EP0017644B1 - Schaumwerfer für Feuerlöschzwecke - Google Patents

Schaumwerfer für Feuerlöschzwecke Download PDF

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Publication number
EP0017644B1
EP0017644B1 EP80890018A EP80890018A EP0017644B1 EP 0017644 B1 EP0017644 B1 EP 0017644B1 EP 80890018 A EP80890018 A EP 80890018A EP 80890018 A EP80890018 A EP 80890018A EP 0017644 B1 EP0017644 B1 EP 0017644B1
Authority
EP
European Patent Office
Prior art keywords
foam
air
tube
discharge nozzle
liquid
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
Application number
EP80890018A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0017644A1 (de
Inventor
Ernst Dipl.-Ing. Güttler
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.)
Konrad Rosenbauer KG
Original Assignee
Konrad Rosenbauer 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 Konrad Rosenbauer KG filed Critical Konrad Rosenbauer KG
Publication of EP0017644A1 publication Critical patent/EP0017644A1/de
Application granted granted Critical
Publication of EP0017644B1 publication Critical patent/EP0017644B1/de
Expired 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
    • A62C31/12—Nozzles specially adapted for fire-extinguishing for delivering foam or atomised foam

Definitions

  • the invention relates to a foam launcher for fire-fighting purposes with a launcher tube which has air passage openings and which coaxially connects to an outlet nozzle of a liquid feed line housing, the outlet nozzle being assigned a longitudinally adjustable, cylindrical central tube for internal air feed line.
  • foam can be produced in two different ways, one with the foam generation tube placed on the mouthpiece by supplying a foam-forming substance through a longitudinal bore of the guide body in the water jet emerging from the mouthpiece and the other time with the foam generation tube removed by supplying air through the Longitudinal bore in a mixture of water and foaming agent, which must be fed to the mouthpiece, so that either a foam generator with an attached foam generation tube, in which a solution of foam-generating substances is then fed centrally, or a foam generator without foam generation tube, with which air can be fed centrally.
  • a foam generator with an internal air supply and an outer foam generation tube which also allows a flow rate regulation of the liquid, cannot be suggested.
  • a snow cannon is also known in which a double-conical outlet nozzle arranged inside an outer snow tube is supplied with a water-air mixture, which outlet nozzle cooperates with a nozzle body seated on an actuating rod, in order to shape the emerging mixture to influence and size of the radiation core and to be able to adapt the function of the snow cannon to the atmospheric conditions.
  • a simple flow adjustment device for regulating the amount of water alone.
  • the invention is therefore based on the object to remedy these deficiencies and to provide a foam thrower of the type described, in which not only external and internal admixture of the air to the liquid jet is ensured, but moreover the flow rate of the liquid varies in a very simple manner as desired can be.
  • the outlet nozzle has a cylindrical end section in a manner known per se and the central tube has a control bead with a cylindrical control section which is thickened compared to the mouth cross section of the central tube, which control section can be inserted into the end section of the outlet nozzle for adjusting the flow rate of the liquid.
  • the displaceability of the central tube which was previously only required for cleaning and detoxifying the outlet nozzle, can now be used in a simple manner for throttling the liquid flow passing through the outlet nozzle by inserting the control bead into the outlet nozzle with the central tube and thus changing the ring cross section of the nozzle accordingly, the Adjustment of the central tube can be carried out without difficulty in any way, for example manually, pneumatically, electrically, directly or remotely, etc.
  • control bead can be produced in itself in any suitable manner, but it is particularly advantageous if the control bead consists of a sleeve or the like which is pulled onto the central tube. In this case it is possible to replace the control bead and thereby optionally change the throttling options.
  • a liquid supply housing 1 with a corresponding connection piece 2 opens via an outlet nozzle 3 into a launcher tube 4 which has air passage openings 5 distributed around the circumference.
  • a central tube 6 is provided for an internal air supply, which via a Hand lever 7 is longitudinally adjustable in a bearing bush 8 of the liquid supply housing 1 and projects with its mouth region 9 through the outlet nozzle 3.
  • a control bead 10 is formed on the central tube 6, which has an outer cross section which is enlarged compared to the mouth region 9 and can be inserted into the outlet nozzle 3 by adjusting the central tube 6.
  • the annular passage cross section 11 of the outlet nozzle is changed in accordance with the shape of the control bead 10, which enables the liquid flow through the outlet nozzle 3 to be regulated. Since this adjustability depends on the diameter of the cylindrical control section of the control bead, the type of regulation can be adjusted as desired to suit different conditions by appropriate selection of the control sections, the production of the control bead itself being irrelevant and therefore having its own sleeve, a jacket reinforcement of the central tube or even a specific one Shape of the central tube can serve as a control bead.
  • the drive for moving the central tube is not bound to the hand lever shown, but is possible in any suitable version.

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Nozzles (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
EP80890018A 1979-03-28 1980-02-13 Schaumwerfer für Feuerlöschzwecke Expired EP0017644B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT2290/79 1979-03-28
AT0229079A AT365460B (de) 1979-03-28 1979-03-28 Schaumwerfer fuer feuerloeschzwecke

Publications (2)

Publication Number Publication Date
EP0017644A1 EP0017644A1 (de) 1980-10-15
EP0017644B1 true EP0017644B1 (de) 1984-04-04

Family

ID=3531603

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80890018A Expired EP0017644B1 (de) 1979-03-28 1980-02-13 Schaumwerfer für Feuerlöschzwecke

Country Status (9)

Country Link
EP (1) EP0017644B1 (el)
AT (1) AT365460B (el)
DE (1) DE3067310D1 (el)
DK (1) DK131280A (el)
GR (1) GR64439B (el)
NO (1) NO800751L (el)
PL (1) PL120094B1 (el)
YU (1) YU39695B (el)
ZA (1) ZA801210B (el)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111111063A (zh) * 2019-12-21 2020-05-08 国安达股份有限公司 一种压缩空气泡沫专用消防炮

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE702979C (de) * 1932-12-13 1941-02-25 Elektro Technik G M B H Luftschaumerzeuger
CH178366A (de) * 1933-09-22 1935-07-15 Feuerwehrgeraete Und Spritzenf Vorrichtung zur Erzeugung von Wasser- und Schaumstrahlen für Feuerlöschzwecke.
DE652241C (de) * 1933-10-29 1937-10-27 Feuerwehrgeraete U Spritzenfab Luftschaumerzeuger fuer Feuerloeschzwecke
CH224514A (de) * 1939-07-25 1942-11-30 Albach & Co Sirenen & Armature Luftschaumerzeuger.
AT172999B (de) * 1949-02-24 1952-11-10 Minimax Ag Vorrichtung zur Erzeugung von Luftschaum
FR1373855A (fr) * 1963-08-22 1964-10-02 Le Materiel Ind De Prot M A I Perfectionnements aux lances d'incendie, notamment pour la production de mousse physique
FR2376384A1 (en) * 1976-12-30 1978-07-28 Cecil Snow cannon for making ski slopes - has adjustable nozzles for water and air to suit different ambient conditions

Also Published As

Publication number Publication date
GR64439B (en) 1980-03-21
PL120094B1 (en) 1982-02-27
PL222971A1 (el) 1980-12-01
ZA801210B (en) 1981-03-25
YU50480A (en) 1983-04-30
YU39695B (en) 1985-03-20
NO800751L (no) 1980-09-29
AT365460B (de) 1982-01-25
ATA229079A (de) 1981-06-15
EP0017644A1 (de) 1980-10-15
DE3067310D1 (en) 1984-05-10
DK131280A (da) 1980-09-29

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