EP3178566A1 - Water nozzle - Google Patents

Water nozzle Download PDF

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Publication number
EP3178566A1
EP3178566A1 EP16002205.9A EP16002205A EP3178566A1 EP 3178566 A1 EP3178566 A1 EP 3178566A1 EP 16002205 A EP16002205 A EP 16002205A EP 3178566 A1 EP3178566 A1 EP 3178566A1
Authority
EP
European Patent Office
Prior art keywords
water
jet
flow head
flow
water 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.)
Granted
Application number
EP16002205.9A
Other languages
German (de)
French (fr)
Other versions
EP3178566B1 (en
Inventor
Reinhard Wesselmeier
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.)
Oase Pumpen Wuebker Soehne GmbH and Co Maschinenfabrik
Original Assignee
Oase Pumpen Wuebker Soehne GmbH and Co Maschinenfabrik
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Publication date
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Publication of EP3178566A1 publication Critical patent/EP3178566A1/en
Application granted granted Critical
Publication of EP3178566B1 publication Critical patent/EP3178566B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/12—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means capable of producing different kinds of discharge, e.g. either jet or spray
    • 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
    • B05B1/22—Spouts
    • 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
    • B05B1/02—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape
    • B05B1/06—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape in annular, tubular or hollow conical form
    • 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
    • B05B1/16—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 having selectively- effective outlets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/26—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with means for mechanically breaking-up or deflecting the jet after discharge, e.g. with fixed deflectors; Breaking-up the discharged liquid or other fluent material by impinging jets
    • B05B1/262—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with means for mechanically breaking-up or deflecting the jet after discharge, e.g. with fixed deflectors; Breaking-up the discharged liquid or other fluent material by impinging jets with fixed deflectors
    • B05B1/265—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with means for mechanically breaking-up or deflecting the jet after discharge, e.g. with fixed deflectors; Breaking-up the discharged liquid or other fluent material by impinging jets with fixed deflectors the liquid or other fluent material being symmetrically deflected about the axis of the nozzle
    • 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
    • B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
    • B05B1/3033—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head
    • B05B1/3073—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a deflector acting as a valve in co-operation with the outlet orifice
    • 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
    • B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
    • B05B1/3033—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head
    • B05B1/308—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element comprising both a lift valve and a deflector
    • 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B17/00—Apparatus for spraying or atomising liquids or other fluent materials, not covered by the preceding groups
    • B05B17/08—Fountains
    • B05B17/085—Fountains designed to produce sheets or curtains of liquid, e.g. water walls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
    • B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
    • B05B9/0403—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump with pumps for liquids or other fluent material
    • B05B9/0406—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump with pumps for liquids or other fluent material with several pumps

Definitions

  • the invention relates to a water nozzle according to the preamble of claim 1.
  • a water nozzle is from the DE 10 2013 005 972 A1 known. It has at least two separate water ducts, through which also separately controllable different water volume flows are directed to a flow head. At the flow head, the water volume flows combine to form a ring stream. Depending on which of the volumetric flows is greater, this results in a slender, bundled ring beam or a more or less expanded ring beam.
  • the invention is therefore an object of the invention to provide a water nozzle with cut-off function for the water jet available, which is structurally simplified even at high water pressures and thus large throw lengths of the water jet can be used.
  • This object is achieved by a water nozzle with the features of claim 1.
  • a ring stream is generated from at least two water volume flows supplied via separate water guides on the flow head. This is formed by varying the water volume flows either bundled as a narrow beam substantially or widened funnel-shaped.
  • the water nozzle according to the invention also has a deflecting element, which has a central outlet opening arranged at a distance from the flow head in the jet direction downstream of the flow head. Its diameter is dimensioned so that a slender jet can pass unhindered, while an expanded jet bounces against a deflector which extends around the outlet opening.
  • a slender ring beam can be changed abruptly to a widened beam, which as it were cut off no more water jet emerges from the outlet opening, since the expanded jet can not pass this and is deflected in the deflection.
  • the deflection device comprises a central body with expanding in the flow direction outside diameter, in the middle of which the outlet opening is located.
  • the enlarging outer diameter forms baffle and guide walls, which achieve a deflection of a widened water jet as strong as possible and thus also recoil and low-spray.
  • This central element can be conically shaped in the lower region, in the manner of a bottle stopper.
  • the water nozzle preferably has a guide tube for the annular jet extending from the flow head to the outlet opening. This prevents rebounding or dripping water or other external influences, such as wind, from influencing the ring beam, in particular if it should be designed as a slender jet for passage out of the outlet opening.
  • the deflecting element may preferably have a hood or be configured overall in a substantially hood-shaped manner, wherein the hood extends at a distance around the flow head.
  • the hood can be shaped like a cylinder pot, with the outlet opening in the upper hood center or in the "pot bottom".
  • the hood-like design redirects rebounding and diverted water of the funnel-shaped expanded jet back into a rear / lower area and channels with it water flows, so that when cut / deflected jet around the water outlet as possible no water flow is visible.
  • the hood extends behind the flow head in the flow direction, so that it partially surrounds the water ducts. This redirects the diverted stream of water back to an area that normally escapes viewers' insights. In addition, this extended deflection of the recycled water sufficient speed withdrawn, so that no recoil turbulence occur.
  • the water nozzle is mounted by means of a holder such that as few visible parts of the water nozzle protrude from the surface of an ambient medium.
  • this surface is a water surface
  • flow head and water outlet are to be arranged above the water surface, while the rear end of the hood extends to below the water surface, so that returning water of the fanned beam is passed under the water surface and thus remains invisible to the viewer.
  • the surrounding medium is, for example, a gravel bed
  • the nozzle can be arranged such that only the water outlet protrudes above the surface of the gravel bed, while the hood dips back into the gravel bed with its rear end.
  • the hood need not be longer than the distance between the flow head and the water outlet, but only cover the visible, protruding area.
  • FIG. 1 illustrated water nozzle is in the illustrated application with a holder 1 in a surrounding medium 2 of a water reservoir arranged such that an outlet opening 3 of the water nozzle from the surface 4 of the water reservoir 2 emerges.
  • the water nozzle is generated illustration 1 a slender beam 5 in a large parabola.
  • Fig. 2 shows the nozzle Fig. 1 on average, but without water reservoir and without water flow rates.
  • the function of the nozzle is in the Fig. 3 and 4 illustrated.
  • the nozzle has a first port 11 for a first pump, not shown.
  • This pumps a water volume flow V1 in an annular water guide 6, which is formed by the gap between an inner tube 7 and an outer tube 8 of the nozzle.
  • a second pump likewise not shown, pumps a water volume flow V2 via a second connection 12 into the further water flow, which is formed by the inner tube 7.
  • a flow head 13 which is essentially formed of an outer flow control arm 14 and an inner flow control arm 15.
  • Both flow control arms 14, 15 are preferably adjustable and combine the water volume flows V1 and V2 at the exit from the flow head 13 to a sharply defined annular beam 5.
  • the adjustability of the flow guide 14, 15 serves to Einjust réelle the ring beam 5. This extends without contact through a guide tube 17 to a deflecting element 18, which is formed in the embodiment shown here as a hood. This comprises the arranged in the beam direction S after the flow head 13 and spaced from the flow head 13 central outlet opening 3, through which the ring beam 5 in Fig. 3 exits unhindered.
  • Fig. 4 shows an alternative operating state of the water nozzle.
  • the volumetric flow V2 was increased relative to the volumetric flow V1 or the volumetric flow V1 was reduced compared to the volumetric flow V2.
  • a funnel-shaped flared annular jet 5 ' is formed at the flow head 13. This can not pass the outlet opening 3 due to its expansion. Rather, the widened ring beam 5 'is deflected by means of a deflection device, which is part of the deflecting element 18 or in this case the hood.
  • the jet bounces 5 'against baffle and guide walls 22 of a central body 21 and from there, if necessary, with further deflection by the closed end face 28 and the side walls 38 of the hood 18 back in the direction of the arrows R.
  • the hood 18 extends behind the flow head 13 as viewed in the flow direction S.
  • Fig. 1 shows that in particular a return of the water backflow R under the surface 4 of an ambient medium 2 or water reservoir takes place.
  • the water nozzle according to the invention can be operated with high water pressures, resulting in large throw heights or widths for the water jet 5.
  • V1 and V2 further effects are possible, such as e.g. a variation of the throw or the generation of a slightly wavy beam.
  • pumps are suitable for this, whose speed can be controlled electronically.

Abstract

Eine Wasserdüse ist mit zumindest zwei separaten Wasserführungen (6, 7) ausgestattet, durch die steuerbar unterschiedliche Wasservolumenströme (V1, V2) sich an einem Strömungskopf (13) zu einem Ringstrahl (5, 5') vereinend leitbar sind, wobei durch Steuerung der Volumenströme (V1, V2) alternativ ein schlanker Strahl (5) oder zumindest ein aufgeweiteter Strahl (5') erzeugbar ist. Erfindungsgemäß hat die Düse ein Umlenkelement (18), das eine in Strahlrichtung (S) nach dem Strömungskopf (13) angeordnete und von dem Strömungskopf (13) beabstandete zentrale Auslassöffnung (3) aufweist, deren Durchmesser so ausgestaltet ist, dass sie den schlanken Strahl (5) durchlässt, während ein aufgeweiteter Strahl (5') gegen eine die Auslassöffnung (3) umgebende Umlenkeinrichtung (22, 28, 38) prallt.A water nozzle is equipped with at least two separate water guides (6, 7) through which controllably different water volume flows (V1, V2) can be combined to form a ring jet (5, 5 ') at a flow head (13), wherein the flow rates are controlled by controlling the volume flows (V1, V2) alternatively, a slender beam (5) or at least one expanded beam (5 ') can be generated. According to the invention, the nozzle has a deflecting element (18) which has a central outlet opening (3) arranged in the jet direction (S) downstream of the flow head (13) and spaced from the flow head (13), the diameter of which is such that it forms the slender jet (5) passes, while an expanded beam (5 ') against a the discharge opening (3) surrounding deflecting means (22, 28, 38) bounces.

Description

Die Erfindung betrifft eine Wasserdüse nach dem Oberbegriff des Anspruchs 1. Eine derartige Wasserdüse ist aus der DE 10 2013 005 972 A1 bekannt. Sie verfügt über mindestens zwei separate Wasserführungen, durch die ebenfalls separat steuerbar unterschiedliche Wasservolumenströme zu einem Strömungskopf geleitet werden. Am Strömungskopf vereinen sich die Wasservolumenströme zu einem Ringstrahl. Abhängig davon, welcher der Volumenströme größer ist, entsteht dabei ein schlanker, gebündelter Ringstrahl oder ein mehr oder minder aufgeweiteter Ringstrahl.The invention relates to a water nozzle according to the preamble of claim 1. Such a water nozzle is from the DE 10 2013 005 972 A1 known. It has at least two separate water ducts, through which also separately controllable different water volume flows are directed to a flow head. At the flow head, the water volume flows combine to form a ring stream. Depending on which of the volumetric flows is greater, this results in a slender, bundled ring beam or a more or less expanded ring beam.

In der Praxis besteht zur Erzeugung von Wasserspieleffekten der Bedarf an Wasserdüsen, die den erzeugten Wasserstrahl abrupt abschneiden können. Dies wird durch mechanische Abschneidevorrichtungen, sogenannte Shutter, realisiert, die die Wasserführung innerhalb der Düseneinrichtung absperren und einen Wasseraustritt temporär unterbinden.In practice, there is a need for water jets to produce water play effects that can cut off the generated water jet abruptly. This is realized by means of mechanical cutting devices, so-called shutters, which shut off the flow of water within the nozzle device and temporarily prevent water leakage.

In der DE 10 2004 006 796 A1 wird eine andere Ausführungsform beschrieben, bei der über unabhängig schaltbare Luftzufuhrventile ein Wasserstrahl in unterschiedliche Kanäle geleitet werden kann, wodurch ein ähnlicher Effekt erzeugbar ist.In the DE 10 2004 006 796 A1 another embodiment is described in which a water jet can be passed into different channels via independently switchable air supply valves, whereby a similar effect can be generated.

Beide vorbekannten Ausführungen sind jedoch hinsichtlich der zu erzeugenden Wasserstrahlwurfweiten beschränkt, da die bekannten Vorrichtungen bei hohen Wasserdrücken eine sehr teure und aufwendige Konstruktion benötigen, die obendrein wartungsintensiv und verschleißanfällig ist. Die Ausführungsform der DE 10 2004 006 796 A1 unterliegt darüber hinaus physikalischen Beschränkungen hinsichtlich des verwendbaren Wasserdrucks.However, both prior art designs are limited in terms of water jet throwing widths to be generated, since the known devices at high Water pressures require a very expensive and expensive construction, which is also maintenance-intensive and susceptible to wear. The embodiment of the DE 10 2004 006 796 A1 is also subject to physical limitations in terms of usable water pressure.

Der Erfindung liegt daher die Aufgabe zugrunde, eine Wasserdüse mit Abschneidefunktion für den Wasserstrahl zur Verfügung zu stellen, die konstruktiv vereinfacht auch bei hohen Wasserdrücken und somit großen Wurfweiten des Wasserstrahls einsetzbar ist. Diese Aufgabe wird durch eine Wasserdüse mit den Merkmalen des Anspruchs 1 gelöst.The invention is therefore an object of the invention to provide a water nozzle with cut-off function for the water jet available, which is structurally simplified even at high water pressures and thus large throw lengths of the water jet can be used. This object is achieved by a water nozzle with the features of claim 1.

Wie in der DE 10 2013 005 972 A1 wird zunächst aus zumindest zwei über separate Wasserführungen zugeführten Wasservolumenströmen am Strömungskopf ein Ringstrahl erzeugt. Dieser ist durch Variierung der Wasservolumenströme entweder als schlanker Strahl im Wesentlichen gebündelt ausgebildet oder trichterförmig aufgeweitet. Die erfindungsgemäße Wasserdüse verfügt darüber hinaus über ein Umlenkelement, das mit Abstand vom Strömungskopf in Strahlrichtung nach dem Strömungskopf angeordnet eine zentrale Auslassöffnung aufweist. Deren Durchmesser ist so bemessen, dass ein schlanker Strahl ungehindert hindurchtreten kann, während ein aufgeweiteter Strahl gegen eine Umlenkeinrichtung prallt, die sich um die Auslassöffnung herum erstreckt. Durch Steuerung bzw. Variierung der Wasservolumenströme kann somit ein schlanker Ringstrahl schlagartig zu einem aufgeweiteten Strahl verändert werden, wodurch gleichsam abgeschnitten kein Wasserstrahl mehr aus der Auslassöffnung austritt, da der aufgeweitete Strahl diese nicht passieren kann und in der Umlenkeinrichtung umgelenkt wird.Like in the DE 10 2013 005 972 A1 Initially, a ring stream is generated from at least two water volume flows supplied via separate water guides on the flow head. This is formed by varying the water volume flows either bundled as a narrow beam substantially or widened funnel-shaped. The water nozzle according to the invention also has a deflecting element, which has a central outlet opening arranged at a distance from the flow head in the jet direction downstream of the flow head. Its diameter is dimensioned so that a slender jet can pass unhindered, while an expanded jet bounces against a deflector which extends around the outlet opening. By controlling or varying the water volume flows thus a slender ring beam can be changed abruptly to a widened beam, which as it were cut off no more water jet emerges from the outlet opening, since the expanded jet can not pass this and is deflected in the deflection.

Vorzugsweise umfasst die Umlenkeinrichtung einen Zentralkörper mit sich in Strömungsrichtung erweiterndem Außendurchmesser, in dessen Mitte sich die Auslassöffnung befindet. Der sich vergrößernde Außendurchmesser bildet Prall- und Führungswände, die eine Umlenkung eines aufgeweiteten Wasserstrahls möglichst kraft- und damit auch rückschlag- und spritzarm erreichen. Dieses Zentralelement kann im unteren Bereich konisch, nach Art eines Flaschenstopfens, geformt sein.Preferably, the deflection device comprises a central body with expanding in the flow direction outside diameter, in the middle of which the outlet opening is located. The enlarging outer diameter forms baffle and guide walls, which achieve a deflection of a widened water jet as strong as possible and thus also recoil and low-spray. This central element can be conically shaped in the lower region, in the manner of a bottle stopper.

Bevorzugt weist die Wasserdüse ein sich vom Strömungskopf zur Auslassöffnung erstreckendes Führungsrohr für den Ringstrahl auf. Dieses verhindert, dass von der Umlenkeinrichtung abprallendes oder herabtropfendes Wasser oder andere Außeneinflüsse wie beispielsweise Wind den Ringstrahl beeinflussen, insbesondere, wenn dieser als schlanker Strahl zum Durchtritt aus der Auslassöffnung ausgebildet sein sollte.The water nozzle preferably has a guide tube for the annular jet extending from the flow head to the outlet opening. This prevents rebounding or dripping water or other external influences, such as wind, from influencing the ring beam, in particular if it should be designed as a slender jet for passage out of the outlet opening.

Das Umlenkelement kann vorzugsweise eine Haube aufweisen bzw. insgesamt im Wesentlichen haubenförmig ausgestaltet sein, wobei sich die Haube mit Abstand um den Strömungskopf herum erstreckt. Die Haube kann zylindertopfartig geformt sein, wobei sich die Auslassöffnung in der oberen Haubenmitte bzw. im "Topfboden" befindet. Die haubenartige Gestaltung lenkt abprallendes und umgeleitetes Wasser des trichterförmig aufgeweiteten Strahls in einen hinteren / unteren Bereich zurück und kanalisiert damit Wasserflüsse, so dass bei abgeschnittenem / umgelenktem Strahl um den Wasserauslass herum möglichst kein Wasserfluss sichtbar ist.The deflecting element may preferably have a hood or be configured overall in a substantially hood-shaped manner, wherein the hood extends at a distance around the flow head. The hood can be shaped like a cylinder pot, with the outlet opening in the upper hood center or in the "pot bottom". The hood-like design redirects rebounding and diverted water of the funnel-shaped expanded jet back into a rear / lower area and channels with it water flows, so that when cut / deflected jet around the water outlet as possible no water flow is visible.

In einer weiterhin bevorzugten Ausführungsform erstreckt sich die Haube in Strömungsrichtung hinter den Strömungskopf zurück, so dass sie die Wasserführungen teilweise umgibt. Damit wird der umgeleitete Wasserstrahl in einen Bereich zurückgeleitet, der sich im Normalfall den Einblicken von Betrachtern entzieht. Außerdem wird durch diese verlängerte Umlenkung dem zurückgeführten Wasser ausreichend Geschwindigkeit entzogen, so dass keine Rückstoßturbulenzen auftreten. Besonders vorteilhaft ist eine derartige Ausführung dann, wenn die Wasserdüse mittels einer Halterung derart montiert ist, dass möglichst wenig sichtbare Teile der Wasserdüse aus der Oberfläche eines Umgebungsmediums herausragen. Ist diese Oberfläche eine Wasseroberfläche, so sind Strömungskopf und Wasserauslass oberhalb der Wasseroberfläche anzuordnen, während sich das rückwärtige Ende der Haube bis unter die Wasseroberfläche erstreckt, so dass zurückfließendes Wasser des aufgefächerten Strahls unter die Wasseroberfläche geleitet wird und damit für den Betrachter unsichtbar bleibt. Ist das Umgebungsmedium hingegen beispielsweise ein Kiesbett, kann die Düse so angeordnet werden, dass nur der Wasserauslass über die Oberfläche des Kiesbettes herausragt, während die Haube wieder mit ihrem rückwärtigen Ende in das Kiesbett eintaucht. In diesem Fall muss die Haube nicht länger als der Abstand zwischen Strömungskopf und Wasserauslass sein, sondern lediglich den sichtbaren, herausragenden Bereich abdecken.In a further preferred embodiment, the hood extends behind the flow head in the flow direction, so that it partially surrounds the water ducts. This redirects the diverted stream of water back to an area that normally escapes viewers' insights. In addition, this extended deflection of the recycled water sufficient speed withdrawn, so that no recoil turbulence occur. Such a design is particularly advantageous if the water nozzle is mounted by means of a holder such that as few visible parts of the water nozzle protrude from the surface of an ambient medium. If this surface is a water surface, then flow head and water outlet are to be arranged above the water surface, while the rear end of the hood extends to below the water surface, so that returning water of the fanned beam is passed under the water surface and thus remains invisible to the viewer. If, for example, the surrounding medium is, for example, a gravel bed, the nozzle can be arranged such that only the water outlet protrudes above the surface of the gravel bed, while the hood dips back into the gravel bed with its rear end. In this case, the hood need not be longer than the distance between the flow head and the water outlet, but only cover the visible, protruding area.

Weitere Vorteile und Einzelheiten ergeben sich aus den Unteransprüchen und einem in den Zeichnungen dargestellten Ausführungsbeispiel, das im Folgen beschrieben wird; es zeigen:

Fig. 1
eine erfindungsgemäße Wasserdüse im Einsatz, einen parabelförmigen Wasserstrahl erzeugend,
Fig. 2
einen Längsschnitt durch die Wasserdüse aus Fig. 1, ohne abgebildete Wasservolumenströme,
Fig. 3
einen Schnitt in Richtung III - III durch den Gegenstand aus Fig. 2 ohne Standfuß, jedoch mit dargestellten Wasservolumenströmen und
Fig. 4
den Gegenstand aus Fig. 3 mit aufgeweitetem, abgelenktem Wasserstrahl.
Further advantages and details emerge from the dependent claims and an embodiment shown in the drawings, which will be described in the following; show it:
Fig. 1
a water nozzle according to the invention in use, producing a parabolic water jet,
Fig. 2
a longitudinal section through the water nozzle Fig. 1 , without imaged water flow rates,
Fig. 3
make a cut in the direction of III - III through the object Fig. 2 without pedestal, but with illustrated water flow rates and
Fig. 4
the object out Fig. 3 with expanded, deflected water jet.

Die in Fig. 1 dargestellte Wasserdüse ist beim abgebildeten Anwendungszweck mit einer Halterung 1 in einem Umgebungsmedium 2 eines Wasserreservoirs derart angeordnet, dass eine Auslassöffnung 3 der Wasserdüse aus der Oberfläche 4 des Wasserreservoirs 2 hervortritt. Die Wasserdüse erzeugt auf Abbildung 1 einen schlanken Strahl 5 in einer großen Wurfparabel.In the Fig. 1 illustrated water nozzle is in the illustrated application with a holder 1 in a surrounding medium 2 of a water reservoir arranged such that an outlet opening 3 of the water nozzle from the surface 4 of the water reservoir 2 emerges. The water nozzle is generated illustration 1 a slender beam 5 in a large parabola.

Fig. 2 zeigt die Düse aus Fig. 1 im Schnitt, jedoch ohne Wasserreservoir und ohne Wasservolumenströme. Die Funktion der Düse wird in den Fig. 3 und 4 veranschaulicht. Fig. 2 shows the nozzle Fig. 1 on average, but without water reservoir and without water flow rates. The function of the nozzle is in the Fig. 3 and 4 illustrated.

In den Funktionsprinzipskizzen der Fig. 3 und 4 hat die Düse einen ersten Anschluss 11 für eine nicht dargestellte erste Pumpe. Diese pumpt einen Wasservolumenstrom V1 in eine ringförmige Wasserführung 6, die durch den Zwischenraum zwischen einem Innenrohr 7 und einem Außenrohr 8 der Düse gebildet wird. Gleichzeitig pumpt eine ebenfalls nicht dargestellte zweite Pumpe einen Wasservolumenstrom V2 über einen zweiten Anschluss 12 in die weitere Wasserführung, die durch das Innenrohr 7 gebildet wird.In the working principle sketches of the Fig. 3 and 4 the nozzle has a first port 11 for a first pump, not shown. This pumps a water volume flow V1 in an annular water guide 6, which is formed by the gap between an inner tube 7 and an outer tube 8 of the nozzle. At the same time, a second pump, likewise not shown, pumps a water volume flow V2 via a second connection 12 into the further water flow, which is formed by the inner tube 7.

Am vorderen Ende des Innenrohres 7 und Außenrohres 8 befindet sich ein Strömungskopf 13, der im Wesentlichen aus einem äußeren Strömungslenker 14 und einem inneren Strömungslenker 15 gebildet wird. Beide Strömungslenker 14, 15 sind vorzugsweise verstellbar und vereinigen die Wasservolumenströme V1 und V2 am Austritt aus dem Strömungskopf 13 zu einem scharf umgrenzten Ringstrahl 5. Die Verstellbarkeit der Strömungslenker 14, 15 dient dabei der Einjustierung des Ringstrahls 5. Dieser erstreckt sich berührungsfrei durch ein Führungsrohr 17 zu einem Umlenkelement 18, das bei der hier dargestellten Ausführungsform als Haube ausgebildet ist. Diese umfasst die in Strahlrichtung S nach dem Strömungskopf 13 angeordnete und vom Strömungskopf 13 beabstandete zentrale Auslassöffnung 3, durch die der Ringstrahl 5 in Fig. 3 ungehindert austritt.At the front end of the inner tube 7 and outer tube 8 is a flow head 13, which is essentially formed of an outer flow control arm 14 and an inner flow control arm 15. Both flow control arms 14, 15 are preferably adjustable and combine the water volume flows V1 and V2 at the exit from the flow head 13 to a sharply defined annular beam 5. The adjustability of the flow guide 14, 15 serves to Einjustierung the ring beam 5. This extends without contact through a guide tube 17 to a deflecting element 18, which is formed in the embodiment shown here as a hood. This comprises the arranged in the beam direction S after the flow head 13 and spaced from the flow head 13 central outlet opening 3, through which the ring beam 5 in Fig. 3 exits unhindered.

Fig. 4 zeigt einen alternativen Betriebszustand der Wasserdüse. Dabei wurde der Volumenstrom V2 gegenüber dem Volumenstrom V1 erhöht oder der Volumenstrom V1 gegenüber dem Volumenstrom V2 vermindert. Dadurch bildet sich am Strömungskopf 13 ein trichterförmig aufgeweiteter Ringstrahl 5'. Dieser kann aufgrund seiner Aufweitung die Auslassöffnung 3 nicht passieren. Der aufgeweitete Ringstrahl 5' wird vielmehr mittels einer Umlenkeinrichtung umgelenkt, die Teil des Umlenkelementes 18 bzw. hier der Haube ist. So prallt der Strahl 5' gegen Prall- und Führungswände 22 eines Zentralkörpers 21 und von dort ggf. unter weiterer Umlenkung durch die geschlossene Stirnseite 28 und die Seitenwandungen 38 der Haube 18 zurück in Richtung der Pfeile R. Fig. 4 shows an alternative operating state of the water nozzle. In this case, the volumetric flow V2 was increased relative to the volumetric flow V1 or the volumetric flow V1 was reduced compared to the volumetric flow V2. As a result, a funnel-shaped flared annular jet 5 'is formed at the flow head 13. This can not pass the outlet opening 3 due to its expansion. Rather, the widened ring beam 5 'is deflected by means of a deflection device, which is part of the deflecting element 18 or in this case the hood. Thus, the jet bounces 5 'against baffle and guide walls 22 of a central body 21 and from there, if necessary, with further deflection by the closed end face 28 and the side walls 38 of the hood 18 back in the direction of the arrows R.

Bei der bevorzugten Ausführungsform erstreckt sich die Haube 18 in Strömungsrichtung S betrachtet hinter den Strömungskopf 13 zurück. Fig. 1 zeigt, dass so insbesondere eine Rückführung des Wasserrückstroms R unter die Oberfläche 4 eines Umgebungsmediums 2 bzw. Wasserreservoirs erfolgt.In the preferred embodiment, the hood 18 extends behind the flow head 13 as viewed in the flow direction S. Fig. 1 shows that in particular a return of the water backflow R under the surface 4 of an ambient medium 2 or water reservoir takes place.

Durch die Modulation der Volumenströme V1 und V2 zwischen den Betriebszuständen der Fig. 3 und Fig. 4 lässt sich insoweit durch eine Erhöhung des Volumenstroms V2 oder eine Verringerung des Volumenstroms V1 gegenüber Fig. 3 der in Fig. 4 dargestellte aufgeweitete Ringstrahl 5' erzeugen. Dieser verlässt dann nicht mehr die zentrale Auslassöffnung 3 der Düse und wirkt mithin für den Betrachter wie abgeschnitten.By modulating the volume flows V1 and V2 between the operating states of the Fig. 3 and Fig. 4 can be compared to this extent by increasing the volume flow V2 or a reduction of the volume flow V1 Fig. 3 the in Fig. 4 illustrated expanded annular beam 5 'produce. This then no longer leaves the central outlet opening 3 of the nozzle and thus acts as cut off for the viewer.

Die erfindungsgemäße Wasserdüse kann mit hohen Wasserdrücken betrieben werden, wodurch sich große Wurfhöhen bzw. -weiten für den Wasserstrahl 5 ergeben. Außerdem sind durch die Variierung der Volumenströme V1 und V2 noch weitere Effekte möglich, wie z.B. eine Variation der Wurfweite oder die Erzeugung eines leicht welligen Strahls. Dafür sind insbesondere Pumpen geeignet, deren Drehzahl sich elektronisch regeln lässt.The water nozzle according to the invention can be operated with high water pressures, resulting in large throw heights or widths for the water jet 5. In addition, by varying the volume flows V1 and V2 further effects are possible, such as e.g. a variation of the throw or the generation of a slightly wavy beam. In particular pumps are suitable for this, whose speed can be controlled electronically.

Claims (5)

Wasserdüse mit zumindest zwei separaten Wasserführungen (6, 7), durch die steuerbar unterschiedliche Wasservolumenströme (V1, V2) sich an einem Strömungskopf (13) zu einem Ringstrahl (5, 5') vereinend leitbar sind, wobei durch Steuerung der Volumenströme (V1, V2) alternativ ein schlanker Strahl (5) oder zumindest ein aufgeweiteter Strahl (5') erzeugbar ist, gekennzeichnet durch ein Umlenkelement (18), das eine in Strahlrichtung (S) nach dem Strömungskopf (13) angeordnete und von dem Strömungskopf (13) beabstandete zentrale Auslassöffnung (3) aufweist, deren Durchmesser so ausgestaltet ist, dass sie den schlanken Strahl (5) durchlässt, während ein aufgeweiteter Strahl (5') gegen eine die Auslassöffnung (3) umgebende Umlenkeinrichtung (22, 28, 38) prallt.Water nozzle with at least two separate water ducts (6, 7) through which controllably different water volume flows (V1, V2) can be combined to form a ring jet (5, 5 ') at a flow head (13), wherein by controlling the volume flows (V1, V2) alternatively a slender jet (5) or at least an expanded jet (5 ') can be generated, characterized by a deflecting element (18) arranged in the jet direction (S) downstream of the flow head (13) and from the flow head (13). spaced central outlet opening (3), whose diameter is designed so that it passes through the slender jet (5), while an expanded beam (5 ') against a the discharge opening (3) surrounding deflecting means (22, 28, 38). Wasserdüse nach Anspruch 1, gekennzeichnet durch ein sich von dem Strömungskopf (13) zur Auslassöffnung (3) erstreckendes Führungsrohr (17) für den Ringstrahl (5, 5').Water nozzle according to claim 1, characterized by a guide tube (17) for the annular jet (5, 5 ') extending from the flow head (13) to the outlet opening (3). Wasserdüse nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, dass das Umlenkelement (18) eine Haube aufweist, die sich mit Abstand um den Strömungskopf (13) herum erstreckt.Water nozzle according to one of the preceding claims, characterized in that the deflecting element (18) has a hood which extends at a distance around the flow head (13). Wasserdüse nach Anspruch 3, dadurch gekennzeichnet, dass die Haube (18) sich in Strömungsrichtung (S) hinter den Strömungskopf (13) zurück die Wasserführungen (6, 7) teilweise umgebend erstreckt.Water nozzle according to claim 3, characterized in that the hood (18) extends in the flow direction (S) behind the flow head (13) back the water guides (6, 7) partially surrounding. Wasserdüse nach Anspruch 4, wobei die Wasserdüse eine Halterung (1) aufweist, mittels der sie derart montierbar ist, dass die Auslassöffnung (3) und gegebenenfalls der Strömungskopf (13) aus einer die Halterung (1) verdeckenden Oberfläche (4) eines Umgebungsmediums (2) herausragt, wobei ein rückwärtiges, offenes Ende der Haube (18) sich bis unter die Oberfläche (4) des Umgebungsmediums (2) erstreckt.A water nozzle according to claim 4, wherein the water nozzle has a holder (1) by means of which it can be mounted such that the outlet opening (3) and optionally the flow head (13) comprise a surface (4) of an ambient medium covering the holder (1) ( 2), wherein a rear, open end of the hood (18) extends below the surface (4) of the surrounding medium (2).
EP16002205.9A 2015-12-07 2016-10-13 Water nozzle Active EP3178566B1 (en)

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WO2019099492A1 (en) 2017-11-14 2019-05-23 Dow Global Technologies Llc Filtering fluid dispensing device
TWI712775B (en) * 2018-06-06 2020-12-11 台灣積體電路製造股份有限公司 Semiconductor process and semiconductor equipment

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CN107042168B (en) 2019-04-12
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US9855567B2 (en) 2018-01-02
US20170157624A1 (en) 2017-06-08
EP3178566B1 (en) 2018-01-10

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