DE19655254B4 - Two substance nozzle for spraying gas and fluid mixture - at least one wall region of mixing chamber lying on axis of second inlet is point of origin for at least one fluid jet introduced in form of spray jet almost completely filling mixing chamber - Google Patents
Two substance nozzle for spraying gas and fluid mixture - at least one wall region of mixing chamber lying on axis of second inlet is point of origin for at least one fluid jet introduced in form of spray jet almost completely filling mixing chamber Download PDFInfo
- Publication number
- DE19655254B4 DE19655254B4 DE1996155254 DE19655254A DE19655254B4 DE 19655254 B4 DE19655254 B4 DE 19655254B4 DE 1996155254 DE1996155254 DE 1996155254 DE 19655254 A DE19655254 A DE 19655254A DE 19655254 B4 DE19655254 B4 DE 19655254B4
- Authority
- DE
- Germany
- Prior art keywords
- mixing chamber
- nozzle
- fluid
- axis
- inlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/02—Spray pistols; Apparatus for discharge
- B05B7/04—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
- B05B7/0416—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid
- B05B7/0441—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid with one inner conduit of liquid surrounded by an external conduit of gas upstream the mixing chamber
- B05B7/0458—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid with one inner conduit of liquid surrounded by an external conduit of gas upstream the mixing chamber the gas and liquid flows being perpendicular just upstream the mixing chamber
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
- B05B1/02—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape
- B05B1/04—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to produce a jet, spray, or other discharge of particular shape or nature, e.g. in single drops, or having an outlet of particular shape in flat form, e.g. fan-like, sheet-like
- B05B1/044—Slits, i.e. narrow openings defined by two straight and parallel lips; Elongated outlets for producing very wide discharges, e.g. fluid curtains
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- Nozzles (AREA)
Abstract
Description
Die Erfindung betrifft eine Zweistoffdüse zum Versprühen eines Gas/Flüssigkeitsgemisches, insbesondere eines Luft/Wassergemisches, mit einer Mischkammer mit einer ersten Eintrittsöffnung für das unter Druck zugeführte gasförmige Medium, der eine Austrittsöffnung mit einem Düsenmundstück gegenüberliegt, und mit einer zweiten Eintrittsöffnung, durch die ein unter Druck stehender Flüssigkeitsstrahl etwa senkrecht zu der Achse der ersten Eintrittsöffnung in die Mischkammer eintritt.The invention relates to a two-substance nozzle for spraying a gas / liquid mixture, in particular an air / water mixture, with a mixing chamber having a first inlet for the supplied under pressure gaseous medium, which faces an outlet opening with a nozzle orifice, and with a second inlet opening through which a pressurized liquid jet enters the mixing chamber approximately perpendicular to the axis of the first inlet opening.
Zweistoffdüsen dieser Art sind bekannt (
Bekannt ist es auch (
Aus der deutschen Patentschrift
Aus der europäischen Offenlegungsschrift
Der Erfindung liegt die Aufgabe zugrunde, eine Zweistoffdüse der eingangs genannten Art so auszubilden, dass eine einfache Herstellung möglich ist, dennoch aber eine ausgezeichnete Vermischung der beiden Medien schon vor dem Erreichen der Düsenmündung bewirkt werden kann.The invention has the object of providing a two-fluid nozzle of the type mentioned in such a way that a simple production is possible, but nevertheless excellent mixing of the two media can be effected even before reaching the nozzle orifice.
Diese Aufgabe wird durch eine Zweistoffdüse mit den Merkmalen von Anspruch 1 gelöst.This object is achieved by a two-fluid nozzle with the features of
Ausgehend von der Überlegung, dass es für diesen Zweck vorteilhaft ist, möglichst den ganzen Mischkammerquerschnitt für die Mischung auszunützen, kann bei einer erfindungsgemäßen Zweistoffdüse mindestens ein auf der Achse der zweiten Eintrittsöffnung liegender Wandbereich der Mischkammer Ausgangspunkt für mindestens einen in die Form eines die Mischkammer nahezu vollständig ausfüllenden Sprühstrahles gebrachten Flüssigkeitsstrahles sein. Bei der Erfindung werden daher keine in die Mischkammer einseitig hereinragenden und die Strömungsverhältnisse beeinflussenden Einsätze vorgesehen, sondern es wird ein von der Mischkammerwand ausgehender, im wesentlichen senkrecht zu der Gasströmung gerichteter Flüssigkeitssprühstrahl erzeugt, der über den gesamten Mischkammerquerschnitt von dem quer zu ihm strömenden Gasstrom erfasst und daher optimal mit diesem vermischt werden kann.Starting from the consideration that it is advantageous for this purpose to utilize as much as possible the entire mixing chamber cross section for the mixture, in a two-substance nozzle according to the invention at least one wall region of the mixing chamber lying on the axis of the second inlet opening can be the starting point for at least one in the form of a mixing chamber Completely be filling jet delivered liquid jet. In the present invention, therefore, no inserts projecting into the mixing chamber and influencing the flow conditions are provided, but a liquid spray jet issuing from the mixing chamber wall directed essentially perpendicular to the gas flow is generated which is detected by the gas flow flowing across it over the entire mixing chamber cross section and therefore can be optimally mixed with this.
Die Erfindung lässt sich dabei sehr einfach dadurch verwirklichen, dass die zweiten Eintrittsöffnung von der Mündung einer Flüssigkeitssprühdüse gebildet ist, die im Wandbereich der Mischkammer angeordnet ist und die einen Teil der Mischkammerwandung bildet. Dabei können Flüssigkeitssprühdüsen bekannter Bauart verwendet werden, die mit Vorzerstäubungseinrichtungen, beispielsweise in der Art eines X-Dralleinsatzes, eines gefrästen Dralleinsatzes, eines gebohrten Dralleinsatzes, oder auch mit einem Zerstäubungseinsatz in Flachstrahlcharakteristik, versehen sind.The invention can thereby be realized very simply in that the second inlet opening is formed by the mouth of a liquid spray nozzle, which is arranged in the wall region of the mixing chamber and forms part of the mixing chamber wall. In this case, liquid spray nozzles of known design can be used which are provided with Vorserstäubungseinrichtungen, for example in the manner of an X-twist insert, a milled swirl insert, a drilled swirl insert, or with a Zerstäubungseinsatz flat fan.
Für die Erfindung können Flüssigkeitssprühdüsen bekannter Bauart verwendet werden, die mit Vorzerstäubungseinrichtungen, beispielsweise in der Art eines X-Dralleinsatzes, eines gefrästen Dralleinsatzes, eines gebohrten Dralleinsatzes, oder auch mit einem Zerstäubungseinsatz in Flachstrahlcharakteristik, versehen sind.For the invention, liquid spray nozzles of known design can be used, which are provided with Vorserstäubungseinrichtungen, for example in the form of an X-twist insert, a milled swirl insert, a drilled swirl insert, or with a Zerstäubungseinsatz flat fan.
Die Erfindung ist in der Zeichnung anhand von Ausführungsbeispielen dargestellt und wird im folgenden erläutert. Es zeigen:The invention is illustrated in the drawing with reference to embodiments and will be explained below. Show it:
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Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1996155254 DE19655254B4 (en) | 1996-02-10 | 1996-02-10 | Two substance nozzle for spraying gas and fluid mixture - at least one wall region of mixing chamber lying on axis of second inlet is point of origin for at least one fluid jet introduced in form of spray jet almost completely filling mixing chamber |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1996155254 DE19655254B4 (en) | 1996-02-10 | 1996-02-10 | Two substance nozzle for spraying gas and fluid mixture - at least one wall region of mixing chamber lying on axis of second inlet is point of origin for at least one fluid jet introduced in form of spray jet almost completely filling mixing chamber |
Publications (1)
Publication Number | Publication Date |
---|---|
DE19655254B4 true DE19655254B4 (en) | 2014-05-22 |
Family
ID=50625882
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE1996155254 Expired - Fee Related DE19655254B4 (en) | 1996-02-10 | 1996-02-10 | Two substance nozzle for spraying gas and fluid mixture - at least one wall region of mixing chamber lying on axis of second inlet is point of origin for at least one fluid jet introduced in form of spray jet almost completely filling mixing chamber |
Country Status (1)
Country | Link |
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DE (1) | DE19655254B4 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2629068C2 (en) * | 2013-02-28 | 2017-08-24 | Лехлер ГмбХ | Two-component nozzle and liquid-gas mixture spraying method |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE683828C (en) * | 1935-11-10 | 1939-11-16 | J U Otto Krebber Fa | Spray gun |
EP0640401A1 (en) * | 1993-08-23 | 1995-03-01 | Spraying Systems Co. | Air atomizing spray nozzle assembly with angled discharge orifices |
-
1996
- 1996-02-10 DE DE1996155254 patent/DE19655254B4/en not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE683828C (en) * | 1935-11-10 | 1939-11-16 | J U Otto Krebber Fa | Spray gun |
EP0640401A1 (en) * | 1993-08-23 | 1995-03-01 | Spraying Systems Co. | Air atomizing spray nozzle assembly with angled discharge orifices |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2629068C2 (en) * | 2013-02-28 | 2017-08-24 | Лехлер ГмбХ | Two-component nozzle and liquid-gas mixture spraying method |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R163 | Identified publications notified | ||
R163 | Identified publications notified |
Effective date: 20120612 |
|
R016 | Response to examination communication | ||
R018 | Grant decision by examination section/examining division | ||
R020 | Patent grant now final | ||
R020 | Patent grant now final |
Effective date: 20150224 |
|
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |