JP2019003410A - Smoke detector - Google Patents

Abstract

To provide a smoke detector capable of extinguishing initial fire along with specifying a generation point of smoke.SOLUTION: A smoke detector includes: a nozzle unit 2 having an air suction port 42; a detection unit 31 that has a suction fan to detect smoke density based on smoke particles contained in the suctioned air; a blowout unit 36 for blowing out air or fire-extinguishing agent; and a housing 10 internally having the detection unit 31 and the blowout unit 36. The housing 10 includes a changeover unit 17 for selectively making any one of the detection unit 31 and the blowout unit 36 communicate with the nozzle unit 2. In a case where the changeover unit 17 makes the detection unit 31 communicate with the nozzle unit 2, the detection unit 31 suctions air by the suction fan. In a case where the changeover unit 17 makes the blowout unit 36 communicate with the nozzle unit 2, the blowout unit 36 is adapted to blow out air or fire-extinguishing agent from the nozzle unit 2.SELECTED DRAWING: Figure 7

Description

  The present invention relates to a portable smoke detector that detects smoke particles contained in air sucked from a suction nozzle.

  In a clean room in a computer room or a semiconductor manufacturing facility where a server or the like is installed, a high-sensitivity smoke detector capable of detecting minute smoke is installed. The high-sensitivity smoke detector sucks air from the sampling tube installed in the monitoring area, optically detects particles floating in the sucked air using laser light, and the number of particles exceeds a predetermined value. In the case, an alarm is output.

  In addition to such a fixed smoke detector, a portable smoke detector is also known. The portable smoke detector is used by being brought into a monitoring area, and includes a suction nozzle that sucks air and a main body that detects smoke concentration in the air sucked from the suction nozzle. An operator grasps the main body of the portable smoke detection device or fixes it to the body with a shoulder strap or the like, and moves while holding the suction nozzle by hand. And the generation | occurrence | production location of smoke can be pinpointed by directing a suction nozzle to various locations. As such a smoke detection device, for example, there is a device described in Patent Document 1.

Japanese Patent Application No. 2014-182803 Specification

  When the smoke generation location in the monitoring area is identified using the portable smoke detection device, it is recognized that an initial fire has occurred there, and fire extinguishing work such as spraying a fire extinguisher is subsequently performed. However, for that purpose, it is necessary for an operator to change to a different device such as a fire extinguisher instead of the smoke detection device, which is troublesome. It is important to extinguish the initial fire as quickly as possible, and prompt extinguishing is required following the location of the fire.

  This invention is made | formed in view of the said subject, and it aims at providing the smoke detection apparatus which can also extinguish an initial fire while specifying a smoke generation | occurrence | production location.

In order to solve the above problems, a smoke detection device according to claim 1 detects a smoke concentration based on a nozzle part having an air suction port and a smoke particle having a suction fan and contained in the sucked air. A detection unit, an ejection unit that ejects air or a fire extinguishing agent, and a housing that includes the detection unit and the ejection unit inside.
The housing includes a switching unit that selectively communicates either the detection unit or the ejection unit with the nozzle unit, and the switching unit communicates the detection unit with the nozzle unit. In the state where the detection unit sucks air with the suction fan and the switching unit communicates the ejection unit with the nozzle unit, the ejection unit ejects air or a fire extinguishing agent from the nozzle unit. It is configured as.

  Moreover, the smoke detection device according to the invention of claim 2 is characterized in that the ejection part is a fire extinguisher device having a fire extinguisher inside.

  Furthermore, the smoke detection device according to the invention of claim 3 is characterized in that the ejection portion is an air duster device having compressed air therein.

  Furthermore, the smoke detection device according to the invention of claim 4 is characterized in that the ejection portion is an ejection fan device that takes in external air and ejects it.

  In the smoke detection device according to the invention of claim 5, the casing has an exhaust port for the air sucked by the detection unit, and the exhaust port is provided with a filter member, and in the jet fan device It is also characterized by being an external air intake.

  Further, in the smoke detecting device according to the invention of claim 6, the nozzle member having the suction port is detachable from the casing or a nozzle section casing connected to the casing via a hose member. The ejection nozzle used at the time of ejection by the ejection section can be attached to the casing or the nozzle section casing in place of the nozzle member.

  According to the smoke detection device of the present invention, when the detection unit identifies the smoke generation location in a state where the detection unit and the nozzle unit are in communication, the switching unit switches to a state in which the ejection unit and the nozzle unit are in communication. The fire can be extinguished by ejecting air or a fire extinguishing agent from the nozzle part. Thereby, since the detection and extinguishing of a fire can be performed without changing the apparatus, the fire can be extinguished quickly.

It is a front view of the smoke detection apparatus in this embodiment. It is a top view of a main-body part. It is a bottom view of a main-body part. It is an enlarged view of an alarm display part. It is a top view of a nozzle part. It is a block diagram showing the structure of the smoke detection apparatus. It is a conceptual diagram regarding the air flow path of a smoke detection apparatus. It is a conceptual diagram regarding the air flow path of the smoke detection apparatus in the state which switched the switching part to the fire extinguisher apparatus side. It is a front view of a nozzle part and a nozzle member which can be attached to a nozzle part, and a jet nozzle. It is a conceptual diagram regarding the air flow path of the smoke detection apparatus which has an ejection fan apparatus as an ejection part.

  Embodiments of the present invention will be described in detail with reference to the drawings. The smoke detection device according to the present embodiment is portable, and is used by an operator to move in a monitoring area by holding it by hand or fixing it to the body, and to identify the location where smoke is generated. In FIG. 1, the front view of the smoke detection apparatus in this embodiment is shown. As shown in this figure, in the smoke detection device, the main body 1 and the nozzle 2 are connected by a hose member 3.

  The main body 1 has a main body housing 10 formed in a box shape, and a main body handle 11 that can be held by hand is provided on the upper surface thereof. On the front surface of the main body casing 10, an alarm display section 12 for displaying the smoke concentration level, an operation state in which the main body section 1 sucks air and detects smoke, and a fire extinguishing agent is ejected from the main body section 1. A switching operation unit 18 that switches an operation state for performing fire extinguishing is disposed. Further, a hose connection portion 15 for connecting the hose member 3 is formed on the side surface of the main body housing 10.

  2 shows a plan view of the main body 1 and FIG. 3 shows a bottom view of the main body 1. In addition to the main body handle 11 described above, a power switch 13 is disposed on the upper surface of the main body housing 10. The power switch 13 can perform an on / off operation of power supply in the smoke detection device. A discharge port 16 for discharging air sucked from the nozzle unit 2 is disposed on the bottom surface of the main body housing 10.

  FIG. 4 shows an enlarged view of the alarm display unit 12. The alarm display unit 12 includes a caution light, a warning light, and a warning light corresponding to the detected increase in smoke density. In addition, a power lamp indicating power supply, a fault representative lamp indicating occurrence of a fault, and a suction check lamp indicating clogging of the suction system are provided. Further, the alarm display unit 12 is also provided with a reset switch 14 that is operated when returning to a normal state when an error occurs in the smoke detection device.

  As shown in FIG. 1, the nozzle part 2 has a nozzle part housing 20 formed in a box shape. A hose connection portion 21 that connects the hose member 3 from the main body portion 1 is formed in the nozzle portion housing 20. A nozzle connection portion 22 is provided on the surface of the nozzle housing 20 opposite to the surface on which the hose connection portion 21 is provided, and a nozzle member 40 can be attached and detached here. The nozzle member 40 includes a hollow pipe portion 41 and has a suction port 42 at the tip.

  In FIG. 5, the top view of the nozzle part 2 is shown. A nozzle handle 23 is provided on the upper surface of the nozzle housing 20 so that it can be held by hand. The main body handle portion 11 of the main body portion housing 10 can be held with one hand, and the nozzle handle portion 23 of the nozzle portion housing 20 can also be held with one hand, so that the operator can hold the main body portion 1 with one hand. With the other hand, the nozzle part 2 can be held and operated.

  A smoke density display unit 24 is arranged on the upper surface of the nozzle unit housing 20 so as to be aligned with the nozzle handle unit 23. The smoke density display part 24 is a bar graph-like display part and can display the detected smoke density in real time. Note that the smoke density display unit 24 is not limited to a bar graph type, and may have another form such as a smoke density display with a numerical value or an indicator.

  Next, the internal configuration of the smoke detection device will be described. FIG. 6 is a block diagram showing the configuration of the smoke detection device. As shown in this figure, the main body includes a control unit 30 that controls the smoke detection device, a smoke detection unit 31 that detects smoke concentration, a suction unit 32 that sucks air, and a power source for the smoke detection device. Power supply unit 34, and a fire extinguisher device 36 and a switching unit 17 serving as an ejection unit. Operations of the smoke detection unit 31, the suction unit 32, the fire extinguisher device 36, and the switching unit 17 are controlled by the control unit 30. The power supply part 34 consists of a rechargeable battery. The switching unit 17 can switch between a state in which the nozzle unit 2 and the smoke detection unit 31 communicate with each other and a state in which the nozzle unit 2 and the fire extinguisher device 36 communicate with each other.

  The control unit 30 is connected to the power switch 13 and the reset switch 14, the alarm display unit 12, the switching operation unit 18, and the transmission unit 33. When the power switch 13 is operated from OFF to ON, power is supplied from the power supply unit 34 to each unit, and the control unit 30, the smoke detection unit 31, the suction unit 32, and the like are in an operating state. The transmission unit 33 transmits the smoke density information detected by the smoke detection unit 31 to the smoke density display unit 24 of the nozzle unit 2. Further, the switching operation unit 18 can perform an operation of switching the operation state described above by changing the state of the switching unit 17.

  The smoke detection unit 31 takes in the air sucked through the nozzle portion 2 into the drawing tube, and forms an image of a laser beam on the airflow flowing through the drawing tube to form a smoke detection point of about 1 micrometer. Scattered light generated when smoke particles pass through the smoke detection point is received by a photodiode arranged in parallel with the direction of the electric field component E of the laser light, and a detection pulse is output and counted. A minute smoke density can be detected. Information on the smoke density detected by the smoke detection unit 31 is sent to the control unit 30. The control unit 30 transmits the smoke density information to the smoke density display unit 24 of the nozzle unit 2 via the transmission unit 33, and causes the smoke density display unit 24 to display according to the smoke density detected by the smoke detection unit 31. be able to.

  The suction unit 32 has a suction fan inside, and can thereby suck air from the suction port 42 of the nozzle unit 2. Air sucked from the suction port 42 is taken into the smoke detection unit 31 of the main body 1 through the hose member 3. The air discharged from the smoke detection unit 31 is discharged to the outside from the discharge port 16 of the main body 1.

  The power supply unit 34 is connected to the power supply circuit unit 35. The power supply circuit unit 35 can be connected to an AC plug that can be connected to an AC outlet, and can be converted to a predetermined DC voltage and output to the power supply unit 34 by inputting AC 100 volts. As a result, power is input to the power supply unit 34 from the power supply circuit unit 35 and charging is performed.

  Next, the air flow path and switching thereof in the main body 1 will be described. In FIG. 7, the conceptual diagram regarding the air flow path of a smoke detection apparatus is shown. As described above, the main body 1 includes the smoke detection unit 31, the suction unit 32, the fire extinguisher device 36, and the switching unit 17. The suction unit 32 is located between the smoke detection unit 31 and the discharge port 16, sucks air from the suction port 42, guides air to the smoke detection unit 31, and discharges the air from the discharge port 16 to the outside.

  The discharge port 16 is provided with a filter member 16a. The filter member 16a is configured by an air filter or the like that can remove dust and particles in the air. Since the suction port 42 is directed to various locations in the monitoring area and sucks air, dust or the like may be sucked in. By providing the filter member 16a at the discharge port 16, the air can be discharged after being cleaned, and workability can be improved.

  The switching unit 17 is bifurcated on the nozzle unit 2 side. In FIG. 7, the nozzle unit 2 and the smoke detection unit 31 are in communication with each other. The suction port 42 and the smoke detection unit 31 communicate with each other via the hose member 3 and the nozzle portion 2. At this time, by operating the suction unit 32, the air sucked from the suction port 42 is discharged from the discharge port 16 through the hose member 3, the switching unit 17, the smoke detection unit 31, and the suction unit 32. That is, the state of FIG. 7 is an operation state in which air is sucked by the main body unit 1 to detect smoke. Further, in this state, the fire extinguisher device 36 is not used, so the fire extinguisher device 36 is locked by the control unit 20.

  In FIG. 8, the conceptual diagram regarding the air flow path of the smoke detection apparatus in the state which switched the switch part 17 to the fire extinguisher apparatus 36 side is shown. As shown in this figure, the switching part 17 can be made into the state which made the nozzle part 2 side and the fire extinguisher apparatus 36 side communicate. That is, the state of FIG. 8 is an operation state in which a fire extinguishing agent is ejected from the main body 1 and fire extinguishing is performed. At this time, the smoke detection unit 31 side does not communicate with the nozzle unit 2. In this state, since the fire extinguisher device 36 is used, the control unit 20 releases the lock of the fire extinguisher device 36. Switching of the switching unit 17 can be performed by the switching operation unit 18 as described above.

  In the state of FIG. 8, the fire extinguisher can be ejected from the fire extinguisher device 36 through the nozzle portion 2. At this time, the nozzle member 40 is removed from the nozzle part 2, and the ejection nozzle 45 is attached instead. The ejection nozzle 45 has a lever portion 46 for ejecting the fire extinguishing agent, and a tip portion thereof serves as an ejection port 47 for ejecting the fire extinguishing agent.

  In FIG. 9, the front view of the nozzle part 2 and the front view of the nozzle member 40 and the ejection nozzle 45 which can be attached to the nozzle part 2 are shown. As described above, the nozzle member 40 can be attached to and detached from the nozzle connecting portion 22 of the nozzle portion 2. For this reason, instead of the nozzle member 40, the ejection nozzle 45 can be attached to the nozzle connection portion 22.

  The ejection nozzle 45 has a lever portion 46 that can be grasped by an operator. With the switching operation unit 18, the switching unit 17 is brought into a state where the nozzle unit 2 side and the fire extinguisher device 36 are in communication with each other, and the lever unit 46 is operated so that the fire extinguisher is discharged from the fire extinguisher device 36. The fire extinguishing agent is ejected from the ejection port 47.

  Next, the usage method of the smoke detection apparatus of this embodiment is demonstrated. A fixed smoke detector is installed in the monitoring area, and when a smoke concentration higher than a predetermined level is detected in the smoke detector, the operator holds the smoke detector of the present embodiment, and the monitoring area Work to identify the location of smoke generation. At this time, the switching unit 17 is in a state where the nozzle unit 2 and the smoke detection unit 31 are communicated with each other as shown in FIG.

  The worker who enters the monitoring area operates the power switch 13 from off to on to turn on the smoke detector. Next, the worker moves to a location where smoke is likely to occur, for example, if the monitored area is a computer room, close to the server. When reaching a place where smoke is likely to be generated, the suction port 42 of the nozzle unit 2 is directed to various places to suck air, and the smoke detection unit 31 detects the smoke density. Since the smoke density is displayed on the smoke density display unit 24 at hand, the operator can grasp the smoke density in real time. Further, when the display state of the alarm display unit 12 of the main body unit 1 is changed according to the smoke density level and smoke is generated from the place where the suction port 42 is directed, the fact is immediately grasped. be able to.

  When smoke generation is detected, the operator operates the switching unit 17 so that the nozzle unit 2 and the fire extinguisher device 36 are in communication with each other as shown in FIG. Further, the nozzle member 40 is replaced with the ejection nozzle 45. After that, the extinguishing agent is ejected from the fire extinguisher device 36 by operating the lever portion 46 by directing the ejection port 47 of the ejection nozzle 45 toward the location where the smoke is generated, and the fire extinguishing work is performed.

  In the smoke detection device of the present embodiment, the switching unit 17 can switch between the state in which the nozzle unit 2 and the smoke detection unit 31 communicate with each other and the state in which the nozzle unit 2 and the fire extinguisher device 36 communicate with each other. At first, smoke is detected using the smoke detection unit 31 in a state where the nozzle unit 2 and the smoke detection unit 31 are in communication with each other. After the smoke generation location is specified, the switching unit 17 causes the nozzle unit 2 and the fire extinguisher device 36 to be connected. Is switched to a state in which the fire extinguisher is communicated, and the fire extinguisher from the fire extinguisher apparatus 36 is ejected from the nozzle portion 2 to perform the fire extinguishing work. Thereby, since the detection and extinguishing of a fire can be performed without changing the apparatus, the fire can be extinguished quickly.

  In the present embodiment, the fire extinguisher device 36 is used as the ejection portion, but any device capable of ejecting air or a fire extinguisher may be used. The fire extinguishing agent may be water or the like in addition to the chemical. As an ejection part which can eject air, the air duster apparatus which has compressed air inside and can eject this can be used.

  In addition, as an ejection portion that can eject air, an ejection fan device that takes in air from the outside and ejects it can also be used. In FIG. 10, the conceptual diagram regarding the air flow path of the smoke detection apparatus which has the ejection fan apparatus 37 as an ejection part is shown. One side of the ejection fan device 37 communicates with the switching unit 17, and the other side communicates with the discharge port 16. Therefore, in this embodiment, the exhaust port 16 functions as an air exhaust port when the smoke detection unit 31 is used, and functions as an external air intake port when the ejection fan device 37 is used.

  Also in the form of FIG. 10, the discharge port 16 has a filter member 16a. As a result, exhaust air can be purified when air is sucked from the suction port 42, and even when air is ejected from the ejection port 47, the purified air can be ejected, and reliable fire extinguishing can be achieved. be able to.

  Although the embodiment of the present invention has been described above, the application of the present invention is not limited to this embodiment, and can be applied in various ways within the scope of its technical idea. For example, in the above-described embodiment, the nozzle member 40 is used for smoke detection, and the jet nozzle 45 is used for the fire extinguishing agent. You may perform both ejection of a fire extinguisher.

DESCRIPTION OF SYMBOLS 1 Main body part 2 Nozzle part 3 Hose member 10 Main body part housing | casing 11 Main body handle part 12 Alarm display part 13 Power switch 14 Reset switch 15 Hose connection part 16 Outlet 16a Filter member 17 Switching part 18 Switching operation part 20 Nozzle part housing DESCRIPTION OF SYMBOLS 21 Hose connection part 22 Nozzle connection part 23 Nozzle handle part 24 Smoke density display part 30 Control part 31 Smoke detection unit 32 Suction unit 33 Transmission part 34 Power supply part 35 Power supply circuit part 36 Fire extinguisher apparatus 37 Ejection fan apparatus 40 Nozzle member 41 Pipe Part 42 Suction port 45 Ejection nozzle 46 Lever part 47 Ejection port

Claims (6)

A nozzle portion having an air suction port, a detection portion having a suction fan and detecting smoke concentration based on smoke particles contained in the sucked air, an ejection portion for ejecting air or a fire extinguishing agent, the detection portion, and A housing with an ejection portion inside,
The housing includes a switching unit that selectively communicates either the detection unit or the ejection unit with the nozzle unit, and the switching unit communicates the detection unit with the nozzle unit. In the state where the detection unit sucks air with the suction fan and the switching unit communicates the ejection unit with the nozzle unit, the ejection unit ejects air or a fire extinguishing agent from the nozzle unit. A smoke detector.   The smoke detection device according to claim 1, wherein the ejection unit is a fire extinguisher device having a fire extinguisher inside.   The smoke detection device according to claim 1, wherein the ejection portion is an air duster device having compressed air therein.   The smoke detection device according to claim 1, wherein the ejection unit is an ejection fan device that takes in external air and ejects the air.   The casing has an exhaust port for air sucked by the detection unit, and the exhaust port is provided with a filter member and also serves as an intake port for external air in the blower fan device. Item 5. The smoke detection device according to Item 4.   A nozzle member having the suction port is detachable from the casing or a nozzle section casing connected to the casing via a hose member, and an ejection nozzle used at the time of ejection by the ejection section is the nozzle member It can replace with and can be mounted | worn with the said housing | casing or a nozzle part housing | casing, The smoke detection apparatus of any one of Claims 1-5 characterized by the above-mentioned.

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