EP0911082A1 - Method for producing a gas-droplet jet stream, equipment and nozzle therefor - Google Patents

Method for producing a gas-droplet jet stream, equipment and nozzle therefor Download PDF

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Publication number
EP0911082A1
EP0911082A1 EP97932056A EP97932056A EP0911082A1 EP 0911082 A1 EP0911082 A1 EP 0911082A1 EP 97932056 A EP97932056 A EP 97932056A EP 97932056 A EP97932056 A EP 97932056A EP 0911082 A1 EP0911082 A1 EP 0911082A1
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EP
European Patent Office
Prior art keywords
gas
nozzle
liquid
droplet jet
flow
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.)
Granted
Application number
EP97932056A
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German (de)
French (fr)
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EP0911082A4 (en
EP0911082B1 (en
Inventor
Jury Vladimirovich Zuev
Alexandr Vladimirovich Karpyshev
Igor Alexandrovich Lepeshinsky
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NAUCHNO-ISSLEDOVATELSKY INST NIZKIKH TEMPERATUR P
Original Assignee
Nauchno-Issledovatelsky Institut Nizkikh Temperatur Primai (Moskovskom Gosudarstvennnom Aviatsionnom Institutetekhnicheskom Un
NII NIZKIKH TEMPERATUR PRIMAI
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Publication of EP0911082A1 publication Critical patent/EP0911082A1/en
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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
    • 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
    • B05B7/045—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 parallel just upstream the mixing chamber
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
    • A62C3/02—Fire prevention, containment or extinguishing specially adapted for particular objects or places for area conflagrations, e.g. forest fires, subterranean fires
    • A62C3/0207—Fire prevention, containment or extinguishing specially adapted for particular objects or places for area conflagrations, e.g. forest fires, subterranean fires by blowing air or gas currents with or without dispersion of fire extinguishing agents; Apparatus therefor, e.g. fans
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C31/00—Delivery of fire-extinguishing material
    • A62C31/02—Nozzles specially adapted for fire-extinguishing
    • 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
    • B05B7/0433—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 gas surrounded by an external conduit of liquid upstream the mixing chamber

Definitions

  • the present inventions relate to the technology of Formation of long-range gas droplet jets can be used in fire extinguishing technology, in agriculture Irrigation of the soil and used in other industries in which the generation of gas droplet jets long range is required.
  • Methods for generating liquid jets are known with some the long range of the beam by increasing the pressure in the fluid delivery system and others by supplying a gas jet into a nozzle of the device is guaranteed.
  • the known method involves accelerating a gas stream in a gas dynamic nozzle, the supply of a disperse Liquid flow into the gas flow during its acceleration and the acceleration of the resulting two-phase current in the nozzle.
  • the known device comprises a profiled channel and a mixing chamber.
  • a common disadvantage of the analogs mentioned is that it is possible with the known means, the range of the gas droplet jet beyond 50 m what e.g. when extinguishing fires in multi-storey buildings and high facilities is required and that it is difficult is, the dispersion composition of the jet drops too Taxes.
  • the conditions are the known technical solutions not defined for the formation of the gas droplet jet, under which the range of the gas droplet jet is up to the required width (over 50 m) can be increased.
  • the present invention is based on the object Range of the formed gas droplet jet to 50 m and to further increase, thereby broadening the scope of the Process, the device and the nozzle would be possible.
  • Water can be used as the liquid.
  • Length L of a profiled channel of the nozzle is selected according to the following condition: L ⁇ 5d kr , where d kr is the diameter of the critical cross section of the nozzle.
  • Water can be used as the liquid in the device become.
  • the system of gas supply at least a turbocompressor device with an outlet device comprises, which is connected to an inlet of the gas dynamic nozzle stands.
  • the device can be designed to be mobile, for what purpose it is provided with a means of transportation.
  • the technical result mentioned can also be achieved in that, in the case of a nozzle for generating the gas-droplet jet, which comprises a profiled channel and a chamber for mixing liquid and gas, the length L of the profiled channel of the nozzle according to the following condition is selected: L ⁇ 5d kr , where d kr is the diameter of the critical cross section of the nozzle.
  • Water can be used as the liquid.
  • Water is used as the liquid.
  • a turbocompressor device is used to generate the gas flow used.
  • the proposed device comprises a system 1 (FIG. 1) for supplying liquid, a system 2 for supplying gas, a gas-dynamic nozzle 4 with a chamber 3 for mixing liquid and gas.
  • the length of a profiled channel 7 (FIGS. 2 and 3) of the nozzle was chosen according to the following condition: L ⁇ 5d kr , where d kr is the diameter of the critical cross section of the nozzle.
  • liquid Water is used, but it should be noted that as a liquid other fabrics can be used depending on the specific application of the device.
  • the system 2 of gas supply comprises a turbocompressor device, whose outlet device with the inlet of the gas dynamic Nozzle 4 communicates.
  • turbocompressor device used, but it should be noted that it can be several such devices.
  • the device also includes a system 5 (Fig. 1) for Control of the adjustment of the nozzle and a means of transport 6 for a relocation on which the systems and components the device are arranged.
  • a system 5 Fig. 1 for Control of the adjustment of the nozzle
  • a means of transport 6 for a relocation on which the systems and components the device are arranged.
  • FIG. 3 The embodiment of the device depicted in FIG. 3 is identical to the embodiment of the device of FIG. 2. The difference lies in the embodiment of the profiled Channel 7 of the nozzle in the form of a ring (Fig. 3). When using the Ring nozzle 4, a central body 10 is arranged in the channel.
  • the nozzle 4 comprises a chamber 3 for mixing liquid and gas (Fig. 2) with devices 8 for supplying liquid and a device 9 for gas supply and a profiled channel 7.
  • the length of the profiled channel of the nozzle was chosen according to the following condition: L ⁇ 5d kr , where d kr is the diameter of the critical cross section of the nozzle.
  • the embodiment of the nozzle shown in FIG. 3 is identical with the embodiment of the nozzle from FIG. 2.
  • the profiled channel 7 of the Nozzle 4 is formed in a ring shape and a central body in it 10 is arranged (this type of nozzle is up to any person skilled in the art known in the field of gas dynamics).
  • the above conditions of choice of gas pressure and relative concentration of the liquid in the two-phase flow for the proposed procedure, as well as the conditions for the Choice of the length of the gasodynamic nozzle for the proposed are based on the following factors set the influence on the effectiveness of acceleration of the gas droplet jet and its velocity that determine the range of the beam.
  • the required velocity of the gas droplet jet is determined by the pressure value P when entering the gas dynamic nozzle: P ⁇ 5 * 10 5 Pa.
  • these pressure values are at the inlet the nozzle accelerates the two-phase flow (gaseous liquid) possible up to a speed that, taking into account the real efficiency of the nozzle, over 60 m / s lies.
  • the speed values of the gas-liquid mixture reached are more than twice the highest Velocity values of a liquid jet, which with the previous means achieved with the same liquid parameters can be.
  • the device is operated using the means of transport 6 (e.g. of an automobile) brought into the starting position.
  • the nozzle 4 becomes mean control of the system 5 for adjustment control the nozzle is directed towards an object, which is the gas droplet jet should be fed.
  • the turbocompressor device forming part of the system 2 of the gas supply (not shown in the drawings) switched on.
  • the accelerated air flow from the outlet of the Engine is in the device 9 for gas supply Mixing chamber 3 passed, where the two-phase flow arises.
  • Water is in the mixing chamber 3 through devices 8 for Injection of liquid in the form of individual jets, which mix with the incoming air, creating a Stream of gas droplets is created.
  • devices 8 for Injection of liquid in the form of individual jets which mix with the incoming air, creating a Stream of gas droplets is created.
  • For even distribution of the Water in the mixing chamber 3 can be used as devices for Fluid jets are used.
  • the gas-droplet jet can be distributed relatively evenly the water drop compacted in the cross-section of the beam (compressed).
  • the maximum values of the air pressure at the inlet of the nozzle and the relative concentration of the water in the two-phase flow are chosen from conditions of the greatest packing density of the water particles in the air flow: P * g ⁇ 5.7 * 10 8 Pa, where P is the air pressure at the inlet opening of the nozzle and g is the relative concentration of water in the two-phase stream.
  • the air pressure at the inlet of the nozzle must be above 5 * 10 5 Pa in order to achieve the required (over 50 m) range of the gas droplet jet.
  • the range of the gas droplet jet is on insertion of the subject of the invention about 2.5 times larger than the maximum range of a liquid jet for the same Fluid consumption and the same initial pressure.
  • the available data confirm the possibility of realization the proposed method for generating a Gas droplet jet, as well as the device and the nozzle, with to whom the procedure is carried out and the possibility of Achieve the technical task in increasing the range of the gas droplet jet.
  • the process, the device and the nozzle used to produce of the gas droplet jet according to the invention are provided, can be used in different industries, in which the generation of a gas droplet jet with long range is required.

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  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Ecology (AREA)
  • Forests & Forestry (AREA)
  • Nozzles (AREA)
  • Gas Separation By Absorption (AREA)
  • Junction Field-Effect Transistors (AREA)
  • Lasers (AREA)
  • Pipeline Systems (AREA)

Abstract

A procedure for generating a gas/droplet flow consists of accelerating a gas flow in a gas-dynamic nozzle and while it is accelerating adding a dispersed liquid flow. The resulting two-phase flow is then accelerated in the nozzle, the pressure (P) at the input end of which and the relative concentration (g) of liquid in the two-phase flow are determined by set relationships, where P x g is not more than 0.57 GPa; P is at least 0.5 MPa, and g = Gl/Gg where Gl is the mass flow of liquid and Gg is the mass flow of gas. The gas flow for the procedure is created by at least one turbo-compressor feeding a gas-dynamic nozzle with a mixing chamber for the liquid (water) and gas, and a shaped nozzle channel (7) with its length at least five times its critical cross-section.

Description

Technisches GebietTechnical field

Die vorliegenden Erfindungen betreffen die Technologie der Bildung von Gas-Tröpfchen-Strahlen großer Reichweite und können in der Feuerlöschtechnik, in der Landwirtschaft beim Bewässern des Bodens und in anderen Industriezweigen eingesetzt werden, in denen die Erzeugung von Gas-Tröpfchen-Strahlen mit großer Reichweite erforderlich ist.The present inventions relate to the technology of Formation of long-range gas droplet jets can be used in fire extinguishing technology, in agriculture Irrigation of the soil and used in other industries in which the generation of gas droplet jets long range is required.

Stand der TechnikState of the art

Es sind Verfahren zur Erzeugung von Flüssigkeitsstrahlen bekannt, wobei bei einigen die große Reichweite des Strahles durch Druckerhöhung im Flüssigkeitszufuhrsystem und bei anderen durch Zufuhr eines Gasstrahls in eine Düse der Vorrichtung gewährleistet wird.Methods for generating liquid jets are known with some the long range of the beam by increasing the pressure in the fluid delivery system and others by supplying a gas jet into a nozzle of the device is guaranteed.

Es ist ein Verfahren zur Erzeugung von Gas-Tröpfchen-Strahlen bekannt, bei dem die Einspritzungwirkung eines Gasstrahls genutzt wird, der in einen Gasstrahlstutzen einer Düse eingegeben wird, um die Flüssigkeit zu beschleunigen und um die Reichweite des Strahls zu erhöhen (SU, A, 380279, A01g25/00, 1973).It is a process for generating gas droplet jets known in which the injection effect of a gas jet is used is entered into a gas jet nozzle of a nozzle to accelerate the liquid and around the Increase the range of the jet (SU, A, 380279, A01g25 / 00, 1973).

Es ist außerdem eine Vorrichtung zur Erzeugung eines Gas-Tröpfchen-Strahles bekannt, die ein Flüssigkeitszufuhrsystem und eine gasodynamischen Düse mit einem Zentralen Gasstrahlstutzen umfaßt (SU, A, 380279, A01g25/00, 1973). It is also a device for generating a gas droplet jet known which is a fluid delivery system and a gas-dynamic nozzle with a central gas jet nozzle includes (SU, A, 380279, A01g25 / 00, 1973).

Als nächstliegender Stand der Technik zu den vorliegenden Erfindungen werden ein Verfahren zur Erzeugung eines Gas-Tröpfchen-Strahls, eine Vorrichtung und eine Düse zur Erzeugung eines Gas-Tröpfchen-Strahls angesehen, die aus der RU, A1, 94003528, A62C31/02, 1995 bekannt sind.As the closest prior art to the present Inventions are a method of generating a gas droplet jet, a device and a nozzle for production of a gas droplet jet viewed from the RU, A1, 94003528, A62C31 / 02, 1995 are known.

Das bekannte Verfahren umfaßt die Beschleunigung eines Gasstroms in einer gasdynamischen Düse, die Zufuhr eines dispersen Flüssigkeitsstroms in den Gasstrom während seiner Beschleunigung und die Beschleunigung des entstandenen Zweiphasenstroms in der Düse.The known method involves accelerating a gas stream in a gas dynamic nozzle, the supply of a disperse Liquid flow into the gas flow during its acceleration and the acceleration of the resulting two-phase current in the nozzle.

Die bekannte Vorrichtung umfaßt einen profilierten Kanal und eine Mischkammer.The known device comprises a profiled channel and a mixing chamber.

Ein gemeinsamer Nachteil der genannten Analoge besteht darin, daß es mit den bekannten Mitteln umöglich ist, die Reichweite des Gas-Tröpfchen-Strahls über 50 m hinaus zu erhöhen, was z.B. beim Löschen von Bränden in mehrstöckigen Gebäuden und hohen Einrichtungen erforderlich ist, und daß es schwierig ist, die Dispersionszusammensetzung der Strahltropfen zu steuern.A common disadvantage of the analogs mentioned is that that it is possible with the known means, the range of the gas droplet jet beyond 50 m what e.g. when extinguishing fires in multi-storey buildings and high facilities is required and that it is difficult is, the dispersion composition of the jet drops too Taxes.

Bei den bekannten technischen Lösungen sind die Bedingungen zur Formierung des Gas-Tröpfchen-Strahls nicht festgelegt, unter denen die Reichweite des Gas-Tröpfchen-Strahls bis zu den erforderlichen Weiten (über 50 m) erhöht werden kann.The conditions are the known technical solutions not defined for the formation of the gas droplet jet, under which the range of the gas droplet jet is up to the required width (over 50 m) can be increased.

Offenbarung der ErfindungDisclosure of the invention

Den vorliegenden Erfindungen liegt die Aufgabe zugrunde, die Reichweite des gebildeten Gas-Tröpfchen-Strahls auf 50 m und weiter zu erhöhen, wodurch ein breiteres Anwendungsgebiet des Verfahrens, der Vorrichtung und der Düse möglich wäre. The present invention is based on the object Range of the formed gas droplet jet to 50 m and to further increase, thereby broadening the scope of the Process, the device and the nozzle would be possible.

Dies wird dadurch erreicht, daß bei dem Verfahren zur Erzeugung eines Gas-Tröpfchen-Strahls, das die Beschleunigung eines Gasstroms in einer Gas-Tröpfchen-Düse, die Zugabe eines Dispersionsstroms einer Flüssigkeit in den Gasstrom während seiner Beschleunigung und die Beschleunigung des entstandenen Zweiphasenstroms in der Düse umfaßt, erfindungsgemäß der Druck P am Einlaß der Düse und die relative Konzentration g der Flüssigkeit in dem Zweiphasenstrom nach folgenden Bedingungen gewählt werden: P*g ≤ 5,7*108Pa,   P ≥ 5*105Pa, wobei g = Gf/Gg ;

Gf -
Massendurchsatz der Flüssigkeit;
Gg -
Massendurchsatz des Gases.
This is achieved in that in the method for generating a gas droplet jet, which involves the acceleration of a gas stream in a gas droplet nozzle, the addition of a dispersion stream of a liquid into the gas stream during its acceleration and the acceleration of the resulting two-phase stream in of the nozzle, according to the invention the pressure P at the inlet of the nozzle and the relative concentration g of the liquid in the two-phase stream are selected according to the following conditions: P * g ≤ 5.7 * 10 8th Pa, P ≥ 5 * 10 5 Pa, in which g = G f /G G ;
G f -
Mass flow rate of the liquid;
G g -
Mass flow of gas.

Als Flüssigkeit kann Wasser verwendet werden.Water can be used as the liquid.

Es ist zweckmäßig, zur Erzeugung des Gasstromes wenigstens eine Turboverdichtervorrichtung zu verwenden.It is expedient to at least generate the gas stream to use a turbocompressor device.

Das genannte technische Ergebnis wird ebenfalls dadurch erreicht, daß bei einer Vorrichtung zur Erzeugung eines Gas-Tröpfchen-Strahls, die Systeme für eine Zufuhr einer Flüssigkeit und eines Gases und eine gasdynamische Düse mit einer Kammer zur Vermischung der Flüssigkeit und des Gases umfaßt, erfindungsgemäß die Länge L eines profilierten Kanals der Düse nach folgender Bedingung gewählt wird: L ≥ 5dkr,
wobei dkr der Durchmesser des kritischen Querschnitts der Düse ist .The technical result mentioned is also achieved in that, in a device for generating a gas droplet jet, which comprises systems for supplying a liquid and a gas and a gas dynamic nozzle with a chamber for mixing the liquid and the gas, according to the invention Length L of a profiled channel of the nozzle is selected according to the following condition: L ≥ 5d kr ,
where d kr is the diameter of the critical cross section of the nozzle.

Zur Komprimierung (Verdichtung) des Gas-Tröpfchen-Strahls kann eine Ringdüse verwendet werden.Can compress (compress) the gas droplet jet an annular nozzle can be used.

Als Flüssigkeit kann in der Vorrichtung Wasser verwendet werden. Water can be used as the liquid in the device become.

Es ist zweckmäßig, daß das System der Gaszufuhr wenigstens eine Turboverdichtervorrichtung mit einer Austrittseinrichtung umfaßt, die mit einem Einlaß der gasdynamischen Düse in Verbindung steht.It is appropriate that the system of gas supply at least a turbocompressor device with an outlet device comprises, which is connected to an inlet of the gas dynamic nozzle stands.

Die Vorrichtung kann bei Bedarf mobil ausgelegt werden, wofür sie mit einem Fortbewegungsmittel versehen wird.The device can be designed to be mobile, for what purpose it is provided with a means of transportation.

Das genannte technische Ergebnis kann außerdem dadurch erreicht werden, daß bei einer Düse zur Erzeugung des Gas-Tröpfchen-Strahls, die einen profilierten Kanal und eine Kammer zur Vermischung von Flüssigkeit und Gas umfaßt, erfindungsgemäß die Länge L des profilierten Kanals der Düse nach folgender Bedingung gewählt wird: L ≥ 5dkr,
wobei dkr der Durchmesser des kritischen Querschnitts der Düse ist.The technical result mentioned can also be achieved in that, in the case of a nozzle for generating the gas-droplet jet, which comprises a profiled channel and a chamber for mixing liquid and gas, the length L of the profiled channel of the nozzle according to the following condition is selected: L ≥ 5d kr ,
where d kr is the diameter of the critical cross section of the nozzle.

Zur Komprimierung des Gas-Tröpfchen-Strahls ist es zweckmäßig, eine Ringdüse zu verwenden.To compress the gas droplet jet, it is advisable to to use a ring nozzle.

Kurze Beschreibung der FigurenBrief description of the figures

Die Erfindung wird nun anhand konkreter Ausführungsbeispiele und der Figuren näher erläutert, wobei

Fig. 1
ein allgemeines Funktionsschema der Vorrichtung zeigt;
Fig. 2
eine Düse mit einer Mischkammer (schematische Darstellung) zeigt;
Fig. 3
als andere Ausführungsform der Düse eine Ringdüse mit Mischkammer (schematische Darstellung) zeigt.
The invention will now be explained in more detail with reference to specific exemplary embodiments and the figures, wherein
Fig. 1
shows a general functional diagram of the device;
Fig. 2
shows a nozzle with a mixing chamber (schematic representation);
Fig. 3
as another embodiment of the nozzle shows an annular nozzle with a mixing chamber (schematic representation).

Bevorzugte Ausführungsformen der ErfindungenPreferred embodiments of the inventions

Das vorgeschlagene Verfahren zur Erzeugung eines Gas-Tröpfchen-Strahls besteht darin, daß ein Gasstrom in einer Gas-Tröpfchen-Düse beschleunigt, in den Gasstrom während seiner Beschleunigung ein disperser Flüssigkeitsstrom gegeben und in der Düse der entstandene Zweiphasenstrom beschleunigt wird. Der Gasdruck P am Einlaß der Düse und die relative Konzentration g der Flüssigkeit in dem Zweiphasenstrom werden nach folgenden Bedingungen gewählt: P*g ≤ 5,7*108Pa,   P ≥ 5*105Pa, wobei g = Gf/Gg ;

Gf -
Massendurchsatz der Flüssigkeit;
Gg -
Massendurchsatz des Gases.
The proposed method for generating a gas-droplet jet consists in accelerating a gas stream in a gas-droplet nozzle, adding a disperse liquid stream to the gas stream during its acceleration and accelerating the resulting two-phase stream in the nozzle. The gas pressure P at the inlet of the nozzle and the relative concentration g of the liquid in the two-phase flow are selected according to the following conditions: P * g ≤ 5.7 * 10 8th Pa, P ≥ 5 * 10 5 Pa, in which g = G f /G G ;
G f -
Mass flow rate of the liquid;
G g -
Mass flow of gas.

Als Flüssigkeit kann Wasser verwendet werden.Water can be used as the liquid.

Es ist zweckmäßig, zur Erzeugung des Gasstromes wenigstens eine Turboverdichtervorrichtung zu verwenden.It is expedient to at least generate the gas stream to use a turbocompressor device.

Als Flüssigkeit wird Wasser verwendet.Water is used as the liquid.

Zur Erzeugung des Gasstromes wird eine Turboverdichtervorrichtung verwendet.A turbocompressor device is used to generate the gas flow used.

Es ist anzumerken, daß zur Erzeugung des Gasstromes auch mehrere Turboverdichtervorrichtungen verwendet werden können.It should be noted that there are also several for generating the gas stream Turbo compressor devices can be used.

Es folgt die Beschreibung der Vorrichtung zur Erzeugung eines Gas-Tröpfchen-Strahls, mit deren Hilfe das erfindungsgemäße Verfahren verwirklicht wird.The following is the description of the device for generating a Gas droplet jet, with the help of the invention Procedure is realized.

Die vorgeschlagene Vorrichtung umfaßt ein System 1 (Fig. 1) zur Flüssigkeitszufuhr, ein System 2 zur Gaszufuhr, eine gasodynamische Düse 4 mit einer Kammer 3 zur Vermischung von Flüssigkeit und Gas. Die Länge eines profilierten Kanals 7 (Fig. 2 und 3) der Düse wurde nach der folgenden Bedingung gewählt: L ≥ 5dkr,
wobei dkr der Durchmesser des kritischen Querschnitts der Düse ist.The proposed device comprises a system 1 (FIG. 1) for supplying liquid, a system 2 for supplying gas, a gas-dynamic nozzle 4 with a chamber 3 for mixing liquid and gas. The length of a profiled channel 7 (FIGS. 2 and 3) of the nozzle was chosen according to the following condition: L ≥ 5d kr ,
where d kr is the diameter of the critical cross section of the nozzle.

In der beschriebenen Ausführungsform wird als Flüssigkeit Wasser verwendet, es ist jedoch anzumerken, daß als Flüssigkeit auch andere Stoffe verwendet werden können, abhängig von der konkreten Anwendung der Vorrichtung.In the described embodiment, the liquid Water is used, but it should be noted that as a liquid other fabrics can be used depending on the specific application of the device.

Das System 2 der Gaszufuhr umfaßt eine Turboverdichtervorrichtung, deren Austrittseinrichtung mit dem Einlaß der gasdynamischen Düse 4 in Verbindung steht.The system 2 of gas supply comprises a turbocompressor device, whose outlet device with the inlet of the gas dynamic Nozzle 4 communicates.

Bei der beschriebenen Ausführungsform wird eine Turboverdichtervorrichtung verwendet, es ist jedoch anzumerken, daß es mehrere solcher Vorrichtungen sein können.In the described embodiment, a turbocompressor device used, but it should be noted that it can be several such devices.

Die Vorrichtung umfaßt außerdem ein System 5 (Fig. 1) zur Steuerung der Verstellung der Düse und ein Transportmittel 6 für eine Verlagerung, auf dem die Systeme und die Bestandteile der Vorrichtung angeordnet sind.The device also includes a system 5 (Fig. 1) for Control of the adjustment of the nozzle and a means of transport 6 for a relocation on which the systems and components the device are arranged.

Die in Fig. 3 abgebildete Ausführungsform der Vorrichtung ist identisch mit der Ausführungsform der Vorrichtung von Fig. 2. Der Unterschied liegt in der Ausführungsform des profilierten Kanals 7 der Düse in Ringform (Fig. 3). Bei Verwendung der Ringdüse 4 wird im Kanal ein Zentralkörper 10 angeordnet.The embodiment of the device depicted in FIG. 3 is identical to the embodiment of the device of FIG. 2. The difference lies in the embodiment of the profiled Channel 7 of the nozzle in the form of a ring (Fig. 3). When using the Ring nozzle 4, a central body 10 is arranged in the channel.

Im folgenden wird die Düse zur Erzeugung eines Gas-Tröpfchen-Strahls beschrieben, mit deren Hilfe das erfindungsgemäße Verfahren verwirklicht wird. The following is the nozzle for generating a gas droplet jet described, with the help of the invention Procedure is realized.

Die Düse 4 umfaßt eine Kammer 3 zur Vermischung von Flüssigkeit und Gas (Fig. 2), die mit Vorrichtungen 8 zur Flüssigkeitszufuhr und einer Vorrichtung 9 zur Gaszufuhr versehen ist, sowie einen profilierten Kanal 7.The nozzle 4 comprises a chamber 3 for mixing liquid and gas (Fig. 2) with devices 8 for supplying liquid and a device 9 for gas supply and a profiled channel 7.

Die Länge des profilierten Kanals der Düse wurde nach folgender Bedingung gewählt: L ≥ 5dkr, wobei dkr der Durchmesser des kritischen Querschnitts der Düse ist.The length of the profiled channel of the nozzle was chosen according to the following condition: L ≥ 5d kr , where d kr is the diameter of the critical cross section of the nozzle.

Die in Fig. 3 abgebildete Ausführungsform der Düse ist identisch mit der Ausführungsform der Düse aus Fig. 2.The embodiment of the nozzle shown in FIG. 3 is identical with the embodiment of the nozzle from FIG. 2.

Der Unterschied besteht darin, daß der profilierte Kanal 7 der Düse 4 in Ringform ausgebildet ist und in ihm ein Zentralkörper 10 angeordnet wird (dieser Düsentyp ist jedem Fachmann auf dem Gebiet der Gasdynamik bekannt).The difference is that the profiled channel 7 of the Nozzle 4 is formed in a ring shape and a central body in it 10 is arranged (this type of nozzle is up to any person skilled in the art known in the field of gas dynamics).

Die oben genannten Bedingungen der Wahl des Gasdrucks und der relativen Konzentration der Flüssigkeit im Zweiphasenstrom für das vorgeschlagene Verfahren, sowie die Bedingungen für die Wahl der Länge der gasodynamische Düse für die vorgeschlagenen Vorrichtung und Düse werden auf der Grundlage folgender Faktoren festgelegt, die Einfluß auf die Effektivität der Beschleunigung des Gas-Tröpfchen-Strahls und seine Geschwindigkeit haben, die die Reichweite des Strahls bestimmt.The above conditions of choice of gas pressure and relative concentration of the liquid in the two-phase flow for the proposed procedure, as well as the conditions for the Choice of the length of the gasodynamic nozzle for the proposed The device and nozzle are based on the following factors set the influence on the effectiveness of acceleration of the gas droplet jet and its velocity that determine the range of the beam.

Der Maximalwert des Gasdrucks und der relativen Flüssigkeitskonzentration wird aus der Bedingung der maximalen Packungsdichte der Flüssigkeitsteilchen im Gasstrom gewählt, bei der die Bildung einer Tröpfchen-Flüssigphase im Gas möglich ist. Die genannte Bedingung wird durch die folgende Formel bestimmt: Pmax ≤ π*R*T*ρf/(1-π/6)*gmax; wobei π=3,1416;

R -
Gaskonstante der Gasphase des Zweiphasenstroms (für Luft R=287J/kg*K);
T -
Gastemperatur (für die Bedingungen der Verwendung der Vorrichtung T=300K);
ρf -
Flüssigkeitsdichte (Wasser ρf=1000kg/m2);
gmax= Gf/Gg -
maximale relative Konzentration der Flüssigkeit;
Gf -
Massendurchsatz der Flüssigkeit;
Gg -
Massendurchsatz des Gases.
The maximum value of the gas pressure and the relative liquid concentration is chosen from the condition of the maximum packing density of the liquid particles in the gas stream, at which the formation of a droplet liquid phase in the gas is possible. This condition is determined by the following formula: P Max ≤ π * R * T * ρ f / (1-π / 6) * g Max ; where π = 3.1416;
R -
Gas constant of the gas phase of the two-phase flow (for air R = 287J / kg * K);
T -
Gas temperature (for the conditions of use of the device T = 300K);
ρ f -
Liquid density (water ρ f = 1000kg / m 2 );
g max = G f / G g -
maximum relative concentration of the liquid;
G f -
Mass flow rate of the liquid;
G g -
Mass flow of gas.

Berücksichtigt man die realen Grenzbedingungen während der Anwendung der Erfindung kann die genannte Bedingung wie folgt lauten: gmax*Pmax=5,7*108Pa.Taking into account the real boundary conditions during the application of the invention, the condition mentioned can be as follows: G Max * P Max = 5.7 * 10 8th Pa .

Aus dieser Bedingung ist ersichtlich, daß zur Verwirklichung der Erfindung die Werte von P und g aus folgender Bedingung gewählt werden müssen: P*g ≤ 5,7*108Pa. In diesem Fall kann in der gasdynamischen Düse der Zweiphasenstrom, bestehend aus der Tröpfchen-Flüssigphase und einem Trägergas, bis zur erforderlichen Geschwindigkeit beschleunigt werden.From this condition it can be seen that in order to implement the invention the values of P and g must be chosen from the following condition: P * g ≤ 5.7 * 10 8 Pa. In this case, the two-phase flow, consisting of the droplet liquid phase and a carrier gas, can be accelerated to the required speed in the gas dynamic nozzle.

Gleichzeitig wird die erforderliche Geschwindigkeit des Gas-Tröpfchen-Strahls, bei der eine Reichweite von nicht weniger als 50 m erreicht wird, durch den Druckwert P beim Eintritt in die gasdynamische Düse bestimmt: P ≥ 5*105Pa.At the same time, the required velocity of the gas droplet jet, at which a range of not less than 50 m is reached, is determined by the pressure value P when entering the gas dynamic nozzle: P ≥ 5 * 10 5 Pa.

Beim genannten Druckwert ist ein Druckabfall in der Düse gewährleistet:

Figure 00080001
wobei P der Ruhedruck am Einlaß der Düse und Pa der atmosphärische Druck ist.At the pressure value mentioned, a pressure drop in the nozzle is guaranteed:
Figure 00080001
where P is the rest pressure at the inlet of the nozzle and P a is the atmospheric pressure.

Wie Berechnungen zeigten, ist bei diesen Druckwerten am Einlaß der Düse eine Beschleunigung des Zweiphasenstroms (gasförmigflüssig) bis zu einer Geschwindigkeit möglich, die, unter Berücksichtigung des realen Wirkungsgrades der Düse, über 60 m/s liegt. Die erreichten Geschwindigkeitswerte des Gas-Flüssigkeit-Gemisches liegen mehr als zweimal höher als die höchsten Geschwindigkeitswerte eines Flüssigkeitsstrahls, die mit den bisherigen Mitteln bei gleichen Flüssigkeitsparametern erreicht werden können.As calculations have shown, these pressure values are at the inlet the nozzle accelerates the two-phase flow (gaseous liquid) possible up to a speed that, taking into account the real efficiency of the nozzle, over 60 m / s lies. The speed values of the gas-liquid mixture reached are more than twice the highest Velocity values of a liquid jet, which with the previous means achieved with the same liquid parameters can be.

Im folgenden wird das Funktionsprinzip der vorgeschlagenen Vorrichtung und der Düse ausführlich beschrieben, das auf dem vorgeschlagenen Verfahren basiert.The following is the principle of operation of the proposed Device and the nozzle described in detail on the proposed method based.

Die Vorrichtung wird mit Hilfe des Transportmittels 6 (z.B. eines Automobils) in die Ausgangsposition gebracht. Die Düse 4 wird mittles Steuerung des Systems 5 zur Verstellungssteuerung der Düse in Richtung eines Objektes gerichtet, dem der Gas-Tröpfchen-Strahl zugeführt werden soll.The device is operated using the means of transport 6 (e.g. of an automobile) brought into the starting position. The nozzle 4 becomes mean control of the system 5 for adjustment control the nozzle is directed towards an object, which is the gas droplet jet should be fed.

Die einen Teil des Systems 2 der Gaszufuhr bildende Turboverdichtervorrichtung (nicht in den Zeichnungen gezeigt) wird eingeschaltet.The turbocompressor device forming part of the system 2 of the gas supply (not shown in the drawings) switched on.

Der beschleunigte Luftstrom aus der Austrittseinrichtung der Kraftmaschine wird in die Vorrichtung 9 zur Gaszufuhr der Mischkammer 3 geleitet, wo der Zweiphasenstrom entsteht.The accelerated air flow from the outlet of the Engine is in the device 9 for gas supply Mixing chamber 3 passed, where the two-phase flow arises.

Wasser wird in die Mischkammer 3 durch Vorrichtungen 8 zur Flüssigkeitszufuhr in Form einzelner Strahlen eingespritzt, die sich mit der anströmenden Luft vermischen, wodurch ein Gas-Tröpfchen-Strom entsteht. Zur gleichmäßigen Verteilung des Wassers in der Mischkammer 3 können als Vorrichtungen zur Flüssigkeitszufuhr Strahlendüsen verwendet werden.Water is in the mixing chamber 3 through devices 8 for Injection of liquid in the form of individual jets, which mix with the incoming air, creating a Stream of gas droplets is created. For even distribution of the Water in the mixing chamber 3 can be used as devices for Fluid jets are used.

Der in der Mischkammer 3 bei oben genannten Parametern entstandene Zweiphasenstrom wird im profilierten Kanal 7 beschleunigt. The one created in the mixing chamber 3 with the above parameters Two-phase current is accelerated in the profiled channel 7.

Durch die Verwendung der Ringdüse 4 mit dem Zentralkörper 10 kann der Gas-Tröpfchen-Strahl bei relativ gleichmäßiger Verteilung der Wassertropfen im Strahlenquerschnitt kompaktiert (komprimiert) werden.By using the ring nozzle 4 with the central body 10 the gas-droplet jet can be distributed relatively evenly the water drop compacted in the cross-section of the beam (compressed).

Die Maximalwerte des Luftdrucks am Einlaß der Düse und der relativen Konzentration des Wassers in dem Zweiphasenstrom werden aus Bedingungen der größten Packungsdichte der Wasserteilchen im Luftstrom gewählt: P*g ≤ 5,7*108Pa, wobei P der Luftdruck an der Eintrittsöffnung der Düse und g die relative Konzentration des Wassers im Zweiphasenstrom ist.The maximum values of the air pressure at the inlet of the nozzle and the relative concentration of the water in the two-phase flow are chosen from conditions of the greatest packing density of the water particles in the air flow: P * g ≤ 5.7 * 10 8 Pa, where P is the air pressure at the inlet opening of the nozzle and g is the relative concentration of water in the two-phase stream.

Außerdem muß der Luftdruck am Einlaß der Düse über 5*105Pa liegen, um die erforderliche (über 50 m) Reichweite des Gas-Tröpfchen-Strahls zu erreichen.In addition, the air pressure at the inlet of the nozzle must be above 5 * 10 5 Pa in order to achieve the required (over 50 m) range of the gas droplet jet.

Bei der vorliegenden Ausführungsform des Erfindungsgegenstandes werden die genannten Parameter wie folgt gewählt:

P =
5,5*105Pa;
g = Gf/Gg =
4,9 - relative Konzentration des Wassers;
Gf =
26kg/s - Massendurchsatz der Flüssigkeit;
Gg =
5,3kg/s - Massendurchsatz der Luft;
T =
298K - Temperatur des Zweiphasenstroms;
L =
1500mm - Düsenlänge;
dkr =
120mm - Durchmesser des kritischen Querschnitts der Düse;
D =
50µm - mittlerer Tröpfchendurchmesser des Wassers im Luftstrom.
In the present embodiment of the subject matter of the invention, the parameters mentioned are selected as follows:
P =
5.5 * 10 5 Pa;
g = G f / G g =
4.9 - relative concentration of water;
G f =
26kg / s - mass flow rate of the liquid;
G g =
5.3kg / s - mass flow of air;
T =
298K - temperature of two-phase current;
L =
1500mm - nozzle length;
d kr =
120mm - diameter of the critical cross section of the nozzle;
D =
50µm - mean droplet diameter of the water in the air stream.

Die erhaltenen Ergebnisse bestätigen, daß ein Zweiphasenstrom, dessen Parameter nach den oben genannten Bedingungen gewählt werden, in der gasdynamischen Düse bis zu einer Geschwindigkeit beschleunigt wird, bei der die Reichweite des Gas-Tröpfchen-Strahls 65m beträgt. The results obtained confirm that a two-phase current, whose parameters are selected according to the conditions mentioned above be in the gas dynamic nozzle up to a speed is accelerated at the range of the gas droplet jet Is 65m.

Somit ist die Reichweite des Gas-Tröpfchen-Strahls beim Einsetzen des Erfindungsgegenstandes ungefähr 2,5 Mal größer als die maximale Reichweite eines Flüssigkeitsstrahls bei gleichem Flüssigkeitsverbrauch und gleichem Anfangsdruck.So the range of the gas droplet jet is on insertion of the subject of the invention about 2.5 times larger than the maximum range of a liquid jet for the same Fluid consumption and the same initial pressure.

Die vorliegenden Daten bestätigen die Möglichkeit der Verwirklichung des vorgeschlagenen Verfahrens zur Erzeugung eines Gas-Tröpfchen-Strahls, sowie der Vorrichtung und der Düse, mit denen das Verfahren verwirklicht wird, und die Möglichkeit des Erreichens der technischen Aufgabe, die im Erhöhen der Reichweite des Gas-Tröpfchen-Strahls besteht.The available data confirm the possibility of realization the proposed method for generating a Gas droplet jet, as well as the device and the nozzle, with to whom the procedure is carried out and the possibility of Achieve the technical task in increasing the range of the gas droplet jet.

Industrielle AnwendbarkeitIndustrial applicability

Das Verfahren, die Vorrichtung und die Düse, die zur Erzeugung des erfindungsgemäßen Gas-Tröpfchen-Strahls vorgesehen sind, können in unterschiedlichen Industriezweigen eingesetzt werden, in denen die Generierung eines Gas-Tröpfchen-Strahls mit großer Reichweite erforderlich ist.The process, the device and the nozzle used to produce of the gas droplet jet according to the invention are provided, can be used in different industries, in which the generation of a gas droplet jet with long range is required.

Wesentlich effektiver ist der Einsatz der Erfindung in der Feuerlöschtechnik bei der Brandbekämpfung in schwer zugänglichen Feuerherden und Objekten, sowie in der Landwirtschaft beim Bewässern des Bodens.The use of the invention in the Fire extinguishing technology in fire fighting in difficult to access areas Fires and objects, as well as in agriculture when watering the soil.

Bei der Beschreibung der genannten Ausführungsformen der Verwirklichung der Erfindung wurde zur Klarheit konkrete Terminologie verwendet. Die Erfindung beschränkt sich jedoch nicht auf die übliche Terminologie, und es sollte beachtet werden, daß jeder dieser Termini äquivalente Termini einschließt, die zur Lösung derselben Aufgaben verwendet werden.In the description of the mentioned embodiments of the realization The invention has concrete terminology for clarity used. However, the invention is not restricted on the usual terminology and it should be noted that each of these terms includes equivalent terms that can be used to solve the same tasks.

Obwohl die vorgeschlagene Erfindung mit Bezug auf die bevorzugte Ausführungsform beschrieben wurde, ist es für Fachleute auf diesem Gebiet klar, daß Änderungen und andere Ausführungsformen vorkommen können, ohne von der Grundidee und dem Erfindungsgegenstand abzuweichen. Diese Änderungen und Ausführungsformen werden als nicht über den Schutzumfang der vorgeschlagenen Erfindung hinausgehend und als in Übereinstimmung mit den vorgeschlagenen Patentansprüchen angesehen.Although the proposed invention is related to the preferred Embodiment has been described, it is for those skilled in the art clear in this area that changes and other embodiments can occur without the basic idea and the subject matter of the invention to deviate. These changes and embodiments are considered to be beyond the scope of the proposed Invention beyond and as in accordance with viewed the proposed claims.

Claims (10)

Verfahren zur Erzeugung eines Gas-Tröpfchen-Strahls, bei dem ein Gasstrom in einer gasdynamischen Düse beschleunigt wird, ein Dispersionsstrom einer Flüssigkeit in den Gasstrom während seiner Beschleunigung zugeführt wird und der entstandene Zweiphasenstroms in der Düse beschleunigt wird, dadurch gekennzeichnet, daß der Druck P am Einlaß der Düse und die relative Konzentration g der Flüssigkeit in dem Zweiphasenstrom nach folgenden Bedingungen gewählt werden: P*g ≤ 5,7*108Pa, P ≥ 5*105Pa, wobei g = Gf/Gg ;
Gf -
Massendurchsatz der Flüssigkeit;
Gg -
Massendurchsatz des Gases.
Method for generating a gas droplet jet, in which a gas stream is accelerated in a gas dynamic nozzle, a dispersion stream of a liquid is fed into the gas stream during its acceleration and the resulting two-phase stream is accelerated in the nozzle, characterized in that the pressure P at the inlet of the nozzle and the relative concentration g of the liquid in the two-phase stream are selected according to the following conditions: P * g ≤ 5.7 * 10 8th Pa, P ≥ 5 * 10 5 Pa, in which g = G f /G G ;
G f -
Mass flow rate of the liquid;
G g -
Mass flow of gas.
Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß als Flüssigkeit Wasser verwendet wird.A method according to claim 1, characterized in that as Liquid water is used. Verfahren nach Ansprüchen 1 oder 2, dadurch gekennzeichnet, daß der Gasstrom mit wenigstens einer Turboverdichtervorrichtung erzeugt wird.Method according to claims 1 or 2, characterized in that that the gas flow with at least one turbocompressor device is produced. Vorrichtung zur Erzeugung eines Gas-Tröpfchen-Strahls, mit Systemen (1 und 2) für die Zufuhr von Flüssigkeit und Gas und einer gasdynamischen Düse (4), eine Kammer (3) zur Vermischung von Flüssigkeit und Gas aufweist, dadurch gekennzeichnet, daß die Länge L eines profilierten Kanals der Düse nach folgender Bedingung gewählt wird: L ≥ 5dkr, wobei dkr der Durchmesser des kritischen Querschnitts der Düse ist. Device for generating a gas droplet jet, with systems (1 and 2) for the supply of liquid and gas and a gas dynamic nozzle (4), has a chamber (3) for mixing liquid and gas, characterized in that the Length L of a profiled channel of the nozzle is selected according to the following condition: L ≥ 5d kr , where d kr is the diameter of the critical cross section of the nozzle. Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, daß die Düse ringförmig ausgebildet ist.Apparatus according to claim 4, characterized in that the nozzle is annular. Vorrichtung nach Anspüchen 4 oder 5, dadurch gekennzeichnet, daß als Flüssigkeit Wasser verwendet wird.Device according to claims 4 or 5, characterized in that that water is used as the liquid. Vorrichtung nach einem der Ansprüche 4-6, dadurch gekennzeichnet, daß das Zufuhrsystem wenigstens eine Turboverdichtervorrichtung umfaßt, deren Austrittseinrichtung mit dem Einlaß der gasdynamischen Düse in Verbindung steht.Device according to one of claims 4-6, characterized in that that the delivery system has at least one turbocompressor device includes whose outlet device with communicates with the inlet of the gas dynamic nozzle. Vorrichtung nach Anspruch 7, dadurch gekennzeichnet, daß sie mit einem Fortbewegungsmittel (6) versehen ist.Apparatus according to claim 7, characterized in that it is provided with a means of transportation (6). Düse zur Erzeugung das Gas-Tröpfchen-Strahls, mit einem profilierten Kanal (7) und einer Kammer (3) zur Vermischung von Flüssigkeit und Gas, dadurch gekennzeichnet, daß die Länge L des profilierten Kanals (7) der Düse nach folgender Bedingung gewählt wird: L ≥ 5dkr, wobei: dkr -Durchmesser des kritischen Querschnitts der Düse.Nozzle for generating the gas droplet jet, with a profiled channel (7) and a chamber (3) for mixing liquid and gas, characterized in that the length L of the profiled channel (7) of the nozzle is selected according to the following condition : L ≥ 5d kr , where: d kr -diameter of the critical cross section of the nozzle. Düse nach Anspruch 9, dadurch gekennzeichnet, daß ihr profilierter Kanal (7) ringförmig ausgebildet ist.Nozzle according to claim 9, characterized in that you profiled channel (7) is annular.
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RU2631277C1 (en) * 2016-05-27 2017-09-20 Олег Савельевич Кочетов Vortex atomizer by kochetov
RU2650124C1 (en) * 2017-02-22 2018-04-09 Олег Савельевич Кочетов Pneumatic nozzle
RU2645984C1 (en) * 2017-03-13 2018-02-28 Олег Савельевич Кочетов Pneumatic nozzle
CN108672119B (en) * 2018-07-04 2024-02-13 浙江精勇精锻机械有限公司 Automatic spraying device for release agent
WO2021204306A1 (en) * 2020-04-10 2021-10-14 Jetex Innovation S.R.O. Fire extinguishing equipment with fire nozzle
FR3115714B1 (en) 2020-10-30 2024-01-12 Etat Francais Represente Par Le Prefet De Police Agissant Au Nom Et Pour Le Compte De La Ville De Pa DEVICE FOR GENERATING A TWO-PHASIC FLUID JET

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WO2001076764A1 (en) * 2000-04-11 2001-10-18 Chrobak Julius Equipment for increasing the carrying radius of a continuous aerosol stream
US9004375B2 (en) 2004-02-26 2015-04-14 Tyco Fire & Security Gmbh Method and apparatus for generating a mist
US9010663B2 (en) 2004-02-26 2015-04-21 Tyco Fire & Security Gmbh Method and apparatus for generating a mist
US10507480B2 (en) 2004-02-26 2019-12-17 Tyco Fire Products Lp Method and apparatus for generating a mist
US9931648B2 (en) 2006-09-15 2018-04-03 Tyco Fire & Security Gmbh Mist generating apparatus and method
WO2011099900A1 (en) * 2010-02-15 2011-08-18 Lamie Saif Fluid ejector
WO2016094079A1 (en) * 2014-12-12 2016-06-16 General Electric Company System and method for conditioning flow of a wet gas stream

Also Published As

Publication number Publication date
WO1998001231A1 (en) 1998-01-15
DE59705677D1 (en) 2002-01-17
EP0911082A4 (en) 2000-07-26
ATE209970T1 (en) 2001-12-15
ES2169406T3 (en) 2002-07-01
EP0911082B1 (en) 2001-12-05
RU2107554C1 (en) 1998-03-27
DK0911082T3 (en) 2002-02-25
PT911082E (en) 2002-03-28

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