TWI711475B - Aerosol fire extinguishing device - Google Patents

Abstract

The present invention provides an aerosol fire extinguishing device which can be assembled from a small number of components, and can keep manufacturing costs low. The aerosol fire extinguishing device of the present invention comprises: a cylindrical container having, at one end, a surface in which a spray hole for aerosol is formed; a fire retardant, which is stored near the other end of the container and produces the aerosol through combustion; an igniter which ignites the fire retardant; a coolant layer, which is stored inside the container at a position closer than the fire retardant to the surface where the spray hole is formed, and contains a coolant that cools the aerosol produced from the fire retardant; a spacer which separates the fire retardant and the coolant layer; and a guide section, which is formed between the coolant layer and the surface of the container that contains the spray hole, and guides the aerosol so that the aerosol is sprayed from the spray hole in a predetermined spraying direction.

Description

Vaporized spray fire extinguishing device

The present invention relates to a vaporized spray fire extinguishing device that can extinguish or suppress a fire by generating vaporized spray by combustion.

A vaporized spray fire extinguishing device is known that generates a vaporized spray by burning a fire extinguishing agent, and then sprays the vaporized spray to extinguish or suppress flames (for example, Patent Document 1). The vaporized spray fire extinguishing device includes a plurality of assembly elements, such as an outer cylinder, an inner cylinder, fire extinguishing agent particles, an igniter, two cooling material layers composed of cooling materials of different sizes, and three spacers. Then, the fire extinguishing agent particles and the two layers of cooling material are housed in the outer cylinder in a state of being installed inside the inner cylinder. [Pre-Technical Literature] [Patent Literature]

[Patent Document 1] Japanese Patent Application Publication No. 2015-123277

[Problem to be Solved by the Invention] However, the vaporized spray fire extinguishing device proposed in Patent Document 1 described above requires a large number of components and a complicated structure. Therefore, it takes a lot of effort in assembly and the problem of high manufacturing cost. .

Therefore, an object of the present invention is to provide a vaporized aerosol fire extinguishing device that can be assembled with a small number of components, can simplify the structure and suppress the manufacturing cost. [Means used to solve the problem]

In order to solve the above-mentioned problems, the present invention provides a vaporized spray fire extinguishing device, which is characterized by comprising: a container having a cylindrical shape and a surface with a spray hole formed with vaporized spray at one end; , It is stored in the vicinity of the other end of the container, and the vaporized spray is generated by combustion; an igniter, which ignites the extinguishing agent; a cooling material layer, which is stored in the container than the aforementioned The fire extinguishing agent is closer to the surface side and includes a cooling material that cools the vaporized spray generated from the fire extinguishing agent; a spacer that separates the fire extinguishing agent and the cooling material layer; and a guide part formed on the aforementioned Between the cooling material layer and the surface of the container, the vaporized spray is guided so that the vaporized spray is sprayed from the spray hole in a predetermined spray direction.

In the vaporized spray fire extinguishing device of the present invention having the above-mentioned structure, it is preferable that the ignition agent has a groove for mounting the ignition device.

In addition, in the vaporization spray fire extinguishing device of the present invention having the above-mentioned structure, the container has a flange integrally formed with the container at the end of at least one of the one end and the other end. good.

Furthermore, the vaporized spray fire extinguishing device of the present invention having the above-mentioned configuration preferably additionally has a cover plate which is attached to cover the flange and seals the inside of the container.

In addition, the vaporization spray fire extinguishing device of the present invention having the above-mentioned structure preferably additionally has a sealing material that closes the ejection hole, and when the internal pressure of the container exceeds a predetermined pressure, the gas is allowed to flow from the ejection hole. Chemical spray is sprayed out.

Furthermore, in the vaporized spray fire extinguishing device of the present invention having the above-mentioned structure, the igniter preferably has an igniter containing at least one of a metal, a metal oxide, and a metal peroxide.

In addition, in the vaporized spray fire extinguishing device of the present invention having the above-mentioned structure, the container is preferably a single member integrally formed.

In addition, in the vaporized spray fire extinguishing device of the present invention having the above-mentioned structure, it is preferable that the igniter has a joint that connects the igniter and a lead wire.

In addition, in the vaporized spray fire extinguishing device of the present invention having the above-mentioned constitution, the fire extinguishing agent contains potassium chlorate, and the total peak heat absorption by DSC evaluation (100-400°C, 10°C per minute) is 100J/g-900J/g good. [Invention Effect]

According to the present invention, the vaporized spray fire extinguishing device can be assembled with a small number of components, and the structure can be simplified and the manufacturing cost can be suppressed.

Hereinafter, the representative embodiment of the fire extinguishing agent composition and the vaporized spray generating automatic fire extinguishing device of the present invention will be described in detail with reference to the drawings. Furthermore, the present invention is not limited to these illustrations. In addition, the drawings are used to conceptually illustrate the present invention. For ease of understanding, the size, ratio, or number may be exaggerated or simplified as necessary.

[First embodiment] <Overall configuration of vaporized spray fire extinguishing device> With reference to Fig. 1, the vaporized spray fire extinguishing device 1 of the first embodiment will be described. The vaporized spray fire extinguishing device 1 of the first embodiment is a type of fire extinguishing device installed to protrude from the installation surface 90. As shown in FIG. 1, it is configured to include a container 11, a fire extinguishing agent 12, an igniter 13, and a cooling material layer. 14. Spacer 15 and sealing material 16. Hereinafter, each component of the vaporized spray fire extinguishing device 1 will be described in order.

(Container) The container 11 is a cylindrical member that houses the fire extinguishing agent 12, the cooling material layer 14, the spacer 15 and the sealing material 16 therein. The container 11 is made of a metal material such as aluminum or stainless steel to withstand the internal pressure (for example, 5 MPa) raised by the generation of the vaporized spray described below.

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 used to fix the container 11 to the installation surface 90 by, for example, bolts 41 and 42 and is formed integrally with the body of the container 11. Therefore, there is no need to separately prepare a jig for mounting the container 11 to the installation surface 90.

The opening of the container 11 is closed by a cover plate 17 installed to cover the flange 21. The cover plate 17 is fixed to the flange 21 by fixing means such as screwing, adhesive, riveting and the like. In addition, the cover plate 17 may be attached to the installation surface 90 in a state away from the installation surface 90 in order to suppress the heat generated by the combustion of the fire extinguishing agent 12 from being transferred to the installation surface 90 via the cover plate 17. The cover plate 17 has a hole 28 for inserting the igniter 13.

The other end of the container 11, that is, the end on the opposite side to the opening is covered by the bottom surface 22. On the bottom surface 22, spray holes 23 and 24 for vaporized spray are formed. The bottom surface 22 is additionally formed integrally with the body of the container 11.

The inner diameter of the container 11 is reduced from the opening to the bottom surface 22 to form a height difference 25. In other words, the height difference 25 is formed so that the container 11 is reduced from the opening to the bottom surface 22 on the way. The inner surface of the container 11 from the height difference 25 to the bottom surface 22 (specifically, the sealing material 16) constitutes a guide portion 26, for example, like a gun body, which acts as a vaporized spray from the spray holes 23 and 24 toward the first The spraying method in the spraying direction A in the figure guides the function of the vaporized spray. The length of the extending direction of the guide part 26 depends on the directivity required for the vaporized spray from the vaporized spray fire extinguishing device 1, that is, the vaporized spray must reach more than the distance from the vaporized spray fire extinguishing device 1. It is determined by the object to be extinguished far away.

In the present embodiment, the container 11 is composed of only a cylindrical shape, and storage items such as the fire extinguishing agent 12 are directly attached to the container 11. In other words, there is no need for an inner container for holding storage items. Therefore, assembly and cost can be simplified.

(Fire extinguishing agent) The fire extinguishing agent 12 is stored near the opening of the container 11 and generates a vaporized spray by combustion. The fire extinguishing agent 12 may be a non-chemical composition containing potassium chlorate and vaporized spray generating components, and in this embodiment has a disc shape. The composition of the fire extinguishing agent 12 is as follows.

The fire extinguishing agent 12 has a groove (recess) 31 for mounting the igniter 13 on the surface facing the opening. The groove 31 is configured to not penetrate to the surface on the bottom surface 22 side, and therefore the igniter 13 is not exposed on the bottom surface 22 side. In other words, the depth of the groove 31 is smaller than the thickness of the fire extinguishing agent 12. With this configuration, it is possible to prevent sparks or flames that may be ejected from the igniter 13 from flying into the inside from the ejection holes 23 and 24. With the above preventive measures, the inside of the container 11 can be effectively used to reliably guide the vaporized spray. In addition, this structure has the advantages of simplifying the structure and reducing the cost compared to the structure in which the fire transmitter is inserted into the hole with a through structure.

The fire extinguishing agent 12 is in contact with the metal mesh 18 on the surface on the bottom surface 22 side. Therefore, the fire extinguishing agent 12 is sandwiched between the cover plate 17 and the metal mesh 18. The metal mesh 18 is the same as the metal meshes 33 and 34 described later, and is made of a material with good air permeability. Therefore, the vaporized spray generated in the fire extinguishing agent 12 flows into the cooling material layer 14 through the metal mesh 18.

(Ignition device) The igniter 13 is attached to the groove 31 of the fire extinguishing agent 12 through the hole 28 of the cover plate 17 and ignites the fire extinguishing agent 12 in order to generate vaporized spray. The igniter 13 may be, for example, a known starter or a detonator. Furthermore, in order to communicate the occurrence of a fire to the igniter 13 to operate, a thermal sensor (not shown) may be provided.

(Cooling Material Layer) The cooling material layer 14 is a member housed in the container 11 on the bottom surface 22 side of the fire extinguishing agent 12 and includes a cooling material 32 and metal meshes 33 and 34 that hold the cooling material 32. In the present embodiment, the cooling material layer 14 has a disk-like or cylindrical shape as a whole, and its diameter is smaller than the inner diameter (larger inner diameter) on the opening side of the container 11, and is larger than the inner diameter (larger) on the bottom surface 22 side. Small inner diameter) large. Therefore, the cooling material layer 14 is locked in the height difference 25 formed in the container 11.

The cooling material 32 cools the vaporized spray generated from the fire extinguishing agent 12. The cooling material 32 may be a sphere made of inorganic oxides such as alumina, silicon dioxide, and heat-resistant ceramics as a material, or may be a granular body made of metal. Alternatively, the cooling material 32 may have a cylindrical shape or a cylindrical hollow shape. In this embodiment, a plurality of alumina balls constitute the cooling material 32.

The metal meshes 33 and 34 can be held by sandwiching the cooling material 32. The metal meshes 33 and 34 can be formed, for example, by weaving metal wires into a mesh shape or a mesh shape. The plurality of spheres constituting the cooling material 32 are fixed by the metal meshes 33 and 34, whereby the height difference of each member such as the cooling material 32 can be absorbed. Furthermore, the metal meshes 33 and 34 may be, for example, a foamable polymer material or a metal leaf spring.

The metal meshes 33 and 34 are mesh-like or grid-like as described above, and allow gas to pass through. Therefore, the vaporization spray that has flowed into the metal mesh 33 from the opening side passes through the metal mesh 34 between the alumina balls (cooling material 32) and leaks out to the bottom surface 22 side.

In this embodiment, only one cooling material layer 14 is provided. Therefore, compared to, for example, a vaporized spray fire extinguishing device having two cooling material layers including large and small alumina balls, the structure is simpler, not only easy to assemble, but also reduces cost.

(Spacer) The spacer 15 is provided between the fire extinguishing agent 12 (metal mesh 18) and the cooling material layer 14 to separate the two members. The spacer 15 may be, for example, a ring member arranged along the inner peripheral surface of the container 11 and has a certain thickness to separate the fire extinguishing agent 12 from the cooling material layer 14 by a certain distance.

(Sealing material) The sealing material 16 closes the ejection holes 23 and 24 of the bottom surface 22, and when the internal pressure of the container 11 exceeds a predetermined value, the vaporized spray is ejected from the ejection holes 23 and 24. The sealing material 16 is a waterproof, oil-proof, and moisture-proof sealant, and may have, for example, an aluminum layer of 30 to 80 μm and an adhesive layer of 50 μm.

<Fire-extinguishing agent composition> Here, the fire-extinguishing agent composition used in this embodiment is demonstrated. As the fire extinguishing agent composition, it can be classified into or not classified as gunpowder, and various fire extinguishing agent compositions can be used. Among them, as the fire extinguishing agent 12 of the present embodiment, for example, 20-50% by mass of fuel (component A) and 80-50% by mass of chlorate (component B) can be suitably used, and it is relative to the fuel and chloric acid. A total of 100 parts by mass of the salt contains 6-1000 parts by mass of potassium salt (component C), and a fire extinguishing agent composition whose thermal decomposition start temperature exceeds the range of 90°C to 260°C.

The fuel of the A component is a component used to generate a vaporization spray (potassium radical) of the potassium salt from the C component by co-combustion with the chlorate of the B component to generate heat.

As the fuel of the A component, for example, it is selected from dicyandiamine, nitroguanidine, guanidine nitrate, urea, melamine, melamine cyanurate, AviCel, guar gum, sodium carboxymethyl cellulose, potassium carboxymethyl cellulose , Carboxymethyl cellulose ammonium, nitrocellulose, aluminum, boron, magnesium, magnesium aluminum alloy, zirconium, titanium, titanium hydrogen, tungsten and silicon at least one is preferred.

The chlorate of component B is a powerful oxidizer, and it is a component used to generate a vaporization spray (potassium radical) from the potassium salt of component C by co-combustion with the fuel of component A to generate heat.

The chlorate as the component B is preferably at least one selected from potassium chlorate, sodium chlorate, strontium chlorate, ammonium chlorate, and magnesium chlorate, for example.

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

Next, the potassium salt of the C component is a component for generating a vaporization spray (potassium radical) by using the thermal energy generated by the combustion of the A component and the B component.

The potassium salt of the C component is, for example, selected from potassium acetate, potassium propionate, monopotassium citrate, dipotassium citrate, tripotassium citrate, ethylenediaminetetraacetic acid trihydrogen monopotassium, ethylenediaminetetraacetic acid dipotassium At least among potassium hydrogen, potassium ethylenediaminetetraacetic acid, potassium ethylenediaminetetraacetate, potassium hydrogenphthalate, potassium phthalate, potassium hydrogen bromate, potassium bromate, and potassium bicarbonate One kind is better.

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

Furthermore, the fire extinguishing agent composition system of this embodiment is one whose thermal decomposition start temperature exceeds the range of 90-260 degreeC, Preferably it exceeds 150-260 degreeC. Such a range of the thermal decomposition start temperature can be obtained by combining the A component, the B component, and the C component in the above ratio.

The fire extinguishing agent composition system of this embodiment can satisfy the above-mentioned thermal decomposition start temperature range, for example, without using an ignition device, and only absorb the heat at the time of a fire, so that the A component and the B component can be automatically ignited and burned. Vaporized spray (potassium free radical) from component C is produced to extinguish the fire.

Moreover, the ignition temperature of general wood, which is a combustible material in the room, is 260°C. The thermal sensor of the automatic fire warning equipment installed in the place where the fireworks is handled is set at the thermal decomposition start temperature under the condition that the general operating temperature is 90°C or less. This not only can quickly extinguish the fire, but also prevent the aforementioned thermal sensor from erroneously operating. In particular, since the maximum setting temperature of the thermal sensor is 150°C, high versatility can be obtained by setting the lower limit value of the thermal decomposition start temperature to exceed 150°C.

<Assembly and use of vaporized aerosol fire extinguishing device> The vaporized aerosol fire extinguishing device 1 having the above-mentioned 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. Then, the cooling material layer 14 is installed. For example, the metal mesh 34 is inserted into the container 11 and locked to the height difference 25. In this state, a plurality of alumina balls (cooling material 32) are all placed on the metal net 34, and then the metal net 33 is placed on the alumina balls. Then, the spacer 15 is inserted, and then the metal mesh 18 is inserted. In this state, the fire extinguishing agent 12 is placed on the metal net 18.

In this way, after the container 11 contains all the contents, the opening of the container 11 is closed with the cover plate 17. At this time, the upper surface of the fire extinguishing agent 12 (the surface where the groove 31 is formed) is pressed by the cover plate 17, and the fire extinguishing agent 12 is stored in the container 11. In this way, the inconsistent size of the fire extinguishing agent 12 or the cooling material 32 will be absorbed due to the deformation of the metal meshes 18, 33, and 34. At the same time, the cover plate 17 can be closed by welding, riveting, screwing, etc.

Then, the igniter 13 is installed to the groove 31 of the fire extinguishing agent 12 via the hole 28 of the cover plate 17, and then sealed with a sealing material. At the same time, a necessary temperature sensor (not shown) can be connected to the ignition tool 13.

The vaporized aerosol fire extinguishing device 1 installed in this way is fixed to the installation surface 90 by the flange 21 of the container 11 being screwed to the installation surface 90, for example. At this time, the vaporized spray fire extinguishing device 1 may be installed so that the bottom surface 22 of the container 11 faces the fire extinguishing object.

When the vaporized spray fire extinguishing device is installed and the measured value of the temperature sensor exceeds the predetermined setting value, the igniter 13 ignites the fire extinguishing agent 12 in order to burn the fire extinguishing agent 12. The vaporized spray generated by the combustion of the fire extinguishing agent 12 is cooled in the cooling material layer 14 and refills the inside of the guide part 26 of the container 11. Then, if the internal pressure of the container 11 is increased to a predetermined value due to the vaporized spray, the sealing material 16 will be broken, causing the vaporized spray to be ejected from the spray holes 23 and 24. At this time, the vaporized spray is guided along the guide portion 26, thereby facing the spray direction A in FIG. 1. In this way, the vaporized spray will fly to the fire extinguishing target, and the fire extinguishing target will be extinguished or controlled.

<Effects of the first embodiment> According to the vaporized spray fire extinguishing device 1 of the first embodiment, the flange 21 is provided integrally with the main body of the container 11. In addition, the cooling material layer and the fire extinguishing agent are directly installed in the container 11. Since these components are installed, it is not necessary to use the inner container. Therefore, the number of components can be reduced, assembly and installation become easier, and costs can be reduced.

In addition, the groove 31 formed on the opening side of the fire extinguishing agent 12 does not penetrate the bottom surface 22 side, so it is possible to prevent sparks or flames generated from the igniter 13 from flying out of the ejection holes 23 and 24 of the bottom surface 22. In addition, with such a structure, the pyrotechnic device is not required, and the structure can be simplified.

Moreover, the main components constituting the vaporized spray fire extinguishing device 1 only need the container 11, the fire extinguishing agent 12, the igniter 13, the cooling material 32, one spacer 15, and three metal meshes 18, 33, 34. Reduce the number of components and reduce costs.

The vaporized spray fire extinguishing device 1 having the above-mentioned configuration can suppress the maximum internal pressure of combustion at room temperature to 5 MPa or less, for example, about 0.5 to 1.5 MPa. Therefore, since the thickness of the container 11 can be reduced or a lightweight material can be used, the weight and size of the entire device can be reduced.

[Second Embodiment] The vaporized spray fire extinguishing device 5 of the second embodiment will be described with reference to Fig. 2. The vaporized aerosol fire extinguishing device 5 of the second embodiment is a type of fire extinguishing device that is installed so that the spray hole is exposed from the opening formed in the installation surface 90.

<Configuration of the vaporized spray fire extinguishing device> As shown in Figure 2, the vaporized spray fire extinguishing device 5 is configured to include a container 51, a fire extinguishing agent 52, an igniter 53, a cooling material layer 54, spacers 55, 56 and Sealing material 57. The components are explained below.

The container 51 is the same as the first embodiment, and is a cylindrical member that stores the fire extinguishing agent 52, the cooling material layer 54, the spacers 55 and 56, and the sealing material 57. In the second embodiment, the inner diameter of the container 51 is uniform along the extending direction of the container 51, and no height difference is formed.

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

Then, the cover plate 59 is attached so as to cover the flange 61 and the opening. The cover 59 is the same as in the first embodiment, and the inside of the container 51 is sealed by any sealing means among welding, bonding, riveting, and screwing. The cover plate 59 is provided with ejection holes 63 and 64 for ejecting the vaporized spray. Furthermore, the sealing material 57 is attached to the cover plate 59 so as to close the ejection holes 63 and 64 from the inside.

The container 51 has a bottom surface 62 covering the end on the side opposite to the opening. On the bottom surface 62, a hole 66 for mounting the igniter 53 is formed.

A disc-shaped fire extinguishing agent 52 is accommodated so as to abut against 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 side of the bottom surface 62 of the fire extinguishing agent 52, a groove 71 for mounting the igniter 53 is formed. This groove 71 does not penetrate the surface on the side of the opening of the fire extinguishing agent 52, and is the same as in the first embodiment.

In the groove 71, an ignition device 53 is installed. The igniter 53 may be in the form of a joint detachably installed in the groove 71 of the fire extinguishing agent 52. By adopting the igniter in the form of a joint, the assembly, disassembly and replacement of the igniter 53 can be facilitated.

On the surface of the fire extinguishing agent 52 on the side of the opening, a support plate 58 is arranged. The support plate 58 is a disc-shaped member that supports the fire extinguishing agent 52 in such a manner that the fire extinguishing agent 52 abuts against the bottom surface 62 of the container 51. The supporting plate 58 may be, for example, a honeycomb-shaped ceramic or metal perforated plate. Of course, a metal mesh can also be used as the supporting plate 58.

A cooling material layer 54 is provided on the side of the opening of the container 51 from the support plate 58. The cooling material layer 54 can be, for example, a woven mesh made of metal wire compression processing, a coiled wire processing product, a perforated metal plate winding processing product, a honeycomb material made of inorganic materials such as silicon dioxide, alumina, or porous metal. (Sintered metal processing, foamed metal processing), chemical coolants that contain potassium and undergo an endothermic reaction during decomposition (for example, tripotassium citrate molded particles). Alternatively, it may be a cooling material layer containing the same alumina balls as in the first embodiment.

A spacer 55 is sandwiched between the fire extinguishing agent 52 (support plate 58) and the cooling material layer 54. In addition, a spacer 56 is also sandwiched between the cooling material layer 54 and the surface (cover plate 59) formed by the opening of the container 51. With the spacer 56, a guide portion 65 is formed between the cooling material layer 54 and the cover plate 59 (sealing material 57 ). The guide portion 65 guides the vaporized spray so that the vaporized spray is sprayed along the spray direction B in FIG. 2.

The spacers 55 and 56 may be made of the same material as the container 51, or may be made of materials other than metal having corrosion resistance. In addition, the spacers 55 and 56 may be ring-shaped as in the first embodiment, or may be rod-shaped or plate-shaped.

<Assembly of the vaporized spray fire extinguishing device and its use> The vaporized spray fire extinguishing device 5 of the second embodiment having the above-mentioned configuration is assembled as follows, for example.

First, the fire extinguishing agent 52 is inserted into the prepared container 51. At this time, the fire extinguishing agent 52 is arranged so that the surface where the groove is formed faces the bottom surface 62 of the container 51. Then, the support plate 58, the spacer 55, the cooling material layer 54, and the spacer 56 are inserted into the container 51 in this order.

Then, the cover plate 59 to which the sealing material 57 is attached is joined to the flange 61. The joining means may be any of welding, bonding, welding, riveting, and screwing as described above. At the same time, the igniter 53 is installed in the groove 71 of the fire extinguishing agent 52 through the hole 66 formed in the bottom surface 62 of the container 51.

For the vaporized spray fire extinguishing device 5 installed in this way, the flange 61 is fixed to the installation surface 90 with screws 81 and 82, for example.

The method of using the vaporized spray fire extinguishing device 5 is the same as that of the first embodiment. If a temperature sensor (not shown) detects a temperature higher than a predetermined value, the igniter 53 will ignite the fire extinguishing agent 52 to cause vaporized spray Agent produced. The generated vaporized spray is sent to the guide 65 after the cooling material layer 54 is cooled. Then, if the internal pressure of the container 51 exceeds a predetermined value, the sealing material 57 will rupture, and the vaporized spray will be ejected from the ejection holes 63 and 64 toward the outside. At this time, the vaporized spray will face the ejection direction B at the guide 65. Then, the vaporized spray is scattered to the fire-extinguishing target, and the fire-extinguishing target is extinguished or controlled.

<Effects of the second embodiment> According to the vaporized spray fire extinguishing device 5 of the second embodiment, the flange 61 is provided integrally with the main body of the container 51. In addition, the cooling material layer 54 and the fire extinguishing agent 52 are directly attached to the container 51. Therefore, the number of components can be reduced, and assembly and installation become easy, while reducing costs.

In addition, the groove 71 formed in the fire extinguishing agent 52 can prevent sparks or flames generated from the igniter 53 from flying out of the ejection hole on the bottom surface. In addition, there is no need for a pyrotechnic device, so the structure can be simplified.

Moreover, the main components constituting the vaporized spray fire extinguishing device 5 only need the container 51, the fire extinguishing agent 52, the igniter 53, the cooling material layer 54, the two spacers 55, 56, and the support plate 58, which is enough, by further reducing The number of components can reduce costs.

In addition, the joint-type igniter 53 can facilitate the installation and replacement of the igniter 53 and reduce the work of assembly or inspection.

1,5‧‧‧Gasified spray fire extinguishing device 11,51‧‧‧Container 12,52‧‧‧Fire extinguishing agent 13,53‧‧‧Ignition device 14,54‧‧‧Cooling material layer 15,55,56‧ ‧‧Spacer 16,57‧‧‧Sealing material 17,59‧‧‧Cover 18,33,34‧‧‧Metal mesh 21,61‧‧‧Flange 22,62‧‧‧Bottom surface 23,24,63 ,64‧‧‧Ejection hole 25‧‧‧Elevation difference 26,65‧‧‧Guiding part 28,66‧‧‧hole 31,71‧‧‧groove 32‧‧‧cooling material 41,42‧‧bolt 58‧‧‧Support plate 81, 82‧‧‧screw 90‧‧‧setting surface

Fig. 1 is a schematic diagram showing a vaporized spray of the first embodiment of the present invention. Fig. 2 is a schematic diagram showing a vaporization spray of a second embodiment of the present invention.

Claims (2)

A vaporized aerosol fire extinguishing device is characterized in that it is provided with: a container, which is in a cylindrical shape, and has a surface with a spray hole for vaporized aerosol at one end; the fire extinguishing agent is in the shape of a disc, Is stored in the vicinity of the other end of the container, and generates the vaporized spray by combustion; igniter, which ignites the fire extinguishing agent; cooling material layer, which is stored in the container than the fire extinguishing agent It is closer to the surface and includes a cooling material that cools the vaporized spray generated from the fire extinguishing agent; a spacer that separates the fire extinguishing agent from the cooling material layer; and a guide part that is formed on the cooling material Between the layer and the surface of the container, and guide the vaporized spray so that the vaporized spray is sprayed from the spray hole along a predetermined spray direction; the fire extinguishing agent contains sodium carboxymethyl cellulose as fuel, as Potassium chlorate as chlorate, potassium acetate or tripotassium citrate as potassium salt, DSC assessment (100~400℃, 10℃ temperature rise per minute) total peak heat absorption is 100J/g~900J/g. For example, the vaporized spray fire extinguishing device of item 1 of the scope of patent application, wherein the fire extinguishing agent has a recess for installing the ignition device.

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