EP0676511B1 - Plafond aérant avec éléments filtre à air incorporés - Google Patents

Plafond aérant avec éléments filtre à air incorporés Download PDF

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Publication number
EP0676511B1
EP0676511B1 EP95200905A EP95200905A EP0676511B1 EP 0676511 B1 EP0676511 B1 EP 0676511B1 EP 95200905 A EP95200905 A EP 95200905A EP 95200905 A EP95200905 A EP 95200905A EP 0676511 B1 EP0676511 B1 EP 0676511B1
Authority
EP
European Patent Office
Prior art keywords
channel
elements
ceiling
channel elements
grease
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
EP95200905A
Other languages
German (de)
English (en)
Other versions
EP0676511A1 (fr
Inventor
Hendrikus Joseph Vianen
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.)
*RANDOLPF BELEGGINGEN B.V.
Original Assignee
Hendrikus Joseph Vianen
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Publication date
Application filed by Hendrikus Joseph Vianen filed Critical Hendrikus Joseph Vianen
Publication of EP0676511A1 publication Critical patent/EP0676511A1/fr
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Anticipated expiration legal-status Critical
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B9/00—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation
    • E04B9/02—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation having means for ventilation or vapour discharge
    • E04B9/023—Ceilings; Construction of ceilings, e.g. false ceilings; Ceiling construction with regard to insulation having means for ventilation or vapour discharge comprising drainage gutters for condensed water or grease
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C15/00—Details
    • F24C15/20—Removing cooking fumes

Definitions

  • the invention relates to a ventilation ceiling, comprising channel elements running at a distance from and parallel to each other, and ceiling panel elements leading with their side edges into said channel elements, the channel elements being in fluid communication with a fluid-collecting element, while the panel elements serve the purpose of extracting grease and/or liquid constituents out of the air, and the channel elements serve the purpose of conveying the extracted grease and liquids to the fluid-collecting element, a fixed supply line for cleaning agents being provided for dispensing cleaning agent into the channels.
  • Such a ventilation ceiling can be found in, for example, the kitchen of a hospital or retirement home.
  • Said ceiling contains air supply and air discharge elements, and possibly also light fittings.
  • the air discharge elements increasingly serve the purpose of removing grease etc. from the extracted air, so that they act as air filter elements.
  • said air discharge elements are designed as double-walled coffers which have supply and discharge openings in the walls and grease extractors disposed in said coffers.
  • DE-A-2949235 discloses, for example, double-curved coffers which are square in top view.
  • Channel parts are detachably disposed below the edges thereof. The idea is to remove those channel parts regularly, in order to clean them.
  • the coffers themselves can be cleaned by removing them from the ceiling and placing them in a dishwasher. Removing the channel parts regularly is troublesome, and is therefore often left undone. In practice, the channel parts are cleaned only when they are full to the brim, and grease and the like is dripping out of them.
  • This system comprises a mobile stock tank with aqueous cleaning agent, a pump and a flexible hose.
  • the idea is to place the outlet of the hose in a channel part by hand, following which aqueous cleaning agent is pumped into said channel part through said hose. It is expected that the cleaning agent will loosen and dissolve the grease and the other constituents in the channel and will take them to the grease-collecting vessel.
  • a ventilation ceiling according to the preamble of claim 1 is described in FR-A-2336985.
  • the known ventilation system comprises curved hollow ceiling panel elements against which fumes and grease can condense.
  • the longitudinal channels extend below the side edges of the panel elements for collecting the grease that drips from the side edges.
  • Spray nozzles are located below the top most part of the curved ceiling panel elements for spraying the inside of these elements with a detergent.
  • the grease on the surface of the ceiling panel elements is dissolved by the detergents and is removed via the channel elements.
  • the known system however has as a disadvantage that the channel elements may be blocked with grease, requiring removal and cleaning by mechanical action. Furthermore, the known channel elements may prevent grease and smoke from reaching the cool ceiling panel elements.
  • the elaborate construction shown in the prior art document is relatively heavy and requires a firm attachment to the ceiling.
  • the object of the invention is to make a further improvement in the solution to the problem of cleaning ventilation ceilings, in particular providing a relative simple and light weight construction wherein blockage of the channel elements is effectively prevented.
  • the ventilation ceiling according to the present invention is characterised in that the width of each channel element is substantially smaller than the distance between the side edges of the ceiling panel elements the fixed supply line comprising a manifold substantially comprising one outlet located at or near the end part of each channel element opposite the fluid-collecting element.
  • the cleaning can be put into operation or ended by one action in each case, for example by opening and closing a shut-off valve element in the supply line.
  • Such action takes relatively little effort, with the result that there is less chance that it will be forgotten.
  • Putting the supply line into operation is preferably regulated automatically, for example by a time switch. Since the channels are relatively narrow, a large surface area of the ceiling panel elements is effective for condensing grease and fumes. Since each channel element is provided with a respective supply for cleaning agents, grease and other deposits can effectively be removed from each channel at regular intervals using relatively small amounts of cleaning agent.
  • the channel elements it is preferable for the channel elements to open out into a common trough, in order to discharge cleaning agent and substances removed from the channel elements to a grease-collecting vessel.
  • the trough is amply dimensioned for processing a volume per unit time which is at least equal to the sum of the volumes to be processed by every channel element in that unit of time.
  • the channel elements and/or the trough element may be clad with a friction-reducing and/or adhesion-reducing material, such as teflon.
  • heated cleaning agent for example at a temperature of approximately 70°C. This can be flushed through the channel elements every 24 hours for, say, 5 minutes.
  • heated cleaning agent for example at a temperature of approximately 70°C.
  • This can be flushed through the channel elements every 24 hours for, say, 5 minutes.
  • the loading of the ventilation system which depends on, for example, the type of kitchen and the type of equipment present in the kitchen, it is possible to flush more frequently and for a longer period in each case, or indeed less frequently and for a shorter period.
  • the person skilled in the art will easily establish an optimum for the frequency and duration of the flushing by carrying out simple experiments.
  • a ventilation ceiling 1 is shown in the drawing, in particular in Fig. 1.
  • Said ceiling is essentially composed of channel elements 2 running virtually horizontally at a distance from and parallel to each other, which elements are bridged by cylinder-segment-shaped panel elements 3, 4.
  • the channel elements are, for example, three metres or more in length.
  • each panel element 3, 4 rests with its side edges on a respective channel element 2.
  • the panel elements 3 are double-walled, as shown in Fig. 3, and are perforated. Air is extracted from the space below the ventilation ceiling through these panel elements 3.
  • the perforations 15 in one wall of the panel elements 3 are staggered relative to those in the other wall.
  • the panel elements 4 are single-walled and unperforated. They do not contribute to the ventilation.
  • the channel elements are connected to a horizontal beam 9, which runs parallel to the trough-shaped elements 7, 8 and which is suspended from wires 10.
  • a light fitting 5 and an air supply element 6 are also accommodated in the ventilation ceiling 1. Both likewise rest with their side edges on respective channel elements 2.
  • the arrangement of the panel elements 3, 4 and the fittings 5 and the air supply elements 6 can be adapted to requirements in each case, and is determined by, for example, the positioning of cookers etc.
  • the ends of the channel elements 2 lead into virtually horizontal, trough-shaped elements 7, 8, and rest on a side wall thereof. These trough-shaped elements 7, 8 are positioned essentially at right angles to the lengthwise direction of the channel elements 2.
  • the channel elements 2 slope down slightly in the direction of the trough 7.
  • the troughs 7 and 8 each have a discharge pipe 14, which is connected to the conventional sewerage system.
  • the troughs 7 and 8 slope down slightly in the direction of the respective discharge pipe 14.
  • each channel element 2 is connected to a respective outlet 13 of a manifold 11 of a fixed pipe 12 for the supply of a cleaning agent.
  • Said pipe 12 accommodates a shut-off valve (not shown), which can be opened with a timer-operated solenoid (not visible).
  • the pipe 12 is connected to the conventional water mains, and runs through a heating element (not shown).
  • a distribution unit (not shown), which is generally commercially available, is also connected to the pipe 12, for mixing a cleaning agent into the tap water.
  • a control panel for programming the flushing can be set up in an easily accessible position in the kitchen.
  • the cleaning agent Due to the fact that the liquid flows gently through the channel elements 2, the cleaning agent has sufficient time to loosen and/or dissolve the greases etc., following which they are entrained with the flow. There is therefore no need for a mechanical action of the liquid, as would be the case with powerful liquid jets. Nor is there any risk of overflowing over the channel elements 2, which are open at the top side. It is sufficient if during the flushing the channel elements are filled no more than halfway up with liquid.
  • the trough 7 is amply dimensioned to collect such a quantity of liquid from all channel elements 2 opening out into it and to discharge said liquid into the sewer. Should a leakage occur in the manifold part 11, the trough 8 will serve as a drip tray, and will consequently prevent flooding.
  • the troughs 7, 8 can be connected to, for example, a water purification system, instead of a sewer.

Claims (5)

  1. Plafond de ventilation (1), comprenant des éléments de canaux (2) s'étendant à une certaine distance les uns des autres et parallèles les uns aux autres, et des éléments de panneaux de plafond (3, 4) conduisant avec leurs bords latéraux jusque dans lesdits éléments de canaux (2), les éléments de canaux étant en communication de fluide avec un élément de collecte de fluide (7), tandis que les éléments de panneaux (3, 4) ont pour but d'extraire les constituants de graisse et/ou de liquide de l'air, et que les éléments de canaux (2) ont pour but de transporter la graisse et les liquides extraits vers l'élément de collecte de fluide, une ligne d'alimentation fixe (11, 12) destinée à des agents de nettoyage étant prévue en vue de distribuer un agent de nettoyage jusque dans les canaux, caractérisé en ce que la largeur de chaque élément de canal (2) est sensiblement plus petite que la distance entre les bords latéraux des éléments de panneaux de plafond (3, 4), la ligne d'alimentation fixe comprenant un collecteur (11) comprenant un orifice de sortie situé au niveau de la partie d'extrémité de chaque élément de canal (2) ou à proximité de celle-ci à l'opposé de l'élément de collecte de fluide (7).
  2. Plafond de ventilation (1) selon la revendication 1, dans lequel un élément de coupure est logé dans la ligne d'alimentation (11, 12) destinée à des agents de nettoyage, lequel élément est relié à un élément de temporisation destiné à ouvrir et à fermer ledit élément de coupure à des moments prédéterminés.
  3. Plafond de ventilation (1) selon la revendication 2, dans lequel l'élément de temporisation est réglé pour maintenir l'élément de coupure ouvert au moins une fois par mois, de préférence une fois par semaine, et en particulier une fois par jour, pendant pas plus d'une heure, en particulier pendant pas plus de dix minutes, et de préférence à un moment où l'espace au-dessus duquel le plafond est adapté n'est pas en utilisation.
  4. Plafond de ventilation (1) selon l'une des revendications précédentes, dans lequel les éléments de canaux (2) débouchent dans un élément de gouttière commun (7) lequel à son tour débouche dans un autre élément de collecte de fluide.
  5. Plafond de ventilation (1) selon la revendication 4, dans lequel l'aire de surface du débit de l'élément de gouttière (7) représente au moins la somme des aires de surface des débits de chaque élément de canal (2) débouchant dans l'élément de gouttière (7).
EP95200905A 1994-04-08 1995-04-10 Plafond aérant avec éléments filtre à air incorporés Expired - Lifetime EP0676511B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL9400562A NL9400562A (nl) 1994-04-08 1994-04-08 Ventilatieplafond met geintegreerde luchtfiltereenheden.
NL9400562 1994-04-08

Publications (2)

Publication Number Publication Date
EP0676511A1 EP0676511A1 (fr) 1995-10-11
EP0676511B1 true EP0676511B1 (fr) 2002-03-13

Family

ID=19864045

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95200905A Expired - Lifetime EP0676511B1 (fr) 1994-04-08 1995-04-10 Plafond aérant avec éléments filtre à air incorporés

Country Status (4)

Country Link
EP (1) EP0676511B1 (fr)
AT (1) ATE214448T1 (fr)
DE (1) DE69525786T2 (fr)
NL (1) NL9400562A (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2407590B (en) * 2003-11-01 2007-03-07 Trevor James Carter A ventilated ceiling or canopy
NL1030551C2 (nl) * 2005-11-29 2007-05-30 Nineva Woerden Beleggingen B V Ventilerend plafond.
DE102015100557A1 (de) * 2015-01-15 2016-07-21 Miele & Cie. Kg Dunstabzugshaube
CN112627424A (zh) * 2020-12-18 2021-04-09 中城建元建设有限公司 一种手术室结构及其施工方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2414573C2 (de) * 1974-03-26 1975-11-06 Paul 6456 Langenselbold Gutermuth Unterdecke zur Abschirmung tragender Decken von Räumen
FR2336985A1 (fr) * 1975-12-31 1977-07-29 Bertucci Albert Dispositif d'evacuation des fumees, vapeurs et graisses particulierement pour cuisine de restaurant ou de collectivite
DE2641708C3 (de) * 1976-09-16 1980-02-21 Paul 6456 Langenselbold Gutermuth Unterdecke, insbesondere für gewerbliche Küchen, Schlachthauser, Waschkuchen u.dgl
DE3145548A1 (de) * 1981-11-17 1983-05-26 GIF Gesellschaft für Ingenieurprojekte Freiburg mbH, 7800 Freiburg "vorrichtung zum be- und/oder entlueften von raeumen"
GB2111189B (en) * 1981-11-27 1985-05-01 Gif Ges Ingenieurprojekte Removing grease and moisture from rooms
DE8419223U1 (de) * 1984-06-27 1984-11-22 Gutermuth Jun., Paul, 6456 Langenselbold Reinigungsgeraet
DE3524928C1 (de) * 1985-07-12 1986-10-09 Heinrich Dipl.-Ing. 6454 Bruchköbel Oetjen Vorrichtung zum Reinigen der Oberseiten von Deckenbauteilen
DE3604659A1 (de) * 1986-02-14 1987-08-20 Dillmann Roland Vorrichtung zur abfuhr von rauch, daempfe oder fette enthaltender luft
DE3622742C1 (de) * 1986-07-07 1988-01-07 Paul Gutermuth Sen Verfahren zum Reinigen von Rinnen
DE4229708C1 (de) * 1992-09-05 1994-04-07 Heinrich W Dipl Ing Oetjen Sammelrinne für eine Lüftungseinrichtung mit Kondensatanfall

Also Published As

Publication number Publication date
NL9400562A (nl) 1995-11-01
EP0676511A1 (fr) 1995-10-11
ATE214448T1 (de) 2002-03-15
DE69525786D1 (de) 2002-04-18
DE69525786T2 (de) 2002-10-02

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