EP0787954B1 - Dispositif de sortie d'air - Google Patents

Dispositif de sortie d'air Download PDF

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Publication number
EP0787954B1
EP0787954B1 EP96810910A EP96810910A EP0787954B1 EP 0787954 B1 EP0787954 B1 EP 0787954B1 EP 96810910 A EP96810910 A EP 96810910A EP 96810910 A EP96810910 A EP 96810910A EP 0787954 B1 EP0787954 B1 EP 0787954B1
Authority
EP
European Patent Office
Prior art keywords
outlet
wall
ducts
outlet wall
air
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
EP96810910A
Other languages
German (de)
English (en)
Other versions
EP0787954A3 (fr
EP0787954A2 (fr
Inventor
Gregory Dr. Ing. Gottschalk
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.)
HESCO (SCHWEIZ) AG
Original Assignee
Hesco (Schweiz) AG
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 Hesco (Schweiz) AG filed Critical Hesco (Schweiz) AG
Publication of EP0787954A2 publication Critical patent/EP0787954A2/fr
Publication of EP0787954A3 publication Critical patent/EP0787954A3/fr
Application granted granted Critical
Publication of EP0787954B1 publication Critical patent/EP0787954B1/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
    • F24F13/02—Ducting arrangements
    • F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
    • F24F13/068—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser formed as perforated walls, ceilings or floors

Definitions

  • the invention relates to a device for the introduction of Air in a room to be ventilated or air-conditioned, with an outlet wall of a device housing made from honeycomb tight side-by-side, thin-walled outlet channels consists of the length of the thin-walled outlet channels is larger than its largest transverse dimension, with the outlet edges the thin-walled outlet channels together the outer Form the interface of the outlet wall.
  • a device for the introduction of Air in a room to be ventilated or air-conditioned with an outlet wall of a device housing made from honeycomb tight side-by-side, thin-walled outlet channels consists of the length of the thin-walled outlet channels is larger than its largest transverse dimension, with the outlet edges the thin-walled outlet channels together the outer Form the interface of the outlet wall.
  • Devices of the type mentioned have the advantage that the Air flow from the outlet wall with only a little over the exit surface changing speed gradient occurs, so that the air enters the room like a piston.
  • a device known from EP-A-0 563 509 is for the outflow in the floor area of a room to be ventilated. She has one for this outlet wall provided on the side of the device housing, through a honeycomb grid arranged between two perforated plates is formed such that each outlet channel or honeycomb at its inner and outer end through a hole in the adjacent Perforated sheet is limited and the perforated cross section is smaller than the cross section of the respective outlet duct. To compensate for the influence of the gravity of the colder air, the outlet channels or honeycombs have one accordingly diagonally upward course.
  • resulting profile of the total flow is at predetermined amount of the total flow with a certain under-temperature solely by the shape of the ones to be ventilated Space extending into the outlet wall and the uniform Orientation of their numerous outlet channels determined.
  • the device accordingly to protrude into the room.
  • the invention has for its object a device mentioned type to find the one that best suits the respective spatial Adaptable introduction of air into one Space allows, so that a particularly advantageous for ventilation Flow profile can be achieved without the outer Shape of the device and its outlet wall by this The task must be determined.
  • a different Flow rate in the numerous outlet channels determined by the length of the exhaust ducts and / or their cross-sectional size are graduated.
  • a device 1 has a housing 2 which with a connection, not shown, for connection to the supply air duct of a ventilation system or an air conditioner and with an outlet wall 3 for introducing air into one room to be ventilated or air-conditioned.
  • This housing 2 is for insertion e.g. behind the ceiling panel of a room to be ventilated, so that the Outlet wall 3 a limitation of the room to be air-conditioned forms, for example, flush with the adjacent room wall transforms.
  • Fig. 2 shows a non-uniform example of an area.
  • Thick outlet wall 3 which is characterized by a correspondingly graded length of the outlet channels 4 resulting different outflow velocity, so that curve 5 the speed vectors 6 a cross section through the Profile of the velocity distribution of the resulting total flow represents in this area.
  • Fig.3 illustrates that a gradation of the exit speeds on the outlet channels 4 instead of through one stepped length also by a stepped diameter or a graduated transverse dimension of the outlet channels 4 reached can be. It also goes without saying that through the Fig. 2 and 3 illustrated measures combined with each other could be.
  • Figures 2 and 3 give the flow change only in the direction of the cross-sectional view again.
  • 1 and 6 illustrate examples in addition to this for graded changes in the direction of the X and Y axis Coordinate system, so that a bubble-shaped bulge of the airfoil with flattening to the outside areas of the Outlet wall 3 is conceivable due to the representation is.
  • the annular sector-shaped section of an outlet wall shown in FIG 3 illustrates an embodiment of an inventive one Device in which in an inner annular Area of outlet ducts 4 with a larger flow cross-section and in an outer annular area Outlet channels 4 with a smaller flow cross-section are provided.
  • the outlet wall 3 is behind 7 concentrically on its inside along the section line 10 or bowl-shaped, so that the outlet channels 4 of the middle area not only because of its larger size Cross section but also because of their lower Length have a lower flow resistance and consequently the outflow amount in the middle area is considerable is larger and gradually decreases towards the outside and inside. On This effectively prevents the peripheral Secondary air outflow is induced.
  • a negative pressure which is a return flow of supply air and consequently its circulation causes.
  • the outlet channels according to FIG. 7 consist, for example, of a layered, corrugated material 11 with in between arranged, flat, membrane-like thin walls 12, so that the cross-sectional shape of each of the numerous outlet channels 4 is approximately triangular or trapezoidal.
  • the shape of the Outlet channels 4 is thus essentially due to the manufacturing technique determined using the technique of material deformation forms numerous possibilities.
  • the outlet channels should 4 in honeycomb style only through a thin wall from each other be separated so that the total available Opening cross section for a certain size of the outlet wall 3 is as large as possible.
  • a device according to the invention Device in easily accessible areas to attach a protective grille 13 in front of the outlet wall 3, such as it indicates the Fig.4.
  • a protective grille can be one Form part of the device.
  • the fins of the protective grille are flowed around without flow separation, so that through them the flow pattern arising on the device is not significant being affected.
  • FIGS. 8 to 12 show exemplary embodiments according to the invention Devices in which a pre-distribution of the from the Exhaust channels 4 outflowing amount of air during the inflow the outlet wall 3 through inner baffle walls or guide elements 14 to 24 takes place, so that in the absence of gradation of permeability the outlet channels 4, i.e. at their constant opening cross-section this just generating a profiled or non-uniform and low-turbulence overall flow serve at the outlet from the outlet wall 3.
  • the outlet channels 3 by different Length and / or opening width to a desired one Type of flow profile of the resulting total flow contribute.
  • FIG. 8 In the embodiment of Figure 8 are two baffles and guide flaps 14.15 symmetrical to the axis of a rail-shaped Supply air duct 25 arranged and around a perpendicular to the flow direction extending axis 27.28 pivotable.
  • the one in the bottom Part of the illustration shown flow profile illustrated the influence of the swivel position of this jam and Guide flaps 14, 15 on the shape of the airfoil.
  • FIG. 9 can relate both to one, similar to the embodiment of Figure 8, rail-shaped Device as well as a mushroom-shaped device Respectively.
  • the outlet channels 4 have a conical shape there shape widening in the direction of flow. A pre-distribution of the Air takes place by means of a diffuser 17, the angle of its spread is more than 5 °.
  • perforated Storage wall 26 centrally and at a distance from the inside the outlet wall 3 arranged.
  • FIG. 11 and 12 are for the Air distribution to the outlet wall 3 at a distance in front of this perforated baffles 21 to 23 and 24 are provided. These can according to Fig. 11 staggered in a row be arranged and have major interruptions 32.
  • Fig. 12 shows an embodiment in which the middle area the perforated storage wall 24 by a larger number of perforation holes 33 is more permeable, so that a Larger proportion of those flowing through the housing channel 2 Air is supplied to the central area of the outlet wall 3 and the outflow from the device with one through the line 34 indicated flow profile takes place.
  • FIGS. 10 and 12 can also be used instead on a circular cylindrical device also on a linear outlet run executed device so that they for Generation of an air curtain, e.g. in order to be accessible Cooling shelves of sales systems a thermal demarcation to accomplish. Because a mixture with ambient air is low is effective, even with a smaller air throughput Air curtain.
  • FIG. 11 also shows schematically a particularly simple design Device in which the outlet wall 3 from usual honeycomb material, i.e. with equal and parallel to each other extending outlet channels 4 is composed.
  • the outflow directions are graduated so that the total flow specifically has an uneven profile, similar to that due to the design according to Fig. 7.
  • a control member 37 of this device 36 causes the supply air to be switched periodically to one of several connected to the common inflow channel 38 or 39 Devices 1.
  • the timing of these reversals can be tailored to suit individual needs the person residing in it and others Room loads can be adjusted.
  • Fig. 16 shows an embodiment of a circular according to the invention Device in which the outlet wall 3 a central, delimited by a peripheral wall 35 interior 36 with outlet channels parallel to one another and to the central axis 4, while that surrounding this area 36 Outside area 37 outlet channels 4 with one outward directional change, so that the Air flow in the exhaust ducts from one to the central axis the outlet wall 3 parallel to an outward direction direction is diverted.
  • Fig. 17 shows an enlarged partial cross section of an outside area 37, in the illustration of various Embodiments of outlet channels 3 with change of direction schematically several individual examples combined in one presentation have been.
  • a concrete version would be in the outside area 37 only one embodiment of outlet channels 3 in compact arrangement provided side by side.
  • An arcuate Change in direction of the outlet channels 4 is fluidic preferable, however, for simpler manufacturing reasons angled outlet channels 4 can also be provided.
  • the outlet channels in the outer area 37 can also straight, e.g. with gradual cross-sectional expansion run obliquely outwards, the directional angle being different Outlet channels 4 also change outwards differently can be.
  • Fig. 18 shows a sector-shaped detail an outlet wall 3 recognize that the cross-sectional shape of outlet channels arranged in annular groups can be different, determined by manufacturing techniques and to achieve special aesthetic effects, such as they can be particularly advantageous for such devices can.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
  • Duct Arrangements (AREA)
  • Air-Flow Control Members (AREA)
  • Jet Pumps And Other Pumps (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)

Claims (13)

  1. Dispositif pour introduire de l'air dans un local à aérer ou à climatiser, avec une paroi de sortie (3) d'un logement de dispositif (2) composée de canaux de sortie (4) à parois fines serrés les uns contre les autres en alvéoles, la longueur des canaux de sortie (4) à parois fine étant plus grande que leur plus grande dimension transversale, les bords de sortie des canaux de sortie à parois fines formant ensemble la surface de délimitation extérieure de la paroi de sortie (3), caractérisé en ce que le profil d'écoulement (5, 6, 7, 31, 64) de l'écoulement total passant par la sortie est déterminé par des mesures permettant d'obtenir une perméabilité différente et/ou une quantité différente atteignant la paroi de sortie (3), les mesures se composant d'actions visant à obtenir une résistance de l'air à l'intérieur des canaux de sortie (4) et/ou dans des répartiteurs d'écoulement (18-28) disposés en amont de la paroi de sortie (3).
  2. Dispositif selon la revendication 1, caractérisé en ce que les canaux de sortie sont séparés les uns des autres par des parois fines (11, 12) formant membranes.
  3. Dispositif selon la revendication 1 ou 2, caractérisé en ce qu'une quantité d'écoulement différente dans les canaux de sortie (4) de la paroi de sortie (3) est déterminée par un échelonnement de la longueur et/ou de la taille en section de ces canaux de sortie (4).
  4. Dispositif selon l'une quelconque des revendications 1 à 3, caractérisé en ce que les canaux de sortie (4) de la paroi de sortie (3) aboutissent à une surface de sortie de forme plane, cylindrique ou à courbures multiples.
  5. Dispositif selon l'une quelconque des revendications 1 à 4, caractérisé en ce qu'il est prévu dans la paroi de sortie (3) des groupes de canaux de sortie (4) qui se différencient par une orientation différente.
  6. Dispositif selon l'une quelconque des revendications 1 à 4, caractérisé en ce que la perméabilité et/ou la quantité parvenant à la paroi de sortie (3) sont conçues de façon à diminuer en direction d'un ou plusieurs de ses bords.
  7. Dispositif selon l'une quelconque des revendications 1 à 6, caractérisé en ce qu'au moins une partie des canaux de sortie (4) disposée sur la périphérie de la paroi de sortie (3) présente une orientation courbe ou en angle dans le sens de l'écoulement vers le bord de la paroi de sortie (3).
  8. Dispositif selon l'une quelconque des revendications 1 à 7, caractérisé en ce qu'un groupe au moins de canaux de sortie (4) présente une section qui augmente dans le sens de l'écoulement,
  9. Dispositif selon l'une quelconque des revendications 1 à 8, caractérisé en ce que la paroi de sortie (3) se compose de plusieurs éléments alvéolaires juxtaposés dans lesquels les canaux de sortie (4) ont des orientations différentes.
  10. Dispositif selon l'une quelconque des revendications 1 à 9, caractérisée en ce que le bord de sortie de la paroi des canaux de sortie (4) présente un bourrelet en forme de goutte en section et arrondi vers l'extérieur.
  11. Dispositif selon l'une quelconque des revendications 1 à 10, caractérisé en ce qu'en vue d'obtenir un débit d'écoulement différent dans les nombreux canaux de sortie (4), des parois d'accumulation et de guidage (14-24) sont disposées derrière la paroi de sortie (3).
  12. Dispositif selon l'une quelconque des revendications 1 à 10, caractérisé en ce qu'au moins une paroi perforée (21-23 ; 24) de perméabilité variable est disposée dans le sens de l'écoulement en amont de la paroi de sortie (3) et à distance de celle-ci.
  13. Dispositif selon l'une quelconque des revendications 1 à 12, caractérisé en ce qu'il est relié à un dispositif (35, 36) permettant de créer une arrivée d'air pulsée.
EP96810910A 1996-01-30 1996-12-30 Dispositif de sortie d'air Expired - Lifetime EP0787954B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH23596 1996-01-30
CH23596 1996-01-30
CH235/96 1996-01-30

Publications (3)

Publication Number Publication Date
EP0787954A2 EP0787954A2 (fr) 1997-08-06
EP0787954A3 EP0787954A3 (fr) 1998-03-18
EP0787954B1 true EP0787954B1 (fr) 2000-05-24

Family

ID=4182374

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96810910A Expired - Lifetime EP0787954B1 (fr) 1996-01-30 1996-12-30 Dispositif de sortie d'air

Country Status (5)

Country Link
EP (1) EP0787954B1 (fr)
AT (1) ATE193369T1 (fr)
DE (1) DE59605301D1 (fr)
ES (1) ES2152508T3 (fr)
NO (1) NO310792B1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE0302201D0 (sv) 2003-08-13 2003-08-13 Airson Ab Lufttillförselanordning
SE0401746D0 (sv) * 2004-07-05 2004-07-05 Camfil Ab An air filter unit

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2608792A1 (de) * 1976-03-03 1977-09-08 Josef Piederstorfer Mehrfachduese zur erzeugung radialer verdraengungsstroemungen
IN152016B (fr) * 1980-11-24 1983-09-24 Klenzaids Engineers Plc
DE4210279A1 (de) * 1992-03-28 1993-09-30 Turbon Tunzini Klimatechnik Quelluftdurchlaß für raumlufttechnische Anlagen

Also Published As

Publication number Publication date
ATE193369T1 (de) 2000-06-15
EP0787954A3 (fr) 1998-03-18
DE59605301D1 (de) 2000-06-29
ES2152508T3 (es) 2001-02-01
NO965577L (no) 1997-07-31
NO965577D0 (no) 1996-12-27
NO310792B1 (no) 2001-08-27
EP0787954A2 (fr) 1997-08-06

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