EP0337971B1 - Luftauslass - Google Patents

Luftauslass Download PDF

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Publication number
EP0337971B1
EP0337971B1 EP19890850114 EP89850114A EP0337971B1 EP 0337971 B1 EP0337971 B1 EP 0337971B1 EP 19890850114 EP19890850114 EP 19890850114 EP 89850114 A EP89850114 A EP 89850114A EP 0337971 B1 EP0337971 B1 EP 0337971B1
Authority
EP
European Patent Office
Prior art keywords
air
plates
panel
room
supply 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
EP19890850114
Other languages
English (en)
French (fr)
Other versions
EP0337971A3 (en
EP0337971A2 (de
Inventor
Leif Ingemar Lind
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
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0337971A2 publication Critical patent/EP0337971A2/de
Publication of EP0337971A3 publication Critical patent/EP0337971A3/en
Application granted granted Critical
Publication of EP0337971B1 publication Critical patent/EP0337971B1/de
Anticipated expiration legal-status Critical
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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
    • F24F13/24—Means for preventing or suppressing noise

Definitions

  • the present invention relates to a supply air terminal device of box-like or screen-like configuration and being of the kind set forth in the preamble of Claim 1.
  • Air terminal devices of this kind e.g. such as those marketed under the trade names REPUS and INAIR, are widely used to supply attemperated air to different kinds of working areas, for instance office areas, and also to domestic dwelling areas, in a draught-free manner.
  • the air exiting from such devices has low impulse energy and the device may often be placed in the immediate vicinity of the work area, therewith ensuring that the air in said vicinity will be of a better quality than would otherwise be the case.
  • air from the occupied zone of the room in which the device is located will preferably be admixed with the cold air in appropriate proportions, so as to avoid the occurrence of cold draughts at floor level of the room.
  • a device of the aforesaid kind is known, inter alia, from SE-B-444852, Industriell Arbetshygien.
  • This device includes a plate-like element whose side portions are bent and which is intended for the express purpose of preventing welding sparks from entering the screen-like device, such as to protect the heat sensitive filters in the screen.
  • This plate-like element is not intended to have an air guiding function and the air exiting from the device will still have a laminar flow and therefore will not mix with the ambient air in the vicinity of said device.
  • One object of the invention is to provide an improved supply air terminal device which will be effective in admixing supply air with ambient room air without the use of filters, and which enables attemperated air to be supplied to said room in an effective and draught-free fashion.
  • the exiting air will have a highly advantageous flow pattern. Air is drawn by suction from the room into the eddy current regions or turbulence, due to the sub-pressure generated at the front surface of the plate, and eddy currents from mutually adjacent air outlet slots will coilide with one another. This results in intensive admixing of the colliding air flows and the major part of the impulse energy of the supplied air will dissipate at the same time. As a result, the supply air will be admixed with ambient room air uniformly and effectively, in a draught-free fashion.
  • the admixing zones have an extension of from 1 to 3 dm in front of respective plates.
  • the supply air terminal device is used to blow cool air into a room.
  • the supply air is deflected by the plate through 90° and the turbulence or eddy currents generated thereby are projected through a short distance from the two slots defined by a respective plate.
  • bent plates also impart to the supply air terminal device an aesthetic, attractive outer surface while, at the same time, providing a structurally simple, stable and robust construction.
  • the holes or openings may extend in a row, horizontally across the device, in which case the plates are placed horizontally, the one plate beneath the other.
  • the holes or openings and the plates will extend vertically along the wall of the device. This will enable the plates to be readily secured in the region of the top and bottom panels of the device.
  • a supply air terminal device constructed in accordance with the invention will dampen sound, inter alia, from the fan incorporated in the supply air system. This sound damping effect is obtained as a result of the numerous detours which the air flows are forced to follow, and thereby also be sound waves. This advantage is further enhanced when, in accordance with one embodiment, the inner surfaces of the plates are lined with sound absorbing material.
  • the device may be provided with a lower air supply connector stub, e.g. a floor connector. This will enable the air supply pipe to be placed beneath the floor and therewith out of the room served by the device. For instance, supply air can be conducted to a space beneath said floor and the supply air terminal device may be positioned at any desired location in the room and sealed against the floor.
  • a lower air supply connector stub e.g. a floor connector.
  • each of said holes will preferably be fitted with a nozzle means which has an obliquely extending inlet.
  • the inventive supply air terminal device may have varying configurations and may, for instance, comprise a box of square or elongated rectangular shape, wherewith, for instance, three side panel surfaces will be provided with rows of holes and externally mounted plates. In certain instances, however, all four side surfaces of the device may be provided with holes or, alternatively, solely one side surface or two side surfaces may be perforated.
  • the device may also be configured so as to enable it to be positioned in a corner of a room, and will then preferably have a circle-sector configuration with a front, curved, perforated panel surface.
  • Figure 1 illustrates a box-like supply air terminal device 1, comprising a main body 2 which includes a top panel 3 and a bottom panel 4. Extending between the top and bottom panels are four side panels 5, of which panels, for instance, three are provided with a multiple of air-outlet holes 7 which extend in vertical columns and each of which is provided with a nozzle means 6.
  • the nozzle means 6 have an obliquely extending inlet and are effective in uniformly distributing air supplied to the interior of the device through a connector stub or pipe 8, such that equal quantities of air depart through respective holes 7.
  • each column of holes Spaced forwardly of each column of holes is a plate or profiled section 11, the end parts 11a of which are extended inwardly, or bent, towards respective side panels 5, such as to form two flow slots 12, one on each side of each column of holes.
  • the plates 11 are effective in deflecting air exiting through the holes 7 and in generating eddy currents or regions of turbulence, such that ambient room air will be drawn by suction into contact with the attemperated supply air exiting from the terminal device and intimately admixed with said supply air.
  • the admixing process is particularly thorough, and since eddy currents extending from mutually adjacent slots 12 collide with one another the impulse of the supply air is practically extinguished, so that the mixture of ambient room air and attemperated supply air will be delivered to the room in a draught-free fashion.
  • the inner surfaces of the plates 11, facing the side panels 5, may be lined with sound-absorbing material (not shown), so as to improve the sound damping effect of the terminal device.
  • the connector stub pipe 8 may be inserted into a hole provided in the floor, and the terminal device sealed against the floor surface.
  • the connector stub pipe may be joined to a flexible supply hose or pipe.
  • the inventive supply air terminal device may have the form of a screen having a comparitively large extension in the vertical and width direction relative to thickness.
  • a screen may, for instance, have the dimensions 1 x 0.5 x 0.2 m.
  • the characteristics of the device can be changed, by varying the slot widths.
  • the plates can thus be supported at adjustable distances from respective panels, e.g. in a manner which will enable the slot width to be varied from substantially 0 and 8 mm.
  • Such an arrangement can be used, for instance, to control or regulate temperature.
  • a regulating device for instance a motor (not shown), may be provided for automatically adjusting the slot widths in response to signals from a temperature sensor, via an eccentric arrangement, thereby obtaining an automatic temperature control facility.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Duct Arrangements (AREA)
  • Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)

Claims (4)

  1. Luftauslaß kastenartiger oder schirmartiger Konfiguration, aufweisend einen Haupt-Körperteil, der eine Deckentafel (3), eine Bodentafel (4) und sich zwischen der Deckentafel und der Bodenplatte erstrekkende Seitentafeln (5), von denen wenigstens eine mit einer Vielzahl von Öffnungen (7) versehen ist, durch die durch einen Luftversorgungsanschluß (8) in das Innere der Vorrichung gebrachte Luft in einen Raum ausgegeben wird, und eine Vielzahl von zueinander parallelen Platten (11), die sich nach innen erstreckende oder gebogene Seitenteile (11a) aufweisen, welche die aus der Vorrichtung in den Raum austretende Luft wirksam führen,
       dadurch gekennzeichnet, daß
       die Öffnungen in der wenigstens eine Seitentafel (5) die Form eine Reihe von aufeinanderfolgenden Löchern (7) haben;
       die Platten außerhalb der äußeren Oberfläche der Tafel und in beabstandeter Beziehung hierzu montiert sind, wobei jeweils eine Platte auf der Außenseite jeder Reihe von aufeinanderfolgenden Löchern (7) ist;
       die sich nach Innen erstreckenden oder gebogenen Seitenteile (11a) der Platten mit den Seitentafeln (5) Luftauslaßschlitze (12) bilden, die sich auf jeder Seite einer jeden Reihe von Löchern erstrecken und durch welche ein durch die Platten in Richtung der flachen, rückwärtsliegenden äußeren Oberfläche der Tafel abgelenkter Luftstrom austtrit, wobei damit wirbelstromartige oder ähnliche Turbulenzen damit beim Betrieb gebildet werden;
       die von den gegenseitig nebeneinanderliegenden Schlitzen austretenden Wirbelströme aufeinander auftreffen, wodurch Luft aus dem Raum durch Unterdruck angesaugt und mit dem Luftstrom gemischt wird, so daß der Raum mit einer Mischung aus umgebender Raum luft und Versorgungsluft in ruhiger und zugfreier Weise versorgt wird.
  2. Vorrichtung nach Anspruch 1 dadurch gekennzeichnet, daß die Platten (11) mit schallabsorbierendem Material auf ihrer inneren Oberfläche ausgekleidet sind.
  3. Vorrichtung nach Anspruch 1 oder 2, in der die Platten einstellbar montiert sind, so daß die Breite des Schlitzes eingestellt werden kann, gekennzeichnet, durch eine Einrichtung, beispielweise einen Motor, zur Einstellung der Breite der jeweiligen Schlitze, beipielsweise zwischen im wesentlichen 0 und 8 mm, zum Zwecke der Temperatursteuerung der austretenden Luft.
  4. Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Öffnungen (7) die Form von Düsen (6) haben die in der Tafel (5) vorgesehen sind und einen sich schräg erstreckenden Auslaß haben.
EP19890850114 1988-04-11 1989-04-10 Luftauslass Expired - Lifetime EP0337971B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8801333A SE8801333L (sv) 1988-04-11 1988-04-11 Tilluftsdon
SE8801333 1988-04-11

Publications (3)

Publication Number Publication Date
EP0337971A2 EP0337971A2 (de) 1989-10-18
EP0337971A3 EP0337971A3 (en) 1990-08-22
EP0337971B1 true EP0337971B1 (de) 1993-01-07

Family

ID=20371973

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890850114 Expired - Lifetime EP0337971B1 (de) 1988-04-11 1989-04-10 Luftauslass

Country Status (3)

Country Link
EP (1) EP0337971B1 (de)
DE (1) DE68904226T2 (de)
SE (1) SE8801333L (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106382690A (zh) * 2016-10-25 2017-02-08 美的集团武汉制冷设备有限公司 空调室外机的降噪装置及空调室外机

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9004920U1 (de) * 1990-04-25 1991-08-29 Gutermuth Sen., Paul, 6456 Langenselbold Luftzuführungseinrichtung
DE4334894A1 (de) * 1993-10-13 1995-04-20 Schako Metallwarenfabrik Luftauslaß
SE508846C2 (sv) * 1996-03-11 1998-11-09 Leif Lind Tilluftsdon med hålförsedd vägg vid vilken är anordnad dysor och slitshål

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE7810734L (sv) * 1978-10-13 1980-04-14 Lind Leif Ingemar Flodesfordelningsdon samt tilluftskerm forsedd med sadant don
SE444852B (sv) * 1983-03-16 1986-05-12 Soederhamn Ind Arbetshygien Ab Aggregat for tillforsel av luft till lokaler

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106382690A (zh) * 2016-10-25 2017-02-08 美的集团武汉制冷设备有限公司 空调室外机的降噪装置及空调室外机

Also Published As

Publication number Publication date
EP0337971A3 (en) 1990-08-22
EP0337971A2 (de) 1989-10-18
DE68904226D1 (de) 1993-02-18
SE8801333D0 (sv) 1988-04-11
SE8801333L (sv) 1989-10-12
DE68904226T2 (de) 1993-05-27

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