EP1112107B1 - Verfahren und vorrichtung zum bekämpfen von bränden - Google Patents

Verfahren und vorrichtung zum bekämpfen von bränden Download PDF

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Publication number
EP1112107B1
EP1112107B1 EP99947328A EP99947328A EP1112107B1 EP 1112107 B1 EP1112107 B1 EP 1112107B1 EP 99947328 A EP99947328 A EP 99947328A EP 99947328 A EP99947328 A EP 99947328A EP 1112107 B1 EP1112107 B1 EP 1112107B1
Authority
EP
European Patent Office
Prior art keywords
extinguisher
jet
foam
extinguishing
fire
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
EP99947328A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1112107A1 (de
Inventor
Dirk K. Sprakel
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.)
Fogtec Brandschutz GmbH and Co KG
Original Assignee
Fogtec Brandschutz GmbH and Co KG
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 Fogtec Brandschutz GmbH and Co KG filed Critical Fogtec Brandschutz GmbH and Co KG
Publication of EP1112107A1 publication Critical patent/EP1112107A1/de
Application granted granted Critical
Publication of EP1112107B1 publication Critical patent/EP1112107B1/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
    • A62C31/00—Delivery of fire-extinguishing material
    • A62C31/02—Nozzles specially adapted for fire-extinguishing
    • A62C31/05—Nozzles specially adapted for fire-extinguishing with two or more outlets
    • A62C31/07—Nozzles specially adapted for fire-extinguishing with two or more outlets for different media

Definitions

  • the invention relates to a method for combating fires, in which a directed extinguishing foam jet is discharged to cover the source of the fire. Moreover, the invention relates to a device which is suitable for carrying out the method. Such devices are used in stationary or mobile fire extinguishing equipment to stifle a fire by a foam, for example, if the use of water as extinguishing liquid is not possible.
  • a device suitable for extinguishing fires with extinguishing foam is known from the British patent specification 1 018 431 known.
  • the device described in this document has a foam tube which surrounds a nozzle body with a cylindrical portion.
  • the nozzle body has a nozzle, is discharged from the extinguishing liquid.
  • the known device has on its rear end face an inlet opening.
  • a plurality of inlet openings are distributed on the cylindrical circumference of the foam tube.
  • the extinguishing foam produced by such a device can be deployed in a directional beam. This has the advantage that the extinguishing foam with relatively high kinetic energy escapes, so that he impinges on the fire site and forms a dense cover after impact, through which the fire is stifled.
  • an extinguishing device in which the extinguishing foam jet is surrounded by an extinguishing mist.
  • the device has an annular nozzle which surrounds the extinguishing foam outlet.
  • the extinguishing mist is generated by making an extinguishing agent jet in the annular nozzle in an annular cross section and then pressed by a plurality of teeth, wherein the jet swirls and disintegrates.
  • the kinetic energy is largely consumed by the sputtering process. Due to the range limitation associated therewith, the possibilities are limited to reliably prevent the spread of a fire.
  • the object of the invention is a method of the type mentioned and one for carrying out the method to provide suitable apparatus which enable the extinguishment of areal spreading fires with reduced risk of fire spread.
  • this object is achieved in that in addition to the extinguishing foam jet, a quenching liquid mist is discharged, which cools the space surrounding the fire volume.
  • the inventive method combines the example of the German Utility Model 295 18 911.8 known extinguishing method using extinguishing fog with the method for deletion by means of an extinguishing foam. It has been shown that the extinguishing mist and the extinguishing foam jet in With regard to the method, this object is achieved by a device according to claim 6 and a method according to claim 1.
  • the inventive method combines the example of the German Utility Model 295 18 911.8 known extinguishing method using extinguishing fog with the method for deletion by means of an extinguishing foam. It has been found that the extinguishing mist and the extinguishing foam jet complement each other in an optimal manner, in particular in the control of large or large fire sources. This happens because on the one hand directly combatted by the use of the directional extinguishing the fire and the fire surface is successively covered with foam. On the other hand is cooled by the extinguishing mist of the gas space surrounding the fire.
  • the extinguishing mist covers a much larger space than the extinguishing foam jet is achieved by the introduction of the extinguishing mist that the ambient temperature of the fire is lowered even in such areas then, if a direct coverage of the fire by the extinguishing foam is not done when Fire in the areas concerned so still burning. A spread of the fire, for example by spontaneous combustion of objects adjacent to the fire due to the high temperatures in the vicinity of the fire is thus avoided.
  • the discharge of the extinguishing mist is carried out selectively as a function of the position of a control device. This makes it possible for the extinguishing agent introduced into the area of the fire (Extinguishing foam / extinguishing liquid mist) depending on the respective fire situation.
  • the foam tube according to the invention can be used particularly advantageously in conjunction with extinguishing devices in which the extinguishing liquid is under high pressure, i. at pressures above 40 bar, is applied.
  • a further advantageous embodiment of the method according to the invention is characterized in that quenching liquid mist is applied in the form of a plurality of individual jets whose respective origin is arranged in the immediate vicinity of the origin of the extinguishing foam jet.
  • quenching liquid mist is applied in the form of a plurality of individual jets whose respective origin is arranged in the immediate vicinity of the origin of the extinguishing foam jet.
  • the method according to the invention can be used particularly effectively when the extinguishing liquid, from which the extinguishing liquid mist is generated, is water.
  • a particularly suitable apparatus for carrying out the method according to the invention which is equipped with an extinguishing nozzle head, which comprises an extinguishing foam generating means for generating a directed extinguishing foam jet, according to the invention is characterized in that the extinguishing nozzle head comprises additional extinguishing nozzles for generating extinguishing liquid mist.
  • the extinguishing nozzle head 1 of the portable extinguisher gun L is rotationally symmetrical and has its End face an end face 2. In the center of the end face 2, a central extinguishing nozzle 3 is arranged. The central extinguishing nozzle 3 is connected to a first supply line 4 of the extinguishing pistol L, which runs in the housing tube R of the extinguishing pistol L.
  • extinguishing nozzle head 1 Formed on the end face 2 of the extinguishing nozzle head 1 is a circumferential inclined surface 5, which recedes relative to the front end face 2 at an angle ⁇ of approximately 45 °.
  • extinguishing nozzles 6 On the inclined surface 4 extinguishing nozzles 6 are arranged, which are connected to a second, also extending in the housing tube R supply line 7 of the extinguishing gun L.
  • the extinguishing nozzles 6 are arranged at regular angular intervals to one another on a circle which is aligned concentrically with the opening of the central extinguishing nozzle 3.
  • the outlet direction of the emerging from them when pressurized with extinguishing liquid jet of fog is directed substantially perpendicular to the inclined surface 5, so that the mist jets of the extinguishing nozzles 5 are directed in substantially the same direction as the axially parallel to the longitudinal axis X of the extinguishing nozzle head 1 emerging beam passing through the central Extinguishing nozzle 3 is generated.
  • the supply lines 4, 7 can be acted on at the same time or individually with extinguishing fluid.
  • the inclined surface 5 is followed by a radially encircling, axially parallel to the longitudinal axis X of the extinguishing nozzle head 1 extending lateral surface 8, on which further, connected to the supply line 7 extinguishing nozzles 9 are arranged.
  • the extinguishing nozzles 9 also give on exposure to extinguishing fluid Extinguishing mist jet off.
  • this has a radially directed to the longitudinal axis X of the extinguishing nozzle head 1 component and directed in the direction of the valve component V, so that the emerging from the extinguishing nozzles 9 Löschnebelstrahlen fill the back and side of the extinguishing gun L surrounding space.
  • a foam tube 11 is attached via a sleeve 10.
  • the foam tube 11 has a nozzle body 12, on which an injector nozzle 13 protruding into the foam tube 11 is formed.
  • the bore 14 of the injector nozzle 13 is connected via a chamber of the nozzle body 11 and the sleeve 10 with the central extinguishing nozzle 3.
  • the supply lines 4 or 7 simultaneously or individually with extinguishing fluid, preferably water, acted upon.
  • the extinguishing fluid in this case has a high pressure of more than 40 bar in both supply lines.
  • the extinguishing nozzles 6 and 9 When the supply line 4 is pressurized, the extinguishing nozzles 6 and 9 generate an extinguishing mist, in which the individual liquid droplets have a low volume and exit in a finely distributed manner with high kinetic energy from the nozzle openings of the extinguishing nozzles 6, 9 into the environment.
  • the mist jets emerging from the obliquely forwardly directed extinguishing nozzles 6 reach the surroundings of the source of the fire and cool the gases present there with evaporation and concomitant displacement of the oxygen. Fill the emerging from the extinguishing nozzles 9 of the lateral surface 8 rays in contrast, the side and rear room with extinguishing mist, so that there is an efficient reduction of the temperature is achieved. In this way, not only the spread of the fire on the cooled area is prevented, but the fire extinguisher serving firefighter simultaneously protected.
  • a directed, mixed with foam-forming additive extinguishing liquid jet is discharged from the central extinguishing nozzle 4, under high pressure from the central extinguishing nozzle 3.
  • This jet enters the chamber of the nozzle body 12 of the jet pipe 11 and is additionally swirled there.
  • the so-swirled extinguishing fluid jet passes through the nozzle bore 13 in the foam tube 11, in which he sucks air on the manner of the Venturi effect on the inlet openings of the foam tube.
  • This air mixes with the finely atomized extinguishing fluid to form a fine-pored foam.
  • This foam exits the foam tube 11 with high kinetic energy and reaches the source of the fire as a directed, compact spray-foam jet.
  • water is preferably used as extinguishing liquid.
  • the foam tube 11 leads to a significant improvement in the throw of emerging from it extinguishing agent jet when the extinguishing agent is no foam-generating additive mixed, but only the extinguishing liquid itself exits the foam tube 12 as a jet of high kinetic energy.
  • the use of the foam tube 12 in the case of pure liquid extinguishing is advantageous if, for example, a directed extinguishing liquid jet is required in order to reach the source of the fire from a greater distance.
  • the concentrated by the foam tube extinguishing liquid jet can be used to achieve a wetting of even deep inside the fires hidden embers by a targeted beam.

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)
  • Respiratory Apparatuses And Protective Means (AREA)
EP99947328A 1998-09-11 1999-09-13 Verfahren und vorrichtung zum bekämpfen von bränden Expired - Lifetime EP1112107B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19841874A DE19841874A1 (de) 1998-09-11 1998-09-11 Verfahren und Vorrichtung zum Bekämpfen von Bränden
DE19841874 1998-09-11
PCT/EP1999/006756 WO2000015301A1 (de) 1998-09-11 1999-09-13 Verfahren und vorrichtung zum bekämpfen von bränden

Publications (2)

Publication Number Publication Date
EP1112107A1 EP1112107A1 (de) 2001-07-04
EP1112107B1 true EP1112107B1 (de) 2009-11-04

Family

ID=7880806

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99947328A Expired - Lifetime EP1112107B1 (de) 1998-09-11 1999-09-13 Verfahren und vorrichtung zum bekämpfen von bränden

Country Status (9)

Country Link
US (1) US6830109B1 (https=)
EP (1) EP1112107B1 (https=)
JP (1) JP2002524220A (https=)
KR (2) KR20010075040A (https=)
CN (1) CN1135124C (https=)
AT (1) ATE447429T1 (https=)
AU (1) AU6082099A (https=)
DE (3) DE19841874A1 (https=)
WO (1) WO2000015301A1 (https=)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100685005B1 (ko) * 2004-06-28 2007-02-20 주식회사 거송시스템 소방장치
CA2861760C (en) * 2011-12-27 2018-02-27 Sung Woo Kim Venturi sprinkler for controlling smoke and apparatus for removing smoke and poisonous gas
CN102886111B (zh) * 2012-09-17 2015-09-09 姬永兴 一种双灭火剂喷射枪及其方法
RU193850U1 (ru) * 2019-04-12 2019-11-19 Общество с ограниченной ответственностью "Ника Системы" Пожарный ствол

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH183335A (de) * 1935-05-08 1936-03-31 Minimax A G Zuerich Verfahren zum Umwandeln von Nassfeuerlöschern in Schaumfeuerlöscher.
DE19519316A1 (de) * 1995-05-26 1996-11-28 Klaus Schaefer Verfahren und Vorrichtung zur Brandbekämpfung
US5590719A (en) * 1991-07-17 1997-01-07 Mcloughlin; John E. Firefighting nozzle with foam injection system

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2527891A (en) 1946-10-01 1950-10-31 Fmc Corp Valved nozzle for fire fighting spray guns
US2928611A (en) 1958-11-17 1960-03-15 Elkhart Brass Mfg Company Fire hose nozzle
GB1018431A (en) * 1963-01-08 1966-01-26 Foamite Ltd Apparatus for producing foam
US3684019A (en) * 1971-05-07 1972-08-15 Howard W Emmons Method for fighting a fire
JPS5797562U (https=) * 1980-12-04 1982-06-15
JPS60119450U (ja) * 1984-01-20 1985-08-12 末永　博敏 消防用放液消火ノズル
JPH0450044Y2 (https=) * 1986-09-10 1992-11-25
JPS63119782A (ja) * 1986-11-10 1988-05-24 能美防災株式会社 消火用ノズル
JPH0315541U (https=) * 1989-06-27 1991-02-15
DK0660754T3 (da) * 1992-09-15 1998-11-02 Goeran Sundholm Dyse med skruefjeder, der bringer væske i hvirvelbevægelse
EP0822849B2 (de) * 1995-04-22 2007-01-24 Fogtec Brandschutz GmbH & Co. KG Transportable löschpistole
DE19514939C2 (de) 1995-04-22 1997-09-18 Kamat Pumpen Gmbh & Co Kg Löschdüsenkopf
DK174899B1 (da) 1997-12-19 2004-02-09 Firexpress Aps Brandslukningsindretning

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH183335A (de) * 1935-05-08 1936-03-31 Minimax A G Zuerich Verfahren zum Umwandeln von Nassfeuerlöschern in Schaumfeuerlöscher.
US5590719A (en) * 1991-07-17 1997-01-07 Mcloughlin; John E. Firefighting nozzle with foam injection system
DE19519316A1 (de) * 1995-05-26 1996-11-28 Klaus Schaefer Verfahren und Vorrichtung zur Brandbekämpfung

Also Published As

Publication number Publication date
WO2000015301A1 (de) 2000-03-23
US6830109B1 (en) 2004-12-14
KR20010075040A (ko) 2001-08-09
JP2002524220A (ja) 2002-08-06
CN1323235A (zh) 2001-11-21
AU6082099A (en) 2000-04-03
KR20070094992A (ko) 2007-09-27
EP1112107A1 (de) 2001-07-04
DE29924875U1 (de) 2006-05-04
ATE447429T1 (de) 2009-11-15
CN1135124C (zh) 2004-01-21
DE59915100D1 (de) 2009-12-17
DE19841874A1 (de) 2000-03-23

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