EP1007159B1 - Vorrichtung und verfahren zum sprenglöschen von bränden - Google Patents

Vorrichtung und verfahren zum sprenglöschen von bränden Download PDF

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Publication number
EP1007159B1
EP1007159B1 EP97950055A EP97950055A EP1007159B1 EP 1007159 B1 EP1007159 B1 EP 1007159B1 EP 97950055 A EP97950055 A EP 97950055A EP 97950055 A EP97950055 A EP 97950055A EP 1007159 B1 EP1007159 B1 EP 1007159B1
Authority
EP
European Patent Office
Prior art keywords
hose
extinguishing agent
explosive
diameter
extinguishing
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
EP97950055A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1007159A1 (de
Inventor
Volker SCHÜTTE
Ernst Werner Wagner
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.)
Wagner Alarm- und Sicherungssysteme GmbH
Original Assignee
Wagner Alarm- und Sicherungssysteme 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 Wagner Alarm- und Sicherungssysteme GmbH filed Critical Wagner Alarm- und Sicherungssysteme GmbH
Publication of EP1007159A1 publication Critical patent/EP1007159A1/de
Application granted granted Critical
Publication of EP1007159B1 publication Critical patent/EP1007159B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
    • A62C3/02—Fire prevention, containment or extinguishing specially adapted for particular objects or places for area conflagrations, e.g. forest fires, subterranean fires
    • A62C3/0228—Fire prevention, containment or extinguishing specially adapted for particular objects or places for area conflagrations, e.g. forest fires, subterranean fires with delivery of fire extinguishing material by air or aircraft
    • A62C3/025—Fire extinguishing bombs; Projectiles and launchers therefor
    • 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
    • A62C35/08—Containers destroyed or opened by bursting charge

Definitions

  • the present invention relates to a device for Explosive extinguishing of fires, with two side by side and across Direction of threat arranged flexible, at both ends closable hoses with a first and a second extinguishing agent are filled, and each with an explosive in or on the hoses, by their ignition an impulse is generated and the extinguishing agent becomes a mist atomized and set on fire.
  • the invention also relates to a method for extinguishing fires with the device described.
  • Both such a device and such a method for extinguishing fires is, for example, from the DE 195 00 477 C1 known.
  • the principle of demolition is based on the fact that the detonation of the explosive within or in the vicinity of a homogeneous medium in the form a very high pressure is built up for an extinguishing agent, whereby, for example, through the water in the hose A surge of compression is underway, which gives it an enormous impetus, it atomized into fine particles and from the center of the explosive charge hurls symmetrically into the environment.
  • the advantage of There is atomization of a preferably aqueous extinguishing agent in the very large effective extinguishing agent surface in the ratio to the amount of extinguishing agent used.
  • the present invention addresses this problem, as the task of which it was viewed, both the one mentioned at the beginning and device known from DE 195 00 477 C1 Extinguishing fires as well as the corresponding procedure to develop in such a way that one directed towards the threat concentrated delivery of extinguishing agent with satisfactory Space penetration and surface coverage is possible.
  • the device for Explosive extinguishing of fires of the type mentioned at the beginning designed such that the pulse of the At least the first hose facing away from the danger point is twice as large as the impulse of the danger point facing second hose.
  • the impulse of a body means that Product of its mass and its speed. Further density is the ratio of the mass of a body to its volume. So the impulse is that of the extinguishing agent is given by the explosion, depending on the volume and the Density of the extinguishing agent and the size of the explosive charge, which ensures the speed of the extinguishing agent particles.
  • the object underlying the invention is further achieved by a method adapted to the device according to the invention solved, in which it is essential that the explosives of the the first and the second hose are ignited simultaneously, to achieve the pulse overlay described above.
  • Both the device according to the invention and the method have a number of advantages that affect effectiveness increase significantly when extinguishing fires.
  • On the one hand there is an advantage in targeted ejection of the extinguishing agent itself, with which a more effective use of the Extinguishing agent used can take place.
  • the device and the corresponding method will Extinguishing media disadvantageously symmetrical on both sides of the detonating hose or hoses, and beyond the horizontal lobes of the extinguishing agent are so flat above the floor surface arranged that the effectiveness of the Extinguishing agent use is very unsatisfactory.
  • the extinguishing agent becomes asymmetrical in the direction of the danger point at an optimal angle to the ground surface, so that too an optimal distribution and throwing distance of the extinguishing agent is achieved. It can also be a further advantage by choosing one larger and a smaller explosive hose reached be that the delivered not in the direction of the danger point Extinguishing agent quantity is kept low.
  • a first development of the device according to the invention provides that the pulse I 1 emanating from the first hose is at least approximately twice as large as the pulse I 2 emanating from the second hose.
  • the to Extinguishing agent released by detonating the explosive charge Impulse related to the present invention essentially is a function of the diameter of the hose in which the extinguishing agent is included, also the density ⁇ of the Extinguishing agent, and finally the size of the explosive charge by the amount of disintegrant q.
  • Detonating cords as they are preferably used here come, in Germany only in commercially available sizes of twelve, twenty, forty or one hundred g / m are available there is a need to optimize the use of extinguishing agents, the diameter of the hoses used, the size the explosive charge and the type of extinguishing agent used to coordinate with each other.
  • the extinguishing agent can namely for example from pure water with the known density 1 consist of, or from a pre-expanded extinguishing agent with a much lower density.
  • this development of the device according to the invention allows any size combinations of the two explosive hoses for certain extinguishing agent compositions for which the required amounts of disintegrant can be calculated in good approximation according to the formula given.
  • the other way around when using detonating cords in commercially available discrete sizes, i.e. with a given amount of explosive, the corresponding hose diameter can be determined taking into account the extinguishing agent composition.
  • this further development makes it possible to fill a prefoamed extinguishing agent into an explosive hose instead of pure water, as a result of which the water requirement can be greatly reduced. This is particularly advantageous in inaccessible places, for example in the case of forest fires.
  • the second facing the danger point Hose has a larger diameter than that of the danger point averted first hose.
  • This training has to Background that the second hose, which is closer to the potential or existing source of fire, predominantly acts as the extinguishing agent supplier, while the other (first) Hose essentially acts as a pulse generator.
  • the second hose facing the danger point the mainly acts as a supplier of extinguishing agent, with a smaller one Detonating cord is provided, which is essentially just the task has the second explosive hose at the same time as the ignition the detonating cord of the first hose.
  • the amount of explosive in the first hose is greater than that The amount of explosive in the second hose.
  • the first extinguishing agent is particularly preferably in the first hose of water, and the second extinguishing agent in the second hose a mixture of water and an extinguishing agent, so that the environmental impact and the costs of the Extinguishing agents can be kept as low as possible.
  • the extinguishing agent additive can, for example, be a pure one Foaming agent or a so-called "retarder". Under a Retarders are understood to be either salts which penetrate into the pores of the penetrate burning material and therefore its outgassing prevent, or thickening gels, which are in Art a protective jacket on the burning material and thus to choke the fire.
  • the impulse emanating from the first hose must be greater than the impulse emanating from the second hose
  • the variables which essentially determine the impulse namely the amount of explosive, the diameter and the density of the extinguishing agent the explosive hoses, according to the formula mentioned at the beginning q 1 q 2 ⁇ 4 d 2 d 1 ) 2 ⁇ ⁇ 2 ⁇ 1 be dimensioned, and that the explosives of the first and the second hose (1, 2) are ignited simultaneously.
  • a device for early fire detection includes a sensor, with which the presence of a fire parameter such as smoke or the like at the earliest stage of the emergence of a Fire is detected and an alarm is triggered.
  • Figures 1 and 2 show schematically the explosive pictures at Use of a single explosive hose 1 and two in parallel side by side detonating hoses 1, 2 accordingly the state of the art.
  • Both explosive pictures have in common that the distribution of the extinguishing agent is symmetrical to both Sides of the explosive hoses. It will a vertical lobe 6 and a left horizontal lobe 7 and one right horizontal lobe 8 formed. The horizontal lobes 7, 8 are arranged flat above the floor 9.
  • the only difference between the explosive pictures of Fig. 1 and Fig. 2 in that the vertical lobe 6 when using two Detonating hoses 1, 2 is significantly higher and larger in volume, than when using a single hose according to FIG. 1.
  • FIG. 3 shows a schematic illustration of two identical detonation hoses 1, 2 arranged in parallel and next to one another.
  • the hoses are filled with an extinguishing agent and closed at both ends.
  • An explosive 3, 4 in the form of a flexible detonating cord is arranged in each hose 1, 2.
  • the detonating cords are connected in a manner not shown here to an ignition device with which the explosive charge is ignited, as a result of which the extinguishing agent is atomized into a mist and set on fire.
  • the amount of explosive q 1 of the first hose 1 facing away from the danger point is greater than the amount of explosive q 2 of the second hose 2 facing the danger point (with regard to FIGS. 3 and 4, the danger point is on the right).
  • a greater impulse emanates from the first hose than from the second hose, which leads to the desired direction in the case of the impulse superimposition caused by the detonation of both hoses.
  • FIG. 4 shows a similar schematic illustration of two explosive hoses 1, 2 as in FIG. 3, the explosive hose 1 here having a smaller diameter than the explosive hose 2 to explain the second exemplary embodiment of the invention.
  • the hose 1 contains a first extinguishing agent in the form of pure water
  • the hose 2 contains a second extinguishing agent in the form of a pre-expanded mixture of water and an extinguishing agent additive.
  • both hoses 1, 2 are each equipped with a flexible detonating cord 3, 4, which extend through the entire length of the detonating hoses 1, 2.
  • the ratio of the explosive charge / hose diameter / extinguishing agent density for the use of two explosive hoses 1, 2 arranged in parallel next to one another can be calculated with the aim of achieving a directed ejection of the extinguishing agent when the explosives are detonated.
  • FIG. 5 shows a schematic illustration of an explosive pattern, as can be achieved with the second embodiment of the invention is.
  • it points from the danger point facing away from the first tube 1 a smaller diameter than the second hose facing the danger point 2.
  • the Hose 1 but with a much larger explosive charge equipped.
  • the result in the explosive is a greatly enlarged, to the right against the threat direction 5 directed extinguishing agent lobe 8 by a pulse overlay the one thrown out of both explosive hoses 1, 2 Extinguishing agent is generated.
  • the extinguishing agent leg 8 is a mixture of the vertical lobe 6 and the pure 2 and throws the main mass of the Extinguishing media to the right against the threat direction 5 out.
  • the left horizontal lobe 7 is small remained, which also on a very targeted and effective use of extinguishing agents.
  • the tubes 1, 2 are each equipped with a flexible detonating cord 3, 4 and each filled with an extinguishing agent and closed at their ends.
  • the detonating cords 3, 4 are connected to an ignition device in a manner not shown here. By detonating the detonating cords 3, 4, the extinguishing agents contained in the hoses 1, 2 are atomized into a mist and set on fire.

Landscapes

  • Health & Medical Sciences (AREA)
  • Emergency Management (AREA)
  • Business, Economics & Management (AREA)
  • Public Health (AREA)
  • Forests & Forestry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Ecology (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
  • Fluidized-Bed Combustion And Resonant Combustion (AREA)
  • Heat Treatment Of Articles (AREA)
  • Lubricants (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
EP97950055A 1996-10-30 1997-10-30 Vorrichtung und verfahren zum sprenglöschen von bränden Expired - Lifetime EP1007159B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19643929A DE19643929C2 (de) 1996-10-30 1996-10-30 Vorrichtung und Verfahren zum Sprenglöschen von Bränden
DE19643929 1996-10-30
PCT/EP1997/006013 WO1998018524A1 (de) 1996-10-30 1997-10-30 Vorrichtung und verfahren zum sprenglöschen von bränden

Publications (2)

Publication Number Publication Date
EP1007159A1 EP1007159A1 (de) 2000-06-14
EP1007159B1 true EP1007159B1 (de) 2001-07-18

Family

ID=7809680

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97950055A Expired - Lifetime EP1007159B1 (de) 1996-10-30 1997-10-30 Vorrichtung und verfahren zum sprenglöschen von bränden

Country Status (18)

Country Link
US (1) US6164382A (id)
EP (1) EP1007159B1 (id)
AR (1) AR010257A1 (id)
AU (1) AU719286B2 (id)
CA (1) CA2268976C (id)
DE (1) DE19643929C2 (id)
ES (1) ES2161478T3 (id)
GR (1) GR3036888T3 (id)
HR (1) HRP970572B1 (id)
ID (1) ID18693A (id)
IL (1) IL122061A0 (id)
MY (1) MY133808A (id)
SG (1) SG53115A1 (id)
TR (1) TR199701267A2 (id)
TW (1) TW368423B (id)
WO (1) WO1998018524A1 (id)
YU (1) YU49141B (id)
ZA (1) ZA979677B (id)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7090028B2 (en) * 2001-09-19 2006-08-15 Nanomist Systems, Llc Fire suppression using water mist with ultrafine size droplets
DE10206815B4 (de) * 2002-02-19 2004-02-12 Pinnig, Jörg Vorrichtung und Verfahren zum Sprenglöschen von Bränden
RU2496539C1 (ru) * 2012-05-05 2013-10-27 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Национальный исследовательский Томский государственный университет" (ТГУ) Накладной шнуровой заряд для локализации низовых лесных и степных пожаров
US10653904B2 (en) 2017-12-02 2020-05-19 M-Fire Holdings, Llc Methods of suppressing wild fires raging across regions of land in the direction of prevailing winds by forming anti-fire (AF) chemical fire-breaking systems using environmentally clean anti-fire (AF) liquid spray applied using GPS-tracking techniques
US11865394B2 (en) 2017-12-03 2024-01-09 Mighty Fire Breaker Llc Environmentally-clean biodegradable water-based concentrates for producing fire inhibiting and fire extinguishing liquids for fighting class A and class B fires
US11865390B2 (en) 2017-12-03 2024-01-09 Mighty Fire Breaker Llc Environmentally-clean water-based fire inhibiting biochemical compositions, and methods of and apparatus for applying the same to protect property against wildfire
US11826592B2 (en) 2018-01-09 2023-11-28 Mighty Fire Breaker Llc Process of forming strategic chemical-type wildfire breaks on ground surfaces to proactively prevent fire ignition and flame spread, and reduce the production of smoke in the presence of a wild fire
US11911643B2 (en) 2021-02-04 2024-02-27 Mighty Fire Breaker Llc Environmentally-clean fire inhibiting and extinguishing compositions and products for sorbing flammable liquids while inhibiting ignition and extinguishing fire

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3482637A (en) * 1967-10-20 1969-12-09 Us Interior Process and method for quenching incipient gas-air explosions
US4938293A (en) * 1987-04-29 1990-07-03 Systron Donner Corp. Linear fire extinguisher
US5115867A (en) * 1990-10-30 1992-05-26 Systron Donner, Corporation Dual linear fire extinguisher
US5088560A (en) * 1990-11-01 1992-02-18 Systron Donner Corporation Zero force fire extinguisher
DE19500477C1 (de) * 1994-08-08 1995-11-23 Amrona Ag Verfahren und Vorrichtung zum Löschen von Bränden
GB9505825D0 (en) * 1994-08-15 1995-06-14 Parkes John Improvements in munitions demolition

Also Published As

Publication number Publication date
DE19643929C2 (de) 1998-08-06
MY133808A (en) 2007-11-30
ID18693A (id) 1998-04-30
DE19643929A1 (de) 1998-05-07
SG53115A1 (en) 1998-09-28
CA2268976C (en) 2003-08-12
HRP970572A2 (en) 2000-08-31
GR3036888T3 (en) 2002-01-31
TW368423B (en) 1999-09-01
AU719286B2 (en) 2000-05-04
AU5315198A (en) 1998-05-22
YU49141B (sh) 2004-03-12
YU42597A (sh) 1999-07-28
IL122061A0 (en) 1998-03-10
HRP970572B1 (en) 2001-10-31
CA2268976A1 (en) 1998-05-07
WO1998018524A1 (de) 1998-05-07
ES2161478T3 (es) 2001-12-01
AR010257A1 (es) 2000-06-07
TR199701267A2 (xx) 1998-05-21
US6164382A (en) 2000-12-26
EP1007159A1 (de) 2000-06-14
ZA979677B (en) 1998-05-21

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