der aus in horizontaler Richtung umlaufenden Tragringen und darauf aufgesetzten, nach außen konvexen Profillamellen besteht. Die Probleme um den Säureschutz bei Industriekaminen sind durch diese bekannten Maßnahmen nicht beeinflußt worden. In beiden Fällen wird ein Ringraum um den Strömungskanal für die Rauchgase nicht gebildet.To achieve this object, the invention teaches that the acid protection device has a plurality of air guide plates extending in the chimney direction, the width of which is smaller than the outer diameter of the chimney head, and that the air guide plates are arranged at a gap from one another. The air baffle plates should preferably have a width that is smaller than the radius of the chimney head. According to a preferred embodiment of the invention, the air guide plates are curved following the curvature of the chimney head. They are also regularly all equally wide and equidistant around the chimney head. In chimney tops for house chimneys, it is known (DE-PS 804 449) to work with a pipe which is placed on the chimney mouth. This tube has slots running in the longitudinal direction and air guiding devices at a distance from the slots. In such chimneys for domestic chimneys it is also known (DE 31 22 337 (2)) to place a cage on the chimney, which consists of support rings encircling in the horizontal direction and profile lamellas placed thereon and convex on the outside. The problems of acid protection in industrial fireplaces have not been influenced by these known measures. In both cases, an annular space around the flow channel for the flue gases is not formed.

Die Erfindung geht von der Erkenntnis aus, daß der eingangs beschriebene aerodynamische Säureschutz beachtlich verbessert werden und von dem Quotienten aus der Anströmgeschwindigkeit der Luftströmung im Zähler und der Austrittsgeschwindigkeit der Rauchgase aus der Schornsteinmündung im Nenner weitgehend unabhängig gemacht werden kann, wenn nicht mit einem Düsenmantel gearbeitet wird, der vollständig geschlossen ist und dessen Funktion daher durch die Bernoulli'sche Beziehung bestimmt ist. Vorteilhafter ist es, der Lehre der Erfindung folgend, zusätzlich Bewegungsenergie aus der anströmenden Luftströmung in den Ringraum einzuführen, der dazu entsprechend geöffnet ist, so daß der eingangs definierte Versperrungsgrad beachtlich von 100 % entfernt ist. Gleichzeitig entstehen mit den Spaltabständen entsprechende Austrittsschlitze. Eine bevorzugte Ausführungsform der Erfindung ist dadurch gekennzeichnet, daß die Leitplatten nach Maßgabe eines Versperrungsgrades von 60 % ausgebildet und äquidistant angeordnet sind.The invention is based on the knowledge that the aerodynamic acid protection described at the outset is considerably improved and on the quotient of the inflow velocity of the air flow in the meter and the exit velocity of the flue gases from the chimney outlet in The denominator can be made largely independent if one does not work with a nozzle jacket that is completely closed and whose function is therefore determined by Bernoulli's relationship. It is more advantageous, following the teaching of the invention, to additionally introduce kinetic energy from the inflowing air flow into the annular space, which is opened accordingly, so that the degree of obstruction defined at the outset is considerably removed from 100%. At the same time, corresponding outlet slots are created with the gap distances. A preferred embodiment of the invention is characterized in that the guide plates are designed in accordance with a degree of obstruction of 60% and are arranged equidistantly.

Im einzelnen bestehen im Rahmen der Erfindung mehrere Möglichkeiten der weiteren Ausbildung und Gestaltung. So wird man die Luftleitplatten etwa mit der Schornsteinmündung abschließen lassen. Der Ringraum der Säureschutzeinrichtung kann oben und/oder unten geschlossen sein. Die Säureschutzeinrichtung wird im übigen vorzugsweise dort eingesetzt, wo der Industrieschornstein keine Abdeckung aufweist.In particular, there are several possibilities for further training and design within the scope of the invention. For example, the air baffle plates will be closed with the chimney outlet. The annular space of the acid protection device can be closed at the top and / or at the bottom. In the usual way, the acid protection device is preferably used where the industrial chimney has no cover.

In werkstoffmäßiger Hinsicht bestehen im Rahmen der Erfindung mehrere Möglichkeiten. Besondere Vorteile erreicht man dadurch, daß die Luftleitplatten als Glasscheiben ausgeführt sind. Sie können insbesondere als Sicherheitsglasscheiben ausgeführt sein. Solche Luftleitplatten sind ihrerseits vollkommen korrosionsfest und wartungsarm. Sie können so eingerichtet werden, daß sie alle auftretenden Beanspruchungen ohne Schwierigkeiten aufnehmen. Insoweit ist eine bevorzugte Ausführungsform dadurch gekennzeichnet, daß die Luftleitplatten als Sicherheitsglasscheiben ausgeführt sind. Der Anschluß der Luftleitplatten an den Schornsteinkopf kann auf verschiedene Weise erfolgen. Insbesondere können die Montagemittel eingesetzt werden, die bei ähnlichen Bauwerken bekannt sind (vgl. DE 40 18 917 A1).In terms of materials, there are several possibilities within the scope of the invention. Particular advantages are achieved in that the air baffle plates are designed as glass panes. In particular, they can be designed as safety glass panes. Such air baffles are completely corrosion-resistant and low-maintenance. You can do that be set up so that they can withstand all stresses that arise without difficulty. In this respect, a preferred embodiment is characterized in that the air guide plates are designed as safety glass panes. The air baffles can be connected to the chimney head in various ways. In particular, the assembly means known from similar structures can be used (cf. DE 40 18 917 A1).

Im folgenden wird die Erfindung anhand einer lediglich ein Ausführungsbeispiel darstellenden Zeichnung ausführlicher erläutert. Es zeigen in schematischer Darstellung

Fig. 1
die Seitenansicht eines erfindungsgemäßen Industrieschornsteines mit Säureschutzeinrichtung, ausschnittsweise,
Fig. 2
einen Horizontalschnitt durch den Gegenstand der Fig. 1 und
Fig. 3
einen Vertikalschnitt durch den Gegenstand nach Fig. 1.
In the following, the invention will be explained in more detail with reference to a drawing showing only one embodiment. They show a schematic representation
Fig. 1
the side view of an industrial chimney according to the invention with acid protection device, in sections,
Fig. 2
a horizontal section through the subject of Fig. 1 and
Fig. 3
a vertical section through the object of FIG. 1st

Der in den Figuren dargestellte Industrieschornstein 1 besitzt eine Schornsteinmündung 2, die in einem Freiströmungsbereich ausreichend weit oberhalb des Erdbodens angeordnet ist. Zum grundsätzlichen Aufbau gehören ein Schornsteinkopf 3, an dem eine Säureschutzeinrichtung 4 befestigt ist. Diese ist mit ringraumbildendem Abstand 5 vom Schornsteinmantel angeordnet. Die Säureschutzeinrichtung 4 besitzt in Schornsteinrichtung eine Länge, die einem Mehrfachen des Durchmessers des Schornsteinkopfes 3 entspricht.The industrial chimney 1 shown in the figures has a chimney mouth 2 which is arranged sufficiently far above the ground in a free-flow area. The basic structure includes a chimney head 3 to which an acid protection device 4 is attached. This is arranged at an annular space-forming distance 5 from the chimney shell. The acid protection device 4 has a length in the chimney direction which corresponds to a multiple of the diameter of the chimney head 3.

Aus einer vergleichenden Betrachtung der Fig. 1 bis 3 entnimmt man, daß die Säureschutzeinrichtung 4 eine Mehrzahl von in Schornsteinrichtung erstreckten Luftleitplatten 6 aufweist, deren Breite kleiner ist, als es dem Außendurchmesser des Schornsteinkopfes 3 entspricht, wobei die Luftleitplatten 6 mit Spaltabstand 7 voneinander angeordnet sind. Im Ausführungsbeispiel besitzen die Luftleitplatten 6 eine Breite, die nicht nur kleiner ist als der Durchmesser des Schornsteinkopfes 3, sondern auch kleiner, als es dem Radius des Schornsteinkopfes 3 entspricht. Die Luftleitplatten 6 sind der Krümmung des Schornsteinkopfes 3 folgend gekrümmt.1 to 3, it can be seen that the acid protection device 4 has a plurality of air guide plates 6 extending in the chimney direction, the width of which is smaller than the outer diameter of the chimney head 3, the air guide plates 6 being arranged at a gap 7 from one another are. In the exemplary embodiment, the air guide plates 6 have a width which is not only smaller than the diameter of the chimney head 3, but also smaller than it corresponds to the radius of the chimney head 3. The air guide plates 6 are curved following the curvature of the chimney head 3.

Im Ausführungsbeispiel und nach bevorzugter Ausführungsform der Erfindung sind die Luftleitplatten 6 nach Maßgabe eines Versperrungsgrades von 60 % ausgebildet und äquidistant angeordnet. Der Begriff des Versperrungsgrades ist oben definiert worden. Besonders gute Ergebnisse erzielt man, wenn, neun Luftleitplatten äquidistant angeordnet werden.In the exemplary embodiment and according to a preferred embodiment of the invention, the air guide plates 6 are designed in accordance with a degree of obstruction of 60% and are arranged equidistantly. The term degree of blockage has been defined above. Particularly good results are achieved when nine air baffle plates are arranged equidistantly.

In der Fig. 1 erkennt man, daß die Luftleitplatten 6 etwa mit der Schornsteinmündung 2 abschließen. Der Ringraum kann zumindest am oberen Ende durch eine Ringscheibe 8 abgeschlossen sein.In Fig. 1 it can be seen that the air guide plates 6 terminate approximately with the chimney mouth 2. The annular space can be closed off at least at the upper end by an annular disk 8.

Die Luftleitplatten 6 mögen als Glasscheiben ausgeführt sein, vorzugsweise aus Sicherheitsglas und Verbundsicherheitsglas.The air guide plates 6 may be designed as glass panes, preferably made of safety glass and laminated safety glass.

In den Figuren 1 und 2 wurde angedeutet, wie die Luftströmung den Schornsteinkopf 3 mit der Säureschutzeinrichtung 4 anströmt. Pfeile 9 in den Fig. 1 und 2 machen deutlich, welche aerodynamischen Strömungsbilder erreicht werden. Zugleich verdeutlichen die Pfeile 10, daß das Rauchgas auf der Leeseite des anströmenden Windes nicht gegen den Schornsteinkopf 3 gezogen werden kann.In Figures 1 and 2 it was indicated how the air flow the chimney head 3 with the acid protection device 4th inflows. Arrows 9 in FIGS. 1 and 2 make it clear which aerodynamic flow patterns are achieved. At the same time, the arrows 10 make it clear that the flue gas on the leeward side of the incoming wind cannot be drawn against the chimney head 3.

Claims (12)

Industrieschornstein, dessen Schornsteinmündung in einem Freiströmungsbereich oberhalb des Erdbodens angeordnet ist, - mit
   einem Schornsteinkopf, an dem eine Säureschutzeinrichtung befestigt ist, die mit ringraumbildendem Abstand von dem Schornsteinmantel angeordnet ist,
wobei die Säureschutzeinrichtung in Schornsteinrichtung eine Länge aufweist, die einem Mehrfachen des Durchmessers des Schornsteinkopfes entspricht, dadurch gekennzeichnet, daß die Säureschutzeinrichtung (4) eine Mehrzahl von in Schornsteinrichtung erstreckten Luftleitplatten (6) aufweist, deren Breite kleiner ist, als es dem Durchmesser des Schornsteinkopfes (3) entspricht, und daß die Luftleitplatten (6) mit Spaltabstand (7) voneinander angeordnet sind.Industrial chimney, the chimney mouth of which is arranged in a free-flow area above the ground, - with
a chimney head, to which an acid protection device is attached, which is arranged at a distance from the chimney shell that forms an annular space,
wherein the acid protection device in the chimney direction has a length which corresponds to a multiple of the diameter of the chimney head, characterized in that the acid protection device (4) has a plurality of air guide plates (6) extending in the chimney direction, the width of which is smaller than the diameter of the chimney head (3) corresponds, and that the air guide plates (6) are arranged with a gap distance (7) from each other. Industrieschornstein nach Anspruch 1, dadurch gekennzeichnet, daß die Luftleitplatten (6) eine Breite aufweisen, die kleiner ist, als es dem Radius des Schornsteinkopfes (3) entspricht.Industrial chimney according to claim 1, characterized in that the air guide plates (6) have a width which is smaller than the radius of the chimney head (3). Industrieschornstein nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß die Luftleitplatten (6) der Krümmung des Schornsteinkopfes (3) folgend gekrümmt sind.Industrial chimney according to one of claims 1 or 2, characterized in that the air guide plates (6) are curved following the curvature of the chimney head (3). Industrieschornstein nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Luftleitplatten (6) nach Maßgabe eines Versperrungsgrades von 60 % ausgebildet und äquidistant angeordnet sind.Industrial chimney according to one of claims 1 to 3, characterized in that the air guide plates (6) according to Provided a degree of obstruction of 60% are formed and arranged equidistantly. Industrieschornstein nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die neun Luftleitplatten (6) äquidistant angeordnet sind.Industrial chimney according to one of claims 1 to 3, characterized in that the nine air guide plates (6) are arranged equidistantly. Industrieschornstein nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Luftleitplatten (6) etwa mit der Schornsteinmündung (2) abschließen.Industrial chimney according to one of claims 1 to 5, characterized in that the air guide plates (6) terminate approximately with the chimney mouth (2). Industrieschornstein nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß der Ringraum (5) der Säureschutzeinrichtung (4) zumindest am oberen Rand abgeschlossen ist.Industrial chimney according to one of claims 1 to 6, characterized in that the annular space (5) of the acid protection device (4) is closed off at least at the upper edge. Industrieschornstein nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß die Luftleitplatten (6) als Glasscheiben ausgeführt sind.Industrial chimney according to one of claims 1 to 7, characterized in that the air guide plates (6) are designed as glass panes. Industrieschornstein nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß die Luftleitplatten (6) als Sicherheitsglasscheiben ausgeführt sind.Industrial chimney according to one of claims 1 to 8, characterized in that the air guide plates (6) are designed as safety glass panes. Industrieschornstein nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß die Luftleitplatten (6) als Verbundsicherheitsglasscheiben ausgeführt sind.Industrial chimney according to one of claims 1 to 9, characterized in that the air guide plates (6) are designed as laminated safety glass panes. Industrieschornstein nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, daß an die Luftleitplatten oberseitig und/oder unterseitig Abdeckplatten angeschlossen sind, die mit radialer Verjüngung zum Schornsteinmantel geführt und an diesen angeschlossen sind.Industrial chimney according to one of claims 1 to 10, characterized in that the upper side of the air guide plates and / or cover plates are connected on the underside, which are guided to the chimney shell with radial taper and connected to it. Industrieschornstein nach Anspruch 11, dadurch gekennzeichnet, daß die Abdeckplatten oberseitig und/oder unterseitig Strömungsöffnungen aufweisen.Industrial chimney according to claim 11, characterized in that the cover plates have flow openings on the top and / or bottom.
EP93104312A 1992-04-07 1993-03-17 Industrial chimney with acid protection device Expired - Lifetime EP0565886B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4211698A DE4211698A1 (en) 1992-04-07 1992-04-07 Industrial chimney with acid protection device
DE4211698 1992-04-07

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EP0565886A1 true EP0565886A1 (en) 1993-10-20
EP0565886B1 EP0565886B1 (en) 1996-12-18

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EP93104312A Expired - Lifetime EP0565886B1 (en) 1992-04-07 1993-03-17 Industrial chimney with acid protection device

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EP (1) EP0565886B1 (en)
AT (1) ATE146584T1 (en)
DE (2) DE4211698A1 (en)
DK (1) DK0565886T3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2792062A1 (en) * 1999-04-06 2000-10-13 Petroles Cie Techniques Arrangement for dispersing fumes around chimney comprises series of arc-shaped dispersing blades centered on axis of cylindrical shaft on chimney

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2627219A (en) * 1950-01-31 1953-02-03 Air Devices Inc Air exhauster
FR1193912A (en) * 1959-11-05
FR2227496A1 (en) * 1973-04-27 1974-11-22 Larroque Andre Chimney cowl bolted to top of chimney - has concentric rings of vert. baffles below cover plate bolted in place
DE4018917A1 (en) * 1990-06-13 1991-12-19 Flachglas Consult Gmbh INDUSTRIAL CHIMNEY WITH ACID PROTECTION DEVICE

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1193912A (en) * 1959-11-05
US2627219A (en) * 1950-01-31 1953-02-03 Air Devices Inc Air exhauster
FR2227496A1 (en) * 1973-04-27 1974-11-22 Larroque Andre Chimney cowl bolted to top of chimney - has concentric rings of vert. baffles below cover plate bolted in place
DE4018917A1 (en) * 1990-06-13 1991-12-19 Flachglas Consult Gmbh INDUSTRIAL CHIMNEY WITH ACID PROTECTION DEVICE

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2792062A1 (en) * 1999-04-06 2000-10-13 Petroles Cie Techniques Arrangement for dispersing fumes around chimney comprises series of arc-shaped dispersing blades centered on axis of cylindrical shaft on chimney

Also Published As

Publication number Publication date
DE4211698A1 (en) 1993-10-14
DE59304781D1 (en) 1997-01-30
EP0565886B1 (en) 1996-12-18
DK0565886T3 (en) 1997-01-06
ATE146584T1 (en) 1997-01-15

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