EP0661081A1 - Procédé et dispositif pour optimaliser la consommation de la substance et/ou du temps d'extinction du feu pour solides et liquides enflammés - Google Patents

Procédé et dispositif pour optimaliser la consommation de la substance et/ou du temps d'extinction du feu pour solides et liquides enflammés Download PDF

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Publication number
EP0661081A1
EP0661081A1 EP94119613A EP94119613A EP0661081A1 EP 0661081 A1 EP0661081 A1 EP 0661081A1 EP 94119613 A EP94119613 A EP 94119613A EP 94119613 A EP94119613 A EP 94119613A EP 0661081 A1 EP0661081 A1 EP 0661081A1
Authority
EP
European Patent Office
Prior art keywords
extinguishing
pressure
fire
nozzle
water
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
EP94119613A
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German (de)
English (en)
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EP0661081B1 (fr
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.)
Siemens AG
Original Assignee
Cerberus AG
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Publication date
Application filed by Cerberus AG filed Critical Cerberus AG
Publication of EP0661081A1 publication Critical patent/EP0661081A1/fr
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Publication of EP0661081B1 publication Critical patent/EP0661081B1/fr
Anticipated expiration legal-status Critical
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Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C99/00—Subject matter not provided for in other groups of this subclass
    • A62C99/0009—Methods of extinguishing or preventing the spread of fire by cooling down or suffocating the flames
    • A62C99/0072—Methods of extinguishing or preventing the spread of fire by cooling down or suffocating the flames using sprayed or atomised water
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C35/00—Permanently-installed equipment
    • A62C35/58—Pipe-line systems
    • A62C35/62—Pipe-line systems dry, i.e. empty of extinguishing material when not in use

Definitions

  • the present invention relates to a method for optimizing the extinguishing agent consumption and / or the extinguishing time in at least one pressure container for storing the extinguishing agent, a pipeline system and a number of extinguishing devices, and a device for carrying out this method.
  • the object of the invention is to create an extinguishing method and an extinguishing device using water which avoid the disadvantages mentioned.
  • the invention is intended to enable complete extinguishing with optimal extinguishing water consumption.
  • the invention is based on extensive thermodynamic and fluid mechanical calculations, which make it possible to determine the fire performance and fire gas development for fires of various types in any room and to calculate the extinguishing parameters necessary for extinguishing. This deletion process is described in claim 1.
  • a device for performing this extinguishing method and preferred embodiments are set out in claims 2 to 5.
  • the development of the fire gas flow is first determined using a fire model.
  • the ascent rates and temperature of the fire gases are determined depending on the burn rate (fire performance), the quality of the fire, the fire area and the room height.
  • a reference case with successful extinguishing is assumed, in which a stack of paper and plastic is available as fire material in an area of 4 m2 in an 8 m high room.
  • Sprinklers with the following sprinkler nozzle conditions are attached to the ceiling of the room: 5 kg / s water flow rate, -15 m / s outlet speed and 2 mm drop size.
  • the burning of the fuel with 20 MJ / kg calorific value was simulated with the following results: maximum gas temperature of 950 ° C, burning rate of 0.51 kg / s and maximum gas velocity of 7.7 m / s.
  • Figure 1a) shows for this reference case the drop in the drop speed as a function of the room height from -15 m / s to -3 m / s.
  • Figure 1b shows the course of the drop temperature from 20 ° C to 74 ° C, where there is no evaporation but an evaporation with a strong cooling effect of the gases.
  • Figure 1c) shows the course of the flue gas temperature to 556 ° C.
  • FIG. 2 shows the simulated behavior of smaller drops with an average diameter of 1.5 mm.
  • the simulation shows that the velocity of drops of this size drops to zero at a height of 3 m and thus the drops are carried away and no deletion can take place.
  • FIG. 3 shows the effect of a lower exit speed of -5 m / s.
  • the simulation shows that the exit speed has a strong impact on the extinguishing ability.
  • the drop speed in turn drops to zero at 3 m above the source of the fire.
  • FIG. 4 shows the behavior of drops sprayed from a lower room height of 4 m.
  • the drops still move at a speed of -1 m / s when they hit the source of the fire and cause extinguishing.
  • FIG. 5 shows experimentally determined values of the extinguishing parameters effective pressure at the nozzle and water throughput for a number of different nozzle types and fires used, namely wood, petrol, ethanol, PET and heptane fires.
  • the nozzle types used were, for example, full-cone, hollow-cone (swirl chamber), multi-hole and single-hole nozzles.
  • the values within the drawn frame led to a successful extinction within a period of 5-15 seconds after the start of the extinguishing and correspond to the values that were calculated by the calculations for the given room and fire.
  • the values outside the frame have no complete deletion.
  • FIG. 6 illustrates a device suitable for carrying out the method according to the invention as an exemplary embodiment of the device according to the invention.
  • the fire detector 4 triggers the actuation force for all container valves 2 via the extinguishing center 3.
  • the water is pressed from the gas cushions in the bottles through the immersion tubes 5 into the collecting tube 6.
  • the collecting tube is separated from the line system 8 by a valve 7.
  • the extinguishing center opens valve 7 completely within 5 to 30 seconds. With this delayed opening, a dangerous air blast from the nozzles 9 into the fire zone is prevented.
  • the slowly opening valve 7 can be a commercially available motor valve, but preferably a slowly opening ball valve is used.
  • the pipeline system 8 can be up to 100 m long from the header pipe 6 to the nozzles 9.
  • the pipe diameters must be matched to the hydraulic requirements of the extinguishing system (throughput and pressure drop). It should be noted that a gas-liquid mixture can flow in the pipes.
  • pressure cushion vessels 10 are to be provided in front of the nozzle 9. These empty containers (also called wind boilers) can absorb pressure surges similar to a gas spring. This Additional device complements the slowly opening valve 7 for controlling the starting air blast.
  • the nozzles 9 can be of different designs. However, the hydraulic properties must be measured for each nozzle type and taken into account in the design calculations. Tests have shown that so-called swirl chamber nozzles are particularly suitable since the outlet openings of these nozzles are large and there is therefore no risk of clogging.

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  • 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)
  • Gasification And Melting Of Waste (AREA)
EP94119613A 1993-12-23 1994-12-12 Procédé pour optimaliser un dispositif d'extinction d'incendies relativement à la consommation de la substance d'extinction de feu et/ou au temps d'extinction Expired - Lifetime EP0661081B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH03843/93A CH689045A5 (de) 1993-12-23 1993-12-23 Verfahren zur Optimierung des Loeschmittelverbrauch und/oder der Loeschzeit und Vorrichtung zur Durchfuehrung des Verfahrens
CH384393 1993-12-23
CH3843/93 1993-12-23

Publications (2)

Publication Number Publication Date
EP0661081A1 true EP0661081A1 (fr) 1995-07-05
EP0661081B1 EP0661081B1 (fr) 2001-07-18

Family

ID=4264674

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94119613A Expired - Lifetime EP0661081B1 (fr) 1993-12-23 1994-12-12 Procédé pour optimaliser un dispositif d'extinction d'incendies relativement à la consommation de la substance d'extinction de feu et/ou au temps d'extinction

Country Status (7)

Country Link
EP (1) EP0661081B1 (fr)
AT (1) ATE203176T1 (fr)
CH (1) CH689045A5 (fr)
DE (1) DE59409803D1 (fr)
DK (1) DK0661081T3 (fr)
ES (1) ES2161741T3 (fr)
PT (1) PT661081E (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996012526A1 (fr) * 1994-10-20 1996-05-02 Intertechnik Techn. Produktionen-Gesellschaft Mbh Procede et dispositif de lutte contre les incendies survenant sous forme d'explosions, notamment des incendies provoques par des hydrocarbures
DE19627353C1 (de) * 1996-06-27 1997-10-23 Feuerschutz G Knopf Gmbh Verfahren zur dynamischen Löschmittelanwendung und Vorrichtung zur Durchführung des Verfahrens
FR2770781A1 (fr) * 1997-11-13 1999-05-14 Normandie Protection Internati Procede de protection des personnes par projection d'eau et installation pour la mise en oeuvre de ce procede
EP1142611A1 (fr) 2000-04-08 2001-10-10 Siemens Building Technologies AG Procédé pour l'optimisation d'un système d'extinction d'incendie à pulvérisation d'eau et système d'extinction d'incendie à pulvérisation d'eau pour la mise en oeuvre du procédé
CN106644847A (zh) * 2016-12-19 2017-05-10 国网湖南省电力公司 细水雾抗风性能参数测量系统及方法
EP4295923A1 (fr) * 2022-06-24 2023-12-27 The Boeing Company Systèmes et procédés de configuration d'extincteurs d'incendie à l'intérieur d'un compartiment

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111274684B (zh) * 2020-01-15 2022-08-09 上海船舶电子设备研究所(中国船舶重工集团公司第七二六研究所) 一种novec1230灭火剂管路压力水力计算方法及系统

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992022353A1 (fr) * 1991-06-19 1992-12-23 Sundholm Goeran Procede et materiel de lutte contre les incendies

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3684019A (en) * 1971-05-07 1972-08-15 Howard W Emmons Method for fighting a fire
GB2060071B (en) * 1979-10-12 1983-11-02 Sugimura N Pulsation absorption device for high pressure liquid

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992022353A1 (fr) * 1991-06-19 1992-12-23 Sundholm Goeran Procede et materiel de lutte contre les incendies

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996012526A1 (fr) * 1994-10-20 1996-05-02 Intertechnik Techn. Produktionen-Gesellschaft Mbh Procede et dispositif de lutte contre les incendies survenant sous forme d'explosions, notamment des incendies provoques par des hydrocarbures
US5899277A (en) * 1994-10-20 1999-05-04 Intertechnik Techn. Produktionen Gesellschaft M.B.H. Method and device for suppressing an explosion-like fire, in particular of hydrocarbons
US6047777A (en) * 1994-10-20 2000-04-11 Intertechnik Techn. Produktionen - Gesellschaft M.B.H. Method and device for suppressing an explosion-like fire, in particular of hydrocarbons
DE19627353C1 (de) * 1996-06-27 1997-10-23 Feuerschutz G Knopf Gmbh Verfahren zur dynamischen Löschmittelanwendung und Vorrichtung zur Durchführung des Verfahrens
WO1998000201A1 (fr) 1996-06-27 1998-01-08 Feuerschutz G. Knopf Gmbh Procede et dispositif d'application dynamique d'un agent extincteur
FR2770781A1 (fr) * 1997-11-13 1999-05-14 Normandie Protection Internati Procede de protection des personnes par projection d'eau et installation pour la mise en oeuvre de ce procede
EP1142611A1 (fr) 2000-04-08 2001-10-10 Siemens Building Technologies AG Procédé pour l'optimisation d'un système d'extinction d'incendie à pulvérisation d'eau et système d'extinction d'incendie à pulvérisation d'eau pour la mise en oeuvre du procédé
SG104265A1 (en) * 2000-04-08 2004-06-21 Siemens Building Tech Ag Process for optimising a water spray extinguishing system and water spray extinguishing system for carrying out the process
CN106644847A (zh) * 2016-12-19 2017-05-10 国网湖南省电力公司 细水雾抗风性能参数测量系统及方法
EP4295923A1 (fr) * 2022-06-24 2023-12-27 The Boeing Company Systèmes et procédés de configuration d'extincteurs d'incendie à l'intérieur d'un compartiment

Also Published As

Publication number Publication date
DK0661081T3 (da) 2001-10-29
ES2161741T3 (es) 2001-12-16
DE59409803D1 (de) 2001-08-23
CH689045A5 (de) 1998-08-31
EP0661081B1 (fr) 2001-07-18
PT661081E (pt) 2002-01-30
ATE203176T1 (de) 2001-08-15

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