EP3661870B1 - Installation de tirage de boissons et procédé destiné à cette installation - Google Patents

Installation de tirage de boissons et procédé destiné à cette installation Download PDF

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Publication number
EP3661870B1
EP3661870B1 EP18746193.4A EP18746193A EP3661870B1 EP 3661870 B1 EP3661870 B1 EP 3661870B1 EP 18746193 A EP18746193 A EP 18746193A EP 3661870 B1 EP3661870 B1 EP 3661870B1
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EP
European Patent Office
Prior art keywords
plant
pipe
pressure
water
tap
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EP18746193.4A
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German (de)
English (en)
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EP3661870A1 (fr
Inventor
Luca QUAGLIA
Marco COLLINI
Giorgio SCUTTARI
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D1/00—Apparatus or devices for dispensing beverages on draught
    • B67D1/07—Cleaning beverage-dispensing apparatus
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D1/00—Apparatus or devices for dispensing beverages on draught
    • B67D1/08—Details
    • B67D1/0829—Keg connection means
    • B67D1/0831—Keg connection means combined with valves
    • B67D1/0832—Keg connection means combined with valves with two valves disposed concentrically
    • B67D1/0834—Keg connection means combined with valves with two valves disposed concentrically and having means for admitting a cleaning fluid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D1/00—Apparatus or devices for dispensing beverages on draught
    • B67D1/08—Details
    • B67D1/12—Flow or pressure control devices or systems, e.g. valves, gas pressure control, level control in storage containers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D1/00—Apparatus or devices for dispensing beverages on draught
    • B67D1/08—Details
    • B67D1/12—Flow or pressure control devices or systems, e.g. valves, gas pressure control, level control in storage containers
    • B67D1/1247—Means for detecting the presence or absence of liquid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D1/00—Apparatus or devices for dispensing beverages on draught
    • B67D1/08—Details
    • B67D1/12—Flow or pressure control devices or systems, e.g. valves, gas pressure control, level control in storage containers
    • B67D1/1252—Gas pressure control means, e.g. for maintaining proper carbonation

Definitions

  • the present invention relates to a plant for tapping beverages, provided with means for managing a semi-automatic washing of the pipes which contain beverages to be dispensed on tap, typically represented by beer, as well as a process for automatic treatment of the tapping pipes that utilises the plant.
  • the operator when the empty status of the container in use is signalled, the operator can intervene and carry out the washing operations, on termination of which the empty container is replaced with a new and loaded one.
  • the pulse signalling the empty status of the container in use is sent to a control unit which automatically starts the washing operations, on termination of which the empty container is replaced with a new and loaded one.
  • the present invention is advantageously applied in the sector of food distribution, especially in the sector of production of beverages served in businesses, such as bars, restaurants, pizzerias, or other businesses in which drinks are sold, in particular pressurised drinks, such as beer or the like.
  • beer passing through the tapping plant pipes that are not subject at each change of keg to correct treatment will, due to this bacteria, take on an unpleasant taste and a smell that are immediately noted by even an inexpert consumer; furthermore the micro-fermentation makes the beer cloudy.
  • the beer kegs are connected to a distribution plant associated to CO 2 gas cylinders loaded to about 50 bar via static pressure reducers and a water circuit for manual washing of the supply pipes which terminate with the classic bar-mounted dispensing taps.
  • beer kegs are generally stored in store rooms where, very often, the plants are kept together with coolers for the purposes of refrigeration.
  • the environmental conditions of the rooms in which the beer kegs are positioned can change both over the short term and the long term and in the majority of cases it has been found that these rooms are not treated in respect of the variability of environmental conditions; this leads to faults which compromise the functioning of the dispensers.
  • the technology used at present comprises circuits and devices that require the direct intervention of the manager to replace the keg, the washing of the pipes and the resetting of the dispenser circuit.
  • This system further required a nozzle plug on the keg that was designed and realised specifically, which had a further effect on costs of a product already excessively expensive.
  • a second document illustrated in patent application No. WO2015/015275A1 , describes a control system of the dispensing flow based on a compensator located between the cooler and the tap, with the main objective of controlling the dispensing pressure on tap based on the environmental parameters, thus excluding any automatic mechanism enabling the keg change combined with a washing of the plant.
  • the present invention discloses a plant for tapping beverages such as beer or the like that is able to obviate or at least drastically reduce the above-described drawbacks.
  • the invention in particular provides a plant for tapping beverages such as beer or the like, provided with semi-automatic washing means, during the keg-changing steps, able to increase the efficiency of the system, guaranteeing a higher quality of the product on tap and, consequently, an increase in the performance of the business which acquires value in terms of reliability and quality.
  • the plant according to the invention is able to guarantee a time saving for the manager and a significant increase in the hygiene conditions of the plant itself.
  • the plant can significantly reduce maintenance operations and may even not necessarily require the replacement of the keg fittings, as the ones already present can be used.
  • the plant of the invention also guarantees a very much reduced energy consumption, around 3 Wh for an annual cost of about € 5.00.
  • this plant as well as the traditional hydraulic components, comprises four normally-closed solenoid valves which manage the flows of liquids and gas.
  • the flows are conveyed by pressure difference between two points involved in the switching.
  • the valves are activated/deactivated by a programmed logic control system.
  • the system is equipped with a keypad membrane associated to an alphanumeric display for example of the four row/twenty column type, more than sufficient to give indications on the status of the plant.
  • a graphic display is positioned on the tapping column to enable the manager to monitor the situation.
  • 10 generally indicates the electrical-hydraulic diagram of the plant according to the invention, which comprises some major components which in part are already used for tapping the beer.
  • Reference numerals 11 and 12 denote two kegs containing the beverage, normally beer, the first of which is connected to the plant and therefore in use and thus designed to be emptied, the second is new, completely loaded and ready to replace the keg 11 at the moment in which it is empty.
  • a nozzle plug 13 is inserted in the keg 11, in which a first inlet pipe 14 is inserted for injection of CO 2 coming from a cylinder 15, a second pipe 16 which dispenses the beverage towards a tap 17, and a third pipe 18 which is connected to a washing tap 19 of washing water which at the appropriate time determines injection of washing water into the plant through a pipe 20.
  • the hydraulic plant further comprises a pressure sensor 21 located on the line 22 of the CO 2 cylinder 15 to which a pressure reducer 23 located on the same line 22 is also associated, a relief valve 24 positioned on the line 14 of the CO 2 which is injected into the keg 11, as well as possibly a litre counter 25 positioned on the pipe 16 which enables dispensing the beverage from the tap 17.
  • the plant comprises four normally-closed solenoid valves 26, 27, 28 and 29 which manage the flows of liquids and gas, the first three of which are located along the pipes 14 and 22 of the CO 2 , dispensed by the cylinder 15, while the fourth valve 29 is positioned along the pipe 18 and 20 from which washing water coming from the tap 19 is injected into the plant.
  • valve 26 is dedicated to the charging gas CO 2
  • valve 27 is dedicated to the discharging of the gas when the keg is empty
  • valve 28 is an overpressure discharge valve of the keg 11
  • the valve 29 is for starting the washing operation.
  • valve 28 is apt for blocking the outlet of the beer from the keg 11 towards the valves 26 and 27, which in a traditional plant is obtained via a check valve located on the gas inlet positioned on the nozzle plug 13.
  • valve 28 which enables discharging the pressure internally of the keg once all the beer has been dispensed and before activating the washing mechanism.
  • the valve 28 therefore has two purposes:
  • control unit 30 which in the case of automatic management of the plant comprises a control logic represented by a PLC or another like management unit, including of a digital type with one or more processors.
  • control logic 30 is connected to the valve 26 via the connection 40, to the valve 27 via the connection 41, to the valve 28 via the connection 42 and to the valve 29 via the connection 43.
  • One of the electrical connections is further dedicated to the control of a liquid sensor 31, normally a colour sensor, i.e. a switch usable in a case of manual control, located along the conveying line 16 of the beverage towards the tap 17.
  • a colour sensor i.e. a switch usable in a case of manual control
  • connection 45 is dedicated to the sensor 25 which is not a button but only a litre counter and not part of the washing plant but only to give the manager the possibility of seeing the residual quantity of beer inside the keg 11, while the connection 46 is dedicated to the pressure sensor 21.
  • a check valve 35 located on the water pipe 20 is provided, which prevents the flow of the beverage towards the municipal water supply in a case of overpressure.
  • the plant 10 comprises further accessories which also enable controlling parameters external of the plant, i.e. at least an ambient temperature sensor 32, at least a cooler temperature sensor 33 and at least a cooler actuator relay 34.
  • reference numeral 13 denotes in its entirety the nozzle plug applicable on the beer keg 11.
  • the nozzle comprises 3 sleeves; the first, indicated by reference numeral 50, represents the inlet of the CO 2 flow coming from the cylinder 15 via the pipes 22 and 14, the second 51 is connected to the water connection 19 via the pipe 18 and the third sleeve denoted by reference numeral 52 is connected to the tap 17 via the pipe 16.
  • the flow exiting from the sleeve 52, in the normal dispensing operation is beer or another beverage as since the water pipe 18 is closed by the valve 29 the pressure in the sleeve 51 is zero.
  • the pipe 14 Upon reaching the empty status of the keg 11 the pipe 14 is opened by means of the valves 28 and 27 which zero the pressure in the sleeve 52. At this moment the valve 29 is opened for injection of water into the plant.
  • the sleeve 52 is at zero pressure while the sleeve 51 is at a higher pressure, being equal to the municipal water system pressure.
  • This pressure difference enables the water to enter automatically into the sleeve 51, to exit from the sleeve 52, to transit in the pipe 16 and to exit through the tap 17, thus carrying out the washing of the plant.
  • the system is equipped with a keypad membrane associated to an alphanumeric display for example of the four row/twenty column type, and is sufficient to enter work parameters and control the information on the status of the plant.
  • the plant can comprise a graphic display positioned on the tapping column to enable the manager to monitor.
  • the pressure sensor 21 is located downstream of the valve 26 and monitors the pressure in the keg.
  • the control logic or control unit 30 of the circuit regulates the pressure on the basis of characteristics of the plant defined during the installation step.
  • the work cycle is started which leads to the opening of the valve 26, which enables dispensing the CO 2 from the cylinder 15 up to reaching the defined pressure value, controlled by the pressure sensor 21.
  • the system activates the washing status, in which the valve 27 closes at a pressure of around 0.5 bar and the gas injection valve 28 also closes, while the water pipe valve 29 is opened to enable water to flow into the plant and perform the washing cycle.
  • the barman is advised that the keg is empty and by opening the tap 17 he or she can still obtain about 1.5 litres of beer on the basis of the length of the plant, before the water begins to flow out.
  • valve 28 has the aim of preventing overpressure in a case of a connection with an already pressurised keg.
  • the invention has a characteristic that makes it unique in its type: the sensor 31 is not in direct contact with the liquid as it is made up of a housing, specifically designed, in which the transparent pipe 16 transits.
  • the sensor 31 is arranged in the environs of the pipe 16 so as to sense the colour of the liquid and emit an RGB encoding processed by a specific algorithm being run, so as to recognise the type of liquid which is crossing the pipe, the beer or the foam, or the water or, indeed, if there is an absence of liquid.
  • a self-detecting procedure is also included of the use parameters enabling calibration in the specific ambient conditions if the programmed procedures did not perform the right measurements.
  • the plant according to the invention advantageously enables the user a short-term return of the investment for installation of the plant, which can be done over a short time, from savings in the amount of product, the reduction of the reset time for the plant and from a probable and hoped-for increase in sales due to the improved quality of the product.
  • the described system further comprises optimal plant hygiene conditions as pipes can be washed with water when the plant is not in use which prevents the formation of bacteria in the pipes when the plant is at standstill.
  • system can also be used in a plant with two or more branches in which the following components are used once only: check valve 35, pressure reducer 23, gas cylinder 15, temperature sensors 32 and 33, cooler actuator 34, pipes 20 and 26.
  • the management system i.e. the control logic of the plant, can be set to verify and authorise the use of the product applied, in respect of any commercial agreements, and can also be set for remote control via special applications.
  • the possible application for the system management can further be used for remote updates of the management circuit software, and access can be afforded for data on the status of the plant and operating logs.
  • the possible application for system management might instantaneously advise on malfunctioning issues, or control consumptions, and it would even be possible for it to be connected to an energy system backup in a case in which an electrical fault on the supply network were to occur.
  • FIG. 2 illustrates a plant according to the invention realised for a manual use of the system.
  • the control panel of the preceding version is replaced by a power socket 60 and the electrical connections that lead to the valves 26, 27, 28 and 29 are respectively denoted by reference numerals 61, 62, 63 and 64.
  • the washing could be carried out by replacing the valves and the controls thereof with manual taps, which, to carry out the wash, must be open or closed, acting on the same logic for the automatic plant on the switches 61, 62, 63 and 64 connected to the respective valves 26, 27, 28 and 29.

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  • Devices For Dispensing Beverages (AREA)

Claims (10)

  1. Une installation pour tirer des boissons comprenant des moyens pour le traitement automatique des tuyaux de tirage, ladite installation comprenant :
    a) un récipient sous pression (11) contenant une boisson ;
    b) un bouchon (13), insérable sur ledit récipient sous pression (11), qui est relié à un premier tuyau (14) pour l'injection de gaz provenant d'une source (15), à un deuxième tuyau (16) qui distribue la boisson vers un robinet (17), et à un troisième tuyau (18, 20) relié à une source d'eau municipale (19) qui détermine de manière sélective l'injection d'eau de lavage dans l'installation ;
    c) un réducteur de pression (23) positionné sur le quatrième tuyau (22) relié au premier tuyau (14) de ladite source de gaz (15) ;
    d) une soupape de sécurité (24) placée sur le premier tuyau (14) dudit gaz injecté dans ledit récipient sous pression (11) ; ladite installation comprenant en outre au moins un capteur de pression (21) positionné sur un quatrième tuyau (22) relié au premier tuyau (14) de ladite source de gaz (15), et en ce que lesdits premier et quatrième tuyaux (14, 22), qui relient ladite source de gaz (15) audit récipient sous pression (11), sont interceptés par des première (26), deuxième (27) et troisième (28) électrovannes respectives qui sont reliées électriquement à une logique de commande (30), ou à une prise de courant (60), pour déterminer une charge et/ou une décharge de la pression dudit gaz sur la base des conditions de distribution de la boisson ou des conditions de lavage du circuit, et en ce que ledit troisième tuyau (18, 20) relié à une source d'eau municipale (19) est interceptée par une quatrième électrovanne (29) à son tour reliée électriquement à ladite logique de commande (30), ou à une prise de courant (60) pour permettre ou interrompre une arrivée d'eau dans les tuyaux de l'installation.
  2. Installation pour le tirage de boissons selon la revendication 1, caractérisée en ce que ladite vanne (26) commande l'ouverture ou la fermeture de l'entrée de gaz provenant de ladite source (15), en ce que ladite vanne (27) commande la décharge de gaz avec le récipient sous pression (11) vide, et en ce que ladite vanne (28) commande la décharge de la surpression du récipient sous pression (11).
  3. Installation pour le tirage de boissons selon l'une quelconque des revendications précédentes, caractérisée en ce que l'une des connexions électriques (44) est dédiée à la commande d'un capteur de liquide (31), c'est-à-dire un interrupteur utilisable dans un cas de commande manuelle, situé le long de la ligne de transport (16) de la boisson vers le robinet (17).
  4. Installation pour le tirage de boissons selon la revendication 3, caractérisée en ce que ledit capteur de liquide (31) comprend un capteur de couleur approprié pour identifier si dans la conduite de distribution (16) dirigée vers ledit robinet (17) il y a ou non une entrée de boisson de manière à signaler un état vide au système.
  5. Installation pour le tirage de boissons selon l'une quelconque des revendications 3 et 4, caractérisée en ce que ledit capteur de liquide (31) comprenant un capteur de couleur est capable de signaler l'état vide de boisson au système et, dans un cas de gestion automatique, une initiation du cycle de lavage.
  6. Installation pour le tirage de boissons selon l'une quelconque des revendications précédentes, caractérisée en ce que ledit bouchon (13) applicable sur le fût de bière (11) comprend trois manchons de raccordement :
    a) un premier manchon de gaz (50) pour le gaz provenant de la source de gaz (15) par les premier et quatrième tuyaux (22, 14) ;
    b) un deuxième manchon (51) relié au raccord d'eau (19) par le troisième tuyau (18) ;
    c) un troisième manchon (52) relié au robinet (17) par le deuxième tuyau (16).
  7. Procédé de nettoyage d'une installation de tirage de boissons selon l'une quelconque des revendications 1 à 6, caractérisé en ce que l'état vide de boisson dans ledit récipient sous pression (11), signalé par ledit capteur de liquide (31), qui intercepte le passage de celle-ci par le deuxième tuyau (16), détermine un lancement des opérations suivantes :
    - envoyer un signal d'état vide de boisson à un panneau de commande central qui active un état de prélavage où la première vanne (26) de distribution de gaz est fermée, tandis que lesdites deuxième et troisième vannes (27, 28) sont ouvertes pour la décharge de la pression dans ledit récipient sous pression (11) ;
    - l'activation de l'état de lavage lorsque le capteur de pression (21) a détecté une pression inférieure à une pression du réseau d'eau municipal, et pendant cette étape, la deuxième vanne de gaz en excès (27) se ferme à une pression d'environ 0,5 bar et la troisième vanne d'injection de gaz (28) se ferme également, tandis que la quatrième vanne de la conduite d'eau (29) est ouverte pour permettre à l'eau de s'écouler dans l'installation et d'effectuer le cycle de lavage ;
    - l'arrivée de l'eau depuis le manchon (51) relié au branchement d'eau par le troisième tuyau (18) et la sortie depuis le manchon adjacent (52) relié au robinet (17) par le deuxième tuyau (16), de sorte que l'eau sort du robinet en nettoyant les tuyaux ;
    - l'ouverture du robinet (17) qui contient encore les derniers résidus de boisson, sur la base d'une longueur de l'installation, avant que l'eau ne commence à couler ;
    - le remplacement du récipient sous pression vide (11) par un nouveau récipient complètement chargé, ce qui permet de redémarrer le cycle en quelques instants ;
    - le redémarrage du cycle de sorte qu'après une quantité résiduelle d'eau, la boisson arrive au robinet, la boisson pouvant être distribuée par le deuxième tuyau (16) qui relie le conteneur sous pression (11) au robinet (17), lequel robinet (17) est maintenant entièrement lavé.
  8. Procédé selon la revendication 7, caractérisé en ce que l'écoulement sortant du troisième manchon (52) dudit bouchon (13) applicable sur le fût (11) pendant l'opération de distribution normale est représenté par la boisson qui peut s'écouler vers le robinet (17) lorsque le troisième tuyau de lavage (18) est fermé par la quatrième vanne (29), la pression dans le deuxième manchon (51) est nulle et le gaz provenant de la source de gaz (15) entre par le premier manchon (50).
  9. Procédé selon l'une quelconque des revendications 7 et 8, caractérisé en ce que lorsque l'état vide du récipient sous pression (11) est atteint, la conduite (14) est ouverte par une commande envoyée aux vannes (28, 27), lesquelles vannes (28, 27) remettent à zéro la pression au niveau du troisième manchon (52), et à ce moment la vanne (29) est ouverte pour l'injection d'eau dans l'installation.
  10. Procédé selon l'une quelconque des revendications 7 à 9, caractérisé en ce que, pendant l'étape de lavage, le troisième manchon (52) de distribution de boisson est à une pression nulle tandis que le deuxième manchon (51) d'entrée d'eau est à une pression plus élevée, la pression plus élevée étant égale à la pression du système municipal d'eau et en ce que cette différence de pression permet à l'eau d'entrer automatiquement dans le deuxième manchon (51), de sortir du troisième manchon (52), de transiter dans le tuyau (16) et de sortir par le robinet (17), effectuant ainsi le lavage de l'installation.
EP18746193.4A 2017-07-31 2018-07-27 Installation de tirage de boissons et procédé destiné à cette installation Active EP3661870B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT102017000087819A IT201700087819A1 (it) 2017-07-31 2017-07-31 Impianto per la spillatura di bevande e procedimento per il trattamento dei condotti di spillatura che si avvale di tale impianto
PCT/EP2018/070431 WO2019025309A1 (fr) 2017-07-31 2018-07-27 Installation de tirage de boissons et procédé destiné à cette installation

Publications (2)

Publication Number Publication Date
EP3661870A1 EP3661870A1 (fr) 2020-06-10
EP3661870B1 true EP3661870B1 (fr) 2020-09-09

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Application Number Title Priority Date Filing Date
EP18746193.4A Active EP3661870B1 (fr) 2017-07-31 2018-07-27 Installation de tirage de boissons et procédé destiné à cette installation

Country Status (4)

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EP (1) EP3661870B1 (fr)
ES (1) ES2828093T3 (fr)
IT (1) IT201700087819A1 (fr)
WO (1) WO2019025309A1 (fr)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1197528B (it) 1986-10-30 1988-11-30 O D L Srl Sistema di lavaggio per impianti di spillatura a bilanciamento di pressione automatico con possibilita' di cambio semiautomatico dei fusti
DE29704794U1 (de) * 1997-03-15 1997-04-30 Quadis Thüringen GmbH, 77815 Bühl Anordnung zur automatischen Reinigung von Zapfhahn, Getränkeleitung und Zapfkopf in Getränke-, insbesondere Bierzapfanlagen
GB2421492A (en) * 2004-12-23 2006-06-28 Tom Oswald Removing fluid from a line with negative pressure.
GB2451471A (en) * 2007-07-31 2009-02-04 Alumasc Dispense Ltd Beverage dispensing apparatus
ITMI20131278A1 (it) 2013-07-30 2015-01-31 Odl Srl Sistema di controllo della spillatura di bevande gassate e non
GB201417598D0 (en) * 2014-10-04 2014-11-19 Phoenix Abc Ltd Beverage line cleaning method and system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

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Publication number Publication date
WO2019025309A1 (fr) 2019-02-07
ES2828093T3 (es) 2021-05-25
IT201700087819A1 (it) 2019-01-31
EP3661870A1 (fr) 2020-06-10

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