EP0671217B1 - Spray nozzle for generating a spray mist - Google Patents
Spray nozzle for generating a spray mist Download PDFInfo
- Publication number
- EP0671217B1 EP0671217B1 EP94119909A EP94119909A EP0671217B1 EP 0671217 B1 EP0671217 B1 EP 0671217B1 EP 94119909 A EP94119909 A EP 94119909A EP 94119909 A EP94119909 A EP 94119909A EP 0671217 B1 EP0671217 B1 EP 0671217B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- spray
- housing
- spray nozzle
- nozzle
- nozzle orifice
- 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
Links
- 239000007921 spray Substances 0.000 title claims abstract description 49
- 239000003595 mist Substances 0.000 title claims description 6
- 238000002156 mixing Methods 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 11
- 239000007788 liquid Substances 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000009826 distribution Methods 0.000 description 4
- 230000006641 stabilisation Effects 0.000 description 3
- 238000011105 stabilization Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000000567 combustion gas Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000007788 roughening Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Images
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
-
- 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
Definitions
- the invention relates to a spray nozzle for generating spray in Low pressure process, especially for firefighting with stationary Water mist fire extinguishing systems, the radially in a pipeline of the Fire extinguishing system built-in spray nozzle from a housing with a built-in, a swirl mixing chamber forming flow body, which with a pin-shaped end is assigned to a nozzle opening.
- Such nozzles are used for spraying liquids the liquid distribution a uniform spray pattern, especially in Fire extinguishing systems, the aim is.
- DD 116 398 such a Nozzle described, which consists of a hollow nozzle body and a nozzle insert with an outer Twist groove exists. These nozzles essentially spray an annulus. The area only a small amount of spray is applied within the ring. That means that when released of the water flow from the nozzle through the formation of internal vortices in the spray cone sets a hollow cone.
- Another disadvantage with the older spray nozzle is that seen that the proposed swirl channels tend to clog and also the Swirl body causes high processing times in the manufacture.
- the invention has for its object to provide a spray nozzle with which Disadvantages of the older spray nozzle can be avoided and with a spray cone as Full cone is generated with a more intense internal vortex formation.
- a full cone forms with the spray nozzle according to the invention, the Spray nozzle with regard to the liquid distribution a uniform and stable spray pattern generated over a circular area.
- the spray nozzle can be used in a spray water fire extinguishing system usual pressure range can be used.
- the spray nozzle has one large and intensive spray effect in the horizontal and radial direction, with a good one Enclosure and deep effect. This is an application in the supply air flow and possible in the gravity application of water to the source of the fire.
- the configuration of the spray nozzle with an outwardly directed Flow body spigot at the nozzle outlet leads to an extremely stable and clean Spray cone through additional stabilization and bundling of the water flow.
- the constructive design of the spray nozzle according to the invention leads to a low Clogging tendency due to larger nozzle exit and entry areas.
- a spray nozzle 1 is installed radially in a tube 2.
- the spray nozzle 1 consists of a housing 3 with a cylindrical inner bore 10 into which a flow body 4 is installed.
- a flow body 4 When the liquid in the pipe 2 is pressurized, e.g. Water, it flows through holes 14 in the housing 3 tangentially and radially are inclined in a swirl mixing chamber 8.
- the flow body 4 consists of a conical part 6 and a cylindrical pin 7 with a cylindrical Nozzle opening 9 forms an annular gap 15. The from the holes 14 with a twist and turbulent water flow entering the swirl mixing chamber 8 flows around the conical part 6 of the flow body 4.
- the flow body 4 is made in the upper part a cylindrical part 5 formed with an external thread 12, which is in an internal thread 13 of the cylindrical bore 10 of the housing 3 is screwed.
- Flow bodies 4 arranged in installation form become through the bores 14 entering turbulent water jets with different tangential and axial speed components stabilized in the swirl mixing chamber 8 and via a conical bore 11 in the region of the smallest diameter 16 of the conical part 6 accelerates.
- the water flow emerges from the annular gap 15 over a short distance as a bundled, twisted and pressure-increased jet. In the annular gap 15 further stabilization and concentration of the jet emerging from the nozzle causes. After this distance, a spray cone is formed in which forms a vortex zone within the spray cone jacket.
- the droplet jet released by the nozzle is characterized by a Large drops and a fine drop portion, the fine drop portion predominating. Of the Large drop portion serves as a carrier medium for the fine drops through the training of drag vertebrae.
- the spray cone generated with the spray nozzle 1 according to the invention is extremely stable from the operating pressure of the nozzle, even if the pre-pressure, i.e. of the Pressure in pipeline 2 fluctuates.
- the spray angle of the exiting spray can be adjusted by adjusting the flow geometry between 60 ° and Be 140 °.
- the formation of the annular gap 15 at the nozzle outlet avoids one Hollow cone of the spray mist and instability of the spray cone at the nozzle outlet.
- an inward vortex formation of the spray after leaving the by the Pin 7 formed stabilization section a stable full cone is guaranteed.
- the bores 14 are tangential at an angle ⁇ between 15 ° and 45 °, preferably 30 ° and 40 ° and radially at an angle ⁇ between 5 ° and 40 °, preferably inclined between 10 ° and 20 °.
- the lower surface of the pin 7 can be connected to the outer edge of the nozzle opening 9 complete or protrude beyond the housing 3. With this measure it is achieved that the spray cone does not tear off at the outer edge of the nozzle opening 9.
- the liquid film is supposed to continue be grated. This can be done in that the surfaces of the conical part 6 and the pin 7 and the surfaces of the bores 10 and 11 and the nozzle opening 9 can be roughened. Roughening can be carried out in the usual way.
- the spray nozzle according to the invention is not only in stationary water mist fire extinguishing systems applicable. It can also be used for precipitation and washout toxic smoke and combustion gases and for binding and the suppression of dusts be used.
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)
- Reciprocating Pumps (AREA)
Abstract
Description
Die Erfindung betrifft eine Sprühdüse zur Erzeugung von Sprühnebeln im Niederdruckverfahren, insbesondere für die Brandbekämpfung mit stationären Wassernebel-Feuerlöschanlagen, wobei die radial in eine Rohrleitung der Feuerlöschanlage eingebaute Sprühdüse aus einem Gehäuse mit einem darin eingebauten, eine Drallmischkammer bildenden Strömungskörper besteht, der mit einem zapfenförmigen Ende einer Düsenöffnung zugeordnet ist.The invention relates to a spray nozzle for generating spray in Low pressure process, especially for firefighting with stationary Water mist fire extinguishing systems, the radially in a pipeline of the Fire extinguishing system built-in spray nozzle from a housing with a built-in, a swirl mixing chamber forming flow body, which with a pin-shaped end is assigned to a nozzle opening.
Derartige Düsen werden zum Versprühen von Flüssigkeiten verwendet, wobei bezüglich der Flüssigkeitsverteilung ein gleichmäßiges Sprühbild, insbesondere in Feuerlöschanlagen, angestrebt wird. In der Patentschrift DD 116 398 wird eine solche Düse beschrieben, die aus einem Düsenhohlkörper und einem Düseneinsatz mit äußerer Drallnut besteht. Diese Düsen besprühen im wesentlichen einen Kreisring. Die Fläche innerhalb des Kreisringes wird nur gering besprüht. Das heißt, daß sich bei Freisetzung des Wasserstromes aus der Düse durch die Ausbildung von Innenwirbeln im Sprühkegel ein Hohlkegel einstellt. Ein weiterer Nachteil bei der älteren Sprühdüse wird darin gesehen, daß die vorgesehenen Drallkanäle zu Verstopfungen neigen und außerdem der Drallkörper bei der Herstellung hohe Bearbeitungszeiten verursacht.Such nozzles are used for spraying liquids the liquid distribution a uniform spray pattern, especially in Fire extinguishing systems, the aim is. In the patent specification DD 116 398 such a Nozzle described, which consists of a hollow nozzle body and a nozzle insert with an outer Twist groove exists. These nozzles essentially spray an annulus. The area only a small amount of spray is applied within the ring. That means that when released of the water flow from the nozzle through the formation of internal vortices in the spray cone sets a hollow cone. Another disadvantage with the older spray nozzle is that seen that the proposed swirl channels tend to clog and also the Swirl body causes high processing times in the manufacture.
Der Erfindung liegt die Aufgabe zugrunde eine Sprühdüse zu schaffen, mit der die Nachteile der älteren Sprühdüse vermieden werden und mit der ein Sprühkegel als Vollkegel mit einer intensiveren Innenwirbelbildung erzeugt wird.The invention has for its object to provide a spray nozzle with which Disadvantages of the older spray nozzle can be avoided and with a spray cone as Full cone is generated with a more intense internal vortex formation.
Diese Aufgabe wird dadurch gelöst, daß der Strömungskörper an dem der Düsenöffnung entgegensetzten Ende dicht in einer Bohrung des Gehäuses sitzt und zur Düsenöffnung hin mit einem konischen Teil versehen ist, an das sich ein zylindrischer Zapfen anschließt, der in der Düsenöffnung einen Ringspalt bildet, und daß das Gehäuse mit ein oder mehreren tangential und radial geneigten Bohrungen versehen ist, die in der sich zur Düsenöffnung hin im Querschnitt zunächst erweiternden und dann verengenden Drallmischkammer enden.This object is achieved in that the flow body at that of the nozzle opening opposite end sits tightly in a bore of the housing and to the nozzle opening is provided with a conical part, which is followed by a cylindrical pin, which forms an annular gap in the nozzle opening, and that the housing with one or several tangentially and radially inclined holes is provided, which in the The cross-section of the nozzle opening is initially widening and then narrowing Swirl mixing chamber ends.
Mit der erfindungsgemäßen Sprühdüse bildet sich ein Vollkegel aus, wobei die Sprühdüse bezüglich der Flüssigkeitsverteilung ein gleichmäßiges und stabiles Sprühbild über eine Kreisfläche erzeugt. Damit kann die Sprühdüse in einem für Sprühwasser-Feuerlöschanlagen üblichen Druckbereich eingesetzt werden. Die Sprühdüse besitzt eine große und intensive Sprühwirkung in horizontaler und radialer Richtung, bei einem guten Einhausungs- und Tiefenwirkungseffekt. Damit ist eine Anwendung im Zuluftstrom und in der Schwerkraftaufbringung des Wassers zum Brandherd möglich.A full cone forms with the spray nozzle according to the invention, the Spray nozzle with regard to the liquid distribution a uniform and stable spray pattern generated over a circular area. This means that the spray nozzle can be used in a spray water fire extinguishing system usual pressure range can be used. The spray nozzle has one large and intensive spray effect in the horizontal and radial direction, with a good one Enclosure and deep effect. This is an application in the supply air flow and possible in the gravity application of water to the source of the fire.
Die Ausgestaltung der Sprühdüse mit einem nach außen geführten Strömungskörperzapfen am Düsenaustritt, führt zu einem äußerst stabilen und sauberen Sprühkegel durch eine zusätzliche Stabilisierung und Bündelung des Wasserstromes. Die konstruktive Ausgestaltung der erfindungsgemäßen Sprühdüse führt zu einer geringen Verstopfungsneigung durch größere Düsenaustritts- und Eintrittsflächen.The configuration of the spray nozzle with an outwardly directed Flow body spigot at the nozzle outlet leads to an extremely stable and clean Spray cone through additional stabilization and bundling of the water flow. The constructive design of the spray nozzle according to the invention leads to a low Clogging tendency due to larger nozzle exit and entry areas.
Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt und wird nachfolgend näher beschrieben. Weiterhin wird die Wirkungsweise der Erfindung aufgezeigt und dabei auf weitere erfinderische Merkmale eingegangen. An embodiment of the invention is shown in the drawing and will described in more detail below. Furthermore, the operation of the invention shown and dealt with further inventive features.
Es zeigt:
Eine Sprühdüse 1 ist in einem Rohr 2 radial eingebaut. Die Sprühdüse 1 besteht aus
einem Gehäuse 3 mit einer zylindrischen Innenbohrung 10, in die ein Strömungskörper 4
eingebaut ist. Bei einer Druckbeaufschlagung der sich im Rohr 2 befindlichen Flüssigkeit,
z.B. Wasser, fließt es durch Bohrungen 14, die im Gehäuse 3 tangential und radial
geneigt angebracht sind in eine Drallmischkammer 8. Der Strömungskörper 4 besteht aus
einem konischen Teil 6 und einem zylindrischen Zapfen 7, der mit einer zylindrischen
Düsenöffnung 9 einen Ringspalt 15 bildet. Der aus den Bohrungen 14 mit einem Drall
und turbulent in die Drallmischkammer 8 eintretende Wasserstrom umströmt den
konischen Teil 6 des Strömungskörpers 4. Der Strömungskörper 4 ist im oberen Teil aus
einem zylindrischen Teil 5 mit einem Außengewinde 12 gebildet, das in ein Innengewinde
13 der zylindrischen Bohrung 10 des Gehäuses 3 eingeschraubt ist. Durch den in axialer
Einbauweise angeordneten Strömungskörper 4 werden die durch die Bohrungen 14
eintretenden turbulenten Wasserstrahlen mit unterschiedlicher tangential-und
axial-Geschwindigkeitskomponenten
in der Drallmischkammer 8 stabilisiert und über eine
konische Bohrung 11 im Bereich des kleinsten Durchmessers 16 des konischen Teils 6
beschleunigt. Der Wasserstrom tritt aus dem Ringspalt 15 über eine kurze Wegstrecke
als gebündelter, gedrallter und im Druck erhöhter Strahl aus. In dem Ringspalt 15 wird
eine weitere Stabilisierung und Bündelung des aus der Düse austretenden Strahles
bewirkt. Nach dieser Strecke kommt es zur Ausbildung eines Sprühkegels, in dem sich
innerhalb des Sprühkegelmantels eine Wirbelzone ausbildet. Aufgrund des Ringspaltes 15
ist der durch die Düse freigesetzte Tropfenstrahl charakterisiert durch einen
Großtropfen- und einen Feintropfenanteil, wobei der Feintropfenanteil überwiegt. Der
Großtropfenanteil dient als Trägermedium für die feinen Tropfen durch die Ausbildung
von Schleppwirbeln. Der mit der erfindungsgemäßen Sprühdüse 1 erzeugte Sprühkegel
ist ab dem Betriebsdruck der Düse äußerst stabil, auch wenn der Vordurck, d.h. der
Druck in der Rohrleitung 2, schwankt. Der Sprühwinkel des austretenden Sprühnebels
kann durch eine entsprechende Einstellung der Strömungsgeometrie zwischen 60 ° und
140 ° betragen. Dies wird dadurch erreicht, daß das Verhältnis des Querschnittes der
Bohrungen 14 zum größten Ringquerschnitt der Drallmischkammer 8 in einem Bereich
von 1 : 2 bis 1 : 10 liegt, und daß das Verhältnis des Querschnittes der Bohrungen 14
zum Querschnitt des Ringspaltes 15 im Bereich von 1 : 1,5 bis 1 : 5 liegt. Durch diese
Dimensionierung und funktionelle Abstimmung der Drallmischkammer 8 zu der
Düseneintrittsöffung (Querschnitt der Bohrungen 14) und der Düsenaustrittsfläche
(Ringspalt 15) kann der Strahlverlauf, die Flüssigkeitsverteilung und die
Tropfenverteilung beeinflußt werden. Die erfindungsgemäße Strömungsgeometrie
gewährleistet einen gleichmäßigen, stabilen und aus feinen Wassertropfen mit einem
Großtropfenanteil bestehenden Sprühnebel.A
Insbesondere die Ausbildung des Ringspaltes 15 am Düsenaustritt vermeidet einen
Hohlkegel des Sprühnebels und Instabilität des Sprühkegels am Düsenaustritt. Durch
eine nach innen gerichtete Wirbelbildung des Sprühnebels nach Verlassen der durch den
Zapfen 7 gebildeten Stabilisierungsstrecke, ist ein stabiler Vollkegel gewährleistet.In particular, the formation of the
Aufgrund der Einfachheit des Wirkprinzipes am Strömungseintritt der Düsen können
größere Tangentialbohrungen 14 bei niedriger Durchflußrate zur Anwendung gebracht
werden, weshalb die Verstopfungsneigung dieser Düsen erheblich minimiert ist.
Erfindungsgemäß sind die Bohrungen 14 tangential unter einem Winkel α zwischen 15 °
und 45 °, vorzugsweise 30 ° und 40 ° und radial unter einem Winkel β zwischen 5 ° und
40 °, vorzugsweise zwischen 10 ° und 20 ° geneigt angeordnet.Due to the simplicity of the principle of action at the flow inlet of the nozzles
larger
Der Zapfen 7 kann mit seiner unteren Fläche mit der äußeren Kante der Düsenöffnung 9
abschließen oder über das Gehäuse 3 hinausragen. Mit dieser Maßnahme wird erreicht,
daß der Sprühkegel nicht an der äußeren Kante der Düsenöffnung 9 abreißt. Um noch
feinere Tröpfchen innerhalb des Sprühkegles zu erzeugen, soll der Flüssigkeitsfilm weiter
zerrieben werden. Dies kann dadurch erfolgen, daß die Oberflächen des konischen Teiles
6 und des Zapfens 7 sowie die Flächen der Bohrungen 10 und 11 und der Düsenöffnung
9 aufgerauht werden. Eine Aufrauhung kann in üblicher Weise vorgenommen werden.The lower surface of the
Die erfindungsgemäße Sprühdüse ist nicht nur in stationären Wassernebel-Feuerlöschanlagen einsetzbar. Sie kann auch zur Niederschlagung und Auswaschung toxischer Rauch- und Brandgase und zum Binden und die Niederschlagung von Stäuben eingesetzt werden.The spray nozzle according to the invention is not only in stationary water mist fire extinguishing systems applicable. It can also be used for precipitation and washout toxic smoke and combustion gases and for binding and the suppression of dusts be used.
Claims (7)
- A spray nozzle for the generation of spray mists in the low-pressure method, particularly for fire fighting by means of stationary Water-mist fire-extinguishing equipment, wherein said spray nozzle, radially mounted in a pipe conduit (2) of said fire-extinguishing equipment, comprises a housing (3) accommodating therein a flow body (4) forming a spin mixing chamber and having a conical end associated with to a nozzle orifice (9), characterized in that said flow body (4) at the end opposite to said nozzle orifice (9) is closely seated in a bore (10) of said housing (3) and is provided towards the nozzle orifice (9) with a conical portion (6) joined by a cylindrical tap (7) forming an annular gap (15) in the nozzle orifice (9), and that said housing (3) is provided with one or a plurality of tangentially and radially inclined bores (14) terminating in said spin mixing chamber (8), with the cross section of the spin mixing chamber first widening and then narrowing towards said nozzle orifice (9).
- The spray nozzle according to claim 1, characterized in that said bore (10) of the housing is cylindrical and in the region of the smallest diameter (16) of said conical portion (6) enters a conical bore (11) tapering towards said nozzle orifice (9) and joined by this cylindrical nozzle orifice (9).
- The spray nozzle according to claims 1 and 2, characterized in that said the flow body (4) in its upper region comprises a cylindrical portion (5) with an outer thread (12) adapted to be screw-fitted into an inner thread (13) of said cylindrical bore (10) of the housing (3).
- The spray nozzle according to claim 1, characterized in that said inclined bores (14) are inclined tangentially at an angle α between 15° and 45°, preferably between 30° and 45°, and radially at an angle β between 5° and 40°, preferably between 10° and 20°.
- The spray nozzle according to any one of claims 1 to 4, characterized in that the ratio between the cross section of said inclined bores (14) and the largest annular cross section of said spin mixing chamber (8) is in the range from 1:2 to 1:10, and that the ratio between the cross section of said inclined bores (14) and the cross section of said annular gap (15) is in the range from 1:1.5 to 1:5.
- The spray nozzle according to claim 1, characterized in that said tap (7) has its lower end terminating with the outer edge of said nozzle orifice (9) or projecting beyond the housing (3).
- The spray nozzle according to any one of claims 1 to 6, characterized in that the surfaces of said conical portion (6) and of said tap (7) as well as the faces of said bores (10 and 11) and of said nozzle orifice (9) are roughened.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4407779A DE4407779C2 (en) | 1994-03-09 | 1994-03-09 | Spray nozzle for generating spray mists |
| DE4407779 | 1994-03-09 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0671217A2 EP0671217A2 (en) | 1995-09-13 |
| EP0671217A3 EP0671217A3 (en) | 1996-03-27 |
| EP0671217B1 true EP0671217B1 (en) | 1999-09-29 |
Family
ID=6512210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP94119909A Expired - Lifetime EP0671217B1 (en) | 1994-03-09 | 1994-12-16 | Spray nozzle for generating a spray mist |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0671217B1 (en) |
| AT (1) | ATE185092T1 (en) |
| DE (2) | DE4407779C2 (en) |
| FI (1) | FI108407B (en) |
| NO (1) | NO302866B1 (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19617685C2 (en) * | 1996-05-03 | 2002-11-07 | Deutsch Zentr Luft & Raumfahrt | Kegelstrahldralldüse |
| FR2802446B1 (en) * | 1999-12-16 | 2002-04-12 | Oreal | NOZZLE FOR AEROSOL CONTAINER |
| GB2418611B (en) * | 2002-11-28 | 2006-09-06 | Kidde Ip Holdings Ltd | Fire extinguishant discharge system and nozzle therefor |
| ATE427777T1 (en) | 2004-04-08 | 2009-04-15 | Kidde Ip Holdings Ltd | METHOD AND DEVICE FOR SPRAYING A FIRE EXTINGUISHING AGENT |
| DE102004040802A1 (en) * | 2004-08-23 | 2006-03-09 | Daimlerchrysler Ag | Atomizing device for testing vehicle contamination in wind tunnel, has spray nozzle with one unit for producing heterogeneous atomized spray including liquid drops with variable sizes |
| RU2419474C1 (en) * | 2010-05-21 | 2011-05-27 | Олег Савельевич Кочетов | Installation of modular fire-fighting equipment |
| RU2429035C1 (en) * | 2010-05-21 | 2011-09-20 | Олег Савельевич Кочетов | Method of modular fire extinguishing |
| RU2478409C1 (en) * | 2012-03-20 | 2013-04-10 | Олег Савельевич Кочетов | Method of modular fire extinguishing |
| CN104289333A (en) * | 2014-08-25 | 2015-01-21 | 洛阳帝博石化装备有限公司 | Catalytic cracking agent spray drying nozzle |
| JP6474162B2 (en) * | 2016-04-28 | 2019-02-27 | 株式会社ニフコ | Nozzle device |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE45748C (en) * | DREYER,ROSENKRANZ 8c DROOP in Hannover | Atomizer | ||
| GB191221703A (en) * | 1912-09-24 | 1913-09-24 | William Wright | An Improved Spraying or Sprinkling Device. |
| US1654381A (en) * | 1925-09-23 | 1927-12-27 | Monarch Mfg Works Inc | Spraying nozzle |
| FR669134A (en) * | 1929-02-04 | 1929-11-12 | Method and device for spraying liquids | |
| GB419541A (en) * | 1933-06-07 | 1934-11-14 | Jack William Allen | Improvements in or relating to spray jets and nozzles, more particularly for viscousliquids |
| DE920117C (en) * | 1942-07-12 | 1954-11-11 | Maschf Augsburg Nuernberg Ag | Nozzle for atomizing or distributing flowing media |
| DE1750676U (en) * | 1957-03-22 | 1957-08-14 | Schmitz & Co J | SPRAY PIPE, IN PARTICULAR FOR FIRE EXTINGUISHES |
| DE1750080A1 (en) * | 1968-03-28 | 1972-01-05 | Wiemers Hans Juergen | Nozzles for spraying and conveying materials |
| DD116398A1 (en) * | 1974-04-25 | 1975-11-20 | ||
| FR2339414A1 (en) * | 1976-01-27 | 1977-08-26 | Hydrovide | Combination nozzle for fire fighting hose - has outlet giving water jet and valve for changing over to alternative water spray outlet |
| CH625718A5 (en) * | 1977-10-06 | 1981-10-15 | Luwa Ag | Nozzle for ejecting liquid |
| GB2008981B (en) * | 1977-12-05 | 1982-03-31 | Clayton Heyes Eng Co Ltd | Water spray nozzles for use in coal mines |
| US4512520A (en) * | 1983-05-11 | 1985-04-23 | Steam Systems And Services, Incorporated | Dual element desuperheater apparatus |
| JPS62269767A (en) * | 1986-04-28 | 1987-11-24 | ウエスタン パツケ−ジング システムス リミテツド | Nozzle-assembly and method of discharging substance |
-
1994
- 1994-03-09 DE DE4407779A patent/DE4407779C2/en not_active Expired - Fee Related
- 1994-12-16 DE DE59408789T patent/DE59408789D1/en not_active Expired - Lifetime
- 1994-12-16 AT AT94119909T patent/ATE185092T1/en active
- 1994-12-16 EP EP94119909A patent/EP0671217B1/en not_active Expired - Lifetime
-
1995
- 1995-03-03 NO NO950836A patent/NO302866B1/en unknown
- 1995-03-06 FI FI951025A patent/FI108407B/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| NO950836L (en) | 1995-09-11 |
| FI108407B (en) | 2002-01-31 |
| EP0671217A2 (en) | 1995-09-13 |
| EP0671217A3 (en) | 1996-03-27 |
| ATE185092T1 (en) | 1999-10-15 |
| DE59408789D1 (en) | 1999-11-04 |
| DE4407779C2 (en) | 1997-07-31 |
| FI951025L (en) | 1995-09-10 |
| FI951025A0 (en) | 1995-03-06 |
| NO950836D0 (en) | 1995-03-03 |
| NO302866B1 (en) | 1998-05-04 |
| DE4407779A1 (en) | 1995-09-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE3624939C2 (en) | ||
| DE3116660C2 (en) | Multi-component atomizer nozzle | |
| DE69516792T2 (en) | Spray nozzle with internal air mixture | |
| DE4407780C2 (en) | Spray nozzle for creating a double spray cone | |
| DE112012005017B4 (en) | Apparatus for controlling fluid flow in an emergency washing system, apparatus for controlling fluid flow and washing system for providing fluid flow | |
| DE10010881B4 (en) | Method and device for discharging liquid media | |
| EP2100659B1 (en) | Device for creating and spraying an aerosol | |
| DE2645142A1 (en) | METHOD FOR GENERATING MIXED AND ATOMIZED FLUIDA AND DEVICE FOR CARRYING OUT THE METHOD | |
| EP0671217B1 (en) | Spray nozzle for generating a spray mist | |
| CH655868A5 (en) | TWO-MATERIAL SPRAYING NOZZLE. | |
| EP0801990B1 (en) | Spray nozzle, particularly for spraying water in fire protection installations | |
| DE10010880B4 (en) | Method and device for discharging liquid media | |
| DE102015200236A1 (en) | Method of producing a spray jet and two-fluid nozzle | |
| EP1470864B1 (en) | Two-fluid spray nozzle | |
| EP3935229B1 (en) | Aerator | |
| DE102005039412A1 (en) | Zweistoffzerstäubervorrichtung | |
| DE2757522B1 (en) | Round or ring jet nozzle for generating and blasting a mist or aerosol for coating objects | |
| DE102011102693A1 (en) | Extinguishing nozzle head for generating mist from extinguishing fluid, particularly water, is provided with extinguishing fluid receiving inlet, and flow channel forming opening in outer surface of extinguishing nozzle head | |
| DE10250693A1 (en) | Aerosol generating nozzle, has gas line entering injection chamber next to inlet region of exit channel | |
| EP3638424B1 (en) | Pulversiation nozzle | |
| DE102005004341A1 (en) | Water atomization device for use in e.g. printing plant, has water nozzle discharging water under formation of particles, and compressed-air nozzle in which air with specific pressure is supplied to discharged water jet | |
| DE20217652U1 (en) | Sprinkler jet with integral release has a compact housing for a triple spray system and an external release for a membrane valve | |
| DD141626A1 (en) | DRALLDUESE FOR THE PRODUCTION OF SPRUEHNEBELN | |
| DE102013020631B4 (en) | Extinguishing nozzle head | |
| DE1526962C (en) | Valve for throttling and cooling of superheated steam |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 19941216 |
|
| AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LI LU NL |
|
| PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
| AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LI LU NL |
|
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: TOTAL WALTHER GMBH, FEUERSCHUTZ UND SICHERHEIT |
|
| GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
| 17Q | First examination report despatched |
Effective date: 19981125 |
|
| GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
|
| GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
| GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LI LU NL |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRE;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.SCRIBED TIME-LIMIT Effective date: 19990929 Ref country code: GR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19990929 Ref country code: ES Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY Effective date: 19990929 |
|
| REF | Corresponds to: |
Ref document number: 185092 Country of ref document: AT Date of ref document: 19991015 Kind code of ref document: T |
|
| REG | Reference to a national code |
Ref country code: CH Ref legal event code: NV Representative=s name: TROESCH SCHEIDEGGER WERNER AG Ref country code: CH Ref legal event code: EP |
|
| ET | Fr: translation filed | ||
| REF | Corresponds to: |
Ref document number: 59408789 Country of ref document: DE Date of ref document: 19991104 |
|
| REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: GERMAN |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19991216 Ref country code: IE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19991216 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 19991229 |
|
| GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) |
Effective date: 19991230 |
|
| PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
| 26N | No opposition filed | ||
| REG | Reference to a national code |
Ref country code: IE Ref legal event code: MM4A |
|
| REG | Reference to a national code |
Ref country code: GB Ref legal event code: IF02 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20131230 Year of fee payment: 20 Ref country code: CH Payment date: 20131230 Year of fee payment: 20 Ref country code: AT Payment date: 20131204 Year of fee payment: 20 Ref country code: GB Payment date: 20131227 Year of fee payment: 20 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: NL Payment date: 20131226 Year of fee payment: 20 Ref country code: FR Payment date: 20131217 Year of fee payment: 20 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: BE Payment date: 20131227 Year of fee payment: 20 |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R071 Ref document number: 59408789 Country of ref document: DE |
|
| REG | Reference to a national code |
Ref country code: NL Ref legal event code: V4 Effective date: 20141216 |
|
| REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
| REG | Reference to a national code |
Ref country code: GB Ref legal event code: PE20 Expiry date: 20141215 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION Effective date: 20141215 |
|
| REG | Reference to a national code |
Ref country code: AT Ref legal event code: MK07 Ref document number: 185092 Country of ref document: AT Kind code of ref document: T Effective date: 20141216 |