EP1170569A2 - Vorrichtung zum Überwachen des Verhaltens eines Metallbehälters, der selbstentzündliches Material beinhaltet, für den Fall eines äusseren Brandes - Google Patents

Vorrichtung zum Überwachen des Verhaltens eines Metallbehälters, der selbstentzündliches Material beinhaltet, für den Fall eines äusseren Brandes Download PDF

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Publication number
EP1170569A2
EP1170569A2 EP01401694A EP01401694A EP1170569A2 EP 1170569 A2 EP1170569 A2 EP 1170569A2 EP 01401694 A EP01401694 A EP 01401694A EP 01401694 A EP01401694 A EP 01401694A EP 1170569 A2 EP1170569 A2 EP 1170569A2
Authority
EP
European Patent Office
Prior art keywords
enclosure
behaviour
case
external fire
under control
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Withdrawn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
EP01401694A
Other languages
English (en)
French (fr)
Other versions
EP1170569A3 (de
Inventor
Olivier Thales Intellectual Property Dassis
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.)
Protac
Original Assignee
Protac
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 Protac filed Critical Protac
Publication of EP1170569A2 publication Critical patent/EP1170569A2/de
Publication of EP1170569A3 publication Critical patent/EP1170569A3/de
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B39/00—Packaging or storage of ammunition or explosive charges; Safety features thereof; Cartridge belts or bags
    • F42B39/20—Packages or ammunition having valves for pressure-equalising; Packages or ammunition having plugs for pressure release, e.g. meltable ; Blow-out panels; Venting arrangements

Definitions

  • the present invention relates to a device controlling the behavior of a metal enclosure containing materials spontaneously flammable in the event of an outdoor fire.
  • the subject of the present invention is a device making it possible to control the behavior of a metal enclosure containing materials spontaneously flammable, in case of outdoor fire, without risk of violent projection of large fragments of the enclosure, this device being simple to adapt to different kinds of speakers, while being inexpensive, and effective in almost all cases.
  • the device according to the invention comprises, in the wall of the enclosure, at least one weakening zone which does not affect the qualities mechanical enclosure under normal operating conditions.
  • the present invention is described below with reference to a missile booster subjected to fire in its storage hangar accidental, but it is understood that it is not limited to this alone application, and that it can be implemented in other applications comprising a metal enclosure, already under internal pressure, or containing products which can put it under normal pressure, and overpressure in the event of an accident, this overpressure causing the explosion of the enclosure with violent projection of significant fragments of this enclosure.
  • the propellant 1 shown in the single figure of the drawing essentially comprises a cylindrical metallic enclosure 2, generally made of steel inside which a charge of solid propellant 3 inside which a coaxial central channel is formed 4, intended to allow the radial combustion of the propellant 3 over the entire length of channel 4.
  • a bonding agent says: "liner”
  • liner is generally made of polybutadiene or polyurethane.
  • each embrittlement zone which, in normal times (in absence of surrounding fire), do not degrade the mechanical qualities of the enclosure, that is to say that the behavior of the propellant in normal operation (propelling a missile, for example) is not not changed.
  • these areas of each embrittlement comprises a hole 6 of small diameter (for example 3). for an enclosure with a diameter of approximately 160 mm, the number of these holes is about 5 and they are evenly distributed over the entire surface enclosure device.
  • Each of these holes can be, like shown in the drawing, a through hole, closed by a plug 7 forced into the hole and can be ejected when the pressure interior exceeds a determined threshold.
  • This plug can be made of material fuse at a temperature significantly lower than the melting temperature of the enclosure material 2.
  • This fusible material may for example be of tin.
  • the holes 6 are blind holes (counterbores) made from outside the enclosure, or many rectilinear, polygonal or circular notches made on the outer peripheral face of the enclosure, and whose depth is less than the thickness of the enclosure.
  • the enclosure of the invention When the enclosure of the invention is subjected to a fire outside, the heating of its wall 2 causes the spontaneous inflammation of the propellant 3.
  • the gases generated by this ignition cause the pressure inside the enclosure.
  • the shutters 7 of the orifices 6 are ejected (or melt under the effect heat if they are made of fusible material at such a temperature). In the blind or notched holes, these drop out well before the internal pressure does not reach a value that can cause the explosion of the enclosure.
  • the exhaust of hot combustion gases through the orifices thus cleared heats the edges of these orifices, which enlarges them and allows faster evacuation of gases.
  • the enclosure can be covered with an insulator thermal (paint or layer of insulating material) in order to adapt the behavior of embrittlement zones at changes in temperature the enclosure, by delaying this rise in temperature.
  • an insulator thermal paint or layer of insulating material

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Radar Systems Or Details Thereof (AREA)
EP01401694A 2000-06-30 2001-06-26 Vorrichtung zum Überwachen des Verhaltens eines Metallbehälters, der selbstentzündliches Material beinhaltet, für den Fall eines äusseren Brandes Withdrawn EP1170569A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0008517 2000-06-30
FR0008517A FR2811074B1 (fr) 2000-06-30 2000-06-30 Dispositif maitrisant le comportement d'une enceinte metallique, contenant des matieres spontanement inflammables, en cas d'incendie exterieur

Publications (2)

Publication Number Publication Date
EP1170569A2 true EP1170569A2 (de) 2002-01-09
EP1170569A3 EP1170569A3 (de) 2002-04-03

Family

ID=8851962

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01401694A Withdrawn EP1170569A3 (de) 2000-06-30 2001-06-26 Vorrichtung zum Überwachen des Verhaltens eines Metallbehälters, der selbstentzündliches Material beinhaltet, für den Fall eines äusseren Brandes

Country Status (4)

Country Link
US (1) US20020020454A1 (de)
EP (1) EP1170569A3 (de)
FR (1) FR2811074B1 (de)
NO (1) NO20013224L (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2777960C1 (ru) * 2022-01-12 2022-08-12 Российская Федерация, от имени которой выступает Государственная корпорация по атомной энергии "Росатом" (Госкорпорация "Росатом") Способ обеспечения безопасности обращения с взрывоопасным изделием

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2357845T3 (es) * 2004-04-08 2011-05-03 Rheinmetall Waffe Munition Gmbh Munición de cartucho, especialmente de medio calibre.
US9964387B2 (en) * 2009-08-19 2018-05-08 Orbital Atk, Inc. Insensitive munitions swaged vent plug
CN104848755A (zh) * 2015-05-11 2015-08-19 河南理工大学 一种用于爆炸器材性能实验的爆炸硐室

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4084512A (en) * 1976-10-18 1978-04-18 The United States Of America As Represented By The Secretary Of The Navy Pressure relief construction for controlled combustion of ordnance items
FR2627272A1 (fr) * 1988-02-11 1989-08-18 France Etat Armement Enveloppe metallique d'une munition destinee a contenir une charge explosive confinee et procede pour sa fabrication
EP0559436A1 (de) * 1992-03-02 1993-09-08 Thiokol Corporation Hülle für Festtreibstoffraketenmotor, wobei diese Hülle ein Material enthält, das bei ungewollten Temperaturen oberhalb den normalen Lagerungstemperaturen durchschmelzt
US5564272A (en) * 1994-07-29 1996-10-15 Thiokol Corporation Slotted hybrid pressure vessel

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4084512A (en) * 1976-10-18 1978-04-18 The United States Of America As Represented By The Secretary Of The Navy Pressure relief construction for controlled combustion of ordnance items
FR2627272A1 (fr) * 1988-02-11 1989-08-18 France Etat Armement Enveloppe metallique d'une munition destinee a contenir une charge explosive confinee et procede pour sa fabrication
EP0559436A1 (de) * 1992-03-02 1993-09-08 Thiokol Corporation Hülle für Festtreibstoffraketenmotor, wobei diese Hülle ein Material enthält, das bei ungewollten Temperaturen oberhalb den normalen Lagerungstemperaturen durchschmelzt
US5564272A (en) * 1994-07-29 1996-10-15 Thiokol Corporation Slotted hybrid pressure vessel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2777960C1 (ru) * 2022-01-12 2022-08-12 Российская Федерация, от имени которой выступает Государственная корпорация по атомной энергии "Росатом" (Госкорпорация "Росатом") Способ обеспечения безопасности обращения с взрывоопасным изделием

Also Published As

Publication number Publication date
FR2811074A1 (fr) 2002-01-04
US20020020454A1 (en) 2002-02-21
EP1170569A3 (de) 2002-04-03
FR2811074B1 (fr) 2003-02-14
NO20013224D0 (no) 2001-06-27
NO20013224L (no) 2001-12-31

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