EP4225688A1 - Distributeur d'eau et procédé de fonctionnement - Google Patents

Distributeur d'eau et procédé de fonctionnement

Info

Publication number
EP4225688A1
EP4225688A1 EP21787470.0A EP21787470A EP4225688A1 EP 4225688 A1 EP4225688 A1 EP 4225688A1 EP 21787470 A EP21787470 A EP 21787470A EP 4225688 A1 EP4225688 A1 EP 4225688A1
Authority
EP
European Patent Office
Prior art keywords
water
water dispenser
heater
carbon dioxide
boiler
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.)
Pending
Application number
EP21787470.0A
Other languages
German (de)
English (en)
Inventor
Jürgen JOHANN
Marcus DEPAUL
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.)
BWT Holding GmbH
Original Assignee
BWT Holding GmbH
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 BWT Holding GmbH filed Critical BWT Holding GmbH
Publication of EP4225688A1 publication Critical patent/EP4225688A1/fr
Pending 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
    • B67D1/0003—Apparatus or devices for dispensing beverages on draught the beverage being a single liquid
    • B67D1/0014—Apparatus or devices for dispensing beverages on draught the beverage being a single liquid the beverage being supplied from water mains
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/236—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids specially adapted for aerating or carbonating beverages
    • B01F23/2362—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids specially adapted for aerating or carbonating beverages for aerating or carbonating within receptacles or tanks, e.g. distribution machines
    • 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
    • B67D1/0003—Apparatus or devices for dispensing beverages on draught the beverage being a single liquid
    • B67D1/0009—Apparatus or devices for dispensing beverages on draught the beverage being a single liquid the beverage being stored in an intermediate container connected to a supply
    • 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
    • B67D1/0895—Heating arrangements
    • 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
    • B67D3/00—Apparatus or devices for controlling flow of liquids under gravity from storage containers for dispensing purposes
    • B67D3/0022—Apparatus or devices for controlling flow of liquids under gravity from storage containers for dispensing purposes provided with heating arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
    • B67D2210/00—Indexing scheme relating to aspects and details of apparatus or devices for dispensing beverages on draught or for controlling flow of liquids under gravity from storage containers for dispensing purposes
    • B67D2210/00028—Constructional details
    • B67D2210/00099—Temperature control
    • B67D2210/00102—Heating only

Definitions

  • Water dispenser or Beverage making machines may include a refrigerated carbonator through which carbonated water may be dispensed.
  • the carbonator comprises a cooled pressure vessel which is connected to a compressed gas cylinder which is filled with carbon dioxide.
  • a water dispenser can on the other hand have a boiler or flow heater, the so-called.
  • Thermoblock include, over the hot water or. hot drinks are provided .
  • a softening system can be used in an installation system, which exchanges calcium and magnesium for sodium via an ion exchanger and thus reduces the degree of hardness of the water.
  • Such a system is sold, for example, by the applicant under the trade name "BestMax®".
  • EP 2 094 611 B1 (BWT AG).
  • EP 3 507 247 B1 describes a method and a device for enriching water with zinc ions.
  • magnesium carbonates are still formed in the boiler. Furthermore, a sufficiently high removal of calcium is required to avoid scale in the boiler, which in turn is not necessary or not necessary for the cold water part of the water dispenser. would not be desirable at all, since calcium is also a physiologically important mineral.
  • the object of the invention is to reduce the stated disadvantages of the prior art.
  • the object of the invention is already achieved by a water dispenser and by a method for operating a water dispenser according to one of the independent claims.
  • the invention also relates to water dispensers in the broadest sense.
  • the invention further relates to water dispensers with or without a tank, which dispense hot and cold water.
  • the invention also relates to machines that use the water for the production of hot drinks, e.g. B. Tea or coffee, use and/or with which so-called soft drinks can be produced, i.e. carbonated sweetened drinks.
  • hot drinks e.g. B. Tea or coffee
  • soft drinks i.e. carbonated sweetened drinks.
  • the water dispenser includes a heater.
  • the heater is electrically operated.
  • this is also referred to as a thermal block.
  • the thermal block can be designed in particular as a boiler. According to another embodiment, an embodiment as a flow heater is also conceivable.
  • the invention is based on the finding that the carbon dioxide can be used to increase the carbon dioxide content and thus the carbon dioxide concentration in the boiler.
  • the water dispenser comprises a carbonator for dispensing carbonated water.
  • the carbonator is designed in particular as a cooled pressure vessel.
  • the carbonator can be connected to a CO2 compressed gas tank. About the compressed gas tank is possibly. Carbon dioxide is fed to the carbonator via a pressure reducer.
  • the carbon dioxide partly dissolves in the water present in the carbonator, partly the carbon dioxide forms carbonic acid, which lowers the pH value of the water.
  • the pressurized gas tank used for the carbonator can be used to supply carbon dioxide to the heater.
  • the carbon dioxide is introduced into the heater as a gas, in particular starting from the compressed gas container via a pressure reducer.
  • the carbon dioxide dissolved in water (together with dissociated, dissolved carbonic acid) is introduced into the heater. This can allow for easier dosing via a single dosing valve.
  • the metering valve is preferably designed as a switching valve.
  • the water dispenser therefore preferably includes a control device that regulates the introduction of carbon dioxide via the metering valve.
  • This refinement of the invention enables particularly simple control. For example, no separate water meter is required to measure the flow rate through the boiler, but this can be determined indirectly via the number of hot drinks taken.
  • the carbon dioxide metering can take place as a function of the heating of the thermal block.
  • a boiler is temperature controlled, i. H . if the machine is in stand-by mode, the boiler is heated so that a hot drink can be dispensed.
  • the controller clocks and thus counteracts cooling. If a hot beverage is dispensed, the water in the boiler cools down due to the inflowing water and the boiler has to be heated more via the control .
  • Control to change the amount of carbon dioxide per elapsed time unit and/or based on volume.
  • the setting is preferably based on the degree of hardness of the input water.
  • the water dispenser according to the invention includes adjustment means, such as a rotary wheel or a display, via which the degree of hardness of the water can be entered at the respective point of use.
  • adjustment means such as a rotary wheel or a display
  • an electronic control system calculates how much carbon dioxide is required and then adjusts the CC ⁇ release into the thermal block.
  • the water dispenser comprises two switching valves arranged in series, which can be controlled alternately.
  • the switching valves are designed in particular as solenoid valves.
  • a small amount of carbon dioxide can also be added to the thermal block in a very simple manner via two such switching valves.
  • An intermediate piece located between the switching valves is pressurized as soon as the switching valve located on the inlet side after the CO2 pressure tank opens.
  • a pressure-dependent amount of CO2 is introduced into this line section and when the output switching valve opens, a small amount of carbon dioxide is introduced depending on the volume of the line section and depending on the pressure in the thermal block and the carbon dioxide pressure present.
  • Compressed gas tanks and the two switching valves thus form a metering pump of very simple construction.
  • the arrangement also includes a cartridge for water treatment, via which water is supplied to the water dispenser.
  • Such cartridges are mostly cartridges that are used inline in a filter cartridge head, such as in the above system.
  • the filter candle head is usually located outside of the water dispenser. An integration of the cartridge in the water dispenser is also possible.
  • the ion exchange material can be loaded with magnesium or zinc with at least 30%, preferably at least 50%, of its total capacity.
  • the ion exchange material is preferably loaded with less than 60%, particularly preferably with less than 20%, of its capacity with hydrogen and/or sodium.
  • the ion exchanger can be completely loaded with magnesium.
  • Information on the loading of the ion exchanger always refers to its delivery status.
  • the invention also relates to a method for operating a water dispenser, in particular the water dispenser as described above.
  • the water dispenser includes a thermal block, in particular a boiler, for heating the water, carbon dioxide being supplied to the thermal block.
  • the carbon dioxide is preferably supplied from a compressed gas tank, via which a carbonator of the water dispenser is also supplied with carbon dioxide.
  • the pH in the thermal block is preferably adjusted to below 7.5, preferably to 6.0 to 7.5, particularly preferably from 6.5 to 7.0, by supplying carbon dioxide.
  • the pH value is not measured directly using a measuring device, but rather the metering in of carbon dioxide takes place based on time and/or volume, as described above.
  • a control device can dose the carbon dioxide in such a way that the pH values mentioned above are maintained.
  • the thermal block is preferably heated to at least 60° C., particularly preferably to at least 80° C., particularly preferably up to the boiling point.
  • the metering of carbon dioxide takes place preferably via two switching valves clocked in opposite directions, which are designed in particular as solenoid valves.
  • the invention also relates to a system for dispensing hot drinks and cold carbonated drinks, which includes the water dispenser described above and/or is designed to carry out the method described above.
  • Fig. 1 is a schematic view of a beverage dispensing system according to the invention, comprising a water dispenser according to the invention.
  • Fig. 3 shows another alternative embodiment.
  • Fig. 4 is a schematic view of an embodiment in which the water dispenser includes a faucet and a water heater.
  • FIG. 1 shows a schematic view of a system for dispensing hot and cold carbonated beverages.
  • Water is supplied to the water dispenser 1 via a water pipe 2 provided by the customer.
  • the water is routed through a water filter, which includes a filter candle head 3 installed inline in the water pipe 2 by the customer and a filter candle 4 inserted into the filter candle head 3 .
  • the water can also include an ion exchanger, for example, which releases magnesium ions in particular to the water to be prepared.
  • the water dispenser 1 includes a pump 5 via which the desired water can be pumped to an outlet 10 .
  • the line 2 branches into the flow paths 6a to 6c downstream of the pump 5.
  • the flow path 6a is designed for the delivery of hot water.
  • the water is routed via the boiler 7 and from there it reaches the outlet 10 .
  • the flow path 6b leads through a carbonator 8 .
  • the water present in the carbonator 8 is thus pressurized and, depending on the pressure, enriched with a different amount of carbonic acid (and correspondingly dissolved CO2).
  • the water present in the boiler 7 is also supplied with carbonic acid.
  • the carbon dioxide is supplied via the same compressed gas tank 11 from which the carbonator 8 is supplied with CO 2 .
  • the carbonic acid can be fed directly into the boiler 7 via the line 13 .
  • control device 14 These are controlled alternately via a control device 14 .
  • the line section 13a between the switching valves 15a and 15b serves as a pressure accumulator.
  • the switching valve 15a opens and the line section 13a fills with carbon dioxide.
  • the first switching valve 15a is then closed and the switching valve 15a downstream on the flow side is opened by the control device 14 .
  • the dosing is preferably based on the opening times of the switching valve 9a and/or time-controlled.
  • Fig. 2 shows an alternative embodiment of the invention. As shown here, the carbon dioxide from the CO2 compressed gas tank 11 does not have to be fed directly to the boiler 7 either.
  • the line 13 for supplying carbon dioxide runs directly to the line 2 in front of the pump 5 .
  • the amount of carbon dioxide introduced is as shown in FIG. 1 controlled by two switching valves.
  • the water is already enriched with a small amount of carbon dioxide when it is fed into the carbonator 8 .
  • the dosing preferably takes place within the water dispenser 1 .
  • Z. B. metering can also take place in the line path 6a (not shown).
  • Fig. 3 is a schematic view of another embodiment of the invention.
  • the carbon dioxide is not introduced directly, but rather dissolved in the water, or initiated in the form of carbonic acid.
  • a single switching valve 17 can easily be used in one of these embodiments to carry out the dosage.
  • the disadvantage is that water that has been cooled in the carbonator 8 has to be heated again.
  • Fig. 4 is a schematic representation of a water dispenser 1 which includes a faucet 19 and a water heater 18 .
  • the faucet can B. be designed as a mixer tap, as used in the household.
  • the line section 2b supplies the faucet 19 with cold water.
  • the line section 2a supplies the water tap 19 with hot water and runs via the water heater 18 .
  • the water heater comprises a boiler 7 and can in particular be designed as an under-sink unit.
  • carbon dioxide is introduced into the boiler 7 via two switching valves 15a, 15b arranged in series. Due to the reduced formation of scale as a result, the ion exchange material can be loaded with less hydrogen or sodium.
  • the existing capacity in the filter cartridge 4 can be used for dosing other ions, e.g. B. magnesium.
  • a softening system (not shown) is used, which is regenerated with a common salt solution, a higher degree of hardness of the treated water can be set without increased scale formation occurring.
  • the sodium content of the treated water can be reduced in this way.
  • the invention made it possible to improve the formation of scale in the thermal block of a water dispenser, in particular the water dispenser of a machine for preparing cold and hot drinks, in a very simple manner.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Devices For Dispensing Beverages (AREA)

Abstract

La divulgation concerne un distributeur d'eau, comprenant un carbonateur de préférence refroidi destiné à distribuer de l'eau gazeuse. Le distributeur d'eau comprend un Thermoblock, notamment une bouilloire, destiné à distribuer de l'eau chaude. Le carbonateur peut être relié à un cylindre à gaz comprimé CO2. Le distributeur d'eau comprend au moins une valve de dosage, notamment une valve de commande, qui permet d'acheminer du dioxyde de carbone dans le Thermoblock.
EP21787470.0A 2020-10-08 2021-10-08 Distributeur d'eau et procédé de fonctionnement Pending EP4225688A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102020126392.9A DE102020126392A1 (de) 2020-10-08 2020-10-08 Wasserspender sowie Verfahren zu dessen Betrieb
PCT/EP2021/077860 WO2022074193A1 (fr) 2020-10-08 2021-10-08 Distributeur d'eau et procédé de fonctionnement

Publications (1)

Publication Number Publication Date
EP4225688A1 true EP4225688A1 (fr) 2023-08-16

Family

ID=78085716

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21787470.0A Pending EP4225688A1 (fr) 2020-10-08 2021-10-08 Distributeur d'eau et procédé de fonctionnement

Country Status (4)

Country Link
US (1) US20240017981A1 (fr)
EP (1) EP4225688A1 (fr)
DE (1) DE102020126392A1 (fr)
WO (1) WO2022074193A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022134233A1 (de) 2022-12-20 2024-06-20 ACLARIS GmbH, Lindau, Zweigniederlassung Rebstein Volumenstromabhängige Mineralisierung in Getränkebereitern

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2536400A (en) * 1946-10-30 1951-01-02 Automatic Canteen Co Apparatus for treating and dispensing liquids
EP0102401B1 (fr) 1982-08-27 1987-07-22 Guldager Electrolyse International & Cie. Procédé pour la prévention de dépôts calcaires dans les systèmes aqueux
DE102006058223A1 (de) 2006-12-01 2008-06-05 Wp Engineering Ltd. Verfahren und Vorrichtung zur Anreicherung von Wasser mit Magnesium-Ionen
US10899645B2 (en) 2011-03-04 2021-01-26 Aquis Wasser-Luft-Systeme Gmbh, Lindau, Zweigniederlassung Rebstein Water conditioner for preventing or reducing mineral precipitation
DE102016116140A1 (de) 2016-08-30 2018-03-01 Bwt Ag Vorrichtung und Verfahren zur Aufbereitung von Trinkwasser sowie Verfahren zur Beladung eines Ionenaustauschermaterials mit Zinkionen

Also Published As

Publication number Publication date
WO2022074193A1 (fr) 2022-04-14
US20240017981A1 (en) 2024-01-18
DE102020126392A1 (de) 2022-04-14

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