JP2011045483A - Fire extinguishing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fire extinguishing device for efficiently extinguishing fires by a small amount of an inert gas. <P>SOLUTION: The fire extinguishing device 1 includes a balloon 2 in which an inert gas is enclosed at a fire, a fire extinguishing auxiliary plate 10 to which the balloon 2 is attached, and a grasping portion 14 provided at the fire extinguishing auxiliary plate 10. In addition, the grasping portion 14 is constituted of a gas fire extinguisher 30 or a supporting rod 35. <P>COPYRIGHT: (C)2011,JPO&amp;INPIT

Description

  The present invention relates to a fire extinguishing tool, and more particularly to a fire extinguishing tool that can extinguish a fire efficiently with a small amount of inert gas.

Conventionally, local fire extinguishing by an inert gas is performed by supplying inert gas to the flame by vigorously releasing the inert gas from a trumpet-like nozzle such as a CO ₂ fire extinguisher, and the fire is mainly caused by the suffocation effect. The fire was extinguished (see, for example, Patent Document 1).

JP 2001-61986 (page 3-4, FIG. 1)

  In the local fire extinguishing system using an inert gas disclosed in Patent Document 1, when the inert gas is radiated from the nozzle toward the flame, air containing ambient oxygen is entrained along the flow of the inert gas. Therefore, there is a problem that the fire extinguishing efficiency is deteriorated and a large amount of inert gas is required.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a fire extinguishing tool that can extinguish a fire efficiently with a small amount of inert gas.

  The fire extinguishing device according to the present invention includes a balloon that is filled with an inert gas in the event of a fire and bursts due to the heat of the flame, a fire extinguishing auxiliary plate to which the balloon is attached, and a grip portion provided on the fire extinguishing auxiliary plate. Is.

Moreover, the fire extinguishing tool which concerns on this invention comprises said grip part with a gas fire extinguisher, and connects the nozzle of this gas fire extinguisher to the balloon attached to the said fire extinguishing assistance board.
Moreover, the fire extinguishing tool which concerns on this invention comprises said holding | grip part by the support bar attached to the said fire extinguishing auxiliary | assistant board so that attachment / detachment was possible.
Furthermore, the fire-extinguishing tool according to the present invention is such that the fire-extinguishing auxiliary plate has a size that is at least half the outer diameter when the balloon is inflated.

  According to the present invention, when a balloon attached with an inert gas and attached to a fire extinguishing auxiliary plate is brought close to a flame with a gripping portion so that the fire extinguishing auxiliary plate is positioned on the balloon, the balloon The inert gas diffuses radially at the same time as it bursts immediately above, so that the surrounding air is not entrained, and the inert gas radiated to the opposite side of the flame is reflected by the fire extinguishing auxiliary plate and mostly reflected Since it is suitable for a flame, it can be extinguished efficiently with a small amount of inert gas, so that a highly reliable fire extinguishing tool can be obtained.

It is explanatory drawing of the fire extinguishing tool which concerns on Embodiment 1 of this invention. It is explanatory drawing which shows the use condition of the fire extinguishing tool of FIG. It is explanatory drawing which shows the use condition of the fire extinguishing tool of FIG. It is explanatory drawing of the fire extinguishing tool which concerns on Embodiment 2 of this invention, and its use condition. It is explanatory drawing which shows the use condition of the fire extinguishing tool which concerns on Embodiment 3 of this invention. It is explanatory drawing of the fire extinguishing tool of FIG.

[Embodiment 1]
FIG. 1 is an explanatory diagram of a fire extinguishing tool according to Embodiment 1 of the present invention.
In the figure, reference numeral 1 denotes a fire extinguishing tool, which is composed of a rubber balloon 2 and a fire extinguishing auxiliary plate 10 to which the balloon 2 is attached. The balloon 2 has a cylindrical mounting portion 4 having a screw on the upper outer periphery. The blowing port 3 of the balloon 2 is fitted and fixed to the lower outer periphery.

  The fire extinguishing auxiliary plate 10 is formed in a polygonal or circular shape such as a quadrangle by a metal plate or a synthetic resin plate, and the outer peripheral edge is bent downward and obliquely outward (side to which the balloon 2 is attached). Is provided. The central portion is provided with a gas supply port 12 having a female screw on the inner periphery of the lower portion and provided with a check valve 13 for allowing an inert gas to pass only on the balloon 2 side at the upper portion. An internal thread of the attachment portion 4 of the balloon 2 is detachably screwed into the female thread of the mouth 12 from below. Reference numeral 14 denotes a gripping portion that is provided on the upper surface of the fire extinguishing auxiliary plate 10 and is gripped by the user. In addition, although the case where the handle 14 is provided with a handle-like object on the upper surface of the fire extinguishing auxiliary plate 10 is shown in the drawing, the user places the position of the balloon 2 under the fire extinguishing auxiliary plate 10 at the time of fire extinguishing. As long as it can be brought into a state, the shape and the mounting position of the grip portion 14 are not particularly limited.

  In the fire extinguishing tool 1 configured as described above, when a fire occurs, as shown in FIG. 2, the attachment portion 4 of the balloon 2 is connected to the gas supply port 12 of the fire extinguishing auxiliary plate 10 and integrated. A nozzle 23 provided in the hose 22 of the gas cylinder 20 filled with the active gas is connected to the gas supply port 12 of the fire extinguishing tool 1 by, for example, press-fitting or the like, and the valve 21 is operated to remove the inert gas in the gas cylinder 20 from the balloon 2. It is supplied into the inside and inflated (indicated by reference numeral 2a). As the inert gas 25, nitrogen, carbon dioxide, Novec 1230, HFC-227ea or the like is used.

  When the balloon 2 is inflated to a desired size by the inert gas 25, for example, approximately the same size as the fire extinguishing auxiliary plate 10 or slightly smaller than that, the nozzle 23 of the gas cylinder 20 is removed from the gas supply port 12. At this time, since the gas supply port 12 is closed by the check valve 13, the inert gas 25 does not leak from the gas supply port 12.

  In this state, when the holding part 14 is held and the balloon 2a is brought close to the flame 40 so as to be sandwiched between the flame 40 and the fire extinguishing auxiliary plate 10 as shown in FIG. The inert gas 25, which bursts right above and is directed to the flame 40 while diffusing, completely covers the flame 40 to shut off the air and extinguish the fire.

  At this time, since the inert gas 25 diffuses radially, surrounding air is not involved. A part of the inert gas 25 radiates to the opposite side, that is, the upper side of the flame 40, but is reflected by the fire extinguishing auxiliary plate 10, and most of the inert gas 25 is directed to the flame 40, and further by the peripheral wall 11. Since diffusion is prevented, the fire can be effectively extinguished with a small amount of inert gas.

In the fire extinguishing tool as described above, the size of the fire extinguishing auxiliary plate 10 is more than half of the outer diameter (for example, 50 cm to 100 cm) when the balloon 2 is inflated, for example, 70% of the outer diameter of the balloon 2. Although it is sufficient that the size of the fire extinguisher is large, it is desirable that the fire extinguishing auxiliary plate 10 is larger than the outer diameter when the balloon 2 is inflated.
The fire extinguishing auxiliary plate 10 may be made of an opaque material, but if it is made of a translucent or transparent material, the fire extinguishing auxiliary plate 10 is visually positioned when the balloon 2a filled with the inert gas 25 is brought close to the flame 40. Can do.

  Further, if the fire extinguishing auxiliary plate 10 is made of a nonflammable material, the balloon 2a is ruptured and the inert gas 25 is released, and then the fire extinguishing auxiliary plate 10 is put on the flame 40 as shown by a broken line in FIG. If the flame 40 is covered, the fire-extinguishing effect can be further enhanced.

In the above description, the balloon 2 is attached to the attachment portion 4 having the male screw and is detachably connected to the gas supply port 12 having the screw to be provided on the fire extinguishing auxiliary plate 10. The attachment to the plate 10 is not limited to this, and other means may be used.
Moreover, although the case where the balloon 2 was attached to the fire extinguishing assistance board 10 when a fire broke out was shown, you may attach the balloon 2 to the fire extinguishing assistance board 10 previously.

Furthermore, when a fire has occurred, the case where an inert gas is supplied to the balloon 2 from a gas cylinder 20 filled with an inert gas has been shown. For example, a fire extinguisher using an inert gas (hereinafter referred to as a gas fire extinguisher). ) May be supplied to the balloon 2.
Moreover, although the case where the nozzle 23 connected to the gas cylinder 20 is press-fitted and connected to the gas supply port 12 of the fire extinguishing tool 1 is shown, it may be connected by other means.

  According to the present embodiment, the balloon 2a in which the inert gas is sealed is ruptured immediately above the flame 40, so that the inert gas 25 in the balloon 2 is diffused radially and the flame is not entrained. 40 can be wrapped. Further, since the inert gas 25 radiated to the opposite side of the flame 40 is reflected by the fire extinguishing auxiliary plate 10 and most of the gas is directed to the flame 40, it can be extinguished efficiently and reliably with a small amount of inert gas. A highly reliable fire extinguishing tool 1 can be obtained.

[Embodiment 2]
FIG. 4 is an explanatory diagram of a fire extinguishing device and a method for using the same according to Embodiment 2 of the present invention. The same parts as those in the first embodiment are denoted by the same reference numerals.
In the present embodiment, the nozzle 32 of the gas fire extinguisher 30 using an inert gas is fixed to the gas supply port 12 (see FIG. 1) of the fire extinguishing tool 1 in which the balloon 2 is previously attached to the fire extinguishing auxiliary plate 10. The fire extinguishing tool 1 and the gas fire extinguisher 30 are integrally configured by connecting and communicating with the balloon 2. In the present embodiment, the grip 14 provided on the fire extinguishing auxiliary plate 10 in Embodiment 1 is omitted, and the gas fire extinguisher 30 is used as the grip.

  In the present embodiment, when a fire occurs, the main part of the gas fire extinguisher 30 integrated with the fire extinguishing tool 1 is held with one hand, the handle 31 is operated with the other hand, and the inside of the balloon 2 An inert gas 25 is supplied to inflate the balloon 2. At this time, a check valve 13 may be provided at the gas supply port 12, or the check valve 13 may be omitted so that the inert gas in the balloon 2a and the gas fire extinguisher 30 is maintained at substantially the same pressure. Also good. The balloon 2 may be removed from the fire extinguishing auxiliary plate 10 and connected to the gas supply port 12 when a fire occurs.

  As in the case of the first embodiment, the balloon 2a having the holding part 14 (the gas fire extinguisher 30) is filled with the inert gas 25 so as to be sandwiched between the flame 40 and the fire extinguishing auxiliary plate 10, and the balloon 2a is held. 2a is brought close to the flame 40 and ruptured to extinguish the fire. In the present embodiment, after the balloon 2a is ruptured, the handle 31 of the gas fire extinguisher 30 is continuously operated to inject the inert gas of the gas fire extinguisher 30 toward the flame 40. .

  In the present embodiment, substantially the same effect as in the first embodiment can be obtained, but furthermore, since the fire extinguishing tool 1 and the gas fire extinguisher 30 are integrated, immediately when a fire occurs. Because it can respond, it can be extinguished earlier. Moreover, since the inert gas in the gas fire extinguisher 30 can be jetted toward the flame 40 as necessary after the balloon 2a has ruptured, the fire can be more reliably extinguished.

[Embodiment 3]
FIG. 5 is an explanatory diagram of a method of using the fire extinguishing tool according to the third embodiment, and FIG. 6 is an explanatory diagram of the fire extinguishing tool of FIG. The same parts as those in the first embodiment are denoted by the same reference numerals.
In the present embodiment, one end of a support bar 35 as a grip 14 is attached to the fire extinguishing tool 1 in which a balloon 2a inflated with an inert gas is filled in the fire extinguishing auxiliary plate 10, and the other end of the support bar 35 is attached. Is used to bring the balloon 2a closer to the flame 40.

  In the fire extinguishing tool 1 according to the present embodiment, as shown in FIG. 6 (a), a sandwiching portion 15 for holding the balloon 2a is provided on the lower surface of the central portion of the fire extinguishing auxiliary plate 10 on the attachment side of the balloon 2a. ing. Further, a substantially L-shaped support bar connecting part 16 is provided on the upper surface side, and a square hole 16a to which the support bar 35 is detachably connected is provided in the horizontal part.

  The support bar 35 is made of wood, a hollow synthetic resin material, or the like and has a predetermined length (for example, 1.5 to 2.0 m) in a cross-sectional shape such as a circular shape or a square shape that can be grasped by a hand. . And when it consists of a round bar, it is desirable to form one end part in a square cross section so that it can connect with the square hole 16a of the support bar connection part 16 of the fire extinguishing auxiliary | assistant board 10. FIG. Thereby, it can prevent that the support bar 35 rotates with respect to the fire extinguishing tool 1. FIG.

  The fire extinguishing tool 1 configured as described above separates the balloon 2, the fire extinguishing auxiliary plate 10, and the support bar 35, and is installed in the vicinity of the gas cylinder 20 and the gas fire extinguisher 30. In order to prevent loss, the balloon 2 may be attached to the fire extinguishing auxiliary plate 10 in advance, and the support bar 35 may be connected to the support bar connecting portion 16.

  In the present embodiment, when a fire occurs, the gas cylinder 20 and the nozzle 23 (32) of the gas fire extinguisher 30 are connected to the blowing port 3 of the balloon 2 in the same manner as in the first and second embodiments. An inert gas is supplied into 2 and inflated. When the balloon 2 becomes a desired size, the blowing port 3 is sealed with the balloon stopper 6 or a one-touch valve (not shown), and the nozzle 23 (32) is removed.

Next, the blowing port 3 of the balloon 2 a is clamped by the clamping unit 15 and attached to the fire extinguishing auxiliary plate 10 to be integrated, and one end of the support bar 35 is inserted into the square hole 16 a of the support bar coupling unit 16 and coupled.
Then, holding the other end of the support bar 35 in the hand, the balloon 2 a filled with the inert gas 25 is brought close to the flame 40 and ruptured. Thereafter, the fire is extinguished by the same action as in the first embodiment. In this case as well, the fire extinguishing auxiliary plate 10 is positioned above the balloon 2a, and the balloon 2a is ruptured with the balloon 2a sandwiched between the fire extinguishing auxiliary plate 10 and the flame 40.

  In the fire extinguishing tool 1 as described above, as shown in FIG. 6B, the support rod connecting portion 16 has a fixing member 17a erected on the upper surface of the fire extinguishing auxiliary plate 10, a square hole 16a, and a pin 17c. The movable member 17b is attached to the fixed member 17a so as to be rotatable and fixable, and the angle of the support bar 35 with respect to the fire extinguishing auxiliary plate 10 can be changed according to the position and size of the flame 40. Also good.

  In the present embodiment, substantially the same effect as in the first embodiment can be obtained, but the fire extinguishing tool 1 is held away from the balloon 2b by the support bar 35, so that it is closer to the flame 40. Even when it is difficult or when the balloon 2a is terribly bursting, the fire extinguishing tool 1 can be operated away from the flame 40, so that the safety of the user is improved and the fear of the balloon 2a bursting can be reduced. Since the size of the flame 40 is various, it is desirable to prepare a plurality of fire extinguishing auxiliary plates 10 having different sizes, and the user can use the extinguishing auxiliary plate 10 larger than the flame 40 according to the size of the flame 40. May be used.

[Experimental example]
A fire extinguishing experiment was conducted using the fire extinguishing tool 1 including the balloon 2 enclosing the inert gas according to the present invention and the fire extinguishing auxiliary plate 10 and the fire extinguishing instrument including only the balloon enclosing the inert gas.
In the experiment, 1 liter of heptane was put in a 50 cm vertical and horizontal fire pan to ignite, and the above fire extinguishing tool was used for a flame in a state after 10 seconds.

(Experiment 1)
First, a rubber balloon that can expand to an outer diameter of 90 cm was used as a balloon that encloses an inert gas. This balloon was sealed with HFC-227ea (heptafluoropropane) as an inert gas until the outer diameter of the balloon reached 50 cm. The balloon was held over the flame of the above-mentioned fire pan and the balloon was ruptured by the heat of the flame, but the fire could not be extinguished.

(Experiment 2)
Next, when a balloon in the same state as the balloon used in Experiment 1 was attached to the fire extinguishing aid plate and the fire extinguishing aid plate was positioned at the top of the balloon, the balloon was held over the flame of the pan, The flame flew from the side of the pan with a delay of 1 second after the explosion, and the fire was completely extinguished.

(Experiment 3)
Next, the same balloon as that used in Experiment 1 was sealed with inert gas until the outer diameter reached 70 cm, and this balloon (without a fire extinguishing aid plate) was held over the flame of the pan to explode. The fire was extinguished as in the case of 2.
From the above experimental results, it was found that a fire can be reliably extinguished with less inert gas by attaching a fire extinguishing auxiliary plate to a balloon filled with inert gas.

  DESCRIPTION OF SYMBOLS 1 Fire extinguishing tool, 2 balloon, 2a Inflated balloon, 4 Attachment part, 10 Fire extinguishing auxiliary plate, 11 Perimeter wall, 12 Gas supply port, 14 Gripping part, 15 Holding part, 16 Support rod connection part, 20 Gas cylinder, 30 Gas fire extinguisher 40 Flame.

Claims (4)

  A fire extinguishing tool comprising a balloon that is filled with an inert gas during a fire and bursts due to the heat of a flame, a fire extinguishing auxiliary plate to which the balloon is attached, and a grip provided on the fire extinguishing auxiliary plate.   The fire extinguishing tool according to claim 1, wherein the gripping part is constituted by a gas fire extinguisher, and a nozzle of the gas fire extinguisher is connected to a balloon attached to the fire extinguishing auxiliary plate.   The fire extinguishing tool according to claim 1, wherein the gripping part is constituted by a support rod having one end detachably attached to the fire extinguishing auxiliary plate.   The fire-extinguishing tool according to any one of claims 1 to 3, wherein the fire-extinguishing auxiliary plate has a size equal to or more than half of an outer diameter when the balloon is inflated.

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