EP2548633B1 - Injector - Google Patents

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Publication number
EP2548633B1
EP2548633B1 EP11174645.9A EP11174645A EP2548633B1 EP 2548633 B1 EP2548633 B1 EP 2548633B1 EP 11174645 A EP11174645 A EP 11174645A EP 2548633 B1 EP2548633 B1 EP 2548633B1
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EP
European Patent Office
Prior art keywords
liquid
channel
nozzle
inlet
connecting channel
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EP11174645.9A
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German (de)
French (fr)
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EP2548633A1 (en
Inventor
Bruno Podzus
Martin Antonius Maria Verdonk
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Individual
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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
    • B01F23/235—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids for making foam
    • 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
    • B01F25/311—Injector mixers in conduits or tubes through which the main component flows for mixing more than two components; Devices specially adapted for generating foam
    • B01F25/3111—Devices specially adapted for generating foam, e.g. air foam
    • B01F25/31114—Devices specially adapted for generating foam, e.g. air foam with means for introducing an additional component, e.g. in predetermined proportion or in the main component
    • 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
    • B01F25/312—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof
    • B01F25/3124—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof characterised by the place of introduction of the main flow
    • B01F25/31243—Eductor or eductor-type venturi, i.e. the main flow being injected through the venturi with high speed in the form of a jet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
    • B01F2101/24—Mixing of ingredients for cleaning compositions

Definitions

  • the invention relates to an injector, namely a device for processing a mixture, in particular a foam-like cleaning mixture.
  • the object of the invention is to provide a device for preparing a mixture, in particular a foam-like cleaning mixture, which is intended to overcome the disadvantages of the cited prior art.
  • the object of the invention is achieved by a device for processing a mixture according to claim 1.
  • the measures of the invention result in that with the proposed device for preparing a mixture, in particular a foam-like cleaning mixture easily enrichment values of the chemical substance of more than 5%, are made possible with the choice of suitable conditions to over 30%.
  • the liquid inlet communicates with the liquid nozzle by means of the liquid channel and in which the liquid channel is formed as a taper of the liquid inlet substantially concentric therewith, a mixing space in which Liquid nozzle terminates substantially as the end of the liquid passage, a center inlet, which ends substantially perpendicular to the direction of the liquid nozzle in the mixing space, a flow space, a connecting channel which connects the mixing space with the flow space and a compressed gas inlet, which is in communication with compressed air, and a Druckgasdüse, which ends in the flow space and which can be acted upon by the compressed air of the compressed gas inlet, it seems to have considerable design advantages, if the compressed gas nozzle substantially parallel to verbi tion channel is directed in the flow space.
  • the device has a further central inlet, which ends substantially perpendicular to the connecting channel and the compressed gas nozzle in the flow space and can be acted upon by a further agent.
  • the device can also be operated without, or in addition to, applying a chemical agent to the first central inlet, if the alternative or additional substance is not intended to be treated as a cleaning foam. If you give it air, a pre-dosed cleaning foam can be prepared.
  • the liquid channel has a further, substantially concentric taper, since then the holes can be drilled successively.
  • the mixing space is essentially cylindrical and concentric with the liquid channel.
  • the connection of the connection channel with the mixing chamber will advantageously have a substantially concentric taper.
  • the liquid nozzle protrudes well over 50%, preferably about 70% in the mixing chamber.
  • the nozzle ends far behind the center inlet.
  • the distance between the liquid nozzle and the connecting channel is 4.0 to 8.0 mm, preferably 5.5 to 6.5 mm.
  • the liquid channel has a front part - namely the actual liquid nozzle - which as a bore of 1.0 to 2.5 mm, for a water pressure of 100 to 200 bar, preferably from 1.2 to 1.6 mm, for a water pressure of 15 to 60 bar preferably 1.7 to 2.1 mm and the connecting channel is designed as a bore of 3.0 to 4.0 mm, preferably of about 3.5 mm.
  • the liquid channel should have a length of 12 to 20 mm, preferably of about 15 mm and the length of the thinnest hole 7 to 11 mm, preferably of about 9 mm.
  • FIG. 1 to 3 illustrated apparatus for preparing a mixture, in particular a foam-like cleaning mixture has a liquid inlet 4, a liquid channel 6 and a liquid nozzle 8.
  • the liquid inlet 4 communicates with the liquid nozzle 8 by means of the liquid channel 6.
  • the liquid channel 6 is formed as a taper 10 of the liquid inlet 4 is substantially concentric therewith.
  • the liquid nozzle 8 ends as the end of the liquid channel 6 in a mixing space 12 in which a center inlet 14 ends perpendicular to the direction of the liquid nozzle 8.
  • the device has a flow space 16, which is connected by means of a connecting channel 18 with the mixing chamber 12.
  • a compressed gas nozzle 22 which is brought by means of a compressed gas inlet 20 with a pressurized gas, in particular with compressed air in combination.
  • the compressed gas nozzle 22 is directed parallel to the connecting channel 18 in the flow space 16.
  • the liquid channel 6 has a further, essentially concentric narrowing 26.
  • the mixing chamber 12 is cylindrical and concentric with the liquid channel 6.
  • the connection of the connecting channel 18 with the mixing chamber 12 has a concentric taper 28.
  • the front part of the liquid nozzle 8 is formed as a bore of 1.8 with a length of 9 mm.
  • the connecting channel 18 is formed as a bore of 3.5 mm.
  • the distance between the liquid nozzle 8 and the connecting channel 18 is 5.82 mm in the present, advantageous and tested embodiment.
  • another center inlet is formed. This is perpendicular to the connecting channel 18 and the compressed gas nozzle 22, ends in the flow space and can be acted upon by a further agent.
  • the injector is made by welding of two parts, which in the following "female part” according to the FIGS. 4 to 6 and “male part” according to the FIGS. 7 to 9 to be named.
  • female part according to the FIGS. 4 to 6
  • male part according to the FIGS. 7 to 9 to be named.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Nozzles (AREA)

Description

Technisches GebietTechnical area

Die Erfindung betrifft einen Injektor, nämlich eine Vorrichtung zum Aufbereiten eines Gemisches, insbesondere eines schaumartigen Reinigungsgemisches.The invention relates to an injector, namely a device for processing a mixture, in particular a foam-like cleaning mixture.

Stand der TechnikState of the art

Beim Erzeugen eines Reinigungsschaumes aus Wasser und einer chemischen Substanz mittels Druckluft oder Druckgas tritt das Problem auf, dass - ohne eine übermässige Erhöhung der Druckluft üblicherweise nur ca. 3% (bei Hochdruck) bzw. max. 8% (bei Niederdruck) der chemischen Substanz im Reinigungsschaum angereichert werden kann. Andererseits hat eine übermässige Erhöhung der Druckluft Flattereigenschaften und damit unterschiedliche Anreicherungswerte der chemischen Substanz zur Folge.When creating a cleaning foam of water and a chemical substance by means of compressed air or compressed gas, the problem arises that - without an excessive increase in compressed air usually only about 3% (at high pressure) or max. 8% (at low pressure) of the chemical substance in the cleaning foam can be enriched. On the other hand, an excessive increase in the compressed air has flutter characteristics and thus different enrichment values of the chemical substance.

Aus der WO 2005/028132 A1 ist ein Injektor bekannt, bei dem der zuvor genannte, unvorteilhafte Weg mit einem Druck von über 30 bar, insbesondere von 60 bis 80 bar gegangen werden soll.From the WO 2005/028132 A1 an injector is known in which the aforementioned unfavorable way with a pressure of about 30 bar, in particular from 60 to 80 bar should be gone.

In der US 3 547 409 A wird ein Injektor gemäß dem Oberbegriff des Anspruchs 1 vorgeschlagen. In der US 4 505 431 ist ein anderer Injektor offenbart.In the US 3,547,409 A an injector according to the preamble of claim 1 is proposed. In the US Pat. No. 4,505,431 another injector is disclosed.

Darstellung der ErfindungPresentation of the invention

Die Aufgabe der Erfindung ist es, eine Vorrichtung zum Aufbereiten eines Gemisches, insbesondere eines schaumartigen Reinigungsgemisches vorzuschlagen, die die Nachteile des genannten Standes der Technik überwinden soll.The object of the invention is to provide a device for preparing a mixture, in particular a foam-like cleaning mixture, which is intended to overcome the disadvantages of the cited prior art.

Die Aufgabe der Erfindung wird durch eine Vorrichtung zum Aufbereiten eines Gemisches nach Anspruch 1 gelöst. Dabei haben die Massnahmen der Erfindung zur Folge, dass mit der vorgeschlagenen Vorrichtung zum Aufbereiten eines Gemisches, insbesondere eines schaumartigen Reinigungsgemisches leicht Anreicherungswerte der chemischen Substanz von über 5%, bei der Wahl geeigneter Bedingungen auch bis über 30% ermöglicht werden.The object of the invention is achieved by a device for processing a mixture according to claim 1. The measures of the invention result in that with the proposed device for preparing a mixture, in particular a foam-like cleaning mixture easily enrichment values of the chemical substance of more than 5%, are made possible with the choice of suitable conditions to over 30%.

Bei der erfindungsgemässen Vorrichtung mit einem Flüssigkeitseinlass, einem Flüssigkeitskanal und einer Flüssigkeitsdüse, bei der der Flüssigkeitseinlass mittels des Flüssigkeitskanals mit der Flüssigkeitsdüse in Verbindung steht und bei der der Flüssigkeitskanal als Verjüngung des Flüssigkeitseinlasses im Wesentlichen konzentrisch mit diesem ausgebildet ist, einem Mischraum, in welchem die Flüssigkeitsdüse im Wesentlichen als Ende des Flüssigkeitskanals endet, einem Mitteleinlass, welcher im Wesentlichen senkrecht zur Richtung der Flüssigkeitsdüse im Mischraum endet, einem Strömungsraum, einem Verbindungskanal, welcher den Mischraum mit dem Strömungsraum verbindet und einem Druckgaseinlass, der mit Druckluft in Verbindung bringbar ist, und einer Druckgasdüse, die im Strömungsraum endet und welche mit der Druckluft des Druckgaseinlasses beaufschlagbar ist, scheint es erheblich konstruktive Vorteile zu haben, wenn die Druckgasdüse im Wesentlichen parallel zum Verbindungskanal im Strömungsraum gerichtet ist.In the device according to the invention with a liquid inlet, a liquid channel and a liquid nozzle in which the liquid inlet communicates with the liquid nozzle by means of the liquid channel and in which the liquid channel is formed as a taper of the liquid inlet substantially concentric therewith, a mixing space in which Liquid nozzle terminates substantially as the end of the liquid passage, a center inlet, which ends substantially perpendicular to the direction of the liquid nozzle in the mixing space, a flow space, a connecting channel which connects the mixing space with the flow space and a compressed gas inlet, which is in communication with compressed air, and a Druckgasdüse, which ends in the flow space and which can be acted upon by the compressed air of the compressed gas inlet, it seems to have considerable design advantages, if the compressed gas nozzle substantially parallel to verbi tion channel is directed in the flow space.

Vorteilhaft ist es, wenn die Vorrichtung einen weiteren Mitteleinlass aufweist, der im Wesentlichen senkrecht zum Verbindungskanal und zur Druckgasdüse im Strömungsraum endet und mit einem weiteren Mittel beaufschlagbar ist. Dann kann die Vorrichtung nämlich auch ohne eine Beaufschlagung des ersten Mitteleinlasses mit einer chemischen Substanz - oder zusätzlich dazu - betrieben werden, wenn die alternative oder zusätzliche Substanz nicht als Reinigungsschaum aufbereitet werden soll. Wenn man Luft dazu gibt, kann auch ein vordosierter Reinigungsschaum aufbereitet werden.It is advantageous if the device has a further central inlet, which ends substantially perpendicular to the connecting channel and the compressed gas nozzle in the flow space and can be acted upon by a further agent. In that case, the device can also be operated without, or in addition to, applying a chemical agent to the first central inlet, if the alternative or additional substance is not intended to be treated as a cleaning foam. If you give it air, a pre-dosed cleaning foam can be prepared.

Hinsichtlich der Herstellung ist es besonders vorteilhaft, wenn der Flüssigkeitskanal eine weitere, im Wesentlichen konzentrische Verjüngung aufweist, da dann die Bohrungen sukzessive gebohrt werden können.With regard to the production, it is particularly advantageous if the liquid channel has a further, substantially concentric taper, since then the holes can be drilled successively.

Erfindungsgemäss ist der Mischraum im Wesentlichen zylindrisch und konzentrisch zum Flüssigkeitskanal ausgebildet sein. Der Anschluss des Verbindungskanals mit dem Mischraum wird vorteilhafterweise eine im Wesentlichen konzentrische Verjüngung aufweisen.According to the invention, the mixing space is essentially cylindrical and concentric with the liquid channel. The connection of the connection channel with the mixing chamber will advantageously have a substantially concentric taper.

Wie schon bei dem Injektor der WO 2005/028132 A1 scheint es auf die Dimensionierungen anzukommen, wenn man einen optimalen Injektor herstellen will. Allerdings wird in dieser Erfindung bezüglich der Dimensionierungen ein völlig anderer Weg eingeschlagen. Zunächst hat es sich als vorteilhaft herausgestellt, wenn die Flüssigkeitsdüse weit über 50%, vorzugsweise ca. 70% in den Mischraum hineinragt. Dabei endet die Düse weit hinter den Mitteleinlass. Der Abstand zwischen der Flüssigkeitsdüse und dem Verbindungskanal beträgt 4.0 bis 8.0 mm, vorzugsweise 5.5 bis 6.5 mm.As with the injector WO 2005/028132 A1 It seems to arrive at the dimensions, if one wants to produce an optimal injector. However, a completely different approach is taken in this invention in terms of sizing. First, it has proven to be advantageous if the liquid nozzle protrudes well over 50%, preferably about 70% in the mixing chamber. The nozzle ends far behind the center inlet. The distance between the liquid nozzle and the connecting channel is 4.0 to 8.0 mm, preferably 5.5 to 6.5 mm.

In der genannten Auslegung erscheint es wichtig, wenn der Flüssigkeitskanal einen vorderen Teil - nämlich die eigentliche Flüssigkeitsdüse - aufweist, der als Bohrung von 1.0 bis 2.5 mm, für einen Wasserdruck von 100 bis 200 bar vorzugsweise von 1.2 bis 1.6 mm, für einen Wasserdruck von 15 bis 60 bar vorzugsweise 1.7 bis 2.1 mm und der Verbindungskanal als Bohrung von 3.0 bis 4.0 mm, vorzugsweise von ca. 3.5 mm ausgebildet ist.In the above design, it appears important if the liquid channel has a front part - namely the actual liquid nozzle - which as a bore of 1.0 to 2.5 mm, for a water pressure of 100 to 200 bar, preferably from 1.2 to 1.6 mm, for a water pressure of 15 to 60 bar preferably 1.7 to 2.1 mm and the connecting channel is designed as a bore of 3.0 to 4.0 mm, preferably of about 3.5 mm.

Der Flüssigkeitskanal sollte eine Länge von 12 bis 20 mm, vorzugsweise von ca. 15 mm und die Länge der dünnsten Bohrung 7 bis 11 mm, vorzugsweise von ca. 9 mm aufweisen.The liquid channel should have a length of 12 to 20 mm, preferably of about 15 mm and the length of the thinnest hole 7 to 11 mm, preferably of about 9 mm.

Die vorbenannten sowie die beanspruchten und in den nachfolgenden Ausführungsbeispielen beschriebenen, erfindungsgemäss zu verwendenden Elemente unterliegen in ihrer Grösse, Formgestaltung, Materialverwendung und ihrer technischen Konzeption keinen besonderen Ausnahmebedingungen, so dass die in dem jeweiligen Anwendungsgebiet bekannten Auswahlkriterien uneingeschränkt Anwendung finden können.The above-mentioned as well as the claimed and described in the following embodiments, according to the invention to be used elements are subject to their size, shape design, material usage and their technical conception no special conditions of exception, so that the well-known in the respective field of application selection criteria can apply without restriction.

Kurze Beschreibung der ZeichnungenBrief description of the drawings

Weitere Einzelheiten, Vorteile und Merkmale des Gegenstandes der vorliegenden Erfindung ergeben sich aus der nachfolgenden Beschreibung der dazu gehörenden Zeichnungen, in denen - beispielhaft - erfindungsgemässe Injektoren erläutert werden. In den Zeichnungen zeigt:

Figur 1
eine schematische 3-D Ansicht eines Injektors gemäss einem Ausführungsbeispiels der Erfindung, mit dem Strebenprofil und dem Verbindungssteg, in perspektivischer Darstellung;
Figur 2
eine Ansicht der funktionalen Elemente entsprechend Figur 1;
Figur 3
eine Ansicht gemäss Figur 2, wobei der Injektor um 180° gedreht dargestellt ist;
Figur 4
ein weiblicher Teil des Injektors gemäss den Figuren 1 bis 3;
Figur 5
der weibliche Teil gemäss Figur 4 entlang der Schnittlinie A-A, um 90° gedreht;
Figur 6
der weibliche Teil gemäss den Figuren 4 und 5 in Ansicht von unten;
Figur 7
ein männlicher Teil des Injektors gemäss den Figuren 1 bis 3;
Figur 8
der männliche Teil gemäss Figur 7 entlang der Schnittlinie A-A; und
Figur 9
der männliche Teil gemäss den Figuren 7 und 8 in Ansicht auf den Eingang.
Further details, advantages and features of the subject matter of the present invention will become apparent from the following description of the accompanying drawings, in which - for example - inventive injectors will be explained. In the drawings shows:
FIG. 1
a schematic 3-D view of an injector according to an embodiment of the invention, with the strut profile and the connecting web, in perspective view;
FIG. 2
a view of the functional elements accordingly FIG. 1 ;
FIG. 3
a view according to FIG. 2 wherein the injector is shown rotated by 180 °;
FIG. 4
a female part of the injector according to the FIGS. 1 to 3 ;
FIG. 5
the female part according to FIG. 4 along the section line AA, rotated by 90 °;
FIG. 6
the female part according to the FIGS. 4 and 5 in bottom view;
FIG. 7
a male part of the injector according to the FIGS. 1 to 3 ;
FIG. 8
the male part according to FIG. 7 along the section line AA; and
FIG. 9
the male part according to the FIGS. 7 and 8 in view of the entrance.

Wege zur Ausführung der ErfindungWays to carry out the invention

Die in Figur 1 bis 3 dargestellte Vorrichtung zum Aufbereiten eines Gemisches, insbesondere eines schaumartigen Reinigungsgemisches, weist einen Flüssigkeitseinlass 4, einen Flüssigkeitskanal 6 und eine Flüssigkeitsdüse 8 auf. Der Flüssigkeitseinlass 4 steht mittels des Flüssigkeitskanals 6 mit der Flüssigkeitsdüse 8 in Verbindung. Der Flüssigkeitskanal 6 ist als Verjüngung 10 des Flüssigkeitseinlasses 4 im Wesentlichen konzentrisch mit diesem ausgebildet ist. Die Flüssigkeitsdüse 8 endet als Ende des Flüssigkeitskanals 6 in einem Mischraum 12, in dem ein Mitteleinlass 14 senkrecht zur Richtung der Flüssigkeitsdüse 8 endet. Weiterhin weist die Vorrichtung einen Strömungsraum 16 auf, der mittels eines Verbindungskanals 18 mit dem Mischraum 12 verbunden ist.In the Figure 1 to 3 illustrated apparatus for preparing a mixture, in particular a foam-like cleaning mixture, has a liquid inlet 4, a liquid channel 6 and a liquid nozzle 8. The liquid inlet 4 communicates with the liquid nozzle 8 by means of the liquid channel 6. The liquid channel 6 is formed as a taper 10 of the liquid inlet 4 is substantially concentric therewith. The liquid nozzle 8 ends as the end of the liquid channel 6 in a mixing space 12 in which a center inlet 14 ends perpendicular to the direction of the liquid nozzle 8. Furthermore, the device has a flow space 16, which is connected by means of a connecting channel 18 with the mixing chamber 12.

Im Strömungsraum endet weiterhin eine Druckgasdüse 22, welche mittels eines Druckgaseinlasses 20 mit einem Druckgas, insbesondere mit Druckluft in Verbindung bringbar ist. Die Druckgasdüse 22 ist parallel zum Verbindungskanal 18 im Strömungsraum 16 gerichtet.In the flow space also ends a compressed gas nozzle 22, which is brought by means of a compressed gas inlet 20 with a pressurized gas, in particular with compressed air in combination. The compressed gas nozzle 22 is directed parallel to the connecting channel 18 in the flow space 16.

Im vorliegenden Ausführungsbeispiel hat der Flüssigkeitskanal 6 eine weitere, im Wesentlichen konzentrische Verjüngung 26. Der Mischraum 12 ist zylindrisch und konzentrisch zum Flüssigkeitskanal 6 ausgebildet. Der Anschluss des Verbindungskanals 18 mit dem Mischraum 12 weist eine konzentrische Verjüngung 28 auf. Wie in den Figuren 1 bis 4 dargestellt, ragt die Flüssigkeitsdüse 8 ca. 70% und insbesondere hinter den Mitteleinlass 14, in den Mischraum 12 hinein. Der vordere Teil der Flüssigkeitsdüse 8 ist als Bohrung von 1.8 mit einer Länge von 9 mm ausgebildet. Der Verbindungskanal 18 ist als Bohrung von 3.5 mm ausgebildet. Der Abstand zwischen der Flüssigkeitsdüse 8 und dem Verbindungskanal 18 ist im vorliegenden, vorteilhaften und ausgetesteten Ausführungsbeispiel 5.82 mm.In the present exemplary embodiment, the liquid channel 6 has a further, essentially concentric narrowing 26. The mixing chamber 12 is cylindrical and concentric with the liquid channel 6. The connection of the connecting channel 18 with the mixing chamber 12 has a concentric taper 28. As in the FIGS. 1 to 4 represented, projects the liquid nozzle 8 about 70% and in particular behind the central inlet 14, into the mixing chamber 12 into it. The front part of the liquid nozzle 8 is formed as a bore of 1.8 with a length of 9 mm. The connecting channel 18 is formed as a bore of 3.5 mm. The distance between the liquid nozzle 8 and the connecting channel 18 is 5.82 mm in the present, advantageous and tested embodiment.

In einem alternativen Ausführungsbeispiel ist ein weiterer Mitteleinlass ausgebildet. Dieser steht senkrecht zum Verbindungskanal 18 und zur Druckgasdüse 22, endet im Strömungsraum und ist mit einem weiteren Mittel beaufschlagbar.In an alternative embodiment, another center inlet is formed. This is perpendicular to the connecting channel 18 and the compressed gas nozzle 22, ends in the flow space and can be acted upon by a further agent.

Im vorliegenden Ausführungsbeispiel ist der Injektor durch Verschweissen aus zwei Teilen hergestellt, die im folgenden "weiblicher Teil" gemäss den Figuren 4 bis 6 und "männlicher Teil" gemäss den Figuren 7 bis 9 genannt werden. Durch diese Art der Herstellung ist es möglich, insbesondere die innen liegenden Bohrungen etc. des Injektors am männlichen Teil und am weiblichen Teil auszuarbeiten, bevor die beiden Teile miteinander verbunden werden. Insbesondere für die Herstellung von Prototypen und Versuchsanordnungen hat sich eine verschraubte Verbindung zwischen dem männlichen teil und dem weiblichen Teil als bevorzugt herausgestellt.In the present embodiment, the injector is made by welding of two parts, which in the following "female part" according to the FIGS. 4 to 6 and "male part" according to the FIGS. 7 to 9 to be named. By this type of production, it is possible to work out in particular the inner holes etc. of the injector on the male part and on the female part, before the two parts are joined together. In particular, for the production of prototypes and experimental arrangements, a screwed connection between the male part and the female part has been found to be preferred.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

22
Vorrichtung zum Aufbereiten eines GemischesApparatus for preparing a mixture
44
Flüssigkeitseinlassliquid inlet
66
Flüssigkeitskanalliquid channel
88th
Flüssigkeitsdüsefluid nozzle
1010
Verjüngung des FlüssigkeitseinlassesRejuvenation of the fluid inlet
1212
Mischraummixing room
1414
Mitteleinlassinlet
1616
Strömungsraumflow chamber
1818
Verbindungskanalconnecting channel
2020
DruckgaseinlassCompressed gas inlet
2222
Druckgasdüsecompressed gas nozzle
2626
weitere Verjüngungfurther rejuvenation
2828
VerjüngugVerjüngug

Claims (9)

  1. An apparatus for preparing a foam-like cleaning mixture, comprising
    - a liquid inlet (4), a liquid channel (6) and a liquid nozzle (8), wherein the liquid inlet (4) is in communication with the liquid nozzle (8) by means of the liquid channel (6) and wherein the liquid channel (6) is configured as a tapered region (10) of the liquid inlet (4) in a substantially concentric manner,
    - a mixing chamber (12) into which the liquid nozzle (8) ends by substantially forming an end of the liquid channel (6),
    - a media inlet (14) that ends into the mixing chamber (12) substantially perpendicularly to the direction of the liquid nozzle (8),
    - a flow chamber (16),
    - a connecting channel (18) that connects the mixing chamber (12) with the flow chamber (16) and
    - a pressurized gas inlet (20) that can be brought into communication with a pressurized gas, in particular with pressurized air, and a pressurized gas nozzle (22) that ends into the flow chamber (16) and that can be loaded with the pressurized gas from the pressurized gas inlet (20), the pressurized gas nozzle (22) being aligned substantially parallel to the connecting channel (18) in the flow chamber (16),
    characterized in that
    the mixing chamber (12) is configured substantially cylindrical and concentric to the liquid channel (6),
    with the liquid nozzle (8) protruding by over 50% into the mixing chamber (12) all the way to behind the mixing inlet (14),
    the liquid nozzle (8) comprises a front part that is configured as a borehole of 1.0 to 2.5 mm,
    the connecting channel (18) is configured as a borehole of 3.0 to 4.0 mm, the distance between the liquid nozzle (8) and the connecting channel (18) is 4.0 to 8.0 mm
    and wherein the liquid channel (6) has a length of 12 to 20 mm, and the length of the thinnest borehole is 7 to 11 mm.
  2. The apparatus according to claim 1, characterized by a further media inlet, that ends into the flow chamber (16) substantially perpendicularly to the connecting channel (18) and to the pressurized gas nozzle (22) and that can be loaded with a further medium.
  3. The apparatus according to claim 1 or 2, characterized in that the liquid channel (6) comprises one further, substantially concentric tapered region (26).
  4. The apparatus according to one of the preceding claims, characterized in that the connection of the connecting channel (18) has a tapered region substantially concentric with the mixing chamber (12).
  5. The apparatus according to one of the preceding claims, characterized in that the liquid nozzle (8) protrudes by about 70% into the mixing chamber (12).
  6. The apparatus according to one of the preceding claims, characterized in that the liquid nozzle (8) comprises a front part that is configured as a borehole of 1.2 to 1.6 mm for a water pressure of 100 to 200 bar, 1.7 to 2.1 for a water pressure of 15 to 60 bar.
  7. The apparatus according to one of the preceding claims, characterized in that the connecting channel (18) is configured as a borehole of about 3.5 mm.
  8. The apparatus according to one of the preceding claims, characterized in that the distance between the liquid nozzle (8) and the connecting channel (18) is 5.5 to 6.5 mm.
  9. The apparatus according to one of the preceding claims, characterized in that the liquid channel (6) has a length of about 15 mm, and the length of the thinnest borehole is about 9 mm.
EP11174645.9A 2011-07-20 2011-07-20 Injector Active EP2548633B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP11174645.9A EP2548633B1 (en) 2011-07-20 2011-07-20 Injector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP11174645.9A EP2548633B1 (en) 2011-07-20 2011-07-20 Injector

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EP2548633A1 EP2548633A1 (en) 2013-01-23
EP2548633B1 true EP2548633B1 (en) 2014-05-07

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ID=45065556

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Application Number Title Priority Date Filing Date
EP11174645.9A Active EP2548633B1 (en) 2011-07-20 2011-07-20 Injector

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Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3547409A (en) * 1968-05-23 1970-12-15 Jacuzzi Bros Inc Assembly for producing detergent foam
DE3005653A1 (en) * 1980-02-15 1981-08-20 Brown, Boveri & Cie Ag, 6800 Mannheim Steam-driven feed water injector - has mixing chamber with auxiliary and main diffusors and secondary diffusor to remove excess water
US4505431A (en) * 1982-06-14 1985-03-19 Spraco, Inc. Apparatus for discharging three commingled fluids _
DE10342000A1 (en) 2003-09-08 2005-04-07 Alfred Kärcher Gmbh & Co. Kg Method for producing a detergent foam and foam generation system for carrying out the method

Also Published As

Publication number Publication date
EP2548633A1 (en) 2013-01-23

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