WO2017187792A1

WO2017187792A1 - Aerosol fire extinguishing device

Info

Publication number: WO2017187792A1
Application number: PCT/JP2017/008715
Authority: WO
Inventors: 富山　昇吾; 昭光吉川; 山本　弘幸; 勇希高塚; 辰基遠藤; 瑞記東
Original assignee: ヤマトプロテック株式会社
Priority date: 2016-04-28
Filing date: 2017-03-06
Publication date: 2017-11-02
Also published as: TW201801766A; TWI711475B; JP6884960B2; JPWO2017187792A1

Abstract

The objective of the present invention is to provide an aerosol fire extinguishing device which can be assembled using a small number of components, and the manufacturing cost of which can be suppressed. The present invention relates to an aerosol fire extinguishing device characterized in being provided with: a container which exhibits a cylindrical shape and which has in one end portion thereof a surface in which an aerosol ejection hole is formed; a fire extinguishing agent which is accommodated in the container in the vicinity of the other end portion thereof, and which generates the aerosol by combustion; an igniter which ignites the fire extinguishing agent; a coolant layer which is accommodated in the container, closer to said surface than is the fire extinguishing agent, and which contains a coolant that cools the aerosol generated from the fire extinguishing agent; a spacer which separates the fire extinguishing agent from the coolant layer; and a guiding portion which is formed between the coolant layer and said surface of the container, and which guides the aerosol in such a way that the aerosol is ejected from the ejection hole in a prescribed ejection direction.

Description

Aerosol fire extinguishing system

The present invention relates to an aerosol fire extinguishing apparatus capable of extinguishing or suppressing a fire by generating an aerosol by combustion.

There is known an aerosol fire extinguishing apparatus that extinguishes or suppresses a flame by burning an extinguishing agent to generate an aerosol and injecting the aerosol (for example, Patent Document 1). Such an aerosol fire extinguishing device includes a large number of assembly parts such as an outer cylinder, an inner cylinder, a fire extinguishing chemical pellet, an igniter, two coolant layers made of coolants of different sizes, and three spacers. The fire extinguishing agent pellets and the two coolant layers are accommodated in the outer cylinder in a state of being mounted inside the inner cylinder.

Japanese Patent Laying-Open No. 2015-123277

However, the aerosol fire extinguishing apparatus as proposed in Patent Document 1 requires a large number of parts and has a complicated structure, so that it takes time to assemble and increases the manufacturing cost. .

Therefore, an object of the present invention is to provide an aerosol fire extinguishing apparatus that can be assembled with a small number of parts, has a simple structure, and can reduce manufacturing costs.

In order to solve the above-described problems, the present invention has a cylindrical shape and has a surface having an aerosol injection hole formed at one end thereof, and is stored in the vicinity of the other end portion of the container and burned. A fire extinguishing agent that generates the aerosol, an igniter that ignites the fire extinguishing agent, and a cooling material that is housed on the surface side of the fire extinguishing agent in the container and that cools the aerosol generated from the fire extinguishing agent. A material layer, a spacer that separates the extinguishing agent and the coolant layer, and formed between the coolant layer and the surface of the container, and the aerosol is ejected from the ejection hole along a predetermined ejection direction. There is provided an aerosol fire extinguishing apparatus comprising: a guide unit that guides the aerosol so that it is ejected;

In the aerosol fire extinguishing apparatus of the present invention having the above-described configuration, it is preferable that the ignition chemical has a recess for mounting the igniter.

Moreover, in the aerosol fire extinguishing apparatus of the present invention having the above-described configuration, the container is formed integrally with the container at at least one of the one end and the other end. It is preferable to have a flange.

Moreover, it is preferable that the aerosol fire extinguishing apparatus of the present invention having the above-described configuration further includes a cover that is attached so as to cover the flange and seals the inside of the container.

Further, the aerosol fire extinguishing apparatus of the present invention having the above-described configuration further includes a sealing material that seals the ejection hole and ejects the aerosol from the ejection hole when the internal pressure of the container exceeds a predetermined pressure. It is preferable to have.

Moreover, in the aerosol fire extinguishing apparatus of the present invention having the above-described configuration, the igniter has an igniter containing a metal and at least one of a metal oxide and a metal peroxide. preferable.

Moreover, in the aerosol fire extinguishing apparatus of the present invention having the above-described configuration, it is preferable that the container is a single member integrally molded.

Moreover, in the aerosol fire extinguishing apparatus of the present invention having the above-described configuration, it is preferable that the igniter has a connector for connecting the igniter to a lead wire.

Further, in the aerosol fire extinguishing apparatus of the present invention having the above-described configuration, the extinguishing agent contains potassium chlorate, and the DSC evaluation (100 to 400 ° C., 10 ° C./min heating) endothermic peak total amount is 100 J / g to 900 J / G.

According to the present invention, the aerosol fire extinguishing apparatus can be assembled with a small number of parts, and the manufacturing cost can be suppressed with a simple structure.

It is the schematic of the aerosol fire extinguishing apparatus which concerns on 1st Embodiment of this invention. It is the schematic of the aerosol fire extinguishing apparatus which concerns on 2nd Embodiment of this invention.

Hereinafter, typical embodiments of the fire extinguisher composition and the aerosol generation automatic fire extinguishing apparatus of the present invention will be described in detail with reference to the drawings. The present invention is not limited to these drawings. Moreover, since the drawings are for conceptual description of the present invention, the dimensions, ratios, or numbers may be exaggerated or simplified as necessary for easy understanding.

[First Embodiment]
<Overall configuration of aerosol fire extinguishing device>
With reference to FIG. 1, the aerosol fire extinguishing apparatus 1 which concerns on 1st Embodiment is demonstrated. The aerosol fire extinguishing apparatus 1 according to the first embodiment is a fire extinguishing apparatus of a type provided so as to protrude from the installation surface 90. As shown in FIG. 1, the container 11, the extinguishing agent 12, the igniter 13, and the coolant layer 14, a spacer 15, and a sealing material 16. Hereinafter, each component of the aerosol fire extinguishing apparatus 1 is demonstrated in order.

(container)
The container 11 is a cylindrical member that houses the fire extinguishing agent 12, the coolant layer 14, the spacer 15, and the sealing material 16. The container 11 is made of, for example, a metal material such as aluminum or stainless steel so that it can withstand an internal pressure (for example, 5 MPa) that rises due to generation of aerosol, which will be described later.

The container 11 has an opening at the end on the installation surface 90 side, and has a flange 21 extending from the edge forming the opening. The flange 21 is provided to fix the container 11 to the installation surface 90 with

bolts

41 and 42, for example, and is formed integrally with the main body of the container 11. Therefore, it is not necessary to separately prepare a jig for attaching the container 11 to the installation surface 90.

The opening of the container 11 is sealed by a cover 17 that is mounted so as to cover the flange 21. The cover 17 may be fixed to the flange 21 by fixing means such as screwing, adhesive, or caulking. Further, the cover 17 may be attached to the installation surface 90 in a state of being separated from the installation surface 90 in order to suppress heat generated by the combustion of the extinguishing agent 12 from being transmitted to the installation surface 90 via the cover 17. A hole 28 for inserting the ignition tool 13 is formed in the cover 17.

The other end of the container 11, that is, the end opposite to the opening is covered with the bottom surface 22.

Aerosol ejection holes

23 and 24 are formed on the bottom surface 22. The bottom surface 22 is also formed integrally with the main body of the container 11.

The inner diameter of the container 11 is reduced on the way from the opening toward the bottom surface 22 to form a step 25. In other words, the step 25 is formed by squeezing the container 11 on the way from the opening to the bottom surface 22. The inner surface of the container 11 from the step 25 to the bottom surface 22 (more precisely, the sealing material 16) constitutes a guide portion 26, and aerosol is ejected from the

ejection holes

23 and 24 in the ejection direction A of FIG. It plays the role of guiding the aerosol. The length of the guide portion 26 in the extending direction is the directivity required for the aerosol ejected from the aerosol fire extinguishing apparatus 1, that is, how far the aerosol needs to reach the fire extinguishing object from the aerosol fire extinguishing apparatus 1. May be determined according to

In this embodiment, the container 11 is composed of only one cylinder, and a stored item such as a fire extinguishing agent 12 is directly attached to the container 11. That is, an inner container for holding the stored items is not required. Therefore, the assembly can be simplified and the cost can be reduced.

(Extinguishing agent)
The fire extinguisher 12 is stored in the container 11 in the vicinity of the opening, and generates aerosol by combustion. The fire extinguisher 12 may be a non-chemical composition containing potassium chlorate and an aerosol-generating component, and has a disk shape in this embodiment. The composition of the fire extinguishing agent 12 will be described later.

The extinguishing agent 12 has a recess (concave portion) 31 for mounting the igniter 13 on the surface facing the opening. The recess 31 does not penetrate to the surface on the bottom surface 22 side and is configured not to expose the igniter 13 to the bottom surface 22 side. That is, the depth of the recess 31 is smaller than the thickness of the extinguishing agent 12. With this configuration, it is possible to prevent sparks or flames that can be ejected from the igniter 13 from jumping out from the

ejection holes

23 and 24. By preventing this, the inside of the container 11 can be effectively used to reliably guide the aerosol. Further, such a configuration is advantageous in terms of simplification of the structure and cost reduction, compared with a structure in which a fire transfer tool is inserted into the hole with a through structure.

The fire extinguishing agent 12 is in contact with the wire mesh 18 on the bottom 22 side surface. Therefore, the fire extinguishing agent 12 is sandwiched between the cover 17 and the wire mesh 18. The wire mesh 18 is made of a material having good air permeability, like the wire meshes 33 and 34 described later. Therefore, the aerosol generated in the fire extinguisher 12 passes through the wire mesh 18 and flows into the coolant layer 14.

(Ignition tool)
The igniter 13 is attached to the depression 31 of the extinguishing agent 12 through the hole 28 of the cover 17 and ignites the extinguishing agent 12 so as to generate aerosol. The igniter 13 may be a known initiator or detonator, for example. Note that a thermal sensor (not shown) may be provided in order to transmit the fire occurrence to the igniter 13 to operate.

(Coolant layer)
The coolant layer 14 is a member housed on the bottom surface 22 side of the fire extinguishing agent 12 in the container 11, and includes a coolant 32 and wire meshes 33 and 34 that hold the coolant 32. In the present embodiment, the coolant layer 14 has a disk shape or a columnar shape as a whole, and the diameter thereof is smaller than the inner diameter (larger inner diameter) on the opening side of the container 11, and the inner diameter ( The smaller inner diameter). Therefore, the coolant layer 14 is locked to the step 25 formed in the container 11.

The cooling material 32 cools the aerosol generated from the fire extinguishing agent 12. The coolant 32 may be a sphere made of an inorganic oxide such as alumina, silica, or heat-resistant ceramic, or may be a metal granule. Alternatively, the coolant 32 may have a cylindrical shape or a cylindrical hollow shape. In the present embodiment, a plurality of alumina balls constitute the coolant 32.

Metal meshes 33 and 34 hold the coolant 32 in between. The metal nets 33 and 34 may be formed, for example, by knitting a metal wire into a mesh or mesh. By fixing the plurality of spheres constituting the coolant 32 with the metal meshes 33 and 34, variations in height of each member such as the coolant 32 can be absorbed. The wire nets 33 and 34 may be, for example, a foamable polymer material or a metal leaf spring.

Since the metal meshes 33 and 34 have a mesh shape or a mesh shape as described above, gas can pass therethrough. Therefore, the aerosol that has flowed into the wire mesh 33 from the opening side passes between the alumina balls (coolant 32), passes through the wire mesh 34, and escapes to the bottom surface 22 side.

In this embodiment, only one coolant layer 14 is provided. Therefore, for example, the structure is simple as compared with an aerosol fire extinguishing apparatus having two coolant layers each including large and small alumina balls, which facilitates assembly and leads to cost reduction.

(Spacer)
The spacer 15 is provided between the fire extinguishing agent 12 (metal mesh 18) and the coolant layer 14, and separates both members. The spacer 15 may be, for example, a ring member disposed along the inner peripheral surface of the container 11 and has a certain thickness so that the extinguishing agent 12 and the coolant layer 14 are separated by a certain distance.

(Seal material)
The sealing material 16 seals the ejection holes 23 and 24 on the bottom surface 22 and causes the aerosol to be ejected from the ejection holes 23 and 24 when the internal pressure of the container 11 exceeds a predetermined value. The sealing material 16 is a waterproof / oilproof / moistureproof sealant and may have, for example, an aluminum layer of 30 to 80 μm and a 50 μm pressure-sensitive adhesive layer.

<Fire extinguisher composition>
Here, the fire extinguisher composition used in the present embodiment will be described. As a fire extinguisher composition, various fire extinguisher compositions can be used regardless of whether they belong to the classification of explosives or not. Among them, the extinguishing agent 12 in this embodiment includes, for example, 20 to 50% by mass of fuel (component A) and 80 to 50% by mass of chlorate (component B), and further includes the fuel and the chlorate. A fire extinguisher composition containing 6 to 1000 parts by mass of potassium salt (component C) and having a thermal decomposition starting temperature in the range of more than 90 ° C. to 260 ° C. is preferably used with respect to 100 parts by mass of the total amount of Can do.

The fuel as the A component is a component for generating aerosol (potassium radical) derived from the potassium salt of the C component by generating thermal energy by combustion together with the chlorate as the B component.

Examples of such component A fuels include dicyandiamide, nitroguanidine, guanidine nitrate, urea, melamine, melamine cyanurate, Avicel, guar gum, sodium carboxymethylcellulose, carboxymethylcellulose potassium, carboxymethylcellulose ammonium, nitrocellulose, aluminum, boron, magnesium. , Magnalium, zirconium, titanium, titanium hydride, tungsten and silicon are preferred.

B component chlorate is a powerful oxidant, and is a component for generating thermal energy by combustion with the A component fuel and generating aerosol (potassium radical) derived from the potassium salt of C component.

The B component chlorate is preferably selected from at least one of potassium chlorate, sodium chlorate, strontium chlorate, ammonium chlorate and magnesium chlorate.

Here, the content ratio in 100 mass% of the fuel of component A and the chlorate of component B is as follows.
Component A: 20-50% by mass
Preferably 25-40% by weight
More preferably 25 to 35% by mass
B component: 80-50 mass%
Preferably 75-60% by weight
More preferably 75 to 65% by mass

Next, the potassium salt of component C is a component for generating aerosol (potassium radical) by the heat energy generated by the combustion of component A and component B.

Examples of the potassium salt of component C include potassium acetate, potassium propionate, monopotassium citrate, dipotassium citrate, tripotassium citrate, ethylenediaminetetraacetic acid monohydrogentripotassium, ethylenediaminetetraacetic acid dipotassium dihydrogen, ethylenediaminetetraacetate. Preference is given to at least one selected from tripotassium acetate hydrogen acetate, tetrapotassium ethylenediaminetetraacetate, potassium hydrogen phthalate, dipotassium phthalate, potassium hydrogen oxalate, dipotassium oxalate and potassium bicarbonate.

The content ratio of the C component is preferably 6 to 1000 parts by mass, more preferably 10 to 900 parts by mass with respect to 100 parts by mass of the total amount of the A component and the B component.

Furthermore, the fire extinguisher composition of the present embodiment has a thermal decomposition starting temperature in the range of over 90 ° C. to 260 ° C., preferably over 150 ° C. to 260 ° C. Such a range of the thermal decomposition start temperature can be prepared by combining the A component, the B component, and the C component in the above ratio.

The fire extinguisher composition of the present embodiment satisfies the above thermal decomposition start temperature range, so that the A component and the B component are automatically received by receiving heat at the time of fire without using an ignition device, for example. It can be ignited and burned to generate an aerosol (potassium radical) derived from the C component and extinguish the fire.

In addition, the flammable temperature of common wood as a combustible material in the room is 260 ° C, and it does not start below 90 ° C, which is the general operating temperature of the heat detector of automatic fire alarm equipment installed in a place where fire is handled. By setting the thermal decomposition start temperature as a condition, it is possible to quickly extinguish the fire and prevent malfunction of the heat sensor. In particular, since the maximum set temperature of the heat detector is 150 ° C., high versatility can be obtained by setting the lower limit value of the thermal decomposition start temperature to over 150 ° C.

<Assembly and use of aerosol fire extinguishing device>
The aerosol fire extinguishing apparatus 1 having the above-described configuration is assembled as follows, for example.
First, the container 11 is prepared, and the sealing material 16 is attached to the bottom surface 22. Next, the coolant layer 14 is attached. For example, the wire mesh 34 is inserted into the container 11 and locked to the step 25. In this state, a plurality of alumina balls (cooling material 32) are uniformly placed on the wire mesh 34, and the wire mesh 33 is further placed on the alumina ball. Then, the spacer 15 is inserted, and the wire mesh 18 is further inserted. In this state, the fire extinguishing agent 12 is placed on the wire mesh 18.

In this way, after all the stored items are stored in the container 11, the opening of the container 11 is closed with the cover 17. At this time, the fire extinguishing agent 12 is placed inside the container 11 such that the upper surface of the extinguishing agent 12 (the surface on which the recess 31 is formed) is pushed in by the cover 17. By doing in this way, the dispersion | variation in the dimension of the fire extinguisher 12 or the cooling material 32 is absorbed by the deformation | transformation of the

metal mesh

18,33,34. In addition, the cover 17 may be sealed by soldering, caulking, screwing, or the like.

Then, the igniter 13 is mounted in the depression 31 of the extinguishing agent 12 through the hole 28 of the cover 17 and sealed with a sealing material. In addition, a necessary temperature sensor (not shown) may be connected to the igniter 13.

The aerosol fire extinguishing apparatus 1 assembled in this way is fixed to the installation surface 90 by, for example, screwing the flange 21 of the container 11 to the installation surface 90. At this time, the aerosol fire extinguishing apparatus 1 may be installed so that the bottom surface 22 of the container 11 faces the fire extinguishing target.

In the state where the aerosol fire extinguishing device is installed, when the measured value of the temperature sensor exceeds a predetermined set value, the igniter 13 ignites the fire extinguisher 12 to burn the fire extinguisher 12. The aerosol generated by the combustion of the extinguishing agent 12 is cooled in the coolant layer 14 and fills the guide portion 26 of the container 11. When the internal pressure of the container 11 is increased to a predetermined value due to the aerosol, the sealing material 16 is broken and the aerosol is ejected from the ejection holes 23 and 24. At this time, the aerosol is guided in the injection direction A of FIG. In this way, the aerosol is scattered on the fire extinguishing object, so that the fire extinguishing object is extinguished or suppressed.

<Effects of First Embodiment>
According to the aerosol fire extinguishing apparatus 1 according to the first embodiment, the flange 21 is provided integrally with the main body of the container 11. Further, the coolant layer and the fire extinguishing agent are directly attached to the container 11, and the inner container is not used for attaching these members. Therefore, the number of parts can be reduced, and assembling and mounting are facilitated, and the cost is reduced.

Further, since the depression 31 formed on the opening side of the extinguishing agent 12 does not penetrate to the bottom surface 22 side, it is possible to prevent sparks and flames generated from the igniter 13 from jumping out from the ejection holes 23 and 24 of the bottom surface 22. Is done. Moreover, since such a structure eliminates the need for a fire transfer tool, the structure can be simplified.

Further, the main components constituting the aerosol fire extinguishing apparatus 1 are the container 11, the fire extinguishing agent 12, the igniter 13, the coolant 32, the one spacer 15, and the three wire meshes 18, 33, 34, and the number of parts is sufficient. Cost reduction by reduction is possible.

In the aerosol fire extinguishing apparatus 1 having the above-described configuration, the maximum combustion internal pressure at room temperature can be suppressed to 5 MPa or less, for example, 0.5 to 1.5 MPa level. Therefore, since the thickness of the container 11 can be reduced or a light material can be used, the entire apparatus can be reduced in weight and size.

[Second Embodiment]
With reference to FIG. 2, the aerosol fire extinguishing apparatus 5 which concerns on 2nd Embodiment is demonstrated. The aerosol fire extinguishing apparatus 5 according to the second embodiment is a type of fire extinguishing apparatus that is attached so that the ejection hole is exposed from an opening formed in the installation surface 90.

<Configuration of aerosol fire extinguishing device>
As shown in FIG. 2, the aerosol fire extinguishing apparatus 5 includes a container 51, a fire extinguisher 52, an igniter 53, a coolant layer 54,

spacers

55 and 56, and a seal material 57. Hereinafter, each component will be described.

The container 51 is a cylindrical member that houses the fire extinguishing agent 52, the coolant layer 54, the

spacers

55 and 56, and the seal material 57, as in the first embodiment. In 2nd Embodiment, the internal diameter of the container 51 is uniform along the extension direction of the container 51, and the level | step difference is not formed.

Further, the container 51 has an opening at the end on the installation surface 90 side, and has a flange 61 extending from an edge forming the opening. The flange 61 is provided integrally with the container 51 as in the first embodiment.

Then, a cover 59 is attached so as to cover the flange 61 and the opening. Similar to the first embodiment, the cover 59 seals the inside of the container 51 by any sealing means among welding, adhesion, caulking, and screwing. The cover 59 is provided with ejection holes 63 and 64 for ejecting aerosol. A sealing material 57 is attached to the cover 59 so as to seal the ejection holes 63 and 64 from the inside.

The container 51 has a bottom surface 62 that covers the end opposite to the opening. A hole 66 for mounting the igniter 53 is formed in the bottom surface 62.

A disc-shaped fire extinguishing agent 52 is accommodated so as to contact the bottom surface 62 of the container 51. The composition of the fire extinguishing agent 52 may be the same as that of the first embodiment. On the surface of the fire extinguishing agent 52 on the bottom surface 62 side, a recess 71 for mounting the ignition tool 53 is formed. It is the same as that of 1st Embodiment that this hollow 71 does not penetrate to the surface by the side of the opening part of the fire extinguishing agent 52. FIG.

An igniter 53 is mounted in the recess 71. The igniter 53 may be of a connector type that can be detachably attached to the recess 71 of the extinguishing agent 52. By adopting a connector-type igniter, the igniter 53 can be easily attached and detached and replaced.

A support plate 58 is disposed on the opening side surface of the fire extinguishing agent 52. The support plate 58 is a disk-shaped member that supports the fire extinguishing agent 52 so as to press the fire extinguishing agent 52 against the bottom surface 62 of the container 51. The support plate 58 may be, for example, a honeycomb-shaped ceramic or a metal punching plate. Of course, a wire mesh may be adopted as the support plate 58.

A coolant layer 54 is provided on the opening side of the container 51 from the support plate 58. The coolant layer 54 includes, for example, a knit mesh obtained by compressing a metal wire, a wound product, a metal plate wound product obtained by opening a hole, an inorganic material honeycomb such as silica / alumina, a metal porous (sintered metal processing). , Metal foam processing), chemical coolant containing potassium and performing an endothermic reaction during decomposition (for example, tripotassium citrate molded pellets). Or the coolant layer containing the alumina ball | bowl similar to 1st Embodiment may be sufficient.

A spacer 55 is interposed between the extinguishing agent 52 (support plate 58) and the coolant layer 54. A spacer 56 is also interposed between the coolant layer 54 and a surface (cover 59) formed by the opening of the container 51. The spacer 56 forms a guide portion 65 between the coolant layer 54 and the cover 59 (seal material 57). The guide unit 65 guides the aerosol so that the aerosol is ejected along the ejection direction B of FIG.

The

spacers

55 and 56 may be the same material as the container 51, or may be a material other than a metal having corrosion resistance. The

spacers

55 and 56 may be ring-shaped as in the first embodiment, or may be rod-shaped or plate-shaped.

<Assembly and use of aerosol fire extinguishing device>
The aerosol fire extinguishing apparatus 5 according to the second embodiment having the above-described configuration is assembled as follows, for example.

First, the fire extinguishing agent 52 is inserted into the prepared container 51. At that time, the extinguishing agent 52 is disposed so that the surface on which the depression is formed faces the bottom surface 62 of the container 51. Next, the support plate 58, the spacer 55, the coolant layer 54, and the spacer 56 are inserted into the container 51 in this order.

Then, the cover 59 to which the sealing material 57 is attached is joined to the flange 61. As described above, the joining means may be welding, adhesion, solder, caulking, or screw fastening. At the same time, the igniter 53 is attached to the depression 71 of the extinguishing agent 52 through the hole 66 formed in the bottom surface 62 of the container 51.

The aerosol fire extinguishing apparatus 5 assembled in this way is fixed to the installation surface 90 with the flange 61 by

screws

81 and 82, for example.

The method of using the aerosol fire extinguishing apparatus 5 is the same as that of the first embodiment. When a temperature sensor (not shown) detects a temperature equal to or higher than a predetermined value, the igniter 53 ignites the fire extinguishing agent 52 to generate aerosol. The generated aerosol is cooled in the coolant layer 54 and then sent to the guide portion 65. When the internal pressure of the container 51 exceeds a predetermined value, the sealing material 57 is broken and the aerosol is ejected from the ejection holes 63 and 64 to the outside. At that time, the aerosol is directed in the ejection direction B in the guide portion 65. And, the fire extinguishing object is extinguished or suppressed by the aerosol scattering to the fire extinguishing object.

<Effects of Second Embodiment>
According to the aerosol fire extinguishing apparatus 5 according to the second embodiment, the flange 61 is provided integrally with the main body of the container 51. Further, the coolant layer 54 and the fire extinguishing agent 52 are directly attached to the container 51. Therefore, the number of parts can be reduced, and assembling and mounting are facilitated, and the cost is reduced.

Also, the depression 71 formed in the extinguishing agent 52 can prevent the spark or flame generated from the igniter 53 from jumping out from the bottom ejection hole. Moreover, since a fire transfer tool is not required, the structure can be simplified.

Further, the main components constituting the aerosol fire extinguishing apparatus 5 are only the container 51, the fire extinguishing agent 52, the igniter 53, the coolant layer 54, the two

spacers

55 and 56, and the support plate 58, and the number of additional parts is increased. Cost reduction by reduction is possible.

In addition, the connector-type igniter 53 facilitates the mounting and replacement of the igniter 53, leading to a reduction in assembly and inspection work.

1, 5 ... aerosol fire extinguishing device,
11, 51 ... container,
12, 52 ... extinguishing agent,
13, 53 ... igniter,
14, 54 ... coolant layer,
15, 55, 56 ... spacers,
16, 57 ... sealing material,
23, 24, 63, 64 ... ejection holes,
26, 65 ... guide section,
31, 71 ... depressions.

Claims

A container having a cylindrical shape and having an aerosol injection hole formed on one end thereof;
A fire extinguishing agent that is stored near the other end of the container and generates the aerosol by combustion; and
An igniter that ignites the extinguishing agent;
A coolant layer that is stored on the surface side of the fire extinguishing agent in the container and includes a coolant that cools the aerosol generated from the fire extinguishing agent;
A spacer for separating the extinguishing agent and the coolant layer;
A guide unit that is formed between the coolant layer and the surface of the container and guides the aerosol so that the aerosol is ejected from the ejection hole along a predetermined ejection direction;
Providing
An aerosol fire extinguishing device.
The ignition agent has a recess for mounting the igniter;
The aerosol fire extinguishing apparatus according to claim 1.
The container has a flange formed integrally with the container at at least one of the one end and the other end;
The aerosol fire extinguishing apparatus according to claim 1 or 2, characterized in that.
The aerosol fire extinguishing apparatus according to claim 3, further comprising a cover attached so as to cover the flange and sealing the inside of the container.
The sealing apparatus according to any one of claims 1 to 4, further comprising: a sealing material that seals the ejection hole and ejects the aerosol from the ejection hole when an internal pressure of the container exceeds a predetermined value. Aerosol fire extinguishing equipment.
The igniter has a igniter containing a metal and at least one of a metal oxide and a metal peroxide,
The aerosol fire extinguishing apparatus according to any one of claims 1 to 5, wherein:
The container is an integrally molded single member;
The aerosol fire extinguishing apparatus according to any one of claims 1 to 6, wherein:
The igniter has a connector for connecting the igniter to a lead wire;
The aerosol fire extinguishing apparatus according to any one of claims 1 to 7, wherein:
Fire extinguishing agent contains potassium chlorate,
DSC evaluation (100-400 ° C., 10 ° C./minute heating) endothermic peak total amount is 100 J / g-900 J / g,
The aerosol fire extinguishing apparatus according to any one of claims 1 to 8, wherein: