EP0045351A2 - Volet anti-retour pour conduits à gaz rectangulaires - Google Patents

Volet anti-retour pour conduits à gaz rectangulaires Download PDF

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Publication number
EP0045351A2
EP0045351A2 EP81103301A EP81103301A EP0045351A2 EP 0045351 A2 EP0045351 A2 EP 0045351A2 EP 81103301 A EP81103301 A EP 81103301A EP 81103301 A EP81103301 A EP 81103301A EP 0045351 A2 EP0045351 A2 EP 0045351A2
Authority
EP
European Patent Office
Prior art keywords
flap
backflow
frame
ventilation
der
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
EP81103301A
Other languages
German (de)
English (en)
Other versions
EP0045351B1 (fr
EP0045351A3 (en
Inventor
Hans-Joachim Naber
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.)
Naber and Co KG
Original Assignee
Naber and Co 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 Naber and Co KG filed Critical Naber and Co KG
Publication of EP0045351A2 publication Critical patent/EP0045351A2/fr
Publication of EP0045351A3 publication Critical patent/EP0045351A3/de
Application granted granted Critical
Publication of EP0045351B1 publication Critical patent/EP0045351B1/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

Definitions

  • the invention relates to a backflow flap according to the preamble of claim 1.
  • Such backflow flaps were previously attached to the ventilation channels as individual parts. They were often located on the outside of the ventilation channels, i.e. generally attached to the outer wall of the building in the form of a plurality of flaps arranged one below the other. These flaps were exposed to weather and wind and caused wind noise. Depending on the wind, they were also opened a slot so that drafts penetrated inwards and the intended effect of preventing a backflow against the ventilation flow was not achieved. Such backflow flaps were also unsuitable for preventing insects from entering the building. On the other hand, it was not possible to install fine-meshed insect screens after the backflow flaps forming the outer end of the ventilation channels.
  • backflow flaps For many purposes, it has so far not been possible to attach backflow flaps. This applies in particular to various distribution ducts, for example Y distributors or trousers, cross distributors, etc. In terms of production, it has so far been practically impossible or only possible with great effort to provide backflow flaps in the individual supply air and exhaust air ducts. As a result, the air streams were mixed and undesirable exhaust gases were often directed to where they should not be directed. This fact has also led to strict building regulations regarding the introduction of exhaust gases from different sources into a common ventilation chimney.
  • flat duct systems which are mainly used as ventilation ducts in extractor hoods, clothes dryers and small ventilation systems as well as small ventilation systems.
  • Such flat channels are usually about 7 to 20 cm wide and only 3 to 15 cm high. The same applies to use in flat, rectangular, flexible hoses that are used for the same purposes.
  • the invention has for its object to design a backflow valve according to the preamble of claim 1 so that it can be used as an insert in different types of ventilation channels and at different depths is.
  • Such a backflow flap can thus be inserted into any ventilation channel. If, for example, it is inserted into the outer opening of a ventilation duct attached to an outer wall of the building, the individual flaps are arranged in the interior of the frame in a manner protected from wind and weather. Rattling is avoided, as is weather impairment. It is easily possible to install an insect screen on the outer wall even after the backflow flap.
  • the backflow flap according to the invention can be inserted as far as required into the ventilation channels. If, for example, the backflow flap is in the outermost position under unfavorable wind conditions, it will still rattle the flap and thus also the penetration of outside air into the interior of the building, this can easily be remedied by moving the backflow flap a little further towards the interior of the building.
  • the backflow flap according to the subject of the invention can be used particularly advantageously in various distribution channels, for example Y-shaped distribution channels.
  • distribution channels are usually made of sheet metal or plastic, without the possibility of attaching backflow flaps to the respective flow-side ends of the branch channels, so that undesired mixing of the individual air streams resulted.
  • the lower inside of the frame is inclined slightly downward downstream. The purpose of this is to ensure that any liquids that may come into contact with the backflow flap from the outside or condensate water formed thereon are drained off to the outside. It is thus possible to achieve further advantages with the object of the invention the installation of stacked flaps on the outside wall of the building could not be achieved.
  • Two backflow flaps are expediently arranged one above the other and are articulated on the side walls of the frame.
  • the upper edge of the lower backflow flap can serve as a stop for the free end of the upper backflow flap.
  • the arrangement of two backflow flaps one above the other has proven particularly useful in the usual dimensions of backflow flaps, the width of such flaps being approximately 1 m to 1.5 m and the height approximately 50 cm to 1 m.
  • Metal sheet for example galvanized sheet metal, or plastic such as polypropylene is expediently used as the material for the backflow flap.
  • the backflow flap is generally designated 1. It has a rectangular frame 2. In this frame 2, two flaps 3 and 4 are arranged one above the other. These flaps are hinged to the side walls 6 and 7 of the frame 2.
  • the upper edge 9 of the lower flap 4 also serves as a stop for the free end of the upper flap 3.
  • For the free end of the lower flap 4 serve two stops 8 provided inside the frame 2 as a stop.
  • the direction of flow through the backflow flap is indicated in FIG. 2 by arrows.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Flow Control Members (AREA)
  • Ventilation (AREA)
EP81103301A 1980-08-06 1981-05-02 Volet anti-retour pour conduits à gaz rectangulaires Expired EP0045351B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8021092U 1980-08-06
DE19808021092U DE8021092U1 (de) 1980-08-06 1980-08-06 Rueckstauklappe fuer rechteckige entlueftungskanaele, insbesondere verteilerkanaele oder flachkanaele

Publications (3)

Publication Number Publication Date
EP0045351A2 true EP0045351A2 (fr) 1982-02-10
EP0045351A3 EP0045351A3 (en) 1982-03-31
EP0045351B1 EP0045351B1 (fr) 1985-04-10

Family

ID=6717825

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81103301A Expired EP0045351B1 (fr) 1980-08-06 1981-05-02 Volet anti-retour pour conduits à gaz rectangulaires

Country Status (2)

Country Link
EP (1) EP0045351B1 (fr)
DE (2) DE8021092U1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5360372A (en) * 1989-05-02 1994-11-01 Gpac, Inc. Control system for doors of a negative air pressure enclosure

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1326204A (en) * 1970-08-22 1973-08-08 Bloxvich Lock Stamping Reigisters for ducted warm air heating systems
DE2901877A1 (de) * 1979-01-18 1980-07-31 Meissner & Wurst Verschlussvorrichtung fuer durchtrittsoeffnungen von gasfuehrenden stroemungskanaelen
DE2904320C2 (de) * 1979-02-05 1981-12-17 Kiparski, Heinz, 4390 Gladbeck Mauerkasten zum Anschluß an das Ende eines flachen Lüftungskanals einer Dunstabzugshaube

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5360372A (en) * 1989-05-02 1994-11-01 Gpac, Inc. Control system for doors of a negative air pressure enclosure

Also Published As

Publication number Publication date
EP0045351B1 (fr) 1985-04-10
EP0045351A3 (en) 1982-03-31
DE8021092U1 (de) 1980-11-06
DE3169791D1 (en) 1985-05-15

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