EP0225526B1 - Device for treating a liquid with gas or for mixing liquids - Google Patents

Device for treating a liquid with gas or for mixing liquids Download PDF

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Publication number
EP0225526B1
EP0225526B1 EP86116151A EP86116151A EP0225526B1 EP 0225526 B1 EP0225526 B1 EP 0225526B1 EP 86116151 A EP86116151 A EP 86116151A EP 86116151 A EP86116151 A EP 86116151A EP 0225526 B1 EP0225526 B1 EP 0225526B1
Authority
EP
European Patent Office
Prior art keywords
distributor
gas
chamber
liquid
vibration
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.)
Expired - Lifetime
Application number
EP86116151A
Other languages
German (de)
French (fr)
Other versions
EP0225526A3 (en
EP0225526A2 (en
Inventor
Bruno Gruber
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ABS International SA
Original Assignee
ABS International SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE3543022A external-priority patent/DE3543022C1/en
Priority claimed from DE3608970A external-priority patent/DE3608970C1/en
Application filed by ABS International SA filed Critical ABS International SA
Priority to AT86116151T priority Critical patent/ATE85903T1/en
Publication of EP0225526A2 publication Critical patent/EP0225526A2/en
Publication of EP0225526A3 publication Critical patent/EP0225526A3/en
Application granted granted Critical
Publication of EP0225526B1 publication Critical patent/EP0225526B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • B01F23/238—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids using vibrations, electrical or magnetic energy, radiations
    • 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
    • B01F23/231—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids by bubbling
    • B01F23/23105—Arrangement or manipulation of the gas bubbling devices
    • B01F23/2312—Diffusers
    • B01F23/23121—Diffusers having injection means, e.g. nozzles with circumferential outlet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/40—Mixers using gas or liquid agitation, e.g. with air supply tubes
    • B01F33/409—Parts, e.g. diffusion elements; Accessories
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/71—Feed mechanisms
    • B01F35/717—Feed mechanisms characterised by the means for feeding the components to the mixer
    • B01F35/71755—Feed mechanisms characterised by the means for feeding the components to the mixer using means for feeding components in a pulsating or intermittent manner
    • 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
    • B01F23/231—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids by bubbling
    • B01F23/23105—Arrangement or manipulation of the gas bubbling devices
    • B01F23/2312—Diffusers
    • B01F23/23126—Diffusers characterised by the shape of the diffuser element
    • B01F23/231264—Diffusers characterised by the shape of the diffuser element being in the form of plates, flat beams, flat membranes or films

Abstract

Apparatus for mixing two fluids, which could be a gas and a liquid or two liquids, comprises a planar distribution outlet for the gas or one of the two liquids closing an otherwise airtight chamber and a vibrating membrane as a wall of the chamber. Tbe distribution outlet may itself be a vibrating perforated membrane.

Description

Die Erfindung betrifft eine Vorrichtung zur Begasung einer Trägerflüssigkeit oder zur Zumischung einer Zusatzflüssigkeit zu einer Trägerflüssigkeit mit einer Kammer, einem in die Kammer mündenden Gas- oder Flüssigkeitseinlaß, einem Verteiler, der mit Gas- bzw. Flüssigkeitsaustrittsöffnungen versehen ist, sowie einer Vibrationseinrichtung.The invention relates to a device for gassing a carrier liquid or for admixing an additional liquid to a carrier liquid with a chamber, a gas or liquid inlet opening into the chamber, a distributor which is provided with gas or liquid outlet openings, and a vibration device.

Bei einer bekannten Vorrichtung der genannten Art (DE-A- 1 917 962) ist im Inneren einer Kammer, in das gasförmige Medium eingeleitet wird, eine Stoßdruckwellenquelle angeordnet, die vibrieren oder Schall aussenden kann. Die Stoßdruckwellenquelle bewirkt ein Abreißen der Gasfäden, die durch den als Lochplatte ausgebildeten Verteiler hindurchtreten.In a known device of the type mentioned (DE-A-1 917 962), a shock pressure wave source, which can vibrate or emit sound, is arranged inside a chamber into which gaseous medium is introduced. The shock pressure wave source causes the gas filaments, which pass through the distributor designed as a perforated plate, to be torn off.

Bei einer anderen bekannten Vorrichtung (DE-A-3 039 969) ist ein Gasblasenausströmer vorgesehen, der eine feinperforierte Oszillatormembrane umfaßt. Der Gasblasenausströmer ist in eine Flüssigkeit getaucht und gerät, wenn er kontinuierlich mit Gas beaufschlagt wird, selbsttätig in Schwingungen, wodurch feine Gasblasen in pulsierenderweise erzeugt werden.In another known device (DE-A-3 039 969) a gas bubble outlet is provided which comprises a finely perforated oscillator membrane. The gas bubble emitter is immersed in a liquid and, if it is continuously subjected to gas, automatically vibrates, whereby fine gas bubbles are generated in a pulsating manner.

Bei einer weiteren bekannten Vorrichtung (GB-A-497 741) besteht der Verteiler aus einer pulsierenden Siebbodenkolonne, die in einem mit einer Flüssigkeit gefüllten Gefäß auf- und abbewegbar ist. Die Siebböden sind von drei vertikalen Zuleitungen getragen, durch die das zu dispergierende Gas unter den untersten Siebboden geleitet wird.In another known device (GB-A-497 741) the distributor consists of a pulsating sieve plate column which can be moved up and down in a vessel filled with a liquid. The sieve trays are supported by three vertical feed lines through which the gas to be dispersed is led under the lowest sieve tray.

Weiterhin sind zahlreiche Vorrichtungen bekannt, um Flüssigkeiten miteinander zu vermischen. Bei diesen bekannten Vorrichtungen handelt es sich um die Eintragung von Flüssigkeit in eine andere Flüssigkeit mittels mechanischer Verwirbelung. Um mit den bekannten Möglichkeiten Mischungen oder Emulsionen herzustellen, wird eine große Menge an Bewegungsenergie verbraucht. Unerwünscht ist auch oftmals die Temperaturerhöhung durch die dabei auftretende Reibung.Numerous devices are also known for mixing liquids with one another. These known devices involve the introduction of liquid into another liquid by means of mechanical swirling. In order to produce mixtures or emulsions with the known possibilities, a large amount of kinetic energy is consumed. It is also often undesirable to raise the temperature due to the friction that occurs.

Der Erfindung liegt die Aufgabe zugrunde, eine Vorrichtung zu schaffen, die es ermöglicht, mit geringem Energieaufwand große Mengen an Gas oder Zusatzflüssigkeit in feinverteilter Form in eine Trägerflüssigkeit einzutragen, ohne daß diese in turbulente Bewegung gebracht werden muß und sich dadurch in oft unerwünschter Weise aufheizt.The invention has for its object to provide a device which enables large amounts of gas or additional liquid to be introduced in finely divided form into a carrier liquid with little energy expenditure, without this having to be brought into turbulent movement and thereby heating up in an often undesirable manner .

Die Aufgabe wird erfindungsgemäß dadurch gelöst, daß der Verteiler, die diesem gegenüberliegende Wand oder beide gemeinsam relativ zur Kammer schwingungsfähig ausgebildet bzw. gelagert sind und daß die Vibrationseinrichtung mit dem Verteiler, mit der dem Verteiler gegenüberliegenden Wand oder mit beiden verbunden ist und diese mit Schwingungen beaufschlagt, wobei das Volumen der Kammer pulsierend komprimierbar ist.The object is achieved in that the distributor, the wall opposite this or both are designed or mounted to vibrate relative to the chamber and that the vibrating device is connected to the distributor, to the wall opposite the distributor or to both, and this with vibrations acted upon, the volume of the chamber being pulsatile compressible.

Der Verteiler ist vorzugsweise als Membran ausgebildet, die beispielsweise mit Hilfe der Vibrationseinrichtung in Schwingungen versetzt wird.The distributor is preferably designed as a membrane, which is set in vibration, for example, with the aid of the vibration device.

Der Verteiler kann mit der Kammer über eine elastische Zwischenlage verbunden sein, so daß der Verteiler auch im wesentlichen als starre Platte ausgebildet sein kann, wobei die pulsierende Komprimierung über die elastische Zwischenlage bewirkt wird.The distributor can be connected to the chamber via an elastic intermediate layer, so that the distributor can also be designed essentially as a rigid plate, the pulsating compression being effected via the elastic intermediate layer.

Die Vibrationseinrichtung besteht zweckmäßig aus einem elektromagnetischen Schwingungserzeuger.The vibration device suitably consists of an electromagnetic vibration generator.

Die Vibrationseinrichtung kann über ein starres Gestänge mit dem Verteiler und/oder der diesem gegenüberliegenden Wand verbunden sein.The vibrating device can be connected to the distributor and / or the wall opposite this via a rigid linkage.

Anzahl und Größe der austretenden Gas- oder Flüssigkeitsblasen kann in weitem Bereich mit der Menge der Flüssigkeits- oder Gaszufuhr, der Anzahl und Größe der Bohrungen des Verteilers, der Frequenz und Amplitude der Schwingung des Schwingungserzeugers eingestellt werden. Der Austritt der feinen Bläschen aus dem Verteiler erfolgt immer, wenn der Schwingungserzeuger Druck auf den Verteiler bzw. die Membran ausübt und somit der Gas- oder Flüssigkeitsüberdruck am Verteiler zunimmt.The number and size of the escaping gas or liquid bubbles can be set in a wide range with the amount of liquid or gas supply, the number and size of the bores of the distributor, the frequency and amplitude of the oscillation of the vibration generator. The fine bubbles always emerge from the distributor when the vibration generator exerts pressure on the distributor or the membrane and the gas or liquid overpressure on the distributor thus increases.

Anhand von vier schematischen Zeichnungen sollen Ausführungsbeispiele der erfindungsgemäßen Vorrichtung erläutert werden.Exemplary embodiments of the device according to the invention are to be explained on the basis of four schematic drawings.

Figur 1 zeigt einen Querschnitt durch eine Vorrichtung mit einem Verteiler 1, der am Rand der Kammer 2 befestigt ist, eine Gas- oder Flüssigkeitszufuhrleitung 3 besitzt und eine Vibrationseinrichtung 5 aufweist, die über ein starres Gestänge 4 auf die Membran 10 einwirkt und das in der Kammer 2 befindliche Gas oder die Flüssigkeit pulsieren läßt, so daß der Verteiler 1 synchron zur Vibrationsfrequenz feine Bläschen 6 in eine umgebende Flüssigkeit abgibt.Figure 1 shows a cross section through a device with a distributor 1, which is attached to the edge of the chamber 2, has a gas or liquid supply line 3 and has a vibration device 5, which acts on the membrane 10 via a rigid linkage 4 and that in the Chamber 2 located gas or the liquid can pulsate, so that the distributor 1 releases synchronous to the vibration frequency fine bubbles 6 in a surrounding liquid.

Figur 2 zeigt einen Querschnitt durch eine Vorrichtung mit einer gelochten Membran als Verteiler 1, der auf der Kammer 2 befestigt ist, wobei eine Vibrationseinrichtung 5 über ein starres Gestänge 4 auf den Verteiler 1 einwirkt.Figure 2 shows a cross section through a device with a perforated membrane as a distributor 1, which is attached to the chamber 2, wherein a vibrating device 5 acts on the distributor 1 via a rigid linkage 4.

Figur 3 zeigt einen Querschnitt durch eine Vorrichtung mit einer starren gelochten Platte als Verteiler 1, der auf der Kammer 2 über eine elastische Zwischenlage 8 (beispielsweise Gummi) befestigt ist und eine Vibrationseinrichtung 5 aufweist, die über ein starres Gestänge 4 auf den Verteiler 1 einwirkt.Figure 3 shows a cross section through a device with a rigid perforated plate as a distributor 1, which is fastened to the chamber 2 via an elastic intermediate layer 8 (for example rubber) and has a vibration device 5 which acts on the distributor 1 via a rigid linkage 4 .

Figur 4 zeigt einen Querschnitt durch eine Vorrichtung mit einem Verteiler 1, der in die Seite eines mit Flüssigkeit gefüllten Rohres 9 eingesetzt ist, wobei die auf die Membran 10 einwirkende Vibrationseinrichtung 5 mit einem zweiten Gestänge 7 im Inneren der Kammer 2 eine starre Verbindung mit dem Verteiler 1 besitzt. Der Verteiler 1 besteht in dieser Ausführung aus einer gelochten Membran.Figure 4 shows a cross section through a device with a distributor 1, which is inserted into the side of a tube 9 filled with liquid, the vibrating device 5 acting on the membrane 10 with a second linkage 7 inside the chamber 2 providing a rigid connection with the Distributor 1 owns. In this embodiment, the distributor 1 consists of a perforated membrane.

Claims (5)

  1. Device for gassing a carrier fluid or for mixing an additional fluid with a carrier fluid, having a chamber (2), a gas or fluid inlet (3) opening out into the chamber (2), a distributor (1), which is provided with gas and fluid outlet openings, and a vibration device (5), characterised in that the distributor (1), the wall (10) lying opposite the latter or both the distributor and the said wall are formed or mounted jointly so as to be capable of vibration relative to the chamber; and in that the vibration device (5) is connected to the distributor (1), to the wall (10) opposite the distributor (1) or to both the distributor and the wall and acts upon the latter with vibrations, it being possible for the volume of the chamber (2) to be compressed in a pulsating manner.
  2. Device according to Claim 1, characterised in that the distributor (1) is in the form of a diaphragm.
  3. Device according to claim 1 or 2, characterised in that the distributor (1) is connected to the chamber (2) via a resilient intermediate layer (8).
  4. Device according to any one of Claims 1 to 3, characterised in that the vibration device (5) is in the form of an electromagnetic vibration generating device.
  5. Device according to any one of Claims 1 to 4, characterised in that the vibration device (5) is connected via a rigid linkage (4, 7) to the distributor (1) and/or the wall (10) opposite the latter.
EP86116151A 1985-12-05 1986-11-21 Device for treating a liquid with gas or for mixing liquids Expired - Lifetime EP0225526B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86116151T ATE85903T1 (en) 1985-12-05 1986-11-21 DEVICE FOR GASING LIQUIDS OR FOR MIXING LIQUIDS.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3543022 1985-12-05
DE3543022A DE3543022C1 (en) 1985-12-05 1985-12-05 Appliance for mixing gas into a liquid
DE3608970 1986-03-18
DE3608970A DE3608970C1 (en) 1986-03-18 1986-03-18 Apparatus for mixing liquids

Publications (3)

Publication Number Publication Date
EP0225526A2 EP0225526A2 (en) 1987-06-16
EP0225526A3 EP0225526A3 (en) 1988-09-07
EP0225526B1 true EP0225526B1 (en) 1993-02-24

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP86116151A Expired - Lifetime EP0225526B1 (en) 1985-12-05 1986-11-21 Device for treating a liquid with gas or for mixing liquids

Country Status (4)

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US (1) US4793714A (en)
EP (1) EP0225526B1 (en)
AT (1) ATE85903T1 (en)
DE (1) DE3687824D1 (en)

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US20060060991A1 (en) * 2004-09-21 2006-03-23 Interuniversitair Microelektronica Centrum (Imec) Method and apparatus for controlled transient cavitation
US10377651B2 (en) * 2006-10-30 2019-08-13 Perlemax Ltd Bubble generation for aeration and other purposes
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Also Published As

Publication number Publication date
US4793714A (en) 1988-12-27
ATE85903T1 (en) 1993-03-15
EP0225526A3 (en) 1988-09-07
DE3687824D1 (en) 1993-04-01
EP0225526A2 (en) 1987-06-16

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