JP2013048927A - Smoking fire extinguisher - Google Patents

Abstract

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.SOLUTION: A solid extinguisher 26 which generates extinguishing aerosol by combustion is housed in a case body 12 provided with a jetting port 14, a spring displacement to a memorized shape when a shape memory spring 28-1 disposed at a fire detecting position of a thermosensitive operation part 16 reaches a fire temperature is transmitted to the case body 12 through a plurality of resin balls 30 arranged in a cylindrical body, a balloon 78 is broken by a breaking device 80 of the end of a stem 32-2, the solid extinguisher 26 is ignited and burned by the heat generation of a chemical reaction by that an included easy oxidizing material 76 is made to contact with an oxidizing agent 74, and the extinguishing aerosol is jetted from the jetting port 14 and a fire is extinguished.

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 suppressing the combustion reaction.

JP 2005-503853 A JP-A-6-269513 US Patent Application Publication No. 2007/0235200 JP 2000-167080 A JP-A-8-61307 Special table 2007-512913 International Publication No. 2007/016705

  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. 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;
An ignition mechanism for igniting and burning a solid fire extinguisher;
It has a length according to the distance from the housing to the fire detection position, and when the shape memory spring arranged at the fire detection position reaches a predetermined temperature, the displacement to the memory shape is transmitted to the housing side to A thermal actuator to be activated,
With
The ignition mechanism includes an igniter in which at least an oxidant and an easily oxidizable substance are separately arranged, and the oxidant and the easily oxidizable substance are separated from each other by the 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.

  The ignition mechanism includes a container in which an easily oxidizable substance is enclosed, and an oxidant is disposed at the back of the storage hole formed in the solid fire extinguisher and a container is disposed on the hole opening side to be closed, and the heat-sensitive operation unit. When the is activated, the container is crushed with a crushing tool and the oxidizable substance is brought into contact with the oxidizing agent.

  In addition, the ignition mechanism includes a container in which an easily oxidizable substance is enclosed, and an oxidant is disposed at the deepest part of the storage hole formed in the fire extinguisher composition, and then the container is disposed, and the crushing tool is disposed on the hole opening side. When the heat-sensitive operation part is actuated, the front plunger is pushed in and the container is crushed by the crushing tool so that the oxidizable substance is brought into contact with the oxidant.

  Further, the ignition mechanism includes an injector in which a cylinder is filled with an easily oxidizable substance discharged by the movement of the piston, and the injector is disposed in the hole opening in a state where the oxidant is disposed at the back of the storage hole formed in the fire extinguisher composition. When the heat-sensitive operation part is activated, the easily oxidizable substance is discharged by pressing the piston of the injector and brought into contact with the oxidant.

Further, the ignition mechanism includes a container in which an oxidant and an easily oxidizable substance are individually enclosed, and the container is disposed in a storage hole formed in the fire extinguisher composition, and the container is crushed by the crushing tool when the heat-sensitive operation unit is activated. Is crushed and brought into contact with an easily oxidizable substance and an oxidizing agent.

  According to the present invention, the solid fire extinguisher is ignited by the operation of the ignition mechanism by the displacement of the shape memory spring to the memory shape when the fire detection temperature is reached or the opening displacement of the heat-sensitive latched compression spring. A fire-extinguishing aerosol can be generated by combustion, no electricity is required, so there is no need for an uninterruptible power supply, and it can be used even in places where an uninterruptible power supply cannot be prepared. Can do.

  In addition, the heat-sensitive operating part of the present invention arranges a shape memory spring or a heat-sensitive latched compression spring in a monitoring area that detects a fire away from the installation position of the casing that injects aerosol by burning solid extinguisher, and adjusts to the fire temperature. The displacement to the memory spring shape when it reaches or the opening displacement of the compression spring can be transmitted to the housing to ignite the solid fire extinguisher. Can be changed as necessary, and the arrangement according to the monitoring area of the device to be installed and the location can be easily performed.

In addition, when the heat-sensitive operation unit is connected to the housing, it is only necessary to provide an ignition mechanism and a solid fire extinguisher in the same housing, so the configuration is simple and the size and cost can be reduced. Incorporated directly into office equipment, home appliances, control panels, etc., where there is a risk of accidents, it is possible to respond appropriately even in the event of an equipment fire, and the safety of applicable equipment can be greatly improved.

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 operation | movement of embodiment of FIG. Sectional drawing which showed other embodiment of this invention which provided the single cylinder in the heat sensitive action | operation part. Sectional drawing which showed other embodiment of this invention which provided three cylinders in the heat sensitive action | operation part Sectional drawing which showed other embodiment of this invention provided with the ignition mechanism which rotates and moves the rubbing agent side and ignites Explanatory drawing which took out and showed the ignition mechanism of FIG. Explanatory drawing which showed other embodiment of this invention which used the flexible tube for the heat sensitive action | operation part. Explanatory drawing which showed other embodiment of this invention which latched the compression spring in the heat sensitive action | operation part. Explanatory drawing which showed other embodiment of this invention which latched the compression spring in the heat sensitive action | operation part. Explanatory drawing which showed the specific example of the flame ejection prevention member arrange | positioned in the flue part of this embodiment 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 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 showed other embodiment of the smoke-extinguishing apparatus by this invention ignited by a chemical reaction 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 showed other embodiment of the smoke-extinguishing apparatus by this invention ignited by a chemical reaction Explanatory drawing which took out and showed the balloon of FIG.

  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 / extinguishing device 10 of the present embodiment includes a housing 12 and a heat-sensitive operation unit 16 attached to the front of the housing 12.

  A solid fire extinguisher is housed inside the housing 12 and burns by ignition when a fire is detected, and fire-extinguishing aerosol is ejected from the jet outlet 14 to the monitoring area where the smoke-extinguishing device 10 is installed. ing.

  In this embodiment, the thermosensitive operating unit 16 mounted in front of the housing 12 is configured by connecting two cylindrical bodies, that is, the distal end cylindrical body 18 and the base cylindrical body 22, and is manually activated at the distal end. A lever 20 is provided.

  The tip cylinder 18 and the base cylinder 22 contain a shape memory spring that reverses and extends when reaching a predetermined fire temperature, for example, 72 ° C., as will be apparent from the following description. The spring displacement due to the reversal operation at the time of detecting the fire of the memory spring is mechanically transmitted to the housing 12 side, and the ignition mechanism housed in the housing 12 is operated to ignite the solid fire extinguisher. .

  FIG. 2 is a cross-sectional view showing the internal structure of the embodiment of FIG. A fire extinguishing agent storage unit 24 is provided inside the housing 12, and a solid fire extinguishing agent 26 is stored in the fire extinguishing agent storage unit 24. The extinguishing agent storage unit 24 has a box shape corresponding to the outer shape of the housing 12, and a through hole is formed at the center of the stored solid extinguishing agent 26.

  The solid fire extinguisher 26 used in the present embodiment generates a fire extinguishing aerosol, that is, ultrafine particles of about 2 μm by combustion, and jets this to the outside to extinguish the fire. The aerosol generated by the combustion of the solid fire extinguishing agent 26 contains, for example, carbonates or phosphates such as potassium chloride, sodium chloride, sodium carbonate, sodium sulfate or a mixture thereof, and in addition, carbon dioxide, water vapor, nitrogen, etc. Is included.

  This aerosol fills the monitoring area where the fire broke out, and extinguishes the fire by suppressing and extinguishing the center of combustion 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.

  A flue 45 is formed in the housing 12 containing the solid fire extinguishing agent 26 from the back to the front outlet 14 through the periphery thereof. In this way, the formation of the flue 45 that wraps forward from behind is formed by bending the flue 45 so that the solid fire extinguishing agent 26 and the jet outlet 14 are separated from each other, and the direction in which the flame is emitted and the jet outlet are not in the linear direction. With this configuration, the flame caused by the combustion of the solid fire extinguisher 26 is prevented from blowing out to the outside.

  Further, in order to more effectively prevent the flame from being ejected by the solid fire extinguishing agent 26, a flame ejection preventing member 64 that passes only an aerosol such as a wire mesh is disposed in the middle of the flue portion 45.

  A shape memory spring 28-1 is provided at the inner distal end of the distal end cylindrical body 18 of the thermosensitive operating unit 16 provided in front of the housing 12. The shape memory spring 28-1 is incorporated in a contracted state, and when it reaches a predetermined fire temperature, for example, 72 ° C., the memory spring 28 is inverted to the extended state. Following the shape memory spring 28-1, in this embodiment, three resin balls 30 are provided. A metal ball may be used instead of the resin ball 30.

  The resin ball 30 has a size that allows the resin ball 30 to freely roll in the tip cylindrical body 18. Following the resin ball 30, a stem 32 is provided slidably with respect to the partition wall 34. A bias spring 36-1 is disposed between the front portion of the stem 32 and the partition wall 34.

  As for the base cylindrical body 22, following the stem 32-1 slidably provided on the partition wall 34-1 from the distal end side, the shape memory spring 28-2 incorporated on the right side of the partition wall 34-1, and the shape memory spring 28-2. Three resin balls 30, a stem 32-2 slidably provided on the partition 34-2, and a bias spring 36-2 incorporated on the left side of the partition 34-2 and the stem 32-2. .

  The shape memory spring 28-2 is incorporated in a contracted state, similar to the shape memory spring 28-1 of the distal end cylindrical body 18, and performs a reversal operation that extends into a memory shape when the fire detection temperature reaches 72 ° C.

  The rubbing agent 38 is provided on the right side of the stem 32-2 provided at the base portion of the base cylindrical body 22, and the first magnet 42 is attached to the end portion. The end portion of the stem 32-2 is positioned so as to be freely inserted into a through hole provided in the solid fire extinguisher 26, and an ignition powder 40 is attached to the inner peripheral portion on the entrance side of the through hole.

  A support portion protruding from the rear end side of the housing 12 is positioned in the through hole of the solid fire extinguisher 26, and a second magnet 44 is provided at the front end of the support portion so as to be opposed to the first magnet 42 of the stem 32-2. Yes.

  The rubbing agent 38 provided on the stem 32-2 and the ignition agent 40 provided on the solid extinguishing agent 26 constitute an ignition mechanism in the present embodiment, and the shape memory spring 28-1 provided on the heat-sensitive operating unit 16 fires. When the fire detection temperature reaches, for example, 72 ° C. and reverses to the spring extension state, the spring displacement due to the reversal of the shape memory spring 28-1 is transmitted to the stem 32-2 of the base cylindrical body 22 via the resin ball 30. Then, the rubbing agent 38 provided on the tip side moves so as to be inserted into the through hole provided with the ignition agent 40, and the rubbing agent 38 is brought into frictional contact with the ignition agent 40. The explosive 40 is ignited and the solid fire extinguisher 26 is ignited.

  The first magnet 42 and the second magnet 44 are provided to further accelerate the movement of the stem 32-2 due to the spring displacement caused by the reversal when the fire temperature of the shape memory spring 28-1 is reached. This is because there is no problem in that the reversing operation of the memory shape spring 28-1 is performed rapidly in a short time when the temperature rise due to the fire is rapid, but when the rate of temperature rise due to the fire is slow, the shape memory The reversing operation of the spring 28-1 may be performed relatively slowly.

  In such a case, the stem 32-2 also moves slowly in response to the slow movement of the shape memory spring 28-1, and the movement of the frictional contact of the rubbing agent 38 with the ignition agent 40 becomes slow, and there is a possibility that ignition cannot be performed.

  Therefore, by providing the first magnet 42 and the second magnet 44, when the stem 32-2 starts to move in the right direction and the distance between the magnets is reduced, the magnetic force is increased, and the stem 32-2 is rapidly moved by magnetic attraction, The frictional contact of the rubbing agent 38 with the igniting agent 40 is rapidly performed to ensure ignition.

  Further, a valve seal 35 is provided on the left end surface of the large-diameter portion of the stem 32-2, and the stem 32-2 is moved to the right side by reversing the shape memory spring 28-1 of the heat-sensitive actuating portion 16, thereby solid extinguishing agent. When the valve 26 is ignited, the valve seal 35 is pressed against the end face of the partition wall 34-2 to prevent the aerosol generated by the combustion of the solid fire extinguishing agent 26 from being ejected to the side where the resin balls 30 are incorporated. It has a valve structure that closes.

  Bias springs 36-1 and 36-2 provided on the distal end cylinder 18 and the base cylinder 22 prevent the movement of the stem 32-2 due to the weight of the resin ball 30. When the smoke-extinguishing apparatus 10 according to the present embodiment is installed upward or obliquely upward, the stem 32-2 moves due to the weight of the resin ball 30, and this movement is prevented by the bias springs 36-1 and 36-2. To do.

  As the bias springs 36-1 and 36-2 used in the present embodiment, those having a weak spring force of about a fraction of the spring force caused by the reversal of the shape memory spring 28-1 are used. However, when the number of connecting cylinders constituting the heat-sensitive operation unit 16 provided in the housing 12 increases, the number of bias springs increases accordingly, and the bias springs are arranged in series, so that the springs of the shape memory springs There is a risk of surpassing power.

  In order to suppress an increase in spring force due to such a negative bias spring arrangement, a stem by the resin ball 30 is provided only by providing the bias spring 36-2 only for the stem 32-2 of the base cylindrical body 22 as the final stage. The movement of 32-2 may be blocked.

  Further, in order to control the movement of the stem 32-2 by the resin ball 30, it can be eliminated by installing it in the monitoring area so that the housing 12 side is raised with respect to the heat-sensitive operation unit 16.

  FIG. 3 is an explanatory diagram showing the operation of the embodiment of FIG. In FIG. 3, when a fire occurs in the monitoring area where the smoke-extinguishing device 10 of the present embodiment is installed, and the thermal air flow caused by the fire is received by the heat-sensitive operation unit 16, the tip cylinder 18 and the base cylinder 22 are accommodated. The shape memory springs 28-1 and 28-2 are reversed upon reaching the fire detection temperature of 72 ° C. and extend into a memory shape as shown in the figure.

  Due to the spring displacement caused by the reversal of the shape memory springs 28-1 and 28-2, the resin ball 30 is pushed and moved toward the housing 12, and the stem 32-2 disposed on the housing 12 side moves rapidly. Then, the rubbing agent 38 provided on the tip side of the stem 32-2 suddenly rubs against the ignition agent 40 provided on the solid extinguishing agent 26 side to ignite, and when the match occurs, the solid extinguishing agent 26 is generated by the same ignition action. Ignite and burn.

  When the stem 32-2 is moved by the reversal of the shape memory springs 28-1 and 28-2 at this time, the valve seal 35 of the stem 32 is pressed against the partition wall 34-2 and the passage toward the resin ball 30 is closed. And

  The aerosol generated by the combustion of the solid fire extinguisher 26 is ejected to the monitoring area from the jet port 14 opened forward through the flue 45 behind, and the monitoring area is filled with the aerosol 100 in a short time to extinguish the fire.

  Here, the solid fire extinguisher 26 used in the present embodiment has an amount in the range of, for example, 80 grams to 200 grams as a weight necessary to extinguish a monitoring area of 1 cubic meter by aerosol.

  Moreover, the time which fills the monitoring area | region with the aerosol 100 by igniting and burning the solid fire extinguisher 26 becomes a short time of about 20 to 60 seconds. The aerosol 100 filled in the monitoring area suppresses fire extinguishing by fulfilling the action of extinguishing the fire center of combustion in the combustion place.

  On the other hand, when it is desired to activate the smoke-extinguishing / extinguishing device 10 by manual operation, the manual activation lever 20 protruding from the distal end cylinder 18 is pushed in, and the movement of the manual activation lever 20 is transmitted to the housing 12 via the resin ball 30. The solid fire extinguisher 26 is ignited, and aerosol is ejected by combustion.

  In order to increase the heat sensitivity of the shape memory spring 28, holes may be formed around the distal end cylinder 18 and the base cylinder 22 where the shape memory spring is disposed to improve the inflow characteristics of the hot air flow. good.

  FIG. 4 is a cross-sectional view showing another embodiment of the present invention in which a single cylinder is provided in the heat-sensitive operating part. In FIG. 4, the smoke-extinguishing / extinguishing apparatus 10 according to this embodiment is provided with only the tip cylinder 18 in front of the housing 12. A solid fire extinguisher 26 is accommodated in the housing 12.

  As in the embodiment of FIG. 1, the distal end cylinder 18 includes a stem 32 slidably provided on the shape memory spring 28-1, three resin balls 30, and a partition wall 34 from the distal end side inside the cylinder, and the stem 32 and the partition wall. Further, a bias spring 36 disposed between the valve 34 and a valve seal 35 for closing the through hole of the partition wall 34 are provided.

  A rubbing agent 38 is provided on the casing 12 side of the stem 32, and an ignition agent 40 is provided correspondingly to the inner periphery of the entrance side of the through hole of the solid extinguishing agent 26 to constitute an ignition mechanism. Further, a first magnet 42 is provided on the right side of the stem 32, and a second magnet 44 is provided on the housing 12 side so as to magnetically bias the movement of the stem 32.

  Thus, when only the tip cylinder 18 is provided in the housing 12, the tip cylinder 18 is the same as the tip cylinder 18 of FIG. 2 with respect to the shape memory spring 28-1 and the resin ball 30, and the manual activation lever. As for the structure, the stem 32 on the housing 12 side has the structure of the base cylindrical body 22 in FIG. 2 as it is. It can be said that the smoke-extinguishing / extinguishing apparatus 10 including only the distal end cylindrical body 18 illustrated in FIG. 4 is the minimum size in the present embodiment.

  FIG. 5 is a cross-sectional view showing another embodiment of the present embodiment in which three cylinders are provided in the heat-sensitive operation unit. The smoke-extinguishing / extinguishing apparatus 10 in the embodiment of FIG. 5 is provided with a heat-sensitive operation unit 16 in which a base cylinder 22, an intermediate cylinder 46, and a tip cylinder 18 are connected in front of a housing 12.

  The configurations of the distal end cylindrical body 18 and the base cylindrical body 22 and the casing 12 are the same as those in the embodiment of FIG. 1, and an intermediate cylindrical body 46 is newly provided. The intermediate cylinder 46 is provided with a stem 32-11 slidably provided on the partition wall 34-11 from the front end side, three resin balls 30, a stem 32-12 provided on the partition wall 34-12, and a bias spring 36. The base cylinder 22 and the tip cylinder 18 are connected to each other in the front-rear direction.

  Any number of intermediate cylinders 46 can be provided as necessary, and thus the length of the heat-sensitive operation unit 16 provided in the housing 12 can be selected according to the state of the monitoring area. it can.

  FIG. 6 is a cross-sectional view showing another embodiment provided with an ignition mechanism that rotates and ignites while moving the rubbing agent side. In FIG. 6, a stem 32-2 is slidably provided with respect to the partition wall 34-2 in the base cylindrical body 22 of the heat-sensitive operation unit attached to the housing 12, and a resin spring 30 side is provided by a bias spring 36-2. Is being energized.

  A rubbing agent 38 is provided on the outer periphery on the right side of the stem 32-2, and an ignition agent 40 is provided on the inner peripheral portion of the through-hole opening of the solid fire extinguishing agent 26 housed in the housing 12 correspondingly. A first magnet 48 is attached to an end portion of the stem 32-2 on the housing side, and a second magnet 50 is attached to the housing 12 side opposite thereto.

  FIG. 7 shows the ignition mechanism of FIG. 6. The first magnet 48 attached to the end of the stem 32-2 and the second magnet 50 on the housing side opposite to the first magnet 48 have a tapered surface 48a and a tapered surface, respectively. I have 50a.

  The first magnet 48 having the tapered surface 48a has the illustrated magnetic pole, and the magnetic pole is disposed on the tapered surface 50a of the second magnet 50 fixed to the housing side in the opposite direction. For this reason, when the shape memory spring provided in the heat sensitive operation part is reversed upon reaching the fire temperature and the stem 32-2 moves in the axial direction as indicated by the arrow through the resin ball 30, the first magnet 48 is fixed. The magnetic poles of the tapered surfaces 48a and 50a of the first magnet 48 and the second magnet 50 are opposite to each other with the same polarity, and are opposed to each other with opposite polarity due to magnetic attraction. The first magnet 48 rotates.

  Along with the rotation of the first magnet 48, the rubbing agent 38 provided on the outer periphery of the tip end of the stem 32-2 also rotates, and the rubbing agent 38 against the ignition agent 40 provided on the inner periphery of the through hole of the solid fire extinguishing agent 26. Moves in the axial direction and makes frictional contact while rotating, so that the solid fire extinguisher 26 can be reliably ignited.

  FIG. 8 is an explanatory view showing another embodiment in which a flexible tube is used for the heat-sensitive operation part. In FIG. 8, the smoke-extinguishing / extinguishing apparatus 10 of this embodiment has a flexible tube 54 fitted into the insertion port 52 of the housing 12 as the heat-sensitive operation unit 16 provided in front of the housing 12.

  The flexible tube 54 is provided with a heat sensitive plate 56 on the distal end side, followed by a shape memory spring 28, and a plurality of resin balls 30 are slidably incorporated behind the flexible tube 54 up to the housing 12 side. Inside the insertion port 52 formed in front of the housing 12, a stem 32 is slidably provided with respect to the partition wall 34, and a rubbing agent 38 is provided on the outer periphery on the right side of the stem 32, corresponding to the rubbing agent 38. An ignition agent 40 is provided on the inner periphery of the through hole of the solid fire extinguishing agent 26.

  A first magnet 42 is provided at the right end of the stem 35, and a second magnet 44 is provided on the casing 12 that is on the fixed side relative to the first magnet 42.

  A bias spring 36 is provided on the resin ball 30 side of the stem 32 to support the weight of the resin ball 30 provided on the flexible tube 54 so that the stem 32 does not move, and a valve seal 35 is further provided. The through hole of the partition wall 34 is closed by the movement of the stem 32 when the shape memory spring 28 is reversed.

  In the embodiment of FIG. 8, by attaching the heat-sensitive operation unit 16 using the flexible tube 54 to the housing 12, the fire detection in the monitoring area where the smoke-extinguishing device of this embodiment is installed is detected. The heat-sensitive plate 56 at the tip of the heat-sensitive operating unit 16 can be freely arranged at any required position.

  In addition, the length of the flexible tube 54 constituting the heat-sensitive operation unit 16 is prepared with an appropriate length depending on the relationship between the installation position of the housing 12 in the monitoring area and the fire detection position with respect to this. Can be used.

  A manual activation lever provided at the tip of FIG. 2 may be provided on the heat sensitive plate side of the embodiment of FIG.

  FIG. 9 is an explanatory view showing another embodiment of the present invention in which a compression spring is arranged in the heat-sensitive operation part. In FIG. 9, the smoke-extinguishing / extinguishing apparatus 10 according to the present embodiment has a heat-sensitive operation unit including a heat-sensitive spring mechanism disposed on a front-end cylinder 18 disposed via a base cylinder 22 in front of a housing 12.

  A compression spring 62 is incorporated at the inner distal end of the distal end cylinder 18 by a retainer 58 fixed by a low-temperature solder 60. Except for the structure in which the compression spring 62 is held in a latched state by the retainer 58 fixed by the low-temperature solder 60, the shape memory springs 28-1 and 28-2 in the embodiment of FIG.

  In the embodiment shown in FIG. 9, when the low-temperature solder 60 of the distal end cylinder 18 receives heat from a fire in a state where it is installed in the monitoring area and reaches, for example, a fire detection temperature of 72 ° C., it is melted and compressed by the retainer 58. The latch 62 is released, and the compression spring 62 extends, causing a spring displacement that pushes the resin ball 30 toward the housing 12.

  This spring displacement is transmitted to the stem 32-2 via the resin ball 30 of the base cylindrical body 22, ignites by bringing the rubbing agent 38 into frictional contact with the ignition agent 40, and ignites and burns the solid extinguishing agent 26. Then, the aerosol is ejected from the ejection port 14 to the monitoring area to extinguish the fire.

  Even in the embodiment of FIG. 9, by changing the number of cylinders constituting the heat-sensitive operation unit 16 as necessary, for example, the same as in FIG. By providing the intermediate cylinder 46 shown, the length of the heat-sensitive operation part can be set to an appropriate length as required.

  FIG. 10 (A) is an explanatory view showing another embodiment of the present invention in which a compression spring is arranged in the heat-sensitive operation part, and shows a portion of the leading cylinder. In FIG. 10, the smoke-extinguishing / extinguishing apparatus 10 of the present embodiment has a plunger 21 whose rear end is in contact with the resin ball 30 and whose front end protrudes to the outside inside the front end cylindrical body 18 disposed in front of the housing 12. The heat sensitive plate 61 is fixed to the tip of the plunger 21 protruding to the outside by the low-temperature solder 60, thereby holding the compression spring 62 in a compressed state. The housing 12 side is the same as in FIG.

  In the embodiment shown in FIG. 10A, when the low-temperature solder 60 of the distal end cylinder 18 receives heat from a fire in a state where it is installed in the monitoring area and reaches a fire detection temperature of 72 ° C., for example, the plunger 21 The fixing to the heat sensitive plate 61 is released as shown in FIG. 10B, and the compression spring 62 extends to cause a spring displacement that pushes the resin ball 30 toward the housing 12 side.

  This spring displacement is transmitted to the stem 32-2 via the resin ball 30 of the same base cylindrical body 22 as shown in FIG. 9, and ignites by bringing the rubbing agent 38 into frictional contact with the ignition agent 40, thereby causing the solid extinguishing agent 26 to ignite. By igniting and burning, the aerosol is ejected from the ejection port 14 to the monitoring area and extinguished.

  FIG. 11 is an explanatory view showing a specific example of the flame ejection preventing member 64 arranged in the flue portion 45 of the above embodiment. The flame ejection preventing member 64A in FIG. 11A 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. 11B suppresses flame ejection by separating and arranging two wire meshes. The flame ejection preventing member 64A shown in FIG. 11 (C) suppresses flame ejection by arranging a plurality of balls 70 such as glass and porcelain. Further, the flame ejection preventing member 64D shown in FIG. 11D suppresses the ejection of flame by arranging a plurality of balls 70 such as glass and porcelain between two metal meshes 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. 12 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 generated by a chemical reaction is used as an ignition mechanism.

  In FIG. 12, the heat sensitive operation part 16 is the same as the embodiment of FIG. 2, and an ignition mechanism by chemical reaction is provided on the housing 12 side. A storage cylindrical hole 72 is formed in the surface of the solid fire extinguisher 26 stored in the housing 12 on the heat sensitive operation part 16 side, and an oxidant 74 as an ignition agent and a balloon 78 as a storage container are enclosed therein. The oxidizing substance 76 is accommodated.

  The balloon 78 encapsulating the easily oxidizable substance 76 is made of a plastic thin film sheet or rubber, and the opening side is sealed by being pushed into the storage cylindrical hole 72 so that the housing 12 is installed in any direction. However, the oxidizing agent 74 is prevented from coming out of the storage cylindrical hole 72.

  On the right side of the balloon 78 pushed into the storage cylindrical hole 72, a balloon-breaking crushing tool 80 having a pointed tip of a stem 32-2 provided in the heat-sensitive operation unit 16 is positioned.

  When a fire occurs in the monitoring area where the smoke-extinguishing device 10 is installed and the shape memory springs 28-1 and 28-2 extend to the memory shape, the stem 32-2 moves to the right side via the resin ball 30, The balloon 78 is broken by the crushing tool 80 at the tip, and the easily oxidizable substance 76 enclosed is brought into contact with the oxidizing agent 74.

  When the easily oxidizable substance 76 comes into contact with the oxidant 74, which is an igniter, the solid fire extinguisher 26 is ignited by generating heat, and as shown in FIG. The aerosol 100 is ejected from the ejection port 14 to the monitoring area.

  Here, when the balloon 78 is defeated by the crushing tool 80, when the direction of the storage cylindrical hole 72 is lateral or downward as shown in the figure, the easily oxidizable substance 76 leaks to the outside and the contact with the oxidant 74 is insufficient. Since there is a possibility, a seal such as a thin film resin sheet is affixed to the opening of the storage cylindrical hole 72 and sealed, and the balloon 78 is broken by breaking the seal with the crushing tool 80. Encapsulate the oxidant 76 to ensure contact with the oxidant 74.

  The oxidant 74 that can be used as an igniter in the embodiment of FIG. 12 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 26 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. When a potassium permanganate having a particle size larger than 150 μm is used, the specific 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. 12, 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 or the like to the solid fire extinguisher separately, but such means can be used as a fire extinguisher. This will reduce the amount of fire extinguishing material per unit volume in the composition, giving a fire extinguishing agent with a low fire extinguishing effect. Moreover, mixing a binder or the like in the fire extinguisher composition also 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 material exceeding 20 Pa · s is used, since its viscosity is too high, the easily oxidizable substance does not leak out from the enclosed container quickly, and may not be mixed with the oxidizing agent, 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 housing side. In FIG. 14, an oxidant 74 is stored in the bottom of a storage cylindrical hole 72 formed in the solid fire extinguisher 26 stored in the housing 12, and subsequently an oxidizable substance 76 enclosed in a balloon 78 is stored, and on the outside thereof. A plunger 84 with a crushing claw 86 protruding inside is slidably disposed. With respect to the plunger 84, the pressing part 88 formed in the front-end | tip of the stem 32-2 provided in the heat sensitive action | operation part 16 is located.

  When a fire occurs in the monitoring area where the smoke-extinguishing device 10 is installed and the shape memory springs 28-1 and 28-2 extend to the memory shape, the stem 32-2 moves to the right side via the resin ball 30, The plunger 84 is pushed in by the pressing portion 88 at the tip, the balloon 78 is broken by the crushing claw 86, and the encapsulated easily oxidizable substance 76 is brought into contact with the oxidizing agent 74.

  The solid fire extinguisher 26 is ignited when the oxidizing agent 74 and the easily oxidizable substance 76 which are ignition agents contact on the surface of the solid fire extinguishing agent 26 to generate heat, and the solid fire extinguishing agent 26 burns to release the aerosol. Is done.

  FIG. 15 is a cross-sectional view showing another embodiment of the present invention ignited by a chemical reaction on the housing side. In FIG. 15, an oxidizer 74 is stored in the bottom of a storage cylindrical hole 72 formed in the solid fire extinguisher 26 stored in the housing 12, and then an injector 90 filled with an easily oxidizable substance 76 is disposed. In the injector 90, a piston 94 is slidably provided in a cylinder 92 having an injection hole 96 at the tip, and an easily oxidizable substance 76 is filled in the cylinder 92.

  A stopper flange 98 is formed on the outer side of the cylinder 92, and positioning is performed when the injector 90 is set in the storage cylindrical hole 72. With respect to the piston 94 of the injector 90, the pressing part 88 formed at the tip of the stem 32-2 provided in the heat sensitive operation part 16 is positioned.

  The injection hole 96 of the injector 90 does not leak even if it is left open in a state where it is filled with the easily oxidizable substance 76. However, if necessary, a lid such as a vinyl sheet is attached to the opening of the injection hole 96. You can leave it.

  When a fire occurs in the monitoring area where the smoke-extinguishing device 10 is installed and the shape memory springs 28-1 and 28-2 extend to the memory shape, the stem 32-2 moves to the right side via the resin ball 30, The piston 94 of the injector 90 is pushed in by the pressing portion 88 at the tip, and the easily oxidizable substance 76 is pushed out from the injection hole 96 and brought into contact with the oxidant 74.

  The solid fire extinguisher 26 is ignited by contact with the oxidant 74 and the easily oxidizable substance 76 which are ignition agents on the surface of the solid fire extinguisher 26 to generate heat, and the solid fire extinguisher 26 burns to release the aerosol. The

  FIG. 16 is a cross-sectional view showing another embodiment of the present invention that is ignited by a chemical reaction on the housing side. In FIG. 16, a double balloon 102 is disposed in a storage cylindrical hole 72 formed in the solid fire extinguisher 26 stored in the housing 12.

  As shown in FIG. 17, the double balloon 102 is formed by integrating a lid 104, an upper container 106, a partition 108, and a lower container 110 using a thin film resin sheet. And the oxidizing agent 74 is sealed in the lower container 110.

Referring to FIG. 16 again, with respect to the double balloon 102 disposed in the storage cylindrical hole 72, the crushing tool 80 formed at the tip of the stem 32-2 provided in the heat-sensitive operation unit is positioned.
In this embodiment, the crushing tool 80 having a sharp tip has a plurality of relief grooves 80a around the crushing tool 80, and when the crushing tool 80 is inserted into the double balloon 102 and crushed by the operation of the heat sensitive operation unit. The oxidizable substance 76 flows out through the escape groove 80a so that the oxidant 74 can be contacted efficiently.

  FIG. 18 is a cross-sectional view showing another embodiment of the present invention ignited by a chemical reaction on the housing side. In FIG. 18, a balloon 112 is disposed in a storage cylindrical hole 72 formed in the solid fire extinguisher 26 stored in the housing 12, and an oxidant 74 is disposed in the back thereof.

  As shown in FIG. 19, the balloon 112 uses a thin film resin sheet to integrate a lid 114 and a container 116, and encloses an easily oxidizable substance 76 therein.

Referring to FIG. 18 again, the crushing tool 80 formed at the tip of the stem 32-2 provided in the heat-sensitive operation unit is positioned with respect to the balloon 112 disposed in the storage cylindrical hole 72.
Also in the present embodiment, the crushing tool 80 with a sharp tip has relief grooves 80a formed at a plurality of locations around the crushing tool 80, and when the crushing tool 80 is inserted into the balloon 112 and crushed by the operation of the heat-sensitive operation unit, The easily oxidizable substance 76 flows out through the escape groove 80a so that it can efficiently contact the oxidant 74.

  As long as the balloon 112 is crushed with the crushing tool 80 and the oxidant and the oxidizable substance can be brought into contact with each other, the arrangement of the oxidizable substance and the oxidant may be reversed or arranged side by side. .

  In the embodiment in which the shape memory spring is provided, the shape memory spring is provided in each of the tip cylinder, the intermediate cylinder, and the base cylinder, but at least the other cylinder is provided in the tip cylinder. It may not be provided on the body.

  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.

  In the ignition mechanism of the above embodiment, the rubbing agent side is moved and the igniting agent side is fixed. However, conversely, the igniting agent side may be moved and the rubbing agent side is fixed.

  In addition, this embodiment has a size that is suitable for the monitoring area of the target device or board, but it is as small as possible while ensuring a housing size that can accommodate the required amount of fire extinguishing agent. It is desirable to do.

  In addition, a transfer switch such as a limit switch that detects the operation of the smoke-extinguishing and extinguishing device 10 and outputs a transfer signal to the outside may be provided on the housing 12 side in the above embodiment. For example, in the embodiment of FIG. 2, a limit switch is arranged on the housing 12 side, and the limit switch is turned on by the movement of the stem 32-2 provided on the base cylindrical body 22 side when a fire is detected. What is necessary is just to output a signal.

  The transfer signal from the smoke-extinguishing device 10 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.

  In the above-described embodiment, manual activation is performed by the manual activation lever 20 provided at the distal end of the distal end cylindrical body. However, the present invention is not limited to this, and it may be provided in the middle of the cylindrical body or on the housing side. For example, a manual activation unit may be provided behind the housing so that the second magnet 44 provided in the housing 12 approaches the first magnet 42 side.

  Further, the manual activation lever 20 and the shape memory spring 28 are arranged in the same cylinder in the distal end cylinder 18, but this is not limiting, and the manual activation lever 20 is made independent and the manual activation lever is further attached to the distal end of the distal end cylinder 18. A cylindrical body may be attached as necessary.

  Further, the stem 32-2, the partition wall 34-2, the rubbing agent 38, and the first magnet 42 are not provided on the base cylindrical body 22, but may be provided on the housing 12 side.

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

10: Smoke-extinguishing device 12: Housing 14: Spout 16: Thermal operation part 18: End cylinder 20: Manual start lever 22: Base cylinder 24: Extinguishing agent storage part 26: Solid extinguishing agent 28, 28-1, 28-2, 28-3: Shape memory spring 30: Resin balls 32, 32-1, 32-2, 32-12: Stems 34, 34-1, 34-2, 3411, 34-12: Septum 35: Valve Seal 36, 36-1, 36-2: Bias spring 38: Rub 40: Ignition 42, 48: First magnet 44, 50: Second magnet 45, 82: Flue 46: Intermediate cylinder 48a, 50a: Tapered surface 52: Insertion port 54: Flexible tube 56: Thermal plate 58: Retainer 60: Low temperature solder 62: Compression springs 64A, 64A to 64D: Flame ejection preventing member 72: Storage cylindrical hole 74: Oxidizing agent 76: Easy Oxidizing substances 78 and 112: balloons 0: crushing device 80a: escape groove 84: Plunger 86: crushing claw 88: pressing portion 90: injector 92: Cylinder 94: Piston 96: Injection hole 98: stopper flange 102: double balloon

Claims (7)

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
An ignition mechanism for igniting and burning the solid fire extinguisher;
It has a length corresponding to the distance from the housing to the fire detection position, and the displacement to the memory shape when the shape memory spring arranged at the fire detection position reaches a predetermined temperature is transmitted to the housing side. A heat-sensitive operating part for operating the ignition mechanism;
With
The ignition mechanism includes an igniter in which at least an oxidant and an oxidizable substance are separately disposed, and the oxidant and the oxidizable substance are separated from each other by a mechanical operation when the heat-sensitive operation unit is activated. A smoke-extinguishing apparatus configured to contact a surface of a fire extinguisher and to ignite the solid fire extinguisher by heat generated by the contact.
The smoke-extinguishing apparatus according to claim 1, wherein the easily oxidizable substance is a highly viscous liquid easily oxidizable substance.
The smoke-extinguishing apparatus according to claim 1, wherein the easily oxidizable substance is glycerin.
2. The smoke-extinguishing apparatus according to claim 1, wherein the ignition mechanism includes a container that encloses the easily oxidizable substance, and the oxidant is disposed in a back of a storage hole formed in the solid fire extinguisher and a hole is formed. A smoke-extinguishing apparatus characterized in that the container is disposed and closed on the opening side, 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. .
2. The smoke-extinguishing apparatus according to claim 1, wherein the ignition mechanism includes a container enclosing the easily oxidizable substance, and the oxidant is stored in a deepest portion of a storage hole formed in the fire extinguisher composition. Subsequently, the container is arranged, a plunger provided with a crushing tool is arranged on the hole opening side, and when the heat-sensitive operation unit is operated, the plunger is pushed in and the container is crushed by the crushing tool and the easy A smoke-extinguishing apparatus characterized by contacting an oxidizing substance with the oxidizing agent.
The smoke-extinguishing apparatus according to claim 1, wherein the ignition mechanism is a storage hole formed in the fire extinguishing agent composition by filling a cylinder with the easily oxidizable substance discharged by movement of biston and including another injector. In the state where the oxidant is disposed behind the injector, the injector is disposed in the hole opening and closed, and when the heat-sensitive operation unit is activated, the oxidizable substance is discharged by pushing the piston of the injector. A smoke-extinguishing device characterized by contacting with an oxidant.
  2. The smoke-extinguishing apparatus according to claim 1, wherein the ignition mechanism includes a container in which the oxidant and the oxidizable substance are individually enclosed, and the container is placed in a storage hole formed in the fire extinguisher composition. A smoke-extinguishing apparatus, which is arranged and crushes the container with a crushing tool when the heat-sensitive operation unit is operated to contact the oxidizable substance and the oxidant.

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