EP3005928A1 - Transport dishwasher - Google Patents
Transport dishwasher Download PDFInfo
- Publication number
- EP3005928A1 EP3005928A1 EP15189056.3A EP15189056A EP3005928A1 EP 3005928 A1 EP3005928 A1 EP 3005928A1 EP 15189056 A EP15189056 A EP 15189056A EP 3005928 A1 EP3005928 A1 EP 3005928A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- zone
- rinse zone
- sieve
- additional
- dishwashing machine
- 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
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 42
- 238000011144 upstream manufacturing Methods 0.000 claims abstract description 30
- 239000013505 freshwater Substances 0.000 claims abstract description 27
- 239000007788 liquid Substances 0.000 claims abstract description 8
- 238000004851 dishwashing Methods 0.000 claims description 19
- 238000012216 screening Methods 0.000 claims description 18
- 239000012466 permeate Substances 0.000 claims description 7
- 238000000926 separation method Methods 0.000 claims description 5
- 238000005086 pumping Methods 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 2
- 238000011010 flushing procedure Methods 0.000 claims 2
- 238000010438 heat treatment Methods 0.000 claims 1
- 239000002245 particle Substances 0.000 description 5
- 239000003513 alkali Substances 0.000 description 2
- 238000011001 backwashing Methods 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
Images
Classifications
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- 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
- A47L15/241—Washing or rinsing machines for crockery or tableware with movement of the crockery baskets by conveyors the dishes moving in a horizontal plane
-
- 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
-
- 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
- A47L15/4202—Water filter means or strainers
- A47L15/4204—Flat filters
-
- 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
- A47L15/4291—Recovery arrangements, e.g. for the recovery of energy or water
Definitions
- the present invention relates to a transport dishwasher, which is used in particular in the commercial sector, wherein such transport dishwashing machines usually comprise a plurality of rinsing zones, is transported by the washware to be washed by means of a conveyor belt and treated.
- Such transport dishwashers are known in manifold form, for example from the DE 10 2009 024 569 A1 ,
- the transport dishwasher according to the invention on the one hand, used an additional rinsing zone, which is arranged between a fresh water rinsing zone, which is typically the last rinsing zone of a transporting dishwashing machine, and an upstream rinsing zone.
- the transport dishwasher according to the invention comprises a first sump and a tank, which are arranged in the transport dishwasher so that the water used optimally used and optimal can be used multiple times, taking into account in particular the typical flow rates in the different rinse zones.
- a first collecting tray of the transporting dishwashing machine is designed and arranged such that it only collects water that is dispensed in the fresh water washing zone via the dispensing nozzles arranged in this fresh water washing zone.
- a second pumping device is provided and adapted to discharge the water collected in the first sump into the additional post rinse zone via dispensing nozzles located in the additional rinse zone.
- the fresh water rinse zone and the additional rinse zone are further preceded by another rinse zone.
- This, preferably directly upstream, rinse zone comprises a tank which is, however, designed to catch both water delivered in the additional rinse zone via the dispensing nozzles located therein as well as to collect water discharged in the rinse zone immediately upstream.
- This water collected in the tank is discharged via a third pumping device into the directly upstream rinsing zone by means of dispensing nozzles arranged therein.
- the transport dishwasher according to the invention therefore provides an optimal solution, which ensures that the resource water for a very economical and, in optimal Way, is used repeatedly, while at the same time optimal volumes and flow rates can be ensured in each rinse zones.
- the tank is at least partially covered with a screening device.
- a sieve device completely covers the tank, wherein this sieve device is designed so that an inclined, closed sheet is provided in the region of the additional rinsing zone, while in the region of the at least one further upstream rinsing zone, the sieve device as an inclined overflow sieve is trained.
- the first collecting trough is covered with a sieve device, preferably a fine sieve is used, which is particularly advantageous because the water that falls on the first sump, is still pretty clean and contains only very few particles ,
- the screening device of the first collecting trough is also inclined and coupled to the sieve device of the tank such that liquid which does not pass through the sieve device of the first collecting trough into the first collecting trough is guided onto the sieve device of the tank.
- the overflow sieve of the sieve device of the tank in the region of the directly following rinsing zone is formed so that it comprises a sieve element and a lower trough, wherein the sieve element above the lower trough and with Distance from the lower tub is arranged.
- a channel with a height h for discharging a permeate is formed between the lower pan and the sieve element.
- the lower trough is inclined at an angle ⁇ to the horizontal, so that the permeate can flow on the lower trough due to gravity and the inclination of the lower trough.
- the screen element is also inclined, namely by an angle ⁇ , which is preferably smaller than the angle ⁇ or the angle ⁇ corresponds, so that the height h between sub-tray and screen element in the direction of flow either increases or does not change significantly ,
- Such an embodiment has the advantage that it supports the principle of the overflow valve, in particular the height h can be designed such that due to the volume flows, an already filtered liquid of the volume flow, which presses the permeate from below the sieve surface through the sieve surface, so that in particular dirt particles on the top of the screening device are better transported away.
- the adhesion of dirt particles or fibers on the surface of the sieve device is also reduced by this effect, so that, as it were, backwashing or overflowing of the sieve device or sieve element is achieved.
- the sieve device is designed such that the height h increases in the direction of outflow, it is advantageously used in this way that, of course, the total volume or the volume flow increases in the direction of the outflow direction, because additional water passes through the sieve element, so that the height of the already filtered Liquid increases below the sieve element and on the lower sump in the direction of the outflow direction.
- This ensures that the screening device is optimally adapted to the volume flows and that the resource water is used very carefully and optimally, on the one hand ensuring that the overflow principle and the "backwashing" of the sieve element is ensured, while at the same time avoiding a lot of water remains above the sieve element and can not be used as permeate.
- the dispensing nozzles in the directly upstream rinsing zone and / or the third pumping device are designed to achieve a flow rate (of discharged water) greater than the flow rate in the fresh water rinse zone or the additional rinse zone in the immediately upstream rinse zone , This ensures that in this area of the directly upstream rinsing zone the desired volume flows be ensured, while at the same time in a particularly effective manner, the water from the fresh water rinse zone and the additional Vietnamese Vietnamesezone comprising lower flow rates can be used for the directly upstream rinse zone.
- the fresh water rinsing zone and the additional rinsing zone are preferably at least partially separated from one another by a separating device.
- the separating device can be realized by one or more wall elements which extend from a bottom region of the fresh water rinsing zone and / or the additional rinsing zone in the vertical direction, wherein in particular the height or the extent in the vertical direction optimally to the desired conditions can be adjusted.
- water may also generally include liquids, in particular optionally water with additives or also treated, for example softened water.
- Fig. 1 schematically shows a functional representation of a transport dishwasher 10 according to the invention, which is supplied via a fresh water connection 15 with fresh water, wherein the fresh water is passed into a heated boiler 20.
- the transport dishwasher 10 comprises a fresh water rinsing zone 100 with dispensing nozzles 110 arranged in this zone, an additional rinsing zone 200 with dispensing nozzles 210 arranged in the rinsing zone and a further, upstream rinsing zone 300 with dispensing nozzles 310 arranged therein.
- a conveyor dishwasher according to the invention can also comprise a plurality of nozzles in each rinse zone and in different positions, movable or fixed.
- the Frischwassernach Cypruszone 100 receives fresh water from the heated boiler 20, the fresh water is pumped by a pump 25 from the boiler 20 and the dispensing nozzles 110 is supplied.
- the water discharged from the dispensing nozzles 110 is collected by a first collecting tray 120, which is covered with a screening device 140, here a fine sieve.
- the transport dishwasher 10 and the first drip pan 120 are designed and arranged so that only water that is discharged from the dispensing nozzles 110 in the fresh water rinse zone 100 can be collected, but not water or liquid from other rinsing zones.
- the water collected in the first drip pan 120 can be transported via a pump 125 to further dispensing nozzles 210 in the additional final rinse zone 200.
- transport dishwasher 10 further comprises a tank 220, which is covered in this embodiment with a screening device 240.
- the sieve device 240 comprises a plurality of regions, wherein the sieve device 240 has an inclined, closed plate 250 in the region of the additional final rinse zone 200, while the sieve device 240 in the region of the directly upstream rinse zone 300 comprises a sieve device 260 which is designed as an inclined overflow sieve.
- the screening device 260 designed as an overflow sieve comprises a lower trough 262 and a sieve element 264 which is formed above the lower trough so that a channel with a height h for discharging the permeate is formed between the lower trough 262 and the sieve element 240.
- the height h 0.5 cm, depending on the design of the transport dishwasher and in particular the usual volume flows also different configurations are possible in which the height h between the lower pan 262 and the filter element 264 varies, in particular between 0.1 cm and 5 , 0 cm.
- Water discharged via the dispensing nozzles 210 in the additional post-rinsing zone 200 reaches the screening device 240 and is conveyed via the inclined, closed sheet 250 to the screening device 260 designed as an overflow sieve.
- Water which is discharged from the discharge nozzles 310 of the upstream rinsing zone 300, also passes to the screening device 240, wherein the water from the upstream rinsing zone 300 passes directly onto the sieve device designed as an overflow sieve.
- water or a liquid is collected which will be delivered both through the corresponding dispensing nozzles 210 in the additional post-rinse zone and water dispensed via the dispensing nozzles 310 in the upstream rinse zone 300.
- the water collected in the tank is fed via a pump 225 to the dispensing nozzles 310 in the upstream rinsing zone 300 and, after being dispensed, arrives again at the screening device 260, so that a (partial) circulation is created.
- a separator 150 is further provided, which in Fig. 1 however, it is merely indicated.
- This separation device is a separation or wall element that extends vertically upward from the bottom of the fresh water rinse zone 100.
- This partition or separation device 150 serves to dissipate excess volume from the first drip pan 120 into the tank 220. Likewise, it serves to ensure that neither spray water of the upstream rinsing zone 300 nor the additional rinsing zone 200 reaches the first drip pan 120.
- the partition or separation device 150 is designed so that the penetration of spray water from the upstream rinse zone or from the additional rinse zone is either completely prevented, or at least largely avoided.
- a conveyor belt would run so that the items to be treated, in Fig. 1 Runs from left to right through the transport dishwasher 10 so that it passes first through the upstream rinse zone 300, then through the additional Nachêtzone 200 and finally through the Frischigannach Whyzone 100.
Landscapes
- Washing And Drying Of Tableware (AREA)
Abstract
Die vorliegende Erfindung betrifft eine Transportgeschirrspülmaschine (10) mit einer Frischwassernachspülzone (100), einer zusätzlichen Nachspülzone (200) und einer weiteren vorgelagerten Spülzone (300). Die Transportgeschirrspülmaschine umfasst eine erste (120) und eine zweite (220) Auffangwanne zum Auffangen von Wasser bzw. Flüssigkeiten, die in den einzelnen Zonen abgegeben werden.The present invention relates to a transport dishwasher (10) having a fresh water rinse zone (100), an additional rinse zone (200) and a further upstream rinse zone (300). The transport dishwasher comprises a first (120) and a second (220) drip tray for collecting water or liquids that are discharged in the individual zones.
Description
Die vorliegende Erfindung betrifft eine Transportgeschirrspülmaschine, die insbesondere im gewerblichen Bereich eingesetzt wird, wobei solche Transportgeschirrspülmaschinen üblicherweise mehrere Spülzonen umfassen, durch die zu spülendes Spülgut mittels eines Transportbandes transportiert und behandelt wird.The present invention relates to a transport dishwasher, which is used in particular in the commercial sector, wherein such transport dishwashing machines usually comprise a plurality of rinsing zones, is transported by the washware to be washed by means of a conveyor belt and treated.
Solche Transportgeschirrspülmaschinen sind in mannigfaltiger Form bekannt, beispielsweise aus der
Insbesondere aus Gründen des Umweltschutzes und des sparsamen Umgangs mit Ressourcen werden immer größere Anforderungen an solche Transportgeschirrspülmaschinen gestellt.In particular, for reasons of environmental protection and the economical use of resources, ever greater demands are placed on such transport dishwashing machines.
Es ist daher eine Aufgabe der vorliegenden Erfindung, eine Transportgeschirrspülmaschine zur Verfügung zu stellen, die sparsamer mit den Ressourcen umgeht, nach wie vor aber ein gutes Spülergebnis für das zu reinigende Spülgut liefert.It is therefore an object of the present invention to provide a transport dishwashing machine, which deals more sparingly with the resources, but still provides a good dishwashing result for the items to be cleaned.
Diese Aufgabe wird durch eine Transportgeschirrspülmaschine gemäß Anspruch 1 gelöst, die Ansprüche 2 bis 12 betreffen besonders vorteilhafte Ausführungsformen der erfindungsgemäßen Geschirrspülmaschine.This object is achieved by a transport dishwasher according to claim 1, the claims 2 to 12 relate to particularly advantageous embodiments of the dishwasher according to the invention.
Die erfindungsgemäße Transportgeschirrspülmaschine setzte zum einen eine zusätzliche Nachspülzone ein, die zwischen einer Frischwassernachspülzone, bei der es sich typischerweise um die letzte Spülzone einer Transportgeschirrspülmaschine handelt und einer vorgelagerten Spülzone angeordnet ist. Zum anderen umfasst die erfindungsgemäße Transportgeschirrspülmaschine eine erste Auffangwanne und einen Tank, die so in der Transportgeschirrspülmaschine angeordnet sind, dass das verwendete Wasser optimal eingesetzt und optimal mehrfach verwendet werden kann, wobei insbesondere auch die typischen Flussraten in den verschiedenen Spülzonen berücksichtigt werden.The transport dishwasher according to the invention, on the one hand, used an additional rinsing zone, which is arranged between a fresh water rinsing zone, which is typically the last rinsing zone of a transporting dishwashing machine, and an upstream rinsing zone. On the other hand, the transport dishwasher according to the invention comprises a first sump and a tank, which are arranged in the transport dishwasher so that the water used optimally used and optimal can be used multiple times, taking into account in particular the typical flow rates in the different rinse zones.
So ist eine erste Auffangwanne der Transportgeschirrspülmaschine so ausgebildet und angeordnet, dass sie ausschließlich Wasser auffängt, das in der Frischwasserspülzone über die in dieser Frischwasserspülzone angeordneten Abgabedüsen abgegeben wird.Thus, a first collecting tray of the transporting dishwashing machine is designed and arranged such that it only collects water that is dispensed in the fresh water washing zone via the dispensing nozzles arranged in this fresh water washing zone.
Eine zweite Pumpenvorrichtung ist vorgesehen und so ausgebildet, dass sie das in der ersten Auffangwanne gesammelte Wasser über in der zusätzlichen Nachspülzone angeordnete Abgabedüsen in die zusätzliche Nachspülzone abgegeben kann.A second pumping device is provided and adapted to discharge the water collected in the first sump into the additional post rinse zone via dispensing nozzles located in the additional rinse zone.
Dieses in der zusätzlichen Nachspülzone eingesetzte Wasser ist aufgrund der speziellen Anordnung der ersten Auffangwanne nur sehr gering mit Lauge versetzt, wodurch eine deutliche Reduzierung der Lauge auf dem Spülgut bereits in der zusätzlichen Nachspülzone erreicht wird.This water used in the additional rinsing zone is due to the special arrangement of the first drip pan only very slightly mixed with alkali, whereby a significant reduction of the liquor on the dishes is already achieved in the additional Nachspülzone.
Der Frischwassernachspülzone und der zusätzlichen Nachspülzone ist ferner eine weitere, Spülzone vorgelagert. Diese, bevorzugt direkt vorgelagerte, Spülzone umfasst einen Tank, der jedoch so ausgebildet ist, dass er sowohl Wasser auffängt, das in der zusätzlichen Nachspülzone über die darin angeordneten Abgabedüsen abgegeben wird, als auch Wasser auffängt, das in der direkt vorgelagerten Spülzone abgegeben wird. Dieses in dem Tank aufgefangene Wasser wird über eine dritte Pumpenvorrichtung in die direkt vorgelagerte Spülzone, mittels darin angeordneter Abgabedüsen, abgegeben.The fresh water rinse zone and the additional rinse zone are further preceded by another rinse zone. This, preferably directly upstream, rinse zone comprises a tank which is, however, designed to catch both water delivered in the additional rinse zone via the dispensing nozzles located therein as well as to collect water discharged in the rinse zone immediately upstream. This water collected in the tank is discharged via a third pumping device into the directly upstream rinsing zone by means of dispensing nozzles arranged therein.
Zwar ist dieses in dem Tank gesammelte Wasser aufgrund der Sammlung aus zwei Spülzonen relativ stark mit Lauge versetzt und kann daher nicht zur Laugenreduzierung genutzt werden, allerdings wird durch das Sammeln von Wasser in dem Tank über zwei oder mindestens zwei Spülzonen ein deutlich größeres Volumen sichergestellt, das mittels der dritten Pumpe über das Spülgut geleitet werden kann. Dieses Wasser dient daher insbesondere zum Abspülen von kleinen Schmutzpartikeln, die noch trotz vorangegangener Reinigung auf dem Spülgut verblieben sind.Although this collected in the tank water due to the collection of two rinsing zones is relatively strong mixed with alkali and therefore can not be used for leaching reduction, but by collecting water in the tank over two or at least two rinsing zones ensures a significantly larger volume, which can be passed over the items to be washed by means of the third pump. This water is therefore used in particular for rinsing off small dirt particles that have remained on the items to be washed despite previous cleaning.
Die erfindungsgemäße Transportgeschirrspülmaschine stellt daher eine optimale Lösung zur Verfügung, die sicherstellt, dass die Ressource Wasser zum einen sehr sparsam und, in optimaler Weise, mehrfach verwendet wird, während gleichzeitig optimale Volumina und Volumenströme in den einzelnen Spülzonen sichergestellt werden können.The transport dishwasher according to the invention therefore provides an optimal solution, which ensures that the resource water for a very economical and, in optimal Way, is used repeatedly, while at the same time optimal volumes and flow rates can be ensured in each rinse zones.
Bei einer bevorzugten Ausführungsform ist der Tank zumindest teilweise mit einer Siebvorrichtung abgedeckt. Bei einer besonders bevorzugten Ausführungsform deckt eine solche Siebvorrichtung den Tank komplett ab, wobei diese Siebvorrichtung dabei so ausgebildet ist, dass im Bereich der zusätzlichen Nachspülzone ein geneigtes, geschlossenes Blech vorgesehen ist, während im Bereich der wenigstens einen weiteren vorgelagerten Spülzone die Siebvorrichtung als geneigtes Überstromsieb ausgebildet ist.In a preferred embodiment, the tank is at least partially covered with a screening device. In a particularly preferred embodiment, such a sieve device completely covers the tank, wherein this sieve device is designed so that an inclined, closed sheet is provided in the region of the additional rinsing zone, while in the region of the at least one further upstream rinsing zone, the sieve device as an inclined overflow sieve is trained.
Dies führt dazu, dass das Wasser, das in der zusätzlichen Nachspülzone abgegeben wird und im Bereich der zusätzlichen Nachspülzone auf die Siebvorrichtung fällt, vollständig über das geschlossene, geneigte Blech auf das Überstromsieb im Bereich der direkt vorgelagerten Spülzone geleitet wird.The result of this is that the water which is discharged in the additional rinsing zone and falls onto the screening device in the region of the additional rinsing zone is guided completely over the closed, inclined sheet onto the overflow sieve in the region of the directly upstream rinsing zone.
Dies hat den Vorteil, dass im Bereich des Überstromsiebs ein höherer Volumenstrom erzeugt wird, so dass das Prinzip des Überstromsiebs, nämlich ein Weitertransport von Schmutzpartikeln, die auf dem Sieb liegen, mittels des abfließenden Wassers oberhalb der Überstromsiebs, zuverlässig realisiert und sichergestellt wird.This has the advantage that a higher volume flow is generated in the region of the overflow sieve, so that the principle of the overflow sieve, namely a further transport of dirt particles lying on the sieve, is reliably realized and ensured by means of the outflowing water above the overflow sieve.
Bei einer weiteren bevorzugten Ausführungsform ist auch die erste Auffangwanne mit einer Siebvorrichtung abgedeckt, wobei bevorzugt ein Feinsieb eingesetzt wird, was insbesondere deshalb von Vorteil ist, weil das Wasser, das auf die erste Auffangwanne fällt, noch ziemlich sauber ist und nur sehr wenige Partikel enthält.In a further preferred embodiment, the first collecting trough is covered with a sieve device, preferably a fine sieve is used, which is particularly advantageous because the water that falls on the first sump, is still pretty clean and contains only very few particles ,
Bei einer besonders bevorzugten Ausführungsform ist auch die Siebvorrichtung der ersten Auffangwanne geneigt und so mit der Siebvorrichtung des Tanks gekoppelt, dass Flüssigkeit, die nicht durch die Siebvorrichtung der ersten Auffangwanne in die erste Auffangwanne gelangt, auf die Siebvorrichtung des Tanks geführt wird. Dies hat den Vorteil, dass der Volumenstrom auf dem Überstromsieb im Bereich der vorgelagerten Spülzone noch weiter erhöht wird.In a particularly preferred embodiment, the screening device of the first collecting trough is also inclined and coupled to the sieve device of the tank such that liquid which does not pass through the sieve device of the first collecting trough into the first collecting trough is guided onto the sieve device of the tank. This has the advantage that the volume flow on the overflow strainer in the region of the upstream rinse zone is increased even further.
Bei einer besonders bevorzugten Ausführungsform ist das Überstromsieb der Siebvorrichtung des Tanks im Bereich der direkt nachfolgenden Spülzone so ausgebildet, dass es ein Siebelement und eine Unterwanne umfasst, wobei das Siebelement oberhalb der Unterwanne und mit Abstand von der Unterwanne angeordnet ist. Dadurch entsteht zwischen Unterwanne und Siebelement ein Kanal mit einer Höhe h zum Abführen eines Permeats. Die Unterwanne ist dabei um einen Winkel α zur Horizontalen geneigt, so dass das Permeat aufgrund der Schwerkraft und der Neigung der Unterwanne auf der Unterwanne abfließen kann.In a particularly preferred embodiment, the overflow sieve of the sieve device of the tank in the region of the directly following rinsing zone is formed so that it comprises a sieve element and a lower trough, wherein the sieve element above the lower trough and with Distance from the lower tub is arranged. As a result, a channel with a height h for discharging a permeate is formed between the lower pan and the sieve element. The lower trough is inclined at an angle α to the horizontal, so that the permeate can flow on the lower trough due to gravity and the inclination of the lower trough.
Bevorzugt ist das Siebelement ebenfalls geneigt, und zwar um einen Winkel β, der bevorzugt kleiner ist als der Winkel α oder dem Winkel α entspricht, so dass die Höhe h zwischen Unterwanne und Siebelement in Richtung der Abflussrichtung entweder zunimmt oder sich nicht oder nicht wesentlich ändert.Preferably, the screen element is also inclined, namely by an angle β, which is preferably smaller than the angle α or the angle α corresponds, so that the height h between sub-tray and screen element in the direction of flow either increases or does not change significantly ,
Eine solche Ausgestaltung hat den Vorteil, dass sie das Prinzip des Überstromventils unterstützt, insbesondere kann die Höhe h dabei so ausgebildet sein, dass aufgrund der Volumenströme eine bereits gefilterte Flüssigkeit des Volumenstroms, der das Permeat von unterhalb der Siebfläche durch die Siebfläche nach oben drückt, so dass insbesondere Schmutzteile auf der Oberseite der Siebvorrichtung besser abtransportiert werden. Auch das Anhaften von Schmutzpartikeln oder Fasern auf der Oberfläche der Siebvorrichtung wird durch diesen Effekt vermindert, so dass gleichsam ein Rückspülen bzw. Überströmen der Siebvorrichtung bzw. des Siebelements erzielt wird.Such an embodiment has the advantage that it supports the principle of the overflow valve, in particular the height h can be designed such that due to the volume flows, an already filtered liquid of the volume flow, which presses the permeate from below the sieve surface through the sieve surface, so that in particular dirt particles on the top of the screening device are better transported away. The adhesion of dirt particles or fibers on the surface of the sieve device is also reduced by this effect, so that, as it were, backwashing or overflowing of the sieve device or sieve element is achieved.
Ist die Siebvorrichtung so ausgebildet, dass die Höhe h in Abflussrichtung zunimmt, wird auf diese Weise vorteilhaft genutzt, dass natürlich das Gesamtvolumen bzw. der Volumenstrom in Richtung der Abflussrichtung zunimmt, weil zusätzliches Wasser durch das Siebelement gelangt, so dass die Höhe der bereits gefilterten Flüssigkeit unterhalb des Siebelements und auf der Unterwanne in Richtung der Abflussrichtung zunimmt. Dadurch wird sichergestellt, dass die Siebvorrichtung optimal auf die Volumenströme angepasst ist und die Ressource Wasser sehr sorgfältig und optimal genutzt wird, wobei zum einen sichergestellt wird, dass das Überstromprinzip und das "Rückspülen" des Siebelements sichergestellt wird, während gleichzeitig vermieden wird, dass zu viel Wasser oberhalb des Siebelements verbleibt und nicht als Permeat genutzt werden kann.If the sieve device is designed such that the height h increases in the direction of outflow, it is advantageously used in this way that, of course, the total volume or the volume flow increases in the direction of the outflow direction, because additional water passes through the sieve element, so that the height of the already filtered Liquid increases below the sieve element and on the lower sump in the direction of the outflow direction. This ensures that the screening device is optimally adapted to the volume flows and that the resource water is used very carefully and optimally, on the one hand ensuring that the overflow principle and the "backwashing" of the sieve element is ensured, while at the same time avoiding a lot of water remains above the sieve element and can not be used as permeate.
Bei einer weiteren Ausführungsform sind die Abgabedüsen in der direkt vorgelagerten Spülzone und/oder die dritte Pumpenvorrichtung so ausgebildet, dass in der direkt vorgelagerten Spülzone eine Flussrate (des abgegebenen Wassers) erzielt wird, die größer ist als die Flussrate in der Frischwassernachspülzone oder der zusätzlichen Nachspülzone. Dies stellt sicher, dass in diesem Bereich der direkt vorgelagerten Spülzone die gewünschten Volumenströme sichergestellt werden, während gleichzeitig auf besonders effektive Weise das Wasser aus der Frischwassernachspülzone und der zusätzlichen Nachspülzone, die geringere Volumenströme umfassen, für die direkt vorgelagerte Spülzone genutzt werden können.In a further embodiment, the dispensing nozzles in the directly upstream rinsing zone and / or the third pumping device are designed to achieve a flow rate (of discharged water) greater than the flow rate in the fresh water rinse zone or the additional rinse zone in the immediately upstream rinse zone , This ensures that in this area of the directly upstream rinsing zone the desired volume flows be ensured, while at the same time in a particularly effective manner, the water from the fresh water rinse zone and the additional Nachspülzone comprising lower flow rates can be used for the directly upstream rinse zone.
Bevorzugt sind die Frischwassernachspülzone und die zusätzliche Nachspülzone durch eine Trennvorrichtung zumindest teilweise voneinander separiert. Bei einer besonders vorteilhaften Ausführungsform kann die Trennvorrichtung durch ein oder mehrere Wandelemente realisiert werden, die sich von einem Bodenbereich der Frischwassernachspülzone und/oder der zusätzlichen Nachspülzone in vertikaler Richtung erstrecken, wobei insbesondere die Höhe bzw. die Erstreckung in vertikaler Richtung optimal an die gewünschten Gegebenheiten angepasst werden kann.The fresh water rinsing zone and the additional rinsing zone are preferably at least partially separated from one another by a separating device. In a particularly advantageous embodiment, the separating device can be realized by one or more wall elements which extend from a bottom region of the fresh water rinsing zone and / or the additional rinsing zone in the vertical direction, wherein in particular the height or the extent in the vertical direction optimally to the desired conditions can be adjusted.
In Zusammenhang mit der Beschreibung ist darauf hinzuweisen, dass der Begriff "Wasser" auch allgemein Flüssigkeiten umfassen kann, insbesondere gegebenenfalls Wasser mit Zusätzen oder auch behandeltes, beispielsweise enthärtetes Wasser.In connection with the description, it should be noted that the term "water" may also generally include liquids, in particular optionally water with additives or also treated, for example softened water.
Diese und weitere Merkmale und Vorteile der Erfindung werden anhand der nachfolgenden Beschreibung einer bevorzugten Ausführungsform besonders deutlich.
-
Fig. 1 zeigt eine schematische Funktionsdarstellung der wesentlichen Teile einer erfindungsgemäßen Transportgeschirrspülmaschine.
-
Fig. 1 shows a schematic functional representation of the essential parts of a transport dishwasher according to the invention.
Die Transportgeschirrspülmaschine 10 umfasst eine Frischwassernachspülzone 100 mit in dieser Zone angeordneten Abgabedüsen 110, eine zusätzliche Nachspülzone 200 mit in der Nachspülzone angeordneten Abgabedüsen 210 und eine weitere, vorgelagerte Spülzone 300 mit darin angeordneten Abgabedüsen 310. In der schematischen Darstellung sind lediglich zwei Abgabedüsen je Zone gezeigt, jeweils eine Abgabedüse, die das Spülgut von oben beaufschlagt und eine Abgabedüse, die das Spülgut von unten beaufschlagt, aber selbstverständlich kann eine erfindungsgemäße Transportgeschirrspülmaschine auch eine Mehrzahl von Düsen in jeder Spülzone und in verschiedenen Positionen, beweglich oder fixiert, umfassen. Die Frischwassernachspülzone 100 erhält Frischwasser aus dem beheizbaren Boiler 20, wobei das Frischwasser mit einer Pumpe 25 aus dem Boiler 20 gepumpt und den Abgabedüsen 110 zugeführt wird.The
Das von den Abgabedüsen 110 abgegebene Wasser wird von einer ersten Auffangwanne 120 aufgefangen, die mit einer Siebvorrichtung 140, hier einem Feinsieb, abgedeckt ist. Die Transportgeschirrspülmaschine 10 und die erste Auffangwanne 120 sind dabei so ausgebildet und angeordnet, dass ausschließlich Wasser, das von den Abgabedüsen 110 in der Frischwassernachspülzone 100 abgegeben wird, aufgefangen werden kann, nicht jedoch Wasser oder Flüssigkeit aus anderen Spülzonen.The water discharged from the dispensing
Das in der ersten Auffangwanne 120 aufgefangene Wasser kann über eine Pumpe 125 zu weiteren Abgabedüsen 210 in der zusätzlichen Nachspülzone 200 transportiert werden.The water collected in the
Die in
Die Siebvorrichtung 240 umfasst mehrere Bereiche, wobei die Siebvorrichtung 240 in dem Bereich der zusätzlichen Nachspülzone 200 ein geneigtes, geschlossenes Blech 250 aufweist, während die Siebvorrichtung 240 im Bereich der direkt vorgelagerten Spülzone 300 eine Siebvorrichtung 260 umfasst, die als geneigtes Überstromsieb ausgebildet ist.The
Die als Überstromsieb ausgebildete Siebvorrichtung 260 umfasst eine Unterwanne 262 und ein Siebelement 264, das oberhalb der Unterwanne ausgebildet ist, so dass zwischen Unterwanne 262 und Siebelement 240 ein Kanal mit einer Höhe h zum Abführen des Permeats gebildet wird. Bei dieser Ausführungsform beträgt die Höhe h 0,5 cm, wobei je nach Ausführung der Transportgeschirrspülmaschine und insbesondere der üblichen Volumenströme auch unterschiedliche Ausgestaltungen möglich sind, bei denen die Höhe h zwischen Unterwanne 262 und Siebelement 264 variiert, insbesondere zwischen 0,1 cm und 5,0 cm.The
Wasser, das über die Abgabedüsen 210 in der zusätzlichen Nachspülzone 200 abgegeben wird, gelangt auf die Siebvorrichtung 240 und wird über das geneigte, geschlossene Blech 250 auf die als Überstromsieb ausgebildete Siebvorrichtung 260 weitergeleitet.Water discharged via the dispensing
Wasser, das von den Abgabedüsen 310 der vorgelagerten Spülzone 300 abgegeben wird, gelangt ebenfalls auf die Siebvorrichtung 240, wobei das Wasser aus der vorgelagerten Spülzone 300 direkt auf die als Überstromsieb ausgebildete Siebvorrichtung gelangt.Water, which is discharged from the
In dem Tank 220 wird daher Wasser (bzw. eine Flüssigkeit) gesammelt, das sowohl über die entsprechenden Abgabedüsen 210 in der zusätzlichen Nachspülzone abgegeben werden wird, als auch Wasser, das über die Abgabedüsen 310 in der vorgelagerten Spülzone 300 abgegeben wird.In the
Das in dem Tank gesammelte Wasser wird über eine Pumpe 225 den Abgabedüsen 310 in der vorgelagerten Spülzone 300 zugeführt und gelangt nach Abgabe erneut auf die Siebvorrichtung 260, so dass ein (teilweiser) Kreislauf entsteht.The water collected in the tank is fed via a
Zwischen der Frischwassernachspülzone 100 und der zusätzlichen Nachspülzone 200 ist ferner eine Trennvorrichtung 150 vorgesehen, die in
Die Trennwand bzw. Trennvorrichtung 150 ist so ausgebildet, dass das Eindringen von Spritzwasser aus der vorgelagerten Spülzone oder aus der zusätzlichen Nachspülzone entweder vollständig verhindert wird, oder aber zumindest weitgehend vermieden wird.The partition or
Bei der in
Diese und weitere in der vorstehenden Beschreibung, den Ansprüchen und der Zeichnung offenbarten Merkmale können sowohl einzeln als auch in beliebiger Kombination für die Ausführung der Erfindung in ihren verschiedenen Ausgestaltungen von Bedeutung sein.These and other features disclosed in the foregoing description, claims and drawings may be relevant to the practice of the invention in its various forms both individually and in any combination thereof.
Claims (12)
dadurch gekennzeichnet, dass
zwischen der Frischwassernachspülzone (100) und der mindesten einen weiteren vorgelagerten Spülzone (300) eine zusätzliche Nachspülzone (200) angeordnet ist,
wobei die Transportgeschirrspülmaschine (10) eine erste Auffangwanne (120) umfasst, die so ausgebildet und angeordnet ist, dass sie ausschließlich Wasser auffängt, das in der Frischwassernachspülzone (100) über die darin angeordneten Abgabedüsen (110) abgegeben wird,
wobei ferner eine zweite Pumpenvorrichtung (125) vorgesehen ist, die das in der ersten Auffangwanne (120) gesammelte Wasser über in der zusätzlichen Nachspülzone (200) angeordnete Abgabedüsen (210) in die zusätzliche Nachspülzone (200) abgibt,
wobei die Transportgeschirrspülmaschine (10) ferner einen Tank (220) umfasst, der so ausgebildet und angeordnet ist, dass er sowohl Wasser auffängt, das in der zusätzlichen Nachspülzone (200) über die darin angeordneten Abgabedüsen (210) abgegeben wird, als auch Wasser auffängt, das in der direkt vorgelagerten Spülzone (300) der mindestens einen weiteren vorgelagerten Spülzonen abgegeben wird,
wobei eine dritte Pumpenvorrichtung (225) vorgesehen ist, die das in dem Tank (220) gesammelte Wasser über in der direkt vorgelagerten Spülzone (300) angeordnete Abgabedüsen (310) abgibt.A conveyorized dishwasher (10) having a fresh water rinse zone (100) and at least one further upstream rinse zone (300), the conveyor dishwasher (10) including a boiler (20) for receiving and heating fresh water and a first pumping device (25) thus formed in that fresh water from the boiler (20) can be discharged into the fresh water rinse zone (100) via dispensing nozzles (110) arranged in the fresh water rinse zone (100),
characterized in that
between the fresh water rinse zone (100) and the at least one further upstream rinse zone (300) an additional rinse zone (200) is arranged,
the transport dishwashing machine (10) comprising a first sump (120) configured and arranged to only collect water delivered in the fresh water flushing zone (100) via the dispensing nozzles (110) disposed therein,
further comprising a second pump device (125) which discharges the water collected in the first drip pan (120) into the additional final rinse zone (200) via dispensing nozzles (210) arranged in the additional final rinse zone (200),
wherein the transport dishwashing machine (10) further comprises a tank (220) arranged and arranged to catch both water dispensed in the additional post rinse zone (200) via dispensing nozzles (210) disposed therein and to collect water which is discharged in the immediately preceding rinse zone (300) of the at least one further upstream rinse zone,
wherein a third pump device (225) is provided, which discharges the water collected in the tank (220) via dispensing nozzles (310) arranged in the directly upstream rinsing zone (300).
wobei das Siebelement (264) um einen Winkel β zur Horizontalen geneigt ist, der kleiner ist als der Winkel α oder dem Winkel α entspricht, so dass die Höhe h zwischen Unterwanne (262) und Siebelement (264) in Richtung der Abflussrichtung zunimmt oder gleich groß bleibt.Transport dishwashing machine according to one of claims 3 to 5, characterized in that the overflow sieve (260) of the sieve device (240) of the tank (220) in the region of the immediately following rinsing zone (300) comprises a sieve element (264) and an underpan (262), wherein the screen element (264) is arranged above the lower sump (262) and at a distance from the lower sump (262) so that a channel with a height h for discharging a permeate is formed between the lower sump (262) and sieve element (264) the lower trough (262) by an angle α to the horizontal is inclined, so that the permeate can flow on the lower trough (262) due to the gravity and the inclination of the lower trough (262),
wherein the screen element (264) is inclined by an angle β to the horizontal, which is smaller than the angle α or the angle α, so that the height h between the lower trough (262) and sieve (264) increases in the direction of the outflow direction or equal stays big.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102014114719.7A DE102014114719A1 (en) | 2014-10-10 | 2014-10-10 | Conveyor dishwasher |
Publications (2)
Publication Number | Publication Date |
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EP3005928A1 true EP3005928A1 (en) | 2016-04-13 |
EP3005928B1 EP3005928B1 (en) | 2017-12-20 |
Family
ID=54292668
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP15189056.3A Active EP3005928B1 (en) | 2014-10-10 | 2015-10-09 | Transport dishwasher |
Country Status (3)
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EP (1) | EP3005928B1 (en) |
DE (1) | DE102014114719A1 (en) |
ES (1) | ES2661291T3 (en) |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE877852C (en) * | 1951-06-05 | 1953-05-28 | Miag Vertriebs Gmbh | Sieve |
DE4319688A1 (en) * | 1993-06-15 | 1994-12-22 | Stierlen Maquet Ag | Cleaning machine, in particular for dishes |
DE102005015157A1 (en) * | 2005-04-02 | 2006-10-05 | Premark Feg L.L.C., Wilmington | Multitank-transportation dishwasher e.g. tape transportation dishwasher for washing goods, has liquid recirculation device transferring liquid of front cleaning area into rear cleaning area against feeding direction |
EP1815779A2 (en) * | 2006-02-03 | 2007-08-08 | Premark FEG L.L.C. | Conveyor dishwasher |
FR2908033A1 (en) * | 2006-11-03 | 2008-05-09 | Elbeuviennes De Materiels Pour | DISHWASHER WASHING MACHINE AND METHOD FOR PREWASH REGULATION |
DE102007007134A1 (en) * | 2007-02-13 | 2008-08-14 | Meiko Maschinenbau Gmbh & Co.Kg | Filter for cleaning machines |
DE102009024569A1 (en) | 2009-06-08 | 2011-04-07 | Premark Feg L.L.C., Wilmington | Transport dishwasher for rinsing items to be washed and method for operating such a conveyor dishwasher |
EP2510863A1 (en) * | 2011-04-11 | 2012-10-17 | Chemische Fabrik Dr. Weigert GmbH & Co. KG | Variable direct spraying |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005008987B3 (en) * | 2005-02-28 | 2006-06-01 | Meiko Maschinenbau Gmbh & Co.Kg | Multiple tank dishwasher with water return device which returns water from the dirty water chamber to the clean water chamber via a filter wall |
-
2014
- 2014-10-10 DE DE102014114719.7A patent/DE102014114719A1/en not_active Withdrawn
-
2015
- 2015-10-09 ES ES15189056.3T patent/ES2661291T3/en active Active
- 2015-10-09 EP EP15189056.3A patent/EP3005928B1/en active Active
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE877852C (en) * | 1951-06-05 | 1953-05-28 | Miag Vertriebs Gmbh | Sieve |
DE4319688A1 (en) * | 1993-06-15 | 1994-12-22 | Stierlen Maquet Ag | Cleaning machine, in particular for dishes |
DE102005015157A1 (en) * | 2005-04-02 | 2006-10-05 | Premark Feg L.L.C., Wilmington | Multitank-transportation dishwasher e.g. tape transportation dishwasher for washing goods, has liquid recirculation device transferring liquid of front cleaning area into rear cleaning area against feeding direction |
EP1815779A2 (en) * | 2006-02-03 | 2007-08-08 | Premark FEG L.L.C. | Conveyor dishwasher |
FR2908033A1 (en) * | 2006-11-03 | 2008-05-09 | Elbeuviennes De Materiels Pour | DISHWASHER WASHING MACHINE AND METHOD FOR PREWASH REGULATION |
DE102007007134A1 (en) * | 2007-02-13 | 2008-08-14 | Meiko Maschinenbau Gmbh & Co.Kg | Filter for cleaning machines |
DE102009024569A1 (en) | 2009-06-08 | 2011-04-07 | Premark Feg L.L.C., Wilmington | Transport dishwasher for rinsing items to be washed and method for operating such a conveyor dishwasher |
EP2510863A1 (en) * | 2011-04-11 | 2012-10-17 | Chemische Fabrik Dr. Weigert GmbH & Co. KG | Variable direct spraying |
Also Published As
Publication number | Publication date |
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DE102014114719A1 (en) | 2016-04-14 |
EP3005928B1 (en) | 2017-12-20 |
ES2661291T3 (en) | 2018-03-28 |
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