EP0753282A1 - Dispositif pour refroidir et condenser la vapeur dégagée de la cuve d'un lave-vaisselle ou similaire - Google Patents

Dispositif pour refroidir et condenser la vapeur dégagée de la cuve d'un lave-vaisselle ou similaire Download PDF

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Publication number
EP0753282A1
EP0753282A1 EP96110968A EP96110968A EP0753282A1 EP 0753282 A1 EP0753282 A1 EP 0753282A1 EP 96110968 A EP96110968 A EP 96110968A EP 96110968 A EP96110968 A EP 96110968A EP 0753282 A1 EP0753282 A1 EP 0753282A1
Authority
EP
European Patent Office
Prior art keywords
steam
cooling
chamber
water
condensing
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
EP96110968A
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German (de)
English (en)
Other versions
EP0753282B1 (fr
Inventor
Carlo Carli
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.)
T&P SpA
Original Assignee
Tecnoplastica Prealpina SpA
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Publication date
Application filed by Tecnoplastica Prealpina SpA filed Critical Tecnoplastica Prealpina SpA
Publication of EP0753282A1 publication Critical patent/EP0753282A1/fr
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Publication of EP0753282B1 publication Critical patent/EP0753282B1/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
    • A47L15/48—Drying arrangements
    • A47L15/483—Drying arrangements by using condensers
    • 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
    • A47L15/4229—Water softening arrangements

Definitions

  • the present invention relates to a device for the condensation of the steam released from the washing drum of dishwasher machines and the like.
  • the release devices of the type referred above are produced in order to eliminate the excess steam which is formed in the washing drum during the phases of washing, hot rinsing and drying of the dishes.
  • the traditional steam release devices comprise a circular aperture for feeding "hot” steam in the release device which is coupled to a corresponding circular aperture formed in the lateral wall of the washing drum, and an outlet pipe which extends upwards where the steam is emitted, still hot, outwards, via an appropriate discharge port.
  • an excessive release of steam occurs inside the dishwasher which damages the furniture and accessories of the areas where the dishwashers are installed.
  • Dishwashers which have a tank for containing and storing water intended for regeneration of the decalcification resins, said regeneration water tank being filled via a nozzle which taps water coming from the water supply system and which has not been decalcified beforehand.
  • the object of the present invention is that of providing a device for the condensation of steam released from the washing drum of dishwasher machines and the like which allows the quantity of hot steam emitted from the dishwasher to be reduced.
  • Another object of the present invention is that of providing a device of the type referred above which allows a rapid outflow of the steam from the washing drum and fast lowering of the value of the pressure formed in the washing drum, so that any risk of intervention of the latter is avoided.
  • Yet another object of the present invention is that of providing a device of the type referred above which has a compact configuration, with little bulk, and such as to occupy a small volume inside the dishwasher.
  • regeneration water for cooling the steam allows the latter to be heated so that heated water is fed into the regeneration resins tank which makes the ion exchange of regeneration of the resins more efficient.
  • Figure 1 shows, denoted by reference numeral 10, a traditional dishwasher comprising at least one external framework 12 having a front door 14 for closing an aperture 15 via which the dishes are placed in the washing drum 16.
  • said washing drum 16 has a sump 18 and a lower aperture 20 for feeding salt for regenerating the resins in a suitable tank 56 formed in the same box 21 which houses the resins container 23.
  • the device of the present invention is situated in a block 19, together with other devices not shown or described, which is housed between the lateral wall of the washing drum 16 and the opposite wall of the chassis or shell 12 covering the dishwasher.
  • the feed water of the dishwasher is taken from the water supply system via an appropriate tap 22 or the like.
  • the device for condensation of the steam released from the washing drum of the present invention essentially comprises a chamber for storing the regeneration water 28 connected via a tapping nozzle 30 to the water feed pipe which fills the washing drum of the dishwasher and wholly designated by the numeric reference 33.
  • said water feed pipe flows into an outlet 34 and said water, via appropriate piping 35, is conveyed to the washing drum 16.
  • the device of the present invention also comprises a steam cooling and condensing chamber 36 communicating via said steam release aperture 26 with the washing drum 16 of the dishwasher machine and an upper aperture 38 for the release of cooled steam at a height level lower than said tapping nozzle 30.
  • said steam cooling chamber 36 has, as shown in Figures 4A and 4B, a first and a second head wall 40, 42 turned towards the washing drum and towards the exterior of the dishwasher respectively, and a first and second lateral wall 44, 46 and a back wall 47 which are in contact with the water which is inside the container for the regeneration water 28.
  • This allows, as already mentioned, considerable heat to be taken from the released steam so as to encourage condensation thereof.
  • hot steam is no longer emitted to the exterior of the dishwasher or at least this emission of steam is very limited and, thanks to the condensation of the steam in the cooling chamber, a pressure drop is achieved downstream of the washing drum which facilitates expulsion of the excess steam from the washing drum itself.
  • Hot regeneration water is also obtained which accelerates the process of ion exchange for regeneration of the resins.
  • the lateral walls 44, 46 of the cooling chamber have a corrugated profile such as to increase the surface of contact with the regeneration water and hence the steam cooling capacity of the system.
  • portions 44a, 44b and 46a, 46b said lateral corrugated walls 44,46 have respectively a serrated trend which further increases the surface of said walls in contact with the cold regeneration water.
  • the section of the steam cooling chamber is shown in detail in Figure 5. It indicates moreover that the head wall 40 turned towards the drum of the dishwasher is totally flat.
  • the steam condensation device of the present invention also has a system for collecting the drips in the steam emitted from the cooling chamber 36 through the aperture 38.
  • Said condensed steam collection system situated above the aperture 38 of said cooling chamber 36 consists of a plurality of fins 50 slanting downwards through approximately 45° and at whose lower ends the drips of condensation of the released steam are formed.
  • said fins 50 for collecting the condensed drips of steam released from the washing drum of the dishwasher extend laterally from vertical support portions or rods 54 attached laterally to the head walls of the block 19.
  • a further advantageous feature of the present invention consists in the fact that said cooling chamber for the released steam has said upper aperture 38 for release of the steam which is wetted by the regeneration water on two opposite lateral edges.
  • said cooling chamber for the released steam has said upper aperture 38 for release of the steam which is wetted by the regeneration water on two opposite lateral edges.
  • the control timer of the dishwasher machine commands opening of the gate of the solenoid valve 51 which allows the regeneration water to flow through the outlet 53 to the salt container 56 and from there to the resins container 23, where it regenerates the same resins or takes the calcium ions withheld by the latter thanks to an ion exchange between the sodium ions of the salt solubilised in said regeneration water following the flow of the latter in contact with the salt and calcium ions attached to the resins.
  • water is used for regeneration which has already been decalcified, and all this with the dual purpose of using for regeneration water which, being totally lacking in calcium ions, facilitates the ion exchange for regeneration of the resins, that is to say the removal of said calcium ions from the decalcification resins.
  • the pipe 33 for feeding the water taken from the supply system by means of the tap 22 also comprises a first section 102, in which the mains water enters via the outlet 103, comprising an air break 104 which conveys the "hard” mains water through the outlet 106 to the resins tank 23.
  • the decalcified water flowing from the resins tank 23 enters, via an outlet 108, a portion 110 of the water feed pipe from which it flows out via the outlet 34 and then reaches the washing drum 16 of the dishwasher.
  • said tapping nozzle 30 for filling the tank for the regeneration water is provided on the part of the water feed pipe 110 for filling the washing drum which is downstream of the tank for the decalcification resins.
  • the block 19 containing the device of the present invention is preferably manufactured in a polymeric material by sealing with a hot blade two detached and matching parts, one of which has the projections defining the channels and lateral walls of the basins or chambers of the device.
  • a manufacturing method is in any case wholly traditional.

Landscapes

  • Washing And Drying Of Tableware (AREA)
EP96110968A 1995-07-14 1996-07-08 Dispositif pour refroidir et condenser la vapeur dégagée de la cuve d'un lave-vaisselle ou similaire Expired - Lifetime EP0753282B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI951532A IT1275550B (it) 1995-07-14 1995-07-14 Un dispositivo per la condensazione dei vapori di sfiato dalla vasca di lavaggio di macchine lavastoviglie e simili
ITMI951532 1995-07-14

Publications (2)

Publication Number Publication Date
EP0753282A1 true EP0753282A1 (fr) 1997-01-15
EP0753282B1 EP0753282B1 (fr) 1998-12-02

Family

ID=11371985

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96110968A Expired - Lifetime EP0753282B1 (fr) 1995-07-14 1996-07-08 Dispositif pour refroidir et condenser la vapeur dégagée de la cuve d'un lave-vaisselle ou similaire

Country Status (3)

Country Link
EP (1) EP0753282B1 (fr)
DE (1) DE69601055T2 (fr)
IT (1) IT1275550B (fr)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0978250A2 (fr) * 1998-08-06 2000-02-09 Bitron S.p.A. Dispositif pour sécher la vaisselle à la fin du programme de lavage d'un lave-vaisselle
EP1023869A2 (fr) * 1999-01-29 2000-08-02 T & P S.p.A. Dispositif pour sécher la vaisselle et lave-vaisselle comportant un tel dispositif
EP1055389A2 (fr) * 1999-05-26 2000-11-29 Miele & Cie. GmbH & Co. Lave-vaisselle commandé par programme avec dispositif pour sécher la vaisselle
US6170166B1 (en) * 1998-07-10 2001-01-09 Ecolab Inc. Removal of heat and water vapor from commercial dishwashing machines
EP1090580A2 (fr) * 1999-09-29 2001-04-11 AEG Hausgeräte GmbH Lave-vaiselle avec une cuve
FR2805729A1 (fr) * 2000-03-03 2001-09-07 Aeg Hausgeraete Gmbh Lave-vaisselle comportant un dispositif de condensation
DE10013415A1 (de) * 2000-03-03 2001-09-13 Aeg Hausgeraete Gmbh Geschirrspülmaschine mit einer Kondensationsvorrichtung
EP1656877A2 (fr) * 2004-11-05 2006-05-17 Samsung Electronics Co., Ltd. Lave-vaisselle
CN100500078C (zh) * 2005-10-31 2009-06-17 松下电器产业株式会社 餐具清洗机
WO2011080113A1 (fr) * 2009-12-31 2011-07-07 Arcelik Anonim Sirketi Lave-vaisselle à propriétés de séchage et d'isolation améliorées
ITTO20110985A1 (it) * 2011-10-28 2013-04-29 Bitron Spa Dispositivo di asciugatura per lavastoviglie
US8961703B2 (en) * 2008-05-08 2015-02-24 Bsh Bosch Und Siemens Hausgeraete Gmbh Dishwasher
US9492051B2 (en) 2010-01-15 2016-11-15 John David Hockaday Vapor removal system
WO2016203440A1 (fr) * 2015-06-19 2016-12-22 Bitron S.P.A. Composant intégré pour lave-vaisselle
CN108324218A (zh) * 2018-03-22 2018-07-27 宁波欧琳厨具有限公司 一种清洗设备的水汽循环结构

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8372214B2 (en) 2009-01-29 2013-02-12 Insinger Machine Company Vapor extractor for a warewasher

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0463576A1 (fr) * 1990-06-27 1992-01-02 Zanussi Elettrodomestici S.p.A. Procédé et installation pour la condensation de l'humidité dans les machines à laver
EP0486828A1 (fr) * 1990-11-23 1992-05-27 Bosch-Siemens HausgerÀ¤te GmbH Dispositif pour sécher la vaisselle dans des lave-vaisselle

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0463576A1 (fr) * 1990-06-27 1992-01-02 Zanussi Elettrodomestici S.p.A. Procédé et installation pour la condensation de l'humidité dans les machines à laver
EP0486828A1 (fr) * 1990-11-23 1992-05-27 Bosch-Siemens HausgerÀ¤te GmbH Dispositif pour sécher la vaisselle dans des lave-vaisselle

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USRE40123E1 (en) 1998-07-10 2008-03-04 Ecolab Inc. Removal of heat and water vapor from commercial dishwashing machines
US6170166B1 (en) * 1998-07-10 2001-01-09 Ecolab Inc. Removal of heat and water vapor from commercial dishwashing machines
EP0978250A3 (fr) * 1998-08-06 2000-11-22 Bitron S.p.A. Dispositif pour sécher la vaisselle à la fin du programme de lavage d'un lave-vaisselle
EP0978250A2 (fr) * 1998-08-06 2000-02-09 Bitron S.p.A. Dispositif pour sécher la vaisselle à la fin du programme de lavage d'un lave-vaisselle
EP1023869A2 (fr) * 1999-01-29 2000-08-02 T & P S.p.A. Dispositif pour sécher la vaisselle et lave-vaisselle comportant un tel dispositif
EP1023869A3 (fr) * 1999-01-29 2001-01-03 T & P S.p.A. Dispositif pour sécher la vaisselle et lave-vaisselle comportant un tel dispositif
EP1055389A3 (fr) * 1999-05-26 2002-05-08 Miele & Cie. GmbH & Co. Lave-vaisselle commandé par programme avec dispositif pour sécher la vaisselle
EP1055389A2 (fr) * 1999-05-26 2000-11-29 Miele & Cie. GmbH & Co. Lave-vaisselle commandé par programme avec dispositif pour sécher la vaisselle
EP1090580A2 (fr) * 1999-09-29 2001-04-11 AEG Hausgeräte GmbH Lave-vaiselle avec une cuve
EP1090580A3 (fr) * 1999-09-29 2002-10-23 AEG Hausgeräte GmbH Lave-vaiselle avec une cuve
FR2805729A1 (fr) * 2000-03-03 2001-09-07 Aeg Hausgeraete Gmbh Lave-vaisselle comportant un dispositif de condensation
DE10013415A1 (de) * 2000-03-03 2001-09-13 Aeg Hausgeraete Gmbh Geschirrspülmaschine mit einer Kondensationsvorrichtung
DE10013415B4 (de) * 2000-03-03 2004-12-02 AEG Hausgeräte GmbH Geschirrspülmaschine mit einer Kondensationsvorrichtung
EP1656877A2 (fr) * 2004-11-05 2006-05-17 Samsung Electronics Co., Ltd. Lave-vaisselle
EP1656877A3 (fr) * 2004-11-05 2006-05-31 Samsung Electronics Co., Ltd. Lave-vaisselle
CN100500078C (zh) * 2005-10-31 2009-06-17 松下电器产业株式会社 餐具清洗机
US8961703B2 (en) * 2008-05-08 2015-02-24 Bsh Bosch Und Siemens Hausgeraete Gmbh Dishwasher
WO2011080113A1 (fr) * 2009-12-31 2011-07-07 Arcelik Anonim Sirketi Lave-vaisselle à propriétés de séchage et d'isolation améliorées
US9101255B2 (en) 2009-12-31 2015-08-11 Arcelik Anonim Sirketi Dishwasher with improved drying and insulation properties
US9492051B2 (en) 2010-01-15 2016-11-15 John David Hockaday Vapor removal system
ITTO20110985A1 (it) * 2011-10-28 2013-04-29 Bitron Spa Dispositivo di asciugatura per lavastoviglie
EP2586357A1 (fr) * 2011-10-28 2013-05-01 Bitron S.p.A. Système de séchage pour lave-vaisselle
WO2016203440A1 (fr) * 2015-06-19 2016-12-22 Bitron S.P.A. Composant intégré pour lave-vaisselle
CN108064143A (zh) * 2015-06-19 2018-05-22 比特龙有限公司 用于洗碗机的集成部件
US10646098B2 (en) 2015-06-19 2020-05-12 Bitron S.P.A. Integrated component for a dishwashing machine
CN108324218A (zh) * 2018-03-22 2018-07-27 宁波欧琳厨具有限公司 一种清洗设备的水汽循环结构

Also Published As

Publication number Publication date
DE69601055D1 (de) 1999-01-14
ITMI951532A1 (it) 1997-01-14
ITMI951532A0 (it) 1995-07-14
DE69601055T2 (de) 1999-08-05
EP0753282B1 (fr) 1998-12-02
IT1275550B (it) 1997-08-07

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