EP2110063A1 - Nozzle system - Google Patents
Nozzle system Download PDFInfo
- Publication number
- EP2110063A1 EP2110063A1 EP09004464A EP09004464A EP2110063A1 EP 2110063 A1 EP2110063 A1 EP 2110063A1 EP 09004464 A EP09004464 A EP 09004464A EP 09004464 A EP09004464 A EP 09004464A EP 2110063 A1 EP2110063 A1 EP 2110063A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- spray tube
- spray
- nozzle
- flow
- nozzles
- 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.)
- Withdrawn
Links
- 238000004140 cleaning Methods 0.000 claims abstract description 24
- 239000007788 liquid Substances 0.000 claims abstract description 21
- 238000005507 spraying Methods 0.000 claims abstract description 4
- 239000007921 spray Substances 0.000 claims description 107
- 238000004049 embossing Methods 0.000 claims description 6
- 238000005192 partition Methods 0.000 claims description 6
- 238000004851 dishwashing Methods 0.000 claims 1
- 239000000243 solution Substances 0.000 description 16
- 210000002105 tongue Anatomy 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 238000013459 approach Methods 0.000 description 2
- 239000011538 cleaning material Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000001914 calming effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/42—Details
- A47L15/4278—Nozzles
-
- 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
- B05B1/20—Arrangements of several outlets along elongated bodies, e.g. perforated pipes or troughs, e.g. spray booms; Outlet elements therefor
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/14—Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
- A47L15/00—Washing or rinsing machines for crockery or tableware
- A47L15/24—Washing or rinsing machines for crockery or tableware with movement of the crockery baskets by conveyors
- A47L15/247—Details specific to conveyor-type machines, e.g. curtains
Definitions
- nozzles are used to distribute the cleaning liquid. These nozzles are generally arranged in plural on a spray pipe having an oblong appearance in the axial direction.
- nozzles for spraying the cleaning liquid on the material to be cleaned are used.
- the nozzles are generally arranged in a greater number on the top or bottom of a generally elongated spray tube or spray arm.
- the rinsing liquid generally flows in on one side and flows to the nozzles, which are arranged one after the other in the longitudinal direction of the spray pipe.
- Spray arms are often designed so that they have in the middle a bearing point, which allows a rotational movement of the arm, wherein symmetrically from the bearing point of two or more sections, also called wings, extend, at which the individual nozzle openings are formed.
- the supply of the nozzles with cleaning liquid takes place centrally from the bearing point of the spray arm or the spray tube.
- other embodiments and types of storage are conceivable.
- the spray systems mentioned have the task or function, the cleaning liquid in predetermined spray patterns, ie as fan beams in likewise predetermined directions, for example, orthogonal to the longitudinal axis of the spray tube or of the spray arm or spray arm.
- the required required beam shape and beam direction is generally determined in experiments during the development of the dishwasher and then set.
- the beam formation should be maintained unchanged, even if the pressure or the volume flow and the resulting flow rate at which the cleaning fluid is supplied to the nozzle systems vary.
- the variation may be required for reasons of dishwasher operation and may amount to ⁇ 20% of the nominal value.
- one and the same type of machine is often built in multiple geometrical dimensions. This also changes the length of the spray pipes, which are generally transversal to the machine, i. in continuous machines are arranged perpendicular to the feed direction of the goods to be cleaned. As the length of such a spray system changes, a different number of nozzles are also introduced into the spray tube. In addition, by requirements of the cleaning material on spray pipes of the same length from machine to machine, a different number of nozzles may be required.
- the said spray pipes with nozzles are usually made or executed so that in a tubular body, distributed over the entire length, a plurality of round or slot-shaped openings are introduced.
- a further embodiment which is known from the prior art, is first to emboss a continuous groove inwardly along the tube and to place the nozzle openings in this groove.
- Another embodiment known from the prior art is that at the points in the spray tube, where a nozzle is required, first a dome is stamped inwardly or outwardly and the nozzle opening is placed in this dome.
- this dome and the placement of the nozzle opening in the dome determines the shape of the dome and its direction. For manufacturing reasons, it is particularly advantageous if each nozzle in the same kind, i. in terms of shape and direction, can be made.
- a spray tube of the type described is operated with the same nozzles, it can be observed that the jets on the nozzles form in different directions along the longitudinal direction of the tube, i. the jets close to the feed point of the cleaning liquid are strongly inclined in the direction of flow of the tube, while the more distant from the tube emerging rays are increasingly less inclined, to the last jet, which forms approximately orthogonal to the tube.
- the present invention has for its object to find a solution with all the nozzles of a spray pipe in the same type and direction in the spray tube, the spray arm or Wascharmeriel can be introduced and Nevertheless, the jet image uniformly and consistently forms, in particular independently from the number of nozzles and the pressure prevailing in the spray tube or spray arm supply pressure of the cleaning liquid.
- the spray tube has a longitudinal extent and has in the longitudinal extent of at least two nozzles for spraying cleaning liquid on to be cleaned Good.
- the flow of the cleaning liquid is deflected in front of at least one nozzle such that a jet emerging through a nozzle opening of the nozzle contains substantially no flow component directed in the longitudinal direction of the spray tube and exits the at least one nozzle substantially orthogonally to the spray tube.
- a flow profile generated by a main flow, with relatively high flow velocity in the longitudinal direction of the spray tube trains is decoupled.
- This can be achieved, for example, by deflecting bodies, behind which a relatively calm flow region is established.
- the cleaning fluid essentially leaves the openings of the nozzles in question without a flow component which is directed in the longitudinal direction of the spray tube or of the spray arm or of the spray arm blade.
- the plane of the spray jet can therefore form substantially orthogonal to the longitudinal axis of the spray tube or spray arm or Sprüharmeriels.
- substantially are meant, for example, deviations of not more than 20 °, preferably not more than 10 ° and particularly preferably not more than 5 °. In order to provide this calming area, there are several technical possibilities which will be described below in connection with the drawings.
- FIG. 1 shows a known from the prior art solution and the adjusting in this, negative effects.
- FIG. 1 shows that the flow 6 in the entire spray tube cross-section 2 from the inflow opening 3 to a last nozzle forms strongly in the longitudinal direction of the spray tube 1.
- the planes of the nozzle jets 7 emerging from the embossings with nozzle openings 4 tend also in this direction and do not form independently orthogonal to the spray tube 1 from.
- a spray pipe 1 which has inwardly embossed calotte 4, in which nozzle openings 4 are introduced directly, for example by punching.
- nose-shaped deflecting bodies 8 are impressed into the jacket of the spray tube 1 in each case in the direction of flow 5 in front of the nozzle openings 4.
- This baffle 8 direct the longitudinal flow 6 from the inlet openings in the nozzle in the direction of the axis of symmetry of the spray tube 1 and produce the desired effect of an uninfluenced by the longitudinal flow 6 flow of the embossed into the jacket of the spray nozzle opening 4.
- the baffles 8 are preferably directly in the Nozzle opening 4 or the embossing for the nozzle 4, however, at a maximum distance introduced into the spray tube 1, which corresponds to twice the height of the deflecting 8.
- the height of the baffle is preferably chosen so that it corresponds to the height of the embossment for the nozzle opening, but is not so high that the supply of subsequent nozzle openings 4, which are embossed in the jacket of the spray tube 1, is not limited.
- the height of the baffles 8 is of the order of 10 mm. If a nozzle or a nozzle opening 4 is provided in the mantle of the spray tube 1, which has no embossing inwards, the height of the baffle 8 is to be selected such that it corresponds to the smallest cross section of the nozzle opening.
- the baffles 8 can be generated, for example, by embossing in the shell of the spray tube 1 from the outside inwards directly in the vicinity of the nozzle opening 4 in the jacket of the spray tube 1. This is associated with the additional advantage that the production of the baffle 8 and the nozzle openings 4 can be done even in one operation, which is very economical. In addition, no additional components are required, which generate additional costs and / or can cause interference during operation.
- baffles 8 are designed as plastic injection molded parts. These baffles 8 designed as plastic injection-molded parts can be fixed in the spray-tube cross-section 2 of the spray-tube 1, for example via resilient or rigidly formed holding elements 9. From the illustration according to FIG. 3 shows that the holding body 9 in the region of the nozzle opening 4 has an opening into which the dome-shaped inwardly embossed wall of the spray tube 1 protrudes and thus fixes the holding element 9 in the axial direction of the Sprührohrquer4.000es 2 of the spray tube 1.
- FIG. 4 The representation according to FIG. 4 is a further embodiment of the solution proposed by the invention can be seen.
- tongues 11 are inserted into the spray tube 1 and narrow the spray tube cross-section 2.
- sheet metal part 10 includes seen in the flow direction of the longitudinal flow 6 at its outflow end the deflection tongue 11, which can be formed as an end face.
- the sheet metal part 10 is rotationally symmetrical and adapted in terms of its outer diameter to the inner diameter of the spray tube 1. Behind the radially inwardly extending deflection tongues 11, a relatively calmed flow region is established, from which adjusts an orthogonal jet to the longitudinal axis of the spray tube 1 in the region of the nozzle opening 4.
- the representation according to FIG. 5 is a further, fourth embodiment of the present invention proposed solution to remove an optimized nozzle system.
- the spray tube 1 is longitudinally divided by at least one partition wall 12 which extends parallel to the jacket of the spray tube 1. This results in the Sprührohrquerites 2 of the spray tube 1 at least two channels.
- An outflow channel 14 is closed at its front side, so that it has no connection to the inflow opening 3 at the beginning of the spray tube 1.
- the nozzle openings 4 are introduced, which are therefore not acted upon directly by the longitudinal flow 6.
- the partition wall 12 is pierced at several points by openings 15, which may for example be designed as circular holes or the like. By this measure, the cleaning liquid from a supply channel 13 passes through the openings 15 in the partition wall 12 in the discharge channel 14. By this measure, similar and uniform jets 7 are also formed on all nozzles, even if all the nozzle openings 4 are made similar.
- retracted partition 12 may be formed, for example, by a simple inserted sheet metal with holes.
- the advantages of this solution are its production-technically impressive simplicity, its robustness and its good effect with respect to the displacement of longitudinal flow components away from the nozzle openings 4 embodied in the jacket of the spray tube 1.
Landscapes
- Nozzles (AREA)
- Washing And Drying Of Tableware (AREA)
Abstract
Description
In Spülmaschinen, sei es in Haushaltsspülmaschinen, sei es bei im gewerblichen Bereich eingesetzten Spülmaschinen, werden Düsen zum Verteilen der Reinigungsflüssigkeit eingesetzt. Diese Düsen sind im Allgemeinen zu mehreren auf einem Sprührohr, welches ein längliches Aussehen in axialer Richtung aufweist, angeordnet.In dishwashers, be it in household dishwashers or in dishwashers used in the commercial sector, nozzles are used to distribute the cleaning liquid. These nozzles are generally arranged in plural on a spray pipe having an oblong appearance in the axial direction.
In Spülmaschinen, sowohl im Haushaltsbereich als auch im gewerblichen Bereich, werden zumeist Düsen zum Aufsprühen der Reinigungsflüssigkeit auf das zu reinigende Gut, so zum Beispiel Geschirr, Gläser, Besteck oder dergleichen, eingesetzt. Die Düsen sind im Allgemeinen in einer größeren Anzahl auf der Oberseite oder Unterseite eines im Allgemeinen länglich ausgebildeten Sprührohres oder Sprüharmes angeordnet. Bei den Sprührohren oder Sprüharmen strömt die Spülflüssigkeit im Allgemeinen an einer Seite ein und fließt zu den Düsen, die in Längsrichtung des Sprührohres hintereinander geschaltet angeordnet sind.In dishwashers, both in the household and in the commercial sector, usually nozzles for spraying the cleaning liquid on the material to be cleaned, such as dishes, glasses, cutlery or the like, are used. The nozzles are generally arranged in a greater number on the top or bottom of a generally elongated spray tube or spray arm. In the case of the spray pipes or spray arms, the rinsing liquid generally flows in on one side and flows to the nozzles, which are arranged one after the other in the longitudinal direction of the spray pipe.
Sprüharme sind häufig so ausgebildet, dass sie in der Mitte eine Lagerstelle aufweisen, die eine Drehbewegung des Arms ermöglicht, wobei sich symmetrisch von der Lagerstelle aus zwei oder mehrere Teilabschnitte, auch Flügel genannt, erstrecken, an denen die einzelnen Düsenöffnungen ausgebildet sind. Bei diesen Ausführungsvarianten von Sprüharmen erfolgt die Versorgung der Düsen mit Reinigungsflüssigkeit zentral von der Lagerstelle des Sprüharmes oder des Sprührohres aus. Auch andere Ausgestaltungen und Arten der Lagerung sind jedoch denkbar.Spray arms are often designed so that they have in the middle a bearing point, which allows a rotational movement of the arm, wherein symmetrically from the bearing point of two or more sections, also called wings, extend, at which the individual nozzle openings are formed. In these embodiments of spray arms, the supply of the nozzles with cleaning liquid takes place centrally from the bearing point of the spray arm or the spray tube. However, other embodiments and types of storage are conceivable.
Die genannten Sprühsysteme haben die Aufgabe beziehungsweise die Funktion, die Reinigungsflüssigkeit in vorbestimmten Spritzbildern, d.h. als Fächerstrahlen in ebenfalls vorbestimmten Richtungen, so zum Beispiel orthogonal zur Längsachse des Sprührohres oder des Sprüharmflügels oder des Sprüharmes, austreten zu lassen. Die erforderliche geforderte Strahlform und Strahlrichtung wird im Allgemeinen in Versuchen während der Entwicklung der Spülmaschinen ermittelt und dann festgelegt. Die Strahlausbildung soll unverändert beibehalten werden, auch wenn der Druck beziehungsweise der Volumenstrom und die daraus resultierende Strömungsgeschwindigkeit, mit der die Reinigungsflüssigkeit den Düsensystemen zugeführt wird, variieren. Die Variation kann aus Gründen des Betriebes der Spülmaschine erforderlich sein und eine Größe von ± 20 % des Nennwertes betragen.The spray systems mentioned have the task or function, the cleaning liquid in predetermined spray patterns, ie as fan beams in likewise predetermined directions, for example, orthogonal to the longitudinal axis of the spray tube or of the spray arm or spray arm. The required required beam shape and beam direction is generally determined in experiments during the development of the dishwasher and then set. The beam formation should be maintained unchanged, even if the pressure or the volume flow and the resulting flow rate at which the cleaning fluid is supplied to the nozzle systems vary. The variation may be required for reasons of dishwasher operation and may amount to ± 20% of the nominal value.
Bei gewerblich eingesetzten Spülmaschinen wird ein und derselbe Maschinentyp häufig in mehreren geometrischen Ausdehnungen gebaut. Damit ändert sich gegebenenfalls auch die Länge der Sprührohre, die im Allgemeinen in Querrichtung der Maschine, d.h. bei Durchlaufmaschinen senkrecht zur Vorschubrichtung des zu reinigenden Gutes angeordnet sind. Wenn sich die Länge eines derartigen Sprühsystems ändert, wird auch eine abweichende Anzahl von Düsen in das Sprührohr eingebracht. Darüber hinaus kann auch durch Anforderungen des Reinigungsgutes auf Sprührohren gleicher Länge von Maschine zu Maschine eine unterschiedliche Anzahl von Düsen erforderlich werden.In commercially used dishwashers, one and the same type of machine is often built in multiple geometrical dimensions. This also changes the length of the spray pipes, which are generally transversal to the machine, i. in continuous machines are arranged perpendicular to the feed direction of the goods to be cleaned. As the length of such a spray system changes, a different number of nozzles are also introduced into the spray tube. In addition, by requirements of the cleaning material on spray pipes of the same length from machine to machine, a different number of nozzles may be required.
Die genannten Sprührohre mit Düsen werden gewöhnlich so hergestellt beziehungsweise ausgeführt, dass in einen rohrförmigen Körper, über die gesamte Länge verteilt, mehrere runde oder schlitzförmige Öffnungen eingebracht werden. Eine weitere Ausführung, die aus dem Stand der Technik bekannt ist, liegt darin, zunächst längs des Rohres eine durchgehende Rinne nach innen zu prägen und die Düsenöffnungen in dieser Rinne zu platzieren. Eine weitere aus dem Stande der Technik bekannte Ausführungsvariante liegt darin, dass an den Stellen im Sprührohr, an denen eine Düse erforderlich ist, zunächst eine Kalotte nach innen oder außen geprägt wird und die Düsenöffnung in dieser Kalotte platziert ist.The said spray pipes with nozzles are usually made or executed so that in a tubular body, distributed over the entire length, a plurality of round or slot-shaped openings are introduced. A further embodiment, which is known from the prior art, is first to emboss a continuous groove inwardly along the tube and to place the nozzle openings in this groove. Another embodiment known from the prior art is that at the points in the spray tube, where a nozzle is required, first a dome is stamped inwardly or outwardly and the nozzle opening is placed in this dome.
Die Ausführung dieser Kalotte und die Platzierung der Düsenöffnung in der Kalotte bestimmt die Form des Strahles und seine Richtung. Aus fertigungstechnischen Gründen ist es besonders vorteilhaft, wenn jede Düse in gleicher Art, d.h. in Bezug auf Form und Richtung, gefertigt werden kann. Wenn ein Sprührohr der beschriebenen Art mit gleichen Düsen betrieben wird, ist zu beobachten, dass sich die Strahlen an den Düsen über die Längsrichtung des Rohres in unterschiedliche Richtung ausbilden, d.h. die Strahlen nahe bei der Einspeisestelle der Reinigungsflüssigkeit sind stark in Anströmrichtung des Rohres geneigt, während die weiter entfernt aus dem Rohr austretenden Strahlen zunehmend weniger geneigt sind, bis zum letzten Strahl, der sich annähernd orthogonal zum Rohr bildet.The design of this dome and the placement of the nozzle opening in the dome determines the shape of the dome and its direction. For manufacturing reasons, it is particularly advantageous if each nozzle in the same kind, i. in terms of shape and direction, can be made. When a spray tube of the type described is operated with the same nozzles, it can be observed that the jets on the nozzles form in different directions along the longitudinal direction of the tube, i. the jets close to the feed point of the cleaning liquid are strongly inclined in the direction of flow of the tube, while the more distant from the tube emerging rays are increasingly less inclined, to the last jet, which forms approximately orthogonal to the tube.
Diese Erscheinung, die das Spritzbild beziehungsweise die Fächerstrahlen negativ beeinflusst, kann dadurch verhindert werden, dass jede Düse in einer eigenen, optimalen Richtung in das Sprührohr eingebracht wird, und so den Einflüssen aus der inneren Strömung im Rohr entgegengewirkt wird.This phenomenon, which adversely affects the spray pattern or fan jets, can be prevented by having each nozzle in its own optimal direction is introduced into the spray tube, and thus counteracted the influences of the inner flow in the pipe.
Wenn sich nun bei vorgegebenem Grundtyp des Sprührohres und seiner Flüssigkeitsversorgung die Anzahl der Düsen ändert, ist zu beobachten, dass die zuvor gefundene Einstellung, was die Düsenrichtung betrifft, nicht mehr eingehalten wird. Dies bedeutet, dass für jede Sprührohrvariante eine eigene optimale Anordnung und Einbringrichtung für die Düsenöffnungen in aufwändiger Weise zu ermitteln und in der Fertigung zu realisieren ist. Daraus ergibt sich jedoch ein erheblicher zusätzlicher Aufwand für Versuche und in der Fertigung der Sprührohre, was sehr nachteilig ist. Des Weiteren ist zu beobachten, dass sich mit variierendem Versorgungsdruck der Reinigungsflüssigkeit im Sprührohr ebenfalls die Neigung der aus den Düsen austretenden Strahlen ändert, so dass eine für optimal befundene Einbringrichtung der Düsenöffnung lediglich für einen Betriebspunkt gute Ergebnisse liefert.If, for a given basic type of spray lance and its liquid supply, the number of nozzles changes, it can be observed that the previously found setting with regard to the nozzle direction is no longer complied with. This means that for each spray tube variant its own optimal arrangement and introduction direction for the nozzle openings to determine in a complex manner and to realize in the production. However, this results in a considerable additional effort for experiments and in the production of the spray pipes, which is very disadvantageous. Furthermore, it can be observed that, with varying supply pressure of the cleaning liquid in the spray tube, the inclination of the jets issuing from the nozzles also changes, so that an insertion direction of the nozzle opening which has been found to be optimal provides good results only for one operating point.
Anstatt die Düsen direkt in den Mantel des Sprührohrs einzustanzen und diese durch die dünne Wand des Sprührohres beziehungsweise des Sprüharms oder dessen Flügel zu bilden, können auch komplette Düsen mit jeweils einer eigenen relativ langen Anströmstrecke in das Sprührohr eingesetzt werden. Dieser Ansatz bedeutet eine erheblich größere Anzahl an Bauteilen und verteuert dadurch das System erheblich.Instead of injecting the nozzles directly into the mantle of the spray tube and forming them through the thin wall of the spray tube or the spray arm or its wings, complete nozzles, each with its own relatively long inflow section, can also be inserted into the spray tube. This approach means a significantly larger number of components and thus increases the cost of the system considerably.
Eine weitere Möglichkeit, die obenstehend beschriebenen Nachteile zu vermeiden, liegt darin, die Sprührohre, die Sprüharme beziehungsweise die Sprüharmflügel mit im Verhältnis sehr großen Querschnitten auszuführen, so dass die Strömungsgeschwindigkeit der Reinigungsflüssigkeit innerhalb des Strömungsquerschnittes im Inneren der Sprührohre beziehungsweise Sprüharme oder Sprüharmflügel sehr niedrig wird. Während heutige Sprührohre in der Regel einen kreisrunden Querschnitt mit einem Durchmesser von 43 mm aufweisen, müssten optimierte Sprührohre demzufolge einen Durchmesser von ca. 100 mm haben. Aufgrund des dafür erforderlichen großen erforderlichen Bauraumes und des erheblichen Materialmehraufwandes ist dieser Lösungsansatz jedoch ebenfalls nachteilig.Another way to avoid the disadvantages described above is to make the spray pipes, the spray arms or Sprüharmflügel with relatively large cross-sections, so that the flow rate of the cleaning liquid within the flow cross-section inside the spray pipes or Sprüharmflügel very low , While today's spray pipes usually have a circular cross section with a diameter of 43 mm, optimized spray pipes would therefore have a diameter of about 100 mm. However, this approach is also disadvantageous because of the required large installation space and the considerable additional material costs.
Angesichts der obenstehend skizzierten Nachteile der Lösungen aus dem Stande der Technik liegt der vorliegenden Erfindung die Aufgabe zugrunde, eine Lösung zu finden, mit der alle Düsen eines Sprührohrs in der gleichen Art und Richtung in das Sprührohr, den Sprüharm beziehungsweise Wascharmflügel eingebracht werden können und sich das Strahlbild trotzdem gleichmäßig und gleichbleibend ausbildet, insbesondere unabhängig von der Anzahl der Düsen und des im Sprührohr oder Sprüharm herrschenden Versorgungsdruckes der Reinigungsflüssigkeit.In view of the above-outlined disadvantages of the prior art solutions, the present invention has for its object to find a solution with all the nozzles of a spray pipe in the same type and direction in the spray tube, the spray arm or Wascharmflügel can be introduced and Nevertheless, the jet image uniformly and consistently forms, in particular independently from the number of nozzles and the pressure prevailing in the spray tube or spray arm supply pressure of the cleaning liquid.
Diese Aufgabe wird gelöst durch ein Sprührohr mit den Merkmalen des Anspruchs 1 sowie eine Maschine zur Reinigung von Reinigungsgut mit den Merkmalen des Anspruchs 11. Vorteilhafte Weiterbildungen, welche einzeln oder in Kombination realisiert sein können, sind in den abhängigen Ansprüchen dargestellt.This object is achieved by a spray pipe having the features of
Es wird ein Sprührohr für die Beaufschlagung von zu reinigendem Gut mit Reinigungsflüssigkeit vorgeschlagen, welches insbesondere für den Einsatz in Geschirrspülmaschinen eingerichtet ist. Das Sprührohr weist eine Längsausdehnung auf und verfügt in der Längsausdehnung über mindestens zwei Düsen zum Aufsprühen von Reinigungsflüssigkeit auf zu reinigendes Gut. Innerhalb des Sprührohrs wird vor mindestens einer Düse die Strömung der Reinigungsflüssigkeit derart abgelenkt, dass ein durch eine Düsenöffnung der Düse austretender Strahl im Wesentlichen keine in Längsrichtung des Sprührohrs gerichtete Strömungskomponente enthält und im Wesentlichen orthogonal zum Sprührohr aus der mindestens einen Düse austritt.It is proposed a spray pipe for the application of cleaning material to be cleaned with cleaning liquid, which is particularly adapted for use in dishwashers. The spray tube has a longitudinal extent and has in the longitudinal extent of at least two nozzles for spraying cleaning liquid on to be cleaned Good. Within the spray tube, the flow of the cleaning liquid is deflected in front of at least one nozzle such that a jet emerging through a nozzle opening of the nozzle contains substantially no flow component directed in the longitudinal direction of the spray tube and exits the at least one nozzle substantially orthogonally to the spray tube.
Vorzugsweise wird im Sprührohr beziehungsweise Sprüharm beziehungsweise Sprüharmflügel vor den Austrittsdüsen, durch die die Reinigungsflüssigkeit in die Reinigungskammer beziehungsweise in die Behandlungszone eintritt, beziehungsweise im Anströmbereich der Düsen, ein Strömungsprofil erzeugt, welches von einer Hauptströmung, die sich mit relativ hoher Strömungsgeschwindigkeit in Längsrichtung des Sprührohres ausbildet, entkoppelt ist. Dies kann zum Beispiel durch Ablenkkörper erreicht werden, hinter denen sich ein relativ beruhigter Strömungsbereich einstellt. Durch diese Maßnahme tritt die Reinigungsflüssigkeit im Wesentlichen ohne Strömungskomponente, die in Längsrichtung des Sprührohres beziehungsweise des Sprüharms beziehungsweise des Sprüharmflügels gerichtet ist, aus den Öffnungen der betreffenden Düsen aus. Die Ebene des Spritzstrahles kann sich deswegen im Wesentlichen orthogonal zur Längsachse des Sprührohres beziehungsweise Sprüharmes beziehungsweise Sprüharmflügels ausbilden. Unter "im Wesentlichen" sind dabei beispielsweise Abweichungen von nicht mehr als 20°, vorzugsweise von nicht mehr als 10° und besonders bevorzugt von nicht mehr als 5° zu verstehen. Um diesen beruhigten Bereich zu schaffen, existieren mehrere technische Möglichkeiten, die nachfolgend im Zusammenhang mit den Zeichnungen beschrieben werden.Preferably, in the spray tube or spray arm or Sprüharmflügel before the outlet nozzles, through which the cleaning liquid enters the cleaning chamber or in the treatment zone, or in the Anströmbereich the nozzles, a flow profile generated by a main flow, with relatively high flow velocity in the longitudinal direction of the spray tube trains, is decoupled. This can be achieved, for example, by deflecting bodies, behind which a relatively calm flow region is established. By virtue of this measure, the cleaning fluid essentially leaves the openings of the nozzles in question without a flow component which is directed in the longitudinal direction of the spray tube or of the spray arm or of the spray arm blade. The plane of the spray jet can therefore form substantially orthogonal to the longitudinal axis of the spray tube or spray arm or Sprüharmflügels. By "substantially" are meant, for example, deviations of not more than 20 °, preferably not more than 10 ° and particularly preferably not more than 5 °. In order to provide this calming area, there are several technical possibilities which will be described below in connection with the drawings.
Anhand der Zeichnung wird die Erfindung nachfolgend eingehender beschrieben.Reference to the drawings, the invention will be described below in more detail.
Es zeigt:
Figur 1- eine schematische Darstellung der sich bei den Lösungen des Standes der Technik einstellenden negativen Effekte,
Figur 2- eine erste Ausführungsform der erfindungsgemäß vorgeschlagenen Lösung mit einem geprägten Ablenkkörper,
Figur 3- eine weitere, zweite Ausführungsform der Erfindung mit einem eingebauten Ablenkkörper,
- Figur 4
- eine weitere, dritte Ausführungsform der erfindungsgemäß vorgeschlagenen Lösung mit zungenförmig ausgebildeten Ablenkkörpern und
Figur 5- eine weitere, vierte Ausführungsform der erfindungsgemäß vorgeschlagenen Lösung mit einem eingebauten Trennblech zur Teilung des Strömungskanals.
- FIG. 1
- a schematic representation of adjusting in the solutions of the prior art negative effects,
- FIG. 2
- a first embodiment of the proposed solution according to the invention with an embossed deflection body,
- FIG. 3
- a further, second embodiment of the invention with a built-in deflection body,
- FIG. 4
- a further, third embodiment of the invention proposed solution with tongue-shaped deflecting bodies and
- FIG. 5
- a further, fourth embodiment of the proposed solution according to the invention with a built-in separating plate for dividing the flow channel.
Die Darstellung gemäß
Der Darstellung gemäß
In der Darstellung gemäß
Dies bedeutet zum Beispiel für ein Sprührohr 1, welches einen Innendurchmesser von ca. 43 mm aufweist und in dessen Mantelfläche 10 Düsenöffnungen 4 eingebracht sind, dass die Höhe der Ablenkkörper 8 in der Größenordnung von 10 mm liegt. Sollte im Mantel des Sprührohrs 1 eine Düse beziehungsweise eine Düsenöffnung 4 vorgesehen sein, die keine Prägung nach innen hin aufweist, so ist die Höhe des Ablenkkörpers 8 so zu wählen, dass diese dem kleinsten Querschnitt der Düsenöffnung entspricht. Die Ablenkkörper 8 können zum Beispiel durch Prägungen im Mantel des Sprührohrs 1 von der Außenseite her nach innen unmittelbar in der Nachbarschaft der Düsenöffnung 4 im Mantel des Sprührohrs 1 erzeugt werden. Dies ist mit dem zusätzlichen Vorteil verbunden, dass die Herstellung der Ablenkkörper 8 und der Düsenöffnungen 4 selbst in einem Arbeitsgang erfolgen kann, was sehr wirtschaftlich ist. Darüber hinaus sind keine zusätzlichen Bauteile erforderlich, die Mehrkosten erzeugen und/oder im Betrieb Störungen verursachen können.This means, for example, for a
Der Darstellung gemäß
Aus der Darstellung gemäß
Der Darstellung gemäß
In der in
Der Darstellung gemäß
Wie der Darstellung gemäß
Die in der Darstellung gemäß
- 11
- Sprührohrlance
- 22
- SprührohrquerschnittSprührohrquerschnitt
- 33
- Zuströmöffnunginflow
- 44
- Prägung mit DüsenöffnungEmbossment with nozzle opening
- 55
- Anströmrichtungflow direction
- 66
- Strömungsrichtung im RohrFlow direction in the pipe
- 77
- Ebene der DüsenstrahlenPlane of the jets
- 88th
- Ablenkkörperdeflecting
- 99
- Halteelementretaining element
- 1010
- Blechteilsheet metal part
- 1111
- Ablenkzungedeflecting tongue
- 1212
- Trennwandpartition wall
- 1313
- Versorgungskanalsupply channel
- 1414
- Abströmkanaloutflow channel
- 1515
- Verbindungsöffnungconnecting opening
Claims (11)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102008018803A DE102008018803B4 (en) | 2008-04-15 | 2008-04-15 | nozzle system |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2110063A1 true EP2110063A1 (en) | 2009-10-21 |
Family
ID=40934007
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09004464A Withdrawn EP2110063A1 (en) | 2008-04-15 | 2009-03-27 | Nozzle system |
Country Status (4)
Country | Link |
---|---|
US (1) | US20090255560A1 (en) |
EP (1) | EP2110063A1 (en) |
CN (1) | CN101559409A (en) |
DE (1) | DE102008018803B4 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015144198A1 (en) * | 2014-03-24 | 2015-10-01 | Electrolux Appliances Aktiebolag | Dishwasher comprising at least one dishwasher spray arm |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
MX2011000055A (en) * | 2008-06-30 | 2011-07-28 | Mathena Inc | Ecologically sensitive mud-gas containment system. |
US8784545B2 (en) | 2011-04-12 | 2014-07-22 | Mathena, Inc. | Shale-gas separating and cleanout system |
CA2832804C (en) * | 2011-04-12 | 2020-06-09 | Mathena, Inc. | Shale-gas separating and cleanout system |
DE102011088494A1 (en) * | 2011-12-14 | 2013-06-20 | BSH Bosch und Siemens Hausgeräte GmbH | Spray arm for household dishwasher, has nozzles, and flow barrier formed such that sequence of flow swirls is produced when fluid flows through arm, where spray jet discharged by nozzle has temporally changing spray direction |
WO2013170137A2 (en) | 2012-05-11 | 2013-11-14 | Mathena, Inc. | Control panel, and digital display units and sensors therefor |
USD763414S1 (en) | 2013-12-10 | 2016-08-09 | Mathena, Inc. | Fluid line drive-over |
CN108366708B (en) | 2015-12-21 | 2022-03-18 | 伊莱克斯电器股份公司 | Dishwasher comprising a washing arm arrangement |
US10750924B2 (en) * | 2016-03-24 | 2020-08-25 | Whirlpool Corporation | Dishwasher with tube wash system |
KR20190026795A (en) | 2016-07-08 | 2019-03-13 | 일렉트로룩스 어플라이언스 아크티에볼레그 | Cleaning arm assembly |
AU2017437703B2 (en) | 2017-10-31 | 2024-08-01 | Electrolux Appliances Aktiebolag | Fan-shaped spray detergent nozzle |
EP3703545A1 (en) | 2017-10-31 | 2020-09-09 | Electrolux Appliances Aktiebolag | Wash arm assembly |
PL3703547T3 (en) | 2017-10-31 | 2024-07-15 | Electrolux Appliances Aktiebolag | Spray arm assembly |
JP6855399B2 (en) * | 2018-01-26 | 2021-04-07 | 株式会社スギノマシン | Nozzle runout measurement method and its equipment |
US11006813B2 (en) | 2018-03-21 | 2021-05-18 | Whirlpool Corporation | Dishwasher |
CN110664341A (en) * | 2018-07-02 | 2020-01-10 | 青岛海尔洗碗机有限公司 | Spraying device of dish washing machine |
USD891105S1 (en) | 2019-01-28 | 2020-07-28 | Unified Brands, Inc. | Basket assembly |
WO2020076848A1 (en) * | 2018-10-08 | 2020-04-16 | Unified Brands, Inc. | Flow diverter and basket |
US11325167B2 (en) | 2018-10-08 | 2022-05-10 | Unified Brands, Inc. | Flow diverter and basket |
CN111345761A (en) | 2018-12-20 | 2020-06-30 | 惠而浦公司 | Dish washing machine |
US11465259B2 (en) * | 2019-02-13 | 2022-10-11 | The Boeing Company | System and method for fluid cavitation processing a part |
CN115841974B (en) * | 2023-02-24 | 2023-05-05 | 江苏亚电科技有限公司 | Water film spraying equipment of photovoltaic cleaning equipment |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH379708A (en) | 1960-03-22 | 1964-07-15 | Lanker Traugott | dishwasher |
DE2907916A1 (en) | 1979-03-01 | 1980-09-11 | Holstein & Kappert Maschf | Tunnel type pasteurising system - has spray pipe with angled nose pieces on nozzles to prevent blockage |
DE20220465U1 (en) | 2002-01-30 | 2003-08-21 | Miele & Cie. KG, 33332 Gütersloh | A method for generating a widespread water spray from a dishwasher spray arm has the outlet holes pierced prior to forming elliptical depressions |
EP1707100A2 (en) * | 2005-04-02 | 2006-10-04 | Premark FEG L.L.C. | Conveyor-type warewasher and spraying tube for same |
US20070158472A1 (en) * | 2006-01-05 | 2007-07-12 | Jackson Msc., Inc. | Flow equalization baffle for multi-nozzle spray systems |
WO2008100741A1 (en) * | 2007-02-12 | 2008-08-21 | Premark Feg L.L.C. | Wash arm assembly attachment for a warewasher |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1533909A (en) * | 1922-05-18 | 1925-04-14 | Ora A Ferguson | Burner for gas stoves |
US1676472A (en) * | 1925-11-21 | 1928-07-10 | A V Burner Company | Circulating gas burner |
US3334820A (en) * | 1964-01-23 | 1967-08-08 | John H Flynn | Gas burner of selective flame distribution type |
DE19543960C2 (en) * | 1995-11-25 | 2000-04-06 | Driam Metallprodukt Gmbh & Co | Spray arm for a coating device |
DE102005026558B3 (en) * | 2005-06-08 | 2006-11-16 | Miele & Cie. Kg | Method for providing a pulsed wash spray in a domestic dish washing machine has a rotary member in the spray arms which opens and closes the liquid to the spray nozzles |
KR101269740B1 (en) * | 2006-06-19 | 2013-05-30 | 엘지전자 주식회사 | washing nozzle and dish washer equipped it |
ES2369727T3 (en) * | 2007-08-14 | 2011-12-05 | Miele & Cie. Kg | DISHWASHER. |
-
2008
- 2008-04-15 DE DE102008018803A patent/DE102008018803B4/en not_active Expired - Fee Related
-
2009
- 2009-03-27 EP EP09004464A patent/EP2110063A1/en not_active Withdrawn
- 2009-04-10 CN CNA2009101339341A patent/CN101559409A/en active Pending
- 2009-04-15 US US12/424,203 patent/US20090255560A1/en not_active Abandoned
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH379708A (en) | 1960-03-22 | 1964-07-15 | Lanker Traugott | dishwasher |
DE2907916A1 (en) | 1979-03-01 | 1980-09-11 | Holstein & Kappert Maschf | Tunnel type pasteurising system - has spray pipe with angled nose pieces on nozzles to prevent blockage |
DE20220465U1 (en) | 2002-01-30 | 2003-08-21 | Miele & Cie. KG, 33332 Gütersloh | A method for generating a widespread water spray from a dishwasher spray arm has the outlet holes pierced prior to forming elliptical depressions |
EP1707100A2 (en) * | 2005-04-02 | 2006-10-04 | Premark FEG L.L.C. | Conveyor-type warewasher and spraying tube for same |
US20070158472A1 (en) * | 2006-01-05 | 2007-07-12 | Jackson Msc., Inc. | Flow equalization baffle for multi-nozzle spray systems |
WO2008100741A1 (en) * | 2007-02-12 | 2008-08-21 | Premark Feg L.L.C. | Wash arm assembly attachment for a warewasher |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015144198A1 (en) * | 2014-03-24 | 2015-10-01 | Electrolux Appliances Aktiebolag | Dishwasher comprising at least one dishwasher spray arm |
RU2660030C2 (en) * | 2014-03-24 | 2018-07-04 | Электролюкс Апплайнсиз Актиеболаг | Dishwasher containing at least one dishwasher spraying device |
US10058226B2 (en) | 2014-03-24 | 2018-08-28 | Electrolux Appliances Aktiebolag | Dishwasher comprising at least one dishwasher spray arm |
AU2014388132B2 (en) * | 2014-03-24 | 2019-11-14 | Electrolux Appliances Aktiebolag | Dishwasher comprising at least one dishwasher spray arm |
Also Published As
Publication number | Publication date |
---|---|
US20090255560A1 (en) | 2009-10-15 |
DE102008018803B4 (en) | 2010-01-28 |
CN101559409A (en) | 2009-10-21 |
DE102008018803A1 (en) | 2009-10-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE102008018803B4 (en) | nozzle system | |
EP2302120B1 (en) | Injector for a textile processing machine | |
DE102012016398B4 (en) | Nozzle device for a spray arm of a dishwasher | |
EP1700943B1 (en) | Washing machine with injection nozzle | |
EP2888394B1 (en) | Device for hydrodynamically strengthening nonwovens, wovens or knitted fabrics | |
DE112012005017B4 (en) | Apparatus for controlling fluid flow in an emergency washing system, apparatus for controlling fluid flow and washing system for providing fluid flow | |
DE102004030004A1 (en) | Spray nozzle for a dishwasher | |
EP2025798A2 (en) | Water supply device for a washing machine and washing machine | |
DE7118779U (en) | WATER JET FAN | |
EP1592473B1 (en) | Aortic cannula | |
DE19941729A1 (en) | Nozzle body for generating the finest liquid jets z. B. on water needling devices | |
DE10255884B4 (en) | nozzle assembly | |
EP3951110B1 (en) | Flush toilet | |
DE102008004999B4 (en) | Device for producing a fan-shaped jet and method for producing the device | |
DE102005015156A1 (en) | Transport dishwashing machine and spray pipe for it | |
DE102016107947A1 (en) | Windscreen washer nozzle with two nozzle openings and less complexity | |
DE3024472A1 (en) | FULL CONE NOZZLE FOR SPRAYING LIQUID | |
DE112019004251T5 (en) | Water outlet nozzle and water jet device with the same | |
EP1673000B1 (en) | Dishwasher with integrated spray channels | |
DE102016105748A1 (en) | Method for producing a windscreen washer nozzle and windscreen washer nozzle | |
EP3088087A1 (en) | Spray nozzle and method for producing non-round spray cones | |
DE2261674A1 (en) | DEVICE FOR SUCTIONING AND ADDING ADDITIVES INTO A FLOW OF LIQUID | |
DE1503792A1 (en) | Spray device for automatic dishwashers | |
DE102020123582A1 (en) | Nozzle device, method and device for dispensing a liquid into a washing chamber of a cleaning device and cleaning device | |
EP2803760A2 (en) | Method and device for direct heating of liquids particularly for the wet treatment of laundry items with steam |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR |
|
AX | Request for extension of the european patent |
Extension state: AL BA RS |
|
AKX | Designation fees paid |
Designated state(s): CH FR GB IT LI |
|
17P | Request for examination filed |
Effective date: 20100401 |
|
RBV | Designated contracting states (corrected) |
Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR |
|
17Q | First examination report despatched |
Effective date: 20100707 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: 8566 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20161001 |