EP1538418A1 - Abgedichtete Vorrichtung zum Erzeugen von Flammen für Veranstaltungen - Google Patents

Abgedichtete Vorrichtung zum Erzeugen von Flammen für Veranstaltungen Download PDF

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Publication number
EP1538418A1
EP1538418A1 EP04358012A EP04358012A EP1538418A1 EP 1538418 A1 EP1538418 A1 EP 1538418A1 EP 04358012 A EP04358012 A EP 04358012A EP 04358012 A EP04358012 A EP 04358012A EP 1538418 A1 EP1538418 A1 EP 1538418A1
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EP
European Patent Office
Prior art keywords
electrodes
nozzle
sealed
fuel
production system
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Withdrawn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
EP04358012A
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English (en)
French (fr)
Inventor
Christophe Olivier Berthonneau
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.)
Groupe F Pyrotechnie
Original Assignee
Groupe F Pyrotechnie
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 Groupe F Pyrotechnie filed Critical Groupe F Pyrotechnie
Publication of EP1538418A1 publication Critical patent/EP1538418A1/de
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41H—ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL
    • F41H9/00—Equipment for attack or defence by spreading flame, gas or smoke or leurres; Chemical warfare equipment
    • F41H9/02—Flame-throwing apparatus
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63J—DEVICES FOR THEATRES, CIRCUSES, OR THE LIKE; CONJURING APPLIANCES OR THE LIKE
    • A63J5/00—Auxiliaries for producing special effects on stages, or in circuses or arenas
    • A63J5/02—Arrangements for making stage effects; Auxiliary stage appliances
    • A63J5/023—Arrangements for making stage effects; Auxiliary stage appliances for making fire and flame simulations

Definitions

  • the present invention relates to a system for producing flames, in particular for the production of pyrotechnic shows and / or aquatic or the realization of special effects.
  • the present invention relates to a system flames production of great length, able to be immersed for produce flames on a surface of water.
  • the technical field of the invention is that of the production pyrotechnic effects and shows, as well as the design of devices for achieving such effects.
  • a first known method for creating fire on the surface of the water is to diffuse combustible gas from the bottom of a filled basin of water, the gas bubbles formed by this diffusion being lit as and when as they appear on the surface of the water by a flame night light office.
  • the document WO 91/18240 A1 describes a method and apparatus for producing flames on a jet of water, in particular for ornamental fountains or for spectacles aquatic.
  • This process consists in injecting combustible gas by through a tube or several feed tubes arranged at the inside of the nozzle forming the jet of water, the injected gas forming a very a large number of bubbles in said jet of water, an ignition device electric arc or flame being disposed outside the water jet to near its base, so as to ignite the gas bubbles at the exit of the water jet.
  • This type of flame production device is not designed for to be immersed and its arc ignition system does not work not properly when it is too close to the water. Indeed, humidity can produce short circuits that can cause the destruction of the electric firing circuit. In addition, static drops of water may form around one or both electrodes and constitute a insulation that prevents the electric arc from forming between these electrodes.
  • the present invention aims to provide a system of production and projection of flames of great length, that is to say at least 1 m, and up to 30 m, for the production of pyrotechnic be used for making flames on the surface of the water in any safety and without the disadvantages encountered with the devices of art prior.
  • the object of the invention is in particular to provide a system for producing flames that features a secure ignition system and waterproof and which can be immersed and / or used on the surface of a body of water without risk of deterioration or malfunction.
  • Such a flame production system has the advantage of being perfectly waterproof thanks to the use of an insulating resin electrically that is poured into the chassis to occupy all the spaces empty spaces inside it, which allows its use in conditions of high humidity or immersion in water. This allows to adapt the system according to the invention to any installation configuration pyrotechnics for the production of flames on the surface of the water or in jets of water.
  • Electrically insulating resins are well known to humans of art, and therefore a large number of resins can be used to seal the system according to the invention. We will nevertheless prefer fast setting resins, very rigid after solidification, which make the less sensitive system during manipulations.
  • the system according to the invention can in particular be placed flush with the surface of the water on a floating structure or fixed on it, or to be immersed under the surface of the water, out of public view, and then emerged suddenly using a climbing machine to create flames coming out of the water by surprise.
  • the fuel used is a hydrocarbon isoparaffinic liquid having a flash point greater than 50 °, of preferably greater than 60 °, and which is naturally biodegradable and odorless.
  • a hydrocarbon has the advantage of having very few risk of explosion and, moreover, not to be polluting, thus allowing to avoid contaminating the waters and / or soils of the places where flames using the system according to the invention.
  • said ignition device of The system according to the invention is capable of generating a plurality of electric arcs, preferably at the periphery of said micronised fuel jet sprayed by said nozzle.
  • said ignition device advantageously comprises minus two pairs of electrodes capable of producing at least two so-called arcs electric.
  • These electrodes in a manner known to those skilled in the art, comprise an insulating part, for example ceramic, surmounted by a tip conductive tungsten. It is thus possible to improve the ignition of said fuel jet at the time of emission.
  • said ignition device comprises several pairs of electrodes, feeding said pairs of electrodes independently of each other.
  • said ignition device comprises at least two said means power supply capable of supplying each pair independently electrodes, so as to guarantee the presence of at least one arc at the moment the emission of said fuel jet.
  • the distance between the ends of the tips conductive two said electrodes of at least one pair of electrodes is between 0.5 to 1.5 cm, said ends of the tips said electrodes preferably being directed towards the longitudinal axis said first nozzle.
  • the longitudinal axis of the nozzle means the axis passing through the center of the spray orifice of said nozzle, and directed according to a direction perpendicular to the plane of the surface of the housing in which are fixed said nozzle and said electrodes.
  • the ignition device of the system according to the invention comprises at least two pairs of electrodes
  • said electrodes are preferably advantageously arranged equidistant from the axis longitudinal of said first nozzle.
  • Said electrodes may in particular delimit a "square” or a “rectangle” whose said jet occupies the center, said ends of the tips of said electrodes being directed towards center and preferably spaced at most 1.5 cm from each other.
  • the sealed and secure flame production system according to the invention advantageously makes it possible to produce flames of a length between 0.5 and 30 m, preferably at least 5 m, preferably at least 10 m, with a fuel pressure greater than 20 bars.
  • the system according to the invention makes it possible to for an average fuel pressure at said first nozzle 25 bar, flames of between 5 and 10 m in length, and for an average pressure of the order of 100 bars, flames of a length between 8 and 30 m, irrespective of the environment in which which said flames are made, whether on a surface of water or on dry ground.
  • the sealed system and secure production of flames 1 consists essentially of a housing 2 constituting a frame and two main subassemblies, to namely a device for projecting a fuel and a device ignition by electric arc.
  • the fuel projection device is composed mainly of a first nozzle 6 connected to a fuel distribution network 3 itself connected to a fuel tank not shown in FIG. 1.
  • Said distribution network consists of fuel pipes. 3 1 admission of fuel from said tank to a filter 4 adapted to high pressures (of the type used in pressure cleaning systems) via a pump motor also not shown and distribution lines 3 2 able to convey the fuel fluid pressurized by said motor pump from the filter 4 to a solenoid valve 5, then to said nozzle 6.
  • the fuel used for the production of flames with the The system according to the invention is preferably a liquid fuel such as hydrocarbon.
  • the hydrocarbons used can be of any known type in the production of pyrotechnic shows.
  • an iso-paraffinic hydrocarbon liquid including ISOPAR® L, produced and distributed by the company ExxonMobil Chemical, with a flash point greater than 60 ° C, therefore not very dangerous with regard to the risks of explosion.
  • ISOPAR® L iso-paraffinic hydrocarbon liquid
  • it is a very volatile hydrocarbon, odorless and naturally biodegradable, which removes the risks of pollution of the soil and water of the places where are realized shows using the device of the invention.
  • the ignition device of the flame production system 1 in its simplest configuration, is, for its part, constituted of a means power supply such as a transformer 7, of the high voltage type, connected to a pair of electrodes 8 placed in the housing 2, near the nozzle 6 spraying the hydrocarbon to produce an arc and a flame when a hydrocarbon jet is emitted by the nozzle.
  • a means power supply such as a transformer 7, of the high voltage type
  • the transformer 7 and the solenoid valve 5 are respectively electrically connected, via a base 9, consisting of a terminal block or connectors for example, also placed in the housing 2 of the system 1, to a power source external electrical device to said device, switches 10 1 , 10 2 respectively for opening and closing the supply circuits of said solenoid valve 5 and said transformer 7.
  • the nozzle 6 used in the projection device of the system 1 according to the invention is preferably a high-pressure nozzle, made of steel, with a spraying orifice 6 1 made of tungsten, capable of working at pressures greater than 20 bar.
  • Such a nozzle 6 makes it possible to channel the flow of liquid hydrocarbon into a rectilinear fine jet, that is to say forming a small angle with respect to the axis ZZ 'passing through the center of the orifice 6, of the nozzle, under a pressure hydrocarbon content greater than 20 bar, so as to produce flames of length up to 30 m.
  • the pair of electrodes 8 of the ignition device consists of electrodes consisting of an insulating ceramic body 8 1 , partially embedded in the housing 2 and surmounted by a tip 8 2 tungsten conductor.
  • Electrodes 8 are placed such that the distance between their points 8 2 is between 0.5 cm and 1.5 cm, and preferably equidistant from the orifice 6 1 of the nozzle 6, so that an arc electrical occurs between their points 8 2 when the transformer 8 is electrically powered (the switch 10 2 being closed).
  • said electrodes 8 are arranged such that said electric arc formed between their peaks 8 2 does not occur through said sprayed hydrocarbon jet but on the periphery of the latter in order to obtain an ignition of said jet which is reliable and secure.
  • said ends of the latter are preferably folded at right angles and directed towards the longitudinal axis ZZ 'of the nozzle 6.
  • a resin 11 is electrically insulating and insoluble in the housing 2 to flood all components.
  • Suitable resin is, for example, a fast set resin comprising a diphenylmethane diisocyanate hardener, commonly used in the paint industry.
  • the tightness and rigidity of the assembly between the bodies 8 1 of the electrodes and the housing 2 are guaranteed with the aid of a stainless steel cable gland.
  • the flame production system according to the invention is thus made perfectly waterproof against moisture and the introduction of liquid in the housing 2, which makes its use possible on or in the water for create flames on the surface of the water.
  • the system according to the invention can be implemented in a very simple by a single operator or, where appropriate, so automatic.
  • the system 1 for producing flames can be placed on a floating support or fixed on a surface of water on which one wants to produce flames, or alternatively, on machinery ascensional installed under said surface of water and emerging the system 1 punctually to emit flames by surprise out of the water.
  • said system 1 is connected to a hydrocarbon reservoir through the inlet conduit 3 1 of the distribution network as well as an electrical firing device (not shown) connected to the base 9 to supply electricity to the transformer 7 and the solenoid valve 5 of the ignition device 4 and the distribution network respectively.
  • a dosing motor pump also not shown, supplies the system 1 with a hydrocarbon stream at a pressure of between 20 and 110 bar depending on the length of the desired flame.
  • flame-generating devices specific to the desired flame type are produced.
  • flame production systems operating at an average hydrocarbon pressure of 25 bar will be used, and to produce flames with a height of between 8 m and 25 m systems operating at an average pressure of 100 bar, said hydrocarbon pressure being regulated by pressure switches placed on the metering pump or downstream thereof on the inlet pipe 3 1 of the distribution network .
  • the hydrocarbon stream first passes through the filter 4 to prevent the presence of any solid particles that may remain in the liquid, and is then fed through the distribution line 3 2 to the solenoid valve 5.
  • This solenoid valve is closed when the switch 10 1 is open and therefore prevents the arrival of hydrocarbon up to the nozzle 6.
  • no electric arc is formed between the electrodes 8 as the transformer power switch 2 2 of the transformer 7 is also open.
  • an operator triggers, from the firing device, the closing of the switch 10 2 to feed the transformer 7 and the electrodes 8, so as to produce an electric arc between the points 8 2 of these electrodes.
  • the operator triggers the closing of the switch 10 1 to control the opening of the solenoid valve 5 and the admission of the pressurized hydrocarbon stream to the nozzle 6 where it is sprayed in the form of a rectilinear fine jet and ignited by the electric arc produced between the tips 8 2 of the electrodes 8 at the periphery of the jet at the spray orifice 6 1 of said nozzle 6.
  • the system according to the invention has a secure ignition device allowing the production of several electric arcs independently of each other, so as to guarantee the presence of at least one arc during the emission of the jet of hydrocarbon through the jet 6.
  • an ignition device such as represented in FIG. 2, comprising several pairs of electrodes, and preferably at least two pairs of identical electrodes 8a, 8b, said electrodes preferably equidistant from the longitudinal axis ZZ 'of the nozzle 6, and defining for example a "rectangle" around said nozzle 6.
  • Electrodes 8a, 8b squared around the nozzle 6 or else both electrodes of the same pair superimposed.
  • the electrodes do not necessarily have to be placed equidistant from each other to obtain a secure ignition system; the only constraint is that the conductive tips 8 2 two electrodes of the same pair of electrodes 8a, 8b are spaced from each other at most 1.5 cm in order to produce between them an electric arc, and that said electrodes are sufficiently close to the nozzle 6 so that said electric arc is produced at the periphery of the emission orifice 6 1 of the nozzle 6, and therefore at the periphery of the hydrocarbon jet when it is emitted for the fire.
  • Each pair of electrodes 8a, 8b is further powered by a independent transformer such as the transformer 7 described in Figure 1.
  • the two pairs of electrodes being powered independently, we warn thus any failure of one of the generators and one ensures the production of minus one electric arc between at least two electrodes of the pairs 8a, 8b and the ignition of a flame during the emission of the hydrocarbon jet at the level of of the jet.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
EP04358012A 2003-12-05 2004-11-25 Abgedichtete Vorrichtung zum Erzeugen von Flammen für Veranstaltungen Withdrawn EP1538418A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0314283 2003-12-05
FR0314283A FR2863347B1 (fr) 2003-12-05 2003-12-05 Dispositif etanche et procede de production de flammes pour le spectacle

Publications (1)

Publication Number Publication Date
EP1538418A1 true EP1538418A1 (de) 2005-06-08

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EP04358012A Withdrawn EP1538418A1 (de) 2003-12-05 2004-11-25 Abgedichtete Vorrichtung zum Erzeugen von Flammen für Veranstaltungen

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EP (1) EP1538418A1 (de)
FR (1) FR2863347B1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008074269A1 (en) * 2006-12-19 2008-06-26 Petr Lukes Remote control light source using a flame
CN102207360A (zh) * 2010-03-31 2011-10-05 深圳华强智能技术有限公司 天然气喷火装置
CN102235839A (zh) * 2010-04-22 2011-11-09 深圳华强智能技术有限公司 燃油喷火系统
US20210318104A1 (en) * 2020-02-01 2021-10-14 Roughrider Arms LLC Spark ignition flamethrower

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1502040A (fr) * 1966-10-05 1967-11-18 Ruggieri Ets Fontaine lumineuse pyrotechnique
GB2012926A (en) * 1977-09-23 1979-08-01 Tirrena Spa Shoulder-Supported Flame Thrower, for Surprise Military Operations, which is Extra Light and of Large Range
FR2681678A1 (fr) * 1991-09-19 1993-03-26 Hesto Jean Francois Procede pour faire monter des flammes nues.
US5756920A (en) * 1996-05-09 1998-05-26 Sigma Services, Inc. Special effect flame cannon
DE20117854U1 (de) * 2001-11-02 2002-01-10 Joachims, Hinrich, 26629 Großefehn Effektanlage zur Erzeugung feuer- und pyrotechnischer Effekte auf Vergnügungsveranstaltungen

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1502040A (fr) * 1966-10-05 1967-11-18 Ruggieri Ets Fontaine lumineuse pyrotechnique
GB2012926A (en) * 1977-09-23 1979-08-01 Tirrena Spa Shoulder-Supported Flame Thrower, for Surprise Military Operations, which is Extra Light and of Large Range
FR2681678A1 (fr) * 1991-09-19 1993-03-26 Hesto Jean Francois Procede pour faire monter des flammes nues.
US5756920A (en) * 1996-05-09 1998-05-26 Sigma Services, Inc. Special effect flame cannon
DE20117854U1 (de) * 2001-11-02 2002-01-10 Joachims, Hinrich, 26629 Großefehn Effektanlage zur Erzeugung feuer- und pyrotechnischer Effekte auf Vergnügungsveranstaltungen

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008074269A1 (en) * 2006-12-19 2008-06-26 Petr Lukes Remote control light source using a flame
CN102207360A (zh) * 2010-03-31 2011-10-05 深圳华强智能技术有限公司 天然气喷火装置
CN102207360B (zh) * 2010-03-31 2013-10-30 深圳华强智能技术有限公司 天然气喷火装置
CN102235839A (zh) * 2010-04-22 2011-11-09 深圳华强智能技术有限公司 燃油喷火系统
US20210318104A1 (en) * 2020-02-01 2021-10-14 Roughrider Arms LLC Spark ignition flamethrower
US12163765B2 (en) * 2020-02-01 2024-12-10 Roughrider Arms LLC Spark ignition flamethrower

Also Published As

Publication number Publication date
FR2863347B1 (fr) 2006-09-29
FR2863347A1 (fr) 2005-06-10

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