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
  • A47L15/24—Washing or rinsing machines for crockery or tableware with movement of the crockery baskets by conveyors
• • 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
  • A47L15/0018—Controlling processes, i.e. processes to control the operation of the machine characterised by the purpose or target of the control
  • A47L15/0021—Regulation of operational steps within the washing processes, e.g. optimisation or improvement of operational steps depending from the detergent nature or from the condition of the crockery
  • A47L15/0026—Rinsing phases
• • 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
  • A47L15/0002—Washing processes, i.e. machine working principles characterised by phases or operational steps
  • A47L15/0005—Rinsing phases, e.g. pre-rinsing, intermediate rinsing, final rinsing
• • 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
  • A47L15/0018—Controlling processes, i.e. processes to control the operation of the machine characterised by the purpose or target of the control
  • A47L15/0047—Energy or water consumption, e.g. by saving energy or water
• • 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
  • A47L15/4282—Arrangements to change or modify spray pattern or direction
• • 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
  • A47L15/42—Details
  • A47L15/4214—Water supply, recirculation or discharge arrangements; Devices 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
  • A47L2401/00—Automatic detection in controlling methods of washing or rinsing machines for crockery or tableware, e.g. information provided by sensors entered into controlling devices
  • A47L2401/04—Crockery or tableware details, e.g. material, quantity, condition
• • 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
  • A47L2401/00—Automatic detection in controlling methods of washing or rinsing machines for crockery or tableware, e.g. information provided by sensors entered into controlling devices
  • A47L2401/30—Variation of electrical, magnetical or optical quantities
• • 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
  • A47L2501/00—Output in controlling method of washing or rinsing machines for crockery or tableware, i.e. quantities or components controlled, or actions performed by the controlling device executing the controlling method
  • A47L2501/01—Water supply, e.g. opening or closure of the water inlet valve
• • 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
  • A47L2501/00—Output in controlling method of washing or rinsing machines for crockery or tableware, i.e. quantities or components controlled, or actions performed by the controlling device executing the controlling method
  • A47L2501/20—Spray nozzles or spray arms

Definitions

• the invention relates to a cleaning device and a method for cleaning.
• this cleaning device can be a continuous-dish dishwasher, especially for commercial use, such as in institutions for public catering such as in particular canteens, canteens in schools, authorities, hospitals or care facilities.
• the cleaning device and the method can be used in particular for cleaning of items to be cleaned in the form of items to be washed, which is used directly or indirectly for the preparation, storage or presentation of food and drinks. In particular, these may be dishes and / or trays.
• Other fields of application of the present invention are conceivable in principle.
• fresh water which may optionally be heated and / or mixed with a rinse aid, in particular as a so-called rinse solution, is applied to the items to be cleaned via at least one nozzle.
• a rinse aid in particular as a so-called rinse solution
• the fresh water rinse usually last residues of debris and residues of the washing liquid are rinsed from the items to be cleaned in order to achieve a perfect wash result.
• several nozzles are used in the fresh water rinsing zone in order to apply the rinse solution to the items to be cleaned. These nozzles are usually introduced into at least one tube which is arranged transversely, for example orthogonally, to the transport direction in the fresh water rinsing zone.
• a certain number of nozzles is required to produce a desired spray pattern.
• This spray pattern should be sufficient to moisten the cleaning material as evenly as possible over the entire passage width. If too few nozzles are used, for example, there are gaps in the film of the cleaning fluid on the items to be cleaned.
• a nozzle for forming a good spray pattern generally requires a minimum amount of final rinse fluid per unit time. Falling below this amount usually leads to a poor spray pattern with a consequent non-uniform wetting of the cleaning product.
• Continuous dishwashing machines are described, for example, in DE 10 2004 046 758 A1, DE 10 2007 053 381 B3, DE 10 2009 035 668 A1 or in the subsequently published German patent application with the number DE 10 2011 077 660.
• Many continuous dishwashers have two rinsing tubes in the rinsing zone, one of these rinsing tubes being arranged above and one below the conveying device.
• these rinse tubes each have six evenly distributed nozzles, so that the cleaning material is rinsed from above and from below.
• the Abauer Sign is over the entire passage width, so the maximum equippable width of the transport device perpendicular to the transport direction, usually uniform.
• conventional continuous dishwashers may have a width of 500 mm, 750 mm, 1000 mm or even 1200 mm.
• the rinsing pipes of the fresh water rinsing zone also referred to as nozzle pipes
• the rinsing pipes of the fresh water rinsing zone can be made longer or shorter, and the number of nozzles in these nozzle pipes can be selected accordingly.
• the number of nozzles, the size of the nozzles (for example their opening cross-section) and / or a pressure in the fresh water rinsing system can greatly influence the throughput of rinse aid fluid and thus the consumption of, for example, fresh water.
• the total fresh water consumption significantly affects a resource consumption of the continuous dishwasher.
• Fresh water usually has to be heated, for example, to an operating temperature between 80 ° C and 100 ° C, for example 85 ° C-90 ° C.
• rinse aid and / or cleaning agent generally have to be added to the rinse aid fluid in accordance with the incoming fresh water quantity.
• devices are known from the prior art, with the aid of which it can be recognized whether or not items to be cleaned are present on the transport device.
• individual cleaning zones of the dishwasher can then be switched on or off in accordance with the transport progress of the item to be cleaned.
• the operation of the fresh water rinsing zone can also be influenced in this way. In this way, fresh water can be saved.
• a dishwashing machine which comprises a conveyor belt for conveying dishes through a washing zone and a post-rinse zone.
• a photocell control dishes are detected and controlled switching on and off Nachêtement.
• a dishwashing machine with rinsing water regulation in which dishes are guided past a washing and rinsing device by means of a conveyor belt.
• a pivotable grid is provided in a range of movement of the dishes for switching on and off of rinse water.
• the moving grid from the harness causes an immediate activation of the rinse water in an upward movement and causes a shutdown of the rinse water in a decrease.
• DE 1 963 534 U discloses a rinsing device for dishwashers with continuous or incremental dishwashing. This has a pendulum-mounted button. When passing through a dish, a circuit is closed to a solenoid valve and a water flow is released as long as continuous harness holds the button in an inclined position.
• a fresh water consumption should be further reduced, and it should be further reduced for a final rinse used heating energy and a consumption of rinse aid and / or detergent additives.
• the proposed method can be carried out using a cleaning device according to the invention.
• the cleaning device can also be set up to carry out a method according to the invention. Accordingly, for possible embodiments of the method, reference may be made to the description of the cleaning device and vice versa. However, other embodiments are possible in principle.
• a cleaning device for cleaning items to be cleaned is proposed.
• a cleaning device is generally understood to mean a device in which the cleaning material is cleaned by means of at least one cleaning fluid in order to at least partially rid it of adhering dirt or other contaminants.
• the cleaning device can also exert a germicidal effect or even a disinfecting effect on the items to be cleaned.
• a method for cleaning of items to be cleaned hereinafter also referred to as a cleaning method, an admission of the cleaning with at least one cleaning fluid understood, for the purpose of at least partial removal of adhering dirt from the cleaning material.
• the cleaning method can exert a germicidal effect or even a disinfecting effect on the items to be cleaned.
• Under a cleaning material can be understood in general any goods that can be subjected to a cleaning or cleaning process.
• the cleaning device can in particular be designed as a continuous dishwasher.
• a continuous dishwasher is a dishwasher to understand, ie a machine for cleaning dishes in the form of dishes, which is adapted to transport the items to be washed through a cleaning chamber.
• this can be a belt transport dishwasher and / or a basket transport dishwasher, ie a dishwasher in which the dishes are transported by a conveyor belt through the cleaning device, such as a conveyor belt, on which the dishes are placed directly and / or on which one or more baskets are placed with the dishes to be cleaned.
• the continuous dishwasher may be designed in particular for commercial use, for example in one or more of the above-mentioned facilities for public catering.
• the cleaning device comprises at least one cleaning chamber and at least one transport device, which is set up to transport the items to be cleaned in a transport direction through the cleaning chamber.
• Under a cleaning chamber is generally a chamber to understand in which the cleaning process described above cleaning of the cleaning is carried out completely or partially.
• the application of the cleaning fluid or one of a plurality of cleaning fluids can take place in a cleaning chamber.
• the chamber is preferably completely or partially enclosed by a housing.
• the cleaning chamber can be designed tunnel-like or comprise a part of a tunnel, for example with an inlet and an outlet, wherein the material to be cleaned is introduced at the inlet into the cleaning chamber and exits the cleaning chamber at the outlet.
• a transport device is generally understood in the context of the present invention, any device which is adapted to transport the cleaning material in the transport direction through the cleaning chamber.
• this transport device may be selected from a belt transport device having at least one conveyor belt and a roller transport device with at least one transport roller or a plurality of transport rollers, for example one or more driven transport rollers, by means of which, for example, the cleaning material directly and / or one or more baskets receiving the cleaning material the transport direction can be transported through the cleaning chamber.
• the cleaning device furthermore has at least one rinse aid nozzle system for charging the cleaning product with at least one final rinse aid.
• the rinse aid is thus an embodiment of a cleaning fluid.
• further cleaning fluids can be used in the cleaning device in order to wash the object to be cleaned, for example, before it is rinsed with the rinse aid and to rinse off coarse dirt residues.
• the rinse aid finally serves to rinse off adhering residues of preceding cleaning fluids with which the items of cleaning material were previously applied, so that preferably no residues of cleaning fluids remain on the items to be cleaned.
• the rinse aid is thus preferably the last cleaning fluid with which the items to be cleaned are rinsed off, preferably residue-free, in a chain of application of a plurality of cleaning fluids.
• the rinse aid can be, for example, an aqueous rinse aid which is preferably admixed with one or more rinse aids.
• Under a rinse aid is generally to understand a liquid which the Drying of the cleaning material improved.
• the rinse aid may, for example, comprise one or more surfactants, for example nonionic surfactants, which reduce the surface tension of the final rinse fluid, for example the surface tension of the water, so that, for example, the rinse aid fluid may drain without dripping.
• the rinse aid may comprise, for example, further substances, for example one or more organic acids such as, for example, citric acid and / or lactic acid, for example for complex formation with hardness-forming ions such as calcium ions or magnesium ions. These one or more acids may also serve to neutralize alkaline components. Furthermore, one or more solvents, preservatives, solubilizers and optionally one or more fragrances may be present in the rinse aid.
• the rinse aid fluid can thus be in particular an aqueous solution of a rinse aid, wherein the rinse aid may comprise one or more of the abovementioned constituents, in particular one or more nonionic surfactants and / or one or more organic acids.
• the rinse aid fluid may simply be fresh water or comprise fresh water.
• the rinse aid fluid may in particular be tempered and may, for example, have a temperature of 80 ° C.-100 ° C., preferably of 85 ° C.-95 ° C. This tempering, for example, promote the above-described residue-free drying effect, preferably without drop formation on the cleaning material.
• a nozzle is generally understood to mean a device on which, for example by means of a conduit system and / or a pipe system, a fluid can be provided so that it can escape through one or more openings of the nozzle.
• a nozzle may itself comprise one or more openings.
• the fluid provided can escape through this one or more openings under a pressure, so that an injection process and / or spraying takes place, in which the fluid, for example the cleaning fluid and in this case in particular the rinse aid, is sprayed onto the object to be cleaned and / or sprayed on.
• a rinse aid nozzle system is thus to be understood as meaning a nozzle system in the sense of the above definition, through which rinse aid fluid can be dropped onto the items to be cleaned, sprayed on or sprayed on.
• the rinse aid nozzle system has at least two rinse aid nozzle units arranged at different positions transversely to the transport direction.
• the transport direction thus defines a spatial direction at least locally at the location of the rinse aid nozzle system. Transverse to this spatial direction of the transport direction defines the rinse nozzle system at least one more spatial direction.
• the term "transverse” here means a spatial direction which runs non-parallel to the transport direction, and may preferably be a spatial direction perpendicular to the transport direction at the location of the rinse aid nozzle system, ie a spatial direction which is less than 90.degree
• deviations from an exact Ortogon Rund may occur, preferably deviations by not more than 45 °, for example by not more than 30 °, for example by not more than 20 ° and more preferably by not more than 10 ° or even not more
• the nozzle unit is understood as meaning a unit of the nozzle system which comprises at least one nozzle, that is to say an element with at least one opening through which the cleaning fluid, here in particular the nozzle Rinse fluid, can escape, so drip, spray or spray ka
• the rinse aid nozzle system thus has two, three, four, five, six or more such rinse aid nozzle units, which are arranged transversely to the transport direction, so that they are arranged at the at least two different positions transversely to the transport direction.
• the transport device can have a transport width, ie a maximum width which can be equipped with the items to be cleaned.
• This transport width can also be referred to as transit width.
• the rinse aid nozzle system is configured such that the rinse aid nozzle units cover the entire transport width of the transport device.
• the different position transversely to the transport direction and / or the number of clear rinsing nozzle units are selected so that any cleaning material positioned on the transport device is detected in any case by the rinse aid fluid leaving the rinse aid nozzle units, for example regardless of whether the cleaning is now located in the middle or at the edge of the transport device, for example in the middle or at the edge of the conveyor belt.
• the rinse aid nozzle units may, for example, form a chain of nozzle units which are arranged transversely to the transport direction and which can preferably spray or spray the entire width of the transport apparatus, for example the entire width of the conveyor belt.
• the rinse-aid nozzle units can be switched independently of one another in order to apply the rinse aid with the rinse aid fluid independently of one another at the different positions.
• switch is generally within the scope of the present Invention in connection with a nozzle unit to understand a control of the discharge of a fluid from the nozzle unit.
• a nozzle unit is thus to be understood as a unit of one or more nozzles, which are jointly controllable in this way.
• the switching operation may be a digital switching operation in which a state in which fluid exits the nozzle unit (turned-on state) and a turned-off state in which no fluid leaks from the nozzle unit can be switched.
• the switching process may also include one or more intermediate states and / or intermediate switching states or a stepless switching process, wherein between the above-described states of the switched-on state and the switched-off state one or more intermediate states may be provided, in which fluid emerges from the nozzle unit with reduced volume flow and / or mass flow compared with the switched-on state.
• one or more switching elements can be provided to carry out the switching operation.
• one or more switching elements can be provided for the circuit of the rinse aid nozzle units, in particular selected from the group consisting of: a valve; a slider; a cock.
• the at least one switching element may in particular be designed to interrupt or release at least one supply of rinse aid fluid to the rinse aid nozzle units.
• the switchability can also take place, for example, by a plurality of separate pump systems, so that, for example, the switching operation can include pressurization of the respective rinsing nozzle unit or non-pressurization.
• Other technical implementations are also conceivable and generally known to the person skilled in the art.
• independently switchable is to be understood as meaning that the at least two nozzle units can be switched in such a way that one nozzle unit can be switched independently of the circuit of another nozzle unit.
• Nozzle unit can be selected, at least one switching state, irrespective of the switching state in which one or more other rinsing nozzle units are located this manner may be independently determined by the at least two NEN different positions transverse to the transport direction, the cleaning material to be acted upon by the cleaning fluid.
• an independent application of rinse aid fluid is to be understood that at least a first of the different positions, a leakage or non-excretion of rinse aid from a rinsing nozzle unit arranged there is switchable to apply to the cleaning, regardless of whether at least one second position of the different positions also a discharge of rinse fluid from the nozzle unit located there takes place.
• the cleaning device may in particular be selected from the group consisting of a belt conveyor dishwasher and a rack conveyor dishwasher.
• the transport device may in particular comprise at least one conveyor belt and / or one or more transport rollers.
• the transport device can in particular be juxtaposed transversely to the transport direction with several pieces of the cleaning material.
• the transport device can have a transport width of at least 300 mm transversely to the transport direction, for example, perpendicular to the transport direction.
• transport widths of 500 mm or more, 750 mm or more, 1000 mm or more or even 1200 mm or more may be provided.
• the transport width can be predetermined, for example, by a corresponding width of a conveyor belt and / or a roller system of the transport device, which can be equipped with a maximum of the items to be cleaned.
• the rinse aid nozzle system may in particular have at least three rinse aid nozzle units arranged side by side transversely to the transport direction. In particular, at least four, particularly preferably at least six rinse-aid nozzle units can be provided. Each rinsing nozzle unit may in turn have one or more nozzles, for example via one or more outlet openings for the final rinse fluid.
• the rinse-aid nozzle units can be arranged, for example, in at least one nozzle arm arranged transversely to the transport direction.
• a nozzle arm is meant, for example, a rigidly mounted or pivotable arm, which provides a mechanical support for the rinse nozzle units and preferably also a supply of rinse aid fluid.
• the rinse aid nozzle units can also be arranged, for example, in a cover part and / or bottom part of the cleaning chamber and / or in another way in the cleaning device.
• the rinse-aid nozzle units can have, for example, at least one first group of rinse aid nozzle units above the items to be cleaned and at least one second group of rinse aid nozzle units below the items to be cleaned, for example one Nozzle arm, which is arranged above the transport device and the cleaning material acted upon from above with the rinse aid fluid and at least one nozzle arm, which is arranged below the cleaning and applied to the cleaning material from below with the rinse aid.
• each rinse-aid nozzle unit is preceded by an associated valve, with the associated valve being switchable in order to switch the application of the cleaning material via the rinse-aid nozzle unit.
• this circuit can be, for example, a digital circuit between a switched-on state and a switched-off state, or else a circuit which allows one or more intermediate positions, step-wise or else infinitely variable.
• the at least one switching element may be selected from the group consisting of: a valve, in particular a solenoid valve and / or a solenoid valve and / or a valve with at least one piezoelectric actuator; a slide, in particular a mechanically actuated slide; a cock.
• the at least one switching element may be electrically switchable so that it can be switched, for example, by a control of the cleaning device.
• mechanically, pneumatically or hydraulically operable switching elements for example for independent switchability of the at least two rinse aid nozzle units.
• the rinse-aid nozzle units can in particular be acted upon by at least one final-rinse fluid supply with rinse-aid fluid.
• the rinsing-nozzle units can be fed, for example via a common rinse fluid supply, in particular via a common fresh water supply.
• the rinse aid nozzle units may also have independent rinse fluid feeds. If a common rinse fluid supply is provided, the rinse aid nozzle units can be connected, for example, to the common rinse fluid feed via rinse lines, wherein in each rinse line, for example, at least one associated switching element can be arranged in each case.
• the common rinse fluid supply may comprise a common rinse fluid tank and / or a common rinse fluid conditioner.
• the common rinse fluid supply may also comprise a common fresh water supply, for example a common fresh water tap and / or a common, for example on-site, fresh water connection via which all rinse-aid nozzle units can be supplied with fresh water.
• the cleaning device may include a central connection for fresh water, which is connectable to a common on-site fresh water supply, the common connection then branches and leads, for example via rinse lines directly or indirectly to the individual rinse nozzle units.
• one or more switching elements may be interposed and / or one or more processing devices. These elements can be arranged, for example, in the individual rinse lines and / or before a diversion of the individual rinse lines.
• the final-rinse fluid supply to the rinse-aid nozzle units can in particular be equipped with at least one additional control element.
• This at least one optional control element can in particular be designed to keep a hydraulic pressure in the final-rinse system constant. With this regulating device it can be achieved that a constant pressure is always applied to the rinse aid nozzle units, even if one or several rinse aid nozzle units are switched off according to the invention.
• Constant is preferably to be understood as an absolute constancy, but in principle deviations and / or fluctuations can be tolerated, which are preferably not more than 50% of an average pressure, in particular not more than 20% of the average pressure and especially preferably not more than 10%.
• the optional at least one control element offers the advantage that pressure fluctuations occurring when switching the rinse aid nozzle units can be at least largely avoided.
• the case may arise that, under unfavorable conditions, the pressure in the system increases and a larger quantity of rinse fluid flows through the remaining activated rinse nozzle units.
• the optional at least one control element can thus further support the effect of the invention, namely the saving of rinse aid fluid.
• the at least one optional control element may, for example, be arranged in one or more sections of a rinse aid supply to the rinse aid nozzle units.
• each rinsing nozzle unit can be assigned a regulating member, or a common regulating member can be provided for a group of rinsing nozzle units.
• the at least one optional control element may in turn comprise, for example, at least one valve, coupled for example with at least one sensor, in particular at least one flow sensor and / or at least one pressure sensor.
• the at least one control element may comprise at least one needle valve, for example at least one electric motor operated needle valve.
• a valve position can for example be adjusted or regulated by means of a signal of the sensor such that a constant pressure prevails in the rinse fluid supply.
• at least one controller may be provided for this purpose.
• the cleaning device can furthermore have at least one processing device.
• a treatment device can generally be understood to mean a device which is set up in order to set at least one property of the rinse aid fluid before this rinse aid fluid is supplied to the rinse aid nozzle system.
• this at least one property can be selected from the group consisting of a temperature of the final rinse fluid, a purity of the final rinse fluid and a concentration of at least one component of the final rinse fluid, for example a rinse aid.
• the treatment device may, for example, be selected from the group consisting of: a temperature control device for setting a temperature of the rinse aid fluid, in particular a heating device, and particularly preferably a flow heater and / or a boiler; a treatment plant for adjusting a purity of the rinse aid, in particular a filter and / or an osmosis plant (which also includes the possibility of a reverse osmosis plant); a metering device for adjusting at least one concentration of a component of the rinse aid, in particular a rinse aid.
• a temperature control device for setting a temperature of the rinse aid fluid
• a heating device and particularly preferably a flow heater and / or a boiler
• a treatment plant for adjusting a purity of the rinse aid, in particular a filter and / or an osmosis plant (which also includes the possibility of a reverse osmosis plant)
• a metering device for adjusting at least one concentration of a component of the rinse aid, in particular a rinse aid.
• the cleaning device may further comprise at least one controller.
• a controller is generally understood to mean an electronic device which can control and / or regulate one or more operating sequences of the cleaning device.
• the controller may be program-technically configured to provide at least one cleaning program and / or a plurality of cleaning programs in to perform the cleaning device.
• the controller can control, for example, one or more elements of the cleaning device.
• the controller may be configured to switch the rinse nozzle units.
• one or more electronic connections between the controller and the rinse nozzle units and / or one or more switching elements, which ensure the independent switchability of the rinse nozzle units (for example, valves and / or pumps) may be provided.
• the controller may, for example, comprise at least one data processing device, for example at least one computer or microcontroller.
• the controller may further comprise at least one interface, for example an electronic interface and / or a man-machine interface such as an input / output device such as a display and / or a keyboard.
• the controller can be constructed, for example, centrally or decentrally.
• a plurality of decentralized controls may be provided, for example one controller per switching element and / or one controller per rinse nozzle unit and / or one controller per item to be cleaned.
• Other embodiments are conceivable.
• the controller may be arranged to group together a plurality of rinse aid nozzle units as needed, wherein the rinse aid nozzle units are each connected in common to one group.
• Other embodiments are possible.
• the controller recognizes whether there is a need for such an application in the area which is detected by the respective group of rinse aid nozzle units and supplied with final rinse fluid. So whether, for example, in this area cleaning is present or not.
• the cleaning device may further comprise at least one starssgut sensor.
• a device which can detect a presence of items to be cleaned and / or a position of the items to be cleaned.
• the detection can take place, for example, one or more of the following measurement principles: electrical, electromechanical, mechanical, inductive, by means of ultrasound, by means of infrared rays, optically, by means of at least one image acquisition, for example a camera system.
• the at least one winsgut- sensor have at least one detection area, which may be, for example, one-dimensional or two-dimensional and which preferably covers the entire width of the transport device.
• a presence of the cleaning product in this detection area can be detected one-dimensionally or two-dimensionally or optionally also three-dimensionally.
• the transport device can be divided into sectors in a direction perpendicular to the transport direction, it being possible to detect, for example, by means of the at least one cleaning product sensor, whether a respective sector is equipped with cleaning material or not.
• the sectors may, for example, correspond to the areas of the rinse aid nozzle units described above, so that it is possible, for example by means of the recognition of the cleaning product, to determine whether or not the respective at least one rinse nozzle unit associated with a sector is to be switched on, since items to be cleaned in this container Sector is or is not.
• the cleaning material sensor can thus be set up to detect a presence of the cleaning product and / or a position of the cleaning product, wherein the cleaning device can be set up to switch on the rinse aid nozzle units in accordance with a requirement detected by means of the cleaning material sensor off.
• a requirement is understood to be the presence of items to be cleaned, for example in a sector of the transport device associated with the rinse nozzle unit, wherein, for example, a need is detected and a switch is made and, for example, there is no need for an absence of items to be cleaned is determined and, for example, a shutdown of the respective rinse nozzle unit takes place.
• the rinse aid nozzle system may have a plurality of impingement regions arranged side by side transversely to the transport direction.
• These loading areas may be, for example, the sectors of the transport device described above.
• at least one rinsing-nozzle unit can be assigned to each loading area, wherein the items to be cleaned can be acted upon by the rinsing-off area from the associated rinsing nozzle unit within the loading area.
• the cleaning device can then be set up, in particular, to switch on the associated rinsing-nozzle unit of an application area if it is detected by means of the cleaning-product sensor that items to be cleaned are located within the loading area.
• the cleaning device can be set up to switch off the respective rinsing-nozzle unit when it is detected by means of the cleaning-product sensor that there is no item to be cleaned within the application area.
• the cleansgut- sensor can, as stated above, based on different measurement principles and / or detection principles.
• the cleaning material sensor may particularly preferably be selected from the group consisting of: a mechanical or electromechanical probe, an optical sensor, a light barrier, an image acquisition sensor, in particular a camera system. Other comesgut- sensors are thus basically used.
• the at least one winsgut- sensor may be selected from the group consisting of: an electrical entersgut- sensor, for example, a capacitive and / or inductive Chinesesgut sensor; an electromechanical cleaning material sensor, for example a cleaning material sensor in the form of an electromechanical pushbutton and / or switch and / or in the form of an electromechanical lever; a mechanical entersgut- sensor, in particular a mechanical switch and / or a mechanical button; an inductive cleaning material sensor; an ultrasonic cleaning material sensor; an optical cleaning material sensor, in particular a cleaning material sensor based on infrared rays and / or based on ultraviolet rays and / or a visible light based on a visible light, for example at least one light barrier and / or at least one optical reflection sensor; an image capture sensor, such as a camera system.
• an electrical entersgut- sensor for example, a capacitive and / or inductive Chinesesgut sensor
• an electromechanical cleaning material sensor for example a cleaning material sensor in the form of an
• the cleaning material sensor can have, for example, a detection area, with punctiform, one-dimensional, two-dimensional or even three-dimensional detection areas being conceivable.
• a two-dimensional detection area can be realized for example by means of a camera system.
• a punctiform detection area can be realized, for example, by means of an electromechanical probe.
• the cleaning device may in particular have a plurality of starsgut- sensors.
• a plurality of loading areas may be provided, wherein each loading area may be assigned at least one cleaning material sensor.
• one rinsing nozzle unit or one group of rinsing nozzle units can each be assigned a cleaning material sensor.
• Other configurations are possible in principle.
• the cleaning device may in particular comprise a plurality of cleaning zones.
• the transport device can be set up, for example, to move the items to be cleaned in succession through the cleaning zones.
• the cleaning material can be acted upon in each cleaning zone with a cleaning fluid.
• the cleaning fluids of the different cleaning zones may differ from each other.
• the purification zones may comprise at least one rinse zone, the Rinsing nozzle system can be arranged in the rinse zone.
• the rinse zone may comprise, for example, a fresh water rinsing zone.
• the rinse zone may, alternatively or additionally, also comprise at least one pump rinse zone.
• the cleaning device may in particular comprise at least one of the rinsing zone, in particular the fresh water rinsing zone upstream in the transport direction cleaning zone, wherein the upstream cleaning zone may for example be selected from the group consisting of: a Vorab syndromem zone, a washing zone, a pump rinsing zone.
• the cleaning device may in particular have at least one tank for loading a nozzle system of the upstream cleaning zone with cleaning fluid.
• the cleaning device can in particular be designed to supply rinse aid fluid, in particular fresh water, from the rinse aid nozzle units to the at least one tank after the cleaning product has been treated with the rinse aid fluid, in particular the fresh water.
• a plurality of tanks may be provided, wherein at least one of the tanks may have an overflow and / or another liquid transfer device to a tank upstream in the transport direction.
• the upstream tank can in particular feed a nozzle system upstream in the transport direction.
• the cleaning device may include a tank system having a plurality of tanks, wherein one or more overflows and / or other liquid transfer devices may be provided between the tanks. In this way, cleaning zones of a lower quality, for example, upstream of cleaning zones in the transport direction than in downstream zones, can be acted upon.
• the cleaning zone with the cleaning fluid of the highest quality can then be in particular the final rinse zone.
• the rinsing zones can be downstream of one or more further zones in the transport direction.
• the final rinse zone in the transport direction for example, be downstream of at least one drying zone.
• the items to be cleaned can, for example, be dried independently and / or can be acted upon, for example, by an air flow to assist the drying, for example by means of a blower and particularly preferably by means of a hot air blower.
• a method for cleaning items to be cleaned is proposed.
• the item to be cleaned is transported by at least one transport device through at least one cleaning chamber of a cleaning device.
• the cleaning material is applied by means of at least one rinse nozzle system with at least one rinse aid.
• the rinse aid Nozzle system has at least two, arranged at different positions transversely to the transport direction, rinse nozzle units.
• the rinse-aid nozzle units are switched independently of one another in order to apply the rinse aid fluid independently of one another at the different positions.
• the cleaning device may in particular be a cleaning device according to one or more of the embodiments described above or according to one or more of the embodiments described below.
• At least one cleaning good sensor can be used to detect a presence of the cleaning product and / or a position of the cleaning product.
• the rinse aid nozzle units can then be switched on or off.
• the rinse aid nozzle system may, in particular, have a plurality of application areas arranged side by side transversely to the transport direction. At least one rinsing nozzle unit can be assigned to each loading area, wherein cleaning material within the loading area can be acted upon by rinsing fluid from the associated rinsing nozzle unit.
• the method can be carried out in such a way that the assigned rinse nozzle unit is switched on if it is detected by means of the item to be cleaned that the item to be cleaned is located within the area of the beacon.
• the respective rinse-aid unit can furthermore be switched off if it is detected by means of the cleaning-product sensor that no items to be cleaned are located within the loading area.
• the proposed cleaning device and the proposed cleaning method have a number of advantages over known cleaning devices and cleaning methods.
• a rinsing system for example a fresh water rinsing
• Such systems have, as stated above, significant disadvantages if there is only a partial occupancy of the transport device, for example the conveyor belt, across the passage width of the dishwasher. In this case, rinse-out fluid is unnecessarily sprayed on empty areas of the transport device, for example on empty belt areas, and in particular fresh water is thereby consumed.
• the proposed cleaning device can lead to a minimum fresh water consumption in the system of a fresh water rinse of a dishwasher, for example, to further reduce the amount of fresh water required and the heating energy optionally used for it as well as the consumption of optional rinse aid and / or detergent additives.
• a rinsing system for example a fresh water rinsing system, can be realized, which is designed such that each rinsing nozzle unit can be switched independently of other rinsing nozzle units.
• each rinse nozzle unit may be associated with a device to turn on or off the flow rate at the respective nozzle unit. This can be done, for example, in conjunction with a system for detecting points of the transport device, for example, tape areas which are occupied by items to be cleaned or are empty.
• rinse aid can only be sprayed where it is needed.
• one or more nozzle units can be switched off in order to reduce the consumption of rinse aid, in particular the fresh water consumption.
• individual nozzles or nozzle units can also be combined into one or more groups, in which case nozzles or nozzle units of a group can be switched on and off together.
• the entire passage width of the transport device can be subdivided into two, three, four or more areas whose occupancy can be recorded and evaluated and in which the associated nozzle groups can be switched. In this case, for example, at partial load, the fresh water consumption can be reduced to two-thirds or one-third of the full amount in a division into three areas.
• the cleaning device can in particular have a system for detecting items to be cleaned, in particular items to be washed.
• the system can, as stated above, have one or more makesgut- sensors.
• the system for recognizing items to be cleaned can be designed, for example, such that it is capable of recognizing an occupancy of the transport device with items to be cleaned, for example a strip occupancy, in a plurality of loading areas distributed over the passage width and either directly or by means of the in the control device to turn on the corresponding nozzles in the occupied Beauftschungs Kunststoffe, for example, when reaching the final rinse zone, or turn off the rinse nozzle units in the unoccupied areas.
• the at least one cleaning material sensor preferably the plurality of items to be cleaned, for example for detecting occupied areas of tape
• these can be realized in the form of mechanical buttons.
• optical sensors for example optical sensors, for example in the form of retro-reflective sensors, imaging sensors such as camera systems or other types of sensors.
• a single item of cleaning material to scan the entire passage width, for example the entire bandwidth, for an occupancy with items to be cleaned, for example by using a camera, after which, for example, switch-on and / or switch-off operations on individual items Rinse-rinse nozzle units can be triggered.
• the cleaning material sensor system can also have, for example, a single cleaning material sensor for each individual nozzle unit.
• all versions are possible that lie between the extreme cases mentioned.
• the circuit of the individual nozzle units or groups of nozzle units can be realized in a simple manner.
• one or more switching elements can be provided by means of which individual nozzle units or groups of nozzle units can be switched on or off.
• one or more valves, taps or slides may be provided.
• a solenoid valve and / or by means of one or more valves based on piezo and / or a mechanically actuated slide a simple switching operation.
• Other switching elements for the flow of the rinse aid to the nozzle units are also conceivable.
• the method described and the proposed cleaning device can be used efficiently in various types of rinse nozzle systems.
• the method according to the invention can be used in fresh-water rinsing systems in which a common supply of rinsing fluid and / or fresh water is provided for all fresh-water rinsing nozzles.
• the supply can have a device for heating the rinse aid fluid, for example a boiler and / or a flow heater, or a general supply of fresh water, for example tap water, water from a treatment plant (for example an osmosis system or reverse osmosis system).
• a device for heating the rinse aid fluid for example a boiler and / or a flow heater
• a general supply of fresh water for example tap water, water from a treatment plant (for example an osmosis system or reverse osmosis system).
• a device for heating the rinse aid fluid for example a boiler and / or a flow heater
• a general supply of fresh water for example tap water, water from a treatment plant
• a treatment plant for example an osmosis system or reverse osmosis system
• Embodiment 1 Cleaning device for cleaning of items to be cleaned, in particular continuous dishwasher, comprising at least one cleaning chamber and at least one transport device, wherein the transport device is arranged to transport the items to be cleaned in a transport direction through the cleaning chamber, wherein the cleaning device at least one rinse nozzle system
• the clean rinsing nozzle system has at least two rinse aid nozzle units arranged at different positions transversely to the transport direction, the rinse aid nozzle units being switchable independently of each other to the different ones Positions to apply the cleaning material with the rinse aid fluid, in particular independently of each other in juxtaposed Beaufschlagungs Symposiumen.
• Embodiment 2 A cleaning device according to the preceding embodiment, wherein the cleaning device is selected from the group consisting of a belt transport dishwasher and a basket transport dishwasher.
• Embodiment 3 Cleaning device according to one of the preceding embodiments, wherein the transport device can be equipped with several pieces of the cleaning material next to one another transversely to the transport direction.
• Embodiment 4 Cleaning device according to one of the preceding embodiments, wherein the transport device has at least one conveyor belt and / or at least one transport roller.
• Embodiment 5 Cleaning device according to one of the preceding embodiments, wherein the transport device transversely to the transport direction has a transport width of at least 300 mm, preferably at least 500 mm, in particular at least 750 mm, more preferably at least 1000 mm and in particular at least 1200 mm.
• Embodiment 6 Cleaning device according to one of the preceding embodiments, wherein the rinse aid nozzle system has at least three rinse aid nozzle units arranged side by side transversely to the transport direction, preferably at least four and more preferably at least six rinse aid nozzle units.
• Embodiment 7 Cleaning device according to one of the preceding embodiments, wherein the rinse aid nozzle units are arranged in at least one, arranged transversely to the transport direction, nozzle arm.
• Embodiment 8 cleaning device according to one of the preceding embodiments, wherein the rinse nozzle system comprises at least a first group of rinse nozzle units and at least a second group of rinse nozzle units, wherein the first group is disposed above the cleaning material and is arranged to the cleaning material from the top to apply to the rinse fluid, the second group is disposed below the cleaning and is arranged to pressurize the cleaning material from below with the rinse fluid.
• Embodiment 9 Cleaning device according to one of the preceding embodiments, wherein each rinse nozzle unit is preceded by an associated switching element, wherein the associated switching element is switchable to switch the loading of the cleaning material on the rinse nozzle unit by means of the associated switching element.
• Embodiment 10 cleaning device according to the preceding embodiment, wherein the switching element is selected from the group consisting of: a valve, in particular a solenoid valve and / or a valve with at least one piezoelectric element actuator; a slide, in particular a mechanically actuated slide; a cock.
• the switching element is selected from the group consisting of: a valve, in particular a solenoid valve and / or a valve with at least one piezoelectric element actuator; a slide, in particular a mechanically actuated slide; a cock.
• Embodiment 11 cleaning device according to one of the two preceding embodiments, wherein the switching element is selected from the group consisting of: an open-close switching element with exactly one open state in which the rinse fluid is passed, and a closed state, in which the rinse fluid is blocked; a switching element having at least one opened state in which the rinse aid fluid is passed, and at least one closed state in which the rinse fluid is passed, as well as at least one intermediate state, wherein the rinse aid fluid is passed with a reduced volume flow and / or mass flow compared to the open state ,
• Embodiment 12 Cleaning device according to one of the preceding embodiments, wherein the rinse-aid nozzle units can each be acted upon by at least one final-rinse fluid supply with rinse-aid fluid.
• Embodiment 13 Cleaning device according to the preceding embodiment, wherein the rinse aid nozzle units are fed via a common rinse fluid supply, in particular a common fresh water supply.
• Embodiment 14 Cleaning device according to the preceding embodiment, wherein the rinse-aid nozzle units are connected to the common rinse fluid supply via rinse lines, wherein in each rinse line at least one associated switching element is arranged.
• Embodiment 15 Cleaning device according to one of the preceding embodiments, wherein the cleaning device has at least one treatment device which is set up to set at least one property of the rinse aid fluid before it is supplied to the rinse aid nozzle system.
• Embodiment 16 cleaning device according to the preceding embodiment, wherein the treatment device is selected from the group consisting of: a temperature control device for adjusting a temperature of the rinse aid, in particular a water heater and / or a boiler; a treatment plant for adjusting a purity of the final-rinse fluid, in particular a filter and / or an osmosis plant; a metering device for adjusting at least one concentration of a component of the rinse aid, in particular a rinse aid.
• the treatment device is selected from the group consisting of: a temperature control device for adjusting a temperature of the rinse aid, in particular a water heater and / or a boiler; a treatment plant for adjusting a purity of the final-rinse fluid, in particular a filter and / or an osmosis plant; a metering device for adjusting at least one concentration of a component of the rinse aid, in particular a rinse aid.
• Embodiment 17 cleaning device according to one of the preceding embodiments, wherein the cleaning device further comprises at least one controller, wherein the controller is arranged to switch the rinse nozzle units.
• Embodiment 18 Cleaning device according to the preceding embodiment, wherein the controller is set up to group together a plurality of rinse aid nozzle units as needed, wherein the rinse aid nozzle units are each connected in common to one group.
• Embodiment 19 Cleaning device according to one of the preceding embodiments, wherein the cleaning device has at least one cleaning material sensor, wherein the cleaning material sensor is set up to detect a presence and / or a position of the cleaning article, wherein the cleaning device is set up, to turn on or off according to a detected by the madesgut- sensor need the rinse nozzle units.
• Embodiment 20 Cleaning device according to the preceding embodiment, wherein the rinsing nozzle system has a plurality of adjacent to the transport direction juxtaposed Beauftschungs Schemee, each Beaufschlagungs Scheme is associated with at least one rinse nozzle unit, wherein cleaning material can be acted upon within the Beauftschungs Schemes with rinse fluid from the associated rinse nozzle unit is, wherein the cleaning device is adapted to turn on the associated rinsing nozzle unit when it is detected by the entersgut- sensor that cleaning material is within the loading area and wherein the cleaning device is further configured to turn off the respective rinse nozzle unit, if by means the starsgut- sensor is detected that no cleaning material is within the loading area.
• Embodiment 21 Cleaning device according to one of the two preceding embodiments, wherein the cleaning material sensor is selected from the group consisting of: an electrical cleaning material sensor, for example a capacitive and / or inductive madesgut- sensor; an electromechanical placessgut- sensor, for example a rotatesgut- sensor in the form of an electromechanical switch and / or switch and / or in the form of an electromechanical lever; a mechanical see entersgut- sensor, in particular a mechanical switch and / or a mechanical button; an inductive Chinesesgut- sensor; an ultrasonic cleaning material sensor; an optical cleaning material sensor, in particular a cleaning material sensor based on infrared rays and / or based on ultraviolet rays and / or a visible light sensor based on visible light, for example at least one light barrier and / or at least one optical reflection sensor; an image acquisition sensor, such as a camera system .
• an electrical cleaning material sensor for example a capacitive and / or inductive madesgut- sensor
• Embodiment 22 Cleaning device according to one of the three preceding embodiments, wherein the cleaning device has a plurality of cleaning material sensors.
• Embodiment 23 Cleaning device according to the preceding embodiment, wherein in each case a rinsing nozzle unit or a group of rinsing nozzle units is assigned a nowsgut- S ensor.
• Embodiment 24 cleaning device according to one of the preceding embodiments, wherein the cleaning device comprises a plurality of cleaning zones, wherein the transport device is arranged to move the items to be cleaned successively through the cleaning zones, wherein the cleaning material in each cleaning zone is acted upon by a cleaning fluid, wherein the cleaning zones comprise at least one rinse zone, wherein the rinse nozzle system is arranged in the rinse zone.
• Embodiment 25 cleaning device according to the preceding embodiment, wherein the cleaning zones comprise at least one cleaning zone upstream of the final rinse zone in the transport direction, the upstream cleaning zone being selected from the group consisting of: a pre-roll zone; a washing zone.
• Embodiment 26 cleaning device according to the preceding embodiment, wherein the cleaning device has at least one tank for acting on a nozzle system of the upstream cleaning zone with cleaning fluid, wherein the cleaning device is adapted to rinse, in particular fresh water, from the rinse nozzle units after loading the cleaning with the rinse aid to feed the tank.
• Embodiment 27 Cleaning device according to the preceding embodiment, wherein a plurality of tanks is provided, wherein at least one of the tanks has an overflow and / or another liquid transfer device to an upstream tank, wherein the upstream tank feeds a nozzle system upstream in the transport direction.
• Embodiment 28 Cleaning device according to one of the four preceding embodiments, wherein the final rinse zone is downstream of at least one drying zone in the transport direction.
• Embodiment 30 A method for cleaning of items to be cleaned, wherein the items to be cleaned are transported by at least one transport device through at least one cleaning chamber of a cleaning device, wherein the cleaning material is applied by at least one rinse aid system with at least one rinse aid, wherein the rinse aid nozzle system at least two at different Positions arranged flush with the transport direction rinse nozzle units, wherein the rinse nozzle units are switched independently of each other to act independently of each other at the different positions the items to be cleaned with rinse aid, in particular independently of each other in adjacently arranged loading areas.
• Embodiment 30 Method according to the preceding embodiment, wherein a cleaning device according to one of the preceding embodiments relating to a cleaning device is used.
• Embodiment 31 Method according to one of the two preceding embodiments, wherein at least one cleaning material sensor is used in order to detect a presence of the cleaning product and / or a position of the cleaning product, wherein according to a demand detected by means of the cleaning product sensor, the rinsing agent Nozzle units are switched on or off.
• Embodiment 32 Method according to the preceding embodiment, wherein the rinse aid nozzle system has a plurality of impingement areas arranged side by side transversely to the transport direction, wherein each impingement area is assigned at least one rinse aid unit, wherein items to be cleaned within the impingement area with rinse aid from the associated rinse aid Nozzle unit is acted upon, wherein the associated rinse nozzle unit is turned on, when detected by the starsgut- sensor that cleaning material is within the loading area and wherein the respective rinse nozzle unit is turned off when it is detected by the madesgut- sensor that no cleaning material is within the loading area.
• FIG. 1 shows a sectional view of an embodiment of a cleaning device according to the invention in a sectional plane parallel to a transport direction;
• Figure 2 a sectional view of the embodiment of Figure 1 in one
• FIG 3 shows an alternative to Figure 2 embodiment of a cleaning device in a sectional view in a sectional plane perpendicular to the transport direction.
• FIG. 1 shows an exemplary embodiment of a cleaning device 110 according to the invention for cleaning articles 112 to be cleaned.
• the item to be cleaned 112 which is shown symbolically in FIG. 1, is shown by way of example in the form of, for example, glasses 114 and / or plates 116. Alternatively or additionally, other forms of cleaning material 112 can be used or used.
• the cleaning material 112 is transported in the illustrated embodiment by means of a transport device 118 in a transport direction 120 through a cleaning chamber 122 of the cleaning device 110.
• the cleaning chamber 122 may, for example, be configured as a cleaning tunnel 124 and may, for example, have a housing.
• the cleaning device 110 may therefore be designed in this or in other embodiments generally in particular as a continuous dishwasher 126.
• the items to be cleaned 112, for example the dishes, are transported by means of the transport device 118 at an inlet opening 128 into the interior of the cleaning chamber 122.
• the inlet opening 128 can be closed, for example, by a separating curtain 130, which can be opened by the cleaning material 112.
• the cleaning material 112 passes through a plurality of cleaning zones 132, which will be explained in more detail below. These can in turn be separated from one another by separating curtains 130.
• the cleaning material 112 for example, again on a separating curtain 134, leaves the cleaning chamber 122 and enters, for example, a drying zone 136.
• the cleaning material 112 is dried, for example via a blower 138, before the cleaning material 112 is transported by the transport device 118 into an outlet 140, in which it can be removed from the cleaning device 110.
• the transport device 118 may be or include, for example, a belt transport device and / or a basket transport device.
• a belt transport device and / or a basket transport device For example, at least one conveyor belt and / or a roller transport system may be included.
• the cleaning material 112 can be applied, for example, directly to the transport device 120, as shown by way of example in the example of the plate 116 in FIG. 1, so that the continuous dishwashing machine 126 can be configured, for example, as a belt transporting dishwasher.
• the item to be cleaned 112 can also be applied to the transport device 118, for example by means of one or more transport baskets 142, as shown by way of example by way of example by means of glasses 114 in the exemplary embodiment illustrated.
• the cleaning device 110 can be designed, for example, as a basket transport dishwasher.
• an inlet 144 may be provided, on which the cleaning material 112 can be applied directly or indirectly, for example by means of the transport baskets 142, to the transport device 118.
• FIG. 1 shows the cleaning device 110 in a sectional view in a sectional plane parallel to the transport direction 120.
• these cleaning zones comprise a washing zone 146, which in turn may, for example, again have a prewashing zone 148 and a main washing zone 150.
• the prewash zone 148 may also be referred to as a pre-scrubber zone.
• wash zone 146 may include two tanks, a pre-wash zone tank 152, and a main wash zone tank 154.
• Pre-wash zone tank 152 is preferably preceded by main wash zone tank 154 in the transport direction 120.
• the cleaning zones 132 downstream of the washing zone 146, comprise a rinsing zone 156.
• this rinsing zone 156 can in turn comprise a pump rinsing zone 158 and a fresh water rinsing zone 160 downstream of this pump rinsing zone 158 in the transport direction 120.
• the rinse zone 156 further includes a rinse tank 162, which may also be referred to as a rinse zone tank, or as a pump rinse tank.
• the following cleaning zones 132 are provided: a prewashing zone 148, a main washing zone 150, a pump rinsing zone 158 and a freshwater rinsing zone 160.
• a pre-wash zone tank 152 a pre-wash zone tank 152
• main wash zone tank 154 a rinse tank 162.
• a different arrangement of tanks is also possible in principle.
• the purity of a cleaning fluid in the tanks 152, 154, and 162 may increase in the transport direction 120. This may be accomplished, for example, by providing an overflow from the rinse tank 162 to the main wash zone tank 154 and / or an overflow from the main wash zone tank 154 to the pre-wash zone tank 152.
• the cleaning device 110 in the illustrated embodiment also has a plurality of cleaning systems 164, which can each be designed as nozzle systems.
• These cleaning systems 164 or nozzle systems may comprise, for example, a pre-evacuation zone nozzle system 166, which may also be designed as a pre-evacuation nozzle spray system and which may comprise, for example, at least one spray arm above and below the object to be cleaned 112.
• the pre-scavenger zone nozzle system 166 may be fed, for example, via a pre-wash zone pump 168 with cleaning fluid from the pre-wash zone tank 152.
• the cleaning system 164 may have at least one main wash zone nozzle system 170, which may be configured, for example, as a main wash zone spray nozzle system and which, for example, as shown in FIG. 1, at least one spray arm above the cleaning product 112 and at least one spray arm below the cleaning product 112 can have.
• the main wash zone nozzle system 170 may be fed with cleaning fluid from the main wash zone tank 154 via a main wash zone
• a Pumpenklar Albanyzonen- nozzle system 174 is provided which, for example, in turn, a spray arm above the acceptedsguts 112 and a spray arm below the madesguts 112 may have.
• This pump-rinsing-zone nozzle system 174 which in turn may, for example, be configured as a pump rinsing-zone spray nozzle system, can be supplied with cleaning fluid in the form of rinse-aid fluid from the rinse-aid tank 162, for example via at least one pump rinsing zone pump 176.
• a cleaning system 164 in the form of a fresh water rinsing zone nozzle system 178 is furthermore provided, which, for example, can again be designed as a fresh water rinsing zone spray nozzle system.
• This can be fed, for example via a fresh water inlet 180 from a fresh water connection 182 with fresh water.
• one or more processing devices 184 may be provided for adjusting at least one property of the fresh water.
• two tempering devices are provided by way of example in order to heat the fresh water.
• a first treatment device 184 may be provided in the form of a heat recovery device 186, such as an intake fan 188 for drawing warm air from the cleaning chamber 122 and a heat exchanger 190 for transferring the recovered heat from the exhaust air to the fresh water.
• a treatment device 184 may be provided in the form of a continuous flow heater 192 and / or a fresh water boiler, for example to finally heat the fresh water to an operating temperature, for example a temperature of 80 ° C-100 ° C, for example a temperature of 85 ° C-95 ° C. Another embodiment is possible.
• the cleaning device 110 may further include a controller 194, such as a controller having a data processing device.
• the controller 194 may For example, be set up to control a program flow of the cleaning device 110, for example by various sensors queried and / or pumps 168, 172, 176 are controlled and / or by the transport device 118 is driven.
• Various embodiments are possible and generally known to the person skilled in the art.
• the embodiment of the cleaning device 110 according to the invention relates in particular to the design of the rinsing zone 156 and, in particular, of the cleaning system 164 arranged there.
• the embodiment according to the invention is described in particular with reference to the fresh water rinsing zone nozzle system 178, by means of which the cleaning article 112 is in the form of cleaning fluid can be acted upon by fresh water, optionally with the addition of one or more auxiliaries or additives, for example with the addition of rinse aid.
• the invention could in principle also be implemented in all other rinsing systems in the dishwasher.
• the freshwater rinsing zone nozzle system comprises a plurality of rinsing nozzle units 196.
• Each of these rinse-aid nozzle units can comprise one or more rinse nozzles 198, which can deliver, for example, one or more spray jets 200 to the items to be cleaned 1 12 (not shown in FIGS. 2 and 3) on the transport device 118.
• the rinse aid nozzle units 196 are arranged at different positions along a direction transverse to the transport direction 120, for example perpendicular to the transport direction 120, in both exemplary embodiments.
• a spatial direction perpendicular to the transport direction 120 and parallel to a surface of the transport device 118 is denoted by x.
• the rinse aid nozzle units 196 are arranged offset in this direction x at right angles to the transport direction 120.
• the rinse aid nozzle units 196 can each be switched independently of the other rinsing nozzle units 196, for example between a switched-on state and a switched-off state.
• the fresh water rinsing zone nozzle system 178 can have, for example, a plurality of switching elements 208, which can be configured, for example, as valves 210.
• the rinsing nozzle units 196 can be switched independently of each other, so that, for example, controlled by the controller 194, the loading regions 202 can be independently applied by a corresponding circuit of the switching elements 208 with rinse fluid or Not.
• each rinse aid nozzle unit 196 comprises exactly one rinse aid nozzle 198, which can be switched by a corresponding switching element 208.
• a plurality of rinse aid nozzles 198 are each combined into groups, which each form a switchable rinse nozzle unit 196, which can be switched via a switching element 208, for example a valve 210.
• each rinsing nozzle unit 196 comprises a plurality of rinsing nozzles 198 arranged side by side in the direction x.
• the peculiarity of the embodiment according to the invention of the independent switchability of the rinsing nozzle units 196 arranged next to one another is that the admission of an occupancy of the transport device 118 to cleaning material 112 can be adapted.
• a demand-driven switching of the rinse nozzle units 196 can take place, depending on an occupancy of the transport device 118 at the location of the fresh water rinsing zone nozzle system 178.
• one or more cleaning material sensors 212 may be provided be.
• the handsgut- sensor 212 is provided at the inlet opening 128.
• this at least one cleaning material sensor 212 can also be arranged at other locations inside or outside the cleaning device 110, for example within the cleaning device.
• the item to be cleaned 212 may comprise an optical sensor, for example a camera system. In this way, for example, an occupancy of the transport device 118, for example a band allocation, can be detected.
• the transport speed of the transport device 118 is known, for example, by a corresponding control and / or corresponding signals in the controller 194, and the distance of the starsgut- sensor 212 from Frischiganklar Wegzonen nozzle system 178 is known accordingly can be known at any time which band occupancy is present in the loading areas 202 in the area of the fresh water rinsing zone nozzle system 178, even if the cleaning goods sensor 212 is arranged at a distance from the fresh water rinsing zone 160 in the transport direction 120. Accordingly, the controller 194 may be configured to turn on only those rinse nozzle units 196 which apply a rinse fluid 202 to rinse fluid 202 in which rinse material 112 is actually present.
• the remaining rinse nozzle units 196 can be switched off or switched off by a corresponding circuit of the switching elements 208, so that no unnecessary ejection of rinse-aid fluid takes place in these application areas 202. In this way, irrespective of the particular configuration chosen, for example according to FIG. 2 or according to FIG. 3, a need-based switching off of the rinse aid nozzle units 196 can save considerable amounts of rinse aid fluid, in particular fresh water.

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

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• 2012
  • 2012-07-02 DE DE201210211442 patent/DE102012211442A1/de active Pending
• 2013
  • 2013-06-27 EP EP13732480.2A patent/EP2866635A2/de active Pending
  • 2013-06-27 CN CN201380035864.0A patent/CN104394749B/zh active Active
  • 2013-06-27 WO PCT/EP2013/063504 patent/WO2014005920A2/de active Application Filing
• 2014
  • 2014-12-19 US US14/576,622 patent/US10335011B2/en active Active
• 2015
  • 2015-08-14 HK HK15107857.0A patent/HK1207275A1/zh unknown

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