JPH08266655A - Large space fire extinguishing device - Google Patents

Abstract

PURPOSE: To protect a specific device, and reliably extinguish a fire by evacuating the specific device in a fire occurrence position by fire occurrence information, outputting a completion signal when evacuation is completed, outputting a water discharge start signal after a prescribed time from the occurrence of a fire, and discharging water by either input of both signals. CONSTITUTION: A disaster preventive system confirms a fire by fire detection of an infrared ray sensor 3, and displays its effect. At the same time, a water discharge control part 7 demands evacuation of a crane T of a crane control part 4. Therefore, the crane T evacuates, and the crane control part 4 outputs an evacuation completion signal when evacuation is completed. Besides, a fire extinguishing pump is operated, and a water discharge gun 2 corresponding to a fire occurrence area is specified, and the target is controlled. When the target is completed, standby for water discharge is displayed, and at the same time, a timer part 6 is started, and counts time. When a prescribed time passes or an evacuation completion signal is outputted, an automatic valve of the water discharge gun 2 is opened, and water is discharged.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a large space fire extinguisher for detecting a fire and automatically extinguishing it.

[0002]

2. Description of the Related Art Conventionally, as a large space fire extinguisher in factories, stadiums, atriums, etc., there is a fire extinguisher for a dust pit, for example. The garbage pit is for storing the garbage before incineration at the garbage incinerator, and the introduced garbage is temporarily stored in the garbage pit, and the garbage in the garbage pit is conveyed by a crane device or the like and incinerated. Some of the garbage in this garbage pit may easily catch fire or become a direct ignition source, and it is also possible that a chemical reaction may occur in the garbage pit, causing it to reach a high temperature. There was a fire.

The fire extinguishing device for the dust pit detects the occurrence of a fire and the position of the fire in the dust pit by a temperature sensor, and extinguishes the detected fire by a fire extinguishing means such as spraying water. Specifically, for example, a temperature sensor such as an infrared sensor detects the surface temperature of dust stored in the dust pit for each predetermined region, and based on the detected temperature distribution in the dust pit, When the temperature rises above a certain level, it is considered that a fire has occurred in the area, and water is sprayed to this area with a water gun to extinguish the fire. This water gun can be several hundred liters per minute (for example, 60
It discharges a large amount of water (about 0 liter), which quickly extinguishes the high temperature area in the dust pit, which is estimated to be the fire source.

[0004]

However, in the above-described fire extinguisher, water is discharged immediately when a region having a predetermined temperature or higher is detected by a temperature sensor such as an infrared sensor, so that the following problems occur. There was a point. That is, all the water discharged into the garbage pit cannot be simply drained because it is treated as industrial waste, and cannot be disposed of unless it is once purified. However, as described above, once the water gun is operated, the amount of water discharged into the garbage pit becomes enormous, which makes it difficult to treat the discharged wastewater. Further, since the waste in the waste pit is an object to be incinerated, there is a problem in that it is difficult to incinerate the waste after being discharged.

That is, in the conventional example, the meaning of extinguishing fires for preventing fires was strong, and therefore the water gun was operated for any occurrence of a fire. For example, it is not necessary to use a water gun. It is not preferable to operate the water gun in the case where the water gun malfunctions due to a small-scale fire, malfunction of the temperature sensor, or the like, because post-treatment after water discharge is extremely troublesome. Furthermore, there is a crane device for transporting dust near the dust pit, and a crane device for transporting products in the manufacturing plant.When this crane device is located in the dust pit or in the factory, When water was sprayed by a water gun, water (or fire extinguishing liquid or powder fire extinguishing agent, etc.) was applied to the electric parts of the crane device, causing water spattering problems and equipment failure. .

An object of the present invention is to solve the above-mentioned problems and to provide a large space fire extinguisher capable of surely extinguishing a fire while protecting a specific device when discharging water.

[0007]

According to a first aspect of the invention for solving the above-mentioned problems, a fire extinguishing nozzle for discharging water to a predetermined area in a monitored area, a fire occurrence in the monitored area, and A fire detection unit for detecting the fire occurrence position, and for retracting the specific device to a predetermined position in the monitoring target area based on the information detection timing of the fire occurrence detected by the fire detection unit While outputting the evacuation request signal, and performing the position control of the fire extinguishing nozzle based on the specific device control unit that outputs the evacuation completion signal after the evacuation is completed, and the fire occurrence position detected by the fire detection unit, A fire extinguishing nozzle control unit that controls water discharge by the fire extinguishing nozzle based on a retract completion signal from the device control unit.

In order to solve the above-mentioned problems, the invention according to claim 2 has a fire-extinguishing nozzle for discharging water to a predetermined area in the monitored area, a fire occurrence in the monitored area, and a fire occurrence position. A fire detection unit that detects the fire, a water discharge control unit that outputs a water discharge start signal after a predetermined time has elapsed from the information detection timing of the fire occurrence detected by the fire detection unit, and the fire occurrence position detected by the fire detection unit. And a fire extinguishing nozzle control unit that controls the position of the fire extinguishing nozzle based on the fire extinguishing nozzle based on a water discharge starting signal from the water discharge controlling unit.

Further, according to a third aspect of the present invention which solves the above-mentioned problems, a fire extinguishing nozzle for spraying water to a predetermined area in the monitored area, a fire occurrence in the monitored area, and a fire occurrence position. A fire detection unit for detecting a fire, and an evacuation request signal for evacuating the specific device to a predetermined position based on the information detection timing of the fire occurrence detected by the fire detection unit. A specific device control unit that outputs an evacuation completion signal after completion of evacuation, and a water discharge control unit that outputs a water discharge start signal after a predetermined time has elapsed from the information detection timing of fire occurrence detected by the fire detection unit, and Position control of the fire extinguishing nozzle is performed based on the fire occurrence position detected by the fire detection unit, and the evacuation completion signal from the specific device control unit or And a fire-extinguishing nozzle control unit for water discharge control by the nozzle for the fire extinguishing based on water discharge start signal from the water discharge control unit.

Further, according to a fourth aspect of the present invention for solving the above-mentioned problems, there is provided a large space fire extinguisher in a dust pit having a crane device for transporting stored dust, wherein a predetermined area in the dust pit is provided. A fire extinguishing nozzle that discharges water, a fire detection unit that detects the occurrence of a fire in the garbage pit and the location of the fire occurrence, and the crane device is evacuated based on the fire detection information detection timing detected by the fire detection unit. A crane control unit that outputs an evacuation request signal for outputting the evacuation completion signal after completion of evacuation, a timer unit that starts based on the information detection timing of fire occurrence detected by the fire detection unit, and the fire. While performing the position control of the fire extinguishing nozzle based on the fire occurrence position detected by the detection unit,
Whether the evacuation completion signal is input from the crane control unit,
And a water spray gun control unit that controls the water discharge by the fire extinguishing nozzle when the measured value of the timer unit exceeds a predetermined value.

[0011]

When the fire detection unit detects a fire occurrence and the fire occurrence position in the monitored area, the specific device control unit outputs a save signal to the specific device and outputs a save completion signal after the specific device has been saved. In addition, the water discharge control unit outputs a water discharge start signal after a predetermined time has elapsed from the information detection timing of the fire occurrence detected by the fire detection unit. Then, the fire-extinguishing nozzle control unit controls the position of the fire-extinguishing nozzle in order to discharge water in the direction of the fire occurrence position, and either the evacuation completion signal from the specific device control unit or the water discharge start signal from the water discharge control unit is sent. Based on the input, water discharge control of the fire extinguishing nozzle is performed to discharge water to the fire occurrence position. That is, when water is discharged by the fire extinguishing nozzle, it is possible to protect the specific device by confirming the evacuation completion signal from the specific device control unit and discharging water, and also discharging water by the water discharge start signal from the water discharge control unit. Therefore, for example, even if the specific device cannot be evacuated due to an accident, the fire can be surely extinguished.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram showing a schematic configuration of a large space fire extinguisher 1 of the present embodiment, and shows an example of a case where the large space fire extinguisher 1 of the present invention is applied as a fire extinguisher for a dust pit. That is, the large space fire extinguisher 1 of this embodiment is
The inside of the dust pit 10 for storing dust is used as a monitoring target area, and the crane device T is provided as a specific device to serve as a fire extinguishing device for extinguishing a fire occurring in the dust pit 10.

As shown in FIG. 1, this large space fire extinguisher 1 has a water spray gun (fire extinguishing nozzle) 2, an infrared sensor (fire detector) 3, a crane controller (specific device controller) 4.
And a water spray gun control section (fire extinguishing nozzle control section) 7 including a sighting control section 5 and a timer section (water discharge control section) 6. The water spray gun 2 discharges water of about several hundred liters per minute (for example, 600 liters per minute) to a predetermined area in the dust pit 10, and the infrared sensor 3
Is disposed above the dust pit 10, and the dust pit 10
This is a temperature sensor that monitors a temperature change in the inside and detects a fire occurrence and a fire occurrence position for each predetermined area by two-dimensionally scanning from above as shown in FIG. In this case, the height information indicating the fire occurrence position in the dust pit 10 is obtained by providing a height sensor provided separately from the infrared sensor 3, and for example, a focus point for the target image and The height can be obtained by calculation based on the zoom ratio when the image has a predetermined image size.

The crane control unit 4 outputs a control signal for carrying the dust in the dust pit 10 to the crane device T which is the specific device in this embodiment, and the fire detection unit. When 3 detects a fire, it outputs an evacuation request signal for evacuating the crane device T to a predetermined crane evacuation position as a predetermined position area provided outside the dust pit 10, and the crane evacuation of the crane device T is performed. When the evacuation to the position is completed, an evacuation completion signal is output to the water gun control unit 7.

The water spray gun control unit 7 is a sighting control unit 5 for controlling the vertical and horizontal movements of the water spray gun 2 and the nozzle shape.
And the timer unit 6 which is activated based on the detection timing of the fire occurrence information from the infrared sensor 3 and outputs a water discharge start signal at a preset time (set to 6 minutes in this embodiment). Then, the opening / closing control of the valve of the water source supplied to the water spray gun 2 at the start of water discharge is performed.
When the water discharge gun 2 controls the water discharge, the water discharge control is performed based on the signal output of either the evacuation completion signal output from the crane control unit 4 or the water discharge start signal output from the timer unit 6.

FIG. 3 is a schematic plan view of the dust pit 10. The dust pit 10 is, for example, 20 m in length and 40 in width.
It is a rectangular parallelepiped container with a depth of 30 m and a depth of 30 m. Two water spray guns 2a and 2b are installed in the vicinity of both sides of the opposing short side in total, and a total of two water guns 2a and 2b are installed at the center of the position near one side of the longitudinal direction. The monitoring room S is installed and this monitoring room S
One water spray gun 2c is installed in front of. And
The crane device T can freely move along the rails in the arrow X direction and the arrow Y direction in FIG. 3, and can be raised and lowered by lowering or winding the wire cable.

Next, the operation of this embodiment will be described. 4 and 5 are flowcharts of the main processing of this embodiment. In the following description, S indicates a processing step. First, the infrared sensor 3 checks whether or not a fire has occurred (S1). When a fire is detected, the disaster prevention system in the monitoring room S outputs a fire confirmation output, and a display indicating that the fire has occurred is displayed. (S2).
At this time, the water spray gun control unit 7 outputs a crane evacuation request signal to the crane control unit 4, and in response to this signal, the crane control unit 4 outputs a crane evacuation request signal to the crane device T. Then, it is checked whether or not the operation of the fire pump has been started (S3), and when the operation of the fire pump is confirmed, an operation command is output to the fire pump (S).
4).

Here, it is checked whether the operation mode in the disaster prevention system is the automatic mode or the manual mode (S5). If the operation mode is the manual mode, the manual control process described later is executed (S6), and the automatic mode is set. If there is, it is checked whether or not it is ready to receive the fire position and height data (S7). When ready to receive the data, the water gun control unit 7 receives the data of the fire occurrence position from the infrared sensor 3 and the height data from the height sensor (not shown), and notifies the fire position and height to the disaster prevention system. And are displayed (S8).

Next, based on the input data of the fire occurrence position, it is checked whether or not the fire occurrence position is the water discharge target section by the water discharge gun 2b (B water discharge gun in FIG. 3) (S).
9) If it is not the water spraying target section by the water spray gun 2b, it is judged that it is the water spraying target section by the water spray gun 2a (A water spray gun in FIG. 3), and the aiming control unit 5 controls the aiming of the water spray gun 2a (S10). ). On the other hand, in the determination processing of S9,
When the fire occurrence position is the water spray target section by the water spray gun 2b, an opening command for the door provided on the front surface of the water spray gun 2b is issued (S11), and when the door has finished opening, the aiming control unit 5 controls the aiming of the water spray gun 2b. Is performed (S12, S13). Then, during the aiming control by the aiming control unit 5, a display indicating that the aiming is being made is displayed on the disaster prevention system (S14). In addition, a door that is always open is provided on the entire surface of the water gun 2a,
If this door is closed, an opening command is issued as in the process of S11.

When the sighting is completed (S15), the disaster prevention system displays a water discharge standby display (S16), and the timer section 6 starts counting time (S17). Then, the timer unit 6 measures the time for 6 minutes, and when the time is up (S1
8) If the evacuation completion signal is input from the crane control unit 4 after confirming with the crane control unit 4 whether or not the evacuation of the crane device T is completed (S19), it is indicated that the disaster prevention system is preparing to discharge water. Display is performed (S20). Next, it is checked whether the water gun 2 to be used is the water gun 2a or the water gun 2b (S21), and when the water gun 2a is used, the automatic valve of the water gun 2a is opened (S22), and the water gun 2b is opened. When using, the automatic valve of the water gun 2b is opened (S23). When the automatic valve is opened, it is checked whether or not the pressure switch is turned on (S24), and if it is turned on, it is assumed that the water discharge by the water spray gun 2 has started, and the disaster prevention system is automatically discharging water. A message to that effect is displayed (S25), and an interrupt process waits.

FIG. 6 is a flowchart of the manual control process of this embodiment. In the manual control process, first, the automatic aiming control of the water gun 2 is stopped (S31), and the three water guns 2a to
2c of which water gun 2 is to be used is selected (S3
2). Here, it is checked whether or not the water spray gun 2b is selected (S33), and if the water spray gun 2b is selected in this determination process, whether or not the door provided on the front surface of the water spray gun 2b is opened. A check is performed (S34), and when the door is not open, a door open command is issued to open the door (S3).
5, S36).

Next, a manual operation is selected (S37),
If the joystick operation is selected, a message indicating that the disaster prevention system is being aimed is displayed (S3
8) The aiming control of the water spray gun 2 selected in the process of S32 is performed by the joystick operation in the operation room (S39). Then, the manual control process is executed again (S
40). In addition, in the selection process of S37, when the water discharge operation is selected, the disaster prevention system displays a message indicating that the water discharge is being prepared (S41), and opens the automatic valve of the water spray gun 2 selected in the process of S32 ( S42). When the automatic valve is opened, it is checked whether or not the pressure switch is turned on (S43), and if it is turned on, it is considered that the water discharge by the water spray gun 2 has started, and the disaster prevention system is manually discharging water. A message to that effect is displayed (S44), and the manual control process is executed again (S45). Further, in the selection process of S37, when the water discharge stopping operation is selected, the automatic valve of the target water gun 2 is closed (S46), and the manual control process is executed again (S47). When exiting this processing, the operation mode is switched to the automatic mode by executing the automatic / manual switching interrupt processing described later.

FIG. 7 is a flow chart of the automatic / manual switching interrupt processing of this embodiment. The automatic / manual switching interrupt process switches a preset operation mode by an interrupt process. When the operation mode is switched, it is determined whether the switched current operation mode is the automatic mode or the manual mode. Check (S5
1) If the mode is the manual mode, the above-mentioned manual control process is executed (S52). If the mode is the automatic mode, the infrared sensor 3 checks whether or not a fire has occurred (S5).
3) When the occurrence of a fire is detected, the process proceeds to S7 of FIG. 4 in order to perform aiming control. On the other hand, when no fire has occurred, the process waits for an interrupt.

That is, when a fire occurrence signal indicating that a fire has occurred in the dust pit 10 is input to the water spray gun control unit 7 from the infrared sensor 3, the water spray gun control unit 7 starts the time counting by the timer unit 6. , And requests the crane controller 4 to retract the crane device T. Then, the crane controller 4 outputs a retract request signal to the crane device T to retract the crane device T to the crane retract position. In this state, the disaster prevention system including the large space fire extinguisher 1 notifies the occurrence of a fire and sets the timer unit 6 to 6
Minutes are given by the supervisor of the disaster prevention system as visual confirmation time of the fire condition. On the other hand, when the crane device T receives the evacuation request signal, the crane device T retreats to the crane evacuation position, and then sends a signal indicating that the evacuation is completed, to the crane control unit 4.
Then, the evacuation completion signal is output from the crane control unit 4 to the water gun control unit 7.

The monitoring room S is usually unattended, and the observer is in the central monitoring room, which is slightly away from the monitoring room S. The purpose of providing the timer unit 6 is to increase the time it takes for the supervisor to come from the central monitoring room to the monitoring room S, in other words, to execute water discharge after the supervisor comes to the monitoring room S. The time is appropriately set according to the distance between them. That is, when the occurrence of a fire is notified, the monitor heads to the monitoring room S to confirm the fire. As a result of confirmation by the observer, if the fire can be extinguished without using the water spray gun 2, cancel input to the water spray gun control unit 7 to stop automatic water discharge control by the water spray gun 2. Then, the fire is extinguished by a fire hydrant or the like that discharges water with a smaller output than that of the water gun 2. Then, when the degree of fire is great, the fire is extinguished by the water gun 2 by automatic or manual operation. As a result, in this embodiment,
Since the fire extinguishing means can be selected depending on the extent of the fire, the number of treatments of waste water can be reduced, and the subsequent incineration of waste can be facilitated. Since the crane device T is retracted to a safe position during water discharge, the crane device failure due to water discharge can be prevented, and the water spray from the water spray gun 2 is not disturbed by the crane device T.

As described above, in this embodiment, it is possible to effectively use water resources without wasteful water discharge and to efficiently extinguish a fire.

In the above embodiment, the evacuation completion signal is output when the crane device T retreats to the crane evacuation position, but the crane device T outputs the evacuation completion signal at the timing. It may be configured to output when it is wound up by the wire cable and positioned above the dust pit 10. In other words, the retracted position of the crane device T may be output at any time as long as it is a position that does not hinder the water spray gun 2 from discharging water to the fire source. The timer unit 6 is activated when the aiming of the water spray gun 2 is completed, but since the aiming position adjustment of the water spray gun 2 to the fire source does not take so much time, the fire detecting unit 3 The timer unit 6 may be activated when a fire is detected.

In the above embodiment, an infrared sensor is used as an example of the fire detecting section 3. However, for example, a photoelectric separation type sensor is arranged on a matrix to detect a fire. Good. Further, in the above embodiment, as the time required for the judgment by the system supervisor,
Although the time set in the timer unit 6 is 6 minutes, this set time can be freely set according to the installation conditions. In the above embodiment, the inside of the dust pit 10 is taken as an example of the area to be monitored and the crane device T is taken as an example of the specific device. However, the present invention is not limited to this.
It can also be applied to a similar system using machines and the like, which are vulnerable to water and moisture, in a large space area such as a factory or a stadium.

[0029]

As is apparent from the above description, according to the present invention, when water is discharged by the fire extinguishing nozzle, by confirming the evacuation signal from the specific device control unit and discharging the water, the specific device is damaged by the water discharge. Can be protected from. Even if the specified device cannot be retracted to the specified retracted position due to a failure or accident, for example, a reliable fire extinguishing can be performed by extinguishing water by discharging water based on the water discharge start signal from the water discharge control unit. You can

[Brief description of drawings]

FIG. 1 is a diagram showing a schematic configuration of a large space fire extinguisher according to the present embodiment.

FIG. 2 is a diagram showing a schematic configuration of an infrared sensor.

FIG. 3 is a schematic plan view of a dust pit.

FIG. 4 is a flowchart of a main process of this embodiment.

FIG. 5 is a flowchart of main processing of the present embodiment, which is subsequent to FIG.

FIG. 6 is a flowchart of a manual control process of this embodiment.

FIG. 7 is a flowchart of automatic / manual switching interrupt processing according to this embodiment.

[Explanation of symbols]

 1 Large space fire extinguisher 2 Water gun (fire extinguishing nozzle) 3 Infrared sensor (fire detection part) 4 Crane control part (specific device control part) 5 Aiming control part 6 Timer part (water discharge control part) 7 Water spray gun control part (fire extinguishing part) Nozzle control unit) 10 Garbage pit A Crane device (specific device)

Claims (4)

[Claims] 1. A fire extinguishing nozzle that discharges water to a predetermined area in a monitored area, a fire detection section that detects a fire occurrence and a fire occurrence position in the monitored area, and a fire detection section that detects the fire. A specific device that outputs an evacuation request signal to the specific device in the monitored area to evacuate the specific device to a predetermined position based on the information detection timing of the fire occurrence, and also outputs an evacuation completion signal after the evacuation is completed The position of the fire extinguishing nozzle is controlled based on the control unit and the fire occurrence position detected by the fire detecting unit, and the water discharge control by the fire extinguishing nozzle is performed based on the evacuation completion signal from the specific device control unit. A large space fire extinguisher, comprising: a fire extinguishing nozzle controller. 2. A fire extinguishing nozzle that sprays water to a predetermined area in the monitored area, a fire detection section that detects a fire occurrence and a fire occurrence position in the monitored area, and a fire detection section that detects the fire. A water discharge control unit that outputs a water discharge start signal after a lapse of a predetermined time from the information detection timing of the fire occurrence, and position control of the fire extinguishing nozzle based on the fire occurrence position detected by the fire detection unit, and the water discharge A large space fire extinguisher, comprising: a fire extinguishing nozzle control unit that controls water discharge by the fire extinguishing nozzle based on a water discharge starting signal from the control unit. 3. A fire extinguishing nozzle that discharges water to a predetermined area in the monitored area, a fire detection section that detects the occurrence of a fire and the location of the fire in the monitored area, and a fire detection section that detects the fire. A specific device that outputs an evacuation request signal to the specific device in the monitored area to evacuate the specific device to a predetermined position based on the information detection timing of the fire occurrence, and outputs an evacuation completion signal after the evacuation is completed A control unit, a water discharge control unit that outputs a water discharge start signal after a predetermined time has elapsed from the information detection timing of the fire occurrence detected by the fire detection unit, and the fire extinguishing based on the fire occurrence position detected by the fire detection unit. The position control of the nozzle for water is performed, and based on the evacuation completion signal from the specific device controller or the water discharge start signal from the water discharge controller, A large space fire extinguisher device comprising: a fire extinguishing nozzle control unit for controlling water discharge by a fire nozzle. 4. A large space fire extinguisher in a dust pit having a crane device for transporting stored dust, the fire extinguishing nozzle spraying water to a predetermined area in the dust pit, and the occurrence of a fire in the dust pit. And a fire detection unit for detecting the fire occurrence position, and an evacuation request signal for evacuating the crane device based on the information detection timing of the fire occurrence detected by the fire detection unit, and evacuation after the evacuation is completed. A crane control unit that outputs a completion signal, a timer unit that starts based on the information detection timing of the fire occurrence detected by the fire detection unit, and the fire extinguishing unit based on the fire occurrence position detected by the fire detection unit The position of the nozzle is controlled, and whether the evacuation completion signal is input from the crane control unit or the timer unit Value large space fire extinguishing apparatus, characterized in that it and a fire extinguishing nozzle control unit for water discharge control by the fire-extinguishing nozzles in either the time exceeds a predetermined value.