EP0324256B1 - Ventilateurs - Google Patents

Ventilateurs Download PDF

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Publication number
EP0324256B1
EP0324256B1 EP88312092A EP88312092A EP0324256B1 EP 0324256 B1 EP0324256 B1 EP 0324256B1 EP 88312092 A EP88312092 A EP 88312092A EP 88312092 A EP88312092 A EP 88312092A EP 0324256 B1 EP0324256 B1 EP 0324256B1
Authority
EP
European Patent Office
Prior art keywords
ventilator
controls
day
electro
open
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 - Lifetime
Application number
EP88312092A
Other languages
German (de)
English (en)
Other versions
EP0324256A2 (fr
EP0324256A3 (en
Inventor
Charles John George Green
Peter Norris Yeatman
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.)
Colt International Holdings AG
Colt International Ltd
Original Assignee
Colt International Holdings AG
Colt International Ltd
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
Priority claimed from GB888800464A external-priority patent/GB8800464D0/en
Priority claimed from GB888800574A external-priority patent/GB8800574D0/en
Priority claimed from GB888811793A external-priority patent/GB8811793D0/en
Priority claimed from GB8823596A external-priority patent/GB2208094A/en
Application filed by Colt International Holdings AG, Colt International Ltd filed Critical Colt International Holdings AG
Priority to AT88312092T priority Critical patent/ATE79460T1/de
Publication of EP0324256A2 publication Critical patent/EP0324256A2/fr
Publication of EP0324256A3 publication Critical patent/EP0324256A3/en
Application granted granted Critical
Publication of EP0324256B1 publication Critical patent/EP0324256B1/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
    • 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
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
    • F24F13/15—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre with parallel simultaneously tiltable lamellae
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C2/00—Fire prevention or containment
    • A62C2/06—Physical fire-barriers
    • A62C2/24—Operating or controlling mechanisms
    • A62C2/246—Operating or controlling mechanisms having non-mechanical actuators
    • A62C2/248—Operating or controlling mechanisms having non-mechanical actuators pneumatic
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C2/00—Fire prevention or containment
    • A62C2/06—Physical fire-barriers
    • A62C2/12—Hinged dampers
    • A62C2/14—Hinged dampers with two or more blades
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/32—Responding to malfunctions or emergencies
    • F24F11/33—Responding to malfunctions or emergencies to fire, excessive heat or smoke
    • F24F11/34—Responding to malfunctions or emergencies to fire, excessive heat or smoke by opening air passages

Definitions

  • the present invention comprises improvements in ventilators and concerns controllable, fire ventilators which are required to open automatically in response to a fire condition, to vent heat, smoke and/or gases from a building, and to provide selectable day-to-day ventilation upon the operation of suitable controls.
  • Such ventilators customarily employ opening means such as a spring or springs, or weights, normally urging the ventilator to open, and releasable retention means releasable in response to the onset of a fire condition, and normally holding the ventilator closed. In this manner, it is ensured that the ventilator opens automatically in an emergency, i.e. when it is required to act as a fire ventilator.
  • the retention means is most conveniently incorporated into the day-to-day ventilator controls and conventionally takes the form of a fusible link which parts at a predetermined elevated temperature to sever the controls and allow the ventilator to open under the action of its opening spring or springs or its opening weight.
  • FR-A-2511128 discloses a fire ventilator which opens manually or in response to detection of smoke or a fire. It does not, however, disclose dual day-to-day controls that must be operated simultaneously to allow the ventilator to open.
  • the present invention provides a controllable fire ventilator as hereinbefore described having dual day-to-day controls each capable of holding the ventilator closed, one of the controls being operable to move the ventilator from an open to its closed position, and both controls being operable simultaneously, to allow the ventilator to open.
  • the dual controls are arranged in tandem and preferably also, the controls are powered controls, each having its own power source.
  • the ventilator of the present example is of the louvred type comprising a frame 10 defining a ventilation opening 11 controlled by a bank of pivotable louvres 12 movable between a closed position, closing the ventilation opening 11 of the ventilator, and an open position allowing the exhaust of heat, smoke and fumes through the ventilation opening.
  • the ventilator may, however, be a single flap or double flap ventilator in which the flap or flaps are movable between a closed position, closing the ventilation opening, and an open position allowing exhaust of heat, smoke and fumes through the opening.
  • the louvres 12 are each pivoted to the frame 10 as at 14, for opening and closing movement, in unison, by movement of control bars (not shown) under the action of opening springs 13 connected between the frame 10 of the ventilator and a transverse member 16 interconnecting the control bars.
  • the louvres 12 are pivoted to the control bars, which extend along opposite sides respectively of the bank of louvres, by means of louvre ears (not shown) attached to the louvre ends.
  • control linkages are known or may be devised for moving a bank of louvres in unison, to open and close the louvres and any system is suitable for the purposes of the present example.
  • the essential feature is to have an opening spring or springs connected between the frame and the control linkage at a suitable point or points.
  • the control linkage may incorporate instead of an opening spring or springs, an opening weight, the weight, when released, moving under gravity to open the ventilator.
  • the ventilator is a flap ventilator having one or two flaps
  • the flaps may be arranged to be urged open by springs or weights in any known or convenient fashion.
  • the louvred ventilator example has dual ventilator controls each capable of holding the ventilator closed. These controls are respectively pneumatically and electrically powered controls and in the present example the controls are arranged in tandem such that if the power supply to one control should fail, the remaining control holds the ventilator closed, and vice versa .
  • the pneumatically powered control which could be substituted with an hydraulically powered control or a manual control, takes the form of a pneumatic piston and cylinder unit 20 mounted on the framed 10, the cylinder of which is supplied with compressed air by a supply pipe (not shown) to close the ventilator, the piston then being instroked to move the control linkage member 16 via a control cable 22 connecting the piston rod 21 with the member 16, the cable passing around a pulley 24.
  • an electro-magnetic control 30 comprising an electro-magnetic device 31 mounted on the frame 10 and an electro-magnetic keeper plate 33 attached to the cable 22. So long as the electro-magnetic device 31 remains energised, the keeper plate 33 is retained by the device and the springs 13 are not able to open the ventilator.
  • the ventilator is unable to open so long as compressed air is supplied to the unit 20.
  • the piston and cylinder unit 20 may be used to adjust the ventilator to any desired open position between fully open and closed.
  • the electro-magnetic device 31 is de-energised and may be re-energised once the ventilator has been adjusted to an open position in order to hold the ventilator closed once it has been re-closed by operation of the unit 21.
  • the cable control incorporates a fusible link 35.
  • the unit 20 and the cable 22 may be connected to close the flap or flaps of a single flap or a twin flap ventilator in any convenient manner, the electro-magnetic control 30 then holding the flaps closed when the flaps are moved to their closed position.
  • an electric motor driven unit could be substituted, the electric motor driven unit being powered e.g. from a battery powered source and the electro-magnetic device 31 from an A.C. power source or vice versa .
  • Dual day-to-day controls having dual electric circuits both of which must be activated to allow the ventilator to open can be interconnected electrically with an electrically signalling fire detection system and an electrically operated sprinkler system to achieve an earlier response to a requirement for smoke venting whilst avoiding ventilator opening in response to a false alarm arising from the fire detection system alone.
  • the ventilator of the present example may again be of the louvred type as already described.
  • the ventilator may, however, be a single flap or double flap ventilator in which the flap or flaps are movable between a closed position, closing the ventilation opening, and an open position allowing exhaust of heat, smoke and fumes through the opening.
  • an opening spring or springs or an opening weight or weights are provided to open the ventilator.
  • the dual controls illustrated in Fig. 3 are each capable of holding the ventilator closed. These controls are respectively pneumatically and electrically powered controls and in the present example the controls are again arranged in tandem such that if the power supply to one control should fail, the remaining control holds the ventilator closed, and vice versa .
  • the pneumatically powered control takes the form of a pneumatic piston and cylinder unit 120 mounted on the frame of the ventilator, the cylinder 121 of which is supplied with compressed air by a supply pipe 122 to close the ventilator, the piston then being instroked to move a control linkage member connected as at 123 to the piston rod 124.
  • an electro-magnet 30 is provided mounted in, and forming the inner end wall of, the cylinder 121, which is composed of non-magnetically permeable material, a keeper plate 33 being attached to the piston 126. So long as the electro-magnet 30 remains energised, the keeper plate 33 is retained in contact with it by the magnet and the springs are not able to open the ventilator.
  • the ventilator is unable to open so long as compressed air is supplied to the unit 120 through the supply pipe 122.
  • the piston and cylinder unit 120 may be used to adjust the ventilator to any desired open position between fully open and closed.
  • the electro-magnet 30 is de-energised and may be re-energised once the ventilator has been adjusted to an open position in order to hold the ventilator closed once it has been re-closed by operation of the unit 120.
  • the ventilator control linkage member may incorporate a fusible link.
  • a fire switch 140 is incorporated in the power supply to the electro-magnet 30 to enable the ventilator to open when the unit 120 is exhausted of compressed air through the pipe connection 122 by suitable switching of a pneumatic control valve to place the pipe connection 122 in communication with atmosphere, e.g. in response to operation of an electrically signalling fire detection system or an electrically operated sprinkler system.
  • the unit 120 may be connected to close the flap or flaps of a single flap or a twin flap ventilator in any convenient manner, the electromagnet 30 then holding the flaps closed when the flaps are moved to their closed position.
  • the magnet 30 is powered from a 24 Volt battery source.
  • the dual day-to-day controls (not shown) having respectively pneumatic and electric circuits to power the unit 120 and the magnet 30 respectively must both be switched to allow the ventilator to open.
  • the fire switch 140 can be interconnected electrically with the electrically signalling fire detection system to achieve an earlier response to a requirement for smoke venting by automatic operation of the pneumatic control valve in response to operation of the electrically operated sprinkler system whilst avoiding ventilator opening in response to a false alarm arising from the fire detection system alone.
  • Any suitable manually controllable pneumatic valve system may be used to control the supply and exhaust of compressed air to and from the unit 120 to control the day-to-day adjustment of the ventilator.
  • an electric switch in addition to the fire switch 140 would be provided to de-energise and then re-energise the electro-magnet 30 for day-to-day opening of the ventilator, the electro-magnet being re-energised to hold the ventilator closed when the ventilator is returned to its closed position by operation of the unit 120.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Air-Flow Control Members (AREA)

Claims (12)

  1. Dispositif de ventilation commandable en cas d'incendie, devant s'ouvrir automatiquement par suite de l'apparition d'un incendie et devant permettre une ventilation journalière au choix, ce dispositif de ventilation comportant un ou plusieurs ressorts (13) et/ou un ou plusieurs poids le sollicitant vers sa position ouverte, ainsi que deux commandes journalières (20,30), caractérisé en ce que chacune des commandes journalières est capable de maintenir le dispositif de ventilation fermé, une première commande (20) parmi les deux commandes pouvant intervenir pour déplacer le dispositif de ventilation de sa position ouverte vers sa position fermée, et les deux commandes pouvant intervenir simultanément pour permettre au dispositif de ventilation de s'ouvrir sous l'action de son ou ses ressorts et/de son ou ses poids.
  2. Dispositif de ventilation suivant la revendication 1 caractérisé en ce que les deux commandes (20,30) sont agencées en tandem.
  3. Dispositif de ventilation suivant l'une quelconque des revendications 1 ou 2 caractérisé en ce que les deux commandes sont des commandes alimentées en énergie ayant chacune sa propre source d'énergie.
  4. Dispositif de ventilation suivant l'une quelconque des revendications 1 ou 2 caractérisé en ce que la première commande (20) est une commande manuelle.
  5. Dispositif de ventilation suivant l'une quelconque des revendications 1 ou 2 caractérisé en ce que la première commande (20) est une commande alimentée pneumatiquement ou hydrauliquement.
  6. Dispositif de ventilation Suivant l'une quelconque des revendications 1,2,4 ou 5 caractérisé en ce que la seconde commande (30) est une commande alimentée électriquement.
  7. Dispositif de ventilation suivant l'une quelconque des revendications 5 et 6 caractérisé en ce que la première commande (20) comprend une unité à cylindre et piston alimentée pneumatiquement.
  8. Dispositif de ventilation suivant l'une quelconque des revendications 6 ou 7 caractérisé en ce que la seconde commande (30) comprend un dispositif électromagnétique (31) et une plaque de retenue électromagnétique (33) retenue par le dispositif afin de maintenir le dispositif de ventilation fermé aussi longtemps que le dispositif électromagnétique demeure excité.
  9. Dispositif de ventilation suivant la revendication 8 caractérisé en ce que le dispositif électromagnétique (31) est agencé de manière à être réexcité une fois que le dispositif de ventilation a été placé dans une position ouverte par le ou les ressorts et/ou par le ou les poids.
  10. Dispositif de ventilation suivant l'une quelconque des revendications 7 à 9 caractérisé en ce que le dispositif électromagnétique (31) est monté dans la paroi frontale interne du cylindre (120) de l'unité à cylindre et piston et il forme cette paroi frontale interne, le piston (126) de l'unité porte la plaque de retenue électromagnétique (33) et le cylindre est composé d'un matériau non perméable magnétiquement.
  11. Dispositif de ventilation suivant l'une quelconque des revendications 8,9 ou 10 caractérisé en ce que la commande alimentée électriquement comporte un interrupteur actionné en cas d'incendie (140), normalement fermé, interconnecté électriquement avec un système (5) de détection d'incendie à signalisation électrique, de manière à s'ouvrir lors du fonctionnement de celui-ci, afin de désexciter ainsi le dispositif électromagnétique, et la première commande est sensible au fonctionnement d'un système d'arrosage actionné électriquement.
  12. Dispositif de ventilation suivant l'une quelconque des revendications 2 à 11 lorsqu'elle dépend directement ou indirectement de la revendication 2, caractérisé en ce que les deux commandes journalières comportent un lien fusible disposé de manière à obtenir, à la suite de l'apparition d'un incendie et de la fusion du lien, une ouverture automatique du dispositif de ventilation sous l'action du ou des ressorts et/ou du ou des points.
EP88312092A 1988-01-09 1988-12-21 Ventilateurs Expired - Lifetime EP0324256B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88312092T ATE79460T1 (de) 1988-01-09 1988-12-21 Luefter.

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
GB8800464 1988-01-09
GB888800464A GB8800464D0 (en) 1988-01-09 1988-01-09 Improvements in ventilators
GB888800574A GB8800574D0 (en) 1988-01-12 1988-01-12 Improvements in ventilators
GB8800574 1988-01-12
GB888811793A GB8811793D0 (en) 1988-05-18 1988-05-18 Improvements in ventilators
GB8811793 1988-05-18
GB8823596 1988-10-07
GB8823596A GB2208094A (en) 1988-01-09 1988-10-07 Adjustable ventilator with fire-damper control

Publications (3)

Publication Number Publication Date
EP0324256A2 EP0324256A2 (fr) 1989-07-19
EP0324256A3 EP0324256A3 (en) 1990-07-04
EP0324256B1 true EP0324256B1 (fr) 1992-08-12

Family

ID=27450026

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88312092A Expired - Lifetime EP0324256B1 (fr) 1988-01-09 1988-12-21 Ventilateurs

Country Status (4)

Country Link
EP (1) EP0324256B1 (fr)
AU (1) AU607561B2 (fr)
DE (1) DE3873728T2 (fr)
NZ (1) NZ227501A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108104351A (zh) * 2013-02-20 2018-06-01 奥润博克斯有限公司 顶棚镶板
CN111659052A (zh) * 2020-05-16 2020-09-15 郑州神宇防火制品有限公司 多用途开启结构、灭火装置、防火门及防火门的生产工艺

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2666839B1 (fr) * 1990-09-17 1993-04-16 Souchier Fages Sa Systeme de desenfumage pour facades de batiment.
DE4418636A1 (de) * 1994-05-27 1995-11-30 Lig Lueftungstechnische Ingeni Zuluftanlage für Gebäude
FR2877687B1 (fr) * 2004-11-09 2007-02-02 Comtra Sarl Commande d'un systeme d'aeration a volets pivotants avec ouverture d'urgence
WO2017093951A1 (fr) * 2015-12-02 2017-06-08 Van Biljoen Mark Ventilateur d'incendie et mécanisme de commande de ventilateur
CN107740882A (zh) * 2017-12-01 2018-02-27 泰兴市中远船舶机械有限公司 一种船用手气电动远程遥控防火风阀

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU443928B2 (en) * 1969-12-23 1973-12-17 H. H. Robertson (Australia) Pty. Limited Ventilator for heat and smoke
FR2511128B1 (fr) * 1981-08-04 1985-09-27 Panol Sa Dispositif d'aeration a commande automatique
GB2194325A (en) * 1986-04-29 1988-03-02 Colt Int Ltd Ventilators
NZ222645A (en) * 1986-11-25 1990-07-26 Colt Int Ltd Ventilator with fused fire prop

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108104351A (zh) * 2013-02-20 2018-06-01 奥润博克斯有限公司 顶棚镶板
CN108104351B (zh) * 2013-02-20 2020-03-24 奥润博克斯有限公司 顶棚镶板
CN111659052A (zh) * 2020-05-16 2020-09-15 郑州神宇防火制品有限公司 多用途开启结构、灭火装置、防火门及防火门的生产工艺
CN111659052B (zh) * 2020-05-16 2021-06-25 郑州神宇防火制品有限公司 多用途开启结构、灭火装置、防火门及防火门的生产工艺

Also Published As

Publication number Publication date
DE3873728T2 (de) 1993-02-18
EP0324256A2 (fr) 1989-07-19
AU2735288A (en) 1989-08-17
EP0324256A3 (en) 1990-07-04
DE3873728D1 (de) 1992-09-17
NZ227501A (en) 1991-05-28
AU607561B2 (en) 1991-03-07

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