EP1082267A1 - Drink-dispensing system with a sterilisation device - Google Patents
Drink-dispensing system with a sterilisation deviceInfo
- Publication number
- EP1082267A1 EP1082267A1 EP99953329A EP99953329A EP1082267A1 EP 1082267 A1 EP1082267 A1 EP 1082267A1 EP 99953329 A EP99953329 A EP 99953329A EP 99953329 A EP99953329 A EP 99953329A EP 1082267 A1 EP1082267 A1 EP 1082267A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- gas
- dispensing system
- outlet pipe
- blow
- liquid
- 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.)
- Granted
Links
- 238000004659 sterilization and disinfection Methods 0.000 title claims abstract description 36
- 238000010438 heat treatment Methods 0.000 claims abstract description 38
- 230000005855 radiation Effects 0.000 claims abstract description 21
- 238000001035 drying Methods 0.000 claims abstract description 17
- 239000007788 liquid Substances 0.000 claims description 60
- 230000035622 drinking Effects 0.000 claims description 39
- 238000000034 method Methods 0.000 claims description 19
- 235000013361 beverage Nutrition 0.000 claims description 17
- 230000001954 sterilising effect Effects 0.000 claims description 15
- 238000011010 flushing procedure Methods 0.000 claims description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 7
- 239000010453 quartz Substances 0.000 claims description 6
- 239000000835 fiber Substances 0.000 claims description 2
- 230000006698 induction Effects 0.000 claims description 2
- 230000001678 irradiating effect Effects 0.000 claims description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract description 38
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 23
- 239000001569 carbon dioxide Substances 0.000 abstract description 19
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract description 19
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract 1
- 239000011707 mineral Substances 0.000 abstract 1
- 238000005406 washing Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 108
- 238000007664 blowing Methods 0.000 description 16
- 238000010926 purge Methods 0.000 description 16
- 235000012206 bottled water Nutrition 0.000 description 12
- 239000000203 mixture Substances 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 239000004033 plastic Substances 0.000 description 6
- 238000011109 contamination Methods 0.000 description 5
- 230000002070 germicidal effect Effects 0.000 description 5
- 239000011261 inert gas Substances 0.000 description 5
- 244000005700 microbiome Species 0.000 description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 244000052616 bacterial pathogen Species 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 238000010079 rubber tapping Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 239000008399 tap water Substances 0.000 description 4
- 235000020679 tap water Nutrition 0.000 description 4
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 3
- 239000000645 desinfectant Substances 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 229910052709 silver Inorganic materials 0.000 description 3
- 239000004332 silver Substances 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- XYFCBTPGUUZFHI-UHFFFAOYSA-N Phosphine Chemical compound P XYFCBTPGUUZFHI-UHFFFAOYSA-N 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 239000003779 heat-resistant material Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910001369 Brass Inorganic materials 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 235000013405 beer Nutrition 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229920002313 fluoropolymer Polymers 0.000 description 1
- 239000004811 fluoropolymer Substances 0.000 description 1
- 235000011389 fruit/vegetable juice Nutrition 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229910052743 krypton Inorganic materials 0.000 description 1
- DNNSSWSSYDEUBZ-UHFFFAOYSA-N krypton atom Chemical compound [Kr] DNNSSWSSYDEUBZ-UHFFFAOYSA-N 0.000 description 1
- 235000015122 lemonade Nutrition 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 239000002557 mineral fiber Substances 0.000 description 1
- 229910052754 neon Inorganic materials 0.000 description 1
- GKAOGPIIYCISHV-UHFFFAOYSA-N neon atom Chemical compound [Ne] GKAOGPIIYCISHV-UHFFFAOYSA-N 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229910052756 noble gas Inorganic materials 0.000 description 1
- 150000002835 noble gases Chemical class 0.000 description 1
- 230000006911 nucleation Effects 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- 229910000073 phosphorus hydride Inorganic materials 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 1
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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
- B08B7/0035—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by radiant energy, e.g. UV, laser, light beam or the like
- B08B7/0042—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by radiant energy, e.g. UV, laser, light beam or the like by laser
-
- 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
- B08B9/0328—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 by purging the pipe with a gas or a mixture of gas and 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
- B67D1/04—Apparatus utilising compressed air or other gas acting directly or indirectly on beverages in storage containers
- B67D1/0406—Apparatus utilising compressed air or other gas acting directly or indirectly on beverages in storage containers with means for carbonating the beverage, or for maintaining its carbonation
-
- 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
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B2230/00—Other cleaning aspects applicable to all B08B range
- B08B2230/01—Cleaning with 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
- 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
- B67D2210/00002—Purifying means
- B67D2210/00013—Sterilising means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
- B67D—DISPENSING, DELIVERING OR TRANSFERRING LIQUIDS, NOT OTHERWISE PROVIDED FOR
- 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
- B67D2210/00002—Purifying means
- B67D2210/00013—Sterilising means
- B67D2210/00015—UV radiation
Definitions
- the invention relates to a dispensing system for drinking liquids with a disinfection device and a method for its operation.
- Tap water is used to refine tap water to table water, generally by cooling and adding carbon dioxide gas.
- Bottled water dispensers have recently been increasingly used in hospitals to supply patients with hygienically perfect water.
- the use of table water dispensers in the hospital area is described, for example, in "hospital review; issue 8, August 1996, 65th year, p. 573 ff; title: lowers costs and protects the environment: water from the tap".
- the object of the invention is to provide a beverage dispensing system in which back contamination of the drinking liquid, for. B. avoided by touching parts of the system and nucleation in the dispensing system is minimized.
- Dispensing systems are preferably bottled water dispensing systems.
- the liquid-carrying piping system of the beverage dispensing system, in particular the outlet connection is generally made of metal (e.g. stainless steel, copper, brass, aluminum or aluminum alloys), glass or plastic. Temperature-resistant plastic, in particular high-temperature resistant plastic, is preferably used as the plastic.
- the outlet connection or outlet pipe is generally understood to be the beverage line pipe (drinking liquid line) from or behind the dispensing valve to the line end for the beverage removal, in particular the end piece of the beverage line.
- Sterilization devices are devices on the dispensing system that reduce or inhibit the growth of germs in the dispensing system. Disinfection therefore generally means limiting the growth of microorganisms in the dispensing system, that is to say not only in the liquid, in particular by killing microorganisms or worsening living conditions for microorganisms.
- the disinfection devices preferably prevent or reduce back contamination of the dispensing system by microorganisms, that is to say microorganisms cannot penetrate into the dispensing system via the liquid outlet (for example a dispensing pipe or outlet pipe).
- the sterilization devices are preferably in
- the outlet area of the dispensing system that is, between the tapping valve (dispensing valve) and the tapping point (location of the liquid outlet; tapping pipe end or outlet pipe end).
- the sterilization device preferably contains a heating device
- Blow-out device radiation device, drying device, liquid or gas purging device.
- Combinations of two or more of the devices mentioned advantageously form the disinfection device.
- the sterilization device is advantageously controlled by means of a control unit.
- the control unit takes over the control of the sequence of work or
- Disinfection facilities generally work only for limited time intervals at certain times.
- the disinfection device or sub-devices is switched on at regular intervals of several hours (e.g. every 6 hours) or after a certain number of operations of the removal valve (e.g. after ten operations) or at certain times of the day or night Time interval operated.
- a heating device is a device for heating a part of the drinking liquid piping system of the dispensing system, preferably for heating an emptied part of the drinking liquid piping system. During the heating, temperatures in the range from 50 to 300 ° C., preferably in the range from 70 to 200 ° C. and particularly preferably in the range from 90 to 150 ° C. are generated on the pipe part. A temperature range of 70 to 90 ° C is preferred for disinfection and a temperature range of 140 to 150 ° C for sterilization.
- a blowout device is a device for blowing out drinking liquid from the entire drinking liquid piping system or part of the drinking liquid piping system of the dispensing system by means of a gas, e.g. B. air.
- a gas e.g. B. air.
- the blow-out device for emptying the pipeline after the extraction valve (nozzle valve) to the end of the pipeline (outlet opening).
- the blow-out device turns drinking liquid from the piping system removed.
- the blow-out device is usually gas with a temperature in the range of minus 20 to 300 ° C, z. B. gas from room temperature (z. B. 15 to 30 ° C, especially 20 to 25 ° C), preheated gas (z. B. 30 to 60 ° C) or hot gas (z. B.
- the gas is preferably passed through the relevant pipe part at high speed.
- the gas flow rate is e.g. B. more than 1 liter per minute, preferably at least 10 liters per minute.
- a blow-out process is advantageously carried out with a change of intervals with different gas flow rates, e.g. B. a time interval with low gas flow rate (e.g. 0.1 to 0.5 liters per minute over a time interval of 1 to 5 minutes), followed by a time interval with high gas flow rate (e.g. 10 liters per minute over a Time interval from 1 to 5 minutes, preferably 10 to 60 seconds).
- the gas is introduced into the pipeline at a pressure generally in a range from a slight excess pressure (for example 1.1 bar) to a pressure around 50 bar, preferably a pressure in the range 1.1 to 10 bar Dispensing system fed.
- a gas flushing device is a device for passing a gas through the entire T ⁇ 'nk Finekeits-piping system or a part of the drinking liquid piping system of the dispensing system.
- Germicidal or disinfectant gases such as carbon dioxide, ozone-containing air or oxygen, pure oxygen or phosphine-containing gases or hot steam are preferably used.
- the gases are used as cold, normal (room temperature) or heated gases.
- the gas purging device is advantageously automated, for. B. operated with a sequence program. When gas purging, low gas flow rates are preferably used (e.g. 0.1 to 1 liter per minute). When using disinfectant or germicidal gases, longer dwell times in the pipeline or a section of the pipeline are advantageous (e.g. 5 to 60 minutes).
- a drying device is a device for drying an emptied part of the drinking liquid piping system of the dispensing system.
- a drying device works, for example, by passing hot gas through the pipe part or by heating a pipe part, in particular the outlet pipe, in the case of gas purging.
- a liquid rinsing device is a device for passing a liquid (internal rinsing) through the entire drinking liquid piping system or part of the drinking liquid piping system of the dispensing system and / or for rinsing the outside (outer surface) of the outlet pipe (outside rinsing).
- the liquid usually does not correspond to the drinking liquid (exception: e.g. water).
- the liquid is generally at a temperature in the range from 0 to 100 ° C., preferably from 10 to 95 ° C., in particular from 70 to 95 ° C., and at a pressure in general in the range from 1 to 100 bar, preferably from 2 to 10 bar.
- the liquid is, for example
- Rinsing liquid or a cleaning liquid Germicidal or disinfectant liquids are also used, e.g. B. Carbon dioxide or ozone-containing liquids.
- the liquid rinsing device is advantageously automated, e.g. B. program controlled, operated.
- a rinsing process with liquid usually takes 5 seconds to 60 minutes, preferably 10 seconds to 10 minutes, in particular 10 seconds to 5 minutes. For example, rinsing with cold or hot water for indoor and outdoor rinsing.
- a radiation device is a device for irradiating a part of the drinking liquid piping system (interior or exterior of the
- the radiation is carried out, for example, with UV radiation, beta rays, gamma rays, radioactive radiation or particle beams. Irradiation is preferably carried out with UV radiation.
- part of the piping system is equipped with a quartz tube or quartz window, so that the radiation from a UV lamp
- Pipe section can penetrate.
- the UV radiation is advantageously conducted into a tube section by means of fiber optics (e.g. quartz glass fibers), the Equipment of the pipeline with quartz tube is no longer required.
- Irradiation in the pipe sections is preferably carried out on liquid-emptied pipe sections (e.g. emptied outlet pipe), in particular on liquid-emptied and dried pipe sections.
- the outlet pipe is advantageously irradiated on the inside and / or outside (preferably with UV radiation).
- UV lamp As a UV lamp z. B. UV lamps are used, which are usually used for disinfection, disinfection or sterilization (z. B. mercury vapor lamps, gas discharge lamps).
- the radiation device is generally not in continuous operation, but takes place at predetermined times for a limited period of time (time interval of, for example, 1 to 10 minutes).
- the operation, in particular a program operation, of the radiation device is controlled by a control unit, preferably a central control unit.
- the heater will now be explained.
- a heating device at the outlet connection of a beverage dispensing system preferably contains a heating element which is based on electrical resistance wire heating or induction.
- the heating element is particularly preferably formed by winding a resistance heating wire around the tube of the outlet connection (for example as a heating coil).
- the heating device on the outlet nozzle or outlet pipe is preferably used to heat the emptied outlet pipe.
- the heated pipe parts consist of a corresponding temperature-resistant material such as metal, ceramic, glass or special, suitable plastic depending on the intended working temperature of the heating device.
- the heating device preferably contains an encapsulated heating element.
- the heating wire is made of a heat-resistant material such as a heat-resistant, in particular high-temperature-resistant plastic (e.g. fluoropolymer such as PTFE), ceramic, glass fiber, mineral fiber or a metal part surround.
- the heat-resistant material serves e.g. B. for protection during operation and for temperature insulation to the outside.
- the complete tap, with heating element and outlet connection, with a closed conversion is particularly advantageous.
- the heating device generally contains a control and regulating device for the temperature and a switching unit that controls the duration of the heating process.
- the switching unit is a time switch control.
- Heating the outlet nozzle is preferably used for drying. By drying the outlet nozzle, growth of germs in the outlet pipe is counteracted.
- the heating of the outlet connection can advantageously also be carried out in such a way that the temperature is selected so that sterilization takes place.
- the heater can e.g. B. be operated so that heating intervals for drying and heating intervals for sterilization take place in different sequences, for. B. alternating or dry intervals during the day and one or more sterilization intervals at night.
- Another object of the invention is a method for operating beverage dispensing systems, characterized in that the outlet line or the outlet connection of the dispensing system is temporarily dried with the aid of a heating device.
- the drying process is advantageously supported in that a gas is passed through the tubular parts to be dried (the drinking liquid line), with which drinking liquid is expelled or blown out of the drinking liquid line or parts of the drinking liquid line. Gas flushing devices and blow-out devices are explained below.
- Gas is understood to be gases, gas mixtures or gaseous substances or mixtures of substances.
- Gases or gas mixtures are, for example, air, inert gases or reactive gases (e.g. sterilization gases or germicidal gases).
- Inert gases are noble gases such as helium, neon, argon, krypton and xenon or inert gases such as nitrogen.
- Carbon dioxide can be considered an inert gas.
- Reactive gases, in particular sterilization gases are, for example, oxygen or gases containing ozone.
- Gaseous substances or mixtures of substances are, for example, water vapor or gas mixtures containing water vapor.
- Steam can be produced, for example, with the help of commercially available steam generators. The steam preferably has a temperature of at least 120 ° C.
- the gas can be a gas mixture which contains air, inert gases or reactive gases. Carbon dioxide or gas mixtures containing carbon dioxide are preferably used as the gas. It is advantageous to use carbon dioxide as the gas, since carbon dioxide is usually present in dispensing systems for carbonating the drinking liquid and also has germicidal properties. As a rule, carbon dioxide is provided in pressurized gas containers.
- Drinking liquids are beverages such as water (e.g. table water), lemonade, beer, juice or juicy beverages.
- the gas is generally used for blowing out at temperatures in the range from minus 20 ° C to plus 300 ° C, for example as a cooled gas (minus 20 to 15 ° C), at room temperature (above 15 to around 30 ° C, usually 20 to 25 ° C), as a heated gas (over 30 to around 70 ° C) or as a heated gas (over 70 ° C to around 150 ° C).
- the temperature of the gas does not have to be the same for all flushing or blowing out processes.
- blow-out intervals with gas from room temperature can take place after each tap and blow-out or Gas purging intervals with hot gas take place at certain times (e.g. once a day).
- the blowing out of drinking liquid from the outlet pipe or from line parts of the dispensing system preferably takes place after the removal of
- Drinking liquid from the beverage dispensing system in particular immediately after the drinking liquid has been removed (after the dispensing process has ended).
- the blow-out device serves to empty (remove) the drinking liquid from lines or line parts for guiding the drinking liquid.
- Line parts are, for example, line parts dispensing drinking liquid (dispensing pipe, outlet pipe or outlet connection) or line parts in the end region of the drinking liquid line of a dispensing system.
- the blow-out device can also be used advantageously for emptying the entire drinking liquid line in a dispensing system.
- hot gas is advantageously used, e.g. B. hot air or hot carbon dioxide gas.
- the gas is preferably passed at high speed through the drinking liquid line or a part of the drinking liquid line during the blow-out process.
- the Ausblasein ⁇ chtung (like the gas purging device) usually contains a gas source (z. B. compressed gas container with compressed gas and / or a steam generator), a connection of the gas source with the
- Drinking liquid line a shut-off device for the gas supply (e.g. on / off valve or controllable valve) and preferably a control unit for the gas supply into the drinking liquid line, which preferably regulates a valve for the gas supply.
- the gas can be supplied to the drinking liquid line at various points, e.g. B. at the beginning of the line or in the course of the drinking liquid line, in particular on or behind the tap (nozzle) in the outlet pipe (outlet nozzle or outlet pipe).
- the line parts of the drinking liquid line are blown out from the gas supply point to the end of the line (outlet).
- the blowing out can also serve to empty certain system components (individual parts or combinations), e.g. B. the carbonator, the filter or other parts in a beverage dispensing system. The emptying does not always have to take place via the outlet pipe.
- blowing out can be advantageous for blowing out (and flushing with gas).
- water vapor can be used in a first step and a gas such as carbon dioxide in a second step.
- a gas such as carbon dioxide
- emptying and sterilization can be carried out, with which drying is achieved with the carbon dioxide treatment.
- the reverse process 1. carbon dioxide treatment / 2. steam treatment, is also useful.
- the blowing out with two or more gases can also be carried out in sequences, that is to say a certain number of blowing out operations with one gas, followed by a certain number of blowing out operations with another gas.
- a sequence of carbon dioxide blowing operations can be followed by a sequence of one or more water vapor washes.
- beverage dispensing system according to the invention is explained below using the example of a bottled water dispensing system as the preferred type of system.
- the designs can be transferred to other types of beverage dispensing systems.
- the gas preferably carbon dioxide, is introduced at
- the blowing out of water from the outlet pipe or other lines carrying drinking liquid after the bottled water has been removed prevents germs from growing in the outlet pipe or the pipe system and causing a Contamination of the bottled water dispensing system and the bottled water supply in the dispensing system occurs via the outlet pipe.
- the outlet pipe or the outlet connection is particularly preferably dried with the blow-out process and heated simultaneously or subsequently by means of the heating device. Blow-out and heating can also be decoupled. For example, blow-out processes with heating and blow-out processes without heating can be carried out in specific time sequences, which is preferably brought about by a controller or a control program.
- the blow-out process (or other sterilization processes) is usually triggered mechanically, electrically, electrically / electronically or under program control.
- the triggering of the blow-out process is coupled with the (closing) actuation of the tap.
- the blow-out process is particularly preferably controlled via a solenoid valve which is opened and closed for the gas supply into the outlet pipe.
- the solenoid valve for the gas supply is preferably time or sensor controlled.
- the solenoid valve is controlled by means of an electronic time control.
- a sensor control is set up, for example, via a conductivity sensor.
- the solenoid valve can be opened, for example, via a contact on the tap. When the outlet pipe is emptied or dried, the solenoid valve is then closed (blowing out directly after each plug).
- the blow-out of the outlet pipe can also take place at certain times instead of directly after each spigot (time-controlled blow-out), e.g. B. 5, 10, 15 or 30 minutes after tapping (after standing).
- time-controlled blow-out can also advantageously be combined with the blow-out triggered by the peg.
- the outlet pipe can be blown out at a certain time each day and additionally directly after the plug.
- the heating intervals are, for example, every hour (e.g. at intervals of 3, 4, 5, 6, 12 or 24 hours).
- a time interval of the gas supply of less than one minute is usually sufficient, for example a time interval in the range from 1 to 30 seconds, preferably 3 to 20 seconds and particularly preferably 5 to 10 seconds.
- the gas is generally fed to the outlet pipe at a pressure of 1 bar to 10 bar, preferably 1 bar to 3 bar and particularly preferably 1.2 bar to 2 bar.
- the tap is operated mechanically, electrically and / or electronically.
- the tap is electrical / electronic, e.g. B. operated by pressing a button.
- the outlet pipe generally consists of metal such as stainless steel, copper, copper-containing alloys, copper-coated metals, silver, silver-containing alloys or silver-coated metals or contains or consists of glass or quartz.
- the outlet pipe generally has an inner diameter in the range from 1 mm to 10 mm, preferably 2 mm to 5 mm.
- the outlet pipe generally has a length (section from the extraction valve to the outlet pipe end) in the range from 1 cm to 25 cm. Usually the length is 5 to 10 cm.
- Fig. 1 shows a diagram of a bottled water system with gas supply for blowing (or purging with gas) of the outlet pipe or other line parts for water management.
- tap water (2) is fed through a filter (12) and the so-called carbonator (11) in the bottled water dispensing system (1) via the three-way tap (5) to the outlet pipe (6) on which the bottled water (13) is filled.
- carbon dioxide is used as the gas (purge gas), which comes from the gas source (7)
- Compressed gas bottle with cylinder valve (8) and pressure reducer (9) via which gas line (10) is removed.
- the gas is fed to the carbonator (11) and the outlet pipe (6).
- the tap (5) is preferably a three-way valve, via the z. B. the gas enters the outlet pipe (6) via a solenoid valve control.
- the gas purging of the outlet pipe (6) for blowing out water takes place, for. B. directly after each cone or after a certain standing time (e.g. 5 minutes after each cone or at a specific time of day).
- the gas supply for the gas purging is preferably carried out via the three-way valve (5).
- the gas can be supplied via the three-way valve (3) or (4) (these alternative routes are shown by dashed gas routes).
- the water pipes in particular the outlet pipe (6), preferably have small pipe cross sections (z. B. 1 mm to 5 mm) to allow high gas flow rates when flushing with gas and to keep the amount of water discarded low.
- the three-way valve (3, 4 or 5) is switched over (opened) mechanically, electrically, electronically or in combination (e.g. mechanically / electrically or mechanically / electronically) and the relevant one for the blow-out process
- the gas is preferably supplied via a controlled solenoid valve.
- An additional heating device and / or radiation device are preferably arranged in the area of the outlet pipe 6.
- filters e.g. particle filter, sterile filter
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Apparatus For Disinfection Or Sterilisation (AREA)
- Devices For Dispensing Beverages (AREA)
- Pretreatment Of Seeds And Plants (AREA)
Abstract
Description
Schankanlage mit EntkeimungseinrichtungDispensing system with disinfection device
Die Erfindung betrifft eine Schankanlage für Trinkflüssigkeiten mit einer Entkeimungseinrichtung und ein Verfahren zu deren Betrieb.The invention relates to a dispensing system for drinking liquids with a disinfection device and a method for its operation.
Mit Hilfe von Tafelwasserschankaniagen wird Leitungswasser zu Tafelwasser verfeinert, im allgemeinen durch Kühlung und Versetzen mit Kohlendioxidgas. Tafelwasserschankaniagen werden in letzter Zeit vermehrt in den Krankenhäusern zur Versorgung von Patienten mit hygienisch einwandfreiem Wasser eingesetzt. Der Einsatz von Tafelwasserschankaniagen im Krankenhausbereich wird beispielsweise in "krankenhaus umschau; Heft 8, August 1996, 65. Jahrgang, S. 573 ff; Titel: Senkt Kosten und schont die Umwelt: Wasser aus der Leitung" beschrieben.Tap water is used to refine tap water to table water, generally by cooling and adding carbon dioxide gas. Bottled water dispensers have recently been increasingly used in hospitals to supply patients with hygienically perfect water. The use of table water dispensers in the hospital area is described, for example, in "hospital review; issue 8, August 1996, 65th year, p. 573 ff; title: lowers costs and protects the environment: water from the tap".
Bei Tafelwasserschankaniagen kommt es bei der Wasserentnahme durchWith bottled water dispensers it comes through when water is withdrawn
Patienten zu einer Kontamination des Wassers der Zapfanlage. Bei Berührung von Anlageteiien im Zapfbereich, insbesondere nach Beendigung des Zapfvorganges, können Keime in die Anlage (z. B. über Zapfrohr oder Auslaßrohr) gelangen und sich dort vermehren (Rückkontamination).Patient contamination of the water from the dispenser. When touching parts of the system in the tap area, especially after the tap process has ended, germs can get into the system (e.g. via the tap pipe or outlet pipe) and multiply there (back contamination).
Aufgabe der Erfindung besteht in der Schaffung einer Getränkeschankanlage, bei der eine Rückkontamination der Trinkflüssigkeit, z. B. durch Berührung von Teilen der Anlage, vermieden und eine Keimbildung in der Schankanlage minimiert wird.The object of the invention is to provide a beverage dispensing system in which back contamination of the drinking liquid, for. B. avoided by touching parts of the system and nucleation in the dispensing system is minimized.
Gelöst wurde die Aufgabe durch eine Schankanlage (Getränkeschankanlage) für Trinkflüssigkeiten mit den in Anspruch 1 angegebenen Merkmalen.The object was achieved by a dispensing system (beverage dispensing system) for drinking liquids with the features specified in claim 1.
Schankanlagen (Getränkeschankanlagen) sind vorzugsweise Tafelwasserschankaniagen. Das flüssigkeitsführende Rohrleitungssystem der Getränkeschankanlage, insbesondere der Auslaßstutzen, ist in der Regel aus Metall (z. B. Edelstahl, Kupfer, Messing, Aluminium oder Aluminiumlegierungen), Glas oder Kunststoff. Als Kunststoff wird vorzugsweise temperaturbeständiger Kunststoff, insbesondere hochtemperaturbeständiger Kunststoff, eingesetzt. Als Auslaßstutzen oder Auslaßrohr wird im allgemeinen das Getränkeleitungsrohr (Trinkflüssigkeitsleitung) vom oder hinter dem Zapfventil bis zum Leitungsende für die Getränkeentnahme verstanden, insbesondere das Endstück der Getränkeleitung.Dispensing systems (beverage dispensing systems) are preferably bottled water dispensing systems. The liquid-carrying piping system of the beverage dispensing system, in particular the outlet connection, is generally made of metal (e.g. stainless steel, copper, brass, aluminum or aluminum alloys), glass or plastic. Temperature-resistant plastic, in particular high-temperature resistant plastic, is preferably used as the plastic. As The outlet connection or outlet pipe is generally understood to be the beverage line pipe (drinking liquid line) from or behind the dispensing valve to the line end for the beverage removal, in particular the end piece of the beverage line.
Entkeimungseinrichtungen sind Einrichtungen an der Schankanlage, die ein Wachstum von Keimen in der Schankanlage vermindern oder hemmen. Entkeimung bedeutet also allgemein eine Begrenzung des Wachstums von Mikroorganismen in der Schankanlage, also nicht nur in der Flüssigkeit, insbesondere durch ein Abtöten von Mikroorganismen oder Verschlechterung der Lebensbedingungen für Mikroorganismen. Vorzugsweise verhindern oder vermindern die Entkeimungseinrichtungen eine Rückkontamination der Schankanlage durch Mikroorganismen, das heißt ein Eindringen von Mikroorganismen in die Schankanlage über den Flüssigkeitsauslaß (z. B. Zapfrohr oder Auslaßrohr). Die Entkeimungseinrichtungen werden vorzugsweise imSterilization devices are devices on the dispensing system that reduce or inhibit the growth of germs in the dispensing system. Disinfection therefore generally means limiting the growth of microorganisms in the dispensing system, that is to say not only in the liquid, in particular by killing microorganisms or worsening living conditions for microorganisms. The disinfection devices preferably prevent or reduce back contamination of the dispensing system by microorganisms, that is to say microorganisms cannot penetrate into the dispensing system via the liquid outlet (for example a dispensing pipe or outlet pipe). The sterilization devices are preferably in
Auslaßbereich der Schankanlage, das heißt zwischen Entnahmeventil (Zapfventil) und Entnahmestelle (Stelle des Flüssigkeitsaustritts; Zapfrohrende oder Auslaßrohrende), angeordnet.The outlet area of the dispensing system, that is, between the tapping valve (dispensing valve) and the tapping point (location of the liquid outlet; tapping pipe end or outlet pipe end).
Die Entkeimungseinrichtung enthält vorzugsweise eine Heizeinrichtung,The sterilization device preferably contains a heating device,
Ausblaseinrichtung, Strahlungseinrichtung, Trocknungseinrichtung, Flüssigkeitsoder Gas-Spüleinrichtung. Vorteilhaft bilden Kombinationen von zwei oder mehreren der genannten Einrichtungen die Entkeimungseinrichtung. Beispielsweise werden eine Heizeinrichtung und eine Ausblaseinrichtung oder eine Heizeinrichtung, Strahlungseinrichtung und eine Ausblaseinrichtung oder eine Strahlungseinrichtung und eine Ausblaseinrichtung oder eine Heizeinrichtung und eine Trocknungseinrichtung oder eine Heizeinrichtung und eine Flüssigkeits- Spüleinrichtung oder eine Gas-Spüleinrichtung und eine Strahlungseinrichtung oder eine Trocknungseinrichtung und eine Strahlungseinrichtung oder eine Flüssigkeits- und Gas-Spüleinrichtung oder eine Heizeinrichtung, Gas- Spüleinrichtung, Ausblaseinrichtung, Trocknungseinrichtung und Flüssigkeits- Spüleinrichtung oder eine Heizeinrichtung, Gas-Spüleinrichtung, Ausblaseinrichtung, Trocknungseinrichtung, Strahlungseinrichtung undBlow-out device, radiation device, drying device, liquid or gas purging device. Combinations of two or more of the devices mentioned advantageously form the disinfection device. For example, a heater and a blow-out device or a heater, radiation device and a blow-out device or a radiation device and a blow-out device or a heater and a drying device or a heating device and a liquid purging device or a gas purging device and a radiation device or a drying device and a radiation device or a liquid and gas purging device or a heating device, gas purging device, blow-out device, drying device and liquid purging device or a heating device, gas purging device, Blow-out device, drying device, radiation device and
Flüssigkeits-Spüleinrichtung kombiniert.Combined liquid rinsing device.
Die Entkeimungseinrichtung wird vorteilhaft mittels einer Steuereinheit gesteuert. Die Steuereinheit übernimmt die Steuerung des Ablaufes der Arbeits- oderThe sterilization device is advantageously controlled by means of a control unit. The control unit takes over the control of the sequence of work or
Funktionsschritte der Entkeimungseinrichtung und bei Einsatz einer Kombination von zwei oder mehreren Einrichtungen zur Entkeimung vorteilhaft die Funktionsschritte der einzelnen Einrichtungen und das Zusammenspiel der Einrichtungen. Vorteilhaft erfolgt die Steuerung über ein Steuerprogramm, das die Programmabläufe vorgibt. Die Entkeimungseinrichtung oder enthalteneFunctional steps of the disinfection device and, if a combination of two or more devices for disinfection are used, the functional steps of the individual devices and the interaction of the devices are advantageous. The control is advantageously carried out via a control program which specifies the program sequences. The disinfection device or contained
Einrichtungen zur Entkeimung arbeiten in der Regel nur für begrenzte Zeitintervalle zu bestimmten Zeiten. Beispielsweise wird die Entkeimungseinrichtung oder Teileinrichtungen in regelmäßigen Abständen von mehreren Stunden (z. B. alle 6 Stunden) oder nach einer bestimmten Anzahl von Betätigungen des Entnahmeventils (z. B. nach zehn Betätigungen) oder zu bestimmten Tages- oder Nacht-Zeiten für ein Zeitintervall betrieben.Disinfection facilities generally work only for limited time intervals at certain times. For example, the disinfection device or sub-devices is switched on at regular intervals of several hours (e.g. every 6 hours) or after a certain number of operations of the removal valve (e.g. after ten operations) or at certain times of the day or night Time interval operated.
Eine Heizeinrichtung ist eine Einrichtung zum Erhitzen eines Teiles des Trinkflüssigkeits-Rohrleitungssystems der Schankanlage, vorzugsweise zum Erhitzen eines entleerten Teiles des Trinkflüssigkeits-Rohrleitungssystems. Bei dem Erhitzen werden in der Regel Temperaturen im Bereich von 50 bis 300° C, vorzugsweise im Bereich 70 bis 200° C und besonders bevorzugt im Bereich von 90 bis 150° C am Rohrleitungsteil erzeugt. Für eine Desinfektion wird ein Temperaturbereich von 70 bis 90° C und für eine Sterilisation ein Temperaturbereich von 140 bis 150° C bevorzugt.A heating device is a device for heating a part of the drinking liquid piping system of the dispensing system, preferably for heating an emptied part of the drinking liquid piping system. During the heating, temperatures in the range from 50 to 300 ° C., preferably in the range from 70 to 200 ° C. and particularly preferably in the range from 90 to 150 ° C. are generated on the pipe part. A temperature range of 70 to 90 ° C is preferred for disinfection and a temperature range of 140 to 150 ° C for sterilization.
Eine Ausbiaseinrichtung ist eine Einrichtung zum Ausblasen von Trinkflüssigkeit aus dem gesamten Trinkflüssigkeits-Rohrleitungssystem oder einem Teil des Trinkflüssigkeits-Rohrleitungssystems der Schankanlage mitteis einem Gas, z. B. Luft. Vorzugsweise wird die Ausblaseinrichtung zum Entleeren der Rohrleitung nach dem Entnahmeventil (Zapfventil) bis zum Rohrleitungsende (Auslaßöffnung). Mittels der Ausblaseinrichtung wird Trinkflüssigkeit aus dem Rohrleitungssystems entfemt. Die Ausblaseinrichtung wird in der Regel mit Gas von einer Temperatur im Bereich von minus 20 bis 300 °C, z. B. Gas von Raumtemperatur (z. B. 15 bis 30 °C, insbesondere 20 bis 25 °C), vorgewärmtes Gas (z. B. 30 bis 60 °C) oder heißes Gas (z. B. 60 bis 300 °C, insbesondere 70 bis 150 °C), betrieben. Das Gas wird vorzugsweise mit hoher Geschwindigkeit durch das betreffende Rohrleitungsteil geleitet. Die Gasströmungsgeschwindigkeit beträgt z. B. mehr als 1 Liter pro Minute, vorzugsweise mindestens 10 Liter pro Minute. Vorteilhaft wird ein Ausblasvorgang mit einem Wechsel von Intervallen mit unterschiedlicher Gasströmungsgeschwindigkeit durchgeführt, z. B. ein Zeitintervall mit niedriger Gasströmungsgeschwindigkeit (z. B. 0,1 bis 0,5 Liter pro Minute über ein Zeitintervall von 1 bis 5 Minuten), gefolgt von einem Zeitintervall mit hoher Gasströmungsgeschwindigkeit (z. B. 10 Liter pro Minute über ein Zeitintervall von 1 bis 5 Minuten, vorzugsweise 10 bis 60 Sekunden). Das Gas wird mit einem Druck im allgemeinen in einem Bereich von einem leichten Überdruck (z. B. 1 ,1 bar) bis zu einem Druck um 50 bar, vorzugsweise einem Druck im Bereich von 1 ,1 bis 10 bar, in die Rohrleitung der Schankanlage eingespeist.A blowout device is a device for blowing out drinking liquid from the entire drinking liquid piping system or part of the drinking liquid piping system of the dispensing system by means of a gas, e.g. B. air. Preferably, the blow-out device for emptying the pipeline after the extraction valve (nozzle valve) to the end of the pipeline (outlet opening). The blow-out device turns drinking liquid from the piping system removed. The blow-out device is usually gas with a temperature in the range of minus 20 to 300 ° C, z. B. gas from room temperature (z. B. 15 to 30 ° C, especially 20 to 25 ° C), preheated gas (z. B. 30 to 60 ° C) or hot gas (z. B. 60 to 300 ° C , in particular 70 to 150 ° C), operated. The gas is preferably passed through the relevant pipe part at high speed. The gas flow rate is e.g. B. more than 1 liter per minute, preferably at least 10 liters per minute. A blow-out process is advantageously carried out with a change of intervals with different gas flow rates, e.g. B. a time interval with low gas flow rate (e.g. 0.1 to 0.5 liters per minute over a time interval of 1 to 5 minutes), followed by a time interval with high gas flow rate (e.g. 10 liters per minute over a Time interval from 1 to 5 minutes, preferably 10 to 60 seconds). The gas is introduced into the pipeline at a pressure generally in a range from a slight excess pressure (for example 1.1 bar) to a pressure around 50 bar, preferably a pressure in the range 1.1 to 10 bar Dispensing system fed.
Eine Gas-Spüleinrichtung ist eine Einrichtung zum Durchleiten von einem Gas durch das gesamte Tπ'nkflüssigkeits-Rohrleitungssystem oder einem Teil des Trinkflüssigkeits-Rohrleitungssystems der Schankanlage. Bevorzugt werden keimtötende oder desinfizierende Gase wie Kohlendioxid, Ozon-haltige Luft oder Sauerstoff, reiner Sauerstoff oder Phosphin-haltige Gase oder heißer Wasserdampf verwendet. Die Gase werden als kalte, normale (Raumtemperatur) oder erhitzte Gase eingesetzt. Die Gas-Spüleinrichtung wird vorteilhaft automatisiert, z. B. mit einem Ablaufprogramm, betrieben. Bei dem Spülen mit Gas werden vorzugsweise niedrige Gasströmungsgeschwindigkeiten eingesetzt (z. B. 0,1 bis 1 Liter pro Minute). Bei dem Einsatz von desinfizierenden oder keimtötenden Gasen sind längere Verweilzeiten in der Rohrleitung oder einem Rohrleitungsabschnitt vorteilhaft (z. B. 5 bis 60 Minuten). Die Temperaturbereich des eingesetzten Gases ist in der Regel wie bei der Ausblaseinrichtung beschrieben. Vorteilhaft wird mit heißem Gas gespült. Eine Trocknungseinrichtung ist eine Einrichtung zum Trocknen eines entleerten Teiles des Trinkflüssigkeits-Rohrleitungssystems der Schankanlage. Eine Trocknungseinrichtung arbeitet beispielsweise mittels Durchleitung von heißem Gas durch das Rohrleitungsteil oder Erhitzen eines Rohrleitungsteils, insbesondere des Auslaßrohres, bei Gasspülung.A gas flushing device is a device for passing a gas through the entire Tπ 'nkflüssigkeits-piping system or a part of the drinking liquid piping system of the dispensing system. Germicidal or disinfectant gases such as carbon dioxide, ozone-containing air or oxygen, pure oxygen or phosphine-containing gases or hot steam are preferably used. The gases are used as cold, normal (room temperature) or heated gases. The gas purging device is advantageously automated, for. B. operated with a sequence program. When gas purging, low gas flow rates are preferably used (e.g. 0.1 to 1 liter per minute). When using disinfectant or germicidal gases, longer dwell times in the pipeline or a section of the pipeline are advantageous (e.g. 5 to 60 minutes). The temperature range of the gas used is generally as described for the blow-out device. It is advantageous to flush with hot gas. A drying device is a device for drying an emptied part of the drinking liquid piping system of the dispensing system. A drying device works, for example, by passing hot gas through the pipe part or by heating a pipe part, in particular the outlet pipe, in the case of gas purging.
Eine Flüssigkeits-Spüleinrichtung ist eine Einrichtung zum Durchleiten von einer Flüssigkeit (Innenspülung) durch das gesamte Trinkflüssigkeits-Rohrleitungssystem oder einem Teil des Trinkflüssigkeits-Rohrleitungssystems der Schankanlage und/oder zum Spülen der Außenseite (äußere Oberfläche) des Auslaßrohres (Außenspülung). Die Flüssigkeit entspricht in der Regel nicht der Trinkflüssigkeit (Ausnahme: z. B. Wasser). Die Flüssigkeit wird in der Regel mit einer Temperatur im Bereich von 0 bis 100 °C, vorzugsweise 10 bis 95 °C, insbesondere 70 bis 95 °C, und bei einem Druck im im allgemeinen im Bereich von 1 bis 100 bar, vorzugsweise 2 bis 10 bar, eingesetzt. Die Flüssigkeit ist beispielsweise eineA liquid rinsing device is a device for passing a liquid (internal rinsing) through the entire drinking liquid piping system or part of the drinking liquid piping system of the dispensing system and / or for rinsing the outside (outer surface) of the outlet pipe (outside rinsing). The liquid usually does not correspond to the drinking liquid (exception: e.g. water). The liquid is generally at a temperature in the range from 0 to 100 ° C., preferably from 10 to 95 ° C., in particular from 70 to 95 ° C., and at a pressure in general in the range from 1 to 100 bar, preferably from 2 to 10 bar. The liquid is, for example
Spülflüssigkeit oder eine Reinigungsflüssigkeit. Es werden auch keimtötende oder desinfizierende Flüssigkeiten eingesetzt, z. B. Kohlendioxid- oder Ozon-haltige Flüssigkeiten. Die Flüssigkeits-Spüleinrichtung wird vorteilhaft automatisiert, z. B. programmgesteuert, betrieben. Ein Spülvorgang mit Flüssigkeit dauert in der Regel 5 Sekunden bis 60 Minuten, vorzugsweise 10 Sekunden bis 10 Minuten, insbesondere 10 Sekunden bis 5 Minuten. Gespült wird beispielsweise mit kaltem oder heißem Wasser bei Innen- und Außenspülung.Rinsing liquid or a cleaning liquid. Germicidal or disinfectant liquids are also used, e.g. B. Carbon dioxide or ozone-containing liquids. The liquid rinsing device is advantageously automated, e.g. B. program controlled, operated. A rinsing process with liquid usually takes 5 seconds to 60 minutes, preferably 10 seconds to 10 minutes, in particular 10 seconds to 5 minutes. For example, rinsing with cold or hot water for indoor and outdoor rinsing.
Eine Strahlungseinrichtung ist eine Einrichtung zum Bestrahlen eines Teiles des Trinkflüssigkeits-Rohrleitungssystems (Innenraum oder Außenseite derA radiation device is a device for irradiating a part of the drinking liquid piping system (interior or exterior of the
Rohrleitung) der Schankanlage. Die Betrahiung erfolgt beispielsweise mit UV- Strahlung, Beta-Strahlen, Gamma-Strahien, radioaktiver Strahlung oder Teilchenstrahlen. Bevorzugt erfolgt die Bestrahlung mit UV-Strahlung. Beispielsweise wird ein Teil des Rohrleitungssystem mit einem Quarz-Rohr oder Quarz-Fenster ausgestattet, so daß die Strahlung eines UV-Strahlers denPipeline) of the dispensing system. The radiation is carried out, for example, with UV radiation, beta rays, gamma rays, radioactive radiation or particle beams. Irradiation is preferably carried out with UV radiation. For example, part of the piping system is equipped with a quartz tube or quartz window, so that the radiation from a UV lamp
Rohrabschnitt durchdringen kann. Vorteilhaft wird die UV-Strahlung mittels einer Faseroptik (z. B. Quarz-Glasfasern) in einen Rohrabschnitt geleitet, wobei die Ausstattung der Rohrleitung mit Quarz-Rohr nicht mehr erforderlich ist. Die Bestrahlung in den Rohrabschnitten erfolgt vorzugsweise an flüssigkeitsentleerten Rohrabschnitten (z. B. entleertes Auslaßrohr), insbesondere an flüssigkeitsentleerten und getrockneten Rohrabschnitten. Vorteilhaft wird das Auslaßrohr innen und/oder außen bestrahlt (vorzugsweise mit UV-Strahlung).Pipe section can penetrate. The UV radiation is advantageously conducted into a tube section by means of fiber optics (e.g. quartz glass fibers), the Equipment of the pipeline with quartz tube is no longer required. Irradiation in the pipe sections is preferably carried out on liquid-emptied pipe sections (e.g. emptied outlet pipe), in particular on liquid-emptied and dried pipe sections. The outlet pipe is advantageously irradiated on the inside and / or outside (preferably with UV radiation).
Als UV-Strahler werden z. B. UV-Lampen eingesetzt, die üblicherweise zur Entkeimung, Desinfektion oder Sterilisation eingesetzt werden (z. B. Quecksilberdampflampen, Gasentladungslampen). Die Strahiungseinrichtung ist in der Regel nicht kontinuierlich in Betrieb, sondern erfolgt zu vorbestimmten Zeiten für einen begrenzten Zeitraum (Zeitintervall von z. B. 1 bis 10 Minuten). Der Betrieb, insbesondere ein Programmbetrieb, der Strahlungseinrichtung wird von einer Steuereinheit, vorzugsweise einer zentralen Steuereinheit, gesteuert.As a UV lamp z. B. UV lamps are used, which are usually used for disinfection, disinfection or sterilization (z. B. mercury vapor lamps, gas discharge lamps). The radiation device is generally not in continuous operation, but takes place at predetermined times for a limited period of time (time interval of, for example, 1 to 10 minutes). The operation, in particular a program operation, of the radiation device is controlled by a control unit, preferably a central control unit.
Im folgenden wird die Heizeinrichtung erläutert.The heater will now be explained.
Eine Heizeinrichtung am Auslaßstutzen einer Getränkeschankanlage enthält vorzugsweise ein Heizelement, das auf einer elektrischen Widerstandsdrahtheizung oder Induktion basiert. Das Heizelement wird besonders bevorzugt durch eine Wickelung eines Widerstandsheizdrahtes um das Rohr des Auslaßstutzens gebildet (z. B. als Heizwendel).A heating device at the outlet connection of a beverage dispensing system preferably contains a heating element which is based on electrical resistance wire heating or induction. The heating element is particularly preferably formed by winding a resistance heating wire around the tube of the outlet connection (for example as a heating coil).
Die Heizeinrichtung am Auslaßstutzen oder Auslaßrohr dient vorzugsweise zum Erhitzen des entleerten Auslaßrohres. Die beheizten Rohrteile bestehen aus einem entsprechend temperaturbeständigen Material wie Metall, Keramik, Glas oder besonderem, geeigneten Kunststoff je nach vorgesehener Arbeitstemperatur der Heizeinrichtung.The heating device on the outlet nozzle or outlet pipe is preferably used to heat the emptied outlet pipe. The heated pipe parts consist of a corresponding temperature-resistant material such as metal, ceramic, glass or special, suitable plastic depending on the intended working temperature of the heating device.
Die Heizeinrichtung enthält vorzugsweise ein gekapseltes Heizelement. Beispielsweise wird der Heizdraht durch ein hitzebeständiges Material wie einem hitzebeständigem, insbesondere hochtemperaturbeständigen Kunststoff (z. B. Fluorpolymer wie PTFE), Keramik, Glasfaser, Mineralfaser oder ein Metallteil umgeben. Das hitzebeständige Material dient z. B. zum Schutz bei der Bedienung und zur Temperaturisolation nach außen. Besonders vorteilhaft ist der komplette Zapfhahn, mit Heizelement und Auslaßstutzen, mit einem geschlossenen Umbau versehen.The heating device preferably contains an encapsulated heating element. For example, the heating wire is made of a heat-resistant material such as a heat-resistant, in particular high-temperature-resistant plastic (e.g. fluoropolymer such as PTFE), ceramic, glass fiber, mineral fiber or a metal part surround. The heat-resistant material serves e.g. B. for protection during operation and for temperature insulation to the outside. The complete tap, with heating element and outlet connection, with a closed conversion is particularly advantageous.
Die Heizeinrichtung enthält im allgemeinen eine Steuer- und Regeleinrichtung für die Temperatur und eine Schalteinheit, die die Dauer des Heizvorganges steuert. Im einfachsten Falle ist die Schalteinheit eine Zeitschaltsteuerung.The heating device generally contains a control and regulating device for the temperature and a switching unit that controls the duration of the heating process. In the simplest case, the switching unit is a time switch control.
Durch die Heizeinrichtung wird der Auslaßstutzen einer Getränkeschankanlage z. B. zu bestimmten oder ausgewählten Zeiten auf eine Temperatur z. B. im Bereich von 50 bis 300° C, vorzugsweise im Bereich 70 bis 200° C und besonders bevorzugt im Bereich von 90 bis 150° C, erhitzt. Das Erhitzen des Auslaßstutzens dient vorzugsweise zum Trocknen. Durch das Trocknen des Auslaßstutzens wird einem Wachstum von Keimen in dem Auslaßrohr entgegengewirkt. Das Erhitzen des Auslaßstutzens kann vorteilhaft auch so durchgeführt werden, daß die Temperatur so gewählt wird, daß eine Sterilisation erfolgt. Die Heizeinrichtung kann z. B. so betrieben werden, daß Heizintervalle zum Trocknen und Heizintervalle zum Sterilisieren in unterschiedlichen Sequenzen erfolgen, z. B. im Wechsel oder Trockenintervalle am Tage und ein oder mehrere Sterilisationsintervalle in der Nacht.The outlet of a beverage dispenser z. B. at certain or selected times to a temperature z. B. in the range of 50 to 300 ° C, preferably in the range 70 to 200 ° C and particularly preferably in the range of 90 to 150 ° C, heated. Heating the outlet nozzle is preferably used for drying. By drying the outlet nozzle, growth of germs in the outlet pipe is counteracted. The heating of the outlet connection can advantageously also be carried out in such a way that the temperature is selected so that sterilization takes place. The heater can e.g. B. be operated so that heating intervals for drying and heating intervals for sterilization take place in different sequences, for. B. alternating or dry intervals during the day and one or more sterilization intervals at night.
Ein weiterer Gegenstand der Erfindung ist ein Verfahren zum Betreiben von Getränkeschankanlagen, dadurch gekennzeichnet, daß zeitweise die Auslaßleitung oder der Auslaßstutzen der Schankanlage mit Hilfe einer Heizeinrichtung getrocknet wird. Vorteilhaft wird der Trocknungsvorgang dadurch unterstützt, daß durch die zu trocknenden rohrformigen Teile (der Trinkflüssigkeitsleitung) ein Gas geleitet wird, womit Trinkflüssigkeit aus der Trinkflüssigkeitsleitung oder Teilen der Trinkflüssigkeitsleitung ausgetrieben oder ausgeblasen wird. 1m folgenden werden Gas-Spüleinrichtungen und Ausblaseinrichtungen erläutert.Another object of the invention is a method for operating beverage dispensing systems, characterized in that the outlet line or the outlet connection of the dispensing system is temporarily dried with the aid of a heating device. The drying process is advantageously supported in that a gas is passed through the tubular parts to be dried (the drinking liquid line), with which drinking liquid is expelled or blown out of the drinking liquid line or parts of the drinking liquid line. Gas flushing devices and blow-out devices are explained below.
Als Gas werden Gase, Gasgemische oder gasförmige Stoffe oder Stoffgemische verstanden. Gase oder Gasgemische sind beispielsweise Luft, Inertgase oder Reaktivgase (z. B. Sterilisationsgase oder keimabtötende Gase) bezeichnet. Inertgase sind Edelgase wie Helium, Neon, Argon, Krypton und Xenon oder reaktionsträge Gase wie Stickstoff. Kohlendioxid kann als Inertgas betrachtet werden. Reaktivgase, insbesondere Sterilisationsgase, sind beispielsweise Sauerstoff oder ozonhaltige Gase. Gasförmige Stoffe oder Stoffgemische sind beispielsweise Wasserdampf oder wasserdampfhaltige Gasgemische. Wasserdampf wird kann beispielsweise mit Hilfe von handelsüblichen Wasserdampferzeugern hergestellt werden. Der Wasserdampf weist vorzugsweise eine Temperatur von mindestens 120 °C auf.Gas is understood to be gases, gas mixtures or gaseous substances or mixtures of substances. Gases or gas mixtures are, for example, air, inert gases or reactive gases (e.g. sterilization gases or germicidal gases). Inert gases are noble gases such as helium, neon, argon, krypton and xenon or inert gases such as nitrogen. Carbon dioxide can be considered an inert gas. Reactive gases, in particular sterilization gases, are, for example, oxygen or gases containing ozone. Gaseous substances or mixtures of substances are, for example, water vapor or gas mixtures containing water vapor. Steam can be produced, for example, with the help of commercially available steam generators. The steam preferably has a temperature of at least 120 ° C.
Das Gas kann ein Gasgemisch sein, das Luft, Inertgase oder Reaktivgase enthält. Vorzugsweise wird Kohlendioxid oder kohlendioxidhaltige Gasegemische als Gas verwendet. Vorteilhaft ist die Verwendung von Kohlendioxid als Gas, da Kohlendioxid in der Regel in Schankanlagen zur Karbonisierung der Trinkflüssigkeit vorhanden ist und darüberhinaus keimtötende Eigenschaften aufweist. In der Regel wird Kohlendioxid in Druckgasbehältern bereitgestellt.The gas can be a gas mixture which contains air, inert gases or reactive gases. Carbon dioxide or gas mixtures containing carbon dioxide are preferably used as the gas. It is advantageous to use carbon dioxide as the gas, since carbon dioxide is usually present in dispensing systems for carbonating the drinking liquid and also has germicidal properties. As a rule, carbon dioxide is provided in pressurized gas containers.
Trinkflüssigkeiten sind Getränke wie Wasser (z. B. Tafelwasser), Limonade, Bier, Saft oder safthaltige Getränke.Drinking liquids are beverages such as water (e.g. table water), lemonade, beer, juice or juicy beverages.
Das Gas wird zum Ausblasen im allgemeinen bei Temperaturen im Bereich von minus 20° C bis plus 300° C eingesetzt, beispielsweise als gekühltes Gas (minus 20 bis 15° C), bei Raumtemperatur (über 15 bis um 30°C, gewöhnlich 20 bis 25° C), als erwärmtes Gas (über 30 bis um 70° C) oder als erhitztes Gas (über 70° C bis um 150° C). Die Temperatur des Gases muß nicht bei allen Spül- oder Ausblasvorgängen gleich sein. Beispielsweise können Ausblasintervalle mit Gas von Raumtemperatur nach jedem Zapfvorgang erfolgen und Ausblas- oder Gasspülintervalle mit heißem Gas zu bestimmten Zeiten (z. B. einmal täglich) erfolgen.The gas is generally used for blowing out at temperatures in the range from minus 20 ° C to plus 300 ° C, for example as a cooled gas (minus 20 to 15 ° C), at room temperature (above 15 to around 30 ° C, usually 20 to 25 ° C), as a heated gas (over 30 to around 70 ° C) or as a heated gas (over 70 ° C to around 150 ° C). The temperature of the gas does not have to be the same for all flushing or blowing out processes. For example, blow-out intervals with gas from room temperature can take place after each tap and blow-out or Gas purging intervals with hot gas take place at certain times (e.g. once a day).
Das Ausblasen von Trinkflüssigkeit aus dem Auslaßrohr oder aus Leitungsteilen der Schankanlage erfolgt vorzugsweise nach beendigter Entnahme vonThe blowing out of drinking liquid from the outlet pipe or from line parts of the dispensing system preferably takes place after the removal of
Trinkflüssigkeit aus der Getränkeschankanlage, insbesondere direkt im Anschluß nach der erfolgten Trinkflüssigkeitsentnahme (nach Beendigung des Zapfvorganges).Drinking liquid from the beverage dispensing system, in particular immediately after the drinking liquid has been removed (after the dispensing process has ended).
Die Ausblaseinrichtung dient zur Entleerung (Entfernung) der Trinkflüssigkeit aus Leitungen oder Leitungsteilen für die Führung der Trinkflüssigkeit. Leitungsteile sind beispielsweise Trinkflüssigkeit abgebende Leitungsteile (Zapfrohr, Auslaßrohr oder Auslaßstutzen) oder Leitungsteile im Endbereich der Trinkflüssigkeitsleitung einer Schankanlage. Die Ausblaseinrichtung kann auch vorteilhaft zur Entleerung der gesamten Trinkflüssigkeitsleitung in einer Schankanlage eingesetzt werden. Nach der Entleerung wird vorteilhaft mit heißes Gas eingesetzt, z. B. heiße Luft oder heißes Kohlendioxidgas.The blow-out device serves to empty (remove) the drinking liquid from lines or line parts for guiding the drinking liquid. Line parts are, for example, line parts dispensing drinking liquid (dispensing pipe, outlet pipe or outlet connection) or line parts in the end region of the drinking liquid line of a dispensing system. The blow-out device can also be used advantageously for emptying the entire drinking liquid line in a dispensing system. After emptying, hot gas is advantageously used, e.g. B. hot air or hot carbon dioxide gas.
Vorzugsweise wird das Gas mit hoher Geschwindigkeit durch die Trinkflüssigkeitsleitung oder einen Teil der Trinkflüssigkeitsleitung während des Ausblasvorganges geleitet.The gas is preferably passed at high speed through the drinking liquid line or a part of the drinking liquid line during the blow-out process.
Die Ausblaseinπchtung (wie auch die Gasspüleinrichtung) enthält in der Regel eine Gasquelle (z. B. Druckgasbehälter mit komprimiertem Gas und/oder ein Wasserdampferzeuger), eine Verbindung der Gasquelle mit derThe Ausblaseinπchtung (like the gas purging device) usually contains a gas source (z. B. compressed gas container with compressed gas and / or a steam generator), a connection of the gas source with the
Trinkflüssigkeitsleitung, eine Absperrvorrichtung für die Gaszuführung (z. B. Auf/Zu-Ventil oder regelbares Ventil) und vorzugsweise eine Steuereinheit für die Gaszuführung in die Trinkflüssigkeitsleitung, die vorzugsweise ein Ventil für die Gaszuführung regelt. Das Gas kann an verschiedenen Stellen der Trinkflüssigkeitsleitung zugeführt werden, z. B. am Beginn der Leitung oder im Verlauf der Trinkflüssigkeitsleitung, insbesondere am oder hinter dem Zapfhahn (Zapfventil) in das Auslaßrohr (Auslaßstutzen oder Auslaßrohr). In der Regel werden die Leitungsteile der Trinkflüssigkeitsleitung von der Gaszuführungsstelle bis zum Leitungsende (Auslaß) ausgeblasen. Das Ausblasen kann aber auch zur Entleerung von bestimmten Anlagenkomponenten (einzelne Teile oder Kombinationen) dienen, z. B. dem Carbonator, dem Filter oder anderen Teilen bei einer Getränkeschankanlage. Die Entleerung muß also nicht in jedem Fall über das Auslaßrohr erfolgen.Drinking liquid line, a shut-off device for the gas supply (e.g. on / off valve or controllable valve) and preferably a control unit for the gas supply into the drinking liquid line, which preferably regulates a valve for the gas supply. The gas can be supplied to the drinking liquid line at various points, e.g. B. at the beginning of the line or in the course of the drinking liquid line, in particular on or behind the tap (nozzle) in the outlet pipe (outlet nozzle or outlet pipe). As a rule, the line parts of the drinking liquid line are blown out from the gas supply point to the end of the line (outlet). The blowing out can also serve to empty certain system components (individual parts or combinations), e.g. B. the carbonator, the filter or other parts in a beverage dispensing system. The emptying does not always have to take place via the outlet pipe.
Für das Ausblasen (und Spülen mit Gas) kann der Einsatz verschiedener Gase gleichzeitig oder in Folge vorteilhaft sein. Beispielsweise kann in einem ersten Schritt Wasserdampf und in einem zweiten Schritt ein Gas wie Kohlendioxid eingesetzt werden. Mit der Wasserdampfbehandlung kann eine Entleerung und Sterilisation erfolgen, mit der Kohlendioxidbehandluπg ein Trocknen erzielt werden. Auch der umgekehrte Vorgang, 1. Kohlendioxidbehandlung/ 2. Wasserdampfbehandlung, ist sinnvoll. Das Ausblasen mit zwei oder mehreren Gasen kann auch in Sequenzen erfolgen, das heißt eine bestimmte Anzahl von Ausblasvorgängen mit einem Gas, gefolgt von einer bestimmten Anzahl von Ausblasvorgängen mit einem anderen Gas. Beispielsweise kann eine Sequenz mit Ausblasvorgängen mit Kohlendioxid von einer Sequenz von einer oder mehreren Wasserdampfspülungen gefolgt werden.The use of different gases at the same time or in succession can be advantageous for blowing out (and flushing with gas). For example, water vapor can be used in a first step and a gas such as carbon dioxide in a second step. With the steam treatment, emptying and sterilization can be carried out, with which drying is achieved with the carbon dioxide treatment. The reverse process, 1. carbon dioxide treatment / 2. steam treatment, is also useful. The blowing out with two or more gases can also be carried out in sequences, that is to say a certain number of blowing out operations with one gas, followed by a certain number of blowing out operations with another gas. For example, a sequence of carbon dioxide blowing operations can be followed by a sequence of one or more water vapor washes.
Im folgenden wird die Getränkeschankanlage gemäß der Erfindung am Beispiel einer Tafelwasserschankanlage als bevorzugtem Anlagetyp erläutert. Die Ausführungen sind auf andere Typen von Getränkeschankanlagen übertragbar.The beverage dispensing system according to the invention is explained below using the example of a bottled water dispensing system as the preferred type of system. The designs can be transferred to other types of beverage dispensing systems.
Die Einleitung des Gases, vorzugsweise Kohlendioxid, erfolgt beiThe gas, preferably carbon dioxide, is introduced at
Tafelwasserschankaniagen z. B. über den Carbonator, am Filter oder am Auslaßrohr.Table water dispenser z. B. on the carbonator, on the filter or on the outlet pipe.
Das Ausblasen von Wasser aus dem Auslaßrohr oder anderen trinkflüssigkeitsführenden Leitungsteiien nach der Tafelwasserentnahme verhindert, daß Keime im Auslaßrohr oder im Leitungssystem wachsen und eine Kontamination der Tafelwasserschankanlage und des Tafelwasservorrates in der Schankanlage über das Auslaßrohr erfolgt.The blowing out of water from the outlet pipe or other lines carrying drinking liquid after the bottled water has been removed prevents germs from growing in the outlet pipe or the pipe system and causing a Contamination of the bottled water dispensing system and the bottled water supply in the dispensing system occurs via the outlet pipe.
Besonders bevorzugt wird das Auslaßrohr oder der Auslaßstutzen mit dem Ausblasevorgang getrocknet und gleichzeitig oder nachfolgend mittels der Heizeinrichtung erhitzt. Ausblasen und Erhitzen können auch entkoppelt sein. Beispielsweise können Ausblasevorgänge mit Erhitzen und Ausblasevorgänge ohne Erhitzen in bestimmten zeitlichen Folgen vorgenommen werden, was vorzugsweise durch eine Steuerung oder ein Steuerprogramm bewirkt wird.The outlet pipe or the outlet connection is particularly preferably dried with the blow-out process and heated simultaneously or subsequently by means of the heating device. Blow-out and heating can also be decoupled. For example, blow-out processes with heating and blow-out processes without heating can be carried out in specific time sequences, which is preferably brought about by a controller or a control program.
Der Ausblasevorgang (oder andere Entkeimungsvorgänge) wird in der Regel mechanisch, elektrisch, elektrisch/elektronisch oder programmgesteuert ausgelöst. Vorzugsweise ist die Auslösung des Ausblasevorganges mit der (schließenden) Betätigung des Zapfhahnes gekoppelt. Besonders bevorzugt wird der Ausblasevorgang über ein Magnetventil gesteuert, das zur Gaszuführung in das Auslaßrohr geöffnet und geschlossen wird. Das Magnetventil für die Gaszuführung ist vorzugsweise zeit- oder sensorgesteuert. Beispielsweise wird das Magnetventil mittels einer elektronischen Zeitsteuerung gesteuert. Eine Sensorsteuerung wird beispielsweise über einen Leitfähigkeitssensor aufgebaut. Das Magnetventil kann beispielsweise über einen Kontakt am Zapfhahn geöffnet werden, bei Erreichen der Entleerung oder Trocknung des Auslaßrohres wird das Magnetventil dann geschlossen (Ausblasen direkt nach jedem Zapfen).The blow-out process (or other sterilization processes) is usually triggered mechanically, electrically, electrically / electronically or under program control. Preferably, the triggering of the blow-out process is coupled with the (closing) actuation of the tap. The blow-out process is particularly preferably controlled via a solenoid valve which is opened and closed for the gas supply into the outlet pipe. The solenoid valve for the gas supply is preferably time or sensor controlled. For example, the solenoid valve is controlled by means of an electronic time control. A sensor control is set up, for example, via a conductivity sensor. The solenoid valve can be opened, for example, via a contact on the tap. When the outlet pipe is emptied or dried, the solenoid valve is then closed (blowing out directly after each plug).
Das Ausblasen des Auslaßrohres kann auch statt direkt nach jedem Zapfen nach bestimmten Zeitpunkten erfolgen (zeitpunktkontrolliertes Ausblasen), z. B. 5, 10, 15 oder 30 Minuten nach dem Zapfen (nach Standzeit). Das zeitpunktkontroliierte Ausblasen kann auch vorteilhaft mit dem durch das Zapfen ausgelöste Ausblasen kombiniert werden. Beispielsweise kann das Auslaßrohr jeden Tag zu einem bestimmten Zeitpunkt und zusätzlich direkt nach dem Zapfen ausgeblasen werden. Die Heizintervalle erfolgen beispielsweise im Rhythmus von Stunden (z. B. in Abständen von 3, 4, 5, 6, 12 oder 24 Stunden). Bei Verwendung von Kohlendioxid als Gas zum Ausblasen und Trocknen des Auslaßrohres genügt in der Regel ein Zeitintervall der Gaszuführung von weniger als einer Minute, beispielsweise ein Zeitintervall im Bereich von 1 bis 30 Sekunden, vorzugsweise 3 bis 20 Sekunden und besonders bevorzugt 5 bis 10 Sekunden.The blow-out of the outlet pipe can also take place at certain times instead of directly after each spigot (time-controlled blow-out), e.g. B. 5, 10, 15 or 30 minutes after tapping (after standing). The time-controlled blow-out can also advantageously be combined with the blow-out triggered by the peg. For example, the outlet pipe can be blown out at a certain time each day and additionally directly after the plug. The heating intervals are, for example, every hour (e.g. at intervals of 3, 4, 5, 6, 12 or 24 hours). When using carbon dioxide as gas for blowing out and drying the outlet pipe, a time interval of the gas supply of less than one minute is usually sufficient, for example a time interval in the range from 1 to 30 seconds, preferably 3 to 20 seconds and particularly preferably 5 to 10 seconds.
Das Gas wird im allgemeinen mit einem Druck von 1 bar bis 10 bar, vorzugsweise 1 bar bis 3 bar und besonders bevorzugt 1 ,2 bar bis 2 bar, dem Auslaßrohr zugeführt.The gas is generally fed to the outlet pipe at a pressure of 1 bar to 10 bar, preferably 1 bar to 3 bar and particularly preferably 1.2 bar to 2 bar.
Der Zapfhahn (Entnahmeventil) wird mechanisch, elektrisch und/oder elektronisch betätigt. Vorzugsweise wird der Zapfhahn elektrisch/elektronisch, z. B. durch Tastendruck betätigt.The tap (extraction valve) is operated mechanically, electrically and / or electronically. Preferably the tap is electrical / electronic, e.g. B. operated by pressing a button.
Das Auslaßrohr besteht im allgemeinen aus Metall wie Edelstahl, Kupfer, kupferhaltige Legierungen, kupferbeschichtete Metalle, Silber, silberhaltige Legierungen oder silberbeschichtete Metalle oder enthält oder besteht aus Glas oder Quarz. Das Auslaßrohr hat in der Regel einen inneren Durchmesser im Bereich von 1 mm bis 10 mm, vorzugsweise 2 mm bis 5 mm. Das Auslaßrohr hat im allgemeinen eine Länge (Abschnitt von Entnahmeventil bis Auslaßrohrende) im Bereich von 1 cm bis 25 cm. Meistens beträgt die Länge 5 bis 10 cm.The outlet pipe generally consists of metal such as stainless steel, copper, copper-containing alloys, copper-coated metals, silver, silver-containing alloys or silver-coated metals or contains or consists of glass or quartz. The outlet pipe generally has an inner diameter in the range from 1 mm to 10 mm, preferably 2 mm to 5 mm. The outlet pipe generally has a length (section from the extraction valve to the outlet pipe end) in the range from 1 cm to 25 cm. Usually the length is 5 to 10 cm.
Im folgenden wird die Schankanlage am Beispiel einer Tafelwasserschankanlage anhand der Zeichnung erläutert.In the following the dispensing system is explained using the example of a bottled water dispensing system with the aid of the drawing.
Fig. 1 zeigt ein Schema einer Tafelwasserschankanlage mit Gaszuführung für das Ausblasen (oder Spülen mit Gas) des Auslaßrohres oder anderer Leitungsteile zur Wasserführung.Fig. 1 shows a diagram of a bottled water system with gas supply for blowing (or purging with gas) of the outlet pipe or other line parts for water management.
In dem in Fig. 1 gezeigten Schema wird in der Tafelwasserschankanlage (1 ) Leitungswasser (2) durch ein Filter (12) und den sogenannten Carbonator (11 ) über den als Dreiwegehahn ausgeführten Zapfhahn (5) zum Auslaßrohr (6) geführt, an dem das Tafelwasser (13) abgefüllt wird. Zum Ausblasen des Auslaßrohres (6) wird Kohlendioxid als Gas (Spülgas) verwendet, das aus der Gasquelle (7), einer Druckgasfiasche mit Flaschenventil (8) und Druckminderer (9), über die Gasleitung (10) entnommen wird. Das Gas wird hier dem Carbonator (11 ) und dem Auslaßrohr (6) zugeführt. Der Zapfhahn (5) ist vorzugsweise ein Dreiwegeventil, über das z. B. über eine Magnetventilsteuerung das Gas in das Auslaßrohr (6) gelangt.In the diagram shown in Fig. 1, tap water (2) is fed through a filter (12) and the so-called carbonator (11) in the bottled water dispensing system (1) via the three-way tap (5) to the outlet pipe (6) on which the bottled water (13) is filled. For blowing out the outlet pipe (6) carbon dioxide is used as the gas (purge gas), which comes from the gas source (7) Compressed gas bottle with cylinder valve (8) and pressure reducer (9), via which gas line (10) is removed. The gas is fed to the carbonator (11) and the outlet pipe (6). The tap (5) is preferably a three-way valve, via the z. B. the gas enters the outlet pipe (6) via a solenoid valve control.
Die Gasspülung des Auslaßrohres (6) zum Ausblasen von Wasser erfolgt z. B. direkt nach jedem Zapfen oder nach bestimmter Standzeit (z. B. 5 Minuten nach jedem Zapfen oder zu bestimmter Tageszeit). Die Gaszufuhr für die Gasspülung erfolgt vorzugsweise über das Dreiwegeventil (5). Alternativ kann die Gaszufuhr über das Dreiwegeventil (3) oder (4) erfolgen (diese alternative Wege sind durch gestrichelte Gaswege dargestellt).The gas purging of the outlet pipe (6) for blowing out water takes place, for. B. directly after each cone or after a certain standing time (e.g. 5 minutes after each cone or at a specific time of day). The gas supply for the gas purging is preferably carried out via the three-way valve (5). Alternatively, the gas can be supplied via the three-way valve (3) or (4) (these alternative routes are shown by dashed gas routes).
Die Wasserleitungen, insbesondere das Auslaßrohr (6), haben vorzugsweise kleine Leitungsquerschnitte (z. B. 1 mm bis 5 mm), um hohe Gasströmungs- geschwindigkeiten beim Spülen mit Gas zu ermöglichen und die Menge an verworfenem Wasser gering zu halten.The water pipes, in particular the outlet pipe (6), preferably have small pipe cross sections (z. B. 1 mm to 5 mm) to allow high gas flow rates when flushing with gas and to keep the amount of water discarded low.
Das Dreiwegeventil (3, 4 oder 5) wird für den Ausblasvorgang mechanisch, elektrisch, elektronisch oder kombiniert (z. B. mechanisch/elektrisch oder mechanisch/elektronisch) umgeschaltet (geöffnet) und der betreffendeThe three-way valve (3, 4 or 5) is switched over (opened) mechanically, electrically, electronically or in combination (e.g. mechanically / electrically or mechanically / electronically) and the relevant one for the blow-out process
Wasserleitungsabschnitt für eine Dauer von z. B. 5 Sekunden mit Gas gespült (zeitkontrollierte Steuerung). Vorzugsweise erfolgt die Gaszufuhr über ein gesteuertes Magnetventil.Water pipe section for a period of z. B. flushed with gas for 5 seconds (time-controlled control). The gas is preferably supplied via a controlled solenoid valve.
Eine zusätzliche Heizeinrichtung und/oder Bestrahlungseinrichtung werden vorzugsweise im Bereich des Auslaßrohres 6 angeordnet. BezuqszeichenlisteAn additional heating device and / or radiation device are preferably arranged in the area of the outlet pipe 6. Reference list
1 Tafeiwasserschankanlage1 tafe water dispenser
2 Leitungswasserzufuhr2 tap water supply
3 erstes Dreiwegeventil3 first three-way valve
4 zweites Dreiwegeventil4 second three-way valve
5 drittes Dreiwegeventil (Zapfhahn)5 third three-way valve (tap)
6 Auslaßrohr6 outlet pipe
7 Gasquelle (hier: Druckgasflasche mit Kohlendioxid)7 gas source (here: compressed gas bottle with carbon dioxide)
8 Druckgasflaschenventil8 compressed gas cylinder valve
9 Druckminderer9 pressure reducer
10 Gasleitung10 gas pipe
11 Carbonator11 carbonator
12 Filter (z. B. Partikelfilter, Sterilfilter)12 filters (e.g. particle filter, sterile filter)
13 Tafelwasser 13 bottled water
Claims
Applications Claiming Priority (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19823770 | 1998-05-28 | ||
| DE1998123770 DE19823770A1 (en) | 1998-05-28 | 1998-05-28 | Drinking water tapping system |
| DE1999109996 DE19909996A1 (en) | 1999-03-06 | 1999-03-06 | Soda water dispenser for drinking purposes with sterilization unit, heater, expulsion blow-out unit, ultraviolet radiation emitter etc. |
| DE19909996 | 1999-03-06 | ||
| DE19922084 | 1999-05-17 | ||
| DE19922084A DE19922084A1 (en) | 1999-05-17 | 1999-05-17 | Soda water dispenser for drinking purposes with sterilization unit, heater, expulsion blow-out unit, ultraviolet radiation emitter etc. |
| PCT/EP1999/003498 WO1999061366A1 (en) | 1998-05-28 | 1999-05-21 | Drink-dispensing system with a sterilisation device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1082267A1 true EP1082267A1 (en) | 2001-03-14 |
| EP1082267B1 EP1082267B1 (en) | 2003-04-09 |
Family
ID=27218401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP99953329A Expired - Lifetime EP1082267B1 (en) | 1998-05-28 | 1999-05-21 | Drink-dispensing system with a sterilisation device |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP1082267B1 (en) |
| AT (1) | ATE236850T1 (en) |
| AU (1) | AU4265499A (en) |
| DE (2) | DE19980937D2 (en) |
| WO (1) | WO1999061366A1 (en) |
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| DE202010015529U1 (en) | 2009-11-19 | 2011-03-17 | Aqora Gmbh | Liquid dispenser |
| DE102017129283A1 (en) | 2017-12-08 | 2019-06-13 | Thomas Funk | The liquid delivery system |
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| DE10121206A1 (en) * | 2001-05-01 | 2002-11-07 | Kopper Iris | To clean and disinfect a water processing plant, for water supplies, the inflow is disconnected and hot steam is passed through the system under pressure to remove residue and disinfect the surfaces, with a back flow through the filter |
| NL1019544C2 (en) | 2001-12-12 | 2003-06-13 | Sara Lee De Nv | Device for offering and dispensing mineral water suitable for consumption. |
| EP1763409A1 (en) * | 2004-05-05 | 2007-03-21 | Whirlwind Technologies Limited | Clearing pipework in oil refineries and other plant having extensive pipework |
| CA2531546A1 (en) * | 2004-12-23 | 2006-06-23 | Thomas Oswald | Fluid line apparatus |
| NL1030589C2 (en) * | 2005-12-05 | 2007-06-06 | Houston R & D Consultancy B V | Method and system for cleaning a body and / or a fluid. |
| DE102006016114A1 (en) * | 2006-04-04 | 2007-10-11 | Interservice Water Technology Vertriebs Gmbh | Table water system has water vapor generator with water container, electrically controllable pump and vapor generator connected so water/vapor mixture is fed through water vapor outlet connected to line system into line system |
| DE202009018113U1 (en) | 2009-11-09 | 2011-03-24 | Aqora Gmbh | donation fitting |
| DE102010043845A1 (en) | 2010-11-12 | 2012-05-16 | Aqora Gmbh | Dispensing armature for table water dispenser, has anode and cathode arranged in tap section, and power source applying direct current pulse such that irreversible membrane breakdown takes place in contamination of liquid |
| WO2012072805A1 (en) * | 2010-12-03 | 2012-06-07 | Brita Gmbh | Apparatus and method for treating a liquid, in particular water, and for disinfecting an outlet component |
| DE102011003884B4 (en) | 2011-02-09 | 2018-07-19 | Aqora Gmbh | Dispensing fitting for dispensing liquid |
| BE1025399B1 (en) * | 2017-12-29 | 2019-02-06 | AQUALEX bvba | Purging the pipeline of a delivery point of a drinking water system for carbonized water |
| AT520717B1 (en) * | 2018-03-22 | 2019-07-15 | Mock Manfred | Disinfection of pipelines |
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| DE3512880C1 (en) * | 1985-04-11 | 1987-01-02 | Schwelm Tanksysteme Gmbh | Device for the metered dispensing of cold drinks and hot drinks |
| JP2698108B2 (en) * | 1988-07-18 | 1998-01-19 | 三洋電機株式会社 | Sterilizer in beverage dispenser |
| FR2663624B1 (en) * | 1990-06-20 | 1992-10-09 | Soda Distribution | HYGIENIC DEVICE FOR AUTOMATIC DISPENSING OF LIQUIDS. |
| US5064097A (en) * | 1990-10-10 | 1991-11-12 | Water Center International Ltd. | Compact water purification and beverage dispensing apparatus |
| DE69328933T2 (en) * | 1992-09-25 | 2001-03-01 | Clive Barnes | DEVICE AND METHOD FOR PREVENTING THE FORMATION OF IMPURITIES IN DISPENSING PIPES |
| US5441179A (en) * | 1994-05-18 | 1995-08-15 | Marsh; Stephen A. | Ultra-violet disinfecting device adapted for use with bottled water dispenser |
| DE29816612U1 (en) * | 1998-09-04 | 1999-04-01 | Ionox Wasser-Technologie Gmbh, 93083 Obertraubling | Device for the aseptic dispensing and / or mixing of beverages, for example still water and water enriched or mixed with CO · 2 · |
-
1999
- 1999-05-21 WO PCT/EP1999/003498 patent/WO1999061366A1/en not_active Ceased
- 1999-05-21 EP EP99953329A patent/EP1082267B1/en not_active Expired - Lifetime
- 1999-05-21 AT AT99953329T patent/ATE236850T1/en active
- 1999-05-21 DE DE19980937T patent/DE19980937D2/en not_active Expired - Lifetime
- 1999-05-21 DE DE59904963T patent/DE59904963D1/en not_active Expired - Lifetime
- 1999-05-21 AU AU42654/99A patent/AU4265499A/en not_active Abandoned
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| Title |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202010015529U1 (en) | 2009-11-19 | 2011-03-17 | Aqora Gmbh | Liquid dispenser |
| DE102017129283A1 (en) | 2017-12-08 | 2019-06-13 | Thomas Funk | The liquid delivery system |
Also Published As
| Publication number | Publication date |
|---|---|
| AU4265499A (en) | 1999-12-13 |
| DE59904963D1 (en) | 2003-05-15 |
| DE19980937D2 (en) | 2001-08-16 |
| WO1999061366A1 (en) | 1999-12-02 |
| EP1082267B1 (en) | 2003-04-09 |
| ATE236850T1 (en) | 2003-04-15 |
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