EP2545839B2 - Station de rinçage à plusieurs étages améliorée pour lave-vaisselle à tunnel, et lave-vaisselle à tunnel équipé d'une telle station - Google Patents

Station de rinçage à plusieurs étages améliorée pour lave-vaisselle à tunnel, et lave-vaisselle à tunnel équipé d'une telle station Download PDF

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Publication number
EP2545839B2
EP2545839B2 EP12176400.5A EP12176400A EP2545839B2 EP 2545839 B2 EP2545839 B2 EP 2545839B2 EP 12176400 A EP12176400 A EP 12176400A EP 2545839 B2 EP2545839 B2 EP 2545839B2
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EP
European Patent Office
Prior art keywords
rinsing
draining
module
nozzles
tank
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Application number
EP12176400.5A
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German (de)
English (en)
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EP2545839A1 (fr
EP2545839B1 (fr
Inventor
Luciano Berti
Marco Colombo
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Ali Group SRL
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Ali Group SRL
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Application filed by Ali Group SRL filed Critical Ali Group SRL
Priority to PL12176400T priority Critical patent/PL2545839T3/pl
Priority to EP14198104.3A priority patent/EP2881028B1/fr
Publication of EP2545839A1 publication Critical patent/EP2545839A1/fr
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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.
  • 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 (9)

  1. Station de rinçage à plusieurs étages (10) pour lave-vaisselle à tunnel (100) du type comprenant en succession, d'amont en aval suivant le déplacement de la vaisselle, trois zones indépendantes, respectivement :
    - une zone de drainage (11) de la vaisselle pleine de détergent alimentée dans ladite station (10),
    - une zone de pré-rinçage (12) de ladite vaisselle drainée,
    - une zone de rinçage final (13) de ladite vaisselle drainée et pré-rincée ; dans laquelle
    - ladite zone de rinçage final (13) étant équipée de buses de rinçage (14) pour distribuer de l'eau de réseau (15) et un réservoir de pré-rinçage (18) pour recueillir exclusivement ladite eau de réseau (15) distribuée par lesdites buses de rinçage (14) ;
    - ladite zone de pré-rinçage (12) étant équipée de buses de pré-rinçage (16) pour distribuer une solution de pré-rinçage (17) recueillie dans ledit réservoir de pré-rinçage (18) et
    - un réservoir de drainage (21) pour recueillir exclusivement ladite solution de pré-rinçage (17) distribuée par lesdites buses de pré-rinçage (16),
    - ladite zone de drainage (11) étant équipée de buses de drainage (19) pour distribuer la solution de drainage (20) recueillie dans un réservoir de drainage (21) et un réservoir d'évacuation (31) pour recueillir exclusivement ladite solution de drainage (20) distribuée par lesdites buses de drainage (19) ;
    - ledit réservoir d'évacuation (31) étant le seul raccordé au réseau (32) pour évacuer la solution d'évacuation (30); des éléments de barrière (33, 34) étant disposés entre lesdites zones de séparation desdits réservoirs (18, 21, 31) ;
    - lesdites buses de drainage (19) étant configurées de manière à distribuer ladite solution de drainage (20) à un débit et une vitesse qui sont supérieurs par rapport à la solution de pré-rinçage (17) et à l'eau de réseau (15) distribuées par lesdites buses de pré-rinçage (16) et par lesdites buses de rinçage (14).
  2. Station de rinçage à plusieurs étages (10) selon la revendication 1, caractérisée en ce qu'elle comprend des moyens (22) pour chauffer l'eau de réseau (15), une pompe de pré-rinçage (23) connectée à un réservoir de pré-rinçage (18) pour distribuer ladite solution de pré-rinçage (17) auxdites buses de pré-rinçage (16) et une pompe de drainage (24) connectée à un réservoir de drainage (21) pour distribuer ladite solution de drainage (20) auxdites buses de drainage (19).
  3. Station de rinçage à plusieurs étages (10) selon l'une quelconque des revendications précédentes, caractérisée en ce qu'elle comprend d'autres moyens de chauffage agissant sur lesdites solutions contenues dans ledit réservoir de drainage (21) et/ou dans ledit réservoir de pré-rinçage (18).
  4. Station de rinçage à plusieurs étages (10) selon l'une quelconque des revendications précédentes, caractérisée en ce qu'elle comprend des capteurs pour mesurer les propriétés desdites solutions de drainage (21) et de pré-rinçage (17), connectés à une unité pour commander à la fois la distribution de ladite eau de réseau (15) et l'avance de ladite vaisselle dans ladite station (10).
  5. Station de rinçage à plusieurs étages (10) selon la revendication 4, caractérisée en ce que lesdits capteurs sont des capteurs de mesure de pH desdites solutions de drainage (21) et de pré-rinçage (17).
  6. Station de rinçage à plusieurs étages (10) selon la revendication 4, caractérisée en ce que lesdits capteurs sont des capteurs de mesure de la conductivité desdites solutions de drainage (21) et de pré-rinçage (17).
  7. Station de rinçage à plusieurs étages (10) selon la revendication 4, caractérisée en ce que lesdits capteurs sont capteurs de mesure de la turbidité desdites solutions de drainage (21) et de pré-rinçage (17).
  8. Station de rinçage à plusieurs étages (10) selon l'une quelconque des revendications précédentes, caractérisée en ce qu'elle comprend des capteurs de niveau desdites solutions contenues dans ledit réservoir de drainage (21) et/ou dans ledit réservoir de pré-rinçage (18) connectés à une unité pour commander la distribution de ladite eau de réseau (15).
  9. Lave-vaisselle à tunnel (100) comprenant en succession, d'amont en aval suivant le déplacement de la vaisselle une station de prélavage (101), au moins une station de lavage (102, 103) et une station de rinçage à plusieurs étages (10) selon l'une quelconque des revendications précédentes.
EP12176400.5A 2011-07-15 2012-07-13 Station de rinçage à plusieurs étages améliorée pour lave-vaisselle à tunnel, et lave-vaisselle à tunnel équipé d'une telle station Active EP2545839B2 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
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
EP14198104.3A EP2881028B1 (fr) 2011-07-15 2012-07-13 Module de rinçage multi-étages amélioré pour lave-vaisselle tunnel et lave-vaisselle tunnel équipé d'un tel module

Applications Claiming Priority (1)

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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)

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EP14198104.3A Division-Into EP2881028B1 (fr) 2011-07-15 2012-07-13 Module de rinçage multi-étages amélioré pour lave-vaisselle tunnel et lave-vaisselle tunnel équipé d'un tel module
EP14198104.3A Division EP2881028B1 (fr) 2011-07-15 2012-07-13 Module de rinçage multi-étages amélioré pour lave-vaisselle tunnel et lave-vaisselle tunnel équipé d'un tel module

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

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EP12176400.5A Active EP2545839B2 (fr) 2011-07-15 2012-07-13 Station de rinçage à plusieurs étages améliorée pour lave-vaisselle à tunnel, et lave-vaisselle à tunnel équipé d'une telle station

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EP14198104.3A Revoked EP2881028B1 (fr) 2011-07-15 2012-07-13 Module de rinçage multi-étages amélioré pour lave-vaisselle tunnel et lave-vaisselle tunnel équipé d'un tel module

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EP (2) EP2881028B1 (fr)
ES (2) ES2536440T5 (fr)
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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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EP1042983A1 (fr) † 1999-03-31 2000-10-11 Chemische Fabrik Dr. Weigert Machine à laver vaisselle du type à tunnel
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Publication number Publication date
ITMI20111324A1 (it) 2013-01-16
EP2881028A1 (fr) 2015-06-10
EP2545839A1 (fr) 2013-01-16
ES2536440T3 (es) 2015-05-25
EP2545839B1 (fr) 2015-02-11
ES2594346T3 (es) 2016-12-19
ES2536440T5 (es) 2022-08-03
EP2881028B1 (fr) 2016-06-29
PL2545839T3 (pl) 2015-10-30

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