EP0191436A1 - Device for cooling and dispensing drink - Google Patents

Device for cooling and dispensing drink Download PDF

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Publication number
EP0191436A1
EP0191436A1 EP86101612A EP86101612A EP0191436A1 EP 0191436 A1 EP0191436 A1 EP 0191436A1 EP 86101612 A EP86101612 A EP 86101612A EP 86101612 A EP86101612 A EP 86101612A EP 0191436 A1 EP0191436 A1 EP 0191436A1
Authority
EP
European Patent Office
Prior art keywords
tank
drink
coil
liquid
tanks
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Withdrawn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
EP86101612A
Other languages
German (de)
English (en)
French (fr)
Inventor
Pierluigi Soffientini
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.)
SIPP SpA
Original Assignee
SIPP 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 SIPP SpA filed Critical SIPP SpA
Publication of EP0191436A1 publication Critical patent/EP0191436A1/en
Withdrawn legal-status Critical Current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
    • B67D1/0857—Cooling arrangements
    • B67D1/0858—Cooling arrangements using compression systems
    • B67D1/0861—Cooling arrangements using compression systems the evaporator acting through an intermediate heat transfer means
    • B67D1/0864—Cooling arrangements using compression systems the evaporator acting through an intermediate heat transfer means in the form of a cooling bath
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/02—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating liquids, e.g. brine
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D31/00—Other cooling or freezing apparatus
    • F25D31/002—Liquid coolers, e.g. beverage cooler
    • F25D31/003—Liquid coolers, e.g. beverage cooler with immersed cooling element

Definitions

  • the present patent refers to an apparatus for dispensing drink and concerns a device to cool drink while the latter is being dispensed.
  • Machines for dispensing alcoholic and non-alcoholic drink which also cool the drink while it is being dispensed are well known.
  • a commonly used technique for non-alcoholic drink dispensers is to mix a syrup with water directly from the mains supply. The mixing of the syrup and water may take place before or after the refrigeration stage.
  • the refrigeration devices for the drink or the water to the mixed with the syrup have, up to now, been of two types: ice-layer or water-bath.
  • the ice-layer refrigeration devices consist of a water tank in which are immersed a primary refrigerator evaporator coil and at least one coil in which the drink to be cooled flows.
  • the refrigerator must be sufficiently powerful to maintain a layer of ice on the evaporator coil; this layer of ice is maintained constant by a sonde which measures the thickness and activates the refrigerator whenever the thickness falls below a set value.
  • a propeller agitator keeps the water in the tank in constant motion; in this way, the water in the tank is kept at the temperature of melting ice.
  • the temperature in the bath tends to rise but the instantaneous melting of the ice covering the evaporator coil returns it immediately to the inthe inicial value. Given that the change of state from ice to water requires a large quantity of heat, it is obvious that this device has a high thermal inertia, even with a small water tank and a refrigerator of limited power.
  • the temperature of the water in the tank being kept constant, the temperature at which the drink leaves the refrigeration device depends on the length of the second coil and the temperature of the drink before refrigeration. Because of the dispensing speed requirement, it is not possible to regulate the temperature of the cooled drink by regulating the flow in the second coil.
  • a second drawback of the ice-layer device is that the drink undergoes a sharp drop in temperature when it enters the second coil.
  • a water-bath refrigeration device consisting of a tank full of water in which are immersed the evaporator coil of a refrigerator and at least one coil through which the drink circulates to be cooled.
  • a water-bath refrigeration device consisting of a tank full of water in which are immersed the evaporator coil of a refrigerator and at least one coil through which the drink circulates to be cooled.
  • the ice-layer device there is no ice present in the second device only water kept at a set temperature.
  • this device requires a large volume tank and a refrigerator of considerable power to rapidly cool the water in the tank.
  • a device consisting of a combination of the ice-layer and the water-bath devices.
  • Such a device consists of two tanks filled with water, in the first of which is immersed the evaporator coil, covered in a layer of ice, of the refrigerator system while in the second is the coil through which the drink to be cooled circulates.
  • the tanks are interconnected by pipes and a pump circulates the water from the first tank to the second one when the temperature in the second exceeds a set value.
  • This known device has been found to be excessively costly and inconvenient, because of the need for two tanks and three motors; one for the propeller agitator in each tank and one for the water circulation pump.
  • the water-return pipe into the first tank tends to be obstracted by the inevitable turbidity of the water in the two tanks.
  • the aim of the present invention is especially to propose a refrigeration device which eliminates the drawbacks of the devices known up to now, allowing, in particular, the treatment of any kind of drink, even those sensitive to changes in temperature, like beer and wine, while presenting limited inconvenience and requiring a refrigerator of limited power.
  • Another aim of the invention is to propose a device which can regulate the dispensing temperature of the drink, from a minimum of 0 C to higher temperatures.
  • a refrigeration device consisting of an evaporator coil from a refrigerator and at least one coil through which the drink to be cooled flows, the coils being immersed in a liquid which constitutes the means of heat transfer, characterized by the fact that it consists of two tanks, contained one within the other, one of which contains the evaporator coil with constantly maintained ice-layer, while the other contains the drink cooling coil(s); and by the fact that both tanks are interconnected by a pump regulated by a thermostat which, activated by the temperature of the liquid in the tank containing the drink cooling coil(s), causes the liquid to circulate between the two tanks, the liquid in the tank supplied by the pump being free to overflow into the other tank.
  • the refrigeration device allows the temperature of the liquid in which each of the drink cooling coils is immersed, to be regulated from 0 C, obtained by countinous circulation of the liquid between the two tanks, and a higher temperature, obtained by circulating liquid when the temperature of the liquid in the tank containing the drink cooling coil(s) exceeds a. predetermined value.
  • the device according to the invention is able to treat any kind of drink in particular, those more sensitive to changes in temperature, like beer and wine; allowing, furthermore, the regulation of the dispensing temperature of the drink itself.
  • the presence of the ice layer around the evaporator coil provides a large quantity of refrigeration without resort to a high-powered refrigerator or a large volume of liquid in the two tanks.
  • the device according to the invention consists essentially of an expanding gas refrigerator (1) and a pair of tanks (2) and (3), one within the other.
  • the walls and base of the smaller tank (2) are carefully insulated and positioned in tank (3) so that there is space between the two walls.
  • the evaporator coil (4) of the refrigerator unit is situated in tank (3) while the smaller tank (2) contains the coil(s) (5) through which the drink to be cooled flows.
  • the two tanks are filled with water and are interconnected by a pump (6) which transfers water from tank (3) to tank (2).
  • tank (3) In the base of tank (2) there is an opening (7) which connects tank (3) to the intake of the pump (6) through the pipe (8).
  • the pump (6) is driven through the shaft (9) by the electric motor (10) controlled by a thermostat (11) which has a sensor (12) immersed in the water in tank (2) in the immediate vicinity of the drink cooling coil(s) (5).
  • the outlet of the pump (6) is so shaped to promote circulation of the liquid in tank (2), ensuring even distribution of the heat in tank (2).
  • the evaporator coil (4) is covered by a layer of ice (4') whose thickness is measured by a sonde (13) which activates the refrigerator (1) whenever the thickness is less than a predetermined value.
  • the temperature in the larger tank (3) is therefore 0 C while that in tank (2) can be 0 C or higher; in particular the temperature of the water in tank (2) can be chosen from a wide range of values and maintained by regulating the thermostat (11).
  • the thermostat activates the pump (6) which transfers water at 0 C from tank (3) to tank (2).
  • tank (3) raises the temperature of the water in the latter which is immediately returned to 0 C by the melting of some of the ice-layer (4') covering the evaporator coil (4), whose reduction in turn is detected by the sonde (13) which activates the refrigerator (1).
  • the layer of ice (4') on the evaporator coil (4) constitutes a considerable thermal buffer, allowing the use of a low-powered refrigerator and a tank (3) of reduced dimensions.
  • the main advantage of the device according to the invention is to allow the regulation of the temperature of the liquid containing the drink cooling coil(s) from values of 0 C to temperature of 10 C and above. This characteristic advantage allows it to treat all kinds of drink in particular, those most sensitive to changes in temperature, like wine and beer.
  • the disposition of the tanks, one inside the other, gives a number of advantages; in particular, it allows the device to be of similar dimensions to the ice-layer device; the circulation of the water between the two tanks is facilitated and assured by the fact that its return to the tank from which it was taken by the pump is by simple overflow; the agitation of the water in both tanks is assured by the jet of water from the pump in one and by the overflow in the other, with consequent simplification of the mechanism, which consists solely of the pump motor.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
EP86101612A 1985-02-12 1986-02-06 Device for cooling and dispensing drink Withdrawn EP0191436A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT19477/85A IT1183247B (it) 1985-02-12 1985-02-12 Dispositivo di erogazione e refrige razione di bevande
IT1947785 1985-02-12

Publications (1)

Publication Number Publication Date
EP0191436A1 true EP0191436A1 (en) 1986-08-20

Family

ID=11158348

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86101612A Withdrawn EP0191436A1 (en) 1985-02-12 1986-02-06 Device for cooling and dispensing drink

Country Status (2)

Country Link
EP (1) EP0191436A1 (it)
IT (1) IT1183247B (it)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0439584A1 (en) * 1989-08-22 1991-08-07 Allan John Cassell COOLING DEVICE.
WO1994005590A1 (de) * 1992-08-28 1994-03-17 Bosch-Siemens Hausgeräte Gmbh Vorrichtung zum anreichern von wasser mit co2-gas zur erzeugung von karbonisertem wasser
US5627310A (en) * 1992-12-10 1997-05-06 Imi Cornelius, Inc. Sensor arrangement for ice bank control
US5732563A (en) * 1993-09-22 1998-03-31 Imi Cornelius Inc. Electronically controlled beverage dispenser
ES2143897A1 (es) * 1996-07-19 2000-05-16 Garrucho Jose Maria Romero Equipo enfriador de bebidas.
WO2000043311A1 (en) * 1999-01-19 2000-07-27 Whitlenge Drink Equipment Limited Improvements relating to cooling devices
EP1431690A1 (en) * 2002-12-18 2004-06-23 Dieau S.A. Fluid cooling system, cooled fluid dispenser comprising the latter, and methods for sterilization thereof
EP1574798A1 (en) * 2004-02-24 2005-09-14 Dieau Cooling unit for a drinking water fountain, and water fountain containing such a unit
WO2007029007A1 (en) * 2005-09-09 2007-03-15 Trinity Cooling Limited An apparatus for controlling the temperature of a liquid
CN113623939A (zh) * 2021-08-18 2021-11-09 北京天衡智联科技有限公司 一种变温装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE646207C (de) * 1934-12-14 1937-06-12 Robert Bosch Akt Ges Getraenkekuehler
GB1346590A (en) * 1970-11-23 1974-02-13 Mk Refrigeration Ltd Heat exchange apparatus for controlling liquid temperatures
DE2349539A1 (de) * 1972-10-06 1974-04-18 Mk Refrigeration Ltd Vorrichtung zur einstellung der temperatur einer fluessigkeit
GB2007820A (en) * 1977-08-22 1979-05-23 Marston Paxman Ltd Beer cooler

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE646207C (de) * 1934-12-14 1937-06-12 Robert Bosch Akt Ges Getraenkekuehler
GB1346590A (en) * 1970-11-23 1974-02-13 Mk Refrigeration Ltd Heat exchange apparatus for controlling liquid temperatures
DE2349539A1 (de) * 1972-10-06 1974-04-18 Mk Refrigeration Ltd Vorrichtung zur einstellung der temperatur einer fluessigkeit
GB2007820A (en) * 1977-08-22 1979-05-23 Marston Paxman Ltd Beer cooler

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0439584A1 (en) * 1989-08-22 1991-08-07 Allan John Cassell COOLING DEVICE.
EP0439584A4 (en) * 1989-08-22 1991-12-04 Allan John Cassell Chilling apparatus
WO1994005590A1 (de) * 1992-08-28 1994-03-17 Bosch-Siemens Hausgeräte Gmbh Vorrichtung zum anreichern von wasser mit co2-gas zur erzeugung von karbonisertem wasser
US5399300A (en) * 1992-08-28 1995-03-21 The Coca-Cola Company Storage tank for a carbonator including cooling system control means therefor
US5627310A (en) * 1992-12-10 1997-05-06 Imi Cornelius, Inc. Sensor arrangement for ice bank control
US5732563A (en) * 1993-09-22 1998-03-31 Imi Cornelius Inc. Electronically controlled beverage dispenser
ES2143897A1 (es) * 1996-07-19 2000-05-16 Garrucho Jose Maria Romero Equipo enfriador de bebidas.
WO2000043311A1 (en) * 1999-01-19 2000-07-27 Whitlenge Drink Equipment Limited Improvements relating to cooling devices
EP1431690A1 (en) * 2002-12-18 2004-06-23 Dieau S.A. Fluid cooling system, cooled fluid dispenser comprising the latter, and methods for sterilization thereof
WO2004055458A1 (en) * 2002-12-18 2004-07-01 Dieau S.A. Fluid cooling system, cooled fluid dispenser comprising the later, and methods for sterilization thereof
EP1574798A1 (en) * 2004-02-24 2005-09-14 Dieau Cooling unit for a drinking water fountain, and water fountain containing such a unit
WO2005085726A1 (en) * 2004-02-24 2005-09-15 Dieau S.A. Cooling unit for a drinking water fountain, and water fountain containing such a unit
WO2007029007A1 (en) * 2005-09-09 2007-03-15 Trinity Cooling Limited An apparatus for controlling the temperature of a liquid
CN113623939A (zh) * 2021-08-18 2021-11-09 北京天衡智联科技有限公司 一种变温装置

Also Published As

Publication number Publication date
IT8519477A0 (it) 1985-02-12
IT1183247B (it) 1987-10-15

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Inventor name: SOFFIENTINI, PIERLUIGI