EP0554481B1 - Counter-air current installation - Google Patents

Counter-air current installation Download PDF

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Publication number
EP0554481B1
EP0554481B1 EP92101846A EP92101846A EP0554481B1 EP 0554481 B1 EP0554481 B1 EP 0554481B1 EP 92101846 A EP92101846 A EP 92101846A EP 92101846 A EP92101846 A EP 92101846A EP 0554481 B1 EP0554481 B1 EP 0554481B1
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EP
European Patent Office
Prior art keywords
air
opening
flow
housing
screening installation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP92101846A
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German (de)
French (fr)
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EP0554481A1 (en
Inventor
Gert W. Stegmaier
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.)
Gesellschaft fur Luftschleieranlagen Mbh
Original Assignee
Gesellschaft fur Luftschleieranlagen Mbh
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Application filed by Gesellschaft fur Luftschleieranlagen Mbh filed Critical Gesellschaft fur Luftschleieranlagen Mbh
Priority to DE59202087T priority Critical patent/DE59202087D1/en
Priority to DK92101846.1T priority patent/DK0554481T3/en
Priority to EP92101846A priority patent/EP0554481B1/en
Priority to ES92101846T priority patent/ES2072030T3/en
Priority to DE9218529U priority patent/DE9218529U1/en
Priority to AT92101846T priority patent/ATE122138T1/en
Publication of EP0554481A1 publication Critical patent/EP0554481A1/en
Application granted granted Critical
Publication of EP0554481B1 publication Critical patent/EP0554481B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F24F9/00—Use of air currents for screening, e.g. air curtains

Definitions

  • the invention relates to an air curtain system for generating an air flow for shielding rooms provided with an opening, in particular for generating an air curtain, consisting of a housing which is preferably to be attached to the edge of the opening to be shielded and which has an air intake and an air outlet opening the entire length of the air outlet opening is provided with at least one longitudinally extending air deflection lamella through which the emerging air flow is guided in a plane that is essentially parallel to the opening, furthermore with a blower device arranged inside the housing and a heating device provided in the flow area of the air and / or the cooling device has the fins or the like and air passage openings formed between the fins, and a filter device in the flow direction of the air is connected upstream.
  • Such an air curtain system which is used in particular in the area of doors in shops, department stores and the like, which should be open regardless of the outside temperature in order to enable unimpeded access by customers, is known from EP 0 362 958 A1, at at the air outlet opening a plurality of air deflection blades are arranged side by side and parallel to one another in such a way that turbulence in the air flow is at least avoided or reduced.
  • the air curtain systems are usually installed above the door opening, the air curtain on the one hand extending completely from the left to the right edge of the door opening and on the other hand reaching to the floor.
  • the invention has for its object to provide an air curtain system of the type mentioned in such a way that sufficient shielding by the air flow is achieved even in the lateral edge region of the openings, wherein a quick and regular maintenance and cleaning of the filter device should be possible to maintain uniform air flow conditions.
  • the filter device is formed by an intake grille arranged in the air intake opening, the air passage openings of which have a smaller clear width than that of the heating / cooling device to retain impurities in the form of dust particles and the like, and in that At both ends of the air outlet opening there is in each case at least one side lamella which is oriented transversely to the air deflection lamella and which points with its free end obliquely to the adjacent edge of the opening which runs in the direction of the air flow.
  • the advantage achieved by the invention is first of all that the impurities retained by the filter device in the form of dust particles and the like settle on the outside of the intake grille, from where they are removed even by laymen, for example by suction, without any assembly or disassembly of the housing can be. In this way, frequent and regular cleaning of the filter device formed by the intake grille is possible, so that changes in the flow profile of the air curtain by reducing the air throughput are largely excluded.
  • Another advantage of the invention can be seen in the fact that the flow portion in the edge area of the air curtain is increased by the side lamellae, as a result of which a greater side shielding and, through the effect of the Coanda effect, a closed air curtain is also achieved in the edge area.
  • the intake grille is formed from a sheet metal provided with holes arranged in a regular grid, which tightly seals the air intake opening at the edge.
  • the distance between the bores should be as small as possible and is ultimately determined solely by the required stability of the intake grille.
  • the holes can have a round or regularly polygonal edge contour.
  • the intake grille is provided on its longitudinal edges with bevelled connecting lugs which engage under tension in groove pockets from a self-supporting frame construction for the profile strips forming the housing.
  • the solution according to the invention can also be used in those air curtain systems in which an adaptation of the device length to any door width is provided by a combined self-supporting frame construction.
  • the side lamella can advantageously be provided with a recess which extends to its free end and which accommodates the air-deflecting lamella and forms a limit stop for the air-deflecting lamella on both sides.
  • the side lamella can be pivoted about an axis which is essentially perpendicular to the plane of the air deflection lamella.
  • the side lamella can also be pivotable about an axis parallel to the outflow direction of the air, so that the flow conditions in the edge region of the air curtain can be influenced to a very large extent.
  • the air curtain system shown in the drawing is used to generate an air flow by means of which building openings, that is to say doors, gates, hatches and the like, are to be shielded.
  • the air curtain system consists in particular of one, preferably not shown in the drawing, at the edge of the shielding Opening to be attached housing 1 with an air intake opening 2 and an air outlet opening 3.
  • the air outlet opening 3 extends essentially over the entire length of the housing and is provided with an air deflection lamella 4 running in the longitudinal direction.
  • the air flow exiting through the air outlet opening 3 is guided in an adjustable manner in a plane essentially parallel to the opening by means of this air deflecting lamella 4.
  • a blower device 5 and a heating and / or cooling device 6 provided in the flow area of the air are arranged in the interior of the housing 1, which are preceded by a filter device 7 in the flow direction of the air.
  • the blower device 5 is formed by a radial fan, which radially conveys the axially sucked-in air into a compensating channel 8, into which the air outlet opening 3 opens.
  • the filter device 7 is formed by an intake grille 9 arranged in the air intake opening, the air passage openings 10 of which have a smaller clear width than that of the heating / cooling device.
  • a side lamella 13 is provided, which is oriented transversely to the air deflection lamella 4 and, with its free end 13.1, points obliquely to the adjacent edge of the opening that runs in the direction of the air flow.
  • the intake grille 9 is formed according to FIG. 3 by a sheet metal provided with holes arranged in a regular grid and forming the air passage openings 10, which tightly seals the air intake opening 2 at the edges, and contrary to the simplified illustration in FIG. 3, the entire sheet metal surface with holes is provided.
  • the bores have a round edge contour, but likewise the bores can have a regularly polygonal, in particular hexagonal, shape.
  • the intake grille 9 is provided on its longitudinal edges with chamfered connecting straps 9.1, which engage under tension in groove pockets 12.1 of profile strips 12, which form a self-supporting frame construction for the housing 1.
  • the intake grille 9 can easily be used by simply cutting to length on housing constructions which can be adapted to any door widths using a simple modular design using frame profiles.
  • the side lamella 13 is provided with a recess 14 which extends to its free end and which accommodates the air deflection lamella 4 and forms a limit stop for the air deflection lamella 4 on both sides.
  • the side plate 13 can be pivoted in a manner not shown in the drawing about an axis substantially perpendicular to the plane of the air deflection plate, thereby adapting the flow conditions to the to enable special properties of the building or opening.
  • the side lamella 13 can also be pivotable about an axis parallel to the outflow direction of the air.
  • the side plate 13 is firmly connected to the air deflection plate.
  • the housing is closed on the end face by a cover plate 15, shown removed, and a cover cap 16.
  • the remaining wall parts 17 of the housing 1 are formed by molded sheets inserted into the frame profiles.
  • FIG. 1, 18 also denotes an electrical assembly that serves to control and regulate.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Flow Control Members (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
  • Ventilation (AREA)
  • Duct Arrangements (AREA)
  • Treating Waste Gases (AREA)

Abstract

The air-curtain installation is provided for generating an air flow serving for screening rooms provided with an opening, in particular for generating an air curtain. It consists of a housing (1) to be mounted preferably at the edge of the opening to be screened, with an air suction opening (2) and an air outlet opening (3), the air outlet opening (3), which extends essentially over the entire housing length, being provided with at least one air deflection lamella (4) which runs in the longitudinal direction and by which the emerging air flow is guided adjustably in a plane which is essentially parallel to the opening. Furthermore, arranged in the interior of the housing (1) are a blower device (5) and, provided in the flow region of the air, a heating and/or cooling device (6), upstream of which, in the flow direction of the air, a filter device is connected. The filter device (7) is formed by a suction grating (9) which is arranged in the air suction opening (2) and the air passage openings (10) of which have a smaller clear width than those of the heating/cooling device (6), and, at the two ends of the air outlet opening (3), in each case at least one side lamella (13) is provided, which is aligned transversely to the air deflection lamella (4) and points with its free end (13.1) obliquely towards the edge of the wall opening. <IMAGE>

Description

Die Erfindung betrifft eine Luftschleieranlage zur Erzeugung eines der Abschirmung von mit einer Öffnung versehenen Räumen dienenden Luftstroms, insbesondere zur Erzeugung eines Luftvorhangs, bestehend aus einem vorzugsweise am Rand der abzuschirmenden Öffnung anzubringenden Gehäuse mit einer Luftansaug- und einer Luftaustrittsöffnung, wobei die sich im wesentlichen über die gesamte Gehäuselänge erstreckende Luftaustrittsöffnung mit wenigstens einer in Längsrichtung verlaufenden Luftlenklamelle versehen ist, durch die der austretende Luftstrom in einer zur Öffnung im wesentlichen parallelen Ebene einstellbar geführt ist, ferner mit einer im Inneren des Gehäuses angeordneten Gebläseeinrichtung und einer im Strömungsbereich der Luft vorgesehenen Heiz- und/oder Kühleinrichtung die Lamellen oder dergl. und zwischen den Lamellen gebildete Luftdurchtrittsöffnungen aufweist, und der in Strömungsrichtung der Luft eine Filtereinrichtung vorgeschaltet ist.The invention relates to an air curtain system for generating an air flow for shielding rooms provided with an opening, in particular for generating an air curtain, consisting of a housing which is preferably to be attached to the edge of the opening to be shielded and which has an air intake and an air outlet opening the entire length of the air outlet opening is provided with at least one longitudinally extending air deflection lamella through which the emerging air flow is guided in a plane that is essentially parallel to the opening, furthermore with a blower device arranged inside the housing and a heating device provided in the flow area of the air and / or the cooling device has the fins or the like and air passage openings formed between the fins, and a filter device in the flow direction of the air is connected upstream.

Eine derartige Luftschleieranlage, die insbesondere Anwendung im Bereich von Türen bei Geschäften, Kaufhäusern und dergl. findet, die unabhängig von der Außentemperatur ständig geöffnet sein sollen, um einen ungehinderten Zutritt der Kunden zu ermöglichen, ist aus der EP 0 362 958 A1 bekannt, bei der an der Luftaustrittsöffnung mehrere Luftlenklamellen nebeneinander und parallel zueinander so angeordnet sind, daß Turbulenzen im Luftstrom zumindest vermieden oder vermindert werden.Such an air curtain system, which is used in particular in the area of doors in shops, department stores and the like, which should be open regardless of the outside temperature in order to enable unimpeded access by customers, is known from EP 0 362 958 A1, at at the air outlet opening a plurality of air deflection blades are arranged side by side and parallel to one another in such a way that turbulence in the air flow is at least avoided or reduced.

Zur Vermeidung von Energieverlusten im Winter sowie zur Unterstützung der Klimaanlage im Sommer müssen solche Luftschleieranlagen einen möglichst geschlossenen Luftschleier erzeugen, der sich über den gesamten Öffnungsquerschnitt der Tür erstreckt.In order to avoid energy losses in winter and to support the air conditioning system in summer, such air curtain systems must generate an air curtain that is as closed as possible and extends across the entire opening cross-section of the door.

Ähnliche Anwendungsfälle treten beispielsweise auch im Bereich von Industrietoren auf, die wegen der ständigen Passage von Fahrzeugen, Gabelstaplern und dergl. ebenfalls ständig offen gehalten werden müssen.Similar applications also occur, for example, in the area of industrial gates, which also have to be kept open due to the constant passage of vehicles, forklifts and the like.

Die Luftschleieranlagen werden üblicherweise oberhalb der Türöffnung angebracht, wobei der Luftschleier sich einerseits vollständig vom linken bis zum rechten Rand der Türöffnung erstrecken und andererseits bis zum Boden reichen muß.The air curtain systems are usually installed above the door opening, the air curtain on the one hand extending completely from the left to the right edge of the door opening and on the other hand reaching to the floor.

In der Praxis hat sich jedoch gezeigt, daß insbesondere an den seitlichen Rändern Strömungsverhältnisse auftreten, die dort zu keiner vollständigen Abschleierung führen, so daß über diesen Bereich nicht nur Wärmeverluste, sondern darüber hinaus lästige Zuglufterscheinungen auftreten. Beeinflußt werden diese Effekte darüber hinaus durch die Strömungsgeschwindigkeit der Luft, so daß durch regelmäßige Wartung und Austausch der im allgemeinen nicht ohne weiteres zugänglichen Filtereinrichtung für einen weitgehend gleich bleibenden Luftdurchsatz gesorgt werden muß.In practice, however, it has been found that flow conditions occur in particular at the lateral edges which do not lead to complete fogging there, so that not only heat losses but also over this area annoying drafts also occur. These effects are also influenced by the flow velocity of the air, so that regular maintenance and replacement of the filter device, which is generally not readily accessible, ensures a largely constant air throughput got to.

Der Erfindung liegt die Aufgabe zugrunde, eine Luftschleieranlage der eingangs genannten Art so auszubilden, daß auch im seitlichen Randbereich der Öffnungen eine ausreichende Abschirmung durch den Luftstrom erreicht wird, wobei zur Aufrechterhaltung gleichmäßiger Luftströmungsverhältnisse eine schnelle und regelmäßige Wartung und Reinigung der Filtereinrichtung möglich sein soll.The invention has for its object to provide an air curtain system of the type mentioned in such a way that sufficient shielding by the air flow is achieved even in the lateral edge region of the openings, wherein a quick and regular maintenance and cleaning of the filter device should be possible to maintain uniform air flow conditions.

Diese Aufgabe wird nach der Erfindung dadurch gelöst, daß die Filtereinrichtung von einem in der Luftansaugöffnung angeordneten Ansauggitter gebildet ist, dessen Luftdurchtrittsöffnungen zur Zurückhaltung von Verunreinigungen in Form von Staubpartikeln und dergl. eine geringere lichte Breite als die der Heiz-/Kühleinrichtung aufweisen, und daß an den beiden Enden der Luftaustrittsöffnung jeweils wenigstens eine Seitenlamelle vorgesehen ist, die quer zur Luftlenklamelle ausgerichtet ist und mit ihrem freien Ende schräg zu dem angrenzenden, in Richtung des Luftstroms verlaufenden Rand der Öffnung hinweist.This object is achieved according to the invention in that the filter device is formed by an intake grille arranged in the air intake opening, the air passage openings of which have a smaller clear width than that of the heating / cooling device to retain impurities in the form of dust particles and the like, and in that At both ends of the air outlet opening there is in each case at least one side lamella which is oriented transversely to the air deflection lamella and which points with its free end obliquely to the adjacent edge of the opening which runs in the direction of the air flow.

Der durch die Erfindung erreichte Vorteil besteht zunächst darin, daß die durch die Filtereinrichtung zurückgehaltenen Verunreinigungen in Form von Staubpartikeln und dergl. sich an der Außenseite des Ansauggitters absetzen, von wo sie ohne jegliche Montage bzw. Demontage des Gehäuses selbst von Laien z.B. durch Absaugen entfernt werden können. Auf diese Weise ist eine häufige und regelmäßige Reinigung der durch das Ansauggitter gebildeten Filtereinrichtung möglich, so daß Änderungen im Strömungsprofil des Luftschleiers durch Verringerung des Luftdurchsatzes weitgehend ausgeschlossen sind.The advantage achieved by the invention is first of all that the impurities retained by the filter device in the form of dust particles and the like settle on the outside of the intake grille, from where they are removed even by laymen, for example by suction, without any assembly or disassembly of the housing can be. In this way, frequent and regular cleaning of the filter device formed by the intake grille is possible, so that changes in the flow profile of the air curtain by reducing the air throughput are largely excluded.

Ein weiterer Vorteil der Erfindung ist darin zu sehen, daß der Strömungsanteil im Randbereich des Luftschleiers durch die Seitenlamellen erhöht wird, wodurch eine größere seitliche Abschirmung und durch Wirkung des Coanda-Effektes ein geschlossener Luftschleier auch im Randbereich erzielt wird.Another advantage of the invention can be seen in the fact that the flow portion in the edge area of the air curtain is increased by the side lamellae, as a result of which a greater side shielding and, through the effect of the Coanda effect, a closed air curtain is also achieved in the edge area.

In bevorzugter Ausführungsform der Erfindung ist das Ansauggitter von einem mit in regelmäßigem Raster angeordneten Bohrungen versehenen Blech gebildet, das die Luftansaugöffnung randseitig dicht abschließt. Der Abstand der Bohrungen voneinander sollte hierbei möglichst gering sein und wird letztlich allein durch die geforderte Stabilität des Ansauggitters bestimmt. Die Bohrungen können dabei eine runde oder regelmäßig vieleckige Randkontur aufweisen.In a preferred embodiment of the invention, the intake grille is formed from a sheet metal provided with holes arranged in a regular grid, which tightly seals the air intake opening at the edge. The distance between the bores should be as small as possible and is ultimately determined solely by the required stability of the intake grille. The holes can have a round or regularly polygonal edge contour.

Weiter ist in zweckmäßiger Ausgestaltung der Erfindung vorgesehen, daß das Ansauggitter an seinen Längsrändern mit abgekanteten Anschlußlaschen versehen ist, die unter Spannung in Nuttaschen von eine selbsttragende Rahmenkonstruktion für das Gehäuse bildenden Profilleisten greifen. Hierdurch läßt sich die erfindungsgemäße Lösung auch bei solchen Luftschleieranlagen einsetzen, bei denen durch eine kombinierte selbsttragende Rahmenkonstruktion eine Anpassung der Gerätelänge an beliebige Türbreiten vorgesehen ist.It is further provided in an expedient embodiment of the invention that the intake grille is provided on its longitudinal edges with bevelled connecting lugs which engage under tension in groove pockets from a self-supporting frame construction for the profile strips forming the housing. As a result, the solution according to the invention can also be used in those air curtain systems in which an adaptation of the device length to any door width is provided by a combined self-supporting frame construction.

Die Seitenlamelle kann vorteilhafterweise mit einer sich bis zu ihrem freien Ende erstreckenden Aussparung versehen sein, die die Luftlenklamelle in sich aufnimmt und einen beidseitigen Begrenzungsanschlag für die Luftlenklamelle bildet.The side lamella can advantageously be provided with a recess which extends to its free end and which accommodates the air-deflecting lamella and forms a limit stop for the air-deflecting lamella on both sides.

Um eine individuelle Anpassung der Luftströmung im Randbereich zu ermöglichen, kann weiter vorgesehen sein, daß die Seitenlamelle um eine zur Ebene der Luftlenklamelle im wesentlichen senkrechte Achse schwenkbar ist. Zusätzlich kann die Seitenlamelle auch noch um eine zur Ausströmrichtung der Luft parallele Achse schwenkbar sein, so daß eine sehr weitgehende Beeinflussung der Strömungsverhältnisse im Randbereich des Luftschleiers vorgenommen werden kann.In order to enable an individual adjustment of the air flow in the edge region, it can further be provided that the side lamella can be pivoted about an axis which is essentially perpendicular to the plane of the air deflection lamella. In addition, the side lamella can also be pivotable about an axis parallel to the outflow direction of the air, so that the flow conditions in the edge region of the air curtain can be influenced to a very large extent.

Schließlich besteht auch die Möglichkeit, daß die Seitenlamelle fest an der Luftlenklamelle angeschlossen ist.Finally, there is also the possibility that the side plate is firmly connected to the air deflection plate.

Im folgenden wird die Erfindung an einem in der Zeichnung dargestellten Ausführungsbeispiel näher erläutert; es zeigen:

Fig. 1
eine perspektivische Darstellung der Luftschleieranlage, teilweise geöffnet,
Fig. 2
eine Detaildarstellung des Gegenstands nach Fig. 1 in nur teilweiser Wiedergabe,
Fig. 3
eine schematische Darstellung der als Ansauggitter ausgebildeten Filtereinrichtung als Ausschnitt.
In the following the invention is explained in more detail using an exemplary embodiment shown in the drawing; show it:
Fig. 1
a perspective view of the air curtain system, partially opened,
Fig. 2
2 shows a detailed representation of the object according to FIG. 1 in only partial reproduction,
Fig. 3
a schematic representation of the filter device designed as an intake grille as a section.

Die in der Zeichnung dargestellte Luftschleieranlage dient zur Erzeugung eines Luftstroms, durch den eine Abschirmung von Gebäudeöffnungen, also Türen, Toren, Durchreichen und dergl. vorgenommen werden soll. Die Luftschleieranlage besteht im einzelnen aus einem vorzugsweise am Rand der abzuschirmenden, in der Zeichnung nicht dargestellten Öffnung anzubringenden Gehäuse 1 mit einer Luftansaugöffnung 2 sowie einer Luftaustrittsöffnung 3. Die Luftaustrittsöffnung 3 erstreckt sich dabei im wesentlichen über die gesamte Gehäuselänge und ist mit einer in Längsrichtung verlaufenden Luftlenklamelle 4 versehen. Durch diese Luftlenklamelle 4 wird der durch die Luftaustrittsöffnung 3 austretende Luftstrom in einer zur Öffnung im wesentlichen parallelen Ebene einstellbar geführt.The air curtain system shown in the drawing is used to generate an air flow by means of which building openings, that is to say doors, gates, hatches and the like, are to be shielded. The air curtain system consists in particular of one, preferably not shown in the drawing, at the edge of the shielding Opening to be attached housing 1 with an air intake opening 2 and an air outlet opening 3. The air outlet opening 3 extends essentially over the entire length of the housing and is provided with an air deflection lamella 4 running in the longitudinal direction. The air flow exiting through the air outlet opening 3 is guided in an adjustable manner in a plane essentially parallel to the opening by means of this air deflecting lamella 4.

Ferner ist im Inneren des Gehäuses 1 eine Gebläseeinrichtung 5 und eine im Strömungsbereich der Luft vorgesehene Heiz- und/oder Kühleinrichtung 6 angeordnet, der in Strömungsrichtung der Luft eine Filtereinrichtung 7 vorgeschaltet sind. Die Gebläseeinrichtung 5 ist von einem Radiallüfter gebildet, der die axial angesaugte Luft radial in einen Ausgleichskanal 8 fördert, in den die Luftaustrittsöffnung 3 mündet. Die Filtereinrichtung 7 ist von einem in der Luftansaugöffnung angeordneten Ansauggitter 9 gebildet, dessen Luftdurchtrittsöffnungen 10 eine geringere lichte Breite als die der Heiz-/Kühleinrichtung aufweisen. Hierdurch wird unter Verzicht auf spezielle Filterelemente eine Verschmutzung der in der Regel mit in der Zeichnung nur angedeuteten Lamellen 11 zur Wärmeübertragung ausgestatteten Heiz-/Kühleinrichtung 6 vermieden, da die Schmutzteilchen an der Außenseite des Gehäuses 1 am Ansauggitter 9 abgefangen werden. Hierdurch ist weiter eine häufige, einfache und schnelle Reinigung dieser Filtereinrichtung möglich, da die sich an der Außenseite ansammelnden Schmutzpartikel beispielsweise mit Hilfe eines Staubsaugers entfernt werden können.Furthermore, a blower device 5 and a heating and / or cooling device 6 provided in the flow area of the air are arranged in the interior of the housing 1, which are preceded by a filter device 7 in the flow direction of the air. The blower device 5 is formed by a radial fan, which radially conveys the axially sucked-in air into a compensating channel 8, into which the air outlet opening 3 opens. The filter device 7 is formed by an intake grille 9 arranged in the air intake opening, the air passage openings 10 of which have a smaller clear width than that of the heating / cooling device. This avoids contamination of the heating / cooling device 6, which is generally equipped with fins 11 indicated in the drawing for heat transfer, without special filter elements, since the dirt particles on the outside of the housing 1 are caught on the intake grille 9. As a result, frequent, simple and quick cleaning of this filter device is possible, since the dirt particles accumulating on the outside can be removed, for example, with the aid of a vacuum cleaner.

An den beiden Enden der Luftaustrittsöffnung 3 ist jeweils eine Seitenlamelle 13 vorgesehen, die quer zur Luftlenklamelle 4 ausgerichtet ist und mit ihrem freien Ende 13.1 schräg zu dem angrenzenden, in Richtung des Luftstroms verlaufenden Rand der Öffnung hinweist.At each of the two ends of the air outlet opening 3, a side lamella 13 is provided, which is oriented transversely to the air deflection lamella 4 and, with its free end 13.1, points obliquely to the adjacent edge of the opening that runs in the direction of the air flow.

Das Ansauggitter 9 ist gemäß Fig. 3 von einem mit in regelmäßigem Raster angeordneten, die Luftdurchtrittsöffnungen 10 bildenden Bohrungen versehenen Blech gebildet, das die Luftansaugöffnung 2 randseitig dicht abschließt, wobei entgegen der vereinfachten Darstellung in Fig. 3 in der Regel die gesamte Blechfläche mit Bohrungen versehen ist. In dem Ausführungsbeispiel weisen die Bohrungen eine runde Randkontur auf, ebenso können die Bohrungen jedoch eine regelmäßig vieleckige, insbesondere sechseckige Gestalt besitzen.The intake grille 9 is formed according to FIG. 3 by a sheet metal provided with holes arranged in a regular grid and forming the air passage openings 10, which tightly seals the air intake opening 2 at the edges, and contrary to the simplified illustration in FIG. 3, the entire sheet metal surface with holes is provided. In the exemplary embodiment, the bores have a round edge contour, but likewise the bores can have a regularly polygonal, in particular hexagonal, shape.

Das Ansauggitter 9 ist an seinen Längsrändern mit abgekanteten Anschlußlaschen 9.1 versehen, die unter Spannung in Nuttaschen 12.1 von Profilleisten 12 greifen, die eine selbsttragende Rahmenkonstruktion für das Gehäuse 1 bilden. Dadurch läßt sich das Ansauggitter 9 ohne weiteres durch einfaches Ablängen auch an solchen Gehäusekonstruktionen einsetzen, die durch einfache Baukastenbauweise unter Verwendung von Rahmenprofilen an beliebige Türbreiten anpaßbar sind.The intake grille 9 is provided on its longitudinal edges with chamfered connecting straps 9.1, which engage under tension in groove pockets 12.1 of profile strips 12, which form a self-supporting frame construction for the housing 1. As a result, the intake grille 9 can easily be used by simply cutting to length on housing constructions which can be adapted to any door widths using a simple modular design using frame profiles.

Die Seitenlamelle 13 ist mit einer sich bis zu ihrem freien Ende erstreckenden Aussparung 14 versehen, die die Luftlenklamelle 4 in sich aufnimmt und einen beidseitigen Begrenzungsanschlag für die Luftlenklamelle 4 bildet.The side lamella 13 is provided with a recess 14 which extends to its free end and which accommodates the air deflection lamella 4 and forms a limit stop for the air deflection lamella 4 on both sides.

Die Seitenlamelle 13 kann in in der Zeichnung nicht näher dargestellter Weise um eine zur Ebene der Luftlenklamelle im wesentlichen senkrechte Achse schwenkbar sein, um hierdurch eine Anpassung der Strömungsverhältnisse an die speziellen Eigenschaften des Gebäudes bzw. der Öffnung zu ermöglichen. Zusätzlich kann hierfür die Seitenlamelle 13 noch um eine zur Ausströmrichtung der Luft parallele Achse schwenkbar sein. Schließlich besteht auch die Möglichkeit, daß die Seitenlamelle 13 fest an der Luftlenklamelle angeschlossen ist.The side plate 13 can be pivoted in a manner not shown in the drawing about an axis substantially perpendicular to the plane of the air deflection plate, thereby adapting the flow conditions to the to enable special properties of the building or opening. For this purpose, the side lamella 13 can also be pivotable about an axis parallel to the outflow direction of the air. Finally, there is also the possibility that the side plate 13 is firmly connected to the air deflection plate.

Das Gehäuse ist stirnseitig durch ein abgenommen dargestelltes Deckblech 15 sowie eine Abdeckkappe 16 geschlossen. Die übrigen Wandteile 17 des Gehäuses 1 sind durch in die Rahmenprofile eingesteckte Formbleche gebildet.The housing is closed on the end face by a cover plate 15, shown removed, and a cover cap 16. The remaining wall parts 17 of the housing 1 are formed by molded sheets inserted into the frame profiles.

Schließlich ist in Fig. 1 mit 18 noch eine der Steuerung und Regelung dienende elektrische Baugruppe bezeichnet.Finally, in FIG. 1, 18 also denotes an electrical assembly that serves to control and regulate.

Claims (8)

  1. An air screening installation for producing an air flow which serves to screen off spaces provided with an opening, in particular for producing an air curtain, comprising a housing (1) which is preferably to be mounted at the edge of the opening to be screened off and which has an air suction intake opening (2) and an air discharge opening (3), wherein the air discharge opening (3) which extends substantially over the entire length of the housing is provided with at least one air guide plate (4) which extends in the longitudinal direction and by which the issuing air flow is guided adjustably in a plane substantially parallel to the opening, further comprising a fan device (5) arranged in the interior of the housing (1), and a heating and/or cooling device (6) which is provided in the flow region of the air and which has plates (11) or the like and air passage openings formed between the plates (11) and upstream of which, in the direction of flow of the air, is disposed a filter device, characterised in that the filter device (7) is formed by a suction intake grid (9) which is arranged in the air suction intake opening (2) and whose air passage openings (10), for retaining impurities in the form of dust particles and the like, are of a smaller inside width than that of the heating/cooling device (6), and that provided at each of the two ends of the air discharge opening (3) is at least one respective side plate (13) which is oriented transversely to the air guide plate (4) and which with its free end (13.1) points inclinedly to the adjoining edge of the opening, which edge extends in the direction of the air flow.
  2. An air screening installation according to claim 1 characterised in that the suction intake grid (9) is formed by a plate which is provided with bores arranged in a regular pattern and which sealingly closes off the air suction intake opening (2) at the edges.
  3. An air screening installation according to claim 2 characterised in that the bores are of a round or regularly polygonal edge contour.
  4. An air screening installation according to claim 2 or claim 3 characterised in that the suction intake grid (9) is provided at its longitudinal edges with angled connecting bar portions (9.1) which engage under stress into groove pockets (12.1) of shaped strip portions (12) forming a self-supporting frame structure for the housing (1).
  5. An air screening installation according to one of claims 1 to 4 characterised in that the side plate (13) is provided with an opening (14) which extends to the free end (13.1) of the side plate and which accommodates the air guide plate (4) in it and forms a limiting abutment at both sides for the air guide plate (4).
  6. An air screening installation according to claim 5 characterised in that the side plate (13) is pivotable about an axis which is substantially perpendicular to the plane of the air guide plate (4).
  7. An air screening installation according to claim 5 or claim 6 characterised in that the side plate (13) is pivotable about an axis which is parallel to the air discharge flow direction.
  8. An air screening installation according to claim 5 or claim 6 characterised in that the side plate (13) is fixedly connected to the air guide plate (4).
EP92101846A 1992-02-05 1992-02-05 Counter-air current installation Expired - Lifetime EP0554481B1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
DE59202087T DE59202087D1 (en) 1992-02-05 1992-02-05 Air curtain system.
DK92101846.1T DK0554481T3 (en) 1992-02-05 1992-02-05 Installations for generating an air veil
EP92101846A EP0554481B1 (en) 1992-02-05 1992-02-05 Counter-air current installation
ES92101846T ES2072030T3 (en) 1992-02-05 1992-02-05 INSTALLATION OF AIR CURTAIN.
DE9218529U DE9218529U1 (en) 1992-02-05 1992-02-05 Air curtain system
AT92101846T ATE122138T1 (en) 1992-02-05 1992-02-05 AIR CURTAIN SYSTEM.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP92101846A EP0554481B1 (en) 1992-02-05 1992-02-05 Counter-air current installation

Publications (2)

Publication Number Publication Date
EP0554481A1 EP0554481A1 (en) 1993-08-11
EP0554481B1 true EP0554481B1 (en) 1995-05-03

Family

ID=8209298

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92101846A Expired - Lifetime EP0554481B1 (en) 1992-02-05 1992-02-05 Counter-air current installation

Country Status (5)

Country Link
EP (1) EP0554481B1 (en)
AT (1) ATE122138T1 (en)
DE (2) DE59202087D1 (en)
DK (1) DK0554481T3 (en)
ES (1) ES2072030T3 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202015106193U1 (en) 2015-11-16 2015-11-23 Ulf Peschke Air curtain system
DE202015106194U1 (en) 2015-11-16 2015-11-23 Ulf Peschke Air curtain system
DE102015119769A1 (en) 2015-11-16 2017-05-18 Ulf Peschke Air curtain system

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4404733A1 (en) * 1994-02-15 1995-08-17 Lks Luft Und Klimaservice Chri Wind protection device for opening door
DE19641784C1 (en) * 1996-10-10 1998-05-20 Mueller Erwin Gmbh & Co Air curtain unit
DE102010024823A1 (en) * 2010-06-23 2011-12-29 LGB Lufttechnische Anlagen und Gerätebau GmbH Device for producing cooled air curtain from airflow in input range of air-conditioned spaces, has conduit utilized for guiding cooling medium, horizontally guided through packet and connected with packet in heat-conductive manner

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8802430A (en) * 1988-10-04 1990-05-01 Biddle F H Bv AIR CURTAIN DEVICE.
DE9010016U1 (en) * 1990-07-02 1990-09-06 Teddington Controls GmbH, 5202 Hennef Device for generating an air curtain

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202015106193U1 (en) 2015-11-16 2015-11-23 Ulf Peschke Air curtain system
DE202015106194U1 (en) 2015-11-16 2015-11-23 Ulf Peschke Air curtain system
EP3168545A1 (en) 2015-11-16 2017-05-17 Ulf Peschke Air curtain system
DE102015119769A1 (en) 2015-11-16 2017-05-18 Ulf Peschke Air curtain system

Also Published As

Publication number Publication date
ES2072030T3 (en) 1995-07-01
ATE122138T1 (en) 1995-05-15
DE9218529U1 (en) 1994-05-19
DE59202087D1 (en) 1995-06-08
EP0554481A1 (en) 1993-08-11
DK0554481T3 (en) 1995-07-24

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