EP1789358B1 - Verfahren und vorrichtung zum reinigen einer getränkeausgabeleitung - Google Patents

Verfahren und vorrichtung zum reinigen einer getränkeausgabeleitung Download PDF

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Publication number
EP1789358B1
EP1789358B1 EP05770628A EP05770628A EP1789358B1 EP 1789358 B1 EP1789358 B1 EP 1789358B1 EP 05770628 A EP05770628 A EP 05770628A EP 05770628 A EP05770628 A EP 05770628A EP 1789358 B1 EP1789358 B1 EP 1789358B1
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EP
European Patent Office
Prior art keywords
beverage
cooling
font
housing
line
Prior art date
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Active
Application number
EP05770628A
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English (en)
French (fr)
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EP1789358A2 (de
Inventor
Michael Robinson
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.)
Heineken UK Ltd
Original Assignee
Scottish and Newcastle Ltd
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Filing date
Publication date
Application filed by Scottish and Newcastle Ltd filed Critical Scottish and Newcastle Ltd
Priority to PL05770628T priority Critical patent/PL1789358T3/pl
Priority to SI200530393T priority patent/SI1789358T1/sl
Publication of EP1789358A2 publication Critical patent/EP1789358A2/de
Application granted granted Critical
Publication of EP1789358B1 publication Critical patent/EP1789358B1/de
Priority to CY20081100986T priority patent/CY1110396T1/el
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/026—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits
    • F28F9/027—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits in the form of distribution pipes
    • F28F9/0273—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits in the form of distribution pipes with multiple holes
    • 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
    • B67D1/0857—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
    • 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
    • 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
    • B67D1/0872—Aesthetics, advertising
    • 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
    • B67D1/14—Reducing valves or control taps
    • B67D1/1405—Control taps
    • B67D1/1411—Means for controlling the build-up of foam in the container to be filled
    • 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
    • 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

  • the present invention relates to an apparatus for dispensing beverages.
  • apparatus useful for dispensing beverages at low temperatures are particularly useful for dispensing beverages at low temperatures.
  • An apparatus according to the preamble of claim 1 is known from GB-A- 2 356 447 .
  • beverage including beers, lagers, soft drinks, milk shakes, wines and spirits are beneficially served at low temperatures. If the temperature of the beverage is too high, the quality and taste of the beverage may be affected adversely. In addition, recent consumer trends have increased the demand for beverages to be served at lower temperatures of, for example, around 3 degrees Celsius. In order to meet consumer expectations, it is desirable to dispense beverages at consistent temperatures. A particular problem has been found in dispensing draft beverages at low and consistent temperatures. By draft beverages is meant beverages which are stored at a point remote from the point of dispensation and transferred on demand to the point of dispensation through a beverage line. Typically the transfer is achieved using pumping mechanisms.
  • the python comprises one or more beverage lines running in parallel with a cooling circuit comprising one or more cooling lines through which cooling water flows.
  • the cooling water is typically supplied by the cooler.
  • the cooling circuit comprises an outward leg flowing from the cooler to the dispensation site and a return leg flowing from the dispensation site to the cooler.
  • a problem found with this attempted solution is that variation in the temperature of the beverage when it reaches the dispensation site can still occur due to changes in demand on the separate beverage flow lines and in particular occurs where beverage is left standing in the beverage line between dispensing of beverages or where a large number of beverages are dispensed in a short period.
  • the cooler comprises a water bath and an ice bank.
  • the ice bank serves to cool the water bath and the water bath cools in turn the beverage lines that pass therethrough.
  • the water bath of the cooler supplies the cooling water which flows in the cooling circuit of the python. It will be apparent that the cooling water returning from the dispensation site to the cooler will be at a higher temperature than the cooling water in the water bath.
  • the cooler becomes unable to maintain the temperature of the cooling bath without the ice bank melting. Eventually, this leads to the cooler being unable to cool the beverage lines sufficiently to meet the specified dispense temperatures. For this reason, it is common practice to limit the additional thermal loading applied to the cooling circuit of the cooler by items connected to the cooling circuit.
  • a cooling loop wherein a portion of the cooling water flowing in the python is diverted through pipework in the dispense font to cool the beverage flow lines in the locality of the dispense tap.
  • Each dispense font of this type connected to the cooling circuit of the python adds a thermal load to the cooling circuit.
  • a typical known cooling loop in a dispense font adds 10 watts equivalent heating to the cooling circuit.
  • An alternative method of attempting to cool the beverage in the font and also to provide condensation on the outer surfaces of a font is to flood the font housing with a cooling medium such as water.
  • a cooling medium such as water.
  • flooded fonts typically add around 140 Watts of heating to the cooling circuit. It will be apparent that use of a number of these fonts can quickly overload the cooling capacity of the remote cooler. It is also difficult to provide illumination in condensating fonts due to the close proximity of moisture and electricity.
  • a further problem in controlling dispensation temperatures of beverages on draft is that in many public houses or bars the cooling circuit is used to cool beverages from more than one supplier who may have different dispense specifications or requirements. For this reason, it is common practice to require the total additional thermal loading to be applied to the cooling circuit and hence the cooler to be less than 100 watts equivalent heating to ensure that the ice bank of the cooler is not melted in use. In addition, it is a common requirement that the minimum flow rate of cooling water through the python and remote cooler is 4 litres/minute. In practice this limits the number and type of dispense fonts that can be connected to the cooling circuit and the temperatures of beverages dispensed from those dispense fonts. Typical achievable dispense temperatures range from 6 to 10 degrees Celsius.
  • the present invention provides a beverage font comprising a housing for mounting to a bar or similar surface, one or more taps for dispensing beverage, one or more beverage lines routed through said housing for supplying said taps with beverage, and a cooling line located in thermal contact with the housing through which, in use, a cooling medium can flow so as to cool the housing so as to form condensation, frost or ice on at least a portion of an exterior of the housing, the beverage font further comprising an illumination source mounted within the housing for illuminating a branding panel or panels of the beverage font, characterised in that the illumination source is connected to a source of electrical power via an electronic control module, the electronic control module being located outside the beverage font housing, and in that the thermal contact, between the cooling line and the housing is provided by a plurality of structural bridges between the cooling line and the housing.
  • the illumination source is connected to the electronic control module by waterproofed, insulated wiring.
  • the illumination source is a cold cathode lamp.
  • the electronic control module is located in a waterproof housing.
  • the illumination source is a primary illumination source and the font further comprises a secondary illumination source located within the beverage font housing and connected to the electronic control module.
  • the secondary illumination source may be one or more light emitting diodes (LEDs).
  • LEDs light emitting diodes
  • the primary illumination source may be located in an upper portion of the housing and the secondary illumination source may be located in a lower portion of the housing.
  • the illumination source is at least partially enclosed within a block of plastics material, such as acrylic.
  • the cooling line may be in thermal contact with only one face of the housing to provide only one cooled face such that, in use, condensation, frost or ice is formed substantially only on said cooled face.
  • the cooled face of the housing is made of metal.
  • insulating means is provided to thermally insulate the cooling line from other faces of the housing.
  • the insulating means may be in the form of solid insulation substantially surrounding the cooling line except for areas of thermal contact between the cooling line and the cooled face.
  • the solid insulation is preferably expanded foam insulation.
  • At least a portion of the cooling line may be in thermal contact with the one or more beverage lines so as to cool beverage in the one or more beverage lines.
  • a separate cooling line is in thermal contact with the one or more beverage lines and through which a cooling medium can flow so as to cool beverage in the one or more beverage lines.
  • the one or more taps are adapted for dispensing beverages with foamed heads by means of utilising separate flow paths for a bulk portion of the beverage to be dispensed and a foamed portion of the beverage to be dispensed, wherein the tap defines two beverage flow paths, wherein one of the beverage flow paths is provided with a flow restriction for inducing turbulence in the beverage flow for producing foam and comprises an outlet angled at between 0 and 60 degrees to the horizontal so that foam dispensed from the outlet does not fob an already dispensed bulk portion of the beverage.
  • the one or more taps may be adapted for dispensing beverages with foamed heads by means of utilising separate flow paths for a bulk portion of the beverage to be dispensed and a foamed portion of the beverage to be dispensed, wherein the tap defines two beverage flow paths, wherein one of the beverage flow paths is provided with a flow restriction for inducing turbulence in the beverage flow for producing foam and comprises an outlet angled at between 0 and 60 degrees to the horizontal so that foam dispensed from the outlet does not fob an already dispensed bulk portion of the beverage.
  • FIG. 1 to 4 a system comprising a single dispense font 1, a cooling pod 10, a python 20, a remote primary cooler 23 and a secondary cooler 24.
  • the font 1 is located at a dispensation site, such as a bar area of a public house.
  • the primary cooler 23 is located at a remote site separated from the bar area, such as a cellar.
  • the python 20 extends between the dispensation site and the remote site. The location of the cooling pod 10 and secondary cooler 24 will be described below.
  • the remote primary cooler 23 comprises a housing 40 in which are located a cooling mechanism and a pumping mechanism.
  • the cooling mechanism comprises a water bath 41 through which one or more beverage supply line 33 passes.
  • the beverage supply lines are formed into a coiled configuration 42 within the water bath 41 to improve heat transfer between the water in the water bath and the beverage in the beverage supply lines.
  • the water bath 41 is itself cooled by an ice bank (not shown) which is formed by a refrigeration mechanism of known type.
  • the remote primary cooler 23 is sited in a cellar or back room.
  • the dispense font 1 comprises a housing 4 which is mountable to a bar or similar surface visible to the customer and on which is mounted a tap 2 of a type for dispensing draft beverages.
  • the tap 2 is connected to a beverage line 3 which runs through an interior of the housing 4 and extends from the housing 4 for connection to an external supply.
  • the cooling pod 10 as shown in Figure 2 , comprises a housing 11 defining a cooling chamber 18.
  • the cooling chamber 18 is provided with a water inlet 16 and a water outlet 17 for accommodating flow of water (or other cooling medium) through the cooling chamber 18.
  • a cooling coil 12 is provided within the cooling chamber 18 and connects between a beverage inlet 14 and a beverage outlet 15.
  • the beverage line 3 of the dispense font 1 connects to the beverage outlet 15 of the cooling pod 10.
  • the cooling pod 10 includes an elongated pipe 60 connected to the water inlet 16.
  • the pipe 60 has a closed end 63 at a distal end from the water inlet 16 and a number of holes 62 spaced along the length and around the circumference of the pipe 60.
  • the pipe 60 is located within the cooling coil 12 such that water exiting the holes 62 impacts as a spray on the inside surface of the coil 12.
  • the housing 11 is surrounded by insulation 19 to minimise heat transfer between the cooling pod 10 and the surroundings.
  • the insulation 19 is an expanded foam insulation.
  • the cooling pod 10 is located at the dispensation site. It may be located above or below bar level and may optionally be incorporated into the housing 4 of the dispense font 1.
  • the python 20 as shown in Figure 4 , comprises a conduit in which runs the one or more beverage supply lines 33 and cooling lines 21, 22.
  • the cooling lines comprise an outward cooling line 21 and a return cooling line 22.
  • An insulated sheath 25 of the python provides the python with structural integrity and also helps prevent heat transfer between the interior of the python 20 and the surroundings.
  • the python 20 contains sixteen beverage supply lines 33.
  • the number of beverage supply lines 33 within the python 20 can be varied depending on the number of dispense fonts 1 that require connection. In the embodiment shown in Figure 1 , for the sake of clarity, only a single beverage supply line 33 is shown.
  • the python 20 extends from the remote primary cooler 23 to the dispensation site.
  • the outward cooling line 21 extends from the water bath 41 and connects to the water inlet 16 of the cooling pod 10.
  • the beverage supply line 33 runs from the primary cooler 23 and connects to the beverage inlet 14 of the cooling pod 10.
  • the beverage supply lines 33 of pythons are 3/8" pipes.
  • the standard cooling line pipe in a python is 15mm diameter.
  • the cooling coil 12 of the cooling pod 10 is a 5/16" pipe which is connected to the 3/8" beverage supply line 33 at the beverage inlet 14 by means of a coupling 13.
  • the cooling lines 21, 22 of the python 20 and the cooling pod 10 together form a cooling circuit through which the cooling water flows continuously.
  • the dispense font 1 is further provided with a cooling loop 5 which comprises a font cooling line 9 which is connected to the water outlet 17 of the cooling pod 10.
  • the font cooling line 9 runs within the font housing 4 in close proximity to the beverage line 3.
  • the cooling loop further comprises a condensation mechanism 6 located at or near a front face of the housing 4.
  • 'front face' is meant the face of the dispense font 1 facing the customer in use.
  • the condensation mechanism 6, as shown in Figure 3 comprises a portion 8 of the cooling loop 5 and a condensation plate 50 in thermal contact with one another.
  • the thermal contact is achieved by the provision of bridge structures (not shown) spanning between the portion 8 of the cooling loop 5 and a rearward, interior surface of the condensation plate 50.
  • the bridge structures comprise raised portions of the rear face of the condensation plate which rest against the cooling loop portion 8.
  • the raised portions are shaped with a dished semi-circular cross-section to form a close interface with the rounded portion 8 of the cooling loop pipework.
  • the bridge structures, like the condensation plate are formed from a thermally conductive material, such as metal.
  • the bridge structures are formed as a single piece with the rest of the condensation plate 50 by means of, for example, a casting process.
  • the portion 8 of the cooling loop 5 is encompassed in an insulator 52 such as expanded polyurethane foam.
  • the insulator 52 is also formed in contact with the interior surface of the condensation plate 50 except for the locations of the bridge structures.
  • the insulator 52 also acts to compress the bridge structures of the condensation plate 50 and the portion 8 of the cooling loop 5 together to maintain a good thermal contact.
  • the insulator 52 can fill the entire void space of the housing 4 of the dispense font 1.
  • the cooling loop 5, comprising the font cooling line 9 and the portion 8 of the cooling loop 5 in thermal contact with the condensation plate 50, is preferably a single length of pipework such that a single continuous flow of water passes through the cooling loop 5 to effect cooling of the beverage line 3 and condensation on the condensation plate 50.
  • the font cooling line 9 and the condensation mechanism 6 are cooled in series by the same cooling water.
  • the font cooling line 9 may also form a portion, or the whole of, the portion 8 in thermal contact with the condensation plate 50.
  • the beverage line 3 may be cooled by more than one length of the cooling loop 5.
  • the beverage line 3 is cooled by inward and outward legs of the cooling loop 5.
  • the cooling loop 5 is preferably formed from 15mm pipes which are the same diameter as the cooling lines 21, 22 of the python 20.
  • the use of 15mm lines in the font 1 maximises the cooling effect of the cooling loop 5 and minimises flow restrictions, thus helping to ensure that the overall flow rate of cooling water through the cooling circuit is maintained above the required minimum level of 4 litres/minute.
  • the cooling loop 5 forms a part of the cooling circuit and is connected in series with the outward cooling line 21 and the return cooling line 22.
  • the cooling loop pipework extends from the dispense font 1 and connects to the return cooling line 22 of the python 20.
  • the entire flow of cooling water in the cooling circuit passes sequentially through the outward cooling line 21, cooling pod 10, cooling loop 5 and return cooling line 22.
  • the secondary cooler 24 is preferably a flash cooler as known in the art. However, the secondary cooler 24 in the present apparatus is used to cool the return cooling line 22 rather that the beverage supply line 33. As shown in Figure 1 , the return cooling line 22 passes through the secondary cooler 24 before reaching the primary cooler 23.
  • the secondary cooler 24 is a flash cooler type comprising a 15cc compressor and a 10 kg ice bank to ensure that it has sufficient capacity to cool the water in the return cooling line 22.
  • the cooling coil in the secondary cooler 24 is preferably 6 metres in length and 1 ⁇ 2 inch diameter.
  • the structure of the python 20 is not shown in Figure 1 as extending the entire way between the primary cooler 23 and the dispensation site. In practice, the python 20 would extend for the whole distance between the primary cooler and the dispensation site.
  • the overall python 20 may comprise separate lengths spanning between components of the apparatus. For example, one length of the python 20 could extend from the primary cooler 23 to the cooling pod 10. A separate length of python may be utilised to span any gap between the dispense font 1 and the secondary cooler 24. Either a portion of the python, or separate insulation may be used to insulate the lines as they extend from the cooling pod 10 to the dispense font 1.
  • a single length of python is preferably to cover the distance between the remote location and the dispensation site.
  • one or more sections of python may be required at the dispensation site to properly insulate individual lines and connections.
  • operation of the tap 2 causes beverage to be dispensed.
  • the beverage is dispensed by means of a gas-pressurised system (not shown) or alternatively by a pumping mechanism located in the cellar.
  • Beverage is passed from a storage keg (or similar container) in the cellar along the beverage supply line 33.
  • the beverage passes through the cooling coil 42 in primary cooler 23 where it is cooled by action of the water bath.
  • beverage entering the primary cooler will be at a temperature or around 12 degrees Celsius. On leaving the primary cooler 23 the temperature will typically be between 5 and 7 degrees Celsius..
  • the beverage flows through the python 20 to the dispensation site and is fed into the cooling pod 10 via coupling 13. At the point of reaching the cooling pod the beverage will typically have risen in temperature by around 1 to 2 degrees Celsius or so - and as a result be at a temperature of between 6 and 10 degrees Celsius.
  • the beverage flows through the cooling coil 12 where it is cooled by the cooling water in the surrounding cooling chamber 18.
  • the beverage temperature of between 3 and 5 degrees Celsius dependant on the entry temperature of the beverage, the flow rate of the beverage and the dispense rate of beverage (i.e. the number of beverages dispensed in a set time period) .
  • the beverage then flows through the beverage line 3 to the tap 2 where it is dispensed. Between the cooling pod 10 and the tap 2 the beverage temperature is maintained by thermal contact with the font cooling line 9 of the cooling loop 5.
  • the temperature of the beverage when dispensed from the tap 2 is typically between 3 and 5 degrees Celsius.
  • the temperature of the beverage between the cooling pod 10 and the tap 2 is substantially unchanged.
  • the pumping mechanism of the remote cooler 23 operates to pump cooling water from the water bath 41 of the primary cooler 23 through the cooling circuit of the outward cooling line 21, cooling chamber 18 of the cooling pod 10, cooling loop 5, and return cooling line 22. All of the cooling water in the outward cooling line 21 passes through the cooling chamber 18 of the cooling pod 10 and is then diverted through the cooling loop 5 before returning to the primary cooler 23 via the return cooling line 22.
  • the cooling water enters the cooling pod 10 via the elongate pipe 60. Since the pipe is closed at the distal end 63 the water is forced out radially in the form of a spray through holes 62 onto the cooling coil 12. Forming the cooling water into a spray in this way helps to minimise the pressure drop in the cooling circuit whilst maximising the cooling effect of the water.
  • a spray minimises the effect of the cooling pod's presence on the overall flow rate in the cooling circuit.
  • a spray invokes turbulence in the water within the cooling chamber 18 which prevents the formation of air locks or temperature layers within the chamber which would impair the cooling effect.
  • the cooling loop 5 serves the purpose of maintaining the temperature of the beverage in the beverage line 3 whilst in the dispense font 1 and before being dispensed by tap 2.
  • the cooling loop 5 comprises the condensation mechanism 6. Flow of the cooling water through the pipework 8 of the condensation mechanism 6 cools the pipework 8 and in turn the condensation plate 50 via the thermal contact between the pipework 8 and the condensation plate 50 by means of the bridge structures. Cooling of the condensation plate 50 causes condensation to form on the exterior face of the condensation plate 50 where water vapour in the atmosphere at the dispensation site condenses on the relatively cold surface of the condensation plate 50.
  • the return cooling line 22 is passed via the secondary cooler 24 on its way to the primary cooler 23.
  • the temperature of the cooling water in the return cooling line 22 is reduced from between 4 and 2 degrees Celsius to between 2 and 1 degrees Celsius.
  • Figure 6 shows a graph of dispensation temperature in degrees Celsius versus the number of beverages dispensed.
  • beverage at an initial temperature of 8 degrees Celsius on entering the cooling pod 10 was dispensed at a volume flow rate of 15 seconds per pint.
  • Drink numbers 1 to 9 were dispensed at an interval rate of one pint per minute.
  • Drink numbers 10 to 19 were dispensed at an interval rate of two pints per minute.
  • Cooling water was pumped through the cooling circuit at a flow rate of 5 litres per minute.
  • the dispensation temperature of the first nine beverages was between 4.5 and 4.3 degrees Celsius.
  • the dispensation temperature of the second nine beverages was between 4.3 and 4.7 degrees Celsius.
  • Figure 5 illustrates a second apparatus in which a plurality of dispense fonts 1 are connected to the primary cooler and the secondary cooler 24.
  • a plurality of dispense fonts 1 are connected to the primary cooler and the secondary cooler 24.
  • three dispense fonts 1a, 1b and 1c are connected.
  • the apparatus may be used for two, three or more dispense fonts.
  • the python 20 comprises an outward cooling line 21 and a return cooling line 22 as in the first embodiment and also a plurality of beverage supply lines 33a, 33b, 33c.
  • Each beverage supply line 33 feeds an individual cooling pod 10a, 10b, 10c, each of which are connected to a respective dispense font.
  • the outward cooling line 21 feeds the first cooling pod 10a to supply cooling water in the manner described above. Cooling water leaving the cooling pod 10a passes via the cooling loop 5a and passes back to the python 20.
  • the same cooling water is passed to the second cooling pod 10b and then through the second cooling loop 5b and so on down the line of dispense fonts.
  • the cooling water flows via the return cooling line 22 to the primary cooler via the secondary cooler 24 in the manner described above with reference to the first apparatus. It will be apparent that the cooling pods 10a, 10b and 10c and the cooling loops 5a, 5b and 5c are connected in series such that the entire flow of cooling water in the outward cooling line 29 passes through the cooling pods and cooling loops in turn before being returned to the primary cooler via the return cooling line 22.
  • FIG. 7 shows a comparative test of dispense temperatures from ten dispense fonts connected and supplied by a single python.
  • each dispense font in test A comprised a cooling pod 10 and cooling loop 5 as described above.
  • test B the dispense fonts at positions 1, 3, 5, 7 and 9 have no cooling mechanism and the dispense fonts at positions 2, 4, 6, 8 and 10 are provided with a cooling loop as known in the art.
  • the apparatus is able to maintain a higher uniformity and overall lower dispense temperatures than prior systems.
  • FIG 8 illustrates another apparatus. Like components to those described above in respect of the above apparatuses have been referenced by like numerals.
  • the third apparatus differs from the previous apparatus in that the cooling loop 5 is not formed in series with the cooling pod 10 and condensation mechanism 6. Instead the cooling loop 5 is formed as a branch off the cooling circuit of the python 20. As shown, the cooling loop branch-off point is located downstream of the cooling pod 10 and the condensation mechanism 6.
  • the cooling medium typically water
  • the cooling medium then returns to the python. At least a portion, but not necessarily all, of the cooling medium is subsequently diverted off into the cooling loop 5 where it aids maintenance of the beverage temperature in the beverage line 3.
  • Figure 9 illustrates a fourth apparatus. Like components in the apparatus to those described above in respect of the above apparatus have been referenced by like numerals.
  • the cooling loop 5 of the apparatus is formed as a branch.
  • the apparatus differs from the other apparatus in that the condensation mechanism 6 is separate from the primary cooling circuit of the python.
  • the condensation mechanism comprises pipework 88 connected to a secondary cooling circuit comprising a dedicated cooler 90 for cooling a glycol cooling medium. The outlet from the cooling pod 10 is directed immediately back to the python rather than entering the font housing 4.
  • glycol from the cooler 90 at a temperature of around -7 degrees Celsius is pumped through the pipework 88 and consequently the condensation plate 50 is subject to a high degree of cooling which results in the formation of ice and/or a frosting effect on the exterior of the plate 50.
  • a potential disadvantage of using glycol in a beverage font is that the low temperature of the glycol can lead to freezing of liquids in the beverage line 3. This is particularly the case when the beverage line is subjected to cleaning cycles using water.
  • the present font provides insulation between the cooling circuit used for the glycol, and the beverage line 3. Within the font housing the insulation 52 surrounding the condensation pipework 88 helps to prevent heat transfer from the beverage line 3.
  • the cooling water is circulated within the cooling loop 5 at the same time as glycol is circulated in the secondary cooling circuit.
  • the cooling water typically at around 2 degrees Celsius helps to maintain the cleaning water in the beverage line 3 at above its freezing point. As a result it is possible to clean the beverage line 3 without having to first switch off the glycol circulation or the cooling water circulation. This allows the ice or frost effect on the exterior of the font housing to be maintained even while cleaning the beverage line or lines.
  • the same beverage font housing 4 and internal pipework may be utilised for carrying out the modes of operation described with reference to Figures 8 and 9 simply by altering the external connections.
  • the condensation plate 50, pipework 8/88, insulation 52, cooling loop 5 and tap 2 may be unchanged.
  • the font may quickly and easily be turned from a condensating font into a font which produces a frozen ice effect.
  • the font may work as a standard non-condensing font wherein the cooling loop 5 and pipework 8/88 are not connected to external sources of cooling medium.
  • a single design of font can readily achieve a number of desired dispense effects and temperature profiles.
  • FIGS 10a to 14 illustrate a preferred embodiment of the present invention.
  • the font housing 4 is provided with a primary illumination source 103 at or near an upper region for illuminating a translucent branding panel.
  • the illumination source is a cold cathode tube running off a voltage of 400V RMS and drawing a current of 4mA.
  • the cold cathode tube 103 is connected to an electronic control module 105 by means of wiring 114.
  • the wiring 114 is water-proofed by the provision of plastic sheathing 104 and heat shrink water proof joints 115 where the wiring 114 connects to the tube 103.
  • the electronic control module 105 comprises an ABS housing 110 and base 112 as well as an electronics package 111 which controls operation of the tube 103 and transforms the incoming voltage from an external supply 106.
  • the housing of the control module 105 is moisture resistant and is located outside the housing 104.
  • the module 105 is located within the confines of the font mounting stanchion 101 and is protected from physical impacts by the legs of the mounting bracket 102.
  • the cold cathode tube 103 may be located within an acrylic block to improve its moisture resistance.
  • the font 1 is also provided with a secondary illumination source in the form of a LED panel 107 in a lower region of the font housing 104.
  • the LED panel 107 comprises a number of individual LEDs of known design mounted to a PCB 113.
  • the LED panel 107 is connected to the control module 105 by means of a water-proofed wiring connection 108.
  • the primary and secondary illumination sources can be used in combination or individually to create a range of visual effects.
  • the water resistant nature of the illumination sources and control module make the apparatus suitable for use with condensating fonts as described above (the condensation mechanism being omitted from Figures 10 to 14 for clarity) since, in general, moisture will be present within the font housing 4.
  • the taps 2 mounted to the dispense fonts 1 may be any suitable tap for dispensing draft beverage.
  • the taps 2 may be of the type described in the applicant's European patent EP 1138628 which are particularly suitable for dispensing beverages with foamed heads by means of utilising separate flow paths for the bulk portion of the beverage to be dispensed and the foamed portion of the beverage to be dispensed.
  • the tap defines two beverage flow paths, wherein one of the beverage flow paths is provided with a flow restriction for inducing turbulence in the beverage flow for producing foam and comprises an outlet angled at between 0 and 60 degrees to the horizontal so that foam dispensed from the outlet does not fob an already dispensed bulk portion of the beverage.
  • beverage flow path direction at the outlet may be substantially horizontal.
  • Two taps may be provided, each defining one of the beverage flow paths.
  • a single tap may be provided comprising a housing comprising two chambers defining the two beverage flow paths.
  • a valve may be provided upstream of the chambers movable from a first position in which an inlet to the chamber containing the flow restriction is closed and an inlet to the other chamber is open, to a second position in which the inlet to the chamber containing the flow restriction is open and the inlet to the other chamber is closed.
  • the flow restriction may be an orifice plate.
  • this tap is particularly suitable for use with the cooling systems of the present invention since it is able to dispense good quality, stable heads on beverages at low temperatures. Previously, formation of heads on cold beverages has been difficult.
  • the fonts 1 may also be provided with means for illuminating the electrical supply for illuminating fonts may be incorporated into the python 20 or may be provided by separate electrical supply provided locally at the dispensation site.
  • the fonts 1 may be provided each with a single dispense tap 2 or may have multiple dispense taps 2 provided.
  • a dispense font 1 may be in the form of a T-bar font known in the art.
  • the fonts 1 may be free flow fonts where control of the quantity dispensed is determined by the length of time that the tap 2 is opened or alternatively the fonts may be metered fonts whereby control of the volume of beverage dispensed is controlled by electronic means to allow for semi-automatic operation of dispensing.
  • the secondary cooler 24 may be located at the dispensation site or alternatively may be located at the remote site such that the return cooling line 23 is cooled immediately prior to the line connecting to the primary cooler 23. Where the secondary cooler 24 is located at the dispensation site, the secondary cooler 24 may be located after the terminal dispense font in the run of dispense fonts or may be positioned part way along the run of the dispense fonts, for example between fonts 1b and 1c as shown in Figure 5 .
  • the present invention has been described by way of example with the cooling medium passing through the primary cooling circuit of the python 20 being water. However other cooling mediums may be used.

Landscapes

  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Devices For Dispensing Beverages (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Non-Alcoholic Beverages (AREA)
  • Cleaning In General (AREA)

Claims (16)

  1. Getränkespender (1), umfassend ein Gehäuse (4) zum Anbringen an einem Schanktisch oder einer ähnlichen Oberfläche, einen oder mehrere Zapfhähne (2) zur Getränkeausgabe, eine oder mehrere Getränkeleitungen (3), die durch das Gehäuse geführt werden, um den Zapfhähnen Getränke zuzuführen, und eine Kühlleitung (8), die sich in thermischem Kontakt mit dem Gehäuse befindet und durch die bei Verwendung ein Kühlmedium fließen kann, um das Gehäuse (4) zu kühlen, damit es auf zumindest einem Teil (50) eines Außenbereichs des Gehäuses (4) zur Entstehung von Kondensation, Reif oder Eis kommt, wobei der Getränkespender (1) ferner eine Lichtquelle (103) umfasst, die in dem Gehäuse angebracht ist, um eine Markenanzeige oder -anzeigen des Getränkespenders zu beleuchten, dadurch gekennzeichnet, dass die Lichtquelle über ein elektronisches Steuermodul (105) mit einer Stromquelle verbunden ist, wobei das elektronische Steuermodul außerhalb des Getränkespendergehäuses angeordnet ist, und dass der thermische Kontakt zwischen der Kühlleitung (8) und dem Gehäuse (4) durch eine Vielzahl an Strukturverbindungen zwischen der Kühlleitung und dem Gehäuse bereitgestellt ist.
  2. Getränkespender nach Anspruch 1, worin die Lichtquelle (103) mit dem elektronischen Steuermodul (105) durch eine wasserdichte, isolierte Leitung (114) verbunden ist.
  3. Getränkespender nach Anspruch 1 oder 2, worin die Lichtquelle (103) eine Kaltkathodenlampe ist.
  4. Getränkespender nach einem der Ansprüche 1 bis 3, worin das elektronische Steuermodul (105) in einem wasserdichten Gehäuse angeordnet ist.
  5. Getränkespender nach einem der Ansprüche 1 bis 4, worin der Spender ferner eine Sekundär-Lichtquelle (107) umfasst, die in dem Getränkespendergehäuse (4) angeordnet und mit dem elektronischen Steuermodul (105) verbunden ist.
  6. Getränkespender nach Anspruch 5, worin die Sekundär-Lichtquelle (107) aus einer oder mehreren Leuchtdioden (LEDs) besteht.
  7. Getränkespender nach Anspruch 6, worin die Lichtquelle (103) in einem oberen Abschnitt des Gehäuses (4) und die Sekundär-Lichtquelle (107) in einem unteren Abschnitt des Gehäuses angeordnet ist.
  8. Getränkespender nach einem der Ansprüche 1 bis 7, worin die Lichtquelle (103) zumindest teilweise in einem Block aus Kunststoffmaterial, wie z.B. Acryl, eingeschlossen ist.
  9. Getränkespender nach einem der Ansprüche 1 bis 8, worin die Kühlleitung (8) in thermischem Kontakt mit nur einer Fläche des Gehäuses (4) steht, um nur eine gekühlte Fläche bereitzustellen, so dass bei Verwendung Kondensation, Reif oder Eis im Wesentlichen nur auf der gekühlten Fläche gebildet wird.
  10. Getränkespender nach Anspruch 9, worin die gekühlte Fläche des Gehäuses aus Metall besteht.
  11. Getränkespender nach Anspruch 9 oder 10, worin ein Isolationsmittel bereitgestellt ist, um die Kühlleitung von anderen Flächen des Gehäuses thermisch zu isolieren.
  12. Getränkespender nach Anspruch 11, worin das Isolationsmittel in Form einer festen Isolation vorliegt, die die Kühlleitung im Wesentlichen mit Ausnahme der Bereiche für den thermischen Kontakt zwischen der Kühlleitung und der gekühlten Fläche umschließt.
  13. Getränkespender nach Anspruch 12, worin die feste Isolation eine Schaumstoffisolation ist.
  14. Getränkespender nach einem der Ansprüche 1 bis 13, worin zumindest ein Teil der Kühlleitung in thermischem Kontakt mit der einen oder den mehreren Getränkeleitungen (3) steht, um das Getränk in der einen oder den mehreren Getränkeleitungen (3) zu kühlen.
  15. Getränkespender nach einem der Ansprüche 1 bis 13, umfassend eine separate Kühlleitung (5), die in thermischem Kontakt mit der einen oder den mehreren Getränkeleitungen (3) steht und durch die ein Kühlmedium fließen kann, um das Getränk in der einen oder den mehreren Getränkeleitungen (3) zu kühlen.
  16. Getränkespender nach einem der Ansprüche 1 bis 15, worin der eine oder die mehreren Zapfhähne (2) geeignet sind, um Getränke mit Schaumkronen auszugeben, indem getrennte Strömungswege für den Hauptanteil des auszugebenden Getränks und für den Schaumanteil des auszugebenden Getränks verwendet werden, wobei der Zapfhahn zwei Getränkeströmungswege definiert, wobei einer der Getränkeströmungswege mit einer Strömungsverengung ausgestattet ist, um eine Wirbelströmung in der Getränkeströmung zur Erzeugung von Schaum hervorzurufen, und einen Auslass umfasst, der in einem Winkel zwischen 0 und 60° zur Horizontalen angeordnet ist, so dass aus dem Auslass ausgegebener Schaum einen bereits ausgegebenen Hauptanteil des Getränks nicht zum Aufschäumen bringt.
EP05770628A 2004-08-13 2005-08-12 Verfahren und vorrichtung zum reinigen einer getränkeausgabeleitung Active EP1789358B1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
PL05770628T PL1789358T3 (pl) 2004-08-13 2005-08-12 Sposób i urządzenie do czyszczenia linii dystrybuującej napoje
SI200530393T SI1789358T1 (sl) 2004-08-13 2005-08-12 Postopek in naprava za čiščenje razdeljevalnega voda pijače
CY20081100986T CY1110396T1 (el) 2004-08-13 2008-09-11 Μεθοδος και διαταξη για τον καθαρισμο μιας γραμμης χορηγησης ποτων

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0418143A GB2417061C (en) 2004-08-13 2004-08-13 Method and apparatus for dispensing beverages
PCT/GB2005/003177 WO2006016180A2 (en) 2004-08-13 2005-08-12 Method and apparatus for cleaning a beverage dispensing line

Publications (2)

Publication Number Publication Date
EP1789358A2 EP1789358A2 (de) 2007-05-30
EP1789358B1 true EP1789358B1 (de) 2008-06-25

Family

ID=33017504

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05770628A Active EP1789358B1 (de) 2004-08-13 2005-08-12 Verfahren und vorrichtung zum reinigen einer getränkeausgabeleitung

Country Status (12)

Country Link
EP (1) EP1789358B1 (de)
AT (1) ATE399144T1 (de)
AU (1) AU2005271002B2 (de)
CY (1) CY1110396T1 (de)
DE (1) DE602005007756D1 (de)
DK (1) DK1789358T3 (de)
ES (1) ES2309780T3 (de)
GB (1) GB2417061C (de)
PL (1) PL1789358T3 (de)
PT (1) PT1789358E (de)
SI (1) SI1789358T1 (de)
WO (1) WO2006016180A2 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0418297D0 (en) * 2004-08-17 2004-09-15 Imi Cornelius Uk Ltd Improvements in or relating to beverage dispense systems
GB0603365D0 (en) * 2006-02-21 2006-03-29 Imi Cornelius Uk Ltd Beverage cooling

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5564602A (en) * 1995-02-27 1996-10-15 Cleland; James Beer-dispensing system and apparatus
GB2356447B (en) * 1999-09-04 2002-11-13 Hi Gene Brewery Prod Ltd Thermally regulated beverage dispense font
GB2349379B (en) * 2000-03-10 2001-03-14 Scottish & Newcastle Plc Improvements in or relating to a dispensing apparatus
GB0011638D0 (en) * 2000-05-16 2000-07-05 Sound Leisure Ltd A beer head
GB0104684D0 (en) * 2001-02-26 2001-04-11 Hi Gene Dispense Ltd Beverage promotion or dispensing device
CA2349089A1 (en) * 2001-05-28 2002-11-28 George Anderson Beverage dispense stanchion having an illuminated display
GB0121241D0 (en) * 2001-09-01 2001-10-24 Artlite Ltd Illumination apparatus
GB0129565D0 (en) * 2001-12-11 2002-01-30 Imi Cornelius Uk Ltd Improvements in or relating to apparatus for dispensing a beverage
GB2406328B (en) * 2003-08-22 2006-10-11 Imi Cornelius Improvements in or relating to beverage dispense

Also Published As

Publication number Publication date
GB2417061B (en) 2007-07-18
AU2005271002B2 (en) 2010-06-10
GB2417061A (en) 2006-02-15
ATE399144T1 (de) 2008-07-15
WO2006016180A2 (en) 2006-02-16
GB2417061C (en) 2011-08-10
GB0418143D0 (en) 2004-09-15
EP1789358A2 (de) 2007-05-30
WO2006016180A3 (en) 2006-05-26
PL1789358T3 (pl) 2009-02-27
CY1110396T1 (el) 2015-04-29
WO2006016180A8 (en) 2007-05-10
DK1789358T3 (da) 2008-10-06
AU2005271002A1 (en) 2006-02-16
PT1789358E (pt) 2008-09-09
SI1789358T1 (sl) 2008-12-31
ES2309780T3 (es) 2008-12-16
DE602005007756D1 (de) 2008-08-07

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