EP3595781A1 - Générateur de mousse et gicleur de mousse - Google Patents

Générateur de mousse et gicleur de mousse

Info

Publication number
EP3595781A1
EP3595781A1 EP18720772.5A EP18720772A EP3595781A1 EP 3595781 A1 EP3595781 A1 EP 3595781A1 EP 18720772 A EP18720772 A EP 18720772A EP 3595781 A1 EP3595781 A1 EP 3595781A1
Authority
EP
European Patent Office
Prior art keywords
foam
sprinkler
nozzle
webs
images
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.)
Pending
Application number
EP18720772.5A
Other languages
German (de)
English (en)
Inventor
Markus Thoma
Jens Stubenrauch
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.)
Eurosprinkler AG
Original Assignee
Eurosprinkler AG
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 Eurosprinkler AG filed Critical Eurosprinkler AG
Publication of EP3595781A1 publication Critical patent/EP3595781A1/fr
Pending 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
    • 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
    • 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
    • B05B7/0018—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
    • B05B7/005—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 wherein ambient air is aspirated by a liquid flow
    • B05B7/0056—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 wherein ambient air is aspirated by a liquid flow with disturbing means promoting mixing, e.g. balls, crowns
    • B05B7/0062—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 wherein ambient air is aspirated by a liquid flow with disturbing means promoting mixing, e.g. balls, crowns including sieves, porous members or the like

Definitions

  • the present invention relates to a foam image according to the preamble of patent claim 1 and a foam sprinkler according to the preamble of patent claim 7.
  • Foam sprinklers are mainly used in the field of fire fighting application, since certain fires, especially liquid fires, can not be effectively combated with water, but only with extinguishing foam.
  • Extinguishing foam consists largely of filling gas (for example air), water and a foaming agent.
  • Water and foam are usually in the form of a liquid foam water concentrate, which is distributed in a fire over several foam sprinklers in the fire area.
  • the liquid is known to be thrown through a sieve. Similar to the impact of egg white in ice snow with a whisk, the impact with the sieve causes the foaming by admixing air in the foam water concentrate. The ratio between the volume of foam produced and the volume of the original foam water concentrate becomes
  • a sieve can be arranged between the mouth of the feed line of a sprinkler and the spray plate.
  • a disadvantage of this foam sprinkler is that the foam water concentrate is first foamed through the screen and the foam is then spread over the spray plate. Due to the low density of the foam, the distribution effect of the spray plate is limited, whereby the foam is braked and even partially liquefied.
  • Another disadvantage is that the sieve completely encloses the mouth of the supply line.
  • sprinklers are provided with a closure which is ejected and ejected upon release. In the presented arrangement remains the shutter will hang in the strainer thus affecting the flow and uniform distribution of the foam.
  • Foam water concentrate through the strainer and the larger round holes improve the flow of the foam water concentrate. However, this leads to a lower amount of foam with a lower average expansion factor.
  • the present invention now has the object to improve a foam and a foam sprayer of the type mentioned in such a way that optimum foaming over a large pressure range and a uniform distribution of the foam over a large area can be ensured.
  • the foam images should be lightweight, compact and retrofittable to existing sprinklers and can be produced inexpensively.
  • FIG. 4b embodiment of the foamed image
  • Conventional water sprinklers consist of a nozzle 3 and a spray plate 2, which are connected to connecting parts 4.
  • the spray plate 2 is arranged at a distance from the mouth of the nozzle 3 in a central, aligned with the longitudinal axis of the nozzle 3 layer.
  • This spray plate 2 serves to distribute a liquid which flows out of the nozzle 3, so that this liquid is distributed as homogeneously as possible and over a large area in the vicinity of the foam sprinkler.
  • foam images 1 can be provided with the foam images 1 according to the invention (FIG. 1 a).
  • the foam images 1 is in the direction of flow of the
  • the foam pattern 1 has a curved shape in the direction of the nozzle 3 and is arranged such that the foam pattern 1 projects beyond the spray plate 2 in the direction of the nozzle 3 and the spray plate 2 is thus "in the foam pattern" 1.
  • FIG. 1 A further possible embodiment, wherein the foam image 1 has a depression in the middle, is shown in FIG.
  • Foam water concentrate is thrown through the foam images 1, regardless of the direction in which it is distributed from the spray plate 2, a maximum amount of foam is formed with the most uniform bubble size.
  • This structure with the spray plate 2 in the foam image 1 also has the advantage that it is much more compact than the existing devices, since the total length of the sprinkler is only slightly affected by the additional foam images 1.
  • the foam images 1 can of course also be mounted directly in front of a nozzle 3.
  • This nozzle 3 can also additionally with a Spray plate 2 be equipped to adjust the spray pattern the desired application.
  • the foam image 1 consists of a grid with webs 11 and openings 13 (see Figure 4b).
  • the grille is properly made of metal, such as stainless steel, brass, aluminum or any other metal or metal alloy.
  • the grid may also be made of plastic or other sufficiently stable materials.
  • the foam image 1 must fulfill two essential criteria. First, it should interfere with the flow of foam water concentrate or foam as little as possible, so that the foam maintains a high speed and the spray pattern is not being affected. Secondly, the foaming 1 should ensure the best possible and uniform foaming regardless of the operating pressure.
  • the openings 13 of the foam image 1 must have a sufficient size.
  • a minimum diameter of more than 1 mm, preferably more than 4 mm is provided. Such sizes avoid any risk of overloading or clogging of the foam image 1, even and especially for very high flow rates.
  • Foam sprinklers with a K-factor between K20 to K160 and even K200 could be provided.
  • both foam water concentrate for producing foam 6 and pure water 5 can be sprinkled with the same sprinkler (FIGS. 2a-b).
  • This has for example Advantages for warehouses where a conversion takes place, or even alternately different materials are stored, so that the sprinkler system can sometimes be operated with extinguishing foam and sometimes with water, depending on the stored material.
  • the spray pattern does not change even when retrofitting with an inventive foam images, this also has the advantage that all calculations that have already been made, are further valid and applicable. This may be important if an existing sprinkler system previously used with fluorine extinguishing agent for better foam distribution is now re-used with a foaming agent to allow the use of a fluorine-free extinguishing agent.
  • the foam image 1 is preferably used with the following properties.
  • Foaming takes place by admixing air in the foam water concentrate.
  • the webs 11 of the grid have an elongated average, the longitudinal direction B is approximately perpendicular to the direction of flow A ( Figure 3a). It is particularly advantageous if the ratio b / d width / thickness of the webs 11 is greater than 1, preferably greater than 1.4 (FIG. 3a).
  • the webs 11 preferably have sharp, angular edges 12. Sharp, angular edges 12 cause a strong deflection of the liquid from the webs 11 and promote the formation of turbulence and thus the formation of foam.
  • the foaming agent 1 As the foaming agent 1 is flown through, the stream of foam water concentrate is divided by the webs 11 into many smaller, separate streams. The contact area between the foam water concentrate and the air can thus be influenced by the number of webs 11 on the grid.
  • the shape of the openings 13 has been optimized so that the grid has the same total area a higher total edge length. According to the invention, the grid has diamond-shaped openings 13, with diagonals x and y (FIGS.
  • Such a grid can be produced by various methods, for example by punching and subsequent buckling of a metal sheet, by sintering or any other conventional production method.
  • the use of a commercially available expanded metal mesh or expanded sheet has proved to be particularly efficient.
  • expanded metal the openings 13 are made without loss of material, and there are also sharp edges 12.
  • expanded mesh in many dimensions and materials are commercially available and therefore inexpensive available.
  • the shape and dimensions of some openings 13 may differ slightly from the ideal value, especially around the edges of the foam image 1, where the curvature on strongest is. It has, however shown that this does not affect the effect of the foam screen 1.
  • a foam image 1 is provided, which ensures despite a large openings 13 a strong foaming.
  • VerMumungswar between 4 and 20 can be achieved.
  • the flow of foam water concentrate is neither affected nor impaired, so that the foam is uniformly distributed in the environment and the foam image 1 is not overloaded even at high flow rates.
  • the foaming with the presented foam image 1 works very well over a wide range of pressures and flow rates. Pressure ranges of 0.5 to 15 bar and flow rates between 10 and 1 000 liters per minute were tested. Also possible are flow rates of up to 10'000 liters per minute.
  • foam sprinklers for fighting a fire When a fire breaks out, only those foam sprinklers are triggered, which are located near the fire, depending on the requirements.
  • the pressure in the lines of the sprinkler system is so very high, as well as the Flow rate for the affected foam sprinklers.
  • the spray pattern is kept constant even with large variations of these values, so that an optimal extinguishing effect is achieved.
  • the foam images 1 according to the invention are also very suitable for retrofitting an existing sprinkler.
  • Figures 5a to 5c show how the foam images 1 can be connected by means of adapters 14 with the sprinkler.
  • the adapter 14 is used for correct positioning and attachment of the foam image 1 on the sprinkler with a very small amount of time.
  • the spray pattern is not affected when retrofitting the foam images 1 on an existing sprinkler, ie the connections between the foam and the sprinkler should be located where possible, where there is already a spray shadow. If the foamed image 1 has a depression in the middle, the depth of this depression can be set such that the foamed image 1 without adapter 14 can be fastened directly to the spray plate 2 (FIG. 5 d).
  • the adapter 14 consists of an elongated threaded rod 141, which is arranged in the middle of SchaumbUders 1 (Figure 6a).
  • the threaded rod 14 protrudes from the inside through the central opening of the grid and has a nut with which the foam images is attached from the outside.
  • the spray plate 2 of the sprinkler is equipped in the middle with a thread on which the threaded rod 141 can be screwed.
  • the threaded rod 141 is arranged in the direction of flow behind the spray plate 2 ( Figure 5a).
  • FIG. 6b shows an embodiment variant of the invention in the mounted state.
  • the adapter 14 has a Klprobsette 142 ( Figure 7a), which is at the puncture below the nut, with which the sprinkler was screwed to the pipe, attached ( Figure 7b).
  • This Klprobsette makes it possible to properly position the foam images, easy to attach and retrofit in a very short time.

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Nozzles (AREA)
  • Domestic Plumbing Installations (AREA)

Abstract

L'invention concerne un générateur de mousse optimisé (1) pour le moussage d'un concentré d'eau moussée, constitué d'une grille bombée présentant des ouvertures en forme de losange (13) et des arêtes vives (12). La structure du générateur de mousse renforce la formation de mousse et garantit une distribution uniforme de la mousse sur une grande surface. Les gicleurs d'incendie existants dotés d'une buse (3) et d'un disque de pulvérisation (2) peuvent être équipés du générateur de mousse (1) et être convertis ainsi simplement en gicleurs de mousse. Le générateur de mousse (1) est disposé de manière à faire saillie par rapport au disque de pulvérisation (2) en direction de la buse (3).
EP18720772.5A 2017-03-15 2018-03-12 Générateur de mousse et gicleur de mousse Pending EP3595781A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH00315/17A CH713571A1 (de) 2017-03-15 2017-03-15 Schaumbilder und Schaumsprinkler.
PCT/IB2018/051619 WO2018167638A1 (fr) 2017-03-15 2018-03-12 Générateur de mousse et gicleur de mousse

Publications (1)

Publication Number Publication Date
EP3595781A1 true EP3595781A1 (fr) 2020-01-22

Family

ID=58744921

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18720772.5A Pending EP3595781A1 (fr) 2017-03-15 2018-03-12 Générateur de mousse et gicleur de mousse

Country Status (6)

Country Link
US (1) US11351407B2 (fr)
EP (1) EP3595781A1 (fr)
CN (1) CN110709140B (fr)
CH (1) CH713571A1 (fr)
RU (1) RU2763811C2 (fr)
WO (1) WO2018167638A1 (fr)

Family Cites Families (26)

* Cited by examiner, † Cited by third party
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GB724185A (en) * 1951-05-09 1955-02-16 Pumpindustri Ab Improved method of and apparatus for fire extinguishing
GB1356654A (en) * 1971-05-26 1974-06-12 Chubb Fire Security Ltd Foam generators
US3830309A (en) * 1973-11-16 1974-08-20 Foamex Protection Corp Fire extinguishing apparatus
JPS53146298U (fr) * 1977-04-25 1978-11-17
FR2575082B1 (fr) * 1984-12-21 1990-01-19 Commissariat Energie Atomique Procede de production de mousse et generateur de mousse a debit d'air controle faisant application du procede
US5275763A (en) * 1992-10-26 1994-01-04 Toshiharu Fukai Nozzle for generating bubbles
US5404957A (en) * 1993-10-18 1995-04-11 Mccormack; Pat Fire retardant foam generator
JP3328419B2 (ja) * 1994-05-06 2002-09-24 ヤマトプロテック株式会社 消火装置用泡ヘッド
US5647539A (en) * 1994-12-01 1997-07-15 Calmar Inc. Foamer nozzle assembly for trigger sprayer
DE19539991C1 (de) 1995-10-27 1997-02-27 Preussag Ag Minimax Schaumwassersprinkler
US5820027A (en) 1996-05-14 1998-10-13 Szczurek; Norbert Foam fire nozzle
RU2146179C1 (ru) * 1998-09-28 2000-03-10 Открытое акционерное общество "Источники тока" Способ изготовления просечно-вытяжной сетки
JP4240348B2 (ja) * 1999-08-11 2009-03-18 千住スプリンクラー株式会社 消火用泡ヘッド
DE10004916A1 (de) 2000-02-04 2001-08-16 Preussag Ag Minimax Feuerlöscheinrichtung für ein Schaumkonzentrat und Wasser
US8322633B2 (en) 2006-02-09 2012-12-04 Tyco Fire Products Lp Expansion nozzle assembly to produce inert gas bubbles
US20070256844A1 (en) * 2006-04-20 2007-11-08 Blasing Joseph M Method and apparatus for lock out-tag out of sprinkler heads
KR100765820B1 (ko) 2006-10-24 2007-10-10 주식회사 씨플러스 자력 회전형 포말발생기용 노즐
US7699116B2 (en) * 2007-12-13 2010-04-20 Fm Global Technologies Anti-skipping sprinkler
RU94466U1 (ru) * 2010-02-02 2010-05-27 Открытое акционерное общество "Магистральные нефтепроводы Центральной Сибири" (ОАО "Центрсибнефтепровод") Генератор высокократной пены для пожаротушения
KR20130043630A (ko) * 2010-05-06 2013-04-30 가부시키가이샤 미타니 밸브 용기 내용물의 거품 생성용 어태치먼트, 용기 내용물의 거품 생성용 어태치먼트를 구비한 펌프식 제품 및 에어졸식 제품
CN102380179A (zh) * 2011-10-18 2012-03-21 中国石油化工股份有限公司 一种正压式压缩气体泡沫灭火器
EP2956243B1 (fr) * 2013-02-12 2018-08-22 Tetrosyl Limited Dispositif de pulvérisation sous forme de mousse et sa tête
CN103083844A (zh) * 2013-02-18 2013-05-08 上海中备实业公司 消防泡沫倍增筒
CN203355188U (zh) * 2013-05-02 2013-12-25 浙江快达消防设备有限公司 泡沫喷头
JP2016182225A (ja) 2015-03-26 2016-10-20 日本ドライケミカル株式会社 消火用泡ヘッド
DE102016212391B4 (de) * 2016-07-07 2019-06-13 Fabrik chemischer Präparate von Dr. Richard Sthamer GmbH & Co KG Schaumwassersprinkler

Also Published As

Publication number Publication date
US20200023216A1 (en) 2020-01-23
CH713571A1 (de) 2018-09-28
RU2763811C2 (ru) 2022-01-11
WO2018167638A1 (fr) 2018-09-20
CN110709140A (zh) 2020-01-17
RU2019132416A (ru) 2021-04-15
RU2019132416A3 (fr) 2021-07-06
CN110709140B (zh) 2022-05-03
US11351407B2 (en) 2022-06-07

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