WO2008116530A1 - Device for the continuous mixing of gases in water - Google Patents
Device for the continuous mixing of gases in water Download PDFInfo
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- WO2008116530A1 WO2008116530A1 PCT/EP2008/001135 EP2008001135W WO2008116530A1 WO 2008116530 A1 WO2008116530 A1 WO 2008116530A1 EP 2008001135 W EP2008001135 W EP 2008001135W WO 2008116530 A1 WO2008116530 A1 WO 2008116530A1
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- water
- gas
- mixing
- chamber
- pressure
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/20—Mixing gases with liquids
- B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
- B01F23/232—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using flow-mixing means for introducing the gases, e.g. baffles
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES, NOT OTHERWISE PROVIDED FOR; PREPARATION OR TREATMENT THEREOF
- A23L2/00—Non-alcoholic beverages; Dry compositions or concentrates therefor; Preparation or treatment thereof
- A23L2/52—Adding ingredients
- A23L2/54—Mixing with gases
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/20—Mixing gases with liquids
- B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
- B01F23/236—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids specially adapted for aerating or carbonating beverages
- B01F23/2363—Mixing systems, i.e. flow charts or diagrams; Arrangements, e.g. comprising controlling means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/20—Mixing gases with liquids
- B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
- B01F23/237—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids characterised by the physical or chemical properties of gases or vapours introduced in the liquid media
- B01F23/2376—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids characterised by the physical or chemical properties of gases or vapours introduced in the liquid media characterised by the gas being introduced
- B01F23/23762—Carbon dioxide
- B01F23/237621—Carbon dioxide in beverages
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/40—Static mixers
- B01F25/45—Mixers in which the materials to be mixed are pressed together through orifices or interstitial spaces, e.g. between beads
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/40—Static mixers
- B01F25/45—Mixers in which the materials to be mixed are pressed together through orifices or interstitial spaces, e.g. between beads
- B01F25/452—Mixers in which the materials to be mixed are pressed together through orifices or interstitial spaces, e.g. between beads characterised by elements provided with orifices or interstitial spaces
- B01F25/4523—Mixers in which the materials to be mixed are pressed together through orifices or interstitial spaces, e.g. between beads characterised by elements provided with orifices or interstitial spaces the components being pressed through sieves, screens or meshes which obstruct the whole diameter of the tube
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/70—Spray-mixers, e.g. for mixing intersecting sheets of material
- B01F25/72—Spray-mixers, e.g. for mixing intersecting sheets of material with nozzles
Definitions
- the invention relates to a device for the continuous enrichment of gases or gas mixtures in water, comprising a device for mixing gas and water (mixing device) with a mixing chamber which is delimited upstream of a supply of water and gas nozzle body and downstream of a screening device, and an outflow chamber arranged downstream of the sieve device for the water / gas mixture produced in the mixing device, the nozzle body having an annular nozzle chamber for guiding and distributing the water to be enriched, which opens into a cylinder symmetry having annular nozzle to the mixing chamber, in which the gas supply parallel is arranged centrally to the cylinder axis
- the invention relates to the use of the device according to the invention.
- the carbon dioxide concentration that the drinking water has after passing through a carbonation stage depends on the water temperature and the
- Object of the present invention is therefore to provide a device of the type mentioned above, which enables a more effective carbonization of flowing drinking water in private households with little equipment and financial outlay and without much space.
- the object is achieved according to the device device according to the invention in that the mixing chamber has a uniformly tapering in the flow direction shape.
- the quality of the water / gas mixture produced during the extraction remains largely constant.
- the potential customer would not accept it if the amount of gas dissolved in the water were not subject to unpredictable timing variations, such as may be caused by pressure fluctuations during the mixing process.
- particular importance has been attached to the stability of the pressure conditions prevailing during the mixing of gas and water. As it turned out, the stability of these pressure ratios increases significantly when the mixing chamber is designed with a geometry whose cross-section between the nozzle body and the screening device - through which limits the mixing chamber on two sides - evenly reduced. By contrast, the radial symmetry of the mixing chamber geometry only insignificantly influences the pressure conditions.
- the mixing chamber has the shape of a straight conical or a straight truncated pyramid, wherein the base of the truncated pyramid has at least four corners.
- the outflow chamber is preferably carried out with a shape having the geometry of a straight conical or a straight truncated pyramid, the base of the truncated pyramid at least four Owns corners.
- Nozzle chamber and annular nozzle are designed such that due to the pressure losses that occur during removal of water / gas mixture from the mixing device, the flow profile of the entering into the mixing chamber water jet over the circumference of the annular nozzle is substantially constant.
- a large pressure loss via the annular nozzle has a favorable effect on the constancy of the flow profile, which is why a preferred embodiment of the device according to the invention provides that the annular nozzle is designed with sharp edges.
- This embodiment of the annular nozzle also favors the mixing of the water with the gas, which is centrally introduced into the mixing chamber and directed parallel to the water jet from the annular nozzle, as a mixing zone with a highly turbulent two-phase flow with a large contact surface between water and gas arises.
- a backflow forms in the mixing chamber, which ensures that gas bubbles produced by segregation of water and gas are returned to the mixing zone, where gas and water mix again.
- the mixing chamber-side end of the gas supply is designed as a straight tube (gas pipe).
- gas pipe For the mixture of gas and water, it has to be favorable proven when the gas supply projects beyond the annular nozzle out into the mixing chamber.
- An expedient embodiment of the device according to the invention therefore provides that the gas pipe projects up to a gas pipe diameter into the mixing chamber.
- the screening device arranged on the outlet side of the mixing chamber is constructed of micro-sieves. Gas bubbles with a diameter that is greater than the mesh size of the microsieves are divided by the screening device into smaller gas bubbles, whereby a substantially homogeneous distribution of the
- Gas bubble diameter is reached in the gas-enriched water.
- a preferred embodiment of the device according to the invention therefore provides that the water supply in the nozzle body is connected to a line in which a suitably adjustable Druckregel- and a check valve are arranged, wherein the check valve is arranged in the flow direction after the pressure control valve.
- Another preferred embodiment of the device according to the invention provides that the gas supply is connected in the nozzle body with a line in which a suitably adjustable Druckregel- and a check valve are arranged, wherein the check valve is arranged in the flow direction after the pressure control valve.
- the device according to the invention comprises a line and a dispensing device, wherein one end of the line is connected to the downstream end of the outflow chamber and the other end to the dispensing device such that water / gas produced in the mixing device Mixture can flow through the line to the dispensing device and can be removed via the dispensing device and, for example, in a drinking vessel can be filled.
- the line is a pipe or a hose and the tap to a faucet, as they stand for the supply of private households with drinking water Technology are.
- the invention further relates to the use of the device according to the invention for the enrichment of gases in flowing water.
- the object is achieved on the use side according to the invention in that the gases are supplied at a pressure of the mixing device, which substantially corresponds to the pressure at which the water is supplied to the mixing device.
- the invention therefore provides that both the gases and the water are supplied to the mixing device with controlled pressure.
- the device according to the invention is intended primarily for use in private households, where it is used to enrich a suitable for consumption gas (eg., Carbon dioxide) in flowing drinking water.
- a suitable for consumption gas eg., Carbon dioxide
- the invention provides that the gas is removed from a pressurized gas storage tank and the water of a drinking water pipe.
- the preparation of gas enriched water should be as simple as it is the removal of drinking water from a drinking water line in a private household usual way.
- the invention therefore provides that the enrichment of gas in flowing water is controlled by the opening and closing of a dispensing device connected via a line to the mixing device.
- the pressure in the mixing chamber initially drops rapidly before a steady state condition occurs in which water and gas mix in the mixing chamber in the correct ratio.
- the pressure in the mixing chamber increases to a value which corresponds to either the static pressure of the water or of the gas upstream of the mixing device, depending on which of the two pressures is higher.
- the present invention is suitable for enriching gases in flowing water, the water preferably being drinking water, which is usually available in domestic households as tap water, and the gas to be enriched is preferably carbon dioxide. But according to the invention, other gases such. As oxygen, or gas mixtures, such as. As air, are dissolved in flowing water.
- FIG. 1 shows a schematic longitudinal section of the construction of a mixing device according to the invention:
- the vertically arranged mixing device 1 has at its upper end to a nozzle body 5, the feeds for drinking water 3 and gas (eg carbon dioxide) 4 contains.
- Drinking water W is fed with a pressure of, for example, 3.5 bar via the feed 3 in the nozzle chamber 8 and flows from there via the annular nozzle 9 further into the downwardly tapering mixing chamber 2.
- the gas G flowing in at a pressure of, for example, 3.4 bar via the feed 4 passes via the cylindrical end of the feed 10, which simultaneously forms the inner part of the annular nozzle 9, as a turbulent jet directly into the mixing chamber 2 and relaxes there prevailing pressure.
- the expansion causes excellent mixing of water and carbon dioxide and the formation of large
- FIG. 2 shows the interconnection of a mixing device according to the invention with lines and fittings:
- the pressure control valve R1 and the check valve D1 drinking water flows from a drinking water network at the upper end in the mixing device B.
- the shut-off has the task to isolate the downstream fittings of the drinking water network if necessary, for example, to carry out repairs.
- the pressure regulating valve R1 ensures that the drinking water always flows into the mixing device B with a constant pressure of, for example, 3.5 bar.
- the check valve D1 prevents the backflow of water, gas or gas enriched water in the
- Drinking water network or an impermissibly high pressure rise in the drinking water network.
- Gas which is taken from a pressure bottle (not shown) flows through the lines 15, 16, 17 and 18 and the shut-off valve A2, the pressure regulating valve R2 and the check valve D2 also at the upper end in the mixing device B.
- the fittings in the gas inlet perform the same tasks as the corresponding fittings in the drinking water supply, with the difference that the pressure of carbon dioxide through the pressure regulating valve to a different pressure than the pressure of the drinking water (for example, 3.4 bar) can be controlled.
- the mixing device B enters with gas-enriched drinking water and is supplied via line 20, the open faucet A3 and the line 21 to a consumer (not shown).
- the pressure in the mixing chamber rises to the pressure of the drinking water, as it prevails immediately behind the pressure regulating valve R1.
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Dispersion Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Nutrition Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
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Abstract
Description
Beschreibung description
Vorrichtung zur kontinuierlichen Anreicherung von Gasen in WasserApparatus for continuous enrichment of gases in water
Die Erfindung betrifft eine Vorrichtung zur kontinuierlichen Anreicherung von Gasen oder Gasmischungen in Wasser, aufweisend eine Einrichtung zur Mischung von Gas und Wasser (Mischeinrichtung) mit einer Mischkammer, welche stromaufwärts von einem Zuführungen für Wasser und Gas aufweisenden Düsenkörper und stromabwärts von einer Siebeinrichtung begrenzt wird, sowie einer stromabwärts der Siebeinrichtung angeordneten Ausströmkammer für das in der Mischeinrichtung erzeugte Wasser/Gas- Gemisch, wobei der Düsenkörper zur Führung und Verteilung des anzureichernden Wassers eine ringförmige Düsenkammer aufweist, die zur Mischkammer hin in eine Zylindersymmetrie aufweisende Ringdüse mündet, in welcher die Gaszuführung parallel zur Zylinderachse mittig angeordnet istThe invention relates to a device for the continuous enrichment of gases or gas mixtures in water, comprising a device for mixing gas and water (mixing device) with a mixing chamber which is delimited upstream of a supply of water and gas nozzle body and downstream of a screening device, and an outflow chamber arranged downstream of the sieve device for the water / gas mixture produced in the mixing device, the nozzle body having an annular nozzle chamber for guiding and distributing the water to be enriched, which opens into a cylinder symmetry having annular nozzle to the mixing chamber, in which the gas supply parallel is arranged centrally to the cylinder axis
Weiterhin betrifft die Erfindung die Verwendung der erfindungsgemäßen Vorrichtung.Furthermore, the invention relates to the use of the device according to the invention.
Es sind bereits verschiedene Methoden vorgeschlagen worden, um karbonisiertes (mit Kohlendioxid versetztes) Trinkwasser direkt einem an das herkömmliche Leitungswassernetz angeschlossenen Wasserhahn entnehmen zu können. Allen Methoden ist gemeinsam, dass das dem Leitungswassernetz entnommene Trinkwasser über eine Karbonisierungsstufe geführt wird, in der das Trinkwasser mit Kohlendioxid angereichert und Kohlendioxid im Trinkwasser gelöst wird. Das so karbonisierte Trinkwasser wird anschließend zu einem Wasserhahn weitergeleitet.Various methods have already been proposed for removing carbonated (carbon dioxide-added) drinking water directly from a faucet connected to the conventional tap water network. All methods have in common that the tap water taken from the tap water is passed through a carbonation stage, in which the drinking water is enriched with carbon dioxide and carbon dioxide is dissolved in the drinking water. The carbonated drinking water is then forwarded to a tap.
Die Kohlendioxidkonzentration, die das Trinkwasser nach Durchlaufen einer Karbonisierungsstufe aufweist, ist abhängig von der Wassertemperatur und demThe carbon dioxide concentration that the drinking water has after passing through a carbonation stage, depends on the water temperature and the
Druck, bei dem die Anreicherung durchgeführt wird. Je niedriger die Wassertemperatur und je höher der Druck, desto mehr Kohlendioxid kann im Wasser gelöst werden.Pressure at which the enrichment is carried out. The lower the water temperature and the higher the pressure, the more carbon dioxide can be dissolved in the water.
Im Gegensatz zur Karbonisierung von ruhenden Wassermengen, wie sie beispielsweise in den auf dem Markt erhältlichen und in vielen Haushalten anzutreffenden Sprudelwasserbereitern durchgeführt wird, ist die Anreicherung einer strömenden Wassermenge mit Kohlendioxid weit schwieriger, besonders dann, wenn Wassertemperatur und Kohlendioxiddruck veränderlich sind. Stand der Technik sind Systeme mit einer separaten Pumpe sowie einem Wassertank mit integriertem Kühler, mit deren Hilfe konstante Temperatur- und Druckverhältnisse eingestellt werden. Derartige Systeme, die mit teuren Magnetventilen und aufwendigen Druckregelsystemen ausgestattet sind, werden zumeist für die Anreicherung großer Wassermengen in der Industrie ausgelegt und sind daher zu groß und zu teuer, um in Privathaushalten eingesetzt zu werden.In contrast to the carbonation of quiescent amounts of water, such as those that are available on the market and available in many households, the enrichment of a flowing amount of water with carbon dioxide is much more difficult, especially when water temperature and carbon dioxide pressure are variable. State of the art Systems with a separate pump and a water tank with integrated radiator, with the help of constant temperature and pressure conditions can be set. Such systems, which are equipped with expensive solenoid valves and complex pressure control systems, are usually designed for the accumulation of large amounts of water in the industry and are therefore too large and too expensive to be used in private households.
In der Patentschrift DE10240667B4 werden eine Vorrichtung sowie ein Verfahren zur Anreicherung von Gas oder Gasgemischen in trinkbarem Wasser beschrieben. Diese Vorrichtung, die nicht mit einem Wassertank ausgestattet und für Anreicherung von fließendem Wasser mit Kohlendioxid in Privathaushalten gedacht ist, weist zwar eine einfache und kompakte Karbonisierungsstufe auf, benötigt aber eine aufwendige und kostspielige Instrumentierung mit einer Vielzahl von Schalt- und Druckregulierungsventilen sowohl für das Wasser, als auch für das Kohlendioxidgas.In the patent DE10240667B4 an apparatus and a method for the enrichment of gas or gas mixtures in potable water are described. This device, which is not equipped with a water tank and is intended for enrichment of running water with carbon dioxide in private households, although has a simple and compact Karbonisierungsstufe, but requires a complex and costly instrumentation with a variety of switching and pressure regulating valves for both the water , as well as for the carbon dioxide gas.
Aufgabe der vorliegenden Erfindung ist es daher, eine Vorrichtung der eingangs genannten Art anzugeben, die mit geringem apparativem und finanziellem Aufwand und ohne großen Platzbedarf eine effektivere Karbonisierung von strömendem Trinkwasser in Privathaushalten ermöglicht.Object of the present invention is therefore to provide a device of the type mentioned above, which enables a more effective carbonization of flowing drinking water in private households with little equipment and financial outlay and without much space.
Die gestellte Aufgabe wird vorrichtungsseitig erfindungsgemäß dadurch gelöst, dass die Mischkammer eine in Strömungsrichtung sich gleichmäßig verjüngende Form aufweist.The object is achieved according to the device device according to the invention in that the mixing chamber has a uniformly tapering in the flow direction shape.
Für die wirtschaftliche Verwertbarkeit der beanspruchten Erfindung ist es von entscheidender Bedeutung, dass die Qualität des erzeugten Wasser/Gas-Gemisches während der Entnahme weitgehend konstant bleibt. Der potentielle Kunde würde es beispielsweise nicht akzeptieren, wenn die Menge des im Wasser gelösten Gases nicht vorhersagbaren zeitlichen Schwankungen unterworfen wäre, wie sie durch Druckschwankungen während des Mischvorgangs verursacht werden können. Bei der Entwicklung der beanspruchten Erfindung wurde daher besonderer Wert auf die Stabilität der während der Vermischung von Gas und Wassers herrschenden Druckverhältnisse gelegt. Wie sich herausstellte, erhöht sich die Stabilität dieser Druckverhältnisse wesentlich, wenn die Mischkammer mit einer Geometrie ausgeführt ist, deren Querschnitt sich zwischen dem Düsenkörper und der Siebeinrichtung - durch welche die Mischkammer an zwei Seiten begrenzt wird - gleichmäßig verkleinert. Die radiale Symmetrie der Mischkammergeometrie beeinflusst dagegen die Druckverhältnisse nur unwesentlich.For the economic utility of the claimed invention, it is of crucial importance that the quality of the water / gas mixture produced during the extraction remains largely constant. For example, the potential customer would not accept it if the amount of gas dissolved in the water were not subject to unpredictable timing variations, such as may be caused by pressure fluctuations during the mixing process. In the development of the claimed invention, particular importance has been attached to the stability of the pressure conditions prevailing during the mixing of gas and water. As it turned out, the stability of these pressure ratios increases significantly when the mixing chamber is designed with a geometry whose cross-section between the nozzle body and the screening device - through which limits the mixing chamber on two sides - evenly reduced. By contrast, the radial symmetry of the mixing chamber geometry only insignificantly influences the pressure conditions.
Bevorzugte Ausführungen der erfindungsgemäßen Vorrichtung sehen daher vor, dass die Mischkammer die Form eines geraden Kegel- oder eines geraden Pyramidenstumpfes aufweist, wobei die Grundfläche des Pyramidenstumpfes wenigstens vier Ecken besitzt.Preferred embodiments of the device according to the invention therefore provide that the mixing chamber has the shape of a straight conical or a straight truncated pyramid, wherein the base of the truncated pyramid has at least four corners.
Weiterhin hat sich herausgestellt, dass es sich günstig auf die Stabilität derFurthermore, it has been found that it is favorable to the stability of
Druckverhältnisse während des Mischvorgangs auswirkt, wenn die Ausströmkammer ebenfalls eine in Strömungsrichtung sich gleichmäßig verjüngende Form aufweist. Da es sich herausgestellt hat, dass die radiale Symmetrie der Ausströmkammer die Druckverhältnisse während des Mischvorgangs nur unwesentlich beeinflusst, wird die Ausströmkammer vorzugsweise mit einer Form ausgeführt, welche die Geometrie eines geraden Kegel- oder eines geraden Pyramidenstumpfes aufweist, wobei die Grundfläche des Pyramidenstumpfes wenigstens vier Ecken besitzt.Pressure conditions during the mixing process affects when the outflow chamber also has a uniformly tapering in the flow direction shape. Since it has been found that the radial symmetry of the outflow chamber affects the pressure conditions during the mixing process only insignificantly, the outflow chamber is preferably carried out with a shape having the geometry of a straight conical or a straight truncated pyramid, the base of the truncated pyramid at least four Owns corners.
Düsenkammer und Ringdüse sind derart ausgeführt, dass aufgrund der Druckverluste, die sich während einer Entnahme von Wasser/Gas-Gemisch aus der Mischeinrichtung einstellen, das Strömungsprofil des in die Mischkammer eintretenden Wasserstrahls über den Umfang der Ringdüse weitgehend konstant ist. Ein großer Druckverlust über die Ringdüse wirkt sich günstig auf die Konstanz des Strömungsprofils aus, weshalb eine bevorzugte Ausführung der erfindungsgemäßen Vorrichtung vorsieht, dass die Ringdüse mit scharfen Kanten ausgeführt ist. Diese Ausführung der Ringdüse begünstigt darüber hinaus die Mischung des Wassers mit dem Gas, das zentral in den aus der Ringdüse austretenden Wasserstrahl und parallel zu diesem gerichtet in die Mischkammer einleitbar ist, da eine Mischzone mit einer hochturbulenten Zweiphasenströmung mit einer großen Kontaktfläche zwischen Wasser und Gas entsteht. Gleichzeitig bildet sich in der Mischkammer eine Rückströmung aus, die dafür sorgt, dass durch Entmischung von Wasser und Gas entstehende Gasblasen in die Mischzone zurückgeführt werden, wo sich Gas und Wasser erneut mischen.Nozzle chamber and annular nozzle are designed such that due to the pressure losses that occur during removal of water / gas mixture from the mixing device, the flow profile of the entering into the mixing chamber water jet over the circumference of the annular nozzle is substantially constant. A large pressure loss via the annular nozzle has a favorable effect on the constancy of the flow profile, which is why a preferred embodiment of the device according to the invention provides that the annular nozzle is designed with sharp edges. This embodiment of the annular nozzle also favors the mixing of the water with the gas, which is centrally introduced into the mixing chamber and directed parallel to the water jet from the annular nozzle, as a mixing zone with a highly turbulent two-phase flow with a large contact surface between water and gas arises. At the same time, a backflow forms in the mixing chamber, which ensures that gas bubbles produced by segregation of water and gas are returned to the mixing zone, where gas and water mix again.
Vorzugsweise ist das mischkammerseitige Ende der Gaszuführung als gerades Rohr (Gasrohr) ausgeführt. Für die Mischung von Gas und Wasser hat es sich als günstig erwiesen, wenn die Gaszuführung über die Ringdüse hinaus in die Mischkammer hineinragt. Eine zweckmäßige Ausführung der erfindungsgemäßen Vorrichtung sieht daher vor, dass das Gasrohr um bis zu einen Gasrohrdurchmesser in die Mischkammer hineinragt.Preferably, the mixing chamber-side end of the gas supply is designed as a straight tube (gas pipe). For the mixture of gas and water, it has to be favorable proven when the gas supply projects beyond the annular nozzle out into the mixing chamber. An expedient embodiment of the device according to the invention therefore provides that the gas pipe projects up to a gas pipe diameter into the mixing chamber.
Eine zweckmäßige Weiterbildung der erfindungsgemäßen Vorrichtung sieht vor, dass die an der Austrittsseite der Mischkammer angeordnete Siebeinrichtung aus Mikrosieben aufgebaut ist. Gasblasen mit einem Durchmesser, der Größer als die Maschenweite der Mikrosiebe ist, werden durch die Siebeinrichtung in kleinere Gasblasen zerteilt, wodurch eine weitgehend homogene Verteilung derAn expedient development of the device according to the invention provides that the screening device arranged on the outlet side of the mixing chamber is constructed of micro-sieves. Gas bubbles with a diameter that is greater than the mesh size of the microsieves are divided by the screening device into smaller gas bubbles, whereby a substantially homogeneous distribution of the
Gasblasendurchmesser in dem mit Gas angereicherten Wasser erreichbar ist.Gas bubble diameter is reached in the gas-enriched water.
Wie sich bei der Entwicklung der erfindungsgemäßen Vorrichtung auch herausstellte, reichen wenige Armaturen in der Wasser- und Gaszuführung aus, um einen sicheren und stabilen Betrieb der Vorrichtung zu gewährleisten. Eine bevorzugte Ausführung der erfindungsgemäßen Vorrichtung sieht daher vor, dass die Wasserzuführung im Düsenkörper mit einer Leitung verbunden ist, in der ein zweckmäßiger Weise einstellbares Druckregel- sowie ein Rückschlagventil angeordnet sind, wobei das Rückschlagventil in Strömungsrichtung nach dem Druckregelventil angeordnet ist.As it turned out in the development of the device according to the invention, a few fittings in the water and gas supply sufficient to ensure safe and stable operation of the device. A preferred embodiment of the device according to the invention therefore provides that the water supply in the nozzle body is connected to a line in which a suitably adjustable Druckregel- and a check valve are arranged, wherein the check valve is arranged in the flow direction after the pressure control valve.
Eine andere bevorzugte Ausführung der erfindungsgemäßen Vorrichtung sieht vor, dass die Gaszuführung im Düsenkörper mit einer Leitung verbunden ist, in der ein zweckmäßiger Weise einstellbares Druckregel- sowie ein Rückschlagventil angeordnet sind, wobei das Rückschlagventil in Strömungsrichtung nach dem Druckregelventil angeordnet ist.Another preferred embodiment of the device according to the invention provides that the gas supply is connected in the nozzle body with a line in which a suitably adjustable Druckregel- and a check valve are arranged, wherein the check valve is arranged in the flow direction after the pressure control valve.
In einer weiteren zweckmäßigen Ausgestaltung umfasst die erfindungsgemäße Vorrichtung eine Leitung und eine Zapfeinrichtung, wobei das eine Ende der Leitung mit dem stromabwärts gelegenen Ende der Ausströmkammer (Ausströmöffnung) und das andere Ende mit der Zapfeinrichtung derart verbunden ist, dass in der Mischeinrichtung erzeugtes Wasser/Gas-Gemisch durch die Leitung zur Zapfeinrichtung strömen kann und über die Zapfeinrichtung entnehmbar und beispielsweise in ein Trinkgefäß einfüllbar ist. Vorzugsweise handelt es sich bei der Leitung um ein Rohr oder einen Schlauch und bei der Zapfeinrichtung um einen Wasserhahn, wie sie zur Versorgung von Privathaushalten mit Trinkwasser Stand der Technik sind.In a further expedient embodiment, the device according to the invention comprises a line and a dispensing device, wherein one end of the line is connected to the downstream end of the outflow chamber and the other end to the dispensing device such that water / gas produced in the mixing device Mixture can flow through the line to the dispensing device and can be removed via the dispensing device and, for example, in a drinking vessel can be filled. Preferably, the line is a pipe or a hose and the tap to a faucet, as they stand for the supply of private households with drinking water Technology are.
Wie sich darüber hinaus herausstellte, bildet sich über die Leitung und die Zapfeinrichtung während der Entnahme von Wasser/Gas-Gemisch ein Druckabfall aus, der groß genug ist, um einen stabilen Betrieb der erfindungsgemäßen Mischeinrichtung ohne eine zusätzliche Einrichtung zur Druckstabilisierung, wie sie nach dem Stand der Technik notwendig ist, und beispielsweise in der Patentschrift DE10240667B4 beschrieben wird, zu gewährleisten.As has also been found, a pressure drop, which is large enough to form a stable operation of the mixing device according to the invention without an additional pressure stabilization device, as described in the US Pat The prior art is necessary, and is described for example in the patent DE10240667B4, to ensure.
Die Erfindung betrifft weiterhin die Verwendung der erfindungsgemäßen Vorrichtung zur Anreicherung von Gasen in strömendem Wasser.The invention further relates to the use of the device according to the invention for the enrichment of gases in flowing water.
Die gestellte Aufgabe wird verwendungsseitig erfindungsgemäß dadurch gelöst, dass die Gase mit einem Druck der Mischeinrichtung zugeführt werden, der im Wesentlichen dem Druck entspricht, mit dem das Wasser der Mischeinrichtung zugeführt wird.The object is achieved on the use side according to the invention in that the gases are supplied at a pressure of the mixing device, which substantially corresponds to the pressure at which the water is supplied to the mixing device.
Bei der Erprobung der erfindungsgemäßen Vorrichtung hat sich gezeigt, dass die Gase am effektivsten im strömenden Wasser angereichert werden, wenn Gase und Wasser der Mischeinrichtung mit gleichen oder um bis zu ca. 10% verschiedenen Drücken zugeführt werden.In the testing of the device according to the invention has been shown that the gases are most effectively enriched in the flowing water when gases and water are supplied to the mixing device with the same or up to about 10% different pressures.
Für die Einstellung stabiler Druckverhältnisse in der Mischkammer hat es sich als wichtig herausgestellt, Gase und Wasser der Mischeinrichtung während der Anreicherung ohne Druckschwankungen zuzuführen. Die Erfindung sieht daher vor, dass sowohl die Gase als auch das Wasser der Mischeinrichtung mit geregeltem Druck zugeführt werden.For the adjustment of stable pressure conditions in the mixing chamber, it has proven to be important to supply gases and water to the mixing device during the enrichment without pressure fluctuations. The invention therefore provides that both the gases and the water are supplied to the mixing device with controlled pressure.
Die erfindungsgemäße Vorrichtung ist in erster Linie für den Einsatz in Privathaushalten vorgesehen, wo sie dazu verwendet wird, ein zum Verzehr geeignetes Gas (z. B. Kohlendioxid) in strömendem Trinkwasser anzureichern. Da üblicher Weise Privathaushalte über eine Leitung zwar mit Trinkwasser, jedoch nicht mit einem zum Verzehr geeigneten Gas versorgt werden, sieht die Erfindung vor, dass das Gas einem unter Überdruck stehenden Gasvorratsbehälter und das Wasser einer Trinkwasserleitung entnommen wird. Von entscheidender Bedeutung für den wirtschaftlichen Erfolg der Erfindung ist eine einfache Bedienung; die Bereitung von mit Gasen angereichertem Wasser soll so einfach sein wie es die Entnahme von Trinkwasser aus einer Trinkwasserleitung in einem Privathaushalt üblicher Weise ist. Die Erfindung sieht daher vor, dass die Anreicherung von Gas in strömendem Wasser durch das Öffnen und Schließen einer über eine Leitung mit der Mischeinrichtung verbundenen Zapfeinrichtung gesteuert wird. Wird die Zapfeinrichtung, bei der es sich zweckmäßiger Weise um einen handelsüblichen Wasserhahn handelt, geöffnet, fällt der Druck in der Mischkammer zunächst rasch ab, bevor sich ein stationärer Zustand einstellt, bei dem sich Wasser und Gas in der Mischkammer im richtigen Verhältnis mischen. Beim Schließen des Wasserhahns steigt der Druck in der Mischkammer auf einen Wert an, der entweder dem statischen Druck des Wassers oder des Gases vor der Mischeinrichtung entspricht, je nach dem, welcher der beiden Drücke der höhere ist.The device according to the invention is intended primarily for use in private households, where it is used to enrich a suitable for consumption gas (eg., Carbon dioxide) in flowing drinking water. Since the usual way private households are supplied via a line with drinking water, but not with a gas suitable for consumption, the invention provides that the gas is removed from a pressurized gas storage tank and the water of a drinking water pipe. Of crucial importance for the economic success of the invention is a simple operation; The preparation of gas enriched water should be as simple as it is the removal of drinking water from a drinking water line in a private household usual way. The invention therefore provides that the enrichment of gas in flowing water is controlled by the opening and closing of a dispensing device connected via a line to the mixing device. When the dispensing device, which is conveniently a commercially available faucet, is opened, the pressure in the mixing chamber initially drops rapidly before a steady state condition occurs in which water and gas mix in the mixing chamber in the correct ratio. When the faucet is closed, the pressure in the mixing chamber increases to a value which corresponds to either the static pressure of the water or of the gas upstream of the mixing device, depending on which of the two pressures is higher.
Die vorliegende Erfindung ist geeignet, Gase in strömendem Wasser anzureichern, wobei es sich bei dem Wasser vorzugsweise um Trinkwasser, wie es in Privathaushalten gewöhnlich als Leitungswassers zur Verfügung steht, und bei dem anzureichernden Gas bevorzugt um Kohlendioxid handelt. Erfindungsgemäß können aber auch andere Gase, wie z. B. Sauerstoff, oder Gasmischungen, wie z. B. Luft, in strömendem Wasser gelöst werden.The present invention is suitable for enriching gases in flowing water, the water preferably being drinking water, which is usually available in domestic households as tap water, and the gas to be enriched is preferably carbon dioxide. But according to the invention, other gases such. As oxygen, or gas mixtures, such as. As air, are dissolved in flowing water.
Neben dem Einsatz in Privathaushalten ist die Verwendung der Erfindung auch in Industriebetrieben, wie z. B. in Brauereien, denkbar.In addition to the use in private households, the use of the invention in industrial plants, such. B. in breweries, conceivable.
Anhand zweier in den Figuren 1 und 2 schematisch dargestellter Ausführungsbeispiele soll die Erfindung näher erläutert werden.With reference to two schematically illustrated in Figures 1 and 2 embodiments, the invention will be explained in more detail.
Figur 1 zeigt schematisch den Aufbau einer erfindungsgemäßen Mischeinrichtung im Längsschnitt:FIG. 1 shows a schematic longitudinal section of the construction of a mixing device according to the invention:
Die senkrecht angeordnete Mischeinrichtung 1 weist an ihrem oberen Ende einen Düsenkörper 5 auf, der Zuführungen für Trinkwasser 3 und Gas (z.B. Kohlendioxid) 4 enthält. Trinkwasser W wird mit einem Druck von beispielsweise 3,5bar über die Zuführung 3 in die Düsenkammer 8 geführt und strömt von dort über die Ringdüse 9 weiter in die sich nach unten verjüngende Mischkammer 2. Die Ringdüse 9, die Zylindersymmetrie besitzt und mit scharfen Kanten ausgeführt ist, bewirkt zum Einen eine starke Verwirbelung des in die Mischkammer 2 eintretenden Trinkwassers und zum Anderen einen erheblichen Druckverlust, der für eine weitgehende Gleichverteilung des Wassers über den Umfang der Ringdüse 9 sorgt. Das mit einem Druck beispielsweise 3,4 bar über die Zuführung 4 einströmende Gas G tritt über das zylindrische Ende der Zuführung 10, das gleichzeitig den inneren Teil der Ringdüse 9 bildet, als turbulenter Strahl direkt in die Mischkammer 2 ein und entspannt sich auf den dort herrschenden Druck. In Verbindung mit den in der Nähe der Düsenaustritte herrschenden Turbulenzen, bewirkt die Expansion eine ausgezeichnete Durchmischung von Wasser und Kohlendioxid sowie die Ausbildung großerThe vertically arranged mixing device 1 has at its upper end to a nozzle body 5, the feeds for drinking water 3 and gas (eg carbon dioxide) 4 contains. Drinking water W is fed with a pressure of, for example, 3.5 bar via the feed 3 in the nozzle chamber 8 and flows from there via the annular nozzle 9 further into the downwardly tapering mixing chamber 2. The annular nozzle 9, the Has cylindrical symmetry and is designed with sharp edges, on the one hand causes a strong turbulence of the entering into the mixing chamber 2 drinking water and on the other hand, a significant pressure drop, which ensures a substantial uniform distribution of water over the circumference of the annular nozzle 9. The gas G flowing in at a pressure of, for example, 3.4 bar via the feed 4 passes via the cylindrical end of the feed 10, which simultaneously forms the inner part of the annular nozzle 9, as a turbulent jet directly into the mixing chamber 2 and relaxes there prevailing pressure. In conjunction with the turbulence in the vicinity of the nozzle exits, the expansion causes excellent mixing of water and carbon dioxide and the formation of large
Kontaktflächen zwischen den beiden Stoffen. Gleichzeitig führen die beschriebenen Verhältnisse zur Ausbildung einer Zirkulationsströmung innerhalb der Mischkammer 2, durch die nicht gelöstes Gas in die turbulente Mischzone zurück befördert wird. Bevor das mit Gas angereicherte Trinkwasser M die Mischeinrichtung 1 nach über die Ausströmöffnung 7 nach unten verlässt, strömt es durch die aus Mikrosieben bestehende Siebeinrichtung 6, wo die Größenverteilung der Gasblasen homogenisiert wird, und durch die konisch geformte Ausströmkammer 22.Contact surfaces between the two substances. At the same time, the conditions described lead to the formation of a circulation flow within the mixing chamber 2, through which unresolved gas is conveyed back into the turbulent mixing zone. Before the gas-enriched drinking water M leaves the mixing device 1 downwards via the outflow opening 7, it flows through the sieve device 6 consisting of micro sieves, where the size distribution of the gas bubbles is homogenized, and through the conically shaped outflow chamber 22.
Figur 2 zeigt die Verschaltung einer erfindungsgemäßen Mischeinrichtung mit Leitungen und Armaturen:FIG. 2 shows the interconnection of a mixing device according to the invention with lines and fittings:
Über die Leitungen 11 , 12, 13 und 14 sowie die Absperrarmatur A1 , die Druckregelarmatur R1 und das Rückschlagventil D1 strömt Trinkwasser aus einem Trinkwasserleitungsnetz an deren oberem Ende in die Mischeinrichtung B. Die Absperrarmatur hat die Aufgabe, die stromabwärts liegenden Armaturen vom Trinkwassernetz zu isolieren, falls dieses beispielsweise zur Durchführung von Reparaturen notwendig ist. Die Druckregelarmatur R1 sorgt dafür, dass das Trinkwasser stets mit einem gleich bleibenden Druck von beispielsweise 3,5bar in die Mischeinrichtung B einströmt. Das Rückschlagventil D1 verhindert das Rückströmen von Wasser, Gas oder von mit Gas angereichertem Wasser in dasAbout the lines 11, 12, 13 and 14 and the shut-off valve A1, the pressure control valve R1 and the check valve D1 drinking water flows from a drinking water network at the upper end in the mixing device B. The shut-off has the task to isolate the downstream fittings of the drinking water network if necessary, for example, to carry out repairs. The pressure regulating valve R1 ensures that the drinking water always flows into the mixing device B with a constant pressure of, for example, 3.5 bar. The check valve D1 prevents the backflow of water, gas or gas enriched water in the
Trinkwasserleitungsnetz, bzw. einen unzulässig hohen Druckanstieg im Trinkwasserleitungsnetz.Drinking water network, or an impermissibly high pressure rise in the drinking water network.
Gas, das aus einer Druckflasche (nicht dargestellt) entnommen wird, strömt über die Leitungen 15, 16, 17 und 18 sowie die Absperrarmatur A2, die Druckregelarmatur R2 und das Rückschlagventil D2 ebenfalls an deren oberem Ende in die Mischeinrichtung B. Die Armaturen in der Gaszuleitung erfüllen die gleichen Aufgaben, wie die entsprechenden Armaturen in der Trinkwasserzuleitung, mit dem Unterschied, dass der Druck des Kohlendioxids durch die Druckregelarmatur auf einen anderen Druck, als den Druck des Trinkwassers (beispielsweise 3,4 bar) geregelt werden kann.Gas, which is taken from a pressure bottle (not shown) flows through the lines 15, 16, 17 and 18 and the shut-off valve A2, the pressure regulating valve R2 and the check valve D2 also at the upper end in the mixing device B. The fittings in the gas inlet perform the same tasks as the corresponding fittings in the drinking water supply, with the difference that the pressure of carbon dioxide through the pressure regulating valve to a different pressure than the pressure of the drinking water (for example, 3.4 bar) can be controlled.
Am unteren Ende der Mischeinrichtung B tritt mit Gas angereichertes Trinkwasser aus und wird über Leitung 20, den geöffneten Wasserhahn A3 und die Leitung 21 einem Verbraucher (nicht dargestellt) zugeführt. Sobald der Fluss des mit Gas angereicherten Trinkwassers durch Schließen des Wasserhahns A3 unterbrochen wird, steigt der Druck in der Mischkammer auf den Druck des Trinkwassers an, wie er unmittelbar hinter der Druckregelarmatur R1 herrscht. At the lower end of the mixing device B enters with gas-enriched drinking water and is supplied via line 20, the open faucet A3 and the line 21 to a consumer (not shown). As soon as the flow of the gas enriched with drinking water is interrupted by closing the tap A3, the pressure in the mixing chamber rises to the pressure of the drinking water, as it prevails immediately behind the pressure regulating valve R1.
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102007014611A DE102007014611A1 (en) | 2007-03-23 | 2007-03-23 | Apparatus for continuous enrichment of gases in water |
| DE102007014611.8 | 2007-03-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2008116530A1 true WO2008116530A1 (en) | 2008-10-02 |
Family
ID=39283778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2008/001135 Ceased WO2008116530A1 (en) | 2007-03-23 | 2008-02-14 | Device for the continuous mixing of gases in water |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE102007014611A1 (en) |
| WO (1) | WO2008116530A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009024139A3 (en) * | 2007-08-21 | 2009-04-30 | Biolog Gmbh | Device and method for intermittently impregnating drinking water with a gas and dispense thereof |
| WO2015109640A1 (en) * | 2014-01-21 | 2015-07-30 | 宋宁 | Gas nozzle rod for gas inlet device of turbine-type soda water maker |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202008002762U1 (en) * | 2008-02-27 | 2008-05-15 | Dsi Getränkearmaturen Gmbh | Device for gassing liquids |
| US11318427B2 (en) * | 2016-09-12 | 2022-05-03 | Pepsico, Inc. | Method and apparatus for instantaneous on-line carbonation of water through electrostatic charging |
| LU500315B1 (en) * | 2021-06-22 | 2022-12-22 | Rotarex Solutions S A | Carbonator with insulating housing |
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|---|---|---|---|---|
| GB2177618A (en) * | 1985-07-13 | 1987-01-28 | Adrian Philip Boyes | Gas-liquid contacting |
| DE9201154U1 (en) * | 1992-01-31 | 1993-06-03 | Oematech oekologische Maschinenbautechnik GmbH, O-4500 Dessau | Device for the continuous introduction of gas into a liquid |
| DE19851360A1 (en) * | 1998-11-08 | 2000-05-25 | Spiegel Margret | Method and arrangement for introducing gas into liquids using a novel mixer |
| DE20108721U1 (en) * | 2001-05-25 | 2002-01-24 | Anvar, Seyed Nooreddin, 40225 Düsseldorf | Module for mixing flowing liquids with gases |
| DE10240667A1 (en) * | 2002-09-04 | 2004-03-18 | Uwe Sonnenrein | Device for gassing potable water, comprises a nozzle unit and inlets for water and gas |
| DE10340024B3 (en) * | 2003-08-28 | 2005-04-14 | Thomas Funk | Device for enriching a liquid with at least one gas |
| AT7560U1 (en) * | 2004-05-13 | 2005-05-25 | Welte Manfred | DEVICE FOR OXYGEN ENRICHMENT OF DRINKING WATER |
-
2007
- 2007-03-23 DE DE102007014611A patent/DE102007014611A1/en not_active Withdrawn
-
2008
- 2008-02-14 WO PCT/EP2008/001135 patent/WO2008116530A1/en not_active Ceased
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2177618A (en) * | 1985-07-13 | 1987-01-28 | Adrian Philip Boyes | Gas-liquid contacting |
| DE9201154U1 (en) * | 1992-01-31 | 1993-06-03 | Oematech oekologische Maschinenbautechnik GmbH, O-4500 Dessau | Device for the continuous introduction of gas into a liquid |
| DE19851360A1 (en) * | 1998-11-08 | 2000-05-25 | Spiegel Margret | Method and arrangement for introducing gas into liquids using a novel mixer |
| DE20108721U1 (en) * | 2001-05-25 | 2002-01-24 | Anvar, Seyed Nooreddin, 40225 Düsseldorf | Module for mixing flowing liquids with gases |
| DE10240667A1 (en) * | 2002-09-04 | 2004-03-18 | Uwe Sonnenrein | Device for gassing potable water, comprises a nozzle unit and inlets for water and gas |
| DE10340024B3 (en) * | 2003-08-28 | 2005-04-14 | Thomas Funk | Device for enriching a liquid with at least one gas |
| AT7560U1 (en) * | 2004-05-13 | 2005-05-25 | Welte Manfred | DEVICE FOR OXYGEN ENRICHMENT OF DRINKING WATER |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009024139A3 (en) * | 2007-08-21 | 2009-04-30 | Biolog Gmbh | Device and method for intermittently impregnating drinking water with a gas and dispense thereof |
| US8641018B2 (en) | 2007-08-21 | 2014-02-04 | Suto GmbH & BioLogic GmbH | Device and method for the intermittent impregnation and output of drinking water |
| WO2015109640A1 (en) * | 2014-01-21 | 2015-07-30 | 宋宁 | Gas nozzle rod for gas inlet device of turbine-type soda water maker |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102007014611A1 (en) | 2008-09-25 |
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