EP0733588A1 - Chambre de mélange pour la préparation de boissons du type post-mix - Google Patents

Chambre de mélange pour la préparation de boissons du type post-mix Download PDF

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Publication number
EP0733588A1
EP0733588A1 EP96890051A EP96890051A EP0733588A1 EP 0733588 A1 EP0733588 A1 EP 0733588A1 EP 96890051 A EP96890051 A EP 96890051A EP 96890051 A EP96890051 A EP 96890051A EP 0733588 A1 EP0733588 A1 EP 0733588A1
Authority
EP
European Patent Office
Prior art keywords
mixing chamber
water
inlet
outlet
syrup
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.)
Withdrawn
Application number
EP96890051A
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German (de)
English (en)
Inventor
Karl Heinz Schubert
Helmut Preisenschuh
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0733588A1 publication Critical patent/EP0733588A1/fr
Withdrawn legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D1/00—Apparatus or devices for dispensing beverages on draught
    • B67D1/0042—Details of specific parts of the dispensers
    • B67D1/0043—Mixing devices for liquids
    • B67D1/0044—Mixing devices for liquids for mixing inside the dispensing nozzle
    • B67D1/0046—Mixing chambers
    • B67D1/005—Mixing chambers with means for converging streams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D1/00—Apparatus or devices for dispensing beverages on draught
    • B67D1/0042—Details of specific parts of the dispensers
    • B67D1/0043—Mixing devices for liquids
    • B67D1/0044—Mixing devices for liquids for mixing inside the dispensing nozzle

Definitions

  • the invention relates to a mixing chamber for the production of post-mix drinks consisting of a housing block which is tightly sealed by means of a cover plate, into which an inlet for carbonated water and at least one inlet for concentrate or syrup opens and which has an outlet for the mixed product.
  • lemonade syrup is mixed with soda water in that the syrup located in a pressure tank, which is charged with a gas, primarily CO 2 , is metered in simultaneously flowing soda water when a valve arranged in a mixing head, a so-called post-mix head, is opened.
  • the syrup is usually added using an adjusting screw.
  • the syrup is transported from the supply containers by means of pumps operated with gas pressure, the metering accuracy in each case leaving something to be desired. By using electrically operated pumps, syrup metering can be better controlled.
  • the merging of the beverage components begins during the passage through the post-mix head at the end point of the beverage dispensing system in such a way that the two components emerge side by side and simultaneously, but also alternately in succession.
  • the components are only mixed in the drinking vessel, resulting in zones of different degrees of mixing. Streaking always occurs or the upper part of the drink in the drinking vessel is thinner than that on the bottom of the same.
  • GB 2 048 826 A also discloses a dispensing head for a beverage dispenser, which dispensing head is provided with adjustable control devices for metering concentrate or syrup and carbonated water for the preparation of beverages.
  • the tap head in the area of the passage of the carbonated water through it also has devices for reducing the flow rate of the water without changing the amount of water discharged.
  • the line for the concentrate opens into the outlet of the dispensing head, so that the concentrate escaping through openings is actually only combined with the carbonated water in the outlet. Mixing of the concentrate with the carbonated water thus takes place in the outflow area of the dispensing head and essentially only in the beaker or glass.
  • An inhomogeneous product is obtained, which is shown by the formation of streaks in the beaker or glass or, if the viscosity of the media varies greatly, even by the appearance of a sediment of the syrup and clear liquid overlying it.
  • a mixing device in an automatic beverage dispenser which has an inclined, open mixing channel, at the higher end of which carbonated water is introduced in a pressure-relieved manner via an inlet and whose lower end opens into an outlet.
  • Syrup containers are arranged above the mixing trough, from which syrup is dripped into the water stream flowing in the trough.
  • the mixing channel which is protected by a protective hood, is connected to the ambient atmosphere.
  • the object of the invention is now to create a mixing chamber for the production of in particular highly carbonated beverages, preferably post-mix beverages, by means of which mixing chamber the above-mentioned adverse effects on the quality of the beverage to be produced can be avoided.
  • the media to be mixed are mixed with one another so thoroughly, even with very different viscosities, that a truly homogeneous end product is formed which no longer has any different density zones, for example streaks or sediment, when it flows into the drinking vessel.
  • the release of carbonic acid during the mixing process of the two beverage components should also be kept as low as possible, for which purpose an exact coordination of the flow rate, carbonic acid doping and combination of the mixed media is also necessary.
  • This also includes determining a particularly streamlined shape Prerequisite for the mixing section, whereby the media to be metered, for example lemonade syrup, must be metered in at the point of the mixing section which is also precisely determined.
  • the cross section of the closed mixing chamber increases steadily from the inlet of the water to the outlet of the mixed product, the cross section of the mixing chamber being understood to mean the cross-sectional area of the mixing chamber filled by the liquid stream, normal to the flow lines.
  • the mixing chamber has boundary walls which are smooth and free of edges, areas of different cross-sectional shapes of the mixing chamber flowing into one another.
  • the principle of the mixing chamber can be in the form of a channel which widens from the inlet of the water in the direction of the outlet of the mixed product and which, in plan view, is circular, conical, drop-shaped, elliptical, serpentine or approximately L-shaped can.
  • the cross section of the closed mixing chamber in the area of the feed of the concentrate or syrup is 1.15 to 1.25 times, preferably 1.2 times, and in the area of the outlet of the mixed product 1.3 to 1.6 times, preferably 1.4 times the cross section in the area of the water inlet.
  • This shape of the mixing section creates optimal mixing conditions in a structurally very simple and inexpensive manner, in particular for the production of post-mix drinks, the mixing chamber being easily produced without substantial post-processing as in a producible housing block which is only to be provided with a cover plate closing the mixing chamber can.
  • such a design of the mixing chamber allows cleaning in a particularly simple and effective manner by means of an ultrasound transmitter that is directly connected to it.
  • the outlet opens into the mixing chamber in the shape of a funnel, a tube adjoining the outlet preferably forming a siphon or a valve being arranged in the tube.
  • the water inlet and the inlet for concentrate or syrup open into the closed mixing chamber at an oblique angle towards the outlet. This also reliably prevents undesirable turbulence from occurring.
  • the different types of drinking products require different carbonation of the water.
  • This different doping is preferably achieved when the mixing chamber according to the invention is used in that the soda water supplied by a carbonation device is mixed with the physically or technically highest possible amount of carbonic acid.
  • This strong soda water is blended with still water during the mixing process so that the desired doping is achieved in the finished drink.
  • This is done by means of electrically, mechanically or preferably electronically controlled valves, which are controlled by means of a computer program so that still water and soda water in the Supply lines in appropriate proportions to the mixing section is led.
  • the programming of the computer can be done either manually using input keys or via a data carrier (eg magnet, chip, optical, electronic or mechanical, disc, tape or card, etc.). When entering data on a data carrier, this information can be coupled with the exact mixing setting for the syrup doping and the doping with still water and soda water, so that the ideal composition and desired quality is achieved for each drink.
  • a data carrier eg magnet, chip, optical, electronic or mechanical, disc
  • FIG. 1 a top view with the cover plate lifted off
  • FIG. 2 a side view, partly in section
  • FIG. 3a a section along the line AA of FIG. 1
  • 3b shows a section along the line BB in FIG. 1
  • FIG. 3c shows a section along the line CC in FIG. 1 of a first embodiment of the mixing chamber according to the invention
  • FIG. 4 shows a plan view with the cover plate lifted off
  • FIG. 5 shows a Side view, partly in section
  • FIG. 6a shows a section along the line AA of FIG. 4
  • FIG. 6b shows a section along the line BB of FIG. 4
  • FIG. 6c shows a section along the line CC of FIG. 4 of a second Show embodiment of the mixing chamber according to the invention.
  • a mixing chamber 1 is formed in a flat housing block 2, which can be made of plastic, ceramic, glass or metal, on a flat side.
  • the mixing chamber 1 can be closed with a cover plate 3, which is detachably connected to the housing block 2, preferably by means of screws engaging in corresponding holes 4 provided in the housing block 2.
  • a circumferential groove 5 is provided, into which an O-ring seal is inserted, so that the mixing chamber 1 can be sealed with the cover plate 3.
  • the cover plate 3 is in an ultrasound source Active connection, wherein an ultrasonic transmitter 14 is preferably arranged directly on the outside of the cover plate 3.
  • cover plate 3 and housing block 2 by means of the O-ring seal enables the ultrasonic wave to vibrate freely, which is thereby transferred directly to the liquid in the mixing chamber and the connected inlets and outlets, and thus appropriate ultrasonic cleaning as well as complete destruction germs that may have colonized occur in all of these areas.
  • the top view of the mixing chamber 1 which is elliptical in plan view, comprises on the one side an inlet 6 for the carbonated water and on the other side an outlet 7 for the mixed product.
  • Two inlets 8 for concentrate or syrup are arranged between inlet 6 and outlet 7, an island-like elevation 9, which divides the liquid flow in the mixing section, is provided between the two inlets 8.
  • the two inlets 8 for concentrate or syrup are arranged approximately one behind the other, the mixing chamber 1 here being L-shaped in plan view.
  • the mixing chamber 1 assumes a cross-section 10 in the area of the sections shown in FIGS. 3a and 6a along the line AA in FIGS. 1 and 4, and has in the area of the sections shown in FIGS. 3b and 6b along the line BB in FIG 1 and 4 a cross section 11 enlarged by 1.15 to 1.25 times, preferably 1.2 times, and in the region of the sections shown in FIGS. 3c and 6c along the line CC of FIGS. 1 and 4 a cross section 12 enlarged by 1.3 to 1.6 times, preferably 1.4 times.
  • the boundary walls of the mixing chamber 1 have a very smooth surface, free of angular projections and elevations or bends, so that a smooth flow through the mixing section is ensured without turbulence in the liquid flow at rough locations or unevenness of the mixing chamber walls.
  • a special feature of the mixing chamber 1 is also that individual areas of different cross-sectional shapes of the mixing chamber merge smoothly into one another without sharp edges or sudden transitions from narrower to further cross sections or vice versa. From these points of view, the mixing chamber 1 is essentially designed according to the principle of a channel widening from the inlet 6 of the water to the outlet 7 of the mixing chamber. Seen in plan view, the mixing chamber can be circular, conical, drop-shaped, elliptical, snake-shaped or approximately L-shaped.
  • the mixing section in the mixing chamber 1 begins at a narrow point, the pressure of the soda water, which may be appropriately blended with still water, is fed into the mixing section via an inlet valve (not shown) via the inlet 6, and expands continuously both in terms of area and optionally in depth up to the preferably funnel-shaped outlet 7, which is arranged in the last third of the mixing section.
  • the at least one inlet 8 for concentrate or syrup opens into the mixing section of the mixing chamber 1 at an oblique angle towards the outlet 7.
  • the inlet 6 for the water also opens into the mixing chamber 1 in the same way as the syrup inlet 8, pointing obliquely in the direction of flow.
  • a tube 13 Connected to the outlet 7 for the mixed product is a tube 13, which (not shown) preferably forms a siphon or in which a valve is arranged, so that there is in the mixing chamber 1, which in practice is in a system or a machine for the production of Postmx drinks are preferably arranged vertically until there is always liquid up to the outlet.

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  • Devices For Dispensing Beverages (AREA)
EP96890051A 1995-03-22 1996-03-20 Chambre de mélange pour la préparation de boissons du type post-mix Withdrawn EP0733588A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT50695 1995-03-22
AT506/95 1995-03-22

Publications (1)

Publication Number Publication Date
EP0733588A1 true EP0733588A1 (fr) 1996-09-25

Family

ID=3492419

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96890051A Withdrawn EP0733588A1 (fr) 1995-03-22 1996-03-20 Chambre de mélange pour la préparation de boissons du type post-mix

Country Status (1)

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EP (1) EP0733588A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3359996A (en) * 1965-07-19 1967-12-26 Cornelius Co Post-mix valve
DE2556067B2 (de) 1975-03-21 1979-12-06 Dagma Deutsche Automaten- Und Getraenkemaschinen Gmbh & Co Kg, 2067 Reinfeld Mischeinrichtung in einem Getränkeausgabegerät und Verfahren bei der Verwendung dieser Mischeinrichtung
GB2048826A (en) 1979-04-11 1980-12-17 Alco Foodservice Equip Dispensing head
GB2116058A (en) * 1982-02-02 1983-09-21 Booth Dispensers Mixing drinks

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3359996A (en) * 1965-07-19 1967-12-26 Cornelius Co Post-mix valve
DE2556067B2 (de) 1975-03-21 1979-12-06 Dagma Deutsche Automaten- Und Getraenkemaschinen Gmbh & Co Kg, 2067 Reinfeld Mischeinrichtung in einem Getränkeausgabegerät und Verfahren bei der Verwendung dieser Mischeinrichtung
GB2048826A (en) 1979-04-11 1980-12-17 Alco Foodservice Equip Dispensing head
GB2116058A (en) * 1982-02-02 1983-09-21 Booth Dispensers Mixing drinks

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