EP0922912A2 - Sortie d'air de ventilation - Google Patents

Sortie d'air de ventilation Download PDF

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Publication number
EP0922912A2
EP0922912A2 EP98204152A EP98204152A EP0922912A2 EP 0922912 A2 EP0922912 A2 EP 0922912A2 EP 98204152 A EP98204152 A EP 98204152A EP 98204152 A EP98204152 A EP 98204152A EP 0922912 A2 EP0922912 A2 EP 0922912A2
Authority
EP
European Patent Office
Prior art keywords
ventilating fan
ventilation
discharge pipe
discharge
passage
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
EP98204152A
Other languages
German (de)
English (en)
Other versions
EP0922912A3 (fr
EP0922912B1 (fr
Inventor
Paul Isodore D'hond
Cornelis Johannes Brugmans
Caspar Ludovicus Johannes Steenhuysen
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.)
Ubbink BV
Original Assignee
Ubbink Nederland BV
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 Ubbink Nederland BV filed Critical Ubbink Nederland BV
Publication of EP0922912A2 publication Critical patent/EP0922912A2/fr
Publication of EP0922912A3 publication Critical patent/EP0922912A3/fr
Application granted granted Critical
Publication of EP0922912B1 publication Critical patent/EP0922912B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • F24F7/00—Ventilation
    • F24F7/02—Roof ventilation
    • F24F7/025—Roof ventilation with forced air circulation by means of a built-in ventilator

Definitions

  • the invention relates to a ventilation discharge for a room in a house, comprising a discharge pipe extending from an inlet situated in the room to an outlet situated out on the roof, which discharge pipe is provided with draught promoting means in or near the outlet.
  • the object of the invention is to improve on this and to that end the invention provides a ventilation discharge as described in the preamble, comprising a ventilating fan which is placed or can be placed in the discharge pipe, at a distance from the inlet.
  • the ventilating fan will exert little inflow resistance on the air approaching through the portion of the discharge pipe which is situated upstream.
  • the capacity of the ventilator fan and because of it the space it takes up and the sound produced as a result of it can therefore be kept limited.
  • the invention provides a ventilation discharge of the kind mentioned in the preamble, in which a ventilating fan has been placed in the discharge pipe, downstream of a straight length of pipe thereof.
  • the ventilating fan is situated at ample distance from the inlet, such as over half a meter.
  • An advantageous arrangement is one in which the ventilating fan is situated near the outlet, below the roof. The length of pipe on the approach side can then be as long as possible.
  • the ventilation discharge is provided with means for switching on the ventilating fan when needed, so that it is only active when necessary and for the rest only the natural draught is used.
  • the capacity of the ventilating fan therefore is only additional, for the bathroom for instance 7 l/sec and for the kitchen 14 l/sec. As a result the consumption of energy can remain low, and the production of noise need not take place longer than necessary.
  • the switch means can be active in various ways. It is known to couple the switch means to a light switch for the room concerned. However, it can also be advantageous to couple the switch means to a moisture content sensor, a movement sensor or CO 2 content sensor.
  • the ventilating fan can - with the appropriate housing - be accommodated in a fixed manner in or at the discharge pipe. In that case it is preferable that means are present to take out or giving access to the ventilating fan for doing service work.
  • the ventilating fan can with the appropriate housing be arranged in the passage of the discharge pipe.
  • the ventilating fan is adapted here to let air through by natural draught when switched off, preferably with a flow of 7 l/sec.
  • this can be realised by a ventilating fan with a free-run position with very low resistance against rotation, in which case the naturally rising air will have the ventilating fan rotate during passage there along, and/or with blades which leave interspaces of such width that the air can flow passed it without much resistance being encountered.
  • the ventilating fan is positioned in a passage which is parallel to a free passage in the discharge pipe.
  • the passage of the ventilating fan can be situated next to the free passage.
  • the ventilating fan can be a radial ventilating fan with an axis of rotation which is transverse to the centre line of the discharge pipe, that is an axis of rotation which is directed radially or tangentially with respect to the discharge pipe.
  • the ventilating fan can be an axial ventilating fan with an axis of rotation which is parallel to the centre line of the discharge pipe.
  • the passage of the ventilating fan can also be placed within the free passage, the discharge pipe preferably having an enlarged cross section at that location.
  • the ventilating fan can in an advantageous manner be accommodated in the discharge pipe like a cassette, to which end the discharge pipe has been provided with suitable access means and support means.
  • the ventilation discharge is provided with receiving means for keeping the ventilating fan outside of the passage of the discharge pipe, and with means for moving the ventilating fan from the receiving means to the passage and back again.
  • the ventilating fan cannot in any case impede natural ventilation then.
  • FIG 1 a house 1 is shown in which a kitchen 2, a bathroom 3, and a toilet 4 are the rooms in which periodically extra moisture is generated which should be discharged.
  • a kitchen 2 a bathroom 3
  • a toilet 4 are the rooms in which periodically extra moisture is generated which should be discharged.
  • separate ventilation discharges 5, 6 and 7 are provided, which extend from the room concerned through the roof 8, to the outside.
  • the ventilation discharges 5, 6 and 7 have a discharge pipe 9, 10 and 11 respectively with an inlet 12, 13 and 14 and an outlet 15, 16 and 17.
  • the pipes 9, 10 and 11, including the inlets and outlets are formed with a low flow resistance, such as the Multivent® mentioned earlier, and are therefore suitable for natural ventilating the rooms for discharging the normal moisture charge.
  • the pipe diameter here is 125 mm.
  • a ventilating fan 18, 19 and 20 respectively which discharges to the outside is arranged near the outlet but below the roof in the attic space.
  • these ventilating fans the discharge capacity is increased at the moment that this is necessary: incase of additional moisture charge as a result of for instance showering or cooking.
  • Switching on the ventilating fan can be coupled to a light switch (toilet, bathroom) a temperature switch (over a stove), air humidity sensors or CO 2 sensors. Movement detectors can also be thought of, in particular for toilets.
  • the ventilating fan can be controlled by means of electricity coming from PV-cells on the roof.
  • the ventilating fans 18, 19 and 20, just like the discharge pipes 5, 6 and 7 (except in pipe length) can be similar to each other in shape and dimensions, so that the system can be used universally.
  • the capacity is then adapted to 7 l/sec without ventilating fan and 21 l/sec with ventilating fan.
  • FIG. 2A A first possible embodiment of the ventilation discharge according to the invention is shown in figures 2, 2A, 2B and 2C, in which in the discharge pipe 6 is present portion 21a which is enlarging in the direction D, a circle-cylindrical portion 21b and a tapering portion 21c.
  • the cylindrical portion 21b is limited below and on top by circumferential edges 55a (figure 2A) and has an opening 54 in which/from which an axial ventilating fan 22 can be slid in/slid out of (directions X).
  • the ventilating fan 22 in this example is type 4650 N of the brand Papst, of the company Vibo.
  • the ventilating fan 22 is accommodated in cassette 50, and is surrounded by a mass 51 of sound insulating material.
  • the ventilating fan has a circumferential cylinder wall 52.
  • the ventilating fan 22 comprises an axle 22a with a motor and a number of blades 22b which leave spaces in between them both in axial and in circumferential direction, as well as number of placing arms 53, which are fixed to the casing 52 and keep the motor and the axle in their places.
  • the cassette 50 is furthermore provided with a lid 56 for access to the ventilating fan 22.
  • the ventilating fan 22 has a switched on position and a switched off position running free in one direction. When there is no additional moisture charge in the room to be ventilated, the ventilating fan 22 is in the free-run position and the air can escape upwards by natural draught in the direction D, between the blades in the direction E. The ventilating fan 22 could possibly rotate freely here, driven by the upward flow of air. When additional ventilation capacity is required in connection with formation of moisture in the room to be ventilated the ventilation fan is switched on to enlarge the flow in the direction D.
  • the ventilating fan 22 fills the entire passage in the discharge pipe 6 at the location of the cylinder portion 21b
  • figure 3 an embodiment is shown in which the enlarged portion 21 is enlarged extra with respect to the embodiment of figure 2, and in which at radial inward distance of the cylindrical wall 21b a further cylindrical wall 24 is placed, which with the cylindrical wall 21b determines a vertical annular passage 25.
  • the wall 25 surrounds the ventilating fan 22 and is attached to the wall 21b with low flow resistance connection parts.
  • FIG 3 there is question of a concentric arrangement of the passage of the ventilating fan 22 and the free passage 25, whereas in figure 4 an embodiment is shown in which they are situated next to each other.
  • the enlarged portion is constructed somewhat box-shaped here, in which the ventilating fan 22 is surrounded by a portion of the wall 21 and a partition wall 24 dividing the inner space in two parts.
  • the ventilating fan 22 is surrounded by a portion of the wall 21 and a partition wall 24 dividing the inner space in two parts.
  • FIG. 5A a circle-cylindrical wall 124 has been placed in a concentric manner within the wall portion 121.
  • the annular space 125 defined between both walls is closed off by an annular circumferential cross bulkhead 126.
  • a radial ventilating fan 122 is placed in ventilating fan casing 130. When the ventilating fan is switched off the air can flow upwards naturally in the direction D.
  • FIG. 6 An alternative embodiment is shown in figure 6.
  • the radial ventilating fan 222 is placed such that the axis of rotation is more or less tangential to the radial of the discharge pipe 206.
  • the ventilating fan 222 When the ventilating fan 222 is switched on the air is sucked in via the pipe 233, in the direction F. This air is discharged by the ventilating fan 222 (F1) via outlet 234.
  • the outlet 234 which is streamlined in downward direction, a free passage is kept free for natural ventilation in the direction D.
  • the assembly of inlet, outlet and ventilating fan 222, 234 and 235 can be removed as a unit in connection with cleaning.
  • Figure 7 shows a further alternative of an embodiment of a radial ventilating fan which is situated more or less tangential.
  • the radial ventilating fan 222' here is placed more to the inside and has an outlet 234' which placed in the centre in the discharge pipe 206'.
  • An eccentric wall portion 236 ensures the guiding of air until in the ventilating fan 222' and for receiving at least a part of the ventilating fan.
  • FIG 8 an embodiment is shown in which the radial ventilating fan 322 is placed concentric in an enlarged wall portion 321.
  • the radial ventilating fan 322 is surrounded by a circumferential wall 340, which deflects the blown out air upwards, where the air is guided by truncated conical circumferential wall 341 at the outside and by the conical wall 342 at the inside.
  • the circumferential wall 340 is formed in order to offer as little resistance as possible to the free flow D.
  • the blades of the radial ventilating fan here are preferably curved backwards.
  • FIG. 9A and 9B an embodiment with an axial ventilating fan 422 is shown, which can be accommodated in the switched-off position in chamber 450 integrally formed with the pipe 406, in order to permit free flow in the direction D, but when additional discharge capacity is wanted can be tilted in the passage in the pipe 406 to urge air up in the direction F.
  • the capacity of the ventilating fan depends on the fact whether there is question of a permanent free passage next to the ventilating fan or not.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Ventilation (AREA)
  • Building Environments (AREA)
EP98204152A 1997-12-10 1998-12-10 Sortie d'air de ventilation Expired - Lifetime EP0922912B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1007761 1997-12-10
NL1007761 1997-12-10

Publications (3)

Publication Number Publication Date
EP0922912A2 true EP0922912A2 (fr) 1999-06-16
EP0922912A3 EP0922912A3 (fr) 2001-04-25
EP0922912B1 EP0922912B1 (fr) 2006-09-13

Family

ID=19766165

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98204152A Expired - Lifetime EP0922912B1 (fr) 1997-12-10 1998-12-10 Sortie d'air de ventilation

Country Status (2)

Country Link
EP (1) EP0922912B1 (fr)
DE (1) DE69835867D1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR751443A (fr) * 1932-05-28 1933-09-04 Aerodyne Perfectionnements aux dispositifs de ventilation et d'aération
US2569319A (en) * 1948-07-06 1951-09-25 Oliver J Krug Ventilating apparatus
US2800849A (en) * 1955-04-20 1957-07-30 Nutone Inc Ventilator unit
DE3219453A1 (de) * 1982-05-24 1983-11-24 Josef Dipl.-Ing. 7758 Meersburg Mollerus Vorrichtung mit einem geblaese
EP0404615A1 (fr) * 1989-05-30 1990-12-27 André Amphoux Dispositif de ventilation mixte pour une habitation
US5209697A (en) * 1992-02-10 1993-05-11 Hurst Donald P Blower system for a duct

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR751443A (fr) * 1932-05-28 1933-09-04 Aerodyne Perfectionnements aux dispositifs de ventilation et d'aération
US2569319A (en) * 1948-07-06 1951-09-25 Oliver J Krug Ventilating apparatus
US2800849A (en) * 1955-04-20 1957-07-30 Nutone Inc Ventilator unit
DE3219453A1 (de) * 1982-05-24 1983-11-24 Josef Dipl.-Ing. 7758 Meersburg Mollerus Vorrichtung mit einem geblaese
EP0404615A1 (fr) * 1989-05-30 1990-12-27 André Amphoux Dispositif de ventilation mixte pour une habitation
US5209697A (en) * 1992-02-10 1993-05-11 Hurst Donald P Blower system for a duct

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
"EXTRACTEURS HELICOCENTRIFUGES" REVUE PRATIQUE DU FROID ET DU CONDITIONNEMENT D'AIR,FR,PYC EDITION S.A. PARIS, no. 724, 28 February 1991 (1991-02-28), page 58 XP000177631 ISSN: 0370-6699 *

Also Published As

Publication number Publication date
EP0922912A3 (fr) 2001-04-25
DE69835867D1 (de) 2006-10-26
EP0922912B1 (fr) 2006-09-13

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