EP1500413A1 - Dispositif d'extinction de feu - Google Patents

Dispositif d'extinction de feu Download PDF

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Publication number
EP1500413A1
EP1500413A1 EP03405559A EP03405559A EP1500413A1 EP 1500413 A1 EP1500413 A1 EP 1500413A1 EP 03405559 A EP03405559 A EP 03405559A EP 03405559 A EP03405559 A EP 03405559A EP 1500413 A1 EP1500413 A1 EP 1500413A1
Authority
EP
European Patent Office
Prior art keywords
pressure
foam
container
compressed gas
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.)
Withdrawn
Application number
EP03405559A
Other languages
German (de)
English (en)
Inventor
Thomas Zawadke
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.)
Tony Brandle AG Wil
Original Assignee
Tony Brandle AG Wil
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 Tony Brandle AG Wil filed Critical Tony Brandle AG Wil
Priority to EP03405559A priority Critical patent/EP1500413A1/fr
Publication of EP1500413A1 publication Critical patent/EP1500413A1/fr
Withdrawn legal-status Critical Current

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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
    • A62C99/0036—Methods of extinguishing or preventing the spread of fire by cooling down or suffocating the flames using foam
    • 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
    • A62C31/12—Nozzles specially adapted for fire-extinguishing for delivering foam or atomised foam
    • 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
    • A62C35/023—Permanently-installed equipment with containers for delivering the extinguishing substance the extinguishing material being expelled by compressed gas, taken from storage tanks, or by generating a pressure gas
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C5/00—Making of fire-extinguishing materials immediately before use
    • A62C5/02—Making of fire-extinguishing materials immediately before use of foam

Definitions

  • the invention relates to fire extinguishing apparatus for providing of extinguishing foam.
  • Foam extinguishers are known. Extinguishing foam can be in different Shaping forms and thus adapted to the situation. Especially with manual extinguishers, water is released through a Venturi tube promoted, sucked by which the foaming agent and admixed becomes.
  • a fire extinguisher which on a comparable Principle is described in US 5,632,338.
  • the water tank is pressurized with compressed air.
  • a withdrawal is the extinguishing water passed through a metering device and with added to the foaming agent.
  • After exiting the metering device is the water-foam mixture again compressed air added.
  • the object of the present invention is to overcome the disadvantages of To overcome acquaintances and in particular a fire extinguisher or to provide a method for producing extinguishing foam, which is an improved, simple and economical Control of the metered addition of the foaming agent or an improved Mixing of the foaming agent in the water allows.
  • the fire extinguishing device has a water tank, a foam container and at least one compressed gas connection on.
  • the water tank and the foam container are connected to an outlet pipe.
  • the fire extinguisher is characterized in that the water tank and the foam container with the at least one compressed gas connection are connected and that the pressure in a compressed gas supply line to the water tank is smaller than the pressure in one Compressed gas supply line to the foam container.
  • a compressed gas connection is a device to understand which a connection between a reservoir for the compressed gas and the fire extinguishing device allows. imaginable is the presence of several such compressed gas connections, if necessary, a change of compressed gas storage tanks without interrupting the operation of the fire extinguisher to be able to make.
  • compressed gas the known means such as compressed air, nitrogen, etc. can be used.
  • the compressed air can either from appropriate pressure cylinders be removed as well as a compressor unit directly be generated. Basically, there is a reduction the exiting the reservoir compressed air to a Pressure of approx. 1 - 1.2 MPa (10 - 12 bar). In dependency of Use situation, the pressure, for example, between 0.5 and 2 MPa (5-20 bar).
  • both the water tank and the foam container are connected to a common compressed gas connection, so that the containers each with the compressed gas from a Source can be applied. Due to the separated Supply to the containers is an unwanted, premature mixing the liquids excluded. This may possibly by check valves, which are additionally inserted into the pipes be further supported. However, it is conceivable also a separate connection of the water tank or Foaming agent tank at compressed gas sources. By means of adjustable Pressure reducing devices becomes the necessary pressure difference between the water and foam area of the fire extinguisher achieved.
  • the pressure is taken by suitable measures smaller in the supply line from the compressed gas connection to the water tank held, as this for the pressurized gas supply line to the foam container the case is.
  • the foaming agent in the Exhaust pipe more intensively mixed with the water, leaving a improved foam generation and foam quality takes place.
  • a suitable pressure difference can be advantageous Influence on the relationship between water and foaming agent and to be taken on the form of the foam.
  • the pressurized gas supply line to the water tank a pressure reducing device.
  • a controllable pressure reducing device can target a pressure difference produced in comparison to the supply line to the foam container and thus, as already mentioned above, influence take the foam.
  • a pressure reducing device can For example, a throttle, in particular a controllable throttle as well as screens or other suitable technical equipment used for pressure reduction.
  • the pressure difference between the Pressure in the compressed gas supply line to the water tank and the pressure in the compressed gas supply line to the foam container between 10 and 200 kPa (0.1 and 2 bar).
  • the pressure difference between 30 and 100 kPa (0.3 and 1 bar).
  • the specified Areas for the pressure difference between the compressed gas supply line to the water tank and the compressed gas supply to Foam containers on the one hand provide a sufficient supply of foaming agent to the water and on the other hand a homogeneous Mix the foaming agent with the water safely.
  • An exact one Choice of pressure difference is determined by each of the present Situation and thus required foam consistency dependent be. This is easy for the operator due to his experience perform.
  • the fire extinguishing device has a mixing chamber on.
  • a water pipe and a Foam conduit connected, which are the pressurized Add liquids to the mixing chamber.
  • the mixing chamber supports in particular by a suitable shaping the foaming of the water-foaming agent mixture.
  • the mixing of the water-foaming agent mixture especially if larger quantities of extinguishing foam are needed and this be achieved by a larger inflow of liquid should.
  • the water line to the mixing chamber advantageously has a device to prevent the ingress of foam or foaming agent in the water pipe.
  • a device can be formed for example as a check valve. Further suitable devices are known to the person skilled in the art. through This device prevents the water in the water tank is mixed with foaming agent and for later use no longer or only partially usable. At the same time, a Material damage or impairment of the water tank, the pipes or other facilities of the water area prevented by the foaming agent.
  • Another aspect of the invention is a method of production of foam, in particular fire-extinguishing foam.
  • the procedure contains the steps of pressurizing a water tank with a first pressure, the application of a foaming agent container with a second pressure, and mixing with Pressure of pressurized water and foaming agent.
  • the procedure is characterized in that the water tank is separated is pressurized by the foam container and that the first pressure is less than the second pressure.
  • the pressure difference between the first pressure and the second Pressure is advantageously between 10 and 200 kPa (0.1 and 2 bar), preferably between 30 and 100 kPa (0.3 and 1 bar).
  • the method is formed when the Foaming agent in a ratio between 1: 100 and 20: 100, preferably between 2: 100 and 15: 100 is added to the water.
  • the Zumischraten are dependent on the foaming agent used and are each adapted.
  • a Pressure reducing device in a fire extinguishing device for generating of extinguishing foam being a water tank and a Foaming agent container separately pressurized are arranged, wherein the pressure reducing device in a Compressed gas supply line is arranged to the water tank and wherein in the water tank a first pressure and in the foam container a second pressure exists and the first pressure is less than that second pressure is.
  • the fire extinguishing device according to the invention is particularly advantageous as part of a vehicle for firefighting used.
  • execution as independent unit, which is independent of an installation can be used on another device.
  • Figure 1 shows the extinguishing water in a fire water tank 4 pressurized by means of a compressed gas.
  • the Compressed gas is provided by a gas cylinder 2 and by means of a reducing valve 3 via the compressed gas port 9 in supplied to the container 4.
  • From the water tank 4 passes Water via a line 11 to a venturi valve 6.
  • Venturi valve 6 is from a foam container 5 due to Vacuum the foaming agent through line 12 into the water stream admixed.
  • the water-foaming agent mixture passes over the outlet line 13 to the extinguishing pistol 8.
  • a hose reel 7 is arranged be.
  • the inventive fire extinguishing device 1, as shown in FIG 2 also shows a compressed gas cylinder 2 with a following arranged reducing valve 3.
  • the compressed gas cylinder 2 supplied via the compressed gas connection 9, the compressed gas supply line of the water tank 4.
  • this supply line 10 is a throttle 17 installed, which already set by the reducing valve 13 Pressure further reduced.
  • a compressed gas supply line 14 of the foam container 5 pressurized.
  • the water gets over the pipe 15 from the water tank 4 in the direction of the extinguishing gun. 8 guided.
  • the line 15 points before the start of the outlet 13 a check valve 22, which is a contamination of the water prevented with foam or foaming agent.
  • FIG. 4 shows a third embodiment of the invention Fire extinguishing device 1 shown.
  • the fire extinguishing device 1 two separate compressed gas connections 9.
  • the water tank 4 and the foam container 5 are separated Compressed gas cylinder 2 supplied. Notwithstanding the description according to the figures 2 and 3 are after the compressed gas connections. 9 each control throttles 19 in the compressed gas supply lines 10 and 14 integrated. These two control throttles 19 are in turn connected to a controller 20. About a balance setpoint / actual values become the prevailing pressures in the water branch or foaming agent branch of the fire extinguishing device 1 is set. The operator is simply a change the applied pressures in these two liquid branches possible. According to this example, it would also be conceivable that Control unit remotely controllable, so that a change for example, the foam consistency by the on-site Operator immediately to the changed requirements is possible.

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)
EP03405559A 2003-07-24 2003-07-24 Dispositif d'extinction de feu Withdrawn EP1500413A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP03405559A EP1500413A1 (fr) 2003-07-24 2003-07-24 Dispositif d'extinction de feu

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP03405559A EP1500413A1 (fr) 2003-07-24 2003-07-24 Dispositif d'extinction de feu

Publications (1)

Publication Number Publication Date
EP1500413A1 true EP1500413A1 (fr) 2005-01-26

Family

ID=33484084

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03405559A Withdrawn EP1500413A1 (fr) 2003-07-24 2003-07-24 Dispositif d'extinction de feu

Country Status (1)

Country Link
EP (1) EP1500413A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101920085A (zh) * 2010-09-03 2010-12-22 中国石油化工股份有限公司 一种正压式泡沫灭火装置及其使用方法
CN101496939B (zh) * 2009-03-06 2011-12-21 上海芜津消防设备有限公司 储气式压缩空气a类泡沫灭火装置
WO2016048136A1 (fr) * 2014-07-31 2016-03-31 Fire Fighting Systems B.V. Dispositif de mousse extinctrice permettant de générer une mousse extinctrice, et procédé de test d'un dispositif de mousse extinctrice
CN111111064A (zh) * 2020-01-13 2020-05-08 磐龙安全技术有限公司 一种泡沫液与水分开储存的泡沫喷雾灭火系统

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1585147A (en) * 1920-08-09 1926-05-18 Oscar J Holmes One-pipe sprinkler system
FR2169440A5 (fr) * 1972-01-25 1973-09-07 Biro Guillaume
CH570174A5 (en) * 1973-06-04 1975-12-15 Omnium Commercial Ind Et Finan Installation for fighting fires in buildings - rapidly converts to use liquid or powder or mixture as extinguishing medium

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1585147A (en) * 1920-08-09 1926-05-18 Oscar J Holmes One-pipe sprinkler system
FR2169440A5 (fr) * 1972-01-25 1973-09-07 Biro Guillaume
CH570174A5 (en) * 1973-06-04 1975-12-15 Omnium Commercial Ind Et Finan Installation for fighting fires in buildings - rapidly converts to use liquid or powder or mixture as extinguishing medium

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101496939B (zh) * 2009-03-06 2011-12-21 上海芜津消防设备有限公司 储气式压缩空气a类泡沫灭火装置
CN101920085A (zh) * 2010-09-03 2010-12-22 中国石油化工股份有限公司 一种正压式泡沫灭火装置及其使用方法
WO2016048136A1 (fr) * 2014-07-31 2016-03-31 Fire Fighting Systems B.V. Dispositif de mousse extinctrice permettant de générer une mousse extinctrice, et procédé de test d'un dispositif de mousse extinctrice
CN111111064A (zh) * 2020-01-13 2020-05-08 磐龙安全技术有限公司 一种泡沫液与水分开储存的泡沫喷雾灭火系统

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