EP0509602A1 - Getränkeausgabevorrichtung - Google Patents

Getränkeausgabevorrichtung Download PDF

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Publication number
EP0509602A1
EP0509602A1 EP92201055A EP92201055A EP0509602A1 EP 0509602 A1 EP0509602 A1 EP 0509602A1 EP 92201055 A EP92201055 A EP 92201055A EP 92201055 A EP92201055 A EP 92201055A EP 0509602 A1 EP0509602 A1 EP 0509602A1
Authority
EP
European Patent Office
Prior art keywords
machine
syrup
water
sensor
pump
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP92201055A
Other languages
English (en)
French (fr)
Inventor
Giancarlo Ugolini
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.)
Ugolini SpA
Original Assignee
Ugolini SpA
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 Ugolini SpA filed Critical Ugolini SpA
Publication of EP0509602A1 publication Critical patent/EP0509602A1/de
Withdrawn legal-status Critical Current

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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
    • B67D1/08—Details
    • B67D1/12—Flow or pressure control devices or systems, e.g. valves, gas pressure control, level control in storage containers
    • B67D1/1202—Flow control, e.g. for controlling total amount or mixture ratio of liquids to be dispensed
    • B67D1/1234—Flow control, e.g. for controlling total amount or mixture ratio of liquids to be dispensed to determine the total amount
    • 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
    • B67D1/0015—Apparatus or devices for dispensing beverages on draught the beverage being prepared by mixing at least two liquid components
    • B67D1/0021—Apparatus or devices for dispensing beverages on draught the beverage being prepared by mixing at least two liquid components the components being mixed at the time of dispensing, i.e. post-mix dispensers
    • B67D1/0022—Apparatus or devices for dispensing beverages on draught the beverage being prepared by mixing at least two liquid components the components being mixed at the time of dispensing, i.e. post-mix dispensers the apparatus comprising means for automatically controlling the amount to be dispensed
    • B67D1/0027—Apparatus or devices for dispensing beverages on draught the beverage being prepared by mixing at least two liquid components the components being mixed at the time of dispensing, i.e. post-mix dispensers the apparatus comprising means for automatically controlling the amount to be dispensed control of the amount of one component, the amount of the other components(s) being dependent on that control
    • B67D1/0029—Apparatus or devices for dispensing beverages on draught the beverage being prepared by mixing at least two liquid components the components being mixed at the time of dispensing, i.e. post-mix dispensers the apparatus comprising means for automatically controlling the amount to be dispensed control of the amount of one component, the amount of the other components(s) being dependent on that control based on volumetric dosing
    • B67D1/0032—Apparatus or devices for dispensing beverages on draught the beverage being prepared by mixing at least two liquid components the components being mixed at the time of dispensing, i.e. post-mix dispensers the apparatus comprising means for automatically controlling the amount to be dispensed control of the amount of one component, the amount of the other components(s) being dependent on that control based on volumetric dosing using flow-rate sensors
    • 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
    • B67D1/1202—Flow control, e.g. for controlling total amount or mixture ratio of liquids to be dispensed
    • B67D1/1204—Flow control, e.g. for controlling total amount or mixture ratio of liquids to be dispensed for ratio control purposes
    • B67D1/1211—Flow rate sensor
    • B67D1/122—Flow rate sensor modulating a pumping rate
    • 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
    • B67D1/1284—Ratio control
    • B67D1/1286—Ratio control by mechanical construction
    • B67D1/1293—Means for changing the ratio by acting on commands
    • 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
    • B67D2210/00—Indexing scheme relating to aspects and details of apparatus or devices for dispensing beverages on draught or for controlling flow of liquids under gravity from storage containers for dispensing purposes
    • B67D2210/00028—Constructional details
    • B67D2210/00099—Temperature control
    • B67D2210/00104—Cooling only

Definitions

  • This invention relates to a drink dispensing machine.
  • Machines for dispensing drinks are known, the drink being prepared during withdrawal by mixing, within the delivery tap, mains water with syrup from a container in a predetermined mixing ratio to give the dispensed drink the required sugar concentration, which has to he maintained with time independently of the quantity withdrawn to ensure, within narrow tolerances, that the drink possesses the chemical and organoleptic characteristics established by the producer and by law.
  • a given syrup of determined characteristics has to be diluted with a predetermined quantity of water to obtain a final product having the optimum organoleptic characteristics established by the producer and the chemical characteristics prescribed by law.
  • Some manufacturers use the first method, by varying the syrup pump r.p.m. and considering the water throughput constant.
  • Other manufacturers use the second method, by seeking to maintain the syrup pump r.p.m. constant and adjusting the water control devices to obtain the required flow rate.
  • the object of the present invention is to solve the problems of the known art by providing a machine in which the usual mains water flow variations in no way influence the final water-syrup mixing ratio.
  • a drink dispensing machine in which the drink consists of a mixture of syrup and water formed during its withdrawal within a tap of said machine, said syrup originating from a vessel/container by the action of a pump, and said water being fed from a mains system of substantially variable flow characteristics via a delivery valve, characterised in that said machine comprises sensor means for measuring the flow rate of the water fed from said mains system and means for setting a syrup-water dilution ratio, said means being connected to an electronic device for controlling the speed of said syrup feed pump such as to reduce or increase the pump speed in accordance with the water flow rate reductions or increases measured by said sensor means, to maintain said drink dilution ratio constant.
  • said electronic control device is further connected to a device for measuring the rotation speed of said syrup feed pump, said electronic control device being arranged to use measurements made by said rotation speed measuring device to effect feedback regulation of the rotation speed of said syrup feed pump.
  • said sensor means for measuring the flow rate of the water fed by said mains system consist of a flow meter comprising a impeller, permanent magnets arranged at the ends of each blade of said impeller and a first magnetic Hall effect sensor.
  • said device for measuring the rotation speed of said syrup feed pump consists of a perforated disc fixed onto the shaft of said pump and associated with a photocoupler.
  • said pump which feeds the syrup from said vessel/container is a peristaltic pump which acts on a flexible discharge tube connected at one end to said vessel/container and at the other end to said tap.
  • the reference numeral 10 indicates a compressor for compressing the refrigerant fluid of the refrigeration cycle.
  • the compressor 10 is connected by a pipe 11 to the inlet of a condenser 12 cooled by a fan 13.
  • the outlet of the condenser 12 is connected via a filter 14 and a pipe 15 to two capillary tubes 16 and 17 leading to the inlets of two evaporators indicated by 18 and 19 respectively.
  • the evaporator 18 is located within a heat exchanger 20 of the fluid-fluid type without countercurrent contact.
  • the refrigerant fluid cools within the heat exchanger 20 the water originating from a pipe 21 which is connected to the water mains system, not shown.
  • the flow meter 22 comprises an impeller 25, a magnetic sensor 26 and a plurality of permanent magnets 27.
  • Each permanent magnet of the plurality 27 can be fixed to the end of each blade of the impeller 25, as shown in the preferred embodiment of the present invention.
  • both the impeller and the permanent magnets can be provided in other arrangements.
  • Said impeller 25 rotates at an angular speed directly proportional to the rate of water flow through the pipe 21, with the result that the magnetic sensor 26 is exposed to the magnetic fields generated by the magnets 27 in turn, at a frequency directly proportional to the water flow rate.
  • the magnetic sensor 26 consists preferably of a Hall effect sensor, formed essentially from a plate of conducting material traversed by an electric current, a potential difference being induced in the plate whenever it is immersed in a magnetic field.
  • a sensor 28 is provided at the water delivery valve 23 to sense whether the water delivery valve 23 is open or closed.
  • the senor 28 is also a magnetic Hall effect sensor.
  • the evaporator 19 is located in heat transfer contact with a vessel/container 29 to contain the syrup to be mixed with the water.
  • the positive displacement pump 31 can be a peristaltic pump, in which case the pipe 30 or the discharge of syrup from the vessel/container 29 must be a flexible tube.
  • the positive displacement pump 31 is preferably driven by an electric motor 33 via a reduction gear 32.
  • the electric motor 33 is provided with a measuring device 34 for measuring its instantaneous rotation speed.
  • the instantaneous speed measuring device 34 can be formed from a perforated disc 35 rigid with the shaft of the electric motor 33, and a photocoupler 36.
  • the photocoupler 36 consists of a light source 37 mounted in front of a photosensor 38.
  • the perforated disc 25 and the photocoupler 36 are mounted in such a manner that the light beam generated by the light source 37 can reach the photosensor 38 only via the holes in the disc 35.
  • the photosensor 38 is struck by light generated by the light source 37 at a frequency directly proportional to the rotation speed of the electric motor 33.
  • the measuring device 34 can be a dynamo tachometer or a Hall sensor, by fixing a permanent magnet rigidly to a disc which rotates with the motor.
  • the tube 30 Downstream of the positive displacement pump 31 the tube 30 is connected to the pipe 21 so that the syrup mixes with the water.
  • the sensor 26 installed on the flow meter 22, the sensor 28 on the water delivery valve 23 and the measuring device 34 on the motor 33 are electrically connected to an electronic control device 39.
  • the electronic device 39 is powered by a stabilized power unit 40, and is connected to a potentiometer 41.
  • the sensor 28 feeds a signal to the electronic device 39.
  • the water begins to flow through the pipe 21, this being immediately sensed by the flow meter 22, which also begins to feed signals to the electronic device 39.
  • the electronic device 39 operates the electric motor 33 with the result that the syrup begins to flow through the tube 30.
  • the electronic device 39 is arranged to regulate the angular rotation of the electric motor 33 on the basis of the signals emitted by the instantaneous speed measuring device 34 and the signals emitted by the flow meter 22.
  • the electronic control device 39 acts on the positive displacement pump 31 to increase or decrease the syrup flow through the tube 30, in order to maintain the set water-syrup mixing ratio.
  • the operator can however intervene directly to modify the dilution ratio of the water-syrup mixture by operating the potentiometer 41.
  • the sensor 28 feeds to the motor 33 by means of the electronic device 39 a stop signal to prevent the inertia of the flow meter 22 inducing a residual or uncontrolled flow of syrup alone.
  • control system consisting of the electronic device 39, the sensors 26, 28 and 34, and the actuator 33 operates completely automatically to maintain the mixture dilution constant at every moment during the entire delivery from the opening to the closure of the water delivery valve 23.
  • the reference numeral 43 indicates the input to the control system 42, and 44 indicates the output of said control system 42.
  • the input 43 is represented by the instantaneous water flow rate, while the output 44 is represented by the water-syrup mixture.
  • the water flow rate 43 in the process under examination is an exogenous variable, on which the control system cannot act directly.
  • the mixing ratio of the mixture 44 represents the controlled variable, which must be maintained constant at every moment independently of the water flow rate.
  • the flow rate of the mixture 44 is given by the sum of the water flow rate 43 and the syrup flow rate 45.
  • the syrup flow rate 45 represents the control variable on which the feedback regulating system, indicated overall by 46, acts to maintain the controlled variable 44 constant independently of the value of the exogenous variable 43.
  • the input to the feedback regulating system 46 is represented by the measurement 47 of the exogenous variable 43, said measurement 47 being made by a first transducer 48.
  • the transducer 48 of the operational scheme of Figure 2 corresponds to the flow meter 22 in the mechanical schematic diagram of Figure 1.
  • the control system 42 begins to operate only after receiving a signal from the sensor 28 indicating that the water delivery valve 23 has been opened.
  • the feedback regulating system 46 comprises a regulator 49, operationally represented by the electronic control device 39, in series with which there is an actuator 50.
  • the actuator 50 is operationally represented by the electric motor 33 and the positive displacement pump 31.
  • the output of the actuator 50 is measured by a second transducer 51, represented by the instantaneous speed measuring device 34.
  • a measurement 52 made by the transducer 51 on the syrup flow rate 45 is fed to the input of the regulating system 46 and subtracted from the water flow rate measurement 47.
  • the feedback loop is thus closed and the regulating system 46 is able to quickly and effectively compensate for any temporary or continuous differences between the expected water flow rate and that effectively present.
  • control system 42 it is also very simple for an operator to continuously modify the desired water-syrup dilution ratio.
  • this can be achieved by adjusting the potentiometer 41 connected to the electronic control device 39.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Devices For Dispensing Beverages (AREA)
  • Control Of Non-Electrical Variables (AREA)
  • Non-Alcoholic Beverages (AREA)
EP92201055A 1991-04-16 1992-04-14 Getränkeausgabevorrichtung Withdrawn EP0509602A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI911040A IT1246788B (it) 1991-04-16 1991-04-16 Macchina per la distribuzione di bevande
ITMI911040 1991-04-16

Publications (1)

Publication Number Publication Date
EP0509602A1 true EP0509602A1 (de) 1992-10-21

Family

ID=11359617

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92201055A Withdrawn EP0509602A1 (de) 1991-04-16 1992-04-14 Getränkeausgabevorrichtung

Country Status (2)

Country Link
EP (1) EP0509602A1 (de)
IT (1) IT1246788B (de)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2264551A (en) * 1992-01-22 1993-09-01 Cellar Services Technology Ltd Free flow tap lever position sensor.
WO1995034501A1 (en) * 1994-06-16 1995-12-21 Anthony Powell Device for dispensing liquids in a desired ratio
US5651663A (en) * 1994-04-08 1997-07-29 Digmesa Ag Safety device for a pump for installation in lines for liquids, especially water, and a device for delivering liquid
US5797519A (en) * 1997-03-14 1998-08-25 The Coca-Cola Company Postmix beverage dispenser
EP0932578A1 (de) * 1996-07-02 1999-08-04 Marcel Van Der Merwe Maschine zum ausgeben von softeis
US6145701A (en) * 1996-07-02 2000-11-14 Marcel Van Der Merwe Machine for dispensing a soft-serve product such as ice-cream, frozen yoghurt, or the like
WO2004062443A2 (en) 2003-01-06 2004-07-29 Bunn-O-Matic Corporation Power circuitry for beverage apparatus
WO2007070031A1 (en) * 2005-12-12 2007-06-21 Carrier Corporation Ratio control in postmix dispenser
US7798367B2 (en) 2005-12-12 2010-09-21 Carrier Corporation Mixing nozzle
WO2017091164A1 (en) 2015-11-23 2017-06-01 Yedier Hakan System and method for in-situ preparation of a product in form of liquid mixture, and vending thereof

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106419561A (zh) * 2016-12-02 2017-02-22 张家港市尚源环保科技有限公司 一种恒温节能集中式直饮水供给系统

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4189067A (en) * 1977-02-14 1980-02-19 Lykes Pasco Packing Company, Dispenser Division Electronic control for dispenser system
US4456149A (en) * 1981-10-21 1984-06-26 Venturon Corporation, Inc. Water dispensing system
GB2174459A (en) * 1985-05-04 1986-11-05 Jencons Liquid dispensing means
EP0251793A1 (de) * 1986-07-02 1988-01-07 Pektron Ltd. Flüssigkeitsspendevorrichtung
GB2221209A (en) * 1988-07-28 1990-01-31 Lyonair Ltd Liquid monitoring system for beer dispenser
US4955507A (en) * 1980-10-29 1990-09-11 The Coca-Cola Company Orange juice dispensing system
EP0387477A1 (de) * 1989-03-16 1990-09-19 ROPA Wasseraufbereitungs-anlagenbau Gesellschaft m.b.H. Verfahren zum portionsweisen Zubereiten von Mischgetränken und Ausschenkvorrichtung zur Durchführung dieses Verfahrens

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4189067A (en) * 1977-02-14 1980-02-19 Lykes Pasco Packing Company, Dispenser Division Electronic control for dispenser system
US4955507A (en) * 1980-10-29 1990-09-11 The Coca-Cola Company Orange juice dispensing system
US4456149A (en) * 1981-10-21 1984-06-26 Venturon Corporation, Inc. Water dispensing system
GB2174459A (en) * 1985-05-04 1986-11-05 Jencons Liquid dispensing means
EP0251793A1 (de) * 1986-07-02 1988-01-07 Pektron Ltd. Flüssigkeitsspendevorrichtung
GB2221209A (en) * 1988-07-28 1990-01-31 Lyonair Ltd Liquid monitoring system for beer dispenser
EP0387477A1 (de) * 1989-03-16 1990-09-19 ROPA Wasseraufbereitungs-anlagenbau Gesellschaft m.b.H. Verfahren zum portionsweisen Zubereiten von Mischgetränken und Ausschenkvorrichtung zur Durchführung dieses Verfahrens

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2264551A (en) * 1992-01-22 1993-09-01 Cellar Services Technology Ltd Free flow tap lever position sensor.
US5651663A (en) * 1994-04-08 1997-07-29 Digmesa Ag Safety device for a pump for installation in lines for liquids, especially water, and a device for delivering liquid
WO1995034501A1 (en) * 1994-06-16 1995-12-21 Anthony Powell Device for dispensing liquids in a desired ratio
US6092693A (en) * 1994-06-16 2000-07-25 Powell; Anthony Device for dispensing liquids in a desired ratio
EP0932578A1 (de) * 1996-07-02 1999-08-04 Marcel Van Der Merwe Maschine zum ausgeben von softeis
EP0932578A4 (de) * 1996-07-02 2000-03-08 Merwe Marcel V D Maschine zum ausgeben von softeis
US6145701A (en) * 1996-07-02 2000-11-14 Marcel Van Der Merwe Machine for dispensing a soft-serve product such as ice-cream, frozen yoghurt, or the like
US5797519A (en) * 1997-03-14 1998-08-25 The Coca-Cola Company Postmix beverage dispenser
WO2004062443A2 (en) 2003-01-06 2004-07-29 Bunn-O-Matic Corporation Power circuitry for beverage apparatus
EP1611668A2 (de) * 2003-01-06 2006-01-04 Bunn-O-Matic Corporation Stromschaltung für eine getränkevorrichtung
EP1611668A4 (de) * 2003-01-06 2009-03-04 Bunn O Matic Corp Stromschaltung für eine getränkevorrichtung
US8692165B2 (en) 2003-01-06 2014-04-08 Bunn-O-Matic Corporation Power circuitry incorporating both foreign and domestic alternating current line voltages for a heated beverage apparatus
WO2007070031A1 (en) * 2005-12-12 2007-06-21 Carrier Corporation Ratio control in postmix dispenser
US7798367B2 (en) 2005-12-12 2010-09-21 Carrier Corporation Mixing nozzle
US8006866B2 (en) 2005-12-12 2011-08-30 Carrier Corporation Ratio control in postmix dispenser
US8083100B2 (en) 2005-12-12 2011-12-27 Carrier Corporation Mixing nozzle
WO2017091164A1 (en) 2015-11-23 2017-06-01 Yedier Hakan System and method for in-situ preparation of a product in form of liquid mixture, and vending thereof

Also Published As

Publication number Publication date
ITMI911040A1 (it) 1992-10-16
ITMI911040A0 (it) 1991-04-16
IT1246788B (it) 1994-11-26

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