WO2026077507A1 - Vanne automatique pour systèmes de lutte contre l'incendie et d'extinction d'incendie - Google Patents

Vanne automatique pour systèmes de lutte contre l'incendie et d'extinction d'incendie

Info

Publication number
WO2026077507A1
WO2026077507A1 PCT/DE2025/100939 DE2025100939W WO2026077507A1 WO 2026077507 A1 WO2026077507 A1 WO 2026077507A1 DE 2025100939 W DE2025100939 W DE 2025100939W WO 2026077507 A1 WO2026077507 A1 WO 2026077507A1
Authority
WO
WIPO (PCT)
Prior art keywords
valve body
bore
piston
valve
cover
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.)
Pending
Application number
PCT/DE2025/100939
Other languages
German (de)
English (en)
Inventor
Mario Sauer
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.)
Powertech International GmbH
Original Assignee
Powertech International GmbH
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 Powertech International GmbH filed Critical Powertech International GmbH
Publication of WO2026077507A1 publication Critical patent/WO2026077507A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C35/00—Permanently-installed equipment
    • A62C35/58—Pipe-line systems
    • A62C35/68—Details, e.g. of pipes or valve systems
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C37/00—Control of fire-fighting equipment

Definitions

  • the invention relates to an automatic valve for fire fighting and fire suppression systems.
  • valves Another problem with known state-of-the-art valves concerns the potential ingress of extinguishing agents from below, under the piston, and even above it (and ultimately into the pneumatic detection line). To prevent this unwanted ingress, existing valves often use check valves (which make the system even more complex and therefore more prone to failure) or have a larger bore, typically around 0.5 mm, which may not be able to guarantee the required and precise throttling of the extinguishing agent flow.
  • valve usually has to be removed after activation in order to refill the pressure vessel.
  • valve bodies which are typically two-part, are screwed together after the piston is inserted and additionally glued or crimped for sealing. Opening the valve body is then impossible. The entire valve must be replaced after each malfunction or normal activation.
  • the invention is based on the objective of providing a valve that does not have the disadvantages of the prior art.
  • a circumferential groove for receiving a sealing ring is provided at the end of the cover, extending axially towards the cover.
  • the sealing ring can be an O-ring made of an elastomer.
  • a two-part valve head is screwed together after the piston is inserted and additionally bonded/pressed together for sealing. Opening the valve body is then no longer possible; instead, it must be replaced without replacement in the event of normal or faulty activation.
  • the cover design allows the cover to be easily unscrewed in the event of normal or faulty activation, the valve head to be serviced, and then screwed back on with a new O-ring. This significantly reduces maintenance time because the entire valve body does not need to be replaced, and the connections on the valve body do not need to be unscrewed. The substantial reduction in maintenance time and the reuse of the valve body are therefore very sustainable and offer the customer immense cost advantages.
  • the invention relates to a fire-fighting and fire-suppression system with at least one valve as previously described, wherein at least one extinguishing line, one detection line, and one pressure vessel are connected to the valve body, the detection line being pneumatically connected to the valve body via the bore in the cover, the extinguishing line via at least one connection bore, and the pressure vessel via the connection end, wherein, in normal operation, the piston seals the at least one connection bore to the extinguishing line with its circumferential surface.
  • the advantages and embodiments of the valve which are applicable analogously to the fire-fighting and fire-suppression system.
  • Figure 4 shows a side view of a piston.
  • Figures 1 and 2 show an embodiment of a valve.
  • the valve 1 comprises a one-piece valve body 2 with a cover end 3 for connection to a cover 4 and a connection end 5 opposite the cover end 3.
  • the valve body 2 has a longitudinal bore 6 extending along its longitudinal axis.
  • the longitudinal bore 6 is preferably cylindrical.
  • Corresponding connection options such as threads, push-fit connections, or the like, can be provided and are known to those skilled in the art.
  • Such connection bores 7 include, for example, but are not limited to, connections for extinguishing agents, a connection for a detection line, and a connection for a pressure measuring device.
  • connection end 5 can include a thread through which the valve 1 can be connected to a suction pipe or suction pipe assembly of a pressure vessel, in particular a fire extinguishing agent tank.
  • the suction pipe can be attached to the suction pipe assembly by means of an internal thread.
  • the suction pipe assembly can be designed to be long enough to function as a suction pipe.
  • the suction pipe assembly can be screwed or pressed into the bore of the connection end.
  • the bore of the connection end 5 is aligned coaxially with the longitudinal bore 6 of the valve body 2.
  • connection end 5 has a smaller inner diameter than the longitudinal bore 6 of the valve body 2. This forms a circumferential edge 8 located between the longitudinal bore 6 of the valve body 2 and the bore of the connection end 5. The edge 8 lies axially below a connection bore 7, which is specifically intended for connecting a fire extinguishing line.
  • the cover 4 can be reversibly connected to the valve body 2 by means of fasteners.
  • the valve body 2 can have corresponding threaded bores 9 into which, for example, screws guided through bores 10 in the cover can be inserted.
  • the valve body 2 more precisely in the cover end 3, pointing axially towards the cover 4, there is a circumferential groove 11 for receiving a sealing ring. This allows the cover 4 to be connected to the valve body 2 in a sealing manner.
  • the cover 2 includes an off-center bore 12 that projects into the valve body 2 when the cover 4 is connected to the valve body 2.
  • the bore 12 may have an internal thread. The pneumatic connection of the detection line is possible via the bore 12.
  • Figure 4 shows a preferred piston 13 in a side view.
  • the piston 13 is, for example, cylindrically shaped and has an end near the cover and an end near the connection end, particularly further from the cover.
  • a central region 14 of the piston 13 is cylindrically shaped and is flanked by two circumferential grooves 15 or constrictions for receiving a sealing element that can be brought into operative contact with an inner circumferential surface of the valve body 2.
  • the diameter of the central region 14 is preferably constant over the length of the piston 13.
  • the outer contour of the piston 13 is preferably designed to match the contour of the longitudinal bore 6, so that the piston 13 extends axially to the longitudinal axis of the valve body 2.
  • POWERTECH INTERNATIONAL GMBH P31 P005 PCT of the longitudinal bore 6 is movable between a first and a second end position. It is understood by those skilled in the art that particularly unstable intermediate positions exist between the two end positions.
  • the grooves 15 are located at the end of the piston 13 closest to the cover and at the end closest to the connection, and particularly at the end furthest from the cover.
  • the sealing element (not shown) can be made of an elastomer as an O-ring and is preferably designed such that its diameter is larger than the diameter of the respective groove 15, so that the sealing element projects beyond the circumferential surface of the central region 14 of the piston 13.
  • the sealing elements thus form a seal against the inner surface of the longitudinal bore 6.
  • the grooves 15 are preferably of the same size. The same applies to the sealing elements that can be installed therein. Furthermore, the distance of the grooves 15 to a central axis that runs transversely to the longitudinal axis of the piston 13 is essentially the same.
  • the grooves 15 and their position in the piston 13 are preferably mirror-symmetrical with respect to the aforementioned central axis.
  • the ends of the piston 13, that is, the end near the lid and the end near the connection, in particular the end far from the lid, are bounded by a circumferential rim 16, which forms the free end of the piston 13.
  • the piston 13 is penetrated essentially axially along its central axis by a channel 17, which is designed as a stepped bore configuration.
  • the channel 17, according to the design shown, essentially has two bores, the diameter of the smaller bore being smaller than the diameter of the larger bore.
  • the transition between the bores forming the channel 17 can be conical.
  • valve 1 At least one extinguishing line is connected to valve 1 via the corresponding connection bore 7 projecting into the valve body 2.
  • a POWERTECH INTERNATIONAL GMBH P31 P005 PCT Above this, a POWERTECH INTERNATIONAL GMBH P31 P005 PCT
  • a pressure measuring device is connected to a connection bore 7.
  • a detection line is pneumatically connected to the valve body 2 via the bore 10 in the cover 4.
  • an extinguishing agent container is pneumatically connected to the valve body 2 via the connection end 5.
  • the piston 13 is movably mounted in the valve body 2, with the sealing material in the grooves 15 being in operative contact with the inner surface of the valve body 2.
  • valve 1 When the valve 1 is connected to a fire suppression and extinguishing system (not shown) as described, the preferred design of the valve 1 causes the piston 13 to be pressed downwards in a high-pressure state against the edge 8 formed by the connection end 5, which thus acts as an axial stop, and the piston 13 is in its first stable end position.
  • the pressure required for this is generated, for example, by a gas, such as nitrogen, introduced into the detection line.
  • the piston 13 seals against the suction pipe assembly, preventing any extinguishing agent from escaping the pressure vessel.
  • the pneumatic area of the end of the piston 13 closest to the connection end, particularly the end furthest from the cover, is smaller than the pneumatic area of the end of the piston 13 closest to the cover, thereby generating a downward force on the piston 13.
  • This state corresponds to normal operation, in which the system is not triggered, i.e., no fire has been detected.
  • the valve body 2 has an upper connection bore 7 for the pressure measuring device and a bore 12 in the cover for the detection line, so that pressurized gas in the detection line cannot escape through the piston 13 and through a connection bore 7 in the valve body 2.
  • the extinguishing agent escaping from the pressure vessel flows through the connection bore 7, opened by the piston 13, into the extinguishing line to extinguish the fire.
  • the valve 1 according to the invention can significantly improve the reliability and efficiency of fire fighting and fire suppression systems. More precisely, the invention is a novel valve configuration that addresses various challenges encountered in existing valves for fire fighting and fire suppression systems.
  • valve 1 Another significant advantage of valve 1 is that it can be reused after activation. It is possible to unscrew the cover 4 and, if necessary, replace components such as the piston 13 and/or the sealing elements. For this purpose, the cover 4 can be removed after disconnecting the detection line and removing the fasteners.
  • a filling device (not shown) with a corresponding filling device connection can be screwed into the bore 12 in the cover 4.
  • the extinguishing agent is conveyed into the pressure vessel via the longitudinal bore 6 of the valve body 2 and the channel 17 extending through the piston 12.
  • a sleeve (not shown) is inserted into the longitudinal bore 6 of the valve body 2, which on the one hand covers the connection bores 7 and on the other hand presses the piston 13 into its first end position.
  • the cover 4 is detached from the valve body 2 and the sleeve is inserted before the cover 4 is reattached to the valve body 2.
  • valve body is positioned and the filling device is connected to the bore 12 in the cover 4.
  • the valve 1 according to the invention thus allows the valves 1 to be reused after activation and the pressure vessels to be filled without removing the valves 1. This represents a significant advantage over valves known from the prior art, since in the latter, the valves and pressure vessels must be replaced after activation.
  • the valve 1 according to the invention allows the pressure vessels to be essentially refilled during operation.
  • the valve 1 according to the invention allows the pressure vessels to be refilled during operation.

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)

Abstract

L'invention concerne une vanne automatique (1) pour systèmes de lutte contre l'incendie et d'extinction d'incendie, comprenant un corps de vanne (2), un piston (13) cylindrique et un couvercle (4). Le corps de vanne (2) comprend un alésage longitudinal (6) central s'étendant le long de son axe longitudinal, dans lequel débouchent des alésages de raccordement (7) s'étendant transversalement à l'axe longitudinal. En outre, le corps de vanne (2) comporte une extrémité de raccordement (5) destinée à être reliée de manière libérable à un récipient sous pression et une extrémité de couvercle (3), opposée à l'extrémité de raccordement (5), destinée à être reliée de manière libérable au couvercle (4), le couvercle (4) comportant un alésage (10) pourvu d'un filetage intérieur et disposé de manière décalée par rapport à l'axe longitudinal du corps de vanne (2). L'extrémité de raccordement (5) présente un diamètre intérieur qui est inférieur à un diamètre intérieur de l'alésage longitudinal (6) du corps de vanne (2). Le piston (13) peut être déplacé dans l'alésage longitudinal (6) du corps de vanne (2) axialement le long de l'axe longitudinal entre une première et une deuxième position finale, le piston reposant dans sa première position finale sur une arête (8) périphérique formée par l'extrémité de raccordement (5). Le piston (13) possède une extrémité proche du couvercle et une extrémité proche de l'extrémité de raccordement, chaque extrémité comprenant une rainure (15) périphérique destinée à recevoir un moyen d'étanchéité pouvant être mis en contact fonctionnel avec une surface périphérique intérieure du corps de vanne (2).
PCT/DE2025/100939 2024-10-07 2025-10-05 Vanne automatique pour systèmes de lutte contre l'incendie et d'extinction d'incendie Pending WO2026077507A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102024128852.3 2024-10-07
DE102024128852 2024-10-07

Publications (1)

Publication Number Publication Date
WO2026077507A1 true WO2026077507A1 (fr) 2026-04-16

Family

ID=97751253

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2025/100939 Pending WO2026077507A1 (fr) 2024-10-07 2025-10-05 Vanne automatique pour systèmes de lutte contre l'incendie et d'extinction d'incendie

Country Status (2)

Country Link
CN (1) CN121803695A (fr)
WO (1) WO2026077507A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0888152B1 (fr) * 1996-03-20 2001-02-21 Ceodeux-Fire Extinguisher Valves Technology S.A. Extincteur et soupape d'extincteur appropriee
DE102010028858A1 (de) 2010-05-11 2011-11-17 Fiwarec Valves & Regulators Gmbh & Co. Kg Ventil
US20120152571A1 (en) * 2009-06-24 2012-06-21 Luxembourg Patent Company S.A. A high pressure gas discharge valve for a fire-extinguishing or explosion-preventing system
DE102015203486A1 (de) 2015-02-26 2016-09-01 Minimax Gmbh & Co. Kg Ventil zum Schalten von Fluiden, Löschanlage und Verfahren
US20200114186A1 (en) 2017-04-04 2020-04-16 Reacton Fire Suppression Limited Automatic valve
EP3744405A1 (fr) 2019-05-30 2020-12-02 Firetrace Ltd. Améliorations se rapportant à des soupapes pour systèmes d'extinction d'incendie

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0888152B1 (fr) * 1996-03-20 2001-02-21 Ceodeux-Fire Extinguisher Valves Technology S.A. Extincteur et soupape d'extincteur appropriee
US20120152571A1 (en) * 2009-06-24 2012-06-21 Luxembourg Patent Company S.A. A high pressure gas discharge valve for a fire-extinguishing or explosion-preventing system
DE102010028858A1 (de) 2010-05-11 2011-11-17 Fiwarec Valves & Regulators Gmbh & Co. Kg Ventil
DE102015203486A1 (de) 2015-02-26 2016-09-01 Minimax Gmbh & Co. Kg Ventil zum Schalten von Fluiden, Löschanlage und Verfahren
US20200114186A1 (en) 2017-04-04 2020-04-16 Reacton Fire Suppression Limited Automatic valve
EP3744405A1 (fr) 2019-05-30 2020-12-02 Firetrace Ltd. Améliorations se rapportant à des soupapes pour systèmes d'extinction d'incendie

Also Published As

Publication number Publication date
CN121803695A (zh) 2026-04-07

Similar Documents

Publication Publication Date Title
EP3479008B1 (fr) Soupape de réservoir
EP0608491B1 (fr) Limiteur de pression à débit volumineux
DE112011102092B4 (de) Druckreduziervorrichtung
EP2011928B1 (fr) Ensemble anti-retour
DE102015203486A1 (de) Ventil zum Schalten von Fluiden, Löschanlage und Verfahren
DE2162320A1 (fr)
WO2008095549A1 (fr) Procédé et dispositif pour réguler un système d'extinction d'incendie à haute pression de gaz
EP4086491B1 (fr) Agencement de soupape
CH689297A5 (de) Spruehkopf mit druckempfindlichem Ventil.
EP2065100A1 (fr) Dispositif de pulvérisation d'agent séparateur pour une machine de coulée
DE102016205772B4 (de) Schnellöffnungsventil für einen druckbeaufschlagten Löschfluidbehälter und Löschfluidbehälter mit selbigem
DE2920882A1 (de) Ventilanordnung
EP1678434B1 (fr) Soupape, notamment soupape de securite a gaz
EP0289712B1 (fr) Régulateur de pression
WO2026077507A1 (fr) Vanne automatique pour systèmes de lutte contre l'incendie et d'extinction d'incendie
EP4574221A1 (fr) Vanne automatique pour systèmes de lutte contre l'incendie et de lutte contre l'incendie
DE102016002834B4 (de) Ventil mit einer Überwachungsfunktion
DE3239930A1 (de) Hydraulisch steuerbares sperrventil, insbesondere fuer die rohrbruchsicherung
DE19614446C1 (de) Fettpresse
DE3306626C2 (fr)
EP0842102B1 (fr) Dispositif de soufflage avec unite soupape externe
EP0004595A2 (fr) Soupape réglable pour installation d'extinction du feu
DE112015000242B4 (de) Druckreduzier-Ventil für eine Löschanlage sowie Löschanlage mit einem derartigen Druckreduzier-Ventil
EP0246617B1 (fr) Appareil pour impulsions d'air évitant la formation de voûtes dans les silos pour matières en vrac
DE202010013815U1 (de) Elektropneumatisch betätigtes Ventil für die dosierte Abgabe von Flüssigkeiten