EP0548317B1 - Method and device for mixing drink components - Google Patents

Method and device for mixing drink components Download PDF

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Publication number
EP0548317B1
EP0548317B1 EP92914688A EP92914688A EP0548317B1 EP 0548317 B1 EP0548317 B1 EP 0548317B1 EP 92914688 A EP92914688 A EP 92914688A EP 92914688 A EP92914688 A EP 92914688A EP 0548317 B1 EP0548317 B1 EP 0548317B1
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EP
European Patent Office
Prior art keywords
component
measuring
chamber
measuring chamber
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.)
Expired - Lifetime
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EP92914688A
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German (de)
French (fr)
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EP0548317A1 (en
Inventor
Wilhelm Weiss
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Krones AG
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Krones AG
Krones AG Hermann Kronseder Maschinenfabrik
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/40—Mixing liquids with liquids; Emulsifying
    • B01F23/49—Mixing systems, i.e. flow charts or diagrams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/80—Mixing plants; Combinations of mixers
    • B01F33/81—Combinations of similar mixers, e.g. with rotary stirring devices in two or more receptacles
    • B01F33/812—Combinations of similar mixers, e.g. with rotary stirring devices in two or more receptacles in two or more alternative mixing receptacles, e.g. mixing in one receptacle and dispensing from another receptacle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/80—Forming a predetermined ratio of the substances to be mixed
    • B01F35/88—Forming a predetermined ratio of the substances to be mixed by feeding the materials batchwise
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
    • B01F2101/06—Mixing of food ingredients
    • B01F2101/14—Mixing of ingredients for non-alcoholic beverages; Dissolving sugar in water

Definitions

  • the invention relates to a method and a device for mixing beverage components.
  • Such a method and such a device is known from DE-PS 31 32 706.
  • the known device is used to mix a smaller amount of syrup (first component) with a larger amount of water (second component).
  • a separate measuring room is provided for each component.
  • the measuring room for water is equipped with a fill level meter, through which the water volume is metered.
  • the volume of the syrup measuring area corresponds to the volume of syrup required for a batch and is completely filled with every mixing process.
  • the measuring room for syrup is arranged below the measuring room for water and connected to it via a pipe.
  • the measuring chamber with a certain volume for the syrup is combined with the measuring chamber arranged above it with a filling height meter for the water, forming a cross-sectional enlargement which promotes mixing in the transition area to a receiving chamber for a complete mixture quantity.
  • a fixed level probe is arranged in the upper area of the measuring space for the syrup Measuring room defined.
  • syrup is first introduced into the lower measuring room until the fixed level probe is reached.
  • water is also introduced into the lower measuring chamber, mixing with the syrup until a certain amount of mixture, registered by the level gauge, is reached. This amount of mixture is then discharged through a pipeline connected to the underside of the lower measuring chamber and mixed again into a collecting chamber.
  • the invention has for its object to provide a method and a structurally simple device for batch-wise mixing of beverage components, with which even subsets of the first component, the volume of which is smaller than the volume of the measuring space, can be processed efficiently with a consistently high mixing accuracy.
  • the quantity contained in the storage space is independent of the size Remaining amount always an exact adherence to the desired mixing ratio possible. Even small residual amounts of the syrup or the like, which previously could not be processed economically, can therefore be reliably processed without sacrificing beverage quality.
  • the second component can be dosed by the dosing device operating in normal operation. According to a development of the invention contained in the subclaims, however, the measurement of the second component takes place at the same location or with the same device with which the first component is measured during the so-called residual quantity metering. This results in a particularly precise and efficient way of working.
  • FIG. 1 shows the schematic side view of a device for mixing beverage components. This is integrated into a system for producing a carbonated soft drink, which is only partially shown.
  • the device shown is set up for mixing a first component in the form of syrup S and a second component in the form of deaerated water W and has a container-shaped metering and mixing unit 16.
  • a lower measuring chamber 2 with a circular cross-section is set up for the syrup, the volume of which is limited by a fixed level probe 23 at the level of the dash-dotted line.
  • a filling height meter 18 is arranged in the receiving space 17 and registers the height of the mixture G consisting of syrup and water in the metering and mixing unit 16.
  • a feed line 12 for the vented water and two intermediate shut-off valves 26, 27 with a different cross-section lead to an intermediate line 3 for the syrup via two shut-off valves 24, 25 with different cross-sections.
  • the intermediate line 3 is connected to the bottom of a flow container 28 with a storage space 1 for the syrup, which is at a higher level than the measuring space 2.
  • the flow container 28 is equipped with a lower level probe 14 and an upper level probe 22 and is via a syrup line 21 supplied with a control valve 29.
  • the flow tank 28 is connected via a line 20 to a CO2 manifold 37, just like the metering and mixing unit 16 via a line 19th
  • the measuring chamber 2 has, below its level probe 23 which determines the volume, a further level probe 30 for controlling the filling speed.
  • a drain 5 with a shut-off valve 31 is connected to its lowest point, which leads into a tank 32 a collecting space 4 opens out for the mixture.
  • From the tank 32 leads a further line 33 with a pump 34 to a saturation tank, not shown, in which the mixture is impregnated with carbonic acid and to which the CO2 manifold 37 is connected.
  • a few further metering and mixing units are connected to the tank 32 with the collecting space 4 for the mixture, which match the structure of the metering and mixing unit 16 described so far. In this way, the various dosing and mixing units can be filled and emptied alternately and it is possible to feed the collecting space 4 evenly.
  • a secondary line 6 is connected, which opens into the measuring space 2 of the metering and mixing unit 16.
  • a first shut-off valve 7, a pump 10, an empty sensor 11, an inductive flow meter 9 and a second shut-off valve 8 are connected in sequence, the latter and the flow meter 9 being located near the junction of the secondary line 6 into the measuring space 2.
  • the feed line 12 for deaerated water is connected to the secondary line 6 via a further shut-off valve 13.
  • the empty signal probe 11, the flow meter 9 and the lower fill level probe 14 in the flow tank 28 are connected to the input side of a control device 15 via signal lines indicated by dash-dotted lines.
  • the level probe 14 is arranged such that it has a signal generated when the remaining amount of syrup in the storage room 1 is smaller than the volume of the measuring room 2 to the upper level probe 23.
  • the empty sensor 11 is designed such that it generates a signal when the secondary line 6 is empty at this point, so neither syrup still contains water.
  • the three shut-off valves 7, 8, 13 and the pump 10 are connected to the output side of the control device 15 via control lines indicated by dashed lines.
  • the control device 15 has an actuator 35 with which the mixing ratio between the two components can be set.
  • the storage space 1 in the flow container 28 is kept largely filled with the aid of the upper level probe 22 and the control valve 29 via the syrup line 21, which leads to a storage tank (not shown).
  • the amount of syrup in the storage room 1 is then large enough to fill the measuring room 2 several times with syrup.
  • the mixing of the two components S and W takes place without the cooperation of the control device 15 - with the shut-off valves 7, 8, 13 and the pump 10 switched off - according to the following procedure:
  • the shut-off valve 31 when the shut-off valve 31 is closed, the syrup is introduced into the measuring chamber 2 at high speed from the supply tank 28 via the intermediate line 3 and the open shut-off valve 26 with a larger cross section, until the lower fill level probe 30 is reached. Then the valve 26 is closed again and the previously closed shut-off valve 27 opened with a smaller cross section. The syrup now flows with smaller Speed into the measuring room 2 until it reaches the upper level probe 23. The shut-off valve 27 is then also closed. The measuring room 2 is now completely filled with syrup up to its predetermined volume.
  • the shut-off valve 24, which has been closed until now, is opened with a larger cross section, so that deaerated water flows into the measuring chamber 2 at high speed via a pump (not shown) and the feed line 12.
  • the water mixes with the syrup and the mixture rises in the receiving space 17 up to a certain fill level, registered by the fill level meter 18.
  • the shut-off valve 24 is closed again and the shut-off valve 25 with a smaller cross section, which has been closed up to now, is opened.
  • the water is introduced into the measuring space 2 at a low speed, namely until a predetermined fill level of mixture in the receiving space 17 is reached, which in turn is registered by the fill-level meter 18.
  • the control of the water supply can of course also be taken over by several fixed fill level probes.
  • the predetermined fill level in the receiving space 17 which is dependent on the desired mixing ratio between syrup and water, is reached, the metering of syrup and water has ended and the two components have already been mixed for the first time.
  • the complete mixture batch is now introduced via the discharge line 5 into the collecting space 4 of the tank 32 and thereby further mixed.
  • the resulting mixture in the collecting space 4 is then transported via the line 33 and the pump 34 to the impregnation container, not shown, where it is carbonated and is then ready for filling.
  • the level in the flow container 28 gradually drops, at some point to below the lower level probe 14.
  • the remaining amount of syrup in the storage room 1 is no longer sufficient for a complete filling of the Measuring room 2 from.
  • the level probe 14 emits a corresponding signal and activates the control device 15.
  • the control (not shown) for the normal mixing process described above is switched off, either manually, on the basis of a signal triggered by the level probe 14, or automatically by the control device 15.
  • the shut-off valves 24 to 27 and the shut-off valve 31 are closed. Influenced by the control device 15, the mixing of the two components now takes place in accordance with the method described below:
  • shut-off valves 7 and 8 are opened; the pump 10 is switched on and the flow meter 9 is activated; the shut-off valve 13 initially remains closed. Then the remaining or partial amount of the syrup present in the storage room 1 and in the intermediate line 3 is almost completely fed into the measuring room 2 via the secondary line 6 initiated until the secondary line 6 has run empty as far as the empty signal probe 11 and this emits a control signal. Then the two valves 7 and 8, or at least the valve 7, are closed and the amount of syrup registered by the flow meter 9 is displayed and reported to the control device 15. This calculates the required amount of water from the measured amount of syrup and the set mixing ratio.
  • This flow rate is now given to the flow meter 9 and water is introduced into the measuring chamber 2 via the secondary line 6 by opening the valves 13 and possibly 8 water from the feed line 12.
  • the shut-off valves 8 and 13 are immediately closed and the pump 10 is switched off.
  • the metering and mixing unit 16 now contains the partial amount of a normal, complete batch with the same mixing ratio of the two components.
  • This partial batch is then introduced into the collecting space 4 in the usual way by opening the shut-off valve 31 via the discharge line 5.
  • the remaining amount of water in the secondary line 6 can be drained by opening a drain valve 36 between the shut-off valve 7 and the pump 10.
  • the above-described method can also be carried out if there is sufficient syrup for a complete batch, for other reasons, for example because only a certain number of bottles have to be filled, but only a partial batch is to be mixed. In this case, the change is made manually and not automatically the level probe 14. With the aid of the flow meter 9, a simple, exact “calibration" of the level probes 23, 30 and the level gauge 18 is also possible.
  • the implementation of the method according to the invention has been described in connection with a device in which the measuring space for the syrup is connected to the measuring space for the water or for the mixture arranged above it via a transition region with an increasing cross section.
  • a device in which these two measuring rooms are connected via a line with a shut-off valve there are two options: If the shut-off valve is open during dosing, the process proceeds in the manner already described, since then the mixture from the lower one Measuring room for the syrup can climb into the upper measuring room. If, on the other hand, the shut-off valve is closed, the water after the partial filling of the lower measuring space with syrup into the upper measuring space for the water is measured separately, e.g. by the already existing level meter for normal operation or by the flow meter for the syrup. For this purpose, another line with a shut-off valve is connected behind the flow meter to the secondary line, which opens directly into the upper measuring chamber for the water.

Abstract

The invention concerns a method for mixing drink components, in particular syrup and water, in which the first component is fed from a reservoir into a metering chamber with a given volume, the amount of the second component required to give the desired concentration measured out, and both components fed into a storage tank. If the reservoir contains an insufficient supply of the first component, the metering chamber is only partly filled with the first component, the amount of the first component introduced into the metering chamber measured and a corresponding amount of the second component measured out. This enables even small amounts of syrup left in the reservoir to be used up, while continuing to produce a drink of the same concentration.

Description

Die Erfindung betrifft ein Verfahren und eine Vorrichtung zum Mischen von Getränkekomponenten.The invention relates to a method and a device for mixing beverage components.

Ein derartiges Verfahren und eine derartige Vorrichtung ist aus der DE-PS 31 32 706 bekannt. Die bekannte Vorrichtung dient zum Mischen von einer kleineren Menge Sirup (erste Komponente) mit einer größeren Menge Wasser (zweite Komponente). Für jede Komponente ist ein eigener Meßraum vorgesehen. Der Meßraum für Wasser ist mit einem Füllhöhenmesser versehen, über den das Wasservolumen dosiert wird. Der Meßraum für Sirup entspricht in seinem Volumen dem für eine Charge erforderlichen Sirupvolumen und wird bei jedem Mischvorgang vollständig befüllt. Der Meßraum für Sirup ist unterhalb des Meßraums für Wasser angeordnet und mit diesem über eine Rohrleitung verbunden. Beim Mischen der Komponenten werden zunächst Wasser und Sirup in ihre Meßräume bis zur vorbestimmten Höhe bzw. bis zum vorbestimmten Volumen eingeleitet. Danach werden die Zuläufe gesperrt, das Wasser wird aus seinem Meßbehälter über die Rohrleitung in den Meßbehälter für Sirup geführt und beide Komponenten werden von dort in den nachgeschalteten Sammelraum geleitet und vermischt.Such a method and such a device is known from DE-PS 31 32 706. The known device is used to mix a smaller amount of syrup (first component) with a larger amount of water (second component). A separate measuring room is provided for each component. The measuring room for water is equipped with a fill level meter, through which the water volume is metered. The volume of the syrup measuring area corresponds to the volume of syrup required for a batch and is completely filled with every mixing process. The measuring room for syrup is arranged below the measuring room for water and connected to it via a pipe. When mixing the components, water and syrup are first introduced into their measuring rooms up to the predetermined height or to the predetermined volume. Then the inlets are blocked, the water is from its measuring container over the Pipeline is led into the measuring container for syrup and from there both components are led into the downstream collecting room and mixed.

Mit dieser bekannten Vorrichtung läßt sich bei einfachem, übersichtlichem Aufbau eine chargenweise Mischung zweier Getränkekomponenten mit relativ hoher Genauigkeit erreichen. Dies ist jedoch nur dann der Fall, wenn im Vorratsraum für den Sirup eine ausreichende Menge vorhanden ist, um ein vollständiges Befüllen des Meßraums für Sirup zu ermöglichen. Enthält dagegen der Vorratsraum bei zu Ende gehendem Sirupvorrat oder nach Abschalten des Sirupzulaufs infolge Betriebsschluß oder Umstellung auf ein anderes Getränk nur noch eine unzureichende Restmenge, so ist entweder überhaupt keine Verarbeitung mehr möglich oder es wird die Restmenge durch Zufüllen von Wasser provisorisch ermittelt und mit Hilfe von Tabellen und vielen manuellen Eingriffen die erforderliche Wassermenge zugegeben. Eine genaue Einhaltung des Mischungsverhältnisses ist hierbei nicht möglich, worunter die Qualität des Getränks leidet.With this known device, a batch-wise mixture of two beverage components can be achieved with relatively high accuracy with a simple, clear structure. However, this is only the case if there is a sufficient amount in the syrup storage space to enable the syrup measuring space to be completely filled. If, on the other hand, the storage room only contains an insufficient residual amount when the syrup supply runs out or after the syrup supply has been switched off due to the end of operations or a change to another beverage, processing is either no longer possible at all or the remaining amount is provisionally determined by adding water and with the help the required amount of water added from tables and many manual interventions. It is not possible to exactly maintain the mixing ratio, which affects the quality of the drink.

Ähnlich liegen die Verhältnisse bei einem Verfahren und einer Vorrichtung gemäß der älteren deutschen Patentanmeldung P 41 14 673.5. Bei dieser Vorrichtung ist der Meßraum mit bestimmtem Volumen für den Sirup mit dem darüber angeordneten Meßraum mit einem Füllhöhenmesser für das Wasser unter Bildung einer die Durchmischung fördernden Querschnittsvergrößerung im Übergangsbereich zu einem Aufnahmeraum für eine vollständige Gemischmenge vereinigt. Im oberen Bereich des Meßraums für den Sirup ist eine feste Füllstandssonde angeordnet, die das bestimmte Volumen des Meßraums definiert. Im normalen Betrieb wird zunächst Sirup in den unteren Meßraum bis zum Erreichen der festen Füllstandssonde eingeleitet. Danach wird gleichfalls in den unteren Meßraum Wasser eingeleitet, wobei bereits eine Mischung mit dem Sirup erfolgt, bis eine bestimmte Gemischmenge, registriert durch den Füllhöhenmesser, erreicht ist. Diese Gemischmenge wird dann durch eine an die Unterseite des unteren Meßraums angeschlossene Rohrleitung unter nochmaliger Durchmischung in einen Sammelraum abgeleitet.The situation is similar with a method and a device according to the older German patent application P 41 14 673.5. In this device, the measuring chamber with a certain volume for the syrup is combined with the measuring chamber arranged above it with a filling height meter for the water, forming a cross-sectional enlargement which promotes mixing in the transition area to a receiving chamber for a complete mixture quantity. A fixed level probe is arranged in the upper area of the measuring space for the syrup Measuring room defined. In normal operation, syrup is first introduced into the lower measuring room until the fixed level probe is reached. Thereafter, water is also introduced into the lower measuring chamber, mixing with the syrup until a certain amount of mixture, registered by the level gauge, is reached. This amount of mixture is then discharged through a pipeline connected to the underside of the lower measuring chamber and mixed again into a collecting chamber.

Auch bei dieser Vorrichtung entstehen Probleme, wenn der Sirup im Vorratsraum für eine vollständige Füllung des Meßraums nicht mehr ausreicht.Problems also arise with this device if the syrup in the storage space is no longer sufficient to completely fill the measuring space.

Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren und eine konstruktiv einfache Vorrichtung zum chargenweisen Mischen von Getränkekomponenten zu schaffen, mit der auch Teilmengen der ersten Komponente, deren Volumen kleiner ist als das Volumen des Meßraums, mit gleichbleibend hoher Mischgenauigkeit rationell verarbeitet werden können.The invention has for its object to provide a method and a structurally simple device for batch-wise mixing of beverage components, with which even subsets of the first component, the volume of which is smaller than the volume of the measuring space, can be processed efficiently with a consistently high mixing accuracy.

Diese Aufgabe wird bei einem Verfahren durch die Merkmale des Anspruchs 1 und bei einer Vorrichtung durch die kennzeichnenden Merkmale des Anspruchs 9 gelöst.This object is achieved in a method by the features of claim 1 and in a device by the characterizing features of claim 9.

Durch die erfindungsgemäße exakte Messung der in den Meßraum eingefüllten Restmenge der ersten Komponente mit anschließender exakter Dosierung der zweiten Komponente ist unabhängig von der Größe der im Vorratsraum enthaltenen Restmenge immer eine genaue Einhaltung des gewünschten Mischungsverhältnisses möglich. Auch kleine Restmengen des Sirups oder dgl., die bisher nicht wirtschaftlich verarbeitet werden konnten, können daher ohne Einbußen an der Getränkequalität zuverlässig aufgearbeitet werden.Due to the exact measurement according to the invention of the residual quantity of the first component filled into the measuring space with subsequent exact dosing of the second component, the quantity contained in the storage space is independent of the size Remaining amount always an exact adherence to the desired mixing ratio possible. Even small residual amounts of the syrup or the like, which previously could not be processed economically, can therefore be reliably processed without sacrificing beverage quality.

Die Dosierung der zweiten Komponente kann durch die im Normalbetrieb arbeitende Dosiereinrichtung erfolgen. Nach einer in den Unteransprüchen enthaltenen Weiterbildung der Erfindung erfolgt jedoch die Messung der zweiten Komponente an der gleichen Stelle bzw. mit der gleichen Einrichtung, mit der die erste Komponente während der sog. Restmengendosierung gemessen wird. Hierdurch ergibt sich eine besonders exakte und rationelle Arbeitsweise.The second component can be dosed by the dosing device operating in normal operation. According to a development of the invention contained in the subclaims, however, the measurement of the second component takes place at the same location or with the same device with which the first component is measured during the so-called residual quantity metering. This results in a particularly precise and efficient way of working.

In den Unteransprüchen sind noch weitere vorteilhafte Weiterbildung der Erfindung angegeben, die zudem auf einfache Weise einen automatischen Ablauf der Restmengendosierung ermöglichen.In the subclaims, further advantageous developments of the invention are specified, which moreover enable the residual quantity metering to be carried out automatically in a simple manner.

Im Nachstehenden wird ein Ausführungsbeispiel der Erfindung anhand der Zeichnung beschrieben. Diese zeigt die schematische Seitenansicht einer Vorrichtung zum Mischen von Getränkekomponenten. Diese ist in eine nur teilweise dargestellte Anlage zum Herstellen eines karbonisierten Erfrischungsgetränks integriert.An exemplary embodiment of the invention is described below with reference to the drawing. This shows the schematic side view of a device for mixing beverage components. This is integrated into a system for producing a carbonated soft drink, which is only partially shown.

Die gezeigte Vorrichtung ist zum Mischen einer ersten Komponente in Form von Sirup S und einer zweiten Komponente in Form von entlüftetem Wasser W eingerichtet und weist eine behälterförmige Dosier- und Mischeinheit 16 auf. In deren Innerem ist ein unterer Meßraum 2 mit kreisförmigem Querschnitt für den Sirup eingerichtet, dessen Volumen auf Höhe der strichpunktiert eingezeichneten Linie durch eine feste Füllstandssonde 23 begrenzt wird. An den Meßraum 2 schließt sich nach oben hin unter Bildung eines sich vergrößernden Übergangsquerschnitts ein Aufnahmeraum 17 mit einem kreisförmigen Querschnitt größeren Durchmessers an. Im Aufnahmeraum 17 ist ein Füllhöhenmesser 18 angeordnet, der die Höhe des aus Sirup und Wasser bestehenden Gemisches G in der Dosier- und Mischeinheit 16 registriert.The device shown is set up for mixing a first component in the form of syrup S and a second component in the form of deaerated water W and has a container-shaped metering and mixing unit 16. In their Inside, a lower measuring chamber 2 with a circular cross-section is set up for the syrup, the volume of which is limited by a fixed level probe 23 at the level of the dash-dotted line. At the top of the measuring space 2 there is a receiving space 17 with a circular cross section of larger diameter, forming an enlarging transition cross section. A filling height meter 18 is arranged in the receiving space 17 and registers the height of the mixture G consisting of syrup and water in the metering and mixing unit 16.

Im unteren Bereich des Meßraums 2 münden über zwei Absperrventile 24, 25 mit unterschiedlichem Querschnitt eine Zuleitung 12 für das entlüftete Wasser sowie über zwei weitere Absperrventile 26, 27 mit unterschiedlichem Querschnitt eine Zwischenleitung 3 für den Sirup ein. Die Zwischenleitung 3 ist an den Boden eines Vorlaufbehälters 28 mit einem Vorratsraum 1 für den Sirup angeschlossen, der auf einem höheren Niveau liegt als der Meßraum 2. Der Vorlaufbehälter 28 ist mit einer unteren Füllstandssonde 14 und einer oberen Füllstandssonde 22 ausgestattet und wird über eine Sirupleitung 21 mit einem Steuerventil 29 versorgt. Außerdem ist der Vorlaufbehälter 28 über eine Leitung 20 an eine CO₂-Sammelleitung 37 angeschlossen, genauso wie die Dosier- und Mischeinheit 16 über eine Leitung 19.In the lower area of the measuring chamber 2, a feed line 12 for the vented water and two intermediate shut-off valves 26, 27 with a different cross-section lead to an intermediate line 3 for the syrup via two shut-off valves 24, 25 with different cross-sections. The intermediate line 3 is connected to the bottom of a flow container 28 with a storage space 1 for the syrup, which is at a higher level than the measuring space 2. The flow container 28 is equipped with a lower level probe 14 and an upper level probe 22 and is via a syrup line 21 supplied with a control valve 29. In addition, the flow tank 28 is connected via a line 20 to a CO₂ manifold 37, just like the metering and mixing unit 16 via a line 19th

Der Meßraum 2 weist unterhalb seiner das Volumen bestimmenden Füllstandssonde 23 eine weitere Füllstandssonde 30 zur Steuerung der Füllgeschwindigkeit auf. Außerdem ist an seine tiefste Stelle eine Ableitung 5 mit einem Absperrventil 31 angeschlossen, die in einen Tank 32 mit einem Sammelraum 4 für das Gemisch einmündet. Vom Tank 32 führt eine weitere Leitung 33 mit einer Pumpe 34 zu einem nicht gezeigten Sättigungsbehälter, in dem das Gemisch mit Kohlensäure imprägniert wird und an den durch die CO₂-Sammelleitung 37 angeschlossen ist.The measuring chamber 2 has, below its level probe 23 which determines the volume, a further level probe 30 for controlling the filling speed. In addition, a drain 5 with a shut-off valve 31 is connected to its lowest point, which leads into a tank 32 a collecting space 4 opens out for the mixture. From the tank 32 leads a further line 33 with a pump 34 to a saturation tank, not shown, in which the mixture is impregnated with carbonic acid and to which the CO₂ manifold 37 is connected.

An den Tank 32 mit dem Sammelraum 4 für das Gemisch sind noch einige weitere, nicht gezeigte Dosier- und Mischeinheiten angeschlossen, die mit dem bisher beschriebenen Aufbau der Dosier- und Mischeinheit 16 übereinstimmen. Auf diese Weise können die verschiedenen Dosier- und Mischeinheiten abwechselnd gefüllt und entleert werden und es ist eine gleichmäßige Beschickung des Sammelraums 4 möglich.A few further metering and mixing units, not shown, are connected to the tank 32 with the collecting space 4 for the mixture, which match the structure of the metering and mixing unit 16 described so far. In this way, the various dosing and mixing units can be filled and emptied alternately and it is possible to feed the collecting space 4 evenly.

An die tiefste Stelle der Zwischenleitung 3 für den Sirup ist eine Nebenleitung 6 angeschlossen, die in den Meßraum 2 der Dosier- und Mischeinheit 16 einmündet. In diese Nebenleitung 6 sind der Reihe nach ein erstes Absperrventil 7, eine Pumpe 10, eine Leermeldesonde 11, ein induktiver Durchflußmesser 9 und ein zweites Absperrventil 8 eingeschaltet, wobei letzteres und der Durchflußmesser 9 nahe der Einmündungsstelle der Nebenleitung 6 in den Meßraum 2 sitzen. Zwischen dem ersten Absperrventil 7 und der Pumpe 10 ist an die Nebenleitung 6 über ein weiteres Absperrventil 13 die Zuleitung 12 für entlüftetes Wasser angeschlossen.At the lowest point of the intermediate line 3 for the syrup, a secondary line 6 is connected, which opens into the measuring space 2 of the metering and mixing unit 16. In this secondary line 6, a first shut-off valve 7, a pump 10, an empty sensor 11, an inductive flow meter 9 and a second shut-off valve 8 are connected in sequence, the latter and the flow meter 9 being located near the junction of the secondary line 6 into the measuring space 2. Between the first shut-off valve 7 and the pump 10, the feed line 12 for deaerated water is connected to the secondary line 6 via a further shut-off valve 13.

Die Leermeldesonde 11, der Durchflußzähler 9 sowie die untere Füllstandssonde 14 im Vorlaufbehälter 28 sind über strichpunktiert angedeutete Signalleitungen mit der Eingangsseite einer Steuereinrichtung 15 verbunden. Die Füllstandssonde 14 ist derart angeordnet, daß sie ein Signal erzeugt, wenn die Restmenge an Sirup im Vorratsraum 1 kleiner ist als das Volumen des Meßraums 2 bis zur oberen Füllstandssonde 23. Die Leermeldesonde 11 ist derart ausgebildet, daß sie ein Signal erzeugt, wenn die Nebenleitung 6 an dieser Stelle leer ist, also weder Sirup noch Wasser enthält. An die Ausgangsseite der Steuereinrichtung 15 sind über strichliert angedeutete Steuerleitungen die drei Absperrventile 7, 8, 13 und die Pumpe 10 angeschlossen. Ferner weist die Steuereinrichtung 15 ein Stellglied 35 auf, mit dem das Mischungsverhältnis zwischen den beiden Komponenten eingestellt werden kann.The empty signal probe 11, the flow meter 9 and the lower fill level probe 14 in the flow tank 28 are connected to the input side of a control device 15 via signal lines indicated by dash-dotted lines. The level probe 14 is arranged such that it has a signal generated when the remaining amount of syrup in the storage room 1 is smaller than the volume of the measuring room 2 to the upper level probe 23. The empty sensor 11 is designed such that it generates a signal when the secondary line 6 is empty at this point, so neither syrup still contains water. The three shut-off valves 7, 8, 13 and the pump 10 are connected to the output side of the control device 15 via control lines indicated by dashed lines. Furthermore, the control device 15 has an actuator 35 with which the mixing ratio between the two components can be set.

Im Normalbetrieb wird der Vorratsraum 1 im Vorlaufbehälter 28 mit Hilfe der oberen Füllstandssonde 22 und dem Steuerventil 29 über die Sirupleitung 21, die zu einem nicht gezeigten Vorratstank führt, weitgehend gefüllt gehalten. Die Sirupmenge im Vorratsraum 1 ist dann groß genug, um den Meßraum 2 mehrmals mit Sirup zu füllen. In diesem Falle läuft das Mischen der beiden Komponenten S und W ohne Mitwirkung der Steuereinrichtung 15 - bei geschlossenen Absperrventilen 7, 8, 13 und abgeschalteter Pumpe 10 - nach folgendem Verfahren ab:In normal operation, the storage space 1 in the flow container 28 is kept largely filled with the aid of the upper level probe 22 and the control valve 29 via the syrup line 21, which leads to a storage tank (not shown). The amount of syrup in the storage room 1 is then large enough to fill the measuring room 2 several times with syrup. In this case, the mixing of the two components S and W takes place without the cooperation of the control device 15 - with the shut-off valves 7, 8, 13 and the pump 10 switched off - according to the following procedure:

Als erstes wird bei geschlossenem Absperrventil 31 aus dem Vorlaufbehälter 28 über die Zwischenleitung 3 und das geöffnete Absperrventil 26 mit größerem Querschnitt der Sirup mit hoher Geschwindigkeit in den Meßraum 2 eingeleitet, bis zum Erreichen der unteren Füllstandssonde 30. Danach wird das Ventil 26 wieder geschlossen und das zuvor geschlossene Absperrventil 27 mit kleinerem Querschnitt geöffnet. Der Sirup strömt nun mit kleiner Geschwindigkeit in den Meßraum 2 ein bis er die obere Füllstandssonde 23 erreicht. Hierauf wird auch das Absperrventil 27 geschlossen. Der Meßraum 2 ist nun bis zu seinem vorbestimmten Volumen vollständig mit Sirup gefüllt.First, when the shut-off valve 31 is closed, the syrup is introduced into the measuring chamber 2 at high speed from the supply tank 28 via the intermediate line 3 and the open shut-off valve 26 with a larger cross section, until the lower fill level probe 30 is reached. Then the valve 26 is closed again and the previously closed shut-off valve 27 opened with a smaller cross section. The syrup now flows with smaller Speed into the measuring room 2 until it reaches the upper level probe 23. The shut-off valve 27 is then also closed. The measuring room 2 is now completely filled with syrup up to its predetermined volume.

Als nächstes wird das bis jetzt geschlossene Absperrventil 24 mit größerem Querschnitt geöffnet, so daß entlüftetes Wasser über eine nicht gezeigte Pumpe und die Zuleitung 12 in den Meßraum 2 mit hoher Geschwindigkeit einströmt. Das Wasser vermischt sich mit dem Sirup und das Gemisch steigt im Aufnahmeraum 17 hoch bis zu einer bestimmten Füllhöhe, registriert durch den Füllhöhenmesser 18. Danach wird das Absperrventil 24 wieder geschlossen und das bis jetzt geschlossene Absperrventil 25 mit kleinerem Querschnitt wird geöffnet. Hierdurch wird das Wasser mit geringer Geschwindigkeit in den Meßraum 2 eingeleitet und zwar bis zum Erreichen eines vorbestimmten Füllstandes an Gemisch im Aufnahmeraum 17, was wiederum durch den Füllhöhenmesser 18 registriert wird. Anstelle des Füllhöhenmessers 18 kann die Steuerung des Wasserzulaufs selbstverständlich auch durch mehrere feststehende Füllstandssonden übernommen werden. Mit Erreichen des vorbestimmten Füllstandes im Aufnahmeraum 17, der vom gewünschten Mischungsverhältnis zwischen Sirup und Wasser abhängig ist, ist die Dosierung von Sirup und Wasser beendet und es hat bereits eine erste Vermischung der beiden Komponenten stattgefunden. Durch Öffnen des bisher geschlossenen Absperrventils 31 wird nunmehr die vollständige Gemisch-Charge über die Ableitung 5 in den Sammelraum 4 des Tanks 32 eingeleitet und dabei weiter vermischt. Das sich im Sammelraum 4 einstellende Gemisch wird anschließend über die Leitung 33 und die Pumpe 34 zum nicht gezeigten Imprägnierbehälter transportiert, dort mit Kohlensäure angereichert und ist dann bereit zur Abfüllung.Next, the shut-off valve 24, which has been closed until now, is opened with a larger cross section, so that deaerated water flows into the measuring chamber 2 at high speed via a pump (not shown) and the feed line 12. The water mixes with the syrup and the mixture rises in the receiving space 17 up to a certain fill level, registered by the fill level meter 18. Then the shut-off valve 24 is closed again and the shut-off valve 25 with a smaller cross section, which has been closed up to now, is opened. As a result, the water is introduced into the measuring space 2 at a low speed, namely until a predetermined fill level of mixture in the receiving space 17 is reached, which in turn is registered by the fill-level meter 18. Instead of the fill level meter 18, the control of the water supply can of course also be taken over by several fixed fill level probes. When the predetermined fill level in the receiving space 17, which is dependent on the desired mixing ratio between syrup and water, is reached, the metering of syrup and water has ended and the two components have already been mixed for the first time. By opening the previously closed shut-off valve 31, the complete mixture batch is now introduced via the discharge line 5 into the collecting space 4 of the tank 32 and thereby further mixed. The resulting mixture in the collecting space 4 is then transported via the line 33 and the pump 34 to the impregnation container, not shown, where it is carbonated and is then ready for filling.

Geht der Sirup im nicht gezeigten Vorratstank zu Ende oder wird die Sirupleitung 21 abgesperrt, z.B. vor Arbeitsschluß oder vor einer Umstellung der Anlage auf ein anderes Getränke, so sinkt der Füllstand im Vorlaufbehälter 28 nach und nach ab, irgendwann bis unter die untere Füllstandssonde 14. Die im Vorratsraum 1 befindliche Restmenge an Sirup reicht nun nicht mehr für eine vollständige Füllung des Meßraums 2 aus. Die Füllstandssonde 14 gibt ein entsprechendes Signal ab und aktiviert die Steuereinrichtung 15. Gleichzeitig wird die nicht gezeigte Steuerung für das obenstehend beschriebene normale Mischverfahren abgeschaltet, entweder manuell, aufgrund eines von der Füllstandssonde 14 ausgelösten Signals, oder automatisch durch die Steuereinrichtung 15. Spätestens jetzt werden die Absperrventile 24 bis 27 sowie das Absperrventil 31 geschlossen. Beeinflußt durch die Steuereinrichtung 15 läuft nunmehr die Mischung der beiden Komponenten entsprechend dem nachfolgend beschriebenen Verfahren ab:If the syrup ends in the storage tank (not shown) or the syrup line 21 is shut off, e.g. before the end of work or before changing the system to another beverage, the level in the flow container 28 gradually drops, at some point to below the lower level probe 14. The remaining amount of syrup in the storage room 1 is no longer sufficient for a complete filling of the Measuring room 2 from. The level probe 14 emits a corresponding signal and activates the control device 15. At the same time, the control (not shown) for the normal mixing process described above is switched off, either manually, on the basis of a signal triggered by the level probe 14, or automatically by the control device 15. At the latest now the shut-off valves 24 to 27 and the shut-off valve 31 are closed. Influenced by the control device 15, the mixing of the two components now takes place in accordance with the method described below:

Als erstes werden die Absperrventile 7 und 8 geöffnet; die Pumpe 10 wird eingeschaltet und der Durchflußmesser 9 wird aktiviert; das Absperrventil 13 bleibt zunächst geschlossen. Daraufhin wird die im Vorratsraum 1 und in der Zwischenleitung 3 vorhandene Rest- oder Teilmenge des Sirups über die Nebenleitung 6 nahezu vollständig in den Meßraum 2 eingeleitet, bis auch die Nebenleitung 6 bis hin zur Leermeldesonde 11 leergefahren ist und diese ein Steuersignal aussendet. Danach werden die beiden Ventile 7 und 8, zumindest aber das Ventil 7 geschlossen und die vom Durchflußmesser 9 registrierte Sirupmenge wird angezeigt und an die Steuereinrichtung 15 gemeldet. Diese errechnet aus der gemessenen Sirupmenge und dem eingestellten Mischungsverhältnis die erforderliche Wassermenge. Diese Durchflußmenge wird nun dem Durchflußmesser 9 vorgegeben und es wird durch Öffnen der Ventile 13 und ggf. 8 Wasser aus der Zuleitung 12 über die Nebenleitung 6 in den Meßraum 2 eingeleitet. Bei Erreichen der vorgegebenen Menge am Durchflußzähler 9 veranlaßt dieser sofort ein Schließen der Absperrventile 8 und 13 und ein Abschalten der Pumpe 10. In der Dosier- und Mischeinheit 16 befindet sich nunmehr die Teilmenge einer normalen, vollständigen Charge mit dem gleichen Mischungsverhältnis der beiden Komponenten. Diese Teilcharge wird anschließend in der üblichen Weise durch Öffnen des Absperrventils 31 über die Ableitung 5 in den Sammelraum 4 eingeleitet. Die verbleibende Wassermenge in der Nebenleitung 6 kann durch Öffnen eines Ablaufhahns 36 zwischen dem Absperrventil 7 und der Pumpe 10 abgelassen werden.First the shut-off valves 7 and 8 are opened; the pump 10 is switched on and the flow meter 9 is activated; the shut-off valve 13 initially remains closed. Then the remaining or partial amount of the syrup present in the storage room 1 and in the intermediate line 3 is almost completely fed into the measuring room 2 via the secondary line 6 initiated until the secondary line 6 has run empty as far as the empty signal probe 11 and this emits a control signal. Then the two valves 7 and 8, or at least the valve 7, are closed and the amount of syrup registered by the flow meter 9 is displayed and reported to the control device 15. This calculates the required amount of water from the measured amount of syrup and the set mixing ratio. This flow rate is now given to the flow meter 9 and water is introduced into the measuring chamber 2 via the secondary line 6 by opening the valves 13 and possibly 8 water from the feed line 12. When the predetermined amount at the flow meter 9 is reached, the shut-off valves 8 and 13 are immediately closed and the pump 10 is switched off. The metering and mixing unit 16 now contains the partial amount of a normal, complete batch with the same mixing ratio of the two components. This partial batch is then introduced into the collecting space 4 in the usual way by opening the shut-off valve 31 via the discharge line 5. The remaining amount of water in the secondary line 6 can be drained by opening a drain valve 36 between the shut-off valve 7 and the pump 10.

Das vorbeschriebene Verfahren kann auch dann durchgeführt werden, wenn zwar ausreichend Sirup für eine vollständige Charge vorhanden ist, aus anderen Gründen, z.B. weil nur noch eine gewisse Anzahl von Flaschen zu füllen ist, jedoch nur eine Teilcharge ausgemischt werden soll. In diesem Fall erfolgt die Umstellung manuell und nicht automatisch durch die Füllstandssonde 14. Mit Hilfe des Durchflußmessers 9 ist außerdem ein einfaches, exaktes "Eichen" der Füllstandssonden 23, 30 und des Füllhöhenmessers 18 möglich.The above-described method can also be carried out if there is sufficient syrup for a complete batch, for other reasons, for example because only a certain number of bottles have to be filled, but only a partial batch is to be mixed. In this case, the change is made manually and not automatically the level probe 14. With the aid of the flow meter 9, a simple, exact "calibration" of the level probes 23, 30 and the level gauge 18 is also possible.

Im Vorstehenden wurde die Durchführung des erfindungsgemäßen Verfahrens im Zusammenhang mit einer Vorrichtung beschrieben, bei welcher der Meßraum für den Sirup mit dem darüber angeordneten Meßraum für das Wasser bzw. für das Gemisch über einen Übergangsbereich mit sich vergrößerndem Querschnitt verbunden ist. Bei einer Vorrichtung, bei der die Verbindung dieser beiden Meßräume über eine Leitung mit einem Absperrventil erfolgt, gibt es zwei Möglichkeiten: Ist das Absperrventil während des Dosierens geöffnet, so läuft das Verfahren in der bereits beschriebenen Weise ab, da dann das Gemisch aus dem unteren Meßraum für den Sirup in den oberen Meßraum hochsteigen kann. Ist dagegen das Absperrventil geschlossen, so wird das Wasser nach der teilweisen Füllung des unteren Meßraums mit Sirup in den oberen Meßraum für das Wasser separat abgemessen, z.B. durch den ohnehin vorhandenen Füllhöhenmesser für den Normalbetrieb oder durch den Durchflußmesser für den Sirup. Hierzu ist hinter dem Durchflußmesser an die Nebenleitung eine weitere Leitung mit einem Absperrventil angeschlossen, die unmittelbar in den oberen Meßraum für das Wasser einmündet.In the foregoing, the implementation of the method according to the invention has been described in connection with a device in which the measuring space for the syrup is connected to the measuring space for the water or for the mixture arranged above it via a transition region with an increasing cross section. In a device in which these two measuring rooms are connected via a line with a shut-off valve, there are two options: If the shut-off valve is open during dosing, the process proceeds in the manner already described, since then the mixture from the lower one Measuring room for the syrup can climb into the upper measuring room. If, on the other hand, the shut-off valve is closed, the water after the partial filling of the lower measuring space with syrup into the upper measuring space for the water is measured separately, e.g. by the already existing level meter for normal operation or by the flow meter for the syrup. For this purpose, another line with a shut-off valve is connected behind the flow meter to the secondary line, which opens directly into the upper measuring chamber for the water.

Claims (15)

  1. Method for mixing two beverage components, in particular syrup and water, wherein initially in a first step, repeatedly if occasion arises, the first component is introduced from a storage chamber into a measuring chamber of given volume, so that the measuring chamber is completely filled, the second component is proportioned according to a desired mixture ratio, and then both components are conducted away into a collecting chamber, and the measuring chamber is then in a second step only partially filled on introduction of the first component and the quantity of the first component introduced into the measuring chamber is measured directly and then the second component is proportioned according to the measured quantity of the first component.
  2. Method according to claim 1, characterised in that during partial filling of the measuring chamber, the throughflow of the first component is measured at a measuring point.
  3. Method according to claim 2, characterised in that the measuring point is arranged near the point of entry of the first component into the measuring chamber.
  4. Method according to any of claims 1 to 3, characterised in that proportioning of the second component takes place by measurement of the throughflow at a measuring point.
  5. Method according to claim 4, characterised in that the measuring point is arranged near the point of entry of the second component into the measuring chamber.
  6. Method according to any of claims 2 to 5, characterised in that the throughflow of the first component and the throughflow of the second component are measured successively at the same measuring point.
  7. Method according to any of claims 1 to 6, characterised in that the residual quantity of the first component contained in the storage chamber is almost completely introduced into the measuring chamber.
  8. Method according to any of claims 2 to 7, characterised in that introduction of the first component into the measuring chamber is stopped shortly before the end of the residual quantity reaches the measuring point.
  9. Apparatus for mixing two beverage components, in particular syrup and water, with a storage chamber (1) and a measuring chamber (2) of given volume for the first component allowing measurement of a fixed volume, which are connected to each other by an intermediate pipe (3) with at least one shut-off device (26, 27), with a proportioning device for the second component and with a collecting chamber (4) for the proportioned components, which is connected by an outlet pipe (5) at least to the measuring chamber, characterised in that connected to the storage chamber (1) or to the intermediate pipe (3) of the first component is a secondary pipe (6) which leads into the measuring chamber (2) and in which are inserted at least one shut-off valve (7, 8) and a flowmeter (9).
  10. Apparatus according to claim 9, characterised in that a pump (10) is inserted in the secondary pipe (6), preferably in front of the flowmeter (9).
  11. Apparatus according to claim 9 or 10, characterised in that an "empty" indicating detector (11) is inserted in the secondary pipe (6) in front of the flowmeter (9).
  12. Apparatus according to any of claims 9 to 11, characterised in that connected to the secondary pipe (6) in front of the flowmeter (9) is a supply pipe (12) for the second component with a shut-off valve (13).
  13. Apparatus according to any of claims 9 to 12, characterised in that in the storage chamber (1) is arranged a level detector (14) which indicates a fall of the level below a value sufficient for complete filling of the measuring chamber (2).
  14. Apparatus according to any of claims 9 to 13, characterised in that the flowmeter (9), the "empty" indicating detector (11) and the level detector (14) are connected to the input of a control device (15) which automatically opens and closes the shut-off valves (7, 8, 13) as a function of the input signals.
  15. Apparatus according to claim 14, characterised in that the control device (15) automatically switches the pump (10) on and off.
EP92914688A 1991-07-12 1992-07-08 Method and device for mixing drink components Expired - Lifetime EP0548317B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4123047A DE4123047A1 (en) 1991-07-12 1991-07-12 METHOD AND DEVICE FOR MIXING BEVERAGE COMPONENTS
DE4123047 1991-07-12
PCT/EP1992/001540 WO1993000988A1 (en) 1991-07-12 1992-07-08 Method and device for mixing drink components

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EP0548317A1 EP0548317A1 (en) 1993-06-30
EP0548317B1 true EP0548317B1 (en) 1996-01-10

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EP (1) EP0548317B1 (en)
JP (1) JP2637286B2 (en)
DE (2) DE4123047A1 (en)
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FR2831835A1 (en) * 2001-11-07 2003-05-09 Jean Pierre Loubes Mixing apparatus for additive to a main liquid, e.g. a sulfite to wine must, comprises two identical mixing vessels with pipes and solenoid valves
JP4790995B2 (en) * 2004-03-19 2011-10-12 株式会社テクノメイト Slurry dilution device
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EP2272384A1 (en) * 2009-07-08 2011-01-12 INDAG Gesellschaft für Industriebedarf mbH & Co. Betriebs KG Method and device for making drinks
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DE102012215530A1 (en) 2012-08-31 2014-03-06 Krones Ag Mixing control valve
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JPH06500502A (en) 1994-01-20
DE4123047A1 (en) 1993-01-14
US5308160A (en) 1994-05-03
WO1993000988A1 (en) 1993-01-21
DE59205017D1 (en) 1996-02-22
EP0548317A1 (en) 1993-06-30
JP2637286B2 (en) 1997-08-06
ES2082482T3 (en) 1996-03-16

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AT214200B (en) Device for the periodic dispensing of liquids

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