EP0839556A2 - Apparatus for the generation and delivery of directed media flows - Google Patents

Apparatus for the generation and delivery of directed media flows Download PDF

Info

Publication number
EP0839556A2
EP0839556A2 EP97118785A EP97118785A EP0839556A2 EP 0839556 A2 EP0839556 A2 EP 0839556A2 EP 97118785 A EP97118785 A EP 97118785A EP 97118785 A EP97118785 A EP 97118785A EP 0839556 A2 EP0839556 A2 EP 0839556A2
Authority
EP
European Patent Office
Prior art keywords
combustion chamber
water
nozzle
injection head
downstream
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.)
Withdrawn
Application number
EP97118785A
Other languages
German (de)
French (fr)
Other versions
EP0839556A3 (en
Inventor
Franz Dipl.-Ing. Grafwallner
Helmuth Dr.-Ing. Peller
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mercedes Benz Group AG
Original Assignee
DaimlerChrysler AG
Daimler Benz AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by DaimlerChrysler AG, Daimler Benz AG filed Critical DaimlerChrysler AG
Publication of EP0839556A2 publication Critical patent/EP0839556A2/en
Publication of EP0839556A3 publication Critical patent/EP0839556A3/en
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • 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
    • A62C3/0292—Fire prevention, containment or extinguishing specially adapted for particular objects or places for area conflagrations, e.g. forest fires, subterranean fires by spraying extinguishants directly into the fire
    • 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

Definitions

  • the invention relates to a device for generating and dispensing directed media flows according to the preamble of patent claim 1.
  • the exhaust gas jet from a turbo air jet engine is used as a carrier for the extinguishing agent.
  • the extinguishing agent such as water, foam or powder, is introduced into the exhaust gas jet downstream of the engine nozzle and mixed with it. It is accelerated to the jet speed and transported to the fire site relatively precisely.
  • Fire engines “are correspondingly moveable, ie adjustable, arranged on off-road chassis. See also the article Extinguishing with engines "in the Süd Weg Engineering of October 22, 1996.
  • Turbo jet engines are relatively voluminous, complicated, expensive and maintenance-intensive engines with a large number of moving parts. From the start to full performance development, they need a period of up to several minutes. They are sensitive to foreign bodies and dirt sucked in from the environment. The state of their surrounding atmosphere (air composition, temperature etc.) can have a negative impact on their starting and operating behavior.
  • Another problem that is currently being investigated is the optimal admixture of the extinguishing agent to the free jet, i.e. downstream of the engine nozzle.
  • the object of the invention is to provide a device for generating and dispensing directional media streams with the aid of an energy-rich jet serving as a carrier, which can be used in a variety of ways and is particularly suitable for fire fighting and prevention, which is relatively compact, simple, robust, reliable, low-maintenance and inexpensive, which is ready for use in the shortest possible time, and which enables effective mixing and targeted application of different types of media in areas that are difficult to access or at risk.
  • the design adopted from rocket technology enables a very compact and robust design, largely without moving components, which has a very positive effect on the acquisition and maintenance costs.
  • the full beam power is reached just a few seconds after starting.
  • the admixing of the respectively required Media, such as fire water, foam or powder, are optionally taken before, in or after the nozzle by pressure or suction.
  • the nozzle is designed to produce a stable, directional jet with high kinetic energy and delivery capacity.
  • This shows a schematic representation of a semi-longitudinal section through a device for generating and dispensing directed media streams with water vapor as the carrier jet.
  • the essential elements of the device 1 are the combustion chamber 2 with the injection head 5, the mixing chamber 3 and the nozzle 4.
  • the hydrogen used as the fuel and the oxygen used as the oxidizer are separated from one another in a gaseous state (GH 2 , GO 2 ) in a respective distribution space 6, 7 conveyed and flow into the combustion chamber 2 via a plurality of injection elements 8.
  • the injection elements 8 can be designed, for example, according to the coaxial principle.
  • the fuels mixed with one another when entering the combustion chamber 2 are ignited by means of a device (not shown), after which the combustion process continues as long as the fuel supply is maintained.
  • the combustion should proceed as stoichiometrically as possible, ie completely, so that only water vapor (gas) is produced as the combustion product.
  • cooling liquid preferably water (H 2 O)
  • the heated cooling water can be introduced partially or completely via the admixing device 10 into the mixing chamber 3, where it is mixed with the exhaust gas (exhaust steam) from the combustion chamber 2.
  • the flow paths shown with the valves 14, 15 and 18 also make it possible to mix the water supplied to the admixing device 10 with other media, for example with an extinguishing foam additive. It is thus also possible to keep the cooling water flow completely away from the admixing device 10.
  • a further admixing device which opens into the interior of the mixing chamber 3, is designated by 11, the inflow of which is controlled by a valve 16, and which is used for a further medium, e.g. Dry powder, can be designed.
  • Another admixing device 13 with valve 19 opens into the nozzle neck, where passive admixing is possible due to the negative pressure.
  • admixing within the device is more effective than outside.
  • a further admixing device 12 with valve 17 is shown by way of example, which enables admixing to the free jet downstream of the nozzle 4, the jet edge being dash-dotted and designated by 20.
  • the nozzle 4 has the task of a defined directable jet with high kinetic energy, i.e. with a long range.
  • subsonic, sonic and supersonic geometries can be used. It can also be useful to provide the device 1 with different types of interchangeable nozzles in order to be able to vary the shape and range of the jet.
  • the device 1 is, apart from fire fighting, also suitable for other purposes. For example, it is possible to cool surfaces of buildings and systems over longer distances in the sense of fire prevention.
  • suitable, possibly solidifying media / substances e.g. cement sludge
  • pollutants can be coated and shielded, and leaks sealed.
  • the coating can also have an electrically insulating effect.
  • rocket motors can be used, e.g. with solid and fluid fuels and a chemical reaction (combustion, decomposition) or with a heated support, especially water / steam.
  • a chemical reaction combustion, decomposition
  • a heated support especially water / steam.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Ecology (AREA)
  • Forests & Forestry (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
  • Jet Pumps And Other Pumps (AREA)
  • Nozzles (AREA)

Abstract

The device comprises a rocket motor independent of the ambient atmosphere and incorporating a combustion chamber (2), an injection head (5) and a nozzle (4). At least one device (10-13) is provided for active, pressure system, and-or passive, self aspirating system, mixture of media upstream and-or downstream of the nozzle (4). The rocket motor is driven by liquid and-or gas-form fuel. The combustion chamber with the injection head mixes and burns hydrogen and oxygen to form an output gas at least principally comprising steam. Downstream of the combustion chamber connects a mixture chamber (3) for the mixture of water and-or other medium to the output gas.

Description

Die Erfindung betrifft eine Vorrichtung zur Erzeugung und Ausbringung von gerichteten Medienströmen gemäß dem Oberbegriff des Patentanspruches 1.The invention relates to a device for generating and dispensing directed media flows according to the preamble of patent claim 1.

Die Bekämpfung von Großbränden, z.B. bei Flugzeugabstürzen, in petrochemischen Anlagen oder auf Ölfeldern, ist insbesondere wegen der auf große Entfernung wirksamen Strahlungshitze für Mensch und Material besonders schwierig und gefährlich. Ebenso kann eine schlechte Zugänglichkeit der Brandstelle, z.B. bei Hochhaus-, Tunnel- oder Waldbränden, die Bekämpfung stark erschweren oder unmöglich machen. Ein fundamentales Problem in solchen Fällen besteht darin, große Volumenströme des Löschmittels über größere Entfernungen gezielt durch die Luft zur Brandstelle zu befördern. Herkömmliche Löschschläuche sowie Monitore auf Land- und Wasserfahrzeugen gelangen hier oft an die Grenzen ihrer Leistungsfähigkeit. Von ungarischen bzw. russischen Fachleuten wurde daraufhin bereits vor Jahren ein neuartiges Löschsystem entwickelt, welches u.a. bei den brennenden Ölquellen in Kuwait nach dem Golfkrieg zum Einsatz gebracht wurde. Bei diesem System wird der Abgasstrahl eines Turboluftstrahltriebwerkes als Träger für das Löschmittel benutzt. Das Löschmittel, z.B. Wasser, Schaum oder Pulver wird stromabwärts der Triebwerksdüse in den Abgasstrahl eingebracht und mit diesem vermischt. Dabei wird es auf die Strahlgeschwindigkeit beschleunigt und relativ zielgenau zur Brandstelle befördert. Eines oder mehrere solcher

Figure imgb0001
Löschtriebwerke" sind entsprechend beweglich, d.h. richtbar, auf geländegängigen Fahrgestellen angeordnet. Siehe hierzu auch den Artikel
Figure imgb0001
Mit Triebwerken löschen" in der Süddeutschen Zeitung vom 22.10.1996.Fighting large fires, for example in the event of plane crashes, in petrochemical plants or in oil fields, is particularly difficult and dangerous because of the radiation heat that is effective at great distances for people and materials. Poor access to the fire site, for example in the case of high-rise buildings, tunnels or forest fires, can also make it very difficult or impossible to combat. A fundamental problem in such cases is to transport large volumes of the extinguishing agent through the air to the fire site over long distances. Conventional fire hoses and monitors on land and water vehicles often reach the limits of their performance. Hungarian and Russian experts developed a new extinguishing system years ago, which was used, among other things, in the burning oil wells in Kuwait after the Gulf War. In this system, the exhaust gas jet from a turbo air jet engine is used as a carrier for the extinguishing agent. The extinguishing agent, such as water, foam or powder, is introduced into the exhaust gas jet downstream of the engine nozzle and mixed with it. It is accelerated to the jet speed and transported to the fire site relatively precisely. One or more of them
Figure imgb0001
Fire engines "are correspondingly moveable, ie adjustable, arranged on off-road chassis. See also the article
Figure imgb0001
Extinguishing with engines "in the Süddeutsche Zeitung of October 22, 1996.

Diese Löscheinrichtungen weisen jedoch eine Reihe von Nachteilen auf.However, these quenchers have a number of disadvantages.

Turboluftstrahltriebwerke sind relativ voluminöse, komplizierte, teuere und wartungsintensive Kraftmaschinen mit einer Vielzahl von bewegten Teilen. Vom Start bis zur vollen Leistungsentwicklung benötigen sie eine Zeitspanne von bis zu mehreren Minuten. Sie sind empfindlich gegenüber aus der Umgebung angesaugten Fremdkörpern und Schmutz. Der Zustand ihrer Umgebungsatmosphäre (Luftzusammensetzung, Temperatur etc.) kann sich negativ auf ihr Start- und Betriebsverhalten auswirken. Ein weiteres Problem, welches derzeit untersucht wird, ist die optimale Zumischung des Löschmittels zum freien Düsenstrahl, d.h. stromabwärts der Triebwerksdüse.Turbo jet engines are relatively voluminous, complicated, expensive and maintenance-intensive engines with a large number of moving parts. From the start to full performance development, they need a period of up to several minutes. They are sensitive to foreign bodies and dirt sucked in from the environment. The state of their surrounding atmosphere (air composition, temperature etc.) can have a negative impact on their starting and operating behavior. Another problem that is currently being investigated is the optimal admixture of the extinguishing agent to the free jet, i.e. downstream of the engine nozzle.

Gegenüber diesen Nachteilen des Standes der Technik besteht die Aufgabe der Erfindung darin, eine Vorrichtung zur Erzeugung und Ausbringung von gerichteten Medienströmen mit Hilfe eines als Träger dienenden, energiereichen Strahles bereitzustellen, welche vielseitig einsetzbar, dabei insbesondere für die Brandbekämpfung und -verhütung geeignet ist, welche relativ kompakt, einfach, robust, betriebssicher, wartungsarm und preiswert ist, welche in kürzester Zeit einsatzbereit ist, und welche eine wirkungsvolle Zumischung und zielsichere Ausbringung verschiedenartiger Medien in schwer zugängliche bzw. gefährdete Bereiche ermöglicht.Compared to these disadvantages of the prior art, the object of the invention is to provide a device for generating and dispensing directional media streams with the aid of an energy-rich jet serving as a carrier, which can be used in a variety of ways and is particularly suitable for fire fighting and prevention, which is relatively compact, simple, robust, reliable, low-maintenance and inexpensive, which is ready for use in the shortest possible time, and which enables effective mixing and targeted application of different types of media in areas that are difficult to access or at risk.

Diese Aufgabe wird durch die im kennzeichnenden Teil des Hauptanspruches genannten Merkmale gelöst, in Verbindung mit den gattungsbildenden Merkmalen in dessen Oberbegriff.This object is achieved by the features mentioned in the characterizing part of the main claim, in conjunction with the generic features in the preamble.

Durch die Verwendung eines beliebigen, von der Umgebungsatmosphäre unabhängigen Raketenmotors mit chemisch bzw. physikalisch erzeugtem Strahl entfallen negative Einwirkungen der Einsatzumgebung weitestgehend. Die aus der Raketentechnik übernommene Bauweise ermöglicht dank der hohen Energiedichte eine sehr kompakte und robuste Ausführung weitgehend ohne bewegte Bauelemente, was sich sehr positiv auf die Anschaffungs- und Unterhaltskosten auswirkt. Die volle Strahlleistung wird bereits wenige Sekunden nach dem Starten erreicht. Das Zumischen der jeweils erforderlichen Medien, wie Löschwasser, -schaum oder -pulver erfolgt wahlweise vor, in bzw. nach der Düse durch Druck bzw. Ansaugen. Die Düse ist so ausgelegt, daß sie einen stabilen, richtbaren Strahl mit hoher kinetischer Energie und Förderleistung erzeugt.By using any rocket motor with a chemically or physically generated beam that is independent of the ambient atmosphere, negative effects of the operating environment are largely eliminated. Thanks to the high energy density, the design adopted from rocket technology enables a very compact and robust design, largely without moving components, which has a very positive effect on the acquisition and maintenance costs. The full beam power is reached just a few seconds after starting. The admixing of the respectively required Media, such as fire water, foam or powder, are optionally taken before, in or after the nozzle by pressure or suction. The nozzle is designed to produce a stable, directional jet with high kinetic energy and delivery capacity.

In den Unteransprüchen sind bevorzugte Ausgestaltungen der Vorrichtung nach dem Hauptanspruch gekennzeichnet, welche speziell eine hohe Umweltverträglichkeit bewirken.In the subclaims, preferred configurations of the device according to the main claim are identified, which specifically have a high environmental compatibility.

Die Erfindung wird anschließend anhand der Zeichnung noch näher erläutert. Diese zeigt in schematischer Darstellung einen Halblängsschnitt durch eine Vorrichtung zur Erzeugung und Ausbringung von gerichteten Medienströmen mit Wasserdampf als Trägerstrahl.The invention will be explained in more detail with reference to the drawing. This shows a schematic representation of a semi-longitudinal section through a device for generating and dispensing directed media streams with water vapor as the carrier jet.

Die wesentlichen Elemente der Vorrichtung 1 sind die Brennkammer 2 mit Einspritzkopf 5, die Mischkammer 3 und die Düse 4. Der als Brennstoff verwendete Wasserstoff und der als Oxidator verwendete Sauerstoff werden in gasförmigem Zustand (GH2, GO2) getrennt voneinander in je einen Verteilerraum 6, 7 gefördert und strömen über eine Vielzahl von Einspritzelementen 8 in die Brennkammer 2. Die Einspritzelemente 8 können beispielsweise nach dem Koaxialprinzip ausgeführt sein. Die beim Eintritt in die Brennkammer 2 miteinander vermischten Treibstoffe werden mittels einer - nicht dargestellten - Vorrichtung gezündet, wonach der Verbrennungsvorgang anhält, solange die Treibstoffzuführ aufrechterhalten wird. Die Verbrennung sollte möglichst stöchiometrisch, d.h. vollständig, ablaufen, so daß als Verbrennungsprodukt nur Wasserdampf (Gas) entsteht. Da die Energiedichte in einer solchen Brennkammer 2 sehr hoch ist, weist deren Wandstruktur eine Vielzahl von Kühlkanälen 9 auf, welche von einer Kühlflüssigkeit, hier vorzugsweise Wasser (H20), durchströmt werden. Das erwärmte Kühlwasser kann teilweise oder vollständig über die Zumischeinrichtung 10 in die Mischkammer 3 eingebracht werden, wo es mit dem Abgas (Abdampf) der Brennkammer 2 vermengt wird. Die dargestellten Strömungswege mit den Ventilen 14, 15 und 18 machen es auch möglich, das zur Zumischeinrichtung 10 geleitete Wasser mit weiteren Medien zu mischen, z.B. mit einem Löschschaumzusatz. Es ist damit auch möglich, den Kühlwasserstrom vollständig von der Zumischeinrichtung 10 fernzuhalten.The essential elements of the device 1 are the combustion chamber 2 with the injection head 5, the mixing chamber 3 and the nozzle 4. The hydrogen used as the fuel and the oxygen used as the oxidizer are separated from one another in a gaseous state (GH 2 , GO 2 ) in a respective distribution space 6, 7 conveyed and flow into the combustion chamber 2 via a plurality of injection elements 8. The injection elements 8 can be designed, for example, according to the coaxial principle. The fuels mixed with one another when entering the combustion chamber 2 are ignited by means of a device (not shown), after which the combustion process continues as long as the fuel supply is maintained. The combustion should proceed as stoichiometrically as possible, ie completely, so that only water vapor (gas) is produced as the combustion product. Since the energy density in such a combustion chamber 2 is very high, its wall structure has a large number of cooling channels 9, through which a cooling liquid, preferably water (H 2 O), flows. The heated cooling water can be introduced partially or completely via the admixing device 10 into the mixing chamber 3, where it is mixed with the exhaust gas (exhaust steam) from the combustion chamber 2. The flow paths shown with the valves 14, 15 and 18 also make it possible to mix the water supplied to the admixing device 10 with other media, for example with an extinguishing foam additive. It is thus also possible to keep the cooling water flow completely away from the admixing device 10.

Mit 11 ist eine weitere, in das Innere der Mischkammer 3 mündende Zumischeinrichtung bezeichnet, deren Zustrom über ein Ventil 16 gesteuert wird, und welche für ein weiteres Medium, z.B. Löschpulver, ausgelegt sein kann. Eine weitere Zumischeinrichtung 13 mit Ventil 19 mündet in den Düsenhals, wo infolge des Unterdruckes eine passive Zumischung möglich ist.A further admixing device, which opens into the interior of the mixing chamber 3, is designated by 11, the inflow of which is controlled by a valve 16, and which is used for a further medium, e.g. Dry powder, can be designed. Another admixing device 13 with valve 19 opens into the nozzle neck, where passive admixing is possible due to the negative pressure.

Die optimale Anordnung und Ausführung der Zumischeinrichtungen wird sich voraussichtlich erst aus Versuchen ergeben. Es wird zwar davon ausgegangen, daß ein Zumischen innerhalb der Vorrichtung effektiver ist als außerhalb. Dennoch ist beispielhaft eine weitere Zumischeinrichtung 12 mit Ventil 17 dargestellt, welche ein Zumischen zum freien Strahl stromabwärts der Düse 4 ermöglicht, wobei der Strahlrand strichpunktiert und mit 20 bezeichnet ist. Die Düse 4 hat die Aufgabe, einen definierten richtbaren Strahl mit hoher kinetischer Energie, d.h. mit großer Reichweite, zu erzeugen. Hierbei können Unterschall-, Schall- und Überschallgeometrien zur Anwendung kommen. Es kann auch sinnvoll sein, die Vorrichtung 1 mit verschiedenartigen, auswechselbaren Düsen zu versehen, um Strahlform und -reichweite variieren zu können.The optimal arrangement and design of the admixing devices will probably only result from tests. It is assumed that admixing within the device is more effective than outside. Nevertheless, a further admixing device 12 with valve 17 is shown by way of example, which enables admixing to the free jet downstream of the nozzle 4, the jet edge being dash-dotted and designated by 20. The nozzle 4 has the task of a defined directable jet with high kinetic energy, i.e. with a long range. Here subsonic, sonic and supersonic geometries can be used. It can also be useful to provide the device 1 with different types of interchangeable nozzles in order to be able to vary the shape and range of the jet.

Die Vorrichtung 1 eignet sich, abgesehen von der Brandbekämpfung, auch für andere Zwecke. So ist es beispielsweise möglich, über größere Entfernungen Oberflächen von Gebäuden und Anlagen zu kühlen im Sinne einer Brandverhütung.The device 1 is, apart from fire fighting, also suitable for other purposes. For example, it is possible to cool surfaces of buildings and systems over longer distances in the sense of fire prevention.

Mit geeigneten, sich ggf. verfestigenden Medien/Stoffen (z.B. Zementschlamm) lassen sich Schadstoffe beschichten und abschirmen sowie Leckstellen abdichten. Die Beschichtung kann auch elektrisch isolierend wirken.With suitable, possibly solidifying media / substances (e.g. cement sludge), pollutants can be coated and shielded, and leaks sealed. The coating can also have an electrically insulating effect.

Es ist möglich, leicht ionisierbare Gase durch schwer ionisierbare zu ersetzen, z.B. in Hochspannungsbereichen. Man kann ionisierende Strahlung abschirmen (Reaktorunfälle etc.), Konzentrationsänderungen und Reaktionen herbeiführen, z.B. im Sinne reduzierter Toxizität.It is possible to replace easily ionizable gases with difficultly ionizable ones, e.g. in high voltage areas. One can shield ionizing radiation (reactor accidents etc.), cause changes in concentration and reactions, e.g. in terms of reduced toxicity.

Es ist auch denkbar, mit Hilfe der Erfindung Schadstoffe aus der Luft auszuwaschen. Der wirkliche Umfang der Anwendungsmöglichkeiten ist derzeit noch gar nicht absehbar.It is also conceivable to wash out pollutants from the air with the aid of the invention. The real scope of the application possibilities is currently not foreseeable.

Es sind verschiedenartige Raketenmotoren verwendbar, z.B. mit festen und fluidischen Treibstoffen und chemischer Reaktion (Verbrennung, Zersetzung) oder mit durch Wärmezufuhr erhitzter Stützmase, insbesondere Wasser/Wasserdampf. Wesentlich sind die Umgebungsunabhängigkeit sowie die schnelle Einsatzbereitschaft.Various types of rocket motors can be used, e.g. with solid and fluid fuels and a chemical reaction (combustion, decomposition) or with a heated support, especially water / steam. The independence from the environment and the rapid readiness for use are essential.

Claims (4)

Vorrichtung zur Erzeugung und Ausbringung von gerichteten Medienströmen mit Hilfe eines energiereichen, durch physikalische und/oder chemische Reaktion entstehenden Strahles in schwer zugängliche und/oder gefährdete Bereiche, insbesondere für die Brandbekämpfung und -verhütung mit Wasser, Löschmitteln und anderen Additiven, gekennzeichnet durch einen von der Umgebungsatmosphäre unabhängigen Raketenmotor (Brennkammer 2, Einspritzkopf 5) mit einer Düse (4) und mit mindestens einer Einrichtung (10 bis 13) zum aktiven (Drucksystem) und/oder passiven (selbstansaugendes System) Zumischen von Medien stromaufwärts und/oder in und/oder stromabwärts der Düse (4).Device for the generation and delivery of directed media flows with the help of a high-energy jet, which is created by physical and / or chemical reaction, in difficult to access and / or endangered areas, in particular for fire fighting and prevention with water, extinguishing agents and other additives, characterized by one of rocket motor (combustion chamber 2, injection head 5) independent of the ambient atmosphere with a nozzle (4) and with at least one device (10 to 13) for active (pressure system) and / or passive (self-priming system) admixing media upstream and / or in and / or downstream of the nozzle (4). Vorrichtung nach Anspruch 1, mit einem für flüssige und/oder gasförmige Treibstoffe ausgelegten Raketenmotor, gekennzeichnet durch eine Brennkammer (2) mit einem Einspritzkopf (5) für das Vermischen und Verbrennen von Wasserstoff (H2, Brennstoff) und Sauerstoff (O2, Oxidator) zu einem zumindest großteils aus Wasserdampfbestehenden Abgas und eine sich stromabwärts an die Brennkammer (2) anschließende Mischkammer (3) für das Zumischen von Wasser und/oder anderen Medien zum Abgas.Apparatus according to claim 1, with a rocket motor designed for liquid and / or gaseous fuels, characterized by a combustion chamber (2) with an injection head (5) for the mixing and combustion of hydrogen (H 2 , fuel) and oxygen (O 2 , oxidizer ) to an exhaust gas consisting at least largely of water vapor and a mixing chamber (3) adjoining the combustion chamber (2) downstream for the admixture of water and / or other media to the exhaust gas. Vorrichtung nach Anspruch 2, gekennzeichnet durch eine Auslegung der Brennkammer (2) einschließlich des Einspritzkopfes (5) für einen Betrieb mit gasförmigen Treibstoffen (GH2, GO2) sowie für eine stöchiometrische Verbrennung.Apparatus according to claim 2, characterized by a design of the combustion chamber (2) including the injection head (5) for operation with gaseous fuels (GH 2 , GO 2 ) and for stoichiometric combustion. Vorrichtung nach Anspruch 2 oder 3, gekennzeichnet durch eine Wandstruktur der Brennkammer (2) mit einer Vielzahl von Kühlkanälen (9) für Wasserkühlung.Apparatus according to claim 2 or 3, characterized by a wall structure of the combustion chamber (2) with a plurality of cooling channels (9) for water cooling.
EP97118785A 1996-10-31 1997-10-29 Apparatus for the generation and delivery of directed media flows Withdrawn EP0839556A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19643946 1996-10-31
DE19643946 1996-10-31

Publications (2)

Publication Number Publication Date
EP0839556A2 true EP0839556A2 (en) 1998-05-06
EP0839556A3 EP0839556A3 (en) 1999-10-27

Family

ID=7809692

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97118785A Withdrawn EP0839556A3 (en) 1996-10-31 1997-10-29 Apparatus for the generation and delivery of directed media flows

Country Status (4)

Country Link
EP (1) EP0839556A3 (en)
JP (1) JPH10184599A (en)
CA (1) CA2219714A1 (en)
DE (1) DE19747714A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012165944A (en) * 2011-02-16 2012-09-06 Nikuni:Kk Fire extinguisher
CN104147730B (en) * 2014-08-06 2017-06-13 国家电网公司 It is a kind of to collect agitation and be sprayed on the flexible mobile fire-fighting equipment of one

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2300583A1 (en) * 1975-02-12 1976-09-10 Inst Gornospasatelnogo Dela Fire fighting system with gas turbine engine - produces cooled inert combustion gases in water cooled afterburner chamber
US4630683A (en) * 1985-11-22 1986-12-23 The United States Of America As Represented By The Secretary Of The Army Afterburning reduction
US5046564A (en) * 1989-06-05 1991-09-10 Poulsen Thomas E High velocity fire fighting nozzle
DE4212913A1 (en) * 1992-04-17 1993-10-21 Sivg System Instandsetzungs Un Gas and water mixture fire-fighting equipment - has associated gas and water nozzles on swivelling turntable and water and fuel tanks

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2300583A1 (en) * 1975-02-12 1976-09-10 Inst Gornospasatelnogo Dela Fire fighting system with gas turbine engine - produces cooled inert combustion gases in water cooled afterburner chamber
US4630683A (en) * 1985-11-22 1986-12-23 The United States Of America As Represented By The Secretary Of The Army Afterburning reduction
US5046564A (en) * 1989-06-05 1991-09-10 Poulsen Thomas E High velocity fire fighting nozzle
DE4212913A1 (en) * 1992-04-17 1993-10-21 Sivg System Instandsetzungs Un Gas and water mixture fire-fighting equipment - has associated gas and water nozzles on swivelling turntable and water and fuel tanks

Also Published As

Publication number Publication date
JPH10184599A (en) 1998-07-14
DE19747714A1 (en) 1998-07-23
CA2219714A1 (en) 1998-04-30
EP0839556A3 (en) 1999-10-27

Similar Documents

Publication Publication Date Title
DE2614611C3 (en) Plant for the production of inert gases for fighting fires in mines
DE3882112T2 (en) Fire monitoring method and apparatus.
DE19636725C2 (en) Method and device for extinguishing room fires
DE19625559C1 (en) Fighting fires in enclosed spaces and buildings
DE2742505A1 (en) METHOD AND REACTOR FOR THE PARTIAL COMBUSTION OF PULVERIZED COAL
EP2540351B1 (en) Method and device for quenching oil and petroleum products in tanks
DE2547707A1 (en) BURNER
DE29522033U1 (en) Device for impulse media discharge
EP0170234B1 (en) Foam extinguishing system
DE4440716A1 (en) Diesel engine soot filter with burner and flame tube
DE1696635B2 (en) PROCEDURE FOR EXTINGUISHING THE FIRE AND APPROPRIATE DEVICE
DE69018059T2 (en) METHOD AND DEVICE FOR THE COMBUSTION OF TOXIC OXYGEN-FREE EXHAUST GASES.
AT411482B (en) WATER MIST FUELING SYSTEM, ESPECIALLY FOR PARTIAL CUTTING MACHINES IN SECTOR DRIVING
EP0839556A2 (en) Apparatus for the generation and delivery of directed media flows
EP1870636A1 (en) Smoke-free method for burning gases in a flare plant
DE102018112540A1 (en) Fuel nozzle system
DE2812160A1 (en) DEVICE FOR BURNING LOW PRESSURE GASES
DE29510982U1 (en) Fire extinguisher
DE1933289A1 (en) Procedure for the disposal of liquid waste
DE2226621A1 (en) Emulsion burner
EP0684069A1 (en) Injector and method for suction or mixing of fluids
DE3132866C2 (en) Burner for burning a liquid combustible medium containing pollutants
DE2043137A1 (en) Process for reducing smoke
DE29510976U1 (en) Combined multi-fuel jet pipe
DE1089218B (en) Device for switching on and off combustion chambers, especially for gas turbines and jet engines

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

17P Request for examination filed

Effective date: 19980620

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: DAIMLERCHRYSLER AG

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AKX Designation fees paid

Free format text: AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20000503