EP0263333A2 - Sortie d'air à écoulement en spirales - Google Patents

Sortie d'air à écoulement en spirales Download PDF

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Publication number
EP0263333A2
EP0263333A2 EP87113532A EP87113532A EP0263333A2 EP 0263333 A2 EP0263333 A2 EP 0263333A2 EP 87113532 A EP87113532 A EP 87113532A EP 87113532 A EP87113532 A EP 87113532A EP 0263333 A2 EP0263333 A2 EP 0263333A2
Authority
EP
European Patent Office
Prior art keywords
air outlet
swirl
housing
outer cylinder
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.)
Granted
Application number
EP87113532A
Other languages
German (de)
English (en)
Other versions
EP0263333B1 (fr
EP0263333A3 (en
Inventor
Rüdiger Dr.-Ing. Detzer
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.)
Kesslertech GmbH
Original Assignee
Kesslertech GmbH
Kessler and Luch GmbH
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 Kesslertech GmbH, Kessler and Luch GmbH filed Critical Kesslertech GmbH
Priority to AT87113532T priority Critical patent/ATE68584T1/de
Publication of EP0263333A2 publication Critical patent/EP0263333A2/fr
Publication of EP0263333A3 publication Critical patent/EP0263333A3/de
Application granted granted Critical
Publication of EP0263333B1 publication Critical patent/EP0263333B1/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
    • 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
    • F24F13/28—Arrangement or mounting of filters

Definitions

  • the innovation relates to a swirl air outlet with an air box with supply air connection and with an air outlet pipe in which guide vanes are arranged to generate a swirl.
  • This negative pressure is particularly pronounced if - as usual - the clean rooms are kept under positive pressure and the positive pressure propagates into the installation rooms that are regularly provided above suspended ceilings. Leakages in the pipelines that can never be avoided then lead to the sucking in of contaminated air from the installation rooms, so that even high-quality filtered supply air is subsequently contaminated again.
  • the outlet tube provided with the outflow nozzle and the swirler is provided with a filter insert as a unit, the unit being interchangeable and being fastened to the housing of the air outlet with fastening means.
  • the filter insert is designed as a filter cartridge, the inner cylinder of which has a diameter which corresponds approximately to that of the outer tube.
  • This design ensures that the air is passed from the inside of the filter cartridge into the outlet tube without impact loss.
  • the swirl sensor which is fastened with a crossbeam, with a tripod or with a cross in the air outlet tube, can serve as a height stop.
  • a bayonet attachment of the air outlet tube is preferably made possible in a simple manner via a tripod.
  • the filter cartridge which is closed on one side with a cover and has a filter medium arranged between the inner cylinder and an outer cylinder, has an annular cover at the air outlet end connecting the inner cylinder and the outer cylinder and covering the filter medium arranged therebetween, which protrudes beyond the radius of the outer cylinder the fasteners cooperates.
  • This outstanding cover makes it easy to attach the entire insert with the filter cartridge and outlet tube to the housing of the air outlet.
  • the fastening means are designed as at least three screw bottles distributed over the circumference, which are supported on one side against the housing or connected to it and which can be tightened by means of nuts which are provided on screws fastened to the housing and guided through holes in the screw tabs are, each screw tab is assigned a screw with at least one nut.
  • This embodiment ensures that the fastening means can be retightened as screw means, that the fastening means are not connected directly to the housing and that the support a good force distribution can be achieved. It is useful to support the non-cutting side of the fastening tabs so that the clamping height of the overhanging edge to be tensioned is reached.
  • the screw tabs are designed as angle profile sections, the height of which corresponds to the height of the right-angled bend of the annular cover. This design supports one leg of the angle of the angle profile against the housing, while - because of the same height - the other leg presses on the web edge of the cover ring.
  • the interposed seal results in a tensioning path that favors tensioning.
  • the air outlet 10 consists essentially of the housing 11 surrounding the air box, which is closed with an upper cover 12. Fasteners such as rivets, screws or welded connections, indicated at 12.1, hold the lid on the housing.
  • the end of the housing 11 opposite the cover 12 is provided with a circumferential ring, so that an air outlet opening is created.
  • the filter insert 14 provided with the outflow tube 17 is inserted into this air outlet opening.
  • the filter insert 14 consists of an outer cylinder 14.1 and an inner cylinder 14.2, between which the filter medium 15 is arranged.
  • This filter medium is usually provided with axially extending folds which fill the space between the two air-permeable cylinders, preferably perforated sheet metal or expanded metal.
  • the filter cartridge 14 is covered on one side with the cover 16.1, while the other side remains open as the air outlet side.
  • the filter cartridge 14 thus formed protrudes into the air box of the air outlet 10, into which air of the supply air system flows through the tangential inlet opening 13. It goes without saying that supply air openings in the area of the cover plate 12 or other air supplies are also possible.
  • the air outlet end of the filter cartridge 14 is provided in the area of the inner and outer cylinder with an annular cover 16.2, which covers the filter medium on this side.
  • This annular cover 16.2 projects beyond the outer cylinder 14.1 and is bent at a distance from it at a right angle so that the standing edge points in the direction of the air outlet.
  • Fastening tabs 11.1 supported against the housing 11, designed as individual angular profile pieces, are pressed by means of the screw 11.2 against the web edge of the annular cover, whereby between the housing 11, near the inner edge which is bent inwards for stability reasons and limits the air outlet opening, and the projecting part of the cover ring 16.2 the seal 16.3 is arranged.
  • the bracket 19 shown as a cross-member, carries the swivel 18, which is formed from individual guide vanes 18.1, which are twisted in one sense, above the bolt 19.1 and on these, which are adjustable in height. These guide vanes are generally set at the same angle, so that the air exiting is given a uniform swirl. In special cases, however, it is also possible to adjust the angle of each of the guide vanes 18.1 in accordance with the requirements.
  • the bolt 19.1 is shown as a screw bolt which is fixed in the crossbar 19 by means of the nuts 19.2, the height of the bolt 19.1 being displaced relative to the crossbar 19 when the nuts are loosened and can be fixed by tightening the nuts 19.2.
  • Another height adjustability is given by the fact that the swirl sensor 18 is height-adjustable by means of nuts 19.3 on the bolt 19.1 and can be fixed in its height setting.
  • the outflow tube 17, the lower end of which is designed as an outflow nozzle 17.1, is placed on the projecting part of the inner cylinder 14.3 of the filter cartridge.
  • the lower edge of the outlet opening 17.1 advantageously closes with the lower edge of the suspended ceiling 20.
  • the filter area must be increased in accordance with the air flow to be blown out. This can initially be done by increasing the number of folds until a fold density that can no longer be exceeded is reached. In addition, the depth of the folds can also be increased, the diameter of the outer cylinder increasing, given the diameter of the inner cylinder. However, this also requires a larger opening in the housing of the air outlet. In order to carry out a further enlargement of the filter area, it is advisable to increase the height of the filter cartridge, but this also increases the height of the air outlet.
  • air outlets according to the innovation can generally also be built for extreme requirements, which meet the requirements both from a filtering point of view and from a fluidic point of view.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Percussion Or Vibration Massage (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
  • Air-Flow Control Members (AREA)
  • Devices For Medical Bathing And Washing (AREA)
  • Nozzles (AREA)
  • Duct Arrangements (AREA)
EP87113532A 1986-10-10 1987-09-16 Sortie d'air à écoulement en spirales Expired - Lifetime EP0263333B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87113532T ATE68584T1 (de) 1986-10-10 1987-09-16 Drall-luftauslass.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8626929U DE8626929U1 (de) 1986-10-10 1986-10-10 Drall - Luftauslaß
DE8626929U 1986-10-10

Publications (3)

Publication Number Publication Date
EP0263333A2 true EP0263333A2 (fr) 1988-04-13
EP0263333A3 EP0263333A3 (en) 1989-03-08
EP0263333B1 EP0263333B1 (fr) 1991-10-16

Family

ID=6799040

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87113532A Expired - Lifetime EP0263333B1 (fr) 1986-10-10 1987-09-16 Sortie d'air à écoulement en spirales

Country Status (5)

Country Link
EP (1) EP0263333B1 (fr)
AT (1) ATE68584T1 (fr)
DE (2) DE8626929U1 (fr)
ES (1) ES2026878T3 (fr)
GR (1) GR3003464T3 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3941899A1 (de) * 1989-12-19 1991-06-20 Kessler & Luch Gmbh Luftdurchlass mit filter
EP0490135A2 (fr) * 1990-12-11 1992-06-17 HumanAir Patentverwertungsgesellschaft mbH Dispositif pour introduire de l'air dans des locaux et salles et méthode pour sa mise en service
BE1018259A5 (fr) * 2006-10-03 2010-08-03 Halton Oy Dispositif terminal d'ecoulement d'air.

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4105905A1 (de) * 1991-02-26 1992-08-27 Kesslertech Gmbh Verfahren zum betrieb einer standardisierten klimaanlage und zulufteinfuehrungseinrichtung fuer die durchfuehrung des verfahrens
DE4301757C1 (de) * 1993-01-23 1994-05-05 Kesslertech Gmbh Luftauslaß, insbesondere Fußbodenluftauslaß oder Deckenluftauslaß, für lufttechnische Anlagen
DE202007003658U1 (de) * 2007-03-09 2008-07-24 Colt International Licensing Ltd., Havant Vorrichtung zur Beeinflussung des Innenraumklimas in Gebäuden

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2738719A (en) * 1951-08-02 1956-03-20 William J Caldwell Centrifugal nozzle with adjustable outlet vanes
US3999471A (en) * 1975-02-24 1976-12-28 American Air Filter Company, Inc. Filter hood device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2738719A (en) * 1951-08-02 1956-03-20 William J Caldwell Centrifugal nozzle with adjustable outlet vanes
US3999471A (en) * 1975-02-24 1976-12-28 American Air Filter Company, Inc. Filter hood device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3941899A1 (de) * 1989-12-19 1991-06-20 Kessler & Luch Gmbh Luftdurchlass mit filter
EP0435000A2 (fr) * 1989-12-19 1991-07-03 Kesslertech Gmbh Sortie d'air avec filtre
EP0435000A3 (en) * 1989-12-19 1991-10-09 Kessler & Luch Gmbh Air outlet with filter
EP0490135A2 (fr) * 1990-12-11 1992-06-17 HumanAir Patentverwertungsgesellschaft mbH Dispositif pour introduire de l'air dans des locaux et salles et méthode pour sa mise en service
EP0490135A3 (en) * 1990-12-11 1993-06-09 Kessler & Luch Gmbh Device for introduction of air in rooms and halls and method for this operation
BE1018259A5 (fr) * 2006-10-03 2010-08-03 Halton Oy Dispositif terminal d'ecoulement d'air.

Also Published As

Publication number Publication date
ES2026878T3 (es) 1992-05-16
DE8626929U1 (de) 1987-11-05
EP0263333B1 (fr) 1991-10-16
GR3003464T3 (en) 1993-02-17
EP0263333A3 (en) 1989-03-08
DE3773826D1 (de) 1991-11-21
ATE68584T1 (de) 1991-11-15

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