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WO2000025074A1 - Refroidissement de boisson - Google Patents

Refroidissement de boisson Download PDF

Info

Publication number
WO2000025074A1
WO2000025074A1 PCT/GB1999/003557 GB9903557W WO0025074A1 WO 2000025074 A1 WO2000025074 A1 WO 2000025074A1 GB 9903557 W GB9903557 W GB 9903557W WO 0025074 A1 WO0025074 A1 WO 0025074A1
Authority
WO
WIPO (PCT)
Prior art keywords
coils
tank
spiral
ice
ice bank
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.)
Ceased
Application number
PCT/GB1999/003557
Other languages
English (en)
Inventor
Ian Thomas Richard Whittington
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.)
Marmon Foodservice Technologies UK Ltd
Original Assignee
IMI Cornelius UK Ltd
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 IMI Cornelius UK Ltd filed Critical IMI Cornelius UK Ltd
Priority to AU63588/99A priority Critical patent/AU6358899A/en
Publication of WO2000025074A1 publication Critical patent/WO2000025074A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • B67D1/0865—Cooling arrangements using compression systems the evaporator acting through an intermediate heat transfer means by circulating a cooling fluid along beverage supply lines, e.g. pythons
    • 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
    • B67D1/0865—Cooling arrangements using compression systems the evaporator acting through an intermediate heat transfer means by circulating a cooling fluid along beverage supply lines, e.g. pythons
    • B67D1/0867—Cooling arrangements using compression systems the evaporator acting through an intermediate heat transfer means by circulating a cooling fluid along beverage supply lines, e.g. pythons the cooling fluid being a liquid
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/02—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being helically coiled
    • F28D7/024—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being helically coiled the conduits of only one medium being helically coiled tubes, the coils having a cylindrical configuration

Definitions

  • This invention relates to the cooling of beverages.
  • beverages which are to be drunk by a customer in a bar or a retail outlet there are two usual ways of presenting the beverage. It may either be in a closed container such as a can or a bottle typically stored in a refrigerated cabinet, or it may be dispensed into a cup or glass from a storage device such as a remote barrel or a counter-top container.
  • a storage device such as a remote barrel or a counter-top container.
  • Such dispense systems have associated chilling equipment designed to deliver the beverage into the customer's drinking vessel at the temperature designated by the beverage supplier as being the most satisfactory for taste and appearance.
  • the beverage may be maintained at a low temperature within its storage system to reduce microbial or fungal infection and to preserve the usable life of the product.
  • the beverage In passing from its storage container to the dispense point it may need to be further chilled or it may need to be maintained at its stored temperature.
  • Various devices are used for this purpose.
  • the tubes through which the beverage passes are typically contained within a thermally insulating sheath, known as a python.
  • a thermally insulating sheath known as a python.
  • Several beverage lines may be contained within a single python, and there may also be adjacent tubes carrying liquid coolant in a closed circuit which ensures that the beverage remains chilled even over long transit distances from cellar to bar, and even in warm environments.
  • This liquid coolant which may be ater or glycol based is recycled and chilled itself before passing once again through the python.
  • the liquid coolant could be soda (carbonated water) travelling through a soda circuit which includes a chilling stage.
  • Chilling of the coolant may take place in a well-known device called an ice-bank cooler, a typical example of which is described in British patent 979 035.
  • the ice-bank cooler may also or alternatively be used to chill the beverage itself, or components of the beverage e.g. carbonated water, before it passes along a python to its dispense point.
  • An ice-bank cooler in its simplest form comprises a tank in which the evaporator of a refrigeration circuit is arranged as a helical coil adjacent the inner wall of the tank.
  • the refrigerant is typically circulated through the evaporator such that it travels upwardly around the helical coil.
  • the tank is often rectangular in shape, in which case the helical coil is usually also rectangular.
  • the tank is filled with water and the refrigeration circuit is operated to cause the water to freeze around the evaporator coil thereby building up a bank of ice between the inner wall of the tank and the coil and towards the middle of the tank.
  • the thickness of the ice bank increases with time as long as no heat load is applied to the cooler.
  • the remaining water in the tank is often agitated to cause it to flow over the surface of the ice, so that the water temperature becomes homogenous and gradually approaches the temperature at which it freezes.
  • This water is extracted from the tank and using a pump it is circulated along a python, gradually losing heat through the python wall and in chilling adjacent lines of beverage.
  • the coolant water is returned to the water bath in the tank.
  • the return (warmed) water is usually admitted to the tank at a position adjacent the bottom wall of the tank. During periods of limited or no dispense, a substantial cold store will be developed in the form of the ice bank.
  • Sensors are usually employed so as to switch off the refrigeration circuit when a predetermined thickness of ice has been achieved and to switch it on again when the ice bank shrinks to less than a specified amount.
  • a heat load is applied to the cooler as a result of an increased rate of dispense, the ice bank will be gradually reduced as it chills the water surrounding it which now includes recirculated (warmed) water.
  • the power rating and size of the ice-bank cooler will be selected to cope with the heat load placed upon the system. This can be calculated from features including the dispense rate and the ambient temperature conditions.
  • the tank there may be coils or loops containing the product to be dispensed or a component thereof. This enables the product to be chilled before typically passing through product tubes in the python to the dispense point(s).
  • an ice-bank cooler may be used for chilling product coils alone.
  • the inner tank wall may be shaped to encourage water circulation. This is very important in maintaining a constant dispense temperature for a particular beverage which passes through product coils within the tank.
  • the deeper the tank the more difficult it is to maintain water temperature homogeneity.
  • ice-bank occurring. In extreme cases ice can be stripped preferentially from e.g. the lower coils of the evaporator whilst the upper coils have still a thick ice-bank around them.
  • an ice-bank cooler comprises a tank to contain water and ice, an evaporator connected to a refrigeration circuit, the evaporator being in the form of a spiral with one or more substantially vertical axes and being adapted to be immersed in the tank water and means to circulate refrigerant through the coils of the spiral to cause freezing of the water adjacent the coils to form a bank of ice around the coils, in which at least a portion of the coils of the spiral lie in closer proximity one to the other than coils in another portion or other portions of the spiral to alleviate uneven erosion of the ice bank.
  • the coils in a lower portion of the spiral may lie in closer proximity to one another than the coils in an upper portion of the spiral.
  • the coil separation may change at a constant rate over a portion of the evaporator spiral.
  • a portion of the spiral may have a constant pitch which is different from the pitch in another portion of the spiral. Spacers between the coils of the spiral may be used to control the relative separation of adjacent coils.
  • FIG. 1 is a schematic side elevation in section of an ice-bank cooler in accordance with invention.
  • a plastics tank 10 is a generally rectangular shape when seen in plan and contains a water bath whose upper surface is indicated by line 12.
  • the evaporator of a refrigeration circuit comprises a helix of coils 11 positioned within tank 10. The coils 11 lie adjacent to although spaced from the inner wall of tank 10, and the helix is rectangular in plan view. Refrigeration fluid passes through the coils 11 from the lowermost coil to the uppermost coil before returning in the refrigeration circuit.
  • the refrigeration circuit 11 is not shown, but it is typically positioned close to the tank 10. Coils 11 are all fully immersed in the water bath.
  • a shaft 13 extends downwards from a motor 14 substantially centrally within tank 10. Shaft 13 carries an impeller 15 at its lower end which, upon operation of motor 14, acts to agitate the water in tank 10.
  • Water from tank 10 may be circulated in a closed loop e.g. through a python (not shown) by extracting it from outlet 18 which extends into the upper portion of tank 10. Recirculated water is returned to tank 10 via pump 16 and inlet 17 which extends to near the bottom of tank 10.
  • Pump 16 is illustrated as being positioned externally of tank 10, but in many applications the pump may be a submersible pump integral with the agitator assembly. Where the ice-bank cooler is used to chill coils containing product to be dispensed, rather than recirculating python coolant, a submersible pump is typically part of the product line.
  • the arrangement shown provides greater resistance to preferential erosion of the ice-bank 19 in the lower part of tank 10. This may be due in certain cases to the returned coolant (which is warmer than the outgoing coolant) spending longer in closer proximity to the lower parts of the ice-bank. In other applications e.g. where the ice-bath is used to chill part of a soda circuit immersed in the bath, it may be the tendency of the impeller to push the water in the bath in a downward direction which result leads to preferential erosion of the ice-bank.
  • the invention leads to more consistent cooling of beverage over the period during which beverage is required to be dispensed from a bar in which the beverage lines pass through a python chilled in the manner described, or in which the soda or dispensed product is chilled by passing through an ice-bath.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

Un refroidisseur à accumulation de glace amélioré comprend une cuve (10) prévue pour contenir de l'eau et de la glace, un évaporateur (11) couplé à un circuit de réfrigération, l'évaporateur se présentant sous forme d'une spirale comprenant un ou plusieurs axes sensiblement verticaux et étant prévu pour être plongé dans l'eau (12) de la cuve ; ainsi qu'un dispositif de mise en circulation du liquide réfrigérant dans les spires de la spirales pour refroidir ainsi l'eau située à proximité immédiate des spires (11) pour former un bloc de glace (19) autour des spires (11). Ce système se caractérise en ce qu'au moins dans une partie (21) de la spirale les spires (11) se situent plus près l'une de l'autre que les spires situées dans une autre partie ou dans d'autres parties (20) de la spirale pour éviter ainsi l'érosion inégale du bloc de glace (19).
PCT/GB1999/003557 1998-10-28 1999-10-27 Refroidissement de boisson Ceased WO2000025074A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU63588/99A AU6358899A (en) 1998-10-28 1999-10-27 Beverage cooling

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9823707A GB2343243B (en) 1998-10-28 1998-10-28 Beverage cooling
GB9823707.6 1998-10-28

Publications (1)

Publication Number Publication Date
WO2000025074A1 true WO2000025074A1 (fr) 2000-05-04

Family

ID=10841521

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1999/003557 Ceased WO2000025074A1 (fr) 1998-10-28 1999-10-27 Refroidissement de boisson

Country Status (4)

Country Link
AU (1) AU6358899A (fr)
ES (1) ES2191549B1 (fr)
GB (1) GB2343243B (fr)
WO (1) WO2000025074A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012229898A (ja) * 2011-04-27 2012-11-22 Kyoei Controls:Kk 冷却装置、冷却システムおよび冷却ユニット
WO2020074117A1 (fr) * 2018-10-09 2020-04-16 Linde Aktiengesellschaft Échangeur de chaleur spiralé, procédé de fabrication d'un échangeur de chaleur spiralé, et procédé d'échange de chaleur entre un premier fluide et un second fluide

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AUPR400901A0 (en) * 2001-03-28 2001-04-26 Focus Thermal Technologies (International) Limited Thermal storage device
DE10118622C1 (de) * 2001-04-12 2002-11-07 Hartek Beverage Handling Gmbh Getränkekühlvorrichtung
KR20120119518A (ko) * 2011-04-21 2012-10-31 주식회사 위닉스 순간냉각기
ITBO20110430A1 (it) * 2011-07-18 2013-01-19 Vinicio Colombari Macchina per la refrigerazione di liquidi ad uso alimentare, in particolare acqua.
GB2505869A (en) * 2012-07-12 2014-03-19 Imi Cornelius Uk Ltd A beverage cooler comprising an ice bank which has a selectable size
JP6467142B2 (ja) * 2014-05-19 2019-02-06 サッポロビール株式会社 飲料サーバ及びその制御方法

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2023069A (en) * 1934-10-22 1935-12-03 Larkin Refrigerating Corp Liquid refrigerating unit
US2278225A (en) * 1941-02-25 1942-03-31 Halsey W Taylor Fluid cooler
GB979035A (en) 1962-12-19 1965-01-01 British Syphon Company Ltd Improvements relating to beverage cooling and dispensing equipment
US3541808A (en) * 1968-10-10 1970-11-24 Mink Dayton Inc Drinking fountain
GB2208536A (en) * 1987-07-31 1989-04-05 Imi Cornelius Beverage cooler
AU640778B2 (en) * 1990-05-18 1993-09-02 Zdenko Grubisa Ice storage system
EP0644387A1 (fr) * 1993-09-22 1995-03-22 IMI Cornelius Inc. Distributeur de boissons à commande électronique
GB2307975A (en) * 1995-12-09 1997-06-11 Booth Dispensers Drink cooling
GB2317680A (en) * 1996-09-20 1998-04-01 Daniel Joseph Ryan An ice bank cooler system

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1399829A (en) * 1971-10-12 1975-07-02 Foodex Systems Ltd Mixing device and refrigeration system
GB2136102B (en) * 1982-09-30 1987-03-04 Robert Rees Stephen Jones Milk cooler

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2023069A (en) * 1934-10-22 1935-12-03 Larkin Refrigerating Corp Liquid refrigerating unit
US2278225A (en) * 1941-02-25 1942-03-31 Halsey W Taylor Fluid cooler
GB979035A (en) 1962-12-19 1965-01-01 British Syphon Company Ltd Improvements relating to beverage cooling and dispensing equipment
US3541808A (en) * 1968-10-10 1970-11-24 Mink Dayton Inc Drinking fountain
GB2208536A (en) * 1987-07-31 1989-04-05 Imi Cornelius Beverage cooler
AU640778B2 (en) * 1990-05-18 1993-09-02 Zdenko Grubisa Ice storage system
EP0644387A1 (fr) * 1993-09-22 1995-03-22 IMI Cornelius Inc. Distributeur de boissons à commande électronique
GB2307975A (en) * 1995-12-09 1997-06-11 Booth Dispensers Drink cooling
GB2317680A (en) * 1996-09-20 1998-04-01 Daniel Joseph Ryan An ice bank cooler system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012229898A (ja) * 2011-04-27 2012-11-22 Kyoei Controls:Kk 冷却装置、冷却システムおよび冷却ユニット
WO2020074117A1 (fr) * 2018-10-09 2020-04-16 Linde Aktiengesellschaft Échangeur de chaleur spiralé, procédé de fabrication d'un échangeur de chaleur spiralé, et procédé d'échange de chaleur entre un premier fluide et un second fluide
US11920873B2 (en) 2018-10-09 2024-03-05 Linde Gmbh Wound heat exchanger, method for producing a wound heat exchanger and method for exchanging heat between a first fluid and a second fluid

Also Published As

Publication number Publication date
ES2191549A1 (es) 2003-09-01
GB2343243B (en) 2003-01-15
AU6358899A (en) 2000-05-15
GB2343243A (en) 2000-05-03
ES2191549B1 (es) 2005-01-01
GB9823707D0 (en) 1998-12-23

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