EP3168545B1 - Air curtain system - Google Patents
Air curtain system Download PDFInfo
- Publication number
- EP3168545B1 EP3168545B1 EP16197462.1A EP16197462A EP3168545B1 EP 3168545 B1 EP3168545 B1 EP 3168545B1 EP 16197462 A EP16197462 A EP 16197462A EP 3168545 B1 EP3168545 B1 EP 3168545B1
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- EP
- European Patent Office
- Prior art keywords
- air
- curtain system
- nozzle body
- air curtain
- plates
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
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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
- F24F13/02—Ducting arrangements
- F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
- F24F13/072—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser of elongated shape, e.g. between ceiling panels
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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
- F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
- F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
- F24F13/15—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre with parallel simultaneously tiltable lamellae
Definitions
- the invention relates to an air curtain system for generating an air flow for shielding rooms provided with doors or gates, with a housing which has an air inlet opening (28), a blower device, at least one air guide plate and an air outlet opening in a two cylindrical segment-shaped arrangement which is pivotable about its longitudinal axis Has round plates (31, 32) nozzle body, with all possible pivoting positions of the nozzle body, its interior is shielded from the outside of the outside of the housing to prevent undesirable backflow of air into the housing on the nozzle and air outlet side.
- air curtain systems are used to create a barrier from an air flow that separates differently conditioned air masses from inside and outside, so that an exchange, in particular a heat exchange, is prevented.
- the barrier is created by a directed air flow using the nozzle body.
- air curtain systems can also be used in industrial plants, in which the outside environment is protected from odor nuisance, as occurs, for example, in waste processing plants.
- air curtain systems are known which work with an air flow from above is directed downwards as well as those air curtain systems in which the air flow is guided horizontally.
- the DE 296 17 626 U1 described an air curtain system in which a fan and filter are arranged in a housing provided with air intake openings and air outlet openings.
- a radiant panel should be used between the air intake openings and the air outlet openings.
- the radiant panel can be designed to be electrically heatable.
- the DE 20 2008 011 500 U1 describes an air curtain system with a housing and a nozzle body which is arranged in the housing so as to be pivotable about a longitudinal axis and has a nozzle slot from which the air producing the air curtain is blown out.
- the angle of attack of the air curtain can be changed by swiveling the nozzle body.
- a locking mechanism is provided in order to be able to fix the various swivel positions of the nozzle body.
- Guide profiles with which the air flow can be guided in a targeted manner are in the DE 10 2008 042 803 B4 described, wherein the two guide profiles provided are connected by a connecting means such that when the guide profiles are pivoted together, the first guide profile can pivot by a different angle than the second guide profile.
- the EP 0 554 481 B1 describes an air curtain system with a housing which has an air intake and an air outlet opening, which is provided with at least one longitudinally extending air deflection lamella through which the exiting air flow is guided in a plane which is essentially parallel to the opening.
- a further side lamella should be provided at both ends of the air outlet opening.
- the cylindrical segment-shaped round sheets of the nozzle preferably have a different width on the opposite sides, so that the nozzles are suitable for installation on the left as well as on the right in air curtain systems with columns which enable horizontal air guidance to produce an air wall.
- the wider sheet preferably has a pitch circle angle between 80 ° and 120 °, the narrower round sheet having a width of 70 ° to 110 °.
- a straight edge piece lying at the nozzle outlet and an angled edge piece on the opposite side are provided on the cover plate, preferably at an obtuse angle of 190 ° to 220 °, further preferably of 200 °.
- the slats are additionally supported by intermediate plates which are arranged parallel to the cover plates.
- the number of intermediate plates i.e. whether only one, two or more intermediate plates are used depends on the total length of the slats and their stability. In any case, these intermediate plates prevent the slats from bending.
- flat, flat baffles are provided which extend over the entire length of the nozzle body.
- a space for guiding the air flow which is completely delimited by air guide plates, is provided between the blower device and the nozzle body.
- These sheets prevent the air sucked in and flowing out of the blower or the fan roller from generating eddies in corner regions of the housing body, which counteract a laminar flow of flow.
- the housing body or its outer contour can be designed as desired by the existing air guide plates.
- the air guide plates consist of a tear-off plate, which is arranged between the nozzle body and the blower device, and an arc plate, which, from the housing wall, forms the rear, at a distance from the blower device, and the lateral region of the air duct, and which extends into a straight, flat air guide plate that extends to the nozzle body flows.
- the Tear-off plate preferably has an arcuate profile part, which merges into a straight profile piece projecting in the direction of the blower device.
- the straight profile piece has in particular a cross-sectional width of 8 mm to 10 mm and / or is arranged at an angle to the secant of the arcuate profile part between 75 ° and 85 °, preferably 80 °.
- the arch plate has a shape in which, viewed in cross section, it merges from a straight profile piece into a curved part and then again into the straight air baffle, the curved part preferably having a radius between 80 mm and 110 mm, preferably 95 mm.
- the arch part can also consist of a sheet whose cross section forms a polygon. The distances from the sheet to the fan roller are decisive for the outflow pressure.
- the housing is designed as a column from which the air flow is blown out horizontally.
- the housing is preferably constructed in a modular manner and consists of a module part having the motor drive for the blower device and at least one further module part with a blower device and a nozzle body. If necessary, with very high doors or gates, a single motor drive is used to drive several fan rollers in modules arranged one above the other (or in the case of a horizontal arrangement).
- the housing consists of four vertically arranged corner profiles 22 which are screwed to a cover plate 23 at their upper and lower ends.
- the nozzle body 24 and a tear-off plate 25, an air baffle plate 26 and an arc plate 27 (see Fig. 2 , 3rd ) recognizable, which suck in air from an air inlet opening represented by the arrow 28, which via a fan roller 29 for Nozzle 24 is conveyed where it emerges from the air outlet opening, represented by arrow 30.
- the blow-out angle in addition to the volume flow and the speed, the blow-out angle in particular must be controlled so that a force is created by the blown-out air flow, which effectively prevents outside air from entering the interior of the building.
- An essential function here is the construction of the nozzle 24, which in an exploded view with the components used Figures 4 to 8 can be seen in detail.
- the nozzle has round plates 31 and 32 of different lengths, which extend over the entire height.
- the width of the round plates is adjusted so that the interior of the nozzle is shielded against the ingress of outside air at every possible and necessary swivel position.
- the round plates 31 and 32 are always sealed off from the interior, in particular at the edge of the tear-off plate 25 and the end edge of the air guide plate 26.
- the round sheets 31 and 32 of different lengths also have the advantage that the round sheets can be used with both left-hand and right-hand columns.
- the round sheets are held at the upper and lower ends by respective cover sheets 33, 34, which have a straight edge piece 35 lying at the nozzle outlet and an angled edge piece 36 on the opposite side, which preferably enclose an obtuse angle of 190 ° to 220 °.
- a tear-off plate 25 is provided between the nozzle 24 and the fan roller 29 that consists of an arcuate profile part 251 and a rectilinear part 252 consists.
- the curved part has a radius of approximately 50 mm and the straight profile piece 252 has a width of approximately 8 mm.
- the bend is designed so that the included angle ⁇ is approximately 145 °.
- the angle between the secant bridging the end points of the arch part 251 and the straight profile piece 252 is 80 °.
- an arc plate 27 is provided for guiding the air stream flowing in via the suction opening, which initially - viewed in cross section - extends from the housing wall 211 over a straight piece 271 with a width of approx. 90 mm over an arc part 272 with a radius extends between 90 mm and 100 mm and merges into a straight piece, the air baffle 26, a width of about 75 mm, which extends up to the nozzle 24 or the nozzle edge 241 (see Fig. 5 ) enough.
- the setting of the angles at which the air can flow out is effected by rotating the nozzle 24, with columns ideally being arranged to the right and left of the door opening, which generate an air flow directed outward at an angle in the form of an air curtain.
- the column module 21 can also be provided with an outer covering.
- Fig. 19 shows an air curtain system in column form, in which three identical modules 21, 44 and 45 and as the top module 46, which contains the drive for all fan rollers, are arranged one above the other.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
- Air-Flow Control Members (AREA)
Description
Die Erfindung betrifft eine Luftschleieranlage zur Erzeugung eines der Abschirmung von mit Türen oder Toren versehenen Räumen dienenden Luftstroms, mit einem Gehäuse, das eine Lufteintrittsöffnung (28), eine Gebläseeinrichtung, mindestens ein Luftführungsblech und eine Luftaustrittsöffnung in einem um seine Längsachse schwenkbar angeordneten, zwei zylindersegmentförmige Rundbleche (31, 32) aufweisenden Düsenkörper besitzt, wobei bei allen möglichen Schwenkstellungen des Düsenkörpers dessen Innenraum gegenüber dem außerhalb des Gehäuses liegenden Außenraum abgeschirmt ist, um unerwünschte Rückströmungen der Luft in das Gehäuse auf der Düsen- und Luftaustrittsseite zu verhindern.The invention relates to an air curtain system for generating an air flow for shielding rooms provided with doors or gates, with a housing which has an air inlet opening (28), a blower device, at least one air guide plate and an air outlet opening in a two cylindrical segment-shaped arrangement which is pivotable about its longitudinal axis Has round plates (31, 32) nozzle body, with all possible pivoting positions of the nozzle body, its interior is shielded from the outside of the outside of the housing to prevent undesirable backflow of air into the housing on the nozzle and air outlet side.
Eine solche Luftschleieranlage wird in den Unterlagen des Gebrauchsmusters
In Geschäften, Kaufhäusern oder sonstigen Ausstellungsräumen mit häufig oder ständig geöffneten Türen oder Toren, die den ungehinderten Zutritt der Kunden ermöglichen sollen, werden Luftschleieranlagen benutzt, um eine Barriere aus einen Luftstrom zu erzeugen, der unterschiedlich konditionierte Luftmassen im Inneren und Außen voneinander trennt, so dass ein Austausch, insbesondere ein Wärmeaustausch verhindert wird. Die Barriere wird durch eine gerichtete Luftströmung mittels des Düsenkörpers erzeugt. Mit solchen Luftschleieranlagen kann im Sommer das Eindringen von warmer Außenluft in die gekühlten Räume ebenso verhindert werden wie das Eindringen von Kaltluft in die erwärmten Innenräume im Winter. Mit Luftschleieranlagen lassen sich Energieverluste, die ansonsten entstehen, erheblich minimieren.In shops, department stores or other showrooms with frequently or constantly open doors or gates, which are intended to enable unimpeded access by customers, air curtain systems are used to create a barrier from an air flow that separates differently conditioned air masses from inside and outside, so that an exchange, in particular a heat exchange, is prevented. The barrier is created by a directed air flow using the nozzle body. With air curtain systems of this kind, the penetration of warm outside air into the cooled rooms can be prevented in summer as well as the entry of cold air into the warmed inside rooms in winter. With air curtain systems, energy losses that would otherwise occur can be significantly minimized.
Des Weiteren können Luftschleieranlagen auch in Industriebetrieben verwendet werden, in denen die Außenumgebung von Geruchsbelästigung, wie sie beispielsweise in Müllverarbeitungsbetrieben auftreten, verschont bleibt. Nach dem Stand der Technik sind Luftschleieranlagen bekannt, die mit einem Luftstrom arbeiten, der von oben nach unten gerichtet ist als auch solche Luftschleieranlagen, bei denen der Luftstrom waagerecht geführt wird.In addition, air curtain systems can also be used in industrial plants, in which the outside environment is protected from odor nuisance, as occurs, for example, in waste processing plants. According to the prior art, air curtain systems are known which work with an air flow from above is directed downwards as well as those air curtain systems in which the air flow is guided horizontally.
So wird beispielsweise in den Unterlagen der
Die
Leitprofile, mit denen der Luftstrom gezielt geführt werden kann, werden in der
Die
Der Nachteil der im Stand der Technik beschriebenen Anlagen besteht darin, dass entweder zur Halterung und Verstellung der Lamellen ein hoher baulicher Aufwand betrieben wird, der vielfach mit einer Störungsanfälligkeit einhergeht, oder das bei der Verstellung des Düsenkörpers bei hohen Winkelverstellungen die Gefahr besteht, dass die Düse nicht ausreichend abgeschirmt ist, um den Rückfluss von Luft in das Gehäuseinnere zu vermeiden. Durch solche unkontrollierbaren Luftbewegungen verschlechtert sich der Wirkungsgrad der Luftschleieranlagen, weil zwangsläufig auftretende Turbulenzen einen gewünschten laminaren Luftstrom zur Ausbildung des "Luftvorgangs" behindern. Abhilfe kann zwar dadurch geschaffen werden, dass die Lamellen entsprechend breit gefertigt und die Düsenkörperwandungen entsprechend breit ausgebildet sind, jedoch vergrößert sich hierbei die Bautiefe des Gehäuses für die Luftschleieranlage, was aus praktischen wie optischen Gründen unerwünscht ist. Bei einer solchen Ausbildung droht auch die Gefahr, dass der Luftwiderstand des Düsenkörpers unnötig erhöht wird.The disadvantage of the systems described in the prior art is that either a high level of structural effort is required to hold and adjust the slats, which is often associated with a susceptibility to malfunction, or that there is a risk that the nozzle body will be adjusted with high angle adjustments The nozzle is not adequately shielded to prevent air from flowing back into the interior of the housing. Such uncontrollable air movements degrade the efficiency of the air curtain systems because they are inevitable Turbulence occurring hinder a desired laminar air flow to form the "air process". This can be remedied by making the lamellae correspondingly wide and the nozzle body walls correspondingly wide, but this increases the overall depth of the housing for the air curtain system, which is undesirable for practical and optical reasons. With such a design there is also the risk that the air resistance of the nozzle body is increased unnecessarily.
Es ist Aufgabe der vorliegenden Erfindung eine Luftschleieranlage der eingangs genannten Art dermaßen zu verbessern, dass ein möglichst schmaler Düsenkörper mit geringer Bautiefe geschaffen wird und sonstige unerwünschten Luftrückströmungen über die Düsenaustrittsöffnungen in das Gehäuseinnere vermieden werden.It is an object of the present invention to improve an air curtain system of the type mentioned at the outset in such a way that the narrowest possible nozzle body with a low overall depth is created and other undesirable backflow of air through the nozzle outlet openings into the interior of the housing is avoided.
Dieser Aufgabe wird durch die Luftschleieranlage nach Anspruch 1 gelöst. Bevorzugte Ausführungsformen sind in den Unteransprüchen definiert.This object is achieved by the air curtain system according to claim 1. Preferred embodiments are defined in the subclaims.
Vorzugsweise besitzen die zylindersegmentförmigen Rundbleche der Düse an den gegenüberliegenden Seiten eine unterschiedliche Breite, so dass die Düsen sowohl zum links- als auch zum rechtsseitigen Einbau in Luftschleieranlagen mit Säulen geeignet sind, die eine horizontale Luftführung zur Erzeugung einer Luftwand ermöglichen. Vorzugsweise besitzt das breitere Blech einen Teilkreiswinkel zwischen 80° und 120°, wobei das schmalere Rundblech eine Breite von 70° bis 110° aufweist.The cylindrical segment-shaped round sheets of the nozzle preferably have a different width on the opposite sides, so that the nozzles are suitable for installation on the left as well as on the right in air curtain systems with columns which enable horizontal air guidance to produce an air wall. The wider sheet preferably has a pitch circle angle between 80 ° and 120 °, the narrower round sheet having a width of 70 ° to 110 °.
Nach einer weiteren Ausgestaltung der Erfindung sind am Deckelblech außer den beiden teilkreisförmigen Kantenstücken noch ein am Düsenaustritt liegendes gerades Kantenstück und auf der gegenüberliegenden Seite ein abgewinkeltes Kantenstück vorgesehen, vorzugsweise unter einem stumpfen Winkel von 190° bis 220°, weiterhin vorzugsweise von 200°. Diese Ausbildung schafft eine optimale Abdichtung der Düse an den Stirnflächen bei geringer Bauhöhe. Die zylindersegmentförmigen Rundbleche werden über den gesamten Teilkreisbogen sicher gehalten.According to a further embodiment of the invention, in addition to the two part-circular edge pieces, a straight edge piece lying at the nozzle outlet and an angled edge piece on the opposite side are provided on the cover plate, preferably at an obtuse angle of 190 ° to 220 °, further preferably of 200 °. This training creates an optimal seal of the nozzle on the end faces with a low overall height. The cylindrical segment-shaped round sheets are held securely over the entire pitch arc.
Nach einer weiteren Ausbildung der Erfindung sind die Lamellen noch zusätzlich durch Zwischenbleche abgestützt, die parallel zu den Deckelblechen angeordnet sind. Die Anzahl der Zwischenbleche, d.h. ob nur ein, zwei oder mehr Zwischenbleche verwendet werden, hängt von der Gesamtlänge der Lamellen und deren Stabilität ab. In jedem Fall verhindern diese Zwischenbleche Durchbiegungen der Lamellen. Zur Verbesserung des Strömungsflusses innerhalb der Düse sind bis auf ein geringfügigen Versatz von maximal 5 mm jeweils von den Rändern der Einlassöffnung zu den Rändern der Auslassöffnung in mitten des Düsenkörpers flache, ebene Ableitbleche vorgesehen, die sich über die gesamte Länge des Düsenkörpers erstrecken.According to a further embodiment of the invention, the slats are additionally supported by intermediate plates which are arranged parallel to the cover plates. The number of intermediate plates, i.e. whether only one, two or more intermediate plates are used depends on the total length of the slats and their stability. In any case, these intermediate plates prevent the slats from bending. To improve the flow of flow within the nozzle, apart from a slight offset of at most 5 mm from the edges of the inlet opening to the edges of the outlet opening in the middle of the nozzle body, flat, flat baffles are provided which extend over the entire length of the nozzle body.
Nach einer weiteren Ausbildung der Erfindung ist zwischen der Gebläseeinrichtung und dem Düsenkörper ein komplett durch Luftführungsbleche begrenzter Raum zur Führung des Luftstroms vorgesehen. Diese Bleche verhindern, dass die angesaugte und aus dem Gebläse bzw. der Lüfterwalze ausströmende Luft in Eckenbereichen des Gehäusekörpers Verwirbelungen erzeugen, die einem laminaren Strömungsfluss entgegenwirken. Durch die vorhandenen Luftführungsbleche kann der Gehäusekörper bzw. seine Außenkontur beliebig gestaltet werden.According to a further embodiment of the invention, a space for guiding the air flow, which is completely delimited by air guide plates, is provided between the blower device and the nozzle body. These sheets prevent the air sucked in and flowing out of the blower or the fan roller from generating eddies in corner regions of the housing body, which counteract a laminar flow of flow. The housing body or its outer contour can be designed as desired by the existing air guide plates.
Vorzugsweise bestehen die Luftführungsbleche aus einem Abreißerblech, das zwischen dem Düsenkörper und der Gebläseeinrichtung angeordnet ist und einem Bogenblech, das von der Gehäusewand aus den hinteren im Abstand zur Gebläseeinrichtung und den seitlichen Bereich des Luftführungskanals bildet und das in ein gerades, ebenes zum Düsenkörper reichendes Luftleitblech mündet. Das Abreißerblech besitzt vorzugsweise ein bogenförmiges Profilteil, welches in ein geradliniges, in Richtung der Gebläseeinrichtung ragendes Profilstück übergeht. Das gerade Profilstück besitzt insbesondere eine Querschnittsbreite von 8 mm bis 10 mm und/oder ist in einem Winkel zur Sekante des bogenförmigen Profilteils zwischen 75° und 85°, vorzugsweise 80° angeordnet.Preferably, the air guide plates consist of a tear-off plate, which is arranged between the nozzle body and the blower device, and an arc plate, which, from the housing wall, forms the rear, at a distance from the blower device, and the lateral region of the air duct, and which extends into a straight, flat air guide plate that extends to the nozzle body flows. The Tear-off plate preferably has an arcuate profile part, which merges into a straight profile piece projecting in the direction of the blower device. The straight profile piece has in particular a cross-sectional width of 8 mm to 10 mm and / or is arranged at an angle to the secant of the arcuate profile part between 75 ° and 85 °, preferably 80 °.
Schließlich besitzt das Bogenblech eine Form, bei der es im Querschnitt betrachtet von einem geradlinigen Profilstück in ein Bogenteil und anschließend wieder in das geradlinige Luftleitblech übergeht, wobei der Bogenteil vorzugsweise einen Radius zwischen 80 mm und 110 mm, vorzugsweise 95 mm aufweist. Das Bogenteil kann auch aus einem Blech bestehen, dessen Querschnitt ein Polygon bildet. Die Abstände vom Bogenblech zur Lüfterwalze sind für den Ausströmungsdruck ausschlaggebend.Finally, the arch plate has a shape in which, viewed in cross section, it merges from a straight profile piece into a curved part and then again into the straight air baffle, the curved part preferably having a radius between 80 mm and 110 mm, preferably 95 mm. The arch part can also consist of a sheet whose cross section forms a polygon. The distances from the sheet to the fan roller are decisive for the outflow pressure.
Nach einer besonderen Ausgestaltung der Erfindung ist das Gehäuse als Säule ausgebildet, aus der der Luftstrom horizontal ausgeblasen wird.According to a special embodiment of the invention, the housing is designed as a column from which the air flow is blown out horizontally.
Vorzugsweise ist das Gehäuse modulartig aufgebaut und besteht aus einem den Motorantrieb für die Gebläseeinrichtung aufweisenden Modulteil und mindestens einem weiteren Modulteil mit einer Gebläseeinrichtung und einem Düsenkörper. Gegebenenfalls bei sehr hohen Türen oder Toren wird ein einziger Motorantrieb zum Antrieb mehrerer Lüfterwalzen in über- oder (bei waagerechter Anordnung) nebeneinander angeordneten Modulen verwendet.The housing is preferably constructed in a modular manner and consists of a module part having the motor drive for the blower device and at least one further module part with a blower device and a nozzle body. If necessary, with very high doors or gates, a single motor drive is used to drive several fan rollers in modules arranged one above the other (or in the case of a horizontal arrangement).
Weitere Details der Erfindung werden im Folgenden anhand der Zeichnungen beschrieben. Es zeigen:
- Fig. 1
- eine perspektivische Ansicht eines Säulenendmoduls mit Bodenplatte,
- Fig. 2, 3
- jeweils Draufsichten auf die Luftschleieranlage nach
Fig. 1 von unten und von oben in einer Teilschnittdarstellung, - Fig. 4
- eine perspektivische Darstellung des Düsenkörpers in einer Explosionsdarstellung,
- Fig. 5
- eine Draufsicht auf die Düse und
- Fig. 6, 7, 8
- jeweils Seitenansichten der Düse,
- Fig. 9
- eine perspektivische Ansicht des Abreißerbleches,
- Fig. 10
- eine Draufsicht auf das Abreißerblech,
- Fig. 11, 12
- jeweils Seitenansichten des Abreißerbleches,
- Fig. 13
- eine perspektivische Ansicht des Bogenbleches,
- Fig. 14
- eine Draufsicht auf das Bogenblech,
- Fig. 15
- eine Seitenansicht des Bogenbleches,
- Fig. 16, 17 und 18
- jeweils verschiedene Ansichten des Luftleitbleches und
- Fig. 19
- eine Ansicht einer Luftschleieranlage.
- Fig. 1
- a perspective view of a column end module with base plate,
- 2, 3
- top views of the air curtain system
Fig. 1 from below and from above in a partial sectional view, - Fig. 4
- 2 shows a perspective view of the nozzle body in an exploded view,
- Fig. 5
- a top view of the nozzle and
- 6, 7, 8
- side views of the nozzle,
- Fig. 9
- a perspective view of the tear-off plate,
- Fig. 10
- a top view of the tear-off plate,
- 11, 12
- side views of the tear-off plate,
- Fig. 13
- a perspective view of the sheet metal,
- Fig. 14
- a plan view of the sheet metal,
- Fig. 15
- a side view of the sheet,
- 16, 17 and 18
- different views of the air baffle and
- Fig. 19
- a view of an air curtain system.
In
Zur optimalen Luftabschirmung bei möglichst geringem Energieeinsatz muss neben dem Volumenstrom und der Geschwindigkeit insbesondere der Ausblaswinkel so gesteuert werden, dass eine durch den ausgeblasenen Luftstrom gebildete Kraft entsteht, die das Eindringen von Außenluft in das Gebäudeinnere wirksam verhindert. Eine wesentliche Funktion kommt dabei der Konstruktion der Düse 24 zu, die in einer Explosionsdarstellung mit den verwendeten Bauteilen
Die Breite der Rundbleche ist so abgestimmt, dass der Düseninnenraum bei jeder möglichen und notwendigen Schwenkstellung gegen das Eindringen von Außenluft an den Seiten abgeschirmt ist. Mit anderen Worten, die Rundbleche 31 und 32 werden insbesondere an der Kante des Abreißerbleches 25 und der Endkante des Luftleitbleches 26 stets zum Innenraum hin abgedichtet.The width of the round plates is adjusted so that the interior of the nozzle is shielded against the ingress of outside air at every possible and necessary swivel position. In other words, the
Die unterschiedlich langen Rundbleche 31 und 32 haben zudem den Vorteil, dass die Rundbleche sowohl bei linksstehenden als auch bei rechtsstehenden Säulen verwendbar sind.The
Die Rundbleche werden an den oberen und unteren Enden durch jeweilige Deckelbleche 33, 34 gehalten, die ein am Düsenaustritt liegendes gerades Kantenstück 35 und auf der gegenüberliegenden Seite ein abgewinkeltes Kantenstück 36 besitzen, die vorzugsweise einen stumpfen Winkel von 190° bis 220° einschließen.The round sheets are held at the upper and lower ends by
Zwischen den Rundblechen 31 und 32 sind noch flache ebene Ableitbleche 37 und 38 vorgesehen, die bis auf einen geringfügigen Versatz 39 von maximal 5 mm jeweils von den Rändern der Einlassöffnung zu der Auslassöffnung angeordnet sind. Zur Leitung des Luftstroms sind zudem Lamellen 40 vorgesehen, die zueinander parallel und aus Blechstreifen bestehend in dem Deckelblech 33, 34 befestigt sind. Zusätzlich sind noch Zwischenbleche 41 vorgesehen, um ein Durchbiegen oder Flattern der Lamellen 40 zu verhindern. Aus optischen Gründen sind jeweils ober- bzw. unterhalb der Deckelbleche 33, 34 noch Abschlussbleche 42 vorgesehen.Between the
Um in dem Gehäuseinneren eine möglichst laminare Luftströmung zu gewährleisten und zu verhindern, dass an den Schaufelblechen der Lüfterwalze 29 unerwünschte Schwingungen entstehen, ist zwischen der Düse 24 und der Lüfterwalze 29 ein Abreißerblech 25 vorgesehen, dass aus einem bogenförmigen Profilteil 251 und einem geradlinigen Teil 252 besteht. Das Bogenteil besitzt in einem konkreten Ausführungsbeispiel einen Radius von ca. 50 mm und das geradlinige Profilstück 252 eine Breite von ca. 8 mm. Die Abwinklung ist so gestaltet, dass der eingeschlossene Winkel α etwa 145° beträgt. Der Winkel zwischen der die Endpunkte des Bogenteils 251 überbrückenden Sekante und dem geradlinigen Profilstück 252 beträgt 80°. Auf der gegenüberliegenden Seite ist zur Führung des über die Ansaugöffnung einströmenden Luftstroms ein Bogenblech 27 vorgesehen, das sich von der Gehäusewand 211 zunächst - im Querschnitt betrachtet - über ein geradliniges Stück 271 mit einer Breite von ca. 90 mm über ein Bogenteil 272 mit einem Radius zwischen 90 mm und 100 mm erstreckt und in ein gerades Stück, das Luftleitblech 26, einer Breite von ca. 75 mm übergeht, das bis zu der Düse 24 bzw. der Düsenkante 241 (siehe
Die Einstellung der Winkel, unter denen die Luft ausströmen kann, wird durch Drehung der Düse 24 bewirkt, wobei idealerweise rechts und links der Türöffnung jeweils Säulen angeordnet sind, die einen unter einem Winkel nach außen gerichteten Luftstrom in Form eines Luftschleiers erzeugen.The setting of the angles at which the air can flow out is effected by rotating the
Aus optischen Gründen kann das Säulenmodul 21 auch mit einer äußeren Verkleidung versehen werden.For optical reasons, the
- 2020th
- Sockelbase
- 2121
- SäulenmodulColumn module
- 211211
- GehäusewandHousing wall
- 2222
- EckprofilCorner profile
- 2323
- AbdeckplatteCover plate
- 2424th
- DüsenkörperNozzle body
- 241241
- DüsenkanteNozzle edge
- 2525th
- AbreißerblechTear-off plate
- 251251
- bogenförmiges Profilteilcurved profile part
- 252252
- geradliniges Teilstraight part
- 2626
- LuftleitblechAir baffle
- 2727
- BogenblechCurved sheet
- 271271
- geradliniges Stückstraight piece
- 272272
- BogenteilArch part
- 2828
- Pfeil, LufteintrittsöffnungArrow, air inlet opening
- 2929
- LüfterwalzeFan roller
- 3030th
- Pfeil, LuftaustrittsöffnungArrow, air outlet opening
- 31, 3231, 32
- zylindersegmentförmige Rundblechecylindrical segment-shaped round sheets
- 33, 3433, 34
- DeckelblecheCover plates
- 3535
- KantenstückEdge piece
- 3636
- abgewinkeltes Kantenstückangled edge piece
- 37, 3837, 38
- AbleitblecheDeflectors
- 3939
- VersatzOffset
- 4040
- LamellenSlats
- 4141
- ZwischenblecheIntermediate plates
- 4242
- AbschlussblecheEnd plates
- 4343
- geschlossener Raumclosed room
- 44, 45, 4644, 45, 46
- ModuleModules
- αα
- Winkelangle
Claims (13)
- Air curtain system for generating an air flow for shielding rooms provided with doors or gates, with a housing which has an air inlet opening (28), a blower device, at least one air guide plate (25, 26, 27) and an air outlet opening (30) in a nozzle body (24) having two cylinder segmental round plates (31, 32) arranged pivotable around its longitudinal axis, the nozzle body having an inlet- and an outlet opening, wherein in all possible angle adjustments of the nozzle body (24) its interior is shielded from the exterior outside the housing to prevent unwanted backflows of the air into the housing on the nozzle- and air outlet-side,
characterized in that
the nozzle body (24) has cover plates (33, 34) at each end side with edge pieces having the same curvature as the cylinder segmental round plates (31, 32) and that in the cover plates (33, 34) lamellas (40) are mounted which are arranged parallel one to the other and which consist of sheet metal profiles and which extend over the entire air outlet opening (30). - Air curtain system according to claim 1, characterized in that the cylinder segmental round plates (31, 32) have a different wide, preferably a wide covering part circle angles of 80° to 120° (of the broad cylinder segmental round plate) and/or 70° to 110° (of the small cylinder segmental round plate).
- Air curtain system according to claim 1 or 2, characterized in that every cover plate (33, 34) has beside the both part circle shaped edge pieces a linear edge piece (35) and - on the opposite side an angled edge piece (36), preferably under an obtuse angle of 190° to 220°, further preferably of 200°.
- Air curtain system according to one of the claims 1 to 3, characterized in that the lamellas (40) are supported additionally by intermediate plates (41) which are arranged parallel to the cover plates (33, 34).
- Air curtain system according to one of the claims 1 to 4, characterized in that the flat, plane deflector plates (37, 38) are provided in the nozzle body (24) which apart from a slightly offset (39) of maximum 5 mm extend on each side from the edge of the inlet opening to the edge of the outlet opening within the nozzle body and which extend over the entire length of the nozzle body.
- Air curtain system according to one of the claims 1 to 5, characterized in that a room for the guiding of the air stream is provided between the blower device and the nozzle body and being completely limited by air guide plates (25, 26, 27).
- Air curtain system according to claim 6, characterized in that the air guide plates (25, 26, 27) consist of- a tear-off plate (25) being arranged between the nozzle body (24) and the blower device and- an arched sheet plate (27) that forms the rear distance from the housing wall to the blower device and the lateral area of the air guide channel and that leads in a linear, plane air guide plate (26) extending to the nozzle body.
- Air curtain system according to claim 7, characterized in that the tear-off plate (25) has a curved profile part (251) that changes to a linear profile part (252) extending in the direction of the blower device.
- Air curtain system according to claim 8, characterized in that the linear profile part (252) has a cross-section width of 8 mm to 10 mm and/or is arranged to the secant of the curved profile part (251) at an angle (α) between 75° and 85°, preferably 80°.
- Air curtain system according to one of the claims 7 to 9, characterized in that the arched sheet plate (27) seen in a cross sectional view changes from a linear profile part (271) to an arched part (272) and then to linear air guide plate (26), wherein the arched part (272) has preferably a radius between 80 mm and 110 mm, preferably 95 mm.
- Air curtain system according to one of the claims 1 to 10, characterized in that the housing is designed as a column (21, 44, 45, 46), from which the air stream is blown out horizontally.
- Air curtain system according to one of the claims 1 to 11, characterized in that the housing is built modularly and has a module comprising a motor drive for the blower device and at least a further module (21, 44, 45) each consisting of a blower device and a nozzle body (24).
- Air curtain system according to claim 12, characterized in that a sole motor drive drives several fan rollers (29) in modules (21, 44, 45) being arranged above or adjacent to each other.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE202015106193.5U DE202015106193U1 (en) | 2015-11-16 | 2015-11-16 | Air curtain system |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3168545A1 EP3168545A1 (en) | 2017-05-17 |
EP3168545B1 true EP3168545B1 (en) | 2020-03-18 |
Family
ID=54840287
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16197462.1A Active EP3168545B1 (en) | 2015-11-16 | 2016-11-07 | Air curtain system |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP3168545B1 (en) |
DE (1) | DE202015106193U1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH715247A1 (en) * | 2018-08-14 | 2020-02-14 | Jomos Brandschutz Ag | Pressure shielding system for maintaining the pressure difference at an opening of a building between two areas with different pressure. |
DE102021122653B3 (en) | 2021-09-01 | 2022-12-15 | MKT Modulare-Klima-Trennung Martin Blau e.K. | Air conditioning device for generating an air flow aligned parallel to a wall opening and flowing within the wall opening |
DE202021104703U1 (en) | 2021-09-01 | 2022-12-02 | MKT Modulare-Klima-Trennung Martin Blau e.K. | Air conditioning device for generating an air flow aligned parallel to a wall opening and flowing within the wall opening |
KR102577746B1 (en) * | 2021-09-10 | 2023-09-12 | (주)대영프로파일 | Air curtain apparatus and air curtain system having the same |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DK0554481T3 (en) | 1992-02-05 | 1995-07-24 | Luftschleieranlagen Gmbh | Installations for generating an air veil |
DE9407112U1 (en) * | 1994-04-29 | 1994-09-01 | Teddington Controls Gmbh | Compact air curtain system |
DE29617626U1 (en) | 1996-10-10 | 1997-01-02 | Mueller Erwin Gmbh & Co | Air curtain system |
DE202008011500U1 (en) | 2008-08-28 | 2008-10-23 | Teddington Luftschleieranlagen Gmbh | Air curtain system |
DE102008042803C5 (en) | 2008-10-13 | 2018-01-11 | LGB Lufttechnische Anlagen und Gerätebau GmbH | Device for guiding an airflow |
ITVI20110053A1 (en) * | 2011-03-15 | 2012-09-16 | Bertoldo F Lli S N C | AUTOMATIC SIDE SLIDING DOOR |
-
2015
- 2015-11-16 DE DE202015106193.5U patent/DE202015106193U1/en not_active Expired - Lifetime
-
2016
- 2016-11-07 EP EP16197462.1A patent/EP3168545B1/en active Active
Non-Patent Citations (1)
Title |
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None * |
Also Published As
Publication number | Publication date |
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EP3168545A1 (en) | 2017-05-17 |
DE202015106193U1 (en) | 2015-11-23 |
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