JP7086151B2 - Fire extinguishing equipment, fire extinguishing equipment installation method, and fire extinguishing system - Google Patents

Description

The present disclosure relates to fire extinguishing equipment, fire extinguishing equipment laying methods, and fire extinguishing systems.

Conventionally, a fire extinguishing agent is sealed under pressure, and when a fire extinguishing object fires, the flame exposed from the fire extinguishing object bursts its own outer skin and ejects the fire extinguishing agent filled inside itself. Fire extinguishing tubes are known (see, for example, Patent Document 1).

This type of fire extinguishing tube can be installed near a fire extinguishing object in a maintenance-free state with fire extinguishing ability for a long period of time in a containment facility with limited space around it. In the event of a fire, it is useful in that the fire can be extinguished quickly and automatically.

JP-A-2018-196833 Japanese Unexamined Patent Publication No. 2019-161683

As a disaster prevention measure, the inventors of the present application have considered laying this type of fire extinguishing tube adjacent to a fire extinguishing object in a containment facility extending over a long distance such as a pipeline or a cable rack. ing. Examples of this type of accommodation facility include pipelines such as GP pipes, FRP pipes, or Hume pipes in which a power cable as a fire extinguishing object is arranged. With such disaster prevention measures, it is possible to provide this type of fire extinguishing tube as a fire extinguishing facility covering the entire area of the accommodation facility.

However, in order to realize such disaster prevention measures, it is necessary to pull the fire extinguishing tube into the accommodation facility over a long distance by pulling one end of the fire extinguishing tube with a winch (see FIG. 8 described later). .. At the time of such pulling in, it is necessary to pull out the fire extinguishing tube from the fire extinguishing tool supply source or the like around which the fire extinguishing tube is drum-wound, so that a large tensile load is applied to the fire extinguishing tube. Then, the tensile load acting on the fire extinguishing tube increases as the pull-in distance increases. The outer skin of a fire extinguishing tube is generally made of a special synthetic resin (eg polyethylene) so that it can burst in the event of a fire, has low tensile strength, and brittlely breaks when an excessive tensile load is applied. do. Therefore, the inventors of the present application faced a problem that the fire extinguishing tube may be broken when this kind of fire extinguishing tube is brought into a long-distance containment facility.

The present disclosure has been made in view of the above problems, and an object of the present invention is to provide a fire extinguishing tool, a fire extinguishing tool laying method, and a fire extinguishing system capable of being drawn into and laid in a containment facility over a long distance.

The main disclosure that solves the above-mentioned problems is
It is a fire extinguishing tool that is laid in the storage facility by pulling in.
A fire extinguishing tube that bursts its own outer skin with heat from the outside and releases the fire extinguishing agent filled inside itself.
A first covering material that winds and covers the circumference of the fire extinguishing tube,
A towing rope disposed outside the first covering material and extending in parallel with the fire extinguishing tube.
A second covering material that winds and covers the fire extinguishing tube, the first covering material, and the towing rope so as to integrally hold the fire extinguishing tube, the first covering material, and the towing rope. When,
It is a fire extinguishing tool equipped with.

Also, in other aspects,
It is a method of laying the above fire extinguishing equipment,
The first step of preparing a towing machine having a towing tool at a first point in the storage facility and preparing a fire extinguishing tool supply source having the fire extinguishing tool at a second point in the storage facility.
A second step of pulling out the towing tool from the towing machine and moving it from the first point to the second point in the storage facility.
The third step of attaching the traction tool that has reached the second point to one end of the fire extinguishing tool, and
A fourth step of pulling the towing tool from the second point toward the first point by the towing machine and laying the fire extinguishing tool from the second point to the first point in the storage facility. When,
It is a method of laying a fire extinguishing tool.

Also, in other aspects,
A fire extinguishing system that uses the above fire extinguishing equipment.
With the fire extinguisher
A cylinder connected to at least one of one end or the other end of the fire extinguisher and supplying a fire extinguishing agent into the fire extinguisher.
It is a fire extinguishing system.

According to the fire extinguishing tool according to the present disclosure, it is possible to carry in and lay a fire extinguisher over a long distance.

The figure which shows the structural example of the fire extinguishing system which applied the fire extinguishing tool which concerns on one Embodiment of this invention. The figure which shows the structural example of the fire extinguishing tool which concerns on one Embodiment of this invention. The figure which shows the structural example of the fire extinguishing tool which concerns on one Embodiment of this invention. The figure which shows the appearance of the fire extinguishing tool which concerns on one Embodiment of this invention. An example of an arrangement mode of the inner coating material and the outer coating material of the fire extinguishing tool according to the embodiment of the present invention. The figure which shows an example of the process of covering a fire extinguishing tube with an inner covering material at the time of manufacturing the fire extinguishing tool which concerns on one Embodiment of this invention. The figure which shows an example of the arrangement mode of the 1st bobbin and the 2nd bobbin, and the movement locus in the manufacturing apparatus of the fire extinguishing tool 1 which concerns on one Embodiment of this invention. The figure which shows an example of the laying method at the time of laying the fire extinguishing tool which concerns on one Embodiment of this invention in the pipeline arranged in a bridge.

Preferred embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. In the present specification and the drawings, components having substantially the same function are designated by the same reference numerals, so that duplicate description will be omitted.

<Composition of fire extinguishing equipment>
FIG. 1 is a diagram showing a configuration example of a fire extinguishing system to which the fire extinguishing tool 1 according to the embodiment of the present invention is applied.

The fire extinguishing tool 1 is laid, for example, in a pipeline To (for example, GP pipe, FRP pipe, or Hume pipe) installed in the ground or in a bridge together with a power cable Ca (for example, OF cable) for power transmission. There is. As shown in FIG. 1, the power cable Ca is laid in the pipeline To along the longitudinal direction of the pipeline To. The power cable Ca may generate heat or ignite due to a failure of the power transmission / distribution equipment or a short circuit between the power cables Ca.

The fire extinguishing tool 1 is laid in the pipeline To at a position adjacent to the power cable Ca along the longitudinal direction of the pipeline To. As will be described later, the fire extinguishing tool 1 is mainly composed of a fire extinguishing tube, and when a fire breaks out at any position of the power cable Ca, the fire extinguishing tool 1 is placed in the fire extinguishing tube toward the fire occurrence point of the power cable Ca. The filled fire extinguishing agent is ejected to automatically and promptly extinguish the fire of the power cable Ca.

2, FIG. 3, and FIG. 4 are views showing a configuration example of the fire extinguishing tool 1 according to the embodiment of the present invention. FIG. 2 is a cross-sectional view of a short cross section of the fire extinguishing tool 1, and FIG. 3 is a cross-sectional view of a longitudinal cross section of the fire extinguishing tool 1. FIG. 4 is a diagram showing the appearance of the fire extinguishing tool 1.

FIG. 5 is a diagram showing an example of an arrangement mode of the inner covering material 12 and the outer covering material 14 of the fire extinguishing tool 1.

The fire extinguishing tool 1 includes a fire extinguishing tube 11, an inner covering material 12, a towing rope 13, and an outer covering material 14. FIG. 3 shows one end side of the fire extinguishing tool 1, and the fire extinguishing tube 11, the inner covering material 12, the towing rope 13, and the outer covering material 14 extinguish the fire along the longitudinal direction of the fire extinguishing tool 1. It extends from one end to the other end of the tool 1 (that is, from one end to the other end of the pipeline To).

The fire extinguishing tube 11 bursts its outer skin by the flame exposed from the fire extinguishing object at the time of the fire of the fire extinguishing object (here, the power cable Ca), and ejects the fire extinguishing agent filled in the inside of the fire extinguishing object. The fire extinguishing tube 11 has, for example, an outer skin formed of a resin that melts by heat (for example, a thermoplastic resin), and a fire extinguishing agent (for example, CF ₃ CF ₂ C (O) CF (CF) is contained in the outer skin. ₃ ) The substance represented by the chemical formula of ₂ (ISO registered name FK5-1-12)) is filled under pressure. As the fire extinguishing tube 11, for example, a fire extinguishing tube having the same structure as that of a conventionally known fire extinguishing tube (see, for example, Patent Document 1) can be used. The fire extinguishing tool 1 according to the present embodiment has two fire extinguishing tubes 11 arranged in parallel with each other from the viewpoint of fail-safe.

The fire extinguishing tube 11 is typically a tube having a circular short cross section, but the shape of the short cross section of the fire extinguishing tube 11 is not limited to a circular shape.

The fire extinguishing tube 11 according to the present embodiment is arranged in a state where both ends are connected to a cylinder Bo for injecting a fire extinguishing agent (only the cylinder Bo on one end side is shown in FIG. 1). The fire extinguishing agent supplied from Bo makes it possible to continuously eject the fire extinguishing agent to the place where the fire occurs.

The inner covering material 12 (corresponding to the "first covering material" of the present invention) spirally winds around the two fire extinguishing tubes 11 and integrally holds the two fire extinguishing tubes 11. The inner covering material 12 prevents the two fire extinguishing tubes 11 from twisting each other. Further, the inner covering material 12 has a role of sandwiching the towing rope 13 between itself and the outer covering material 14 to prevent the towing rope 13 from slipping.

The inner covering material 12 has at least two threads 12a and 12b having different winding directions, and the two threads 12a and 12b cover the periphery of the two fire extinguishing tubes 11 in a mesh pattern. (See Figure 5). As a result, the stability of the holding state of the two fire extinguishing tubes 11 is improved, and the deterrence against slippage between the inner covering material 12 and the outer covering material 14 (and the towing rope 13) is improved.

The inner covering material 12 preferably covers substantially the entire area from one end to the other end of the fire extinguishing tube 11 along the longitudinal direction of the fire extinguishing tube 11. The winding pitch of the inner covering material 12 is arbitrary, but it is preferable that the number of pitches is large, and for example, it is preferably 100 times / m or more. As a result, the binding force of the fire extinguishing tube 11 and the towing rope 13 can be increased.

The towing rope 13 is arranged on the outside of the inner covering material 12 and extends in parallel with the fire extinguishing tube 11. The towing rope 13 is a target to be directly towed by the traction machine when the fire extinguishing tool 1 is pulled into the pipeline To, and bears the tension applied when the fire extinguishing tool 1 is pulled into the pipeline To. The towing rope 13 is, for example, a twisted rope formed by twisting a plurality of strands.

The fire extinguishing tool 1 according to the present embodiment has a plurality of towing ropes 13 arranged in parallel with each other from the viewpoint of dispersing the tension applied to each towing rope 13 at the time of towing. The number of towing ropes 13 is set to the same number as the number of fire extinguishing tubes 11 from the viewpoint of improving the arrangement balance with the fire extinguishing tubes 11, and is set to two here. The two fire extinguishing tubes 11 and the two towing ropes 13 are arranged so that the fire extinguishing tubes 11 and the towing ropes 13 are alternately arranged along the circumferential direction in the short cross section of the fire extinguishing tool 1. (See Figure 2). Further, due to such an arrangement, the plurality of fire extinguishing tubes 11 are evenly exposed in the circumferential direction as a whole, so that when the fire extinguishing tool 1 is laid in the pipeline To, there is no direction in which the fire extinguishing tool 1 is not exposed to the fire. ..

The towing rope 13 has a locking portion 13a to which a towing tool of a towing machine can be attached at one end (see FIG. 3). The locking portion 13a is, for example, a ring-shaped eye processing portion formed on one end side of the towing rope 13.

The outer covering material 14 (corresponding to the "second covering material" of the present invention) has two so as to integrally hold the two fire extinguishing tubes 11, the inner covering material 12, and the two towing ropes 13. The fire extinguishing tube 11, the inner covering material 12, and the two towing ropes 13 are spirally wound and covered. Further, the outer covering material 14 has a role of sandwiching the towing rope 13 between itself and the inner covering material 12 to prevent the towing rope 13 from slipping.

The outer covering material 14 has at least two threads 14a and 14b having different winding directions from each other, and the two threads form a mesh of two fire extinguishing tubes 11, an inner covering material 12, and two threads. It covers the circumference of the towing rope 13 (see FIG. 5). This improves the stability of the holding state of the two fire extinguishing tubes 11, the inner covering material 12, and the two towing ropes 13, and the outer covering material 14 and the inner covering material 12 (and the towing rope 13). The deterrence against slipping is improved.

It is preferable that the outer covering material 14 covers substantially the entire area from one end to the other end of the two fire extinguishing tubes 11 and the two towing ropes 13 along the longitudinal direction of the fire extinguishing tube 11. The winding pitch of the outer covering material 14 is arbitrary, but it is preferable that the number of pitches is large, and for example, it is preferably 100 times / m or more. Thereby, the binding force of the towing rope 13 can be increased.

Both the inner covering material 12 and the outer covering material 14 are formed in a mesh shape, and the mesh of the inner covering material 12 and the mesh of the outer covering material 14 have a gap of, for example, about several mm. Therefore, in the event of a fire, the fire extinguishing tube 11 ejects the fire extinguishing agent to the outside of the fire extinguisher 1 from the gap between the inner covering material 12 and the outer covering material 14.

The material of the inner covering material 12, the outer covering material 14, and the towing rope 13 may be any material as long as it is a high-strength fiber (for example, synthetic resin fiber such as nylon, polyester, polypropylene, etc.). As the material of, it is preferable to use ultra-high molecular weight polyethylene fiber.

The ultra-high molecular weight polyethylene fiber has a characteristic that, in addition to having high tensile strength, deformation (that is, tensile strain) with respect to tensile strength is extremely small. That is, by forming the inner covering material 12, the outer covering material 14, and the towing rope 13 with ultra-high molecular weight polyethylene fibers, the fire extinguishing tool 1 is applied to the tension acting when the fire extinguishing tool 1 is drawn into the pipeline To. 1 It is possible to increase the tensile strength as a whole. In addition, when the towing rope 13 is towed, any one of the inner covering material 12, the outer covering material 14, or the towing rope 13 expands and contracts, and the fire extinguishing tube 11 and the inner covering material 12 , It is possible to prevent the outer covering material 14 and the towing rope 13 from being displaced from each other.

The fire extinguishing tool 1 according to the present embodiment is composed of, for example, a fire extinguishing tube 11 having an outer diameter of about 6 mm and a towing rope 13 having an outer diameter of about 4 mm, and has two fire extinguishing tubes 11 and an inner covering material 12. The total outer diameter of the two towing ropes 13 and the outer covering material 14 is approximately 13 mm.

In this embodiment, as an example of the fire extinguishing tool 1, an embodiment composed of two fire extinguishing tubes 11, an inner covering material 12, two towing ropes 13, and an outer covering material 14 is shown. , The number of fire extinguishing tubes 11 and the number of towing ropes 13 are not limited to two. For example, the fire extinguishing tool 1 may have one fire extinguishing tube 11 or three or more fire extinguishing tubes 11. Similarly, the towing rope 13 included in the fire extinguishing tool 1 may be one or three or more. However, even when the fire extinguishing tool 1 has only one fire extinguishing tube 11, it is necessary to sandwich the towing rope 13 between the inner covering material 12 and the outer covering material 14, so that the inner covering material 12 and the inner covering material 12 and the outer covering material 14 need to be sandwiched between the inner covering material 12 and the outer covering material 14. Any outer covering material 14 is required.

However, from the viewpoint of fail-safe, the number of fire extinguishing tubes 11 is preferably a plurality rather than one. On the other hand, if the number of fire extinguishing tubes 11 is three or more, it becomes difficult to bundle the fire extinguishing tubes 11 with the inner covering material 12 while arranging them evenly in the circumferential direction. Further, if three or more fire extinguishing tubes 11 and the same number of towing ropes 13 are alternately arranged along the circumferential direction, the ratio of the outer skin portion exposed to the outside in each fire extinguishing tube 11 becomes small. Therefore, the number of fire extinguishing tubes 11 and the number of towing ropes 13 are preferably two each, as in the case of the fire extinguishing tool 1 according to the present embodiment.

<Manufacturing method of fire extinguishing equipment>
Hereinafter, an example of a method for manufacturing the fire extinguishing tool 1 according to the embodiment of the present invention will be described with reference to FIGS. 6 and 7.

FIG. 6 is a diagram showing an example of a step of covering the fire extinguishing tube 11 with the inner covering material 12. Note that FIG. 6 briefly shows each configuration for ease of understanding.

The manufacturing apparatus of the fire extinguishing tool 1 has a drive device (not shown) for separately driving the first bobbin Ba, the second bobbin Bb, the first bobbin Ba, and the second bobbin Bb.

In the manufacturing apparatus of the fire extinguishing tool 1, the first bobbin Ba is moved around the two fire extinguishing tubes 11 in a state where two fire extinguishing tubes 11 (only one is shown in FIG. 6) are arranged in parallel. While supplying the thread 12a to the first bobbin Ba. Further, in the manufacturing apparatus of the fire extinguishing tool 1, similarly to the first bobbin Ba, the second bobbin Bb is moved around the two fire extinguishing tubes 11 in the direction opposite to the first bobbin Ba, and the second bobbin Bb is second. The bobbin Bb is supplied with the thread 12b. At this time, the manufacturing apparatus gradually moves the two fire extinguishing tubes 11 along the longitudinal direction of the fire extinguishing tubes 11.

As a result, the two threads 12a and 12b having different winding directions wind and cover the circumference of the two fire extinguishing tubes 11, thereby holding the two fire extinguishing tubes 11 integrally. 12 is configured. In other words, this makes it possible to form the inner covering material 12 that covers the periphery of the two fire extinguishing tubes 11 in a mesh pattern.

FIG. 7 is a diagram showing an example of an arrangement mode and a movement locus of the first bobbin Ba and the second bobbin Bb in the manufacturing apparatus of the fire extinguishing tool 1 according to the embodiment of the present invention. Note that FIG. 7 shows the positional relationship between the first bobbin Ba, the second bobbin Bb, and the two fire extinguishing tubes 11 in a plan view.

In FIG. 6, only one first bobbin Ba and one second bobbin Bb are shown, but the manufacturing apparatus of the fire extinguishing tool 1 includes, for example, the first bobbin Ba and the second bobbin Bb, as shown in FIG. , Each may have eight. As a result, it is possible to secure a large number of winding pitches of the inner covering material 12. In FIG. 7, the dotted arrow indicates the movement locus of the eight first bobbins Ba, and the solid line arrow indicates the movement locus of the eight second bobbins Bb.

The step of covering the two fire extinguishing tubes 11, the inner covering material 12, and the two towing ropes 13 with the outer covering material 14 is the same as described above. That is, in the manufacturing apparatus of the fire extinguishing tool 1, the first fire extinguishing tube 11 and the two towing ropes 13 are arranged in parallel, and the directions of the circumferential movements are opposite to each other as in FIG. The outer covering material 14 is formed by supplying the threads 14a and 14b from the bobbin Ba and the second bobbin Bb.

<How to lay fire extinguishing equipment>
Hereinafter, an example of a method of laying the fire extinguishing tool 1 will be described with reference to FIG.

FIG. 8 is a diagram showing an example of an laying method when laying the fire extinguishing tool 1 in the pipeline To arranged on the bridge. In addition, in FIG. 8, by pulling in and laying using the traction machine WQ, the first point To1 in the pipeline To (for example, the position where the manhole of the bridge is arranged) to the second point To2 in the pipeline To (for example, the position where the manhole of the bridge is arranged). , The position where the manhole of the bridge is arranged) is shown.

When laying the fire extinguishing tool 1, first, the towing tool WQa of the towing machine WQ is pulled out from the towing machine WQ, inserted from the first point To1 in the pipeline To, and the second point To2 in the pipeline To. Move to. The method of moving the traction tool WQa may be a conventionally known method, for example, a method of moving by using an air flow in the pipeline To, or a method of moving by inserting into the pipeline To. (For example, refer to JP-A-2019-161683). The towing tool WQa can be pulled out from the towing machine WQ by, for example, a rope wound on a drum around the towing machine WQ.

A fire extinguishing tool supply source U1 on which the fire extinguishing tool 1 is drum-wound is placed in advance at the second point To2 in the pipeline To.

When the traction tool WQa reaches the second point To2 of the pipeline To, the operator pulls out one end of the fire extinguishing tool 1 from the fire extinguishing tool supply source U1 and with respect to the locking portion 13a of the towing rope 13 of the fire extinguishing tool 1. And attach the traction tool WQa. Then, the operator pulls in the towing tool WQa from the second point To2 in the pipeline To toward the first point To1 side by the towing machine WQ, and collects the towing tool WQa. As a result, the fire extinguishing tool 1 can be pulled into the pipeline To. Then, the towing tool WQa is recovered to the first point To1 by the towing machine WQ, so that the fire extinguishing tool 1 is laid from the first point To1 to the second point To2 in the pipeline To.

Here, the difference in stress acting on the fire extinguishing tube 11 will be described between the case where the conventional pull-in laying method is used and the case where the pull-in laying according to the present embodiment is used.

In the conventional pull-in laying method, the towing tool WQa of the towing machine WQ is attached to the fire extinguishing tube 11, and the fire extinguishing tube 11 is pulled into the pipeline To by directly pulling the fire extinguishing tube 11. Therefore, the pulling load from the traction tool WQa to the fire extinguishing tube 11 acts intensively along the axial direction of the fire extinguishing tube 11. As a result, the fire extinguishing tube 11 may break in the axial direction.

In this regard, in the pull-in laying according to the present embodiment, the towing tool WQa is attached to the towing rope 13 (locking portion 13a) of the fire extinguishing tool 1 and the towing rope 13 is pulled to pull the entire fire extinguishing tool 1. Is pulled into the pipeline To. At this time, the towing rope 13 is sandwiched between the outer covering material 14 and the inner covering material 12, and the outer covering material 14 and the inner covering material 12 are caught on each other, so that the towing rope 13 is on the outer side. It is drawn into the pipeline To together with the fire extinguishing tube 11, the outer covering material 14 and the inner covering material 12 without slipping from the covering material 14 and the inner covering material 12.

That is, in the pull-in laying according to the present embodiment, the pulling load from the traction tool WQa to the fire extinguishing tube 11 is transmitted to the fire extinguishing tube 11 as a frictional force between the fire extinguishing tube 11 and the inner covering material 12 via the inner covering material 12. do. Therefore, the stress acting on the fire extinguishing tube 11 is not concentrated along the axial direction of the fire extinguishing tube 11, but is dispersed in various directions. As a result, the fire extinguishing tube 11 is drawn into the pipeline To without breaking in the axial direction.

<Behavior of fire extinguishing equipment in case of fire>
The behavior of the fire extinguishing tool 1 at the time of fire is the same as the behavior of the conventionally known fire extinguishing tube at the time of fire.

The fire extinguishing tool 1 will be left as it is after being laid in the pipeline To. Since the inside of the fire extinguishing tube 11 is shielded from the outside by the outer skin, even if the fire extinguishing tube 11 is installed for a long period of time, the fire extinguishing agent permeates and disperses from the inside of the outer skin to the outside and is lost. However, the fire extinguishing agent has a capacity to extinguish the fire in the fire extinguishing tube 11, and the fire extinguishing tube 11 is maintained in a maintenance-free state and can be extinguished for a long period of time.

When a fire breaks out in the power cable, the fire extinguishing tool 1 is heated by the heat of the fire, and first, the heat cuts off the outer covering material 14 and the inner covering material 12. Then, the outer skin of the fire extinguishing tube 11 is strongly heated in a portion close to the fire, and the mechanical strength is partially reduced. Further, the inside of the fire extinguishing tube 11 becomes high pressure due to the pressure of the gas portion heated by the heat of the fire and expanded, and the vapor pressure of the vaporized fire extinguishing agent. As a result, the portion where the mechanical strength is weakened by the heat of the fire on the outer skin of the fire extinguishing tube 11 bursts, and a hole is opened in the portion. Then, due to the pressure inside the fire extinguishing tube 11, the fire extinguishing agent is ejected from the hole opened by the rupture toward the fire occurrence location, and the ejected fire extinguishing agent wraps the fire and is supplied to the fire. This shuts off the air, cools the fire, and chemically suppresses the combustion reaction to extinguish the fire.

<Effect>
As described above, the fire extinguishing tool 1 according to the present embodiment is
A fire extinguishing tube 11 that bursts its own outer skin and releases the fire extinguishing agent filled inside itself when exposed to a flame from the outside.
An inner covering material 12 that winds and covers the periphery of the fire extinguishing tube 11 and
A towing rope 13 disposed on the outside of the inner covering material 12 and extending in parallel with the fire extinguishing tube 11.
An outer covering material 14 that winds and covers the fire extinguishing tube 11, the inner covering material 12, and the towing rope 13 so as to integrally hold the fire extinguishing tube 11, the inner covering material 12, and the towing rope 13.
It is equipped with.

Therefore, according to the fire extinguishing tool 1 according to the present embodiment, it is possible to suppress the intensive stress generation in the axial direction of the fire extinguishing tube 11. As a result, it is possible to realize high tensile strength as a whole of the fire extinguishing tool 1, and the fire extinguishing tube 11 can be pulled in and laid even in the long-distance pipeline To.

(Other embodiments)
The present invention is not limited to the above embodiment, and various modifications can be considered.

In the above embodiment, as an example of the arrangement mode of the fire extinguisher 1, the aspect in which the end portion of the fire extinguishing tube 11 is arranged in a state of being connected to the cylinder Bo for injecting the fire extinguishing agent is shown. However, the fire extinguisher 1 does not necessarily have to be connected to the cylinder Bo for injecting the fire extinguishing agent. For example, the fire extinguisher 1 may be arranged in a state where the fire extinguishing agent is compressed inside and both ends are closed by the lid member, instead of such an embodiment.

Further, in the above embodiment, the pipeline To is shown as an example of the storage facility to which the fire extinguishing tool 1 is applied. However, the fire extinguishing tool 1 is applicable not only to the pipeline To but also to various storage facilities that require laying work by pulling in. For example, the fire extinguishing tool 1 can also be applied to a cable rack. Further, what the fire extinguishing tool 1 targets for extinguishing a fire is not limited to a power cable, but may be a communication cable or the like.

Although specific examples of the present invention have been described in detail above, these are merely examples and do not limit the scope of the claims. The techniques described in the claims include various modifications and modifications of the specific examples exemplified above.

According to the fire extinguishing tool according to the present disclosure, it is possible to bring the fire extinguishing tool into the containment facility over a long distance.

1 Fire extinguishing tool 11 Fire extinguishing tube 12 Inner covering material 13 Towing rope 14 Outer covering material To pipeline Ba 1st bobbin Bb 2nd bobbin Bo bomb WQ traction machine WQa traction tool

Claims (11)

It is a fire extinguishing tool that is laid in the storage facility by pulling in.
A fire extinguishing tube that bursts its own outer skin with heat from the outside and releases the fire extinguishing agent filled inside itself.
A first covering material that winds and covers the circumference of the fire extinguishing tube,
A towing rope disposed outside the first covering material and extending in parallel with the fire extinguishing tube.
A second covering material that winds and covers the fire extinguishing tube, the first covering material, and the towing rope so as to integrally hold the fire extinguishing tube, the first covering material, and the towing rope. When,
A fire extinguisher equipped with. The first coating material and the second coating material are each formed in a mesh shape by at least two threads having different winding directions from each other.
The fire extinguishing tool according to claim 1. Equipped with multiple fire extinguishing tubes
The first coating material integrally holds a plurality of the fire extinguishing tubes.
The fire extinguishing tool according to claim 1 or 2. Equipped with multiple tow ropes
The second covering material includes a plurality of the fire extinguishing tubes, the first covering material, and the like, so as to integrally hold the plurality of the fire extinguishing tubes, the first covering material, and the plurality of towing ropes. And winding and covering around the plurality of the towing ropes,
The fire extinguishing tool according to claim 3. The plurality of fire extinguishing tubes and the plurality of towing ropes are arranged so that the fire extinguishing tubes and the towing ropes are alternately arranged along the circumferential direction in the short cross section of the fire extinguishing tool.
The fire extinguishing tool according to claim 4. The number of the fire extinguishing tubes is two, and the number of the towing ropes is two.
The fire extinguishing tool according to claim 5. The first coating material, the second coating material, and the towing rope are formed of ultra-high molecular weight polyethylene fibers.
The fire extinguishing tool according to any one of claims 1 to 6. The towing rope has a locking portion at one end to which a towing tool of a towing machine can be attached.
The fire extinguishing tool according to any one of claims 1 to 7. The containment facility is a conduit or cable rack,
The fire extinguishing tool according to any one of claims 1 to 8. The method of laying the fire extinguishing tool according to any one of claims 1 to 9.
The first step of preparing a towing machine having a towing tool at a first point in the storage facility and preparing a fire extinguishing tool supply source having the fire extinguishing tool at a second point in the storage facility.
A second step of pulling out the towing tool from the towing machine and moving it from the first point to the second point in the storage facility.
The third step of attaching the traction tool that has reached the second point to one end of the fire extinguishing tool, and
A fourth step of pulling the towing tool from the second point toward the first point by the towing machine and laying the fire extinguishing tool from the second point to the first point in the storage facility. When,
How to lay fire extinguishing equipment. A fire extinguishing system using the fire extinguishing tool according to any one of claims 1 to 9.
With the fire extinguisher
A cylinder connected to at least one of one end or the other end of the fire extinguisher and supplying a fire extinguishing agent into the fire extinguisher.
Has a fire extinguishing system.

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