JP5020127B2 - Sprinkler fire extinguishing equipment - Google Patents

Description

  The present invention relates to a sprinkler fire extinguishing equipment that discharges water from a sprinkler head to extinguish a fire when a fire occurs.

  A conventional sprinkler head has a heat-sensitive part (solder) that melts by heat at the time of a fire, and a heat collecting plate that transmits heat at the time of the fire to the heat-sensitive part is attached to the lower end thereof. This heat collecting plate has a structure that absorbs the impact and deforms when receiving a force (impact) from the outside. This is to prevent problems from occurring in parts of the support mechanism of the valve body that closes the water outlet of the sprinkler head (see, for example, Patent Document 1).

Japanese Utility Model Publication No. 5-33746 (6th page, FIG. 1)

  By the way, even if the sprinkler head is not directly subjected to external force, if a strong impact is applied to the pipe itself to which the sprinkler head is attached, the impact is transmitted to the sprinkler head through the pipe, and the valve body support mechanism closes the water outlet. May be deformed, or the valve body and those parts may be displaced. When such a malfunction occurs, the sprinkler head may cause water leakage or malfunction, and the water in the secondary side pipe may be discharged. In addition, there is a possibility that parts of the support mechanism of the valve body are abnormally deformed and cannot operate normally. Thus, when an indirect impact is applied to the sprinkler head, there is a problem that it is difficult to find the state in appearance.

  The present invention has been made to solve the above-described problems, and provides a sprinkler fire extinguishing equipment capable of detecting the state when a strong impact is applied to a pipe to which a sprinkler head is attached. For the purpose.

The sprinkler fire extinguishing equipment according to the present invention has a primary side pipe connected to the water pump, a secondary side pipe connected to the primary side pipe, and a plurality of sprinkler heads provided in the secondary side pipe, The sprinkler fire extinguishing equipment, where the primary side pipe and the secondary side pipe are filled with water pressurized by the water pump, is equipped with an impact sensor that is directly attached to the secondary side pipe . A sensor that detects an impact force sometimes applied to the secondary pipe, and a controller that outputs a signal when the impact force detected by the sensor exceeds a predetermined value that causes an abnormality in the sprinkler head ; And an output unit for notifying that the impact has been detected when a signal from the control unit is input.

According to the present invention, the impact sensor senses an impact force applied to the secondary side pipe when receiving an impact from the outside, and when the impact force exceeds a predetermined value that causes an abnormality in the sprinkler head. , so that to notify the effect of the shock撃検knowledge. This makes it possible to identify sprinkler heads that may fail due to strong impacts, so it is possible to check whether it is necessary to replace the sprinkler heads that are difficult to check from the outside, and to minimize water leakage. ing to. In addition, it is possible to prevent normal operation due to abnormal deformation of parts from being performed.

Embodiment 1 FIG.
FIG. 1 is a schematic diagram of a piping system showing a sprinkler fire extinguishing facility according to Embodiment 1 of the present invention, and FIG. 2 is an enlarged side view showing a falling pipe portion of a secondary side piping of the sprinkler fire extinguishing facility according to Embodiment 1. FIG. 3 is a block diagram of an impact sensor attached to a secondary pipe plumbing pipe.
In FIG. 1, a water pump 1 is installed in the vicinity of a fire extinguishing water tank 2 provided in a basement of a building or the like, for example, and a discharge amount capable of discharging water of 80 liters per minute or more from a sprinkler head 7 disposed on each floor of the building. have. The primary side pipe 3, one end of which is connected to the water supply pump 1, stands vertically up to the top floor in the building piping space 10, and is branched at each floor and connected to, for example, the running water detection device 4.

  The secondary pipes 5 are respectively provided on the back of the ceiling of each floor, one end of which is connected to the water flow detection device 4, and the end is connected to a falling pipe 6 a that passes through the ceiling plate 11 and hangs down. A manual test valve 8 is attached to the tip of the down tube 6a. The secondary pipe 5 is connected to a falling pipe 6 that hangs down in the vertical direction according to the installation position of the sprinkler head 7. In addition, the falling pipe 6 is also a part of the secondary side pipe 5. As shown in FIG. 2, for example, the falling pipe 6 has an impact sensor 20 directly attached to a substantially central portion by a fixture 12. The sprinkler head 7 is attached to the part.

  The sprinkler head 7 has a flange portion 7 a having a male screw formed on the outer peripheral portion, and a heat-sensitive solder 7 b and two heat collecting plates 7 c are provided at the lower end of the sprinkler head 7. It is screwed into a female screw formed in the part. The sprinkler head 7 is attached with a sealing plate 9 in which a male screw of the flange portion 7 a is screwed and a circular outer peripheral portion is in contact with the lower surface of the ceiling plate 11. On the inclined surface of the sealing plate 9, a recess 9a for accommodating a light emitting diode 23b described later is formed.

  The above-described primary side pipe 3 and secondary side pipe 5 are normally filled with water pressurized by the water pump 1, and the solder 7b of the sprinkler head 7 is melted by a fire to close the water outlet. When a part of the support mechanism (not shown) falls, water is discharged from the water outlet of the sprinkler head 7. At this time, the flowing water detection device 4 detects flowing water from the primary side pipe to the secondary side pipe, and by this detection, the control panel (not shown) drives the water supply pump 1 to primarily remove the water in the fire extinguishing water tank 2. The water is fed into the side pipe 3 and the water discharge from the sprinkler head 7 is continued. The water pump 1 may be driven when the primary side pipe 3 is lowered to a predetermined pressure.

  As shown in FIG. 3, the impact sensor 20 fixed to the substantially central portion of the down pipe 6 is, for example, a sensor unit 21 (sensing unit) that generates a voltage in response to vibration caused by an impact force applied to the secondary side pipe 5. ), And a control unit 22 that outputs a signal when the voltage from the sensor unit 21 is equal to or higher than a predetermined value, and a switching circuit 23a and a light emitting diode 23b connected to the switching circuit 23a via a signal line 23c, for example. The output unit 23 and an internal power supply 24 made of, for example, a primary battery are used. The aforementioned output unit 23 drives the switching circuit 23a when a signal from the control unit 22 is input, outputs a pulse signal having one cycle of ON / OFF, blinks the light emitting diode 23d, and detects the impact. Inform the effect.

In the sprinkler fire extinguishing equipment configured as described above, the operation at the time of impact detection of the impact sensor will be described.
For example, if a tool or material hits the secondary pipe 5 or the falling pipe 6 when refurbishment is performed on a certain floor in a building, the vibration due to the impact force is generated on the secondary side. It is transmitted to the impact sensor 20 through the pipe 5 and the falling pipe 6. At this time, the sensor unit 21 that has detected the impact among the plurality of impact sensors 20 generates a voltage according to the vibration due to the impact force detected by the sensor unit 21, and the control unit 22 has the voltage equal to or higher than a predetermined value. Determine whether or not. In this case, since the impact sensor 20 in the vicinity of the impacted pipe senses the strongest, when the control unit 22 of the impact sensor 20 detects a voltage of a predetermined value or more, the output unit 23 is connected from the control unit 22. When the above signal is input, the switching circuit 23a is driven to output a pulse signal, and the light emitting diode 23b attached to the sealing plate 9 blinks to notify the impact detection.

  As described above, according to the first embodiment, when an impact is applied to the secondary side pipe 5 or the falling pipe 6, each impact sensor 20 is deformed by the valve body of the sprinkler head 7 and the parts of its support mechanism, Alternatively, when a strong impact that causes a positional shift is detected, the light emitting diode 23b attached to the sealing plate 9 blinks, so it is easy to confirm whether or not it is necessary to replace the sprinkler head 7 which is difficult to confirm from the appearance. This makes it possible to minimize water leakage and prevent normal operation due to abnormal deformation of parts.

Embodiment 2. FIG.
In the first embodiment, when a strong impact is detected, the light-emitting diode 23b disposed in the vicinity of the sprinkler head 7 is blinked to notify that the impact has been detected. In addition to the blinking of 23b, the information is also notified to the disaster prevention center or the like where the manager is stationed, and will be described below with reference to FIGS.
FIG. 4 is a schematic diagram of a piping system showing a sprinkler fire extinguishing facility according to Embodiment 2 of the present invention, and FIG. 5 is a diagram of an impact sensor attached to a falling pipe of a secondary side piping and a receiver installed in a disaster prevention center. It is a block block diagram. In addition, the same code | symbol is attached | subjected to the same or equivalent part as Embodiment 1 demonstrated in FIGS. 1-3, and description is abbreviate | omitted.

  In FIG. 4, the impact sensor 30 is directly attached to the downpipe 6 of the secondary side pipe 5 as in the first embodiment, and the receiver 40 is installed at a disaster prevention center or the like where the manager is resident. As shown in FIG. 5, the impact sensor 30 includes a switching circuit 23a to which a light emitting diode 23b is connected and an output unit 31 having a wireless transmission unit 31a. When the signal from the control unit 22 is input, the output unit 31 drives the switching circuit 23a to output a pulse signal having one cycle of ON / OFF, and information on shock detection from the wireless transmission unit 31a. Is transmitted wirelessly. This information is, for example, the effect of impact detection and the rank of impact detection.

  The receiver 40 includes a wireless reception unit 41, a control unit 42, an alarm unit 43 including a buzzer, and a display unit 44 including a liquid crystal display. When the radio wave from the impact sensor 30 is received, the radio reception unit 41 detects and extracts information and outputs it to the control unit 42. Based on the information, the control unit 42 displays the effect of impact detection and the floor number of the impact detection on the display unit 44, and activates the alarm unit 43 to generate an alarm sound and notify the administrator.

In the sprinkler fire extinguishing equipment configured as described above, the operation at the time of impact detection of the impact sensor will be described.
In the same way as described above, when refurbishment is performed by changing the partition, etc., if a tool or material hits the secondary side pipe 5 or the down pipe 6, vibration due to the impact force will stand up with the secondary side pipe 5. It is transmitted to the downcomer 6 and transmitted to the impact sensor 30. At this time, the sensor unit 21 that has detected the impact among the plurality of impact sensors 30 generates a voltage according to the vibration caused by the impact force, and the control unit 22 determines whether the voltage is equal to or higher than a predetermined value. When there is an impact sensor 30 having a control unit 22 that detects a voltage of a predetermined value or more, the output unit 31 drives the switching circuit 23a to output a pulse signal, and information on impact detection from the wireless transmission unit 31a. Is transmitted by radio waves.

  At this time, the light emitting diode 23b attached to the sealing plate 9 blinks based on the input of the pulse signal to notify the impact detection, and the receiver 40 of the disaster prevention center receives the radio wave from the impact sensor 30. When this occurs, the effect of impact detection and the floor number of impact detection are displayed on the display unit 44, and the alarm unit 43 is activated to generate an alarm sound and notify the administrator.

  As described above, according to the second embodiment, when an impact is applied to the secondary side pipe 5 or the falling pipe 6, each impact sensor 20 deforms the valve body of the sprinkler head 7 and the components of its support mechanism, Alternatively, when a strong impact that causes displacement is detected, the light-emitting diode 23b attached to the sealing plate 9 blinks, and the effect of impact detection and the rank of the impact detection are passed through the alarm unit 43 and the display unit 44 of the receiver 40. Since it is easy to confirm from which floor the notification is made, it is possible to easily check whether or not the sprinkler head 7 is difficult to check from the appearance, and minimize water leakage. In addition, normal operation due to abnormal deformation of parts is not performed.

  In Embodiment 2, the radio wave transmitted from the impact sensor 30 is directly received by the receiver 40. However, the receiver 40 has a long distance to the receiver 40 or the receiver 40 has a structure due to the structure of the building. When the radio wave does not reach with high sensitivity, a radio repeater is provided so that the radio wave can reach the receiver 40.

Embodiment 3 FIG.
In the first and second embodiments, the impact sensors 20 and 30 are directly attached to the falling pipe 6 of the secondary pipe 5, but in the third embodiment, the impact is applied to the proximal end side and the distal end side of the secondary pipe 5. The sensor is attached and will be described below with reference to FIGS.
FIG. 6 is a schematic diagram of a piping system showing a sprinkler fire extinguishing facility according to Embodiment 3 of the present invention, and FIG. 7 is a block configuration diagram of an impact sensor attached to a down pipe on the base end side and a terminal end side of the secondary side pipe. It is. In addition, the same code | symbol is attached | subjected to the same or equivalent part as Embodiment 1 demonstrated in FIGS. 1-3, and description is abbreviate | omitted.

  In FIG. 6, the impact sensor 50 is directly attached to the base end side and the terminal end side of the secondary side pipe 5 on each floor. The impact sensor 50 on the base end side is disposed at a position that can be seen when a maintenance door provided on each floor of the building is opened, and the impact sensor 50 on the end end side is exposed through the ceiling plate 11. Is attached to the down tube 6a. As shown in FIG. 7, these impact sensors 50 include an output unit 51 having a liquid crystal display 51a. When the signal from the control unit 22 is input, the output unit 51 displays the impact detection on the liquid crystal display 51a. The liquid crystal display 51a is provided on the front surface of the case of the impact sensor 50 (not shown).

In the sprinkler fire extinguishing equipment configured as described above, the operation at the time of impact detection of the impact sensor will be described.
In the same way as described above, when refurbishment is performed by changing the partition or the like, if a tool or material hits the secondary side pipe 5 or the falling pipe 6, vibration due to the impact force causes the base side of the secondary side pipe 5. It is transmitted to the end side and the end side and transmitted to the impact sensor 50. At this time, the sensor units 21 of the two impact sensors 50 generate a voltage according to the vibration caused by the impact force, and the control unit 22 determines whether the voltage is equal to or higher than a predetermined value. For example, when the control unit 22 of one impact sensor 30 detects a voltage equal to or higher than a predetermined value, the output unit 51 drives the liquid crystal display 51a to display the effect of impact detection.

  As described above, according to the third embodiment, when one of the two impact sensors 50 senses a strong impact that causes an abnormality in the sprinkler head 7, the fact is displayed on the liquid crystal display 51a. As a result, it can be seen that a strong impact is applied to either the proximal side or the distal side of the secondary side pipe 5 through the information, and the sprinkler head 7 that may have caused an abnormality is connected to the secondary side pipe 5. It is possible to specify to some extent whether it is on the proximal side or the distal side.

Embodiment 4 FIG.
In the third embodiment, when a strong impact that causes an abnormality in the sprinkler head 7 is detected, the fact is displayed on the liquid crystal display 51a. However, in the fourth embodiment, information on the impact detection is displayed on the liquid crystal display. In addition to the display device 51a, notification is also made to the receiver 40 side, which will be described below with reference to FIGS.
FIG. 8 is a schematic diagram of a piping system showing a sprinkler fire extinguishing facility according to Embodiment 4 of the present invention, and FIG. 9 is a block configuration diagram of an impact sensor attached to the proximal end side and the distal end side of the secondary side piping. In addition, the same code | symbol is attached | subjected to the same or equivalent part as Embodiment 1, 2 demonstrated in FIGS. 1-5, and description is abbreviate | omitted.

  In FIG. 8, the impact sensor 60 is directly attached to the proximal end side and the distal end side of the secondary side pipe 5 on each floor as in the third embodiment. As shown in FIG. 9, the impact sensor 60 includes an output unit 61 having a liquid crystal display 51a and a wireless transmission unit 31a. When the signal from the control unit 22 is input, the output unit 61 displays the impact detection on the liquid crystal display 51a provided on the front of the case of the impact sensor 60, and detects the impact from the wireless transmission unit 31a. Are transmitted to the receiver 40 wirelessly. As described above, this information includes the effect of impact detection and the rank of impact detection.

In the sprinkler fire extinguishing equipment configured as described above, the operation at the time of impact detection of the impact sensor will be described.
In the same way as described above, when refurbishment is performed by changing the partition or the like, if a tool or material hits the secondary side pipe 5 or the falling pipe 6, vibration due to the impact force causes the base side of the secondary side pipe 5. It is transmitted to the impact sensor 60 through the end side and the end side. At this time, the sensor unit 21 that has sensed the impact among the two impact sensors 60 generates a voltage according to the vibration caused by the impact force, and the control unit 22 determines whether the voltage is equal to or higher than a predetermined value. For example, when the control unit 22 of one impact sensor 60 detects a voltage equal to or higher than a predetermined value, the output unit 61 drives the liquid crystal display 51a to display the impact detection, and from the wireless transmission unit 31a Sends shock detection information via radio waves.

  The receiver 40 of the disaster prevention center detects when radio waves are received from the impact sensor 60, extracts information such as the impact detection and the floor number, and determines the impact detection impact and the floor number of the impact detection of the information. While displaying on the display unit 44, the alarm unit 43 is activated to generate an alarm sound and notify the administrator.

  As described above, according to the fourth embodiment, when one of the two impact sensors 60 senses a strong impact that causes an abnormality in the sprinkler head 7, the fact is displayed on the liquid crystal display 51a. In addition, since the alarm detection unit 43 and the display unit 44 of the receiver 40 are used to notify the impact detection and the floor number of the impact detection, it is easy to determine from which floor the notification is made and it is difficult to confirm from the appearance. Whether or not the sprinkler head 7 needs to be replaced can be easily confirmed, water leakage can be minimized, and normal operation due to abnormal deformation of parts is not performed.

  In the fourth embodiment, the radio wave transmitted from the impact sensor 60 is directly received by the receiver 40. However, the distance to the receiver 40 is long, or the receiver 40 has a structure due to the structure of the building. When the radio wave does not reach with high sensitivity, a radio repeater is provided so that the radio wave can reach the receiver 40. Alternatively, a repeater that receives a radio signal may be provided on each floor, and each repeater may be connected to the receiver 40 via a signal line.

  In the fourth embodiment, it has been described that the output unit 61 of the impact sensor 60 includes the liquid crystal display 51a and the wireless transmission unit 31a. However, only the wireless transmission unit 31a may be used. In this case, a radio repeater is arranged in the piping space 10 on each floor so that the radio wave from the impact sensor 60 is transmitted to the receiver 40. When this radio repeater receives a radio wave (impact detection information), it determines whether it is the shock sensor 60 on the proximal side or the distal side of the secondary pipe 5 from the level of the received radio wave, and receives that information as well. To the machine 40. For this determination, a threshold value is set in advance, and the level of the radio wave transmitted from the proximal side impact sensor 60 is set higher than the threshold value, and the level of the radio wave transmitted from the distal side impact sensor 60 is set lower than the threshold value. It becomes possible by keeping.

  In each embodiment, in the case of using the liquid crystal display 51a as an output unit, when receiving an impact, the impact force may be actually digitized to display the degree of impact numerically. . By using such a display, processing after the sprinkler and piping are impacted by an earthquake becomes easy. For example, just because of an earthquake, fire extinguishing equipment is not necessarily severely damaged. This is because the impact force (external force value) is considered to vary greatly depending on the structure of the building or ceiling. Therefore, if an indicator capable of displaying the impact force is provided, it is possible to know the external force value that each sprinkler head or pipe receives from the ceiling or building after the earthquake. Then, this value can be used as a guideline for determining where to check and whether or not to replace each device.

It is the schematic of the piping system which shows the sprinkler fire extinguishing equipment which concerns on Embodiment 1 of this invention. FIG. 3 is an enlarged side view showing a downfall pipe portion of a secondary side pipe of the sprinkler fire extinguishing facility in the first embodiment. It is a block block diagram of the impact sensor attached to the falling pipe of secondary side piping. It is the schematic of the piping system which shows the sprinkler fire extinguishing equipment which concerns on Embodiment 2 of this invention. It is a block block diagram of the receiver installed in the impact sensor and disaster prevention center which were attached to the falling pipe of secondary side piping. It is the schematic of the piping system which shows the sprinkler fire extinguishing equipment which concerns on Embodiment 3 of this invention. It is a block block diagram of the impact sensor attached to the falling pipe of the base end side and the terminal end side of secondary side piping. It is the schematic of the piping system which shows the sprinkler fire extinguishing equipment which concerns on Embodiment 4 of this invention. It is a block block diagram of the impact sensor attached to the base end side and the terminal end side of secondary side piping.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Water supply pump, 2 Fire extinguishing water layer, 3 Primary piping, 4 Flowing water detection apparatus, 5 Secondary side piping, 6 Falling pipe, 6a Falling pipe, 7 Sprinkler head, 7a Flange part,
7b solder, 7c heat collecting plate, 8 test valve, 9 sealing plate, 9a recess,
DESCRIPTION OF SYMBOLS 10 Piping space, 11 Ceiling board, 12 Fixture, 20 Impact sensor, 21 Sensor part, 22 Control part, 23 Output part, 23a Switching circuit, 23b Light emitting diode, 23c Signal line, 24 Internal power supply, 30 Impact sensor, 31 Output Part, 31a wireless transmission part, 40 receiver, 50 impact sensor, 51 output part, 51a liquid crystal display, 60 impact sensor, 61 output part.

Claims (6)

A primary side pipe connected to the water supply pump; a secondary side pipe connected to the primary side pipe; and a plurality of sprinkler heads provided on the secondary side pipe; and the primary side pipe and the second side pipe In the sprinkler fire extinguishing equipment in which the secondary pipe is filled with water pressurized by the water pump,
Comprising an impact sensor directly attached to the secondary pipe;
The impact sensor includes a sensing unit that senses an impact force applied to the secondary pipe when receiving an impact from the outside, and an impact force sensed by the sensing unit causes an abnormality in the sprinkler head. A sprinkler fire extinguishing equipment, comprising: a control unit that outputs a signal when a value is equal to or greater than a predetermined value; and an output unit that notifies that an impact has been detected when a signal is input from the control unit. The secondary side pipe has a falling pipe with the sprinkler head mounted at the tip,
The sprinkler fire extinguishing equipment according to claim 1, wherein the impact sensor is directly attached to the falling pipe.   The sprinkler fire extinguishing equipment according to claim 1, wherein the impact sensor is directly attached to a proximal end side and a distal end side of the secondary side pipe.   The output unit includes a light emitting diode disposed in the vicinity of the sprinkler head, and when the signal from the control unit is input, the light emitting diode is turned on or blinked to notify that an impact has been detected. The sprinkler fire extinguishing equipment according to claim 1 or 2.   2. The output unit includes a display provided in a case of the impact sensor, and displays and notifies that an impact has been detected when a signal is input from the control unit. Or the sprinkler fire extinguishing equipment of 3. A receiver for receiving radio signals;
The output unit further includes a wireless transmission unit that wirelessly transmits shock detection information when a signal from the control unit is input,
The sprinkler fire extinguishing equipment according to claim 4 or 5, wherein, when a radio signal is received from the radio transmission unit, the receiver reports information on impact detection based on the received signal.

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