[go: up one dir, main page]

WO2000015303A1 - Tete de buse d'extinction pour projeter un liquide d'extinction - Google Patents

Tete de buse d'extinction pour projeter un liquide d'extinction Download PDF

Info

Publication number
WO2000015303A1
WO2000015303A1 PCT/EP1999/006769 EP9906769W WO0015303A1 WO 2000015303 A1 WO2000015303 A1 WO 2000015303A1 EP 9906769 W EP9906769 W EP 9906769W WO 0015303 A1 WO0015303 A1 WO 0015303A1
Authority
WO
WIPO (PCT)
Prior art keywords
nozzle
extinguishing
central
nozzle head
head according
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.)
Ceased
Application number
PCT/EP1999/006769
Other languages
German (de)
English (en)
Inventor
Peter Kammer
Beda Itin
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
Priority to DE59909761T priority Critical patent/DE59909761D1/de
Priority to JP2000569887A priority patent/JP4335455B2/ja
Priority to EP99947333A priority patent/EP1112108B1/fr
Publication of WO2000015303A1 publication Critical patent/WO2000015303A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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 nozzle head for dispensing liquid under high pressure with at least one central nozzle.
  • nozzle heads are used in stationary or mobile fire extinguishing systems.
  • high pressures are understood to mean pressures above 40 bar.
  • a nozzle head for a mobile fire extinguishing device is known from German utility model 295 18 911.
  • the squeegee head is also equipped with a centrally arranged main nozzle.
  • a directed full jet, spray jet or coarse water mist can be discharged from the main nozzle if necessary.
  • German Utility Model G 94 10 663 describes a Mini nozzle for the application of water in which a cone is produced via an annular gap Loschmannmaschine, preferably water, is known. This water cone surrounds an interior, which is filled with additional water via several nozzles.
  • the water jet generated in this way should have improved bundling, a further advantage being that the water flow through the nozzle should be increased compared to other known nozzles.
  • it is disadvantageous that the production of the known small jet pipe is complex because of the complex shape of its individual parts.
  • the nozzle is only suitable to a limited extent to generate a water jet that remains bundled even over larger throwing distances.
  • the invention is based on the object, based on the above-described prior art, of creating an ejector nozzle head which can generate an extinguishing liquid jet, the bundling of which is retained even after a long throw and by means of which several ejection points can be applied to the fire surface.
  • a squeegee head in which, in the immediate vicinity of the central squeegee, several additional nozzles are spaced at equal angles on a circle whose center coincides with the central axis of the squeegee are arranged, wherein a jet emerges from the additional nozzles, the jet direction of which is equal to the jet direction of the jet emerging from the central outlet nozzle.
  • auxiliary nozzle to the central extinguisher nozzle ⁇ around an erasing image is formed on the one hand, having a plurality of extinguishing points.
  • the jets emerging from the additional nozzles prevent the jet emerging from the central extinguishing nozzle from being frayed out into a large number of individual drops that diverge.
  • the additional jets emerging from the additional nozzles envelop the central jet and thus form a kind of "support" for the central jet.
  • the additional jets ensure that the jet is well bundled even after a long throw.
  • the extinguishing nozzle head equipped according to the invention is particularly suitable for dispensing extinguishing liquid under high pressure, that is to say under pressures above 40 bar, preferably above 60 bar.
  • a favorable embodiment of the invention in terms of manufacturing costs and practical usability is characterized in that three additional nozzles are arranged around the central extinguishing nozzle. Practical tests have shown that the jets emerging from the three additional nozzles have a sufficient supporting effect, on the one hand to achieve good wetting of the fire surface and, on the other hand, to prevent the central extinguishing beam from being lost prematurely.
  • a particularly good support effect for the jet of the central extinguishing nozzle arises when the Additional sockets have a smaller diameter than the central sockets. This applies in particular if the diameter of the central nozzle is 1.5 to three times the diameter of the additional nozzles.
  • a particularly good pruning effect of the additional jets even with large throwing distances can be achieved in that the distance of the additional nozzles to the center of the central nozzle nozzle corresponds to one to four times the diameter of the nozzle nozzle.
  • the squeegee nozzle and the additional nozzles m form an independent squeegee element.
  • This makes it possible, for example, to replace the nozzle elements if necessary.
  • a particular advantage of this configuration is that the nozzle nozzle and the additional nozzles can be fed together in a simple manner through a chamber located upstream of the nozzle liquid. This common supply of the nozzles causes a uniform formation of the jets emerging from the nozzles, since it is ensured that the same pressure is present at all nozzles. It has proven to be particularly advantageous if the chamber tapers conically in the direction of flow of the liquid. This conical flow leads to a directional flow in the chamber, which additionally improves the uniform development of the jets emerging from the nozzles.
  • an advantageous embodiment of the invention has one Extinguishing foam generation device, which is connected to the extinguishing nozzle.
  • the arrangement of the invention by the additional nozzles reached allocation turns in close proximity to the central nozzle of the beam into multiple beams for complete foaming of the extinguishing liquid to be particularly advantageous ⁇ .
  • FIG. 1 shows an extinguishing nozzle head in a frontal view.
  • FIG. 3 shows the extinguishing nozzle element according to FIG. 2 in an axial section
  • FIG. 4 shows the extinguishing nozzle head according to FIG. 1 with an attached foam tube in an axial section
  • Figure 5 shows the foam tube in an enlarged axial section.
  • Fig. 6 shows the foam tube in a cross section along the section line XX shown in Fig. 5.
  • the extinguishing nozzle head 1 has an end face 2, in the middle of which a receptacle 3 is formed.
  • An extinguishing nozzle element 4 is screwed into the receptacle 3 and has a central extinguishing nozzle 6 arranged on its free end face 5.
  • the end face 2 of the extinguishing nozzle head 1 is adjoined by a circumferential inclined surface 1 b, on which mist generation nozzles 1 c are arranged.
  • three additional nozzles 7a, 7b, 7c are positioned on a circle K at a short distance a from the central extinguishing nozzle 6 at regular angular intervals a, the nozzle bores of which run parallel to the bore of the central extinguishing nozzle 6.
  • the diameter of the additional nozzles 7a, 7b, 7c is smaller than the diameter of the central extinguishing nozzle 6.
  • the central extinguishing nozzle 6 and the additional nozzles 7a, 7b, 7c are connected to a chamber 8, which is molded into the extinguishing element 4 starting from the end face arranged opposite the end face 5.
  • the chamber 8 has a section 8a assigned to the mouths of the bores of the central extinguishing nozzle 5 and the additional nozzles 7a, 7b, 7c, the walls of which taper conically at an angle in the direction of the bore mouths.
  • a hexagon 9 is formed at a distance from the end face 5 on the extinguishing nozzle element 4, on which an assembly tool, not shown here, can be attached.
  • the chamber 8 surrounding section is also on the Extinguishing nozzle element 4 an external thread 10 is formed, via which the extinguishing nozzle element 4 is screwed into a correspondingly formed thread of the receptacle 3.
  • a further external thread 11 is present in the section between the hexagon 9 and the end face 5 of the extinguishing nozzle element 4.
  • a foam tube 12 can be screwed onto the thread 11 via a sleeve 29, which is provided with an internal thread at both ends thereof.
  • the foam tube 12 has a first section 13 which, starting from an inlet opening associated with the extinguishing nozzle head 1, tapers conically with a large diameter D 1 and merges into a first cylinder section 14 with a constant diameter D 2.
  • a second tapered section 15 adjoins the first cylinder section 14 and merges into a second cylinder section 16.
  • the constant diameter D3 of the cylinder section 16 corresponds to the diameter of the foam outlet opening 17 of the foam tube 12.
  • a nozzle body 18 which is held coaxially to the longitudinal axis L of the foam tube 12 by means of webs 19 which are integrally formed thereon and are supported on the wall of the section 13. Between the webs 19 and the nozzle body 18 there are suction openings 20, through which ambient medium, mainly air, is drawn from the environment into the foam tube 12.
  • the nozzle body 18 has an end face 21, from which an injector nozzle 22 is molded into the nozzle body 18.
  • the bore of the injector nozzle 22 opens into one Chamber 23, which is formed in the nozzle body 18 starting from the side opposite the end face 20.
  • An external thread 30 is formed on the outside of the walls of the nozzle body 18 surrounding the chamber 23, via which the foam tube 12 is screwed to the sleeve 29 (FIG. 4).
  • an orifice plate 24 which has two nozzle bores 25, 26.
  • the nozzle bores 25, 26 are partially covered by the injector nozzle 22 of the nozzle body 18, so that the nozzle bores 25, 26 of the orifice plate 24 are only partially released and the sharp edge 27 of the edge of the injector nozzle 22 is respectively arranged in the nozzle openings 25, 26.
  • Extinguishing liquid enriched with foaming agent reaches the chamber 8 of the extinguishing nozzle element via a channel 28 of the extinguishing nozzle head 1. From there it penetrates into the bores of the central extinguishing nozzle 6 and the additional nozzles 7a, 7b, 7c and emerges as parallel jets from the central extinguishing nozzle 6 and the additional nozzles 7a, 7b, 7c.
  • the jets emerging from the additional nozzles 7a, 7b, 7c support the jet emerging from the central extinguishing nozzle 6, so that the jets can together bridge a long throw.
  • the jets emerging from the additional nozzles 7a, 7b, 7c provide a spray pattern which has four concentrated extinguishing points on an area enlarged compared to a single jet, which points correspond to the distribution of the central extinguishing nozzle 6 and the additional nozzles 7a, 7b, 7c on the extinguishing nozzle element 2 are arranged. If a foam tube 12 is screwed onto the nozzle element 4 (FIG. 4), the jets split in this way are swirled in the chamber 23 of the nozzle body 18 and reach the injector nozzle 22 via the nozzle bores 25, 26.
  • the edge 27 of the injector nozzle 22 becomes formed from already atomized jets ⁇ through the nozzle holes passing beams 25,26 further swirled so that an educated of finely divided droplets of high kinetic energy mist jet enters via the Injektorduse 22 into the foam pipe 12th
  • This mist jet sucks ambient air through the suction openings 20 m in the manner of a venturi nozzle, so that the foam liquid 12 forms a foam with the additives mixed into it.
  • This foam is particularly fine-pored due to the fine atomization of the liquid.
  • the fine-pored foam comes out of the foam tube 12 and is thrown towards the source of the fire due to its own kinetic energy.
  • Such a delicately composed extinguishing foam has a high level of adhesion, so that it reliably wets the fire area and has a large extinguishing capacity.
  • the smoke generation nozzles 1 c can, if necessary, be supplied with fire fluid by means of a suitable valve device (also not shown).
  • a suitable valve device also not shown.
  • the resulting water mist not only provides targeted cooling of the fire environment, but also provides effective protection for the firefighter.
  • the advantages of heat binding and excellent inerting as well as radiation heat protection that adhere to the water mist for the operating personnel increase the effectiveness and usability of the foam generated by the high-pressure foam generator placed on the central nozzle.

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)

Abstract

L'invention concerne une tête de buse d'extinction, où plusieurs buses additionnelles (7a, 7b, 7c) sont disposées de manière très rapprochée, à des écarts angulaires identiques ( alpha ) autour d'une buse d'extinction (6) centrale, sur un cercle (K) dont le point médian coïncide avec l'axe médian (L) de la buse d'extinction (6) centrale. Un jet sort de chacune des buses additionnelles (7a, 7b, 7c), dont la direction est identique à celle du jet sortant de la buse d'extinction (6) centrale et qui peut produire un jet de liquide d'extinction, dont la concentration du faisceau est maintenue, y compris en cas de portée importante du jet et grâce auquel plusieurs points d'extinction peuvent être appliqués sur la surface d'incendie.
PCT/EP1999/006769 1998-09-11 1999-09-13 Tete de buse d'extinction pour projeter un liquide d'extinction Ceased WO2000015303A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE59909761T DE59909761D1 (de) 1998-09-11 1999-09-13 Löschdüsenkopf zum ausbringen von löschflüssigkeit
JP2000569887A JP4335455B2 (ja) 1998-09-11 1999-09-13 消火液を噴出させるための消火ノズルヘッド
EP99947333A EP1112108B1 (fr) 1998-09-11 1999-09-13 Tete de buse d'extinction pour projeter un liquide d'extinction

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19841875.2 1998-09-11
DE19841875A DE19841875A1 (de) 1998-09-11 1998-09-11 Löschdüsenkopf zum Ausbringen von Löschflüssigkeit

Publications (1)

Publication Number Publication Date
WO2000015303A1 true WO2000015303A1 (fr) 2000-03-23

Family

ID=7880807

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1999/006769 Ceased WO2000015303A1 (fr) 1998-09-11 1999-09-13 Tete de buse d'extinction pour projeter un liquide d'extinction

Country Status (4)

Country Link
EP (1) EP1112108B1 (fr)
JP (1) JP4335455B2 (fr)
DE (3) DE19841875A1 (fr)
WO (1) WO2000015303A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7878419B2 (en) 2006-09-19 2011-02-01 Sta-Rite Industries, Llc Spray head with covers
WO2018006000A1 (fr) * 2016-07-01 2018-01-04 Tyco Fire Products Lp Dispositif à buse de pulvérisation de brouillard d'eau à haute pression et procédés de fourniture d'un impact indirect et direct d'un incendie

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5902591B2 (ja) * 2012-09-21 2016-04-13 能美防災株式会社 高膨張泡消火設備

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1809787A (en) * 1926-06-16 1931-06-09 Kidde & Co Walter Nozzle
GB1018431A (en) * 1963-01-08 1966-01-26 Foamite Ltd Apparatus for producing foam
DE9410663U1 (de) 1994-07-01 1994-08-11 Max Widenmann Armaturenfabrik, 89537 Giengen Kleinstrahlrohr
DE29518911U1 (de) 1995-04-22 1996-01-25 Kamat-Pumpen GmbH & Co KG, 58454 Witten Löschdüsenkopf, insbesondere für eine transportable Löschnebelpistole

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS3936597Y1 (fr) * 1964-03-31 1964-12-07
JPS5148233Y1 (fr) * 1970-04-24 1976-11-19
FR2318684A1 (fr) * 1975-05-02 1977-02-18 Michard Joseph Lance de projection d'eau a jets tourbillonnaires
JPS5797562U (fr) * 1980-12-04 1982-06-15
JPS6373155U (fr) * 1986-10-31 1988-05-16
JPH0539714Y2 (fr) * 1987-01-21 1993-10-08
DK0665761T3 (da) * 1991-02-28 1999-06-23 Goeran Sundholm Sprinklerhoved til brandbekæmpelse
JP3472781B2 (ja) * 1993-12-28 2003-12-02 能美防災株式会社 消火用ノズル
US6173909B1 (en) * 1995-04-22 2001-01-16 Kamat-Pumpen Gmbh & Co. Kg Portable fire extinguishing nozzle arrangement
DK174899B1 (da) * 1997-12-19 2004-02-09 Firexpress Aps Brandslukningsindretning

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1809787A (en) * 1926-06-16 1931-06-09 Kidde & Co Walter Nozzle
GB1018431A (en) * 1963-01-08 1966-01-26 Foamite Ltd Apparatus for producing foam
DE9410663U1 (de) 1994-07-01 1994-08-11 Max Widenmann Armaturenfabrik, 89537 Giengen Kleinstrahlrohr
DE29518911U1 (de) 1995-04-22 1996-01-25 Kamat-Pumpen GmbH & Co KG, 58454 Witten Löschdüsenkopf, insbesondere für eine transportable Löschnebelpistole

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7878419B2 (en) 2006-09-19 2011-02-01 Sta-Rite Industries, Llc Spray head with covers
WO2018006000A1 (fr) * 2016-07-01 2018-01-04 Tyco Fire Products Lp Dispositif à buse de pulvérisation de brouillard d'eau à haute pression et procédés de fourniture d'un impact indirect et direct d'un incendie
CN109689168A (zh) * 2016-07-01 2019-04-26 泰科消防产品有限合伙公司 高压水雾喷嘴装置和用于提供对火焰的间接和直接冲击的方法
AU2017290823B2 (en) * 2016-07-01 2022-12-15 Tyco Fire Products Lp A high pressure water mist nozzle device and methods for providing indirect and direct impingement of a fire

Also Published As

Publication number Publication date
DE29924692U1 (de) 2004-11-11
EP1112108B1 (fr) 2004-06-16
JP4335455B2 (ja) 2009-09-30
DE59909761D1 (de) 2004-07-22
JP2002524222A (ja) 2002-08-06
DE19841875A1 (de) 2000-03-23
EP1112108A1 (fr) 2001-07-04

Similar Documents

Publication Publication Date Title
DE69516792T2 (de) Sprühdüse mit interner Luftmischung
DE69521976T2 (de) Strahldüse für die Anwendung im katalytischen Wirbelschicht-Krackverfahren
DE69122988T2 (de) Niederdruck-Spritzpistole
DE10304386B4 (de) Doppelfluid-Verwirbelungsdüse mit selbstreinigendem Zapfen
EP1170059A2 (fr) Buse de pulvérisation d'un fluide sur une suface
EP0408786A1 (fr) T˻te de buse
EP2100659B1 (fr) Dispositif de production et de pulvérisation d'un aérosol
CH641062A5 (de) Zerstaeuberkopf an einer farbspritzpistole.
DE29518911U1 (de) Löschdüsenkopf, insbesondere für eine transportable Löschnebelpistole
DE29623240U1 (de) Transportable Löschpistole
EP1470864B1 (fr) Buse de pulvérisation à deux fluides
DE102011079982B4 (de) Sprühkopf für reaktive Kunststoffe
EP1112108A1 (fr) Tete de buse d'extinction pour projeter un liquide d'extinction
DE202010015304U1 (de) Düse
DE102011102693B4 (de) Löschdüsenkopf mit Strömungskanal
DE10057429A1 (de) Düse zum Besprühen einer Fläche
DE19539991C1 (de) Schaumwassersprinkler
DE19841876C2 (de) Vorrichtung zur Erzeugung von Löschschaum
EP1516147B1 (fr) Dispositif d'humidification
DE102014104341A1 (de) Verfahren und Vorrichtung zur Erzeugung von Flüssigkeitsnebel
EP1564486A2 (fr) Procédé et dispositif de pulvérisation du combustible liquide pour un appareil de combustion
DE102017113207A1 (de) Zerstäuberdüse zum Zerstäuben eines Fluids
AT527649A1 (de) Düse
DE102013020631B4 (de) Löschdüsenkopf
DD141626A1 (de) Drallduese zur erzeugung von spruehnebeln

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): CN JP RU US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE

121 Ep: the epo has been informed by wipo that ep was designated in this application
DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
WWE Wipo information: entry into national phase

Ref document number: 1999947333

Country of ref document: EP

ENP Entry into the national phase

Ref country code: JP

Ref document number: 2000 569887

Kind code of ref document: A

Format of ref document f/p: F

WWP Wipo information: published in national office

Ref document number: 1999947333

Country of ref document: EP

WWG Wipo information: grant in national office

Ref document number: 1999947333

Country of ref document: EP