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EP0173031B1 - Device for the carbonating of water - Google Patents

Device for the carbonating of water Download PDF

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Publication number
EP0173031B1
EP0173031B1 EP85108250A EP85108250A EP0173031B1 EP 0173031 B1 EP0173031 B1 EP 0173031B1 EP 85108250 A EP85108250 A EP 85108250A EP 85108250 A EP85108250 A EP 85108250A EP 0173031 B1 EP0173031 B1 EP 0173031B1
Authority
EP
European Patent Office
Prior art keywords
valve
pressure
gas
arrangement according
water
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
Application number
EP85108250A
Other languages
German (de)
French (fr)
Other versions
EP0173031A3 (en
EP0173031A2 (en
Inventor
Matthias Dipl.-Ing. Aschberger
Karlheinz Dipl.-Ing. Färber
Anton Dipl.-Ing. Deininger
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.)
BSH Hausgeraete GmbH
Coca Cola Co
Original Assignee
Bosch Siemens Hausgerate GmbH
Coca Cola Co
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 Bosch Siemens Hausgerate GmbH, Coca Cola Co filed Critical Bosch Siemens Hausgerate GmbH
Priority to AT85108250T priority Critical patent/ATE49136T1/en
Publication of EP0173031A2 publication Critical patent/EP0173031A2/en
Publication of EP0173031A3 publication Critical patent/EP0173031A3/en
Application granted granted Critical
Publication of EP0173031B1 publication Critical patent/EP0173031B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • B01F35/75—Discharge mechanisms
    • B01F35/754—Discharge mechanisms characterised by the means for discharging the components from the mixer
    • B01F35/7547—Discharge mechanisms characterised by the means for discharging the components from the mixer using valves, gates, orifices or openings
    • 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
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/236—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids specially adapted for aerating or carbonating beverages
    • B01F23/2362—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids specially adapted for aerating or carbonating beverages for aerating or carbonating within receptacles or tanks, e.g. distribution machines
    • 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
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/2366—Parts; Accessories
    • 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
    • B01F35/71—Feed mechanisms
    • B01F35/712—Feed mechanisms for feeding fluids
    • 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
    • B01F35/71—Feed mechanisms
    • B01F35/717—Feed mechanisms characterised by the means for feeding the components to the mixer
    • B01F35/71805—Feed mechanisms characterised by the means for feeding the components to the mixer using valves, gates, orifices or openings
    • 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
    • B01F35/75—Discharge mechanisms
    • B01F35/754—Discharge mechanisms characterised by the means for discharging the components from the mixer
    • B01F35/75415—Discharge mechanisms characterised by the means for discharging the components from the mixer using gravity
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S261/00—Gas and liquid contact apparatus
    • Y10S261/07—Carbonators

Definitions

  • the present invention relates to an arrangement of pressurized water, consisting of a - preferably cooled - storage container, in which, if necessary, water up to a predetermined level and CO 2 gas can be supplied via a pressure reducing valve arrangement and a supply line and from which the carbonized water can be removed via a closing and pressure reducing valve.
  • Such arrangements for carbonating water are used in particular in vending machines by means of which carbonized water can be mixed with beverage concentrates to form a usable beverage.
  • a storage container is used, in which water is enriched and cooled with CO 2 gas.
  • CO 2 gas is supplied via a pressure-dependent delivery rate control device.
  • the flow control device for the water can be either a pump arrangement, a control valve if the supplied water is available under sufficient high pressure, or a combination of both measures.
  • the delivery rate control device for the CO 2 gas - since this CO 2 gas is usually available in storage bottles with high gas pressure - will usually be a self-regulating pressure reducing valve arrangement.
  • Pressure reducing valve arrangements of a known type are able to provide a relatively constant, predetermined gas pressure, provided that an overlying gas pressure is present on the inlet side.
  • valve systems are often used to prevent these systems from being exposed to excessive operating pressure. If this operating pressure is exceeded, these systems open and let gas escape until the permissible maximum operating pressure is again fallen below.
  • G-A 1 405 245 it is known (GB-A 1 405 245) to provide a valve system for the carbonator within a beverage dispenser, with which it is possible to lower the operating pressure by opening it via an externally actuated tappet.
  • the present invention is based on the object of providing a device which evaluates in a simple manner the falling below a predetermined operating pressure.
  • this device is intended to provide the prerequisite for simply indicating that the operating pressure has fallen below and / or for pressure equalization of the storage container to the ambient atmosphere.
  • An arrangement for carbonating water in a storage container which is under increased internal pressure with respect to the ambient atmosphere and which meets these requirements is characterized according to the invention in that in the CO 2 gas region following the pressure-reducing valve arrangement, a gas pressure in the storage container against one against the outside atmosphere is increased due to the outside atmosphere Restoring force an outlet opening is kept closed valve closure member and that the restoring force acting on the valve closure member is equal to the predetermined minimum permitted operating pressure in the reservoir (4).
  • the valve closing member is held in the closed position by the gas pressure required for correct operation and predominating over the restoring force. If the gas pressure in the system drops below a predetermined amount, the effect of which falls below the effect of the restoring force, the valve-closing member opens. This creates a signal effect.
  • This can consist in the simplest way of adjusting a valve tappet.
  • the gas flowing out under the low pressure can also be used for acoustic signaling.
  • the valve tappet can also be used to force the valve to open against normal working pressure, for example to vent the system.
  • a spring element can be used as the simplest form for the restoring force, the restoring force of which can preferably be set to a desired value by means of an adjusting screw.
  • a flow restrictor is arranged in the outlet opening for the C0 2 gas which can be closed by the valve-closing member.
  • This flow restrictor is dimensioned such that within the reservoir due to the amount of water flowing in via their flow rate control device as a result of the gas flow permitted by the flow restrictor, no pressure closing the valve-closing member is built up, while with subsequent supply of CO 2 gas with a significantly higher delivery volume per unit of time, the internal pressure built up via the flow restrictor in is able to close the outlet opening via the valve closing member.
  • the reservoir is to be filled with water up to a predetermined state in a first operation - detected by appropriate sensors - and then supplied with CO 2 gas.
  • the arrangement according to the invention is characterized in that the valve closing member is designed as a tappet with a disk-shaped valve plate, which is axially displaceably opposite a valve seat of the valve housing in a bore in the valve housing.
  • a sealing ring made of resiliently deformable material is preferably arranged between the valve plate and valve seat.
  • the spring element which is supported as a compression spring relative to the valve housing and the valve plate, is placed on the tappet.
  • the plunger is preferably guided with play in the valve housing, so that the gas can escape to the outside between this plunger and the bore of the valve housing when the valve is open.
  • the sealing ring made of resiliently deformable material is used for a reliable seal when the valve is closed. Due to the conical design of the seat, the sealing behavior can be advantageously influenced if necessary.
  • the arrangement according to the invention is characterized in that the valve plate is guided as a flow restrictor in a bore in the valve housing, forming an edge gap between the valve plate and the guide bore.
  • the closing force for the open valve thus receives components from the pressure difference acting on the valve between internal pressure and external pressure and from the gas flow effect.
  • the arrangement according to the invention is integrated in the structural unit of the delivery quantity control device for the CO 2 gas
  • a beverage dispenser for mixing different beverage concentrates with chilled CO 2 water to form a mixed beverage contains as essential components a mixing trough 1, in which the mixing process is initiated or carried out, beverage concentrate containers 2, from which the beverage concentrates are added to the mixing trough 1 in portions via metering devices 3 are supplied, and a storage container 4 for cooled CO 2 water, which can flow into the mixing trough as required via a discharge valve 5.
  • the mixture leaves the mixing trough 1 via an outlet funnel 6.
  • the CO 2 water supply is cooled by refrigerants which are passed through a pipe 7 wound around the storage container 4.
  • the CO 2 water supply within the storage container 4 is supplemented by the quantities withdrawn via the discharge valve 5 by supplying fresh water via a pipeline 8, controlled by a valve system 9, and via a pipeline 10 from a container 11 with CO 2 gas filling, controlled by a valve system 12, CO 2 gas is supplied.
  • the interior of the storage container 4 is under an increased pressure compared to the atmosphere. This contributes to the desired good carbonation of the water within the storage container 4.
  • This excess pressure in the storage container 4 is controlled by a reducing valve, which reduces the substantially higher gas pressure within the storage bottle 11 to the operating pressure in the storage container 4.
  • FIGS. 2 and 3 A corresponding control device for influencing a bottle check valve is shown by FIGS. 2 and 3.
  • the gas pressure required in the storage container 4 acts within a chamber 13 of this valve arrangement 12 via a piston 14 against the force of a spring 15. If the gas pressure inside the storage container 4 and thus in the valve chamber 13 decreases, the piston 14 becomes by the force of the spring 15 pressed down and over the plunger 16, a valve (not shown) is opened, which permits or increases the gas flow from the storage bottle 11. If the gas pressure in the storage container 4 and thus in the valve chamber 13 rises again, then this raises the piston 14 again against the force of the spring 15 and the gas cylinder valve can follow the plunger 16 to throttle the CO 2 gas flow from the cylinder or completely interrupt. Under normal circumstances, this arrangement works smoothly and functionally as long as there is sufficient gas pressure in the storage bottle 11.
  • valve closing element 17 shown in detail in FIG. 4, is used for this purpose within the control valve 12.
  • This valve closing element gan 17 lies in the channel system open to the reservoir 4. In principle, it is similar to a check valve with the special feature that the valve closing element is acted upon by gas pressure in the closing direction and by spring force against the closing direction.
  • the valve closing element includes a valve tappet 18 with a valve piston 19, which acts against a valve seat 21 of the valve housing 22 via a ring 20 made of elastic material.
  • the piston 19 With sufficient gas pressure within the chamber 23, which also corresponds to the gas pressure in the reservoir 4, the piston 19 is held in the closed position against the force of an opposing spring 24. However, if the operating pressure within the storage container 4 and thus within the chamber 23 falls below a predetermined value and represented by the force of the spring 24, the piston 19 can follow the force of this spring 24 and the valve is opened. The residual gas can escape and the position of the plunger 18 indicates that the gas pressure in the system has dropped.
  • this valve closing member is also suitable for "venting" the storage container 4 after the gas supply from the storage container 11 has been interrupted. This can be necessary, for example, if a disturbance in the water supply has taken place or has taken place.
  • the columns 25 and 26 of the valve closing member 17 are dimensioned such that the gas flow corresponding to the inflow speed of the water into the storage container 4 is so unhindered by this column that no gas pressure builds up in the chamber 23 which is capable of that Close valve against the force of spring 24.
  • the restoring force of the spring can be changed by means of a corresponding adjusting screw, by means of which the spring 24 is supported with respect to the housing 22 of the valve closing member 17.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Devices For Dispensing Beverages (AREA)
  • Non-Alcoholic Beverages (AREA)
  • Water Treatment By Sorption (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)

Abstract

A water-carbonation system having a pressurized tank which is preferably cooled, a water supply and a CO2 gas supply. The CO2 gas supply has a pressure-reducing valve assembly in the supply line. The valve of this assembly is maintained in a closed position by the gas pressure in the tank. However, when this pressure falls below a predetermined limit, the valve will move to an open position to vent the tank to the atmosphere. A signal may be used in conjunction with the valve to notify an operator of the drop in pressure. The valve may also be manually operated to vent the tank. This water-carbonation system can be used in beverage dispensers in which the carbonized water is mixed with beverage concentrates to prepare a beverage that is ready for consumption.

Description

Die vorliegende Erfindung bezieht sich auf eine Anordnung von unter Druck stehendem Wasser, bestehend aus einem - bevorzugt gekühlten - Vorratsbehälter, in welchem bedarfsweise Wasser bis zu einem vorgegebenen Pegel sowie CO2-Gas über eine Druckminder-Ventilanordnung und eine Zuführungsleitung zuführbar sind und aus welchem das karbonisierte Wasser über ein Schließ-und Druckminderventil entnehmbar ist.The present invention relates to an arrangement of pressurized water, consisting of a - preferably cooled - storage container, in which, if necessary, water up to a predetermined level and CO 2 gas can be supplied via a pressure reducing valve arrangement and a supply line and from which the carbonized water can be removed via a closing and pressure reducing valve.

Derartige Anordnungen zum Karbonisieren von Wasser finden insbesondere Anwendung in Getränkeautomaten, mittels derer karbonisiertes Wasser mit Getränkekonzentraten zu einem gebrauchsfähigen Getränk mischbar ist. Dazu findet ein Vorratsbehälter Anwendung, in welchem Wasser mit CO2-Gas angereichert und gekühl wird. Um eine ausreichende Karbonisierung des Wassers zu gewährleisten, ist es erforderlich bzw. zumindest sehr zweckmäßig, die Karbonisierungsmaßnahme im Vorratsbehälter unter erhöhtem Druck vorzunehmen. Zu diesem Zweck werden dem Vorratsbehälter über eine füllstandsabhängig beeinflußte Fördermengen-Steuervorrichtung bedarfsweise Wasser und über eine druckabhängig beeinflußte Fördermengen-Steuervorrichtung CO2-Gas zugeführt. Die Fördermengen-Steuervorrichtung für das Wasser kan sein, entweder eine Pumpenanordnung, ein Steuerventil, wenn das zugeführte Wasser gesichert unter genügend hohem Druck zur Verfügung steht, oder eine Kombination beider Maßnahmen. Die Fördermengen-Steuervorrichtung für das CO2-Gas wird - da dieses CO2-Gas üblicherweise in Vorratsflaschen mit hohem Gasdruck zur Verfügung steht - üblicherweise eine selbstregelnde Druckminder-Ventilanordnung sein. Druckminder-Ventilanordnungen bekannter Bauart sind in der Lage, einen relativ konstanten, vorgegebenen Gasdruck zur Verfügung zu stellen, soweit eingangsseitig ein darüberliegender Gasdruck anliegt.Such arrangements for carbonating water are used in particular in vending machines by means of which carbonized water can be mixed with beverage concentrates to form a usable beverage. For this purpose, a storage container is used, in which water is enriched and cooled with CO 2 gas. In order to ensure sufficient carbonation of the water, it is necessary or at least very expedient to carry out the carbonization measure in the storage container under increased pressure. For this purpose, water is fed to the reservoir via a level-dependent delivery rate control device and, if necessary, CO 2 gas is supplied via a pressure-dependent delivery rate control device. The flow control device for the water can be either a pump arrangement, a control valve if the supplied water is available under sufficient high pressure, or a combination of both measures. The delivery rate control device for the CO 2 gas - since this CO 2 gas is usually available in storage bottles with high gas pressure - will usually be a self-regulating pressure reducing valve arrangement. Pressure reducing valve arrangements of a known type are able to provide a relatively constant, predetermined gas pressure, provided that an overlying gas pressure is present on the inlet side.

Besondere Probleme treten bei derartigen Systemen dann auf, wenn der Vorratsbehälter neu mit Wasser und/oder mit CO2-Gas in einem Umfang zu füllen ist, welcher über der üblichen intermittierenden Betriebsweise liegt. Insbesondere wenn der Vorrat in der CO2-Vorratsflasche erschöpft ist und eine Auswechslung dieser Vorratsflasche erforderlich wird, ist ein Druckabfall auch im Vorratsbehälter gegeben bzw. zu befürchten. Dieser Druckabfall führt dazu, daß das Wasser ungenügend karbonisiert wird. Es kann aber auch zweckmäßig sein, dafür zu sorgen, daß für eine Wartung bzw. Mängelbehebung ein Druckabfall im Vorratsbehälter auf normalen atmosphärischen Druck zwangsweise durchführbar ist.Special problems arise with such systems when the reservoir is to be filled with water and / or with CO 2 gas to an extent which is above the usual intermittent mode of operation. In particular, if the supply in the CO 2 storage bottle is exhausted and a replacement of this storage bottle is necessary, a pressure drop in the storage container is also given or is to be feared. This pressure drop means that the water is insufficiently carbonized. However, it can also be expedient to ensure that a pressure drop in the storage container to normal atmospheric pressure can be carried out for maintenance or correction of defects.

In Gassysteme, die unter hohem Betriebsdruck stehen, werden häufig Ventilsysteme eingesetzt, welche verhindern sollen, daß diese Systeme einem zu hohen Betriebsdruck ausgesetzt werden. Bei Überschreiten dieses Betriebsdrucks öffnen diese Systeme und lassen solange Gas entweichen, bis der zulässige maximale Betriebsdruck wieder unterschritten ist. Darüber hinaus ist es bekannt (GB-A 1 405 245), ein Ventilsystem für den Karbonisator innerhalb eines Getränkeausgabegeräts vorzusehen, mit welchem es möglich ist, durch Offnen über einen von außen betätigbaren Stößel den Betriebsdruck abzusenken.In gas systems that are under high operating pressure, valve systems are often used to prevent these systems from being exposed to excessive operating pressure. If this operating pressure is exceeded, these systems open and let gas escape until the permissible maximum operating pressure is again fallen below. In addition, it is known (GB-A 1 405 245) to provide a valve system for the carbonator within a beverage dispenser, with which it is possible to lower the operating pressure by opening it via an externally actuated tappet.

Der vorliegenden Erfindung liegt nunmehr die Aufgabe zugrunde, eine Vorrichtung bereitzustellen, welche in einfacher Weise das Unterschreiten eines vorgegebenen Betriebsdrucks auswertet. Darüber hinaus soll durch diese Vorrichtung die Voraussetzung gegeben sein, in einfacher Weise das Unterschreiten des Betriebsdrucks anzuzeigen und/oder einen Druckausgleich des Vorratsbehälters hin zur Umgebungsatmosphäre durchzuführen.The present invention is based on the object of providing a device which evaluates in a simple manner the falling below a predetermined operating pressure. In addition, this device is intended to provide the prerequisite for simply indicating that the operating pressure has fallen below and / or for pressure equalization of the storage container to the ambient atmosphere.

Eine Anordnung zum Karbonisieren von Wasser in einem gegenüber der Umgebungsatmosphäre unter erhöhtem Innendruck stehenden Vorratsbehälter welche diesen Forderungen gerecht wird, ist erfindungsgemäß dadurch gekennzeichnet, daß in dem der Druckminder-Ventilanordnung folgenden CO2-Gasbereich ein durch gegenüber der Außenathmosphäre erhöhten Gasdruck im Vorratsbehälter gegen eine Rückstellkraft eine Austrittsöffnung geschlossen gehaltenes Ventil-Verschließorgan angeordnet ist und daß die auf das Ventil-Verschließorgan wirkende Rückstellkraft gleich ist dem vorgegebenen kleinsten zugelassenen Betriebsdruck im Vorratsbehälter (4).An arrangement for carbonating water in a storage container which is under increased internal pressure with respect to the ambient atmosphere and which meets these requirements is characterized according to the invention in that in the CO 2 gas region following the pressure-reducing valve arrangement, a gas pressure in the storage container against one against the outside atmosphere is increased due to the outside atmosphere Restoring force an outlet opening is kept closed valve closure member and that the restoring force acting on the valve closure member is equal to the predetermined minimum permitted operating pressure in the reservoir (4).

Bei Anwendung dieser erfindungsgemäßen Maßnahme wird das Ventil-Verschließorgan durch den für den ordnungsgemäßen Betrieb erforderlichen, gegenüber der Rückstellkraft überwiegenden Gasdruck in der geschlossenen Stellung gehalten. Sinkt der Gasdruck im System unter einen vorgegebenen Betrag, dessen Wirkung die Wirkung der Rückstellkraft unterschreitet, so öffnet das Ventil-Verschließorgan. Damit entsteht eine Signalwirkung. Diese kann in einfachster Weise in der Verstellung eines Ventilstößels bestehen. Das unter dem niedrigen Druck ausströmende Gas kann aber auch für eine akustische Signalgebung benutzt werden. Über den herausgeführten Ventilstößel ist aber auch ein zwangsweises Offnen des Ventils gegen den normalen Arbeitsdruck möglich, um beispielsweise das System zu Entlüften.When this measure according to the invention is used, the valve closing member is held in the closed position by the gas pressure required for correct operation and predominating over the restoring force. If the gas pressure in the system drops below a predetermined amount, the effect of which falls below the effect of the restoring force, the valve-closing member opens. This creates a signal effect. This can consist in the simplest way of adjusting a valve tappet. The gas flowing out under the low pressure can also be used for acoustic signaling. However, the valve tappet can also be used to force the valve to open against normal working pressure, for example to vent the system.

Als einfachste Form für die Rückstellkraft kann ein Federelement Anwendung finden, dessen Rückstellkraft bevorzugterweise über eine Stellschraube auf einen gewünschten Wert einstellbar ist.A spring element can be used as the simplest form for the restoring force, the restoring force of which can preferably be set to a desired value by means of an adjusting screw.

Nach einer bevorzugten Ausgestaltung der erfindungsgemäßen Anordnung ist in der durch das Ventil-Verschließorgan verschließbaren Austrittsöffnung für das C02-Gas eine Strömungsdrossel angeordnet. Diese Strömungsdrossel ist derart dimensioniert, daß innerhalb des Vorratsbehälters durch die Menge von über deren Fördermengen-Steuervorrichtung zufließendes Wasser infolge des durch die Strömungsdrossel zugelassenen Gasflusses kein das Ventil-Verschließorgan verschließender Druck aufgebaut wird, während bei anschließender Zuführung von CO2-Gas mit wesentlich höherem Fördervolumen je Zeiteinheit der über die Stömungsdrossel aufgebaute Innendruck in der Lage ist, die Austrittsöffnung über das Ventil-Verschließorgan zu schließen.According to a preferred embodiment of the arrangement according to the invention, a flow restrictor is arranged in the outlet opening for the C0 2 gas which can be closed by the valve-closing member. This flow restrictor is dimensioned such that within the reservoir due to the amount of water flowing in via their flow rate control device as a result of the gas flow permitted by the flow restrictor, no pressure closing the valve-closing member is built up, while with subsequent supply of CO 2 gas with a significantly higher delivery volume per unit of time, the internal pressure built up via the flow restrictor in is able to close the outlet opening via the valve closing member.

Ohne aufwendige Zusatzmaßnahmen ist der Vorratsbehälter also in einem ersten Arbeitsgang mit Wasser bis zu einem vorgegebenen Zustand - erfaßt durch entsprechende Sensoren - zu füllen und anschließend mit CO2-Gas zu versorgen.Without complex additional measures, the reservoir is to be filled with water up to a predetermined state in a first operation - detected by appropriate sensors - and then supplied with CO 2 gas.

Nach einer bevorzugten Ausführungsform ist die erfindungsgemäße Anordnung dadurch gekennzeichnet, daß das Ventil-Verschließorgan als Stößel mit scheibenförmiger Ventilplatte ausgebildet ist, welche in einer Bohrung des Ventilgehäuses geführt axial verschieblich einem Ventilsitz des Ventilgehäuses gegenübersteht. Bevorzugt ist zwischen Ventilplatte und Ventilsitz ein Dichtring aus nachgiebig verformbarem Material angeordnet Auf dem Stößel ist das Federelement, welches sich gegenüber dem Ventilgehäuse und der Ventilplatte als Druckfeder abstützt, aufgesetzt. Ein derartiger Aufbau ist äußerst raumsparend und funktionssicher. Der Stößel ist dabei bevorzugt mit Spiel im Ventilgehäuse geführt, so daß zwischen diesem Stößel und der Bohrung des Ventilgehäuses bei geöffnetem Ventil das Gas nach außen entweichen kann. Der Dichtring aus nachgiebig verformbarem Material dient der funktionssicheren Dichtung bei geschlossenem Ventil. Durch konische Ausgestaltung des Vertilsitzes ist das Dichtverhalten im Bedarfsfall vorteilhaft beeinflußbar.According to a preferred embodiment, the arrangement according to the invention is characterized in that the valve closing member is designed as a tappet with a disk-shaped valve plate, which is axially displaceably opposite a valve seat of the valve housing in a bore in the valve housing. A sealing ring made of resiliently deformable material is preferably arranged between the valve plate and valve seat. The spring element, which is supported as a compression spring relative to the valve housing and the valve plate, is placed on the tappet. Such a structure is extremely space-saving and reliable. The plunger is preferably guided with play in the valve housing, so that the gas can escape to the outside between this plunger and the bore of the valve housing when the valve is open. The sealing ring made of resiliently deformable material is used for a reliable seal when the valve is closed. Due to the conical design of the seat, the sealing behavior can be advantageously influenced if necessary.

Nach einer bevorzugten Weiterbildung ist die erfindungsgemäße Anordnung dadurch gekennzeichnet, daß die Ventilplatte in einer Bohrung des Ventilgehäuses unter Bildung eines Randspaltes zwischen Ventilplatte und Führungsbohrung als Strömungsdrossel geführt ist. Die Schließkraft für das geöffnete Ventil erhält somit Komponenten aus dem auf das Ventil wirkenden Druckunterschied zwischen Innendruck und Außendruck und aus der Gasströmungswirkung.According to a preferred development, the arrangement according to the invention is characterized in that the valve plate is guided as a flow restrictor in a bore in the valve housing, forming an edge gap between the valve plate and the guide bore. The closing force for the open valve thus receives components from the pressure difference acting on the valve between internal pressure and external pressure and from the gas flow effect.

Herstellungs- und anwendungstechnisch ist es zweckmäßig, daß die erfindungsgemäße Anordnung in die Baueinheit der Fördermengen-Steuervorrichtung für das CO2-Gas integriert istFrom the point of view of production and application technology, it is expedient that the arrangement according to the invention is integrated in the structural unit of the delivery quantity control device for the CO 2 gas

Ein nach den Merkmalen der Erfindung ausgestaltetes Ausführungsbeispiel ist anhand der Zeichnung im folgenden näher beschrieben. Es zeigen :

  • Fig. 1 eine schematisiert dargestellte Wasserkarbonisierungseinrichtung für einen Getränkeautomaten,
  • Fig. 2 und
  • Fig. 3 eine vereinfacht dargestellte druckabhängig beeinflußte Fördermengen-Steuervorrichtung für das CO2-Gas mit durch Betriebsgasdruck verschlossener Ventilanordnung und
  • Fig. 4 die Einzelheit dieser Ventilanordnung.
An embodiment designed according to the features of the invention is described in more detail below with reference to the drawing. Show it :
  • 1 is a schematically shown water carbonation device for a vending machine,
  • Fig. 2 and
  • Fig. 3 is a simplified depicted pressure-dependent flow control device for the CO 2 gas with a valve arrangement closed by operating gas pressure and
  • Fig. 4 shows the detail of this valve arrangement.

Ein Getränkeautomat zum Mischen von unterschiedlichen Getränkekonzentraten mit gekühltem CO2-Wasser zu einem Mischgetränk enthält als wesentliche Bestandteile eine Mischrinne 1, in welcher der Mischvorgang eingeleitet bzw. durchgeführt wird, Getränkekonzentrats-Behälter 2, aus denen über Dosiereinrichtungen 3 die Getränkekonzentrate portionsweise der Mischrinne 1 zugeführt werden, und einen Vorratsbehälter 4 für gekühltes CO2-Wasser, welches über ein Ausgabeventil 5 in die Mischrinne bedarfsweise einfließen kann. Die Mischung verläßt die Mischrinne 1 über einen Auslauftrichter 6.A beverage dispenser for mixing different beverage concentrates with chilled CO 2 water to form a mixed beverage contains as essential components a mixing trough 1, in which the mixing process is initiated or carried out, beverage concentrate containers 2, from which the beverage concentrates are added to the mixing trough 1 in portions via metering devices 3 are supplied, and a storage container 4 for cooled CO 2 water, which can flow into the mixing trough as required via a discharge valve 5. The mixture leaves the mixing trough 1 via an outlet funnel 6.

Der CO2-Wasservorrat wird gekühlt durch Kältemittel, welche über eine um den Vorratsbehälter 4 gewickelte Rohrleitung 7 geleitet sind. Ergänzt wird der CO2-Wasservorrat innerhalb des Vorratsbehälters 4 um die über das Ausgabeventil 5 entnommenen Mengen dadurch, daß über eine Rohrleitung 8, gesteuert über ein Ventilsystem 9 Frischwasser zugeführt wird und über eine Rohrleitung 10 aus einem Behälter 11 mit CO2-GasFüllung, gesteuert durch ein Ventilsystem 12, CO2-Gas zugeführt wird.The CO 2 water supply is cooled by refrigerants which are passed through a pipe 7 wound around the storage container 4. The CO 2 water supply within the storage container 4 is supplemented by the quantities withdrawn via the discharge valve 5 by supplying fresh water via a pipeline 8, controlled by a valve system 9, and via a pipeline 10 from a container 11 with CO 2 gas filling, controlled by a valve system 12, CO 2 gas is supplied.

Durch dieses CO2-Gas steht der Innenraum des Vorratsbehälters 4 unter einem gegenüber der Atmosphäre erhöhtem Druck. Dies trägt zur angestrebt guten Karbonisierung des Wassers innerhalb des Vorratsbehälters 4 bei. Dieser Überdruck im Vorratsbehälter 4 wird durch ein Reduzierventil gesteuert, welches den wesentlich höheren Gasdruck innerhalb der Vorratsflasche 11 auf den Betriebsdruck im Vorratsbehälter 4 herabsetzt.As a result of this CO 2 gas, the interior of the storage container 4 is under an increased pressure compared to the atmosphere. This contributes to the desired good carbonation of the water within the storage container 4. This excess pressure in the storage container 4 is controlled by a reducing valve, which reduces the substantially higher gas pressure within the storage bottle 11 to the operating pressure in the storage container 4.

Eine entsprechende Steuereinrichtung zum Beeinflussen eines Flaschen-Rückschlagventils ist durch die Fig. 2 und 3 dargestellt. Der im Vorratsbehälter 4 benötigte Gasdruck wirkt innerhalb einer Kammer 13 dieser Ventilanordnung 12 über einen Kolben 14 gegen die Kraft einer Feder 15. Läßt der Gasdruck innerhalb des Vorratsbehälters 4 und damit in der Ventilkammer 13 nach, so wird der Kolben 14 durch die Kraft der Feder 15 nach unten gedrückt und über den Stößel 16 wird ein nicht dargegstelltes Ventil geöffnet, welches den Gasfluß aus der Vorratsflasche 11 zuläßt bzw. verstärkt zuläßt. Steigt der Gasdruck im Vorratsbehälter 4 und damit in der Ventilkammer 13 wieder an, so hebt dieser den Kolben 14 gegen die Kraft der Feder 15 wieder an und das Gasflaschenventil kann dem Stößel 16 folgend, den CO2-Gasstrom aus der Flasche drosseln bzw. ganz unterbrechen. Diese Anordnung arbeitet unter normalen Umständen solange problemlos und funktionsgerecht, wie genügend Gasdruck in der Vorratsflasche 11 vorhanden ist.A corresponding control device for influencing a bottle check valve is shown by FIGS. 2 and 3. The gas pressure required in the storage container 4 acts within a chamber 13 of this valve arrangement 12 via a piston 14 against the force of a spring 15. If the gas pressure inside the storage container 4 and thus in the valve chamber 13 decreases, the piston 14 becomes by the force of the spring 15 pressed down and over the plunger 16, a valve (not shown) is opened, which permits or increases the gas flow from the storage bottle 11. If the gas pressure in the storage container 4 and thus in the valve chamber 13 rises again, then this raises the piston 14 again against the force of the spring 15 and the gas cylinder valve can follow the plunger 16 to throttle the CO 2 gas flow from the cylinder or completely interrupt. Under normal circumstances, this arrangement works smoothly and functionally as long as there is sufficient gas pressure in the storage bottle 11.

Erreicht der Gasdruck innerhalb der Vorratsflasche 11 jedoch einen Grenzwert, welcher nicht mehr ausreichend ist, den Betriebsdruck innerhalb des Vorratsbehälters 4 und die CO2-Gasversorgung aufrecht zu erhalten, sollte der Bedienungsperson dieser Umstand signalisiert werden. Dazu dient eine zusätzliche, in Fig. 4 im einzelnen dargestelltes Ventil-Verschließorgan 17 innerhalb des Steuerventils 12. Dieses Ventil-Verschließorgan 17 liegt im zum Vorratsbehälter 4 offenen Kanalsystem. Prinzipiell ähnelt es einem Rückschlagventil mit der Besonderheit, daß das Ventil-Schließelement in Schließrichtung durch Gasdruck und entgegen der Schließrichtung durch Federkraft beaufschlagt ist. Das Ventil-Schließelement beinhaltet einen Ventilstößel 18 mit einem Ventilkolben 19, welcher über einen Ring 20 aus elastischem Material gegen einen Ventilsitz 21 des Ventilgehäuses 22 wirkt. Bei genügendem Gasdruck innerhalb der Kammer 23, welcher auch dem Gasdruck im Vorratsbehälter 4 entspricht, wird der Kolben 19 gegen die Kraft einer dagegenwirkenden Feder 24 in der geschlossenen Stellung gehalten. Fällt jedoch der Betriebsdruck innerhalb des Vorratsbehälters 4 und damit innerhalb der Kammer 23 unter einen vorgegebenen und durch die Kraft der Feder 24 repräsentierten Wert ab, so kann der Kolben 19 der Kraft dieser Feder 24 folgen und das Ventil wird geöffnet. Das Restgas kann entweichen und durch die Stellung des Stößels 18 wird angezeigt, daß der Gasdruck im System abgefallen ist.However, if the gas pressure within the storage bottle 11 reaches a limit value which is no longer sufficient to maintain the operating pressure within the storage container 4 and the CO 2 gas supply, this fact should be signaled to the operator. An additional valve closing element 17, shown in detail in FIG. 4, is used for this purpose within the control valve 12. This valve closing element gan 17 lies in the channel system open to the reservoir 4. In principle, it is similar to a check valve with the special feature that the valve closing element is acted upon by gas pressure in the closing direction and by spring force against the closing direction. The valve closing element includes a valve tappet 18 with a valve piston 19, which acts against a valve seat 21 of the valve housing 22 via a ring 20 made of elastic material. With sufficient gas pressure within the chamber 23, which also corresponds to the gas pressure in the reservoir 4, the piston 19 is held in the closed position against the force of an opposing spring 24. However, if the operating pressure within the storage container 4 and thus within the chamber 23 falls below a predetermined value and represented by the force of the spring 24, the piston 19 can follow the force of this spring 24 and the valve is opened. The residual gas can escape and the position of the plunger 18 indicates that the gas pressure in the system has dropped.

Das Gas entweicht über Spalte 25, 26, welche zwischen dem Kolben 19 und dem Stößel 18 einerseits und dem Ventilgehäuse 22 andererseits gebildet sind. Zumindest eine dieser Spalte 25 bzw. 26 wirkt gleichzeitig als Drosselventil, so daß in die Kammer 23 geleiteter höherer Gasdruck das Ventil wieder verschließt.The gas escapes through gaps 25, 26 which are formed between the piston 19 and the plunger 18 on the one hand and the valve housing 22 on the other. At least one of these gaps 25 and 26 simultaneously acts as a throttle valve, so that higher gas pressure passed into the chamber 23 closes the valve again.

Dieses Ventit-Verschiießorgan eignet sich aber auch dazu, - nachdem die Gaszufuhr aus dem Vorratsbehälter 11 unterbrochen ist - den Vorratsbehälter 4 zu « entlüften ». Dies kann beispielsweise dann erforderlich sein, wenn eine Störung im Wasserzulauf stattfinder oder stattgefunden hat. Die Spalte 25 und 26 des Ventil-Verschließorgan 17 sind derart bemessen, daß der der Einströmgeschwindigkeit des Wassers in den Vorratsbehälter 4 entsprechende Gasstrom durch diese Spalte derart ungehindert ist, daß sich in der Kammer 23 kein Gasdruck aufbaut, welcher in der Lage ist, das Ventil entgegen der Kraft der Feder 24 zu schließen. Somit ist es auch unproblematisch, den Vorratsbehälter 4 neu mit Wasser aufzufüllen bzw. nach einer Unterbrechung bzw. Störung wieder aufzufüllen oder nachzufüllen. Im Bedarfsfall kann durch eine entsprechende Stellschraube, über welche sich die Feder 24 gegenüber dem Gehäuse 22 des Ventil-Verschließorgans 17 abstützt, die Rückstellkraft der Feder verändert werden.However, this valve closing member is also suitable for "venting" the storage container 4 after the gas supply from the storage container 11 has been interrupted. This can be necessary, for example, if a disturbance in the water supply has taken place or has taken place. The columns 25 and 26 of the valve closing member 17 are dimensioned such that the gas flow corresponding to the inflow speed of the water into the storage container 4 is so unhindered by this column that no gas pressure builds up in the chamber 23 which is capable of that Close valve against the force of spring 24. Thus, it is also unproblematic to refill the reservoir 4 with water or to refill or refill it after an interruption or malfunction. If necessary, the restoring force of the spring can be changed by means of a corresponding adjusting screw, by means of which the spring 24 is supported with respect to the housing 22 of the valve closing member 17.

Claims (9)

1. Arrangement, for the carbonation of water under pressure, consisting of a preferably cooled storage container (4), into which water up to a predetermined level as well as carbon dioxide gas are in case of need feedable by way of a pressure- reducing valve arrangement (12) and a feed duct (10) and out of which the carbonated water is withdrawable by way of a closure and pressure- reducing valve (5), characterised thereby, that a valve-closing organ (17), which by gas pressure in the storage container (4) greater than the external atmosphere holds an exit opening closed against a restoring force, is arranged in the carbon dioxide gas region following the pressure-reducing valve arrangement (12) and that the restoring force acting on the valve-closing organ (17) is equal to the preset smallest permissible operating pressure in the storage container (4).
2. Arrangement according to claim 1, characterised thereby, that a spring element (24) is arranged for making the restoring force available for the valve-closing organ (17).
3. Arrangement according to one of the claims 1 and 2, characterised thereby, that a flow throttle (25 and/or 26) is arranged in the gas exit opening.
4. Arrangement according to one of the claims 1 to 3, characterised thereby, that a part (18), which is mechanically connected with the valve-closing organ (17), is led outwardly therefrom.
5. Arrangement according to one of the claims 1 to 4, characterised thereby, that the valve-closing organ (17) is constructed as plunger (18) with a disc-shaped valve plate (19), which is axially displaceable and stands opposite a valve seat (21) to be closed of a valve housing (22).
6. Arrangement according to claim 5, characterised thereby, that a sealing ring (20) of yieldingly deformable material is arranged between the valve plate (19) and the valve seat (21).
7. Arrangement according to one of the claims 5 and 6, characterised thereby, that the valve seat (21) is constructed to be conical.
8. Arrangement according to one of the claims 5 to 7, characterised thereby, that the flow throttle is formed by a rim gap (25) between the valve plate (19) and a guide bore in the housing (22).
9. Arrangement according to one of the claims 1 to 8, characterised thereby, that the valve-closing organ (17) is integrated in a pressure-reducing valve arrangement (12) in the gas feed.
EP85108250A 1984-08-22 1985-07-03 Device for the carbonating of water Expired - Lifetime EP0173031B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85108250T ATE49136T1 (en) 1984-08-22 1985-07-03 ARRANGEMENT FOR CARBONIZING WATER.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19843430950 DE3430950A1 (en) 1984-08-22 1984-08-22 ARRANGEMENT FOR CARBONIZING WATER
DE3430950 1984-08-22

Publications (3)

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EP0173031A2 EP0173031A2 (en) 1986-03-05
EP0173031A3 EP0173031A3 (en) 1987-04-01
EP0173031B1 true EP0173031B1 (en) 1990-01-03

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ID=6243672

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Application Number Title Priority Date Filing Date
EP85108250A Expired - Lifetime EP0173031B1 (en) 1984-08-22 1985-07-03 Device for the carbonating of water

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US (1) US4656933A (en)
EP (1) EP0173031B1 (en)
JP (1) JPS61197025A (en)
AT (1) ATE49136T1 (en)
CA (1) CA1253793A (en)
DE (2) DE3430950A1 (en)

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US6354341B1 (en) 1999-11-10 2002-03-12 Shurflo Pump Manufacturing Co., Inc. Rapid comestible fluid dispensing apparatus and method
US6354342B1 (en) 1999-11-10 2002-03-12 Shurflo Pump Manufacturing Company, Inc. Hand-held rapid dispensing apparatus and method
US6360556B1 (en) 1999-11-10 2002-03-26 Shurflo Pump Manufacturing Company, Inc. Apparatus and method for controlling fluid delivery temperature in a dispensing apparatus
US6443335B1 (en) 1999-11-10 2002-09-03 Shurflo Pump Manufacturing Company, Inc. Rapid comestible fluid dispensing apparatus and method employing a diffuser
US6449970B1 (en) 1999-11-10 2002-09-17 Shurflo Pump Manufacturing Company, Inc. Refrigeration apparatus and method for a fluid dispensing device

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US4950431A (en) * 1989-06-28 1990-08-21 The Coca-Cola Company Motorless batch carbonator
US5071595A (en) * 1990-08-03 1991-12-10 Ebtech, Inc. Water carbonator system
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US7717294B2 (en) * 2005-06-20 2010-05-18 South-Tek Systems Beverage dispensing gas consumption detection with alarm and backup operation
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KR102104539B1 (en) * 2013-02-28 2020-04-27 삼성전자주식회사 Refrigerator Having Apparatus For Producing Carbonated Water

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Publication number Priority date Publication date Assignee Title
US6354341B1 (en) 1999-11-10 2002-03-12 Shurflo Pump Manufacturing Co., Inc. Rapid comestible fluid dispensing apparatus and method
US6354342B1 (en) 1999-11-10 2002-03-12 Shurflo Pump Manufacturing Company, Inc. Hand-held rapid dispensing apparatus and method
US6360556B1 (en) 1999-11-10 2002-03-26 Shurflo Pump Manufacturing Company, Inc. Apparatus and method for controlling fluid delivery temperature in a dispensing apparatus
US6443335B1 (en) 1999-11-10 2002-09-03 Shurflo Pump Manufacturing Company, Inc. Rapid comestible fluid dispensing apparatus and method employing a diffuser
US6449970B1 (en) 1999-11-10 2002-09-17 Shurflo Pump Manufacturing Company, Inc. Refrigeration apparatus and method for a fluid dispensing device
US6695168B2 (en) 1999-11-10 2004-02-24 Shurflo Pump Mfg. Co., Inc. Comestible fluid dispensing apparatus and method

Also Published As

Publication number Publication date
CA1253793A (en) 1989-05-09
EP0173031A3 (en) 1987-04-01
JPH0242532B2 (en) 1990-09-25
DE3575083D1 (en) 1990-02-08
DE3430950C2 (en) 1987-06-04
DE3430950A1 (en) 1986-03-06
EP0173031A2 (en) 1986-03-05
ATE49136T1 (en) 1990-01-15
JPS61197025A (en) 1986-09-01
US4656933A (en) 1987-04-14

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