JPH0631009A - Fire extinguishing system for large space - Google Patents

Abstract

PURPOSE:To obviate the generation of unintended water discharge and water discharge by an erroneous operation. CONSTITUTION:This system releases the prohibition of insertion of a key to a key switch 25 at the point of the time when the fire signal outputted by fire detectors 11A, 11B or a private fire alarm receiver 70 or the output of a manual set switch 26 in inputted to this system. Fire extinguishing water is discharged from a water discharging nozzle 1 when a command to cause water discharge is outputted by making a prescribed key operation after the key is inserted into the key switch 25.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fire extinguishing system for large spaces used in disaster prevention facilities for large-scale large-scale structures such as sports facilities and convention facilities, and more particularly to a fire detector for detecting a fire position. The present invention relates to a large space fire extinguishing system including a water spray gun for discharging water and a monitoring control device for controlling the water spray gun based on information obtained from a fire detector.

[0002]

2. Description of the Related Art In recent years, buildings are becoming taller and larger in scale, and the construction of large-scale large space structures such as sports facilities and convention facilities mentioned above is on the increase. Since these large-scale buildings are used for various purposes and accommodate a large number of people, their safety is important,
In particular, there is an urgent need to enhance disaster prevention equipment.

As a disaster prevention facility for such a large space structure, a fire extinguishing system for large spaces has been already developed by the applicant of the present invention. This system is composed of a fire detector that detects the fire position as described above, a water spray gun that discharges water, and a monitoring control device that controls the water spray gun based on information obtained from the fire detector, The monitoring and control device detects the fire position with the fire detector (for example, detects the fire position by scanning), calculates the detection result, orients the water gun based on the calculation result, and determines the water discharge pressure. decide. Then, when the direction of the water spray gun and the water discharge pressure are determined, the operator inserts a key into the key switch provided on the water spray gun operation panel of the monitoring control device and turns the key to the water discharge side to discharge the water. Be started.

When the monitoring control device determines that it is not necessary to discharge water due to the detected fire scale, the monitoring control device displays that fact on the monitor in characters or figures. This is because we want to avoid using it unless we really need to extinguish it. In addition, the reason for leaving the final decision of water discharge to the operator is to prevent water discharge due to false alarms and malfunctions. Further, the monitoring control device is also provided with a switcher for manually performing all of the direction of the water spray gun, the water discharge pressure, and the water discharge determination.

[0005]

In the conventional fire extinguishing system for large spaces described above, when the key is inserted into the key switch and turned to the "water discharge" position, the water discharge is immediately started. If the key is left inserted in the switch, for example, if you accidentally touch the key or hit it, it will turn to the water discharge side, or if you accidentally turn it to the `` water discharge '' position, There was a problem that water was discharged unintentionally. In this case, a large amount of fire extinguishing water is released when water is discharged, which leads to loss of fire extinguishing water and
Accidents may result if there are people at the facility. Therefore, it is desirable to avoid water discharge except when there is a fire.

Therefore, an object of the present invention is to provide a fire extinguishing system for a large space in which unintentional water discharge and water discharge due to erroneous operation do not occur.

[0007]

In order to achieve the above object, a fire extinguishing system for large space according to claim 1 of the present invention comprises:
In a fire extinguishing system for a large space, which comprises a water discharge means for discharging water, a switch means for outputting a water discharge signal for starting water discharge, and a water discharge control means for controlling the water discharge means, wherein the water discharge control means is a fire signal. The water discharge means is operated by inputting the water discharge signal and the water discharge signal.

According to a second aspect of the present invention, there is provided a fire extinguishing system for a large space, which includes water discharge means for discharging water, switch means for outputting a water discharge signal for starting water discharge, and water discharge control means for controlling the water discharge means. In a large space fire extinguishing system comprising: a prohibiting means for prohibiting the use of the switch means, and a releasing means for invalidating the function of the prohibiting means by inputting a fire signal, the water discharge control means, The water discharge means is operated by inputting the water discharge signal.

According to a third aspect of the present invention, there is provided a large space fire extinguishing system, wherein the fire signal in the large space fire extinguishing system according to claim 1 or 2 is used as a large space monitoring fire detection. It is characterized by the output of the container.

According to a fourth aspect of the present invention, there is provided a fire extinguishing system for a large space, wherein the fire signal in the large space fire extinguishing system according to any one of the first and second aspects is transmitted to a self-fired alarm receiver. It is characterized by being output.

According to a fifth aspect of the present invention, there is provided a fire extinguishing system for a large space, which includes water discharge means for discharging water, switch means for outputting a water discharge signal for starting water discharge, and water discharge control means for controlling the water discharge means. In a large-scale fire extinguishing system provided with, a manual setting switch means is provided, and the water discharge control means operates the water discharge means by inputting an output of the manual setting switch means and the water discharge signal. To do.

According to a sixth aspect of the present invention, there is provided a fire extinguishing system for a large space, including a water discharge means for discharging water, a switch means for outputting a water discharge signal for starting water discharge, and a water discharge control means for controlling the water discharge means. In a large space fire extinguishing system including: a manual setting switch means, a prohibiting means for prohibiting the use of the switch means, and a release for invalidating the function of the prohibiting means by inputting an output of the manual setting switch means. Means, and the water discharge control means,
The water discharge means is operated by inputting the water discharge signal.

[0013]

According to the first aspect of the present invention, the water discharge signal is output by the operation of the switch means and is supplied to the water discharge control means. On the other hand, when the fire signal is supplied to the water discharge control means, the control for operating the water discharge means is performed. It is done, and the water discharge is started. Therefore, the water discharging means does not operate only by operating the switch means, and the water discharging means operates only when the fire signal comes in. Therefore, even if the switch means is operated by mistake, water discharging does not occur.

According to the second aspect of the present invention, when a fire signal comes in, the prohibition of use of the switch means is released, and the switch means can be used. Then, when the water discharge signal is output by the operation of the switch means and is supplied to the water discharge control means, control for operating the water discharge means is performed, whereby water discharge is started. Therefore, the operation of the switch means is impossible unless the fire signal comes in, and therefore water is not discharged even if the switch means is operated by mistake.

According to the third aspect of the present invention, the output of the large space monitoring fire detector is used as the fire signal, and the output of this fire detector is supplied to the water discharge control means together with the water discharge signal.
Control for operating the water discharge means is performed. Moreover, the prohibition of use of the switch means is released by the output of the fire detector,
This activates the switch means and the water discharge signal is supplied to the water discharge control means.

In the invention according to claim 4, when the output of the self-fire alarm receiver is used as the fire signal, and the output of this fire detector is supplied to the water discharge control means together with the water discharge signal, the control for operating the water discharge means is performed. Done. Further, the prohibition of the use of the switch means is released by the output of the self-fired alarm receiver, whereby the switch means becomes effective, and the water discharge signal is supplied to the water discharge control means.

In the fifth aspect of the invention, the water discharge signal is output by the operation of the switch means and is supplied to the water discharge control means, while the output of the manual setting switch means is supplied to the water discharge control means. Control to operate is performed,
This starts water discharge. Therefore, the water discharging means does not operate only by operating the switch means, and the water discharging means operates only when the output of the manual setting switch means comes in. Therefore, even if the switch means is operated by mistake, water discharging does not occur.

In the invention according to claim 6, when the output of the manual setting switch means comes in, the prohibition of use of the switch means is released, and the switch means can be used. Then, when the water discharge signal is output by the operation of the switch means and is supplied to the water discharge control means, control for operating the water discharge means is performed, whereby water discharge is started. Therefore, the operation of the switch means is impossible unless the output of the manual setting switch means is input, so that water is not discharged even if the switch means is operated by mistake.

[0019]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing an embodiment of a large space fire extinguishing system according to the present invention. In this figure, 1 is a water gun,
It is mounted on the pedestal 2 via a horizontal rotating portion 3 so as to be horizontally rotatable. Further, the water spray gun 1 is angled at an elevation angle θ (for example, around 25 °) that gives the maximum flight distance in the vertical direction.

The water gun 1 is supplied with fire extinguishing water pressurized by a fire extinguishing pump (not shown) through a secondary side water supply pipe 5A and compressed air through an air pipe 6. The compressed air supplied from the air pipe 6 is blown around the fire extinguishing water in the water spray gun 1, and by blowing this compressed air, a long distance and a wide spraying area can be secured with a low water discharge pressure and a small water discharge amount.

A motor-operated valve 7 is used to control the water discharge pressure. The motor-operated valve 7 is attached to a connecting portion between the secondary side water supply pipe 5A and the primary side water supply pipe 5B, and is opened / closed by a water discharge pressure control unit 8. Reference numeral 9 denotes a pressure sensor, the detection portion of which is inserted into the secondary side water supply pipe 5A and detects the pressure in the secondary side water supply pipe 5A.

The water discharge pressure control unit 8 controls the opening / closing of the motor-operated valve 7 to adjust the water discharge pressure, and controls the water discharge distance of the water discharge gun 1. In this case, the water discharge pressure control unit 8 takes the deviation between the set water pressure signal Pi detected by the pressure sensor 9 and the set pressure signal Pi supplied from the water spray gun operation panel 10 which will be described later, and the deviation. Amplifies the electric valve 7
Supply to. That is, feedback control is performed to maintain the water discharge pressure P detected by the pressure sensor 9 at the set pressure Pi.

Reference numerals 11A and 11B are fire detectors for scanning the surveillance area to detect the fire occurrence position, and are installed, for example, in a location where the surveillance area can be viewed obliquely from above. As the fire detectors 11A and 11B, for example, a detection unit is intermittently rotationally scanned in predetermined steps around a horizontal direction, and a vertical rotation is performed by a vertical rotation of a built-in reflecting mirror at each step, thereby causing a flame due to a fire. A thermal reflection type that detects the reflected energy from is used.

Reference numeral 13 denotes a speaker for emitting a notification sound, and the water spray gun operation panel 10 intermittently supplies a notification sound signal of a predetermined frequency. Reference numeral 14 is a monitor using a CRT or the like, and a video signal is supplied from the water gun operating panel 10.

The above-mentioned water spray gun 1 and the equipment attached thereto (frame 2, horizontal rotation part 3, primary side water supply pipe 5B, secondary side water supply pipe 5A, air pipe 6, motor operated valve 7, water discharge pressure control part 8). , Pressure sensor 9 and fire detectors 11A, 11
Three other units similar to B) are provided and each is controlled by the water gun operating panel 10.

The water gun operating panel 10 controls each part of the fire extinguishing system for a large space, and the fire detector 11 described above.
When the fire position is confirmed based on the detection signals output from A and 11B, the water gun 1 is oriented so that the fire extinguishing water is sprayed to that position, and the set pressure signal Pi corresponding to the set water discharge distance is set. It is supplied to the water discharge pressure control unit 8.

In this case, the water gun operating panel 10 displays a plan view 16 of the warning area on the display screen of the monitor 14 in a normal monitoring state, as shown in FIG. Marks 18a to 18d indicating the setting position of the water spray gun 1 are also displayed therein. Then, in this state, for example, when a fire is detected by the fire detectors 11A and 11B operating normally, the fire source position determined by the horizontal scanning angle θ and the vertical scanning angle α indicating the fire source position is set in the warning area plan view 16. It is displayed as a fire source position mark 20 inside.

Further, the water gun operating panel 10 is the fire detector 1
When a fire detection signal is output from 1A or 11B, or when a fire signal is supplied from a self-fire alarm receiver 70 that detects a fire in an area adjacent to the monitoring area of this system, a display that notifies this And the alarm sound signal is supplied to the speaker 13 to generate the alarm sound. Further, the water gun operating panel 10 enables insertion of a key 27 (see FIG. 4) into a key switch 25 described later. Details of inserting the key 27 into the key switch 25 will be described later.

On the front left panel LP of the water gun operating panel 10, a gun switch button 22 for selecting any one of the four water guns 1 set in the monitoring area and a water spray distance are set. A distance setting button 23 for switching between three steps of distance, middle distance, and short distance, and a rotation operation button 24 for rotating the water gun 1 clockwise or counterclockwise are attached.

On the front right panel RP, there are a key switch 25 for starting and stopping water discharge, and a manual setting switch 26 for releasing prohibition of insertion of the key 27 (see FIG. 4) into the key switch 25. Are attached respectively. Here, FIG. 3 is an enlarged view showing the key switch 25 and the manual setting switch 26. As shown in FIG. 3, the key switch 25 has three selection positions of “stop”, “localize”, and “water discharge”. It is set.

The key switch 25 is normally arranged so that the key 27 cannot be inserted, but as described above, a fire signal is supplied from the fire detectors 11A, 11B or the self-fire alarm receiver 70. In this case, and when the manual setting switch 26 is pressed, the insertion prohibited state is released and the key 27 can be inserted. The manual setting switch 26 is provided for use especially when a fire signal does not come in spite of the occurrence of a fire.

Here, FIG. 6A is a front view of the key switch 25, and FIG. 6B is a side view of the switch 25. Further, FIG. 6C is a rear view of the switch 25. In these figures, reference numeral 50 is a solenoid, which restricts the insertion and removal of the key 27. That is, when the solenoid 50 is not energized, the solenoid 50
Since the lock bar 50a of the key protrudes into the key switch 25, the insertion of the key 27 is prohibited. When the solenoid 50 is energized in this state, the lock bar 50a is pulled downward in the drawing, and the prohibition of insertion of the key 27 is released. Note that the key 27 can be removed from the key switch 25 only in the "localization" position. Therefore, key 2
When 7 is inserted into the key switch 25, the set position of the key switch 25 is always in the "localization" position.

Reference numeral 51 is a lead wire for the solenoid 50, through which power is supplied. Reference numerals 52a to 52c are micro switches, which are turned on / off at different timings by the cams 53a to 53c which rotate by inserting and rotating the key 27. FIG. 6B shows a state where the push button of the micro switch 52b is pushed by the cam 53b.

The micro switch 52b detects the setting of the key 27 to the "position" position, and the micro switch 52a detects the setting of the key 27 to the "stop" position. Further, the micro switch 52c detects the setting of the key 27 to the "water discharge" position.

The insertion of the key 27 into the key switch 25 is released, and when the key 27 is inserted and turned from the "localization" position to the "water discharge" position, water discharge is started from the selected water spray gun 1. Then, when the key 27 is further turned clockwise from the "water discharge" position to set the "stop" position, the water discharge is stopped.

Next, FIG. 5 is a block diagram showing the construction of the water gun operating panel 10. In this figure, 30 is CP
U and 31 are ROMs and 32 is a working RAM. In this case, a program for controlling the CPU 30 is written in the ROM 31. The working RAM 32 is used in the operation of the CPU 30.

A display control unit 33 inputs the display data created by the CPU 30 and controls the display on the monitor 14 based on the display data. Reference numeral 34 denotes a switch section composed of the gun switching button 22, the distance setting button 23, the rotation operation button 24, the key switch 25, the manual setting switch and the like. The key switch 25 includes a solenoid 50 and micro switches 52a to 52c. Reference numeral 35 denotes an I / O (input / output) unit, which is the CPU 30.
And the horizontal rotation unit 3, the water discharge pressure control unit 8, the fire detector 11
Signals are exchanged between A, 11B and the self-fired alarm receiver 70. The self-fire alarm receiver 70 has a monitoring range adjacent to the monitoring range of the fire detectors 11A and 11B as described above.

Reference numeral 36 denotes an alarm sound generating section, which is C when a fire signal or a release signal is output from the manual setting switch.
It operates according to a command from the PU 30 and outputs a notification sound signal.
As a result, the speaker 13 outputs, for example, a beep sound. Reference numeral 37 denotes a solenoid driving unit, which is used when the fire signal is supplied from the fire detectors 11A and 11B or the self-fire alarm receiver 70, and when the manual setting switch 26 is pressed.
The solenoid 50 is driven based on the command signal supplied from the solenoid 50.

The water discharge gun 1 corresponds to a water discharge means. The key switch 25 corresponds to a switch means.
Further, the CPU 30, ROM 31, working RAM
32, I / O 35, solenoid valve 7, water discharge pressure control section 8 and pressure sensor 9 constitute water discharge control means 100. Also,
The solenoid 50 corresponds to prohibiting means. Also, CP
The U30, the ROM 31, and the solenoid driving unit 37 constitute the releasing means 110. In addition, the fire detector 11A,
11B corresponds to a fire detector for large space monitoring. The manual setting switch 26 corresponds to a manual setting switch means.

The operation of the fire extinguishing system for large spaces configured as described above will be described with reference to the flowchart shown in FIG. Needless to say, since the processing is executed by the CPU 30, this CPU 30 is used as the subject.

After powering on the system, the CPU 30
Determines whether or not there is a fire signal in step S1. This fire signal is output from the fire detectors 11A and 11B or the self-fire alarm receiver 70. If it is determined that there is a fire signal, a command signal for operating the notification sound generating unit 36 is output in order to generate a notification sound in step S2. As a result, the notification sound generator 36 operates and the speaker 13 outputs the notification sound.

Next, in step S3, a release signal is supplied to the solenoid drive section 37. As a result, the solenoid driver 37 drives the solenoid 50 of the key switch 25.
Power is supplied to the lock bar 50a of the solenoid 50.
Goes down. As a result, the prohibition of key insertion is released, and the key 27 can be inserted into the key switch 25.

After performing the process of step S3, when the process proceeds to step S4, it is determined whether the key switch 25 is set to the "water discharge" position. In this case, when the release signal is output in step S3, the key 27 can be inserted, and the operator in charge inserts the key 27 into the key switch 25 and turns it from the "position" position to the "water discharge" position. As a result, the CPU 30 determines that the position has been set to the "water discharge" position, and starts water discharge in step S5. That is, when the fire position is confirmed based on the detection signals output from the fire detectors 11A and 11B, the water gun 1 is oriented so that the fire extinguishing water is sprayed to the position,
The set pressure signal Pi corresponding to the set water discharge distance is supplied to the water discharge pressure control unit 8.

After the water discharge is started, it is determined in step S6 whether or not the key switch 25 is set to the "stop" position. In this determination, if it is determined that the position is set to the "stop" position, the water discharge is stopped in step S7. That is, the output of the set pressure signal Pi is stopped. And after performing the process which stops water discharge, it returns to step S1 again.

On the other hand, when it is determined in step S1 that there is no fire signal, the process proceeds to step S8,
The presence / absence of a manual setting signal is determined. If it is determined that there is no manual setting signal in this determination, the process returns to step S1.
If it is determined that there is a manual setting signal, the process proceeds to step SP3 and a cancellation signal is output.

In the above embodiment, a so-called key lock system is adopted in which the solenoid 50 of the key switch 25 is operated by the fire signal or the manual setting signal to release the insertion of the key 27 into the key switch 25. If no signal or manual setting signal is output, key switch 2
Even if 5 is set to the "water discharge" position, the water may not be discharged. That is, the output timing of the activation signal for discharging water may be determined by ANDing the output of the key switch 25 and the fire signal or the manual setting signal.

Further, in the above embodiment, the prohibition and the release of the key 27 into the key switch 25 are performed by using the solenoid 50, but other than that, a motor, a piezoelectric element or the like may be used.

Further, in the above embodiment, the notification sound is output when the fire signal is supplied, but the notification may be performed by a voice message using voice synthesis.

[0049]

According to the present invention, a fire detector, or
Water discharge is not allowed unless a fire signal is supplied from the self-fire alarm receiver or the manual setting switch is pressed, so it is possible to prevent unintended water discharge and water discharge due to erroneous operation. Further, since water is not accidentally discharged, the effect of not causing water loss can be obtained.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing an embodiment of a large-scale fire extinguishing system according to the present invention.

FIG. 2 is a plan view showing an image displayed on a monitor of the fire extinguishing system for large spaces of the embodiment.

FIG. 3 is a plan view showing a key switch and a manual setting switch of the fire extinguishing system for large spaces of the embodiment.

FIG. 4 is a plan view showing a key used for the key switch of the fire extinguishing system for large spaces of the embodiment.

FIG. 5 is a block diagram showing a part of a configuration of a large-scale fire extinguishing system of the same embodiment.

FIG. 6 is a trihedral view showing a key switch of the fire extinguishing system for large spaces of the embodiment.

FIG. 7 is a flowchart for explaining a part of the processing of the large-area fire-extinguishing system according to the same embodiment.

[Explanation of symbols]

1 Water spray gun (water discharge means) 7 Solenoid valve 8 Water discharge pressure control section 9 Pressure sensor 11A, 11B Fire detector (fire detector for large space monitoring) 25 Key switch (switch means) 26 Manual setting switch (manual setting switch means) 27 keys 30 CPU 31 ROM 32 working RAM 35 I / O 37 solenoid drive unit 50 solenoids (prohibition means) 52a to 52c microswitch 70 self-fired alarm receiver 100 water discharge control means 110 release means

Claims (6)

[Claims] 1. A fire extinguishing system for a large space, comprising: a water discharge means for discharging water; a switch means for outputting a water discharge signal for starting water discharge; and a water discharge control means for controlling the water discharge means. The fire extinguishing system for large spaces, wherein the control means operates the water discharge means by inputting a fire signal and the water discharge signal. 2. A fire extinguishing system for large space, comprising: a water discharge means for discharging water; a switch means for outputting a water discharge signal for starting water discharge; and a water discharge control means for controlling the water discharge means. Providing a prohibiting means for prohibiting the use of the means, and a releasing means for invalidating the function of the prohibiting means by inputting a fire signal, the water discharge control means controls the water discharging means by inputting the water discharge signal. Fire extinguishing system for large spaces characterized by being operated. 3. The fire signal is output from a large space monitoring fire detector.
Alternatively, the large-scale fire extinguishing system according to claim 2. 4. The fire extinguishing system for large spaces according to claim 1, wherein the fire signal is output from a self-fire alarm receiver. 5. A fire extinguishing system for large space, comprising: a water discharge means for discharging water; a switch means for outputting a water discharge signal for starting water discharge; and a water discharge control means for controlling the water discharge means, wherein the manual setting is performed. A fire extinguisher system for a large space, characterized in that switch means is provided, and the water discharge control means operates the water discharge means by inputting the output of the manual setting switch means and the water discharge signal. 6. A fire extinguishing system for large space, comprising: a water discharge means for discharging water; a switch means for outputting a water discharge signal for starting water discharge; and a water discharge control means for controlling the water discharge means. Switch means, prohibition means for prohibiting the use of the switch means, and release means for invalidating the function of the prohibition means by inputting the output of the manual setting switch means, the water discharge control means, A fire extinguishing system for a large space, characterized in that the water discharge means is operated by inputting a water discharge signal.