Fire extinguishing facility

Abstract

To provide a fire extinguishing facility that facilitates installation work.SOLUTION: A fire extinguishing facility 1 comprises a fire extinguishing grenade shooting device 2, and is provided in a building 20. The fire extinguishing grenade shooting device 2 comprises a storage part 2b in which a fire extinguishing grenade 2a filled with a fire extinguishing agent is stored, and a shooting mechanism part 2c for shooting the fire extinguishing grenade 2a. At normal times, the storage part 2b and the shooting mechanism part 2c are housed in an attic 22 above a protective space. In case of fire, the shooting mechanism part 2c moves down from the attic 22, is exposed to the inside of the protective space 24, and shoots the fire extinguishing grenade 2a toward a fire source F.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a fire extinguishing system using a fire extinguishing grenade launcher. [Background technology]

[0002] 2. Description of the Related Art Fire extinguishing equipment is installed in buildings and other fire-prevention targets and is used to extinguish fires.

[0003] There are various types of fire extinguishing systems, and a typical example is a sprinkler system, which automatically releases water from a head to extinguish a fire when a fire occurs (see, for example, Non-Patent Document 1). [Prior art documents] [Non-patent literature]

[0004] [Non-Patent Document 1] Sprinkler equipment (product information), [online], Nohmi Bosai Co., Ltd., [searched March 18, 2024], Internet<URL:https: / / www.nohmi.co.jp / product / water_system / 001.html> Summary of the Invention [Problem to be solved by the invention]

[0005] Incidentally, when installing a sprinkler system, it is necessary to lay pipes for supplying water to the head along the framework of the building or the like (see Non-Patent Document 1). In particular, a large number of pipes must be laid behind the installation surface, such as the ceiling, on which the head is installed. Therefore, sprinkler systems have the problem that the piping work and installation work are not easy.

[0006] This is a problem that is not limited to sprinkler systems, but is common to all fire extinguishing systems that release extinguishing agent from a head.

[0007] In view of the above circumstances, an object of the present invention is to provide a fire extinguishing system that can be easily installed. [Means for solving the problem]

[0008] This invention is a fire extinguishing system equipped with a fire extinguishing shell launcher and installed in a building, the fire extinguishing shell launcher having a storage section in which fire extinguishing shells filled with a fire extinguishing agent are stored, and a launching mechanism section for launching the fire extinguishing shells, the storage section and the launching mechanism section being normally stored in the attic above a protected space, and in the event of a fire, the launching mechanism section descends from the attic and becomes exposed inside the protected space, and launches the fire extinguishing shells toward the source of the fire.

[0009] In this invention, the storage unit may remain in the ceiling space in the event of a fire. The launching mechanism may descend below the storage unit in the event of a fire, and the fire extinguishing shells may fall under their own weight and be supplied to the launching mechanism. The launching mechanism may be configured to tilt its launch nozzle downward and forward when it descends from the ceiling and becomes exposed within the protected space in the event of a fire. A flame detector and a visible light camera may be further included, and the launch direction of the fire extinguishing shells may be adjusted to face a fire source location identified based on output signals from the flame detector and the visible light camera in the event of a fire. A plurality of the fire extinguishing shell launchers may be provided in a building together with a fire alarm system. In the event of a fire, one or more of the fire extinguishing shell launchers that are located near the fire source and within the fire extinguishing shell effective range may be selected based on an output signal from the fire alarm system, and the selected one or more fire extinguishing shell launchers may be activated. [Effects of the Invention]

[0010] The fire extinguishing equipment of this invention includes a fire extinguishing grenade storage unit and a firing mechanism unit, and is equipped with a fire extinguishing grenade launcher that functions as a stand-alone fire extinguishing device. Therefore, when installing the equipment in a building, it is not necessary to install piping into the building.

[0011] Therefore, according to the present invention, it is possible to provide a fire extinguishing system that can be easily installed. [Brief explanation of the drawings]

[0012] [Figure 1] FIG. 1 shows an example of an embodiment of a fire extinguishing system of the present invention, and is an explanatory diagram showing the system configuration when the fire extinguishing system is installed in a building together with an automatic fire alarm system, together with the structure of the building. [Figure 2] FIG. 2 is an enlarged view of the fire extinguishing grenade launcher in the stored state of the fire extinguishing equipment. [Figure 3] 2 is an explanatory diagram showing the system configuration of the fire extinguishing equipment of the same as the above in the form of a block diagram together with the flow of signals, etc. DETAILED DESCRIPTION OF THE INVENTION

[0013] Hereinafter, an example of an embodiment of a fire extinguishing system of the present invention will be described with reference to the drawings, taking as an example a case where the fire extinguishing system is installed in a building together with a fire alarm system.

[0014] In addition, the terms "up," "down," "left," "right," and other terms indicating positions and directions used in explaining this invention are used in accordance with the positions and directions when the fire extinguishing equipment is installed in a building (as shown in Figures 1 and 2).

[0015] [Fire extinguishing equipment] The fire extinguishing system 1 is installed in a building 20 as a fire prevention object, and includes a fire extinguishing grenade launcher 2 that functions as a fire extinguishing device (see FIG. 1). The fire extinguishing grenade launcher 2 is installed in an attic 22 behind a ceiling 21 of the building 20 as a protected space 24 below the ceiling 21 as a protected object. The fire extinguishing system 1 is installed in the building 20 together with an automatic fire alarm system 10 (an example of a fire alarm system).

[0016] [Fire alarm system] The automatic fire alarm system 10, together with the fire extinguishing system 1, is installed in a building 20 as a fire prevention object, and includes a fire detector 11 such as a smoke detector that detects fires, and a fire receiver 12 that receives a fire signal from the fire detector 11 and issues an alarm or sounds an alarm means such as a district bell (see FIG. 1). The fire detector 11 is installed on the ceiling 21 of the building 20 to monitor a protected space 24 below the ceiling 21, and the fire receiver 12 is installed in a control room 25 that can serve as a disaster prevention center or central control room for the building 20. An electrical conduit 13 through which signal and power lines are inserted is laid between the fire receiver 12 and the fire detector 11, and the two are connected by the signal and power lines that are inserted through the electrical conduit 13.

[0017] [Storage section] More specifically, the fire extinguisher launcher 2 is stored in a storage section 23 provided in the ceiling space 22 (see FIGS. 1 and 2). An opening 23a is formed in the ceiling 21 at the bottom of the storage section 23, and the opening 23a is used to lower the launch mechanism section 2c from the storage section 23 and expose it in the protected space 24 in the event of a fire. A lid 23b is also provided to open and close the opening 23a (see FIG. 2).

[0018] [Fire Extinguisher Launcher] ·Basic configuration The fire extinguisher launcher 2 has a storage section 2b for storing fire extinguisher bullets 2a filled with a fire extinguishing agent, and a launching mechanism section 2c for launching the fire extinguisher bullets 2a (see FIGS. 1 and 2). In other words, the fire extinguisher launcher 2 functions as a fire extinguisher by itself.

[0019] The fire extinguishing grenade launcher 2 is normally stored in a storage section 23 as a whole, including the storage section 2b and the launching mechanism section 2c, and in the event of a fire, the launching mechanism section 2c descends from the storage section 23 and is exposed within the protected space 24 (see Figures 1 and 2).

[0020] By including the fire extinguishing grenade launcher 2, the fire extinguishing equipment 1 can eliminate the need for piping work in the building 20 when installing the equipment in the building 20, thereby facilitating the installation work.

[0021] Specific examples Fire extinguishing bullets The fire extinguishing bullets 2a are those in which a container filled with fire extinguishing agent breaks upon impact, thereby scattering the fire extinguishing agent. Examples of fire extinguishing bullets include capsules made of resin, glass, hard gelatin, etc., in which a liquid fire extinguishing agent such as a reinforced liquid, water containing a third-class wetting agent, or a foam fire extinguishing agent is enclosed, or solid fire extinguishing agents such as powder fire extinguishing agents or dry fire extinguishing sand are solidified into an approximately spherical shape or wrapped around the shell.

[0022] ·Equipment configuration In addition to the storage unit 2b and the launching mechanism unit 2c, the fire extinguishing grenade launching device 2 further includes a pressure device 2d that supplies compressed air or pressurized gas to the launching mechanism unit 2c, a flame detector 2e and a visible camera 2f that perform tasks such as detecting the location of the fire source, a control unit 2g that controls various operations and sends and receives signals, and a pipe 2h that serves as a supply path for the fire extinguishing grenade 2a from the storage unit 2b to the launching mechanism unit 2c (see Figures 1 and 2).

[0023] ··Layout (Layout of remaining storage unit) In the fire extinguisher launcher 2, the launching mechanism 2c is located at the bottom and is provided to descend from within the storage section 23 in the event of a fire, while the storage section 2b is located at the top and is provided to be fixed in position within the storage section 23. In other words, in the event of a fire, the launching mechanism 2c is provided to descend from within the storage section 23, while the storage section 2b is provided to remain within the storage section 23 (see Figures 1 and 2).

[0024] The storage section 2b stores a large number of fire extinguishing grenades 2a and is therefore heavy. In the event of a fire, the storage section 2b may also be configured to descend from within the storage section 23, but if the storage section 2a, which is heavy, is configured to remain within the storage section 23, the load on the descending mechanism section (not shown), which will be described later, when the firing mechanism section 2c descends from within the storage box 23 can be reduced.

[0025] In the illustrated example, among the other parts of the fire extinguishing grenade launcher 2, the control unit 2g remains in the storage unit 2b within the storage unit 23, while the pressure device 2d, the flame detector 2e, and the visible camera 2f descend together with the launch mechanism unit 2c (see FIG. 1). The control unit 2g may also descend together with the launch mechanism unit 2c, but by remaining in the storage unit 2b within the storage unit 23, the load on the descending mechanism unit can be reduced.

[0026] In addition, the illustrated example shows a case where the launch mechanism 2c, pressure device 2d, flame detector 2e, and visible camera 2f, which descend in the event of a fire, are placed on the back surface of the lid 23b and stored in the storage section 23 (see Figures 1 and 2).

[0027] ·Descent mechanism part Although not shown, the fire extinguishing equipment 1 further includes a lowering mechanism that, in the event of a fire, lowers the firing mechanism 2c and the like from inside the storage section 23 to expose them inside the protected space 24. In the example shown, the lowering mechanism is provided to tilt the lid 23b downward and forward to open the opening 23a, and then tilt the firing mechanism 2c and the like placed on the back surface downward and forward together with the lid 23b to expose them inside the protected space 24.

[0028] In the event of a fire, when the firing mechanism 2c is lowered by this lowering mechanism and exposed inside the protected space 24, the firing port 2caa, which will be described later, is tilted downward and forward. This allows, for example, after the descent, when the direction of the firing port 2caa is changed to adjust the firing direction of the fire extinguishing bullets toward the fire source F, the adjustment can be made quickly.

[0029] When the lowering mechanism moves lid 23b downward and forward, it can be, for example, a damper hinge that rotates lid 23b about a horizontal axis, supports it so that it can be opened and closed, and controls the opening and closing speed. The hinge and damper may be separate parts, but by using a damper hinge, it is possible to reduce the number of parts and also to prevent the damper from getting in the way when moving movable parts such as firing mechanism 2c placed on the back surface of lid 23b.

[0030] ·Release mechanism Although not shown in the drawings, the lid 23b is normally maintained in a closed state by a latch member or other hooking member, and the fire extinguishing equipment 1 further includes a release mechanism that releases the hooking member from the locked state in the event of a fire. The release mechanism can be, for example, a solenoid or the like that releases the hooking member from the locked state based on an activation signal output from the general control unit 3 described below.

[0031] ...lower position The firing mechanism 2c is provided to descend below the storage unit 2b in the event of a fire (see Figure 1). By positioning the firing mechanism 2c below the storage unit 2b, the fire extinguishing grenades 2a can be supplied to the firing mechanism by falling under their own weight from the storage unit 2b through the pipe 2h.

[0032] Flexible pipe The pipe 2h connects the storage section 2b and the firing mechanism section 2c as a supply path for the fire extinguishing bullets 2a, but since the positional relationship between the storage section 2b and the firing mechanism section 2c changes when the firing mechanism section 2c descends, it is preferable to use a flexible pipe that can accommodate this change in positional relationship.

[0033] Firing mechanism The firing mechanism 2c has a firing nozzle 2caa at its tip for the fire extinguishing grenade 2a and a barrel 2ca extending laterally (see Figures 1 and 2). The firing power source can be compressed air or pressurized gas. The pressurizing device 2d supplies the firing mechanism 2c with compressed air from an air piston or pressurized gas from a gas cylinder, which serves as the power source.

[0034] ··Fire direction change and adjustment function The firing mechanism 2c is provided so that the firing direction of the fire extinguishing grenade 2a can be changed in the vertical and horizontal directions. As a changing means, for example, the barrel 2ca can be made rotatable about a horizontal axis and a vertical axis, so that the orientation of the firing port 2caa can be changed in the vertical and horizontal directions.

[0035] The firing mechanism unit 2c is capable of changing the firing direction of the fire extinguishing shells 2a, thereby making it possible to adjust the firing direction of the fire extinguishing shells 2a toward the fire source location analyzed and identified by the integrated control unit 3 based on the output signals of the flame detector 2e and the visible camera 2f, which will be described later.

[0036] Fire rate (range) limiting function The firing mechanism unit 2c is configured not to fire the fire extinguishing bullet 2a beyond a predetermined upper limit of firing speed or range so that it does not become a firearm, the possession of which is prohibited under the Swords and Firearms Control Law (Act on the Control of Possession of Firearms and Swords and Other Such Weapons).

[0037] Flame detectors, visible light cameras In the fire extinguishing shell launcher 2, the flame detector 2e and the visible light camera 2f are provided to determine the existence of a fire and identify the location of the fire source, and both have a search range with a predetermined angle in the vertical and horizontal directions. Furthermore, both are provided so that the search direction can be changed in the vertical and horizontal directions, similar to the launch direction of the fire extinguishing shells 2a of the launch mechanism unit 2c. The output signals of the search results from the flame detector 2e and the visible light camera 2f are sent to the general control unit 3, which will be described later, and the general control unit 3 performs image analysis and other processes to determine the existence of a fire and identify the location of the fire source. More specifically, a fire is determined (whether or not a fire has occurred) based on the output signal from the flame detector 2e, and the detailed location of the fire source is identified based on the output signal from the visible light camera 2f.

[0038] Control unit The control unit 2g transmits and receives signals to and from the overall control unit 3, which will be described later, and controls the operation of the lowering mechanism unit, the firing mechanism unit 2c, the flame detector 2e, and the visible camera 2f based on the output signal of the overall control unit 3 (see Figures 1 and 2).

[0039] [General Control Unit] The fire extinguishing equipment 1 further includes a central control unit 3 that centrally controls the operation of the multiple fire extinguishing grenade launchers 2 (see FIG. 1). The central control unit 3 is provided in a control room 25 together with a fire receiver 12. An electric conduit 4 through which a signal line and a power supply line are inserted is laid between the fire extinguishing grenade launchers 2 and the central control unit 3, and the two are connected by the signal line and the power supply line that are inserted into the electric conduit 4. In addition, an electric conduit 14 through which a signal line and a power supply line are inserted is laid between the fire receiver 12 and the central control unit 3, and the two are connected by the signal line and the power supply line that are inserted into the electric conduit 14.

[0040] -Fire grenade launcher selection and activation function In the event of a fire, the integrated control unit 3 receives a fire signal including rough location information of the fire source from the fire receiver 12, and based on that signal, selects one or more fire extinguishing bullet launchers 2 that are located within the effective range (the range within which the fire source can be aimed and hit) and are close to the fire source location from among the multiple fire extinguishing bullet launchers 2, and outputs an activation signal to start descending. At this time, the fire extinguishing bullet launcher 2 closest to the fire source F is not necessarily selected (see Figure 1).

[0041] -Fire detection and fire source location function When the integrated control unit 3 receives the output signals of the detection results from the flame detector 2e and visible camera 2f of the fire extinguisher bullet launcher 2, it determines whether a fire exists and identifies the location of the fire source based on the signals through image analysis or the like (see Figure 3). Once a fire has been determined and the fire source location has been identified, it outputs a fire extinguishing start signal containing detailed location information of the fire source to the fire extinguisher bullet launcher 2 that was activated first. At this time, it is possible to output the fire extinguishing start signal only to those of the fire extinguisher bullet launchers 2 that were activated first but were not able to determine whether a fire exists or identify the fire source location. Alternatively, if at least one fire extinguisher bullet launcher 2 has been able to determine whether a fire exists or identify the fire source location, it is also possible to output the fire extinguishing start signal to all of the fire extinguisher bullet launchers 2 that were activated first.

[0042] [Operation in case of fire] In the event of a fire, the fire extinguishing system 1 cooperates with the automatic fire alarm system 10 to automatically perform the following operations leading up to the fire extinguishing operation, for example (see FIGS. 1 to 3).

[0043] When a fire occurs at fire source F, the fire detector 11 of the automatic fire alarm system 10 detects it and outputs a fire signal to the fire receiver 12. Upon receiving the fire signal, the fire receiver 12 outputs the fire signal including rough location information of the fire source to the integrated control unit 3 of the fire extinguishing system 1.

[0044] When the integrated control unit 3 receives a fire signal, based on the signal, it selects from among the multiple fire extinguishing shell launchers 2, a fire extinguishing shell launcher 2 that is located within the effective range of the fire source F and is located close to the fire source F, and outputs an activation signal to start descending.

[0045] When the fire extinguishing grenade launcher 2 receives an activation signal from the central control unit 3, it lowers the launching mechanism unit 2c and other components from the storage unit 23 to expose them in the protected space 24. Then, it first searches the protected space 24 using the flame detector 2e and the visible camera 2f, and outputs a signal of the search results to the central control unit 3.

[0046] When the integrated control unit 3 receives the detection result signal from the fire extinguishing bullet launcher 2, it determines whether or not a fire has occurred based on the signal, and if it determines that a fire has occurred, it identifies the location of the fire source F. Once the location of the fire source F has been identified, it outputs a fire extinguishing start signal including detailed location information of the fire source to the fire extinguishing bullet launcher 2.

[0047] When the fire extinguishing bullet launcher 2 receives a fire extinguishing start signal from the integrated control unit 3, it adjusts the orientation of the barrel 2ca of the launching mechanism unit 2b based on the signal, adjusts the launch direction of the fire extinguishing bullets 2a toward the fire source F, and launches the fire extinguishing bullets 2a. In this way, the fire originating from the fire source F is extinguished. The fire extinguishing bullet launchers 2 that launch the fire extinguishing bullets 2a may be all fire extinguishing bullet launchers 2 located within the effective range, or one or a predetermined number of fire extinguishing bullet launchers 2 may be selected.

[0048] The firing direction of the fire extinguishing grenade 2a may be adjusted by a fire prevention manager or the like in the control room 25 manually changing the direction of the barrel portion 2ca of the firing mechanism portion 2b by remote control while watching the image from the visible camera 2f.

[0049] [Configuration change example] An example of an embodiment of a fire extinguishing equipment using the fire extinguishing grenade launcher of the present invention has been described above with reference to the drawings, but the present invention is not limited to the above embodiment, and modifications to the configuration are possible within the scope of the gist of the invention.

[0050] For example, the process of determining whether a fire has occurred and identifying the location of the fire source based on the output signals of the flame detector 2e and the visible camera 2f may be performed by the control unit 2g provided in the fire extinguisher grenade launcher 2 instead of by the integrated control unit 3.

[0051] Furthermore, instead of the flame detector 2e and the visible camera 2f being individually provided on the fire extinguishing grenade launcher 2 and descending together with the launch mechanism unit 2c, they may be fixed and exposed within the protected space 24, for example, fixed to the ceiling T.

[0052] The lowering mechanism may be configured to move the lid 23b in a direction perpendicular to the T-shaped surface of the ceiling, instead of tilting the lid 23b downward. In this case, the firing mechanism 2c may be provided with another firing port on the opposite side of the firing port 2caa. [Explanation of symbols]

[0053] 1: Fire extinguishing equipment 2: Fire extinguishing grenade launcher 2a: Fire extinguishing grenade 2b: Storage unit 2c: Firing mechanism 2ca: Barrel 2d: Pressure device 2e: Flame detector 2f: Visible camera 2g: Control unit 2h: Pipe 3: General control unit 4: Electrical conduit 10: Automatic fire alarm system 11: Fire detector 12: Fire receiver 13: Electrical conduit 14: Electrical conduit 20: Building 21: Ceiling 22: Attic 23: Storage section 23a: Opening 23b: Lid 24: Protected space 25: Control room F:Fire source

Claims

1. A fire extinguishing system provided in a building, comprising a fire extinguishing grenade launcher, The fire extinguishing bullet launcher has a storage section in which fire extinguishing bullets filled with a fire extinguishing agent are stored, and a launch mechanism section that launches the fire extinguishing bullets, and the storage section and the launch mechanism section are normally stored in the ceiling space above the protected space, and in the event of a fire, the launch mechanism section descends from the ceiling space and becomes exposed inside the protected space, and launches the fire extinguishing bullets toward the source of the fire.

2. 2. The fire extinguishing system according to claim 1, wherein the storage unit remains in the ceiling space in the event of a fire.

3. In the event of a fire, the firing mechanism descends below the storage unit, 2. The fire extinguishing system according to claim 1, wherein the fire extinguishing bullets fall under their own weight and are supplied to the firing mechanism.

4. 2. The fire extinguishing equipment according to claim 1, wherein, in the event of a fire, when the firing mechanism descends from the ceiling and becomes exposed within the protected space, the firing nozzle of the fire extinguishing bullets is tilted forward and downward.

5. A plurality of the fire extinguishing grenade launchers are provided in a building together with a fire alarm system, A fire extinguishing system according to any one of claims 1 to 4, characterized in that in the event of a fire, one or more of the plurality of fire extinguishing shell launchers are selected based on an output signal from the fire alarm system, and the fire source position is within the effective range of the fire extinguishing shells and one or more of the fire extinguishing shell launchers located near the fire source position are activated, and the selected one or more of the fire extinguishing shell launchers are activated.

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