EP1707100B1 - Lave-vaisselle à convoyeur et tube de pulvérisation associé - Google Patents

Lave-vaisselle à convoyeur et tube de pulvérisation associé Download PDF

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Publication number
EP1707100B1
EP1707100B1 EP06001167A EP06001167A EP1707100B1 EP 1707100 B1 EP1707100 B1 EP 1707100B1 EP 06001167 A EP06001167 A EP 06001167A EP 06001167 A EP06001167 A EP 06001167A EP 1707100 B1 EP1707100 B1 EP 1707100B1
Authority
EP
European Patent Office
Prior art keywords
nozzle
spray
nozzles
spray pipe
inlet
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.)
Ceased
Application number
EP06001167A
Other languages
German (de)
English (en)
Other versions
EP1707100A3 (fr
EP1707100A2 (fr
Inventor
Gerhard Frei
Harald Disch
Werner Neumaier
Jürgen Litterst
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.)
Premark FEG LLC
Original Assignee
Premark FEG LLC
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 Premark FEG LLC filed Critical Premark FEG LLC
Publication of EP1707100A2 publication Critical patent/EP1707100A2/fr
Publication of EP1707100A3 publication Critical patent/EP1707100A3/fr
Application granted granted Critical
Publication of EP1707100B1 publication Critical patent/EP1707100B1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • 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
    • A47L15/14—Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber
    • A47L15/16—Washing or rinsing machines for crockery or tableware with stationary crockery baskets and spraying devices within the cleaning chamber with rigidly-mounted spraying devices
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening
    • B05B1/20—Perforated pipes or troughs, e.g. spray booms; Outlet elements therefor

Definitions

  • the invention relates to a spray tube for transport dishwashers according to the preamble of claim 1 and a transport dishwasher, which has at least one such spray tube in at least one spray zone.
  • US 4,735,222 and GB 2 019 204 A disclose spray gates of this type.
  • Transport spray dishwashers having spray pipes for spraying cleaning liquid in a cleaning spray zone and for spraying rinse liquid in a rinse spray zone are known from US 5,156,237 US 4,735,222 known.
  • Conveyor ware washers may be rack conveyor ware washers or flight-type goods washers.
  • the spray pipes can be stationary or movable, for example rotatable, positioned.
  • a liquid supply to another part length of the spray tube is possible.
  • the invention aims to achieve a more uniform distribution of liquid before or at the latest when the sprays strike the sprayed material.
  • FIG. 1 shown spray tube 2 according to the invention of a transport dishwasher for spraying dishes (plates, trays, dishes, cups, glasses, etc.) with liquid containing a plurality of nozzles 4, 6, 8, 10, which are arranged one behind the other in the tube longitudinal direction.
  • the spray tube 2 has an inlet 12, from which liquid can flow in the tube longitudinal direction to the nozzles 4, 6, 8 and 10, and a closed tube end 13. This direction from the inlet 12 to the nozzles 4, 6, 8 and 10 is hereinafter designated as liquid supply direction 24.
  • the nozzle opening 5 of at least the nozzle 12 closest to the inlet 12, preferably of two or more consecutive to the inlet 12 Next nozzles, has an outlet direction 14, which is inclined obliquely opposite to the liquid supply direction seen from the inlet 12 to the nozzles 4, 6, 8, 10 at an inclination angle ⁇ , eg ⁇ 1, ⁇ 2, ⁇ 3.
  • the angle ⁇ is defined between the outlet direction 14 of the nozzle opening 5 and a theoretical transverse plane 22 which extends at right angles to the liquid feed direction 24.
  • Fig. 1 shows an embodiment in which the first three nozzle openings 5, 7 and 9 following the inlet 12 have an outlet direction 14, 16 and 18, respectively, which is inclined obliquely opposite the liquid supply direction 24 at an angle ⁇ 1 or ⁇ 2 or ⁇ 3.
  • These three inclined nozzle openings may all have a same inclination angle, but the inclination angle according to the preferred embodiment of the invention in the liquid supply direction 24 decreases from nozzle to nozzle, so that the inclination angle ⁇ 1 of the first nozzle opening 5 is greatest, for example between 8 ° and 16 ° is; the inclination angle ⁇ 2 of the second nozzle opening 7 is smaller and is preferably between 3 ° and 10 °; and the inclination angle ⁇ 3 of the third nozzle opening 9 is again smaller and is for example between 0 ° and 5 °.
  • the nozzle openings following in the liquid feed direction preferably all have an outlet direction 20 at right angles to the liquid feed direction 24, so that here the angle of inclination ⁇ 4 lies at 0
  • the liquid feed direction 24 extends parallel to the axial pipe center line 26 of the spray tube 2.
  • the spray tube can have over its entire length a constant inner cross section or a changing inner cross section.
  • the spray tube 2 may have a circular tube cross-section or a cross-sectional shape deviating from the circular shape.
  • the nozzle openings 5, 7, 9 and 11 may each have a circular opening cross-section or an opening cross-section deviating from the circular shape, for example a slot.
  • the nozzle openings of the nozzles 4, 6, 8 and 10 can be used in the spray tube 2 nozzle elements with nozzle openings formed in them or accordingly Fig. 1 be formed in the spray tube 2 holes.
  • the nozzles 4, 6, 8, 10 and thus also their nozzle openings 5, 7, 9 and 11 are preferably arranged in depressions 30 of the outer surface of the spray tube 2.
  • the nozzle openings 11 of the nozzles 10, which are arranged perpendicular to the liquid supply direction 24, are preferably at the lowest point of the recess 30.
  • the recesses 30 are preferably concave, round or valley-like bulges in the pipe wall.
  • the opening area of the nozzle opening 5, 7, 9, 11 of the nozzle or of several nozzles 4, 6, 8, 10 is closer to the inlet 12 is or is greater than that at or at the inlet 12 farther away from the nozzle or nozzles.
  • the first nozzle 4 has the largest opening cross-section
  • the second nozzle 6 a second largest smaller opening cross-section
  • the third nozzle 8 a third largest smaller opening cross-section, etc.
  • a group of two or more nozzles, which is closer to the inlet 12 have a larger opening cross-section than the following in the liquid supply direction 24 nozzle or following group of nozzles.
  • the principle is to have starting from the inlet 12 gradually smaller opening cross-sections of the nozzles, at least in the initial section of the nozzle row.
  • Fig. 2 shows a spray tube 42 according to the invention, in which the nozzle openings 5 ', 7', 9 ', 11' of the nozzles 4 ', 6', 8 ', 10' are elongated holes, which in the central region 44 of its longitudinal extent preferably on both sides equal big constriction where the nozzle opening has a smaller width than in each of the two adjacent end portions 46 and 48.
  • the elongated holes 5 ', 7', 9 ', 11' of the nozzles 4 ', 6', 8 ', 10' each have a length 50, a width 52 in the end regions and a constriction width 56 in the central slot area.
  • the slot of the first nozzle opening 5 ' for example, a length of 12 mm, a width in the end portions 52 of 4 mm, and a Einschnürungsweite 56, for example, 3 mm.
  • the second slot 7 'in the liquid feed direction 24 has, for example, a slot length 50 of 12 mm, a hole width in the end areas 52 of 4 mm and a constriction width in the central area 56 of 2.5 mm.
  • the third slot 9 'of the third nozzles 8' in the liquid feed direction 24 has, for example, a slot length 50 of 10 mm, a slot width in the two end areas 52 of 4 mm each and a constriction width in the central area 56 of, for example, 2.5 mm.
  • the following slot of the nozzle opening 11 'of the nozzle 10' has the same dimensions as the previous nozzle opening 9 '.
  • the following slots of nozzle openings for example, have a slot length 50 of 10 mm, a slot width in the end portions 52 of 4 mm, and a constriction width in the central region 56 of, for example, 2 mm.
  • Fig. 3 shows a further preferred embodiment of a nozzle tube 57 of the invention, according to which the longitudinal axis 58 of the slots of Fig. 2 seen in tube side view relative to the axial tube center line 26 not as in Fig. 2 an angle of 90 °, but a smaller angle ⁇ , for example in the range between 85 ° and 50 °, more preferably between 65 ° and 75 °.
  • the spray fan sprayed from them rotates about 90 ° relative to the slot axis 58 about the spray beam centerline.
  • Fig. 4 shows schematically in longitudinal section a conveyor dishwasher according to the invention, in which a group of several upper spray tubes 2 or 42 or 57 are arranged according to the invention with their nozzles directed downwards and a lower group of spray tubes 2 or 42 or 57 according to the invention with their Nozzles are arranged directed upward.
  • the washware 60 is transported by a transport device 62 in the transport direction 64 through the conveyor dishwasher 59.
  • the spray zone 66 shown may be a rotatessprühzone for cleaning items to be washed or a rinse zone for rinsing dishes.
  • nozzles 4 to 10 and their nozzle openings 6 to 11 and the above-described nozzles 4 'to 10' and their nozzle openings 5 'to 11' are respectively provided with the reference numeral 72 in summary.
  • the spray pipes 2 are arranged transversely to the transport direction 64 of the washware 60 in a spray zone 66.
  • the nozzle openings 72 are directed obliquely forward in the transport direction 64, unlike the vertical direction 76, as schematically illustrated by an arrow 78.
  • the nozzle openings 72 deviate from the vertical direction 76 are directed counter to the transport direction 64 obliquely backwards, as schematically represented by an arrow 80.
  • Fig. 4 shows an embodiment in which the Nozzle openings 72 of the intermediate spray pipes 2 (or 42 or 57) arranged between the outer upper flush pipes are aligned in the vertical direction 76.
  • the spray tubes 2 (or 42 or 57) of the lower spray tubes may all be correspondingly Fig. 4 be vertically aligned or their first spray tube and their last spray tube may be slightly rotated according to the upper spray tube group, so that their nozzle openings 72 are directed obliquely to the vertical direction 76 toward the center of the spray zone 66, similar to the arrows 78 and 80 of the front and rear upper spray pipes.
  • Fig. 5 schematically shows an end view of the transport dishwasher of Fig. 4 in which liquid is conveyed from a tank 82 by means of a pump 84 to the spray pipes 2 (or 42 or 57).

Landscapes

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

Claims (11)

  1. Tube de pulvérisation (2 ; 42 ; 57) d'un lave-vaisselle à convoyeur, pour pulvériser du produit à laver avec un liquide, contenant une pluralité de buses (4, 6, 8, 10 ; 4', 6', 8', 10' ; 72), qui sont disposées les unes derrière les autres dans la direction longitudinale du tube, et une entrée (12), de laquelle du liquide peut s'écouler dans la direction longitudinale du tube vers les buses, caractérisé en ce qu'au moins lorsque deux buses se suivent dans la direction d'alimentation du liquide (24), la buse la plus proche de l'entrée (12) a une ouverture de buse de plus grande section transversale d'ouverture que la buse adjacente, plus éloignée de l'entrée (12).
  2. Tube de pulvérisation selon la revendication 1, caractérisé en ce que l'ouverture de buse (5, 7, 9, 11 ; 5', 7', 9', 11') d'au moins la buse (4 ; 4' ; 72) placée le plus près de l'entrée, de préférence de deux ou plusieurs buses successives placées le plus près de l'entrée, présente une direction de sortie (14, 16, 18) qui est obliquement opposée à la direction d'alimentation du liquide (24) vue depuis l'entrée (12) vers les buses, suivant un angle d'inclinaison (α), l'angle d'inclinaison (α) étant défini entre la direction de sortie (14, 16, 18) de l'ouverture de buse et un plan transversal théorique (22) qui s'étend à angle droit par rapport à la direction d'alimentation de liquide (24).
  3. Tube de pulvérisation selon la revendication 2, caractérisé en ce que les ouvertures de buse d'au moins deux buses successives sont inclinées suivant une orientation obliquement opposée à la direction d'alimentation du liquide (24), l'angle d'inclinaison (α) des buses suivantes étant inférieur à l'angle d'inclinaison des buses précédentes.
  4. Tube de pulvérisation selon l'une quelconque des revendications précédentes 2 ou 3, caractérisé en ce que dans la direction d'alimentation du liquide (24), l'au moins une buse (4, 6, 8 ; 4', 6', 8'), qui présente une ouverture de buse inclinée, est suivie d'au moins une ou de préférence de plusieurs buses (10 ; 10') dont les ouvertures de buse (11 ; 11') ne sont pas inclinées, mais qui s'étendent à angle droit par rapport à la direction d'alimentation du fluide (24).
  5. Tube de pulvérisation selon l'une quelconque des revendications précédentes 2 à 4, caractérisé en ce que les buses, au moins les buses avec une ouverture de buse inclinée, sont disposées dans un renfoncement (30) de la surface extérieure du tube de pulvérisation.
  6. Tube de pulvérisation selon l'une quelconque des revendications précédentes, caractérisé en ce que les ouvertures de buse (5', 7', 9', 11') sont des trous oblongs.
  7. Tube de pulvérisation selon la revendication 6, caractérisé en ce que l'axe longitudinal (58) des trous oblongs, vu de dessus sur le tube de pulvérisation, forme avec l'axe médian axial du tube (26) un angle qui vaut 90°, de préférence qui est inférieur à 90°, de préférence qui est compris entre 80° et 50°, et plus préférablement qui est compris entre 75° et 65°.
  8. Tube de pulvérisation selon la revendication 6 ou 7, caractérisé en ce que les trous oblongs présentent, dans la région centrale de leur étendue longitudinale, un étranglement (44) où l'ouverture de buse a une plus petite largeur que dans chacune des régions d'extrémité adjacentes (46, 48).
  9. Lave-vaisselle à convoyeur, caractérisé par au moins un tube de pulvérisation (2 ; 42 ; 57) selon au moins l'une quelconque des revendications précédentes dans une zone de pulvérisation (66), de préférence dans une zone de lavage, pour pulvériser du liquide sur le produit à laver.
  10. Lave-vaisselle à convoyeur, dans lequel, dans au moins une zone de pulvérisation (66), sont disposés plusieurs tubes de pulvérisation supérieurs et/ou inférieurs (2 ; 42 ; 57), transversalement à la direction de transport de la vaisselle (64), au moins l'un de ces tubes de pulvérisation étant réalisé selon au moins l'une quelconque des revendications précédentes 1 à 8, caractérisé en ce que dans le cas du premier tube de pulvérisation supérieur et/ou inférieur (2 ; 42 ; 57) de la zone de pulvérisation (66) dans la direction de transport de la vaisselle, les ouvertures de buse (72) sont inclinées obliquement vers l'avant en s'écartant de la verticale (76) dans la direction de transport de la vaisselle (64) et/ou dans le cas du dernier tube de pulvérisation supérieur et/ou inférieur (2 ; 42 ; 57) de la zone de pulvérisation (66) dans la direction de transport de la vaisselle (64), les ouvertures de buse (72) sont inclinées obliquement vers l'arrière en s'écartant de la verticale (76) à l'opposé de la direction de transport de la vaisselle (64).
  11. Lave-vaisselle à convoyeur selon la revendication 10, caractérisé en ce qu'entre les premiers et derniers tubes de pulvérisation supérieurs et/ou inférieurs, on dispose d'autres tubes de pulvérisation dans lesquels les ouvertures de buses (72) sont orientées verticalement.
EP06001167A 2005-04-02 2006-01-20 Lave-vaisselle à convoyeur et tube de pulvérisation associé Ceased EP1707100B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005015156A DE102005015156A1 (de) 2005-04-02 2005-04-02 Transportgeschirrspülmaschine und Sprührohr dafür

Publications (3)

Publication Number Publication Date
EP1707100A2 EP1707100A2 (fr) 2006-10-04
EP1707100A3 EP1707100A3 (fr) 2007-08-29
EP1707100B1 true EP1707100B1 (fr) 2009-09-30

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP06001167A Ceased EP1707100B1 (fr) 2005-04-02 2006-01-20 Lave-vaisselle à convoyeur et tube de pulvérisation associé

Country Status (6)

Country Link
US (1) US7621286B2 (fr)
EP (1) EP1707100B1 (fr)
CN (1) CN1839747B (fr)
BR (1) BRPI0601109A (fr)
CA (1) CA2537543C (fr)
DE (2) DE102005015156A1 (fr)

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Also Published As

Publication number Publication date
CN1839747A (zh) 2006-10-04
US7621286B2 (en) 2009-11-24
CA2537543C (fr) 2009-12-01
BRPI0601109A (pt) 2006-12-05
US20060219820A1 (en) 2006-10-05
CN1839747B (zh) 2010-05-12
EP1707100A3 (fr) 2007-08-29
CA2537543A1 (fr) 2006-10-02
DE502006004954D1 (de) 2009-11-12
EP1707100A2 (fr) 2006-10-04
DE102005015156A1 (de) 2006-10-05

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