EP1491260A1 - Double swirl nozzle - Google Patents

Double swirl nozzle Download PDF

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Publication number
EP1491260A1
EP1491260A1 EP03014004A EP03014004A EP1491260A1 EP 1491260 A1 EP1491260 A1 EP 1491260A1 EP 03014004 A EP03014004 A EP 03014004A EP 03014004 A EP03014004 A EP 03014004A EP 1491260 A1 EP1491260 A1 EP 1491260A1
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EP
European Patent Office
Prior art keywords
swirl
swirl chambers
double
spray
chambers
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
EP03014004A
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German (de)
French (fr)
Other versions
EP1491260B1 (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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Publication date
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=33395841&utm_source=***_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1491260(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Lechler GmbH filed Critical Lechler GmbH
Priority to DE50300967T priority Critical patent/DE50300967D1/en
Priority to DK03014004T priority patent/DK1491260T3/en
Priority to ES03014004T priority patent/ES2244868T3/en
Priority to AT03014004T priority patent/ATE301502T1/en
Priority to SI200330065T priority patent/SI1491260T1/en
Priority to EP03014004A priority patent/EP1491260B1/en
Priority to KR1020040045828A priority patent/KR101100856B1/en
Priority to JP2004182910A priority patent/JP4188881B2/en
Priority to US10/872,817 priority patent/US7175109B2/en
Priority to CNB2004100594006A priority patent/CN100512973C/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
Application granted granted Critical
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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 jets with opposite swirl and with a common inflow channel, which runs in a median plane between the swirl chambers and each opens tangentially into the swirl chambers.
  • a double-twist spray nozzle of this type is known from DE 100 33 781 C1. Nozzles of this type are used in particular, as well as other double-jet spray nozzles according to DE 197 58 526 A1, predominantly for so-called gas scrubbers, in which a scrubbing liquid is introduced via a plurality of spray nozzles in the gas stream as evenly distributed over the cross section.
  • gas scrubbers can be, for example, flue gas purification systems in which acidic flue gas components such as sulfur dioxide, chlorine or hydrogen fluoride and, to a lesser extent, flue gas dust are separated by using appropriate washing liquids.
  • the advantage of In the above-mentioned double-flow nozzles it is the case that the swirl effect of the injected washing liquid cancel each other out, so that an undesirable influence of the flow in the gas scrubber can be avoided. This leads to a higher efficiency.
  • the nozzle assembly in such scrubbers is distributed over several levels, the gas in the scrubbers usually flows from bottom to top and the atomized medium falls down, ie against the gas flow.
  • spraying eccentric nozzles are provided to avoid that in the top of gas scrubbers, in particular flue gas desulphurisation sprayed droplet separator is sprayed.
  • eccentric nozzles have the following disadvantages: since the same volume flow as in the case of the double-jet spray nozzles is often desired in the lower region, it must now be sprayed through a swirl chamber (mouthpiece); This coarsens the droplet spectrum, which can adversely affect the process. If you want to keep the drop spectrum constant and halved therefore the flow rate per nozzle, so you have to place twice as many nozzles, which can lead to high costs (fasteners, mounting, pipe socket). Since the swirl direction of all eccentric nozzles is rectified, a swirl is imposed on the gas flow, which - as indicated above - can have a negative effect on the leaching.
  • both swirl chambers are open towards the same side.
  • overlapping sprays do not result in any disadvantageous formation of the resulting spray fan.
  • the oppositely directed radial velocity of the droplets results in an impact such that the droplets burst and thereby refine the droplet spectrum.
  • This effect is also present in traditionally arranged nozzles with a distance of 700-1200 mm from one another, it is no longer so pronounced due to the radial velocity braked there due to the air resistance.
  • the invention therefore produces a droplet spectrum which contributes to improved efficiency. Since the swirl chambers themselves must be designed for only half the volume flow, the overall length and thus also the moments acting on the nozzle connection can be reduced.
  • the axes of the swirl chambers can extend at an angle to each other, which opens to the outlet sides.
  • This embodiment allows an enlargement of the area covered by the spray jets. The risk of untreated gas strands passing through the scrubber is thus reduced.
  • the new double vortex spray nozzle is very compact and effective. It has been shown that when the setting angle of the axes of the swirl chambers is about 20 °, a particularly advantageous spray jet training can be achieved.
  • FIGS. 1 to 3 show that the new double-twist spray nozzle has a compact housing 1 with a connecting piece 2, which is externally provided with a connecting thread 3, which can be screwed to a connecting nut of an inflow pipe (not shown).
  • the housing 1 encloses two spin-symmetrical chambers 5 and 6 formed mirror-symmetrically to the central plane 4 shown in FIG. 2, each of which merges into trumpet-shaped outlet openings 5a, 6a.
  • the axes 7 and 8 of the swirl chambers 5 and 6 are mutually inclined ⁇ at an angle which is 20 ° in the embodiment.
  • the flow channel 10 of the connecting piece 2 passes without significant cross-sectional constriction in the two swirl chambers 5 and 6, which are both open to the same side.
  • the supplied through the connecting piece 2 beam of the liquid medium used - which is selected depending on the application for the gas scrubber concerned - applies to the against its flow direction pointing cutting edge 9 on.
  • the jet is therefore divided into two parts, one of which is introduced to the right by the swirl chamber 6 and the other anti-clockwise in the swirl chamber 5, from where then the spray jet exit takes place in the form of a spray cone on the same side.
  • the flow channel 10 goes on the side facing away from the cutting edge 9 behind an edge 11 in the respective swirl chamber 5 and 6, he 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, acting in the circumferential direction velocity vectors due to the opposing radial velocity secondary splitting of the liquid droplets formed in the spray, as already mentioned, which has a positive effect on the efficiency of the gas cleaning.
  • the size of the overlap region of both spray cones can be influenced and it has been shown that a particularly good droplet distribution occurs in the double spray jet at a selected angle ⁇ of about 20 °. Due to the inclination of the axes against each other and the entire spray jet area is increased, so that the contact area with the gas to be cleaned is larger.

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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 jets with opposite swirl and with a common inflow channel, which runs in a median plane between the swirl chambers and each opens tangentially into the swirl chambers.

Eine Doppeldrallsprühdüse dieser Art ist aus der DE 100 33 781 C1 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 of this type is known from DE 100 33 781 C1. Nozzles of this type are used in particular, as well as other double-jet spray nozzles according to DE 197 58 526 A1, predominantly for so-called gas scrubbers, in which a scrubbing liquid is introduced via a plurality of spray nozzles in the gas stream as evenly distributed over the cross section. Such gas scrubbers can be, for example, flue gas purification systems in which acidic flue gas components such as sulfur dioxide, chlorine or hydrogen fluoride and, to a lesser extent, flue gas dust are separated by using appropriate washing liquids. The advantage of In the above-mentioned double-flow nozzles, it is the case that the swirl effect of the injected washing liquid cancel each other out, so that an undesirable influence of the flow in the gas scrubber can be avoided. 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 distributed over several levels, the gas in the scrubbers usually flows from bottom to top and the atomized medium falls down, ie against the gas flow. In the lower part of the aforementioned double-jet spray nozzles are used according to DE 100 33 781 C1, while in the upper region only after one side, so downwards, spraying eccentric nozzles are provided to avoid that in the top of gas scrubbers, in particular flue gas desulphurisation 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.As a rule, such eccentric nozzles have the following disadvantages: since the same volume flow as in the case of the double-jet spray nozzles is often desired in the lower region, it must now be sprayed through a swirl chamber (mouthpiece); This coarsens the droplet spectrum, which can adversely affect the process. If you want to keep the drop spectrum constant and halved therefore the flow rate per nozzle, so you have to place twice as many nozzles, which can lead to high costs (fasteners, mounting, pipe socket). Since the swirl direction of all eccentric nozzles is rectified, a swirl is imposed on the gas flow, which - as indicated above - can have a negative effect on 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 design a double-jet spray nozzle of the type mentioned above such that a spray jet is possible only after one side, despite swirl cancellation.

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 towards the same side. Surprisingly, it has been shown that in this case, because of the common inflow channel of the juxtaposed swirl chambers, shortly after emergence, overlapping sprays do not result in any disadvantageous formation of the resulting spray fan. Since the droplets of the directly adjacent spray cones meet each other almost unrestrained due to the small spacing of the swirl chambers, the oppositely directed radial velocity of the droplets results in an impact such that the droplets burst and thereby refine the droplet spectrum. Although this effect is also present in traditionally arranged nozzles with a distance of 700-1200 mm from one another, it is no longer so pronounced due to the radial velocity braked there due to the air resistance. The invention therefore produces a droplet spectrum which contributes to improved efficiency. Since the swirl chambers themselves must be designed for only half the volume flow, the overall length and thus also the moments acting on the nozzle connection can be reduced.

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 can extend at an angle to each other, which opens to the outlet sides. This embodiment allows an enlargement of the area covered by the spray jets. The risk of untreated gas strands passing through the scrubber is thus reduced. The new double vortex spray nozzle is very compact and effective. It has been shown that when the setting angle of the axes of the swirl chambers is 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 Zuführstutzens 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.FIGS. 1 to 3 show that the new double-twist spray nozzle has a compact housing 1 with a connecting piece 2, which is externally provided with a connecting thread 3, which can be screwed to a connecting nut of an inflow pipe (not shown). The housing 1 encloses two spin-symmetrical chambers 5 and 6 formed mirror-symmetrically to the central plane 4 shown in FIG. 2, each of which merges into trumpet-shaped outlet openings 5a, 6a. The axes 7 and 8 of the swirl chambers 5 and 6 are mutually inclined α at an angle 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 2 passes without significant cross-sectional constriction in the two swirl chambers 5 and 6, which are both open to the same side. The supplied through the connecting piece 2 beam of the liquid medium used - which is selected depending on the application for the gas scrubber concerned - applies to the against its flow direction pointing cutting edge 9 on. The jet is therefore divided into two parts, one of which is introduced to the right by the swirl chamber 6 and the other anti-clockwise in the swirl chamber 5, from where then the spray jet exit takes place in the form of a spray cone on the same side. The flow channel 10 goes on the side facing away from the cutting edge 9 behind an edge 11 in the respective swirl chamber 5 and 6, he forms an intersection with the associated swirl chamber. (With 12 production-technically necessary fillings are designated to ensure the manufacturability (releasability)). The two spray jets have an opposite twist and overlap in the facing area. There, despite the rectified, acting in the circumferential direction velocity vectors due to the opposing radial velocity secondary splitting of the liquid droplets formed in the spray, as already mentioned, which has a positive effect on the efficiency of the gas cleaning.

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 swirl chamber axes 7 and 8 are inclined at an angle to one another, the size of the overlap region of both spray cones can be influenced and it has been shown that a particularly good droplet distribution occurs in the double spray jet at a selected angle α of about 20 °. Due to the inclination of the axes against each other and the entire spray jet area is increased, so that the contact area with the gas to be cleaned is 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.By means of the invention, it is now possible to achieve a spray jet extension merely by mounting a single nozzle, as well as an interaction of the spray cones which overlap one another and have different swirls, which has advantageous effects on the cleaning efficiency.

Claims (5)

Doppeldrallsprühdüse mit zwei Drallkammern zur Erzeugung von Sprühstrahlen mit entgegengesetztem Drall sowie mit einem gemeinsamen Zuströmkanal (10) der um eine Mittelebene (4) zwischen den Drallkammern (5, 6) verläuft und jeweils tangential in die Drallkammern mündet,
dadurch gekennzeichnet, dass
die Öffnungen (5a, 6a) beider Drallkammern (5, 6) nach der gleichen Seite weisen.Double-twist spray nozzle with two swirl chambers for generating spray jets with opposite swirl and with a common inflow channel (10) which runs around a median plane (4) between the swirl chambers (5, 6) and each opens tangentially into the swirl chambers,
characterized in that
the openings (5a, 6a) of both swirl chambers (5, 6) point to the same side. Doppeldrallsprühdüse nach Anspruch 1, dadurch gekennzeichnete, dass die Drallkammern (5, 6) bezüglich der Mittelebene (4) spiegelbildlich zueinander ausgebildet sind.Doppeldrallsprühdüse according to claim 1, characterized in that the swirl chambers (5, 6) with respect to the median plane (4) are mirror images of each other. Doppeldrallsprühdüse nach Anspruch 1, dadurch gekennzeichnet, dass die Achsen (7, 8) der Drallkammern (5, 6) im Bereich des Zuströmkanals (10) in einem Abstand (a) nebeneinander angeordnet sind, der in der Größenordnung des Durchmessers einer Drallkammer liegt.Doppeldrallsprühdüse according to claim 1, characterized in that the axes (7, 8) of the swirl chambers (5, 6) in the region of the inflow channel (10) at a distance (a) are arranged side by side, which is of the order of the diameter of a swirl chamber. Doppeldrallsprühdüse nach Anspruch 1, dadurch gekennzeichnet, dass die Achsen (7, 8) der Drallkammern (5, 6) in einem Winkel (α) zueinander verlaufen, der sich zu der Seite der Austrittsöffnungen (5a, 6a) öffnet.Double impingement spray nozzle according to claim 1, characterized in that the axes (7, 8) of the swirl chambers (5, 6) at an angle (α) to each other, which opens to the side of the outlet openings (5a, 6a). Doppeldrallsprühdüse nach Anspruch 4, dadurch gekennzeichnet, dass der Winkel (α) etwa 20° beträgt.Double-jet spray nozzle according to claim 4, characterized in that the angle (α) is about 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
DE50300967T DE50300967D1 (en) 2003-06-21 2003-06-21 Doppeldrallsprühdüse
DK03014004T DK1491260T3 (en) 2003-06-21 2003-06-21 Double vortex nozzle
ES03014004T ES2244868T3 (en) 2003-06-21 2003-06-21 DOUBLE TURBULENCE SPRAY NOZZLE.
AT03014004T ATE301502T1 (en) 2003-06-21 2003-06-21 DOUBLE SWIRL SPRAY NOZZLE
SI200330065T SI1491260T1 (en) 2003-06-21 2003-06-21 Double swirl nozzle
EP03014004A EP1491260B1 (en) 2003-06-21 2003-06-21 Double swirl nozzle
KR1020040045828A KR101100856B1 (en) 2003-06-21 2004-06-19 Double twist spray nozzle
JP2004182910A JP4188881B2 (en) 2003-06-21 2004-06-21 Double swivel spray nozzle
US10/872,817 US7175109B2 (en) 2003-06-21 2004-06-21 Double-swirl spray nozzle
CNB2004100594006A CN100512973C (en) 2003-06-21 2004-06-21 Double-swirl 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 true EP1491260A1 (en) 2004-12-29
EP1491260B1 EP1491260B1 (en) 2005-08-10

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

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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)
SI (1) SI1491260T1 (en)
ZA (1) ZA200404876B (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9242256B2 (en) 2007-07-17 2016-01-26 S.C. Johnson & Son, Inc. Aerosol dispenser assembly having VOC-free propellant and dispensing mechanism therefor
CN102917802B (en) 2010-04-02 2016-03-02 斯得-莱特工业有限责任公司 Air suction 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
DE102015207741A1 (en) 2015-04-28 2016-11-03 Lechler Gmbh spray nozzle
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
CN106140742B (en) * 2016-08-29 2019-07-30 潍柴动力股份有限公司 A kind of vortex purging device for pipeline
JP6437978B2 (en) * 2016-10-06 2018-12-12 レヒラー ゲゼルシャフト ミット ベシュレンクテル ハフツング Method for generating a spray nozzle and a non-circular spray cone
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
JP6802469B2 (en) * 2018-10-30 2020-12-16 ビック工業株式会社 Liquid discharge device
JP6868144B1 (en) * 2020-05-25 2021-05-12 株式会社スギノマシン nozzle

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR882080A (en) * 1942-01-09 1943-05-17 Spray device, usable in particular for combating fungal diseases of plants
GB969594A (en) * 1962-05-29 1964-09-09 Clayton Heyes Engineering Comp An improvement in or relating to spraying devices
DE19736761A1 (en) * 1997-08-23 1999-02-25 Lechler Gmbh & Co Kg Scrubber removing gases and particulates from e.g. flue gas flows
DE19758526A1 (en) * 1997-08-23 1999-06-02 Lechler Gmbh & Co Kg Power station gas washer

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US545320A (en) 1895-08-27 Lawn-sprinkler or irrigator
US1156474A (en) * 1913-07-28 1915-10-12 Bert L Gifford Sprinkling or spraying device.
US2484577A (en) * 1945-03-29 1949-10-11 Monarch Mfg Works Inc Double orifice solid cone spray nozzle
JPS5572605A (en) 1978-11-22 1980-05-31 Hitachi Ltd Double stream type nozzle box
DE10033781C1 (en) 2000-07-12 2001-12-06 Lechler Gmbh & Co Kg Dual rotation spray jet has common feed channel leading tangentially to opposing rotation chambers on either side of its center axis

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR882080A (en) * 1942-01-09 1943-05-17 Spray device, usable in particular for combating fungal diseases of plants
GB969594A (en) * 1962-05-29 1964-09-09 Clayton Heyes Engineering Comp An improvement in or relating to spraying devices
DE19736761A1 (en) * 1997-08-23 1999-02-25 Lechler Gmbh & Co Kg Scrubber removing gases and particulates from e.g. flue gas flows
DE19758526A1 (en) * 1997-08-23 1999-06-02 Lechler Gmbh & Co Kg Power station gas washer

Also Published As

Publication number Publication date
ES2244868T3 (en) 2005-12-16
SI1491260T1 (en) 2005-10-31
KR101100856B1 (en) 2012-01-02
CN1572374A (en) 2005-02-02
DE50300967D1 (en) 2005-09-15
US7175109B2 (en) 2007-02-13
EP1491260B1 (en) 2005-08-10
JP2005007394A (en) 2005-01-13
ZA200404876B (en) 2005-04-26
KR20040111189A (en) 2004-12-31
CN100512973C (en) 2009-07-15
JP4188881B2 (en) 2008-12-03
DK1491260T3 (en) 2005-11-14
US20050017093A1 (en) 2005-01-27
ATE301502T1 (en) 2005-08-15

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