EP0678311B1 - Ortsfeste Feuerbekämpfungseinrichtung - Google Patents

Ortsfeste Feuerbekämpfungseinrichtung Download PDF

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Publication number
EP0678311B1
EP0678311B1 EP95400811A EP95400811A EP0678311B1 EP 0678311 B1 EP0678311 B1 EP 0678311B1 EP 95400811 A EP95400811 A EP 95400811A EP 95400811 A EP95400811 A EP 95400811A EP 0678311 B1 EP0678311 B1 EP 0678311B1
Authority
EP
European Patent Office
Prior art keywords
nozzle
fire
installation according
fighting installation
unlocking member
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
EP95400811A
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English (en)
French (fr)
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EP0678311A1 (de
Inventor
Alain Moliere
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.)
Moliere Ets SA
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Moliere Ets SA
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Filing date
Publication date
Application filed by Moliere Ets SA filed Critical Moliere Ets SA
Publication of EP0678311A1 publication Critical patent/EP0678311A1/de
Application granted granted Critical
Publication of EP0678311B1 publication Critical patent/EP0678311B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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

Definitions

  • the present invention relates to a fixed fire-fighting installation mainly intended for the protection of premises or other enclosures containing flammable materials.
  • This installation which serves as the basis for the preamble of claim 1, comprises lances with a spraying device, arranged adjacent to the ceiling of the area to be protected. and connected to the pipes of a distribution network of an extinguishing fluid by means of a rotating joint. Each lance is hingedly mounted on its pipe to pivot around the axis of the latter from a horizontal standby position to a vertical position of use.
  • installations of the aforementioned type are essentially aerial and placed at a distance from the areas to be protected and are therefore ineffective for the early treatment of a localized fire.
  • the object of the present invention is therefore to solve the problems mentioned above by implementing an installation with spraying members, movable from a standby or erasing position according to which they are protected from mechanical shock, towards a position of use. according to which the sprinkling liquid is sprayed on the area in fire.
  • Another object of the present invention is an installation, the spraying members of which are arranged in the immediate vicinity of the zone which they each have to protect, which allows an early treatment of the fire and prevents its extension to d 'other areas of the room.
  • the fire-fighting installation intended for equipping premises which may contain flammable materials comprising at least one lance with a spraying device, connected to one of the pipes of a distribution network of '' an extinguishing fluid by means of a rotary joint, said lance being mounted in an articulated manner on its pipe to pivot around the axis of the latter from a standby position to a position of use, is essentially characterized by that the lance is arranged adjacent to one of the walls of the zone to be protected, that the maintenance of said lance in the standby position according to which it occupies a substantially vertical position is ensured by a mechanical fastening system on the one hand of the wall and on the other hand of said lance, that the mechanical fastening system comprises at least in connection with the connection with the outlet mouth of the lance an element t for unlocking, one of the faces of which is disposed on the flow path of the fluid in the lance and that said unlocking member under the effect of the thrust exerted on it by the outward flow of the
  • the installation according to the invention for fire fighting is intended to equip test laboratories, premises containing flammable products and any other type of enclosure to be protected from fire.
  • the installation comprises a distribution network of an extinguishing fluid constituted by one or more conduits 1 for transporting this fluid which may be water added with wetting or foaming agents.
  • This network of pipes can be connected via an electrically controlled valve to a tank of extinguishing fluid.
  • a pump can also be associated with this installation to draw the fluid in the reservoir on command and pulsate it in the pipeline network.
  • the installation will include fire detection and control means, which upon detection of a fire will activate the solenoid valve and then the pump so that the extinguishing fluid is pulsed from the tank to one or more fire hoses 2 through of the pipeline network 1.
  • the distribution of fire hoses in the room depends on the distribution in the latter of risk areas.
  • Each risk zone will be equipped with one or more nozzles arranged as close as possible to the place or places where there is a risk of a fire.
  • each lance is connected in an articulated manner to its pipe by means of a tight rotary joint 4.
  • the segment of the pipe to which the lance is connected develops horizontally so that the fire hose can pivot around the horizontal axis of this segment from a standby position to a position of use.
  • the lance 2 occupies a substantially vertical position above the pipe while, depending on the position of use, the lance occupies a horizontal or slightly inclined position relative to the horizontal.
  • the lance according to the standby position can occupy a slightly inclined position relative to the vertical in the direction of pivoting towards its position of use so that this pivoting can be induced only by the weight of the lance.
  • a spring member 5 will be disposed between the lance 2 and the wall 3 so as to accelerate the pivoting of the lance.
  • This arrangement will also be used when the lance must occupy a vertical position or a tilting position opposite to the direction of pivoting towards the position of use.
  • the horizontal position of the lance is materialized by a stop means 6 opposing the continued pivoting of the lance downward.
  • This stop means according to the preferred embodiment consists of a flexible link fixed on the one hand to the wall 3 and on the other hand to the barrel of the lance. Any other stop means may be used.
  • the lance is kept in the standby position by a mechanical fastening system secured on the one hand to the wall 3 and on the other hand to the lance 1.
  • This mechanical fastening system comprises in relation of sliding connection with the lance and more precisely with the outlet mouth of the latter, an unlocking element 7 of which one of the faces 7A is opposite the internal channel of the lance and develops transversely with respect to the axis of the last.
  • the element for unlocking by the face 7A is disposed on the outward flow path of the fluid engaged in the channel of the lance and undergoes fluid, when the latter flows towards the outlet orifice, a thrust under the action of which it is caused to move axially relative to the lance 2 and this in the direction of flow of the fluid towards an unlocking position in which the mechanical attachment connection between the lance 2 and the wall 3 is broken.
  • the rupture of this link authorizes the pivoting of the lance towards its position of use.
  • the attachment system according to the embodiment shown in FIGS. 1 and 2, comprises an unlocking member which, depending on the unlocking position, is separated from the lance 2.
  • This unlocking member is advantageously constituted by a removable plug for closing the outlet mouth of the lance.
  • the mechanical system in addition to the plug, comprises a link 8 fixed on the one hand to this plug and on the other hand to the wall 3.
  • this link is flexible, maintaining the lance in the standby position being ensured by tensioning the cable.
  • the flexible link can be formed either by a metal cable or by a chain or by any other suitable member.
  • the plug has a shoulder to limit its insertion into the lance.
  • the flexible link is fixed by one of its ends in a hole made in the plug. By its other end, this link is integral with a fixing member such as a dowel engaged in an orifice in the wall at an appropriate height so that the cable can stretch in a substantially radial direction to the lance 2.
  • the lance receives a bouncing plate 10 carried by two lateral tabs 11.
  • object of Figures 1 and 2 is equipped with a dry and pressure-free network for the distribution of extinguishing fluid. Furthermore, this installation includes a fire detection means known to those skilled in the art, delivering, when a fire is detected, an activation signal of the solenoid valve and of the pump so that fluid fire extinguisher is pulsed in the pipes. This fluid strikes the face 7A of the stopper or else compress the air contained in the lance which repels the stopper and frees the lance from its standby position.
  • FIG. 4 is shown an installation with pipe network under pressure of extinguishing fluid.
  • the unlocking member 9 of the fastening system according to Figure 3 is traversed right through along its axis by an orifice 12 for passage of the extinguishing fluid.
  • This axial orifice is closed externally by a heat-breakable bulb 13 disposed between the member 9 and a rebound plate 10 carried by lateral tabs 11 fixed to said member 9.
  • the passage orifice 12 opens into a conical cavity of the unlocking member. This cavity is turned towards the nozzle of the lance and is delimited by a concave face 9A receiving the thrust of the fluid.
  • the unlocking member according to FIG. 3 remains always integral with the lance 2.
  • the unlocking member comprises a radial extension 14 external to the lance 2 traversed right through parallel to the axis of the lance 2 through an orifice 15.
  • This radial extension can form an annular bead around the unlocking member.
  • This attachment mechanism comprises, for attachment to the wall 3, a horizontal arm 16 supporting a vertical pin 17 projecting upwards, engaged when the lance is in the standby position, in the orifice 15 of the radial extension.
  • the unlocking member 9 comprises a barrel 18 slidably mounted in the bore of a bearing ring 19 mounted at the end of the lance 2, said barrel 18, in the lance being provided with a piston 20 and at the outside of the axial extension lance.
  • the barrel 18 is in a cylindrical tubular form. By passing through the bore of the bearing ring 19, the barrel 18 enters the lance 2.
  • the bore of the barrel open at the lower end is delimited in the upper part by the face 9A.
  • the barrel receives the piston 20 which is subjected to slide in the cylindrical bore of the lance against the cylindrical face of the latter.
  • the piston 20 will comprise, as known, one or more sealing rings 21 coming against the cylindrical face of the lance 2.
  • a compression spring 22 is disposed around the barrel 18 between the bearing ring 19 and the piston 20, the member unlocking moving towards its unlocking position against the action exerted by this compression spring 22.
  • the bearing ring 19 is threaded and is engaged in a tapping made at the end of the lance.
  • the radial extension 14 under the action of the compression spring bears against the support arm 16.
  • the barrel comes to bear against an internal shoulder of the lance 2.
  • the extinguishing fluid under pressure in the lance exerts an axial thrust on the face 9A and on the piston 20 of the member 9.
  • the force exerted by the compression spring 22 on the piston 20 compensates for the axial thrust exerted by the fluid on the member 9 and opposes the axial movement of the member 9 towards its unlocking position.
  • the axial force exerted on the piston 20 by the spring 22 depends on the degree of compression of the latter which is given by the degree of depression of the bearing ring 19 in the lance.
  • This threshold value is slightly higher than the static value of the pressure of the extinguishing fluid in the pipeline network when the installation is in standby configuration.
  • the fluid pressure increases and exceeds the predetermined threshold, which leads to the displacement of the unlocking member 9 towards its position of unlocking.
  • the heat released by a fire leads to the expansion of the liquid contained in the bulb 13 and to the rupture of the latter.
  • the orifice 12 is then released which causes a pressure drop in the pipe.
  • Fire detection is carried out by detecting this pressure drop using a pressure sensor and other devices. From the signal emitted by the pressure sensor, representative of a sudden drop in pressure, the solenoid valve and the pump are activated so that extinguishing fluid is blown into the pipes at a pressure higher than the value of the previously determined threshold, and that the unlocking member is pushed upwards and the orifice 15 released from the pin 17.

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)
  • Respiratory Apparatuses And Protective Means (AREA)
  • Special Wing (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)

Claims (14)

  1. Feuerbekämpfungseinrichtung zur Ausrüstung von Räumlichkeiten, die entflammbare Materialien enthalten können, die wenigstens eine Lanze (2) mit Berieselungsorgan aufweist, die über ein Drehgelenk (4) an eine Leitung (1) eines Verteilernetzes für ein Löschfluid angoschlossen ist, wobei die Lanze (2) zur Verschwenkung um die Achse der Leitung (1) aus einer Wachposition in eine Verwendungsposition an der Leitung (1) angelenkt angebracht ist, dadurch gekennzeichnet, daß die Lanze (2) angrenzend an eine der Wände (3) der zu schützenden Zone angeordnet ist, daß der Halt der Lanze (2) in Wachposition, gemäß derer sie eine im wesentlichen vertikale Position einnimmt, durch ein mechanisches Befestigungssystem sichergestellt ist, das einerseits mit der Wand (3) und andererseits mit der Lanze (2) fest verbunden ist, daß das mechanische Befestigungssystem wenigstens in Gleitverbindungsbeziehung mit der Ausblasöffnung der Lanze (2) ein Entriegelungselement (7), (9) aufweist, von dem eine der Seiten (7A), (9A) an der Fluidablaufbahn in der Lanze angeordnet ist, und daß sich das Entriegelungsorgan (7), (9) unter der Wirkung der Schubkraft, die das in der Lanze (2) enthaltene Fluid beim Auslaufen darauf ausübt, längs der Achse der Lanze (2) in Auslaufrichtung des Fluids in eine Entriegelungsposition verschiebt, gemäß derer die mechanische Befestigungsverbindung zwischen der Lanze (2) und der Wand (3) aufgehoben ist, wodurch die Lanze (2) in ihre Verwendungsposition verschwenkt werden kann, gemäß derer sie wenigstens unter der Wirkung ihres eigenen Gewichte eine im wesentlichen horizontale Position einnimmt.
  2. Feuerbekämpfungseinrichtung nach Anspruch 1, dadurch gekennzeichnet, daß das Entriegelungsorgan (7) gemäß der Entriegelungsposition von der Lanze (2) getrennt ist.
  3. Feuerbekämpfungseinrichtung nach Anspruch 2, dadurch gekennzeichnet, daß das Entriegelungsorgan (7) des mechanischen Befestigungssystems durch einen abnehmbaren Stopfen zum Verschluß der Ausblasöffnung der Lanze (2) gebildet ist.
  4. Feuerbekämpfungseinrichtung nach Anspruch 3, dadurch gekennzeichnet, daß die mechanische Befestigungssystem durch einen Stopfen (7) und ein Verbindungsteil (8) gebildet ist, das einerseits an diesem Stopfen (7) und andererseits an der Wand (3) befestigt ist.
  5. Feuerbekämpfungseinrichtung nach Anspruch 4, dadurch gekennzeichnet, daß das Verbindungsteil (8) nachgiebig ist.
  6. Feuerbekämpfungseinrichtung nach Anspruch 1, dadurch gekennzeichnet, daß das Entriegelungsorgan (9) des mechanischen Befestigungssystems mit einer axialen Öffnung (12) zum Fluiddurchgang versehen ist, und daß das Organ in Entriegelungsposition mit der Lanze (2) fest verbunden bleibt.
  7. Feuerbekämpfungseinrichtung nach Anspruch 6, dadurch gekennzeichnet, daß das Entriegelungsorgan (9) den Befestigungsmechanismus eine radiale Verlängerung (14) außerhalb der Lanze (2) aufweist, die längs einer zu der Achse der Lanze (2) parallelen Achse vollständig von einer Öffnung (15) durchsetzt ist, und daß der Befestigungsmechanismus einen an der Wand (3) fixierten Stützträger (16) aufweist, der am Ende mit einem vertikalen Metollteil (17) versehen ist, das nach oben vorspringt und in der Wachposition der Lanze (2) in die Öffnung (15) der radialen vorlängerung (14) eingreift, die von dem Metallteil freigegeben wird, wenn das Entriegelungsorgan (9) gemäß seiner Entriegelungsposition angeordnet ist.
  8. Feuerbekämpfungseinrichtung noch Anspruch 6 oder 7, dadurch gekennzeichnet, daß das Entriegelungsorgan (9) einen Schaft (18) aufweist, der gleitend in der Bohrung eines Lagerrings (19) aufgenommen ist, der am Ende der Lanze (2) angebracht ist, wobei der Schaft (18) in der Lanze (2) mit einem Kolben (20) und außerhalb der Lanze (2) mit der radialen Verlängerung (14) vorsehen ist.
  9. Feuerbekämpfungseinrichtung nach Anspruch 8, gekennzeichnet durch eine Druckfeder (22), die um den Schaft des Entriegelungsorgans zwischen dem Ringlager (19) und dem Kolben (20) des Schaftes (18) angeordnet ist, wobei sich das Entriegelungsorgan gegen die von der Druckfeder ausgeübte Wirkung in seine Entriegelungsposition verschiebt.
  10. Feuerbekämpfungseinrichtung nach Anspruch 9, dadurch gekennzeichnet, daß der Lagerring (19) ein Außengewinde aufweist und mit einem Innengewinde in Eingriff steht, das am Ende der Lanze (2) vorgesehen ist.
  11. Feuerbekämpfungseinrichtung nach einem der Ansprüche 6 bis 10, gekennzeichnet durch eine warmbrüchige Ampulle (13) zum Verschluß der axialen Öffnung (12) des Entriegelungsorgans (9), wobei die Ampulle (13) zwischen dem Organ (9) und einer Rückprallplatte (10) angeordnet ist, die von seitlichen Klammern (11) gehalten werden, die an dem Entriegelungsorgan (9) befestigt sind.
  12. Feuerbekämpfungseinrichtung nach einem der vorhergehenden Ansprüche, gekennzeichnet durch ein Anschlagmittel (6) zur Begrenzung der Verschwenkungsbewegung der Lanze (2) nach unten.
  13. Feuerbekämpfungseinrichtung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die Lanze (2) in der Wachposition völlig in einer in der Wand (3) vorgesehenen Nische aufgenommen ist.
  14. Feuerbekämpfungseinrichtung nach einem der vorhergehenden Ansprüche, gekennzeichnet durch ein Federorgan (5), das zwischen der Lanze (2) und der Wand (3) angeordnet ist, um die Verschwenkung der Lanze (2) aus ihrer Wachposition in die Verwendungsposition zu beschleunigen.
EP95400811A 1994-04-12 1995-04-11 Ortsfeste Feuerbekämpfungseinrichtung Expired - Lifetime EP0678311B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9404420A FR2718361B1 (fr) 1994-04-12 1994-04-12 Installation fixe de lutte contre l'incendie.
FR9404420 1994-04-12

Publications (2)

Publication Number Publication Date
EP0678311A1 EP0678311A1 (de) 1995-10-25
EP0678311B1 true EP0678311B1 (de) 1997-01-02

Family

ID=9462085

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95400811A Expired - Lifetime EP0678311B1 (de) 1994-04-12 1995-04-11 Ortsfeste Feuerbekämpfungseinrichtung

Country Status (5)

Country Link
US (1) US5564505A (de)
EP (1) EP0678311B1 (de)
AT (1) ATE146981T1 (de)
DE (1) DE69500121T2 (de)
FR (1) FR2718361B1 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6123154A (en) * 1999-01-08 2000-09-26 Pnm, Inc. Support system attachment mechanism for fire protection sprinklers
US6119784A (en) * 1999-01-08 2000-09-19 Pnm, Inc. Support system for fire protection sprinklers
US6488097B1 (en) * 1999-01-08 2002-12-03 Pnm, Inc. Fire protection sprinkler head support
ES2163374B1 (es) * 2000-05-04 2003-02-16 Thertim S L Disposicion de seguridad contra incendios aplicable para dilatar, demorar controlar y extinguir la accion del fuego mediante humectacion, teniendo el agua como elemento basico extintor.
JP4553496B2 (ja) * 2001-01-24 2010-09-29 株式会社日立国際電気 半導体製造装置のトレーニングシステム
US20060005975A1 (en) * 2002-10-01 2006-01-12 Aqua-Rack Enterprises Firefighting system
MX364612B (es) 2014-06-27 2019-05-02 Anvil Int Llc Abrazadera ajustable y cubo para soporte de manguera flexible.
JP7109988B2 (ja) * 2018-05-16 2022-08-01 日本ドライケミカル株式会社 低層建物用高所消火装置
CN115430088B (zh) * 2022-09-19 2023-07-07 广东鼎亚消防装备有限公司 一种消防灭火用室内灭火装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1102030A (en) * 1911-02-21 1914-06-30 Jonathan H Fleming Fire-extinguishing device.
US3799271A (en) * 1972-08-29 1974-03-26 Safeway Stores Fire extinguishing apparatus and system with automatically lowering sprinkler heads
US5409066A (en) * 1990-05-03 1995-04-25 Agf Manufacturing, Inc. Adjustable sprinkler head positioning assembly
FR2686796B1 (fr) * 1992-02-04 1997-08-01 Alain Moliere Dispositif porte-tetes d'aspersion.

Also Published As

Publication number Publication date
EP0678311A1 (de) 1995-10-25
FR2718361A1 (fr) 1995-10-13
DE69500121D1 (de) 1997-02-13
US5564505A (en) 1996-10-15
FR2718361B1 (fr) 1996-08-23
ATE146981T1 (de) 1997-01-15
DE69500121T2 (de) 1997-07-17

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