JP3651505B2 - Fire extinguishing method and fire extinguishing apparatus - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a fire extinguishing method and a fire extinguishing apparatus.
[0002]
[Prior art]
In buildings such as cultural assets that have plant roofs such as thatch, tanning, and thatch, sparks generated by nearby fires and sparks from bonfires are carried by the wind and fall to the roof, which causes the roof to burn However, there are many cases of fire.
[0003]
For this reason, in this type of building, a fire hydrant device is provided around the building, or in some cases, a water curtain device that surrounds the building with a water curtain is provided.
[0004]
[Problems to be solved by the invention]
Since the water curtain device forms a water curtain around the building, it is an effective fire protection means against flying sparks. However, since the installation cost is very expensive and maintenance is difficult, the fact is that it is used only in some buildings. In addition, the water curtain device is effective against sparks, but when the sparks ignite the inside of the roof, that is, when a deep fire occurs, there is a problem that it takes time to extinguish. This is because oil is oozing out from the inside of the roof material of the plant roof, and water does not easily enter the interior by this oil.
[0005]
Even if the hose of the fire hydrant device is used to discharge water to the roof, water is applied to the surface of the roof, but it does not readily penetrate into the deep part of the roof due to oil on the surface of the roofing material.
[0006]
In addition, when a fire occurs in the deep part of the roof, the fire spreads to the roof surface (outside) side and the attic side. For fires that spread to the roof surface side, it is effective to use a water curtain with a water curtain device or a hose of a fire hydrant device, but for fires that spread to the attic side, pieces of fired roofing material are It will fall to the top and indoors and spread the fire in the building.
[0007]
In view of the above points, an object of the present invention is to provide a fire extinguishing method and a fire extinguishing apparatus for preventing a fire from spreading in a building by an ignited roof material falling from the roof into the building.
[0008]
In addition, the purpose is to prevent fires from spreading into the building by the ignited roof material falling from the roof into the building, and to prevent deep fire by infiltrating the extinguishing liquid from the outside of the roof to the inside of the roof. To do.
[0009]
Moreover, it aims at providing the fire extinguishing apparatus suitable for the said objective.
[0010]
[Means for Solving the Problems]
The fire extinguishing method according to the present invention is a fire extinguishing method for a building having a plant roof, in which a ceiling material having air permeability that constitutes an attic together with the plant roof is provided in advance, and the attic is filled with a fire extinguishing foam during a fire. It is characterized by this.
[0011]
In addition, in the event of a fire, in addition to filling the attic with the fire-extinguishing foam, the wet roof material is further sprinkled on the surface of the plant roof.
[0013]
The fire extinguishing apparatus according to the present invention is a fire extinguishing apparatus for a building having a plant roof, the fire fighting foam supply apparatus supplying fire fighting foam to the attic of the building, and the fire fighting foam supplied to the attic. And a ceiling material having air permeability for filling the inside.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of a fire extinguishing method and a fire extinguishing apparatus according to the present invention will be described with reference to the drawings.
[0016]
In FIG. 1 to FIG. 3, reference numeral 10 denotes a building having a roof 11 that is planted, for example, thatched or thatched, and 12 is a windbreak portion provided on the top of the roof 11. In addition, as shown in FIG. 3, in the case where the ceiling in the building 10 is a lattice ceiling 13 in which the inner surface side of the roof 11 can be seen through, or a building in which no ceiling member is provided, a fire-extinguishing foam described later is supported. At the same time, as a ceiling material 14 for ensuring air permeability, a punching metal having a small hole diameter, or a punching metal having a large hole diameter or a metal mesh with a breathable curtain is installed. In addition, as shown in FIG. 2, when a ceiling board 15 is provided in the building 10, the ceiling material 15 supports the fire-fighting foam on the back side of the ceiling board 15 when the strength of the ceiling board 15 is weak. 14 is provided, and the ceiling plate 15 is used as a ceiling material for supporting the fire-extinguishing foam when it is sufficient to support the fire-extinguishing foam filled with the ceiling board 15.
[0017]
21 is a fire hydrant box containing a hose 22 installed around the building 10, and 26 is a water hydrant for a fire brigade provided in the vicinity of the building.
[0018]
31 is a mobile engine-driven foam generator, 32 is a foam stock solution tank containing a foam stock solution for fire extinguishing such as a surfactant, 33 is a manual valve, 34 is a water supply hose, and 35 is a water supply hose 34. Is a connecting tool for connecting to the water supply valve 23, the water supply cock 26, etc. Further, 36 sucks the foam stock solution from the foam stock solution tank 32 by the action of the water supplied from the water supply hose 34, and supplies the foam stock solution to the foam generator 31 by mixing the foam stock solution and water at a predetermined ratio. The mixing machine 37 is a telescopic bellows-type foam guide cylinder that guides the foam generated by the foam generator 31 to a predetermined location. An opening portion such as a ventilation window described later is provided at the tip of the foam guide cylinder 37. A hooking tool (not shown) is provided for fixing to. The foam stock solution tank 32, the manual valve 33, and the mixer 36 are configured as one unit in order to measure the ease of transportation and operation. Note that this unit may be incorporated in the bubble generator 31. In this embodiment, the foam generator 31, the foam stock solution tank 32, the water supply hose 34, the mixer 36 and the foam guide cylinder 37 constitute a fire extinguishing foam supply device.
[0019]
41 is a water discharge nozzle, 42 is a hose, 43 is a wetting agent tank containing a wetting agent, and 44 is a connection tool for connecting the hose 42 to the water supply valve 23 and the water tap 26 of the fire hydrant box 21. A mixer 45 sucks up the wetting material from the wetting material tank 43 by the action of the water supplied from the hose 42, mixes the wetting material with water at a predetermined ratio, and supplies it to the water discharge nozzle 41. In addition, as the wetting agent, for example, a drug mainly composed of alkyl sulfate amine, sodium alkylnaphthalene sulfonate, polyoxyethylene alkyl ether or the like, for example, a surfactant is used.
[0020]
Next, the operation in this embodiment will be described. When a fire occurs near the building 10, the engine-driven foam generator 31 is carried to the vicinity of the building 10 and the foam guide tube 37 connected to the foam generator 31 is moved. It extends | stretches and the hooking tool which is not shown provided in the front-end | tip is hooked on the ventilation window 16 provided in the windbreak part 12 of the roof 11, and is fixed. Moreover, while connecting the mixer 36 to the foam generator 31, the water supply hose 34 connected to the mixer 36 is connected to the water supply valve 23 of the fire hydrant box 21 by the connection tool 35, and the water supply valve 23 is opened. The water supply hose 34 may be connected to the water tap 26. Then, the engine (not shown) of the foam generator 31 is started to rotate the blower fan, and the manual valve 33 near the mixer 36 is opened.
[0021]
Thus, water is supplied from the fire hydrant box 21 to the mixer 36, and the mixer 36 sucks out the foam stock solution from the foam stock solution tank 32 by the action of the supplied water, and the water and the foam stock solution are mixed at a predetermined ratio. A foam mixture is generated and supplied to the foam generator 31.
[0022]
In the foam generator 31, the foam mixture supplied from the mixer 36 is sprayed from a nozzle (not shown) to a foam net (not shown), and the foam mixture sprayed to the foam net is used for extinguishing fire with a large amount of air supplied by a blower fan. The foam is foamed with high foaming of about 100 times or more, for example, 500 times. The fire-extinguishing foam generated in a large amount in this way passes through the foam guide tube 37 and is supplied from the ventilation window 16 to the attic 17, and the attic 17 is filled with the fire-extinguishing foam as shown in FIG. 2 or FIG. 3. Thereby, even if the members of the roof 11 are burned by a spark or the like and the sparks fall to the attic 17, the sparks are extinguished by the fire extinguishing foam and fall into the ceiling board 15 (FIG. 2) or the room (FIG. 3). Nothing will happen.
[0023]
In the foam for fire extinguishing filled in the attic 17, the foam in contact with the inner surface of the roof 11 is crushed by the foams supplied one after another to disappear and return to the foam mixture. The foam mixture thus produced penetrates into the interior of the roof 11 without being repelled by the oil that has oozed out on the surface of the roof member due to the action of the foam stock solution contained in the mixture. As a result, since the part near the attic of the member of the roof 11 is moistened by the foam mixed solution, ignition in the deep part of the roof 11 is prevented.
[0024]
Further, the hose 42 provided with the mixer 45 in the middle is connected to the faucet 26 by the connecting tool 44. Then, the water discharge nozzle 41 is held and directed to the roof 11, and the opening / closing valve (not shown) of the water tap 26 is opened.
[0025]
Thereby, the mixer 45 sucks out the wetting material from the wetting material tank 43 by the water supplied from the water tap 26 and mixes the wetting material with water at a predetermined ratio, and the mixed solution is directed from the water discharge nozzle 41 toward the roof 11. The water is discharged.
[0026]
The mixed liquid discharged and sprinkled on the roof 11 is not repelled by the oil even if the oil component oozes out on the surface of the roof material such as the straw or the crust by the action of the wetting material. For this reason, the mixed liquid penetrates into the inside from the surface of the roof 11 and prevents the sparks flying from the outside from entering the inside of the roof 11 to ignite the roof material, or suppresses the expansion of the fire.
[0027]
In the above description, in order to fill the attic 17 with the fire-extinguishing foam, the fire-extinguishing foam is injected into the attic 17 from the ventilation window 16 of the windbreak part 12 of the roof 11. You may make it inject | pour a fire extinguishing foam from the opening part for entering into the attic provided in the ventilation part provided, the ventilation window provided in the ceiling material 14 or the ceiling board 15, etc. . As the fire-extinguishing foam, a highly foamed foam having a foaming ratio of about 100 times or more may be used.
[0028]
Moreover, although the case where the liquid mixture of the wetting material is performed on the surface of the roof 11 with a hand-held water discharge nozzle has been described, for example, a pop-up water discharge gun is provided around the building 10 in a vertical hole, and the water discharge gun is hydraulically operated in the event of a fire. You may make it pop up by etc. and let the liquid mixture of a wetting material be discharged from a water spray gun.
[0029]
【The invention's effect】
In the fire extinguishing method of the present invention, the roof material with a fire of the plant roof is formed by filling the attic formed by the plant roof of the building having the plant roof and the ceiling material having air permeability with the foam for fire extinguishing. Even if it falls, the fire is immediately extinguished by the filled fire-fighting foam, so the fire does not spread inside the building. In addition, by making the ceiling material breathable, the breathability between the inside and outside of the building through the openings such as ventilation windows provided in the roof part can be maintained in the state before the fire extinguishing device is installed. Can be secured.
[0030]
And, in addition to filling the attic of the building having a plant roof with fire extinguishing foam, the surface of the plant roof is sprinkled with a mixed liquid of a wetting material. Even if it falls, it is immediately extinguished by the filled fire-extinguishing foam, and the mixture of wetting material sprayed on the roof surface penetrates into the roof, preventing deep fires as well as roof surface fires. You can extinguish the fire.
[0031]
Moreover, the fire extinguishing apparatus of the present invention includes a fire-fighting foam supply apparatus that supplies fire-fighting foam to the attic of a building having a plant roof, and a ceiling material for filling the firefighting foam supplied to the attic into the attic. Therefore, with a simple configuration, it is possible to surely fill the attic with fire-fighting foam, prevent fire due to falling of the lit roofing material, and the ceiling material has air permeability. As a result, air permeability between the inside and outside of the building through an opening such as a ventilation window provided in the roof portion can be ensured before the fire extinguishing device is installed.
[Brief description of the drawings]
FIG. 1 is a configuration diagram illustrating one embodiment of the present invention.
FIG. 2 is a cross-sectional view of the building shown in FIG.
FIG. 3 is another cross-sectional view of the building of FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Building 11 Plant roof 12 Windbreak part 14 Ceiling material 16 Ventilation window 21 Fire hydrant box 26 Water faucet 31 Foam generator 32 Foam stock tank 33 Manual valve 34 Water supply hose 35 Connector 36 Mixer 41 Water discharge nozzle 42 Hose 43 Wet material tank 44 Connector 45 Mixer

Claims (3)

A fire extinguishing method of building with plants roof, the advance provided ceiling material having air permeability constituting the attic with plant roofs, fire extinguishing method which comprises causing filled extinguishing foam into the attic a fire . A fire, in addition to be filled extinguishing foam into the attic, further fire extinguishing method of claim 1, wherein the to sprinkling a mixture of wetting agent on the surface of the plant roof. A fire extinguisher for a building having a plant roof, the fire-fighting foam supply device for supplying a fire-fighting foam to the attic of the building, and the breathability for filling the fire-fighting foam supplied to the attic into the attic A fire extinguishing apparatus, comprising:

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