EP1092384A2 - Procédé et dispositif pour déterminer le type et la concentration des mélanges dans un liquide - Google Patents

Procédé et dispositif pour déterminer le type et la concentration des mélanges dans un liquide Download PDF

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Publication number
EP1092384A2
EP1092384A2 EP00121978A EP00121978A EP1092384A2 EP 1092384 A2 EP1092384 A2 EP 1092384A2 EP 00121978 A EP00121978 A EP 00121978A EP 00121978 A EP00121978 A EP 00121978A EP 1092384 A2 EP1092384 A2 EP 1092384A2
Authority
EP
European Patent Office
Prior art keywords
liquid
hollow body
radiation
concentration
type
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP00121978A
Other languages
German (de)
English (en)
Other versions
EP1092384A3 (fr
EP1092384B1 (fr
Inventor
Roland Dipl.-Ing. Rieger (FH)
Christian Wolf
Antonio Rizzo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens Hausgeraete GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Publication of EP1092384A2 publication Critical patent/EP1092384A2/fr
Publication of EP1092384A3 publication Critical patent/EP1092384A3/fr
Application granted granted Critical
Publication of EP1092384B1 publication Critical patent/EP1092384B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4297—Arrangements for detecting or measuring the condition of the washing water, e.g. turbidity
    • 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
    • A47L15/4225—Arrangements or adaption of recirculation or discharge pumps

Definitions

  • the invention relates to a method for determining the type and concentration of admixtures in a liquid in which radiation is radiated into the liquid is and in which the radiation emerging again is detected and starting therefrom the type and concentration of admixtures is determined and a device to determine the type and concentration of admixtures in a liquid at least one measuring section through which the liquid flows, into which by means of at least radiation is emitted from a radiation source, with at least one radiation receiver the liquid let through and / or laterally scattered and / or amount of radiation scattered backwards is detected, and with at least one unit to control the at least one radiation source and to evaluate the signal of the at least one radiation receiver.
  • a method and a device of the type mentioned at the outset for treating dishes in dishwashers is known from DE-A1-198 06 559, in which the liquid to be examined - in this case a liquid Cleaning liquid called "washing liquid" is kept in circulation, ie is circulated by means of a pump. Based on the determined data with regard to admixture components - in this case with regard to the contamination components in the washing liquid - parameters are set for an ongoing washing program in the publication mentioned.
  • the invention is therefore based on the object in a method and a device of the type mentioned at the outset the risk of falsifying the result of the investigation and thus avoiding the process controlled with this result in a simple manner.
  • the radiation radiated into the liquid in a region of the liquid radiate in which there are no gas bubbles.
  • the invention is a method of the type mentioned succeeded in a simple way, the risk of Falsification of the result of the investigation and thus of the result controlled Avoid operation.
  • the liquid is in a rapid circular motion transferred.
  • the centrifugal force acts through the rapid rotation of the liquid on the liquid and on the gas bubbles enclosed in the liquid as well as on the proportion of admixtures present in the liquid.
  • the heavy blending proportions are due to the higher centrifugal forces in the moving in circles Liquid moves further out than the lighter gas bubbles. They also displace gas bubbles located there inevitably move outward inside.
  • This arranges the gas bubbles according to the invention Process essentially on one level, namely as far as possible inwards, i.e. as far as possible towards the center of the circular motion and it's on simple way possible, the radiation radiated into the liquid into one Radiate in the area of the liquid in which there are no gas bubbles.
  • the object described above is carried out in the device according to the invention of the method with at least one measuring section through which the liquid flows, in which is emitted by means of at least one radiation source, with at least one a radiation receiver, the liquid let through and / or laterally scattered and / or backwards scattered amount of radiation is detected, and with at least a unit for controlling the at least one radiation source and for evaluating the signal of the at least one radiation receiver, according to the invention thereby solved that the liquid entry of the device with a device for generation a circular movement of the liquid is equipped.
  • Generated means for generating a circular movement of the liquid circular movement of the liquid acts, as already explained above, which acts Centrifugal force on the liquid and on the gas bubbles enclosed in the liquid as well as the proportion of admixtures present in the liquid.
  • the heavy ones Mixing proportions are due to the higher centrifugal forces in the moving in the circle Liquid moves further out than the lighter gas bubbles. Also displace the gas bubbles that are inevitably moved outwards further inside.
  • This arranges the gas bubbles according to the invention Process essentially on one level, namely as far as possible inwards, i.e. as far as possible towards the center of the circular movement and it is possible in a simple way, the radiation radiated into the liquid radiate into an area of the liquid in which there are no gas bubbles.
  • the measuring section in the device for Arranged generating a circular movement of the liquid According to the The task is. Measuring section in an area of the device for generating a circular movement of the liquid arranged in which the separation of the admixture however, the admixing components have not yet been mixed again has occurred again. With this measure, a renewed mixing of the in the liquid contained admixtures and the enclosed gas bubbles before the task Determination of the type and concentration of admixtures in the Avoid liquids safely.
  • the measuring section is immediately at the end the device for generating a circular movement of the liquid or alternatively in the device for generating a circular movement of the liquid in the area the end of the device.
  • the liquid enters the device a hollow body with a circular cross section, advantageously a helical trained hollow body, preferably a spiral hollow body.
  • a sufficient speed of the circular movement of the liquid becomes spiral trained hollow body preferably achieved in that the liquid on the outside The circumference of the spiral hollow body is introduced and at the innermost circumference of the spiral hollow body is rejected.
  • the hollow body is advantageously a tube, alternatively the hollow body can also be a Pipe or a one-piece part with appropriately designed passages.
  • the hollow body is a pump housing a pump.
  • the pump housing a pump since the pump housing a pump usually has a spiral-shaped liquid guide, anyway when using the method according to the invention and the device according to the invention existing component can be used.
  • Adequate speed of circular motion of the liquid is in use a pump housing of a pump secured as a hollow body in that the hollow body a pump housing of a pump continued by a circular design Is hollow body.
  • the device according to the invention is advantageously in water-carrying cleaning machines to determine the type and concentration of contaminants and / or cleaning agents arranged in the cleaning liquid, causing the cleaning operations can be controlled.
  • the device according to the invention is preferably used in water-bearing household appliances Determination of the type and concentration of pollution and / or detergent components is arranged in the cleaning liquid, whereby the cleaning processes are controlled can be.
  • the device according to the invention is particularly preferred in dishwashers Determination of the type and concentration of pollution and / or detergent components arranged in the wash liquor, whereby the wash program can be controlled.
  • the method according to the invention and the device according to the invention for determination The type and concentration of admixing components in a liquid is based on exemplary embodiments explained in a dishwasher.
  • a washing container 1 of the dishwasher is for loading and unloading an upper or a lower crockery basket 2, 3 a front door 4 accessible.
  • the dishes are washed a cleaning liquid called a washing liquor by means of a circulation pump 5
  • a riser pipe 6 is pumped to two rotatable spray arms 7, 8, which are below the respective Dish rack 2, 3 are arranged.
  • the device 10, 10 ', 10' 'according to the invention which is only indicated in FIG.
  • the washing program is set by of parameters by means of a unit, not shown, for controlling the at least one a radiation source and for evaluating the signal of the at least one radiation receiver, the component of the device 10, 10 ', 10' 'and in the Embodiments is part of a program control unit, not shown, controlled.
  • a reliable function of the device 10, 10 ', 10' 'according to the invention is ensured by that in all the illustrated embodiments in the direction of flow - with Arrows indicated - after the circulation pump 5 and before the liquid inlet into the rinsing tank 1, in the exemplary embodiments in front of the riser pipe 6.
  • a liquid inlet 11, 11 ', 11' 'of the device 10, 10', 10 '' with a Device 12, 12 ', 12' 'equipped for generating a circular movement of the washing liquor is arranged.
  • the measuring section could also be in the facility to generate a circular movement of the washing liquor, in one area the facility in which the separation of the admixture components has already taken place renewed mixing of the admixtures has not yet occurred again his.
  • FIG. 2 shows an advantageous embodiment of the invention in which the device 12 for generating a circular movement of the washing liquor as a helical one Hollow body is designed.
  • the device 12 for generating a circular movement of the washing liquor as a helical one Hollow body is designed.
  • the device 12 for generating a circular movement of the washing liquor as a helical one Hollow body is designed.
  • Fig. 2 is as Hollow body uses a tube, alternatively could be a hose or a one-piece Use parts with appropriately designed passages.
  • a sufficient speed of the circular movement of the washing liquor from three better four turns is achieved. This is a very simple way to generate circular movement of the washing liquor by the method according to the invention.
  • Fig. 3 the preferred embodiment of the invention is shown in which the device 12 'to generate a circular movement of the washing liquor as a spiral Hollow body is designed.
  • Hollow body uses a tube, alternatively could be a hose or a one-piece Use parts with appropriately designed passages.
  • Adequate The speed of the circular movement of the washing liquor is spiral-shaped Hollow body preferably achieved in that the washing liquor on the outer circumference of the Spiral-shaped hollow body initiated and on the innermost circumference of the spiral trained hollow body is led to the measuring section 13 '.
  • a sufficient speed of the circular movement of the washing liquor from two better three turns is reached. This is also a very simple option to generate a circular movement of the washing liquor using the method according to the invention, the spiral-shaped hollow body due to its essentially only horizontal expansion is also extremely space-saving.
  • FIG. 4 shows a further advantageous embodiment of the invention, in which the device 12 '' for generating a circular movement of the washing liquor a pump housing 9 of the circulation pump 5.
  • Adequate speed of circular motion of the Liquid is thereby when using the pump housing 9 of the circulation pump 5 ensured that this by a circular hollow body 14 ", which again as Tube is formed, alternatively, a hose or a one-piece Part with appropriately designed passages will continue to be used.
  • a circular hollow body 14 ", which again as Tube is formed, alternatively, a hose or a one-piece Part with appropriately designed passages will continue to be used.
  • Pump housing 9 of a pump and thus also the circulation pump 5 of a dishwasher usually has a spiral liquid guide, can advantageously in this embodiment of the invention when using the invention Method and the device 10 '' used in any case existing component become.
  • FIG. 5 is an enlarged view of the output area of the device 12, 12 ', 12' ' for generating a circular movement of the liquid of the device according to the invention 10, 10 ', 10' 'for determining the type and concentration of pollution components shown in section in the washing liquor to determine the method of the invention the type and concentration of admixtures in a liquid - in the exemplary embodiments to determine the type and concentration of pollution in the washing liquor and the function of the device 10, 10 ', 10' 'according to the invention to explain again.
  • all the exemplary embodiments have in common that the measuring section 13, 13 ', 13' 'immediately at the end of the device 12, 12', 12 '' is arranged to generate a circular movement of the washing liquor.

Landscapes

  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Washing And Drying Of Tableware (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
  • Analysing Materials By The Use Of Radiation (AREA)
EP00121978A 1999-10-15 2000-10-09 Lave-vaisselle et procédé pour déterminer le type et la concentration des mélanges dans un liquide Expired - Lifetime EP1092384B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19949801 1999-10-15
DE19949801A DE19949801A1 (de) 1999-10-15 1999-10-15 Verfahren und Vorrichtung zur Bestimmung der Art und Konzentration von Beimischungsanteilen in einer Flüssigkeit

Publications (3)

Publication Number Publication Date
EP1092384A2 true EP1092384A2 (fr) 2001-04-18
EP1092384A3 EP1092384A3 (fr) 2001-10-10
EP1092384B1 EP1092384B1 (fr) 2009-08-05

Family

ID=7925796

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00121978A Expired - Lifetime EP1092384B1 (fr) 1999-10-15 2000-10-09 Lave-vaisselle et procédé pour déterminer le type et la concentration des mélanges dans un liquide

Country Status (4)

Country Link
EP (1) EP1092384B1 (fr)
AT (1) ATE438333T1 (fr)
DE (2) DE19949801A1 (fr)
ES (1) ES2329436T3 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7246625B2 (en) * 2000-11-28 2007-07-24 Miele & Cie. Gmbh & Co. Dishwasher
EP1472967A3 (fr) * 2003-04-29 2007-08-08 Miele & Cie. KG Dispositif avec un capteur de turbidité pour un lave-vaisselle ou une machine à laver
US11225746B2 (en) 2018-08-27 2022-01-18 Ecolab Usa Inc. System and technique for extracting particulate-containing liquid samples without filtration

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10145601A1 (de) * 2001-04-27 2002-10-31 Aweco Appliance Sys Gmbh & Co Haushaltsmaschine
DE102005012519A1 (de) * 2005-03-16 2006-09-21 Aweco Appliance Systems Gmbh & Co. Kg Haushaltsmaschine, insbesondere Geschirrspüler oder Waschmaschine
DE102017123048A1 (de) 2016-10-19 2018-04-19 Miele & Cie. Kg Geschirrspülmaschine, insbesondere Haushaltsgeschirrspülmaschine

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0716869A2 (fr) 1994-10-27 1996-06-19 Mikuni Kikai Ltd. Séparateur gaz-liquide équipé d'un moniteur de particules
DE19806559A1 (de) 1998-02-17 1999-08-19 Bosch Siemens Hausgeraete Verfahren und Vorrichtung zur Behandlung von Geschirr in Spülmaschinen

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2548440C3 (de) * 1975-10-29 1980-01-24 Gesellschaft Fuer Strahlen- Und Umweltforschung Mbh, 8000 Muenchen Anordnung zur kontinuierlichen Trübenmessung von Bakterien-Kulturen
GB2055634B (en) * 1979-08-16 1983-01-26 Ishikawajima Harima Heavy Ind Gas-liquid separators
DE19705927A1 (de) * 1997-02-17 1998-08-20 Aeg Hausgeraete Gmbh Geschirrspülmaschine mit einer Einrichtung zum Ermitteln des Verschmutzungsgrades einer Spülflüssigkeit

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0716869A2 (fr) 1994-10-27 1996-06-19 Mikuni Kikai Ltd. Séparateur gaz-liquide équipé d'un moniteur de particules
DE19806559A1 (de) 1998-02-17 1999-08-19 Bosch Siemens Hausgeraete Verfahren und Vorrichtung zur Behandlung von Geschirr in Spülmaschinen

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7246625B2 (en) * 2000-11-28 2007-07-24 Miele & Cie. Gmbh & Co. Dishwasher
EP1472967A3 (fr) * 2003-04-29 2007-08-08 Miele & Cie. KG Dispositif avec un capteur de turbidité pour un lave-vaisselle ou une machine à laver
US7392813B2 (en) 2003-04-29 2008-07-01 Miele & Cie. Kg Device for a turbidity sensor for a dishwasher or washing machine
US11225746B2 (en) 2018-08-27 2022-01-18 Ecolab Usa Inc. System and technique for extracting particulate-containing liquid samples without filtration
US11739460B2 (en) 2018-08-27 2023-08-29 Ecolab Usa Inc. System and technique for extracting particulate-containing liquid samples without filtration

Also Published As

Publication number Publication date
DE50015703D1 (de) 2009-09-17
EP1092384A3 (fr) 2001-10-10
ES2329436T3 (es) 2009-11-26
DE19949801A1 (de) 2001-04-19
ATE438333T1 (de) 2009-08-15
EP1092384B1 (fr) 2009-08-05

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