WO2005063608A2 - Verfahren und vorrichtung zum reinigen einer getränkeleitung in einer zapfanlage - Google Patents
Verfahren und vorrichtung zum reinigen einer getränkeleitung in einer zapfanlage Download PDFInfo
- Publication number
- WO2005063608A2 WO2005063608A2 PCT/EP2004/013880 EP2004013880W WO2005063608A2 WO 2005063608 A2 WO2005063608 A2 WO 2005063608A2 EP 2004013880 W EP2004013880 W EP 2004013880W WO 2005063608 A2 WO2005063608 A2 WO 2005063608A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- beverage line
- cleaning
- parameter
- beverage
- line
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
- B08B9/0321—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid
- B08B9/0325—Control mechanisms therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
-
- 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
Definitions
- the invention relates to a method for cleaning a beverage line in a dispenser, in which the beverage line is filled and cleaned with a cleaning agent.
- the invention further relates to a device for cleaning a beverage line in a dispenser, with a cleaning system for filling the beverage line with a cleaning agent.
- a method and a device of the type mentioned above are known, for example from DE 297 04 794 Ul.
- a tap head is first knocked off the beer keg in order to clean a beverage line of a beer dispensing system.
- water from a water pipe is first enriched with detergent in a detergent dispenser and then pressed into the beverage line leading to the tap.
- An impeller counter ensures that the entire beverage line is filled with the detergent mixture.
- the cleaning agent mixture is drained by opening another valve, and the beverage line is rinsed by repeatedly filling it with water.
- a beverage tank is connected to a tap via a beverage line, in which a conductivity meter, a valve unit, a pump and a cooling unit are arranged in the vicinity of the end opposite the beverage tank.
- the aforementioned units are bridged by means of a circulation line.
- a cleaning program known per se is carried out, in which a cleaning liquid is first poured into the beverage line, which then remains in the beverage line for a certain time and is then drained into a drain by displacement with water. Then the beverage line is filled with water several times and thereby rinsed. Finally, drink is let back into the drink line and with it the drink displaced water.
- the conductivity meter recognizes which liquid (beverage, cleaning fluid or water) is currently in the beverage line, specifically at the point at which the conductivity meter is located. The conductivity meter controls the transition from one step of the cleaning program to a next step.
- the known devices thus have the disadvantage that only the presence of a certain medium at a position of the beverage line is recognized.
- the extent of cleaning remains dependent on experience. Therefore, there is no guarantee that the entire beverage line has actually been completely cleaned.
- the extent of contamination of a beverage line depends on many factors, e.g. on the consistency of the respective beverage and the ambient temperature of the beverage line in the interval between the cleaning processes, i.e. on factors that cannot be reliably estimated even with experience.
- a further disadvantage of the known device is that, at the end of the rinsing process that concludes the cleaning process, it is also not ensured that the beverage line is now free of cleaning agent residues. There is therefore a risk that during the subsequent transition to dispensing operation, detergent residues will get into the dispensed beverage.
- the invention is therefore based on the object of developing a method and a device of the type mentioned at the outset such that the disadvantages mentioned are avoided.
- it is intended to enable beverage lines in to reliably and reproducibly clean to a predetermined extent and to prevent contamination of the beverage tapped after cleaning with residues of detergent.
- This object is achieved according to the invention in a method of the type mentioned at the outset by measuring a parameter reflecting the cleaning state of the beverage line during the cleaning of the beverage line and terminating the cleaning process when the parameter reaches a predetermined desired value.
- first means are provided in order to measure a parameter reflecting the cleaning state of the beverage line during the cleaning of the beverage line, and second means which end the cleaning process when the parameter reaches a predetermined one Setpoint reached.
- a controlled cleaning including rinsing takes place, in which the current status of the cleaning or rinsing is continuously recorded and the cleaning only ends, for example the cleaning agent is removed or the rinsing is interrupted when the cleaning or the rinsing meets a predetermined criterion.
- the parameter indicates an electrical conductivity.
- This measure has the advantage that a parameter was selected here that can be recorded in a simple and reliable manner by measurement technology, in the simplest case namely via a current / voltage measurement.
- the electrical conductivity of a medium located in the beverage line and the electrical conductivity of a coating covering an inner surface of the beverage line are preferably determined.
- This measure has the advantage that the size that is actually of interest for cleaning, namely the coating in the beverage line, is recorded directly.
- the parameter can also indicate a turbidity or a pH value of a medium in the beverage line.
- the cleaning status is therefore indirect, namely via the medium in the beverage line, e.g. the cleaning liquid is determined.
- Proven measuring elements and methods can be used.
- all of the aforementioned parameter variants can also be combined with one another in order to increase the reliability of the measurement.
- a particularly good effect is achieved according to the invention if a value representing a clean beverage line is determined in advance in the beverage line as the desired value.
- the user does not have to rely on empirical values, but rather can build on objectively determined measured values.
- a parameter of a medium in the beverage line is determined as the reference variable for the parameter.
- This measure has the advantage that a disturbance variable, namely the influence of the medium in the beverage line, can be eliminated when measuring the parameter.
- the setpoint can be derived from the electrical conductivity, the turbidity or the pH value.
- the parameter is measured as a first signal upstream and as a second signal downstream of an addition device for the cleaning agent, and a rinsing process which takes place at the end of the cleaning process is only ended when the signals are essentially the same.
- the first means contain at least two electrically conductive, but electrically insulated sections of the beverage line, and a first measuring circuit for measuring the electrical conductivity between the sections.
- This measure has the advantage that a particularly simple configuration for the first means, i.e. the sensor for measuring the parameter is created, which reflects the cleaning status of the beverage line.
- the arrangement can be easily integrated into an existing beverage line and is easy to maintain and inexpensive.
- an opacimeter or a pH meter can be used.
- third means are provided for determining a parameter of a medium in the beverage line in the beverage line.
- the third means contain a second measuring circuit and preferably have a further, electrically insulating section in the beverage line, which is preferably arranged between the two electrically conductive sections.
- Figure 1 is an extremely schematic view of a dispenser, which is equipped with a device according to the invention.
- Figure 2 is a schematic representation, partly in section, of an embodiment of a device according to the invention.
- FIG. 3 shows a first electrical equivalent circuit diagram to explain the device according to FIG. 1;
- FIG. 4 shows a second electrical equivalent circuit diagram to explain the device according to FIG. 1;
- FIG. 5 shows a schematic further embodiment of the invention.
- Figure 1 shows in a highly schematic manner a dispensing system 1, such as is installed in restaurants, for example.
- the dispenser 1 has a counter 2 which is installed in a dispensing room 3.
- On the counter 2 there is a tap 4 with which beverages, in particular carbonated beverages, in particular beer, can be tapped.
- a beverage line 5 leads down into a basement 6, in which there is a barrel 7 or several such barrels.
- the beverage line 5 is connected to the barrel 7 by means of a dispensing head 8.
- a cleaning system 9 is also connected, which in turn is connected to a water supply network via a water pipe 10.
- the cleaning system 9 serves to clean the beverage line 5. After it has been started up, it first ensures that the beverage residue located in the beverage line 5 is pressed back into the barrel 7 or emptied via the tap 4. Then the tap head 8 is knocked off the barrel 7.
- the cleaning system 9 now introduces a cleaning agent, namely a mixture of a cleaning agent concentrate and water, into the beverage line 5 until it is filled up to the tap 4.
- the cleaning agent is now left in the beverage line 5 for a certain time and then removed again, for example drained off. Then the beverage line 5 is rinsed several times with water. Then you can tap again, i.e. the beverage line 5 can be filled with the beverage.
- FIG. 2 12 as a whole denotes a first exemplary embodiment of a device according to the invention.
- the device 12 is located in the beverage line 5, as already indicated in FIG. 1 in the area of the counter as an enlarged section.
- the beverage line 5 has a first section 5a and a second section 5b. Both sections are electrically conductive and are preferably made of stainless steel. On the inner surface 14 of the pipeline 5, a coating 16 can be seen along its length, which consists of deposits of the respective drink.
- a pump 18 or a pressure vessel or a pressure line is provided in the cleaning system 9.
- a metering device 19 water from the water line 10 is mixed with a cleaning agent concentrate supplied via a line 20, and this mixture is introduced into the beverage line 5 by means of the pump 18 as cleaning agent, as indicated by an arrow 22.
- the valves and valve controls required for this are also the same for the sake of clarity little shown as the means for draining the detergent after cleaning.
- Controllable is of course to be understood as meaning all possible forms of metering, that is to say both continuous and clocked metering.
- the metering can of course also be carried out by corresponding valves in pressurized feed lines Beverage line 5 emptied at the start of the cleaning process and then filled with the cleaning agent, which then remains in the beverage line as long as the cleaning continues.
- a controllable pump 18 is used, as mentioned. This is connected with its control input 23 to the output of a controller 30.
- a predetermined setpoint voltage U s is fed to the controller 30 on the input side at a first input 32 and a measured actual value voltage U M is fed to a second input 34. From these two input signals U s and U M , the controller forms an actuating signal at its output, which is fed to the pump 18 via an output line 36.
- the measured actual value voltage U M is fed to the second input 34 via an output line 38 from an output terminal 40 of a sensor 42.
- the sensor 42 contains parts of the electrically conductive sections 5a and 5b of the beverage line 5 and an electrically insulating section 44 located between the sections 5a and 5b. It is important that the two sections 5a and 5b are not otherwise electrically connected to one another.
- first measuring point 46a at the upper section 5a in FIG. 1 and a second measuring point 46b at the lower section 5b.
- the measuring points 46a and 46b are connected to terminals 48a and 48b.
- a first current source 50 and a first current meter 52 are connected in series between these measurement points.
- a third measuring point 60a and a fourth measuring point 60b are arranged in the interior of the beverage line 5. These measuring points are led through terminals of the electrically insulating wall of the further section 44 to terminals 62a and 62b.
- a second current source 64 and a second ammeter 66 are connected in series between these terminals 62a and 62b.
- the device 12 operates as follows:
- a current is generated with the measuring circuit 46 - 52 described above, which flows from the first measuring point 46a through the conductive wall of the upper section 5a, the covering 16 thereon, through the medium in the beverage line 5, through the covering 16 in the region of the lower section 5b, through the conductive wall and to the second measuring point 46b.
- the electrical equivalent circuit diagram for this is shown in FIG. 3. It can be seen from this that if the electrical resistances of the electrical lines and the walls of the electrically conductive sections 5a, 5b are neglected, a series connection of three resistances is measured between the terminals 48a and 48b, namely the resistance R G of the beverage and twice the resistance of the Coverings R B. If R G is known, the resistance R B can be determined from a measurement of the current by means of the first ammeter 52. The actual value voltage U M is then generated in a manner known to the person skilled in the art as a function of the measured resistance R B , for example proportional to it.
- R G is not known, it is determined in an analogous manner with the measuring circuit 60-66 described above as second, by measuring the current flowing through the medium in the beverage line with the second ammeter 66.
- the electrical equivalent circuit between terminals 62a and 62b is shown in FIG. 3.
- beverage line 5 If the beverage line 5 is to be cleaned, the beverage residue still located in the beverage line 5 is first removed. The beverage line 5 is then filled with the cleaning agent 22 by switching on the pump 18.
- the cleaning agent 22 remains in the beverage line 5 in a conventional manner, ie the pump 18 is then switched off.
- the cleaning is carried out with the cleaning agent 22 running continuously, ie with the pump running continuously. The same applies if the beverage line is supplied with a valve control from an existing pressure line instead of with a pump 18.
- the value U M is continuously compared with the previously specified value U s .
- U M has reached the value of U s , the beverage line 5 is considered clean.
- the cleaning agent 22 is now pressed out or drained by pumps. A flushing then takes place, which is either carried out in a conventional manner, ie with a number of flushing processes based on empirical values, or likewise under the control of sensor 44 and controller 30.
- the electrical conductivity of the cleaning agent 22 can be determined if R G is not known.
- Figure 4 shows the associated equivalent circuit diagram. The value determined in this way can then be used to determine R B.
- the value of U M can be recorded when the measuring line 5 has been completely cleaned and can be specified as the target value U s in subsequent cleaning processes.
- FIG. 5 shows a further exemplary embodiment of the invention, which serves to ensure that after the rinsing process has ended, the beverage line is free of cleaning agent residues.
- the cleaning system 9 there is a first sensor 70 on the input side in the water line 10, behind which the detergent concentrate is metered in and the pump 18 is arranged (not shown).
- a second sensor 72 is located in an outlet line 71 leading to the beverage line 5 or to the tap head 8.
- the sensors 70 and 72 are preferably of the same type. For example, they work on the principle of conductivity measurement or turbidity or pH value measurement.
- the sensors generate signals S- L and S 2 , which, for example, reflect the electrical conductivity at the input or output of the cleaning system 9.
- the sensors 70 and 72 are connected to a comparator 74, for example a differential amplifier. Its output in turn is connected to a threshold value stage 76, which is controlled below a predeterminable threshold value voltage and preferably detects the input voltage “zero”. The threshold value stage 76 then actuates the switch 78, which ends the cleaning program.
- a comparator 74 for example a differential amplifier. Its output in turn is connected to a threshold value stage 76, which is controlled below a predeterminable threshold value voltage and preferably detects the input voltage “zero”. The threshold value stage 76 then actuates the switch 78, which ends the cleaning program.
- the signals S ⁇ and S 2 differ.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Devices For Dispensing Beverages (AREA)
- Cleaning In General (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04803572A EP1699731A2 (de) | 2003-12-23 | 2004-12-07 | Verfahren und vorrichtung zum reinigen einer getränkeleitung in einer zapfanlage |
US11/472,264 US20070006900A1 (en) | 2003-12-23 | 2006-06-21 | Method and device for cleaning a beverage conduit in a dispensing system |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10361565A DE10361565A1 (de) | 2003-12-23 | 2003-12-23 | Verfahren und Vorrichtung einer Getränkeleitung in einer Zapfanlage |
DE10361565.2 | 2003-12-23 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/472,264 Continuation US20070006900A1 (en) | 2003-12-23 | 2006-06-21 | Method and device for cleaning a beverage conduit in a dispensing system |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2005063608A2 true WO2005063608A2 (de) | 2005-07-14 |
WO2005063608A3 WO2005063608A3 (de) | 2005-12-15 |
Family
ID=34706670
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2004/013880 WO2005063608A2 (de) | 2003-12-23 | 2004-12-07 | Verfahren und vorrichtung zum reinigen einer getränkeleitung in einer zapfanlage |
Country Status (4)
Country | Link |
---|---|
US (1) | US20070006900A1 (de) |
EP (1) | EP1699731A2 (de) |
DE (1) | DE10361565A1 (de) |
WO (1) | WO2005063608A2 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1911382A1 (de) | 2006-10-11 | 2008-04-16 | Niro-Plan Ag | Vorrichtung zur Zubereitung und Ausgabe von Getränken mit Reinigungseinrichtung |
WO2012055542A3 (de) * | 2010-10-26 | 2012-06-28 | Krones Ag | Vorrichtung und verfahren zum überwachen der reinigung |
DE102013112130A1 (de) * | 2013-11-05 | 2015-05-07 | Melitta Professional Coffee Solutions GmbH & Co. KG | Verfahren zur Erkennung von Reinigungsmitteln in einer Getränkemaschine, insbesondere einer Kaffeemaschine |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010038319A1 (de) * | 2010-07-23 | 2012-01-26 | Krones Aktiengesellschaft | Verfahren und Vorrichtung zur Medienführung durch eine Behandlungsanlage für ein flüssiges Produkt |
US10279951B2 (en) * | 2015-02-03 | 2019-05-07 | Westrock Packaging Systems, Llc | Carton and carton blank |
EP3747559A1 (de) * | 2019-06-07 | 2020-12-09 | BAE SYSTEMS plc | Fliessfähiger schlick gefrorener partikel für eismolchung |
EP3980200B1 (de) * | 2019-06-07 | 2023-09-20 | BAE SYSTEMS plc | Fliessfähiger schlick gefrorener partikel für eismolchung |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2287296A (en) * | 1994-03-08 | 1995-09-13 | Pektron Ltd | Detecting passage of cleaning liquid in a beer line |
US6161557A (en) * | 1998-12-22 | 2000-12-19 | Showa Tansan Co., Ltd. | Method and apparatus for washing manufacturing line of drink or the like |
WO2001094040A1 (en) * | 2000-06-06 | 2001-12-13 | Rescontrol Oy | Method and system for cleaning beverage tubes and a detector unit used in the system |
US20020119574A1 (en) * | 1996-09-04 | 2002-08-29 | Berg Karel Van Den | Method and apparatus for cleaning a milk line system |
EP1382281A1 (de) * | 2002-07-19 | 2004-01-21 | Wmf Württembergische Metallwarenfabrik Ag | Einrichtung zur Erkennung von Reinigungsmittelzugabe bei einem Getränkeausgabegerät |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10337735A1 (de) * | 2003-08-11 | 2005-03-10 | Sparkasse Buehl | Zapfanlage für Getränke und Verfahren zum Reinigen einer Zapfanlage |
-
2003
- 2003-12-23 DE DE10361565A patent/DE10361565A1/de not_active Withdrawn
-
2004
- 2004-12-07 WO PCT/EP2004/013880 patent/WO2005063608A2/de not_active Application Discontinuation
- 2004-12-07 EP EP04803572A patent/EP1699731A2/de not_active Withdrawn
-
2006
- 2006-06-21 US US11/472,264 patent/US20070006900A1/en not_active Abandoned
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2287296A (en) * | 1994-03-08 | 1995-09-13 | Pektron Ltd | Detecting passage of cleaning liquid in a beer line |
US20020119574A1 (en) * | 1996-09-04 | 2002-08-29 | Berg Karel Van Den | Method and apparatus for cleaning a milk line system |
US6161557A (en) * | 1998-12-22 | 2000-12-19 | Showa Tansan Co., Ltd. | Method and apparatus for washing manufacturing line of drink or the like |
WO2001094040A1 (en) * | 2000-06-06 | 2001-12-13 | Rescontrol Oy | Method and system for cleaning beverage tubes and a detector unit used in the system |
EP1382281A1 (de) * | 2002-07-19 | 2004-01-21 | Wmf Württembergische Metallwarenfabrik Ag | Einrichtung zur Erkennung von Reinigungsmittelzugabe bei einem Getränkeausgabegerät |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1911382A1 (de) | 2006-10-11 | 2008-04-16 | Niro-Plan Ag | Vorrichtung zur Zubereitung und Ausgabe von Getränken mit Reinigungseinrichtung |
WO2012055542A3 (de) * | 2010-10-26 | 2012-06-28 | Krones Ag | Vorrichtung und verfahren zum überwachen der reinigung |
CN103221152A (zh) * | 2010-10-26 | 2013-07-24 | 克朗斯股份公司 | 装置和用于监视清洁的方法 |
DE102013112130A1 (de) * | 2013-11-05 | 2015-05-07 | Melitta Professional Coffee Solutions GmbH & Co. KG | Verfahren zur Erkennung von Reinigungsmitteln in einer Getränkemaschine, insbesondere einer Kaffeemaschine |
Also Published As
Publication number | Publication date |
---|---|
DE10361565A1 (de) | 2005-07-28 |
EP1699731A2 (de) | 2006-09-13 |
WO2005063608A3 (de) | 2005-12-15 |
US20070006900A1 (en) | 2007-01-11 |
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