JP2016106732A - Firefighting equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide firefighting equipment by which the occurrence of fire and the start of water discharge are reliably recognized and the proper safe action can effectively be promoted to be taken, while dispensing with separately providing a control line, etc.SOLUTION: Firefighting equipment includes: fire extinguishing agent discharge means for making a fire extinguishing agent discharge in the case of fire; and warning display means 2 for displaying warning in the case of fire. Also, the fire extinguishing agent discharge means includes a pilot valve for discharging the fire extinguishing agent by opening operation and control means for performing opening/closing control of the pilot valve based on the detection signal of the fire. The warning display means is configured to operate while being interlocked with opening/closing drive of the pilot valve by the control means.SELECTED DRAWING: Figure 7

Description

  The present invention relates to fire extinguishing equipment.

  For example, when a fire breaks out in a tunnel, it receives a signal from an automatic notification facility such as a fire detector or a manual notification facility such as a push button notification facility, and automatically uses a water spray automatic valve after a predetermined time. A water spray facility for releasing water (extinguishing agent) from the spray head all at once is provided as a main facility. This is intended to protect road users against fire, prevent the spread of fire, extinguish fires, protect tunnel bodies and equipment.

  On the other hand, we expect road users to take safety actions such as stopping the car and evacuating when a tunnel fire occurs, but in practice, avoid the fire spot without stopping the car. There are many road users trying to pass. As a result, even if a road administrator who recognizes the occurrence of a fire tries to activate the water spray facility, there is a situation in which it is not possible to sprinkle (water discharge) because of fear of the occurrence of a secondary disaster for road users who are not taking safety actions. End up.

  Contrary to this, when starting up the water spray equipment, water is sprayed with a small amount of water before full-scale watering is performed, and the stop is promoted with this small amount of watering, and then the system is shifted to full-scale watering. A water spray facility has been proposed (see, for example, Patent Document 1, Patent Document 2, and Patent Document 3).

  In addition, smoke generators (smoke generating means, smoke cylinders) or flashlights and swivel warning lights are arranged at predetermined intervals in the tunnel, and when a fire is detected, the smoke generators installed by the control means in the fire occurrence section and its entry side section There has been proposed a method of activating smoke to activate a flash light or turning warning light (see, for example, Patent Document 4).

JP 2002-355324 A JP 2005-177520 A JP 2007-203103 A JP 2011-206115 A

  However, even when it is configured to spray a small amount of water before full-scale watering as described above, if the road user does not know the meaning of the small amount of watering and does not understand the function and purpose, the vehicle is stopped. There is also a risk that the operation will continue. That is, there is a possibility that the purpose of stopping the vehicle before watering is not sufficiently exhibited.

  Moreover, in the conventional water spray equipment, it is assumed that there is a time interval until full-scale watering, so that it stops in front of the watering section before moving to full-scale watering or passes (can pass) the watering section. Yes. However, there is a possibility that the car has entered the watering section in a state where it has shifted to full-scale watering. As a result, for example, full-scale watering is started in which water corresponding to a rainfall of 360 mm per hour is sprinkled. There is a risk that secondary accidents will occur.

  In addition, if a smoke generator or flash light or turning warning light is placed and activated by the control means to display a fire warning, the control line (control wire) etc. is drawn independently and the disaster prevention panel In this respect, there is still room for improvement.

  In view of the above circumstances, the present invention makes it possible to reliably recognize the occurrence of a fire, the start of watering, etc., and to effectively take appropriate safety actions while eliminating the need to provide a separate control line or the like. The purpose is to provide fire extinguishing equipment.

  In order to achieve the above object, the present invention provides the following means.

  The fire extinguishing equipment of the present invention comprises a fire extinguishing agent releasing means for releasing a fire extinguishing agent in the event of a fire, and a warning display means for displaying a warning in the event of a fire, and the fire extinguishing agent is opened by opening the fire extinguishing agent. And a control means for controlling the opening and closing of the pilot valve based on a fire detection signal so that the warning display means operates in conjunction with the opening and closing drive of the pilot valve by the control means. It is configured.

  In this invention, when a fire is detected and the pilot valve of the extinguishing agent releasing means is opened to discharge a fire extinguishing agent such as water, a smoke generator, a flashlight or a swivel is interlocked with the opening / closing drive of the pilot valve. A warning display means such as a warning light is activated and a warning can be displayed.

  As a result, the fire extinguisher is released by the fire extinguishing agent releasing means (and the fire extinguishing agent releasing means is activated), and a warning display can be automatically issued. Can be recognized. Therefore, it is possible to promptly take safe actions as compared with the conventional case.

  Further, in the fire extinguishing equipment of the present invention, the warning display means is provided so as to share the starting power supply with the pilot valve, and the opening and closing drive of the pilot valve and the operation of the warning display means are performed by sharing the starting power supply. It is desirable to be configured to be interlocked.

  In this invention, the warning display means is connected to the starting power source for opening and closing the pilot valve of the extinguishing agent releasing means for releasing the extinguishing agent in the event of a fire based on the command of the control means, and the extinguishing agent releasing means is shared by the starting power source. Since the warning display means operates in conjunction with the pilot valve opening and closing drive by the control means, it is unnecessary to draw a control line (control wire) or the like independently.

  Furthermore, in the fire extinguishing equipment of the present invention, it is more desirable that the warning display means is at least one of a light irradiation means for displaying a warning by irradiating light and a smoke generating means for emitting a smoke to display a warning. .

  In this invention, while the pumping force of a fire extinguishing agent acts, light can be automatically irradiated from a light irradiation means. And smoke can be automatically generated from the smoke generating means while the pumping force of the extinguishing agent acts. This allows people to recognize that a fire has occurred or that a fire extinguisher is released by expressing a warning with light or smoke, and encourages them to take safe actions more reliably than before. Is possible.

  Further, the fire extinguishing equipment of the present invention is configured to irradiate light from the light irradiating means toward the fire extinguisher released by the fire extinguisher releasing means, and to display a warning with reflected light reflected by the fire extinguisher. May be.

  In this invention, while the pumping force of a fire extinguisher acts, light can be automatically irradiated from the light irradiation means to, for example, a fire extinguisher released into a curtain in the air. As a result, the light is reflected by the fire extinguisher released into the air, and a warning such as a letter can be expressed by the scattered light. Therefore, it is possible to make a person recognize that a fire has occurred or that a fire extinguisher is released, and it is possible to urge the person to take safe actions more reliably than before.

  Further, the fire extinguishing equipment of the present invention may be configured to irradiate light from the light irradiating means toward the smoke emitted from the smoke generating means and display a warning with reflected light reflected by the smoke.

  In this invention, while the pumping force of the fire extinguishing agent acts, smoke is automatically emitted from the smoke generating means, and the light can be automatically irradiated from the light emitting means. As a result, the light is reflected by the smoke emitted into the air, and a warning such as a letter can be expressed by the scattered light. Therefore, it is possible to make a person recognize that a fire has occurred or that a fire extinguisher is released, and it is possible to urge the person to take safe actions more reliably than before.

  In the fire extinguishing equipment of the present invention, when a fire has occurred and this is detected and the fire extinguisher is released, a warning is displayed in conjunction with the opening / closing drive of the pilot valve for releasing the fire extinguisher. Thereby, it becomes possible to make a person recognize by warning that a fire extinguisher is discharged or that a fire has occurred.

It is a figure showing fire extinguishing equipment concerning one embodiment of the present invention. It is a figure which shows the extinguishing agent discharge | release means of the fire extinguishing equipment which concerns on one Embodiment of this invention, and is a figure which shows the state of the extinguishing agent discharge | release means at the time of the normal monitoring of a tunnel. It is a figure which shows the extinguishing agent discharge | release means of the fire extinguishing equipment which concerns on one Embodiment of this invention, and is a figure which shows the state at the time of starting of a extinguishing agent discharge | release means. It is a figure which shows the fire extinguisher discharge | release means of the fire extinguishing equipment which concerns on one Embodiment of this invention, and is a figure which shows the state at the time of the initial stage water discharge of a fire extinguisher discharge | release means. It is a figure which shows the fire extinguisher discharge | release means of the fire extinguishing equipment which concerns on one Embodiment of this invention, and is a figure which shows the state at the time of the low pressure water discharge of a fire extinguisher discharge | release means. It is a figure which shows the fire extinguisher discharge | release means of the fire extinguishing equipment which concerns on one Embodiment of this invention, and is a figure which shows the state at the time of the regular pressure water discharge of a fire extinguisher discharge | release means. It is a figure which shows the circuit (control) of the fire extinguishing equipment which concerns on one Embodiment of this invention. It is a figure which shows the other circuit (control) of the fire extinguishing equipment which concerns on one Embodiment of this invention. It is a figure which shows the example of a change of the fire extinguishing equipment which concerns on one Embodiment of this invention.

  Hereinafter, with reference to FIGS. 1-8, the fire extinguishing equipment which concerns on one Embodiment of this invention is demonstrated.

  Here, in the present embodiment, when a fire occurs in the tunnel, it is ensured that the road user recognizes a warning such as releasing a fire extinguisher or that a fire has occurred. The present invention relates to fire extinguishing equipment that can ensure safety.

  As shown in FIG. 1, the fire extinguishing facility A of the present embodiment detects a fire upon receiving a signal from an automatic reporting facility such as a fire detector or a manual reporting facility such as a push button reporting facility, and a fire extinguishing agent ( In this embodiment, the apparatus includes a fire extinguishing agent discharge means 1 for discharging water) and a warning display means 2 for displaying a warning.

  Furthermore, the fire extinguishing equipment A of the present embodiment is configured to include a delay device (delay mechanism: see FIG. 2) 15 for releasing the fire extinguishing agent after the warning display means 2 displays the warning.

  The warning display means 2 of the present embodiment has a predetermined interval in the length direction from one wellhead of the tunnel M to the other wellhead depending on the arrangement configuration of the fire extinguishing agent discharge means 1 and the setting situation of the fire prevention section. A plurality are arranged. Further, the warning display means 2 of this embodiment displays a warning by emitting light such as a light emitting means for emitting a warning by irradiating light such as a flash light, a laser beam, or a high-intensity LED. At least one of the smoke generating means is used.

  Further, the smoke generating means is provided in, for example, an automatic valve storage box, a fire hydrant storage box, or a dedicated storage box installed in the upper part of the automatic valve storage box, the fire hydrant storage box, and the like. Is configured to release.

The light irradiating means is provided so as to irradiate light toward the extinguishing agent released by the extinguishing agent releasing means, or to irradiate light toward the smoke emitted from the smoke generating means.
Note that the light irradiation unit does not necessarily have to irradiate light toward the fire extinguisher or smoke as long as the warning can be displayed by the light irradiation.

  Next, as shown in FIG. 2, the fire extinguishing agent discharge means 1 of the present embodiment includes a spray head (spray nozzle, sprinkler) 16 that discharges water of the fire extinguishing agent, a water storage tank that supplies the fire extinguishing agent under pressure, and a pressure feed A water supply means (not shown) provided with a pump and the like, and an automatic valve driven and controlled by the control means so as to release / stop the extinguishing agent sent from the water supply means from the spray head 16 based on a signal from the disaster prevention panel Device 17.

  The control means activates the automatic valve device 17 in conjunction with the activation of the pilot valve 23 based on an operation signal from the disaster prevention panel, and receives a pump activation signal associated with activation of the automatic valve device 17 or a remote test. Then, the pressure feed pump is driven, and the automatic valve device 17 is controlled to supply the pressurized fire extinguisher.

  The automatic valve device 17 is housed in an automatic valve storage box installed on the side wall of the tunnel M, and is installed one by one (one set), for example, in a water spray section at intervals of 50 m in the tunnel axis direction. Further, a pipe 28 is provided extending from the automatic valve device 17 in the circumferential direction of the tunnel M and further branched in the axial direction, and a plurality of spray heads 16 are attached to the pipe 28 at predetermined intervals.

  Specifically, the automatic valve device 17 of the present embodiment will be described. As shown in FIG. 2, the automatic valve device 17 includes an automatic valve 20, an initial water discharge pressure control valve 21, a pressure adjustment valve 22, a pilot valve (start valve) 23, a manual start valve 24, a test water discharge valve 25, an automatic drain. A valve 26 and a pressure switch 27 are provided.

  In the automatic valve 20, for example, an extinguishing agent inlet 20a and an outlet 20b are formed in the valve body 18, a pipe (not shown) from a water supply means is connected to the inlet 20a, and the spray head 16 is connected to the outlet 20b. A connecting pipe 28 is connected. The valve body 18 is provided with a partition wall (valve seat) 32 for defining an inlet side chamber 30 and an outlet side chamber 31 inside the valve body 18, and the inlet side chamber 30 and the outlet side chamber 31. Are communicated by a valve hole 33 formed through the partition wall (valve seat) 32.

  Further, a stem (valve element operating shaft) 34 is supported on the valve body 18 so as to be able to advance and retract. The stem 34 is integrally provided with a valve body 35 so that the valve hole 33 can be opened and closed as the stem 34 advances and retreats. The stem 34 is integrally attached with a piston 36. The piston 36 is disposed so as to partition the inside of the cylinder integrally formed with the valve body 18 into an open pressure side cylinder chamber 40 and a closed pressure side cylinder chamber 41.

  A cover member 42 is attached to the valve body 18. The cover member 42 is formed with a first connection port 18a and a second connection port 18b through which a pipe connected to the initial water discharge pressure control valve 21 is connected. Then, the first connection port 18a and the second connection port 18b of the cover member 42 communicate with each other through the internal space in a state where the stem 34 is advanced and the valve hole 33 is closed, and the stem 34 is retracted to open the valve hole 33. In the opened state, the second connection port 18b is closed with a sealing material 43 such as an O-ring provided in the stem 34, and the first connection port 18a and the second connection port 18b are blocked from each other. Yes.

  The initial water discharge pressure control valve 21 includes a first connection port 45a and a second connection port 45b that communicate with the valve body 45, and a valve that opens and closes (communicates / blocks) the first connection port 45a and the second connection port 45b. A body 46 is provided. The valve body 46 is connected to a piston 47 that advances and retreats in the cylinder, and is provided so as to open and close the first connection port 45a and the second connection port 45b in accordance with the advancement and retraction of the piston 47. One cylinder chamber 48 in the cylinder defined by the piston 47 communicates with the second connection port 45b. A spring 50 for biasing the piston 47 toward the one cylinder chamber 48 with a predetermined pressing force is provided inside the other cylinder chamber 49 in the cylinder. The pressing force of the spring 50 can be adjusted as appropriate.

  In this initial water discharge pressure control valve 21, the first connection port 45 a is connected to the first connection port 18 a of the cover member 42 of the automatic valve 20 by the first pipe 51, and the second connection port 45 b is connected to the second connection of the cover member 42. The second pipe 52 is connected to the port 18b. A third pipe 53 is branched and connected to the first pipe 51, and the third pipe 53 is connected to a third connection port 18 c that communicates with the closed pressurizing side cylinder chamber 41 of the valve body 18 of the automatic valve 20.

  The inside of the cover member 42, the closed pressurizing side cylinder chamber 41, the first pipe 51, the second pipe 52, the third pipe 53, and the first connection port 45a and the second connection port 45b of the initial water discharge pressure control valve 21 are connected. One cylinder chamber 48 of the cylinder of the passage and the initial water discharge pressure control valve 21 is filled with control water.

  The pressure regulating valve 22 includes a first connection port 55a and a second connection port 55b that communicate with the valve body 55, and a valve body 56 that opens and closes (communicates / blocks) the first connection port 55a and the second connection port 55b. It is configured with. The valve body 56 is urged by a spring 57 in a direction to close (shut off) the first connection port 55a and the second connection port 55b. Further, the pressure regulating valve 22 is provided with a cylinder and a piston 60 which is provided inside the cylinder so as to be able to advance and retract, and divides the inside of the cylinder into one cylinder chamber 58 and the other cylinder chamber 59. A piston rod 61 is connected to the piston 60.

  In this pressure regulating valve 22, when the piston 60 moves to the one cylinder chamber 58 side and the piston rod 61 advances following this, the spring 57 is pressed in the direction of contraction, and the valve body 56 is in the first position. The connection port 55a and the second connection port 55b are pressed in the closing direction. Further, when the piston 60 moves to the other cylinder chamber 59 side and the piston rod 61 is retracted following this movement, the spring 57 is extended, and the first connection port 55a and the second connection port 55b of the valve body 56 are closed. The pressing force acting in the direction is reduced.

  In addition, the pressure regulating valve 22 is provided with a check valve 62 that connects one cylinder chamber 58 and the other cylinder chamber 59 to the piston 60, and further communicates the one cylinder chamber 58 and the other cylinder chamber 59 in the middle. A bypass pipe 64 having a needle valve 63 is provided.

  In this pressure regulating valve 22, a fourth pipe 65 branchingly connected to a second pipe 52 connecting the second connection port 18 b of the automatic valve 20 and the second connection port 45 b of the initial water discharge pressure control valve 21 is connected to the other cylinder chamber 59. Is connected to a third connection port 55c communicating with the. A fifth pipe 66 branched and connected to the fourth pipe 65 is connected to the first connection port 55a. Furthermore, the 4th connection port 55d connected to the communicating path of the 1st connection port 55a of the pressure control valve 22 and the 2nd connection port 55b, and the 4th connection port 18d connected to the open | release pressurization side cylinder chamber 40 of the automatic valve 20 are provided. The sixth pipe 67 is connected.

  Further, a seventh pipe 68 is provided in connection with the open pressure side cylinder chamber 40 of the automatic valve 20. The seventh pipe 68 includes a parallel pipe, and the automatic drain valve 26 is provided in one parallel pipe, and the test water discharge valve 25 is provided in the other parallel pipe. The seventh pipe 68 is provided with a pressure switch 27 connected to the chamber 31 side on the outlet side of the automatic valve 20 relative to the parallel pipe. Further, an eighth pipe 69 is provided with one end branched and connected to the chamber 31 side on the outlet side of the automatic valve 20 with respect to the parallel pipe of the seventh pipe 68 and the other end branched to the fourth pipe 65. Yes.

  Next, a ninth pipe 70 is provided with one end connected to the chamber 30 on the inlet side of the automatic valve 20 and the other end connected to the first connection port 71 a of the valve body 71 of the delay device 15. The ninth pipe 70 includes a parallel pipe, and a pilot valve (start valve) 23 is provided in one parallel pipe, and a manual start valve 24 is provided in the other parallel pipe.

  In the delay device (delay mechanism) 15 of the present embodiment, a first connection port 71a and a second connection port 71b are formed in the valve body 71, and the first connection port 71a is connected to the chamber 30 on the inlet side of the automatic valve 20. 70th pipes are connected. The other end of the tenth pipe 72 having one end connected to the second connection port 55b of the pressure regulating valve 22 is connected to the second connection port 71b. Further, the valve body 71 has an outlet-side chamber 76 communicating with the second connection port 71 b and an inlet-side chamber 77 communicating with the third connection port 71 c defined by a partition wall (valve seat) 74. Is formed. Further, the partition wall (valve seat) 74 is provided with a valve hole 75 formed so as to penetrate the outlet side chamber 76 and the inlet side chamber 77.

  Further, a stem (valve element operating shaft) 80 is supported on the valve body 71 of the delay device 15 so as to be movable forward and backward. The stem 80 is integrally provided with a valve body 81 so that the valve hole 75 can be opened and closed as the stem 80 advances and retreats. In addition, a spring 82 that biases the valve body 81 so as to close the valve hole 75 is provided.

  The delay device 15 is provided with a cylinder and a piston 85 provided inside the cylinder so as to be able to advance and retreat, and dividing the inside of the cylinder into one cylinder chamber 83 and the other cylinder chamber 84. A piston rod 86 is connected to the piston 85. When the piston 85 advances, the piston rod 86 presses the stem 80 in the direction in which the valve body 81 opens the valve hole 75.

  Further, the cylinder of the delay device 15 is provided with a first connection port 71a so as to communicate with the other cylinder chamber 84, and a ninth pipe 70 is connected to the first connection port 71a.

  Further, the delay device 15 is provided with a check valve 89 for connecting the one cylinder chamber 83 and the other cylinder chamber 84 to the piston 85. Further, the one cylinder chamber 83 and the other cylinder chamber 84 are communicated with each other. A bypass pipe 88 having a needle valve 87 is provided in the middle.

  Further, the valve body 71 of the delay device 15 is provided with a third connection port 71c in communication with the chamber 77 on the inlet side, and a twelfth pipe 92 has one end connected to the third connection port 71c and the other end connected to the third connection port 71c. The ninth pipe 70 is branched and connected.

  Further, a thirteenth pipe 93 connecting the ninth pipe 70 and the eighth pipe 69 is provided, and a water supply valve 94 is provided in the thirteenth pipe 93.

  Here, at the time of normal monitoring of the automatic valve device 17 of the present embodiment configured as described above, at the time of starting the automatic valve device, at the time of initial discharge of the fire extinguishing agent, at the time of low pressure discharge of the fire extinguishing agent, at the time of discharge of the specified pressure of the fire extinguishing agent Will be described.

  First, in the normal monitoring state, as shown in FIG. 2, the closed pressurizing side cylinder chamber 41 of the automatic valve 20 is filled with control water, and the valve hole 33 is closed by the valve body 35. The control water can be filled by opening the water supply valve 94.

  Next, when the automatic valve device 17 is started, as shown in FIG. 3, the pilot valve (starting valve) 23 is opened in response to an operation command from the control means. Alternatively, the manual start valve 24 is manually operated to be opened. As a result, pressurized water (primary pressurized water) is press-fitted from the fourth connection port 18d into the open pressure side cylinder chamber 40 of the automatic valve 20, the piston 36, the stem 34, and the valve body 35 are raised, and the valve hole 33 is opened. start. At this time, as the piston 36 moves up, the control water in the closed pressurizing side cylinder chamber 41 becomes inside the cover member 42, the closed pressurizing side cylinder chamber 41, the first pipe 51, the second pipe 52, and the third pipe. 53 circulates between the communication path of the first connection port 45 a and the second connection port 45 b of the initial water discharge pressure control valve 21 and one cylinder chamber 48 of the initial water discharge pressure control valve 21.

  Next, at the time of initial water discharge, as shown in FIG. 4, the valve body 35 of the automatic valve 20 gradually rises, so that the extinguishing agent is transferred from the inlet side chamber 30 to the outlet side chamber 31 through the valve hole 33. Water is supplied, and water discharge starts from the spray head 16. Further, when the valve body 35 of the automatic valve 20 gradually rises and the valve body 35 reaches the ascent restriction position, the sealing material 43 attached to the stem 34 closes the second connection port 18b of the automatic valve 20 and controls it. Water circulation stops. When the pressure in the chamber 31 on the outlet side of the automatic valve 20, that is, the pressure of the secondary pressurized water exceeds a predetermined pressure, the pressure switch 27 is turned on and a signal for automatic valve operation is transmitted to the disaster prevention panel. Is done.

  Next, at the time of low-pressure water discharge of the extinguishing agent, as shown in FIG. 5, when the water filling in the secondary side pipes is completed, a certain pressure is generated in these pipes. When this pressure exceeds the set pressure of the initial water discharge pressure control valve 21, the valve hole of the initial water discharge pressure control valve 21 is opened. When the initial water discharge pressure control valve 21 is opened, the flow path of the control water is established, and the circulation of the control water starts again. As a result, the stem 34 and the valve body 35 of the automatic valve 20 can freely move from fully closed to fully open. It becomes possible to move.

  Then, the position of the piston 36 of the automatic valve 20, the opening degree of the valve hole 33, and the pressurized water so that the pressure of the secondary side pressurized water (pressure on the outflow side of the automatic valve 20) becomes the set pressure of the pressure regulating valve 22. The inflow / outflow amount is controlled. Thereby, if the set pressure of the pressure regulating valve 22 is set to a low pressure, low pressure water discharge can be performed.

  Next, when the specified pressure is discharged, as shown in FIG. 6, the control water flows into the other cylinder chamber 59 of the pressure regulating valve 22, and the control water pushes down the piston 60. When the piston 60 is pushed down, the set pressure of the pressure adjustment valve 22 increases. As a result, the position of the piston 36 of the automatic valve 20, the opening degree of the valve hole 33, and the amount of pressurized water inflow / outflow are controlled according to the increased installation pressure of the pressure regulating valve 22, and the full pressure of the specified pressure is controlled from the spray head 16. Water is discharged. At this time, since the check valve 62 is provided in the piston 60, the control water passes through the check valve 62 to one cylinder chamber 58 and passes through the needle valve 63 to the other cylinder chamber 59 again. Return. Thereby, the switching time of the set pressure can be adjusted by adjusting the opening degree of the needle valve 63.

  On the other hand, in the fire extinguishing equipment A of the present embodiment, as shown in FIGS. 2 to 6, when the fire extinguishing agent water is discharged (sprayed) from the automatic valve device 17 of the section due to a fire, as described above, the pilot valve When 23 is controlled from closed to open, pressurized water of the extinguishing agent flows into the ninth pipe 70.

  At this time, since the ninth pipe 70 is connected to the delay device 15 and the delay device 15 closes the valve hole 75 by the biasing force of the spring 82, the open pressure side cylinder chamber 40 of the automatic valve 20 has no pressurized water. Does not flow and water is not discharged.

  When the pressure gradually increases, the primary pressurized water flows into the other cylinder chamber 84 of the delay device 15. When this pressure exceeds a pressure value set in advance, the piston 85 is lowered.

Further, the speed at which the piston 85 of the delay device 15 is lowered is determined by the opening degree of the needle valve 87 of the bypass 88 that leads up and down. That is, the delay time can be adjusted by the needle opening.
The piston 85 is provided with a check valve 89. When the pressurized water flows through the check valve 89 in one direction and the piston 85 is biased by the spring 95, the piston 85 is returned to the initial position. Can be made.

  When the piston 85 of the delay device 15 is pushed down, it hits the stem 80, the stem 80 and the valve body 81 are lowered as they are, the valve hole 75 is opened, and the primary pressurized water is opened in the automatic pressure cylinder chamber of the open pressure side. 40. As a result, the automatic valve 20 moves in the opening direction, water flows to the secondary side, and water discharge is started from the spray head 16.

  When the secondary side pressure is larger than the predetermined pressure, the pressure regulating valve 22 stops supplying the automatic valve 20 to the open pressurizing side cylinder chamber 40. At the same time, the pressurized water in the open pressure side cylinder chamber 40 of the automatic valve 20 is drained, and the automatic valve 20 moves in the closing direction.

  When the secondary side pressure is smaller than the predetermined pressure, the pressure regulating valve 22 increases the supply of the automatic valve 20 to the open pressurizing side cylinder chamber 40, and the automatic valve 20 moves in the opening direction.

  Here, as described above, in the fire extinguishing equipment A of the present embodiment, as shown in FIG. 7A and FIG. 8A (see FIGS. 2 to 6), The control means receiving the signal from the disaster prevention panel issues a start command to the extinguishing agent releasing means 1 that protects the fire occurrence section, the pilot valve 23 is opened, and the automatic valve 20 is operated from the fully closed state to the fully open state. To do. As a result, fire extinguishing agent water is discharged from the spray head 16.

  On the other hand, as shown in FIGS. 7 and 8 (see FIGS. 2 to 6), the fire extinguishing equipment of this embodiment includes a limit switch (SLS / OLS) that opens and closes according to an operation command of the control means, and includes an automatic valve device 17. The light irradiation means and smoke generation means of the warning display means 2 are connected to an activation power supply circuit for opening and closing the pilot valve 23, and the light irradiation means and smoke generation means of the warning display means 2 share the startup power supply with the pilot valve 23. It is configured as follows.

  In the fire extinguishing equipment A of the present embodiment, when the pilot valve 23 operates from the fully closed state to the fully open state, the fully open limit switch (SLS / OLS) is turned on, and the warning display means 2 is turned on by a signal from this limit switch. The warning display means 2 is activated instead of a circuit for supplying power. Thereby, light is irradiated from the light irradiation means which is the warning display means 2, and / or smoke is emitted from the smoke generation means.

  In the present embodiment, as described above, the delay device 15 delays the discharge of the fire-extinguishing agent water from the fire-extinguishing agent releasing means 1 for a predetermined time. A warning will be displayed.

  Therefore, in the fire extinguishing equipment A of the present embodiment, when a fire is detected and the pilot valve 23 of the fire extinguisher discharging means 1 is opened and a fire extinguishing agent such as water is released, the pilot valve 23 is opened and closed. In conjunction with this, the warning display means 2 is activated and a warning can be displayed.

  As a result, the fire extinguisher is released by the fire extinguisher releasing means 1 (and the fire extinguishing agent releasing means 1 is activated), and a warning display can be automatically issued. Recognize that fire extinguishing agents are released. Therefore, it is possible to promptly take safe actions as compared with the conventional case.

  Further, in the fire extinguishing equipment A of the present embodiment, the warning display means 2 is connected to the starting power source for opening and closing the pilot valve 23 of the fire extinguishing agent releasing means 1 for releasing the extinguishing agent in the event of a fire, based on the command of the control means The warning display means 2 operates in conjunction with the opening / closing drive of the pilot valve 23 by the control means of the fire extinguisher discharging means 1 by sharing the start-up power source, so that control lines (control wires) and the like are drawn independently. Can be made unnecessary.

  Further, in the fire extinguishing equipment A of the present embodiment, the warning display means 2 is at least one of a light irradiation means that emits light to display a warning and a smoke generating means that emits smoke and displays a warning. The pumping force of the extinguishing agent acts, and light can be automatically irradiated from the light irradiation means. And smoke can be automatically generated from the smoke generating means while the pumping force of the extinguishing agent acts. This allows people to recognize that a fire has occurred or that a fire extinguisher is released by expressing a warning with light or smoke, and encourages them to take safe actions more reliably than before. Is possible.

  Furthermore, as shown in FIG. 9, if the light 101 is irradiated from the light irradiation means toward the fire extinguisher 100 released by the fire extinguisher releasing means 1, for example, the fire extinguisher 100 released into the curtain in the air. The light 101 can be irradiated, and the light 101 is reflected by the extinguishing agent 100 released into the air, and a warning 102 such as a letter can be represented by the scattered light 101. Therefore, it is possible to make a person recognize that a fire has occurred or that a fire extinguisher is released, and it is possible to urge the person to take safe actions more reliably than before.

  Also, if the light 101 is irradiated from the light irradiating means toward the smoke emitted by the smoke generating means, the light 101 is reflected by the smoke emitted into the air, and a warning 102 such as a letter is given by the scattered light 101. Can be represented. Therefore, even in this case, it is possible to let a person recognize that a fire has occurred or that the extinguishing agent 101 is released, and it is possible to urge the person to take safe actions more reliably than before. .

  Further, in the fire extinguishing equipment A of the present embodiment, the fire extinguishing agent is released after a predetermined time has elapsed after the warning display means 2 displays the warning by the delay device (delay mechanism) 15. It becomes possible to release the fire extinguishing agent when a person recognizes the warning displayed on the display means 2 and takes a safety action.

  Furthermore, in the fire extinguishing equipment A of this embodiment, after warning display is performed by the warning display means 2, a small amount of fire extinguishing agent is released, and then a large amount of fire extinguishing agent is released in earnest. Thereby, it is possible to prompt a person to take a safety action in two stages of warning display by the warning display means 2 and a small amount of extinguishing agent.

  In this way, the warning display means 2 is activated, and a person such as a road user recognizes that a fire has occurred or that a fire extinguisher is released, and takes safety actions such as stopping the car surely. Therefore, it is possible to surely eliminate the inconvenience that full-scale watering cannot be performed as in the prior art. That is, the original function and purpose as the fire extinguishing equipment A (extinguishing agent discharge means 1) can be effectively exhibited.

  As mentioned above, although one Embodiment of the fire extinguishing equipment which concerns on this invention was described, this invention is not limited to said one Embodiment, In the range which does not deviate from the meaning, it can change suitably.

For example, in the present embodiment, the fire extinguishing equipment A and the fire warning display method according to the present invention are applied to a tunnel fire. However, the present invention is applicable to any facility.
Moreover, it is not necessary to limit the fire extinguisher concerning this invention to water.

  Furthermore, in this embodiment, after displaying warning by the warning display means 2, it demonstrated as what discharge | releases a small amount of fire extinguishing agents, and then performs full-scale large-scale discharge | release of a fire extinguishing agent. You may comprise so that discharge | release may not be performed. That is, in the present invention, if the delay mechanism 15 is provided or controlled by the control means, and a warning is displayed by the warning display means 2, a fire extinguishing agent can be released after a predetermined time has elapsed. Even without making a water discharge announcement by small amount water discharge, the warning display means 2 can make a water discharge announcement, and the purpose can be achieved. Accordingly, it is possible to prevent the fire extinguishing agent from being released before the person takes a safety action, and delaying the evacuation or the occurrence of a secondary disaster due to the release of the fire extinguishing agent.

DESCRIPTION OF SYMBOLS 1 Fire extinguisher discharge | release means 2 Warning display means 3 Screen 4 Frame 4a Fixing part 4b Support part 5 Shaft part 6 Advance / Retreat mechanism 8 Advance / Retreat member 8 Cylinder 8a One cylinder chamber 8b The other cylinder chamber 9 Piston 10 Piston rod 11 Spring 15 Delay Equipment (delay mechanism)
16 Spray head 17 Automatic valve device 18 Valve body 18a First connection port 18b Second connection port 18c Third connection port 18d Fourth connection port 20 Automatic valve 20a Inlet 20b Outlet 21 Initial water discharge pressure control valve 22 Pressure adjustment valve 23 Pilot valve (electrically operated on / off valve / starting valve)
24 Manual start valve 25 Test discharge valve 26 Automatic drain valve 27 Pressure switch 28 Piping 30 Inlet side chamber 31 Outlet side chamber 32 Partition wall (valve seat)
33 Valve hole 34 Stem 35 Valve body 36 Piston 40 Open pressure side cylinder chamber 41 Closed pressure side cylinder chamber 42 Cover member 43 Seal member 45 Valve body 45a First connection port 45b Second connection port 45c Third connection port 45d Fourth connection Port 46 Valve body 47 Piston 48 One cylinder chamber 49 The other cylinder chamber 50 Spring 51 First piping 52 Second piping 53 Third piping 55 Valve body 55a First connection port 55b Second connection port 56 Valve body 57 Spring 58 One Cylinder chamber 59 of the other cylinder 60 piston 61 piston rod 62 check valve 63 needle valve 64 bypass pipe 65 fourth pipe 66 fifth pipe 67 sixth pipe 68 seventh pipe 69 eighth pipe 70 ninth pipe 71 valve body 71a 1st connection port 71b 2nd connection port 71c 3rd connection port 72 10th piping 74 Partition wall (valve seat)
75 Valve hole 76 Outlet side chamber 77 Inlet side chamber 80 Stem 81 Valve body 82 Spring 83 One cylinder chamber 84 The other cylinder chamber 85 Piston 86 Piston rod 87 Needle valve 88 Bypass pipe 92 12th piping 93 13th Piping 94 Water supply valve 100 Extinguishing agent 101 Light 102 Warning A Fire extinguishing equipment M Tunnel O1 Axis

Claims (5)

Fire extinguishing agent releasing means for releasing the extinguishing agent in the case of a fire,
And a warning display means for displaying a warning in the event of a fire,
The fire extinguishing agent releasing means includes a pilot valve that releases the extinguishing agent when opened, and a control means that controls opening and closing of the pilot valve based on a fire detection signal,
The fire extinguishing equipment, wherein the warning display means is operated in conjunction with the opening / closing drive of the pilot valve under the control of the control means. In the fire extinguishing equipment according to claim 1,
The warning display means is provided so as to share the starting power supply with the pilot valve;
A fire-extinguishing system configured to link the opening / closing drive of the pilot valve and the operation of the warning display means by sharing a startup power source. In the fire extinguishing equipment according to claim 1 or claim 2,
The fire extinguishing equipment, wherein the warning display means is at least one of a light irradiation means for irradiating light to display a warning and a smoke generation means for emitting smoke to display a warning. In the fire extinguishing equipment according to claim 3,
Fire extinguishing equipment configured to irradiate light from the light irradiating means toward the fire extinguisher discharged by the fire extinguisher discharging means and to display a warning with reflected light reflected by the fire extinguisher . In the fire extinguishing equipment according to claim 3 or claim 4,
A fire extinguishing system configured to irradiate light from the light irradiation unit toward smoke emitted from the smoke generating unit and display a warning by reflected light reflected by the smoke.

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