EP0759794B1 - Buse pour sprinkler - Google Patents

Buse pour sprinkler Download PDF

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Publication number
EP0759794B1
EP0759794B1 EP95920055A EP95920055A EP0759794B1 EP 0759794 B1 EP0759794 B1 EP 0759794B1 EP 95920055 A EP95920055 A EP 95920055A EP 95920055 A EP95920055 A EP 95920055A EP 0759794 B1 EP0759794 B1 EP 0759794B1
Authority
EP
European Patent Office
Prior art keywords
sprinkler nozzle
star
nozzle according
support cone
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
EP95920055A
Other languages
German (de)
English (en)
Other versions
EP0759794A1 (fr
Inventor
Werner Lüddecke
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.)
Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0759794A1 publication Critical patent/EP0759794A1/fr
Application granted granted Critical
Publication of EP0759794B1 publication Critical patent/EP0759794B1/fr
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
    • 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
    • A62C31/00—Delivery of fire-extinguishing material
    • A62C31/02—Nozzles specially adapted for fire-extinguishing

Definitions

  • the present invention relates to a sprinkler nozzle as used for extinguishing Fires in buildings such as Hotels or in particular industrial plants will.
  • Sprinkler nozzles of this type essentially consist of a liquid channel, e.g. with pressurized water connection, a foot cone at a certain distance from the Exit of the channel and distribution star arranged below with radial slots.
  • the foot cone and the head receiving the canal are connected by a bridge connected, the distributor star is a separate part and with the foot mostly screwed.
  • Such a sprinkler nozzle is e.g. from the German utility model G 92 15 957 become known, in which the liquid channel in the direction of flow tapered and being the surface lines of the channel in a support cone converge, the foot of the kinked distributor star wearing.
  • DE 32 25 798 A1 discloses an extinguishing shower in which after ejecting a closure element in the form of a glass vial Extinguishing liquid against a spray plate cranked against the direction of flow is directed, a head receptacle in the middle of the plane of the teeth of the spray plate in the form of a bore.
  • a disadvantage of the conventional sprinklers is that they foam is unsatisfactory spread with a small spreading circle, which is why special constructions are usually required that the radiation from the distributor star is not radial, but usually takes place at a relatively large angle to the star plane and that relatively short throwing distances can be achieved even when using liquids. Furthermore, these nozzles are constructed in several parts.
  • the present invention has therefore set itself the task of a sprinkler nozzle to create the type described above, which can be cast in one piece (Brass), with the help of which even foams can be applied with long ranges can be and with which overall significantly increased throw ranges can be achieved, the radiation of the applied foam or (Extinguishing) liquid takes place essentially perpendicular to the central axis of the nozzle.
  • a sprinkler nozzle for spraying Foam and / or water especially for extinguishing purposes consisting of a headboard with one arranged in it, in the direction of the supplied medium tapered channel with inlet and outlet and one adjoining these Bridge with supports spaced apart from each other and joined at the foot exists between which a support cone is arranged, which on a Distribution star rests and the distance between the outlet of the channel and the baffle pot is approximately equal to the distance between the outlet and the inlet of the head and wherein the surface lines of the conical taper of the channel in the support cone converge, in which, according to the invention, the carrier cone has a Baffle pot, which consists of a cylindrical bore and an inner cone Soil exists, with the surface lines of the channel converging in the impact pot and the surface of the distributor star facing the head part with the plane perpendicular to the central axis the nozzle includes an angle ⁇ of 0 to 5 °, preferably 3 °.
  • the distribution star has a material thickness of about 3 mm must have, which surprisingly also has a positive influence on the Sprinkler efficiency.
  • a particularly preferred geometry of the device is a diameter the outlet of 6-8 mm with an inlet diameter of 13-17 mm with a length of the generatrix of the inner cone of the head of about 40 mm - and about the same distance from the impact pot - with the star one diameter of about 30-40 mm (preferably 35 mm) and 16 slots with one Has a distance of about 2.5 mm and a length of 6-8 mm.
  • Such a sprinkler nozzle is characterized by very long ranges, however becomes - which is desirable in some applications - the space inside of the spray circuit is less wetted than the periphery.
  • the present invention however also allows a heavy spraying of the entire surface of the Spray circuit, for which only the slot geometry has to be changed.
  • distribution stars designed for long ranges is Slot length about 6-8 mm, the slots are all the same length. Surprisingly the entire spray circuit is applied evenly then when half of the slots are continuous up to the support cone become, i.e. have a length of about 12-14 mm.
  • the sprinkler nozzle is made of gunmetal.
  • the channel is also molded in the head, so that not one as usual Hole must be drilled afterwards.
  • a shoulder on the support cone towards the impact pot to be provided together with the relatively sharp upper edge of the baffle for a desired highly effective swirling of the medium to be applied before hitting the distribution star.
  • a geometry of the nozzle has proven to be optimal, in which the Radius of the star is about three times the distance between the top edge of the baffle from the star surface, the slight inclination of preferably maximum 3 ° of the star surface to that perpendicular to the longitudinal axis Layer in addition to a radiation optimization at the same time for a good one Demouldability of the one-piece molded nozzle ensures.
  • Figure 1 shows the structure of the sprinkler nozzle according to the invention. It consists of the head 12 with an external thread 16 for screwing into a corresponding ceiling installation.
  • the head 12 rests on a bridge 4, which comprises two supports 5, 6 which converge laterally downward to form a support cone 9.
  • the supports 5, 6 taper downwards and can rest on the foot side both on the support cone 9 and on the distributor star 8, on which they are then placed approximately vertically.
  • a relatively small impact pot 7 is seated on the support cone 9, on the support cone 9 a paragraph 18 is formed. Below the support cone 9 is in one piece with this molded onto the distributor star 8.
  • the head 12 there is a conically converging between inlet 2 and outlet 3 Channel 1, the surface lines 13 of which are aligned in this way, or its cone is dimensioned so that their extension (auxiliary lines 19) converge in the baffle 7.
  • the baffle 7 also has at least one in its base small inner cone 11, which ends at the level of paragraph 18. Above the Inner cone 11 is adjoined by a cylindrical bore 23.
  • the area below the head 12 shows between the supports 5, 6 obliquely inwards directed flattenings 20.
  • the supports 5, 6 are outside converged, i.e. they have corresponding tapers 22 to avoid shadowing the flow through the supports 5, 6.
  • Their cross section is preferably approximately elliptical.
  • the distance between the upper edge of inlet 2 and lower edge of outlet 3 is approximately same size as the distance between the lower edge of outlet 3 and the upper edge of the impact pot 7, the following dimensions have proven particularly useful: Distance baffle pot upper edge to lower edge outlet 3 19 mm (diameter outlet 6-8; Diameter inlet 2 11-14.7 mm) and distance between outlet and inlet edges equal to 20 mm.
  • the impact pot 7 has an upper opening with a diameter of approximately 4 mm and is about 2.5 mm deep (bore 23), the support cone 9 being a height of about 10.5 mm and has a diameter of 7 at the shoulder 18 and lower end on the distributor star 8 of about 10 mm.
  • the Distribution star 8 is about 3 mm thick and has a diameter of about 36 mm, is about 20% more than conventional devices enlarged.
  • Figure 2 shows the same device in side view.
  • the head 12 with (conical) external thread 16, the inlet 2 and the outlet 3 and the flats 20 on both sides.
  • a support 5 which is molded onto the support cone 9.
  • the latter carries the baffle 7 and rests on the distributor star 8.
  • the supports 5, 6 can be smooth, but in particular can be rounded in a streamlined manner.
  • the front support 5 is cut at A and B, so that there is a clear view of the impact pot 7.
  • the taper 22 on both sides can be seen, which can also be applied further upwards
  • Figure 3 shows a section AA (of Figure 1) and shows the view of the distributor star 8. This is circular in shape and provided with sixteen slots 10 which end at an auxiliary circuit 21.
  • the slots are approximately 2.5 mm wide and converge inwards so that they can be removed from the mold.
  • the auxiliary circle has a diameter of approx. 21 mm.
  • the support cone 9, which carries the impact pot 7, can be seen centrally on both sides thereof are the supports 5, 6 which are cut in the hatched area and have continuous bevels 17.
  • all slots 10 are of equal length, i.e. about 7 mm long a star diameter of about 17 mm.
  • the Change spray pattern i.e. the edge less, but the inside of the circle to work harder.

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)
  • Catching Or Destruction (AREA)
  • Details Or Accessories Of Spraying Plant Or Apparatus (AREA)

Claims (9)

  1. Buse pour sprinkler servant à pulvériser de la mousse et/ou de l'eau, notamment à des fins d'extinction d'incendie, formée par une partie de tête (12) à l'intérieur de laquelle est situé un canal (1) qui se rétrécit dans la direction d'alimentation du milieu amené et qui est pourvu d'une entrée et d'une sortie, un pont contigu à la partie de tête et comprenant des montants (5, 6) situés à distance l'un de l'autre qui sont réunis sur le côté du pied et entre lesquels est situé un cône de support (9) qui repose sur un élément de distribution en étoile (8), et la distance entre la sortie (3) du canal (1) et l'élément brise-jet (7) étant à peu près égale à la distance entre la sortie (3) et l'entrée (2) de la tête (12) et les lignes périphériques (13) du rétrécissement conique du canal (1) convergeant dans le cône de support (9), caractérisée par les caractéristiques suivantes:
    a) le cône de support (9) est pourvu d'un élément brise-jet (7) qui est formé par un alésage cylindrique (23) et un cône interne (11) en tant que fond;
    b) les lignes périphériques (13) du canal (1) convergent dans l'élément brise-jet (7);
    c) la surface (14) de l'élément de distribution en étoile (8) tournée vers la partie de tête forme avec le plan perpendiculaire par rapport à l'axe de la buse un angle α mesurant de 0 à 5°, de préférence 3°.
  2. Buse pour sprinkler selon la revendication 1, caractérisée en ce que l'élément de distribution en étoile (8) est solidaire avec le cône de support (9).
  3. Buse pour sprinkler selon la revendication 1 ou 2, caractérisée en ce que l'élément de distribution en étoile (8) a une épaisseur d'environ 3 mm.
  4. Buse pour sprinkler selon l'une ou plusieurs des revendications 1 à 3, caractérisée en ce que, pour une sortie (3) mesurant 6-8 mm de diamètre et une entrée mesurant 13-17 mm de diamètre, l'élément de distribution en étoile (8) a un diamètre d'environ 30-40 mm, de préférence 35 mm, et possède seize fentes radiales (10) mesurant environ 7 mm de long.
  5. Buse pour sprinkler selon l'une ou plusieurs des revendications 1 à 4, caractérisée en ce que les montants (5, 6) présentent des rétrécissements (22) dans la région de l'élément brise-jet (7).
  6. Buse pour sprinkler selon l'une ou plusieurs des revendications 1 à 5, caractérisée en ce qu'elle est fabriquée d'un seul bloc en laiton rouge, le canal (1) étant, notamment, également coulé de manière simultanée.
  7. Buse pour sprinkler selon l'une des revendications 1-6, caractérisée en ce que l'élément brise-jet (7) a une forme conique et en ce que le cône de support (9) est élargi par rapport à l'élément brise-jet (7), sous celui-ci, grâce à un gradin (18).
  8. Buse pour sprinkler selon l'une des revendications 1-7, caractérisée en ce que le rayon de l'élément en étoile (8) est à peu près trois fois plus grand que la distance entre le bord supérieur de l'élément brise-jet (7) et la surface (14) de l'élément en étoile.
  9. Buse pour sprinkler selon l'une des revendications 4-8, caractérisée en ce qu'une fente (10) sur deux est prolongée jusqu'au cône de support (9).
EP95920055A 1994-05-18 1995-05-17 Buse pour sprinkler Expired - Lifetime EP0759794B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4417314A DE4417314C2 (de) 1994-05-18 1994-05-18 Sprinklerdüse
DE4417314 1994-05-18
PCT/EP1995/001880 WO1995031253A1 (fr) 1994-05-18 1995-05-17 Buse pour sprinkler

Publications (2)

Publication Number Publication Date
EP0759794A1 EP0759794A1 (fr) 1997-03-05
EP0759794B1 true EP0759794B1 (fr) 1998-07-15

Family

ID=6518324

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95920055A Expired - Lifetime EP0759794B1 (fr) 1994-05-18 1995-05-17 Buse pour sprinkler

Country Status (11)

Country Link
US (1) US5762144A (fr)
EP (1) EP0759794B1 (fr)
JP (1) JP3544983B2 (fr)
CN (1) CN1072516C (fr)
AT (1) ATE168279T1 (fr)
AU (1) AU688050B2 (fr)
CA (1) CA2189118A1 (fr)
DE (2) DE4417314C2 (fr)
DK (1) DK0759794T3 (fr)
ES (1) ES2121388T3 (fr)
WO (1) WO1995031253A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7343980B2 (en) 2006-05-04 2008-03-18 The Reliable Automatic Sprinkler Co., Inc. Enhanced protection extended coverage pendent fire protection sprinkler
US7624812B2 (en) 2006-04-20 2009-12-01 The Reliable Automatic Sprinkler Co. Extended coverage, storage, automatic fire protection sprinkler
US10532236B2 (en) 2008-02-13 2020-01-14 The Reliable Automatic Sprinkler Co., Inc. Method of fire protection for storage occupancies utilizing a plurality of pendent control mode specific application extended coverage fire protection sprinklers

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19539991C1 (de) * 1995-10-27 1997-02-27 Preussag Ag Minimax Schaumwassersprinkler
DE19711348C1 (de) * 1997-03-18 1998-08-13 Werner Lueddecke Sprinklerdüsen aus Bronze sowie diese enthaltende Sprinkleranlagen
US6516893B2 (en) * 2001-06-05 2003-02-11 The Reliable Automatic Sprinkler Co.,Inc. Residential sprinkler arrangement
US7055675B2 (en) * 2002-12-04 2006-06-06 3M Innovative Properties Company Conveyor belt cleaning system
US20050110702A1 (en) * 2003-11-21 2005-05-26 Aoki Paul M. Collapsible display device and methods for using the same
CN101808696A (zh) * 2008-06-16 2010-08-18 雅玛多-普罗泰克株式会社 灭火用喷雾喷嘴及灭火设备
WO2009153847A1 (fr) * 2008-06-16 2009-12-23 ヤマトプロテック株式会社 Buse de pulverisation pour extinction d’incendie et equipement extincteur
CN101905197B (zh) * 2010-07-02 2012-02-29 太原理工大学 一种防滴漏兼可节流式喷嘴装置及其使用方法
CN104492007B (zh) * 2014-11-27 2018-01-02 公安部天津消防研究所 一种压缩空气泡沫喷淋施放方法及喷头
USD825715S1 (en) * 2017-08-08 2018-08-14 Victaulic Company Sprinkler and coupling

Family Cites Families (12)

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Publication number Priority date Publication date Assignee Title
DE163012C (fr) *
US2085987A (en) * 1935-03-27 1937-07-06 Gen Fire Extinguisher Co Method of assembling an automatic sprinkler
US2378273A (en) * 1943-02-04 1945-06-12 Warren F Wilhelm Fluid distributing mechanism
US2528063A (en) * 1948-06-09 1950-10-31 Grinnell Corp Automatic sprinkler
US2768696A (en) * 1953-05-01 1956-10-30 Grinnell Corp Sprinkler systems
US3561537A (en) * 1968-06-20 1971-02-09 Fire Protection Co Automatic sprinkler head
US3716103A (en) * 1970-07-10 1973-02-13 Senju Metal Industry Co Sprinkler head
US3918645A (en) * 1974-07-10 1975-11-11 Jomos Sprinkler Material Ag Sprinkler valves
DE2539703C2 (de) * 1975-09-06 1982-07-29 Eduard J. Ing.(grad.) 2070 Ahrensberg Job Feuerlöschbrausekopf für selbsttätige Feuerlöschanlagen
DE3225798A1 (de) * 1982-07-09 1984-01-12 Preussag AG Bauwesen, 3005 Hemmingen Loeschbrause
GB8729248D0 (en) * 1987-12-15 1988-01-27 Spraysafe Automatic Sprinklers Fire extinguishing sprinkler head
DE9215957U1 (de) * 1992-11-24 1993-01-21 Basf Ag, 6700 Ludwigshafen Sprinkler

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7624812B2 (en) 2006-04-20 2009-12-01 The Reliable Automatic Sprinkler Co. Extended coverage, storage, automatic fire protection sprinkler
US7343980B2 (en) 2006-05-04 2008-03-18 The Reliable Automatic Sprinkler Co., Inc. Enhanced protection extended coverage pendent fire protection sprinkler
US10532236B2 (en) 2008-02-13 2020-01-14 The Reliable Automatic Sprinkler Co., Inc. Method of fire protection for storage occupancies utilizing a plurality of pendent control mode specific application extended coverage fire protection sprinklers

Also Published As

Publication number Publication date
AU2565195A (en) 1995-12-05
ATE168279T1 (de) 1998-08-15
WO1995031253A1 (fr) 1995-11-23
DE59502838D1 (de) 1998-08-20
EP0759794A1 (fr) 1997-03-05
JPH11514244A (ja) 1999-12-07
JP3544983B2 (ja) 2004-07-21
DK0759794T3 (da) 1999-04-19
ES2121388T3 (es) 1998-11-16
US5762144A (en) 1998-06-09
CN1072516C (zh) 2001-10-10
CN1148348A (zh) 1997-04-23
DE4417314C2 (de) 1998-11-12
CA2189118A1 (fr) 1995-11-23
DE4417314A1 (de) 1995-11-23
AU688050B2 (en) 1998-03-05

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