EP0002701B1 - Grille d'échappement pour une gaine de ventilation - Google Patents

Grille d'échappement pour une gaine de ventilation Download PDF

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Publication number
EP0002701B1
EP0002701B1 EP78101606A EP78101606A EP0002701B1 EP 0002701 B1 EP0002701 B1 EP 0002701B1 EP 78101606 A EP78101606 A EP 78101606A EP 78101606 A EP78101606 A EP 78101606A EP 0002701 B1 EP0002701 B1 EP 0002701B1
Authority
EP
European Patent Office
Prior art keywords
exhaust air
base surface
dome
air conduction
narrow side
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
Application number
EP78101606A
Other languages
German (de)
English (en)
Other versions
EP0002701A1 (fr
Inventor
Hermann Kurrle
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.)
Schako KG
Original Assignee
Schako Metallwarenfabrik Ferdinand Schad KG
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 Schako Metallwarenfabrik Ferdinand Schad KG filed Critical Schako Metallwarenfabrik Ferdinand Schad KG
Publication of EP0002701A1 publication Critical patent/EP0002701A1/fr
Application granted granted Critical
Publication of EP0002701B1 publication Critical patent/EP0002701B1/fr
Expired 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
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F2007/001—Ventilation with exhausting air ducts

Definitions

  • the invention relates to an exhaust air guide device for insertion into a wall opening of an exhaust air duct, which has a guide surface which is arranged above an open rectangular base surface and which extends from a narrow side of the base surface and projects into the interior of the duct, the maximum gradient of which with respect to the base surface over the entire length of the base surface is between 10 ° and is 45 °.
  • exhaust air grilles of various designs are installed directly in the duct wall or attached to the inlet opening of a branch duct.
  • air is sucked into the duct through the exhaust air grille.
  • exhaust ducts e.g. can be very long in large halls or with extraction over several floors, a larger number of exhaust air grilles may have to be installed in the duct wall at suitable intervals. Since suction is to be applied uniformly over all grilles, the grilles are equipped with throttling devices of different designs.
  • the invention has for its object to improve the known exhaust air guiding device so that an introduction of the exhaust air with the least possible disturbance of the flow conditions and low pressure losses is ensured and a favorable throttling of the exhaust air is made possible. This goal is to be achieved with a device that is mass-produced, as simple and easy to adapt as possible.
  • the guide surface is designed as a curved dome surface that forms curved, trapezoidal or polygonal one-piece cut lines in all planes extending perpendicular to the base surface and parallel to the narrow sides thereof, from the two longitudinal sides of the base surface, and that the one end of the base surface of the exhaust air guiding device, which is arranged perpendicular to the base surface, is designed as a throttle surface which has broken out entirely or partially along predetermined breaking lines running parallel to this narrow side.
  • the feature of claim 2 not only facilitates the installation of the guide surface in the opening of an exhaust air duct, but also has a favorable influence on the flow of the exhaust air changing its flow direction inside the guide surface.
  • the features of claim 3 allow a multiple enlargement of the range of the air flow rate to be set by breaking out the throttle surface, in that, with a single size of the guide surface held in stock, larger suction openings are also covered by inserting several identical devices side by side and / or one behind the other in the opening and thus the possible air flow can be changed within wide limits. For this purpose, only a single size of the exhaust dome needs to be made and kept in stock.
  • the set of exhaust air domes inserted into the opening essentially gives the same low disturbance of the flow and pressure conditions as a single exhaust air dome and can also be set in the factory to a desired extraction volume in a very simple manner by more or less extensive breaking out of the throttle surfaces.
  • the dome-shaped exhaust air guide device is inserted into an opening in the exhaust air duct wall in such a way that the dome surface extends obliquely inwards from the duct wall in the direction of flow through the duct and opens downstream.
  • the open rectangular base area of the dome can be installed in the wall opening of the channel either directly or, preferably, via an installation frame adapted to the shape of the channel wall, the installation frame extends around the base area assigned to the dome area essentially perpendicular to this base area and has a fastening edge.
  • the exhaust dome according to the invention is a very easy to manufacture and just as easy to install in the openings of an exhaust duct, which can be adapted in a very simple manner to the respective flow and pressure conditions by, depending on the requirements, more or less parts of the opening of the dome Partially occluding throttle surface are broken away along the predetermined breaking lines.
  • the exhaust air dome according to the invention produces a minimal disturbance of the flow and pressure conditions in the exhaust air duct compared to known devices, and that it is possible, in particular by factory calculation of the pressure losses occurring along the exhaust air duct, at the factory by breaking off parts or also adjust the entire throttle area so that the suction through all exhaust air domes along half is not necessary, boring and hard it is not necessary to carry out tedious and difficult adjustment work on the spot at the individual openings of a built-in exhaust air duct. This complicated work can be eliminated by using the exhaust air domes according to the invention.
  • the production of the exhaust air dome according to the invention is simple, so that it can be carried out in the workshop without special equipment.
  • the computing effort in determining the throttle area size for the individual exhaust air dome is so small that it is not significant compared to the omission of adjustment work for the individual exhaust air openings.
  • the pressure loss occurring at the individual exhaust air domes is extremely small.
  • the exhaust air dome 10 shown in FIG. 1 consists of a domed surface 14 that bulges over an open rectangular base surface 12, which is preferably made of sheet iron, but can also be made of aluminum, brass, V2A steel, plastic or the like.
  • the dome surface 14 starts on the two long sides 16 and 18 and on a narrow side 20 from the base surface 12 and rises uniformly with respect to the base surface starting from the narrow side 20 to the opposite narrow side 22. Above the narrow side 22, it forms a portal-like opening 24 arranged perpendicular to the base surface 12, which can be trapezoidal according to FIG. 5 or 6 or bordered by a curved line according to FIG. 7.
  • openings with polygonal borders can also be used, but the opening should not be rectangular, since this has an adverse effect on the flow and pressure conditions.
  • the opening 24 is surrounded at the top and on the sides by a drawn-in edge 26, to which a throttle surface 28 is expediently fastened via weakened predetermined breaking lines.
  • the throttling surface itself is crossed by several predetermined breaking lines 30 running parallel to the narrow side 22 of the base area, so that the individual fields 1, 2, 3, 4 (see FIG. 9) can be broken out in this order as required.
  • the largest opening of the exhaust air dome is the opening 0, which is only surrounded by the edge 26.
  • the fields 1, 2, 3, 4 of the throttle surface 28 are broken out in order from top to bottom, so that the outlet opening enlarged from top to bottom. in this order there is the advantage that the air emerging through the respectively formed outlet opening can maintain the exit angle determined by the dome surface 14 undeflected.
  • the largest slope of the exhaust air dome 10 with respect to the base surface 12 has the upward-facing cover surface 32. According to FIG. 4, it includes the angle ⁇ with the base surface, which is preferably between 10 ° and 45 ° is between 15 ° and 20 °. In the case of a curved cross section of the dome according to FIG. 7, this greatest slope would only have the generatrix of the dome 10 running along the vertical central plane 34.
  • a mounting frame 36 protruding vertically downward from the base surface 12 is fastened to the dome surface 10 and bears a fastening edge 38 running parallel to the base surface 12.
  • Installation frame 36 and mounting edge 38 can be modified depending on the cross section of the duct and the shape of the exhaust air opening into which the exhaust air dome is to be inserted. As a result, the exhaust air dome according to the invention is very easy to adapt to rectangular, round or other duct shapes.
  • FIG. 1 also shows how, on the one hand, another similar exhaust air dome 10 'is attached to one narrow side 22 and, on the other hand, another similar exhaust air dome 10 "is attached to one long side 16.
  • openings of any size can be made in the duct wall are covered by the exhaust air domes according to the invention, only the installation frame having to be enlarged accordingly, so that it comprises all the intended exhaust air domes. Examples for placing three exhaust air domes 10 'in series and for placing three exhaust air domes 10 "next to one another are shown in FIG. 11 indicated schematically.
  • FIG. 2 also shows in a schematically simplified manner how an exhaust air dome 10 according to the invention with a mounting frame 36 and a fastening edge 38 is inserted into a corresponding opening 40 in a flat wall 42 of an exhaust air duct 46 through which arrow 44 flows.
  • An exhaust air grille 48 known per se, is inserted within the mounting frame and its edge 50 overlaps the fastening edge 38. The attachment of the exhaust air grille 48 is thus in no way hindered by the exhaust air dome according to the invention.
  • dome surface can also be designed such that the cutting lines are polygonal or continuously curved according to FIG. 7.

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)
  • Incineration Of Waste (AREA)
  • Ventilation (AREA)
  • Air Conditioning Control Device (AREA)

Claims (3)

1. Dispositif de guidage d'air pour l'évacuation d'air destiné à être monté dans une ouverture ménagée dans la paroi d'une gaine d'évacuation d'air, comportant une surface de guidage disposée au-dessus d'une surface de base rectangulaire ouverte, à partir d'un petit côté de ladite surface de base et faisant saillie à l'intérieur de la gaîne, et dont l'inclinaison maximale par rapport à la surface de base mesurée sur toute la longueur de cette surface de base est comprise entre 10° et 45°, caractérisé en ce que la surface de guidage se présente sous la forme d'une surface bombée en dôme (14) qui forme dans tous les plans perpendiculaires à la surface de base (12) et parallèles aux petits côtés (20, 22) de cette surface de base des lignes d'intersection continues, de forme courbe, trapézoïdale ou polygonale, partant des deux grands côtés (16, 18) de la surface de base (12), et en ce que la face frontale du dispositif de guidage d'air qui est disposée au-dessus de l'un des petits côtés (22) de la surface de base (12) perpendiculairement à cette surface de base joue le rôle de surface d'étranglement (28) dont la totalité ou des parties peuvent être détachées par rupture suivant des lignes de rupture (30) dirigées parallèlement à ce petit côté (22).
2. Dispositif de guidage pour l'évacuation d'air selon la revendication 1, caractérisé en ce qu'un cadre de montage (36) muni d'un bord de fixation (38) et disposé sensiblement perpendiculairement à la surface de base (12) entoure entièrement la surface de base (12) associée à la surface de dôme (14).
3. Dispositif de guidage pour l'évacuation d'air selon la revendication 1 ou 2, caractérisé en ce que deux ou plusieurs dispositifs de guidage d'air (10', 10") peuvent être montés dans la même orientation les uns contre les autres suivant un grand côté (figure 11) et/ou un petit côté (figure 10) de leur surface de base (12).
EP78101606A 1977-12-21 1978-12-08 Grille d'échappement pour une gaine de ventilation Expired EP0002701B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2757060 1977-12-21
DE2757060A DE2757060C3 (de) 1977-12-21 1977-12-21 Abluftleitvorrichtung

Publications (2)

Publication Number Publication Date
EP0002701A1 EP0002701A1 (fr) 1979-07-11
EP0002701B1 true EP0002701B1 (fr) 1981-04-08

Family

ID=6026771

Family Applications (1)

Application Number Title Priority Date Filing Date
EP78101606A Expired EP0002701B1 (fr) 1977-12-21 1978-12-08 Grille d'échappement pour une gaine de ventilation

Country Status (7)

Country Link
EP (1) EP0002701B1 (fr)
JP (1) JPS5811542B2 (fr)
AT (1) AT385585B (fr)
DE (1) DE2757060C3 (fr)
DK (1) DK571678A (fr)
ES (1) ES476172A1 (fr)
NO (1) NO145852C (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3013147C2 (de) * 1980-04-03 1983-02-17 Siemens AG, 1000 Berlin und 8000 München Abluftleuchte für eine Unterdruckdecke
US5736056A (en) * 1995-04-28 1998-04-07 Betzdearborn Inc. Method for enhancing biocidal activity

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE24919C (de) * F. PELZER in Dortmund Ventilationsvorhänge oder Klappen
DE7043863U (de) * 1971-04-29 Schneider G Zu und Abluftgitter fur lufttechnische Anlagen
FR704959A (fr) * 1930-01-24 1931-05-29 Anciens Etablissements Grouvel Dispositif pour l'introduction de vapeur dans un liquide
DE1779163U (de) * 1958-10-21 1958-12-11 Trox Gmbh Geb Luftgitter mit rechteckigem rahmen.
CH384173A (de) * 1961-02-14 1964-11-15 Keller Alois Abluft-Stutzen
DE1901790U (de) * 1964-07-02 1964-10-08 Schako Ferd Schad G M B H Meta Vorrichtung zur regelung von lufttechnischen anlagen mittels einer schwenkbar angeordteten mengeneinstellzunge.
JPS4830938U (fr) * 1971-08-16 1973-04-16
DE2417582C3 (de) * 1974-04-08 1978-10-05 Eternit Ag, 1000 Berlin Lüftungskanalelement
CH584872A5 (fr) * 1974-10-22 1977-02-15 Luwa Ag

Also Published As

Publication number Publication date
EP0002701A1 (fr) 1979-07-11
DK571678A (da) 1979-06-22
JPS5811542B2 (ja) 1983-03-03
ES476172A1 (es) 1979-05-16
NO784309L (no) 1979-06-22
DE2757060A1 (de) 1979-06-28
ATA902078A (de) 1987-09-15
DE2757060B2 (de) 1980-04-30
DE2757060C3 (de) 1981-12-10
NO145852B (no) 1982-03-01
JPS5494742A (en) 1979-07-26
NO145852C (no) 1982-06-09
AT385585B (de) 1988-04-25

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