EP0972574A1 - Flüssigkeits-Zerstäuber - Google Patents

Flüssigkeits-Zerstäuber Download PDF

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Publication number
EP0972574A1
EP0972574A1 EP99401750A EP99401750A EP0972574A1 EP 0972574 A1 EP0972574 A1 EP 0972574A1 EP 99401750 A EP99401750 A EP 99401750A EP 99401750 A EP99401750 A EP 99401750A EP 0972574 A1 EP0972574 A1 EP 0972574A1
Authority
EP
European Patent Office
Prior art keywords
nozzle
diffusers
conical
head
sleeve
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
EP99401750A
Other languages
English (en)
French (fr)
Other versions
EP0972574B1 (de
Inventor
Droncuta Pavelut Greucean
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.)
Chubb France SCS
Original Assignee
Atse 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 Atse SA filed Critical Atse SA
Publication of EP0972574A1 publication Critical patent/EP0972574A1/de
Application granted granted Critical
Publication of EP0972574B1 publication Critical patent/EP0972574B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
    • 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
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/34—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl
    • B05B1/3405—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl
    • B05B1/341—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet
    • B05B1/3421—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber
    • B05B1/3431—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber the channels being formed at the interface of cooperating elements, e.g. by means of grooves
    • B05B1/3442—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl to produce swirl before discharging the liquid or other fluent material, e.g. in a swirl chamber upstream the spray outlet with channels emerging substantially tangentially in the swirl chamber the channels being formed at the interface of cooperating elements, e.g. by means of grooves the interface being a cone having the same axis as the outlet

Definitions

  • the invention relates to a nozzle for spraying liquids, in particular for the fire protection.
  • each fire risk recommends a suitable system for the shape and nature of the spray mist.
  • the present invention relates to a spray nozzle which has a head provided with a liquid inlet and at least one orifice forming a housing in which is arranged a diffuser, and more particularly a nozzle with several diffusers to generate a full cone water mist formed by a sum of cones hollow.
  • a spray nozzle which has a head provided with a liquid inlet and at least one orifice forming a housing in which is arranged a diffuser, and more particularly a nozzle with several diffusers to generate a full cone water mist formed by a sum of cones hollow.
  • a nozzle according to the invention is particularly remarkable in that the conical part of the diffuser has three grooves conical helicals whose ends at the base of the part communicate directly inside thereof by a separate orifice, said ends and therefore said orifices being offset angularly two by two by an angle substantially of 120 °, while the other ends of the grooves reach the immediate vicinity from the top of said piece after development over substantially one revolution for form a common inlet opposite the spray orifice of the sleeve.
  • the housing of the nozzle intended for the diffuser has a thread inside intended to cooperate by screwing with a conjugated external thread fitted on the diffuser sleeve, while the conical part of the diffuser is provided at its base with an external thread intended to cooperate by screwing with a thread interior conjugate provided at the base of the sleeve.
  • the conical part of the diffuser is not not completely inserted into the housing formed by the interior volume of the sleeve, thus creating a space between said conical piece and the inner wall of the sleeve by which the helical channels can communicate with each other.
  • This is, by example, obtained by partial tightening of the conical part in the sleeve, or by a particular form of said part.
  • the nozzle head is generally provided with several housings and in this case an embodiment according to the invention is remarkable in that on the one hand, the angles at the top of the conical pieces and the sleeves of the diffusers and, on the other hand, the diameters of the spray orifices depend on the locations of the diffusers on the head of the nozzle depending on the desired effect.
  • the head of the nozzle has substantially the shape of a pear, the or the housings for the diffusers being provided on its swollen part while preferably the diffusers have larger spray orifice diameters bigger and smaller and smaller angles at the top as their locations approach the larger diameter area of the head of the nozzle.
  • the head of the nozzle has substantially a circular arc shape
  • the housings for the diffusers being arranged in an arc of circle, their axes being substantially coplanar along a plane passing through the axis of the arrival of the liquid.
  • the nozzle head has a cylindrical part coaxial with the axis of the liquid inlet, the housings for the diffusers being provided on this cylindrical part, their axes being substantially coplanar according to a plane substantially perpendicular to said axis of the arrival of the liquid or also said head may have a flat part substantially perpendicular to the axis of the inlet liquid, the housings for the diffusers being arranged obliquely by opening in this flat part.
  • the nozzle according to the invention shown in Figures 1 to 3 essentially comprises a partially hollow head 1 which is provided with: an opening constituting a liquid inlet 2, and several orifices forming housings 3 ( Figures 2 and 3) for diffusers 4.
  • Each diffuser 4 consists of a sleeve 5 ( Figures 6 to 8) in which is housed a conical part 6 partially hollow ( Figures 4 and 5).
  • the sleeve 5 of the diffuser defines an interior volume 7 in the form of a cone circular provided at its top with an orifice 8, as shown in FIGS. 6 to 8, while it is provided with an external thread 9 and an internal thread 10 arranged at the base of said conical volume 7, the external thread 9 being provided to cooperate with a corresponding internal thread provided in the housings 3, as shown Figures 2 and 3.
  • the conical part 6 of Figures 4 and 5 has a corresponding angle at the top to that of the conical volume 7 of the sleeve 5 and an external thread 11 at its base, conjugate of the internal thread 10 of said sleeve.
  • part 6 can be housed and screwed into the sleeve 5 by cooperation of the threads 10 and 11 respectively of the parts, as this is shown more particularly in FIG. 8, this operation being facilitated by the use of a tool engaged with the groove 12 of the part 6, visible in FIG. 4.
  • said sleeves 5 here include holes such as 13 ( Figure 7) for the use of an appropriate tool.
  • Part 6 ( Figure 4) also has three conical helical grooves 14a, 14b, 14c which extend, as well shown in Figure 4, from the base of said part 6, each communicating with the interior thereof through an orifice 15a, 15b, 15c, up to the immediate vicinity of the apex S (FIG. 5), of said part, opposite of the sleeve spray port 8 if we consider the assembled parts as shown in figure 8.
  • the top S of the part 6 thus constitutes a joint arrival of the three grooves helical.
  • the starting ends of the grooves 14a to 14c and therefore the orifices 15a to 15c are angularly offset two by two by an angle of substantially 120 ° C, to be regularly distributed while said grooves reach the top S of the part after a development on substantially a lap.
  • the liquid then passes into the hollow conical part 6 and the liquid follows the three helical channels formed by the grooves 14a to 14c to exit through the orifice 8 in forming a fog in a hollow cone, the plurality of diffusers forming a fog in full cone.
  • part 6 may not be screwed completely in the sleeve 5 so that a space is then created between said part 6 and the inner wall of said sleeve 5 through which the helical channels can communicate with each other, as shown in Figure 8 where a space E is shown diagrammatically with broken lines.
  • this space makes it possible to vary the degree of filling the hollow cone with the liquid mist generated by the diffuser as well as the ejection distance of said mist.
  • the invention also provides an embodiment in which the space E mentioned above can be created while the part 6 is fully screwed in the sleeve 5 and it suffices for this that the circular part of the part 6 located between its thread 11 and its conical part is a little shorter than the part corresponding circular of the sleeve 5 located between its thread 10 and its conical part.
  • the head 1 of the nozzle has substantially the shape of a pear, the diffusers being distributed on the swollen part of it.
  • the central diffuser will generate the finest droplets with the greatest angle of dispersion while the diffusers of figure 2 go generate medium-sized droplets in a 75 ° dispersion cone, while that the diffusers of figure 3 will generate the largest droplets, which are going to be projected the farthest.
  • FIGS. 9 to 15 heads of different shapes are shown and we have kept the same references, except for the reference of the head itself numbered respectively 1 'or 1 "or 1"'.
  • the head 1 ′ shown which relates for example to more particularly a pit nozzle, has a circular arc shape 16, the axes of the diffusers 4 being substantially coplanar along a plane passing through the axis of the liquid inlet 2, which spreads the liquid mist according to here five main coplanar directions like the five fingers spread with one hand.
  • the diffusers here have an angle at the top of 60 ° but we can also use other diffusers and in particular 20 ° diffusers.
  • Figures 12, 13 and 14, 15 show two other possible embodiments, for example for gutters ( Figures 12 and 13) and for false respectively floors or false ceilings ( Figures 14 and 15).
  • the head 1 "of FIGS. 12 and 13 has a cylindrical part 17 coaxial with the axis of the liquid inlet 2 while the housings 3 of the diffusers 4 are provided on said cylindrical part 17, their axes being substantially coplanar according to a plane substantially perpendicular to said axis of the inlet 2 of the liquid.
  • the diffusers have an angle here of 20 °.
  • Such a nozzle allows spraying lateral, for example for large areas and low heights.
  • the head 1 "'of Figures 14 and 15 on the contrary has a flat part 18 substantially perpendicular to the axis of the liquid inlet 2 and in which are arranged at an angle and open the housings 3 of the diffusers 4, said diffusers 4 having for example an angle of 20 °, so as to constitute a nozzle more especially intended for long lengths and small sections.

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Nozzles (AREA)
  • Catching Or Destruction (AREA)
  • Particle Formation And Scattering Control In Inkjet Printers (AREA)
  • Manufacturing Of Micro-Capsules (AREA)
EP99401750A 1998-07-15 1999-07-12 Flüssigkeits-Zerstäuber Expired - Lifetime EP0972574B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9809030A FR2781697B1 (fr) 1998-07-15 1998-07-15 Buse de pulverisation de liquides
FR9809030 1998-07-15

Publications (2)

Publication Number Publication Date
EP0972574A1 true EP0972574A1 (de) 2000-01-19
EP0972574B1 EP0972574B1 (de) 2003-12-10

Family

ID=9528631

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99401750A Expired - Lifetime EP0972574B1 (de) 1998-07-15 1999-07-12 Flüssigkeits-Zerstäuber

Country Status (6)

Country Link
EP (1) EP0972574B1 (de)
AT (1) ATE255958T1 (de)
DE (1) DE69913442T2 (de)
DK (1) DK0972574T3 (de)
ES (1) ES2212494T3 (de)
FR (1) FR2781697B1 (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1413333A1 (de) * 2002-10-25 2004-04-28 Ciodue Acqua S.R.L. Sprinklerkopf für Feuerbekämpfungssysteme
DE102004014780A1 (de) * 2004-03-26 2005-10-13 Anton Neumeir Fettbrandlöschgerät
CN102091678A (zh) * 2010-12-21 2011-06-15 常州力马干燥工程有限公司 气流式雾化器
WO2012141595A1 (en) * 2011-04-12 2012-10-18 Prevent Systems As A fire-fighting extinguisher nozzle; a method for fabricating such nozzle, and a method for producing a spray of fine-droplet mist
DE102011102693A1 (de) * 2011-05-20 2012-11-22 Fogtec Brandschutz Gmbh & Co. Kg Löschdüsenkopf mit strömungskanal
CN110064153A (zh) * 2019-05-23 2019-07-30 高邮摩世勒公共安全设备有限公司 一种超宽压细水雾喷头

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20108549U1 (de) * 2001-05-22 2001-10-31 Systemtechnik Herzog Gmbh Radial-Sprühkopf
CN203647928U (zh) * 2013-11-29 2014-06-18 上海金盾消防安全科技有限公司 直喷雾化喷嘴和旋流雾化喷嘴组合的细水雾喷头

Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE301230C (de) *
FR461464A (fr) 1912-08-19 1913-12-30 Paul Lechler Buse de pulvérisation
GB180387A (en) 1921-01-26 1922-05-26 William Harry Sayer Improved apparatus for cleansing and sterilising vessels
FR639530A (fr) 1927-08-11 1928-06-23 Appareil d'arrosage
FR736088A (fr) * 1932-04-28 1932-11-18 Jet de pulvérisateur
US2098487A (en) 1936-10-12 1937-11-09 Elias Rogers Co Ltd Spray nozzle
DE873170C (de) * 1949-10-13 1953-04-13 Herwarth Brake Duese zum Bespruehen von Flaechen und Raumteilen
US2761737A (en) * 1953-06-23 1956-09-04 Stop Fire Inc Nozzles for fire extinguishers
DE2625496A1 (de) * 1976-06-05 1977-12-22 Duda Beregnungseinrichtung, insbesondere sprenger
DE3440901A1 (de) * 1983-12-30 1985-07-11 VEB Metalleichtbaukombinat, DDR 7030 Leipzig Anordnung zur feinzerstaeubung von fluessigkeiten
US4598870A (en) * 1983-08-25 1986-07-08 Weitmann & Konrad Gmbh & Co. Kg Device for the powder-dusting of moving objects, particularly flat substrates
EP0389014A1 (de) * 1989-03-20 1990-09-26 Recticel Zerstäubungsdüse für eine Zerstäubungspistole zur Erzeugung einer Polyurethanschicht auf einer Fläche
FR2652517A1 (fr) * 1989-10-03 1991-04-05 Marois Gilles Dispositif de nebulisation de fluide pour douche.
WO1992020453A1 (en) * 1991-05-20 1992-11-26 Sundholm Goeran Fire fighting equipment
DE29623240U1 (de) * 1995-04-22 1998-01-15 Kamat Pumpen Gmbh & Co Kg Transportable Löschpistole
WO1998004322A1 (en) * 1996-07-26 1998-02-05 The Reliable Automatic Sprinkler Co., Inc. Fire suppression mist nozzle arrangement

Patent Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE301230C (de) *
FR461464A (fr) 1912-08-19 1913-12-30 Paul Lechler Buse de pulvérisation
GB180387A (en) 1921-01-26 1922-05-26 William Harry Sayer Improved apparatus for cleansing and sterilising vessels
FR639530A (fr) 1927-08-11 1928-06-23 Appareil d'arrosage
FR736088A (fr) * 1932-04-28 1932-11-18 Jet de pulvérisateur
US2098487A (en) 1936-10-12 1937-11-09 Elias Rogers Co Ltd Spray nozzle
DE873170C (de) * 1949-10-13 1953-04-13 Herwarth Brake Duese zum Bespruehen von Flaechen und Raumteilen
US2761737A (en) * 1953-06-23 1956-09-04 Stop Fire Inc Nozzles for fire extinguishers
DE2625496A1 (de) * 1976-06-05 1977-12-22 Duda Beregnungseinrichtung, insbesondere sprenger
US4598870A (en) * 1983-08-25 1986-07-08 Weitmann & Konrad Gmbh & Co. Kg Device for the powder-dusting of moving objects, particularly flat substrates
DE3440901A1 (de) * 1983-12-30 1985-07-11 VEB Metalleichtbaukombinat, DDR 7030 Leipzig Anordnung zur feinzerstaeubung von fluessigkeiten
EP0389014A1 (de) * 1989-03-20 1990-09-26 Recticel Zerstäubungsdüse für eine Zerstäubungspistole zur Erzeugung einer Polyurethanschicht auf einer Fläche
FR2652517A1 (fr) * 1989-10-03 1991-04-05 Marois Gilles Dispositif de nebulisation de fluide pour douche.
WO1992020453A1 (en) * 1991-05-20 1992-11-26 Sundholm Goeran Fire fighting equipment
DE29623240U1 (de) * 1995-04-22 1998-01-15 Kamat Pumpen Gmbh & Co Kg Transportable Löschpistole
WO1998004322A1 (en) * 1996-07-26 1998-02-05 The Reliable Automatic Sprinkler Co., Inc. Fire suppression mist nozzle arrangement

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1413333A1 (de) * 2002-10-25 2004-04-28 Ciodue Acqua S.R.L. Sprinklerkopf für Feuerbekämpfungssysteme
DE102004014780A1 (de) * 2004-03-26 2005-10-13 Anton Neumeir Fettbrandlöschgerät
CN102091678A (zh) * 2010-12-21 2011-06-15 常州力马干燥工程有限公司 气流式雾化器
CN102091678B (zh) * 2010-12-21 2012-11-14 常州力马干燥工程有限公司 气流式雾化器
WO2012141595A1 (en) * 2011-04-12 2012-10-18 Prevent Systems As A fire-fighting extinguisher nozzle; a method for fabricating such nozzle, and a method for producing a spray of fine-droplet mist
US9327151B2 (en) 2011-04-12 2016-05-03 Prevent Systems As Fire-fighting extinguisher nozzle; a method for fabricating such nozzle, and a method for producing a spray of fine-droplet mist
DE102011102693A1 (de) * 2011-05-20 2012-11-22 Fogtec Brandschutz Gmbh & Co. Kg Löschdüsenkopf mit strömungskanal
DE102011102693B4 (de) * 2011-05-20 2017-05-04 Fogtec Brandschutz Gmbh & Co. Kg Löschdüsenkopf mit Strömungskanal
CN110064153A (zh) * 2019-05-23 2019-07-30 高邮摩世勒公共安全设备有限公司 一种超宽压细水雾喷头

Also Published As

Publication number Publication date
FR2781697B1 (fr) 2001-08-31
DK0972574T3 (da) 2004-04-05
DE69913442D1 (de) 2004-01-22
DE69913442T2 (de) 2004-05-27
ATE255958T1 (de) 2003-12-15
FR2781697A1 (fr) 2000-02-04
EP0972574B1 (de) 2003-12-10
ES2212494T3 (es) 2004-07-16

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