EP0094192A1 - Feuerlöschgerät - Google Patents

Feuerlöschgerät Download PDF

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Publication number
EP0094192A1
EP0094192A1 EP83302499A EP83302499A EP0094192A1 EP 0094192 A1 EP0094192 A1 EP 0094192A1 EP 83302499 A EP83302499 A EP 83302499A EP 83302499 A EP83302499 A EP 83302499A EP 0094192 A1 EP0094192 A1 EP 0094192A1
Authority
EP
European Patent Office
Prior art keywords
tube
extinguishant
fire
pressure
specified temperature
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.)
Granted
Application number
EP83302499A
Other languages
English (en)
French (fr)
Other versions
EP0094192B1 (de
Inventor
Raymond Whitlock
Francis Richard Lockwood
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.)
Chubb Fire Ltd
Original Assignee
Chubb Fire Security Ltd
Chubb Fire Ltd
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 Chubb Fire Security Ltd, Chubb Fire Ltd filed Critical Chubb Fire Security Ltd
Publication of EP0094192A1 publication Critical patent/EP0094192A1/de
Application granted granted Critical
Publication of EP0094192B1 publication Critical patent/EP0094192B1/de
Expired legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C35/00—Permanently-installed equipment
    • A62C35/02—Permanently-installed equipment with containers for delivering the extinguishing substance
    • A62C35/10—Containers destroyed or opened by flames or heat

Definitions

  • This invention relates to fire extinguishing apparatus.
  • the invention aims to provide inexpensive automatic fire extinguishing apparatus suitable for the protection of a wide variety of risks, and is especially suited to the automatic extinguishment of fires in relatively confined spaces.
  • Apparatus according to the invention may therefore find particular application eg. inside letter (mail) boxes; night deposit safes; storage cabinets for papers, microfilm or other data media; paint or solvent cabinets; office machines, photo booths or other electrical equipment.
  • letter (mail) boxes e.g. inside letter (mail) boxes; night deposit safes; storage cabinets for papers, microfilm or other data media; paint or solvent cabinets; office machines, photo booths or other electrical equipment.
  • fire extinguishing apparatus comprises a sealed tube of rigid or semi-rigid plastics material which has been pre-formed into a convoluted shape and contains a fluid fire extinguishant under pressure, the said pressure and the strength of the tube being such that in use the tube resists the pressure of the extinguishant at normal ambient temperatures but softens and bursts to release the extinguishant if heated above a specified temperature.
  • Such apparatus therefore acts as a combined fire detector and extinguisher in the sense that if the tube is heated above a specified temperature as a result of an actual or incipient fire condition the tube will automatically burst and release the stored extinguishant.
  • the plastics tube is pre-formed into a helix.
  • This form can be produced by simple and inexpensive winding techniques and the coiled tube can of course store a much greater quantity of extinguishant than a straight length of equivalent tubing extending between the same two end points.
  • the plastics tube is pre-' formed into a flat spiral.
  • PVDF polyvinylidenefluoride
  • the illustrated apparatus comprises a helix of PVDF tubing 1 sealed at each end and containing a quantity of BCF fire extinguishant.
  • the tube 1 is shown mounted to a bracket having feet 3 by which the apparatus can be mounted to a surface in the vicinity of the risk to be protected - eg the top inside surface of a mail box.
  • the tube 1 is attached to the bracket 2 simply by snapping its end coils into grooves 4 in the bracket, the inherent rigidity of the tube being sufficient to maintain the integrity of its pre-formed shape without any firmer means of fixation to the bracket.
  • the bracket 2 could be dispensed with and the coiled tube simply suspended eg by hooks over the risk to be protected.
  • the tubing can be wound in its softened state directly as it is led off the extrusion machine by which it is made, or else a manufactured stock of tubing provided on a large diameter drum can be separately wound after being fed through a heated chamber to raise the tubing to workable temperature .
  • the tubing is preferably wound in a continuous length and then cut into sections for filling and sealing, the total number of coils in an extinguisher of course being open to choice in accordance with the desired capacity of extinguishant.
  • the extinguishant is preferably dyed a conspicuous colour - green to accord with the generally- accepted colour coding for halon extinguishers - so as to be readily visible through the translucent PVDF tube wall and hence assist in checking for serviceability.
  • FIG. la and lb comprises an approximately 2.5m length of 8mm outside diameter, lmm wall thickness PVDF tubing wound into 20 coils of 40mm mean diameter, the overall length of the wound helix being approximately 250mm in its relaxed condition.
  • This tube contains lOOgm of BCF at a fill ratio of approximately 85%, giving an internal pressure of 2 bar at 15°C.
  • the tube 1 is mounted so as to be exposed to the heat of any fire which may develop in the risk to be protected.
  • the pressure of the vaporizing extinguishant stored in the tube increases until the tube wall can no longer withstand the pressure loading and the tube bursts with instantaneous release of the pressurised extinguishant.
  • this occurs at a tube temperature of approximately 180°C and an extinguishant pressure of approximately 7 bar.
  • the burst will occur at that location on the tube where the heat input from the fire is the greatest and which accordingly softens first, all points along the tube being equally temperature sensitive.
  • a coiled tube made and filled in accordance with the foregoing example.
  • the tube was suspended adjacent to the top inside surface of a simulated mail box, the latter comprising a square steel cabinet with each side measuring 600mm and having an internal volume of 0.216m ; an opening measuring 200 x 500mm was provided in the top of the cabinet and a vent slot measuring 5 x 550mm was cut at the bottom edge of one side of the cabinet in order to cause a through draught.
  • a quantity of manilla envelopes were placed in the bottom of the cabinet, sprinkled with 50cc of N Heptane and ignited. The tube ruptured within 14 seconds from ignition of the envelopes and the released BCF extinguished the fire. Damage to the envelopes was slight and the contents of the majority would be readable.
  • FIGs 2a and 2b these illustrate another form of apparatus in accordance with the invention, comprising a flat spiral of PVDF tubing 6 sealed at each end 7 and containing a quantity of BCF fire extinguishant.
  • the tube is shown held in a mounting frame 8 having feet 9 by which the apparatus can be mounted to a surface in the vicinity of the risk to be protected - eg the top inside surface of a shelf or drawer compartment in a data-storage cabinet.
  • the tube 6 is attached to the frame 7 simply by snapping its coils into grooves 10 provided in the "spokes" of the frame.
  • the operation and performance of this embodiment is similar to that already described in relation to Figures la and lb.
  • fire extinguishing apparatus it is-desirable to provide electric switching means which are operated automatically when the apparatus responds to the specified temperature condition, eg to initiate an alarm and/or to isolate the risk from its power source in the case where the risk comprises electrical or electronic equipment.
  • One way to achieve this function is to deposit an electrically-conductive track along the outside of the plastics tube and to monitor the integrity of this track so that breakage of the track on rupture of the tube in response to a fire acts to signal the existence of the fire condition.
  • the internal stresses which are set up in the pre-formed tube when heated could be used to provide a signal.
  • an electrical contact could be deposited upon the flattened end portion of a tube as indicated at 11 in Figure lb. In use this contact is clamped against fixed contacts to complete an electrical circuit.
  • the tube is heated in the event of a fire considerable stresses are set up in the tube as a whole - for example in the case of a coiled tube there will be a tendency to unwind - and it is arranged that the anticipated force on the end of the tube resulting from such reaction displaces the tube end from its clamped position thereby opening the associated electrical circuit and signalling the fire condition.

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)
  • Fire-Extinguishing Compositions (AREA)
EP83302499A 1982-05-12 1983-05-04 Feuerlöschgerät Expired EP0094192B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8213844 1982-05-12
GB8213844 1982-05-12

Publications (2)

Publication Number Publication Date
EP0094192A1 true EP0094192A1 (de) 1983-11-16
EP0094192B1 EP0094192B1 (de) 1986-08-27

Family

ID=10530324

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83302499A Expired EP0094192B1 (de) 1982-05-12 1983-05-04 Feuerlöschgerät

Country Status (6)

Country Link
EP (1) EP0094192B1 (de)
AU (1) AU559770B2 (de)
DE (1) DE3365583D1 (de)
ES (1) ES8407399A1 (de)
GB (1) GB2119646B (de)
ZA (1) ZA833304B (de)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991008022A1 (en) * 1989-11-28 1991-06-13 David Laurence Melton A fire extinguisher
EP2630994A3 (de) * 2012-02-24 2015-08-26 Job Lizenz GmbH & Co. KG Brandschutzeinrichtung für elektrische Kleingeräte
DE102015212032A1 (de) * 2015-06-29 2016-12-29 Siemens Aktiengesellschaft Feuerlöschsystem
WO2017208166A1 (en) * 2016-05-31 2017-12-07 Malovec Roman Automatic fire self-extinguishing device and fire protection method
EP3185972A4 (de) * 2014-08-28 2018-03-21 Firetrace USA, LLC Verfahren und vorrichtung zur herstellung von brandbekämpfungsplatten
CN107961464A (zh) * 2017-12-15 2018-04-27 安徽中科中涣防务装备技术有限公司 一种温度及压力释放的灭火装置
DE102017130785A1 (de) * 2017-12-20 2019-06-27 Eppendorf Ag Temperierte Zentrifuge
EP3463593A4 (de) * 2016-05-31 2020-03-04 Malovec, Roman Automatische feuerselbstlöschende vorrichtung brandschutzverfahren
FR3088209A1 (fr) * 2018-11-12 2020-05-15 Hutchinson Extinction de feu ou limitation de depart de feu

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9026894D0 (en) * 1990-12-11 1991-01-30 Melton David L Damage sensing apparatus
GB2349084B (en) * 1999-03-27 2002-09-18 David Laurence Melton A temperature detector

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2857971A (en) * 1955-05-16 1958-10-28 Ferris Products Co Inc Fire extinguisher
US2917116A (en) * 1958-02-17 1959-12-15 Gerald W Wyant Fire retarding device
US3113624A (en) * 1962-06-21 1963-12-10 John C Haggott Automatic fire protection apparatus
GB1357010A (en) * 1971-05-03 1974-06-19 Chubb Fire Security Ltd Fire-extinguishing apparatus
WO1980001987A1 (en) * 1979-03-19 1980-10-02 B Sperling Fire extinguisher

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2857971A (en) * 1955-05-16 1958-10-28 Ferris Products Co Inc Fire extinguisher
US2917116A (en) * 1958-02-17 1959-12-15 Gerald W Wyant Fire retarding device
US3113624A (en) * 1962-06-21 1963-12-10 John C Haggott Automatic fire protection apparatus
GB1357010A (en) * 1971-05-03 1974-06-19 Chubb Fire Security Ltd Fire-extinguishing apparatus
WO1980001987A1 (en) * 1979-03-19 1980-10-02 B Sperling Fire extinguisher

Cited By (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991008022A1 (en) * 1989-11-28 1991-06-13 David Laurence Melton A fire extinguisher
EP3360605A1 (de) * 2012-02-24 2018-08-15 Job Lizenz GmbH & Co. KG Brandschutzeinrichtung für elektrische kleingeräte
EP2630994A3 (de) * 2012-02-24 2015-08-26 Job Lizenz GmbH & Co. KG Brandschutzeinrichtung für elektrische Kleingeräte
US9579531B2 (en) 2012-02-24 2017-02-28 Job Lizenz Gmbh & Co. Kg Fire protection device for small electrical devices
US9821181B2 (en) 2012-02-24 2017-11-21 Job Lizenz Gmbh & Co. Kg Fire protection device for small electrical devices
US9889324B2 (en) 2012-02-24 2018-02-13 Job Lizenz Gmbh & Co. Kg Fire protection device for small electrical devices
EP3185972A4 (de) * 2014-08-28 2018-03-21 Firetrace USA, LLC Verfahren und vorrichtung zur herstellung von brandbekämpfungsplatten
DE102015212032A1 (de) * 2015-06-29 2016-12-29 Siemens Aktiengesellschaft Feuerlöschsystem
CN109475766A (zh) * 2016-05-31 2019-03-15 R·马罗维克 自动自灭火装置及防火方法
WO2017208166A1 (en) * 2016-05-31 2017-12-07 Malovec Roman Automatic fire self-extinguishing device and fire protection method
EP3463593A4 (de) * 2016-05-31 2020-03-04 Malovec, Roman Automatische feuerselbstlöschende vorrichtung brandschutzverfahren
US11865386B2 (en) 2016-05-31 2024-01-09 Roman Malovec Automatic fire self-extinguishing device and fire protection method
CN107961464A (zh) * 2017-12-15 2018-04-27 安徽中科中涣防务装备技术有限公司 一种温度及压力释放的灭火装置
DE102017130785A1 (de) * 2017-12-20 2019-06-27 Eppendorf Ag Temperierte Zentrifuge
US11577257B2 (en) 2017-12-20 2023-02-14 Eppendorf Ag Temperature-controlled centrifuge with protective gas release in case of rotor crash
FR3088215A1 (fr) * 2018-11-12 2020-05-15 Hutchinson Tuyau extincteur et son procede de fabrication
FR3088211A1 (fr) * 2018-11-12 2020-05-15 Hutchinson Extinction de feu ou limitation de depart de feu
WO2020099394A1 (fr) * 2018-11-12 2020-05-22 Hutchinson Extinction de feu ou limitation de depart de feu
WO2020099392A1 (fr) * 2018-11-12 2020-05-22 Hutchinson Tuyau extincteur pour un compartiment batterie ou un véhicule à moteur
WO2020099395A1 (fr) * 2018-11-12 2020-05-22 Hutchinson Extinction de feu ou limitation de depart de feu
WO2020099396A3 (fr) * 2018-11-12 2020-08-27 Hutchinson Extinction de feu ou limitation de depart de feu
FR3088210A1 (fr) * 2018-11-12 2020-05-15 Hutchinson Extinction de feu ou limitation de depart de feu
FR3088209A1 (fr) * 2018-11-12 2020-05-15 Hutchinson Extinction de feu ou limitation de depart de feu

Also Published As

Publication number Publication date
EP0094192B1 (de) 1986-08-27
ES522289A0 (es) 1984-09-16
AU1448483A (en) 1983-11-17
GB2119646B (en) 1985-12-11
AU559770B2 (en) 1987-03-19
GB2119646A (en) 1983-11-23
DE3365583D1 (en) 1986-10-02
ZA833304B (en) 1984-01-25
GB8312223D0 (en) 1983-06-08
ES8407399A1 (es) 1984-09-16

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