JP6350786B2 - Mobile smoke detector and method for identifying smoke generation position using the same - Google Patents

Description

  The present invention relates to a mobile smoke detection device that detects smoke while moving in a protective space, and a method for specifying a smoke generation position using the same.

  Conventionally, as a means for detecting a fire from its predictive stage, a suction type smoke detection device that sucks air in a protective space through a sampling pipe and detects smoke contained in the air has been used. .

  Specifically, the suction type smoke detector is fixed to the ceiling, wall, under floor, etc. of the protective space together with the sampling pipe for sucking the air in the protective space, and is in the air sucked through the sampling pipe. Is detected optically (see, for example, Patent Document 1).

  The suction type smoke detection device can also be used for detecting leakage of refrigerant gas in an air conditioner installed in a server room or the like.

Japanese Patent No. 3648307

  Suction smoke detectors can detect smoke with higher sensitivity than other smoke detectors and smoke detectors that are not suction type. It is often installed, but in that case, it should be detected even if the smoke is at a stage where it cannot be confirmed with the naked eye, so that it can be handled from the very early warning stage of the fire. It is installed with a high sensitivity setting.

  When a suction type smoke detector is installed with such a high sensitivity setting, it is possible to catch a fire at a predictive stage, but when the smoke detector is activated, the detected smoke cannot be confirmed with the naked eye If it is, it cannot be identified with the naked eye. Therefore, the smoke generation position can be specified only up to the protection range of the activated smoke detection device, and it cannot be specified to a narrower range, and the necessary measures should be taken for the entire protection range of the activated smoke detection device. I had to.

  In addition, the invention of the above-mentioned Patent Document 1 specifies a smoke generation position by providing a plurality of smoke detection devices in which addresses can be set in a smoke detection system provided with a suction type smoke detection device. We are proposing a technology that enables us to do this. However, even with such a technique, the smoke generation position can be specified only up to the protection range of each of the smoke detectors arranged in a distributed manner, and a narrower range cannot be specified.

  In view of the above circumstances, the present invention aims to provide a smoke detection device capable of specifying a generation position of a smoke in a narrow range even if it is a smoke at a stage that cannot be confirmed with the naked eye. It is an object of the present invention to provide a method for identifying the smoke generation position.

The present invention includes a sampling tube having a sampling hole for sucking air at a distal end side and a flexible tube connected to a proximal end side, the sampling tube being connected via the flexible tube, and the sampling A suction-type smoke detector main body that detects smoke contained in air sucked through a pipe, a power supply unit that is electrically connected to the smoke detector main body and supplies power, and the smoke detector main body; A storage unit that stores the power supply unit, and a holding unit that is connected to the storage unit and holds the storage unit on the operator's body, and the sampling tube is gripped by the operator when smoke is detected. A gripping portion that guides the gripping direction of the sampling tube in one direction to the operator according to its shape, and the sampling hole guides the sampling tube guided by the gripping portion. It is provided on a side surface facing gripping forward a mobile smoke detecting apparatus according to claim.

  The holding unit may include a pair of shoulder straps connected to the left and right sides of the storage unit, and hung in the front-rear direction on the left and right shoulders of the operator while the storage unit is suspended. The unit is a mobile smoke detection device that is held in front of the operator's body by the pair of shoulder straps.

  In addition, the present invention is the mobile smoke detection device, wherein the holding portion further includes a connection strap that connects the pair of shoulder straps in front and / or behind the operator's body.

  Further, according to the present invention, the sampling tube is a gripping portion that an operator grips when detecting smoke, and further has a gripping portion that guides the gripping direction of the sampling tube in one direction by the shape of the sampling tube. In the mobile smoke detection device, the sampling hole is provided on a side surface of the sampling tube that is guided by the gripping portion and facing forward in the gripping direction.

  Also, the present invention is the mobile smoke detection device, wherein the sampling tube further has means for allowing an operator to visually recognize the direction of airflow.

  Further, the present invention is the mobile smoke detection device, wherein the flexible tube is connected to the smoke detection device main body through a substantially L-shaped joint.

  In addition, the present invention is a mobile smoke detector characterized by further comprising means for notifying the operator of the amount of smoke detected by voice.

  In addition, the present invention is a mobile smoke detection device further comprising means for notifying an operator of the passage of a predetermined time by voice.

  The present invention also relates to a smoke generation position specifying method for specifying a smoke generation position using the mobile smoke detection apparatus, and is a fixed smoke detection apparatus provided as a constantly fixed apparatus in a protective space. After detecting the generation of smoke, the step is carried out using the mobile smoke detector in the protective space, and holds the storage part of the mobile smoke detector and holds the sampling tube And moving the entire position of the mobile smoke detector or the position of the sampling tube itself while detecting smoke in that state, and identifying the smoke generation position based thereon. This is a method for identifying the smoke generation location.

  According to the present invention, in the step of identifying the smoke generation position, the smoke detection sensitivity of the smoke detection device body of the mobile smoke detection device is set to the smoke detection sensitivity of the smoke detection device body of the fixed smoke detection device. This is a method for identifying a smoke generation position, which is executed with a dullness than the detection sensitivity.

  According to the present invention, the step of identifying the smoke generation position is performed by moving the entire position of the mobile smoke detector or the position of the sampling tube itself while directing the sampling hole to the windward side. This is a method for identifying a smoke generation position.

  According to the present invention, the step of identifying the smoke generation position is performed by holding the sampling tube and directing the sampling hole forward in the holding direction. It is a specific method.

  According to the present invention, while holding the storage part of the mobile smoke detection device and holding the sampling tube, the entire position of the mobile smoke detection device or the position of the sampling tube itself is moved while detecting smoke in this state. Therefore, the smoke generation position can be specified, so that the generation position can be specified in a narrow range even if the smoke cannot be confirmed with the naked eye.

  Therefore, according to the present invention, it is possible to provide a smoke detecting device capable of specifying a generation position of smoke at a stage that cannot be confirmed with the naked eye in a narrow range, and a method for specifying the generation position of such smoke. Can be provided.

It is an example of embodiment of the mobile smoke detection apparatus of this invention, and is a top view (upper surface side) of the whole apparatus in the state in which the sampling tube and the shoulder strap which is a holding | maintenance part were connected. FIG. 2A is a front view (front side) and FIG. 2B is a rear view (rear side) of the entire apparatus with the sampling tube and the shoulder strap removed. The same as the above, with the sampling tube and shoulder strap removed, (a) is a left side view and (b) is a right side view of the entire apparatus. It is the enlarged view which showed the same and expanded and showed only the sampling tube. In the state where the sampling tube is removed but the entire apparatus is held by the body, (a) is a photograph taken from the front of the body, and (b) is a photograph taken from the rear of the body. It is the schematic of the protection space which showed an example of embodiment of the identification method of the smoke generating position of this invention while showing same as the above.

  An embodiment of the present invention will be described with reference to FIGS.

  First, an example of an embodiment of a mobile smoke detector according to the present invention will be described with reference to FIGS.

  The mobile smoke detection device 1 is an example of an embodiment of the smoke detection device according to the embodiment of the present invention. The smoke detection device 1 has a sampling hole 4a for sucking air at the distal end side, and a flexible tube 3 at the proximal end side. The connected sampling tube 4, the sampling tube 4 is connected via the flexible tube 3, and a suction-type smoke detector main body 5 that detects smoke contained in the air sucked through the sampling tube 4, and smoke A power supply unit 6 (see FIG. 2) for supplying power to the detection device main body 5, a storage unit 7 in which the smoke detection device main body 5 and the power supply unit 6 are stored, and a storage unit 7 connected to the storage unit 7 And a pair of left and right shoulder straps 8 which are holding portions for holding the device on the operator's body.

  That is, in the mobile smoke detector 1, the operator holds the storage portion 7 with the shoulder strap 8 and holds the sampling tube 4, and moves the entire device or the sampling tube 4 itself while detecting smoke in this state. This makes it possible to identify the smoke generation position.

  Therefore, according to the mobile smoke detector 1, even if the generated smoke cannot be confirmed with the naked eye, the generation position can be specified in a narrow range.

  As a result, the mobile smoke detector 1 can be used to identify the smoke generation position in a protective space provided with a fixed smoke detector, such as a computer room. The smoke whose position is identified cannot be confirmed with the naked eye, and depending on the fixed smoke detector, it can only be handled for all computers within the protection range of the activated smoke detector. Even if it is a thing, since it is possible to identify the smoke generation position in a narrow range as described above, it is sufficient to deal only with computers etc. within a narrow range, and The time required can be remarkably shortened, and non-targeted computers can continue to be used.

  The components of the mobile smoke detector 1 of the present embodiment will be described in more detail.

  The storage unit 7 includes a storage unit lid 7a having a lower surface opened and a storage unit body 7b having an upper surface opened, and has a box shape as a whole. As shown in FIG. 2, the storage unit lid 7a is configured by a pair of left and right hinge members 7c provided between the front surface of the storage unit lid 7a and the front surface of the storage unit body 7b. In addition, the closed state can be maintained by a pair of left and right lock members 7d provided between the rear surface of the storage portion lid 7a and the rear surface of the storage portion main body 7b. (The surface on which the hinge member 7c and the lock member 7d are provided can be appropriately changed, and the front and back of the surface to be provided may be reversed.)

  In the storage unit 7, the smoke detection device main body 5 is stored in the storage unit lid 7a, and the power supply unit 6 is stored in the storage unit main body 7b. Since the lower surface 7a is opened as described above, as a fixing member for fixing the smoke detecting device body 5 inside, as shown in FIGS. The pair of left and right L-shaped fixing members 11 includes a side surface portion fixed to the left and right side surfaces of the storage portion lid body 7a by screws 11a and a bottom surface portion to which the bottom portion of the smoke detection device body 5 is fixed. A pair of left and right L-shaped fixing members 11 are provided, so that the smoke detection device body 5 can be accommodated even when the lower surface is opened, The position can be fixedThe storage unit body 7b is provided with a belt-like fixing member 12 for fixing the power supply unit 7 on the bottom surface, whereby the position of the power supply unit 6 can be fixed (see FIG. 2).

  The storage lid 7a houses the smoke detection device main body 5 and covers the top surface of the smoke detection device main body 5 with the top plate portion 7e. The top plate portion 7e is provided on the top surface of the smoke detection device main body 5. A display window 7f is provided at a position corresponding to the display unit 5a, and the measurement result displayed on the display unit 5a of the smoke detector main body 5 can be visually recognized through the display window 7f. ing.

  The housing lid 7a is provided with an insertion port 7g through which the flexible tube 3 is inserted on the front surface thereof, and the proximal end side of the flexible tube 3 is inserted into the insertion port 7g so that the smoke detection device body 5 The sampling tube 4 is connected to the smoke detection device main body 5 via the flexible tube 3 by being connected to the intake port 5c. In addition, the proximal end side of the flexible tube 3 may be connected to the intake port 5c of the smoke detection device body 5 using an L-shaped joint, so that the amount by which the flexible tube 3 protrudes forward is determined. It can be reduced, and it can be made more compact.

  In addition, the storage unit main body 7b is provided with a heat radiating plate 7h formed with a plurality of holes on the left and right side surfaces (see FIG. 3), thereby heat from the power supply unit 6 stored inside is externally provided. It is possible to discharge the air and to discharge the sucked air. As the power supply unit 6, a rechargeable battery is used in the present embodiment. A power cable insertion port 7k is provided on the rear surface of the storage lid 7a to charge the power supply 6 as a storage battery.

  The storage portion 7 is provided with an annular connection member for connecting a pair of left and right shoulder straps 8. In this embodiment, as the connection member, the left and right side surfaces of the storage portion lid 7 a are provided. There are four upper connection members 7i located on the front side and lower connection members 7j located on the rear side of the left and right side surfaces of the storage body 7b.

  As will be understood in detail with reference to the enlarged view of FIG. 4, the sampling tube 4 is formed of a resin-made hard pipe having a straight cylindrical shape, and the sampling holes 4a are arranged at equal intervals in series along the axial direction. In this embodiment, a plurality of pieces are formed (the number is five in this embodiment, but the number may be changed as appropriate). In the sampling tube 4, a grip portion 4 b for an operator to grip the sampling tube 4 is provided on the proximal end side to which the flexible tube 3 is connected. The gripping portion 4b has a shape that guides the gripping direction of the sampling tube 4 by the operator in one direction, and the sampling hole 4a is forward of the gripping direction of the sampling tube 4 guided by the gripping portion 4b (arrow 4A). Direction). Thus, if the operator grips the sampling tube 4 by the grip portion 4b, all the sampling holes 4a can be automatically directed forward in the gripping direction. The sampling tube 4 will be described in detail later with reference to FIG. 6, but may be provided with means for allowing the operator to visually recognize the airflow direction of the protective space.

  The flexible tube 3 is made of a flexible material so that the sampling tube 4 can be freely moved. The flexible tube 3 may be a spiral tube. If the flexible tube 3 is a spiral tube, it can be expanded and contracted, and the sampling tube 4 can be moved more freely.

  Each of the pair of left and right shoulder straps 8 has a distal end connection member 8 a with an opening / closing mechanism and a proximal end connection member 8 b, and the distal end connection member 8 a is connected to the upper connection member 7 i on the left and right side surfaces of the storage portion 7. In addition, the base end connection member 8b is connected to the lower connection members 7j on the left and right side surfaces of the storage unit 7, and is connected to the left and right side surfaces of the storage unit 7 so as to form a loop. It has become. As a result, as shown in the photograph of FIG. 5A, the storage unit 7 is hung on the left and right shoulders of the operator in the front-rear direction while the storage unit 7 is suspended. It can be held forward so as to embrace it. The pair of left and right shoulder straps 8 may be provided with shoulder pads as shown in the photographs of FIGS. 5 (a) and 5 (b).

  Further, in the present embodiment, a pair of left and right shoulder straps 8 for connecting the pair of left and right shoulder straps 8 at the front of the operator and a pair of left and right connection straps 10 for connecting at the rear of the operator are a pair of left and right shoulders. It is connected to each of the straps 8. Each of the pair of left and right connecting straps 9 and 10 has buckle portions 9a and 9b and buckle portions 10a and 10b that can be separated from each other. By connecting them to each other, FIG. As shown in the photographs (a) and (b), a pair of left and right shoulder straps 8 can be connected to the front and rear of the operator, and the shoulder straps 8 are fitted to the body, The storage part 7 can be held more reliably. The pair of left and right connecting straps 9 and the pair of left and right connecting straps 10 each have an adjustment member for adjusting the length to one buckle part 9b, 10b, and the other buckle part 9a, 10a. The length at the time of connection with can be adjusted.

  Here, the device configuration of the smoke detection device main body 5 and the smoke detection mechanism will be briefly described. The smoke detection device main body 5 is a suction type as described above, and although not shown in the drawings, a smoke detection unit for optically detecting smoke and a smoke detection by sucking air through the sampling tube 4 A fan for passing through the smoke detector in the unit is provided inside, and when the sucked air passes through the smoke detector in the smoke detector unit, if smoke is contained in the air, it is optically detected. Can be detected (detection of scattered light). In the smoke detection device body 5, the smoke detection unit has a light emitting element and a light receiving element for optically detecting smoke. By using a laser as a light source of the light emitting element, smoke is generated with extremely high sensitivity. It is possible to detect.

  Further, the display unit 5a of the smoke detector main body 5 can be visually confirmed through the display window 7f of the storage unit 7 as described above, but the amount of smoke detected is displayed on the display unit 5a. A bar graph 5b that displays in stages is provided, and the amount of smoke detected by the bar graph 5b can be confirmed. That is, the smoke generation position can be specified by checking the amount of smoke detected by the bar graph 5b. Although not shown, the smoke detection device main body 5 also includes a sensitivity adjustment means for changing the sensitivity of smoke detection, and can appropriately change the sensitivity of smoke detection, for example, Corresponding to the increase in the amount of smoke detected as it approaches the smoke generation position, the smoke detection sensitivity can be reduced (dull) and the scale of the display scale by the display unit 5a can be changed. Accordingly, the smoke generation position can be specified in a narrower range.

  Next, based on FIG. 6, an example of an embodiment of the method for specifying the smoke generation position of the present invention will be described.

  As shown in FIG. 6, for example, in the computer room R in which the fixed smoke detection device 100, which is a fixed device, is provided, the mobile smoke generation position according to the present invention is specified. The detection can be performed using the detection device 1.

  Here, the fixed smoke detector 100 will be briefly described. The fixed smoke detector 100 sucks the sampling pipe 102 having a sampling hole for sucking the air in the computer room R circulated by the air conditioner 103 as indicated by an arrow, and sucked through the sampling pipe 102. And a suction-type smoke detector main body 101 for detecting smoke in the air, which are arranged in a flow path of an air flow that circulates in the under-floor space in the computer room R, and is a computer room that is a protective space It is provided as a device fixed to R at all times. In addition, the apparatus configuration of the smoke detection device main body 101 in the fixed smoke detection device 100 can be the same as that of the smoke detection device main body 5 in the mobile smoke detection device 1.

  In the computer room R, when smoke is generated from a computer in any of the racks 104, the fixed smoke detector 100 first detects the smoke. If the smoke detected by the fixed smoke detection device 100 is in a stage that cannot be confirmed with the naked eye, the smoke generation position that can be specified by the fixed smoke detection device 100 is up to the protection range. By using the mobile smoke detector 1, the smoke generation position can be specified in a narrow range.

  That is, when smoke is generated in the computer room R, the stationary smoke detector 100 provided as a fixed device at all times detects the generation of smoke, and then the mobile smoke detector as shown in FIG. 1 is held on the body by the shoulder strap 8 and the grip 4b of the sampling tube 4 is gripped, and the smoke of the mobile smoke detector 1 in the computer room R is detected while detecting smoke in this state. By moving the position or the position of the sampling tube 4 itself, the position where the smoke is generated is specified. Specifically, the position of the entire smoke detection device 1 is moved toward each rack 104 while detecting smoke, or the position of the sampling tube 4 itself is moved within each rack 104 to detect the smoke detection device main body 5. The smoke generation position is specified based on the detected amount of smoke displayed on the display unit 5a. Thereby, even if the generated smoke cannot be confirmed with the naked eye, the generation position of the smoke can be specified in a narrow range. Note that the sensitivity of the smoke detection device body 5 of the mobile smoke detection device 1 is dull in advance than the smoke detection device body 101 of the fixed smoke detection device 100 (for example, 2.5 times the smoke concentration at which the fixed smoke detector operates). And the step of identifying the position where smoke is generated by the mobile smoke sensing device 1 can be executed.

  In the example shown in FIG. 6, the tip of the sampling pipe 4 of the mobile smoke detector 1 is provided with a blow-off portion 4 c that flutters downwind by the airflow in the protective space, as will be understood in detail from the enlarged view. It has become. By providing the airflow part 4c, it is possible to check the direction of the airflow in the protective space (including the direction of the airflow in each rack 104), and detect smoke with the sampling hole 4a facing upward. However, the entire mobile smoke detector 1 or the sampling tube 4 itself can be moved. In addition, when the smoke generation position is specified, it is possible to easily confirm that the object to be investigated is upwind.

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

  For example, in the computer room R, the fixed smoke detector 100 may be addressable, and a plurality of the fixed smoke detectors 100 may be provided. The fixed smoke detector that operates the range in which the mobile smoke detector 1 is moved. After narrowing down the protection range of the device 100, the step of specifying the smoke generation position by the mobile smoke detector 1 may be executed.

  In addition, when performing the step of identifying the smoke generation position by the mobile smoke detector 1, it may be executed while changing the smoke detection sensitivity. Corresponding to the increase in the amount of smoke detected as it approaches the generation position, the smoke detection sensitivity is changed to a lower value, and the scale of the display scale by the display unit 5a is changed, thereby making the smoke generation position smoother. You may enable it to specify narrowly.

  Further, when executing the step of specifying the smoke generation position by the mobile smoke detector 1, the position of the sampling tube 4 is moved, and after stopping at that position for a predetermined time, it is determined whether or not it is a fire generation position. You may do it. In that case, for example, a timer and an acoustic unit are provided in the grip portion 4b of the sampling tube 4, and the timer is started when the movement of the sampling tube 4 is stopped, so that the operator is notified of the passage of a predetermined time by voice or the like. It may be.

  Further, when the step of specifying the smoke generation position by the mobile smoke detector 1 is executed, the amount of smoke detected may be notified to the operator by voice (for example, to the smoke detector main body 5). An audio output unit that outputs the signal sound by changing the volume of the signal sound according to the amount of smoke detected may be provided, thereby notifying the operator.

1: Mobile smoke detector 3: Flexible tube 4: Sampling tube 4a: Sampling hole 4b: Gripping part 4c: Blowing part 4A: Front in the gripping direction 5: Smoke detecting device main body 5a: Display part 5b: Bar graph 5c: Intake Mouth part 6: Power supply part 7: Storage part 7a: Storage part lid body 7b: Storage part main body 7c: Hinge part 7d: Lock part 7e: Top plate part 7f: Display window 7g: Insertion port (for flexible tube) 7h: Heat dissipation Plate part 7i: Upper connecting member 7j: Lower connecting member 7k: Insertion port (for power cable)
8: Shoulder strap 8a: Tip connection member 8b: Base end connection member 9: Connection strap (front) 9a: Buckle portion 9b: Buckle portion 10: Connection strap (rear) 10a: Buckle portion 10b: Buckle portion 11: Fixing member 11a : Screw 12: Fixed member 100: Fixed smoke detector 101: Smoke detector main body 102: Sampling pipe 103: Air conditioner 104: Rack R: Computer room

Claims (6)

A sampling tube having a sampling hole for sucking air on the distal end side, and a flexible tube connected to the proximal end side;
A suction type smoke detector main body connected to the sampling tube via the flexible tube and detecting smoke contained in the air sucked through the sampling tube;
A power supply unit that is electrically connected to the smoke detector main body and supplies power;
A storage section for storing the smoke detector main body and the power supply section;
A holding part connected to the storage part for holding the storage part on the operator's body ,
The sampling tube is a gripping portion that an operator grips when detecting smoke, and further has a gripping portion that guides the gripping direction of the sampling tube in one direction by the shape of the sampling tube, and the sampling hole Is provided on a side surface facing forward in the gripping direction of the sampling tube guided by the gripping portion . The mobile smoke detection device according to claim 1 , wherein the sampling tube further includes means for allowing an operator to visually recognize the airflow direction. A specific method of smoke generation position to identify the occurrence position of the smoke using the mobile smoke detecting apparatus according to claim 1 or 2,
After the stationary smoke detection device provided as a fixed device in the protective space detects the generation of smoke, the mobile smoke detection device is executed in the protective space using the mobile smoke detection device. While holding the storage part of the smoke detection device and holding the sampling tube, while detecting smoke in that state, the entire position of the movable smoke detection device or the position of the sampling tube itself is moved, and based on that A method for identifying a smoke generation position, comprising the step of specifying a smoke generation position. In the step of identifying the smoke generation position, the smoke detection sensitivity of the smoke detection device body of the mobile smoke detection device is made slower than the smoke detection sensitivity of the smoke detection device body of the stationary smoke detection device. 4. The method for identifying a smoke generation position according to claim 3 , wherein the method is performed. The step of identifying the smoke generation position is performed by moving the entire position of the mobile smoke detection device or the position of the sampling tube itself while directing the sampling hole toward the windward. The method for specifying a smoke generation position according to claim 3 or 4 . Step of identifying the occurrence position of the smoke, by gripping the sampling tube, according to any one of claims 3 to 5, characterized in that it is performed by directing the sampling hole in the grip forward To identify the location of smoke generation