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EP0036217B1 - Machine à laver, en particulier la vaisselle - Google Patents

Machine à laver, en particulier la vaisselle Download PDF

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Publication number
EP0036217B1
EP0036217B1 EP81102025A EP81102025A EP0036217B1 EP 0036217 B1 EP0036217 B1 EP 0036217B1 EP 81102025 A EP81102025 A EP 81102025A EP 81102025 A EP81102025 A EP 81102025A EP 0036217 B1 EP0036217 B1 EP 0036217B1
Authority
EP
European Patent Office
Prior art keywords
rinsing
chamber
washing
trough
washing machine
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.)
Expired
Application number
EP81102025A
Other languages
German (de)
English (en)
Other versions
EP0036217A1 (fr
Inventor
Egon Schröder
Rudolf Ing. Grad Pankratz
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.)
Stierlen Maquet AG
Original Assignee
Stierlen Maquet AG
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 Stierlen Maquet AG filed Critical Stierlen Maquet AG
Publication of EP0036217A1 publication Critical patent/EP0036217A1/fr
Application granted granted Critical
Publication of EP0036217B1 publication Critical patent/EP0036217B1/fr
Expired 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
    • A47L15/24—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

Definitions

  • the invention relates to a cleaning machine, in particular for dishes, the type specified in the preamble of claim 1.
  • the rinsing liquid container is designed as a tank delimited at the bottom by the bottom of the rinsing chamber, in which rinsing liquid runs down the inside of the rinsing chamber, sprays down from the first and second rinsing nozzle arrangement and drips from the rinsed product is caught.
  • this rinse liquid container is filled and hot rinse liquid is supplied via the first rinse nozzle arrangement, excess rinse liquid flows from the rinse liquid container to the wash liquor container via an overflow pipe.
  • the rinsing liquid flowing down the inside of the rinsing chamber has a lower temperature than the rest of the rinsing liquid entering the rinsing liquid container when it enters the rinsing liquid container due to its cooling on the walls.
  • the temperature of the post-rinsing liquid sprayed via the second rinsing nozzle arrangement also results in energy losses through the walls of the post-rinsing liquid container designed as a large-volume tank.
  • the invention has for its object to develop a cleaning machine of the type mentioned in a structurally uncomplicated manner such that there is a reduced energy requirement.
  • the rinsing liquid that runs down the inside of the rinsing chamber and is cooler with respect to the temperature of the rinsing liquid in the rinsing liquid container is not conducted into the rinsing liquid container, but is removed from the rinsing chamber.
  • the cleaning machine shown in the single figure is used to clean dishes, for example plates 10, of which a number is placed in a liquid-permeable carrier 12.
  • Plate 10 and carrier 12 are conveyed on a straight conveying path by means of a conveyor, not shown, in the conveying direction indicated by an arrow 14, namely from a feed table 16 through a washing chamber 18 and a rinsing chamber 20 directly adjoining it to a removal table 22.
  • the conveying can be carried out step by step in such a way that the residence time between successive conveying steps corresponds to the required treatment time in the washing chamber 18. especially In such dishwashing machines, however, it is expedient to provide continuous conveying, which is also selected in the exemplary embodiment.
  • Appropriate locks are expediently provided at the inlet to the washing chamber 18, at the outlet of the rinsing chamber 20 and between the chambers 18, 20, which largely prevent the escape of steam and liquid or the transfer of steam and liquid between the chambers 18, 20.
  • a washing nozzle arrangement 24 is provided in the washing chamber 18.
  • the lower part of the wash chamber 18 is designed as a wash liquor container 25 for a wash liquor 26, the level 28 of which below the wash nozzle arrangement 24 is kept at least approximately constant by the supply of rinsing liquid and fresh water, if necessary, on the one hand, and by removing used wash liquor on the other hand.
  • the rinsing has the purpose of removing the active, usually alkaline components of the washing liquor and, if appropriate, of the remnants of the washing liquor. Rinsed suspended dirt particles contained therein.
  • sterilization is generally sought and also in the exemplary embodiment.
  • a rinse liquid which is at least 80 ° C. hot is supplied via a line 34: This essentially consists of hot, pure water, which, however, can also contain additives and in particular generally contains a rinse aid.
  • the rinsing liquid passes through a first nozzle arrangement 36 with nozzles 38, 39 onto the plates or other items to be washed located in the rinsing chamber 20.
  • the first nozzle arrangement 36 shown only schematically, comprises a plurality of nozzles 38, 39 which are arranged in the rear part of the rinse chamber 20 which is downstream with respect to the conveying direction (arrow 14).
  • the amount of hot rinse liquid supplied via the line 34 per unit of time is therefore often less than the amount of wash liquor which is dispensed per unit of time via the wash nozzle arrangement 24 and which makes up the throughput of the first circulation pump 32. Therefore, as long as there are plates 10 to be rinsed in the rinse chamber 20 in the area of the first rinse nozzle arrangement 36, a predetermined amount of hot rinse liquid per unit time is selected, which is selected depending on the conveying speed of the plates 10 so that each standard plate is 250 mm up to 260 mm diameter 0.1 1 rinse liquid can be sprayed out.
  • the nozzles 38, 39 distribute the sprayed rinse liquid in the finest jets, possibly up to a spray mist, in order to wet the plates 10 or other washware as evenly as possible and on all sides.
  • the rinsing liquid drained from the plates 10 or other items to be washed is collected and fed by means of a second circulation pump 40 to a second rinsing nozzle arrangement 42, which comprises only schematically indicated nozzles 44, 46.
  • a second rinsing nozzle arrangement 42 which comprises only schematically indicated nozzles 44, 46.
  • nozzles 44, 46 are provided, which generate very thin spray jets or a spray mist in order to intensively wet and rinse the plates 10 or other items to be washed.
  • the pressure which the second circulation pump 40 generates and which exits the rinsing liquid from the nozzles 44, 46 should, as in the exemplary embodiment, be approximately as great as the pressure at which the hot rinsing liquid exits the nozzles 38, 39 of the first rinsing nozzle arrangement 36 . If the pressures of the rinsing nozzle arrangements 36, 42 are selected differently, that of the second rinsing nozzle arrangement 42 should rather be somewhat higher.
  • the throughput of the second circulation pump 40 should, in order to achieve a significantly increased rinsing effect compared to the supply of hot rinsing liquid only via the first rinsing nozzle arrangement 36, be at least as great as the predetermined amount of hot rinsing liquid supplied via line 34 on the other hand Advantages if the throughput of the second circulation pump is not chosen to be too high and in any case several times lower than the throughput of the first circulation pump 32.
  • low throughput of the second circulation pump 40 means a relatively low electrical power requirement for driving it. Furthermore, if the throughput is not too high, rapid recirculation of the rinse liquor is avoided, which would otherwise lead to the rinse liquid coming into contact with the walls of the rinse chamber 20 in too large a quantity or too often,
  • a third aspect regarding the energy saving is that a second circulating pump 40 with a relatively low throughput requires an upstream rinsing liquid container of only a relatively small volume, which therefore does not give off too much heat to the surroundings.
  • Another important advantage of the design of the throughput of the second rinse pump 40 is that the overall length of the rinse chamber 20 can thereby be shortened and still be avoided that rinse liquid dispensed via the second rinse nozzle arrangement 42 still reaches the plates 10 or other wash items shortly before these leave the rinsing chamber 20 towards the removal table 22.
  • the latter must therefore be avoided because otherwise components of the washing liquor 26 washed off from the plates entering the rinsing chamber 20, namely active alkaline detergents and suspended dirt particles, could again reach the plates 10 emerging from the rinsing chamber 20.
  • this is already achieved in that the first rinsing nozzle arrangement 36 is at a certain distance in the conveying direction from the second rinsing nozzle arrangement 42 located upstream from it.
  • the distance of the rinsing nozzle arrangements 36, 42 measured from each other in the conveying direction can be selected to be relatively small and thus a relatively small overall length of the rinsing chamber 20 is also achieved.
  • the throughput of the second circulation pump 40 is selected such that it is five times greater than the predetermined amount of hot rinsing liquid which is supplied to the first rinsing nozzle arrangement 36 via the line 34.
  • An at least approximate dimensioning of this type has proven to be optimal; depending on the type and type of items to be cleaned, the throughput of the second circulation pump 40 is expediently three to five times as large as the predetermined amount per unit of time of hot rinse water which is supplied via the first rinse nozzle arrangement 36.
  • a flat trough 58 with a flat bottom 60 is provided as the rinsing liquid container, which is arranged in the lower section 52 of the rinsing chamber 20 above the bottom 48 at a distance from the inside of the rinsing chamber 20 and the bottom 48.
  • the tub 58 has at its bottom 60 an outlet 64 located at the bottom, which is connected by an collar 66 placed over the outlet 64 and a pipe socket 72 to an inlet opening 70 of a further vessel 68 which is arranged below the bottom 48.
  • This vessel 68 has the shape of a lying cylinder and is connected on its underside to an inlet 54 of the lower-lying second circulation pump 40.
  • the vessel 68 is provided with an electrical heating device 74 in order, if necessary.
  • the vessel 68 is expediently surrounded at least on its outer surface by a heat-insulating layer 76.
  • a cleaning filter 56 is arranged, which is kept sealed approximately at the level of the bottom 48 of the rinse chamber 20 on its circumference in such a way that after the outlet 64, which is sealed in the collar 66, is removed from the collar 66, it is easy to get inside the rinse chamber 20 can be taken out in order to carry out cleaning or replacement.
  • the described construction of the tub 58 provides several advantages in terms of the power requirement.
  • First, the rinse liquid collected in the tub 58 is isolated from the walls of the rinse chamber 20 by a volume of air, which means that little heat is released to the environment, which means that post-heating of the recirculating rinse liquid is less or not necessary at all and air conditioning of the environment is less Energy expenditure is possible.
  • Second, rinse liquid sprayed onto the inside of the walls of the rinse chamber 20 does not get into the rinse liquid container formed by the tub 58, but flows off to the bottom 48 of the rinse chamber 20. Since this is higher than the level 28 of the wash liquor 26 in the wash liquor container 25, the rinse liquid which is cooler than the rinse liquid in the tub 58 flows directly from the bottom 48 into the wash chamber 18.

Landscapes

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

Claims (8)

1. Machine à laver, en particulier la vaisselle (10), comprenant au moins une chambre de lavage (18), un réservoir de lessive (25) prévu à proximité du côté inférieur de cette chambre, une chambre de rinçage (20) disposée à la suite de la chambre de lavage (18) et raccordée de préférence à celle-ci dans le sens du déplacement (flèche 14) des articles (10) à laver mobiles de préférence en continu le long d'un chemin de déplacement, une première rampe (36) de buses de rinçage montée dans la chambre de rinçage (20), alimentée en liquide de rinçage chaud, un réceptacle de liquide de rinçage (58) prévu à proximité du côté inférieur de la chambre de rinçage (20), une deuxième rampe (42) de buses de rinçage montée dans la chambre de rinçage (20), disposée de préférence en amont de la première rampe (36) de buses de rinçage dans le sens du déplacement, et une pompe de circulation (40), refoulant le liquide de rinçage du réceptacle de liquide de rinçage (58) à la deuxième rampe (42) de buses de rinçage, le liquide de rinçage en excédent étant évacué de la chambre de rinçage (20) et conduit de préférence au réservoir de lessive (25), caractérisée en ce que le réceptacle de liquide de rinçage est constitué par une cuve (58) dont le bord périphérique (62) est écarté de tous les côtés des faces intérieures de la chambre de rinçage (20), et en ce que le liquide de rinçage qui ruisselle le long des faces intérieures de la chambre de rinçage (20) et le liquide qui passe éventuellement au-dessus du bord (62) du réceptacle (58) sont évacués de la chambre de rinçage (20).
2. Machine à laver selon la revendication 1 caractérisée en ce que la cuve (58) est tenue espacée du fond (48) de la chambre de rinçage (20) sur lequel s'écoule le liquide de rinçage qui ruisselle des faces intérieures de la chambre de rinçage et qui est évacué de ce fond.
3. Machine à laver selon la revendication 2 caractérisée en ce que le fond (48) de la chambre de rinçage (20) est au-dessus du niveau (28) de la lessive (26) se trouvant dans le réservoir de lessive (25) et ce fond (48) se termine librement en direction de la chambre de lavage (18), de sorte que le liquide de rinçage courant sur ce fond (48) s'écoule directement dans la chambre de lavage (18).
4. Machine à laver selon l'une quelconque des revendications 1 à 3 caractérisée en ce que le volume de la cuve (58) est plusieurs fois plus petit que le volume de la lessive (26) se trouvant dans le réservoir de lessive (25).
5. Machine à laver selon l'une quelconque des revendications 1 à 4 caractérisée en ce que la cuve (58) est du type aplati.
6. Machine à laver selon l'une quelconque des revendications 1 à 5 caractérisée en ce que la cuve (58) présente pour assurer son raccordement avec la pompe de circulation (40) une sortie (64) située à sa partie inférieur.
7. Machine à laver selon la revendication 6 caractérisée en ce que la cuve (58) est raccordée par sa sortie (64) de façon facilement démontable.
8. Machine à laver selon l'une quelconque des revendications 1 à 7 caractérisée en ce qu'un récipient (68) traversé par le courant de liquide de rinçage et muni d'un dispositif de chauffage (74) est disposé entre la cuve (58) et la pompe de circulation (40).
EP81102025A 1980-03-18 1981-03-18 Machine à laver, en particulier la vaisselle Expired EP0036217B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3010331 1980-03-18
DE19803010331 DE3010331A1 (de) 1980-03-18 1980-03-18 Geschirrspuelmaschine

Publications (2)

Publication Number Publication Date
EP0036217A1 EP0036217A1 (fr) 1981-09-23
EP0036217B1 true EP0036217B1 (fr) 1983-12-28

Family

ID=6097535

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81102025A Expired EP0036217B1 (fr) 1980-03-18 1981-03-18 Machine à laver, en particulier la vaisselle

Country Status (2)

Country Link
EP (1) EP0036217B1 (fr)
DE (2) DE3010331A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3209250C2 (de) * 1982-03-13 1986-01-23 Deutsche Gesellschaft für Wiederaufarbeitung von Kernbrennstoffen mbH, 3000 Hannover Verfahren und Einrichtung zur Reinigung des Ofenabgases einer Verglasungsanlage
DE3707366A1 (de) * 1987-03-07 1988-09-15 Diversey Gmbh Verfahren zur kontinuierlichen oder diskontinuierlichen maschinellen reinigung von gebrauchsgeschirr
DE3922067A1 (de) * 1989-07-05 1991-01-17 Henkel Kgaa Verfahren zum spuelen von gebrauchsgeschirr und geschirrspuelmaschine zum durchfuehren des verfahrens
WO1994010895A1 (fr) * 1992-11-16 1994-05-26 Winterhalter Gastronom Gmbh Lave-vaisselle
ITMI20042215A1 (it) * 2004-11-18 2005-02-18 Comenda Ali S P A Macchina e procedimento lavastoviglie

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR911212A (fr) * 1944-06-01 1946-07-02 Bolinders Fabriks Aktiebolag Machine à laver la vaisselle pour hôtels, restaurants, etc.
CH263607A (de) * 1945-09-04 1949-09-15 Ingeniorsfirman Adolph Von Bro Geschirrwaschmaschine.
US3076730A (en) * 1961-08-15 1963-02-05 Metalwash Machinery Corp Method of and apparatus for rinsing and drying metal pans
GB988110A (en) * 1963-03-29 1965-04-07 Lyons & Co Ltd J Improvements in and relating to the washing of culinary and like articles

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2311987A1 (de) * 1973-03-10 1974-09-12 Bosch Siemens Hausgeraete Geschirrspuelmaschine mit einem programmsteuergeraet

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR911212A (fr) * 1944-06-01 1946-07-02 Bolinders Fabriks Aktiebolag Machine à laver la vaisselle pour hôtels, restaurants, etc.
CH263607A (de) * 1945-09-04 1949-09-15 Ingeniorsfirman Adolph Von Bro Geschirrwaschmaschine.
US3076730A (en) * 1961-08-15 1963-02-05 Metalwash Machinery Corp Method of and apparatus for rinsing and drying metal pans
GB988110A (en) * 1963-03-29 1965-04-07 Lyons & Co Ltd J Improvements in and relating to the washing of culinary and like articles

Also Published As

Publication number Publication date
DE3161744D1 (en) 1984-02-02
EP0036217A1 (fr) 1981-09-23
DE3010331A1 (de) 1981-10-01

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