EP3211339B1 - Entrée d'air - Google Patents

Entrée d'air Download PDF

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Publication number
EP3211339B1
EP3211339B1 EP17156582.3A EP17156582A EP3211339B1 EP 3211339 B1 EP3211339 B1 EP 3211339B1 EP 17156582 A EP17156582 A EP 17156582A EP 3211339 B1 EP3211339 B1 EP 3211339B1
Authority
EP
European Patent Office
Prior art keywords
air
intake device
ventilation
casing
ventilation duct
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.)
Active
Application number
EP17156582.3A
Other languages
German (de)
English (en)
Other versions
EP3211339A1 (fr
Inventor
Eero Saikkonen
Pasi PUIKKONEN
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.)
Vilpe Oy
Original Assignee
Vilpe Oy
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Publication date
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Publication of EP3211339A1 publication Critical patent/EP3211339A1/fr
Application granted granted Critical
Publication of EP3211339B1 publication Critical patent/EP3211339B1/fr
Active 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
    • F24F7/00—Ventilation
    • F24F7/02—Roof ventilation
    • 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
    • F24F13/082—Grilles, registers or guards
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2221/00—Details or features not otherwise provided for
    • F24F2221/52—Weather protecting means, e.g. against wind, rain or snow

Definitions

  • the present invention relates to ventilation technology.
  • the invention relates to air-intake devices for a replacement-air system. More specifically, the invention relates to an air-intake device according to the preamble of claim 1.
  • Air-intake devices are widely used in building technology for feeding replacement air to a ventilation system.
  • An air-intake device is a guard at the end of the replacement-air pipe, which connects the replacement-air pipe to the environment and prevents rain, snow, loose dirt, animals, and other external factors from entering the ventilation system.
  • the ventilation openings of air-intake devices are usually short through-holes, which are made at right angles to the side of the air-intake devices' casing. The number of holes is usually kept large, so that air can flow as unrestrictedly as possible.
  • a conventional example of ventilation openings is a grid.
  • an insufficient separation capacity is achieved by using the grid solution, because in windy weather rain can pass through the grid into the replacement-air pipe and from there to the ventilation system.
  • the present invention is intended to create an air-intake device, which protects the replacement-air pipe as well as possible, without, however, increasing flow resistance.
  • Air exhaust vents for exhausting hot air from a building employing natural ventilation have been disclosed in US 2012/184198 A1 and GB 2150686 A . Both publications propose adding a louvre in front of the outlet the air exhaust device so as to prevent rain water from entering the building.
  • Document FI 20135289 discloses an air-intake device comprising an air-intake pipe and a casing, which comprises a jacket element which is arranged to encase the air-intake pipe to protect it from weather conditions according to the preamble of claim 1.
  • KR 2003 0091432 discloses an air-exhaust device comprising an air-exhaust pipe and a casing which comprises a jacket element which is arranged on top of the air-exhaust pipe for covering the air-exhaust pipe from weather conditions.
  • the air-intake device includes a casing, in which there is a jacket element, which encases the air-intake pipe to protect it from weather conditions.
  • the wall of the jacket element comprises one or several ventilation duct(s), which extend(s) from the outer opening formed in the outer surface of the wall to an inner opening formed in the inner surface of the wall, to permit the entry of air from the outside of the casing to in air-intake pipe inside the casing.
  • the ventilation duct is formed to be inclined in respect to the normal of the jacket element such that the outer opening of the ventilation duct is lower that the inner opening, when the air-intake device is installed in a vertical orientation and the air-intake pipe is shaped to open out in such a way that the inner diameter of the air-intake pipe decreases in the flow direction to permit a laminar air flow.
  • the air-intake device 1 comprises mainly a closed structure, in which a casing 100 installed on top of a frame 200 covers an air-intake pipe 300 to protect it from weather conditions and other external factors, such as rubbish and small animals.
  • the casing 100 is generally cylindrical, the upper part being circular and the jacket element 100 widening downwards.
  • the lower part of the casing 100 is a shape-joint to permit a connection with the frame 200.
  • a receiving structure such as a ventilation pipe in the basement of a building.
  • the frame 200 is arranged to act as a boundary surface between the air-intake device 1 and the receiving structure.
  • a number of ventilation ducts 121 are arranged in the jacket element 110 of the casing 100 to permit the entry of air from outside the casing 100 to the air-intake pipe 300 inside the casing 100. Though this function could be implemented by using only one largish ventilation duct (not shown), which would run around an annular casing 100, it is preferable to equip the air-intake device 1 with many smaller ventilation ducts, so that the jacket element 110 of the casing 100 can be made sturdy.
  • the ventilation ducts are particularly arranged in the jacket element 110 by equipping the wall of the jacket element 110 with deflectors 120.
  • the deflectors 120 comprise a group of ventilation ducts 121, which are delimited by outer and inner openings 122, 123 made in the jacket element 110 of the casing 100 and deviating in the vertical direction, as well as the duct surfaces 124 joining them at an inclined angle.
  • the edges of the outer and inner openings 122, 123 are formed into a deflector 120, which protrudes from the wall of the jacket element 110 outwards and inwards to increase the length of the ventilation ducts, so that the air-intake pipe 300 is especially well protected from weather conditions.
  • the length of the ventilation ducts can be the same as the wall thickness of the casing.
  • the deflector 120 increasing the wall thickness can be integrated in the wall, for example, by injection moulding or moulding the casing to form a single piece, or the deflector 120 can be a valve separately attached to the wall (not shown).
  • the ventilation ducts 121 are formed at an inclined angle to the jacket element 110. More specifically, the ventilation ducts 121 are at an inclined angle to the normal of the jacket element 110, in such a way that the outer opening 122 of the ventilation duct 121 is lower than the inner opening 123, when the air-intake device 1 is examined in its vertical installed position.
  • An improved water-separation property is achieved by means of the slanting ventilation duct 121, because the air flow in the ventilation duct 121 contains a vertical component, making it difficult for water to flow inside the casing 100 along the duct surfaces 124 that are oriented to slant upwards.
  • the deflector 120 comprises a group of ventilation ducts 121 arranged on top of each other.
  • the ventilation ducts 121 on top of each other are arranged in such a way that the upper opening 122 of each upper ventilation duct 121 is closer to the centre of the air-intake device that the outer opening 122 of each lower ventilation duct 121, so that the deflector 120 widens downwards, when the air-intake device 1 is examined in its vertical installed position.
  • the air-intake pipe 300 is oriented outwards from the hollow frame 200 and opens like a horn. More specifically, the said air-intake pipe 300 is shaped to open out in such a way that the inner diameter of the air-intake pipe 300 diminishes in the direction of flow, to permit a laminar air flow.
  • the casing 100 is also attached to the frame 200, so that the air-intake pipe 300 is surrounded by the casing 100. It would also be possible to manufacture the frame 300 and the air-intake pipe 300 as a single piece, in which case the casing 100 would be connected directly to the air-intake pipe 300 to encase its mouth opening.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ventilation (AREA)

Claims (4)

  1. Dispositif d'entrée d'air (1) pour alimenter en air neuf le système de ventilation d'un bâtiment, lequel dispositif d'entrée d'air (1) comprend :
    - un tuyau d'entrée d'air (300) et
    - un boîtier (100), qui comprend un élément enveloppe (110), qui est agencé pour recouvrir le tuyau d'entrée d'air (300) pour le protéger de phénomènes météorologiques, caractérisé en ce que :
    - la paroi de cet élément enveloppe (110) comprend un ou plusieurs conduits de ventilation (121), qui s'étendent depuis une ouverture extérieure (122) formée dans la surface extérieure de la paroi jusqu'à une ouverture intérieure (123) formée dans la surface intérieure de la paroi, pour permettre l'arrivée d'air depuis l'extérieur du boîtier (100) jusqu'au tuyau d'entrée d'air (300) à l'intérieur du boîtier (100), en ce que
    - le conduit de ventilation (121) est formé à un angle incliné par rapport à la normale de l'élément enveloppe (110) de sorte que l'ouverture extérieure (122) du conduit de ventilation (121) soit plus basse que l'ouverture intérieure (123), lorsque le dispositif d'entrée d'air (1) est installé dans une orientation verticale, et en ce que
    - le tuyau d'entrée d'air (300) est conçu pour s'évaser de telle sorte que le diamètre intérieur du tuyau d'entrée d'air (300) diminue dans la direction d'écoulement pour permettre un écoulement d'air laminaire.
  2. Dispositif d'entrée d'air (1) selon la revendication 1, qui est en outre caractérisé en ce qu'il comprend une pluralité desdits conduits de ventilation (121).
  3. Dispositif d'entrée d'air (1) selon la revendication 1 ou 2, qui est en outre caractérisé en ce que la paroi de l'élément enveloppe (110) comprend un déflecteur (120), qui contient un conduit ou des conduits de ventilation (121) et lequel déflecteur (120) est configuré pour faire saillie vers l'extérieur ou vers l'intérieur ou les deux depuis la paroi par rapport à la partie de paroi entourant le déflecteur (120), pour augmenter la longueur du conduit ou des conduits de ventilation (121).
  4. Dispositif d'entrée d'air (1) selon la revendication 3, qui est en outre caractérisé en ce qu'il comprend une pluralité de conduits de ventilation (121) les uns au-dessus des autres, lesquels conduits de ventilation superposés sont agencés de telle sorte que l'ouverture extérieure (122) de chaque conduit de ventilation supérieur (121) soit plus proche du centre du dispositif d'entrée d'air (1) que l'ouverture extérieure de chaque conduit de ventilation inférieur, dans lequel le déflecteur (120) s'élargit vers le bas.
EP17156582.3A 2016-02-24 2017-02-17 Entrée d'air Active EP3211339B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FIU20164042U FI11286U1 (fi) 2016-02-24 2016-02-24 Ilmanottolaite

Publications (2)

Publication Number Publication Date
EP3211339A1 EP3211339A1 (fr) 2017-08-30
EP3211339B1 true EP3211339B1 (fr) 2022-08-03

Family

ID=56571080

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17156582.3A Active EP3211339B1 (fr) 2016-02-24 2017-02-17 Entrée d'air

Country Status (5)

Country Link
EP (1) EP3211339B1 (fr)
FI (1) FI11286U1 (fr)
PL (1) PL3211339T3 (fr)
RU (1) RU181122U1 (fr)
UA (1) UA119312U (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030091432A (ko) * 2002-05-28 2003-12-03 권윤길 벤틸레이터
FI20135289A (fi) * 2013-03-26 2014-09-27 Climecon Oy Raitisilmakatos

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU58685A1 (ru) * 1939-07-21 1939-11-30 Д.А. Крыжаговский Многогранный, например, четырехгранный дефлектор
GB8331840D0 (en) * 1983-11-29 1984-01-04 Glendale Eng Ltd Ventilation devices
FI125079B (fi) * 2010-12-09 2015-05-29 Sk Tuote Oy Ilmanvaihtopäätelaitteen lisälaite
US9163846B2 (en) * 2011-01-17 2015-10-20 Vkr Holding A/S Ventilation apparatus arrangements

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20030091432A (ko) * 2002-05-28 2003-12-03 권윤길 벤틸레이터
FI20135289A (fi) * 2013-03-26 2014-09-27 Climecon Oy Raitisilmakatos

Also Published As

Publication number Publication date
EP3211339A1 (fr) 2017-08-30
UA119312U (uk) 2017-09-25
PL3211339T3 (pl) 2022-12-27
RU181122U1 (ru) 2018-07-04
FI11286U1 (fi) 2016-06-15

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