WO1998058138A1 - Agencement d'egalisation du flux d'air de ventilation - Google Patents

Agencement d'egalisation du flux d'air de ventilation Download PDF

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Publication number
WO1998058138A1
WO1998058138A1 PCT/SE1998/001151 SE9801151W WO9858138A1 WO 1998058138 A1 WO1998058138 A1 WO 1998058138A1 SE 9801151 W SE9801151 W SE 9801151W WO 9858138 A1 WO9858138 A1 WO 9858138A1
Authority
WO
WIPO (PCT)
Prior art keywords
air
wall
chamber
membrane
layer
Prior art date
Application number
PCT/SE1998/001151
Other languages
English (en)
Inventor
George Wegler
Original Assignee
George Wegler
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 George Wegler filed Critical George Wegler
Priority to AU80504/98A priority Critical patent/AU8050498A/en
Priority to EP98928794A priority patent/EP1040235A1/fr
Publication of WO1998058138A1 publication Critical patent/WO1998058138A1/fr

Links

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
    • F24F13/068—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser formed as perforated walls, ceilings or floors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
    • F24F2003/1435—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification comprising semi-permeable membrane

Definitions

  • the present invention relates to a ventilation arrangement of the kind defined in the preamble of Claim 1.
  • SE-B-403 640 teaches a building construction of the kind included by the preamble of Claim 1.
  • the known arrangement utilises the thermal insulation in the exterior wall/roof to recover heat and to filter outdoor air, which is sucked into the building through the layer of thermal insulating material.
  • air is drawn by suction into the building interior through the layer of heat-insulating material at a very low rate of flow, an exchange of heat takes place.
  • cold outdoor air passes through the insulation on its way into the building in the cold period of the year, it cools down the thermal-energy carrying insulation fibres, wherewith the outdoor air is heated and the heat returned back into the building. Even a thin thermal insulation layer will provide a highly effective heat-insulating effect.
  • the thermal insulating layer will also engender an effective filtering effect, such that the through-passing air will be practically particle-free. Because the air is sucked in through a large thermal insulation area, loading of the thermal insulation with particles separated from the air sucked through the insulation will be negligible in light of the practical life span of the building.
  • an object of the present invention is to provide a ventilation system with which the aforesaid problem is eliminated completely or partially.
  • the aforesaid problem can be limited significantly by arranging in the air distribution chamber between its first and its second wall and in spaced relationship therewith an impervious membrane which is generally plane-parallel with said first and second walls, wherein the membrane leaves an airflow gap between an substantial part of its perimeter and the perimeter wall of the distribution chamber, and wherein the outlet opening is preferably disposed centrally of the membrane in the plane of the second wall.
  • the distribution chamber may be filled-out with at least two groups of battens, with the battens of each group being mutually parallel, while intersecting the battens of adjacent groups.
  • the membrane is placed conveniently between two mutually adjacent groups of battens.
  • the membrane may also be suspended in an undulating fashion from the upper joist layer and optionally supported by the lower joist layer.
  • the opening is suitably placed between two mutually adjacent battens of the group of battens that border on the second wall of the chamber.
  • air can be taken out through several openings in the second wall.
  • an outlet opening may be provided through the second wall in each compartment between two mutually adjacent battens in that group of battens that borders on said second wall, wherein an air receiving box connects to the inner surface of the second wall, which may form a ceiling plate in a living space in the building.
  • the air receiving box thus receives the combined airflow from all openings in the second wall, and the filtered and preheated air can be transported from said box to selected locations in the building, through appropriate channels and passageways that include a blower for blowing the collected outdoor air to desired locations.
  • the invention can be applied equally as well in the walls of a building, in the same way as that described above, when desiring to conduct outdoor air through the wall insulation instead of through the roof insulation.
  • Examples of applications are multistorey apartment blocks with separate apartments in the plane.
  • the invention is applied in the manner described in the above paragraph, and measures are taken to prevent a direct through- flow of air at the openings.
  • the invention has been described above with reference to operating conditions in wintertime, when heat is delivered to the building and when attempts are made to reduce the building heating requirements .
  • Fig. 1 is a schematic exploded view in perspective of part of the roof of a building which incorporates an inventive arrangement for the intake of outdoor air.
  • Fig. 1A is a schematic sectional view taken immediately beneath the roof insulation 10 under an air-permeable resistance layer 1 (corresponds to the first wall) .
  • the section also includes roof trusses 11.
  • Fig. IB is a schematic, perspective sectional view taken in the upper batten layer 12 beneath an air distributing membrane 2.
  • Fig. 1C is a perspective sectional view taken in the lower batten layer 13 beneath the sealing layer 3 (the second wall) having outlet openings 6.
  • Fig. ID is a schematic sectional view in perspective of a collecting box 5.
  • Fig. IE is a schematic sectional view in perspective of a collecting box 5 above the collecting-box bottom 4.
  • Fig. IF is a schematic sectional view in perspective taken through the bottom 4 of the collecting box 5.
  • Fig. 2 shows vertical sections A-A and B-B of the invention with a collecting box mounted in the wet-room of a building having circulating interior air.
  • the building is shown in Figs. 2 to 5 inclusive.
  • Fig. 3 is a schematic sectional view taken in the upper batten layer 12 above an air distributing membrane 2.
  • Fig. 4 is a schematic sectional view taken in the lower batten layer 13 above the sealing layer 3 with through-flow openings 6.
  • Fig. 5 is a schematic sectional view taken through the collecting box above the collecting-box bottom 4.
  • Fig. 1 is a schematic exploded view in perspective of part of the roof of a building that includes an inventive arrangement for the intake of outdoor air.
  • the illustrated roof insulation 10 is of a known porous nature which allows outdoor air to seep slowly into the building interior in uniform distribution, such as supply air to the rooms and spaces in the building, as a result of a subpressure acting within the building or generated by a supply-air fan placed within the collecting box.
  • the insulation 10 may be provided with an air-permeable pressure equalising layer 1, for instance a fabric material that has a resistance such as to distribute the air generally uniformly over the insulation area.
  • an air-impermeable, air- distribution membrane 2 for instance a flexible plastic foil, having an extension aimed at spreading the air sucked-in from the opening 6 to the outer extremities of the membrane.
  • the air-impermeable air-distribution membrane 2 may also be suspended in an undulating fashion from the upper joist layer and optionally supported from beneath by the lower joist layer. Corridors (compartments or gaps) in which the outdoor air moves in a direction towards the edges of the membrane are formed above the membrane together with the battens 12 and the permeable resistance layer 1 in the region of the extension of the membrane .
  • Corridors are also formed between the battens 13 and the sealing layer 3, beneath the membrane in the illustrated example. Outdoor air moves in these corridors in 90-degree (or 270- degree) directions relative to the direction over the membrane towards the outlet opening 6.
  • an impervious collecting box 5 is mounted beneath the openings 6. This also includes a collection opening 7 (or several) in one of the box walls, connected to the channel 9, or a collection opening 7' (or several) in the box bottom 4.
  • the illustrated example also includes an air supply fan 8 fitted with a silencer and placed in the collection box in connection with the channel 9 through the collection opening 7.
  • Fig. 1A is a sectional view taken immediately beneath the roof insulation 10 under the air-permeable resistance layer 1. The Figure also shows the roof trusses 11.
  • Fig. IB is a sectional view taken in the uppermost (the first) batten layer 12 beneath the air distribution membrane 2.
  • the upper batten layer 12 is fastened along and to the roof trusses in the illustrated case.
  • Fig. 1C is a sectional view taken in the lower batten layer 13 beneath the second (the lower) wall 3 having two outlet openings 6.
  • Fig. ID is a sectional view taken through a collection box 5 immediately above the collection-box bottom 4.
  • the collection box covers all outlet openings 6.
  • Fig. IE is a sectional view taken through the collection box 5.
  • Mounted in the collection box is a fan 8 for further transportation into the living spaces, via the channel 9.
  • Fig. IF is a sectional view taken through the collection box, the bottom 4 of which includes an outlet opening 7'.
  • Figs. 2-5 show the invention applied in a two-storey building with circulating indoor air.
  • Fig. 2 is a vertical sectional view taken on the line A-A in Fig. 5 and shows the collecting box disposed in the wet room in the upper storey of the building.
  • Fig. 3 is a sectional view taken in the uppermost batten layer 12 above the air distribution membrane 2.
  • the batten layer 12 is fastened along and to the roof trusses in the illustrated case.
  • the battens 12 may be doubled so as to better support the roof insulation 10.
  • the battens positioned between the roof trusses are then supported by the underlying batten layer 13.
  • the layer 12 may be commenced at right angles to the roof trusses or at an angle of, e.g., 45 degrees thereto, and the lower layer 13 orientated at, e.g., an angle of 90 degrees to the upper layer 12.
  • Fig. 4 is a sectional view taken in the lower batten layer 13 above the sealing layer 3 having five outlet openings 6.
  • Fig. 5 is a sectional view taken through the collection box immediately above the collection-box bottom 4.
  • the collection box covers all through-flow openings 6 and is delimited longitudinally by the walls of the wet room.
  • the suction area is also far greater than when located immediately above the opening 6, which would have been the case if the collection box was used immediately beneath the sealing layer 3.
  • Supply air to the building is taken in through a channel system 9 that communicates with the surroundings in a conventional manner, wherein the supply air is preferably either led into supply air channels leading to a fan unit and through a heating arrangement and further channelway passing through the floor structure/ floor structures, or on other ways into the utilitarian spaces.

Landscapes

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

Abstract

L'invention concerne un agencement destiné à faire entrer de l'air de ventilation dans un immeuble. L'air est introduit dans l'immeuble par un mur extérieur comprenant une couche d'isolation thermique (10) perméable à l'air. La surface utile de la couche d'isolation thermique forme une première paroi (1) d'une chambre de distribution d'air comprenant une seconde paroi (3), laquelle est, d'une manière générale, parallèle à la première paroi. La chambre comprend également une paroi périmétrique définissant la chambre ainsi que lesdites première et seconde parois. La seconde paroi comprend une ouverture de sortie (6) occupant une certaine partie de la surface de la seconde paroi. La chambre de distribution comprend une membrane (2) de distribution d'air s'étendant, d'une manière générale, parallèlement auxdites première et seconde parois (1 et 3), tout en étant espacée, et laquelle recouvre l'ouverture de sortie (6) dans le plan de la seconde paroi. On fait s'écouler la majeure partie de l'air passant dans la chambre, d'une manière générale, parallèlement à la surface de ladite membrane (2) dans une direction allant vers la paroi périmétrique de la chambre, puis on le dévie afin qu'il s'écoule vers ladite ouverture de sortie et hors de celle-ci.
PCT/SE1998/001151 1997-06-17 1998-06-16 Agencement d'egalisation du flux d'air de ventilation WO1998058138A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU80504/98A AU8050498A (en) 1997-06-17 1998-06-16 An arrangement for equalising the flow of ventilation air
EP98928794A EP1040235A1 (fr) 1997-06-17 1998-06-16 Agencement d'egalisation du flux d'air de ventilation

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9702325A SE9702325D0 (sv) 1997-06-17 1997-06-17 Anordning för utjämning av ventilationsflöde
SE9702325-3 1997-06-17

Publications (1)

Publication Number Publication Date
WO1998058138A1 true WO1998058138A1 (fr) 1998-12-23

Family

ID=20407420

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1998/001151 WO1998058138A1 (fr) 1997-06-17 1998-06-16 Agencement d'egalisation du flux d'air de ventilation

Country Status (4)

Country Link
EP (1) EP1040235A1 (fr)
AU (1) AU8050498A (fr)
SE (1) SE9702325D0 (fr)
WO (1) WO1998058138A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE300297B (fr) * 1965-05-31 1968-04-22 T Thoren
US4114334A (en) * 1976-06-24 1978-09-19 Thoren Torgny A Building component
FR2432580A1 (fr) * 1978-03-07 1980-02-29 Ardorel Ets Procede et revetement pour isoler thermiquement et proteger une construction

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE300297B (fr) * 1965-05-31 1968-04-22 T Thoren
US4114334A (en) * 1976-06-24 1978-09-19 Thoren Torgny A Building component
FR2432580A1 (fr) * 1978-03-07 1980-02-29 Ardorel Ets Procede et revetement pour isoler thermiquement et proteger une construction

Also Published As

Publication number Publication date
AU8050498A (en) 1999-01-04
EP1040235A1 (fr) 2000-10-04
SE9702325D0 (sv) 1997-06-17

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