EP0311934B1 - Air exit for ventilation and air-conditioning purposes - Google Patents

Air exit for ventilation and air-conditioning purposes Download PDF

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Publication number
EP0311934B1
EP0311934B1 EP88116721A EP88116721A EP0311934B1 EP 0311934 B1 EP0311934 B1 EP 0311934B1 EP 88116721 A EP88116721 A EP 88116721A EP 88116721 A EP88116721 A EP 88116721A EP 0311934 B1 EP0311934 B1 EP 0311934B1
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EP
European Patent Office
Prior art keywords
air
outlet
chamber
source
discharge chamber
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
EP88116721A
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German (de)
French (fr)
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EP0311934A2 (en
EP0311934A3 (en
Inventor
Klaus Dr. Fitzner
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Heinrich Nickel GmbH
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Heinrich Nickel GmbH
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Application filed by Heinrich Nickel GmbH filed Critical Heinrich Nickel GmbH
Priority to AT88116721T priority Critical patent/ATE89912T1/en
Publication of EP0311934A2 publication Critical patent/EP0311934A2/en
Publication of EP0311934A3 publication Critical patent/EP0311934A3/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/02Ducting arrangements
    • F24F13/06Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser

Definitions

  • the invention relates to a source air outlet for ventilation and air conditioning purposes, which is connected via a distribution box to an air supply line.
  • Such source air outlets are required wherever it is important to have air conditioning systems work according to the so-called displacement principle, i.e. with source flow.
  • the air in the floor area is introduced into the room and extracted again from the ceiling.
  • the aim of the invention is to provide a displacement air outlet of the type initially specified, with the aid of which a large-area and nevertheless uniform air supply can be ensured in the room to be air-conditioned in a simple manner.
  • the source air outlet has a design which - according to claim 3 - is characterized in that the two chambers narrow in the direction of the normal plane to their corresponding outlet and inlet openings approximately wedge-shaped or curved and a so-called pointed channel form.
  • the inflow chamber has a rectangular circumferential limit parallel to the plane of its outlet opening and the outflow chamber parallel to the plane of its inlet opening.
  • inflow chamber has a trapezoidal circumferential boundary parallel to the plane of its outlet opening and the outflow chamber parallel to the plane of its inlet opening.
  • a source air outlet 1 is shown as it can be used for the ventilation and / or air conditioning of rooms. For this purpose, it is connected to an air supply line 2.
  • the source air outlet 1 has a distribution box 3 for the air, which consists of two chambers connected in series in the flow direction, namely the inflow chamber 4 and the outflow chamber 5.
  • the inflow chamber 4 is connected to the air supply line 2, while the outflow chamber 5 is connected to the room to be ventilated and / or air-conditioned.
  • Inflow chamber 4 and outflow chamber 5 can be flowed through at predetermined angles to one another, for example at an angle of 90 °, as is indicated by arrows 6 and 7 in FIG. 1.
  • the inflow chamber 4 has a cross section gradually narrowing in the inflow direction of the air indicated by the arrow 6, as can be clearly seen in FIG. 1 of the drawing.
  • the outflow chamber 5 also has a cross section which gradually narrows in the main flow direction of the air indicated by the arrow 7, as can readily be seen from FIG. 2.
  • Inflow chamber 4 and outflow chamber 5 of the distribution box 3 are placed directly next to one another, in such a way that the outlet opening 8 formed in a long side of the inflow chamber 4 is in constant communication with the inlet opening 9 also formed on a long side of the outflow chamber 5.
  • the outlet opening 8 of the inflow chamber 4 and the inlet opening 9 of the outflow chamber 5 preferably extend at least approximately over the entire length and width of their mutually facing or interconnected longitudinal sides.
  • a perforated plate 10 can advantageously be installed to support uniform air distribution.
  • a honeycomb grid or a mesh fabric can also be used for the same purpose.
  • both the inflow chamber 4 and the outflow chamber 5 narrow approximately in a wedge shape in the direction of the normal plane to the outlet opening 8 or to the inlet opening 9, as is the case, for example, for the inflow chamber 4 from FIG. 1 and for the Outflow chamber 5 from FIG. 2 of the drawing is clearly visible.
  • inflow chamber 4 expediently has a rectangular circumferential limitation parallel to the plane of its outlet opening 8 and the outflow chamber 5 parallel to the plane of its inlet opening 9.
  • the inflow chamber 4 is parallel to the plane of its outlet opening 8 and the outflow chamber 5 is parallel to the Level of their inlet opening 9 each has a continuously narrowing, for example trapezoidal, circumferential boundary, as is indicated in FIG. 5 of the drawing.
  • both the inlet chamber 4 (FIG. 1) and the outlet chamber 5 (FIG. 2) have a wedge-shaped cross section, in which the cross-section is at an acute angle to the direction of the Arrows 6 and 7 inclined wall 11 or 12 is formed flat
  • a rectifier or laminarizer 14 is assigned to the outlet opening 13, which is located in the wall of the outlet chamber 5 opposite the wall 12. This can consist of lamellae and / or a honeycomb grid, but possibly also of a mesh fabric. If this rectifier or laminarizer 14 consists of fins, these fins can possibly also be the fins of a heat exchanger.
  • the inflow chamber 4 and the outflow chamber 5 of the distribution box 3 are arranged with respect to one another in such a way that the direction of flow of the air is mainly deflected at right angles, as can be seen from the arrows 6 and 7.
  • the two chambers 4 and 5 of the distribution box 3 it is also conceivable for the two chambers 4 and 5 of the distribution box 3 to be designed so that the deflection of the air flow does not take place at right angles, but at a larger or smaller angle.
  • a displacement air outlet 1 of the type described above is that a very uniform and draft-free supply of air into a room to be ventilated and / or air-conditioned can be achieved if the air supply is only at a low flow rate, for example 0.15 up to 0.20 m / s.
  • FIGS. 6 to 13 Further design variants for displacement air outlets 1 according to the invention are shown in FIGS. 6 to 13.
  • two source air outlets 1 of the type shown in FIG. 2 are accommodated in a common housing in such a way that their outlet openings 13 with the rectifiers or laminarizers 14 connected thereto lie on the sides of the housing facing away from one another.
  • the area which widens upwards in a wedge shape between the two inclined walls 12 can be designed as a silencer, that is to say, for example, can accommodate a silencer backdrop with a triangular cross section, as is indicated in FIG. 6.
  • FIG. 7 It can be seen from FIG. 7 that, if necessary, there is also the possibility of combining four source air outlets of the basic design shown in FIG. 2 in a common housing.
  • Such a configuration is particularly useful when the air supply line 2 in the vertical direction, in particular from below, to the inflow chamber 4 of the distribution box 3.
  • heat exchanger tubes assigned to the source air outlets 1 can then run horizontally, for example in the area of the rectifiers or laminarizers 14, and can be used as coolers or heaters.
  • the embodiment according to FIG. 8 differs from that according to FIG. 2 in that the wall 12 or 11 itself does not have an inclined position on the outflow chamber 5 or also on the inflow chamber 4. Rather, the wall in question, for example the wall 12, itself runs approximately parallel to the plane of the outlet opening 13 or the rectifier or laminarizer 14. However, on the wall 12, plane laminate bodies 12a, for example metal sheets, are oriented normal to their plane. attached. These laminated bodies 12a are arranged at parallel distances from one another and each have a different length, such that their free longitudinal edges reach a common plane which is inclined at an acute angle to the plane of the outlet opening 13 or the rectifier or laminarizer 14. The mode of operation resulting from this is the same as if the wall 12 itself would have the inclination position corresponding to FIG. 2.
  • the laminated bodies 12a form baffles with one another and with the wall 12 carrying them, by means of which a larger number of cavities of different depths are delimited from one another. These cavities can act as silencers in the manner of Helmholz resonators.
  • FIG. 8 equivalent design for a displacement air outlet of the type shown in Fig. 4 is created by the configuration as shown in Fig. 9 of the drawing.
  • the laminated body 12a of different widths takes the place of the curved wall 12 according to FIG. 4, these being fastened to the flat wall 12 in such a way that their free longitudinal edges lie on a curve which corresponds to the course of curvature as shown in FIG Fig. 4 is shown for the wall 12.
  • the rectifier or laminarizer 14 is used in order to give the outflow chamber 5 the configuration which narrows approximately wedge-shaped in the flow direction of the air.
  • the rectifier or laminarizer lamellae 14a here have different widths and are arranged so that their free longitudinal edges reach a plane or a curve which limits the narrowing contour of the outflow chamber 5.
  • a rotationally symmetrical design for a displacement air outlet 1 can be seen in FIG. 11 of the drawing. Eggs are used instead of an inclined, flat wall 12, an inner cone 12b, which is opposite to the cylindrical-ring-shaped Rectifier or laminarizer 14 defines an annular outflow chamber 5, the annular space of which narrows in a wedge shape in the flow direction of the air.
  • FIG. 11 The design according to FIG. 11 is, as it were, a rotationally symmetrical variant of the exemplary embodiment according to FIG. 6.
  • FIGS. 8 to 10 The construction principles of the displacement air outlets shown in FIGS. 8 to 10 can also be used without difficulty for rotationally symmetrical designs of displacement air outlets, as is shown in FIGS. 12 and 13.
  • a cone insert 12c is used, which is made up of laminated body disks that have different diameters and are each held in parallel position at certain distances from one another. The free peripheral edges of these laminated discs reach a line which is at least similar to a conical surface.
  • the insert body 12c can have a muffler effect.
  • the exemplary embodiment according to FIG. 13 is derived from the design of a displacement air outlet 1 according to FIG. 10. It differs from this basically only in that it is designed to be rotationally symmetrical and the rectifier or laminarizer lamellae 14b consist of rings, the inner ring boundary edges of which approach a line that is similar to a cone jacket.
  • the displacement air outlets 1 according to FIGS. 11 to 13 do not necessarily have to have a rotationally symmetrical shape. Rather, they can also have a polygon cross section, with their internals 12b, 12c and 14b being contoured in accordance with this polygon cross section.
  • the air supply lines 2 do not necessarily have to have a round cross-sectional shape, but rather can also have a rectangular or square outline shape.

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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)

Abstract

An air exit 1 for ventilation and air-conditioning purposes is proposed, which is connected via a distribution box 3 to an air supply line 2. In order that a very even air outlet is guaranteed across the entire cross-section of the outlet opening, the distribution box 3 consists of two chambers 4 and 5 which are connected one after another in the air flow direction 6, 7 and which can be flowed through at predetermined angles, preferably less than 90 DEG , to one another. In this connection, it is important that each of the chambers 4 and 5 has a cross-section which narrows gradually in the inflow direction of the air towards its outlet opening 8 or 13. <IMAGE>

Description

Die Erfindung betrifft einen Quelluftauslaß für Lüftungs- und und Klimatisierungszwecke, welcher über einen Verteilkasten an eine Luftzuführleitung angeschlossen ist.The invention relates to a source air outlet for ventilation and air conditioning purposes, which is connected via a distribution box to an air supply line.

Derartige Quelluftauslässe werden überall dort benötigt, wo es darauf ankommt, Klimaanlagen nach dem sogenannten Verdrängungsprinzip, also mit Quellströmung, arbeiten zu lassen. Hierbei wird die Luft im Bodenbereich in den Raum eingeführt und an der Raumdecke wieder abgesaugt.Such source air outlets are required wherever it is important to have air conditioning systems work according to the so-called displacement principle, i.e. with source flow. The air in the floor area is introduced into the room and extracted again from the ceiling.

Um mit erträglichem technischem Aufwand eine ausreichende Klimatisierung, und zwar insbesondere Kühlung, von Räumen zu erhalten, ohne daß dabei lästige Zugerscheinungen auftreten, die sich bspw. im Kopfbereich besonders unangenehm bemerkbar machen, ist es wichtig, daß die zur Klimatisierung dienende - kühle - Luft zunächst flächig und gleichmäßig über die gesamte Bodenfläche verteilt wird, bevor sie dann in einer Quellströmung nach oben steigt. Wenn es sich bei der Klimatisierungsluft um Kühlluft handelt, wird der Quellströmungs-Effekt weiter begünstigt, weil die Kühlluft wegen ihres relativ hohen spezifischen Gewichtes nur verhältnismäßig langsam nach oben steigen kann. Die Luftgeschwindigkeit im Bereich der Quellströmung ist dabei extrem niedrig und kann deshalb keinerlei unangenehme Zugerscheinungen verursachen. Zugleich stellt sie jedoch sicher, daß die im Raum befindlichen Personen optimal mit Frischluft versorgt sowie Schadstoffe und Wärmelasten dieser Personen schneller zur Fortluftöffnung geleitet werden.In order to obtain adequate air conditioning, and in particular cooling, of rooms with tolerable technical effort, without the occurrence of annoying drafts which, for example, are particularly unpleasant in the head area, it is important that the - cool - air used for air conditioning is first spread over a large area and evenly over the entire floor area, before it rises in a source flow. If the air conditioning air is cooling air, the source flow effect is further favored because the cooling air can only rise relatively slowly due to its relatively high specific weight. The air speed in the The area of the source flow is extremely low and therefore cannot cause any unpleasant drafts. At the same time, however, it ensures that the people in the room are optimally supplied with fresh air and that pollutants and heat loads of these people are directed to the exhaust air opening more quickly.

Durch die US-A-3 598 153 ist bereits ein Quelluftauslaß bekannt, bei dem der Verteilkasten quaderförmige Gestalt aufweist. Zwischen dem Lufteintritt und dem rechtwinklig dazu angeordneten Luftaustritt mit schlitzförmigen Öffnungen befindet sich eine geneigt verlaufende Strömungsleitschaufel. Diese ist mit einem Ausschnitt versehen, der lufteintrittsseitig seine größte Breite hat, die in Strömungsrichtung der eintretenden Luft stetig abnimmt. Am Lufteintritt hat die Strömungsleitschaufel ihren größten Abstand zum Verteilkammerboden. Ihr anderes Ende liegt auf dem Verteilkammerboden auf. Die Strömungsleitschaufel bewirkt über ihre Länge eine unterschiedliche Drosselung des Luftstromes und damit einen Geschwindigkeitsausgleich.From US-A-3 598 153 a source air outlet is already known in which the distribution box has a cuboid shape. There is an inclined flow guide vane between the air inlet and the air outlet with slot-shaped openings arranged at right angles to it. This is provided with a cutout that has its greatest width on the air inlet side, which decreases steadily in the direction of flow of the incoming air. At the air inlet, the flow guide vane is at its greatest distance from the floor of the distribution chamber. The other end rests on the distributor chamber floor. The flow guide vane causes a different throttling of the air flow over its length and thus a speed compensation.

Ziel der Erfindung ist es, einen Quelluftauslaß der anfangs angegebenen Art zu schaffen, mit dessen Hilfe auf einfache Art und Weise eine großflächige und trotzdem gleichmäßige Luftzufuhr in dem zu klimatisierenden Raum gewährleistet werden kann.The aim of the invention is to provide a displacement air outlet of the type initially specified, with the aid of which a large-area and nevertheless uniform air supply can be ensured in the room to be air-conditioned in a simple manner.

Gelöst wird diese Aufgabe erfindungsgemäß mit dem Merkmalen des Anspruchs 1.This object is achieved according to the invention with the features of claim 1.

An der Austrittsöffnung jeder der beiden Kammern stellt sich bei allen Geschwindigkeiten ein optimal gleichmäßiger Luftaustritt über die gesamte Austrittsfläche ein, was für den Aufbau einer Verdrängungsströmung im Raum äußerst günstige Auswirkungen hat.At the outlet opening of each of the two chambers there is an optimally uniform air outlet over the entire outlet surface at all speeds, which has extremely favorable effects for the establishment of a displacement flow in the room.

Erfindungsgemäß hat es sich - nach Anspruch 2 - ferner bewährt, wenn im Verbindungsbereich zwischen Einströmkammer und Ausströmkammer des Verteilkastens ein Lochblech, ein Wabengitter oder ein Netzgewebe eingebaut ist, weil hierdurch eine weitere Vergleichmäßigung der Strömung herbeigeführt werden kann.According to the invention, it has also proven itself - according to claim 2 - if a perforated plate, a honeycomb grid or a mesh fabric is installed in the connection area between the inflow chamber and outflow chamber of the distribution box, because this can bring about a further equalization of the flow.

Im einfachsten Falle weist nach der Erfindung der Quelluftauslaß eine Gestaltung auf, die sich - nach Anspruch 3 -dadurch auszeichnet, daß die beiden Kammern sich jeweils in Richtung der Normalebene zu ihren miteinander korrespondierenden Austritts- und Eintrittsöffnungen etwa keilförmig oder kurvenförmig verengen und einen sogenannten Spitzkanal bilden. Darüber hinaus ist es hierbei -gemäß Anspruch 4 - besonders empfehlenswert, wenn die Einströmkammer parallel zur Ebene ihrer Austrittsöffnung und die Ausströmkammer parallel zur Ebene ihrer Einstrittsöffnung eine rechtwinklige Umfangsbegrenzung aufweist.In the simplest case, according to the invention, the source air outlet has a design which - according to claim 3 - is characterized in that the two chambers narrow in the direction of the normal plane to their corresponding outlet and inlet openings approximately wedge-shaped or curved and a so-called pointed channel form. Furthermore, according to claim 4, it is particularly recommended if the inflow chamber has a rectangular circumferential limit parallel to the plane of its outlet opening and the outflow chamber parallel to the plane of its inlet opening.

Es liegt jedoch - nach Anspruch 5 - auch eine Ausgestaltung im Rahmen der Erfindung, bei welcher die Einströmkammer parallel zur Ebene ihrer Austrittsöffnung und die Ausströmkammer parallel zur Ebene ihrer Eintrittsöffnung eine trapezförmige Umfangsbegrenzung aufweist.However, according to claim 5, there is also an embodiment within the scope of the invention in which the inflow chamber has a trapezoidal circumferential boundary parallel to the plane of its outlet opening and the outflow chamber parallel to the plane of its inlet opening.

Schließlich liegt ein erfindungsgemäßes Ausgestaltungsmerkmal - gemäß Anspruch 6 - aber auch noch darin, daß der Austrittsöffnung der Ausströmkammer ein Gleichrichter bzw. Laminarisator zugeordnet ist, der bspw. aus Lamellen und/oder einem Wabengitter bzw. einem Netzgewebe besteht.
In der Zeichnung sind Ausführungsbeispiele des Gegenstandes der Erfindung dargestellt. Es zeigen

Figur 1
in schematisch vereinfachter Rückansicht einen Quelluftauslaß für Lüftungs- und Klimatisierungszwecke,
Figur 2
den Quelluftauslaß nach Fig. 1 in Pfeilrichtung II gesehen,
Figur 3
den Quelluftauslaß nach den Fig. 1 und 2 in der Draufsicht,
Figur 4
eine der Fig. 2 entsprechende Darstellung, jedoch in baulich etwas abgewandelter Ausgestaltung des Quelluftauslasses,
Figur 5
eine der Fig. 3 entsprechende Darstellung, jedoch ebenfalls in einer baulich etwas abgewandelten Ausgestaltung sowie die
Fig. 6 bis 13
weitere Ausführungsvarianten für Quelluftauslässe.
Finally, an inventive design feature - according to claim 6 - also lies in the fact that the outlet opening of the outflow chamber is assigned a rectifier or laminarizer which, for example, consists of lamellae and / or a honeycomb grid or a mesh fabric.
Exemplary embodiments of the subject matter of the invention are shown in the drawing. Show it
Figure 1
a schematically simplified rear view of a source air outlet for ventilation and air conditioning purposes,
Figure 2
1 seen in the direction of arrow II,
Figure 3
1 and 2 in plan view,
Figure 4
2 shows a representation corresponding to FIG. 2, but in a structurally somewhat modified configuration of the source air outlet,
Figure 5
a representation corresponding to FIG. 3, but also in a structurally somewhat modified configuration and the
6 to 13
further versions for displacement air diffusers.

In den Fig. 1 bis 3 der Zeichnung ist ein Quelluftauslaß 1 dargestellt, wie er für die Lüftung und/oder Klimatisierung von Räumen benutzt werden kann. Zu diesem Zweck steht er mit einer Luft-Zuführleitung 2 in Verbindung.1 to 3 of the drawing, a source air outlet 1 is shown as it can be used for the ventilation and / or air conditioning of rooms. For this purpose, it is connected to an air supply line 2.

Der Quelluftauslaß 1 weist einen Verteilkasten 3 für die Luft auf, der aus zwei in Strömungsrichtung hintereinandergeschalteten Kammern , nämlich der Einströmkammer 4 und der Ausströmkammer 5 besteht. Die Einströmkammer 4 ist dabei an die Luft-Zuführleitung 2 angeschlossen, während die Ausströmkammer 5 mit dem zu lüftenden und/oder klimatisierenden Raum in Verbindung steht.The source air outlet 1 has a distribution box 3 for the air, which consists of two chambers connected in series in the flow direction, namely the inflow chamber 4 and the outflow chamber 5. The inflow chamber 4 is connected to the air supply line 2, while the outflow chamber 5 is connected to the room to be ventilated and / or air-conditioned.

Einströmkammer 4 und Ausströmkammer 5 sind unter vorbestimmten Winkeln zueinander durchströmbar, bspw. unter einem Winkel von 90°, wie das bspw. in Fig. 1 durch die Pfeile 6 und 7 angedeutet ist.Inflow chamber 4 and outflow chamber 5 can be flowed through at predetermined angles to one another, for example at an angle of 90 °, as is indicated by arrows 6 and 7 in FIG. 1.

Die Einströmkammer 4 weist einen sich in der durch den Pfeil 6 angedeuteten Einströmrichtung der Luft allmählich verengenden Querschnitt auf, wie das deutlich der Fig. 1 der Zeichnung entnommen werden kann. Auch die Ausströmkammer 5 hat einen sich in der durch den Pfeil 7 angedeuteten Hauptströmungseichtung der Luft allmählich verengenden Querschnitt, wie das ohne weiteres aus Fig. 2 erkennbar ist.The inflow chamber 4 has a cross section gradually narrowing in the inflow direction of the air indicated by the arrow 6, as can be clearly seen in FIG. 1 of the drawing. The outflow chamber 5 also has a cross section which gradually narrows in the main flow direction of the air indicated by the arrow 7, as can readily be seen from FIG. 2.

Einströmkammer 4 und Ausströmkammer 5 des Verteilkastens 3 sind unmittelbar aneinander gesetzt, und zwar in der Weise, daß die in einer Längsseite der Einströmkammer 4 ausgebildete Austrittsöffnung 8 unmittelbar mit der ebenfalls an einer Längsseite der Ausströmkammer 5 ausgebildeten Eintrittsöffnung 9 in ständiger Verbindung steht.Inflow chamber 4 and outflow chamber 5 of the distribution box 3 are placed directly next to one another, in such a way that the outlet opening 8 formed in a long side of the inflow chamber 4 is in constant communication with the inlet opening 9 also formed on a long side of the outflow chamber 5.

Die Austrittsöffnung 8 der Einströmkammer 4 und die Eintrittsöffnung 9 der Ausströmkammer 5 erstrecken sich vorzugsweise wenigstens annähernd über die ganze Länge und Breite ihrer einander zugewendeten bzw. miteinander in Verbindung stehenden Längsseiten.The outlet opening 8 of the inflow chamber 4 and the inlet opening 9 of the outflow chamber 5 preferably extend at least approximately over the entire length and width of their mutually facing or interconnected longitudinal sides.

Im Verbindungsbereich zwischen Einströmkammer 4 und Ausströmkammer 5 des Verteilkastens 3 bzw. zwischen der Austrittsöffnung 8 der Einströmkammer 4 und der Eintrittsöffnung 9 der Ausströmkammer 5 kann in vorteilhafter Weise zur Unterstützung einer gleichmäßigen Luftverteilung ein Lochblech 10 eingebaut werden. Zum gleichen Zweck kann jedoch auch ein Wabengitter oder ein Netzgewebe in Benutzung genommen werden.In the connection area between the inflow chamber 4 and the outflow chamber 5 of the distribution box 3 or between the outlet opening 8 of the inflow chamber 4 and the inlet opening 9 of the outflow chamber 5, a perforated plate 10 can advantageously be installed to support uniform air distribution. However, a honeycomb grid or a mesh fabric can also be used for the same purpose.

Als besonders wichtig hat sich erwiesen, daß sich sowohl die Einströmkammer 4 als auch die Ausströmkammer 5 jeweils in Richtung der Normalebene zur Austrittsöffnung 8 bzw. zur Eintrittsöffnung 9 etwa keilförmig verengen, wie das bspw. für die Einströmkammer 4 aus Fig. 1 und für die Ausströmkammer 5 aus Fig. 2 der Zeichnung deutlich ersichtlich ist.It has proven to be particularly important that both the inflow chamber 4 and the outflow chamber 5 narrow approximately in a wedge shape in the direction of the normal plane to the outlet opening 8 or to the inlet opening 9, as is the case, for example, for the inflow chamber 4 from FIG. 1 and for the Outflow chamber 5 from FIG. 2 of the drawing is clearly visible.

Der Fig. 3 kann darüber hinaus entnommen werden, daß zweckmäßigerweise die Einströmkammer 4 parallel zur Ebene ihrer Austrittsöffnung 8 und die Ausströmkammer 5 parallel zur Ebene ihrer Eintrittsöffnung 9 eine rechtwinklige Umfangsbegrenzung aufweist.3 also shows that the inflow chamber 4 expediently has a rectangular circumferential limitation parallel to the plane of its outlet opening 8 and the outflow chamber 5 parallel to the plane of its inlet opening 9.

In manchen Fällen kann es sich jedoch auch als vorteilhaft erweisen, wenn die Einströmkammer 4 parallel zur Ebene ihrer Austrittsöffnung 8 und die Ausströmkammer 5 parallel zur Ebene ihrer Eintrittsöffnung 9 jeweils eine sich stetig verengende, bspw. trapezförmig gestaltete Umfangsbegrenzung aufweist, wie dies in Fig. 5 der Zeichnung angedeutet ist.In some cases, however, it can also prove to be advantageous if the inflow chamber 4 is parallel to the plane of its outlet opening 8 and the outflow chamber 5 is parallel to the Level of their inlet opening 9 each has a continuously narrowing, for example trapezoidal, circumferential boundary, as is indicated in FIG. 5 of the drawing.

Während bei dem Verteilkasten 3 nach den Fig. 1 und 2 der Zeichnung sowohl die Eintrittskammer 4 (Fig. 1) als auch die Austrittskammer 5 (Fig. 2) einen sich keilförmig verengenden Querschnitt haben, in dem die unter einem spitzen Winkel zur Richtung der Pfeile 6 und 7 geneigte Wand 11 bzw. 12 eben ausgebildet wird, besteht ohne weiteres auch die Möglichkeit, die betreffende Wand 11 bzw. 12 kurvenförmig gekrümmt, bspw. entsprechend einer flachen Sinuskurve verlaufend auszubilden, wie das in Fig. 4 der Zeichnung bspw. für die Wand 12 der Ausströmkammer 5 gezeigt ist.While in the distribution box 3 according to FIGS. 1 and 2 of the drawing, both the inlet chamber 4 (FIG. 1) and the outlet chamber 5 (FIG. 2) have a wedge-shaped cross section, in which the cross-section is at an acute angle to the direction of the Arrows 6 and 7 inclined wall 11 or 12 is formed flat, there is also the possibility, without further ado, of making the wall 11 or 12 in question curved, for example in accordance with a flat sine curve, as shown in FIG. 4 of the drawing, for example. for the wall 12 of the outflow chamber 5 is shown.

Der Austrittsöffnung 13, welche sich in der der Wand 12 gegenüberliegenden Wand der Austrittskammer 5 befindet, wird in jedem Falle ein Gleichrichter bzw. Laminarisator 14 zugeordnet. Dieser kann dabei aus Lamellen und/oder einem Wabengitter, gegebenenfalls aber auch aus einem Netzgewebe bestehen. Wenn dieser Gleichrichter bzw. Laminarisator 14 aus Lamellen besteht, kann es sich bei diesen Lamellen gegebenenfalls auch um die Rippen eines Wärmetauschers handeln.In any case, a rectifier or laminarizer 14 is assigned to the outlet opening 13, which is located in the wall of the outlet chamber 5 opposite the wall 12. This can consist of lamellae and / or a honeycomb grid, but possibly also of a mesh fabric. If this rectifier or laminarizer 14 consists of fins, these fins can possibly also be the fins of a heat exchanger.

Bei den in der Zeichnung dargestellten Ausführungsbeispielen eines Quell-Luftauslasses 1 sind die Einströmkammer 4 und die Ausströmkammer 5 des Verteilkastens 3 so zueinander angeordnet, daß in ihnen die Strömungsrichtung der Luft hauptsächlich rechtwinklig abgelenkt wird, wie das die Pfeile 6 und 7 erkennen lassen. Selbstverständlich ist es aber auch denkbar, die beiden Kammern 4 und 5 des Verteilkastens 3 so zu gestalten, daß die Umlenkung der Luftströmung nicht rechtwinklig stattfindet, sondern unter einem größeren oder kleineren Winkel.In the embodiments of a source air outlet 1 shown in the drawing, the inflow chamber 4 and the outflow chamber 5 of the distribution box 3 are arranged with respect to one another in such a way that the direction of flow of the air is mainly deflected at right angles, as can be seen from the arrows 6 and 7. Of course, it is also conceivable for the two chambers 4 and 5 of the distribution box 3 to be designed so that the deflection of the air flow does not take place at right angles, but at a larger or smaller angle.

Der besondere Vorteil eines Quelluftauslasses 1 der vorstehend beschriebenen Bauart liegt darin, daß eine sehr gleichmäßige und zugfreie Zuführung von Luft in einen zu lüftenden und/oder klimatisierenden Raum erreicht werden kann, wenn die Luftzufuhr nur mit einer geringen Strömungsgeschwindigkeit, bspw. von 0,15 bis 0,20 m/s erfolgt.The particular advantage of a displacement air outlet 1 of the type described above is that a very uniform and draft-free supply of air into a room to be ventilated and / or air-conditioned can be achieved if the air supply is only at a low flow rate, for example 0.15 up to 0.20 m / s.

Weitere Ausführungsvarianten für Quelluftauslässe 1 nach der Erfindung sind in den Fig. 6 bis 13 dargestellt.Further design variants for displacement air outlets 1 according to the invention are shown in FIGS. 6 to 13.

Nach Fig. 6 sind zwei Quelluftauslässe 1 der in Fig. 2 gezeigten Art so in einem gemeinsamen Gehäuse untergebracht, daß ihre Austrittsöffnungen 13 mit den daran anschließenden Gleichrichtern bzw. Laminarisatoren 14 an den voneinander abgewendeten Gehäuseseiten liegen. Der sich nach oben keilförmig erweiternde Bereich zwischen den beiden geneigten Wänden 12 kann als Schalldämpfer ausgelegt werden, also bspw. eine Schalldämpfer-Kulisse von dreieckigem Querschnitt aufnehmen, wie das in Fig. 6 angedeutet ist.According to FIG. 6, two source air outlets 1 of the type shown in FIG. 2 are accommodated in a common housing in such a way that their outlet openings 13 with the rectifiers or laminarizers 14 connected thereto lie on the sides of the housing facing away from one another. The area which widens upwards in a wedge shape between the two inclined walls 12 can be designed as a silencer, that is to say, for example, can accommodate a silencer backdrop with a triangular cross section, as is indicated in FIG. 6.

Nach Fig. 6 ist also ein beidseitig ausblasendes Lüftungs- und Klimatisierungsgerät geschaffen.According to FIG. 6, a ventilation and air conditioning device which blows out on both sides is thus created.

Der Fig. 7 ist zu entnehmen, daß im Bedarfsfalle ohne weiteres auch die Möglichkeit besteht, vier Quelluftauslässe der aus Fig. 2 ersichtlichen Grund-Bauform in einem gemeinsamen Gehäuse zu vereinigen. Eine solche Ausgestaltung bietet sich insbesondere dann an, wenn die Luft-Zuführleitung 2 in Vertikalrichtung, insbesondere von unten, an die Einströmkammer 4 des Verteilkastens 3 herangeführt werden kann. In diesem Falle können dann den Quelluftauslässen 1 zugeordnete Wärmetauscherrohre horizontal verlaufend, bspw. im Bereich der Gleichrichter bzw. Laminarisatoren 14 vorgesehen sowie als Kühler oder Erhitzer benutzt werden.It can be seen from FIG. 7 that, if necessary, there is also the possibility of combining four source air outlets of the basic design shown in FIG. 2 in a common housing. Such a configuration is particularly useful when the air supply line 2 in the vertical direction, in particular from below, to the inflow chamber 4 of the distribution box 3. In this case, heat exchanger tubes assigned to the source air outlets 1 can then run horizontally, for example in the area of the rectifiers or laminarizers 14, and can be used as coolers or heaters.

In den Fig. 8 und 9 der Zeichnung sind Ausbildungsvarianten der Quelluftauslässe 1 nach den Fig. 2 und 4 zu sehen.8 and 9 of the drawing, training variants of the displacement air outlets 1 according to FIGS. 2 and 4 can be seen.

Das Ausführungsbeispiel nach Fig. 8 unterscheidet sich dabei von demjenigen nach Fig. 2 dadurch, daß an der Ausströmkammer 5 oder auch an der Einströmkammer 4 nicht die Wand 12 bzw. 11 selbst eine Neigungslage hat. Vielmehr verläuft hier die betreffende Wand, bspw. die Wand 12, selbst etwa parallel zur Ebene der Austrittsöffnung 13 oder des Gleichrichters bzw. Laminarisators 14. An der Wand 12 sind jedoch, normal zu deren Ebene ausgerichtet, ebene Schichtkörper 12a, bspw. Bleche, befestigt. Diese Schichtkörper 12a sind dabei in Parallelabständen zueinander angeordnet und haben jeweils unterschiedliche Länge, derart, daß ihre freien Längskanten an eine gemeinsame Ebene heranreichen, welche gegenüber der Ebene der Austrittsöffnung 13 oder des Gleichrichters bzw. Laminarisators 14 spitzwinklig geneigt verläuft. Die hieraus resultierende Wirkungsweise ist dabei die gleiche, als ob die Wand 12 selbst die der Fig. 2 entsprechende Neigungslage haben würde.The embodiment according to FIG. 8 differs from that according to FIG. 2 in that the wall 12 or 11 itself does not have an inclined position on the outflow chamber 5 or also on the inflow chamber 4. Rather, the wall in question, for example the wall 12, itself runs approximately parallel to the plane of the outlet opening 13 or the rectifier or laminarizer 14. However, on the wall 12, plane laminate bodies 12a, for example metal sheets, are oriented normal to their plane. attached. These laminated bodies 12a are arranged at parallel distances from one another and each have a different length, such that their free longitudinal edges reach a common plane which is inclined at an acute angle to the plane of the outlet opening 13 or the rectifier or laminarizer 14. The mode of operation resulting from this is the same as if the wall 12 itself would have the inclination position corresponding to FIG. 2.

Die Schichtkörper 12a bilden miteinander und mit der sie tragenden Wand 12 jeweils Schikanen, durch welche eine größere Anzahl unterschiedlich tiefer Hohlräume gegeneinander abgegrenzt werden. Diese Hohlräume können dabei nach Art von Helmholz-Resonatoren als Schalldämpfer wirken.The laminated bodies 12a form baffles with one another and with the wall 12 carrying them, by means of which a larger number of cavities of different depths are delimited from one another. These cavities can act as silencers in the manner of Helmholz resonators.

Eine der Fig. 8 äquivalente Bauart für einen Quelluftauslaß der in Fig. 4 gezeigten Art, wird durch die Ausgestaltung geschaffen, wie sie in Fig. 9 der Zeichnung dargestellt ist. An die Stelle der kurvenförmig gekrümmten Wand 12 nach Fig. 4 treten hier wiederum die Schichtkörper 12a von unterschiedlicher Breite, wobei diese so an der ebenen Wand 12 befestigt sind, daß ihre freien Längskanten auf einem Kurvenzug liegen, welcher dem Krümmungsverlauf entspricht, wie er in Fig. 4 für die Wand 12 gezeigt ist.One of FIG. 8 equivalent design for a displacement air outlet of the type shown in Fig. 4 is created by the configuration as shown in Fig. 9 of the drawing. In this case, the laminated body 12a of different widths takes the place of the curved wall 12 according to FIG. 4, these being fastened to the flat wall 12 in such a way that their free longitudinal edges lie on a curve which corresponds to the course of curvature as shown in FIG Fig. 4 is shown for the wall 12.

In Fig. 10 ist eine weitere Variationsmöglichkeit für einen Quelluftauslaß 1 gezeigt. Hier wird jedoch der Gleichrichter bzw. Laminarisator 14 genutzt, um der Ausströmkammer 5 die sich in Strömungsrichtung der Luft etwa keilförmig verengende Gestaltung zu geben. Die Gleichrichter- bzw. Laminarisator-Lamellen 14a haben hier nämlich unterschiedliche Baubreite und sind dabei so angeordnet, daß ihre freien Längskanten an eine Ebene bzw. an einen Kurvenzug heranreichen, welcher die sich verengende Kontur der Ausströmkammer 5 begrenzt.10 shows a further possible variation for a source air outlet 1. Here, however, the rectifier or laminarizer 14 is used in order to give the outflow chamber 5 the configuration which narrows approximately wedge-shaped in the flow direction of the air. The rectifier or laminarizer lamellae 14a here have different widths and are arranged so that their free longitudinal edges reach a plane or a curve which limits the narrowing contour of the outflow chamber 5.

Eine rotationssymmetrische Bauart für einen Quelluftauslaß 1 ist in Fig. 11 der Zeichnung zu sehen. Eier wird dabei anstelle einer geneigt verlaufenden, ebenen Wand 12 ein Innenkegel 12b benutzt, der gegenüber dem zylindrisch-ringförmigen Gleichrichter bzw. Laminarisator 14 eine ringförmige Ausströmkammer 5 begrenzt, deren Ringraum sich in Strömungsrichtung der Luft jeweils keilförmig verengt.A rotationally symmetrical design for a displacement air outlet 1 can be seen in FIG. 11 of the drawing. Eggs are used instead of an inclined, flat wall 12, an inner cone 12b, which is opposite to the cylindrical-ring-shaped Rectifier or laminarizer 14 defines an annular outflow chamber 5, the annular space of which narrows in a wedge shape in the flow direction of the air.

Die Bauart nach Fig. 11 ist gewissermaßen eine rotationssymmetrische Variante des Ausführungsbeispiels nach Fig. 6.The design according to FIG. 11 is, as it were, a rotationally symmetrical variant of the exemplary embodiment according to FIG. 6.

Auch die Bauprinzipien der in den Fig. 8 bis 10 gezeigten Quelluftauslässe können ohne weiteres für rotationssymmetrische Bauformen von Quelluftauslässen genutzt werden, wie das die Fig. 12 und 13 verdeutlichen. Nach Fig. 12 wird anstelle des bei Fig. 11 benutzten geschlossenen Kegelmantels 12b ein Kegeleinsatz 12c benutzt, der aus Schichtkörper-Scheiben erstellt ist, die unterschiedliche Durchmesser haben und jeweils mit bestimmten Abständen voneinander in Parallellage gehalten sind. Die freien Umfangskanten dieser Schichtkörper-Scheiben reichen dabei an einen Linienzug heran, welcher einem Kegelmantel zumindest ähnlich ist. Auch hier kann der Einsatzkörper 12c eine Schalldämpfer-Wirkung entfalten.The construction principles of the displacement air outlets shown in FIGS. 8 to 10 can also be used without difficulty for rotationally symmetrical designs of displacement air outlets, as is shown in FIGS. 12 and 13. According to FIG. 12, instead of the closed cone shell 12b used in FIG. 11, a cone insert 12c is used, which is made up of laminated body disks that have different diameters and are each held in parallel position at certain distances from one another. The free peripheral edges of these laminated discs reach a line which is at least similar to a conical surface. Here, too, the insert body 12c can have a muffler effect.

Das Ausführungsbeispiel nach Fig. 13 ist von der Bauform eines Quelluftauslasses 1 nach Fig. 10 abgeleitet. Es unterscheidet sich hiervon im Grunde genommen nur dadurch, daß es rotationssymmetrisch gestaltet ist und dabei die Gleichrichter- bzw. Laminarisator-Lamellen 14b aus Ringen bestehen, deren innere Ring-Begrenzungskanten an einen Linienzug heranreichen, der einem Kegelmantel ähnlich ist.The exemplary embodiment according to FIG. 13 is derived from the design of a displacement air outlet 1 according to FIG. 10. It differs from this basically only in that it is designed to be rotationally symmetrical and the rectifier or laminarizer lamellae 14b consist of rings, the inner ring boundary edges of which approach a line that is similar to a cone jacket.

Selbstverständlich brauchen die Quelluftauslässe 1 nach den Fig. 11 bis 13 nicht unbedingt eine rotationssymmetrische Gestalt haben. Sie können vielmehr auch einen Polygon-Querschnitt erhalten, wobei ihre Einbauten 12b, 12c und 14b diesem Polygon-Querschnitt entsprechend konturiert sind.Of course, the displacement air outlets 1 according to FIGS. 11 to 13 do not necessarily have to have a rotationally symmetrical shape. Rather, they can also have a polygon cross section, with their internals 12b, 12c and 14b being contoured in accordance with this polygon cross section.

Erwähnt sei abschließend nur noch, daß die Luft-Zuführleitungen 2 nicht unbedingt eine runde Querschnittsform haben müssen, sondern vielmehr auch eine rechteckige oder quadratische Umrißform erhalten können.Finally, it should only be mentioned that the air supply lines 2 do not necessarily have to have a round cross-sectional shape, but rather can also have a rectangular or square outline shape.

Claims (6)

  1. An outlet (1) from a source of air for purposes of ventilation
       and air conditioning, which is connected via a distributor chest (3) to an air supply duct (2) and in which the distributor chest (3) consists of two chambers connected one behind the other in the direction of the flow of air, namely an admission chamber (4) and a discharge chamber (5), whilst the air experiences in each of the two chambers a deflection preferably through 90° and both the admission chamber (4) and the discharge chamber (5) exhibit in the direction of flow of the air a cross-section which becomes narrower towards its respective outlet opening (8, 13), and the outlet opening (8) from the admission chamber (4) and the inlet opening (9) to the discharge chamber (5) extend at least approximately over the whole length and breadth of their long sides lying next one another or respectively connected together.
  2. An outlet from a source of air as in Claim 1,
       characterized in that
    in the region of the connection between the admission chamber (4) and the discharge chamber (5) a perforated plate (10), a honeycomb grid or a gauze fabric is built in.
  3. An outlet from a source of air as in Claim 1 or 2,
       characterized in that
    the two chambers (admission chamber 4, discharge chamber 5) in the direction of the plane normal to their outlet and inlet openings (8 and 9) which correspond with one another, in each case become narrower in the shape of a wedge or curve and form a socalled pointed channel.
  4. An outlet from a source of air as in one of the Claims 1 to 3,
       characterized in that
    the admission chamber (4) in parallel with the plane of its outlet opening (8) and the discharge chamber (5) in parallel with the plane of its inlet opening (9) exhibits a rightangled peripheral boundary (Figure 3).
  5. An outlet from a source of air as in one of the Claims 1 to 3,
       characterized in that
    the admission chamber (4) in parallel with the plane of its outlet opening (8) and the discharge chamber (5) in parallel with the plane of its inlet opening (9) exhibits a trapezoidal peripheral boundary (Figure 5).
  6. An outlet from a source of air as in one of the Claims 1 to 3,
       characterized in that
    with the outlet opening (13) from the discharge chamber (5) is associated a straightener or laminarizer (14) which consists, e.g., of blades and/or a honeycomb grid or a gauze fabric.
EP88116721A 1987-10-13 1988-10-08 Air exit for ventilation and air-conditioning purposes Expired - Lifetime EP0311934B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88116721T ATE89912T1 (en) 1987-10-13 1988-10-08 DISPLACEMENT AIR OUTLET FOR VENTILATION AND AIR CONDITIONING PURPOSES.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8713694U DE8713694U1 (en) 1987-10-13 1987-10-13 Displacement air outlet for ventilation and air conditioning purposes
DE8713694U 1987-10-13

Publications (3)

Publication Number Publication Date
EP0311934A2 EP0311934A2 (en) 1989-04-19
EP0311934A3 EP0311934A3 (en) 1990-08-08
EP0311934B1 true EP0311934B1 (en) 1993-05-26

Family

ID=6813008

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88116721A Expired - Lifetime EP0311934B1 (en) 1987-10-13 1988-10-08 Air exit for ventilation and air-conditioning purposes

Country Status (3)

Country Link
EP (1) EP0311934B1 (en)
AT (1) ATE89912T1 (en)
DE (2) DE8713694U1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2673456B1 (en) * 1991-02-28 1993-04-30 Alsthom Gec AERAULIC NOZZLE FOR COOLING SYSTEM.
DE4210279A1 (en) * 1992-03-28 1993-09-30 Turbon Tunzini Klimatechnik Displacement air outlet for ventilation and air conditioning systems
DE4213812A1 (en) * 1992-04-27 1993-10-28 Krantz H Gmbh & Co Air outlet
DE4319928C2 (en) * 1993-05-20 1997-05-07 Humanair Patentverwertung Gmbh Air conditioning system for the human area
DE102008039371A1 (en) * 2008-08-22 2010-02-25 Bolz Intec Gmbh Efficiency and comfortable effect improving method for use during heating or cooling of room, involves dividing hot or cool gas radiations into set of gas radiations by distributor
DE102011014392A1 (en) * 2011-03-11 2012-09-13 Ltg Aktiengesellschaft Volumetric flow control device and ventilation device for ventilating, heating and / or cooling a room of a building
DE102013111175B3 (en) * 2013-10-09 2014-09-04 Dr. Schneider Kunststoffwerke Gmbh Air outlet for air conditioning apparatus, has lying chambers for first terminal and second terminal, which are opened for supplying or discharging air for generating overpressure and low pressure respectively

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3598153A (en) * 1968-11-30 1971-08-10 Sanko Air Plant Mass flow rate equalizer usable for exhaust or supply openings of a duct

Also Published As

Publication number Publication date
DE3881324D1 (en) 1993-07-01
EP0311934A2 (en) 1989-04-19
EP0311934A3 (en) 1990-08-08
ATE89912T1 (en) 1993-06-15
DE8713694U1 (en) 1989-02-09

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