EP0507665B1 - Zerstäubungskopf eines Feuerlöschers - Google Patents

Zerstäubungskopf eines Feuerlöschers Download PDF

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Publication number
EP0507665B1
EP0507665B1 EP92400890A EP92400890A EP0507665B1 EP 0507665 B1 EP0507665 B1 EP 0507665B1 EP 92400890 A EP92400890 A EP 92400890A EP 92400890 A EP92400890 A EP 92400890A EP 0507665 B1 EP0507665 B1 EP 0507665B1
Authority
EP
European Patent Office
Prior art keywords
diffuser
atomising head
head according
block
outlet
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 - Lifetime
Application number
EP92400890A
Other languages
English (en)
French (fr)
Other versions
EP0507665A1 (de
Inventor
Alphonse Taupin
Claudius Faure
André Gandon
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.)
Compagnie Centrale Sicli SA
Original Assignee
Compagnie Centrale Sicli SA
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 Compagnie Centrale Sicli SA filed Critical Compagnie Centrale Sicli SA
Publication of EP0507665A1 publication Critical patent/EP0507665A1/de
Application granted granted Critical
Publication of EP0507665B1 publication Critical patent/EP0507665B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • A62C31/05—Nozzles specially adapted for fire-extinguishing with two or more outlets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/50—Arrangements for cleaning; Arrangements for preventing deposits, drying-out or blockage; Arrangements for detecting improper discharge caused by the presence of foreign matter

Definitions

  • the invention relates to a water fire extinguisher and more specifically relates to the spray head of extinguishing agent.
  • the extinguishers used until now consist of a reservoir filled with fluid - generally water - which is closed at its top by a distribution head having mechanical means capable of admitting water into a spray head as soon as a user acted on the trigger gun. Water is sprayed outside by an outlet diffuser whose role is to orient and focus the jet of extinguishing agent to increase its range.
  • the known diffusers however have some drawbacks. Apart from their brittleness to impact, they are often obstructed, especially when using a spray can itself to clear, for example, calcined products. And then the flow rates and the ranges of the jets emitted by the usual rods are insufficient while the outlet pressures could allow better performance.
  • the invention provides a spray head equipped with a diffuser of new design which avoids the aforementioned drawbacks and considerably improves the spraying range.
  • the main object of the invention therefore consists of a sprinkler spray head having the characteristics according to claim 1.
  • the emission orifice is delimited by an inner ring whose inner diameter is substantially half the diameter of the outer crown, a circular groove being formed between the two crowns.
  • the mouths of the orifices on the downstream side of the pellet being located side by side and at the center of said pellet.
  • the angle of convergence of the two emission orifices is approximately 15 ° relative to the axis of the emission conduit
  • the spray rod 1 shown in Figure 1 is advantageously made of metal which allows it to be used if necessary as a cutter. It has at one end of a nozzle 2 for connection to a trigger blowgun and at the other end of a diffuser defined as a whole by the reference 3. On the side of the rod is provided a hook 4. According to a variant not shown, the diffuser 3 is connected by a suitable nozzle, directly at the end of the blow gun.
  • the shape and structure of the diffuser 3 appear more clearly in FIG. 2. Its general outlet axis forms an angle ⁇ of 60 ° with the conduit 5 of the rod 1.
  • the outer body of the diffuser itself has a general shape slightly tapered in decreasing diameter ending in an opening delimited by a outer ring 6. Set back therefrom the emission orifice 7 is delimited by an inner ring 17 whose internal diameter on the one hand is substantially half the diameter of the crown 6, and on the other hand is substantially equal to the height of the withdrawal relative to the outer ring 6. A circular groove 8 is formed between the two rings.
  • the transmission orifice is supplied by a transmission conduit 9 which communicates with the conduit 5
  • a diffusion patch 10 better visible in FIGS. 3 and 4.
  • This patch is a small plastic part of general cylindrical shape crossed by two small orifices 11 converging downstream of the diffuser. These orifices open upstream between two lateral wings 12 of the patch, two small shoulders 13 of which serve to position the patch at the upstream inlet of the emission conduit.
  • the two mouths 11a of the orifices 11 are spaced from one another while on the downstream side the mouths 11b are located side by side, in the center of the patch.
  • the angle of convergence of the two emission orifices 11 is approximately 15 ° relative to the axis of the conduit.
  • the patch 10 has a thickness which represents and occupies approximately one fifth of the total length of the emission conduit 9. Since it is housed at the bottom of said conduit, this means that the jets of extinguishing agent coming from the orifices 11 converge inside the emission conduit, quite far from its orifice 7. This creates a plentiful effect of the diffuser and makes it possible to increase the range of the jet with an improved regular flow.
  • the rod 1 itself is made of metal makes it more resistant and insensitive to heat, and it can be used to stir up debris without risk of obstruction of the diffuser, because the outer ring 6 ensures effective protection of the emitting orifice set back.

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)

Claims (7)

  1. Zerstäubungskopf eines Feuerlöschers, der am Ende einer Abblasvorrichtung befestigt ist und in einem Diffusor (3) endet, dessen Öffnung (7) zum Ausstoß des Feuerlöschmittels durch den Diffusor zurückgesetzt und im Inneren eines Ringes (6) angeordnet ist, der den Außenkörper bzw. - mantel des Diffusors begrenzt,
    dadurch gekennzeichnet,
    daß die Ausstoßleitung (9) des Feuerlöschmittels zur Ausstoßöffnung hin durch eine Diffusorscheibe (10) verschlossen ist, die von mindestens zwei Kanälen (11) durchquert ist, die stromabwärts des Diffusors konvergieren und stromaufwärts zwischen zwei seitlichen Flanschen (12) der Scheibe münden, und
    daß die Scheibe am Anfang der Ausstoßleitung sitzt und etwa ein Fünftel deren Gesamtlänge einnimmt.
  2. Zerstäubungskopf nach Anspruch 1,
    dadurch gekennzeichnet,
    daß der Außenkörper des Diffusors (3) eine leicht konische Form mit abnehmendem Durchmesser aufweist, die in dem Ring (6) endet.
  3. Zerstäubungskopf nach Anspruch 1 oder 2,
    dadurch gekennzeichnet,
    daß die Ausstoßöffnung (7) des Diffusors (3) von einem inneren Ring (17) eingefaßt ist, dessen Innendurchmesser in etwa die Hälfte des Durchmessers des äußeren Rings (6) beträgt, und
    daß eine Ringnut (8) zwischen den beiden Ringen angeordnet ist.
  4. Zerstäubungskopf nach einem der Ansprüche 1 bis 3,
    dadurch gekennzeichnet,
    daß der Diffusor (3) an das Ende eines metallischen Zerstäuberrohrs (1) montiert ist, das mit der Abblasvorrichtung verbunden ist.
  5. Zerstäubungskopf nach einem der Ansprüche 1 bis 3,
    dadurch gekennzeichnet,
    daß der Diffusor (3) direkt an das Ende der Abblasvorrichtung montiert ist.
  6. Zerstäubungskopf nach Anspruch 1,
    dadurch gekennzeichnet,
    daß der Konvergenzwinkel der zwei Ausstoßkanäle (11) ungefähr 15° zur Achse der Ausstoßleitung (9) beträgt.
  7. Zerstäubungskopf nach Anspruch 1,
    dadurch gekennzeichnet,
    daß die Flansche (12) der Diffusorscheibe (10) mit kleinen Absätzen (13) versehen sind, die zur Positionierung der Scheibe am stromaufwärts gelegenen Eingang der Ausstoßleitung (9) dienen.
EP92400890A 1991-04-05 1992-03-31 Zerstäubungskopf eines Feuerlöschers Expired - Lifetime EP0507665B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9104161A FR2674772B1 (fr) 1991-04-05 1991-04-05 Tete pulverisatrice d'extincteur.
FR9104161 1991-04-05

Publications (2)

Publication Number Publication Date
EP0507665A1 EP0507665A1 (de) 1992-10-07
EP0507665B1 true EP0507665B1 (de) 1996-07-10

Family

ID=9411516

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92400890A Expired - Lifetime EP0507665B1 (de) 1991-04-05 1992-03-31 Zerstäubungskopf eines Feuerlöschers

Country Status (4)

Country Link
EP (1) EP0507665B1 (de)
DE (1) DE69212029T2 (de)
ES (1) ES2092071T3 (de)
FR (1) FR2674772B1 (de)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2364848A (en) * 1944-01-19 1944-12-12 Gordon F Hurst Fog nozzle
US2388508A (en) * 1944-03-04 1945-11-06 Timpson Lewis G Morris Nozzle
AU473702B2 (en) * 1971-08-13 1976-07-01 Ransburg Electro-Coating Corp Apparatus for and method of spraying different coloured powders
DE3337851A1 (de) * 1983-10-18 1985-04-25 Siemens AG, 1000 Berlin und 8000 München Verfahren zum beschichten der oberflaeche des halbleiterkoerpers einer solarzelle
US4943005A (en) * 1989-07-26 1990-07-24 Illinois Tool Works, Inc. Rotary atomizing device

Also Published As

Publication number Publication date
FR2674772B1 (fr) 1993-12-24
DE69212029D1 (de) 1996-08-14
ES2092071T3 (es) 1996-11-16
FR2674772A1 (fr) 1992-10-09
DE69212029T2 (de) 1997-08-14
EP0507665A1 (de) 1992-10-07

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