JP6509709B2 - Aerosol fire extinguisher - Google Patents

Description

  The present invention relates to an aerosol fire extinguishing apparatus that releases aerosol to extinguish a fire, and more particularly, to an aerosol fire extinguishing apparatus suitable for extinguishing a fire that occurs in an open space (including the outside) such as a large space.

  BACKGROUND Conventionally, a gas fire extinguishing system for releasing a gas for fire extinguishing is widely used. As a fire extinguishing system of a gas system, there are a system that releases inert gas and dilutes the concentration of oxygen to extinguish, and a system that releases halon gas to suppress the chain reaction of combustion and extinguishes. The fire extinguishing system of these gas systems is provided as a closed space as a protection section and for releasing the gas over the entire area.

  In recent years, an aerosol fire extinguishing device (also referred to as a “smoking smoke extinguishing device” which burns a drug (such as potassium nitrate) containing a component having a property of suppressing a chain reaction of combustion and releases it as an aerosol Has come to be used (see, for example, Patent Document 1). The aerosol emitted by the aerosol fire extinguisher, like halon gas, suppresses the chain reaction of combustion, but unlike halon gas, it does not contain a substance that destroys the ozone layer. However, this aerosol fire extinguishing device is usually provided on the assumption that the closed space is protected, for example, provided on the assumption that the closed space such as the library, the server room, and the control room is protected. It is.

JP, 2009-142419, A

  By the way, in various factories and the like, work to handle flammable or highly flammable liquids, such as work to replace liquids such as solvents, is performed regularly or irregularly. Usually, the work is done in an open space to prevent the retention of vapors and the like from liquids and to prevent the formation of explosive atmospheres.

  The aerosol fire extinguishing system is effective not only for ordinary fires but also for oil fires, and is effective for various fires. Therefore, it is conceivable to use an aerosol fire extinguishing device to extinguish a fire that occurs when performing the work of handling the flammable or highly flammable liquids and the like.

  However, as described above, the conventional aerosol fire extinguishing device is provided assuming protection of a closed space, and is not suitable for extinguishing a fire occurring in an open space.

  An object of the present invention is to provide an aerosol fire extinguishing device suitable for extinguishing a fire occurring in an open space, in view of the above-mentioned circumstances.

The present invention is an aerosol fire extinguishing device provided in an open space, comprising: a three-dimensional frame structure that encloses a protected area as a space area opened to the outside; and supported by the frame structure; And an aerosol injector for injecting a fire extinguishing aerosol toward a protection target object , wherein the frame structure includes a plurality of pillar members erected around the protection area and an adjacent one of the plurality of pillar members It has a beam member which connects the upper parts of things, The said aerosol injector is an aerosol fire extinguishing apparatus characterized by being supported by the said beam member or the said pillar member, and provided .

The present invention also relates to an aerosol fire extinguishing device provided in an open space, comprising a three-dimensional frame structure that surrounds the protected area as a space area opened to the outside, and supported by the frame structure, the protected area And an aerosol injector for injecting a fire extinguishing aerosol toward a protection object located in the inside, wherein the frame structure has a plurality of pillar members erected around the protection area , and the plurality of pillars It is an aerosol fire extinguishing device characterized by having at least one board member provided so that the lower part of the side of the above-mentioned protection field formed between adjoining ones of members may be closed .

The present invention also relates to an aerosol fire extinguishing device provided in an open space, comprising a three-dimensional frame structure that surrounds the protected area as a space area opened to the outside, and supported by the frame structure, the protected area And a plurality of aerosol injectors for jetting fire extinguishing aerosols toward the protection object located inside the plurality of aerosol injectors, wherein the plurality of aerosol injectors each have an injection direction center line of the fire extinguishing aerosol directed to the protection object It is an aerosol fire extinguishing device characterized by being arranged so as not to cross .

Further, the present invention is the aerosol fire extinguishing device, wherein the frame structure has a plurality of pillar members erected around the protection area .

  In the present invention, the frame structure includes, as a plurality of pillar members erected around the protection area, a plurality of pillar members erected vertically and / or obliquely around the protection area. It can be Further, at least one beam member connecting adjacent ones of the plurality of column members may be further included. Also, the plurality of column members and / or the at least one beam member may be a pipe material. Alternatively, it may be an angled member such as an L-shape. Further, the frame structure may be movable by providing moving means at the lower part of the plurality of column members. The moving means can be a caster. Also, the at least one aerosol injector may be supported by the plurality of column members and / or at least one beam member. Also, the at least one aerosol injector may be electrically powered and / or thermally activated. In the case of the electrically-activated type, at least one activation unit for activating the at least one aerosol injector may further be provided. The at least one activation unit may be remotely operable.

  According to the present invention, in the open space, the protected area can be surrounded by the frame structure as a space area opened to the outside. Then, the aerosol injector supported by the frame structure can spray the fire extinguishing aerosol toward the protection target located in the protection area.

  Specifically, for example, the present invention can be used as a protective area when working with various flammable liquids or the like in various factories and the like, and can be used as a protective area. The frame structure can be surrounded as a space area open to the outside. That is, it is possible to prevent the vapor or the like from the highly flammable or highly flammable liquid from staying and to surround the area as a protective area by the frame structure while preventing the formation of an explosive atmosphere. And, even if a fire occurs from a highly flammable or flammable liquid, the fire extinguishing aerosol can be jetted from the aerosol injector supported by the frame structure toward the fire source.

  Therefore, according to this invention, the aerosol fire extinguishing apparatus suitable for extinguishing the fire which generate | occur | produces in open space can be provided.

The outline of an example of embodiment of the aerosol fire extinguishing apparatus of this invention is shown, and the perspective which showed a mode when the aerosol for fire extinguishing was injected from the aerosol injector with respect to the fire which generate | occur | produces in the protection area which a frame structure encloses. FIG. FIG. 6 is a perspective view showing the same as above, in which protection work of replacing liquids such as solvents is performed in a protection area. It is a perspective view which shows a state same as the above, and protecting a protection subject which is all located in a protection field. It is a perspective view which shows the state same as the above, and protects a long protection object in which the part with high possibility of ignition is located in protection area. FIG. 12 is a perspective view showing the same as above, and a plurality of devices arranged so that the protection area is continuous protects a large protection object located in the continuous protection area. It is the perspective view which showed the aspect same as the above, and provided the plate member in the lower part of the side formed as an open surface between the adjacent pillar members of a frame structure. It is the perspective view which showed the same and showed the aspect which provided the caster in the lower part of the several pillar member of a frame structure.

  An embodiment of the aerosol extinguishing apparatus of the present invention will be described based on FIGS. 1 to 7.

  First, the basic configuration of the aerosol fire extinguisher 1 will be described.

  The aerosol fire extinguishing apparatus 1 is provided as a permanent or temporary installation in an open space (including the outside) such as a large space, and the protected area AR is defined as a space area opened to the outside in the open space. , And are provided to extinguish a fire occurring in the protected area AR.

  The aerosol fire extinguishing system 1 includes a frame structure 2 having a three-dimensional structure surrounding a protection area AR as a space area opened to the outside, and a protection object OB supported by the frame structure 2 and located in the protection area AR. And an aerosol injector 3 for injecting a fire extinguishing aerosol toward the vehicle. Thus, for example, as shown in FIG. 1, when a fire FR is generated from a protection target (not shown) in the protection area AR, the aerosol injector 3 directs the fire fighting aerosol AS to the fire FR. It can be injected.

  Therefore, according to the aerosol fire extinguishing device 1, in the open space, the protected area AR can be surrounded by the frame structure 2 as a space area opened to the outside, and the aerosol injector 3 locates in the protected area AR. A fire extinguishing aerosol AS can be jetted toward the object to be protected OB to extinguish the fire generated from the object to be protected OB.

  Next, the utilization aspect of the aerosol fire extinguishing apparatus 1 is demonstrated.

  For example, as shown in FIG. 2, the aerosol fire extinguishing apparatus 1 carries out work of handling highly flammable or highly flammable liquids, such as work of transferring used solvents to drums for disposal etc. in various factories etc. The work area at the time of operation can be used as the protection area AR. In this case, it can be surrounded by the frame structure 2 as a protection area AR while preventing the vapor or the like from the flammable or highly flammable liquids from staying in the work area and preventing the formation of an explosive atmosphere. it can. And, even if a fire occurs from a highly flammable or flammable liquid, the fire extinguishing aerosol AS may be sprayed from the aerosol injector 3 supported by the frame structure 2 toward the fire source to extinguish the fire. it can.

  Also, as shown in FIG. 3, the aerosol fire extinguishing device 1 can, of course, be entirely surrounded by the frame structure 2, and the protection object OB of a size that fits entirely within the protection area AR (for example, various types Industrial machinery etc.) can also be used to always protect, but even if the object OB to be protected exceeds the length of the frame structure 2, by arranging it so as to straddle it, for example As shown in FIG. 4, it can be used as a local constant protection, or, as shown in FIG. 5, it can be used as a whole protection.

  That is, in FIG. 4, the protection object OB is, for example, a cable duct or the like whose entire length exceeds the length of the frame structure 2. The aerosol fire extinguishing device 1 is arranged such that the frame structure 2 straddles the protection object OB, and in the protection object OB, a portion having a high possibility of fire occurrence is located in the protection area AR. By arranging in this way, even if the protection object OB is longer than the length of the frame structure 2, it is possible to use it as a local protection for a portion where the possibility of fire occurrence is high. (It is also possible to intersperse multiple units and use them as locally protecting multiple locations).

  Further, in FIG. 5, the protection object OB is, for example, a belt conveyor or the like whose entire length exceeds the length of the frame structure 2. A plurality of aerosol fire extinguishing devices 1 are arranged such that their frame structures 2 straddle the protection object OB and the protection area AR is continuous along the length direction, and the large protection object OB is overall In the protection area AR. By arranging in this way, even if the protection object OB is longer than the length of the frame structure 2, it is possible to use it as a protection for the whole.

  Next, the frame structure 2 in the present embodiment will be specifically described.

  Specifically, in the case of this embodiment, the frame structure 2 includes four column members 2a and four beam members 2b, and the four column members 2a are vertically erected at four corners, Three beam members 2b are connected via connectors 2c so as to connect adjacent ones to the upper portions of the column members 2a, thereby defining a space area open to the outside of the rectangular cross-section inside. It is an assembly type integrated as a frame structure 2 of a structure. And, by arranging the four pillar members 2a to stand upright around the protection area AR, as described above, the protection area AR is surrounded as a space area opened to the outside.

  In the present embodiment, in the case of the column member 2a and the beam member 2b shown in FIG. 1 (the same applies to FIG. 2, FIG. 3, FIG. 6, and FIG. 7), Although the space area defined inside has a cubic shape, it is defined inside by changing the length of the beam member 2b between the width direction and the length direction. The space area may be a rectangular parallelepiped (see FIGS. 4 and 5).

  With regard to the number of column members 2a and beam members 2b constituting the frame structure 2 and the shape of the space area defined thereby, the environment of the open space where the device is installed, the protection area AR to be protected and the protection object It can be suitably changed according to various conditions, such as a form and a size of OB. For example, three column members 2a and three beam members 2b may be provided to define a space region having a triangular cross section inside, or five or more column members 2a and two beam members 2b may be used, and the cross section has a cross section A pentagon or more polygonal space area may be defined inside. Further, as the beam member 2b, instead of using a plurality of linear members, one continuous polygonal or circular member may be used. In that case, it is also possible to use two pillar members 2a as self-supporting ones, and to connect one beam member 2b continuous in a polygonal shape or a circular shape in the upper part thereof. That is, in the frame structure 2, the number of column members 2a can be at least two, and the number of beam members 2b can be at least one. Furthermore, the column member 2a and the beam member 2b may be integrated, for example, the two column members 2a and one beam member 2b may be integrated in a portal frame shape, May be connected in a plurality of circumferential directions to be assembled as a structure. Further, the plurality of column members 2a may be vertically erected in the oblique direction (the vertical direction and the oblique direction may be combined and vertically erected). Specifically, for example, although not shown, the plurality of column members 2a are vertically inclined inward or outward and erected, and the frame structure 2 is directed to an upper portion such as a pyramid shape or a truncated pyramid shape A space region of a shape which becomes smaller first or a space region of a shape which becomes larger toward the upper part such as an inverted truncated pyramid shape may be defined inside. In the case of defining a pyramidal or truncated pyramidal space region, the aerosol injector 3 may be provided at the top of the space to spray aerosol from above the central region of the space region.

  Furthermore, in the frame structure 2, in the case of the present embodiment, both of the column member 2a and the beam member 2b use a pipe material, but in consideration of ease of assembly, expandability, etc., the pipe material is replaced Alternatively, an angled member such as an L-shaped cross section may be used. In either case, it is preferable that the material be flame-retardant or non-combustible.

  Next, the aerosol injector 3 of the present embodiment will be specifically described.

  In the present embodiment, the aerosol injector 3 is provided with four in total, one for each of the four sides so that the fire extinguishing aerosol AS can be sprayed toward the protection object OB from the four sides of the protection area AR. There is. Also, in order to prevent the fire extinguishing aerosol AS from reaching the object to be protected OB and to prevent the efficiency of the extinguishing action by the fire extinguishing aerosol AS from decreasing, the diagonal of the object to be protected OB is It is provided at a position obliquely above the protection object OB so that the fire extinguishing aerosol AS can be jetted from the upper position toward the protection object OB. Specifically, the four beam members 2b located diagonally above the object to be protected OB are provided to be supported, but are provided to be supported by each of the four column members 2a. Good. In addition, the number of the aerosol injectors 3 may be appropriately increased or decreased, and the arrangement may also be changed as appropriate.

  Furthermore, in the case of the present embodiment, as described above, one aerosol injector 3 is provided on each of four sides of the protection area AR as described above, and the fire extinguishing aerosol AS is directed to the protection object OB from four sides of the protection area AR. It is arranged to be jetted, but more specifically, the jet direction center line (the line passing through the center of the injection port and leading to the object to be protected OB) intersects the respective object to be protected OB It is arranged to be shifted up and down or left and right so as not to be. This makes it possible to prevent each of the extinguishing aerosols AS injected by the respective aerosol injectors 3 from moving the other away from the protective object OB or diffusing them, and extinguishing with the extinguishing aerosols AS It is possible to prevent the efficiency of the action from decreasing.

  Here, the aerosol injector 3 has an ignition unit for igniting an aerosol extinguishant (for example, potassium nitrate or the like) that generates an aerosol for fire extinguishing by combustion enclosed inside, although detailed illustration is omitted. ing. By operating the igniter, the aerosol extinguishant can be ignited and burned to generate the aerosol for fire extinguishing AS, which can be injected from the injection port. The method of activating the igniter and activating the aerosol injector 3 may be an electrification start type in which the igniter is ignited by energization, or a heat activated start type in which the igniter is ignited by impact by a thermal drive mechanism. It can also be done.

  FIGS. 1 and 2 (same as in the example shown in FIG. 6) show the case of using an electrification start type as the aerosol injector 3. As shown to the same figure, the aerosol fire extinguishing apparatus 1 is further provided with the electricity supply starting part 4 which has a switch of a manual operation type as the starting part. In the case of the present embodiment, four energization start parts 4 correspond to the four aerosol injectors 3 and are provided. The energization start parts 4 are provided at appropriate height positions of the column member 2 a so that a person can easily operate the switch. Moreover, the power supply of these electricity supply starting parts 4 can also be used as a built-in storage battery, and can also be used as an external power supply. Then, each energization start unit 4 is connected to the corresponding aerosol injector 3 via the wire 5 (only one wire 5 is shown for convenience of illustration), and the manual operation type switch is turned on. As a result, the ignition unit of the corresponding aerosol injector 3 can be energized and the aerosol injector 3 can be activated. The wires 5 are inserted into the column members 2a and the beam members 2b, which are pipe members, so that they can be prevented from burning due to a fire occurring in the protected area AR. Furthermore, in the case shown in FIG. 1, each energization start unit 4 can also remotely control the operation switch by wireless communication, and as shown in the figure, the remote activation unit 7 (also the drawing is modified) By operating, it is possible to activate each of the electrification activation units 4 individually or simultaneously by wireless communication, and to activate the aerosol injectors 3 individually or all together.

  In addition, in the case of using an electrification start type as the aerosol injector 3, a heat sensor is separately provided, and when a fire occurs, each electrification start unit 4 is automatically made individual based on a heat detection signal from the heat detector. Alternatively, they may be operated simultaneously. Also, instead of providing the energization start unit 4 individually, a control panel capable of centralized control of the plurality of aerosol injectors 3 is provided to control the on signal from the manually operated switch or the sensing signal from the heat sensor. A plurality of aerosol injectors 3 may be transferred individually or all at once via a board to operate. In addition, as a sensor, not only a heat sensor but other fire detectors and flame detectors may be used. In that case, if necessary, a fire receiver or the like may be provided.

  FIGS. 3 and 4 (as well as the examples shown in FIGS. 5 and 7) show the case of using a thermal activation type as the aerosol injector 3. Although not shown, each aerosol injector 3 has its own thermal drive mechanism. As the heat-sensitive drive mechanism portion, a heat-sensitive operation member such as a bimetal can be provided in the mechanism, and the action of the heat-sensitive operation member can be used to strike the igniter to perform ignition operation. In the case of using this type, it is not necessary to separately provide an activation unit or the like, and there is no need for a power supply. Further, when a fire occurs, the aerosol injector 3 can be automatically activated, and the aerosol fire extinguishing device 1 can be installed at a place where there are no people at all times.

  Next, the aspect which added the structure further to the aerosol fire extinguishing apparatus 1 is demonstrated.

  As described above, in the aerosol extinguishing apparatus 1, all the side surfaces of the protection area AR formed between the adjacent column members 2 a of the frame structure 2 are formed as the open surface, but as shown in FIG. A plate member 2d can be further provided to close the lower part of the side surfaces (for convenience of illustration, the plate member 2d is provided with a dot pattern). By providing the plate member 2d, the fire extinguishing aerosol AS injected from the aerosol injector 3 can be prevented from flowing out, and the efficiency of the fire extinguishing action by the fire extinguishing aerosol AS can be prevented from decreasing. it can.

  Specifically, in the case of the one shown in FIG. 6, one plate member 2d is provided at the bottom of each of three side surfaces formed as the open surface of the protection area AR, and a total of three plate members 2d are provided. There is. The number can be increased or decreased according to various conditions such as the environment of the open space where the device is installed, the protected area AR to be protected and the shape and size of the protected object OB, for example, protected area AR It may be provided on all the side faces formed as the open face of the cover, or may be provided on only one side face. Further, the height dimension of each plate member 2d does not exceed half the height dimension of the protection area AR so as not to be an obstacle for the work when performing various operations within the protection area AR. can do. That is, it can be made not to exceed half of the height dimension of the pillar member 2a.

  Moreover, the aerosol fire extinguishing apparatus 1 can be made movable by providing a moving means in the lower part of the frame structure 2. That is, for example, as shown in FIG. 7, by providing the caster 6 in the lower part of the frame structure 2, it can be made movable. Thereby, it is possible to easily move the protected area AR protected by the aerosol fire extinguishing device 1.

  Lastly, the operation of the aerosol fire extinguishing apparatus 1 will be briefly described by using the case of using the energization start type aerosol injector 3 as an example.

  When a fire FR occurs in the protected area AR protected by the aerosol fire extinguishing apparatus 1, the operator (operator) turns on the manual operation type switch of the energization start unit 4 or turns on the remote start unit 7 Then, each energization start unit 4 is operated, and each energization start unit 4 energizes the corresponding ignition unit of each aerosol injector 3. Each of the aerosol injectors 3 ignites and burns the aerosol extinguishing agent by energizing the igniter, generates the fire extinguishing aerosol AS and injects it toward the fire FR as shown in FIG. 1. The extinguishing aerosol AS has the property of suppressing the combustion, thereby extinguishing the fire FR.

  As mentioned above, although embodiment of this invention was described, this invention is not limited to said embodiment, A various change is possible within the range of the summary.

1: Aerosol fire extinguishing device 2: Frame structure 2a: Column member 2b: Beam member 2c: Connector 2d: Plate member 3: Aerosol injector 4: Energizing unit 5: Wiring 6: Castor 7: Remote unit

Claims (4)

An aerosol fire extinguishing device provided in an open space, wherein
A three-dimensional frame structure that encloses a protected area as a space area open to the outside, and an aerosol spray that is supported by the frame structure and sprays fire extinguishing aerosol toward the protected object located in the protected area Equipped with
The frame structure includes a plurality of column members erected around the protection area, and a beam member connecting upper portions of adjacent ones of the plurality of column members.
The aerosol fire extinguishing system according to claim 1, wherein the aerosol injector is supported by the beam member or the column member . An aerosol fire extinguishing device provided in an open space, wherein
A three-dimensional frame structure that encloses a protected area as a space area open to the outside, and an aerosol spray that is supported by the frame structure and sprays fire extinguishing aerosol toward the protected object located in the protected area Equipped with
The frame structure has a plurality of pillar members erected around the protection area, and closes a lower portion of a side surface of the protection area formed between adjacent ones of the plurality of pillar members. features and to Rue Arozoru extinguishing device to have at least one plate member is provided. An aerosol fire extinguishing device provided in an open space, wherein
A three-dimensional frame structure having a three-dimensional structure surrounding a protected area as a space area opened to the outside, and a plurality of sprayable fire extinguishing aerosols supported by the frame structure and directed to the protected object located in the protected area Equipped with an aerosol injector,
Before Kifuku number of aerosol injector characteristics and to Rue Arozoru fire extinguisher that the injection direction center line of the extinguishing aerosol toward each of the protection object is arranged so as not to intersect. The aerosol fire extinguishing device according to claim 3 , wherein the frame structure has a plurality of pillar members erected around the protection area .

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