EP1491260B1 - Double swirl nozzle - Google Patents

Double swirl nozzle Download PDF

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Publication number
EP1491260B1
EP1491260B1 EP03014004A EP03014004A EP1491260B1 EP 1491260 B1 EP1491260 B1 EP 1491260B1 EP 03014004 A EP03014004 A EP 03014004A EP 03014004 A EP03014004 A EP 03014004A EP 1491260 B1 EP1491260 B1 EP 1491260B1
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EP
European Patent Office
Prior art keywords
swirl
double
chambers
spray
spray nozzle
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
EP03014004A
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German (de)
French (fr)
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EP1491260A1 (en
Inventor
Thomas Schröder
Jürgen Speier
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.)
Lechler GmbH
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Lechler GmbH
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Application filed by Lechler GmbH filed Critical Lechler GmbH
Priority to ES03014004T priority Critical patent/ES2244868T3/en
Priority to EP03014004A priority patent/EP1491260B1/en
Priority to DK03014004T priority patent/DK1491260T3/en
Priority to SI200330065T priority patent/SI1491260T1/en
Priority to AT03014004T priority patent/ATE301502T1/en
Priority to DE50300967T priority patent/DE50300967D1/en
Priority to KR1020040045828A priority patent/KR101100856B1/en
Priority to CNB2004100594006A priority patent/CN100512973C/en
Priority to US10/872,817 priority patent/US7175109B2/en
Priority to JP2004182910A priority patent/JP4188881B2/en
Priority to ZA2004/04876A priority patent/ZA200404876B/en
Publication of EP1491260A1 publication Critical patent/EP1491260A1/en
Publication of EP1491260B1 publication Critical patent/EP1491260B1/en
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    • 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
    • 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
    • B05B1/3426—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 emerging in the swirl chamber perpendicularly to the outlet axis

Definitions

  • the invention relates to a Doppeldrallsprühdüse with two swirl chambers for generating spray with opposite spin as well as with a common inflow channel, which is in a median plane between the swirl chambers and each tangent in the swirl chambers empties.
  • a double-twist spray nozzle according to the preamble of claim 1 is known from document FR 882 080. Nozzles of this type become particular, as do other double jet spray nozzles according to DE 197 58 526 A1, mainly for so-called Gas scrubber used in which a washing liquid over a Variety of spray nozzles distributed as evenly as possible in the gas stream is introduced across the cross section.
  • gas scrubbers can, for example Flue gas cleaning systems are in which acidic flue gas components like sulfur dioxide, chlorine or hydrogen fluoride as well to a lesser extent also flue gas dust by using appropriate Washing liquids are deposited.
  • the nozzle assembly in such scrubbers is on several levels distributed, with the gas in the scrubbers usually from below flows upward and the atomized medium down, ie against the gas flow drops.
  • the gas in the scrubbers usually from below flows upward and the atomized medium down, ie against the gas flow drops.
  • the lower area are the previously mentioned Double-twist spray nozzles according to DE 100 33 781 C1, while in the upper area only to one side, that is, down, spraying Eccentric nozzles be provided to avoid being in the top End of scrubbers, especially flue gas desulphurisation plants sprayed droplet separator is sprayed.
  • Such eccentric nozzles generally have the following disadvantages: Da often the same volume flow as in the double-jet spray nozzles in lower range is desired, this must now by a swirl chamber (Mouthpiece) to be sprayed; this causes the droplet spectrum to coarsen, which can adversely affect the process. Want keep the drop spectrum constant and therefore halve the volume flow per nozzle, so you have to place twice as many nozzles, which at high cost (fasteners, mounting, pipe socket) can lead. Since the twisting direction of all eccentric nozzles is rectified, a spin is formed on the gas flow, which - as indicated above - can negatively affect the leaching.
  • both swirl chambers are open to the same side. Surprisingly, it has become thereby showing that in this case because of the common Inflow channels of the adjacent swirl chambers already short after exiting mutually overlapping sprays to none lead to adverse development of the resulting Sprühfumbleers. Because the Drops of directly adjacent spray cone through the small Distance of the swirl chambers quasi unopposed, leads the oppositely directed radial velocity of the drops so to a shock, that the drops burst and thereby the Drop spectrum refines. This effect is traditional arranged nozzles with a distance of 700 - 1200 mm to each other also present, but due to the air resistance there slowed radial speed is less pronounced. By the The invention therefore produces a droplet spectrum which leads to an improved Efficiency contributes. Since the twist chambers themselves only for half Volume flow can be designed, the overall length and so that also reduces the forces acting on the nozzle connection moments become.
  • the axes of the swirl chambers in at an angle to each other, towards the exit sides opens.
  • This embodiment allows an enlargement of the Spraying covered area. The danger of being untreated Gas strands pass through the scrubber, is thus reduced.
  • the new Double vortex spray nozzle is very compact and effective. It has shown that when the setting angle of the axes of the swirl chambers about 20 °, a particularly advantageous spray jet training can be achieved.
  • Figures 1 to 3 show that the new double-twist spray nozzle has a compact housing 1 with a connecting piece 2, the outside is provided with a connection thread 3, which with a Connection nut of an inflow pipe, not shown, can be screwed.
  • the housing 1 encloses two mirror-symmetrical to that of FIG. 2 apparent center plane 4 trained swirl chambers 5 and 6, respectively pass into trumpet-shaped outlet openings 5a, 6a.
  • the axes 7 and 8 of the swirl chambers 5 and 6 are against each other inclined at an angle ⁇ , which is 20 ° in the embodiment.
  • the flow channel 10 of the connecting piece goes 2 without significant cross-sectional constriction in the two swirl chambers 5 and 6, both open to the same side.
  • the connecting piece 2 supplied beam of the liquid used Medium - depending on the application for the relevant Gas scrubber is selected - meets the against its flow direction pointing cutting edge 9 on.
  • the beam is therefore split into two parts, one of them right through the swirl chamber 6 and the other is introduced to the left in the swirl chamber 5, from where then the spray jet outlet in the form of a spray cone after the same Page done.
  • the flow channel 10 goes on the of the cutting edge. 9 opposite side behind an edge 11 in the respective swirl chamber fifth and 6, it forms an intersection with the associated swirl chamber.
  • the two Spray jets have an opposite twist and overlap in the facing area. There, despite the rectified, circumferentially acting velocity vectors because of the opposing radial velocity a secondary decomposition the liquid droplets formed in the spray jet take place, As already mentioned, which has a positive effect on the efficiency the gas cleaning effect.
  • the invention can now only by mounting a single nozzle to achieve a spray extension as well as an interaction the mutually overlapping and with different Swirling spray cone, the beneficial effects on the cleaning efficiency Has.

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  • Nozzles (AREA)
  • Treating Waste Gases (AREA)
  • Gas Separation By Absorption (AREA)
  • Jet Pumps And Other Pumps (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Fats And Perfumes (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Seal Device For Vehicle (AREA)

Abstract

A gas washer has water jets, each of which has a water inlet (10) and two outlet chambers (5, 6) that impart a rotational twist to the emerging droplets in opposite directions. The two jets are aligned along slightly diverging axes. The overlapping droplet zone the contra-rotation of droplets results in collisions and further droplet atomisation.

Description

Die Erfindung betrifft eine Doppeldrallsprühdüse mit zwei Drallkammern zu Erzeugung von Sprühstrahlen mit entgegengesetztem Drall sowie mit einem gemeinsamen Zuströmkanal, der in einer Mittelebene zwischen den Drallkammern verläuft und jeweils tangential in die Drallkammern mündet.The invention relates to a Doppeldrallsprühdüse with two swirl chambers for generating spray with opposite spin as well as with a common inflow channel, which is in a median plane between the swirl chambers and each tangent in the swirl chambers empties.

Eine Doppeldrallsprühdüse gemäß dem Oberbegriff des Anspruchs 1 ist aus dem Dokument FR 882 080 bekannt. Düsen dieser Art werden insbesondere, wie auch andere Doppeldrallsprühdüsen nach der DE 197 58 526 A1, vorwiegend für sogenannte Gaswäscher verwendet, bei denen eine Waschflüssigkeit über eine Vielzahl von Sprühdüsen im Gasstrom möglichst gleichmäßig verteilt über den Querschnitt eingeführt wird. Solche Gaswäscher können beispielsweise Rauchgasreinigungsanlagen sein, in denen saure Rauchgasbestandteile wie Schwefeldioxid, Chlor oder Fluorwasserstoff sowie in geringerem Umfang auch Rauchgasstaub durch Verwendung entsprechender Waschflüssigkeiten abgeschieden werden. Der Vorteil der eingangs erwähnten Doppeldralldüsen ist es dabei, dass sich die Drallwirkung der eingespeisten Waschflüssigkeit gegenseitig aufhebt, so dass sich eine unerwünschte Beeinflussung der Strömung im Gaswäscher vermeiden lässt. Dies führt zu einem höheren Wirkungsgrad.A double-twist spray nozzle according to the preamble of claim 1 is known from document FR 882 080. Nozzles of this type become particular, as do other double jet spray nozzles according to DE 197 58 526 A1, mainly for so-called Gas scrubber used in which a washing liquid over a Variety of spray nozzles distributed as evenly as possible in the gas stream is introduced across the cross section. Such gas scrubbers can, for example Flue gas cleaning systems are in which acidic flue gas components like sulfur dioxide, chlorine or hydrogen fluoride as well to a lesser extent also flue gas dust by using appropriate Washing liquids are deposited. The advantage of in the above-mentioned double-flow nozzles, it is here that the swirl effect the injected washing liquid cancel each other, so that an undesirable influence on the flow in the gas scrubber avoid it. This leads to a higher efficiency.

Die Düsenbestückung in solchen Gaswäschern ist auf mehrere Ebenen verteilt, wobei das Gas in den Gaswäschern in der Regel von unten nach oben strömt und das zerstäubte Medium nach unten, also gegen die Gasströmung fällt. Im unteren Bereich werden die vorher erwähnten Doppeldrallsprühdüsen nach der DE 100 33 781 C1 eingesetzt, während im oberen Bereich nur nach einer Seite, also nach unten, sprühende Exzenterdüsen vorgesehen werden, um zu vermeiden, dass in den am oberen Ende von Gaswäschern, insbesondere Rauchgasentschwefelungsanlagen vorgesehenen Tropfenabscheider gesprüht wird.The nozzle assembly in such scrubbers is on several levels distributed, with the gas in the scrubbers usually from below flows upward and the atomized medium down, ie against the gas flow drops. In the lower area are the previously mentioned Double-twist spray nozzles according to DE 100 33 781 C1, while in the upper area only to one side, that is, down, spraying Eccentric nozzles be provided to avoid being in the top End of scrubbers, especially flue gas desulphurisation plants sprayed droplet separator is sprayed.

Solche Exzenterdüsen weisen in der Regel folgende Nachteile auf: Da oft der gleiche Volumenstrom, wie bei den Doppeldrallsprühdüsen im unteren Bereich gewünscht ist, muss dieser nun durch eine Drallkammer (Mundstück) versprüht werden; dadurch vergröbert sich das Tropfenspektrum, welches sich nachteilig auf den Prozess auswirken kann. Will man das Tropfenspektrum konstant halten und halbiert daher den Volumenstrom pro Düse, so muss man doppelt so viele Düsen platzieren, welches zu hohen Kosten (Befestigungsmittel, Montage, Rohrstutzen) führen kann. Da die Drallrichtung aller Exzenterdüsen gleichgerichtet ist, prägt sich ein Drall auf den Gasstrom aus, der sich - wie oben angedeutet - negativ auf die Auswaschung auswirken kann.Such eccentric nozzles generally have the following disadvantages: Da often the same volume flow as in the double-jet spray nozzles in lower range is desired, this must now by a swirl chamber (Mouthpiece) to be sprayed; this causes the droplet spectrum to coarsen, which can adversely affect the process. Want keep the drop spectrum constant and therefore halve the volume flow per nozzle, so you have to place twice as many nozzles, which at high cost (fasteners, mounting, pipe socket) can lead. Since the twisting direction of all eccentric nozzles is rectified, a spin is formed on the gas flow, which - as indicated above - can negatively affect the leaching.

Es ist die Aufgabe der vorliegenden Erfindung, eine Doppeldrallsprühdüse der eingangs genannten Art so auszubilden, dass ein Sprühstrahl trotz Drallaufhebung nur nach einer Seite möglich ist. It is the object of the present invention to provide a double-twist spray nozzle of the type mentioned above in such a way that a spray despite swirl cancellation only to one side is possible.

Zur Lösung dieser Aufgabe wird vorgesehen, dass beide Drallkammern nach der gleichen Seite hin offen sind. Überraschenderweise hat sich dabei gezeigt, dass die sich in diesem Fall wegen des gemeinsamen Zuströmkanals der nebeneinander liegenden Drallkammern schon kurz nach dem Austritt gegenseitig überlappenden Sprühstrahlen zu keiner nachteiligen Ausbildung des entstehenden Sprühfächers führen. Da die Tropfen der direkt benachbart entstehenden Sprühkegel durch den geringen Abstand der Drallkammern quasi ungebremst aufeinander treffen, führt die entgegengesetzt gerichtete Radialgeschwindigkeit der Tropfen derart zu einem Stoß, dass die Tropfen aufplatzen und hierdurch das Tropfenspektrum sich verfeinert. Dieser Effekt ist zwar bei traditionell angeordneten Düsen mit einem Abstand von 700 - 1200 mm zueinander auch vorhanden, jedoch aufgrund der dort durch den Luftwiderstand gebremsten Radialgeschwindigkeit nicht mehr so ausgeprägt. Durch die Erfindung entsteht daher ein Tropfenspektrum, das zu einem verbesserten Wirkungsgrad beiträgt. Da die Drallräume selber nur für den halben Volumenstrom ausgelegt werden müssen, können die Baulänge und damit auch die auf die Düsenverbindung wirkenden Momente reduziert werden.To solve this problem, it is provided that both swirl chambers are open to the same side. Surprisingly, it has become thereby showing that in this case because of the common Inflow channels of the adjacent swirl chambers already short after exiting mutually overlapping sprays to none lead to adverse development of the resulting Sprühfächers. Because the Drops of directly adjacent spray cone through the small Distance of the swirl chambers quasi unopposed, leads the oppositely directed radial velocity of the drops so to a shock, that the drops burst and thereby the Drop spectrum refines. This effect is traditional arranged nozzles with a distance of 700 - 1200 mm to each other also present, but due to the air resistance there slowed radial speed is less pronounced. By the The invention therefore produces a droplet spectrum which leads to an improved Efficiency contributes. Since the twist chambers themselves only for half Volume flow can be designed, the overall length and so that also reduces the forces acting on the nozzle connection moments become.

In Weiterbildung der Erfindung können die Achsen der Drallkammern in einem Winkel zueinander verlaufen, der sich zu den Austrittsseiten hin öffnet. Diese Ausgestaltung ermöglicht eine Vergrößerung der von den Sprühstrahlen abgedeckten Fläche. Die Gefahr, dass unbehandelte Gassträhnen durch den Wäscher gelangen, ist somit reduziert. Die neue Doppeldrallsprühdüse baut sehr kompakt und ist wirkungsvoll. Es hat sich gezeigt, dass dann, wenn der Einstellwinkel der Achsen der Drallkammern etwa 20° beträgt, eine besonders vorteilhafte Sprühstrahlausbildung erreicht werden kann.In a further development of the invention, the axes of the swirl chambers in at an angle to each other, towards the exit sides opens. This embodiment allows an enlargement of the Spraying covered area. The danger of being untreated Gas strands pass through the scrubber, is thus reduced. The new Double vortex spray nozzle is very compact and effective. It has shown that when the setting angle of the axes of the swirl chambers about 20 °, a particularly advantageous spray jet training can be achieved.

Die Erfindung ist in der Zeichnung anhand eines Ausführungsbeispieles dargestellt und wird im folgenden erläutert. Es zeigen:

Fig. 1
eine perspektivische Darstellung einer neuen Doppeldrallsprühdüse,
Fig. 2
die Ansicht der Düse nach Fig. 1 von der Seite des Zuführ- stutzens aus,
Fig. 3
eine Seitenansicht,
Fig. 4
den Schnitt durch die Sprühdüse nach Fig. 3 längs der Schnittlinie IV-IV und
Fig. 5
den Schnitt durch die Sprühdüse der Fig. 3 längs der Schnittlinie V-V.
The invention is illustrated in the drawing with reference to an embodiment and will be explained below. Show it:
Fig. 1
a perspective view of a new double-jet spray nozzle,
Fig. 2
the view of the nozzle according to FIG. 1 from the side of the supply nozzle,
Fig. 3
a side view,
Fig. 4
the section through the spray nozzle of FIG. 3 along the section line IV-IV and
Fig. 5
the section through the spray nozzle of Fig. 3 along the section line VV.

Die Figuren 1 bis 3 lassen erkennen, dass die neue Doppeldrallsprühdüse ein kompaktes Gehäuse 1 mit einem Anschlussstutzen 2 besitzt, der außen mit einem Anschlussgewinde 3 versehen ist, das mit einer Anschlussmutter eines nicht gezeigten Zuflussrohres verschraubbar ist. Das Gehäuse 1 umschließt zwei spiegelsymmetrisch zu der aus Fig. 2 ersichtlichen Mittelebene 4 ausgebildete Drallkammern 5 und 6, die jeweils in trompetenartig ausgebildete Austrittsöffnungen 5a, 6a übergehen. Die Achsen 7 bzw. 8 der Drallkammern 5 und 6 sind gegeneinander unter einem Winkel α geneigt, der beim Ausführungsbeispiel 20° beträgt.Figures 1 to 3 show that the new double-twist spray nozzle has a compact housing 1 with a connecting piece 2, the outside is provided with a connection thread 3, which with a Connection nut of an inflow pipe, not shown, can be screwed. The housing 1 encloses two mirror-symmetrical to that of FIG. 2 apparent center plane 4 trained swirl chambers 5 and 6, respectively pass into trumpet-shaped outlet openings 5a, 6a. The axes 7 and 8 of the swirl chambers 5 and 6 are against each other inclined at an angle α, which is 20 ° in the embodiment.

Wie die Fig. 5 zeigt, geht der Strömungskanal 10 des Anschlussstutzens 2 ohne nennenswerte Querschnittsverengung in die beiden Drallkammern 5 und 6 über, die beide nach der gleichen Seite hin offen sind. Der durch den Anschlussstutzen 2 zugeführte Strahl des verwendeten flüssigen Mediums - das je nach Anwendungsfall für den betreffenden Gaswäscher ausgewählt wird - trifft auf die gegen seine Strömungsrichtung weisende Schneide 9 auf. Der Strahl wird daher in zwei Teile zerlegt, von denen einer rechtsherum durch die Drallkammer 6 und der andere linksherum in die Drallkammer 5 eingeführt wird, von wo aus dann der Sprühstrahlaustritt in Form eines Sprühkegels nach der gleichen Seite erfolgt. Der Strömungskanal 10 geht auf der von der Schneide 9 abgewandten Seite hinter einer Kante 11 in die jeweilige Drallkammer 5 und 6 über, er bildet eine Verschneidung mit der zugeordneten Drallkammer. (Mit 12 sind fertigungstechnisch nötige Auffüllungen bezeichnet, um die Herstellbarkeit (Entformbarkeit) zu gewährleisten). Die beiden Sprühstrahlen weisen einen gegenläufigen Drall auf und überlappen sich in dem einander zugewandten Bereich. Dort kann trotz der gleichgerichteten, in Umfangsrichtung wirkenden Geschwindigkeitsvektoren wegen der entgegengerichteten Radialgeschwindigkeit eine Sekundäraufspaltung der im Sprühstrahl entstandenen Flüssigkeitstropfen erfolgen, wie eingangs schon erwähnt, was sich positiv auf den Wirkungsgrad der Gasreinigung auswirkt.As shown in FIG. 5, the flow channel 10 of the connecting piece goes 2 without significant cross-sectional constriction in the two swirl chambers 5 and 6, both open to the same side. Of the through the connecting piece 2 supplied beam of the liquid used Medium - depending on the application for the relevant Gas scrubber is selected - meets the against its flow direction pointing cutting edge 9 on. The beam is therefore split into two parts, one of them right through the swirl chamber 6 and the other is introduced to the left in the swirl chamber 5, from where then the spray jet outlet in the form of a spray cone after the same Page done. The flow channel 10 goes on the of the cutting edge. 9 opposite side behind an edge 11 in the respective swirl chamber fifth and 6, it forms an intersection with the associated swirl chamber. (With 12 production-technically necessary fillings are called, to ensure manufacturability (releasability)). The two Spray jets have an opposite twist and overlap in the facing area. There, despite the rectified, circumferentially acting velocity vectors because of the opposing radial velocity a secondary decomposition the liquid droplets formed in the spray jet take place, As already mentioned, which has a positive effect on the efficiency the gas cleaning effect.

Da die beiden Drallkammerachsen 7 und 8 unter einem Winkel zueinander geneigt sind, lässt sich die Größe des Überlappungsbereiches beider Sprühkegel beeinflussen und es hat sich gezeigt, dass bei einem gewählten Winkel α von etwa 20° eine besonders gute Tropfenverteilung in dem Doppelsprühstrahl auftritt. Durch die Neigung der Achsen gegeneinander wird auch der gesamte Sprühstrahlbereich vergrößert, so dass auch der Kontaktbereich mit dem zu reinigenden Gas größer wird.Since the two swirling chamber axes 7 and 8 are at an angle to each other are inclined, the size of the overlap area of both Spray cone influence and it has been shown that at one selected angle α of about 20 °, a particularly good droplet distribution occurs in the double spray. Due to the inclination of the axes against each other also the entire spray jet area is increased, so that also the contact area with the gas to be cleaned becomes larger.

Durch die Erfindung lässt sich nunmehr lediglich durch Montage einer einzigen Düse eine Sprühstrahlerweiterung erreichen sowie eine Interaktion der sich gegenseitig überdeckenden und mit unter-schiedlichem Drall behafteten Sprühkegel, die vorteilhafte Auswirkungen auf den Reinigungswirkungsgrad hat.The invention can now only by mounting a single nozzle to achieve a spray extension as well as an interaction the mutually overlapping and with different Swirling spray cone, the beneficial effects on the cleaning efficiency Has.

Claims (5)

  1. Double-swirl spray nozzle with two swirl chambers to generate spray jets with opposing swirls, whereby the openings (5a, 6a) of both swirl chambers (5, 6) face the same side, characterized in that a common feed channel (10) is provided that runs in a midplane (4) between the swirl chambers (5, 6) and ends tangentially in the swirl chambers.
  2. Double-swirl spray nozzle according to claim 1, characterized in that the swirl chambers (5, 6) are designed to mirror each other across the midplane (4).
  3. Double-swirl spray nozzle according to claim 1, characterized in that the axes (7, 8) of the swirl chambers (5, 6) at the feed channel (10) are at a distance (a) from each other that corresponds to the diameter of a swirl chamber.
  4. Double-swirl spray nozzle according to claim 1, characterized in that the axes (7, 8) of the swirl chambers (5, 6) run at an angle (α) in relation to each other that opens to the side of the outlet openings (5a, 6a).
  5. Double-swirl spray nozzle according to claim 4, characterized in that the angle (α) is approximately 20°.
EP03014004A 2003-06-21 2003-06-21 Double swirl nozzle Expired - Lifetime EP1491260B1 (en)

Priority Applications (11)

Application Number Priority Date Filing Date Title
ES03014004T ES2244868T3 (en) 2003-06-21 2003-06-21 DOUBLE TURBULENCE SPRAY NOZZLE.
EP03014004A EP1491260B1 (en) 2003-06-21 2003-06-21 Double swirl nozzle
DK03014004T DK1491260T3 (en) 2003-06-21 2003-06-21 Double vortex nozzle
SI200330065T SI1491260T1 (en) 2003-06-21 2003-06-21 Double swirl nozzle
AT03014004T ATE301502T1 (en) 2003-06-21 2003-06-21 DOUBLE SWIRL SPRAY NOZZLE
DE50300967T DE50300967D1 (en) 2003-06-21 2003-06-21 Doppeldrallsprühdüse
KR1020040045828A KR101100856B1 (en) 2003-06-21 2004-06-19 Double twist spray nozzle
CNB2004100594006A CN100512973C (en) 2003-06-21 2004-06-21 Double-swirl spray nozzle
US10/872,817 US7175109B2 (en) 2003-06-21 2004-06-21 Double-swirl spray nozzle
JP2004182910A JP4188881B2 (en) 2003-06-21 2004-06-21 Double swivel spray nozzle
ZA2004/04876A ZA200404876B (en) 2003-06-21 2004-06-21 A double-swirl spray nozzle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP03014004A EP1491260B1 (en) 2003-06-21 2003-06-21 Double swirl nozzle

Publications (2)

Publication Number Publication Date
EP1491260A1 EP1491260A1 (en) 2004-12-29
EP1491260B1 true EP1491260B1 (en) 2005-08-10

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Family Applications (1)

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EP03014004A Expired - Lifetime EP1491260B1 (en) 2003-06-21 2003-06-21 Double swirl nozzle

Country Status (11)

Country Link
US (1) US7175109B2 (en)
EP (1) EP1491260B1 (en)
JP (1) JP4188881B2 (en)
KR (1) KR101100856B1 (en)
CN (1) CN100512973C (en)
AT (1) ATE301502T1 (en)
DE (1) DE50300967D1 (en)
DK (1) DK1491260T3 (en)
ES (1) ES2244868T3 (en)
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EP3088087A1 (en) 2015-04-28 2016-11-02 Lechler GmbH Spray nozzle and method for producing non-round spray cones

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WO2011123865A1 (en) 2010-04-02 2011-10-06 Sta-Rite Industries, Llc Air aspiration device
JP5961383B2 (en) * 2012-01-11 2016-08-02 日立オートモティブシステムズ株式会社 Fuel injection valve
JP2015042389A (en) * 2013-08-26 2015-03-05 株式会社Ihi Exhaust gas desulfurizer
US20160375876A1 (en) * 2015-06-25 2016-12-29 Ron Silc High pressure air nozzle camera lens cleaning system
JP6523984B2 (en) * 2016-02-12 2019-06-05 日立オートモティブシステムズ株式会社 Fuel injection valve
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CN108889038B (en) * 2018-09-22 2024-04-12 盐城市兰丰环境工程科技有限公司 Tobacco feather whitening device
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Publication number Priority date Publication date Assignee Title
EP3088087A1 (en) 2015-04-28 2016-11-02 Lechler GmbH Spray nozzle and method for producing non-round spray cones
DE102015207741A1 (en) 2015-04-28 2016-11-03 Lechler Gmbh spray nozzle
US9925546B2 (en) 2015-04-28 2018-03-27 Lechler Gmbh Spray nozzle and method for producing non-round spray cones

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US7175109B2 (en) 2007-02-13
DK1491260T3 (en) 2005-11-14
CN100512973C (en) 2009-07-15
JP2005007394A (en) 2005-01-13
JP4188881B2 (en) 2008-12-03
EP1491260A1 (en) 2004-12-29
CN1572374A (en) 2005-02-02
KR20040111189A (en) 2004-12-31
SI1491260T1 (en) 2005-10-31
ES2244868T3 (en) 2005-12-16
DE50300967D1 (en) 2005-09-15
ZA200404876B (en) 2005-04-26
US20050017093A1 (en) 2005-01-27
ATE301502T1 (en) 2005-08-15
KR101100856B1 (en) 2012-01-02

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