EP1152975A1 - Perfectionnements portant sur des dispositifs de refroidissement - Google Patents

Perfectionnements portant sur des dispositifs de refroidissement

Info

Publication number
EP1152975A1
EP1152975A1 EP99901748A EP99901748A EP1152975A1 EP 1152975 A1 EP1152975 A1 EP 1152975A1 EP 99901748 A EP99901748 A EP 99901748A EP 99901748 A EP99901748 A EP 99901748A EP 1152975 A1 EP1152975 A1 EP 1152975A1
Authority
EP
European Patent Office
Prior art keywords
chamber
liquid
cooling
circuit
inner chamber
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Withdrawn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
EP99901748A
Other languages
German (de)
English (en)
Inventor
Gary David Wyatt
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.)
Welbilt Halesowen Ltd
Original Assignee
Whitlenge Drink Equipment 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 Whitlenge Drink Equipment Ltd filed Critical Whitlenge Drink Equipment Ltd
Publication of EP1152975A1 publication Critical patent/EP1152975A1/fr
Withdrawn legal-status Critical Current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
    • B67D1/0042—Details of specific parts of the dispensers
    • B67D1/0057—Carbonators
    • B67D1/0061—Carbonators with cooling means
    • B67D1/0062—Carbonators with cooling means inside the carbonator
    • B67D1/0063—Cooling coil
    • 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
    • B67D1/0042—Details of specific parts of the dispensers
    • B67D1/0043—Mixing devices for liquids
    • B67D1/0054—Recirculation means
    • 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
    • B67D1/0859—Cooling arrangements using compression systems the evaporator being in direct heat contact with the beverage, e.g. placed inside a beverage container

Definitions

  • This invention is concerned with improvements relating to cooling devices, in particular for the cooling of liquids.
  • the invention has been devised particularly for the cooling of potable liquids, to be drawn off for consumption purposes, in which context the invention will hereinafter be described. It is however to be appreciated that the invention may be utilised in the cooling of liquids generally, where similar or analogous problems are encountered.
  • a conventional cooling device for cooling a potable liquid comprises a cooling chamber in which a cooling liquid having a low freezing point is contained. Located in the chamber is a refrigeration coil, through which a refrigerant is pumped, to reduce the temperature of the cooling liquid. Potable liquid is in turn fed through a cooling coil in the cooling chamber, in contact with the cooling liquid, so that potable liquid flowing through the cooling coil is cooled by the cooling liquid.
  • mechanical impelling means is provided in the chamber, to cause the cooling liquid to flow across the refrigeration coils and the cooling coils.
  • the liquid is continuously pumped around a circuit which contains the cooling coil, the dispensing head being operative to withdraw liquid from the circuit on demand. Fresh, uncooled liquid flows into the circuit upstream of the cooling coil, to replace that which is drawn off.
  • cooling devices are quite large, if they are to meet the requirements of providing cooled liquid at maximum demand, and it is one of the various objects of this invention to provide a cooling device which may cope with high demand without being unduly bulky.
  • a cooling device for cooling a potable liquid comprising a first chamber, a first cooling means adjacent to an outer wall of the first chamber, an inner wall defining an inner chamber located within the first chamber and which has an open top, second cooling means adjacent to the inner wall, and circulating means to pump liquid from the first chamber around a circuit and to return some at least of said circulating liquid to the inner chamber.
  • the first cooling means is operative to retain a quantity of liquid in the first chamber in frozen condition
  • the second cooling means is also operative to retain a quantity of liquid in the inner chamber in frozen condition.
  • a reservoir of "cold" is provided which is significantly larger than could conveniently otherwise be attained.
  • cooled liquid is withdrawn from the chamber inflowing liquid will be cooled by the frozen liquid, the frozen liquid being progressively melted.
  • the rate at which said cooling means is capable of cooling the liquid may thereby be significantly less than the maximum demand, whilst maintaining a high rate of operational efficiency of the cooling device.
  • first and inner chambers are generally cylindrical, the inner chamber being located generally co-axially within the first chamber.
  • the liquid is returned to the inner chamber at a lower region thereof and flows upwardly in the inner chamber to exit the inner chamber through the open top.
  • the recirculation means is operative to cause liquid to flow into the container in such a way as to cause turbulent motion or other general flow of liquid within the chamber, and specifically to cause sufficient movement of liquid in the chamber to permit the conventionally utilised impelling means to be dispensed with.
  • the circulating means is operative to draw liquid from the chamber at a location remote from the entrance of the circulating liquid into the chamber, conveniently being drawn from the chamber at a lower region, and being returned to the chamber at an upper region thereof.
  • the circuit extends from the chamber, such as at a lower region thereof, and extends to a dispensing head, from which potable liquid may be withdrawn, the circuit extending from the dispensing head back to the chamber, preferably to an upper region thereof.
  • Preferably means is provided to feed fresh liquid into the circuit, to replace liquid drawn from the circuit by the dispensing head.
  • the device comprises a sensing means to sense the build up of ice within the chamber, conventionally around the refrigeration coil, and which is operative to supply refrigerant to the refrigeration coil on sensing a low level of ice, and to cease supply of refrigerant around the refrigeration coil on sensing a high level of ice.
  • the device comprises sensing means to sense the level of liquid in the cooling chamber, and which is operative on sensing a reduction to cause or allow fresh liquid to flow into the chamber.
  • FIGURE 1 is a schematic side elevational view of the device which is the preferred embodiment of the invention
  • FIGURE 2 is a schematic plan view of the device shown in FIGURE 1 ;
  • FIGURE 3 is a schematic view showing a flow circuit of the invention.
  • the device which is the preferred embodiment of this invention is specifically for cooling potable liquid, and more particularly carbonated water.
  • the cooling device comprises an enclosed, airtight cooling chamber 6 (hereinafter call the main chamber) within which an inner cylindrical wall 8 is provided, which terminates a short distance from the top of the chamber, said wall 8 defining an inner chamber 9. Extending annularly within the annular space between the outer wall 10 of the chamber and the inner wall 8 are twin cooling coils 12a, 12b through which refrigerant is fed as required by pump PI .
  • the chamber 6 is filled to level 15 with potable liquid, specifically carbonated water.
  • the main chamber 6 forms part of a circuit 40 comprising an outlet conduit 20 by which liquid is drawn from the chamber and pumped by pump 42 around the circuit to an inlet conduit 26, said circuit including a dispensing head 46 by which liquid may be drawn therefrom, as desired.
  • valve 25 As liquid is drawn from the dispensing head, the level 15 in the main chamber 6 falls, and this is detected by probe 24 to cause valve 25 to open, to admit fresh, uncarbonated water into the circuit.
  • the circuit Downstream of valve 25 and prior to entry into the inner chamber 9, the circuit splits into two branches, providing inlet conduit 26 delivering liquid to the inner chamber 9, and inlet conduit 27 delivering liquid into the annular space between the two walls. A greater part of the water is however delivered into the inner chamber 9 via conduit 26, whilst water exiting conduit 27 flows generally tangentially, creating a vortex-like effect of the water in said annular space.
  • ice will build up around the refrigeration coils, as is shown, until probe 22 detects a maximum desirable thickness of ice, and signals termination of feed of refrigerant by the pump PI. Liquid continues to be pumped around the circuit by pump 42. Carbon dioxide is fed into the chamber via gas inlet 29.
  • recirculating liquid which may contain a proportion of fresh liquid, initially flows downwardly within the inner chamber 9, and then upwardly in contact with the wall of ice located on the inside of inner wall 8, prior to entering the annular part of the chamber by flowing over the top+ of the ice wall.
  • a "pre-chilling" may be effected, effectively ensuring that liquid flowing into the chamber will not immediately flow out from the chamber to the dispensing head.
  • the rate of removal of cooled liquid from the circuit is greater than the rate at which the refrigeration unit can cool fresh liquid, the body of ice will melt to an extent sufficient to ensure, for some considerable time, that the liquid withdrawn from the circuit is at a desirable low temperature.
  • the latent heat of freezing of water is such as to permit a relatively small quantity of ice to reduce in temperature a relatively large quantity of water.

Landscapes

  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Devices For Dispensing Beverages (AREA)

Abstract

Ce dispositif de refroidissement, destiné à un liquide potable, et notamment à un liquide gazeux, comprend une chambre de refroidissement (6) ainsi que des moyens de refroidissement destinés à retenir une certaine de quantité dudit liquide dans la chambre, à l'état congelé. On a notamment placé dans la chambre (6) une paroi cylindrique (8) constituant une chambre intérieure (9). On a monté, de manière adjacente à la paroi extérieure, un serpentin de refroidissement (12a) tandis qu'on a monté, de manière adjacente à la paroi cylindriq ue (8), un autre serpentin de refroidissement (12b, à travers lesquels le réfrigérant est pompé. La chambre (6) fait partie d'un circuit (40) dans lequel le liquide est soutiré à partir de la chambre, par l'intermédiaire d'une tête de distribution, le circuit retournant ensuite à la chambre (6), la tête de distribution constituant des moyens de soutirage du liquide à partir du dispositif. Au moins une partie du liquide retournant dans la chambre est distribué dans la chambre intérieure (9), afin de permettre que le liquide soit totalement refroidi avant de retourner dans le réservoir principal de liquide situé dans la chambre (6), et que le liquide sortant de la chambre et pénétrant dans le circuit soit à la température basse voulue.
EP99901748A 1999-01-19 1999-01-19 Perfectionnements portant sur des dispositifs de refroidissement Withdrawn EP1152975A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/GB1999/000176 WO2000043311A1 (fr) 1999-01-19 1999-01-19 Perfectionnements portant sur des dispositifs de refroidissement

Publications (1)

Publication Number Publication Date
EP1152975A1 true EP1152975A1 (fr) 2001-11-14

Family

ID=10845601

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99901748A Withdrawn EP1152975A1 (fr) 1999-01-19 1999-01-19 Perfectionnements portant sur des dispositifs de refroidissement

Country Status (3)

Country Link
EP (1) EP1152975A1 (fr)
AU (1) AU2175399A (fr)
WO (1) WO2000043311A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106335865A (zh) * 2016-08-25 2017-01-18 胡惜忠 一种水位探针与瓶体的连接结构及采用该结构的饮料瓶

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9919802D0 (en) 1999-08-21 1999-10-27 Whitlenge Drink Equipment Ltd Cooling system
ITMO20110035A1 (it) * 2011-02-17 2012-08-18 Roberto Marchetti Apparecchiatura per l'erogazione di acqua e soda
GB2490120B (en) * 2011-04-18 2016-04-13 Imi Cornelius (Uk) Ltd Cooler

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1494744A (en) * 1975-04-22 1977-12-14 British Syphon Ind Ltd Apparatus for dispensing carbonated beverages
IT1183247B (it) * 1985-02-12 1987-10-15 Sipp Spa Dispositivo di erogazione e refrige razione di bevande
SE464761B (sv) * 1989-05-31 1991-06-10 Post Mix Equipment Ab Foerfarande och anordning foer kolsyresaettning och kylning av en vaetska
GB2307975B (en) * 1995-12-09 1999-10-13 Booth Dispensers Drink cooling

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO0043311A1 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106335865A (zh) * 2016-08-25 2017-01-18 胡惜忠 一种水位探针与瓶体的连接结构及采用该结构的饮料瓶
CN106335865B (zh) * 2016-08-25 2018-11-02 胡惜忠 一种水位探针与瓶体的连接结构及采用该结构的饮料瓶

Also Published As

Publication number Publication date
WO2000043311A1 (fr) 2000-07-27
AU2175399A (en) 2000-08-07

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