JPH08109092A - Igniter for smoke fire - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a igniter for smoke and fire that is safe to handle. An ignition tool cylinder having a bottomed cylinder, an ignition charge filled in the ignition tool cylinder, an embolus for closing an opening of the ignition tool cylinder, the embolus and the ignition charge. And a two space conduit for passing through the embolus and transmitting a signal due to combustion of fuel gas. The ignition charge consists of metallic silicon and lead trioxide. The ignition charge is 10 to 40 parts by weight of metallic silicon and 6 parts of lead tetraoxide.
It consists of 0 to 90 parts by weight. Ignition is metallic silicon 20
-30 parts by weight and 70 to 80 parts by weight of lead tetraoxide.
The ignition charge consists of boron metal and barium chromate. The ignition charge consists of 2 to 20 parts by weight of metallic boron and 80 to 90 parts by weight of barium chromate. The ignition charge is metallic boron 5-5.
15 parts by weight and 85 to 95 parts by weight of barium chromate.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a remote igniter for launch fireworks.

[0002]

2. Description of the Related Art Conventionally, launch fireworks have been launched by using an electric igniter.

This will be specifically described with reference to FIGS. 8 and 9.

First, an injection powder (black powder) 3 is placed on the bottom portion 2 of a launching cylinder 1 such as a metal pipe, and a launching firework 4 such as a round ball is placed thereon. The launch fireworks 4 have an ignition port 5 in contact with an injection powder (black powder) 3. A fast-fire wire 6 is in contact with the propellant (black powder) 3, an end 7 of the fast-fire wire 6 is guided to the outside of the launching cylinder 1, and an electric igniter 8 having the same configuration as that of an electric detonator is provided. Is attached.

Usually, since a plurality of launch fireworks are simultaneously operated, launch fireworks are similarly arranged in each launch cylinder 1, and an electric igniter 8 is attached.

Each electric igniter 8 is connected to the control device 10 via the wiring 9.

By operating the control device 10, launch fireworks have been launched by remote control.

[0008]

By the way, in the conventional electric ignition method, there is a concern that the electric igniter may be blasted by a lightning strike, and when a thunder approaches, the electric ignition that has been prepared for launch until then. I have to remove the ingredients in a hurry.

However, in a large-scale fireworks display, there may be hundreds of shots, and it is a difficult task to remove all the electric igniters from the launch fireworks in the ready-to-launch state. There was a risk that it might explode.

Therefore, the present inventor searched for a launch fireworks launching system which can eliminate the danger due to electrical factors such as lightning by using a non-electric igniter, and completed the present invention. It has arrived.

The present invention has been made on the basis of such knowledge, and an object thereof is to provide a igniter for a smoke and fire which is safe to handle.

[0012]

According to a first aspect of the present invention, there is provided an igniter tubular body having a bottomed tubular body, an ignition charge filled in the igniter tubular body, and an opening of the igniter tubular body. And a space portion formed between the embolus and the ignition charge, and two conduits for passing through the embolus for transmitting and receiving a signal due to combustion of fuel gas. It is a thing.

In the second aspect of the present invention, the ignition charge is made of metallic silicon and lead trioxide.

According to a third aspect of the present invention, the ignition charge comprises 10 to 40 parts by weight of metallic silicon and 60 to 90 parts by weight of lead tetraoxide.

According to a fourth aspect of the present invention, the ignition charge comprises 20 to 30 parts by weight of metallic silicon and 70 to 80 parts by weight of lead tetraoxide.

According to a fifth aspect of the present invention, the ignition charge is made of metallic boron and barium chromate.

According to a sixth aspect of the present invention, the ignition charge comprises 2 to 20 parts by weight of metallic boron and 80 to 90 parts by weight of barium chromate.

According to a seventh aspect of the present invention, the ignition charge comprises 5 to 15 parts by weight of boron metal and 85 to 95 parts by weight of barium chromate.

[0019]

In the igniter for smoke and fire according to the present invention, the tip of the igniter cylinder is inserted into the tip of the fast firing line of the launch fireworks inserted in each launch tube, and the outer periphery of the portion is inserted. Is fixed with adhesive tape.

Two conduits (plastic tubes) of each igniter for smoke and fire are connected to one conduit (plastic tube) of fuel gas through a connector, and the launch cylinders are serially connected.

In the circuit thus constructed, the continuity of the circuit is checked by flowing nitrogen gas.

When the conduction is normal, the fuel gas (mixed gas consisting of methane, hydrogen and oxygen) is made to flow immediately before the launch, so that it can be operated (arming state).

On the other hand, in the case of defective conduction, the defective portion is inspected and repaired.

The launch is performed by connecting the circuit in the arming state to a igniter and igniting the fuel gas so that the fuel gas burns and propagates to ignite the propellant (black powder).

At this time, the combustion of the fuel gas is 2500 m / s
Propagating at a speed of ec, and in each igniter for smoke and fire, propagating from the inflow side of the two conduits into the space portion and igniting the ignition charge connected to the space portion, and burning in the space portion on the discharge side. Propagate from the conduit to the inflow side of the next igniter.

When the igniter for smoke and fire ignites, the fire power moves to the fast firing line for launch fireworks, and the propellant (black powder) in the launch tube is transferred from the fast firing line to launch fireworks.

[0027]

The present invention will be described below with reference to the accompanying drawings.

FIG. 1 shows an embodiment of the igniter for smoke and fire according to claim 1.

In the figure, reference numeral 30 is an igniter cylinder made of a bottomed cylinder made of plastic or aluminum.

The tip 31 of the igniter cylinder 30 is sharp.

An ignition charge 35 and an ignition charge 36 are filled in the igniter cylinder 30. As described below, ignition charge 3
5 and the ignition powder 36 may have the same composition or may have different compositions. In case of heterogeneity, for example, black powder, propellant, plastic thermite, thermite itself, PET
N, RDX, HMX, etc.

At the open end 32 of the ignition device cylinder 30,
The embolus 33 is attached through the space 37.

The space 37 is where the fuel gas stays, and may be 0.25 cc or more. If this volume is too large, the embolus 33 may be blown out by the combustion of the fuel gas, and the ignition charge 35 and subsequent charges may not be transferred to the explosive series.

Two conduits 38 and 40 made of a plastic tube are attached to the embolus 33 so as to penetrate therethrough. The open ends 39, 41 of the two conduits 38, 40 are located in the space 37.

As shown in FIG. 2, the smoke igniter 20 according to the present embodiment having the above-described structure has the end 44 of the fast firing line 43 of the launch fireworks outside the upper end 48 of the launch cylinder 46.
Attached to.

The details are shown in FIG. The smoke igniter 20 is inserted from the tip 31 side of the igniter cylinder 30 into the end 44 of the fast-fire line 43 of launch fireworks, and is attached by fixing the outer periphery of the part with an adhesive tape 45 or the like.

The fast ignition wire 43 is, for example, 5 to 6 1 mmφ.
It is formed by accommodating the fast-fire wire of the above in a paraffin paper cylinder. Therefore, in the present invention, the fast-fire line 43 means these bundles.

The igniter 20 for smoke and fire is inserted in the central portion of each of the fast firing lines 43.

As shown in FIG. 2, the fast-fire wire 43 communicates with the position of the propellant (black powder) 49 arranged on the bottom 47 of the launching cylinder 46 such as a metal pipe.

A launch firework 50 such as a round ball is placed on the propellant (black powder) 49, and the ignition port 51 of the launch pyrotechnic 50 is in contact with the propellant (black powder) 49.

FIG. 4 shows a remote operation of launch fireworks using a fast ignition wire 43 to which the smoke igniter 20 according to this embodiment shown in FIG. 3 is attached.

First, each device will be described.

52 is the two conduits 3 of the igniter 20 for smoke and fire.
As shown in FIG. 5, it is a connecting tool for connecting to the fuel cells 8, 40, and has a fuel gas inflow passage 52a and a fuel gas exhaust passage 52b.
The connector 52 is connected by a single conduit 53. A circuit 59 is formed by this conduit 53.

The igniter 54 is connected to the inflow side of the circuit 59. The igniter 54 has oxygen and fuel gas (for example, combustible gas composed of methane, ethane, carbon monoxide and hydrogen, hydrogen, acetylene, propane, methane, etc.)
And three gas cylinders 55 into which nitrogen gas and nitrogen gas are individually charged are connected.

The igniter 54 has a lever for manually switching between the fuel gas and the nitrogen gas. When confirming the continuity, only the nitrogen gas is allowed to flow into the circuit 59, and the flow meter 57 provided on the discharge side of the circuit 59. Check the continuity of the entire circuit by. On the other hand, to confirm the continuity, the fuel gas is caused to flow into the circuit 59 by the above-mentioned switching lever.

An oximeter 58 is connected to the discharge side of the circuit 59. The oximeter 58 is attached to the terminal outlet of the circuit 59 to check the filling of the fuel gas and the oxygen concentration.

Next, a method for launching a launch firework using the smoke igniter 20 according to the present embodiment will be described.

First, in each of the launching cylinders 46, the conduit 5 is attached to each of the conduits 38 and 40 whose conduction has been confirmed in advance by using the connecting tool 52.
3 is serially connected to form a series circuit 59 of all the launch cylinders 46 to be launched.

After that, the switching lever of the igniter 54 is operated to flow the nitrogen gas from the igniter 54, and the continuity of the entire circuit is confirmed by the flow meter 57 provided on the discharge side of the circuit 59.

Here, if there is a problem, the conduits 38, 40
Adjust so that it can conduct.

If there is no abnormality, fuel gas is pressure-fed to the circuit 59 by the switching lever of the igniter 54, and the oxygen concentration 58 attached to the terminal exhaust port of the circuit 59 has an oxygen concentration of 55% or more (fuel gas combustion is possible. Value).

With the above, preparation for launch is completed.

In this state, if there is a risk of a lightning strike or the like, the circuit 59 can be inactivated by flowing nitrogen gas.

As shown in FIG. 4, the launching is performed by igniting the fuel gas in the circuit 59 in the arming state using the igniter 54.

At this time, the combustion of the fuel gas is 2500 m / s.
It propagates at the speed of ec, and in each igniter 20 for smoke and fire,
From the conduit 38 on the inflow side of the two conduits 38, 40 to the space 3
Igniting charge 35, 36 that propagates in 7 and is connected to space 37
And the fuel in the space 37 propagates from the conduit 40 on the discharge side to the inflow side of the next igniter 20 for smoke and fire.

By the ignition of the igniter 20 for smoke and fire, the fire power moves to the fast fire line 43 for launch fireworks, and from the fast fire line 43 to the launch tube 46.
The propellant (black powder) 49 in the inside is transferred to the fireworks 50 through the ignition port 51 of the fireworks 50, and the fireworks 50 are launched.

As described above, according to this embodiment, not only the continuity of the launch circuit can be checked as in the conventional electric ignition system, but also the danger of explosion due to lightning, which is a drawback of the electric ignition system, is eliminated. It can be an ignition method.

The smoke igniter 20 shown in FIG.
Although the tip 31 of the is sharp, it may be one shown in FIGS. 6 and 7, for example.

The smoke igniter 21 of FIG. 6 has a cylindrical body 30 having a cylindrical shape, and the smoke igniter 22 of FIG.
The diameter of 0 is reduced at the portion of the space portion 37 to form a cylindrical shape having the same diameter from that portion toward the bottom surface.

In the above embodiment, the case of using the fast-fire wire 43 has been described, but a long fuse may be used.

Next, the ignition charge 35 and the ignition charge 3 in FIG.
6 will be described. In the following description, the ignition charge 3
5 and the ignition powder 36 are explained as the same thing.

The ignition charge 35 must be surely ignited by the combustion propagation of the fuel gas.

The composition thereof includes one composed of metallic silicon and lead trioxide (claim 2) and one composed of metallic boron and barium chromate (claim 5).

When the igniter is composed of metallic silicon and lead trioxide, its composition is 10 to 4 metallic silicon.
It comprises 0 parts by weight and 60 to 90 parts by weight of lead trioxide (claim 3). It is preferably composed of 20 to 30 parts by weight of metallic silicon and 70 to 80 parts by weight of lead tetraoxide.

When the igniter is composed of boron metal and barium chromate, the compounding ratio is 2 to 20 parts by weight of metal boron and 80 to 90 parts by weight of barium chromate (claim 6). Preferably, metallic boron 5 to 15
And 85 to 95 parts by weight of barium chromate (claim 7).

These ignition charges 35 are used in the igniter 20 for smoke and fire.
It is necessary to use a binder because it is pressed into
Viton rubber or the like is preferable for those made of metallic silicon and lead trioxide, and weak cotton is preferable for those made of metallic boron and barium chromate.

These binders are easy to handle in combination drugs,
It also has the function of improving safety. The amount of the binder is preferably about 2 to 3% on the outer basis.

Next, experimental results of the ignition charge 35 and the ignition charge 36 will be described with reference to Tables 1 and 2.

Experiment Nos. 1 to 4 in Table 1 are igniting agents and igniting agents based on non-explosive components. Metal boron / barium chromate = 5/95 to 15/85 parts by weight, using a weak cotton pill as a binder. If it is, it is found that the ignition charge 35 in the igniter 20 for smoke and fire is surely ignited by receiving the energy from the combustion propagation of the fuel gas containing methane gas as a main component.

Experiment No. 14 also shows that the non-explosive component is the ignition charge and the ignition charge, but the combustion energy of the fuel gas does not propagate to the ignition charge.

Experiment Nos. 5 to 13 in Table 1 are the igniting agent and the igniting agent based on the explosive component, and metallic silicon / lead tetroxide =
Regardless of 10/90 to 40/60 parts by weight and metallic boron / lead trioxide = 10/90 parts by weight, it has good ignitability and receives energy from combustion propagation of fuel gas mainly composed of methane gas. It was found that the ignition charge 35 in the igniter 20 for smoke and fire certainly ignites.

Experiment Nos. 1 to 11 in Table 2 are metallic boron /
The results when 9 kinds of ignition agents are used for barium chromate = 5/95 are shown.

Experiment Nos. 1 to 4, 6 to 8 and 10 to 11 are
It was found that the ignition charge 35 in the igniter 20 for smoke and fire certainly ignites.

However, in Experiment Nos. 1 to 4 and 6 to 8, the burning speed was high and the embolus 33 came off.

In Experiment Nos. 5 and 9, the ignition charge did not ignite.

In Experiment No. 11, the ignition powder 36 and the ignition powder 35 were used.
The same composition was used.

Experiments Nos. 12 to 15 show the results when the ignition powder 36 having the same composition as the ignition powder 35 of metallic silicon / lead trioxide = 35/65 was used.

There was no problem in any case.

[0079]

[Table 1]

[Table 2]

As described above, according to the first to seventh aspects of the present invention, the fuel gas is not brought into an operable state (arming state) until the fuel gas is pressure-fed, and an inert gas such as nitrogen gas is used. By pumping, it can be confirmed whether the circuit is normal or not.

Since it is not necessary to use a sensitive composition such as an electric igniter, it is very safe in manufacturing and handling.

[0081]

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing an embodiment of a smoke igniter according to claim 1.

FIG. 2 is a cross-sectional view of a launch fireworks launching cylinder using the smoke igniter of FIG.

FIG. 3 is an enlarged view showing an assembled state of the smoke igniter of FIG. 1 and a fast ignition line.

FIG. 4 is an explanatory diagram showing a system for launching the launch fireworks shown in FIG. 2.

5 is a cross-sectional view showing the connection tool in FIG.

FIG. 6 is a cross-sectional view showing an embodiment of the igniter for smoke and fire according to claim 1.

FIG. 7 is a sectional view showing an embodiment of the igniter for smoke and fire according to claim 1.

FIG. 8 is a cross-sectional view of a conventional launch fireworks launch tube.

FIG. 9 is an explanatory view showing a conventional system for launching launch fireworks.

[Explanation of symbols]

 20 Smoke Fire Ignition Tool 30 Ignition Tool Cylindrical Body 31 Tip 33 Embroidery 35 Ignition Charge 36 Ignition Charge 37 Space Part 38,40 Conduit 43 Fast Fire Line 50 Fireworks

Claims (7)

[Claims] 1. An igniter cylinder body having a bottomed cylinder, an igniting charge filled in the igniter cylinder body, an embolus for closing an opening of the igniter cylinder body, the embolus and the point. A igniter for smoke and fire, comprising: a space formed between the powder and explosive; and two conduits for penetration and discharge that penetrate the embolus and transmit a signal due to combustion of fuel gas. 2. The igniter for smoke and fire according to claim 1, wherein the ignition charge is made of metallic silicon and lead trioxide. 3. The igniter for a smoke and fire according to claim 1 or 2, wherein the ignition charge is composed of 10 to 40 parts by weight of metallic silicon and 60 to 90 parts by weight of lead tetraoxide. 4. The igniter for smoke and fire according to claim 1 or 2, wherein the ignition charge comprises 20 to 30 parts by weight of metallic silicon and 70 to 80 parts by weight of lead trioxide. 5. The igniter for smoke and fire according to claim 1, wherein the igniting charge is composed of metallic boron and barium chromate. 6. The igniter for smoke and fire according to claim 1 or 5, wherein the ignition charge comprises 2 to 20 parts by weight of metallic boron and 80 to 90 parts by weight of barium chromate. 7. The igniter for smoke and fire according to claim 1 or 5, wherein the ignition charge comprises 5 to 15 parts by weight of metallic boron and 85 to 95 parts by weight of barium chromate.