EP0263443B1 - Method and device for producing a water-in-oil emulsion - Google Patents

Method and device for producing a water-in-oil emulsion Download PDF

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EP0263443B1
EP0263443B1 EP19870114400 EP87114400A EP0263443B1 EP 0263443 B1 EP0263443 B1 EP 0263443B1 EP 19870114400 EP19870114400 EP 19870114400 EP 87114400 A EP87114400 A EP 87114400A EP 0263443 B1 EP0263443 B1 EP 0263443B1
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Prior art keywords
mixing chamber
water
oil
emulsion
characterized
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German (de)
French (fr)
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EP0263443A3 (en
EP0263443A2 (en
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Gerold Dr. Kunz
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Zugol AG
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Zugol AG
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Priority to CH4013/86 priority
Priority to CH2664/87 priority
Priority to CH2664/87A priority patent/CH673235A5/en
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Priority claimed from AT87114400T external-priority patent/AT76328T/en
Publication of EP0263443A2 publication Critical patent/EP0263443A2/en
Publication of EP0263443A3 publication Critical patent/EP0263443A3/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
    • B01F3/00Mixing, e.g. dispersing, emulsifying, according to the phases to be mixed
    • B01F3/08Mixing, e.g. dispersing, emulsifying, according to the phases to be mixed liquids with liquids; Emulsifying
    • B01F3/0807Emulsifying
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
    • B01F5/00Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F5/0057Mixing by creating a vortex flow, e.g. by tangentially introducing jets
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
    • B01F5/00Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F5/0057Mixing by creating a vortex flow, e.g. by tangentially introducing jets
    • B01F5/0062Mixing by creating a vortex flow, e.g. by tangentially introducing jets wherein the vortex is created by two or more jets introduced tangentially in separate mixing chambers or consecutively in the same mixing chamber
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
    • B01F3/00Mixing, e.g. dispersing, emulsifying, according to the phases to be mixed
    • B01F3/08Mixing, e.g. dispersing, emulsifying, according to the phases to be mixed liquids with liquids; Emulsifying
    • B01F3/0807Emulsifying
    • B01F2003/0823Emulsifying characterized by the internal structure of the emulsion
    • B01F2003/0842Emulsions of oils, e.g. fuel, and water
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
    • B01F5/00Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F2005/0002Direction of flow or arrangement of feed and discharge openings
    • B01F2005/0037Characterised by the disposition of the feed and discharge openings
    • B01F2005/004Characterised by the arrangement of the feed openings for one or more flows, e.g. for the mainflow and the flow of an additional component
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
    • B01F2215/00Auxiliary or complementary information in relation with mixing
    • B01F2215/0001Field of application of the mixing device
    • B01F2215/0088Mixing fuel and water or other fluids to obtain liquid fuel emulsions
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02BINTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B3/00Engines characterised by air compression and subsequent fuel addition
    • F02B3/06Engines characterised by air compression and subsequent fuel addition with compression ignition
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02FCYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F7/00Casings, e.g. crankcases or frames
    • F02F2007/0097Casings, e.g. crankcases or frames for large diesel engines

Description

  • Die vorliegende Erfindung betrifft ein Verfahren und ein Gerät zur rein mechanischen Erzeugung einer Wasser-in-Oel-Emulsion, bei welchem zur Erzielung eines vorbestimmten Wasser/Oel-Mengenverhältnisses aus getrennten Vorratsbehältern Wasser und Oel dosiert zusammengeführt und anschliessend das Gemisch in eine Mischkammer gefördert, dort die Emulsion mittels Durchmischung der beiden Komponenten gebildet, die Emulsion einem Vorratsraum und ein Teil dieser Emulsion aus dem Vorratsraum einem Verbraucher zugeführt und nicht verbrauchter Teil der Emulsion in die Mischkammer zurückgeführt wird. The present invention relates to a method and apparatus for purely mechanical production of a water-in-oil emulsion, wherein in order to obtain a predetermined water / oil volume ratio from separate reservoirs of water and oil dosed together and subsequently conveyed the mixture to a mixing chamber, there formed the emulsion by mixing of the two components supplied to the emulsion a storage chamber and a portion of this emulsion from the reservoir to a consumer and unused portion of the emulsion is recycled into the mixing chamber.
  • Es ist eine Vielzahl von Emulgatoren, dh chemische Zusatzstoffe, bekannt, welche zur Erzeugung von wenigstens kurzzeitig stabilen Emulsionen, dh homogene Vermischungen zweier an sich nicht mischbarer Stoffe, wie zB eine Wasser-Oel-Flüssigkeit, verwendet werden. A variety of emulsifiers, that is, chemical additives are known which for generating at least briefly stable emulsions, ie, homogeneous mixing of two immiscible substances per se, such as are used, for example, a water-oil liquid. Ebenfalls gibt es einige wenige mechanische Verfahren zur Erzeugung von Emulsionen, wobei die Emulsionen aber nach unterschiedlich langer Zeit wieder entmischt werden. Also, there are few mechanical methods for producing emulsions, the emulsions are segregated but again different lengths of time.
  • In einer Reihe von Anwendungsfällen, gerade bei Brennkraftmaschinen und Oelbrennern, braucht ein Stoffgemisch, wie zB eine Emulsion, nur kurzfristig in einer bestimmten Form vorzuliegen. In a number of applications, especially for internal combustion engines and oil burners, requires a mixture of substances, such as an emulsion to exist in some form, even temporarily.
  • Das Ziel der vorliegenden Erfindung lag in der Schaffung eines Verfahrens bzw. eines Gerätes, welches insbesondere für den Einsatz in Kraftfahrzeugen eine Wasser-in-Oel-Emulsion als Brennstoff für Dieselmotoren zuverlässig und auf möglichst einfache Weise aufbereitet. The object of the present invention was to provide a method and a device which prepared in particular for use in motor vehicles, a water-in-oil emulsion as a fuel for diesel engines reliable and simplest possible way. Das Beimischen von Wasser in Kraftstoffe führt zu geringerem Kraftstoffverbrauch, reduzierten Schadstoffen oder zu einer Leistungssteigerung von Verbrennungsmotoren. The admixture of water in fuels leads to lower fuel consumption, reduced pollution or an increase in efficiency of combustion engines. Herkömmlicherweise wird dabei über eine separate Einspritzanlage das Wasser in den Zylinderraum eingebracht und vermischt sich dort mit dem eingespritzten Brennstoff kurz vor der Verbrennung. Conventionally, is thereby introduced via a separate injection, the water in the cylinder chamber and mixes with the injected fuel just prior to combustion.
  • Dies bedeutet aber einen enormen Mehraufwand an Zusatzaggregaten am Motor selbst und wird praktisch nur an Grossdieselmotoren oder dort, wo kurzzeitig eine grosse Leistung erforderlich ist, eingesetzt. But this requires a huge additional expenditure of additional units on the engine itself and is practically used only to large diesel engines or where a short time a large power is required.
  • Wenigstens teilweise mechanisch arbeitende Verfahren und Einrichtungen zur Erzeugung einer Wasser-in-Oel Emulsion sind aus US-A-3 606 868 und GB-A-2 062 091 bekannt. At least partially mechanically working method and means for producing a water-in-oil emulsion are known from US-A-3,606,868 and GB-A-2062091. Bei diesen wird aus getrennten Vorratsbehältern Wasser bzw. Oel in eine Mischkammer geführt, dort die Emulsion mittels Durchmischung der beiden Komponenten gebildet und zumindest ein Teil dieser Emulsion aus der Mischkammer einem Verbraucher zugeführt und gegebenenfalls nicht verbrauchter Teil der Emulsion in die Mischkammer zurückgeführt wird. In this water is guided or oil in a mixing chamber formed there, the emulsion by mixing the two components and supplied to at least a portion of this emulsion from the mixing chamber to a consumer and optionally unused portion of the emulsion is recycled into the mixing chamber from separate reservoirs.
  • Bei diesen bekannten Einrichtungen kann die Durchmischung und Stabilität der Emulsion nicht optimal gewährleistet werden, es sei denn es würden noch zusätzlich chemische Stabilisatoren einesetzt (vgl. US-A-3 606 868). In these known devices, the mixing and stability of the emulsion can not be optimally ensured, unless it would additionally chemical stabilizers one sets (see. US Patent No. 3,606,868).
  • Für den Einsatz in Verbrennungsmaschinen kommen chemische Emulgatoren wegen der Erzeugung zusätzlicher Schadstoffe nicht in Betracht. For use in internal combustion engines chemical emulsifiers are not eligible because of the generation of additional pollutants. Herkömmliche mechanische Geräte zur Erzielung von Wasser-in-Oel-Emulsionen weisen aber den Nachteil auf, dass bei den erforderlichen kleinen Durchflussmengen beispielsweise für leichte Fahrzeugdieselmotoren kein konstantes Mischungsverhältnis erreicht wird, was aber für einen vernünftigen Betrieb gefordert werden muss. However, conventional mechanical devices for obtaining water-in-oil emulsions have the disadvantage that at the required low flow rates no constant mixing ratio is achieved, for example, for light vehicle diesel engines, but must be requested for reasonable operation.
  • Das erfindungsgemässe Verfahren der eingangs definierten Art zeichnet sich durch die Merkmale gemäss kennzeichnendem Teil von Anspruch 1 aus. The inventive method of the type defined at the outset is characterized according to the characterizing part of claim 1 by the features.
  • Die gestellte Aufgabe wird bei einem Gerät mit einer an getrennte Vorratsbehälter für Wasser bzw. Oel angeschlossenen Mischkammer und mit dieser in Verbindung stehendem Vorratsraum mit einer zu einem Verbraucher führenden Auslassleitung, mit einer Dosiervorrichtung zur Erzielung eines vorbestimmten Wasser/Oel-Mengenverhältnisses, und mit einer Verbindungsleitung zwischen der Dosiervorrichtung und der Mischkammer, durch welche die dosierten Wasser- und Oelmengen in die Mischkammer geführt werden, nach der Erfindung gelöst durch die Merkmale gemäss dem kennzeichnenden Teil von Anspruch 2. This object is for a device with a load connected to a separate reservoir for water or oil mixing chamber and with this standing in connection reservoir with a line leading to a consumer outlet, with a dosing device to obtain a predetermined water / oil volume ratio, and with a connection line between the metering device and the mixing chamber, through which are fed into the mixing chamber, the metered water and Oelmengen, according to the invention solved by the features according to the characterizing part of claim. 2
  • Besonders vorteilhaft für den Einsatz in Fahrzeugmotoren hat sich die Dosiervorrichtung mit Membranwänden und elektromagnetischem Hubantrieb erwiesen. It is particularly advantageous for use in vehicle engines, the dosing device has proved with membrane walls and electromagnetic linear actuator. Sie ist geeignet, bei den ständig ändernden Betriebsbedingungen ein konstantes Wasser-Oel-Verhältnis zu erreichen. It is suitable to achieve a constant water-oil ratio in the ever-changing operating conditions. Gleichzeitig weist das Gerät eine besonders vorteilhafte Notlaufeigenschaft auf, indem selbst bei unterbrochener Stromzufuhr zum Hubantrieb Dieselöl zum Motorbetrieb durch entsprechende Dimensionierung der Rückschlagventile und des Magnetes in den Leitungen zur Verfügung steht. At the same time, the device has a particularly advantageous emergency running by itself is with interrupted power supply to the lift drive diesel oil to the engine operation by appropriate dimensioning of the check valves and the magnet in the lines available.
  • Als äusserst wichtig zur Erzielung einer stabilen Emulsion im Gerät hat sich erwiesen, dass die Fördermittel zur Erzeugung eines ständigen geschlossenen Kreislaufs im Gerät die Flüssigkeit bzw. deren Komponenten nur sanft beschleunigen darf, wie dies beispielsweise durch gebogene Förderschaufeln einer elektrisch betriebenen Niederdruck-Kreiselpumpe erzielt wird. To be extremely important for obtaining a stable emulsion in the device has been found that the conveying means for generating a continuous closed loop in the device may accelerate the fluid or its components, only gentle, this is achieved for example by curved impeller blades an electrically driven low-pressure centrifugal pump ,
  • Ebenfalls darf die Durchmischung und Verwirbelung in der Mischkammer nicht abrupt erfolgen. Also, the mixing and swirling in the mixing chamber must not be abrupt. Vorzugsweise ist die Mischkammer halbkugelförmig mit zwei konzentrischen Kammern ausgebildet, wobei die innere Kammer in einen sich trichterförmig verengenden Teil mündet, wo die Emulsion beschleunigt wird und ebenfalls der Drall, den sie durch die tangentiale Zuführung in die äussere Kammer erhalten hat, verstärkt wird und die Durchmischung fördert. Preferably the mixing chamber is hemispherical in shape with two concentric chambers, the inner chamber opening into a funnel-shaped narrowing part, where the emulsion is accelerated and also the twist which it has obtained by the tangential feed into the outer chamber, is amplified and mixing promotes.
  • Der sich trichterförmig verengende Kanal mündet vorzugsweise in eine etwa zylinderförmige Expansionskammer, womit eine Verstärkung der Durchmischung erreicht wird. The funnel-shaped narrowing channel preferably opens into an approximately cylindrical expansion chamber, thus an enhancement of the mixing is achieved. Diese Expansionskammer mündet schliesslich, sich am Ende wiederum verengend, in einen Vorratsraum. This expansion chamber opens, finally, at the end turn narrows into a pantry.
  • Im Vorratsraum wird die Emulsion durch tangentialen Einlass ständig in Bewegung gehalten, wodurch sie nicht entmischt wird und stabil bleibt. In the storage space, the emulsion is held by tangential inlet constantly in motion, whereby it is does not separate and remains stable.
  • Der Vorratsraum weist einen Verbindungskanal zu der Saugseite der Flügelradpumpe auf, so dass im Gerät ständig ein geschlossener Kreislauf aufrechterhalten bleibt, dies solange wie die Fördermittel in Betrieb stehen. The pantry has a connecting channel to the suction side of the impeller, so constantly a closed circuit is maintained in the set which as long as the funds are in operation.
  • Der Vorratsraum besitzt ebenfalls eine Entnahmeleitung für die Zuleitung der Emulsion zum Verbraucher, beispielsweise zur Einspritzpumpe eines Dieselmotors. The reservoir also has a removal line for supplying the emulsion to the consumer, for example, to the injection pump of a diesel engine. Dieser Anschluss liegt vorzugsweise etwa in derselben Querschnittsebene im Vorratsraum wie der Zulauf aus der Mischkammer. This connector is preferably approximately the same cross-sectional plane in the reservoir as the feed from the mixing chamber. Als ideal hat sich ein halbkugelförmig ausgebildeter Teil des Vorratsraumes mit im Zenit angebrachter Entlüftungsöffnung erwiesen. As ideal a hemispherical trained part of the reservoir has proved to be more appropriate in the zenith vent.
  • Wird das Gerät zum Betreiben eines Fahrzeug-Dieselmotors verwendet, so fallen an den Einspritzdüsen kleine Leckagemengen von Treibstoff, hier also von Emulsion an, welche wieder zurückgeführt werden müssen. If the device is used for operating a vehicle diesel engine, so fall to the injectors to small leakage quantities of fuel, in this case of emulsion which have to be recirculated. Dazu ist ein zusätzlicher Anschluss im Saugbereich der Flügelradpumpe vorgesehen. For this purpose, an additional port is provided in the suction of the impeller.
  • Für den Einsatz in Fahrzeugmotoren hat sich ein Wasser-zu-Oel Verhältnis von etwa 1:10 als besonders vorteilhaft erwiesen. For use in vehicle engines, a water-to-oil ratio of about 1:10 having proven particularly advantageous. Gerade Schadstoffe wie Russ, Stickoxide und Kohlendioxid werden deutlich reduziert im Vergleich zum Betrieb mit Dieselöl allein. Just pollutants such as soot, nitrogen oxide and carbon dioxide are significantly reduced compared to operation with diesel oil alone.
  • Die Verwendung des erfindungsgemässen Gerätes zur Erzeugung einer Wasser-in-Oel Emulsion liefert beispielsweise an Verbrennungsmaschinen oder Oelbrenner eine auch unter ständig wechselnden Betriebsbedingungen im wesentlichen stabile, im Verhältnis Wasser-Oel konstante Emulsion, welche sehr stark zur Verminderung von Schadstoffausstoss beiträgt. The use of the inventive apparatus for producing a water-in-oil emulsion, for example, supplies to internal combustion engines or oil burners an even under constantly changing operating conditions substantially stable and constant in the ratio of water-oil emulsion, which greatly contributes to the reduction of pollutant emissions.
  • Die Erfindung wird nachstehend anhand eines in den Zeichnungen dargestellten Ausführungsbeispiels noch näher erläutert. The invention is explained in more detail below with reference to an illustrated in the drawings embodiment. Es zeigen: Show it:
    • Fig. 1 schematisch den Querschnitt durch ein erfindungsgemässes Gerät; Fig. 1 shows schematically the cross-section through an inventive device;
    • Fig. 2 einen Querschnitt durch eine Dosiervorrichtung; 2 shows a cross section through a metering device.
    • Fig. 3 das Anschlussschema des Gerätes zum Betreiben eines Diesel-Einspritzmotors. Fig. 3 shows the wiring diagram of the device for operating a diesel injection engine.
  • In Fig. 1 ist der Aufbau eines erfindungsgemässen Gerätes dargestellt, wobei die Pfeile jeweils die Strömungsrichtung der Emulsion resp. In Fig. 1 shows the structure of an inventive device is shown, wherein each of the arrows, respectively, the flow direction of the emulsion. von Wasser und Oel anzeigen. View of water and oil. Die Wasserleitung 10 und die Oelleitung 11 führen in die Dosiervorrichtung 1, wonach die exakt dosierten Mengen dieser Flüssigkeiten über die Auslassleitungen 10' bzw. 11' in der Sammelleitung 12 zusammengeführt werden und zur Saugseite einer Flügelradpumpe, hier einer Kreiselpumpe 2, gelangen. The water line 10 and the Oelleitung 11 lead into the metering device 1, according to which the precisely metered amounts of these liquids are combined via the outlet conduits 10 'and 11' in the manifold 12 and to the suction side of an impeller pump, in this case a centrifugal pump 2, pass. Das durch die Pumpe 2 beschleunigte Gemisch gelangt über die Zufuhrleitung 28 in die Mischkammer 3. Die Mischkammer 3 ist in eine äussere Kammer 3', in welche die Zufuhrleitung 28 tangential mündet, sowie eine innere Kammer 3" aufgeteilt. Die Trennwand der beiden Kammern 3', 3" weist kreisförmige Ausnehmungen 6 auf, welche zur Strömungsrichtung etwa parallel angeschrägt werden. The accelerated by the pump 2 mixture passes through the supply line 28 into the mixing chamber 3. The mixing chamber 3 is divided into an outer chamber 3 'into which the feed line 28 opens tangentially, and an inner chamber 3 ". The partition wall of the two chambers 3 ', 3 "has circular recesses 6 which are tapered approximately parallel to the direction of flow. Durch diese Anordnung wird eine besonders vorteilhafte Durchmischung des Wasser-Oel-Gemisches erreicht und eine Wasserin-Oel Emulsion erzeugt. By this arrangement a particularly advantageous mixing of the water-oil mixture is achieved, and generates a water-in-oil emulsion. Dadurch, dass der wegführende Teil 3"' der Mischkammer 3 sich konisch verjüngend ausgebildet ist, wird die Verwirbelung und Vermischung der Wasser- und Oel-Teilchen intensiviert. Schliesslich mündet der Gefässteil 3"', sich sprunghaft erweiternd, in eine Expansionskammer 4, bevor die Emulsion schliesslich in den Vorratsraum 5 gelangt. Characterized in that the leading away part 3 " 'of the mixing chamber 3 is located conically tapered, the turbulence and mixing of the water and oil particles is intensified. Finally opens the container part 3' ', abruptly expanding in an expansion chamber 4 before finally the emulsion passes into the reservoir. 5 Durch die tangentiale Zuführung in den Vorratsraum 5 wird erreicht, dass die Emulsion im Vorratsraum 5 ständig in Bewegung (Wirbel) bleibt. The tangential feed into the supply space 5 is achieved that the emulsion remains constantly in motion (swirl) in the storage space. 5 Um die beim ersten Füllvorgang im Gerät befindliche Luft wegzuführen, besitzt der Vorratsraum 5 an seiner höchsten Stelle eine Entlüftungsöffnung 7. Die Entnahmeöffnung bzw. -leitung 8, welche beispielsweise beim Einsatz in Dieselmotoren zur Einspritzpumpe führt, befindet sich vorzugsweise auf derselben Höhe des Vorratsraumes 5 wie dessen tangentiale Zuführleitung des Expansionskammer 4. Damit immer eine ideale Emulsion im Vorratsraum 5 zur Verfügung steht, wird im Gerät selbst ständig ein Kreislauf der Emulsion aufrechterhalten, indem der Vorratsraum 5 am unterem Ende einen als Rücklaufkanal ausgebildeten Raumteil 5", zur Flügelradpumpe 2 führend, aufweist. In order to lead away the air present in the first filling process in the machine, has the storage space 5 at its highest point a vent opening 7. The discharge port or line 8 which leads, for example when used in diesel engines to the injection pump, is preferably located at the same height of the storage space 5 as the tangential supply of the expansion chamber 4. Thus always an ideal emulsion is available in the reservoir 5, a cycle of the emulsion is maintained constantly in the device itself, by the pantry 5 a designed as a return channel space part 5 ", leading to the impeller 2 at the lower end , having.
  • Allfällige Ueberschussmengen von nicht verbrauchten Emulsionen können über die Rückführleitung 9 ebenfalls wieder in den Kreislauf zurückgespiesen werden. Any excess amounts of unused emulsions can be zurückgespiesen into the circulation through the return line 9 also. Dieser muss unbedingt auf der Saugseite der Flügelradpumpe 2 angebracht sein. This absolutely must be installed on the suction side of the impeller. 2
  • Der Aufbau der Dosiervorrichtung 1 ist aus Fig. 2 der Zeichnung naher ersichtlich. The structure of the dosing device 1 is closer shown in FIG. 2 of the drawing. Die Dosiervorrichtung 1 weist eine Pumpenkammer 14 für Wasser sowie eine entsprechend dem gewünschten Wasser-Oel Verhältnis grössere Kammer 15 für Oel auf. The metering device 1 has a pump chamber 14 for water, and a corresponding to the desired water-oil ratio larger chamber 15 for oil. In den Zuleitungen 10,11 resp. respectively in the supply lines 10,11. der Abführleitungen 10', 11' sind Rückschlagventile 13 angebracht. the discharge lines 10 ', 11', check valves 13 are mounted.
  • Die Membranwände 16,17 sind über eine feste Betätigungsstange 18 miteinander gekuppelt und werden vorzugsweise mit einem elektromagnetischen Antrieb (nicht dargestellt) verbunden, welcher die Membranen oszillierend antreibt. The membrane walls 16,17 are coupled to each other via a fixed operating rod 18, and are preferably (not shown) with an electromagnetic drive is connected, which drives the oscillating membranes. Durch die Dimensionierung der Pumpenkammern 14,15 bzw. der Membranflächen 16,17 wird dabei jeweils Wasser und Oel in einem bestimmten, konstanten Verhältnis in die Leitung 12 geführt. The dimensioning of the pump chambers 14,15, or the membrane surfaces 16,17 each raising the water and oil is conducted in a certain constant ratio into the conduit 12th Die Durchflussmenge kann dabei entweder durch die Frequenz der Membranbewegung oder durch unterschiedlichen Hub variiert werden. The flow rate can be varied either by the frequency of the diaphragm moving or different hub. Da durch einen elektromagnetischen Antrieb der Hub nicht starr ist, sondern vom Gegendruck abhängt, ist keine besondere Steuerung der Durchflussmenge durch die Dosiervorrichtung notwendig. There is by an electromagnetic drive, the stroke is not fixed but depends on the counter-pressure, no special control of the flow rate through the metering device is necessary. Bei entsprechender Dimensionierung des Hubmagneten genügt schon ein geringer Druckaufbau in der Leitung 12, wenn zB aus dem Vorratsraum 5 kein oder nur wenig Emulsion entnommen wird, damit die entsprechenden Rückschlagventile 13 geschlossen bleiben. With appropriate dimensioning of the solenoid even when, for example, is removed from the storage space 5 is little or no emulsion, so that the relevant non-return valves 13 remain closed satisfies a low pressure build up in the line 12. Wird eine grosse Menge an Emulsion benötigt, so bewirkt ein niedriger Druck in der Leitung 12 einen kleinen Gegendruck in den Kammern 14,15 und der Hubmagnet erreicht einen grossen Hub mit entsprechend grosser Durchflussmenge. If a large amount of emulsion needed, so a low pressure in the line 12 causes a small back pressure in the chambers 14,15 and the solenoid reaches a large stroke with a correspondingly large flow rate.
  • Ein ebenfalls grosser Vorteil stellt die Notlaufeigenschaft der Dosiervorrichtung dar, indem bei defektem Antrieb der Membranen 16,17 die Wasserzuleitung 10 durch das Rückschlagventil 13 dieser Leitung geschlossen wird (wenn das Ventil eine entsprechend dimensionierte Feder besitzt, die einen grösseren Druck ausübt als der Druck in der Wasserzuleitung). An equally important advantage is the emergency running of the metering device by 16.17 the water feed line 10 is closed by the check valve 13 of this line with a defective driving of the membranes (when the valve has a correspondingly dimensioned spring which exerts a greater pressure than the pressure in the water supply line). Die Oelzufuhr über die Leitung 11 erfolgt vorzugsweise mittels einer Pumpe, wodurch ein genügend grosser Druck erzielt werden kann, um beide Ventile in der Leitung 11, resp. The oil supply through the line 11 is preferably effected by means of a pump, whereby a sufficiently large pressure can be achieved to both valves in the pipe 11, resp. der Leitung 11' offen zu halten und somit das Gerät mit Oel zu versorgen. to keep the conduit 11 'is open and thus to supply the device with oil. Dadurch bleibt ein problemloser Betrieb beispielsweise eines Dieselmotors mit Dieselöl allein gewährleistet. This trouble-free operation, for example, a diesel engine with diesel oil is guaranteed alone.
  • Ein Anschlussschema des ganzen Gerätes 19 an einen Fahrzeug-Dieselmotor 26 zeigt Fig. 3. Der Wassertank 21 sollte gegenüber dem Anschluss am Gerät 19 etwas erhöht angebracht sein, während der Oeltank 20 beliebig angeordnet werden kann, da eine dazwischenliegende Förderpumpe 22 vorgesehen ist. A connection diagram of the entire device 19 to a vehicle diesel engine 26 shown in FIG. 3. The water tank 21 should be slightly attached increased compared to the connection on the device 19, while the oil tank 20 can be arranged as desired, as an intermediate feed pump 22 is provided. Die Entnahmeleitung 23 vom Vorratsraum 5 im Gerät 19 führt zur Einspritzpumpe 24. Von dort gelangt die Emulsion über die Einspritzdüsen 25 in den Brennraum des Dieselmotors 26. Die Leckageleitungen 27,27' werden mit dem Rückführanschluss 9 (Fig. 1) des Gerätes 19 gekoppelt. The extraction line 23 from the storage space 5 in the device 19 results in the injection pump 24. From there, the emulsion via the injection nozzles 25 into the combustion chamber of the diesel engine 26, the leakage lines 27,27 'are connected to the return port 9 (Fig. 1) of the device 19 coupled ,

Claims (12)

  1. A method for purely mechanically producing a water-in-oil emulsion, in which the water and the oil are united in dosed manner front separate supply containers in order to obtain a predetermined mass proportion of water/ oil, the mixture being thereafter delivered into a mixing chamber where the emulsion is formed by intimately mixing the two components and the emulsion being thereafter delivered into a storage room from where part of the emulsion is fed to a user whilst not used part of the emulsion is recycled into the mixing chamber, characterized in that the necessary dosed quantities of water and oil are supplied together and under if possible smooth acceleration tangentially and by forming a vortex movement into a mixing chamber having a funnel-shaped narrowing outlet in order to produce said emulsion and in that the emulsion produced in said mixing chamber is then fed from the mixing chamber into said storage room thereby being subjected to at least one acceleration followed by at least one expansion and is also maintained in said room in a continuous vortex movement, whilst the remaining partial quantity of the emulsion is supplied under if possible smooth acceleration and together with said mixture from the storage room back into said mixing chamber and thus into a closed cycle.
  2. A device for carrying out the method of claim 1, comprising a mixing chamber (3) connected to separate supply containers for water and oil respectively and a storage room (5) connected to said mixing chamber and having an outlet duct (8) leading to a user and further comprising a dosing unit (1) for obtaining a predetermined mass proportion of water/oil and a connecting duct (12,28) between the dosing unit (1) and said mixing chamber (3), through which the dosed quantities of water and oil are supplied into the mixing chamber (3), characterized by a mixing chamber (3) having at least one tangential inlet and an axial, funnel-shaped narrowing outlet and by a low-pressure pump (2) mounted in said connecting duct (12,28), whereby the connection between the outlet of the mixing chamber (3) and said storage room (5) forms an expansion chamber (4) leading with its narrowing outlet tangentially into the storage room (5), and wherein the latter presents a room section (5") leading to the suction side of the low-pressure pump (2) and an outlet (8) leading to the user of the emulsion.
  3. A device according to claim 2, characterized in that said mixing chamber (3) and said storage room (5) are of substantially rotation-symmetrical shape.
  4. A device according to any of claims 2 or 3, characterized in that the dosing unit (1) is provided with at least two separate chambers (14,15) arranged directly one adjacent to the other and of different size corresponding to the desired water/oil ratio, whereby the two chambers (14,15) are separated by a wall in the form of a membrane (16), the greater one (15) of said chambers being equipped with a second membrane (17) having a greater surface corresponding to the desired water/oil ratio and being coupled to said first membrane (16) by means of a rigid bar and connected to driving means, and in that each chamber (14;15) is provided with both a feeding duct and an evacuation duct (10;11) each equipped with a check valve (13).
  5. A device according to claim 4, characterized in that said driving means of the dosing unit (1) comprise an electro-lifting-magnet.
  6. A device according to any of claims 2 to 5, characterized in that the electrical low-pressure pump (2) is provided with preferably curved feeding blades.
  7. A device according to any of claims 2 to 6, characterized in that the mixing chamber (3) comprises in a first section a volume of hemispherical shape (3',3") with at least one tangential inlet and in a second section a volume (3"') of rotation-symmetrical shape narrowing funnel-shaped in axial direction and finally discharging into the expansion chamber (4).
  8. A device according to claim 7, characterized in that said hemispherical volume is divided into two chambers (3' and 3" resp.), whereby the separation wall of the two chambers is formed as hemispherical shell provided with throughpassages (6) and wherein only the inner chamber (3") leads into said funnel-shaped volume (3"').
  9. A device according to any of claims 2 to 8, characterized in that the connecting duct between the mixing chamber (3) and the storage room (5) comprises at least one expansion chamber (4) into which a nozzle is discharging.
  10. A device according to any of claims 2 to 9, characterized in that the storage room (5) has an upper room section (5') of hemispherical shape provided with a tangential inlet, said room section presenting in the inlet plane an outlet opening (8) and optionally in the zenith of the hemisphere a venting opening (7), and a funnel-shaped narrowing lower room section (5"), discharging finally into the suction side of the low-pressure pump (2).
  11. A device according to any of claims 2 to 10, characterized by a collecting pipe (12) from the dosing unit (1) uniting the oil duct and water duct (10';11') respectively, a feeding duct (5"') of the storage room and optionally at least one outer return duct (9) lead into the suction area of said low-pressure pump (2).
  12. Use of devices according to any of claims 2 to 11 for producing a water-in-oil emulsion for operating Diesel engines in motor vehicles or stationary plants.
EP19870114400 1986-10-08 1987-10-02 Method and device for producing a water-in-oil emulsion Expired - Lifetime EP0263443B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CH401386 1986-10-08
CH4013/86 1986-10-08
CH2664/87 1987-07-13
CH2664/87A CH673235A5 (en) 1987-07-13 1987-07-13 Prepn. of water-in-oil emulsion

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT87114400T AT76328T (en) 1986-10-08 1987-10-02 A method and apparatus for producing a water-in-oil emulsion.

Publications (3)

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EP0263443A2 EP0263443A2 (en) 1988-04-13
EP0263443A3 EP0263443A3 (en) 1989-05-10
EP0263443B1 true EP0263443B1 (en) 1992-05-20

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EP19870114400 Expired - Lifetime EP0263443B1 (en) 1986-10-08 1987-10-02 Method and device for producing a water-in-oil emulsion

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EP (1) EP0263443B1 (en)
CN (1) CN1017872B (en)
DE (1) DE3779242D1 (en)

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Also Published As

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US4938606A (en) 1990-07-03
CN1017872B (en) 1992-08-19
EP0263443A2 (en) 1988-04-13
DE3779242D1 (en) 1992-06-25
EP0263443A3 (en) 1989-05-10
CN87106928A (en) 1988-12-21

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