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EP0684069A1 - Injector and method for suction or mixing of fluids - Google Patents

Injector and method for suction or mixing of fluids Download PDF

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Publication number
EP0684069A1
EP0684069A1 EP95107555A EP95107555A EP0684069A1 EP 0684069 A1 EP0684069 A1 EP 0684069A1 EP 95107555 A EP95107555 A EP 95107555A EP 95107555 A EP95107555 A EP 95107555A EP 0684069 A1 EP0684069 A1 EP 0684069A1
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EP
European Patent Office
Prior art keywords
tubular
fluids
injector
fluid
mixing
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.)
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Application number
EP95107555A
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German (de)
French (fr)
Inventor
Sebastian Dr. Ing. Muschelknautz
Richard Dipl. Ing. Schneider
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Linde GmbH
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Linde GmbH
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Publication date
Application filed by Linde GmbH filed Critical Linde GmbH
Publication of EP0684069A1 publication Critical patent/EP0684069A1/en
Withdrawn legal-status Critical Current

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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
    • B01F25/30—Injector mixers
    • B01F25/31—Injector mixers in conduits or tubes through which the main component flows
    • B01F25/314—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced at the circumference of the conduit

Definitions

  • the invention relates to an injector for mixing two fluids and / or drawing in a fluid through a second volume within a tubular volume with an inlet and outlet opening and a method therefor.
  • two fluids namely two gaseous, two liquid or one gaseous and one liquid phase
  • injectors ejectors or jet nozzles
  • Such a known method is implemented, for example, in injector nozzles on torch burners in order to burn gas produced in cracking systems, in particular in an emergency, for example in the event of a compressor failure, in order to thereby avoid the shutdown of the entire system.
  • a vapor / air mixture is introduced into the unburned gas by means of the injector, directly in front of the combustion zone, which is intended to prevent the flame from sooting.
  • air has mostly been drawn in by suction via a steam flow, which follows the nozzle contour of the injector like a film (Coanda effect).
  • the disadvantage here is that the steam flow loses impulse due to wall friction.
  • the narrow gaps for the outlet of the superheated medium-pressure steam at the inlet opening of the injector nozzle make the construction susceptible to clogging and incorrect setting of the gap due to thermal distortion of the nozzle.
  • the object of the present invention is therefore to provide an improved injector together with a method for mixing two fluids and / or drawing in a fluid through a second within a tubular volume with an inlet and outlet opening, thereby avoiding the above-mentioned disadvantages and with the smallest possible mixing distances good mixing and / or a high intake quantity is achieved.
  • the individual jets according to the invention which serve as driving jets for the sucked-in second fluid, have a larger surface area than the previous Coanda wall flow, so that the suction capacity is increased. Since, due to reduced wall friction, the momentum transfer within the individual jets to the second fluid is also improved, the distance necessary for homogeneous mixing is reduced. In addition, the reduced pulse transmission to the injector walls and the downstream, i.e. the individual nozzles directed into the interior of the tubular limited volume reduced the generation of noise.
  • a suitable driving jet diameter can be used to eliminate the risk of clogging due to sucked-in dirt particles.
  • nozzles are, for example, Laval or Venturi nozzles.
  • a suitable nozzle shape is selected depending on the desired flow profile, velocity, throughput and pressure curve.
  • the shape of the nozzle can of course also be freely designed and adapted accordingly.
  • tubular limited volume is divided into several sections, a cylindrical mixing section being provided in the mixing area of the fluids, followed by a diffuser section widening in the shape of a truncated cone downstream.
  • This shape has proven particularly useful in the suction of ambient air by means of steam jets using the injector according to the invention.
  • Both fluids mix on a relatively short cylindrical mixing section, which is usually preceded by a slightly tapered section for suction support (pressure drop).
  • This mixing section is followed by a section which is enlarged in cross section and which advantageously widens in the shape of a truncated cone.
  • the surface design of the attachment can increase the suction quantity of the one fluid and further reduce the noise pollution.
  • Existing (injector) nozzles can also be converted using this simple measure.
  • the injector according to the invention which delivers the fluid mixture from an outlet opening, can be used particularly well for the entry of a steam / air mixture into the unburned gas in torch burners.
  • the method according to the invention is suitable for the homogeneous mixing of two gaseous and / or liquid fluids. It is also in particular provided for the entry of a steam / air mixture into the unburned gas in torch burners.
  • the injector according to the invention is used to add ambient air as primary air for the combustion of gas into the interior of a torch just before the combustion zone.
  • the primary air is added by sucking in ambient air using steam jets, which according to the invention are injected into the interior of the injector in the form of a plurality of individual jets 9 in the direction of flow.
  • the high pressure steam has a temperature of about 250 ° C. It emerges from about 8 individual nozzles with a diameter of 4 mm.
  • the soot-free combustion of 300 t / h of gas can be achieved using 160 t / h of steam as a blowing agent.
  • the number of individual nozzles can generally be between about 4 to about 32.
  • the individual jets 9 are additionally directed radially in the direction of the axis 5 of the injector volume.
  • the flow of the sucked-in air can be positively influenced and the noise development reduced by a suitable surface design of the attachment 8.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Nozzles (AREA)
  • Gas Burners (AREA)

Abstract

An injector is used to mix 2 fluids and/or suck a fluid through a 2nd one inside a tubular restricted vol. with inlet and outlet. Near the inlet opening (1) on the edge (2) of the tubular vol. (3) there are single nozzles (4) arranged downstream for one of the 2 fluids. Also claimed is a process for the above purpose where one of the fluids is injected in the flow direction in the form of single jets into the tubular restricted vol. (3) contg. the other fluid.

Description

Die Erfindung betrifft einen Injektor zur Vermischung zweier Fluide und/oder Ansaugung eines Fluids durch ein zweites innerhalb eines rohrförmig begrenzten Volumens mit einer Ein- und Austrittsöffnung sowie ein Verfahren hierzu.The invention relates to an injector for mixing two fluids and / or drawing in a fluid through a second volume within a tubular volume with an inlet and outlet opening and a method therefor.

Bei derartigen Ansaug- und/oder Mischverfahren werden zwei Fluide, nämlich zwei gasförmige, zwei flüssige oder eine gasförmige und eine flüssige Phase, miteinander gemischt, wobei eine der beiden Phasen aufgrund höherer Strömungsgeschwindigkeit und -impulses die andere Phase ansaugt. Die entsprechenden Vorrichtungen werden als Injektoren, Ejektoren oder Strahldüsen bezeichnet.In such suction and / or mixing processes, two fluids, namely two gaseous, two liquid or one gaseous and one liquid phase, are mixed with one another, one of the two phases sucking in the other phase due to the higher flow velocity and pulse. The corresponding devices are referred to as injectors, ejectors or jet nozzles.

Ein solches bekanntes Verfahren wird beispielsweise in Injektordüsen an Fackelbrennern realisiert, um bei Crackanlagen, insbesondere im Notfall bspw. beim Ausfall eines Verdichters, anfallendes Gas zu verbrennen, um dadurch die Stillegung der gesamten Anlage zu vermeiden. In das unverbrannte Gas wird mittels des Injektors unmittelbar vor der Verbrennungszone ein Dampf/Luft-Gemisch eingebracht, welches ein Rußen der Flamme verhindern soll. Der Lufteintrag erfolgt bisher meist durch das Ansaugen über eine Dampfströmung, welche filmartig der Düsenkontur des Injektors folgt (Coanda-Effekt). Nachteilig wirkt sich dabei aus, daß durch Wandreibung Treibimpuls der Dampfströmung verlorengeht. Die schmalen Spalte für den Austritt des überhitzten Mitteldruckdampfes an der Eintrittsöffnung der Injektordüse machen die Konstruktion anfällig für Verstopfung und eine falsche Einstellung des Spaltes durch thermischen Verzug der Düse.Such a known method is implemented, for example, in injector nozzles on torch burners in order to burn gas produced in cracking systems, in particular in an emergency, for example in the event of a compressor failure, in order to thereby avoid the shutdown of the entire system. A vapor / air mixture is introduced into the unburned gas by means of the injector, directly in front of the combustion zone, which is intended to prevent the flame from sooting. Up to now, air has mostly been drawn in by suction via a steam flow, which follows the nozzle contour of the injector like a film (Coanda effect). The disadvantage here is that the steam flow loses impulse due to wall friction. The narrow gaps for the outlet of the superheated medium-pressure steam at the inlet opening of the injector nozzle make the construction susceptible to clogging and incorrect setting of the gap due to thermal distortion of the nozzle.

Aufgabe der vorliegenden Erfindung ist deshalb, einen verbesserten Injektor zusammen mit einem Verfahren zur Vermischung zweier Fluide und/oder Ansaugung eines Fluids durch ein zweites innerhalb eines rohrförmig begrenzten Volumens mit einer Ein- und Austrittsöffnung anzugeben, wodurch obengenannte Nachteile vermieden werden und auf möglichst geringen Mischstrecken eine gute Durchmischung und/oder eine hohe Ansaugmenge erzielt wird.The object of the present invention is therefore to provide an improved injector together with a method for mixing two fluids and / or drawing in a fluid through a second within a tubular volume with an inlet and outlet opening, thereby avoiding the above-mentioned disadvantages and with the smallest possible mixing distances good mixing and / or a high intake quantity is achieved.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß bei einem Injektor in der Nähe der Eintrittsöffnung am Rand des rohrförmig begrenzten Volumens mehrere stromabwärts gerichtete Einzeldüsen für eines der beiden Fluide angeordnet sind. Bei einem erfindungsgemäßen Verfahren wird eines der beiden Fluide in Form mehrerer Einzelstrahlen in Strömungsrichtung in das das andere Fluid enthaltende rohrförmig begrenzte Volumen eingedüst.This object is achieved in that, in the case of an injector, several downstream nozzles for one of the two fluids are arranged near the inlet opening at the edge of the tubular volume. In a method according to the invention, one of the two fluids is injected in the form of a plurality of individual jets in the direction of flow into the tubular volume containing the other fluid.

Die erfindungsgemäßen Einzelstrahlen, die als Treibstrahlen für das angesaugte zweite Fluid dienen, besitzen eine größere Oberfläche als die bisherige Coanda-Wandströmung, so daß das Ansaugvermögen erhöht ist. Da aufgrund verminderter Wandreibung außerdem der Impulsübertrag innerhalb der Einzelstrahlen auf das zweite Fluid verbessert ist, wird die zur homogenen Mischung notwendige Strecke verringert. Zudem ist durch den verringerten Impulsübertrag an die Injektorwände und durch die stromabwärts, d.h. ins Innere des rohrförmig begrenzten Volumens gerichteten Einzeldüsen die Geräuscherzeugung herabgesetzt. Eine Verstopfungsgefahr durch angesaugte Schmutzpartikel kann durch geeignete Treibstrahldurchmesser ausgeschaltet werden.The individual jets according to the invention, which serve as driving jets for the sucked-in second fluid, have a larger surface area than the previous Coanda wall flow, so that the suction capacity is increased. Since, due to reduced wall friction, the momentum transfer within the individual jets to the second fluid is also improved, the distance necessary for homogeneous mixing is reduced. In addition, the reduced pulse transmission to the injector walls and the downstream, i.e. the individual nozzles directed into the interior of the tubular limited volume reduced the generation of noise. A suitable driving jet diameter can be used to eliminate the risk of clogging due to sucked-in dirt particles.

Vorteilhaft ist eine Ausrichtung der Einzeldüsen stromabwärts und radial auf die Achse des rohrförmig begrenzten Volumens. Dadurch werden die aus den Einzeldüsen austretenden Fluidstrahlen von den angrenzenden Wänden weggerichtet, wodurch zusätzlich einem Anhaften der Strömung an den Injektorwänden entgegengewirkt wird.It is advantageous to align the individual nozzles downstream and radially with respect to the axis of the tubular volume. As a result, the fluid jets emerging from the individual nozzles are directed away from the adjacent walls, which additionally counteracts any adherence of the flow to the injector walls.

Es besteht die Möglichkeit, das rohrförmig begrenzte Volumen als Düse zu gestalten. Bekannte Düsen sind beispielsweise Laval- oder Venturidüsen. Je nach gewünschtem Strömungsprofil, -geschwindigkeit, Durchsatzmenge und Druckverlauf wird eine geeignete Düsenform gewählt. Die Düsenform kann selbstverständlich auch frei konstruiert und entsprechend angepaßt werden.It is possible to design the limited volume as a nozzle. Known nozzles are, for example, Laval or Venturi nozzles. A suitable nozzle shape is selected depending on the desired flow profile, velocity, throughput and pressure curve. The shape of the nozzle can of course also be freely designed and adapted accordingly.

Vorteilhaft ist, wenn das rohrförmig begrenzte Volumen in mehrere Abschnitte unterteilt ist, wobei im Mischbereich der Fluide eine zylindrische Mischstrecke vorgesehen ist, an die sich stromabwärts eine kegelstumpfförmig erweiternde Diffusorstrecke anschließt. Diese Form bewährt sich insbesondere bei der Ansaugung von Umgebungsluft durch Dampfstrahlen mittels des erfindungsgemäßen Injektors. Beide Fluide mischen sich auf einer relativ kurzen zylindrischen Mischstrecke, der in der Regel ein leicht konusförmig zulaufender Abschnitt zur Ansaugunterstützung (Druckabfall) vorausgeht. Dieser Mischstrecke schließt sich ein im Querschnitt erweiterter Abschnitt an, der mit Vorteil sich kegelstumpfförmig verbreitert.It is advantageous if the tubular limited volume is divided into several sections, a cylindrical mixing section being provided in the mixing area of the fluids, followed by a diffuser section widening in the shape of a truncated cone downstream. This shape has proven particularly useful in the suction of ambient air by means of steam jets using the injector according to the invention. Both fluids mix on a relatively short cylindrical mixing section, which is usually preceded by a slightly tapered section for suction support (pressure drop). This mixing section is followed by a section which is enlarged in cross section and which advantageously widens in the shape of a truncated cone.

Wird auf der Eintrittsöffnung des rohrförmig begrenzten Volumens ein die Einzeldüsen enthaltender Aufsatz angebracht, kann durch dessen Oberflächengestaltung die Ansaugmenge des einen Fluids erhöht und die Lärmbelastung noch weiter gesenkt werden. Außerdem können durch diese einfache Maßnahme bereits bestehende (Injektor)Düsen umgerüstet werden.If an attachment containing the individual nozzles is attached to the inlet opening of the tubularly limited volume, the surface design of the attachment can increase the suction quantity of the one fluid and further reduce the noise pollution. Existing (injector) nozzles can also be converted using this simple measure.

Der erfindungsgemäße Injektor, der die Fluidmischung aus einer Austrittsöffnung abgibt, läßt sich für den Eintrag eines Dampf/Luft-Gemisches in das unverbrannte Gas in Fackelbrennern besonders gut verwenden.The injector according to the invention, which delivers the fluid mixture from an outlet opening, can be used particularly well for the entry of a steam / air mixture into the unburned gas in torch burners.

Das erfindungsgemäße Verfahren eignet sich zur homogenen Mischung zweier gasförmiger und/oder flüssiger Fluide. Ebenfalls ist es insbesondere zum Eintrag eines Dampf/Luft-Gemisches in das unverbrannte Gas in Fackelbrennern vorgesehen.The method according to the invention is suitable for the homogeneous mixing of two gaseous and / or liquid fluids. It is also in particular provided for the entry of a steam / air mixture into the unburned gas in torch burners.

Im folgenden soll anhand der einzigen Zeichnung der erfindungsgemäße Injektor und das von ihm bewirkte Verfahren ausführlich erläutert werden.The injector according to the invention and the method effected by it are to be explained in detail below with reference to the single drawing.

In der Zeichnung sind schematisch zwei mögliche Varianten A und B eines erfindungsgemäßen Injektors dargestellt, wobei die beiden Varianten A und B durch die Mittellinie (Rotationsachse) getrennt gezeichnet sind.

  • Variante A (linker Teil der Zeichnung) stellt einen möglichen erfindungsgemäßen Injektor dar mit einer Zuführungsleitung 10 für ein erstes Fluid, beispielsweise Wasserdampf, einem Ringraum 11 zur Verteilung dieses Fluids im Inneren des Injektors, von dem eine Zuführungsleitung 12 zur Vorkammer 13 ausgeht. Diese Vorkammer 13 ist bereits im Aufsatz 8 untergebracht. Dieser Aufsatz 8 enthält die Einzeldüsen 4. Vor Betrieb des Injektors ist dessen Eintrittsöffnung 1 zum rohrförmig begrenzten Volumen 3 von dem zweiten Fluid, beispielsweise Luft, (statisch) umgeben. Bei Betrieb des Injektors werden mehrere Einzelstrahlen 9 aus dem ersten Fluid erzeugt, die das umgebende zweite Fluid ansaugen und zur Mischstrecke 6 transportieren. Von dort gelangt die Mischung in eine Diffusorstrecke 7, und schließlich tritt sie durch die Austrittsöffnung des Injektors wieder aus.
  • Variante B (rechter Teil der Zeichnung) ist analog zur Variante A rotationssymmetrisch zu lesen. Gleiche Komponenten tragen die gleichen Bezugsziffern. Der Aufsatz 8 ist hier deutlich niedriger, was insbesondere bei geringen Durchmessern der Einzelstrahlen Vorteile bringt. Dann werden nämlich entsprechend mehr Einzeldüsen 4 im Aufsatz 8 angeordnet, wodurch eine größere Ansaugoberfläche entsteht als bei wenigen Einzelstrahlen großen Durchmessers bei gleicher Gesamtmenge des Treibmittels wie Dampf. Entsprechend kürzer fällt die zum Ansaugen erforderliche Strecke aus.
In the drawing, two possible variants A and B of an injector according to the invention are shown schematically, the two variants A and B being drawn separately by the center line (axis of rotation).
  • Variant A (left part of the drawing) represents a possible injector according to the invention with a feed line 10 for a first fluid, for example water vapor, an annular space 11 for distributing this fluid inside the injector, from which a feed line 12 to the pre-chamber 13 extends. This antechamber 13 is already housed in the attachment 8. This attachment 8 contains the individual nozzles 4. Before the injector is operated, its inlet opening 1 to the tubular volume 3 is (statically) surrounded by the second fluid, for example air. When the injector is in operation, several individual jets 9 are generated from the first fluid, which suck in the surrounding second fluid and transport it to the mixing section 6. From there, the mixture reaches a diffuser section 7, and finally it exits through the outlet opening of the injector.
  • Variant B (right part of the drawing) can be read in a rotationally symmetrical manner, analogous to variant A. The same components have the same reference numbers. The attachment 8 is significantly lower here, which has advantages in particular in the case of small diameters of the individual beams. Then, accordingly, more individual nozzles 4 are arranged in the attachment 8, which creates a larger suction surface than with a few individual jets of large diameter with the same total amount of propellant as steam. The distance required for suction is correspondingly shorter.

Mit dem erfindungsgemäßen Injektor wird in diesem Ausführungsbeispiel Umgebungsluft als Primärluft zur Verbrennung von Gas in das Innere einer Fackel kurz vor der Verbrennungszone zugegeben. Bei Zugabe von 20-30% Primärluft erfolgt die Verbrennung mit der aus der Umgebung stammenden restlichen Sekundärluft rußfrei. Die Primärluftzugabe erfolgt durch Ansaugung von Umgebungsluft mittels Dampfstrahlen, die erfindungsgemäß in Form mehrerer Einzelstrahlen 9 in Strömungsrichtung in das Innere des Injektors eingedüst werden. Der Hochdruckdampf weist eine Temperatur von etwa 250 ° C auf. Er tritt aus etwa 8 Einzeldüsen mit einem Durchmesser von 4 mm aus. Mit dieser Konfiguration gelingt die rußfreie Verbrennung von 300 t/h Gas mittels 160 t/h Wasserdampf als Treibmittel. Die Anzahl der Einzeldüsen kann im allgemeinen zwischen etwa 4 bis etwa 32 betragen.In this exemplary embodiment, the injector according to the invention is used to add ambient air as primary air for the combustion of gas into the interior of a torch just before the combustion zone. When 20-30% primary air is added, the combustion takes place with the remaining secondary air from the environment soot-free. The primary air is added by sucking in ambient air using steam jets, which according to the invention are injected into the interior of the injector in the form of a plurality of individual jets 9 in the direction of flow. The high pressure steam has a temperature of about 250 ° C. It emerges from about 8 individual nozzles with a diameter of 4 mm. With this configuration, the soot-free combustion of 300 t / h of gas can be achieved using 160 t / h of steam as a blowing agent. The number of individual nozzles can generally be between about 4 to about 32.

Um ein Anhaften der Strömung an die Wand zu vermeiden, werden die Einzelstrahlen 9 zusätzlich radial in Richtung auf die Achse 5 des Injektorvolumens gerichtet. Durch geeignete Oberflächengestaltung des Aufsatzes 8 läßt sich die Strömung der angesaugten Luft positiv beeinflussen und die Geräuschentwicklung reduzieren.In order to avoid the flow adhering to the wall, the individual jets 9 are additionally directed radially in the direction of the axis 5 of the injector volume. The flow of the sucked-in air can be positively influenced and the noise development reduced by a suitable surface design of the attachment 8.

Claims (9)

1. Injektor zur Vermischung zweier Fluide und/oder Ansaugung eines Fluides durch ein zweites innerhalb eines rohrförmig begrenzten Volumens mit einer Ein- und Austrittsöffnung, dadurch gekennzeichnet, daß in der Nähe der Eintrittsöffnung (1) am Rand (2) des rohrförmig begrenzten Volumens (3) mehrere stromabwärts gerichtete Einzeldüsen (4) für eines der beiden Fluide angeordnet sind.1. injector for mixing two fluids and / or suction of a fluid through a second within a tubular volume with an inlet and outlet opening, characterized in that in the vicinity of the inlet opening (1) at the edge (2) of the tubular limited volume ( 3) a plurality of downstream individual nozzles (4) for one of the two fluids are arranged. 2. Injektor nach Anspruch 1, dadurch gekennzeichnet, daß die Einzeldüsen (4) radial auf die Achse (5) des rohrförmig begrenzten Volumens (3) ausgerichtet sind.2. Injector according to claim 1, characterized in that the individual nozzles (4) are aligned radially on the axis (5) of the tubular limited volume (3). 3. Injektor nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß das rohrförmig begrenzte Volumen (3) als Düse gestaltet ist.3. Injector according to one of claims 1 or 2, characterized in that the tubular limited volume (3) is designed as a nozzle. 4. Injektor nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß das rohrförmig begrenzte Volumen (3) in mehrere Abschnitte unterteilt ist, wobei im Mischbereich der Fluide eine zylindrische Mischstrecke (6) vorgesehen ist, an die sich stromabwärts eine kegelstumpfförmig erweiternde Diffusorstrecke (7) anschließt.4. Injector according to one of claims 1 to 3, characterized in that the tubular limited volume (3) is divided into several sections, a cylindrical mixing section (6) being provided in the mixing area of the fluids, to which a frustoconically widening diffuser section extends downstream (7) connects. 5. Injektor nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß auf der Eintrittsöffnung (1) des rohrförmig begrenzten Volumens (3) ein die Einzeldüsen (4) enthaltender Aufsatz (8) angebracht ist.5. Injector according to one of claims 1 to 4, characterized in that an attachment (8) containing the individual nozzles (4) is attached to the inlet opening (1) of the tubular limited volume (3). 6. Verfahren zur Vermischung zweier Fluide und/oder Ansaugung eines Fluides durch ein zweites in einer Strömung innerhalb eines rohrförmig begrenzten Volumens, dadurch gekennzeichnet, daß eines der beiden Fluide in Form mehrerer Einzelstrahlen (9) in Strömungsrichtung in das das andere Fluid enthaltende rohrförmig begrenzte Volumen (3) eingedüst wird.6. A method for mixing two fluids and / or suction of a fluid through a second in a flow within a tubular limited volume, characterized in that one of the two fluids in the form of several individual jets (9) in the flow direction in the tubular containing the other fluid limited Volume (3) is injected. 7. Verfahren nach Anspruch 6, dadurch gekennzeichnet, daß die Einzelstrahlen (9) in radialer Richtung auf die Achse (5) des rohrförmig begrenzten Volumens (3) in dasselbige eingedüst werden.7. The method according to claim 6, characterized in that the individual jets (9) in the radial direction on the axis (5) of the tubular volume (3) are injected into the same. 8. Anwendung eines Injektors nach einem der Ansprüche 1 bis 5 für den Eintrag eines Dampf/Luft-Gemisches in das unverbrannte Gas in Fackelbrennern.8. Use of an injector according to one of claims 1 to 5 for the introduction of a steam / air mixture into the unburned gas in torch burners. 9. Anwendung eines Verfahrens nach einem der Ansprüche 6 bis 7 für den Eintrag eines Dampf/Luft-Gemisches in das unverbrannte Gas in Fackelbrennern.9. Application of a method according to one of claims 6 to 7 for the introduction of a steam / air mixture into the unburned gas in torch burners.
EP95107555A 1994-05-26 1995-05-17 Injector and method for suction or mixing of fluids Withdrawn EP0684069A1 (en)

Applications Claiming Priority (2)

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DE4418434A DE4418434C2 (en) 1994-05-26 1994-05-26 Injector and method for aspirating or mixing fluids
DE4418434 1994-05-26

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EP0684069A1 true EP0684069A1 (en) 1995-11-29

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US20210000322A1 (en) * 2018-02-13 2021-01-07 Lg Electronics Inc. Dishwasher

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DE19806315C2 (en) * 1998-02-06 2000-05-25 Horst Gatzke Driving and mixing nozzle
DE102021203755A1 (en) 2021-04-15 2022-10-20 Volkswagen Aktiengesellschaft Jet pump, in particular jet pump for a fuel cell application
DE102022209707A1 (en) * 2022-09-15 2024-03-21 Volkswagen Aktiengesellschaft Nozzle arrangement with integrated guidance of the nozzle needle

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DE4418434C2 (en) 1996-03-21

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