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EP0657014B1 - Sortie d'air pour installations de ventilation - Google Patents

Sortie d'air pour installations de ventilation Download PDF

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Publication number
EP0657014B1
EP0657014B1 EP94919647A EP94919647A EP0657014B1 EP 0657014 B1 EP0657014 B1 EP 0657014B1 EP 94919647 A EP94919647 A EP 94919647A EP 94919647 A EP94919647 A EP 94919647A EP 0657014 B1 EP0657014 B1 EP 0657014B1
Authority
EP
European Patent Office
Prior art keywords
air
air outlet
discharge
propelling nozzle
nozzle
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
EP94919647A
Other languages
German (de)
English (en)
Other versions
EP0657014A1 (fr
Inventor
Adam Bernhardt
Henryk Bernhardt
Georg Bernhardt
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.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0657014A1 publication Critical patent/EP0657014A1/fr
Application granted granted Critical
Publication of EP0657014B1 publication Critical patent/EP0657014B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • F24F13/26—Arrangements for air-circulation by means of induction, e.g. by fluid coupling or thermal effect
    • 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

Definitions

  • the invention relates to an air outlet for a ventilation system for ventilation of rooms, especially of hall-like rooms, each at the exit of a Air supply duct is arranged and with at least a propellant nozzle for a propellant jet and one of the Driving nozzle adjacent exit field for out of the air duct air to be extracted, which is a variety of outlet openings.
  • From DE-A-28 51 046 is an air outlet device for Room air conditioning and ventilation systems known, at the air duct at the outlet points each with a perforated plate covering the outlet opening for Tow air is provided.
  • the one with the perforated plate The exit area is encircled with a collar-shaped apron provided to allow access to room air in the immediate exit area.
  • the This system uses a separate, provided propellant nozzle integrated in the perforated plate, via a separate pipe network using a additional pressure generator is made available.
  • Such a two-channel system with an additional pressure generator causes a not inconsiderable additional effort both in the construction and operation of such a system.
  • the invention has for its object an air outlet of the kind described in the introduction to improve that the kinetic provided by the propellant nozzle Energy essentially only for acceleration and the transport of the tow air is available, without this causing a noticeable whirl of indoor air is induced.
  • the exit field is expediently marked by a Perforated plate formed.
  • the backlog resistance of such Perforated plate is sufficient even with relatively large individual diameters the holes out to make the necessary differences in the passage resistance between the driving nozzle and the exit field to create.
  • Another advantage is here in the fact that large-area exit fields can be created, in the corresponding propellant nozzles are used.
  • the shielding to effect by a baffle or the like is in one Embodiment of the invention provided that the shield at least in part through a channel-like extension of the air outlet is formed which is the outlet plane protrudes beyond the motive nozzle in the jet direction and at least has a part of the exit field for the drag air.
  • This is particularly useful when arranging several Driving nozzles next to each other ensures that the from the Propellant jets emerging at least partially can expand and this due to the pressure conditions practical within the channel-like extension only drag air from the exit field of the Propellant air jets is taken. Only at a greater distance the exit field then has a slight impact Induction of indoor air. It is particularly useful it when the exit field is in the form of a channel-like Extension is formed and at least the driving nozzle partially encloses.
  • the exit field at least partially essentially perpendicular to the jet axis of the driving nozzle is aligned.
  • the driving nozzle with respect to its jet axis is adjustable.
  • the advantageous possibility given with standard components to meet different operational requirements So one is supplied with cold air in the to be ventilated Place the propellant nozzle below the outlet field, then the jet axis of the propellant nozzle slightly upwards is deflected, the exit field expediently is arranged above the driving nozzle and thus from the driving jet the drag air is "carried" into the room.
  • the arrangement is convenient hit the other way around, so that with one above the Exit field arranged driving nozzle, the jet axis is slightly deflected down over the exit field supplied warm air "pressed" into the room becomes.
  • the one in Fig. 1 in a side view and in Fig. 2 in a Air outlet shown in front view is as a final component 1 formed for an outlet on an air supply duct 2.
  • the air outlet is essentially made up of several Driving nozzles 3 for generating driving jets that can be pivoted can be stored so that the beam axis 7 of each generated driving jet adjustable in its angular position is.
  • the driving nozzle 3 is an exit field 4 for drag air assigned, which is formed for example by a perforated plate is and that in the illustrated embodiment located above the level of the driving nozzles 3.
  • Fig. 2 is the perforated plate schematically through the cross hatching shown.
  • the exit field is designed so that its surface is not only above the outlet nozzles 3 but also clearly on both sides in the Extends into it. If the air supply duct 2 supplied with supply air, part of this air enters through the driving nozzles 3 in the form of several driving jets in the room. The other part of the air is over that Exit field introduced into the room.
  • the passage cross sections the driving nozzles on the one hand and the total cross-sectional area the exit field 4 on the other and the corresponding flow resistances of the driving nozzles 3 on the one hand and the exit field 4 on the other are coordinated so that the flow rate the driving jets in the area of the nozzle orifice is two to five times as high as that from the exit field 4 escaping drag air.
  • Such an air outlet is in the to be ventilated Space at an appropriate distance above the floor, for example in a workshop to be ventilated Introduced into the room at a height of over three meters.
  • the driving nozzles 3 exiting propellant jets create a room vortex is induced are at the air outlet acc.
  • Fig. 1 the driving nozzles 3 from the room by a shield 5, covered in the form of a cover plate, for example that primarily that emerging from the exit field 4 Drag air carried into the room by the propulsion jets becomes.
  • the driving jets can move upwards expand and take almost exclusively drag air from the exit field with, being by the drag air because of the relatively low flow rate only to a small extent indoor air in the so introduced Supply air is mixed in.
  • the speeds can be set so that the arrangement acts like a source ventilation.
  • the air in the propulsion jets for example 5 to 20 m / sec and a flow rate the air drag from 1 to 4 m / sec, respectively measured in the exit plane, isothermal Operation an average speed of Supply air at a distance of about 5 m from the relevant one Exit area of the air outlet of about 30-120 cm / sec.
  • the drag air is here from the driving jets carried the room inside.
  • the air outlet can also be arranged in reverse, which is particularly the case with It is advisable to supply warm air to a high hall.
  • the shield 5 is then arranged above the beam axis 7 pivoted downward, so that the the exit rock 4 exiting warm air into the room is "pressed down".
  • FIG. 4 is a modification of the embodiment according to. Fig. 1 shown.
  • this embodiment is next to an edge-like shield 5 of the driving nozzle 3 opposite a shielding of the propellant nozzle 3 towards the bottom of the room provided at the top in the form of a channel-like extension 6, whose end forms the exit field 4, so that the Exit level of the exit field 4 the exit level of the driving nozzle 3 in the beam direction.
  • FIG. 5 and 6 is an embodiment with a single nozzle shown, which is narrow, the exit field 4th is only arranged above the driving nozzle 3.
  • the shield 5 covering the area of the propellant nozzle covers down, also on both sides a corresponding Cover 5.1 provided which also allows side access prevented by room air.
  • the one shown in Figs. 5 and 6 Embodiment can also according to the arrangement. Fig. 3 to be built in.
  • FIG. 7 and 8 is a further embodiment of the design acc. Fig. 4 in a vertical section (Fig. 7) and in one Front view (Fig. 8) shown.
  • this embodiment encompasses the exit field in the form of a channel-like one Extension of the driving nozzles 3 overall like a channel, whereby this embodiment is also based on a propellant nozzle can be trained.
  • FIG. 9 is a modification of the embodiment according to. Fig. 7 shown.
  • the exit field 4 it is again possible to use the exit field 4 to design in the form of a perforated plate, so that the outlet openings are directed against the beam axis are.
  • the outlet openings of the outlet field 4 in the form a variety of small scoops 8 is executed, the Exit planes approximately parallel to the exit plane of the Driving nozzle 3 are arranged.
  • perforated sheet also includes other designs lattice-like structures.
  • the shield 5, for example in the embodiments according to FIGS. 1 to 4 changeable in the orientation to the beam axis, in particular pivotally connected to the end component 1 be. This means that even after installation Influencing and adjusting the beam effect in the Space inside possible.
  • the shield 5 instead of a full area Plate also through at least a part their surface formed with a perforated plate will. If the perforation is in the area of free end edge of the shield arranged here already interfering with air from the shielded Area.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Duct Arrangements (AREA)
  • Ventilation (AREA)
  • Self-Closing Valves And Venting Or Aerating Valves (AREA)
  • Air-Flow Control Members (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)

Claims (10)

  1. Sortie d'air pour une installation de ventilation destinée à ventiler des pièces, en particulier des pièces en forme de halles, la sortie d'air étant installée à chaque sortie d'un canal d'introduction d'air (2) et comprend au moins une buse de propulsion (3) pour un jet d'air de propulsion et, à proximité de la buse de propulsion (3), un champ de sortie (4) pour l'air à entraíner qui sort du canal d'introduction d'air, ledit champ de sortie comportant un grand nombre d'orifices de sortie, caractérisée en ce qu'au moins la buse de propulsion (3) sollicitée par l'air introduit par le canal d'introduction d'air (2) est associée à au moins un dispositif de protection (5, 6), qui s'étend latéralement pratiquement dans le sens du jet et protège, au moins partiellement, la zone de sortie de la buse de propulsion (3) contre la pénétration de l'air ambiant, la section de passage libre de la partie du champ de sortie (4) associée à la buse de propulsion (3) étant plus grande que la section de passage libre de la buse de propulsion (3), mais présentant une résistance à la circulation plus élevée que la buse de propulsion (3).
  2. Sortie d'air selon la revendication 1, caractérisée en ce que le dispositif de protection (5) est formé au moins en partie par un prolongement tubulaire (6) du canal d'introduction d'air, ledit prolongement formant une saillie au-dessus du plan de sortie de la buse de propulsion (3) dans le sens du jet et comportant au moins une partie du champ de sortie (4) pour l'air à entraíner.
  3. Sortie d'air selon l'une des revendications 1 ou 2, caractérisée en ce que le champ de sortie (4) est construit sous forme de prolongement tubulaire (6), qui entoure au moins partiellement la buse de propulsion (3).
  4. Sortie d'air selon l'une des revendications 1 à 3, caractérisée en ce que le champ de sortie (4) est orienté au moins en partie sensiblement perpendiculairement à l'axe du jet de la buse de propulsion.
  5. Sortie d'air selon l'une des revendications 1 à 4, caractérisée en ce qu'au moins une partie du champ de sortie (4) est orientée en formant un angle avec l'axe du jet (7) de la buse de propulsion (3), les orifices de sortie étant orientés vers l'axe du jet (7).
  6. Sortie d'air selon la revendication 5, caractérisée en ce que les plans de sortie (9) des orifices de sortie du champ de sortie (4) sont orientés presque parallèlement au plan de sortie de la buse de propulsion (3).
  7. Sortie d'air selon l'une des revendications 1 à 6, caractérisée en ce que la buse de propulsion (3) est montée de manière à pouvoir pivoter par rapport à l'axe du jet (7).
  8. Sortie d'air selon l'une des revendications 1 à 7, caractérisée en ce que le champ de sortie (4) est formé par une plaque perforée.
  9. Sortie d'air selon l'une des revendications 1 à 8, caractérisée en ce que le dispositif de protection (5) est monté de manière à pouvoir modifier son orientation par rapport au sens du jet, en particulier de manière à pouvoir pivoter.
  10. Sortie d'air selon l'une des revendications 1 à 9, caractérisée en ce qu'au moins une partie de la surface du dispositif de protection (5) est munie de perforations.
EP94919647A 1993-06-30 1994-06-21 Sortie d'air pour installations de ventilation Expired - Lifetime EP0657014B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE9309677U DE9309677U1 (de) 1993-06-30 1993-06-30 Luftaustritt für Belüftungsanlagen
DE9309677U 1993-06-30
PCT/EP1994/002013 WO1995001537A1 (fr) 1993-06-30 1994-06-21 Sortie d'air pour installations de ventilation

Publications (2)

Publication Number Publication Date
EP0657014A1 EP0657014A1 (fr) 1995-06-14
EP0657014B1 true EP0657014B1 (fr) 1998-10-21

Family

ID=6894986

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94919647A Expired - Lifetime EP0657014B1 (fr) 1993-06-30 1994-06-21 Sortie d'air pour installations de ventilation

Country Status (6)

Country Link
EP (1) EP0657014B1 (fr)
AT (1) ATE172532T1 (fr)
DE (2) DE9309677U1 (fr)
DK (1) DK0657014T3 (fr)
PL (1) PL307569A1 (fr)
WO (1) WO1995001537A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19626884C2 (de) * 1996-07-04 2000-07-20 Schako Metallwarenfabrik Luftauslaß
DE29722570U1 (de) 1997-12-20 1999-06-10 Bernhardt, Adam, Zoetermeer Luftaustritt für Belüftungsanlagen
DE10157731A1 (de) * 2001-11-24 2003-06-12 Krantz Tkt Gmbh I Ins Luftauslass
WO2004042286A1 (fr) * 2002-11-08 2004-05-21 Young-Youl Yun Systeme de conditionnement d'air en vent naturel
ITMI20040105A1 (it) * 2004-01-27 2004-04-27 Rg Group Spa Condizionatore a dislocamento con diffusione dell'aria a vena aderente
NO334985B1 (no) * 2008-06-16 2014-08-18 Aet Arbeidsmiljoe Og Energiteknikk As Anordning ved tilluftstak

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2851046A1 (de) * 1978-11-25 1980-06-04 Walter Ing Grad Hirsch Luftauslassvorrichtung fuer raumklimatisierungs- und belueftungsanlagen
DE3302340A1 (de) * 1983-01-25 1984-07-26 Enig Energieberatung Innovation Gmbh, 6300 Giessen Lueftungs- und klimaanlage
US4876949A (en) * 1988-04-18 1989-10-31 Thermo-Aire Systems, Inc. Low temperature air induction diffuser
DE3838419A1 (de) * 1988-11-12 1990-05-17 Schako Metallwarenfabrik Duesenauslass
DD293416A5 (de) * 1990-04-06 1991-08-29 Hochschule Fuer Seefahrt Warnemuende/Wustrow,De Luftauslass mit induktionswirkung der raumluft ohne zusaetzliche energie

Also Published As

Publication number Publication date
DK0657014T3 (da) 1999-07-12
DE9309677U1 (de) 1994-11-10
EP0657014A1 (fr) 1995-06-14
ATE172532T1 (de) 1998-11-15
DE59407124D1 (de) 1998-11-26
PL307569A1 (en) 1995-05-29
WO1995001537A1 (fr) 1995-01-12

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