EP3266503A1 - Pulvérisateur d'écume - Google Patents

Pulvérisateur d'écume Download PDF

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Publication number
EP3266503A1
EP3266503A1 EP17177762.6A EP17177762A EP3266503A1 EP 3266503 A1 EP3266503 A1 EP 3266503A1 EP 17177762 A EP17177762 A EP 17177762A EP 3266503 A1 EP3266503 A1 EP 3266503A1
Authority
EP
European Patent Office
Prior art keywords
cage
spray plate
extinguishing fluid
height
extinguishing
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.)
Granted
Application number
EP17177762.6A
Other languages
German (de)
English (en)
Other versions
EP3266503B1 (fr
Inventor
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.)
Fabrik Chemischer Praparate Von Dr Richard Sthamer & Co KG GmbH
Fabrik Chemischer Praparate Von Dr Richard Sthamer & Co KG GmbH
Original Assignee
Fabrik Chemischer Praparate Von Dr Richard Sthamer & Co KG GmbH
Fabrik Chemischer Praparate Von Dr Richard Sthamer & Co KG 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 Fabrik Chemischer Praparate Von Dr Richard Sthamer & Co KG GmbH, Fabrik Chemischer Praparate Von Dr Richard Sthamer & Co KG GmbH filed Critical Fabrik Chemischer Praparate Von Dr Richard Sthamer & Co KG GmbH
Priority to SI201730158T priority Critical patent/SI3266503T1/sl
Priority to PL17177762T priority patent/PL3266503T3/pl
Publication of EP3266503A1 publication Critical patent/EP3266503A1/fr
Application granted granted Critical
Publication of EP3266503B1 publication Critical patent/EP3266503B1/fr
Priority to HRP20200057TT priority patent/HRP20200057T1/hr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C37/00—Control of fire-fighting equipment
    • A62C37/08—Control of fire-fighting equipment comprising an outlet device containing a sensor, or itself being the sensor, i.e. self-contained sprinklers
    • 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
    • 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
    • B05B15/14—Arrangements for preventing or controlling structural damage to spraying apparatus or its outlets, e.g. for breaking at desired places; Arrangements for handling or replacing damaged parts
    • B05B15/16—Arrangements for preventing or controlling structural damage to spraying apparatus or its outlets, e.g. for breaking at desired places; Arrangements for handling or replacing damaged parts for preventing non-intended contact between spray heads or nozzles and foreign bodies, e.g. nozzle guards

Definitions

  • the invention relates to a sprinkler with a cage for producing extinguishing foam from a foaming agent-containing extinguishing fluid (for example water) for combating fires.
  • a foaming agent-containing extinguishing fluid for example water
  • Fire-extinguishing foam consists essentially of air, water and a surfactant-containing foaming agent.
  • the extinguishing foam can be distinguished into fluorosurfactant-containing foams ("AFFF” or "A3F” foam extinguishing agent) and fluorosurfactant-free extinguishing foam, whose different mode of action is briefly explained below.
  • AFFF foaming agent When using AFFF foaming agent, the fluorosurfactants, due to their chemical structure different from conventional hydrocarbon surfactants, cause a vapor-tight, aqueous liquid film of usually 10-30 ⁇ m thickness between the burning surface and the foam. This fluorosurfactant caused water film acts as a barrier against the escape of fumes and prevents an inflammation. Because of these properties, AFFF foaming agents are also referred to as “film-forming foams", which is reflected in their abbreviation "AFFF" or "A3F” for "Aqeous F ilm F orming F oam".
  • Another significant advantage associated with film formation is that the foam layer deposited on the film does not have to have an outstanding barrier function, ie the foam must have no or only a low foaming number.
  • AFFF Foaming agents with a foaming of less than 4, usually between 1.5 and 3.0 sufficient, since the main quenching effect caused by the fluorine surfactant gas-tight liquid film on the burning surface is effected.
  • These aforementioned low foaming numbers are achieved using conventional sprinklers designed for operation with water or AFFF foam extinguishers.
  • these conventional sprinklers can not afford a higher foaming number because of their design. But then it has to technically complex special sprinklers, for example, in the DE 195 39 991 C1 disclosed type of a heavy foam sprinkler, are used, which are about 40% to 70% more expensive and the construction much more complicated than the conventional sprinklers.
  • Such heavy foam sprinklers are installed in particular where AFFF extinguishing foams must not be used due to the harmful properties of the fluorosurfactant component (persistent, bioaccumulating, toxic) or conventional sprinklers previously operated with AFFF extinguishing foam have to be converted to heavy foam sprinklers due to the prohibition of fluorosurfactants. See, for example, the application restrictions of Directive 2006/122 / EC. Since fluorosurfactant-free extinguishing foam lacks the film barrier in the absence of fluorosurfactants, essentially only the foam layer acquires the required barrier function. However, this is effective only from a VerDumungsiere of 4, from which one usually speaks of foam and the use of special above-mentioned Schwerschaumsprinkler requires.
  • the cage has a height which allows most of the extinguishing fluid deflected by the spray plate to pass through the cage according to the invention.
  • This height (h 2 ) of the cage is advantageously at least 0.50 times, preferably 0.75 times, more preferably 1.00 times the outside diameter (d 1 ) of the spray plate and may be, for example, the height (h 1 ) correspond to the Sprinkler responsibleraums.
  • the height (h 2 ) of the cage can be defined such that it corresponds to the height (h 1 ) of the sprinkler space, preferably less than 0.75 times that of the height (h 1 ) of the sprinkler space, more preferably less than 0.50 times that of the height (h 1 ) of the sprinkler space.
  • the cage according to the invention may have any suitable shape, for example the shape of a hollow cylinder, a hollow cone, a hollow truncated cone, a Holpyramide, a hollow sphere or a combination of these forms, wherein the hollow cylinder shape is particularly preferred.
  • the cage may extend in the axial direction tapering beyond its area that surrounds the gap and, for example, open into an opening with an inner diameter that is larger than the outer diameter (d 1 ) of the spray plate. The latter is particularly advantageous to allow unhindered falling out of small parts of the commonly used trigger elements (bursting with liquid, fusible link, etc.) from the sprinkler, which otherwise caught in the cage sieve or grid openings can prevent their intended function as VerDumungsetti.
  • the cage is shaped as a wood cylinder, the (upper) end facing the extinguishing fluid outlet opening is open over the entire diameter surface, while the opposite end tapers axially at the level of the spray plate and opens into an opening below the Sprühtellers.
  • the cage grid openings have a width between 2.00 mm and 6.00 mm and a length between 3.00 mm and 8.00 mm, preferably a width between 2.50 mm and 4.50 mm and a Length between 5.00 mm and 7.00 mm.
  • the cage grid can further advantageously, an expanded metal mesh with a mesh width between 2.50 mm and 4.50 mm, a mesh length of 5.00 mm to 7.00 mm and a thickness of 0.40 mm to 0.80 mm, preferably a mesh width of 3.50 mm, a mesh length of 6.00 mm and a thickness of 0.60 mm.
  • the cage has screen openings with a diameter of 1.50 mm to 2.50 mm, preferably 1.75 mm to 2.25 mm, particularly preferably 2.00 mm.
  • the cage is preferably made of metal, for example made of steel, and particularly preferably made of stainless steel (eg stainless steel V2A).
  • the cage further comprises a holder for attaching the cage to the sprinkler.
  • This support may, for example, be designed as retaining arms which fix the cage with the base of the sprinkler in the region of the extinguishing fluid outlet opening on the sprinkler body or on its connecting thread arranged above it, for example via several (for example 2, 3, 4, 5 or 6) clamping feet.
  • the support arms or clamp feet can be provided with predetermined breaking points for easier shortening in order to be able to make a positioning of the cage in relation to the sprinkler in a simple manner depending on the sprinkler and the installation conditions.
  • a securing element for example a binding element (cable tie, metal strip, etc.) that radially surrounds the retaining arms or clamping feet.
  • the cage according to the invention is particularly suitable for conventional shielded sprinklers, which can be upgraded or retrofitted with the aid of the cage in order to achieve higher foaming values. This is especially true for Foaming agent-containing fluorosurfactant-free extinguishing fluids in which the advantage of the cage is particularly significant.
  • the cage according to the invention it is possible with the cage according to the invention to produce extinguishing foam having a foaming number of from 3 to 9, preferably from 4 to 8, more preferably from 4.5 to 7, particularly preferably from 5 to 6.
  • the subject matter of the invention is furthermore a set or an assembly which, in addition to the sprinkler, comprises the above-described cage according to the invention.
  • the sprinkler itself is known from the prior art and comprises an extinguishing fluid outlet opening and a spray plate which is opposite the extinguishing fluid outlet opening in the axial direction, as described in more detail above in connection with the cage.
  • the arrangement of the set or assembly is such that the cage envelops the space formed on the base (G) of the spray plate such that the base (G) of the spray plate is flush with the underside of the cage remote from the extinguishing fluid outlet ,
  • the invention furthermore relates to the use of the above-described cage, set or assembly according to the invention for the production of extinguishing foam from a foaming agent-containing extinguishing fluid and to a method for producing extinguishing foam from a foaming agent-containing extinguishing fluid.
  • the method comprises the steps of providing a foaming agent-containing extinguishing fluid and an assembly described above, as well as the passage of the extinguishing fluid deflected from the extinguishing fluid outlet and the spray plate through the cage according to the invention, wherein the extinguishing foam is formed with the passage of the extinguishing fluid through the cage from the extinguishing fluid.
  • the foaming numbers are significantly lower than those for heavy foam starting at about 4.
  • the test series also shows that there are three different ones Fluorosurfactant-free extinguishing fluids, which are designed for deviating foaming behavior, show hardly any deviating expansion numbers when using the cage according to the invention.
  • FIG. 1 shows the structure of a conventional sprinkler 2 in combination with the inventive cage 1.
  • the sprinkler 2 has at its head part an external thread for screwing into a corresponding wall, floor or ceiling installation and at the opposite end an extinguishing fluid outlet opening 3.
  • the head part of the sprinkler. 3 resting on a bridge which comprises two side-down to a support together running supports which open into a support and formed on the underside of a spray plate 4 with a diameter d 1 , a base G and at a distance h 1 to the extinguishing fluid outlet opening 3 is.
  • the cage 1 has an upper cylindrical portion with a diameter d 2 and a lower conical portion, wherein the conical portion opens into an opening.
  • the upper cylindrical portion of the cage 1 with a height h 2 terminates at the level of the spray plate 4 and is spaced therefrom with a clearance b.
  • the cage comprises the intermediate space 5 between the spray plate 4 and the extinguishing fluid outlet opening 3 by means of (dashed) generatrices.
  • the cage 1 is clamped by means of retaining arms 6 to the head part of the sprinkler 2.

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
  • Nozzles (AREA)
  • Housing For Livestock And Birds (AREA)
EP17177762.6A 2016-07-07 2017-06-26 Utilisation d'un tamis et procédé pour produire de la mousse Active EP3266503B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SI201730158T SI3266503T1 (sl) 2016-07-07 2017-06-26 Uporaba kletke in postopek za tvorjenje gasilne pene
PL17177762T PL3266503T3 (pl) 2016-07-07 2017-06-26 Zastosowanie klatki i sposób wytwarzania piany gaśniczej
HRP20200057TT HRP20200057T1 (hr) 2016-07-07 2020-01-15 Korištenje sitene analize i metode za stvaranje pjene

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102016212391.2A DE102016212391B4 (de) 2016-07-07 2016-07-07 Schaumwassersprinkler

Publications (2)

Publication Number Publication Date
EP3266503A1 true EP3266503A1 (fr) 2018-01-10
EP3266503B1 EP3266503B1 (fr) 2019-10-16

Family

ID=59215629

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17177762.6A Active EP3266503B1 (fr) 2016-07-07 2017-06-26 Utilisation d'un tamis et procédé pour produire de la mousse

Country Status (13)

Country Link
US (1) US10603532B2 (fr)
EP (1) EP3266503B1 (fr)
CN (1) CN107583221B (fr)
DE (1) DE102016212391B4 (fr)
DK (1) DK3266503T3 (fr)
ES (1) ES2767362T3 (fr)
HR (1) HRP20200057T1 (fr)
HU (1) HUE047992T2 (fr)
LT (1) LT3266503T (fr)
PL (1) PL3266503T3 (fr)
PT (1) PT3266503T (fr)
RU (1) RU2700725C2 (fr)
SI (1) SI3266503T1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018167638A1 (fr) * 2017-03-15 2018-09-20 Jomos Eurosprinkler Ag Générateur de mousse et gicleur de mousse

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202022102724U1 (de) 2022-05-18 2022-07-14 Gi-Ro Technik Gmbh & Co. Kg Schutzkorb für einen an einer Löschwasserleitung angebrachten Sprinklerkopf

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07265452A (ja) * 1994-03-31 1995-10-17 Hochiki Corp 消火用泡ヘッド
DE19539991C1 (de) * 1995-10-27 1997-02-27 Preussag Ag Minimax Schaumwassersprinkler
JP2009297195A (ja) * 2008-06-12 2009-12-24 Hochiki Corp 閉鎖型泡消火ヘッド
US20100243283A1 (en) * 2009-03-25 2010-09-30 The Viking Corporation Sprinkler Skipping Shield With Improved Airflow

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3797746A (en) * 1972-08-17 1974-03-19 Hodgman Mfg Co Inc Sprinkler guard
JP2604717Y2 (ja) * 1993-04-23 2000-06-05 千住スプリンクラー株式会社 スプリンクラーヘッド用シーリングプレート
US5803363A (en) * 1993-11-02 1998-09-08 Sumitomo Chemical Company, Limited Liquid sprinkler having a hemispherical head with a pattern of nozzle openings
US5893418A (en) * 1997-12-15 1999-04-13 The Reliable Automatic Sprinkler Co., Inc. Sprinkle guard
US6484809B1 (en) * 2000-05-09 2002-11-26 Innatech, Llc Molded sprinkler cover assembly and method for manufacturing the same
SI1552860T1 (sl) * 2003-12-17 2010-02-26 Claude Ciocca Gasilni sistem s peno
US20070256844A1 (en) * 2006-04-20 2007-11-08 Blasing Joseph M Method and apparatus for lock out-tag out of sprinkler heads
US7699116B2 (en) * 2007-12-13 2010-04-20 Fm Global Technologies Anti-skipping sprinkler

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07265452A (ja) * 1994-03-31 1995-10-17 Hochiki Corp 消火用泡ヘッド
DE19539991C1 (de) * 1995-10-27 1997-02-27 Preussag Ag Minimax Schaumwassersprinkler
JP2009297195A (ja) * 2008-06-12 2009-12-24 Hochiki Corp 閉鎖型泡消火ヘッド
US20100243283A1 (en) * 2009-03-25 2010-09-30 The Viking Corporation Sprinkler Skipping Shield With Improved Airflow

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Week 199603, Derwent World Patents Index; AN 1996-022803, XP002775001 *
DATABASE WPI Week 201002, Derwent World Patents Index; AN 2009-S57375, XP002775002 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018167638A1 (fr) * 2017-03-15 2018-09-20 Jomos Eurosprinkler Ag Générateur de mousse et gicleur de mousse

Also Published As

Publication number Publication date
RU2700725C2 (ru) 2019-09-19
EP3266503B1 (fr) 2019-10-16
US20180064974A1 (en) 2018-03-08
HUE047992T2 (hu) 2020-05-28
LT3266503T (lt) 2020-01-10
SI3266503T1 (sl) 2020-03-31
CN107583221B (zh) 2020-06-16
RU2017123573A (ru) 2019-01-09
PL3266503T3 (pl) 2020-05-18
CN107583221A (zh) 2018-01-16
DK3266503T3 (da) 2020-01-27
RU2017123573A3 (fr) 2019-07-30
DE102016212391B4 (de) 2019-06-13
US10603532B2 (en) 2020-03-31
DE102016212391A1 (de) 2018-01-11
PT3266503T (pt) 2020-01-22
ES2767362T3 (es) 2020-06-17
HRP20200057T1 (hr) 2020-04-03

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