JP2009160382A - Smoke extinguisher - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To perform use even in a place where power cannot be secured upon a fire without the need of electric fire detection and ignition, and to lower costs as well. <P>SOLUTION: When a thermosensitive plate 16 reaches a prescribed temperature, low temperature solder melts and thermally decomposes and a stem 30 is pushed by a spring 35 and springs out. By the spring-out of a screw stem 30 when the thermosensitive plate 16 is decomposed, a rubbing agent 42 provided in an ignition mechanism and an igniting agent 44 on the side of a solid extinguisher 36 are mechanically frictioned and moved to ignite the solid extinguisher 36, extinguishing aerosol 60 is generated by the combustion of the solid extinguisher and the extinguishing aerosol 60 is jetted from a jetting port. <P>COPYRIGHT: (C)2009,JPO&amp;INPIT

Description

The present invention relates to a smoke extinguishing device that suppresses a fire by generating a fire extinguishing aerosol by burning a solid fire extinguisher.

  Conventionally, there are known smoke-extinguishing devices that generate fire-fighting aerosols by igniting and burning solid fire extinguishing agents in order to suppress fires that occur in closed closed spaces such as cable ducts, control panels, and equipment enclosures. It has been.

In such a smoke-extinguishing device, when a fire is detected by a sensor, an electric signal is sent to the ignition device of the smoke-extinguishing device, and the solid fire extinguisher is ignited and burned. The aerosol generated by the combustion of the solid fire extinguishing agent contains, for example, potassium chloride and potassium bromide as main components, and additionally contains water, carbon dioxide and nitrogen, and can suppress fire extinguishing by a combustion suppressing action.
JP 2005-503853 A JP-A-6-269513

  However, in such a conventional smoke-extinguishing device, the start-up of the solid fire extinguisher by ignition and combustion is all performed by an electrical signal. However, in the event of a fire, the power source at the location of the fire is usually turned off. Or a power outage may occur. Therefore, it is necessary to prepare a dedicated uninterruptible power supply for the smoke-extinguishing device, which increases the cost. In addition, there is a problem that a place where an uninterruptible power supply cannot be prepared cannot be used, and usage conditions are restricted.

An object of the present invention is to provide a smoke-extinguishing apparatus that can be used even in a place where a power source cannot be secured in the event of a fire without requiring electrical fire detection and ignition.

The present invention is a smoke-extinguishing device,
A housing with a spout for ejecting fire-fighting aerosol;
A solid fire extinguisher housed in a housing and generating a fire extinguishing aerosol by combustion;
A heat-sensitive operating unit that is arranged in a housing and operates at a predetermined temperature;
An ignition mechanism for igniting and burning a solid fire extinguisher by mechanical operation when the heat-sensitive operation unit is activated;
It is provided with.

Here, the thermal operation part is
A thermosensitive part that monitors the temperature around the detection target and decomposes at a predetermined temperature;
A stem slidably housed between the heat sensitive part and the solid fire extinguisher in the housing;
An elastic member for urging the stem;
When the heat sensitive part is thermally decomposed, the stem is moved by an elastic member,
The ignition mechanism
A rubbing agent attached to the position of the stem relative to the solid fire extinguishing agent;
An ignition agent provided on the solid extinguishing agent side relative to the rubbing agent;
And a configuration in which the rubbing agent is brought into frictional contact with the igniting agent by the movement of the stem when the heat-sensitive operation unit is disassembled and ignited. That is, the ignition mechanism moves the rubbing agent side to ignite with the solid fire extinguisher as the fixed side.

In addition, the thermal operation part
A thermosensitive part that monitors the temperature around the detection target and decomposes at a predetermined temperature;
A stem slidably housed between the heat sensitive part and the solid fire extinguisher in the housing;
An elastic member for urging the stem;
When the heat sensitive part is thermally decomposed, the stem is moved by an elastic member,
The ignition mechanism
An ignition agent provided in the solid fire extinguishing agent;
Rubbing agent fixed on the housing side relative to the ignition agent,
The solid-fire extinguisher igniting agent is brought into frictional contact with the fixed side rubbing agent by the movement of the stem when the heat-sensitive operation unit is disassembled and ignited. That is, the ignition mechanism moves the ignition agent provided on the solid extinguisher side with the rubbing agent as the fixed side to cause ignition.

  The housing is divided into two compartments inside the box-shaped housing, and a spout is formed on the front end side of one compartment, and a communication port communicating with the other compartment is opened on the rear end side, and is arranged in the other compartment A flue structure that suppresses the ejection of flames to the outside due to the burning of solid fire extinguishing agent. In the flue structure, a wire mesh or a filter may be arranged at the communication port.

  The ignition mechanism includes an igniter in which at least an oxidant and an easily oxidizable substance are separately disposed, and the oxidant and the easily oxidizable substance are solidly extinguished by a mechanical operation when the heat-sensitive operation unit is activated. The solid fire extinguisher is ignited by the heat generated by this contact.

  Here, the easily oxidizable substance is a highly viscous liquid easily oxidizable substance, and more preferably glycerin.

  In addition, the ignition mechanism includes a container filled with an easily oxidizable substance, and the oxidant is disposed in the storage hole formed in the solid fire extinguisher and the container is disposed on the hole opening side to be sealed, and the heat sensitive operation part. When the is activated, the container is crushed with a crushing tool and the oxidizable substance is brought into contact with the oxidizing agent.

  The ignition mechanism includes a container in which an oxidant and an easily oxidizable substance are individually enclosed. The ignition mechanism is disposed in a storage hole formed in a solid fire extinguisher, and the container is crushed by a crushing tool when the thermal operation unit is activated. In contact with an easily oxidizable substance and an oxidizing agent.

  The crushing tool is a cutter, which cuts and crushes the container by the movement of the cutter when the heat sensitive operation part is activated.

  The ignition mechanism includes a container in which the easily oxidizable substance is enclosed, and the container is disposed and sealed in the vicinity of the solid fire extinguishing agent, and the oxidant is disposed in the vicinity of the heat-sensitive operation unit, and the heat-sensitive operation unit is activated. When this occurs, the container is crushed with a crushing tool and the oxidizable substance is brought into contact with the oxidant.

  In this case, when the heat-sensitive operation unit is activated, the heat-sensitive operation unit and the crushing tool are discharged out of the casing to open the jet nozzle.

The solid fire extinguisher is normally sealed in the casing in a monitoring state, and communicates between the spout and the solid fire extinguisher storage section when the heat sensitive operation section is activated.

  According to the present invention, it is possible to detect a fire only by a mechanical mechanism structure, ignite a solid fire extinguisher and generate a fire extinguishing aerosol by combustion, and no electricity is required, so an uninterruptible power supply is unnecessary, Moreover, even if it is a place where an uninterruptible power supply cannot be prepared, it can be used, and the application target can be expanded.

In addition, since it is only necessary to provide a heat-sensitive actuator, ignition mechanism, and solid fire extinguisher on the housing, the structure is simple and the size and cost can be reduced. In particular, office equipment that may ignite, such as copying and laser printing. It can be incorporated directly into home appliances, control panels, etc., and can respond appropriately even in the event of an equipment fire, greatly improving the safety of applicable equipment and location.

  FIG. 1 is an explanatory view showing an embodiment of a smoke-extinguishing device according to the present invention. In FIG. 1, the smoke-extinguishing device 10 of the present embodiment forms a casing with a main body 12 and a cover 14. The main body 12 has a box-shaped case shape opened at the upper part made of metal, and a heat sensitive plate 16 of a heat sensitive operating part that is decomposed and operated at a predetermined fire temperature is provided on the front part.

  Similarly, a metal cover 14 is attached to the upper portion of the main body 12, and by the attachment of the cover 14, an ejection port 18 for ejecting the fire-extinguishing aerosol generated by the combustion of the solid fire extinguisher is formed.

  FIG. 2 is a cross-sectional view showing the internal structure of the embodiment of FIG. In FIG. 2, the smoke-extinguishing device 10 includes a main body 12 and a cover 14, and a partition plate 20 is fixed to the upper part of the main body 12.

  The partition plate 20 has a communication port 26 opened on the rear side, and passes from the storage portion 22 in the main body 12 through the communication port 26 to the flue portion 24 formed between the cover 14 and the partition plate 20. An aerosol ejection passage extending from the road portion 24 to the ejection port 18 is formed. A flame ejection preventing member 64 is disposed in the middle of the communication port 26 and the flue portion 24 as necessary.

  A cylindrical member 28 is fixed to the storage portion 22 of the main body 12, and a connecting ring 31 is screwed into a front end portion exposed to the front of the cylindrical member 28, and the heat sensitive plate 16 is attached to the front end of the connecting ring 31 at a low temperature solder. 32 is fixed. The low-temperature solder 32 is melted at, for example, 72 ° C. and can be disassembled from the cylindrical member 28.

  A stem 30 is provided inside the cylindrical member 28 so as to be movable in the axial direction. In the present embodiment, a screw shaft is used as the stem 30. A push nut 34 is screwed and fixed to the tip of the stem 30. A spring 35 is incorporated between the push nut 34 and the inner end of the cylindrical member 28 on the opposite side, and the stem 30 is urged forward by the spring 35. .

  The rear portion of the stem 30 passes through the cylindrical member 28 and is taken out into the storage portion 22. A solid fire extinguisher 36 is disposed on the rear side of the storage portion 22 of the main body 12 via a heat insulating material 38. The solid fire extinguisher 36 generates a fire extinguishing aerosol by combustion. The aerosol generated by the combustion of the solid fire extinguisher 36 is an ultrafine particle having a particle diameter of 2 μm or less, and its component contains carbonate, phosphate, or a mixture thereof.

  Specifically, the aerosol is condensed particles such as potassium chloride, sodium chloride, sodium carbonate, potassium sulfate and the like, and additionally contains nitrogen, carbon dioxide, water vapor and the like. The aerosol is extinguished by filling the monitoring area where the fire broke out and suppressing and extinguishing the fire center of the fire at the place where the fire occurred. In addition, since aerosols are mainly composed of carbonates or phosphates, aerosols are non-toxic and environmentally friendly.

  The weight of the solid fire extinguisher 36 generated by burning the aerosol is 80 to 200 grams necessary for the monitoring area of 1 cubic meter, and based on this, the monitoring area for installing the smoke-extinguishing device 10 of the present embodiment is used. An amount of solid fire extinguishing agent 36 corresponding to the volume is accommodated.

  An ignition agent 44 is attached to the upper part of the solid fire extinguishing agent 36. On the other hand, a rubbing plate 40 bent in an L-shape by nuts 46 and 48 is fixed to the tip of the stem 30 taken rearward from the cylindrical member 28, and is opposed to the solid fire extinguisher 36 of the rubbing plate 40. A rubbing agent 42 is applied to the surface.

  The initial position of the rubbing agent 42 on the rubbing plate 40 is located behind the ignition agent 44 disposed on the solid fire extinguishing agent 36, and the mechanical position with the ignition agent 44 when the rubbing agent 42 is moved by the heat-sensitive operation unit. The igniting agent 44 is ignited by an appropriate friction so that the solid extinguishing agent 36 can be ignited.

  On the upper part of the rubbing plate 40, a presser plate 40 is fixed and arranged on the main body 12 side, and the upward movement when the rubbing plate 40 moves is restricted so that the rubbing agent 42 surely rubs the ignition agent 44. ing.

  Here, in this embodiment, the heat sensitive plate 16, the cylindrical member 28, the stem 30, the low temperature solder 32, the push nut 34 and the spring 35 constitute a heat sensitive operation part, and the rubbing agent 42 of the rubbing plate 40 and the solid fire extinguishing. An ignition mechanism 44 that ignites and burns the solid fire extinguisher 36 by a mechanical frictional operation when the heat-sensitive operation unit is disassembled is constituted by the ignition agent 44 provided in the agent 36.

  A limit switch 25 for outputting a transfer signal to the outside is disposed below the stem 30.

  FIG. 3 is an explanatory view showing a state where the cover 14 of FIG. 1 is removed. In FIG. 3, a partition plate 20 is attached and fixed to the upper opening of the main body 12 with screws so as to form a communication port 26 for allowing aerosol to pass rearward.

  FIG. 4 is a plan view showing the internal structure with the partition plate 20 of FIG. 3 removed. In FIG. 4, the cylindrical member 28 is fixed to the front side of the main body 12 by a fixing member 52, the tip of the cylindrical member 28 is exposed to the outside, and the heat sensitive plate 16 is fixed thereto by the low temperature solder 32.

  A sliding plate 40 is fixed to the rear end of the stem 30 taken out from the rear portion of the cylindrical member 28 by nuts 46 and 48. A presser plate 50 that restricts the upward movement of the sliding plate 40 is disposed on the upper portion of the sliding plate 40.

  FIG. 5 is an explanatory diagram showing the operation of the embodiment of FIG. For example, when the smoke-extinguishing device 10 of the present embodiment is housed in a device and a fire occurs inside due to overheating of, for example, a heater built in the device, as shown in FIG. The heat sensitive plate 16 fixed to the tip of the cylindrical member 28 by the low-temperature solder 32 receives heat from the fire and melts when the temperature applied to the low-temperature solder 32 exceeds 72 ° C. As shown in FIG. When pressed, the stem 30 performs a thermal decomposition operation that pushes the heat-sensitive plate 16 in which the low-temperature solder is melted and protrudes forward.

  By the advance of the stem 30 accompanying this thermal decomposition operation, the rubbing plate 40 attached to the rear part thereof moves by rubbing the ignition agent 44 provided on the solid fire extinguishing agent 36, and just igniting the match, the rubbing agent 42 similarly. The ignition agent 44 is ignited by the friction caused by the mechanical movement of the solid fire extinguishing agent 36 and ignites the solid fire extinguishing agent 36 for combustion.

  The solid fire extinguisher 36 that has started combustion by ignition generates a fire extinguishing aerosol 60, passes through the flue portion 24 in the cover 14 from the rear communication port 26 of the partition plate 20, and extinguishes from the front jet outlet 18. For example, it is ejected into the equipment.

  Here, when the solid fire extinguisher 36 is ignited and burned, a flame is generated by the combustion of the solid fire extinguisher 36. However, a sufficient distance from the solid fire extinguisher 36 to the jet port 18 of the aerosol 60 is secured. Therefore, the flame due to the combustion of the solid fire extinguishing agent 36 does not spout from the jet outlet 18 to the outside.

  In order to more effectively prevent the flame from being ejected by the solid fire extinguishing agent 36, it is desirable to arrange a flame ejection preventing member 64 that passes only an aerosol such as a wire mesh in the middle of the flue portion 24.

  The extinguishing mechanism by the aerosol 60 ejected from the ejection port 18 by the combustion of the solid fire extinguishing agent 36 eliminates the active center (free radical) that plays a role in generating combustion at the position where a fire is generated on the surface of the solid portion of the aerosol. To extinguish the fire.

  Further, when the solid fire extinguisher 36 burns, heat is generated. However, since the solid fire extinguisher 36 is disposed in the main body 12 via the heat insulating material 38, the heat from the combustion is directly generated by the metal main body 12 or A secondary fire caused by the combustion of the solid fire extinguishing agent 36 without being transmitted to the cover 14 can be reliably prevented.

  Further, the combustion time when the solid fire extinguisher 36 is ignited is a short time of about 20 to 60 seconds, and a large amount of aerosol 60 is generated by this short time combustion, and is ejected from the ejection port 18 to the fire extinguishing target space. Fire extinguishing will be done.

  The limit switch 25 is turned on when the switch lever is pushed by the nut 46 due to the advancement of the stem 30 accompanying the pyrolysis operation, and outputs a transmission signal indicating that the smoke-extinguishing device 10 is activated to the outside.

  The transfer signal from the smoke-extinguishing device 10 of the present embodiment enables appropriate display and control corresponding to the monitoring area in which the smoke-extinguishing device 10 is incorporated. When the smoke prevention device 10 of the present embodiment is incorporated in, for example, a copying machine used as an office device, a fire occurs in the copying machine by using a sound output unit or a display unit of the copying machine by a transfer signal. A fire extinguishing operation is alarmed, and at the same time, the main power supply to the heater that caused the fire is automatically shut off.

  FIG. 6 is a cross-sectional view showing another embodiment of the smoke-extinguishing apparatus according to the present invention. In this embodiment, the solid fire extinguishing agent 36 side is mechanically moved by a heat-sensitive operation unit as an ignition mechanism of the fire extinguishing agent. It is characterized in that the ignition agent provided on the extinguishing agent is moved and brought into contact with the fixedly arranged rubbing agent so as to be ignited.

  In FIG. 6, the smoke-extinguishing device 10 includes a main body 12 and a cover 14, a partition plate 20 is disposed on the upper portion of the main body 12, and a rear portion from the storage portion 22 of the main body 12 to the flue portion 24 on the cover 14 side. A communication port 26 is formed.

  The main body 12 is provided with a heat-sensitive operation unit including a heat-sensitive plate 16, a cylindrical member 28, a stem 30, a low-temperature solder 32, a push nut 34, and a spring 35, which is the same as the embodiment of FIG.

  In this embodiment, a solid fire extinguisher 36 is fixed to the shaft end of the stem 30 taken out from the cylindrical member 28 to the rear. The solid fire extinguisher 36 is movably disposed on a support frame 62 fixed to the bottom side of the main body 12.

  An ignition agent 44 is provided on the solid fire extinguisher 36. A rubbing plate 40 bent in a substantially V shape is disposed on the lower surface of the partition plate 20 on the fixed side facing the ignition agent 44, and the rubbing agent 42 is disposed on the surface of the rubbing plate 40 facing the ignition agent 44. Is attached.

  Further, the limit switch 25 is turned on when the switch 30 is pushed by the switch operating member 27 attached to the stem 30 when the stem 30 moves forward in accordance with the pyrolysis operation, and a transfer signal is output to the outside. .

  FIG. 7 is an explanatory diagram showing the operation of the embodiment of FIG. In the installed state of FIG. 6, the heat sensitive plate 16 is heated by the fire at the place where the smoke-extinguishing device 10 such as equipment is installed, and melts when the temperature of the low-temperature solder 32 reaches 72 ° C. 30 is pushed and the thermal decomposition operation | movement which moves ahead, removing the thermal plate 16 is performed.

  Due to the movement of the stem 30 accompanying this thermal decomposition operation, the solid extinguishing agent 36 attached to the rear part thereof moves forward, and the ignition agent 44 provided on the solid extinguishing agent 36 is a rubbing agent for the sliding plate 40 that is fixedly arranged. The ignition powder 44 is ignited by moving while being in frictional contact with 42, and the solid fire extinguisher 36 is ignited and burned. When the solid fire extinguisher 36 burns, a large amount of aerosol 60 is generated and ejected from the ejection port 18 to the monitoring area.

  Although the temperature of the solid fire extinguisher 36 increases due to combustion, since the solid fire extinguisher 36 is provided on the main body 12 side via the support frame 62, heat from the combustion of the solid fire extinguisher 36 is not directly applied to the main body 12. The temperature of the cover 14 is kept low by a heat insulating action.

  FIG. 8 is an explanatory view showing a specific example of the flame ejection preventing member 64 arranged in the flue portion 24 of the embodiment of FIG. 2 and the embodiment of FIG. The flame ejection preventing member 64A shown in FIG. 7A suppresses flame ejection by arranging a plurality of small-diameter pipes 66 such as glass and porcelain. The flame ejection preventing member 64B shown in FIG. 7B suppresses flame ejection by separating and arranging two wire meshes. The flame ejection preventing member 64A shown in FIG. 7C suppresses flame ejection by arranging a plurality of balls 70 such as glass and porcelain. Further, the flame ejection preventing member 64D of FIG. 7D suppresses the ejection of flame by arranging a plurality of balls 70 such as glass and porcelain between the two metal nets 68.

  The monitoring area in which the smoke-extinguishing apparatus of the present embodiment is used includes a panel such as a control panel and a distribution panel, a server machine, a draft chamber for chemical experiments, an engine room, a copy machine, a printer, a cable duct, a motor, It can be various places such as a closed space or a sealed space such as a battery unit, a garbage truck, and a luggage compartment.

  FIG. 9 is a cross-sectional view showing another embodiment of the smoke-extinguishing apparatus according to the present invention, and is characterized in that a mechanism for igniting by heat generation of a chemical reaction is used as an ignition mechanism.

  In FIG. 9, the heat-sensitive operation unit is the same as that of the embodiment of FIG. 2, and an ignition mechanism by a chemical reaction is provided for the solid fire extinguisher 36 accommodated in the main body 10. An ignition agent storage portion 72 is formed as a storage hole on the surface of the solid fire extinguishing agent 36, an oxidant 74 is disposed on the conical bottom of the ignition agent storage portion 72, and a balloon in which an easily oxidizable substance 76 is sealed thereon. 78 is arranged to seal the hole opening. The oxidant 74 and the easily oxidizable substance 76 enclosed in the balloon 78 constitute an igniter.

  The balloon 78 is made of a thin film resin sheet, a rubber sheet, or the like, and is filled with an easily oxidizable substance 76 in a sealed state. When the thin film resin sheet is used, the balloon 78 has a substantially box shape. When the rubber sheet is made, the balloon 78 is inflated by filling with the easily oxidizable substance 76, and in this state, as shown in the figure, the balloon 78 is arranged in a deformed state by pressing from above.

  The balloon 78 disposed in the igniting agent storage portion 72 is pressed by the rubbing plate 40 supported at the rear end of the stem 30, thereby preventing it from coming off from the igniting agent storage portion 72.

  A slit-shaped guide groove 82 is formed behind the igniting agent storage portion 72 formed in the solid fire extinguishing agent 36, and a cutter 80 serving as a crushing tool fixed to the lower rear end of the rubbing plate 40 is disposed in the guide groove 82. is doing.

  FIG. 10 is a plan view of FIG. 9, and FIG. 11 is a plan view showing the surface of the solid fire extinguishing agent 36 by breaking the holding plate 50 and the stem 30. As is clear from FIGS. 10 and 11, a rectangular igniting agent storage portion 72 is opened, and a balloon 78 enclosing an easily oxidizable substance 76 is disposed therein. A guide groove 82 is formed in a slit shape behind the opening of the igniting agent storage portion 72, and the cutter 80 is positioned therein.

  FIG. 12 shows the solid fire extinguisher 36 extracted from FIG. 9, where FIG. 12 (A) is a front view and FIG. 12 (B) is a cross-sectional view. In FIG. 12, an ignition agent storage portion 72 formed on the solid fire extinguishing agent 36 is provided with a rectangular balloon storage portion 72a on the opening side, an oxidant storage portion 72b on the bottom side, and a cutter behind the balloon storage portion 72a. A guide groove 82 to be positioned is formed.

  The operation of the embodiment of FIG. 9 will be described as follows. When a fire occurs in the monitoring area where the smoke-extinguishing device 10 is installed and the low-temperature solder 32 is melted, the heat sensitive plate 16 is disassembled and the stem 30 is pushed out by the force of the spring 35 as shown in FIG. The movement of the stem 30 also moves the cutter 80 provided behind the stem 30, cuts the balloon 78 disposed in the igniting agent storage portion 72 with the cutter 80, and causes the easily oxidizable substance 76 to flow out, Contact with oxidizing agent 74.

  When the balloon 78 is cut by the movement of the cutter 80, the balloon 78 is cut in a stretched state while being pressed against the rubbing plate 40 that is moved by the stem 30, and can be reliably cut by the cutter 80.

  When the oxidant 74 and the easily oxidizable substance 76 as the igniting agent come into contact with each other on the surface of the solid fire extinguisher 36 in this way, the solid fire extinguisher 36 is ignited by generating heat due to a chemical reaction. The aerosol 60 is released by burning.

  The oxidant 74 that can be used as the igniter in the embodiment of FIG. 9 can be used without particular limitation as long as it is an exothermic oxidant that reacts with the easily oxidizable substance 76 and generates heat, but the solid fire extinguisher 36 is ignited. From the viewpoint of properties, it is preferable to use potassium permanganate. Moreover, it is preferable that potassium permanganate is a powder form, and it is preferable that a particle size is 10-150 micrometers. If a potassium permanganate having a particle size larger than 150 μm is used, the surface area of the potassium permanganate powder is small, so that the reaction with an easily oxidizable substance hardly occurs, and the ignitability may be impaired.

  In the igniting agent used in the embodiment of FIG. 9, the oxidizable substance 76 that can be used is a liquid organic oxidizable substance, and it is preferable to use a highly viscous substance.

  The igniting agent of the present embodiment is one of the purposes for quick ignition of the solid fire extinguishing agent, and the igniting agent can stay on the surface of the solid extinguishing agent, and the oxidant is present on the surface of the solid extinguishing agent. It is necessary that the solid fire extinguisher be able to generate heat locally by contact and be able to ignite and burn the solid fire extinguisher so that the aerosol fire extinguisher is quickly released. Therefore, for example, when a low-viscosity easily oxidizable substance such as ethylene glycol is used, it does not stay on the surface of the solid fire extinguisher but penetrates into the interior, and there is a possibility that quick and reliable ignition cannot be performed.

  In order to suppress penetration of easily oxidizable substances into the solid fire extinguisher, it is conceivable to suppress permeability by adding a binder to the solid fire extinguisher and molding it separately. The fire extinguishing substance per unit volume in the agent will be reduced, and a fire extinguishing agent having a low fire extinguishing effect will be provided. In addition, mixing a binder or the like in the solid fire extinguisher leads to a decrease in ignitability, which is not preferable.

  More specifically, as the highly viscous easily oxidizable substance that can be used in the present embodiment, it is preferable to use a liquid easily oxidizable substance having a viscosity at 25 ° C. in the range of 5 to 20 Pa · s. When a material with a viscosity of less than 5 Pa · s is used, the fluidity is so high that it easily penetrates into the solid fire extinguisher and cannot contact the oxidizer on the surface of the solid fire extinguisher, making ignition difficult. There is. In addition, when a product exceeding 20 Pa · s is used, the viscosity is too high, so that an easily oxidizable substance does not leak quickly from the enclosed container, and may not be mixed with the oxidant, resulting in non-ignition. .

  From the viewpoint of the above reasons and good exothermic reactivity with an oxidizing agent, glycerin is most preferable as an easily oxidizable substance that can be used in the present embodiment.

  FIG. 14 is a cross-sectional view showing another embodiment of the present invention that is ignited by a chemical reaction on the storage side of the solid fire extinguisher. In FIG. 14, an ignition agent storage portion 72 is formed as a storage hole on the surface of the solid fire extinguisher 36 stored in the main body 10, and the oxidizable substance 76 and the oxidant 72 are individually sealed in the ignition agent storage portion 72. A heavy balloon 84 is arranged.

  As shown in FIG. 15, the double balloon 84 is made of a thin film resin sheet or the like, and is divided into a first balloon 84a and a second balloon 84b by partitioning the inside with a partition 86, and an easily oxidizable substance is formed on the first balloon 84a. 76 is filled in a sealed state, and the second balloon 84b is filled with an oxide 74 in a sealed state.

  FIG. 16 shows the solid fire extinguisher 36 extracted from FIG. 14, in which FIG. 16 (A) is a front view and FIG. 16 (B) is a cross-sectional view. In FIG. 16, the ignition agent storage portion 72 formed in the solid fire extinguishing agent 36 is provided with a rectangular ignition agent storage portion 72, and a guide groove 82 for positioning the cutter is formed behind the ignition agent storage portion 72. 82 is a groove having a depth exceeding the igniting agent storage portion 72, and a bottom guide groove 88 passing through the bottom of the igniting agent storage portion 72 is formed in front of the guide groove 82.

  The operation of the embodiment of FIG. 16 will be described as follows. When a fire occurs in the monitoring area where the smoke-extinguishing device 10 is installed and the low-temperature solder 32 is melted, the heat sensitive plate 16 is disassembled and the stem 30 is pushed out by the force of the spring 35 as shown in FIG. . As the stem 30 moves, the cutter 80 provided behind the stem 30 also moves, and the double balloon 84 disposed in the igniting agent storage section 72 is cut by the cutter 80, and the oxidizable substance 76 and the enclosed oxidizable substance 76 are oxidized. The agent 74 is brought into contact with the surface of the solid fire extinguishing agent 36.

  When the balloon 78 is cut by the movement of the cutter 80, the balloon 78 is cut in a stretched state while being pressed against the rubbing plate 40 moved by the stem 30, and the tip of the cutter 80 moves along the bottom guide groove 88. Thus, the double balloon 84 can be cut reliably.

  When the oxidizing agent 74 and the easily oxidizable substance 76 exposed to the outside by cutting the double balloon 84 in this way come into contact with the surface of the solid fire extinguisher 36, the solid fire extinguisher generates heat due to a chemical reaction. The agent 36 is ignited, and the solid fire extinguishing agent 36 burns to release the aerosol 60.

  FIG. 17 is a schematic view showing another example of the smoke-extinguishing agent of the present invention ignited by a chemical reaction. In the example of FIG. 17, the solid fire extinguisher 36 having a cylindrical hole 36 a formed at the center is stored inside the container 100, the head portion 100 a is formed at the bottom of the container 100, and the oxidant storage portion 102 is formed in the head portion 100 a. A conical hole opened in the lower part is formed.

  The head body 104 is inserted into the head portion 100a from below, and is fixed by, for example, a high melting point solder 112 having a melting point of 100 ° C. A stem 106 having a spring receiver 106a formed thereon is inserted into the through hole in the head body 104. The lower end of the stem 106 is taken out to the outside, and the heat collecting plate 108 is placed there by a low melting point solder 110 having a melting point of 72 ° C., for example. The spring 114 is disposed between the upper end of the head body 104 and the spring receiver 106a to urge the stem 106 upward.

  A cutter 116 is attached to the tip end surface of a spring receiver 106 a formed on the upper portion of the stem 106. A balloon support portion 100b formed integrally with the container 100 is inserted into the cylindrical hole 36a of the solid fire extinguisher 36, and a balloon in which an easily oxidizing substance 76 is filled at the tip of the balloon support portion 100b relative to the cutter 116. 78 is attached. An oxidant 74 is stored in the oxidant storage part 102 inside the head part 100a.

  When the heat collecting plate 108 reaches a high temperature, the low melting point solder 120 is melted, and as shown in FIG. 18, the heat collecting plate 108 is detached from the stem 106 and falls off, and the stem 106 is pushed up by the force of the spring 114, and the cutter 116. As a result, the balloon 78 is broken, and the encapsulated easily oxidizable substance 76 is brought into contact with the oxidizing agent 78.

  The oxidant 74, which is an igniter, and the easily oxidizable substance 76 come into contact with each other to generate heat and ignite, whereby the solid extinguisher 36 is ignited and the solid extinguisher 36 burns. When the temperature of the head part 100a rises with this combustion and the high melting point solder 112 melts, as shown in FIG. 19, the head body 104, the stem 106 and the spring 114 fall from the head part 100a and open, A fire extinguisher is discharged as an injection port.

  19, instead of the balloon 78, a double balloon similar to that shown in FIG. 14 in which the oxidizing agent 74 and the oxidizable substance 76 are separately enclosed is provided, and the double balloon is broken by the cutter 116 of the stem 106 and enclosed. The oxidizable substance 76 and the oxidant 74 may be ignited by bringing them into contact with each other.

  FIG. 20 is a schematic view showing another example of the smoke-extinguishing agent of the present invention ignited by a chemical reaction. In the example of FIG. 20, the solid oxidizer 74 is stored at the bottom of the storage cylindrical hole 119 formed on the upper surface of the solid fire extinguisher 36 stored in the container 100, and then easily oxidized in a balloon 78 which is a storage container. A sex substance 76 is accommodated, and a stem 118 with a crushing claw 120 protruding on the lower side is disposed thereon.

  The stem 118 is integrally formed with a guide flange portion 122 having a spring accommodating chamber 121 and is slidably supported in the vertical direction within the container 100. The upper portion of the stem 118 is taken out of the container 100, and a heat collecting plate 124 is fixed thereto with a low melting point solder 128. Further, a spring 126 is incorporated in the spring storage chamber 121, and the stem 118 is attached to the container 100 with a solid fire extinguisher. It is energizing to the 36 side. In addition, a plurality of communication holes 130 are formed in the guide flange portion 122, and a plurality of injection ports 132 are formed on the upper end surface of the container 100 located on the outer side of the guide flange portion 122 so as to be displaced from the communication holes 130. Under normal conditions, the guide flange portion 122 and the inner surface of the container 100 are in contact with each other, thereby blocking the radiation port 132 and the communication hole 130 to prevent entry of dust and moisture from the outside.

  When the heat collecting plate 124 reaches a high temperature, the low melting point solder 128 is melted and detached from the stem 118 to release the fixed state, and the stem 118 is pushed downward by the force of the spring 126. By crushing the stem 118, the crushing claw 120 breaks the balloon 78 and brings the encapsulated easily oxidizable substance 76 into contact with the oxidizing agent 74.

  The solid fire extinguisher 36 is ignited by contact of the oxidant 74 and the easily oxidizable substance 76, which are igniters, on the surface of the solid fire extinguisher 36 to generate heat, and the solid fire extinguisher 36 burns to open the communication hole 130. The fire extinguishing agent is discharged to the outside through the injection port 132.

  As long as the balloon can be crushed by the crushing claw 120, the balloon 78 and the oxidizing agent 74 may be arranged upside down or arranged side by side.

  The smoke-extinguishing device of the present embodiment has a size suitable for a monitoring area such as a device or a board to be monitored, while ensuring a housing size capable of storing a necessary amount of fire-extinguishing agent. It is desirable to make it as small as possible. For example, the smoke-extinguishing apparatus according to the embodiment is sized to be placed on a palm having a length × width × height of about 5 cm × 5 cm × 10 cm.

  Further, as another embodiment of the smoke-extinguishing device according to the present invention, a limit switch for detecting the movement of the stem by the thermal decomposition operation of the thermal operation unit may be provided, and an operation signal may be transmitted to the outside as a transfer contact. .

  In the above embodiment, the aerosol is jetted forward from the jet outlet in front of the cover attached to the upper part of the main body. It is good also considering the direction of jetting as another direction.

  In the above embodiment, the main body 12 and the cover 14 constituting the casing are made of metal. However, if a heat insulating material is attached outside or inside the casing, it is not always necessary to be made of metal.

  Further, in the above embodiment, the heat sensitive part is composed of low-temperature solder, but this is not limiting, and the ignition mechanism may be activated by disassembling when a predetermined temperature such as a glass bulb is sensed. good. Alternatively, the low temperature solder 16 may be provided without using the low temperature solder 16, and when the shape memory alloy 35 reaches a predetermined temperature, the spring may be displaced in the same manner as the spring 35 and ignited.

  In addition, the heat sensitive plate 16 and the low temperature solder 32 are provided to protrude from the main body 12 to the outside. However, the heat sensitive plate 16 is not limited to this, and the heat sensitive plate 16 has a flush surface with the side surface of the main body 12 or a heat inlet. You may arrange | position to a heat sensitive part.

  Conversely, the configuration may be such that the cylindrical member 28 and the stem 30 are extended to the outside and the heat sensitive part is arranged at a position far from the main body 12 to sense heat.

  Further, the cylindrical member 28 and the stem 30 may be exchanged with an arbitrary length, and the distance between the attachment position of the main body and the attachment position of the heat sensitive part may be arbitrarily adjusted.

  Further, the stem 30 is in contact with and pressed against the heat sensitive plate 16. However, the present invention is not limited to this, and an intermediate material may be inserted between the stem 30 and the heat sensitive portion. For example, the cylindrical member 28 is extended forward, and one or a plurality of balls having a diameter slightly smaller than the inner diameter of the cylindrical member are connected between the heat-sensitive portion 16 and the stem 30 in the cylindrical member 28, so When the part is disassembled, the ball and the stem may move forward together to activate the ignition device. If it is this structure, between a main body and a heat sensitive part can be easily adjusted to arbitrary length.

  Further, if the cylindrical member at the place where the ball is placed is made of a flexible material, the installation position of the heat sensitive part and the main body can be adjusted more freely.

  Further, in the above embodiment, when the low temperature solder is disassembled, the stem 30 moves to the outside of the main body and ignites, but conversely, the stem more enters the main body. It may be configured to move and ignite. For example, in FIG. 2, the heat sensitive plate 16 and the push nut 34 are attached with low temperature solder, a spring 35 is inserted between the rear end of the cylindrical member and the nut 46, and an ignition agent 44 is provided behind the rubbing agent 42. May be.

  Further, instead of the spring 35, the stem may be driven by a repulsive force or a pulling force of a magnet.

  2 and 9, a plate for closing the communication port 26 is provided at the end of the stem 30 on the rubbing plate 40 side. Normally, the communication port 26 is closed, and the operation of the heat sensitive plate 16 causes the stem 30 to be closed. When the communication port 26 is opened when the vehicle moves, it is possible to prevent intrusion of dust and moisture at all times.

The present invention includes appropriate modifications that do not impair the objects and advantages thereof, and is not limited by the numerical values shown in the above-described embodiments.

Explanatory drawing which showed embodiment of the smoke-extinguishing apparatus by this invention Sectional drawing which showed the internal structure of embodiment of FIG. Explanatory drawing which showed the state which removed the cover of FIG. The top view which removed the partition plate of FIG. 3 and showed the internal structure Explanatory drawing which showed operation | movement of embodiment of FIG. Sectional drawing which showed other embodiment of the more smoke-extinguishing apparatus of this invention Explanatory drawing which showed operation | movement of embodiment of FIG. Explanatory drawing which showed the specific example of the flame ejection prevention member arrange | positioned in the flue part of embodiment of FIG. 2 and embodiment of FIG. Explanatory drawing which showed other embodiment of the smoke-extinguishing apparatus by this invention ignited by a chemical reaction Explanatory drawing which showed the plane of the smoke-extinguishing apparatus of FIG. Explanatory drawing which fractured | ruptured a part of smoke-extinguishing apparatus of FIG. 9, and showed the plane Explanatory drawing which took out and showed the solid digestive agent of FIG. Explanatory drawing which showed operation | movement of embodiment of FIG. Explanatory drawing which showed other embodiment of the smoke-extinguishing apparatus by this invention ignited by a chemical reaction Explanatory drawing which took out and showed the double balloon of FIG. Explanatory drawing which took out and showed the solid fire extinguisher of FIG. Explanatory drawing which showed other embodiment of the smoke-extinguishing apparatus by this invention ignited by a chemical reaction Explanatory drawing which showed operation | movement when the low melting-point solder melt | dissolved in embodiment of FIG. 18 is an explanatory view showing the operation when the high melting point solder is melted. Explanatory drawing which showed other embodiment of the smoke-extinguishing apparatus by this invention ignited by a chemical reaction

Explanation of symbols

10: Smoke extinguishing device 12: Main body 14: Cover 16: Thermal plate 18: Spout 20: Partition plate 22: Storage part 24: Flue part 25: Limit switch 26: Communication port 28: Cylindrical member 30: Stem 31: Connection Ring 32: Low-temperature solder 34: Push nut 35: Spring 36: Solid fire extinguishing agent 38: Heat insulating material 40: Rub plate 42: Rub agent 44: Igniter 46, 48: Nut 50: Press plate 52: Fixing member 60: Aerosol 62 : Support frames 64, 64A to 64D: Flame ejection preventing member 72: Ignition agent storage part 72a: Balloon storage part 72b: Oxidant storage part 74: Oxidant 76: Easily oxidizable substance 78: Balloon 80: Cutter 82: Guide groove 84: Double balloon 84a: First balloon 84b: Second balloon 88: Bottom guide groove

Claims (16)

A housing with a spout for ejecting fire-fighting aerosol;
A solid fire extinguisher that is housed in the housing and generates the fire-fighting aerosol by combustion; and
A thermosensitive operating part that monitors the temperature around the detection target and operates at a predetermined temperature;
An ignition mechanism for igniting and burning the solid fire extinguisher by a mechanical operation when the heat-sensitive operation unit is activated;
A smoke-extinguishing device characterized by comprising:
The smoke-extinguishing device according to claim 1,
The thermal operation part is
A thermosensitive part that monitors the temperature around the detection target and decomposes at a predetermined temperature;
A stem housed slidably between the heat sensitive part and the solid fire extinguisher in the housing;
An elastic member for urging the stem;
And when the heat sensitive part is thermally decomposed, the stem is moved by the elastic member,
The ignition mechanism is
A rubbing agent mounted at the position of the stem relative to the solid fire extinguishing agent;
An ignition agent provided on the solid extinguishing agent side relative to the rubbing agent;
The smoke-extinguishing apparatus is characterized in that the scrubbing agent is brought into frictional contact with the igniting agent by the movement of the stem when the heat-sensitive operation unit is disassembled and ignited.
The smoke-extinguishing device according to claim 1,
The thermal operation part is
A thermosensitive part that monitors the temperature around the detection target and decomposes at a predetermined temperature;
A stem slidably housed between the heat sensitive part and the solid fire extinguisher in the housing;
An elastic member for urging the stem;
And when the heat sensitive part is thermally decomposed, the stem is moved by the elastic member,
The ignition mechanism is
An ignition agent provided in the solid fire extinguishing agent;
A rubbing agent fixedly arranged on the housing side relative to the ignition agent;
A smoke-extinguishing apparatus, characterized in that the solid-extinguishing agent igniting agent is brought into frictional contact with the rubbing agent on the fixed side by the movement of the stem when the heat-sensitive operation unit is disassembled. .
The smoke-extinguishing apparatus according to claim 1, wherein the housing has a flue that guides smoke from the solid fire extinguishing agent to a jet outlet, and suppresses ejection of flame to the outside due to combustion of the solid fire extinguishing agent. A smoke-extinguishing device characterized by having a structure.
The smoke-extinguishing apparatus according to claim 4, wherein the flue structure is a flue structure that changes the direction of smoke in the middle.
The smoke-extinguishing apparatus according to claim 4, wherein the flue structure has a wire net or a filter disposed in the flue.
The smoke-extinguishing apparatus according to claim 1, further comprising a transfer output unit that detects mechanical driving of the ignition mechanism and outputs a driving signal to the outside.
2. The smoke-extinguishing apparatus according to claim 1, wherein the ignition mechanism includes an ignition agent in which at least an oxidizing agent and an easily oxidizable substance are separately arranged, and mechanical operation when the heat-sensitive operation unit is operated. A smoke-extinguishing apparatus configured to contact the oxidant and an easily oxidizable substance on the surface of the solid fire extinguisher and to ignite the solid fire extinguisher by heat generated by the contact.
9. The smoke-extinguishing apparatus according to claim 8, wherein the easily oxidizable substance is a highly viscous liquid easily oxidizable substance.
The smoke-extinguishing apparatus according to claim 8, wherein the easily oxidizable substance is glycerin.
9. The smoke-extinguishing apparatus according to claim 8, wherein the ignition mechanism includes a container enclosing the oxidizable substance, the oxidant is disposed in a storage hole formed in the solid fire extinguisher, and a hole opening side. The smoke-extinguishing apparatus, wherein the container is disposed and sealed, and the container is crushed by a crushing tool when the heat-sensitive operation unit is activated, and the oxidizable substance is brought into contact with the oxidant.
9. The smoke-extinguishing apparatus according to claim 8, wherein the ignition mechanism includes a container in which the oxidizing agent and the easily oxidizable substance are individually sealed, and the container is disposed in a storage hole formed in the solid fire extinguishing agent. And when the said heat-sensitive action | operation part act | operates, the said container is crushed with a crushing tool and it makes the said easily oxidizable substance and the said oxidizing agent contact, The smoke-extinguishing apparatus characterized by the above-mentioned.
The smoke-extinguishing apparatus according to claim 11 or 12, wherein the crushing tool is a cutter, and the container is cut and crushed by the movement of the cutter when the heat-sensitive operation unit is activated. Fire extinguisher.
9. The smoke-extinguishing apparatus according to claim 8, wherein the ignition mechanism includes a container in which the easily oxidizable substance is sealed, and the container is disposed and sealed in the vicinity of the solid fire extinguishing agent. Is disposed in the vicinity of the heat-sensitive operation unit, and when the heat-sensitive operation unit is operated, the container is crushed by a crushing tool so that the oxidizable substance is brought into contact with the oxidant.
15. The smoke-extinguishing apparatus according to claim 14, wherein when the heat-sensitive operation part is operated, the heat-sensitive operation part and the crushing tool are released from the casing to open the jet port. apparatus.
  The smoke-extinguishing apparatus according to claim 1, wherein the solid fire extinguisher is sealed in the housing in a normal monitoring state, and the jet outlet and the solid fire extinguisher storage section when the heat sensitive operation section is activated. A smoke-extinguishing device characterized by communicating with

Images