EP1166824A2 - Soupape de décharge pour l'éjection d'un fluide extincteur - Google Patents

Soupape de décharge pour l'éjection d'un fluide extincteur Download PDF

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Publication number
EP1166824A2
EP1166824A2 EP01112785A EP01112785A EP1166824A2 EP 1166824 A2 EP1166824 A2 EP 1166824A2 EP 01112785 A EP01112785 A EP 01112785A EP 01112785 A EP01112785 A EP 01112785A EP 1166824 A2 EP1166824 A2 EP 1166824A2
Authority
EP
European Patent Office
Prior art keywords
valve
discharge
extinguishing fluid
nozzle
actuator
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.)
Withdrawn
Application number
EP01112785A
Other languages
German (de)
English (en)
Other versions
EP1166824A3 (fr
Inventor
Giancarlo Bianchi
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.)
VESTA Srl
Original Assignee
VESTA Srl
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 VESTA Srl filed Critical VESTA Srl
Publication of EP1166824A2 publication Critical patent/EP1166824A2/fr
Publication of EP1166824A3 publication Critical patent/EP1166824A3/fr
Withdrawn legal-status Critical Current

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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
    • A62C37/14—Releasing means, e.g. electrically released heat-sensitive with frangible vessels

Definitions

  • the present invention refers to a discharge valve for the discharge of extinguishing fluid.
  • Fire-fighting systems consist of one or more extruded cylinders connected to an extinguishing fluid distribution line which terminates in discharge nozzles for saturation of the environment to be protected.
  • Activation of said systems takes place by means of a dedicated detector system consisting of a control station comprising optical smoke, flame and/or heat detectors.
  • a dedicated detector system consisting of a control station comprising optical smoke, flame and/or heat detectors.
  • the control station activates discharge of the extinguishing fluid contained in the cylinder.
  • the extinguishing fluid thus reaches the discharge nozzles through the distribution line and is released, saturating the protected environment.
  • the object of the present invention is to eliminate the drawbacks of the prior art by providing a discharge valve for discharge of extinguishing fluid that is economical and simple to make.
  • Another object of the present invention is to provide such a discharge valve for the discharge of extinguishing fluid that is versatile and safe.
  • the discharge valve for extinguishing fluid provides a bulb inside the discharge nozzle which supports a closure plate to prevent the outflow of extinguishing fluid into the discharge nozzle.
  • the bulb is sensitive to temperature. When the temperature detected by the bulb reaches a certain threshold (68°C), the bulb is caused to break and consequently the closure plate falls inside the discharge nozzle causing the passage of extinguishing fluid into the discharge nozzle and thus the discharge of extinguishing fluid through the holes of the discharge nozzle.
  • a certain threshold 68°C
  • the discharge valve for extinguishing fluid according to the invention does not have any fire detection system or distribution line to carry the extinguishing fluid to a discharge nozzle. Consequently it is extremely simple and economical.
  • a discharge valve for extinguishing fluid according to the invention designated as a whole with reference numeral 1, is described with the aid of the figures.
  • the valve 1 can be installed on a tank 2.
  • the tank 2 contains extinguishing fluid, for example fluid of the liquid halogen type.
  • the tank 2 has a capacity of about 14 litres and has brackets 3, disposed in the upper wall thereof, for fixing to a roof or to the upper part of a supporting frame.
  • the valve 1 is disposed in the lower wall of the tank 2 for delivery of the extinguishing fluid into the environment beneath.
  • the valve 1 can obviously be installed on tanks with different shapes and capacities, such as, for example, tanks in the form of cylinders with a capacity of six litres and large tanks with a capacity of 25 litres.
  • the valve 1 comprises a body 10 in nickel-plated brass.
  • the body 10 has a substantially cylindrical mouth 11 terminating in an annular abutment surface 20 which extends radially.
  • the mouth 11 has an outer thread 13 to engage with an inner thread of an outlet duct 14 ( Figure 1) provided in the lower part of the tank 2.
  • a gasket 15 of the OR type is disposed between the outlet duct 14 of the tank and the mouth 13 of the valve and lies in the angle between the mouth 11 and the abutment surface 20.
  • the body 10 In its bottom part the body 10 has a hollow cylindrical connector 26 coaxial to the mouth 11.
  • the connector 26 has an outer thread for engagement with the inner thread of a discharge nozzle 27.
  • the mouth 13 defines an inlet duct 12 that continues with a tapered narrowing duct 16 which communicates with an oblique duct 17 inside the connector for pressure gauge 23 and a radial duct 18 inside the connector 24 for charging valve 25.
  • the sensitive part 22 of the pressure gauge 23, being situated inside the duct 17, can measure the pressure of the fluid inside the tank 2. In fact the fluid inside the tank 2 reaches the sensitive part 22 of the pressure gauge through the ducts 14, 12, 16 and 17.
  • the charging valve 25 can be connected to an extinguishing fluid distributor.
  • the extinguishing fluid from the distributor enters the tank 2 through the ducts 18, 16, 12 and 14.
  • the discharge nozzle 27 comprises a substantially cylindrical body, hollow on the inside, open in its upper surface to receive the connector 26 of the valve body 10.
  • the nozzle 27 has a threaded central hole 28 to receive the shank of a bolt 29.
  • the bolt 29 is tightened, the upper end of the shank reaches a central area inside the nozzle 27.
  • a bulb 30 is disposed in the upper part of the shank of the bolt 29.
  • the bulb 30 is a heat sensor that is activated and breaks when the temperature reaches about 68°C.
  • the bulb 30 has a point 31 with a smaller diameter than the body.
  • a closing plate 30 is positioned above the bulb 30.
  • the plate 32 has a cavity 33 which is positioned above the point 31 of the bulb.
  • a gasket 34 of the OR type is interposed between the side wall of the plate 32 and the inner side wall of the body 10 of the valve. In this manner the extinguishing fluid provided within the ducts 12, 16 of the valve body 10 cannot enter into the nozzle 27.
  • the nozzle 27 has two hubs 40, 41 in the side wall, disposed in diametrically opposite positions.
  • the hubs 40, 41 define two apertures 42, 43 to receive a manual actuator 44 and an electrical "protractor" actuator 45, respectively.
  • the manual actuator 44 has a lever 46 which protrudes outward from the valve 1 so as to be able to be operated manually by a user.
  • the lever 46 pushes a small piston 47 disposed inside the aperture 42, radially with respect to the axis of the nozzle 27.
  • the small piston 47 passes from a retracted position to an extracted position and strikes against the bulb 30 disposed axially in a central position in the nozzle 27, causing breakage thereof. In this manner the stop plate 32 supported by the bulb 30 falls inside the nozzle 27, allowing the extinguishing fluid to pass inside the body of the nozzle.
  • the protractor actuator 45 contains an explosive capsule 48 inserted in the aperture 43. Explosion of the capsule 48 causes the bulb 30 to break and the stop plate 32 to fall inside the nozzle with the consequent discharge of the extinguishing fluid. Operation of the protractor 45 takes place by means of electrical cables 49 which receive a control signal given by the user by means of the push button of a switch or through a remote control. Operation of the protractor can of course be automatic and controlled from control station when certain threshold values are exceeded.
  • valve intervenes through breakage of the bulb when the temperature reaches about 68°C, as stated previously.
  • the nozzle 27 has thirty-four radial holes 50 for discharge of the extinguishing fluid, arranged in four rows A, B, C and D, disposed circumferentially on the side surface.
  • Row A has 12 equidistant holes at an angle of 30°.
  • Row B has 10 equidistant holes at an angle of 30° leaving out the two hubs 40 and 41.
  • Row C has 6 equidistant holes at an angle of 30° leaving out the two hubs 40 and 41.
  • Row D has 6 equidistant holes at an angle of 30° leaving out the two hubs 40 and 41.
  • the nozzle 27 may be of the closed type and discharge will take place through one of the two apertures 40, 41, intended respectively for the manual actuator 44 and the protractor 45.

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Lift Valve (AREA)
  • Nozzles (AREA)
  • Safety Valves (AREA)
  • Fluid-Driven Valves (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
EP01112785A 2000-06-20 2001-05-28 Soupape de décharge pour l'éjection d'un fluide extincteur Withdrawn EP1166824A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI001384 2000-06-20
IT2000MI001384A ITMI20001384A1 (it) 2000-06-20 2000-06-20 Valvola di scarica per la scarica di fluido estinguente.

Publications (2)

Publication Number Publication Date
EP1166824A2 true EP1166824A2 (fr) 2002-01-02
EP1166824A3 EP1166824A3 (fr) 2002-08-14

Family

ID=11445301

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01112785A Withdrawn EP1166824A3 (fr) 2000-06-20 2001-05-28 Soupape de décharge pour l'éjection d'un fluide extincteur

Country Status (2)

Country Link
EP (1) EP1166824A3 (fr)
IT (1) ITMI20001384A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005096985A1 (fr) * 2004-04-06 2005-10-20 Willem Mennega Dispositif de distribution
US20190388720A1 (en) * 2013-07-12 2019-12-26 Fire Sprinkler Technologies Pty Ltd Tool and Method for Draining a Fire Sprinkler System and a Fire Sprinkler

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1399749A (en) * 1971-07-12 1975-07-02 Graviner Ltd Fire extinguishers and fire extinguishing systems
FR2213642A5 (fr) * 1973-01-10 1974-08-02 Fabricat Entretien Materiel
CH620128A5 (en) * 1977-04-05 1980-11-14 Cerberus Ag Triggering device for a valve in a fire-extinguishing system
SE413579B (sv) * 1977-10-20 1980-06-09 Gw Sprinkler As Vetskespridare for en eldsleckningsanleggning
SE413626B (sv) * 1977-11-23 1980-06-16 Bofors Ab Sett och anordning for att utlosa en brandskyddssprinkler
US4436159A (en) * 1981-05-01 1984-03-13 Kidde, Inc. Manual/electric activated squib actuated discharge valve for fire extinguishers
GB2214806B (en) * 1988-02-04 1992-01-02 Fire Fighting Enterprises Frangible-bulb sprinklers
FR2704436B1 (fr) * 1993-04-27 1995-07-21 Eurofeu Sa Dispositif de declenchement auxiliaire pour extincteur muni d'une vanne a ampoule en materiau thermocassable.
DE4428308C2 (de) * 1994-08-10 1999-03-04 Peter Dr Ing Lell Sprinkleranlage

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005096985A1 (fr) * 2004-04-06 2005-10-20 Willem Mennega Dispositif de distribution
US20190388720A1 (en) * 2013-07-12 2019-12-26 Fire Sprinkler Technologies Pty Ltd Tool and Method for Draining a Fire Sprinkler System and a Fire Sprinkler

Also Published As

Publication number Publication date
ITMI20001384A0 (it) 2000-06-20
EP1166824A3 (fr) 2002-08-14
ITMI20001384A1 (it) 2001-12-20

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