JP2012014490A - Fire hydrant device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fire hydrant device capable of notifying a moving-vehicle driver an occurrence of abnormality in a tunnel and bringing the vehicle to an emergency stop.SOLUTION: A fire hydrant device 10 is installed in a tunnel 12, and a hose with a nozzle is pulled out to discharge water for fire-fighting adjusted to a prescribed constant flow by a constant flow valve. The fire hydrant device 10 includes an emergency sensing head 14 and, when an emergency installation is operated in the tunnel 12, the water for fire-fighting adjusted to the prescribed constant flow by the constant flow valve is discharged from the emergency sensing head 14 towards a traffic lane in the tunnel 12 to form a rod-like pattern 15 as an emergency sensing pattern and notify a vehicle driver driving in the tunnel 12 the occurrence of abnormality.

Description

The present invention relates to a fire hydrant device that pulls out a hose with a nozzle and extinguishes fire and performs emergency notification water discharge that informs an approaching vehicle of the operation of emergency equipment in a tunnel and makes an emergency stop.

  Conventionally, an emergency facility has been installed in a tunnel for an automobile exclusive road in order to protect a person and a vehicle from a fire accident occurring in the tunnel. Such emergency equipment is equipped with fire detectors and emergency telephones for fire monitoring and reporting, and in heavy traffic tunnels, fire hydrants are used to extinguish the fire and prevent the spread of fire. A water spray facility is provided for spraying water from the water spray head for protecting the device and tunnel.

Also, when an abnormality such as an accident occurs in the tunnel, the traffic light installed at the entrance to the tunnel is turned red to prohibit entry, or an information display panel etc. notifies the occurrence of the abnormality.

JP 2005-2111279 A

  However, in facilities that prohibit tunnel entry using such traffic lights and information display panels, traffic lights are generally not regulated on expressways and motorway roads, so traffic lights turn red. However, even if you enter the tunnel without noticing it, you will not be able to grasp the situation even if you notice a red light, so it is assumed that you will enter as it is, which may lead to a serious accident. Also, if the tunnel is long, the traffic lights will not be useful for vehicles that have already entered.

  Also, traffic lights and information display panels are installed in tunnels with heavy traffic and long distances. However, for short tunnels of 2 km or less, for example, it is not possible to install traffic lights or information display panels on all of them. If an abnormality such as an accident or a vehicle fire occurs in such a tunnel, it will enter the tunnel without noticing the abnormality, and it will stop immediately after approaching the site where the accident occurred There is a risk of an accident.

The present invention provides a fire hydrant device that uses a fire hydrant facility to visually notify a traveling driver of the occurrence of an abnormality in the tunnel, to make an emergency stop before the fire site, and to evacuate safely. The purpose is to provide.

The present invention is a fire hydrant device that is installed in a tunnel and draws a hose with a nozzle to discharge water,
A nozzle water discharge system equipped with a constant flow valve for supplying and discharging pressurized fire-fighting water to a hose with a nozzle;
An emergency head that discharges water into the tunnel to form an emergency pattern,
A tactile discharge system that supplies pressurized fire extinguishing water to the emergency tactile head,
Is provided.

  The fire hydrant apparatus according to the present invention further includes a control device that discharges water from the emergency head by valve control provided in the public awareness system during emergency operation in the tunnel.

(Corresponding to the first to third embodiments)
The nozzle discharge system is
A first constant flow valve which is connected to a water supply pipe from the pump facility and adjusts the amount of water supplied to the hose with nozzle to a predetermined first constant flow rate Q1;
A fire hydrant valve disposed on the secondary side of the first constant flow valve and opened and closed by operating a fire hydrant valve opening and closing lever;
A relief valve that is arranged on the secondary side of the fire hydrant valve and opens to the drain side to reduce the pressure when the pressure at the time of nozzle discharge exceeds a predetermined set pressure;
With
The Kakuchi water discharge system
A second constant flow valve which is branched and connected to the water supply pipe and adjusts the amount of water supplied to the emergency head to a predetermined second constant flow Q2.
An emergency sensation water discharge valve which is arranged on the secondary side of the second constant flow valve and is controlled to be opened when an emergency facility is operated in the tunnel to cause conscious water discharge from the emergency conscious head;
With
Fire extinguishing water adjusted to the first constant flow Q1 is supplied to the hose with nozzle, and fire extinguishing water adjusted to the second constant flow Q2 is supplied to the emergency head.

(Corresponding to the fourth or fifth embodiment)
The nozzle discharge system is
A third constant flow valve connected to a water supply pipe from the pump facility and adjusting to a predetermined third constant flow rate Q3 that is a total water amount for the hose with the nozzle and the emergency nozzle,
A fire hydrant valve disposed on the secondary side of the third constant flow valve and opened and closed by operating a fire hydrant valve opening and closing lever;
A relief valve that is arranged on the secondary side of the fire hydrant valve and opens to the drain side to reduce the pressure when the pressure at the time of nozzle discharge exceeds a predetermined set pressure;
With
The Kakuchi water discharge system
A second constant flow valve that is branched and connected to the secondary side of the third constant flow valve and adjusts the amount of water supplied to the emergency head to a predetermined second constant flow rate Q2,
An emergency sensation water discharge valve arranged on the secondary side of the second constant flow valve, controlled to open in conjunction with the opening operation of the fire hydrant valve opening / closing lever,
With
Fire extinguishing water adjusted to a constant flow rate (Q3-Q2) obtained by subtracting the second constant flow rate Q2 from the third constant flow rate Q3 is supplied to the hose with a nozzle, and the fire extinguishing water adjusted to the second constant flow rate Q2 is supplied to the emergency head. Supply water.

(Corresponding to the sixth embodiment)
The nozzle discharge system is
A third constant flow valve connected to a water supply pipe from the pump facility and adjusting to a predetermined third constant flow rate Q3 that is a total water amount for the hose with the nozzle and the emergency nozzle,
A fire hydrant valve disposed on the secondary side of the constant flow valve and opened and closed by operating the fire hydrant valve opening and closing lever;
A relief valve that is arranged on the secondary side of the fire hydrant valve and opens to the drain side to reduce the pressure when the pressure at the time of nozzle discharge exceeds a predetermined set pressure;
With
The tactile water discharge system is a knot water supply pipe that is branched from the secondary side of the fire hydrant valve and connected to the emergency knot head.
Divide and supply fire-fighting water adjusted to a constant flow rate to the hose with nozzle and emergency head.

(Corresponding to the seventh embodiment)
The nozzle discharge system is
A first constant flow valve that is connected to a water supply pipe from the pump equipment and adjusts to a predetermined first constant flow Q1 supplied to a hose with a nozzle;
A fire hydrant valve disposed on the secondary side of the first constant flow valve and opened and closed by operating a fire hydrant valve opening and closing lever;
A relief valve that is arranged on the secondary side of the fire hydrant valve and opens to the drain side to reduce the pressure when the pressure at the time of nozzle discharge exceeds a predetermined set pressure;
With
The Kakuchi water discharge system
An emergency water discharge valve that is branched and connected to the water supply pipe and is controlled to open when emergency equipment is operating in the tunnel;
A second constant flow valve which is arranged on the secondary side of the emergency notification water discharge valve and adjusts the amount of water supplied to the emergency notification head to a predetermined second constant flow rate Q2.
An automatic drain valve that is disposed on the secondary side of the second constant flow valve, closes when the fire-extinguishing water is supplied, opens when the fire-extinguishing water supply is stopped, and drains the fire-extinguishing water in the piping leading to the emergency head;
With
Fire extinguishing water adjusted to the first constant flow Q1 is supplied to the hose with nozzle, and fire extinguishing water adjusted to the second constant flow Q2 is supplied to the emergency head.

(Corresponding to the eighth embodiment)
The nozzle discharge system is
A third constant flow valve that is connected to a water supply pipe from the pump facility and adjusts to a predetermined third constant flow rate Q3 that is a total amount of water supplied to the hose with nozzle and the emergency nozzle,
A fire hydrant valve disposed on the secondary side of the third constant flow valve and opened and closed by operating a fire hydrant valve opening and closing lever;
A relief valve that is arranged on the secondary side of the fire hydrant valve and opens to the drain side to reduce the pressure when the pressure at the time of nozzle discharge exceeds a predetermined set pressure;
With
The Kakuchi water discharge system
An emergency discharge valve that is branched and connected to the secondary side of the third constant flow valve and is controlled to open when an emergency facility is operated in the tunnel;
A second constant flow valve which is arranged on the secondary side of the emergency notification water discharge valve and adjusts the amount of water supplied to the emergency notification head to a predetermined second constant flow rate Q2.
An automatic drain valve that is disposed on the secondary side of the second constant flow valve, closes when the fire-extinguishing water is supplied, opens when the fire-extinguishing water supply is stopped, and drains the fire-extinguishing water in the piping leading to the emergency head;
With
Fire extinguishing water adjusted to a constant flow rate (Q3-Q2) obtained by subtracting the second constant flow rate Q2 from the third constant flow rate Q3 is supplied to the hose with a nozzle, and the fire extinguishing water adjusted to the second constant flow rate Q2 is supplied to the emergency head. Supply water.

(Nozzle discharge check system)
In addition, a nozzle discharge inspection system is provided for the nozzle discharge system,
Nozzle discharge check system
A check valve that is branched and connected to the primary side of the fire hydrant valve, and is controlled to open during the check;
An orifice that is arranged on the secondary side of the check valve, and that flows the check water amount corresponding to the water discharge amount of the hose with nozzle to the drain pipe;
Is provided. The nozzle discharge inspection system is provided with a sensor for detecting the discharge pressure or flow rate at the time of inspection.

(Knowledge discharge check system)
In addition, a tactile drainage inspection system is provided for the tactile drainage system,
The tactile discharge check system
Water supply port to which pressurized fire-fighting water is supplied, water discharge port to which the emergency alert head side is connected, and inspection drainage port to which the drainage side is connected, normal position communicating with the water discharge port and inspection drainage port, water supply port A three-way switching valve partially equipped with a water discharge position that communicates with the water discharge port and a function of an awake water discharge valve that switches the water supply port to the inspection position that communicates with the inspection drainage port;
An orifice that is arranged on the inspection drainage port side of the three-way selector valve and that flows the inspection water volume equivalent to the water discharge amount of the hose with nozzle to the drainage side,
Is provided.

  The tactile water discharge inspection system is provided with a sensor for detecting the water discharge pressure or flow rate at the time of inspection.

  The emergency head is arranged on one side or both sides in the tunnel.

  The emergency awareness head is installed outside the housing and connected to the awareness water discharge system in the housing by piping.

  The emergency head is installed in the housing and discharges water from the water discharge opening to the outside.

  The control device starts to detect fire hydrant door opening, fire hydrant valve open detection, fire extinguisher door open detection, fire extinguisher removal detection, fire detection by a fire detector, or water spray equipment with overlapping compartments. If you want to let them know before, let the emergency head drain.

  When the emergency equipment is operated, the control device discharges water from its own emergency head and also discharges water from the emergency head of the fire hydrant device in one or more sections in front of its own installation section.

  The rod-shaped pattern is discharged from the emergency head.

  The rod-like pattern is discharged from the emergency head at an angle with respect to the direction crossing the lane and / or the direction along the lane.

  A bar-shaped pattern is crossed with respect to the lane from two emergency heads arranged on both sides of the tunnel to discharge water.

  The rod-shaped pattern is discharged from the emergency head in a direction that crosses the lane.

  A plurality of emergency heads are arranged to discharge a plurality of bar-shaped patterns.

The rod-like pattern is intermittently or periodically discharged from the emergency head.

  According to the fire hydrant device of the present invention, when an abnormality such as an accident or a vehicle fire occurs in a tunnel and a water hose with a nozzle is pulled out from a fire hydrant device installed nearby, Based on the detection of emergency equipment operation such as detecting the opening of a fire hydrant valve, water is discharged in the lane direction in the tunnel from the emergency head connected to the fire hydrant device in the abnormal zone to form an emergency notification pattern. Even if the driver suddenly stops by seeing the emergency sense pattern and breaks out without noticing the emergency sense pattern, the driver knows that the vehicle has water or is passing through the vehicle. It is possible to stop before entering the place of occurrence of an abnormality, or to evacuate to a safe area by slow driving, thereby preventing a secondary disaster from occurring.

  In addition, the nozzle water discharge system that discharges water for fire extinguishing from the hose with a nozzle is equipped with a constant flow valve instead of the automatic pressure control valve that has been used in the past. In the pressure regulating valve, the amount of water discharged from the nozzle is greatly reduced to reduce the flow rate so as to keep the water discharge pressure constant. However, in the constant flow valve of the present invention, the water discharge flow rate from the nozzle is kept constant. The water discharge pressure is increased, and even if the nozzle side is clogged, the decrease in the nozzle water discharge amount is suppressed and sufficient nozzle water discharge becomes possible.

  In addition, the pressure applied to the hose rises due to the control that maintains the constant flow rate of the constant flow valve against clogging on the nozzle side, and the reaction force applied to the person operating the nozzle increases. It can be prevented from being raised and operability is not impaired.

  In addition, when the water discharge increases due to leakage due to hose damage, etc., the constant flow valve operates to reduce the water discharge pressure in order to keep the water discharge from the nozzle at a predetermined flow rate, thereby suppressing leakage from the hose. The hose damage can be prevented from becoming large.

In addition, the water discharge pattern from the emergency head is made into a rod-shaped pattern, and by performing oblique water discharge, cross water discharge, side water discharge, etc., the driver can be notified of the occurrence of an abnormality due to the minimum water discharge amount equivalent to the water discharge amount of the hydrant device. You can be surely aware. Moreover, it can discharge without disturbing the smoke layer formed in the tunnel upper part by the water discharge by a rod-shaped pattern.

Explanatory drawing which showed the installation state of the fire hydrant apparatus provided with the emergency head by this invention in the tunnel plane Explanatory drawing which took out the fire hydrant apparatus of FIG. 1, and showed the external appearance and internal structure Explanatory drawing which showed 1st Embodiment of the nozzle water discharge system and the cognitive water discharge system in the fire hydrant apparatus of this invention Explanatory drawing which showed an example of the constant flow valve used by embodiment of FIG. This explanatory view showing another example of the constant flow valve used in the embodiment of FIG. Explanatory drawing which showed the other example of the constant flow valve used by embodiment of FIG. Explanatory drawing showing lateral water discharge by stick-like pattern of emergency head Explanatory drawing showing diagonal water discharge by stick-like pattern of emergency head Explanatory drawing showing cross water discharge by stick-like pattern of emergency head Explanatory drawing showing multi-water discharge by stick-like pattern of emergency sense head Explanatory drawing which showed the other example of the multi water discharge by the rod-like pattern of the emergency head Explanatory drawing which showed 2nd Embodiment of the nozzle water discharge system and the cognitive water discharge system in the fire hydrant apparatus of this invention Explanatory drawing which showed 3rd Embodiment of the nozzle water discharge system and the cognitive water discharge system in the fire hydrant apparatus of this invention Explanatory drawing which showed 4th Embodiment of the nozzle water discharge system and the cognitive water discharge system in the fire hydrant apparatus of this invention Explanatory drawing which showed 5th Embodiment of the nozzle water discharge system and the cognitive water discharge system in the fire hydrant apparatus of this invention Explanatory drawing which showed 6th Embodiment of the nozzle water discharge system and the cognitive water discharge system in the fire hydrant apparatus of this invention Explanatory drawing which showed 7th Embodiment of the nozzle water discharge system and the cognitive water discharge system in the fire hydrant apparatus of this invention Explanatory drawing which showed 8th Embodiment of the nozzle water discharge system and the cognitive water discharge system in the fire hydrant apparatus of this invention

  FIG. 1 is an explanatory view showing the installation state of a fire hydrant apparatus having an emergency awareness head according to the present invention in a tunnel plane.

  In FIG. 1, fire hydrant devices 10 are installed, for example, at intervals of 50 meters on one side wall provided with a supervisor passage in the tunnel 12 through which a road 22 passes. The fire hydrant device 10 houses a hose with a nozzle in the door, and in the event of a fire, opens the fire hydrant door, pulls out the hose with a nozzle, and discharges water by operating the fire hydrant valve opening lever. The nozzle-equipped hose from the fire hydrant device 10 can be pulled out so that the water can be discharged in a range of 25 m on the left and right in the tunnel traveling direction.

  The fire hydrant device 10 is provided with a transmitter that operates in the event of a fire and outputs a fire detection signal. A fire indicator lamp that indicates the location of the transmitter is provided near the transmitter, and a response display to the push button operation of the transmitter is performed. A response indicator light is provided. A water supply pipe 16 from the pump facility 20 is connected to the fire hydrant apparatus 10 and is connected to the disaster prevention receiving board 18 through a signal line.

  In the present embodiment, the fire hydrant device 10 installed in the tunnel 12 forms an emergency notification pattern in the direction crossing the road 22 in the tunnel 10 and discharges the water, thereby notifying the driver of the occurrence of a disaster. An emergency awareness head 14 is provided. Corresponding to the emergency head 14, a control device 11 is provided in or near the fire hydrant device 10, and when the emergency equipment is operated in the tunnel 12, the valve device is controlled to open to discharge water from the emergency head 14. .

Here, the control device 11 discharges water from the emergency head 14 in the following case.
(1) When opening of the fire hydrant door is detected (2) When opening of the hydrant valve is detected (3) When opening of the fire hydrant door is detected (4) When removal of the fire extinguisher is detected (5) Fire detection (6) When you want to notify the water spray facility before the start of water discharge,
(7) When the button on the transmitter is operated by a person,

  In order to detect such an emergency operation, a fire hydrant door detection switch, a fire hydrant valve open detection switch, a fire extinguisher door detection switch, a fire extinguisher removal detection switch, a water spray discharge detection switch, and the like are provided as necessary. Of course, water can be discharged from the emergency awareness head 14 as necessary even in other cases.

  The control device 11 of each fire hydrant device 10 is connected to a disaster prevention receiving board 18 disposed in the center or the like via a signal line, and the status signal of each switch is monitored by the disaster prevention receiving board 18 to alert or display a change in state. It can be performed.

  The disaster prevention receiving board 18 can also send a control signal to the control device 11 of the fire hydrant device 10 in the event of a fire, for example, send a control signal to the control device 11 of another fire hydrant device 10 when a change in the state of a certain fire hydrant device is detected. Various controls such as status display and driving of the valve device can be performed.

  FIG. 1 shows a case where a fire has occurred near the fourth fire hydrant device 10 from the entrance due to a vehicle accident or the like, and the fire hydrant door 10 of the fire hydrant device 10 close to the fire occurrence location is opened to provide a hose with a nozzle. When the water is drawn and discharged, for example, the control device 11 controls the opening of the valve device by detecting the opening of the fire hydrant door, and the water is discharged from the emergency head 14 connected to the outside of the fire hydrant device 10 by, for example, the bar pattern 15. I do. The direction of water discharge by the bar-shaped pattern 15 is a direction that crosses the road in the tunnel 10 directly. In addition, as shown by the broken bar-shaped pattern 15a, water may be discharged toward the front in an oblique direction (for example, the vehicle entry side).

  An emergency sense pattern is formed in the direction crossing the road 22 in the tunnel due to the water discharge from the emergency sense head 14, and an abnormality has occurred in the front of the driver of the vehicle entering the fire occurrence place. This makes it possible to stop the brakes reliably before the location of the fire.

  That is, the vehicle operator who comes to the fire spot notices the occurrence of an abnormal situation by seeing the water discharge of the bar-shaped pattern 15 that crosses the road, and receives the water discharge across the side of the vehicle without noticing the water discharge. Thus, the occurrence of an abnormal situation can be known.

  Further, since the water discharge is performed by the bar-shaped pattern 15, the water discharge amount from the emergency awareness head 14 is the minimum amount necessary for the detection of abnormality occurrence, for example, the same or less than the water discharge amount by the hose with a nozzle provided in the fire hydrant device. Even if there is a restriction on the amount of water stored in the water storage tank provided on the pump facility 20 side, the tactile water can be discharged for a necessary time, and the driver can be made sure of the abnormality.

  Further, the tactile water discharge is not limited to the water discharge from the emergency head 15 provided in the fire hydrant device 10 at the place where the fire occurs, but from the emergency head 14 of one or more fire hydrant devices 10 provided in the section in front of it. It is also possible to perform an interlocking water discharge that discharges water, so that a plurality of vehicles coming to the location of the fire can be made aware of the occurrence of an abnormality at the same time. For example, such interlocking sensed water discharge is performed by remote control from the disaster prevention reception panel 18 that has received a fire signal by operating a transmitter button.

  2 is an explanatory view of the fire hydrant device installed in the tunnel shown in FIG. 1, FIG. 2 (A) shows the front view, and FIG. 2 (B) shows the internal structure with the fire hydrant door removed. . In FIG. 2 (A), the fire hydrant device 10 is provided with a fire hydrant door 30 and a maintenance door 32 at the door opening on the right side of the decorative plate 28 disposed on the front surface of the housing 26, and the inside is a hose storage space and a valve. It is a kind of storage space.

  The fire hydrant door 30 opens and closes around the lower pivot shaft pin. On the fire hydrant door 30 is provided a maintenance door 32 that opens and closes upward by an upper pivot shaft pin. The maintenance door 32 can be opened by opening the fire hydrant door 30 and removing the inner lock at the time of inspection.

  A notification device door 34 is provided on the right side of the left door opening of the housing 26, and a red indicator lamp 36, a transmitter 38, and a response lamp 40 are provided here. The red indicator lamp 36 is always lit so that the installation location of the fire hydrant device 10 can be seen from a distance. In the event of a fire, when the transmitter 38 is pressed and the switch button is turned on, a transmission signal is transmitted to the disaster prevention receiving board 18 installed in the monitoring room, a fire alarm is issued, and a response signal is accordingly sent to the disaster prevention receiving board 18 of FIG. The response lamp 40 is turned on.

  A fire extinguisher door 42 is provided on the left side of the reporting device door 34, and the inside of the housing corresponding to the fire extinguisher door 42 is used as a fire extinguisher storage space. As shown in FIG. Stored. The fire extinguisher door 42 can be opened forward with the left side as a pivot. Also, a viewing window 44 is provided below the fire extinguisher door 44 so that the presence or absence of the fire extinguisher can be confirmed from the outside.

  In this embodiment, in order to discharge water from the emergency awareness nozzle 14, a detection switch for detecting the opening of the door is provided on the fire hydrant door 30 and / or the fire extinguisher door 42 as necessary. In addition, the detection of the removal of the fire extinguisher 45 is performed by, for example, providing a detection switch in a portion where the fire extinguisher 45 is placed and operating by taking out the fire extinguisher.

  In FIG. 2B, a hose storage space is formed on the left side of the housing right side opening, and a valve storage space is formed on the right side. The hose storage space is provided with a hose bucket 46 that surrounds the hose 50 and presses the hose 50, and the hose 50 is housed in the hose storage space surrounded by the hose bucket 46 and the inner wall of the housing. The hose bucket 46 partitions and forms a hose outlet 48 at a position that is substantially in the center in the left-right direction of the door opening by the lattice-like frame arrangement.

  On the right side of the hose bucket 46, a nozzle 52 attached to the tip of the hose 50 drawn from the hose outlet 48 is detachably held sideways.

  In the valve storage space arranged on the right side of the hose storage space, a constant flow rate is provided behind the water supply valve 54 and the operation guide plate to the piping system from the fire hydrant connection port to which the piping 16 from the pump facility is connected to the hose connection port. A nozzle water discharge system including a valve, a fire hydrant valve, and a relief valve, and a conscious discharge water system for discharging water from an emergency conscious nozzle, which will be clarified later, are provided.

  A fire hydrant valve opening / closing lever 56 is provided for the fire hydrant valve, and opens and closes the fire hydrant valve disposed on the back side of the operation guide plate provided corresponding thereto. At the same time, the valve opening / closing detection switch installed behind the fire hydrant valve opening / closing lever 56 is turned on, whereby a pump activation signal is sent to the pump facility 20 via the disaster prevention receiving panel 18 of FIG. 1, and the pump facility is activated. The When stopping the water discharge, returning the hydrant valve opening / closing lever 56 to the original upward position closes the hydrant valve, and simultaneously turns off the valve opening / closing detection switch to stop the operation of the pump equipment.

  A pump start switch 58 is disposed in front of the water supply valve 54. The water supply valve 54 and the pump start switch 58 are devices operated by the fire brigade when the fire is extinguished. Even if the fire hydrant door 30 is opened, it is hidden by the maintenance door 32 and is not shown to the general user who wants to operate the fire hydrant device. , So as not to cause unnecessary confusion.

  In the present embodiment, the signal from the valve opening / closing detection switch and the pump activation switch 57 installed behind the fire hydrant valve opening / closing lever 55 can also be used as a control signal for performing conscious water discharge from the emergency conscious head.

  FIG. 3 is an explanatory view showing a first embodiment of a nozzle water discharge system and a cognitive water discharge system provided in the fire hydrant apparatus of the present invention. In FIG. 3, the nozzle discharge system adjusts the amount of water supplied to the hose with the nozzle to a predetermined first constant flow rate Q1, for example, Q1 = 130 [liter / min] on the branch side of the water supply pipe 60 with respect to the water supply valve 54. One constant flow valve 62 is arranged. Following the first constant flow valve 62, a fire hydrant valve 64 that is opened and closed by operating a fire hydrant valve opening / closing lever is disposed, and a hose connection pipe 66 is connected to the secondary side thereof. Between the hose connection pipe 66 and the drain pipe 68, there is disposed a relief valve 70 that opens to the drain side and lowers the pressure when the pressure at the time of nozzle discharge exceeds a predetermined set pressure. An automatic drain valve 71 is provided in parallel with the relief valve. During normal monitoring, the hose connection pipe 66 communicates with the drain pipe 68, and when the fire is extinguished, the communication with the drain pipe 68 is released by the pressure of water supplied into the pipe. .

  The operation of the nozzle discharge system is as follows. In the event of a fire, the fire hydrant door is opened, the hose with the nozzle is pulled out, and when the fire hydrant valve opening / closing lever is operated to the open position, the fire hydrant valve 64 is opened and the supply of pressurized fire-fighting water accompanying the pump activation is received from the water supply pipe 60. . At this time, the first constant flow valve 62 adjusts the flow rate so that the set first constant flow rate Q1 = 130 [liter / min], and can discharge the first constant flow rate Q1 from the nozzle.

Here, when clogging occurs on the nozzle or hose side due to dust or the like, the water for fire extinguishing becomes difficult to flow, so the discharge water flow rate decreases from the first constant flow rate Q1. That is, between the water discharge pressure P and the water discharge amount Q of the water for fire extinguishing in the water discharge system,
Q =
There is a relationship. K is a constant determined by the water discharge system including the first constant flow valve 62 and the hose with nozzle.

When the nozzle is clogged and the discharged water amount Q decreases from the first constant flow rate Q1, the first constant flow valve 62 operates so as to keep the discharged water amount Q at the first constant flow rate Q1 by increasing the discharged water pressure P.
However, when the water discharge pressure increased by the operation of the first constant flow valve 62 exceeds the relief set pressure of the relief valve 70, the relief valve 70 opens and functions as a safety valve that flows fire-extinguishing water through the drain pipe 68. The discharge pressure by the flow rate adjustment operation of the flow valve 62 is prevented from exceeding the relief set pressure. For this reason, the increase in the water discharge pressure due to the operation of the first constant flow valve 62 is limited to the relief set pressure, the increase in the reaction force received by the hose operator is suppressed, and the hose is prevented from being damaged.

  On the other hand, when there is a leak due to breakage of the hose or the piping system, the water discharge flow rate increases from the first constant flow rate Q1. When the water discharge amount Q increases from the first constant flow rate Q1 due to a hose leak, the first constant flow valve 62 operates to keep the water discharge amount Q at the first constant flow rate Q1 by reducing the water discharge pressure P. For this reason, since the water discharge pressure is reduced with respect to the hose leakage, the expansion of the leakage and the expansion of the damage of the hose can be suppressed.

  The nozzle water discharge system is provided with a nozzle water discharge inspection system including a check valve 72, an orifice 74, and a pressure sensor 76. In the nozzle discharge check system, a check valve 72 using a motorized valve is branched and connected to the primary side of the fire hydrant valve 64, and corresponds to the discharge amount of the hose with a nozzle between the secondary side of the check valve 72 and the drain pipe 68. An orifice 74 is provided that functions as a pseudo nozzle that allows the amount of inspection water to flow through the drain pipe 68.

  For example, the operation of the nozzle water discharge inspection system sends an inspection start signal to the control device 11 of the fire hydrant device 10 by operating the disaster prevention reception panel 18 shown in FIG. Open control is performed, and the fire-extinguishing water having the first constant flow rate Q 1 adjusted by the first constant flow valve 62 is passed through the orifice 74 to the drain pipe 68. The pseudo water discharge pressure generated by the orifice 74 being inspected is detected by the pressure sensor 76 and sent to the disaster prevention receiving panel 18 from the control device 11 as an inspection result to determine whether it is normal or abnormal by display or comparison with a predetermined threshold value. indicate.

  Next, the tactile discharge system will be described. In the sensed water discharge system, the emergency sense head 14 is connected to the tip of the head pipe 24 branched from the water supply pipe 60, and a plurality of units may be provided as shown by the dotted emergency sense head 14 as necessary. it can.

  The head pipe 24 is provided with a second constant flow valve 78 for adjusting the amount of water supplied to the emergency head 14 to a predetermined second constant flow Q2, for example, Q2 = 50 [liter / min]. On the secondary side of the second constant flow valve 78, an electric switching type three-way switching valve 80 having a function of a cognitive water discharge valve and a function of a check valve is disposed.

  The three-way switching valve 80 has a water supply port a to which pressurized fire-fighting water is supplied, a water discharge port b to which the emergency head 14 side is connected, and an inspection / drain port c to which the drain pipe 68 side is connected. Is switched to the normal position where the water in the head pipe 24 is drained by communicating with the inspection drainage port c, the water discharge position where the water supply port a communicates with the water discharge port b, and the inspection position where the water supply port a communicates with the inspection drainage port c. It is done. This communication switching can be achieved, for example, by rotating a ball valve having a T-shaped communication path.

  On the check drainage port c side of the three-way switching valve 80, an orifice 82 is provided that functions as a pseudo head for flowing a check water amount corresponding to the water discharge amount of the emergency awareness head 14 to the drainage side.

  The operation of the tactile discharge system is as follows. 1 controls the water supply port a from the normal position where the three-way switching valve 80 communicates with the water discharge port b and the inspection / drain port c during emergency operation in the tunnel such as detection of opening of a fire hydrant door. Switch to the water discharge position that communicates with

  For this reason, a constant second flow rate Q2 adjusted by the second constant flow valve 78 = 50 [liter / min] is supplied to the emergency awareness head 14, and the road 22 in the tunnel is discharged by the water discharge from the emergency awareness head 14. Form an emergency awareness pattern in the crossing direction, letting the driver of the vehicle entering the fire occurrence site know that there is an abnormality ahead, and stop braking reliably before the fire occurrence location Is possible.

  It should be noted that even when the tactile water discharge system is discharging water, fire extinguishing can be performed by the nozzle water discharge system, and the amount of water supplied from the water supply pipe 60 of the fire hydrant device as the water supply source can supply both systems at the same time. It is said.

  For example, the operation of the tactile water discharge inspection system sends an inspection start signal to the control device 11 of the fire hydrant device 10 by operating the disaster prevention reception panel 18 shown in FIG. 1, and the control device 11 inspects the three-way switching valve 80 in response to this. The water supply port a is communicated with the inspection / drainage port c by switching to the position, and the water for fire extinguishing at the second constant flow Q2 adjusted by the second constant flow valve 78 is passed through the drain 82 through the orifice 82.

  The pseudo tactile water discharge pressure by the orifice 82 being inspected is detected by the pressure sensor 84 and sent to the disaster prevention receiving panel 18 from the control device 11 as the inspection result of the tactile water discharge to confirm whether it is normal by display or comparison with a predetermined threshold value. Displays whether or not there is an abnormality.

  In addition, when the fire hydrant door is opened or a fire breaks out, the inspection operation of the cognitive water discharge system and the nozzle water discharge system is not allowed. If there is an emergency equipment operation such as fire detection during the inspection, the inspection will be terminated to prevent the fire awareness and fire fighting work from being hindered.

  The emergency head 14 may be built in the fire hydrant device 10. For example, the emergency head 14 may be attached to the maintenance door 22 shown in FIG. 2A, and the opening may be covered with a head cover that prevents dust from entering the head. The water discharge opening is formed at the position of the maintenance door 22 that is disposed behind the head 22 and is opposed to the head tip. The water discharge opening has a lid structure and is opened only during water discharge. Moreover, it is good also as a structure which the emergency awareness head 14 extends outside from the fire hydrant apparatus 10 only at the time of water discharge. Further, the water discharge pattern discharged from the emergency awareness head 14 is formed at an angle or orientation that does not interfere with the person operating the fire hydrant device 10.

  By incorporating the emergency awareness head 14 in the fire hydrant apparatus 10 in this way, installation and piping of the emergency awareness head on the exterior tunnel wall surface and the like are not required, and the installation work can be simplified and the cost can be reduced.

  In addition, although the three-way switching valve 80 is used for the operation switching of the tactile discharge system in FIG. 3, the present invention is not limited to this. For example, the secondary side of the pressure sensor 84 is provided with two branch pipes, and motorized valves are respectively provided. It is possible to control whether one of the motor-operated valves is opened or not, so that water is discharged from the emergency head 14 or connected to the drain pipe 68, or the two control valves are closed and switched to the normal state. good.

  In addition, the emergency awareness control by the awareness facility may be performed by using a plurality of fire hydrants instead of a single fire hydrant. Water may be discharged from a plurality of fire hydrants on the vehicle entry side rather than the position where the emergency facility is operated.

  FIG. 4 is an explanatory view showing an example of the first constant flow valve 62 used in the first embodiment of FIG. 3, and the second constant flow valve 78 is also the same. In FIG. 4, the first constant flow valve 62 has a valve body 136, an inflow port 138 is formed on the left side of the valve body 136, and an outflow port 140 is formed on the right side.

  On the inflow port 138 side, a piston 144 having a valve hole 145 is slidably incorporated by positioning by a stop ring 149, and a spring 146 is disposed between the spring holder 150 on the right side of the piston 144, and further, a spring. A spring 148 is disposed between the holder 150 and the needle holder 143 on the right side thereof. The tip of a needle 142 disposed on the right side of the valve hole 145 of the piston 144 is located, and the needle 142 is fixed to the valve body 136 by a needle holder 143.

  The operation of the first constant flow valve 62 in FIG. 4 is as follows. When the flow rate decreases due to nozzle clogging or the like, the pressure on the outflow port 140 side increases and the pressure on the inflow port 138 is relatively low, so the force pushing the piston 144 is small, and the pressing force on the springs 146 and 148 is low. The piston 144 moves to the side closer to the stopper ring 149 to increase the opening area between the tip of the needle 142 and the valve hole 145 and increase the flow rate flowing through the outflow port 140 to maintain a constant flow rate.

  Also, when the flow rate increases due to hose leakage or the like, the pressure on the outflow port 140 side decreases and the pressure on the inflow port 138 is relatively high, so the force pushing the piston 144 increases, resisting the springs 146 and 148. Then, the piston 144 moves to the right side, and the valve hole 145 approaches the needle 142, thereby reducing the opening area and decreasing the flow rate flowing through the outflow port 140 to maintain a constant flow rate.

  FIG. 5 is an explanatory view showing another example of the first constant flow valve 62 used in the first embodiment of FIG. 3. In this example, the needle side is moved according to the primary pressure. The same applies to the second constant flow valve 78.

  In FIG. 5, the first constant flow valve 162 has an inflow port 152 on the left side of the valve body 151 and an outflow port 154 on the right side, and a needle 156 positioned by a stopper ring 158 is slidably incorporated therein. A spring 162 is disposed on the right side of the needle 156. A communication hole 160 is provided in the needle 156, and a valve hole 164 is formed in the valve body 151 on the distal end side of the needle 156.

  The operation of the first constant flow valve 62 in FIG. 5 is as follows. When the flow rate decreases due to nozzle clogging or the like, the pressure on the outflow port 154 side rises and the pressure on the inflow port 152 is relatively low, so the force to push the needle 156 to the right is weak, and the needle 156 passes through the valve hole 164. Moving to a distant position, the opening area that becomes a gap between the valve hole 164 and the needle 156 is increased, and the flow rate that flows through the outflow port 154 is increased to maintain a constant flow rate.

  In addition, when the flow rate increases due to hose leakage or the like, the pressure on the outflow port 154 side decreases and the pressure on the inflow port 152 is relatively high, so the spring 162 is compressed and the needle 156 moves to the right side, The opening area between the valve hole 164 is reduced, the flow rate flowing to the outflow port 140 is decreased, and a constant flow rate is maintained.

  FIG. 6 is an explanatory view showing another example of the first constant flow valve 62 used in the first embodiment of FIG. 3, and the constant flow control is performed by utilizing the deformation of the rubber flow washer. The second constant flow valve 78 can be similarly employed.

  6A, the first constant flow valve 62 has an inflow port 168 on the left side of the valve body 166 and an outflow port 170 on the right side. A valve hole 176 is opened inside the valve body 166, and a flow washer 172 made of elastic rubber that is prevented from coming off by a stopper ring 175 is incorporated on the left side of the valve hole 176. The flow washer 172 is a donut-shaped member and has a valve hole 174 opened therein.

  The operation of the first constant flow valve 62 in FIG. 6 is as follows. When the flow rate decreases due to nozzle clogging or the like, the pressure on the outflow port 170 side rises and the pressure on the inflow port 168 is relatively low, so the force pushing the flow washer 172 as shown in FIG. The flow rate of the flow washer 172 is reduced, and the opening area determined by the valve hole 174 at that time is increased, so that the flow rate flowing to the outflow port 170 is increased to maintain a constant flow rate.

  When the flow rate increases due to hose leakage or the like, the pressure on the outflow port 170 side decreases and the pressure on the inflow port 168 is relatively high, so the flow washer 172 is pushed as shown in FIG. As the force increases, the flow washer 172 deforms into a conical shape that constricts the valve hole 174, and the opening area of the valve hole 174 decreases. As a result, the flow rate flowing through the outflow port 170 is decreased to maintain a constant flow rate.

  Of course, as the constant flow valve used in the embodiment of FIG. 3, a constant flow valve having an appropriate structure other than those shown in FIGS. 4 to 6 can be used.

  Next, an emergency sense pattern by the emergency sense head of this embodiment will be described with reference to FIGS.

  FIGS. 7A and 7B are explanatory views showing lateral water discharge by the stick-like pattern of the emergency head, FIG. 7A shows a tunnel cross section, and FIG. 7B shows a tunnel plane.

  In FIG. 7, the emergency awareness head 14 discharges water with a bar-like pattern 15 in order to minimize the amount of water discharge necessary for awareness. In this embodiment, the emergency cross section 14 has a tunnel cross section in FIG. As shown in FIG. 7B, water is discharged from the emergency head 14 on the side wall of the tunnel connected to the head pipe 24 from the fire hydrant apparatus 10 in the direction of right across the road with a bar-like pattern 15 and shown in the tunnel plane of FIG. In addition, the rod-like pattern 15 is discharged in a direction transversely to the running direction.

  By such horizontal discharge of the bar-shaped pattern 15, a vehicle traveling in the tunnel 12 can recognize the occurrence of an abnormal situation by seeing the water discharge by the bar-shaped pattern 15 that crosses the road in the traveling direction, and does not notice the discharge. By receiving water discharge across the side of the vehicle body, it is possible to recognize the occurrence of an abnormal situation.

  In addition, a smoke layer is formed in the upper part of the tunnel due to the occurrence of a fire. However, since the rod-shaped pattern 15 from the emergency awareness head 14 is lateral water discharge at a position close to the road surface of the road 22, the smoke layer is disturbed by the water discharge. Smoke does not spread throughout.

  Furthermore, since the fire-fighting water discharged in a rod shape is discharged to the opposite wall surface of the tunnel, it is drained to a drain outlet provided below the wall surface, so it does not stay on the road, so secondary vehicles such as slipping It is also possible to prevent disasters as much as possible.

  The height of the bar-shaped pattern 15 is not particularly limited. However, when the height is set to be slightly higher than the height of a general vehicle, fire-fighting water is not applied to the passing vehicle, which hinders the driver's view. The driver can be aware of the emergency situation. Even if the water discharge is applied to the vehicle, because of the rod-like water discharge, the visual field is hardly obstructed and the emergency state can be recognized.

  FIG. 8 is an explanatory view showing oblique water discharge by the rod-like pattern of the emergency head. In this embodiment, as shown in the tunnel cross section of FIG. 8 (A), the rod-shaped pattern 15 from the emergency head 14 on the side wall of the tunnel connected to the head pipe 24 from the fire hydrant device 10 crosses the road. As shown in the tunnel plane of FIG. 8B, the rod-shaped pattern 15 is discharged in an oblique direction with respect to the traveling direction.

  Due to the oblique water discharge of the rod-shaped pattern 15, the vehicle traveling in the tunnel 12 crosses obliquely from the traveling direction, so that the occurrence of an abnormal situation is noticed by seeing the water discharge by the rod-shaped pattern 15, and the water discharge is not noticed. In both cases, it is possible to recognize the occurrence of an abnormal situation by receiving water discharge obliquely across the vehicle body.

  In addition, a smoke layer is formed in the upper part of the tunnel due to the occurrence of a fire. However, since the rod-shaped pattern 15 from the emergency head 14 is an oblique water discharge near the road surface of the road 22, the smoke layer is disturbed by the water discharge and the tunnel is disturbed. Smoke does not spread throughout.

  FIG. 9 is an explanatory view showing cross water discharge by a bar-shaped pattern in an embodiment in which an emergency head is arranged in a tunnel.

  9A, the emergency head 14 connected to the head pipe 24 from the fire hydrant device 10 is disposed on the side wall of the tunnel 12 in the tunnel cross section of FIG. Piping, the emergency heads 14 are arranged there, and the bar pattern 15 is discharged from the emergency heads 14 installed on the side walls on both sides of the tunnel in a direction crossing the road. As shown in the tunnel plane, cross-water discharge is performed by discharging the rod-shaped pattern 15 obliquely in the traveling direction from the emergency heads 14 arranged on both sides.

  By such two cross water discharges of the bar-shaped pattern 15, the vehicle traveling in the tunnel notices the occurrence of an abnormal situation by seeing the water discharge by the bar-shaped pattern 15 that crosses and crosses in the traveling direction, and discharges water. Even if you do not notice, you can be aware of the occurrence of an abnormal situation by receiving water discharge diagonally across the car body.

  In addition, if cross water discharge is performed simultaneously from the emergency heads 14 provided in the plurality of fire hydrant devices 10 arranged at predetermined intervals in the tunnel traveling direction, a plurality of cross water discharge patterns emerge in front of the tunnel, and an abnormal situation occurs. You can be sure. Moreover, since the cross water discharge becomes a water discharge near the road surface, the smoke layer formed at the upper part of the tunnel is not disturbed.

  Further, it is possible to prevent the driver's view from being obstructed even in cross water discharge.

  FIG. 10 is an explanatory diagram showing multi-water discharge by a bar-shaped pattern in an embodiment in which a plurality of emergency detection heads are arranged, and an example in which three emergency detection heads are provided.

  10A, three emergency heads 14 connected to the head pipe 24 from the fire hydrant device 10 are arranged on the side wall of the tunnel 12, and the bar pattern 15 is discharged in the direction crossing the road 22. is doing. Further, in the tunnel plane of FIG. 10B, the multi-water discharge is performed from the three emergency sensing heads 14 in the direction transverse to the side and in different oblique directions.

  By the multi-water discharge using such a bar-shaped pattern 15, a vehicle traveling in the tunnel can recognize the occurrence of an abnormal situation by watching the water discharge by the bar-shaped pattern 15. It is easier to notice by water discharge than a single water discharge pattern. If the pattern position is set so that the vehicle body receives the water discharge even if the water discharge is not noticed, the occurrence of an abnormal situation can be recognized by the sound and water droplets received by the vehicle body. Moreover, if the water is discharged near the road surface, the smoke layer formed at the upper part of the tunnel will not be disturbed. Even if a water discharge pattern is formed in the smoke layer, it is a rod-shaped pattern, so there is not enough power to disturb the smoke layer.

  FIG. 11 is an explanatory view showing another embodiment of multi-water discharge by a bar-like pattern in which a plurality of emergency detection heads are arranged, and takes an example where three emergency detection heads are provided.

  In the present embodiment, the tunnel cross section of FIG. 11 (A) is also multi-directional from the three emergency detection heads 14 connected to the head piping 24 from the fire hydrant device 10 in a direction transversely across the road 22 and in different oblique directions. The water is discharged. In addition, on the tunnel plane shown in FIG. 11B, the bar pattern 15 is discharged from the three emergency sensing heads 14 in a direction transverse to the side and in different oblique directions.

  By such multi-water discharge using the bar-shaped pattern 15, a vehicle traveling in the tunnel recognizes the occurrence of an abnormal situation by watching the water discharged by the bar-shaped pattern 15 and receives the water discharge even if the water discharge is not noticed. Thus, the occurrence of an abnormal situation can be known.

  In addition, the water discharge by the rod-shaped pattern of the emergency head 14 shown in FIGS. 7 to 11 is an upward water discharge within a range that does not disturb the smoke layer above the tunnel other than the horizontal water discharge, and a multi-water discharge from a plurality of emergency heads. Can be made into an appropriate water discharge pattern such as cross water discharge.

  FIG. 12 is an explanatory view showing a second embodiment of the nozzle water discharge system and the cognitive water discharge system provided in the fire hydrant apparatus of the present invention. In FIG. 12, the nozzle water discharge system and the cognitive water discharge system of the present embodiment are the same as those of the first embodiment of FIG. 3, and the nozzle water discharge check system and the cognitive water discharge check system are basically the same as the embodiment of FIG. Although it is the same, it is characterized by sharing the pressure sensor of the nozzle discharge check system and the tactile discharge check system.

  That is, in the present embodiment, the pressure sensor 86 for detecting the water discharge pressure at the time of inspection is switched between the nozzle water discharge inspection system and the tactile water discharge inspection system by the sensor switching valve 88 using an electric switching type three-way switching valve. Arranged to be selectable. At the time of inspection of the nozzle water discharge system, the sensor switching valve 88 is switched so that the primary side of the water discharge valve 72 communicates with the pressure sensor 86, and at the time of inspection of the tactile discharge system, the primary side of the second constant flow valve 78 is switched. Is switched to communicate with the pressure sensor 86.

  As a result, a single pressure sensor can be used for checking the nozzle water discharge system and the tactile water discharge system, and the configuration including the transmission of the detection signal to the disaster prevention receiver 18 shown in FIG. 1 can be simplified. it can.

  FIG. 13 is an explanatory view showing a third embodiment of the nozzle water discharge system and the cognitive water discharge system provided in the fire hydrant apparatus of the present invention. In FIG. 13, the nozzle water discharge system and the cognitive water discharge system of the present embodiment are basically the same as those of the first embodiment of FIG. 3, and the nozzle water discharge check system and the cognitive water discharge check system are the same as those of the embodiment of FIG. Although it is basically the same, a flow meter is provided in place of the pressure sensor used when checking the nozzle water discharge system and the cognitive water discharge system.

  That is, in this embodiment, the flow meter 90 is provided in the water supply pipe 60, and the pressure sensor is not provided in the nozzle water discharge check system and the tactile water discharge check system. As a result, when checking the nozzle water discharge system and the cognitive water discharge system, the inspection flow rate by the flow meter 60 is detected and sent to the disaster prevention reception panel 18 side of FIG. 1 to determine whether it is normal or abnormal by display or comparison with a predetermined threshold value. Can be displayed.

  FIG. 14 is an explanatory diagram showing a fourth embodiment of the nozzle water discharge system and the cognitive water discharge system provided in the fire hydrant apparatus of the present invention. In FIG. 14, a third constant flow valve 75 is provided at a branch portion from the water supply pipe 60 to the water supply valve 54. In the present embodiment, the third constant flow valve 75 has a nozzle water discharge amount Q1, for example, Q1 = 130 [liter / A predetermined third water discharge amount Q3 (= Q1 + Q2), for example, Q3 = 180 [liter / minute], which is obtained by adding the conscious discharge amount Q2 of the emergency awareness head 14 to, for example, Q2 = 50 [liter / minute]. Adjust as follows.

  A fire hydrant valve 64 is arranged after the third constant flow valve 75, and a hose connection pipe 66 is connected to the secondary side thereof. Between the secondary hose connection 66 of the fire hydrant valve 64 and the drain pipe 68, there is a relief valve 70 that opens to the drain side and lowers the pressure when the pressure at the time of nozzle discharge exceeds a predetermined set pressure. Has been.

  The nozzle water discharge system is provided with a nozzle water discharge inspection system including a check valve 72, an orifice 74, and a pressure sensor 76, and the check valve 72 using an electric valve is branched and connected to the primary side of the fire hydrant valve 64. Between the secondary side of 72 and the drain pipe 68, an orifice 74 is provided which functions as a pseudo nozzle for flowing an inspection water amount corresponding to the water discharge amount of the hose with nozzle to the drain pipe.

  Next, the tactile discharge system will be described. The tactile discharge system branches the head pipe 24 from the secondary side of the third constant flow valve 75 and connects the emergency head 14 to the tip, and supplies the head pipe 24 to the emergency head 14. A second constant flow valve 78 for adjusting the amount of water to a predetermined second constant flow Q2, for example, Q2 = 50 [liter / min] is disposed. On the secondary side of the second constant flow valve 78, an electric switching type three-way switching valve 80 having a function of a cognitive water discharge valve and a function of a check valve is disposed.

  The three-way switching valve 80 has a water supply port a to which pressurized fire-fighting water is supplied, a water discharge port b to which the emergency head 14 side is connected, and an inspection / drain port c to which the drain pipe 68 side is connected. Is switched to a normal position communicating with the inspection drainage port c, a water discharge position communicating with the water supply port a with the water discharge port b, and an inspection position communicating with the water supply port a with the inspection drainage port c. On the check drainage port c side of the three-way switching valve 80, an orifice 82 is provided that functions as a pseudo head for flowing a check water amount corresponding to the water discharge amount of the emergency awareness head 14 to the drainage side.

  Next, the water discharge operation of this embodiment will be described. In this embodiment, nozzle water discharge and cognitive water discharge are performed simultaneously. In the event of a fire, the fire hydrant door is opened, the hose with the nozzle is pulled out, and when the fire hydrant valve opening / closing lever is operated to the open position, the fire hydrant valve 64 is opened and the supply of pressurized fire-fighting water accompanying the pump activation is received from the water supply pipe 60. .

  At the same time, the control device 11 shown in FIG. 1 opens the water supply port a from the normal position where the three-way switching valve 80 communicates with the water discharge port b and the inspection water discharge port c during emergency operation in the tunnel such as detection of opening of a hydrant door. Switch to the water discharge position communicating with b. The switching of the three-way switching valve 80 may be interlocked with turning on a valve opening / closing detection switch that is operated by operating the fire hydrant valve opening / closing lever to the open position.

Therefore, the third constant flow valve 75 adjusts the flow rate so that a third constant flow rate Q3, for example, Q3 = 180 [liter / min] flows, and the third water discharge amount Q3 adjusted by the third constant flow valve 75 is the fire hydrant valve. The flow is divided into the 64 side and the second constant flow valve 78 side. Here, since the second constant flow valve 78 adjusts the flow rate so that the second constant flow rate Q2 = 50 [liter / min] flows, the third constant flow rate Q3 to the second constant flow rate Q2 are supplied to the fire hydrant valve 64 side. Subtracted first constant flow rate Q1, that is, Q1 = Q3-Q2 = 130 [liter / min]
Flows and is discharged from the nozzle through the hose.

  Moreover, although the structure of the nozzle discharge check system and the cognitive discharge check system in the present embodiment is the same as that of the first embodiment of FIG. 3, the check valve 72 of the nozzle discharge check system is controlled to open and switched three-way during the check. The valve 80 is switched to the inspection position where the water supply port a communicates with the inspection / drainage port c, the nozzle water discharge inspection for flowing the first constant flow Q1 = (Q3-Q2) through the orifice 74, and the second constant flow Q2 through the orifice 82. Perform a tactile discharge check at the same time. Since the pressure sensors 74 and 78 have the same pressure during inspection, only one of the pressure sensors 78 may be provided.

  FIG. 15 is an explanatory view showing a fifth embodiment of the nozzle water discharge system and the cognitive water discharge system provided in the fire hydrant apparatus of the present invention. In FIG. 15, the nozzle water discharge system and the cognitive water discharge system of this embodiment are basically the same as those of the fourth embodiment of FIG. Although it is basically the same, a flow meter is provided in place of the pressure sensor used when checking the nozzle water discharge system and the cognitive water discharge system.

  That is, in this embodiment, the flow meter 90 is provided in the water supply pipe 60, and the pressure sensor is not provided in the nozzle water discharge check system and the tactile water discharge check system. As a result, when checking the nozzle water discharge system and the cognitive water discharge system, the inspection flow rate by the flow meter 60 is detected and sent to the disaster prevention reception panel 18 side of FIG. 1 to display or compare with a predetermined threshold value to determine whether it is normal or abnormal. Judgment display is possible.

  FIG. 16 is an explanatory view showing a sixth embodiment of the nozzle water discharge system and the cognitive water discharge system provided in the fire hydrant apparatus of the present invention. In this embodiment, the nozzle water discharge system and the cognitive water discharge system are released. The quantity of water is simplified by adjusting it with one constant flow valve.

  In FIG. 16, a third constant flow valve 75 that adjusts to a third constant flow Q3 corresponding to the total water discharge amount of the nozzle water discharge system and the cognitive water discharge system is provided at a branch portion from the water supply pipe 60 to the water supply valve 54. . Here, assuming that the amount of water discharged from the nozzle is Q1 = 130 [liters / minute] and the amount of water discharged from the emergency head 14 is Q2 = 50 [liters / minute], the third constant flow valve 75 has a third constant flow rate Q3. = Adjust the flow rate so that 180 [liter / min] flows.

  A fire hydrant valve 64 is provided following the third constant flow valve 75, a hose connection pipe 66 is connected to the secondary side of the fire hydrant valve 64, the head pipe 24 is branched and connected there, and an emergency head directly at the tip. 14 is connected. In addition, a relief valve 70 is provided between the secondary hose connection 66 and the drain pipe 68 of the fire hydrant valve 64 and opens to the drain side to reduce the pressure when the pressure at the time of nozzle discharge exceeds a predetermined set pressure. Is arranged.

  The operation of this embodiment is as follows. In the event of a fire, the fire hydrant door is opened, the hose with the nozzle is pulled out, and when the fire hydrant valve opening / closing lever is operated to the open position, the fire hydrant valve 64 is opened and the supply of pressurized fire-fighting water accompanying the pump activation is received from the water supply pipe 60. . At this time, the third constant flow valve 62 adjusts the flow rate so that the set third flow rate Q3 = 180 [liter / min] flows.

  The fire-fighting water adjusted to the third constant flow rate Q3 by the third constant flow valve 75 is branched to the hose pipe 66 and the head pipe 24 on the secondary side of the hydrant valve 64. Q1 = 130 [liters / minute] flows through the nozzle and water is discharged from the nozzle, and Q2 = 50 [liters / minute] flows through the head pipe 24, so that the conscious water discharge is performed from the emergency head 14.

  The nozzle water discharge system is provided with a nozzle water discharge inspection system including a check valve 72, an orifice 74, and a pressure sensor 76. In the nozzle discharge check system, a check valve 72 using an electric valve is branched and connected to the primary side of the fire hydrant valve 64, and a hose with a nozzle and an emergency head are connected between the secondary side of the check valve 72 and the drain pipe 68. There is provided an orifice 74 that functions as a pseudo nozzle for flowing a check water amount corresponding to a total water discharge amount Q3 of 14 to the drain pipe.

  For example, the operation of the nozzle water discharge inspection system sends an inspection start signal to the control device 11 of the fire hydrant device 10 by operating the disaster prevention reception panel 18 shown in FIG. 1, and the control device 11 opens the inspection valve 72 in response to this. The fire extinguishing water having the third constant flow Q3 adjusted by the third constant flow valve 62 is passed through the orifice 74 to the drain pipe 68.

  The pseudo water discharge pressure from the orifice 74 under inspection is detected by the pressure sensor 76, and the inspection result is sent from the control device 11 to the disaster prevention receiving panel 18, and is displayed or compared with a predetermined threshold value to determine whether it is normal or abnormal. . As a result, the nozzle water discharge and the cognitive head water discharge can be substantially simultaneously checked.

  FIG. 17 is an explanatory view showing a seventh embodiment of the nozzle water discharge system and the cognitive water discharge system provided in the fire hydrant device of the present invention, and the arrangement of the constant flow valves corresponds to the first embodiment of FIG. . In FIG. 17, the nozzle water discharge system includes a first constant flow rate 62 for adjusting the amount of water supplied to the nozzle-equipped hose to a predetermined first constant flow rate Q1, for example, Q1 = 130 [liter / min], and a first constant flow valve 62. A water supply pipe 60 from the pump facility is connected to

  A fire hydrant valve 64 is arranged after the first constant flow valve 62, and a hose connection pipe 66 is connected to the secondary side thereof. Between the secondary hose connection 66 of the fire hydrant valve 64 and the drain pipe 68, there is a relief valve 70 that opens to the drain side and lowers the pressure when the pressure at the time of nozzle discharge exceeds a predetermined set pressure. Has been.

  The operation of the nozzle discharge system is as follows. In the event of a fire, the fire hydrant door is opened, the hose with the nozzle is pulled out, and when the fire hydrant valve opening / closing lever is operated to the open position, the fire hydrant valve 64 is opened and the supply of pressurized fire-fighting water accompanying the pump activation is received from the water supply pipe 60. . At this time, the first constant flow valve 62 can adjust the flow rate so as to flow the set constant first flow rate Q1, and can discharge the constant flow rate Q1 from the nozzle. This nozzle water discharge system is the same as that of the first embodiment of FIG. In this embodiment, the nozzle water discharge inspection system is not provided, but may be provided in the same manner as the first embodiment in FIG.

  In the knotting water discharge system, a knotting water discharge valve 96 is arranged in the head pipe 24 branched from the water supply main 60 to the water supply valve 54, and subsequently the amount of water supplied to the emergency knotting head 14 is set to a predetermined second constant flow rate Q2. For example, a second constant flow valve 78 for adjusting Q2 = 50 [liter / min] is disposed. A pressure switch 100 is disposed on the secondary side of the second constant flow valve 78 to detect the pressure due to the tactile discharge.

  An automatic drain valve 98 is disposed between the secondary side of the second constant flow valve 78 and the drain pipe 68. The automatic drain valve 98 is in the open position during normal times when pressurized fire-extinguishing water is not supplied, and the water in the head pipe 24 is drained to the drain pipe 68. Further, when the automatic drain valve 98 is supplied with pressurized fire-extinguishing water, the automatic drain valve 98 moves to the closed position, and enables the supply of pressurized fire-extinguishing water to the emergency head 14.

  By providing the automatic drain valve 98 in this way, it is not necessary to switch between the normal position and the cognitive water discharge position by the three-way switching valve 80 in the first embodiment of FIG. 3, and the configuration can be simplified.

  When the operation of the emergency water discharge system is detected by the control device 11 shown in FIG. 1 such as detecting the opening of a fire hydrant door, the operation of the knotting water discharge system is controlled to open the second water flow. Fire extinguishing water having a second flow rate Q2 = 50 [liter / min] adjusted by the valve 78 is supplied to the emergency awareness head 14 side. At this time, the automatic drain valve 98 is closed and discharged from the emergency awareness head 14. To form an emergency awareness pattern.

  In addition, the pressure switch 100 is turned on along with water discharge from the emergency awareness head 14, and a signal is sent to the disaster prevention receiver 18 shown in FIG.

  FIG. 18 is an explanatory view showing an eighth embodiment of the nozzle water discharge system and the cognitive water discharge system provided in the fire hydrant device of the present invention, and the arrangement of the constant flow valves corresponds to the fourth embodiment of FIG. .

  In FIG. 18, a third constant flow valve 75 is provided at a branch portion from the water supply pipe 60 to the water supply valve 54, and the third constant flow valve 75 has an extremely large nozzle water discharge amount Q1, for example, Q1 = 130 [liter / min]. It adjusts to a predetermined third constant flow rate Q3 (= Q1 + Q2), for example, Q3 = 180 [liters / minute], which is obtained by adding a known water discharge amount Q2, for example, Q2 = 50 [liters / minute].

  A fire hydrant valve 64 is arranged after the third constant flow valve 75, and a hose connection pipe 66 is connected to the secondary side thereof. A pressure during nozzle discharge is predetermined between the hose connection 66 and the drain pipe 68. A relief valve 70 is provided that opens to the drain side to reduce the pressure when the set pressure is exceeded.

  The tactile water discharge system is the same as that of the seventh embodiment of FIG. 17. First, the tactile water discharge valve 96 is disposed in the head pipe 24 branched from the secondary side of the third constant flow valve 75, and then emergency notification A second constant flow valve 78 for adjusting the amount of water supplied to the head 14 to a predetermined second constant flow rate Q2, for example, Q2 = 50 [liters / minute] is disposed, and a pressure is provided on the secondary side of the second constant flow valve 78. A switch 100 is disposed, and an automatic drain valve 98 is disposed between the secondary side of the second constant flow valve 78 and the drain pipe 68.

  By providing the automatic drain valve 98 in this way, it is not necessary to switch between the normal position and the cognitive water discharge position by the three-way switching valve 80 in the first embodiment of FIG. 3, and the configuration can be simplified. .

  In the present embodiment, the nozzle water discharge and the tactile water discharge are performed simultaneously as in the fourth embodiment of FIG. In the event of a fire, the fire hydrant door is opened, the hose with the nozzle is pulled out, and when the fire hydrant valve opening / closing lever is operated to the open position, the fire hydrant valve 64 is opened and the supply of pressurized fire-fighting water accompanying the pump activation is received from the water supply pipe 60. .

  At the same time, the control device 11 shown in FIG. 1 controls the opening of the conscious water discharge valve 96 at the time of emergency equipment operation in the tunnel such as detection of opening of a hydrant door. Note that the opening control of the cognitive water discharge valve 96 may be interlocked with turning on a valve opening / closing detection switch that is operated by operating the fire hydrant valve opening / closing lever to the open position.

When the awareness water discharge valve 96 is controlled to open, the third constant flow valve 75 adjusts the flow rate so that a third constant flow rate Q3, for example, Q3 = 180 [liters / minute] flows, and the third constant flow valve 75 adjusts the flow rate. The pressurized fire-extinguishing water is diverted to the hydrant valve 64 side and the second constant flow valve 78 side. Here, since the second constant flow valve 78 is adjusted to flow the second constant flow Q2 = 50 [liter / min], the second constant flow Q2 is subtracted from the third constant flow Q3 on the fire hydrant valve 64 side. The first constant flow rate Q1, that is, Q3-Q2 = Q1 = 130 [liter / min]
Flows and is discharged from the nozzle through the hose.

  In the above embodiment, the case where the rod-like pattern is discharged from the emergency head is taken as an example, but in addition to this, an appropriate emergency notification pattern such as a slit pattern or a drop pattern is discharged. It is possible to prevent the occurrence of a secondary disaster without obstructing the driver's view.

  Moreover, although said embodiment has taken the case where the emergency sense pattern is discharged continuously as an example, you may make it discharge an emergency sense pattern intermittently or periodically. By such intermittent or periodic conscious discharge, the conscious function can be enhanced and the discharge amount can be reduced. In addition, the driver's view can be prevented. It is possible to prevent the road surface from getting wet more than necessary.

  Further, the awareness function may be enhanced by moving the emergency awareness head to perform swing water discharge or turning water discharge. The tactile discharge may further enhance the cognitive function by emitting laser light to the passage side.

The present invention includes appropriate modifications without impairing the object and advantages thereof, and is not limited by the numerical values shown in the above embodiments.

10: Fire hydrant device 11: Control device 12: Tunnel 14: Emergency notification head 15: Bar pattern 24: Head pipe 25: Water discharge opening 26: Housing 60: Water supply pipe 62: First constant flow valve 64: Fire hydrant valve 66: Hose connection pipe 68: Drain pipe 70: Relief valve 72: Nozzle discharge check valve 74, 82: Orifice 75: Third constant flow valve 76, 84, 86: Pressure sensor 78: Second constant flow valve 80: Three-way switching valve 88 : Sensor switching valve 90: Flow meter 92: Constant flow valve 96: Aware discharge valve 98: Automatic drain valve 100: Pressure switch 138, 152, 168: Inflow port 140, 154, 170: Outflow port 142, 156: Needle 143 : Needle holder 144: Pistons 145, 164, 174, 176: Valve holes 146, 148, 162: Spring 150: Spring holder 1 0: communication hole 178: the communication hole 180: constant flow valve body

Claims (22)

In a fire hydrant device that is installed in a tunnel and draws a hose with a nozzle to discharge water,
A nozzle water discharge system provided with a constant flow valve for supplying and discharging pressurized fire-fighting water to the hose with nozzle;
An emergency head that discharges water into the tunnel to form an emergency pattern,
A tactile water discharge system that supplies pressure fire extinguishing water to the emergency tactile head to make the tactile water discharge,
A fire hydrant device characterized by comprising:
2. The fire hydrant device according to claim 1, further comprising a control device for opening the valve device provided in the conscious water discharge system to discharge water from the emergency conscious head when an emergency facility is operated in the tunnel. A fire hydrant device.
In the fire hydrant device according to claim 1,
The nozzle discharge system is
A first constant flow valve that is connected to a water supply pipe from the pump facility and adjusts the amount of water supplied to the nozzle-equipped hose to a predetermined first constant flow rate;
A fire hydrant valve disposed on the secondary side of the first constant flow valve and opened and closed by operation of a fire hydrant valve opening and closing lever;
A relief valve that is disposed on the secondary side of the fire hydrant valve and opens to the drain side to reduce the pressure when the pressure at the time of nozzle discharge exceeds a predetermined set pressure;
With
The tactile water discharge system is
A second constant flow valve that is branchedly connected to the water supply pipe and adjusts the amount of water supplied to the emergency awareness head to a predetermined second constant flow rate;
An emergency sensation water discharge valve which is arranged on the secondary side of the second constant flow valve and is controlled to be opened when an emergency facility is operated in a tunnel to cause conscious water discharge from the emergency conscious head;
With
A fire hydrant apparatus, wherein the fire-fighting water adjusted to the first constant flow rate is supplied to the hose with nozzle and the fire-fighting water adjusted to the second constant flow rate is supplied to the emergency head.
In the fire hydrant device according to claim 1,
The nozzle discharge system is
A third constant flow valve that is connected to a water supply pipe from the pump facility and adjusts to a predetermined third constant flow rate that is a total water amount for the hose with the nozzle and the emergency notification nozzle;
A fire hydrant valve disposed on the secondary side of the third constant flow valve and opened and closed by operation of a fire hydrant valve opening and closing lever;
A relief valve that is disposed on the secondary side of the fire hydrant valve and opens to the drain side to reduce the pressure when the pressure at the time of nozzle discharge exceeds a predetermined set pressure;
With
The tactile water discharge system is
A second constant flow valve that is branched and connected to the secondary side of the third constant flow valve and adjusts the amount of water supplied to the emergency head to a predetermined second constant flow rate;
An emergency sensation water discharge valve disposed on the secondary side of the second constant flow valve, controlled to open in conjunction with an opening operation of the fire hydrant valve opening / closing lever, and causing conscious water discharge from the emergency conscious head;
With
Supply the fire extinguishing water adjusted to the constant flow rate obtained by subtracting the second constant flow rate from the third constant flow rate to the hose with nozzle, and supply the fire extinguishing water adjusted to the second constant flow rate to the emergency head. A fire hydrant device characterized by that.
In the fire hydrant device according to claim 1,
The nozzle discharge system is
A third constant flow valve that is connected to a water supply pipe from the pump facility and adjusts to a predetermined third constant flow rate that is a total water amount for the hose with the nozzle and the emergency notification nozzle;
A fire hydrant valve disposed on the secondary side of the third constant flow valve and opened and closed by operation of a fire hydrant valve opening and closing lever;
A relief valve that is disposed on the secondary side of the fire hydrant valve and opens to the drain side to reduce the pressure when the pressure at the time of nozzle discharge exceeds a predetermined set pressure;
With
The tactile water discharge system is a tactile water supply pipe branched from the secondary side of the fire hydrant valve and connected to the emergency knot head,
A fire hydrant apparatus, wherein the fire-fighting water adjusted to the third constant flow rate is branched and supplied to the nozzle-equipped hose and the emergency head.
In the fire hydrant device according to claim 1,
The nozzle discharge system is
A first constant flow valve connected to a water supply pipe from a pump facility and adjusted to a predetermined first constant flow rate supplied to the nozzle-equipped hose;
A fire hydrant valve disposed on the secondary side of the first constant flow valve and opened and closed by operation of a fire hydrant valve opening and closing lever;
A relief valve that is disposed on the secondary side of the fire hydrant valve and opens to the drain side to reduce the pressure when the pressure at the time of nozzle discharge exceeds a predetermined set pressure;
With
The tactile water discharge system is
An emergency discharge valve that is branched and connected to the water supply pipe and is controlled to be opened when an emergency facility is operated in the tunnel;
A second constant flow valve which is arranged on the secondary side of the emergency notification water discharge valve and adjusts the amount of water supplied to the emergency notification head to a predetermined second constant flow rate;
An automatic drain valve that is disposed on the secondary side of the second constant flow valve, closes when the fire-extinguishing water is supplied, opens when the fire-extinguishing water supply is stopped, and drains the fire-extinguishing water in the pipe that reaches the emergency head. ,
With
A fire hydrant apparatus, wherein the fire-fighting water adjusted to the first constant flow rate is supplied to the hose with nozzle and the fire-fighting water adjusted to the second constant flow rate is supplied to the emergency head.
In the fire hydrant device according to claim 1,
The nozzle discharge system is
A third constant flow valve that is connected to a water supply pipe from the pump equipment and adjusts to a predetermined third constant flow rate that is a total amount of water supplied to the hose with the nozzle and the emergency notification nozzle;
A fire hydrant valve disposed on the secondary side of the third constant flow valve and opened and closed by operation of a fire hydrant valve opening and closing lever;
A relief valve that is disposed on the secondary side of the fire hydrant valve and opens to the drain side to reduce the pressure when the pressure at the time of nozzle discharge exceeds a predetermined set pressure;
With
The tactile water discharge system is
An emergency water discharge valve that is branched and connected to the secondary side of the third constant flow valve and is controlled to be opened when an emergency facility is operated in the tunnel;
A second constant flow valve which is arranged on the secondary side of the emergency notification water discharge valve and adjusts the amount of water supplied to the emergency notification head to a predetermined second constant flow rate;
An automatic drain valve that is disposed on the secondary side of the second constant flow valve, closes when the fire-extinguishing water is supplied, opens when the fire-extinguishing water supply is stopped, and drains the fire-extinguishing water in the pipe that reaches the emergency head. ,
With
Supply the fire extinguishing water adjusted to the constant flow rate obtained by subtracting the second constant flow rate from the third constant flow rate to the hose with nozzle, and supply the fire extinguishing water adjusted to the second constant flow rate to the emergency head. A fire hydrant device characterized by that.
The fire hydrant device according to any one of claims 3 to 5, wherein a nozzle water discharge inspection system is provided for the nozzle water discharge system,
The nozzle discharge check system is
A check valve that is branched and connected to the primary side of the fire hydrant valve, and is controlled to be opened at the time of inspection;
An orifice that is disposed on the secondary side of the check valve, and that allows a check water amount corresponding to a water discharge amount of the hose with nozzle to flow into a drain pipe;
A fire hydrant device characterized by comprising:
9. The fire hydrant apparatus according to claim 8, wherein the nozzle water discharge inspection system includes a sensor for detecting a water discharge pressure or a flow rate at the time of inspection.
The fire hydrant device according to claim 3 or 4, wherein a cognitive water discharge inspection system is provided for the cognitive water discharge system,
The tactile discharge check system is
A water supply port to which pressurized water for fire extinguishing is supplied, a water discharge port to which the emergency awareness head side is connected, and an inspection drainage port to which the drainage side is connected, a normal position communicating with the water discharge port and the inspection drainage port, water supply A three-way switching valve partially equipped with a function of the conscious discharge valve that can be switched to a water discharge position that communicates the port with the water discharge port, and a water supply port that communicates with the inspection drainage port;
An orifice that is disposed on the inspection drainage port side of the three-way switching valve, and that causes an inspection water amount corresponding to the water discharge amount of the hose with nozzle to flow to the drainage side;
A fire hydrant device characterized by comprising:
The fire hydrant apparatus according to claim 10, wherein the tactile water discharge inspection system includes a sensor for detecting a water discharge pressure or a flow rate at the time of inspection.
2. The fire hydrant apparatus according to claim 1, wherein the emergency awareness head is arranged on one side or both sides in the tunnel.
2. The fire hydrant apparatus according to claim 1, wherein the emergency head is installed outside the housing and connected to a water discharge system in the housing by piping.
2. The fire hydrant apparatus according to claim 1, wherein the emergency head is installed in a housing and discharges water from a water discharge opening toward the outside.
The fire hydrant apparatus according to claim 2, wherein the control device detects the opening of the fire hydrant door, the opening detection of the fire hydrant valve, the opening detection of the fire hydrant door, the detection of the fire extinguisher, the fire detection by the fire detector, or The fire hydrant device, wherein water is discharged from the emergency head when it is desired to notify the water spraying facility of overlapping water spray facilities before starting water discharge.
3. The fire hydrant apparatus according to claim 2, wherein the control device discharges water from its own emergency sensing head and operates the emergency hydrant device in one or a plurality of compartments in front of its own installation compartment when an emergency facility is operated. A fire hydrant device that discharges water from a conscious head.
The fire hydrant apparatus according to claim 1, wherein the stick-shaped pattern is discharged from the emergency head.
2. The fire hydrant apparatus according to claim 1, wherein the emergency pattern head discharges the bar-shaped pattern obliquely with respect to a direction crossing the lane and / or a direction along the lane.
The fire hydrant apparatus according to claim 1, wherein a water discharge is made by crossing a rod-shaped pattern with respect to a lane from two emergency heads arranged on both sides in the tunnel.
2. The fire hydrant apparatus according to claim 1, wherein the bar pattern is discharged from the emergency head in a direction transversely across the lane.
21. The fire hydrant apparatus according to claim 17, wherein a plurality of the emergency awareness heads are arranged to discharge a plurality of bar-shaped patterns.
  The fire hydrant apparatus according to any one of claims 17 to 21, wherein a bar-like pattern is discharged intermittently or periodically from the emergency sense head.

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