EP0406593B1 - Caisson de sortie d'air à coupe transversale trapézoidale - Google Patents

Caisson de sortie d'air à coupe transversale trapézoidale Download PDF

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Publication number
EP0406593B1
EP0406593B1 EP90111181A EP90111181A EP0406593B1 EP 0406593 B1 EP0406593 B1 EP 0406593B1 EP 90111181 A EP90111181 A EP 90111181A EP 90111181 A EP90111181 A EP 90111181A EP 0406593 B1 EP0406593 B1 EP 0406593B1
Authority
EP
European Patent Office
Prior art keywords
air
air outlet
perforated
sections
section
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
EP90111181A
Other languages
German (de)
English (en)
Other versions
EP0406593A3 (en
EP0406593A2 (fr
Inventor
Franc Dr.-Ing. Sodec
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.)
H Krantz GmbH and Co
Original Assignee
H Krantz GmbH and Co
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6384183&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0406593(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by H Krantz GmbH and Co filed Critical H Krantz GmbH and Co
Priority to AT90111181T priority Critical patent/ATE90150T1/de
Publication of EP0406593A2 publication Critical patent/EP0406593A2/fr
Publication of EP0406593A3 publication Critical patent/EP0406593A3/de
Application granted granted Critical
Publication of EP0406593B1 publication Critical patent/EP0406593B1/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
    • 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 a trapezoidal air outlet box consisting of a cover with a connecting piece, a perforated bottom divided into three sections with a section horizontally arranged at a distance from the connecting piece and two sections which adjoin it laterally and rise to the outside.
  • Such a device known for generating a displacement flow from DE 36 43 175 A1 has nozzles arranged in rows as outlet openings over the surface of the air outlet box bottom, the center distance of which from one another corresponds to at least three to twelve times the outlet diameter of the nozzles. This device is intended to ensure that a substantially lower air volume flow is sufficient to obtain a stable displacement flow.
  • the air outlets previously preferred in such companies are designed in such a way that they generate highly inductive air jets with a long throw. This creates room air rollers that ensure an even temperature and moisture distribution in the room. Due to the increase in performance of the production machines, especially in textile companies, the dust development is so great that the technology of the air rollers, i. H. the highly inductive air jets lead to unpleasant dust concentration, since the dust particles are distributed throughout the production hall.
  • the invention has for its object to improve the known displacement outlet so that even less dust particles are mixed and distributed with the room air and an even better displacement towards the room floor is achieved, so that the dust concentration in the occupied area decreases further and in particular by the Air flow an upward movement of the dust particles is suppressed.
  • the air flow from a large number of small perforations is naturally low in turbulence, the turbulence decreasing with a smaller diameter.
  • An air outlet speed in the range of 0.2 to 2 m / sec can thus be achieved via the perforations.
  • Low-turbulence air jets are unstable at such a low exit speed and tend to fall off quickly.
  • the air outlet box is completed according to the invention by swirl outlets built into it.
  • the air jets from the swirl outlets are highly turbulent per se, but in the air outlet box according to the invention they induce the supply air which emerges from the adjacent perforations and leave the ambient air largely unaffected.
  • the swirl outlets therefore have the task of increasing the stability of the air jet which emerges as a result of the larger jet pulse.
  • the three sections forming the bottom and the longitudinal side walls of the air outlet box are formed from perforated plates, the holes of which have a diameter of 2 to 15 mm, preferably 3 to 8 mm, the hole spacing being chosen such that the free passage cross-section is 15 to 50%, preferably 20 to 30%, of the perforated plate area.
  • swirl outlets are each arranged in a row at a uniform distance over the longitudinal extent of the box.
  • an embodiment of the invention provides that preferably two baffles are arranged in the interior of the box, each of which can be pivoted about an axis parallel to the longitudinal central axis of the box.
  • the air outlet according to the invention can either be mounted directly under the ceiling or suspended at a distance from it.
  • the air outlet box is covered on the ceiling side by a cover 2 provided with a connecting piece 1.
  • a bottom 3 is composed of a horizontal section 4 and two sections 5 adjoining it laterally and rising to the outside. Side walls 6 connect the cover 2 to the bottom 3.
  • the three sections 4 and 5 forming the base 3 and the vertically oriented longitudinal side walls 6 are perforated and formed from perforated sheets.
  • swirl outlets 7 are installed, which are arranged at regular intervals distributed over the longitudinal axis of the air outlet box.
  • baffles 8 are mounted so as to be pivotable about a rotational axis parallel to the longitudinal center axis of the air outlet box.

Landscapes

  • 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)
  • Connection Or Junction Boxes (AREA)
  • Devices For Use In Laboratory Experiments (AREA)
  • Vehicle Step Arrangements And Article Storage (AREA)
  • Separation By Low-Temperature Treatments (AREA)

Claims (4)

  1. Caisson de sortie d'air trapézoïdal consistant en un couvercle pourvu d'un raccord (1), un fond perforé (3) divisé en trois sections (4, 5), avec une section (4) disposée à l'horizontale et située à l'opposé du raccord avec un certain espacement par rapport à celui-ci, et deux sections (5), qui s'y rattachent par les côtés et remontent dans la direction de l'extérieur, caractérisé en ce qu'en plus des trois sections (4, 5) qui forment le fond (3), deux parois latérales longitudinales (6) à orientation verticale, qui relient le couvercle (2) et le fond (3) sont également perforées, et en ce qu'au moins la section médiane horizontale (4) des trois sections (4, 5) formant le fond (3) et les deux parois latérales longitudinales (6) sont pourvues chacune d'au moins une sortie à tourbillons (7).
  2. Caisson de sortie d'air suivant la revendication 1, caractérisé en ce que les trois sections (4, 5) formant le fond (3) et les parois latérales longitudinales (6) consistent en des tôles perforées, dont les trous ont un diamètre de 2 à 15 mm, de préférence de 3 à 8 mm, l'écartement des trous étant choisi de manière à ce que la section de sortie libre soit de 15 à 50 %, de préférence de 20 à 30 % de la surface de tôle perforée.
  3. Caisson de sortie d'air suivant la revendication 1 ou 2, caractérisé en ce que plusieurs sorties à tourbillons (7) sont disposées en ligne à intervalles réguliers sur la longueur du caisson.
  4. Caisson de sortie d'air suivant au moins l'une des revendications 1 à 3, caractérisé en ce que de préférence deux déflecteurs (8) sont placés à l'intérieur du caisson, lesquels peuvent pivoter autour d'un pivot respectif, parallèle à l'axe médian long du caisson.
EP90111181A 1989-07-03 1990-06-13 Caisson de sortie d'air à coupe transversale trapézoidale Expired - Lifetime EP0406593B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90111181T ATE90150T1 (de) 1989-07-03 1990-06-13 Trapezfoermiger luftauslasskasten.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3921813A DE3921813C2 (de) 1989-07-03 1989-07-03 Trapezförmiger Luftauslaß
DE3921813 1989-07-03

Publications (3)

Publication Number Publication Date
EP0406593A2 EP0406593A2 (fr) 1991-01-09
EP0406593A3 EP0406593A3 (en) 1992-01-02
EP0406593B1 true EP0406593B1 (fr) 1993-06-02

Family

ID=6384183

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90111181A Expired - Lifetime EP0406593B1 (fr) 1989-07-03 1990-06-13 Caisson de sortie d'air à coupe transversale trapézoidale

Country Status (5)

Country Link
US (1) US5054379A (fr)
EP (1) EP0406593B1 (fr)
AT (1) ATE90150T1 (fr)
DD (1) DD296345A5 (fr)
DE (2) DE3921813C2 (fr)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK12792D0 (da) * 1992-02-03 1992-02-03 Ke Safematic As Ventilationssystem
CA2071680C (fr) * 1992-06-19 1998-05-05 Walter D. Klassen Diffuseur a ecoulement radial
DE4416841C2 (de) * 1994-05-13 1997-10-23 Mueller Erwin Gmbh & Co Luftauslaß, insbesondere Deckenluftauslaß
US6059655A (en) * 1996-01-24 2000-05-09 Chemfab Corporation Fabric air diffuser, method for diffusing air, and method for attenuating noise associated with flowing air
US6139426A (en) 1996-01-24 2000-10-31 Chemfab Corporation Molded polymer air diffusing screen
US6425821B1 (en) 1996-01-24 2002-07-30 Chemfab Corporation Pore-containing web for diffusing fluids
US5725427A (en) * 1996-01-24 1998-03-10 Chemfab Corporation Fabric air diffuser, method for diffusing air, and method for attenuating noise associated with flowing air
US5807171A (en) * 1996-06-17 1998-09-15 E.H. Price Limited Air diffuser apparatus
US5938525A (en) * 1997-07-23 1999-08-17 Tompkins Industries, Inc Air diffuser, and mold and method for its production
FR2785040B1 (fr) * 1998-10-22 2001-01-19 U N I R Ultra Propre Nutrition Dispositif et procede pour la protection rapprochee de produits ou objets sensibles a des agents contaminants vehicules par l'air ambiant
DE19921404C1 (de) * 1999-05-08 2000-07-27 Fritz Juergen Eidmann Luftauslaß, insbesondere Luftauslaß für den Wandeinbau
US6361432B1 (en) 1999-08-17 2002-03-26 Tomkins Industries, Inc. Air diffuser with air flow regulator
US6251007B1 (en) * 2000-02-05 2001-06-26 Randall L. Smith Transition inlet diffuser
SE526035C2 (sv) * 2002-09-04 2005-06-21 Johnson Medical Dev Pte Ltd System, anordning och metod för ventilation
US7641125B2 (en) * 2005-04-29 2010-01-05 E.H. Price Ltd. Variable air volume ceiling diffuser
US8911286B1 (en) * 2010-01-05 2014-12-16 Michael Lee Savigny Concentric air diffuser with an angled supply air face
WO2011083723A1 (fr) * 2010-01-06 2011-07-14 シャープ株式会社 Ventilateur de soufflage d'air, circulateur, dispositif de diffusion de microparticules, et procédé de circulation d'air
FR2956899B1 (fr) * 2010-02-26 2015-04-03 Thomas Faure Appareil de conditionnement d'air, son procede de pilotage et structure comprenant un tel appareil
NZ631243A (en) * 2014-09-08 2015-11-27 Fusion Hvac Pty Ltd Diffuser module
ES2897465T3 (es) * 2015-05-12 2022-03-01 Halton Oy Flujo de dilución controlada en entornos críticos
CA3085629A1 (fr) * 2017-12-18 2019-06-27 Bombardier Inc. Ensemble de distribution de circulation de plafond pour cabine d'aeronef
DE102018112959B4 (de) 2018-05-30 2020-06-18 Krantz Gmbh Verdrängungsluftauslass
RU189502U1 (ru) * 2019-02-20 2019-05-24 Юрий Васильевич Мальгин Панель воздухораспределителя
EP4269900A1 (fr) 2022-04-28 2023-11-01 Air'technologies Conduit diffuseur pour diffuser de l'air conditionné

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB591207A (en) * 1945-05-02 1947-08-11 Paul Brandt An improved diffuser adapted to deliver a rotating or whirling current of air or gas
US2859681A (en) * 1956-03-28 1958-11-11 Joel R Rachlin Air-flow ceiling arrangements
US3419714A (en) * 1965-12-01 1968-12-31 Sylvania Electric Prod Air handling troffer
US3327607A (en) * 1966-01-14 1967-06-27 Wehr Corp Air pattern control arrangement
CH509549A (de) * 1968-07-01 1971-06-30 Ltg Lufttechnische Gmbh Luftaustrittseinrichtung für Klima- oder Lüftungsanlagen
US3938430A (en) * 1972-05-18 1976-02-17 Koppang Ronald N Air vents
DE2609030C3 (de) * 1976-03-05 1984-05-24 Fläkt AB, 13134 Nacka Vorrichtung zum Führen von aus einer luftdurchlässigen perforierten Fläche austretenden Luftströmen
US4207864A (en) * 1978-06-08 1980-06-17 General Electric Company Damper
SU932135A1 (ru) * 1980-11-24 1982-05-30 Предприятие П/Я Г-4488 Воздухораспределитель
US4372196A (en) * 1981-03-30 1983-02-08 Henderson Donald L Insulating and draft preventing automatic shutter for attic and other exhaust type fans
GB2120778A (en) * 1982-05-20 1983-12-07 Howorth Air Eng Ltd Outlet device for an air conditioning system
JPS62297656A (ja) * 1986-06-17 1987-12-24 Nec Kyushu Ltd 乱流式空調システムの吹き出し口
DE3643175A1 (de) * 1986-12-18 1988-06-30 Krantz H Gmbh & Co Vorrichtung zur erzeugung einer verdraengungsstroemung
DE3822283A1 (de) * 1988-07-01 1990-01-04 Schako Metallwarenfabrik Drallauslass

Also Published As

Publication number Publication date
EP0406593A3 (en) 1992-01-02
EP0406593A2 (fr) 1991-01-09
DD296345A5 (de) 1991-11-28
DE3921813A1 (de) 1991-01-17
US5054379A (en) 1991-10-08
DE3921813C2 (de) 1995-03-30
ATE90150T1 (de) 1993-06-15
DE59001601D1 (de) 1993-07-08

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