EP0002701A1 - Air louver for an exhaust air duct - Google Patents

Air louver for an exhaust air duct Download PDF

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Publication number
EP0002701A1
EP0002701A1 EP78101606A EP78101606A EP0002701A1 EP 0002701 A1 EP0002701 A1 EP 0002701A1 EP 78101606 A EP78101606 A EP 78101606A EP 78101606 A EP78101606 A EP 78101606A EP 0002701 A1 EP0002701 A1 EP 0002701A1
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EP
European Patent Office
Prior art keywords
exhaust air
base area
narrow side
base surface
dome
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP78101606A
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German (de)
French (fr)
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EP0002701B1 (en
Inventor
Hermann Kurrle
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Schako KG
Original Assignee
Schako Metallwarenfabrik Ferdinand Schad KG
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Application filed by Schako Metallwarenfabrik Ferdinand Schad KG filed Critical Schako Metallwarenfabrik Ferdinand Schad KG
Publication of EP0002701A1 publication Critical patent/EP0002701A1/en
Application granted granted Critical
Publication of EP0002701B1 publication Critical patent/EP0002701B1/en
Expired legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/02—Ducting arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F2007/001—Ventilation with exhausting air ducts

Definitions

  • the invention relates to an exhaust air guide device for insertion into a wall opening of an exhaust air duct.
  • exhaust air grilles of various types are built directly into the duct wall or attached to the inlet opening of a branch duct.
  • air is sucked into the duct through the exhaust air grille. Since such exhaust air ducts can be very long, for example in large halls or when exhausting over several floors, If necessary, a larger number of exhaust grilles must be installed in the duct wall at suitable intervals. Since suction is to be applied uniformly over all grilles, the grilles are equipped with throttling devices of different designs.
  • the invention has for its object to provide an exhaust air guide device for insertion into a wall opening of an exhaust air duct, which ensures an introduction of the exhaust air with as little disturbance of the flow conditions and low pressure losses as possible and enables a favorable throttling of the exhaust air.
  • the exhaust air guiding device has an arched dome surface which is arranged above an open rectangular base surface and extends from a narrow side of the base surface and the two long sides of the base surface, and which is curved, trapezoidal in all planes running perpendicular to the base surface and parallel to the narrow sides thereof or forms polygonal one-piece cutting lines and their maximum slope with respect to the base area and over the entire length of the base area is the same remains between 10 ° and 45 °, and that the end face of the exhaust air guiding device, which is arranged above the one narrow side of the base surface perpendicular to the base surface, is designed as a throttling surface which has broken out in whole or in part along predetermined breaking lines running parallel to this narrow side.
  • the dome-shaped exhaust air guiding device according to the invention is inserted into an opening in the exhaust air duct wall in such a way that the dome surface extends obliquely inwards in the direction of flow through the duct and opens downstream.
  • the open rectangular base area of the dome can be installed either directly or preferably via an installation frame adapted to the shape of the channel wall in the wall opening of the channel, the installation frame extending around the base area assigned to the dome area essentially perpendicular to this base area and having an attachment edge .
  • the exhaust air dome according to the invention is a very simple to produce and just as easy to install in the openings of an exhaust air duct guide device, which can be adapted in a very simple manner to the respective flow and pressure conditions by, depending on requirements, more or less parts of the opening of the dome throttle surface partially occluding to the duct are broken away along the predetermined breaking lines. It has been found that the exhaust air dome according to the invention brings about a minimal disturbance of the flow and pressure conditions in the exhaust air duct compared to known devices and that it is in particular possible, by previously calculating the pressure losses occurring along the AL air duct Already at the factory must be used * throttle area by breaking away of parts of or the entire surface so throttle L Ellen that the suction of an exhaust channel remains approximately constant through all the exhaust air dome along.
  • an inlet grille that is usually used can also be inserted into the installation frame in a very simple manner.
  • exhaust air guiding devices With known exhaust air guiding devices it is not possible to adapt them to openings of different sizes in the duct wall without producing specially adapted sizes of the guiding device and keeping them in stock.
  • the flow and pressure conditions of the channel are influenced in a rather uncontrollable manner by different sizes of the guide devices.
  • two or more exhaust air guiding devices are therefore attached to one another in the same orientation, each with a long side and / or a narrow side of their base area.
  • This modular design of the exhaust air guiding device gives the great advantage that openings of any size in the duct wall can be made with one set can be provided by the same exhaust dome, so that only a single size of the exhaust dome has to be manufactured and kept in stock.
  • the set of exhaust air domes inserted into the opening essentially gives the same low disturbance of the flow and pressure conditions as a single exhaust air dome and can also be set in the factory to a desired extraction volume in a very simple manner by more or less extensive breaking out of the throttle surfaces.
  • the production of the exhaust air dome according to the invention is so simple that it can even be carried out in the workshop without special equipment.
  • the computing effort in determining the throttle area size for the individual exhaust air dome is so small that it does not play a role compared to the elimination of the difficult adjustment work previously required for the individual exhaust air openings.
  • the pressure loss occurring at the individual exhaust air domes is extremely low.
  • the exhaust air dome 10 shown in FIG. 1 consists of a dome surface 14 that bulges over an open rectangular base area 12, which is preferably made of sheet iron, but can also be made of aluminum, brass, V2A steel, plastic or the like.
  • the dome surface 14 extends from the base surface 12 on the two long sides 16 and 18 and on a narrow side 2o and rises uniformly with respect to the base surface starting from the narrow side 2o to the opposite narrow side 22. Above the narrow side 22, it forms a portal-like opening 24 arranged perpendicular to the base surface 12, which can be trapezoidal according to FIG. 5 or 6 or bordered by a curved line according to FIG. 7.
  • openings with polygonal borders can also be used, but the opening should not be rectangular, since this has an adverse effect on the flow and pressure conditions.
  • the opening 24 is surrounded at the top and on the sides by a drawn-in edge 26, to which a throttle surface 28 is expediently fastened via weakened predetermined breaking lines.
  • the throttle surface itself is crossed by several predetermined breaking lines 3o running parallel to the narrow side 22 of the base area, so that the individual fields 1, 2, 3, 4 (see FIG. 9) delimited by the predetermined breaking lines can be broken out in this order as required.
  • the largest opening of the exhaust air dome is the opening O, which is only surrounded by the edge 26.
  • the fields 1, 2, 3, 4 of the throttle surface 28 are broken out in order from top to bottom, so that the outlet opening enlarged from top to bottom.
  • the greatest slope of the exhaust air dome lo with respect to the base area 12 has the upward-facing cover surface 32.
  • it includes the angle area with the base area, which according to the invention is between 10 ° and 45 °, preferably between 15 ° and 2 0 °.
  • this greatest slope would only have the surface line of the dome 10 running along the vertical central plane 34.
  • Ring around the base 12 is fixed to a vertically downwardly projecting from this mounting frame 36 on the Dom character lo which carries a ur 7 parallel base surface 12 extending fastening edge 38th
  • Installation frame 36 and fastening edge 38 can be modified depending on the cross section of the duct and the shape of the exhaust air opening into which the exhaust air dome is to be inserted.
  • the exhaust air dome according to the invention is very easy to adapt to rectangular, round or other duct shapes.
  • FIG. 1 it is also shown how, on the one hand, another narrow exhaust air dome 10 'on one narrow side 22 and, on the other hand, another on the long side 16
  • openings of any size in the duct wall can be covered by the exhaust air dome according to the invention, only the installation frame having to be enlarged accordingly, so that it comprises all the intended exhaust air domes. Examples of placing three in series Exhaust domes lo 'and for placing three exhaust domes lo "next to one another are indicated schematically in FIGS.
  • FIG. 2 also shows in a schematically simplified manner how an exhaust air dome 10 according to the invention with a mounting frame 36 and a fastening edge 38 is inserted into a corresponding opening 4o in a flat wall 42 of an exhaust air duct 46 through which arrow 44 flows.
  • An exhaust grille 48 known per se, is inserted within the mounting frame, and its edge 50 overlaps the fastening edge 38. The attachment of the exhaust air grille 48 is thus in no way hindered by the exhaust air dome according to the invention.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Duct Arrangements (AREA)
  • Air-Flow Control Members (AREA)
  • Incineration Of Waste (AREA)
  • Ventilation (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

1. Exhaust air conduction device for installation in a wall openning of an exhaust air conduit, which device has a guide surface arranged over an open rectangular base surface, the said guide surface starting from a narrow side of the base surface and projecting into interior of the conduit, and the maximum inclination of the guide surface relative to the base surface being between 10 degrees and 45 degrees, characterized in that the guide surface is formed as an arched dome surface (14) which forms, in all planes running perpendicular to the base surface (12) and parallel to its narrow sides (20, 22), curved, trapezoidal or polygonal one-piece intersection lines starting from the two long sides (16, 18) of the base surface (12), and in that the front side of the exhaust air conduction device arranged over on narrow side (22) of the base surface (12) perpendicular to the base surface is formed as a throttling or regulating surface (28) broken partially or completely longitudinally by predetermined breaking lines (30) running parallel to this narrow side (22).

Description

Die Erfindung betrifft eine Abluftleitvorrichtung zum Einsetzen in eine Wandöffnung eines Abluftkanals.The invention relates to an exhaust air guide device for insertion into a wall opening of an exhaust air duct.

In einem Abluftkanal mit rundem oder eckigem Querschnitt werden Abluftgitter unterschiedlicher Bauart direkt in die Kanalwand eingebaut oder an der Einlaßöffnung eines Stichkanals angebracht. Bei Erzeugung eines Luftstroms durch den Abluftkanal wird durch die Abluftgitter Luft in den Kanal gesaugt. Da solche Abluftkanäle z.B. in großen Hallen oder bei Absaugung über mehrere Stockwerke sehr lang sein können, muß gegebenenfalls in geeigneten Abständen eine größere Anzahl von Abluftgittern in die Kanalwand eingebaut werden. Da über alle Gitter gleichmäßig abgesaugt werden soll, werden die Gitter mit Drosselvorrichtungen unterschiedlicher Bauart ausgerüstet.In an exhaust air duct with a round or angular cross-section, exhaust air grilles of various types are built directly into the duct wall or attached to the inlet opening of a branch duct. When an air flow is generated through the exhaust air duct, air is sucked into the duct through the exhaust air grille. Since such exhaust air ducts can be very long, for example in large halls or when exhausting over several floors, If necessary, a larger number of exhaust grilles must be installed in the duct wall at suitable intervals. Since suction is to be applied uniformly over all grilles, the grilles are equipped with throttling devices of different designs.

Es ist nun außerordentlich Bchwierig, über alle in einen Abluftkanal eingebaute Abluftgitter eine gleichmäßige Absaugung zu erzielen. Außerdem stört die durch die Abluftgitter angesaugte Luft die Strömungsverhältnisse im Abluftkanal mehr oder weniger stark.It is now extremely difficult to achieve uniform suction through all the air grilles installed in an air duct. In addition, the air sucked in through the exhaust air grille more or less disrupts the flow conditions in the exhaust air duct.

Es ist bekannt, daß bei schräger Einleitung eines Nebenluftstroms in die Strömung eines Luftkanals geringere Strömungsstörungen und Druckverluste auftreten. Bei unzweckmäßiger Drosselung der eingeleiteten Luftströme treten jedoch auch hier starke Druckverluste auf, und es ist bei langen Kanälen oft nicht möglich, einen einwandfreien Druckausgleich für alle Abluftgitter zu erzielen.It is known that when a secondary air flow is introduced obliquely into the flow of an air duct, less flow disturbances and pressure losses occur. If the introduced air flows are inappropriately throttled, however, there are strong pressure losses here too, and it is often not possible with long ducts to achieve perfect pressure compensation for all exhaust air grilles.

Der Erfindung liegt die Aufgabe zugrunde, eine Abluftleitvorrichtung zum Einsetzen in eine Wandöffnung eines Abluftkanals zu schaffen, die eine Einleitung der Abluft mit möglichst geringer Störung der Strömungsverhältnisse und geringen Druckverlusten gewährleistet und eine günstige Drosselung der Abluft ermöglicht.The invention has for its object to provide an exhaust air guide device for insertion into a wall opening of an exhaust air duct, which ensures an introduction of the exhaust air with as little disturbance of the flow conditions and low pressure losses as possible and enables a favorable throttling of the exhaust air.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß die Abluftleitvorrichtung eine über einer offenen rechteckigen Grundfläche angeordnete, von einer Schmalseite der Grundfläche und den zwei Längsseiten der Grundfläche ausgehende gewölbte Domfläche aufweist, die in allen senkrecht zur Grundfläche und parallel zu deren Schmalseiten verlaufenden Ebenen gekrümmte, trapezförmige oder mehreckige einstückige Schnittlinien bildet und deren maximale Steigung bezüglich der Grundfläche und über der ganzen Länge der Grundfläche gleichbleibend zwischen 10° und 45° lregt, und daß die über der einen Schmalseite der Grundfläche senkrecht zur Grundfläche angeordnete Stirnseite der Abluftleitvorrichtung als Drosselfläche ausgebildet ist, die ganz oder teilweise längs parallel zu dieser Schmalseite verlaufenden Sollbruchlinien ausgebrochen ist.This object is achieved in that the exhaust air guiding device has an arched dome surface which is arranged above an open rectangular base surface and extends from a narrow side of the base surface and the two long sides of the base surface, and which is curved, trapezoidal in all planes running perpendicular to the base surface and parallel to the narrow sides thereof or forms polygonal one-piece cutting lines and their maximum slope with respect to the base area and over the entire length of the base area is the same remains between 10 ° and 45 °, and that the end face of the exhaust air guiding device, which is arranged above the one narrow side of the base surface perpendicular to the base surface, is designed as a throttling surface which has broken out in whole or in part along predetermined breaking lines running parallel to this narrow side.

Die domförmige Abluftleitvorrichtung gemäß der Erfindung, nachfolgend kurz auch Abluftdom genannt, wird derart in eine öffnung der Abluftkanalwandung eingesetzt, daß die Domfläche sich von der Kanalwandung in Durchströmungsrichtung des Kanals schräg nach innen erstreckt und sich stromabwärts öffnet. Die offene rechteckige Grundfläche des Doms kann dabei entweder direkt oder vorzugsweise über einen der Form der Kanalwandung angepaßten Einbaurahmen in die Wandöffnung des Kanals eingebaut werden, wobei sich der Einbaurahmen rings um die der Domfläche zugeordnete Grundfläche im wesentlichen senkrecht zu dieser Grundfläche erstreckt und einen Befestigungsrand aufweist.The dome-shaped exhaust air guiding device according to the invention, hereinafter also referred to as exhaust air dome, is inserted into an opening in the exhaust air duct wall in such a way that the dome surface extends obliquely inwards in the direction of flow through the duct and opens downstream. The open rectangular base area of the dome can be installed either directly or preferably via an installation frame adapted to the shape of the channel wall in the wall opening of the channel, the installation frame extending around the base area assigned to the dome area essentially perpendicular to this base area and having an attachment edge .

Der erfindungsgemäße Abluftdom stellt eine sehr einfach herzustellende und ebenso einfach in den öffnungen eines Abluftkanals anzubringende Leitvorrichtung dar, die insbesondere in sehr einfacher Weise den jeweiligen Strömungs-und Druckverhältnissen angepaßt-werden kann, indem je nach Erfordernis mehr oder weniger Teile der die öffnung des Doms zum Kanal teilweise verschließenden Drosselfläche längs der Sollbruchlinien weggebrochen werden. Es hat sich herausgestellt, daß der erfindungsgemäße Abluftdom eine im Vergleich zu bekanntem Vorrichtungen minimale Störung der Strömungs-und Druckverhältnisse im Abluftkanal erbringt und daß es insbesondere möglich ist, durch vorherige Berechnung der längs des ALtuftkanals auftretenden Druckverluste die Drosselfläche bereits fabrikseitig durch Wegbrechen von Teilen oder auch der gesamten Drosselfläche so einzusLellen, daß die Absaugung durch sämtliche Abluftdome längs eines Abluftkanals etwa konstant bleibt. Bisher war es zu diesem Zweck erforderlich, langwierige und schwierige Abgleicharbeiten an Ort und Stelle bei den einzelnen Öffnungen eines eingebauten Abluftkanals vorzunehmen, ohne damit die vorteilhaften Eigenschaften eines Kanals mit den erfindungsgemäßen Abluftdomen erreichen zu können. Diese komplizierten Arbeiten können durch Verwendung der erfindungsgemäßen Abluftdome in Wegfall kommen.The exhaust air dome according to the invention is a very simple to produce and just as easy to install in the openings of an exhaust air duct guide device, which can be adapted in a very simple manner to the respective flow and pressure conditions by, depending on requirements, more or less parts of the opening of the dome throttle surface partially occluding to the duct are broken away along the predetermined breaking lines. It has been found that the exhaust air dome according to the invention brings about a minimal disturbance of the flow and pressure conditions in the exhaust air duct compared to known devices and that it is in particular possible, by previously calculating the pressure losses occurring along the AL air duct Already at the factory must be used * throttle area by breaking away of parts of or the entire surface so throttle L Ellen that the suction of an exhaust channel remains approximately constant through all the exhaust air dome along. So far, it has been necessary for this purpose to carry out lengthy and difficult adjustment work on the spot at the individual openings of an installed exhaust air duct without being able to achieve the advantageous properties of a duct with the exhaust air domes according to the invention. This complicated work can be eliminated by using the exhaust air domes according to the invention.

Bei Verwendung eines am Fuß des Abluftdomes sitzenden Einbaurahmens läßt sich auch ein üblicherweise verwendetes Einlaßgitter in sehr einfacher Weise in den Einbaurahmen einsetzen. Es ist jedoch auch möglich, den Abluftdom direkt an einem in die öffnung der Kanalwandung eingesetzten Gitter anzubringen. Falls erforderlich, kann an die öffnung der Kanalwandung ein Stichkanal mit Einlaßgitter angesetzt werden, ohne durch die erfindungsgemäße Abluftleitvorrichtung behindert zu werden.When using an installation frame located at the foot of the exhaust air dome, an inlet grille that is usually used can also be inserted into the installation frame in a very simple manner. However, it is also possible to attach the exhaust air dome directly to a grille inserted into the opening of the duct wall. If necessary, a branch duct with inlet grille can be attached to the opening of the duct wall without being obstructed by the exhaust air guide device according to the invention.

Mit bekannten Abluftleitvorrichtungen ist es nicht möglich, dieselben an verschieden große öffnungen in der Kanalwand anzupassen, ohne speziell angepaßte Größen der Leitvorrichtung herzustellen und auf Lager zu halten. Insbesondere werden durch verschiedene Größen der Leitvorrichtungen die Strömungs-und Druckverhältnisse des Kanals in ziemlich unkontrollierbarer Weise beeinflußt. In vorteilhafter und besonders bevorzugter Ausgestaltung der Erfindung sind daher zwei oder mehrere Abluftleitvorrichtungen in gleicher Ausrichtung mit je einer Längsseite und/oder je einer Schmalseite ihrer Grundfläche aneinander angesetzt. Diese Modulbauweise der Abluftleitvorrichtung ergibt den großen Vorteil, daß beliebig große öffnungen in der Kanalwandung mit einem Satz von gleichen Abluftdomen versehen werden können, so daß nur eine einzige Größe des Abluftdoms hergestellt und auf Lager gehalten werden muß. Der in die Öffnung eingesetzte Satz von Abluftdomen ergibt im wesentlichen die gleiche geringe Störung der Strömungs- und Druckverhältnisse wie ein einziger Abluftdom und läßt sich ebenfalls durch mehr oder weniger weitgehendes Ausbrechen der Drosselflächen in sehr einfacher Weise bereits fabrikseitig auf ein gewünschtes Absaugvolumen einstellen..With known exhaust air guiding devices it is not possible to adapt them to openings of different sizes in the duct wall without producing specially adapted sizes of the guiding device and keeping them in stock. In particular, the flow and pressure conditions of the channel are influenced in a rather uncontrollable manner by different sizes of the guide devices. In an advantageous and particularly preferred embodiment of the invention, two or more exhaust air guiding devices are therefore attached to one another in the same orientation, each with a long side and / or a narrow side of their base area. This modular design of the exhaust air guiding device gives the great advantage that openings of any size in the duct wall can be made with one set can be provided by the same exhaust dome, so that only a single size of the exhaust dome has to be manufactured and kept in stock. The set of exhaust air domes inserted into the opening essentially gives the same low disturbance of the flow and pressure conditions as a single exhaust air dome and can also be set in the factory to a desired extraction volume in a very simple manner by more or less extensive breaking out of the throttle surfaces.

Die Herstellung des erfindungsgemäßen Abluftdoms ist so einfach, daß sie sogar ohne Spezialeinrichtungen werkstattmäßig durchgeführt werden kann. Der Rechenaufwand bei der Bestimmung der Drosselflächengröße für den einzelnen Abluftdom ist so gering, daß er gegenüber dem Wegfall der bisher erforderlichen schwierigen Abgleicharbeiten für die einzelnen Abluftöffnungen nicht ins Gewicht fällt. Darüberhinaus ist, wie erwähnt, der an den einzelnen Abluftdomen auftretende Druckverlust außerordentlich gering.The production of the exhaust air dome according to the invention is so simple that it can even be carried out in the workshop without special equipment. The computing effort in determining the throttle area size for the individual exhaust air dome is so small that it does not play a role compared to the elimination of the difficult adjustment work previously required for the individual exhaust air openings. In addition, as mentioned, the pressure loss occurring at the individual exhaust air domes is extremely low.

Anhand der Figuren werden Ausführungsbeispiele der Erfindung näher erläutert. Es zeigen:

  • Fig. l eine Schrägansicht eines erfindungsgemäßen Abluftdoms mit Einbaurahmen, wobei an eine Schmalseite und eine Längsseite je ein weiterer gleicher Abluftdom angesetzt ist, die jedoch nur teilweise dargestellt sind;
  • Fig. 2 einen schematischen Längsschnitt durch einen Abschnitt eines Abluftkanals mit einem eingesetzten Abluftdom;
  • Fig. 3 einen der Fig. 2 entsprechenden Längsschnitt mit angesetztem Stichkanal;
  • Fig. 4 eine schematische Darstellung zur Erläuterung der Steigung der Domfläche;
  • Fig. 5 bis 7 schematische Aufsichten auf verschiedene Ausführungsformen des Abluftdoms, wobei die Drosselflächen weggelassen sind;
  • Fig. 8 eine der Fig. 4 entsprechende Darstellung des Abluftdoms mit angesetztem Einbaurahmen;
  • Fig. 9 eine der Fig. 5 entsprechende Darstellung mit eingezeichneter und teilweise ausgebrochener Drosselfläche;
  • Fig.lo eine schematische Darstellung mehrerer mit ihren Schmalseiten aneinandergesetzter Abluftdome; und
  • Fig.11 eine schematische Darstellung mehrerer mit ihren Längsseiten aneinandergesetzter Abluftdome.
Exemplary embodiments of the invention are explained in more detail with the aid of the figures. Show it:
  • 1 shows an oblique view of an exhaust air dome according to the invention with a mounting frame, with another identical exhaust air dome each being attached to a narrow side and a long side, but these are only shown in part;
  • 2 shows a schematic longitudinal section through a section of an exhaust air duct with an inserted exhaust air dome;
  • FIG. 3 shows a longitudinal section corresponding to FIG. 2 with the branch channel attached;
  • 4 shows a schematic illustration to explain the slope of the dome surface;
  • 5 to 7 are schematic top views of various embodiments of the exhaust air dome, the throttle surfaces being omitted;
  • FIG. 8 shows a representation of the exhaust air dome corresponding to FIG. 4 with the mounting frame attached;
  • FIG. 9 shows a representation corresponding to FIG. 5 with the throttle surface drawn in and partially broken away;
  • Fig.lo is a schematic representation of several exhaust air domes placed with their narrow sides; and
  • 11 shows a schematic representation of a plurality of exhaust air domes placed with their long sides.

Der in Fig. 1 dargestellte Abluftdom lo besteht aus einer über einer offenen rechteckigen Grundfläche 12 sich wölbenden Domfläche 14, die vorzugsweise aus Eisenblech besteht, jedoch auch aus Aluminium, Messing, V2A-Stahl, Kunststoff od. dgl. hergestellt werden kann. Die Domfläche 14 geht an den beiden Längsseiten 16 und 18 und an einer Schmalseite 2o von der Grundfläche 12 aus und steigt bezüglich der Grundfläche ausgehend von der Schmalseite 2o bis zur gegenüberliegenden Schmalseite 22 gleichförmig an. Über der Schmalseite 22 bildet sie eine senkrecht zur Grundfläche 12 angeordnete portalartige öffnung 24, die gemäß Fig. 5 oder Fig. 6 trapezförmig oder gemäß Fig. 7 von einer gekrümmten Linie umrandet sein kann. Grundsätzlich sind auch mehreckig umrandete öffnungen anwendbar, jedoch sollte die öffnung nicht rechteckig sein, da hierdurch die Strömungs- und Druckverhältnisse ungünstig beeinflußt werden.The exhaust air dome 10 shown in FIG. 1 consists of a dome surface 14 that bulges over an open rectangular base area 12, which is preferably made of sheet iron, but can also be made of aluminum, brass, V2A steel, plastic or the like. The dome surface 14 extends from the base surface 12 on the two long sides 16 and 18 and on a narrow side 2o and rises uniformly with respect to the base surface starting from the narrow side 2o to the opposite narrow side 22. Above the narrow side 22, it forms a portal-like opening 24 arranged perpendicular to the base surface 12, which can be trapezoidal according to FIG. 5 or 6 or bordered by a curved line according to FIG. 7. In principle, openings with polygonal borders can also be used, but the opening should not be rectangular, since this has an adverse effect on the flow and pressure conditions.

Die Öf ung 24 ist bei der dargestellten Ausführungsform oben und an den Seiten von einem eingezogenen Rand 26 umgeben, an dem eine Drosselfläche 28 zweckmäßigerweise über geschwächte Sollbruchlinien befestigt ist. Die Drosselfläche selbst ist von mehreren parallel zur Schmalseite 22 der Grundfläche verlaufenden Sollbruchlinien 3o durchzogen, so daß die einzelnen durch die Sollbruchlinien begrenzten Felder 1, 2, 3, 4 (siehe Fig. 9) je nach Bedarf in dieser Reihenfolge herausgebrochen werden können. Als größte Öffnung des Abluftdoms ergibt sich bei der Ausführungsform gemäß Fig. 9 die nur mehr von dem Rand 26 umgebene öffnung O. Die Felder 1, 2, 3, 4 der Drosselfläche 28 werden der Reihe nach von oben nach unten ausgebrochen, so daß sich die Austrittsöffnung von oben nach unten vergrößert. In dieser Reihanfolge liegt der Vorteil, daß die durch die jeweils gebildete Austrittsöffnung austretende Luft den von der Domfläche 14 bestimmten Austrittswinkel unabgelenkt beibehalten kann.In the embodiment shown, the opening 24 is surrounded at the top and on the sides by a drawn-in edge 26, to which a throttle surface 28 is expediently fastened via weakened predetermined breaking lines. The throttle surface itself is crossed by several predetermined breaking lines 3o running parallel to the narrow side 22 of the base area, so that the individual fields 1, 2, 3, 4 (see FIG. 9) delimited by the predetermined breaking lines can be broken out in this order as required. In the embodiment according to FIG. 9, the largest opening of the exhaust air dome is the opening O, which is only surrounded by the edge 26. The fields 1, 2, 3, 4 of the throttle surface 28 are broken out in order from top to bottom, so that the outlet opening enlarged from top to bottom. This sequence has the advantage that the air emerging through the outlet opening formed in each case can maintain the exit angle determined by the dome surface 14 undeflected.

Die größte Steigung des Abluftdoms lo bezüglich der Grundfläche 12 hat bei der in Fig. 1 gezeigten trapezförmigen Ausführung die nach oben weisende Deckfläche 32. Sie schließt gemäß Fig. 4 mit der Grundfläche den Winkelaein, der erfindungsgemäß zwischen 10° und 45°, vorzugsweise zwischen 15° und 20° liegt. Bei einem gekrümmten Querschnitt des Doms gemäß Fig. 7 hätte diese größte Steigung nur die längs der vertikalen Mittelebene 34 verlaufende Mantellinie des Doms lo.In the trapezoidal embodiment shown in FIG. 1, the greatest slope of the exhaust air dome lo with respect to the base area 12 has the upward-facing cover surface 32. According to FIG. 4, it includes the angle area with the base area, which according to the invention is between 10 ° and 45 °, preferably between 15 ° and 2 0 °. In the case of a curved cross section of the dome according to FIG. 7, this greatest slope would only have the surface line of the dome 10 running along the vertical central plane 34.

Rings um die Grundfläche 12 ist ein senkrecht nach unten von dieser abstehender Einbaurahmen 36 an der Domfläche lo befestigt, der einen parallel 7ur Grundfläche 12 verlaufenden Befestigungsrand 38 trägt. Einbaurahmen 36 und Befestigungsrand 38 können je nach dem Querschnitt des Kanals und der Form der Abluft- öffnung, in die der Abluftdom eingesetzt werden soll, abgeändert werden. Dadurch ist der erfindungsgemäße Abluftdom sehr einfach an rechteckige, runde oder sonstige Kanalformen anzupassen.Ring around the base 12 is fixed to a vertically downwardly projecting from this mounting frame 36 on the Domfläche lo which carries a ur 7 parallel base surface 12 extending fastening edge 38th Installation frame 36 and fastening edge 38 can be modified depending on the cross section of the duct and the shape of the exhaust air opening into which the exhaust air dome is to be inserted. As a result, the exhaust air dome according to the invention is very easy to adapt to rectangular, round or other duct shapes.

In Fig. 1 ist ferner gezeigt, wie einerseits an die eine Schmalseite 22 ein weiterer gleichartiger Abluftdom lo' und andererseits an die eine Längsseite 16 ein weiterer gleichartiger Abluftdom lo" angesetzt ist. Durch Zusammensetzen mehrerer gleichartiger Abluftdome können so beliebig große öffnungen in der Kanalwand durch den erfindungsgemäßen Abluftdom überdeckt werden, wobei lediglich der Einbaurahmen entsprechend vergrößert werden muß, so daß er alle vorgesehenen Abluftdome umfaßt. Beispiele für das Hintereinandersetzen von drei Abluftdomen lo' und für das Nebeneinandersetzen von drei Abluftdomen lo" sind in der Fig. lo bzw. 11 schematisch angedeutet.In FIG. 1 it is also shown how, on the one hand, another narrow exhaust air dome 10 'on one narrow side 22 and, on the other hand, another on the long side 16 By assembling several similar exhaust air domes, openings of any size in the duct wall can be covered by the exhaust air dome according to the invention, only the installation frame having to be enlarged accordingly, so that it comprises all the intended exhaust air domes. Examples of placing three in series Exhaust domes lo 'and for placing three exhaust domes lo "next to one another are indicated schematically in FIGS.

In Fig. 2 ist in ebenfalls schematisch vereinfachter Weise gezeigt, wie ein Abluftdom lo gemäß der Erfindung mit einem Einbaurahmen 36 und einem Befestigungsrand 38 in eine entsprechende öffnung 4o einer ebenen Wandung 42 eines in Richtung des Pfeils 44 durchströmten Abluftkanals 46 eingesetzt ist. Innerhalb des Einbaurahmens ist ein an sich bekanntes Abluftgitter 48 eingesetzt, das mit seinem Rand 5o den Befestigungsrand 38 übergreift. Die Anbringung des Abluftgitters 48 ist somit durch den erfindungsgemäßen Abluftdom in keiner Weise behindert.FIG. 2 also shows in a schematically simplified manner how an exhaust air dome 10 according to the invention with a mounting frame 36 and a fastening edge 38 is inserted into a corresponding opening 4o in a flat wall 42 of an exhaust air duct 46 through which arrow 44 flows. An exhaust grille 48, known per se, is inserted within the mounting frame, and its edge 50 overlaps the fastening edge 38. The attachment of the exhaust air grille 48 is thus in no way hindered by the exhaust air dome according to the invention.

Falls aus irgendwelchen Gründen ein Stichkanal 52 (Fig. 3) mit am äußeren Ende eingesetztem Abluftgitter 48 an die öffnung 4o angesetzt werden soll, kann dies ebenfalls ohne Behinderung durch den Abluftdom lo erfolgen, indem der innere Rand 54 des Stichkanals 52 einfach von außen auf den Befestigungsrand 38 aufgesetzt wird.If, for any reason, a branch duct 52 (FIG. 3) with an exhaust air grille 48 inserted at the outer end is to be attached to the opening 40, this can also be done without hindrance by the exhaust duct 10 by simply opening the inner edge 54 of the branch duct 52 from the outside the mounting edge 38 is placed.

Wie aus Fig. 1 ersichtlich, schneiden vertikal auf der Grundfläche 12 und parallel zu den Schmalseiten 2o und 22 angeordnete Ebenen die Domfläche jeweils in trapezförmigen Linien. Stattdessen kann die Domfläche, wie erwähnt, auch so ausgebildet sein, daß die Schnittlinien mehreckig oder gemäß Fig. 7 durchgehend gekrümmt sind.As can be seen from FIG. 1, planes arranged vertically on the base surface 12 and parallel to the narrow sides 20 and 22 each cut the dome surface in trapezoidal lines. Instead, as mentioned, the dome surface can also be designed such that the cutting lines are polygonal or continuously curved according to FIG. 7.

Claims (3)

1. Abluftleitvorrichtung zum Einsetzen in eine Wandöffnung eines Abluftkanals, dadurch gekennzeichnet, daß sie eine über einer offenen rechteckigen Grundfläche (12) angeordnete, von einer Schmalseite (20) der Grundfläche (12) und den zwei Längsseiten (16, 18) der Grundfläche ausgehende gewölbte Domfläche (10) aufweist, die in allen senkrecht zur Grundfläche (12) und parallel zu deren Schmalseiten (20, 22)verlaufenden Ebenen gekrümmte (Fig. 7), trapezförmige (Fig. 5 und 6) oder mehreckige einstückige Schnittlinien bildet und deren maximale Steigung ( α) bezüglich der Grundfläche (12) über der ganzen Länge der Grundfläche gleichbleibend zwischen 100 und 450 liegt, und daß die über der einen Schmalseite (22) der Grundfläche (12) senkrecht zur Grundfläche angeordnete Stirnseite der Abluftleitvorrichtung als Drosselfläche (28) ausgebildet ist, die ganz oder teilweise längs parallel zu dieser Schmalseite (22) verlaufenden Sollbruchlinien (30) ausgebrochen ist.1. Exhaust air guiding device for insertion into a wall opening of an exhaust air duct, characterized in that it is arranged above an open rectangular base area (12), from a narrow side (20) of the base area (12) and the two long sides (16, 18) of the base area has a domed domed surface (10) which forms curved (Fig. 7), trapezoidal (Fig. 5 and 6) or polygonal one-piece cutting lines in all planes running perpendicular to the base surface (12) and parallel to the narrow sides (20, 22) thereof and their polygonal cut lines maximum gradient (α) with respect to the base area (12) over the entire length of the base area is constant between 10 0 and 45 0 , and that the one end face of the exhaust air guiding device, which is arranged perpendicular to the base area over one narrow side (22) of the base area, acts as a throttle area (28) is formed which has broken out completely or partially along predetermined breaking lines (30) running parallel to this narrow side (22). 2. Abluftleitvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß rings um die der Domfläche (10) zugeordnete Grundfläche (12) ein im wesentlichen senkrecht zur Grundfläche (12) angeordneter Einbaurahmen (36) mit einem Befestigungsrand (38) verläuft.2. Exhaust air guiding device according to claim 1, characterized in that around the base area (10) assigned base area (12) a substantially perpendicular to the base area (12) arranged mounting frame (36) with a fastening edge (38). 3. Abluftleitvorrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß zwei oder mehrere Abluftleitvorrichtungen (10', 10") in gleicher Ausrichtung mit je einer Längsseite (Fig. 11) und/oder je einer Schmalseite (Fig. 10) ihrer Grundfläche (12) aneinander angesetzt sind.3. Exhaust air guiding device according to claim 1 or 2, characterized in that two or more exhaust air guiding devices (10 ', 10 ") in the same orientation, each with a long side (Fig. 11) and / or a narrow side (Fig. 10) of their base area ( 12) are attached to each other.
EP78101606A 1977-12-21 1978-12-08 Air louver for an exhaust air duct Expired EP0002701B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2757060 1977-12-21
DE2757060A DE2757060C3 (en) 1977-12-21 1977-12-21 Exhaust air guiding device

Publications (2)

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EP0002701A1 true EP0002701A1 (en) 1979-07-11
EP0002701B1 EP0002701B1 (en) 1981-04-08

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ID=6026771

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EP78101606A Expired EP0002701B1 (en) 1977-12-21 1978-12-08 Air louver for an exhaust air duct

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EP (1) EP0002701B1 (en)
JP (1) JPS5811542B2 (en)
AT (1) AT385585B (en)
DE (1) DE2757060C3 (en)
DK (1) DK571678A (en)
ES (1) ES476172A1 (en)
NO (1) NO145852C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5736056A (en) * 1995-04-28 1998-04-07 Betzdearborn Inc. Method for enhancing biocidal activity

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3013147C2 (en) * 1980-04-03 1983-02-17 Siemens AG, 1000 Berlin und 8000 München Exhaust air light for a negative pressure ceiling

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1779163U (en) * 1958-10-21 1958-12-11 Trox Gmbh Geb AIR GRILLE WITH RECTANGULAR FRAME.
CH384173A (en) * 1961-02-14 1964-11-15 Keller Alois Exhaust connection
DE7043863U (en) * 1971-04-29 Schneider G Inlet and exhaust air grilles for ventilation systems
DE2543878A1 (en) * 1974-10-22 1976-05-06 Luwa Ag AIR CONVEYING DUCT

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE24919C (en) * F. PELZER in Dortmund Ventilation curtains or flaps
FR704959A (en) * 1930-01-24 1931-05-29 Anciens Etablissements Grouvel Device for the introduction of vapor into a liquid
DE1901790U (en) * 1964-07-02 1964-10-08 Schako Ferd Schad G M B H Meta DEVICE FOR REGULATING AIR CONDITIONING SYSTEMS USING A PIVOTING QUANTITY ADJUSTMENT.
JPS4830938U (en) * 1971-08-16 1973-04-16
DE2417582C3 (en) * 1974-04-08 1978-10-05 Eternit Ag, 1000 Berlin Ventilation duct element

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7043863U (en) * 1971-04-29 Schneider G Inlet and exhaust air grilles for ventilation systems
DE1779163U (en) * 1958-10-21 1958-12-11 Trox Gmbh Geb AIR GRILLE WITH RECTANGULAR FRAME.
CH384173A (en) * 1961-02-14 1964-11-15 Keller Alois Exhaust connection
DE2543878A1 (en) * 1974-10-22 1976-05-06 Luwa Ag AIR CONVEYING DUCT

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5736056A (en) * 1995-04-28 1998-04-07 Betzdearborn Inc. Method for enhancing biocidal activity

Also Published As

Publication number Publication date
DK571678A (en) 1979-06-22
EP0002701B1 (en) 1981-04-08
JPS5811542B2 (en) 1983-03-03
ES476172A1 (en) 1979-05-16
NO784309L (en) 1979-06-22
DE2757060A1 (en) 1979-06-28
ATA902078A (en) 1987-09-15
DE2757060B2 (en) 1980-04-30
DE2757060C3 (en) 1981-12-10
NO145852B (en) 1982-03-01
JPS5494742A (en) 1979-07-26
NO145852C (en) 1982-06-09
AT385585B (en) 1988-04-25

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