EP2545839B1 - Verbesserte mehrstufige Spülstation für Tunnelgeschirrspüler, und mit einer solchen Station ausgestatteter Tunnelgeschirrspüler - Google Patents

Verbesserte mehrstufige Spülstation für Tunnelgeschirrspüler, und mit einer solchen Station ausgestatteter Tunnelgeschirrspüler Download PDF

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Publication number
EP2545839B1
EP2545839B1 EP12176400.5A EP12176400A EP2545839B1 EP 2545839 B1 EP2545839 B1 EP 2545839B1 EP 12176400 A EP12176400 A EP 12176400A EP 2545839 B1 EP2545839 B1 EP 2545839B1
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EP
European Patent Office
Prior art keywords
rinsing
draining
module
nozzles
tank
Prior art date
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Active
Application number
EP12176400.5A
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English (en)
French (fr)
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EP2545839B2 (de
EP2545839A1 (de
Inventor
Luciano Berti
Marco Colombo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ali Group SRL
Original Assignee
Comenda Ali SpA
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Application filed by Comenda Ali SpA filed Critical Comenda Ali SpA
Priority to EP14198104.3A priority Critical patent/EP2881028B1/de
Priority to PL12176400T priority patent/PL2545839T3/pl
Publication of EP2545839A1 publication Critical patent/EP2545839A1/de
Application granted granted Critical
Publication of EP2545839B1 publication Critical patent/EP2545839B1/de
Publication of EP2545839B2 publication Critical patent/EP2545839B2/de
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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
    • A47L15/4291—Recovery arrangements, e.g. for the recovery of energy or water

Definitions

  • the present invention refers to a multistage rinsing module for tunnel dishwashers and to a tunnel dishwasher that is provided with such a module.
  • the present invention refers to a multistage rinsing module for tunnel dishwashers that is capable of carrying out a preliminary pre-rinsing cycle before the final rinsing of the dishes.
  • wash machine we mean all those dishwashers in which the dishes are moved so as to go, in succession, through a plurality of operation steps such as the pre-washing, washing, pre-rinsing and final rinsing steps.
  • FIG. 1 One example of a tunnel dishwasher of the known type is shown in figure 1 in which reference numerals 101, 102, 103 and 104 indicate the pre-washing station, the first and second washing stations and the rinsing station.
  • the rinsing station 104 comprises two substations 105 and 106 inside of it for pre-rinsing and final rinsing, respectively.
  • a neutral zone 107 is provided, visible in figure 2 , which is useful for draining the water "with detergent" from the dishes.
  • the water that is used for the pre-rinsing to be, at least partially, the same water used in the previous rinsing cycle.
  • Such a method of re-using water in the pre-rinsing step that was previously used for rinsing allows to significantly reduce the consumption of water from the net and, therefore, also the consumption related to energy, detergent and rinse aid.
  • EP1815779 has the drawback of conveying the solutions delivered by many nozzles, for example those for rinsing and those for pre-rinsing, in the same tank thus making the independent analysis of the various rinsing steps present in the dishwasher difficult.
  • Patent application WO10144307 indeed describes a tunnel machine of the type described above, or rather a machine that recycles the water previously used for rinsing in the pre-rinsing step of the following cycle, in which it is further provided for the sensors arranged actually inside the tank in which such water to be re-used is collected.
  • such sensors are connected to a control unit which controls a possible increase of detergent in the washing step, wherein said increase is a function of some parameters measured in the collection tank.
  • DE4100164 discloses another example of a multistage tunnel dishwasher according to the prior art.
  • the purpose of the present invention is that of making a multistage rinsing module for tunnel dishwashers that is capable of solving, in a different manner with respect to the prior art, the problems relative to the decreasing of the consumption of net water without jeopardising the overall efficiency of the washing cycle.
  • reference numeral 10 shows one embodiment of a multistage rinsing module for tunnel dishwashers according to the present invention.
  • a module or multistage rinsing station 10 comprises in succession from upstream to downstream following the movement of the dishes three independent zones: a draining zone 11 of the dishes full of detergent, a pre-rinsing zone 12 of the drained dishes and a final rinsing zone 13 of the drained and pre-rinsed dishes, respectively.
  • the final rinsing zone 13 is provided with rinsing nozzles 14 for delivering net water 15 and a pre-rinsing tank 18 for exclusively collecting the net water 15 delivered by the rinsing nozzles 14.
  • the pre-rinsing zone 12 is provided with pre-rinsing nozzles 16 for delivering the pre-rinsing solution 17 collected in the pre-rinsing tank 18.
  • the pre-rinsing solution 17 therefore consists of the net water 15 used in the preceding cycle during the rinsing step and the substances removed from the rinsed dishes.
  • the pre-rinsing zone 12 is also provided with a draining tank 21 for exclusively collecting the pre-rinsing solution 17 delivered by the pre-rinsing nozzles 16.
  • the draining solution 21 contained in the draining tank 21 thus consists of the pre-rinsing solution 17 used in the preceding cycle during the pre-rinsing step and the substances removed from the pre-rinsed dishes.
  • cycle is used to indicate all the actions which are carried out in succession on the dishes from when they are introduced to when they come out from the machine.
  • cycle is not an actual cycle but rather a series of operations that are carried out in succession, in different work stations or modules, on moving dishes.
  • the draining zone 11 is not a passive zone in which there is no forced rinsing action on the stopped or transiting dishes, but rather, contrary to the current state of the art, it is provided with draining nozzles 19 for delivering the previously described draining solution 20 collected in a draining tank 21.
  • draining nozzles 19 are configured so as to create a jet having speed, flow-rate, nebulization characteristics such as to generate the drawing of water with detergent present on the dishes, thus amplifying the draining effect which would otherwise occur only through gravity or by simple dilution.
  • Such a draining solution 21 consists of the pre-rinsing solution 17 used in the preceding pre-rinsing cycle and of the substances removed from the pre-rinsed dishes.
  • the draining zone 11 is moreover provided with a discharge tank 31 for exclusively collecting the draining solution 20 delivered by the draining nozzles 19 and connected to the net 32 for discharging the discharge solution 30 collected in it.
  • every zone 11, 12, 13 is made independent from the others by means of barrier elements 33, 34 placed between the tanks 18, 21, 31 so as to ensure that the solutions delivered by the nozzles of a particular zone are collected in a particular tank without mixing together, for example, the net water used with the pre-rinsing solution.
  • Such an embodiment offers an alternative solution to that described in EP18715779 in which the rinsing and pre-rinsing nozzles deliver net water and the pre-rinsing solution, respectively, in the same tank.
  • the invention foresees independent separate tanks, it is possible to independently control the single zones of the rinsing station, thus being able to selectively act upon the net delivery or on the pumps 23, 24 according to the requirements, through suitable sensors.
  • another special aspect of the invention consists in the fact that the discharge tank 31 in which the solution delivered by the draining nozzles 19 is collected does not foresee any return delivery to other nozzles but only the total or partial discharge to the net.
  • the module 10 also comprises warming means 22, such as a boiler, for warming the net water 15, a pre-rinsing pump 23 that is connected to the pre-rinsing tank 18 for the delivery of a pre-rinsing solution 17 under pressure to the pre-rinsing nozzles 16 and a draining pump 24 connected to the draining tank 21 for the delivery in pressure of the draining solution 20 to the draining nozzles 19.
  • warming means 22 such as a boiler
  • Further warming means can also be foreseen acting on the solution contained in the draining tank 21 and/or in the pre-rinsing tank 18.
  • pre-rinsing nozzle 16' that is mobile between the pre-rinsing zone 12 and the draining zone 11.
  • a different retroactive control system is foreseen obtained with sensors for measuring the properties of the draining 21 and pre-rinsing 17 solutions.
  • Such sensors are indeed connected to a unit for controlling the delivery of the net water 15 and of the pumps 23, 24 so as to calibrate, cycle by cycle, the correct amount of net water to be used as well as the delivery flow of the nozzles 19 and 16.
  • control unit when indicated by the aforementioned sensors, controls an increase of the amount of clean net water 15 so as to ensure a correct final rinsing.
  • the control unit when indicated by the aforementioned sensors, controls a decrease in the amount of clean net water 15 delivered for rinsing with relative saving in terms of energy consumption and rinse aid consumption.
  • control parameter it is possible to select at least one of the following indexes, or rather the Ph, the conductivity and/or turbidity of the draining 21 and pre-rinsing 17 solutions.
  • level sensors of the solutions contained in the draining 21 and pre-rinsing 18 tanks connected to a unit for controlling further delivery of the net water 15 in the case in which the levels detected are below threshold values that have been determined a priori or that can be determined each time according to the cases.
  • a multistage rinsing module for tunnel dishwashers according to the present invention, object of the invention, operates.
  • a pre-rinsing solution 17 is used comprising the net water 15 used in the preceding rinsing cycle and the substances removed from the rinsed dishes.
  • a draining solution 20 is delivered comprising the pre-rinsing solution 17 used in the preceding pre-rinsing cycle and the substances removed from the pre-rinsed dishes.
  • a multistage rinsing module for tunnel dishwashers achieves the purposes previously highlighted.
  • the multistage rinsing module for tunnel dishwashers according to the present invention makes it possible to reduce the consumption of net water in the rinsing step without jeopardising the overall efficiency of the washing cycle by integrating an active step of the rinsing station into the natural draining step.
  • the multistage rinsing module for tunnel dishwashers may undergo numerous modifications and variants, all covered by the same inventive concept, as defined by the appended claims; moreover, all the details can be replaced by technically equivalent elements.
  • the materials used, as well as their dimensions may be any according to the technical requirements.

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  • Washing And Drying Of Tableware (AREA)
  • Drying Of Solid Materials (AREA)
  • Cleaning By Liquid Or Steam (AREA)

Claims (10)

  1. Mehrstufige Spülstation (10) für Tunnelgeschirrspüler (100), die nacheinander von stromaufwärts nach stromabwärts der Bewegung des Geschirrs folgend drei unabhängige Zonen umfasst, und zwar:
    - eine Drainagezone (11) für das Geschirr voller Spülmittel, das in dieser Station (10) zugeführt wird,
    - eine Vorspülzone (12) für das drainierte Geschirr,
    - eine Klarspülzone (13) für das drainierte und vorgespülte Geschirr; wobei
    - diese Klarspülzone (13) mit Spüldüsen (14) zum Zuführen von Leitungswasser (15) und mit einem Vorspültank (18) zum ausschließlichen Sammeln dieses Leitungswassers (15) versehen ist, das von den Spüldüsen (14) zugeführt wird;
    - diese Vorspülzone (12) mit Vorspüldüsen (16) zum Zuführen einer Vorspüllösung (17), die in dem Vorspültank (18) gesammelt wird, und mit einem Ablauftank (21) zum ausschließlichen Sammeln dieser Vorspüllösung (17) versehen ist, die von den Vorspüldüsen (16) zugeführt wird,
    - diese Drainagezone (11) mit Drainagedüsen (19) zum Zuführen der Drainagelösung (20), die in einem Drainagetank (21) gesammelt wird, und mit einem Ablauftank (31) zum ausschließlichen Sammeln der Drainagelösung (20) versehen ist, die von den Drainagedüsen (19) zugeführt wird;
    - dieser Drainagetank (31) nur zum Ableiten der Ablauflösung (30) mit dem Netz (32) verbunden ist; Barriereelemente (33, 34) zwischen den Trennzonen dieser Tanks (18, 21, 31) vorgesehen sind;
    wobei diese Drainagedüsen (19) gestaltet sind, um diese Drainagelösung (20) mit einer Durchflussmenge und einer Geschwindigkeit zuzuführen, die größer als die der Vorspüllösung (17) und des Leitungswassers (15) sind, die von den Vorspüldüsen (16) und von den Spüldüsen (14) zugeführt werden.
  2. Mehrstufige Spülstation (10) nach Anspruch 1, dadurch gekennzeichnet, dass sie Mittel (22) zum Erwärmen des Leitungswassers (15), eine mit einem Vorspültank (18) verbundene Vorspülpumpe (23) zum Versorgen der Vorspüldüsen (16) mit der Vorspüllösung (17) und eine mit einem Drainagetank (21) verbundene Drainagepumpe (24) zum Versorgen der Drainagedüsen (19) mit der Drainagelösung (20) umfasst.
  3. Mehrstufige Spülstation (10) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass sie ferner Erwärmungsmittel umfasst, die auf die Lösungen einwirken, die im Drainagetank (21) und/oder im Vorspültank (18) enthalten sind.
  4. Mehrstufige Spülstation (10) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass sie eine weitere Vorspüldüse (16') umfasst, die von der Vorspülzone (12) zur Drainagezone (11) bewegt werden kann.
  5. Mehrstufige Spülstation (10) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass sie Sensoren zum Messen der Eigenschaften der Drainage- (21) und Vorspül- (17) -Lösungen umfasst, die an eine Einheit zum Steuern sowohl der Zufuhr des Leitungswassers (15) als auch des Vorschubs des Geschirrs in der Station (10) angeschlossen sind.
  6. Mehrstufige Spülstation (10) nach Anspruch 5, dadurch gekennzeichnet, dass die Sensoren Sensoren zum Messen des pH-Werts der Drainage- (21) und Vorspül- (17) -lösungen sind.
  7. Mehrstufige Spülstation (10) nach Anspruch 5, dadurch gekennzeichnet, dass die Sensoren Sensoren zum Messen der Leitfähigkeit der Drainage- (21) und Vorspül- (17) -lösungen sind.
  8. Mehrstufige Spülstation (10) nach Anspruch 5, dadurch gekennzeichnet, dass die Sensoren Sensoren zum Messen der Trübung der Drainage- (21) und Vorspül- (17) -lösungen sind.
  9. Mehrstufige Spülstation (10) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass sie Niveausensoren für die im Drainagetank (21) und/oder im Vorspültank (18) enthaltenen Lösungen umfasst, die an eine Einheit zum Steuern der Zufuhr des Leitungswassers (15) angeschlossen sind.
  10. Tunnelgeschirrspüler (100), der nacheinander von stromaufwärts nach stromabwärts der Bewegung des Geschirrs folgend eine Vorreinigungsstation (101), mindestens eine Reinigungsstation (102, 103) und eine mehrstufige Spülstation (10) nach einem der vorhergehenden Ansprüche umfasst.
EP12176400.5A 2011-07-15 2012-07-13 Verbesserte mehrstufige Spülstation für Tunnelgeschirrspüler, und mit einer solchen Station ausgestatteter Tunnelgeschirrspüler Active EP2545839B2 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP14198104.3A EP2881028B1 (de) 2011-07-15 2012-07-13 Verbessertes mehrstufiges Spülmodul für Tunnelgeschirrspüler und Tunnelgeschirrspüler mit solch einem Modul
PL12176400T PL2545839T3 (pl) 2011-07-15 2012-07-13 Udoskonalony wielostopniowy moduł płuczący do tunelowych zmywarek do naczyń i tunelowa zmywarka do naczyń wyposażona w taki moduł

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT001324A ITMI20111324A1 (it) 2011-07-15 2011-07-15 Modulo di risciacquo multistadio perfezionato per macchine lavastoviglie a tunnel, e macchina lavastoviglie a tunnel dotata di tale modulo

Related Child Applications (2)

Application Number Title Priority Date Filing Date
EP14198104.3A Division-Into EP2881028B1 (de) 2011-07-15 2012-07-13 Verbessertes mehrstufiges Spülmodul für Tunnelgeschirrspüler und Tunnelgeschirrspüler mit solch einem Modul
EP14198104.3A Division EP2881028B1 (de) 2011-07-15 2012-07-13 Verbessertes mehrstufiges Spülmodul für Tunnelgeschirrspüler und Tunnelgeschirrspüler mit solch einem Modul

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EP2545839A1 EP2545839A1 (de) 2013-01-16
EP2545839B1 true EP2545839B1 (de) 2015-02-11
EP2545839B2 EP2545839B2 (de) 2022-04-27

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EP12176400.5A Active EP2545839B2 (de) 2011-07-15 2012-07-13 Verbesserte mehrstufige Spülstation für Tunnelgeschirrspüler, und mit einer solchen Station ausgestatteter Tunnelgeschirrspüler
EP14198104.3A Revoked EP2881028B1 (de) 2011-07-15 2012-07-13 Verbessertes mehrstufiges Spülmodul für Tunnelgeschirrspüler und Tunnelgeschirrspüler mit solch einem Modul

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EP14198104.3A Revoked EP2881028B1 (de) 2011-07-15 2012-07-13 Verbessertes mehrstufiges Spülmodul für Tunnelgeschirrspüler und Tunnelgeschirrspüler mit solch einem Modul

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EP (2) EP2545839B2 (de)
ES (2) ES2594346T3 (de)
IT (1) ITMI20111324A1 (de)
PL (1) PL2545839T3 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20111324A1 (it) † 2011-07-15 2013-01-16 Comenda Ali S P A Modulo di risciacquo multistadio perfezionato per macchine lavastoviglie a tunnel, e macchina lavastoviglie a tunnel dotata di tale modulo
ITMI20130300A1 (it) * 2013-02-28 2014-08-29 Comenda Ali S P A Macchina lavastoviglie perfezionata con risciacquo finale ad acqua demineralizzata
ITUB20161089A1 (it) * 2016-02-26 2017-08-26 Ali Group S R L Metodo per la sanificazione di stoviglie a basso consumo d’acqua e relativa macchina lavastoviglie a ciclo o a tunnel.
CN113633239A (zh) * 2021-07-13 2021-11-12 湖南洗唰唰智能洗净设备有限责任公司 一种除渣机及除渣工艺

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Also Published As

Publication number Publication date
EP2545839B2 (de) 2022-04-27
ITMI20111324A1 (it) 2013-01-16
EP2545839A1 (de) 2013-01-16
EP2881028B1 (de) 2016-06-29
PL2545839T3 (pl) 2015-10-30
ES2536440T5 (es) 2022-08-03
ES2536440T3 (es) 2015-05-25
EP2881028A1 (de) 2015-06-10
ES2594346T3 (es) 2016-12-19

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