EP0956102B1 - Dispositif de declenchement d'une tete de sprinkleur - Google Patents

Dispositif de declenchement d'une tete de sprinkleur Download PDF

Info

Publication number
EP0956102B1
EP0956102B1 EP96907836A EP96907836A EP0956102B1 EP 0956102 B1 EP0956102 B1 EP 0956102B1 EP 96907836 A EP96907836 A EP 96907836A EP 96907836 A EP96907836 A EP 96907836A EP 0956102 B1 EP0956102 B1 EP 0956102B1
Authority
EP
European Patent Office
Prior art keywords
piston
valve
triggering apparatus
valve piston
channel
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
EP96907836A
Other languages
German (de)
English (en)
Other versions
EP0956102A1 (fr
Inventor
Anders Kjellberg
Bo Kure
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.)
Kure Fastighets- & Forvaltnings AB
Original Assignee
Kure Fastighets- & Forvaltnings AB
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 Kure Fastighets- & Forvaltnings AB filed Critical Kure Fastighets- & Forvaltnings AB
Publication of EP0956102A1 publication Critical patent/EP0956102A1/fr
Application granted granted Critical
Publication of EP0956102B1 publication Critical patent/EP0956102B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C37/00—Control of fire-fighting equipment
    • A62C37/08—Control of fire-fighting equipment comprising an outlet device containing a sensor, or itself being the sensor, i.e. self-contained sprinklers
    • A62C37/10—Releasing means, e.g. electrically released
    • A62C37/11—Releasing means, e.g. electrically released heat-sensitive
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C31/00—Delivery of fire-extinguishing material
    • A62C31/02—Nozzles specially adapted for fire-extinguishing

Definitions

  • the present invention refers to a sprinkler head triggering apparatus, comprising a spray nozzle with an actuator being releasable by heating to a certain temperature, and which normally holds a valve piston in a closed position against a valve seat, which valve piston, at release of the actuator, is movable in a piston sleeve in the direction away from said seat, for opening a flow passage from a feed line for pressurized water to the spray nozzle.
  • Sprinkler heads are used in sprinkler systems for fire extinguishing inside plants, buildings and on ships.
  • a triggering device comprising an actuator, e.g. a glass bulb which is actuated by heating to a high ambient temperature.
  • an actuator e.g. a glass bulb which is actuated by heating to a high ambient temperature.
  • WO-A-9321998 it is also known from WO-A-9321998 to provide such a glass bulb with an electrode which may explode the bulb electrically by remote control, e.g. by a signal from a smoke detector or for functional testing.
  • a drawback with sprinkler systems which are equipped with such actuator means is that the functional testing of the system is very difficult to perform. For example, each bulb must be exchanged and the restoration of the system to normal function thus takes a long time. Normally there are regulations for performing such function testing according to a certain regularity.
  • One purpose of the present invention is therefore to provide a triggering apparatus which can be released directly both mechanically by means of a heat fuse, and also by means of electrical remote control, e.g. via a smoke detector, without the need for particular flow valves.
  • Another object is to provide a triggering apparatus which is simple to test functionally.
  • the flow passage is openable in the normal closed position of the valve piston with intact actuator, via a remote control operated pilot piston, that the valve piston is provided with a central bore and a first angular passage, and that the central bore and the first angular passage together with a second annular passage through a bulb screw, and a space form the flow passage which may be opened by the pilot piston.
  • the triggering apparatus according to the invention is in the following embodiment shown together with a sprinkler head of a special high pressure type, but the invention is not limited to this type of sprinkler nozzles.
  • the nozzle comprises a holder 10 which forms an attachment for a nozzle head 11.
  • This head 11 is in its turn mounted in the holder 10 by means of a bulb screw 12 which projects with one of its ends into the holder and which carries a bulb protector 13 at its other end.
  • a glass bulb 14 is mounted at the outer end of a valve piston 15 which is movable journalled inside the bulb screw 12, in such a way that the piston 15 is held in a closed position against a valve seat.
  • This valve seat is formed by a conical part 16 of a secondary piston 17.
  • the glass bulb 14 If the glass bulb 14 is subjected to heat above a certain temperature, e.g. 70°C, the bulb breaks and the valve piston 15 is able to move in the direction downward in Fig. 1, by the action of a fluid pressure prevailing within the space 18. This pressure is transmitted to the space via a feed line which is not shown in the drawing and which is connected at right angle to said space, acting against the end edge of said valve piston 15, which in this end portion is provided with an axially projecting, central bore 19.
  • a feed line which is not shown in the drawing and which is connected at right angle to said space, acting against the end edge of said valve piston 15, which in this end portion is provided with an axially projecting, central bore 19.
  • valve piston 15 when the valve piston 15 is pressed away from the seat of the secondary piston 17, water penetrates into the central bore 19 and flows further via a first angular passage 20 through the piston wall and a second angular passage 21 through the bulb screw 12 into a space 22 between the holder 10 and the sprinkler nozzle head 11.
  • the above described working process takes place when the glass bulb is heated above a certain temperature.
  • a pressure detecting valve which starts pumping for supply of sprinkler water with a high pressure, e.g. 200 bar.
  • the secondary piston 17 is movable journalled in a piston sleeve 24 inside the holder 10, which piston sleeve is coaxial with the guide for the valve piston 15 in the bulb screw 12.
  • a helical spring 25 rest on a angle shoulder 26 inside a pilot piston cylinder 27 which is screwed on to the upper end of the holder 10.
  • the spring 25 presses with a small force against an end edge 28 on upper side of the secondary piston, as it is shown in Fig. 1, or the left side as it is shown in Fig. 2.
  • the secondary piston 17 is provided with a first channel 29, which between the two ends of the two ends of the piston 17 and which forms a connection between the space 18 at one side of the piston, and the space 30 which houses the helical spring 25, so that equal pressure prevails on both ends of the piston.
  • the secondary piston 17 is provided with a second channel 31 arranged in parallel, which has a larger cross section than the first channel 29. This second channel 31 runs along the centre axis of the piston and is normally closed by a pilot piston 32 which is movable arranged inside the pilot piston cylinder 27, coaxial with the valve piston 15 and the secondary piston 17.
  • the pilot piston 32 is normally held in its closed position against the outlet of the second channel 31 of the secondary piston 17 by the action of a helical spring 33. Also, the pilot piston is manoeuvrable by means of a solenoid 34 which is electrically controlled via a cable connection 35.
  • This flow may be interrupted by a deactivation of the solenoid. This shuts off the channel 31 and the secondary piston 17 is pressed down in Fig. 1 against the end of the valve piston 15 and closes the bore 19.
  • the functional testing can be made by means of a short activation of the solenoid.
  • valve piston, the secondary piston and the pilot piston do not have to be coaxially arranged along a common longitudinal axis.
  • the electrically controlled release of the sprinkler head do not have to take place via a secondary piston, but the pilot piston may act directly against the valve piston.

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
  • Catching Or Destruction (AREA)
  • Nozzles (AREA)

Claims (9)

  1. Dispositif de déclenchement d'une tête d'asperseur, comportant une buse d'aspersion munie d'un actionneur (14) pouvant être déclenchée par un chauffage jusqu'à une température déterminée, et qui normalement, via une vis d'ampoule (12), maintient un piston de soupape (15) dans une position fermée contre un siège de soupape, lequel piston de soupape, lors d'un déclenchement de l'actionneur, est mobile dans une chemise de piston dans la direction l'éloignant dudit siège, pour ouvrir un passage d'écoulement (19-22) à partir d'une conduite d'alimentation en eau sous pression jusqu'à la buse d'aspersion,
       caractérisé en ce que le passage d'écoulement (19-22) peut être ouvert dans la position fermée, normale du piston de soupape (15), l'actionneur (14) étant intact, via un piston-pilote actionné par commande à distance (32), que le piston de soupape est muni d'un alésage central (19) et d'un premier passage angulaire (20), et que l'alésage central et le premier passage angulaire associés à un second passage angulaire (21) par l'intermédiaire d'une vis d'ampoule (12), et à un espace (22) forment le passage d'écoulement qui peut être ouvert par le piston-pilote (32).
  2. Dispositif de déclenchement selon la revendication 1, caractérisé en ce que le piston-pilote (32) est mobile monté à l'intérieur d'une chemise de piston entre un piston secondaire (17) et au moins un moyen formant ressort (33).
  3. Dispositif de déclenchement selon la revendication 2, caractérisé en ce que le piston de soupape (15) est agencé de manière coaxiale par rapport au piston-pilote (32), que le piston secondaire (17) est situé entre le piston-pilote (32) et le piston de soupape (15), et que le piston de soupape est déplacé à partir de sa position de repos par l'action d'une pression de fluide agissant sur un côté dudit piston de soupape.
  4. Dispositif de déclenchement selon la revendication 2 ou 3, caractérisé en ce qu'une extrémité du piston secondaire (17) constitue un siège pour le piston de soupape (15).
  5. Dispositif de déclenchement selon la revendication 4, caractérisé en ce que le piston secondaire (17) est muni d'un premier conduit (29) ayant une petite section transversale, ledit premier conduit s'étendant à travers ce piston et transmettant la pression de fluide à partir d'une extrémité du piston jusqu'à l'autre.
  6. Dispositif de déclenchement selon la revendication 5, caractérisé en ce que le piston secondaire (17) est également muni d'un second conduit (31) ayant une section transversale plus grande, lequel second conduit s'étend également à partir d'une extrémité du piston jusqu'à l'autre.
  7. Dispositif de déclenchement selon la revendication 6, caractérisé en ce que le second conduit (31) peut être ouvert et fermé par l'intermédiaire du piston-pilote (32), dans lequel l'ouverture de ce conduit entraíne une réduction de pression à l'extrémité opposée du piston secondaire (17) par rapport au siège, de sorte que ledit piston secondaire est déplacé dans la direction provenant du piston de soupape (15) par la différence de pression, pour ouvrir le passage d'écoulement (19-22) à partir de la conduite d'alimentation en eau sous pression jusqu'à la buse d'aspersion.
  8. Dispositif de déclenchement selon l'une quelconque des revendications ci-dessus, caractérisé en ce que le piston-pilote (32) peut être manoeuvré par l'intermédiaire d'un électroaimant (34).
  9. Dispositif de déclenchement selon l'une quelconque des revendications précédentes, caractérisé en ce que la conduite d'alimentation en eau sous pression est directement reliée, sans moyen particulier formant vanne, à une ou plusieurs pompes d'alimentation via un détecteur de pression qui démarre ladite pompe en cas de détection d'un changement de pression.
EP96907836A 1995-03-16 1996-03-15 Dispositif de declenchement d'une tete de sprinkleur Expired - Lifetime EP0956102B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE9500920 1995-03-16
SE9500920A SE504325C2 (sv) 1995-03-16 1995-03-16 Utlösningsanordning för sprinklerhuvud
PCT/SE1996/000331 WO1996028218A1 (fr) 1995-03-16 1996-03-15 Dispositif de declenchement d'une tete de sprinkleur

Publications (2)

Publication Number Publication Date
EP0956102A1 EP0956102A1 (fr) 1999-11-17
EP0956102B1 true EP0956102B1 (fr) 2004-09-01

Family

ID=20397556

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96907836A Expired - Lifetime EP0956102B1 (fr) 1995-03-16 1996-03-15 Dispositif de declenchement d'une tete de sprinkleur

Country Status (7)

Country Link
EP (1) EP0956102B1 (fr)
AT (1) ATE274977T1 (fr)
AU (1) AU5129996A (fr)
DE (1) DE69633305D1 (fr)
NO (1) NO316765B1 (fr)
SE (1) SE504325C2 (fr)
WO (1) WO1996028218A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2778751C1 (ru) * 2021-11-24 2022-08-24 Общество С Ограниченной Ответственностью "Фогстрим" Ороситель системы пожаротушения
WO2023096537A1 (fr) * 2021-11-24 2023-06-01 Общество С Ограниченной Ответственностью "Фогстрим" Arroseur de système d'extinction d'incendie

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19618072A1 (de) * 1996-05-06 1997-11-13 Total Feuerschutz Gmbh Feuerlöscheinrichtung für Kraftfahrzeuge, die in mehretagigen Parkhäusern abgestellt sind
DE19618092A1 (de) * 1996-05-06 1997-11-13 Total Feuerschutz Gmbh Anregerelement
FI103480B (sv) * 1998-01-09 1999-07-15 Marioff Corp Oy Hållare för montering av ett spruthuvud
ITBS20070155A1 (it) * 2007-10-11 2009-04-12 Fiorentini Minireg S P A Elettrovalvola di sicurezza
SE535545C2 (sv) 2010-07-28 2012-09-18 Ultra Fog Ab Sprinklerhuvud
US11291873B2 (en) * 2016-06-13 2022-04-05 Tyco Fire Products Lp Fire sprinkler with actuator
CN110652679B (zh) * 2019-09-03 2021-02-02 国网浙江省电力有限公司嘉兴供电公司 一种基于泛在电力物联网的断路器故障处理***及方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993021998A1 (fr) * 1992-04-23 1993-11-11 Sundholm Goeran Tete automatique d'extinction a reponse rapide

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3827002A1 (de) * 1988-08-09 1990-02-15 Willi Horcher Vorrichtung zur ausloesung eines sprinklers
US4984637A (en) * 1989-06-23 1991-01-15 Finnigan Wilfred J Electronic fire protection system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993021998A1 (fr) * 1992-04-23 1993-11-11 Sundholm Goeran Tete automatique d'extinction a reponse rapide

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2778751C1 (ru) * 2021-11-24 2022-08-24 Общество С Ограниченной Ответственностью "Фогстрим" Ороситель системы пожаротушения
WO2023096537A1 (fr) * 2021-11-24 2023-06-01 Общество С Ограниченной Ответственностью "Фогстрим" Arroseur de système d'extinction d'incendie

Also Published As

Publication number Publication date
NO974215D0 (no) 1997-09-12
DE69633305D1 (de) 2004-10-07
SE9500920L (sv) 1996-09-17
NO974215L (no) 1997-11-14
SE9500920D0 (sv) 1995-03-16
AU5129996A (en) 1996-10-02
ATE274977T1 (de) 2004-09-15
SE504325C2 (sv) 1997-01-13
WO1996028218A1 (fr) 1996-09-19
NO316765B1 (no) 2004-05-03
EP0956102A1 (fr) 1999-11-17

Similar Documents

Publication Publication Date Title
EP0956102B1 (fr) Dispositif de declenchement d'une tete de sprinkleur
EP1465707B1 (fr) Element de soupape
EP0665761B1 (fr) Tete pulverisatrice destinee a etre utilisee pour lutter contre les incendies
CA1105804A (fr) Valve sur bouteille extinctrice au gaz et systeme muni de ladite valve
CA2678623A1 (fr) Systeme de protection contre l'incendie
US4678120A (en) Refractory flame-gunning apparatus
CN1378474A (zh) 灭火装置
AU1880399A (en) Holder for mounting a spray head
US3052304A (en) Fire extinguishing system
GB2156213A (en) An automatically and manually operable portable fire extinguisher
US4099573A (en) Sprinkler head
US4136851A (en) Valve for fire extinguishing system of gas distribution type
US3812914A (en) Automatic on-off sprinkler
EP4111098B1 (fr) Régulateur de pression à sécurité de surpression de sortie
AU675815B2 (en) Installation for fighting fire
KR100314153B1 (ko) 소화설비밸브
GB2094441A (en) Valves
SU1417886A1 (ru) Автоматическа дренчерна система пожаротушени
RU2016598C1 (ru) Устройство для подачи огнегасительной жидкости к противопожарной установке
US4627497A (en) Stop valve alarm for sprinkler system
GB2251475A (en) Coolant control valve assembly
EP0884531B1 (fr) Assemblage de soupape
US1958285A (en) Fire extinguishing apparatus
SU1606134A1 (ru) Система управлени спринклерной установкой пожаротушени
US2590347A (en) Pneumatically actuated valve controlling apparatus

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19971016

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

RIN1 Information on inventor provided before grant (corrected)

Inventor name: KURE, BO

Inventor name: KJELLBERG, ANDERS

17Q First examination report despatched

Effective date: 20000906

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20040901

Ref country code: LI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20040901

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20040901

Ref country code: FR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20040901

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20040901

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20040901

Ref country code: CH

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20040901

Ref country code: BE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20040901

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20040901

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REF Corresponds to:

Ref document number: 69633305

Country of ref document: DE

Date of ref document: 20041007

Kind code of ref document: P

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20041201

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20041201

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20041201

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20041202

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050315

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050315

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050315

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050331

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20050602

EN Fr: translation not filed
GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20050315

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050201