EP0318646A3 - Method and apparatus for mixing extinguishing water with a foaming or wetting agent - Google Patents

Method and apparatus for mixing extinguishing water with a foaming or wetting agent Download PDF

Info

Publication number
EP0318646A3
EP0318646A3 EP88114318A EP88114318A EP0318646A3 EP 0318646 A3 EP0318646 A3 EP 0318646A3 EP 88114318 A EP88114318 A EP 88114318A EP 88114318 A EP88114318 A EP 88114318A EP 0318646 A3 EP0318646 A3 EP 0318646A3
Authority
EP
European Patent Office
Prior art keywords
water
wetting agent
foam
foaming
extinguishing 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Withdrawn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
EP88114318A
Other languages
German (de)
French (fr)
Other versions
EP0318646A2 (en
Inventor
Reinhard Dipl.-Ing. Lansche
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.)
Total Walther Feuerschutz GmbH
Original Assignee
Total Walther Feuerschutz 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 Total Walther Feuerschutz GmbH filed Critical Total Walther Feuerschutz GmbH
Publication of EP0318646A2 publication Critical patent/EP0318646A2/en
Publication of EP0318646A3 publication Critical patent/EP0318646A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • A62C5/022—Making of fire-extinguishing materials immediately before use of foam with air or gas present as such
    • A62C5/024—Apparatus in the form of pipes
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/30—Injector mixers
    • B01F25/31—Injector mixers in conduits or tubes through which the main component flows
    • B01F25/315—Injector mixers in conduits or tubes through which the main component flows wherein a difference of pressure at different points of the conduit causes introduction of the additional component into the main component
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/0018—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas with devices for making foam
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/04—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
  • Jet Pumps And Other Pumps (AREA)

Abstract

Die Erfindung betrifft ein Verfahren und eine Vorrichtung zum Zumischen eines Schaum- oder Netzmittels in ein Löschwasser zum Erzeugen eines Wasser-Schaummittel-Gemisches für Feuer­ löschzwecke. Damit sich die Saugstrahlpumpe den unterschied­ lichen Durchsätzen und Drücken am Verbraucher und damit den veränderten Gegebenheiten selbsttätig innerhalb eines vorge­ gebenen Bereiches anpaßt, sind die Querschnitte der Treib- und der Fangdüse variabel ausgestaltet. Damit auch die ange­ saugte Schaummittelmenge konstant bleibt, ist der Saugstrahl­ pumpe ein Venturirohr vor- und/oder nachgeschaltet, dessen Wirkdruck proportional und somit geeignet ist, den Ausgangs­ querschnitt des Schaummittels dem Löschwasserdurchsatz anzu­ passen. The invention relates to a method and an apparatus for Mixing a foam or wetting agent into a fire extinguishing water to create a water-foam mixture for fire extinguishing. So that the suction jet pump the difference throughputs and pressures at the consumer and thus the changed conditions automatically within a pre the given area, the cross-sections of the and the catch nozzle designed variably. So that the ange sucked foam amount remains constant, is the suction jet pump a Venturi tube upstream and / or downstream, the Impact pressure is proportional and therefore suitable to the output cross section of the foaming agent to the fire water throughput fit.

EP88114318A 1987-12-01 1988-09-02 Method and apparatus for mixing extinguishing water with a foaming or wetting agent Withdrawn EP0318646A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3740677 1987-12-01
DE19873740677 DE3740677A1 (en) 1987-12-01 1987-12-01 METHOD AND DEVICE FOR ADMINISTERING A FOAM OR WETTING AGENT INTO EXTINGUISHING WATER

Publications (2)

Publication Number Publication Date
EP0318646A2 EP0318646A2 (en) 1989-06-07
EP0318646A3 true EP0318646A3 (en) 1990-04-18

Family

ID=6341642

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88114318A Withdrawn EP0318646A3 (en) 1987-12-01 1988-09-02 Method and apparatus for mixing extinguishing water with a foaming or wetting agent

Country Status (2)

Country Link
EP (1) EP0318646A3 (en)
DE (1) DE3740677A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4113618A1 (en) * 1991-04-26 1992-10-29 Total Feuerschutz Gmbh ADJUSTMENT OF A FIRE EXTINGUISHER
DE4415709C2 (en) * 1994-05-04 1997-04-24 Total Feuerschutz Gmbh Mixer for foaming agents
US6074176A (en) * 1994-10-20 2000-06-13 Conkin; David W. Proportional product injection circuit with two diaphragm valves
DE10327350B4 (en) * 2003-06-16 2008-01-31 Vogt AG, Feuerwehrgeräte- und Fahrzeugbau Jet pump mixer and method for operating a jet pump mixer
DE102004030747A1 (en) * 2004-06-25 2006-01-19 Weinmann Geräte für Medizin GmbH + Co. KG Air-oxygen breathing mixtures, for emergency respirators, are produced using supply of pressurized oxygen to suck atmospheric air through venturi nozzle eductor
US20100314137A1 (en) * 2009-06-16 2010-12-16 Chemguard Inc. Fire fighting foam proportioning devices and systems having improved low flow performance
DE102016226203A1 (en) * 2016-12-23 2018-06-28 TKW Armaturenvertriebs GmbH Dosing device and mixer for fire extinguishing purposes
CN110561676B (en) * 2019-09-18 2020-08-14 北京李尔现代坦迪斯汽车系统有限公司 Automatic foaming detection equipment

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4250915A (en) * 1977-11-17 1981-02-17 Sotokazu Rikuta Automatic controlling valve for maintaining the rate of fluid flow at a constant value
EP0099626A1 (en) * 1982-07-16 1984-02-01 Cause Consequence Analysis Inc Foam-applying nozzle
FR2541581A1 (en) * 1983-02-09 1984-08-31 Nohmi Bosai Kogyo Co Ltd Meterer of concentrated foaming product having a wide delivery range
EP0128690A1 (en) * 1983-05-26 1984-12-19 Spiro Machines S.A. Improvements in fluid flow control valves

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3547409A (en) * 1968-05-23 1970-12-15 Jacuzzi Bros Inc Assembly for producing detergent foam

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4250915A (en) * 1977-11-17 1981-02-17 Sotokazu Rikuta Automatic controlling valve for maintaining the rate of fluid flow at a constant value
EP0099626A1 (en) * 1982-07-16 1984-02-01 Cause Consequence Analysis Inc Foam-applying nozzle
FR2541581A1 (en) * 1983-02-09 1984-08-31 Nohmi Bosai Kogyo Co Ltd Meterer of concentrated foaming product having a wide delivery range
EP0128690A1 (en) * 1983-05-26 1984-12-19 Spiro Machines S.A. Improvements in fluid flow control valves

Also Published As

Publication number Publication date
DE3740677A1 (en) 1989-06-15
DE3740677C2 (en) 1990-05-23
EP0318646A2 (en) 1989-06-07

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