JP2001132910A - Flame ejector for special effect - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a flame generator for a special effect capable of forming the flame of an object simply by anyone and being safely continuously used. SOLUTION: Four fuel jet nozzles 17 are provided at equal intervals on a trestle 11 so as to surround the circumference. An ignition source generating means 18 is provide at its center so that the ejecting direction of the nozzles 17 intersects the ignition source generating direction formed by an ignition source generating means on its extension line.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a flame blowing device for a special effect which is suitable for shooting a movie or for blowing up a flame at a variety of event venues.

[0002]

2. Description of the Related Art Recently, it has been common practice to blow up flames high in the air at event venues and the like to excite the scene. In this case, the higher the thick flame, the more
The staging effect increases. Therefore, in order to enhance the production effect, a strong firepower is absolutely necessary. Conventionally, as shown in FIG. 2, a bag 2 containing gasoline is put in an iron container 1, and an explosive 3 is put under the bag 2, and the fire of the explosive and the blast blow the bag. The gasoline inside was sprayed in a mist and burned. Therefore, the direction or form of the mist of the gasoline coincides with the direction or the form of the rise of the flame.

[0003]

In the prior art as described above, the direction of mist or the mist of gasoline is not always constant depending on the condition of the set of explosives. For example, gasoline scatters around, The fire was so high that it didn't even fly. However, it depends on the size of the container 1 and the amount of gasoline, or the setting of the gasoline bag 2 and the gunpowder 3, etc., in order to scatter gasoline neatly in the desired direction. There was a problem that it was not possible.

[0004] Further, not only does gasoline not disperse neatly, but also gasoline may fly to the ground as a lump. If the gasoline scatters as a lump like this on the ground, as a matter of course, the flames are scattered around, so that there is a problem that a very dangerous situation and fire fighting are required. In any case, with this conventional device, it was impossible to stably produce the target flame, and there was a compelling failure. Failure is unavoidable, so it can hardly be used in the demonstration venue, and even if it could be done, the details were small, such as the size of the container and the amount of gasoline, the gasoline bag and the setting of gunpowder, etc. Careful attention must be paid, and there is a problem that much time is required for the setting work.

[0005] As described above, in one setting at a time,
It took so much time that it was difficult to use it continuously. For this reason, there was a problem that it was not possible to use the method of continuously blowing up the flame to enhance the effect. SUMMARY OF THE INVENTION An object of the present invention is to provide a flame generator for special effects that can be used by anyone easily and can be used safely and continuously.

[0006]

According to a first aspect of the present invention, there is provided a frame,
A fuel tank filled with compressed fuel, a fuel jet nozzle connected to the fuel tank, and a fire generating means for generating a fire are provided, and the fuel jet direction of the fuel jet nozzle and the fire generating direction of the fire generating It is characterized in that the angle between the fuel ejection nozzle and the fire generating means is set so as to intersect on the extension line of. The second invention is characterized in that a plurality of fuel ejection nozzles are provided on a gantry at intervals in a circumferential direction, and a fire generating means is provided at the center of the fuel ejection nozzles.

A third aspect of the invention is characterized in that an air hole for adjusting the amount of introduced air is formed in the fuel ejection nozzle. The fourth invention is characterized in that an adjusting mechanism for adjusting the height of the fire generating means provided on the gantry is provided and an angle adjusting mechanism for adjusting the angle of the fuel ejection nozzle is provided. Fifth
The feature of the invention is that a solenoid valve for opening and closing the opening of the fuel ejection nozzle is provided.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiment shown in FIG.
In addition, four fuel tanks 12 are rotatably provided at symmetric positions. That is, hinges 14 are provided on each of these four fuel tanks 12, and the four fuel tanks are rotatable about the hinges with respect to the gantry 11, and are fixed at arbitrary rotation positions. I can do it. A main body 13 of the solenoid valve V is fixed to each of the four fuel tanks 12. Therefore, the angle of the solenoid valve V can be adjusted by rotating the fuel tank 12. The fuel tank 12 is connected via a hose 15 to a compressed fuel cylinder (not shown).

On the main body 13 of the solenoid valve V, a flame arrester 16 which is a flashback valve for preventing the flame from being guided to the fuel tank 12 is fixed. The fuel jet nozzle 17 is fixed on the flame arrester 16. That is, this fuel ejection nozzle 1
Reference numeral 7 is provided in each of the four fuel tanks 12, and a total of four fuel tanks are provided. Moreover, these four nozzles 17 are provided at equal intervals on the circumference, and rotate integrally with the main body 13, the frame arrestor 16 and the fuel tank 12 of the solenoid valve V,
The angle can be adjusted freely. The hinge 14 provided in the fuel tank 12 is a main element, and constitutes an angle adjusting mechanism for adjusting the angle of the fuel ejection nozzle 17.

Further, an air hole (not shown) is formed in the fuel ejection nozzle 17 so that the opening of the air hole can be freely adjusted. The gantry 11 provided with the fuel ejection nozzles 17 as described above has
The fire type generating means 18 is provided at the center of the arrangement, which is a position equidistant from. The fire generating means 18 has a support rod 19 at its lower end, and slidably penetrates the support rod 19 through a bearing 20 provided on a gantry. The height of the fire generating means 18 as described above can be freely adjusted by pushing the support rod 19 into the bearing 20 or by lifting it up. Therefore, the support rod 18 and the bearing 19 constitute an adjusting mechanism for adjusting the height of the fire generating means 17.

Next, a case where a flame is generated using the apparatus of this embodiment will be described. First, the hose 15 is connected to a cylinder (not shown) filled with the compressed fuel, and the fuel tank 12 is filled with the compressed fuel of the cylinder. The fuel at this time may be a gas or a liquid. After the fuel is filled in the fuel tank 12 as described above, the fire generating means 18 is ignited, and a flame as a fire is erected therefrom.

After the flame as a fire is set up, the solenoid valve V is opened, and the compressed fuel in the fuel tank 12 is jetted from the fuel jet nozzle 17 vigorously. The fuel ejected from the fuel ejection nozzle 17 is ignited by a fire,
It is blown up vigorously. When the ignited fuel is blown up in this manner, the flame is blown up in a target direction high in the sky.

In the present invention, the number of nozzles is not necessarily limited. One or four
It can be more than books. However, in the case of one cable, the following problem arises. Therefore, if possible, four or more cables are ideal. The reason is as follows.

For example, if there are four or more fuel ejection nozzles 17, there is an advantage that ignition is easy even in a strong wind. If the number of the fuel ejection nozzles 17 is one, the fuel ejected from the fuel ejection nozzles 17 flows in a direction away from the fire depending on the wind direction, so that ignition may not be performed. However, if there are four fuel ejection nozzles 17, the fuel ejected from at least one nozzle 17 comes into contact with the fire regardless of the direction in which the wind blows. Thus, if only one nozzle 17 is ignited, the fuel of the other nozzles 17 is also ignited accordingly. Therefore, regardless of the direction of the wind, the ignition can always be performed.

The relative relationship between the fuel jet nozzle 17 and the fire generating means 18 is as follows. That is, the opening of the fire generating means 18 is located below the jetting port of the fuel jet nozzle 17, and the fuel jetted from the fuel jet nozzle 17 is blown out so as to glaze the flame of the fire generating means 18. Ideally. If the fuel ejected from the fuel ejection nozzle 17 is directly applied to the fire, the fire is extinguished by the momentum at which the fuel is ejected, and the fuel from the fuel ejection nozzle 17 cannot be ignited. Therefore, from the viewpoint of ignition, it is better that the opening of the fire type generating means 18 is located below the ejection port of the fuel ejection nozzle 17. For this reason, the height of the fire generating means 18 may be freely adjusted as described above to maintain an ideal relationship.

The height of the flame formed by this device is determined by the pressure of the fuel filled in the fuel tank 12, the angle of the fuel jet nozzle 17, the mixing ratio of fuel and air, and the like. The mixing ratio between the fuel and air can be adjusted by increasing or decreasing the opening of the air hole.
The angle of the fuel ejection nozzle 17 can also be freely adjusted. Then, the more the fuel ejection nozzle 17 is inclined, the lower the flame height can be. Conversely, the higher the fuel ejection nozzle 17 is, the higher the flame height can be.

Further, as described above, the fuel jet nozzle 17
Are provided at equal intervals, and if the nozzle 17 is lit,
An updraft occurs below the flame, which also causes the flame to be blown high. Note that the generation of the upward airflow also depends on the angle of the fuel ejection nozzle 17.
In any case, if the ejection direction in which fuel is ejected from the fuel ejection nozzle 17 and the extension line of the flame of the fire generating means 18 intersect each other, the fuel ejected from the fuel ejection nozzle 17 ignites. Become. Then, in order to adjust the height of the flame, the angle of the fuel ejection nozzle 17 may be adjusted.

By opening and closing the solenoid valve V, the fuel can be ejected from the fuel ejection nozzle 17 or stopped. When the solenoid valve V is opened and closed, a so-called fire ball can be produced. A fire ball is a flame like a round ball. The fire ball can be made by opening and closing the solenoid valve V as described above. Then, by repeatedly opening and closing the solenoid valve V in a short time,
You can make several fireballs in a row. Therefore, depending on the purpose, it is possible to further enhance the effect.

In the above embodiment, the fuel ejection nozzle 17 is rotated together with the solenoid valve V and the frame arrestor 16 to adjust the angle. It doesn't matter. In short, any mechanism can be used as long as the mechanism can freely change the angle of the nozzle as needed. The same applies to the adjusting mechanism for adjusting the height of the fire generating means 18. That is, any configuration may be used as long as the mechanism can adjust the height.

[0020]

According to the first aspect of the present invention, the flame can be easily formed by injecting the compressed fuel from the fuel ejection nozzle while the ignition generating means has the ignition. There is no difficulty and no danger as in the past. Therefore, it can be used safely even in a demonstration hall or the like. Also, just by filling the fuel tank with fuel, you can create a flame immediately, so once you make the flame,
If the fuel tank is immediately filled with fuel, the flame can be blown up continuously.

According to the device of the second aspect of the present invention, since a plurality of fuel ejection nozzles surround the fire generating means, for example,
Even if the wind is blowing, the fuel ejection nozzle can be ignited. Further, the fuel injected from the fuel ejection nozzle is ignited to generate a flame, but the rising airflow at that time acts synergistically to further increase the height of the flame. That is, since the arrangement center of each nozzle is surrounded by the rising airflow caused by the flame ejected from each nozzle, the momentum of the rising airflow is further increased. The effect of the increasing ascending airflow further increases the height at which the flame is launched. In other words, although the height of the flame depends on the pressure of the fuel tank, the angle of the fuel jet nozzle, and the like, the height of the flame can be made higher due to structural factors of the device of the second invention.

According to the device of the third aspect of the present invention, the fire is not extinguished by the momentum of the fuel ejected from the fuel ejection nozzle. Therefore, stable ignition can always be achieved. According to the device of the fourth aspect, the momentum of the flame can be adjusted while adjusting the amount of air introduced into the fuel ejection nozzle. According to the device of the fifth aspect, the height of the flame can be freely adjusted without extinguishing the fire by adjusting the height of the fire generation means and the angle of the fuel ejection nozzle.

According to the device of the sixth aspect, the timing of generating the flame can be freely adjusted by opening and closing the solenoid valve. In addition, if the solenoid valve is quickly opened and closed, a so-called fire ball can be made. That is, the timing of flame generation and the form of flame can be freely determined.

[Brief description of the drawings]

FIG. 1 is a partial sectional view showing an embodiment of the present invention.

FIG. 2 is a sectional view of a conventional device.

[Explanation of symbols]

REFERENCE SIGNS LIST 11 gantry 12 fuel tank V solenoid valve 14 hinge constituting angle adjustment mechanism 17 fuel ejection nozzle 18 fire type generating means 19 support rod forming adjusting means for adjusting height of fire type generating means 20 adjusting height of fire type generating means Bearing constituting the adjusting means

Claims (6)

[Claims] A gantry is provided with a fuel tank filled with compressed fuel, a fuel jet nozzle connected to the fuel tank, and a fire generating means for generating a fire. The fuel jet direction of the fuel jet nozzle and the fire generating means are provided. A special effect flame ejection device in which the angle between the fuel ejection nozzle and the ignition type generating means is set such that the direction of the ignition type intersects on an extension of the direction. 2. The special effect flame ejection device according to claim 1, wherein a plurality of fuel ejection nozzles are provided on the gantry at intervals in a circumferential direction, and a fire generating means is provided at the center of the fuel ejection nozzles. 3. The special effect flame ejection device according to claim 2, wherein the tip of the flame of the fire type emitted from the fire type generation means is positioned lower than the ejection ports of the plurality of fuel ejection nozzles. 4. The special effect flame ejection device according to claim 1, wherein an air hole for adjusting an amount of introduced air is formed in the fuel ejection nozzle. 5. An apparatus according to claim 1, further comprising an adjusting mechanism for adjusting the height of the fire generating means provided on the gantry, and an angle adjusting mechanism for adjusting the angle of the fuel ejection nozzle. Flame blowing device for special effects. 6. The special effect flame ejection device according to claim 1, wherein the fuel ejection nozzle is provided with a solenoid valve for opening and closing an opening of the fuel ejection nozzle.